diff --git a/README.md b/README.md
index 90f173a..64ca8dd 100644
--- a/README.md
+++ b/README.md
@@ -479,6 +479,9 @@ Pull Request should include source code (./scr) changes, may include tests (./te
## Change log
+### v1.8.2
+ * Fixed edge cases when removing items.
+
### v1.8.1
* Removed deprecated bind/unbind methods.
diff --git a/bower.json b/bower.json
index d25e625..3f8938f 100644
--- a/bower.json
+++ b/bower.json
@@ -1,7 +1,7 @@
{
"name": "angular-ui-scroll",
"description": "AngularJS infinite scrolling module",
- "version": "1.8.1",
+ "version": "1.8.2",
"main": "./dist/ui-scroll.js",
"homepage": "https://github.com/angular-ui/ui-scroll.git",
"license": "MIT",
diff --git a/dist/ui-scroll-grid.js b/dist/ui-scroll-grid.js
index c83c741..2fff64c 100644
--- a/dist/ui-scroll-grid.js
+++ b/dist/ui-scroll-grid.js
@@ -1,7 +1,7 @@
/*!
* angular-ui-scroll
* https://github.com/angular-ui/ui-scroll
- * Version: 1.8.1 -- 2020-05-13T13:54:15.842Z
+ * Version: 1.8.2 -- 2020-10-02T15:06:03.904Z
* License: MIT
*/
/******/ (function(modules) { // webpackBootstrap
diff --git a/dist/ui-scroll-grid.js.map b/dist/ui-scroll-grid.js.map
index e4b95e0..3b3ee49 100644
--- a/dist/ui-scroll-grid.js.map
+++ b/dist/ui-scroll-grid.js.map
@@ -1 +1 @@
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ColumnAdapter(this, column)));\r\n return result;\r\n };\r\n\r\n this.getLayout = function() {\r\n let result = [];\r\n columns.forEach((column, index) => result.push({\r\n index: index,\r\n css: angular.extend({}, column.css),\r\n mapTo: column.mapTo\r\n }));\r\n return result;\r\n };\r\n\r\n this.applyLayout = function(layouts) {\r\n if (!layouts || layouts.length != columns.length) {\r\n throw new Error('Failed to apply layout - number of layouts should match number of columns');\r\n }\r\n layouts.forEach((layout, index) => columns[index].applyLayout(layout));\r\n transform(columns.map((column) => column.header));\r\n rowMap.forEach((row) => transform(row));\r\n };\r\n\r\n this.moveBefore = function(selected, target) {\r\n let index = target;\r\n\r\n if (target % 1 !== 0) {\r\n index = target ? columns[target.columnId].mapTo : columns.length;\r\n }\r\n if (index < 0 || index > columns.length) {\r\n return; // throw an error?\r\n }\r\n\r\n let mapTo = selected.mapTo,\r\n next = null;\r\n index -= mapTo < index ? 1 : 0;\r\n\r\n columns.forEach(c => {\r\n c.mapTo -= c.mapTo > mapTo ? 1 : 0;\r\n c.mapTo += c.mapTo >= index ? 1 : 0;\r\n next = c.mapTo === index + 1 ? c : next;\r\n });\r\n\r\n selected.mapTo = index;\r\n selected.moveBefore(next);\r\n };\r\n\r\n this.exchangeWith = function(selected, index) {\r\n if (index < 0 || index >= columns.length) {\r\n return;\r\n }\r\n columns.find(c => c.mapTo === index).mapTo = selected.mapTo;\r\n selected.mapTo = index;\r\n };\r\n\r\n this.columnFromPoint = function(x, y) {\r\n let column = columns.find(col => col.columnFromPoint(x, y));\r\n return column ? new ColumnAdapter(this, column) : undefined;\r\n };\r\n\r\n // function definitions\r\n\r\n function transform(row) {\r\n let parent = row[0].parent();\r\n let visible = [];\r\n\r\n row.forEach((cell, index) => {\r\n columns[index].applyCss(cell);\r\n visible[columns[index].mapTo] = row[index];\r\n row[index].detach();\r\n });\r\n\r\n visible.forEach(cell => 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\ No newline at end of file
diff --git a/dist/ui-scroll-grid.min.js.map b/dist/ui-scroll-grid.min.js.map
index 7d351ad..41507d4 100644
--- a/dist/ui-scroll-grid.min.js.map
+++ b/dist/ui-scroll-grid.min.js.map
@@ -1 +1 @@
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ColumnAdapter(this, column)));\r\n return result;\r\n };\r\n\r\n this.getLayout = function() {\r\n let result = [];\r\n columns.forEach((column, index) => result.push({\r\n index: index,\r\n css: angular.extend({}, column.css),\r\n mapTo: column.mapTo\r\n }));\r\n return result;\r\n };\r\n\r\n this.applyLayout = function(layouts) {\r\n if (!layouts || layouts.length != columns.length) {\r\n throw new Error('Failed to apply layout - number of layouts should match number of columns');\r\n }\r\n layouts.forEach((layout, index) => columns[index].applyLayout(layout));\r\n transform(columns.map((column) => column.header));\r\n rowMap.forEach((row) => transform(row));\r\n };\r\n\r\n this.moveBefore = function(selected, target) {\r\n let index = target;\r\n\r\n if (target % 1 !== 0) {\r\n index = target ? columns[target.columnId].mapTo : columns.length;\r\n }\r\n if (index < 0 || index > columns.length) {\r\n return; // throw an error?\r\n }\r\n\r\n let mapTo = selected.mapTo,\r\n next = null;\r\n index -= mapTo < index ? 1 : 0;\r\n\r\n columns.forEach(c => {\r\n c.mapTo -= c.mapTo > mapTo ? 1 : 0;\r\n c.mapTo += c.mapTo >= index ? 1 : 0;\r\n next = c.mapTo === index + 1 ? c : next;\r\n });\r\n\r\n selected.mapTo = index;\r\n selected.moveBefore(next);\r\n };\r\n\r\n this.exchangeWith = function(selected, index) {\r\n if (index < 0 || index >= columns.length) {\r\n return;\r\n }\r\n columns.find(c => c.mapTo === index).mapTo = selected.mapTo;\r\n selected.mapTo = index;\r\n };\r\n\r\n this.columnFromPoint = function(x, y) {\r\n let column = columns.find(col => col.columnFromPoint(x, y));\r\n return column ? new ColumnAdapter(this, column) : undefined;\r\n };\r\n\r\n // function definitions\r\n\r\n function transform(row) {\r\n let parent = row[0].parent();\r\n let visible = [];\r\n\r\n row.forEach((cell, index) => {\r\n columns[index].applyCss(cell);\r\n visible[columns[index].mapTo] = row[index];\r\n row[index].detach();\r\n });\r\n\r\n visible.forEach(cell => parent.append(cell));\r\n }\r\n\r\n }\r\n\r\n return {\r\n require: ['^^uiScrollViewport'],\r\n restrict: 'A',\r\n link: ($scope, element, $attr, controllers) => {\r\n controllers[0].gridController = controllers[0].gridController || new GridController(controllers[0]);\r\n controllers[0].gridController.registerColumn(element);\r\n }\r\n };\r\n }])\r\n\r\n.directive('uiScrollTd', function() {\r\n return {\r\n require: ['?^^uiScrollViewport'],\r\n restrict: 'A',\r\n link: ($scope, element, $attr, controllers) => {\r\n if (!controllers[0]) {\r\n return;\r\n }\r\n let scope = $scope;\r\n let tdInitializer = $scope.uiScrollTdInitializer;\r\n if (!tdInitializer) {\r\n tdInitializer = $scope.uiScrollTdInitializer = {\r\n linking: true\r\n };\r\n }\r\n if (!tdInitializer.linking) {\r\n scope = tdInitializer.scope;\r\n }\r\n let gridController = controllers[0].gridController;\r\n if (gridController.registerCell(scope, element)) {\r\n $scope.$on('$destroy', () => gridController.unregisterCell(scope, element));\r\n }\r\n if (!tdInitializer.linking) {\r\n tdInitializer.onLink();\r\n }\r\n }\r\n };\r\n});\r\n"],"sourceRoot":""}
\ No newline at end of file
diff --git a/dist/ui-scroll-jqlite.min.js b/dist/ui-scroll-jqlite.min.js
index c542a1a..af1c87f 100644
--- a/dist/ui-scroll-jqlite.min.js
+++ b/dist/ui-scroll-jqlite.min.js
@@ -1,12 +1 @@
-/*!
- * angular-ui-scroll
- * https://github.com/angular-ui/ui-scroll.git
- * This module is deprecated since 1.6.0 and will be removed in future versions!
- * License: MIT
- */
-(function () {
- 'use strict';
-
- angular.module('ui.scroll.jqlite', []);
-
-})();
\ No newline at end of file
+!function(){"use strict";angular.module("ui.scroll.jqlite",[])}();
\ No newline at end of file
diff --git a/dist/ui-scroll.js b/dist/ui-scroll.js
index 328b220..385a5a5 100644
--- a/dist/ui-scroll.js
+++ b/dist/ui-scroll.js
@@ -1,7 +1,7 @@
/*!
* angular-ui-scroll
* https://github.com/angular-ui/ui-scroll
- * Version: 1.8.1 -- 2020-05-13T13:54:15.842Z
+ * Version: 1.8.2 -- 2020-10-02T15:06:03.904Z
* License: MIT
*/
/******/ (function(modules) { // webpackBootstrap
@@ -509,7 +509,16 @@ function () {
}();
+// CONCATENATED MODULE: ./src/modules/utils.js
+var OPERATIONS = {
+ PREPEND: 'prepend',
+ APPEND: 'append',
+ INSERT: 'insert',
+ REMOVE: 'remove',
+ NONE: 'none'
+};
// CONCATENATED MODULE: ./src/modules/buffer.js
+
function ScrollBuffer(elementRoutines, bufferSize, startIndex) {
var buffer = Object.create(Array.prototype);
angular.extend(buffer, {
@@ -528,7 +537,7 @@ function ScrollBuffer(elementRoutines, bufferSize, startIndex) {
append: function append(items) {
items.forEach(function (item) {
++buffer.next;
- buffer.insert('append', item);
+ buffer.insert(OPERATIONS.APPEND, item);
});
buffer.maxIndex = buffer.eof ? buffer.next - 1 : Math.max(buffer.next - 1, buffer.maxIndex);
},
@@ -540,7 +549,7 @@ function ScrollBuffer(elementRoutines, bufferSize, startIndex) {
--buffer.first;
}
- buffer.insert('prepend', item);
+ buffer.insert(OPERATIONS.PREPEND, item);
});
buffer.minIndex = buffer.bof ? buffer.minIndex = buffer.first : Math.min(buffer.first, buffer.minIndex);
},
@@ -549,19 +558,19 @@ function ScrollBuffer(elementRoutines, bufferSize, startIndex) {
* inserts wrapped element in the buffer
* the first argument is either operation keyword (see below) or a number for operation 'insert'
* for insert the number is the index for the buffer element the new one have to be inserted after
- * operations: 'append', 'prepend', 'insert', 'remove', 'update', 'none'
+ * operations: 'append', 'prepend', 'insert', 'remove', 'none'
*/
- insert: function insert(operation, item, isTop) {
+ insert: function insert(operation, item, shiftTop) {
var wrapper = {
item: item
};
if (operation % 1 === 0) {
// it is an insert
- wrapper.op = 'insert';
+ wrapper.op = OPERATIONS.INSERT;
buffer.splice(operation, 0, wrapper);
- if (isTop) {
+ if (shiftTop) {
buffer.first--;
} else {
buffer.next++;
@@ -570,11 +579,11 @@ function ScrollBuffer(elementRoutines, bufferSize, startIndex) {
wrapper.op = operation;
switch (operation) {
- case 'append':
+ case OPERATIONS.APPEND:
buffer.push(wrapper);
break;
- case 'prepend':
+ case OPERATIONS.PREPEND:
buffer.unshift(wrapper);
break;
}
@@ -589,26 +598,25 @@ function ScrollBuffer(elementRoutines, bufferSize, startIndex) {
}
return buffer.splice(arg1, arg2 - arg1);
- } // removes single item(wrapper) from the buffer
+ } // removes single item (wrapper) from the buffer
buffer.splice(buffer.indexOf(arg1), 1);
- if (arg1._op === 'isTop' && buffer.first === this.getAbsMinIndex()) {
+ if (arg1.shiftTop && buffer.first === this.getAbsMinIndex()) {
this.incrementMinIndex();
} else {
this.decrementMaxIndex();
}
- if (arg1._op === 'isTop') {
+ if (arg1.shiftTop) {
buffer.first++;
} else {
buffer.next--;
}
if (!buffer.length) {
- buffer.first = 1;
- buffer.next = 1;
+ buffer.minIndex = Math.min(buffer.maxIndex, buffer.minIndex);
}
return elementRoutines.removeElementAnimated(arg1);
@@ -666,7 +674,7 @@ function ScrollBuffer(elementRoutines, bufferSize, startIndex) {
},
getItems: function getItems() {
return buffer.filter(function (item) {
- return item.op === 'none';
+ return item.op === OPERATIONS.NONE;
});
},
getFirstItem: function getFirstItem() {
@@ -727,9 +735,9 @@ function () {
}
}, {
key: "remove",
- value: function remove(argument, _isTop) {
+ value: function remove(argument, _shiftTop) {
var index = argument % 1 === 0 ? argument : argument.scope.$index;
- var isTop = argument % 1 === 0 ? _isTop : argument._op === 'isTop';
+ var shiftTop = argument % 1 === 0 ? _shiftTop : argument.shiftTop;
for (var i = this.length - 1; i >= 0; i--) {
if (this[i].index === index) {
@@ -738,7 +746,7 @@ function () {
}
}
- if (!isTop) {
+ if (!shiftTop) {
for (var _i = this.length - 1; _i >= 0; _i--) {
if (this[_i].index > index) {
this[_i].index--;
@@ -1015,9 +1023,9 @@ function Viewport(elementRoutines, buffer, element, viewportController, $rootSco
bottomPadding.height(0);
bottomPadding.cache.clear();
},
- removeCacheItem: function removeCacheItem(item, isTop) {
- topPadding.cache.remove(item, isTop);
- bottomPadding.cache.remove(item, isTop);
+ removeCacheItem: function removeCacheItem(item, shiftTop) {
+ topPadding.cache.remove(item, shiftTop);
+ bottomPadding.cache.remove(item, shiftTop);
},
removeItem: function removeItem(item) {
this.removeCacheItem(item);
@@ -1033,7 +1041,9 @@ function adapter_defineProperties(target, props) { for (var i = 0; i < props.len
function adapter_createClass(Constructor, protoProps, staticProps) { if (protoProps) adapter_defineProperties(Constructor.prototype, protoProps); if (staticProps) adapter_defineProperties(Constructor, staticProps); return Constructor; }
-var Adapter =
+
+
+var adapter_Adapter =
/*#__PURE__*/
function () {
function Adapter($scope, $parse, $attr, viewport, buffer, doAdjust, reload) {
@@ -1239,10 +1249,13 @@ function () {
if (!newItems.reverse().some(function (newItem) {
return newItem === wrapper.item;
})) {
- wrapper.op = 'remove';
+ wrapper.op = OPERATIONS.REMOVE; // try to catch "first" edge case on remove
- if (!options.immutableTop && position === 0 && !newItems.length) {
- wrapper._op = 'isTop'; // to catch "first" edge case on remove
+ if (!options.immutableTop && !newItems.length) {
+ // this is the first item, or the previous one's part of the "shift-top" group
+ if (position === 0 && this.buffer.bof || position !== 0 && this.buffer[position - 1].shiftTop) {
+ wrapper.shiftTop = true;
+ }
}
}
@@ -1250,7 +1263,7 @@ function () {
if (newItem === wrapper.item) {
position--;
} else {
- // 3 parameter (isTop) is to catch "first" edge case on insert
+ // 3 parameter (shiftTop) is to catch "first" edge case on insert
_this3.buffer.insert(position + 1, newItem, !options.immutableTop && position === -1);
}
});
@@ -1317,13 +1330,14 @@ function () {
return Adapter;
}();
-/* harmony default export */ var modules_adapter = (Adapter);
+/* harmony default export */ var modules_adapter = (adapter_Adapter);
// CONCATENATED MODULE: ./src/ui-scroll.js
+
angular.module('ui.scroll', []).constant('JQLiteExtras', jqLiteExtras_JQLiteExtras).run(['JQLiteExtras', function (JQLiteExtras) {
var elt = angular.element;
!(window.jQuery && elt.fn && elt.fn.jquery) ? new JQLiteExtras().registerFor(elt) : null;
@@ -1525,12 +1539,12 @@ angular.module('ui.scroll', []).constant('JQLiteExtras', jqLiteExtras_JQLiteExtr
doAdjust();
}
};
- /**
- * Build padding elements
- *
- * Calling linker is the only way I found to get access to the tag name of the template
- * to prevent the directive scope from pollution a new scope is created and destroyed
- * right after the builder creation is completed
+ /**
+ * Build padding elements
+ *
+ * Calling linker is the only way I found to get access to the tag name of the template
+ * to prevent the directive scope from pollution a new scope is created and destroyed
+ * right after the builder creation is completed
*/
@@ -1647,23 +1661,23 @@ angular.module('ui.scroll', []).constant('JQLiteExtras', jqLiteExtras_JQLiteExtr
var inserted = [];
buffer.forEach(function (wrapper, i) {
switch (wrapper.op) {
- case 'prepend':
+ case OPERATIONS.PREPEND:
toBePrepended.unshift(wrapper);
break;
- case 'append':
+ case OPERATIONS.APPEND:
insertWrapperContent(wrapper, i);
- wrapper.op = 'none';
+ wrapper.op = OPERATIONS.NONE;
inserted.push(wrapper);
break;
- case 'insert':
+ case OPERATIONS.INSERT:
promises = promises.concat(createElement(wrapper, i, viewport.insertElementAnimated));
- wrapper.op = 'none';
+ wrapper.op = OPERATIONS.NONE;
inserted.push(wrapper);
break;
- case 'remove':
+ case OPERATIONS.REMOVE:
toBeRemoved.push(wrapper);
}
});
@@ -1672,7 +1686,7 @@ angular.module('ui.scroll', []).constant('JQLiteExtras', jqLiteExtras_JQLiteExtr
});
if (toBePrepended.length) toBePrepended.forEach(function (wrapper) {
insertWrapperContent(wrapper);
- wrapper.op = 'none';
+ wrapper.op = OPERATIONS.NONE;
});
buffer.forEach(function (item, i) {
return item.scope.$index = buffer.first + i;
diff --git a/dist/ui-scroll.js.map b/dist/ui-scroll.js.map
index bbe8e4b..e7ab38f 100644
--- a/dist/ui-scroll.js.map
+++ b/dist/ui-scroll.js.map
@@ -1 +1 @@
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1);\n","/*!\r\n globals: angular, window\r\n List of used element methods available in JQuery but not in JQuery Lite\r\n element.before(elem)\r\n element.height()\r\n element.outerHeight(true)\r\n element.height(value) = only for Top/Bottom padding elements\r\n element.scrollTop()\r\n element.scrollTop(value)\r\n */\r\n\r\nexport default class JQLiteExtras {\r\n\r\n registerFor(element) {\r\n let convertToPx, css, getStyle, isWindow;\r\n // angular implementation blows up if elem is the window\r\n css = angular.element.prototype.css;\r\n\r\n element.prototype.css = function (name, value) {\r\n let self = this;\r\n let elem = self[0];\r\n if (!(!elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style)) {\r\n return css.call(self, name, value);\r\n }\r\n };\r\n\r\n // as defined in angularjs v1.0.5\r\n isWindow = (obj) => obj && obj.document && obj.location && obj.alert && obj.setInterval;\r\n\r\n function scrollTo(self, direction, value) {\r\n let elem = self[0];\r\n let [method, prop, preserve] = {\r\n top: [\r\n 'scrollTop',\r\n 'pageYOffset',\r\n 'scrollLeft'\r\n ],\r\n left: [\r\n 'scrollLeft',\r\n 'pageXOffset',\r\n 'scrollTop'\r\n ]\r\n }[direction];\r\n\r\n const isValueDefined = typeof value !== 'undefined';\r\n if (isWindow(elem)) {\r\n if (isValueDefined) {\r\n return elem.scrollTo(self[preserve].call(self), value);\r\n }\r\n return (prop in elem) ? elem[prop] : elem.document.documentElement[method];\r\n } else {\r\n if (isValueDefined) {\r\n elem[method] = value;\r\n }\r\n return elem[method];\r\n }\r\n }\r\n\r\n if (window.getComputedStyle) {\r\n getStyle = (elem) => window.getComputedStyle(elem, null);\r\n convertToPx = (elem, value) => parseFloat(value);\r\n } else {\r\n getStyle = (elem) => elem.currentStyle;\r\n convertToPx = (elem, value) => {\r\n let left, result, rs, rsLeft, style;\r\n let core_pnum = /[+-]?(?:\\d*\\.|)\\d+(?:[eE][+-]?\\d+|)/.source;\r\n let rnumnonpx = new RegExp('^(' + core_pnum + ')(?!px)[a-z%]+$', 'i');\r\n\r\n if (!rnumnonpx.test(value)) {\r\n return parseFloat(value);\r\n }\r\n\r\n // ported from JQuery\r\n style = elem.style;\r\n left = style.left;\r\n rs = elem.runtimeStyle;\r\n rsLeft = rs && rs.left;\r\n if (rs) {\r\n rs.left = style.left;\r\n }\r\n // put in the new values to get a computed style out\r\n style.left = value;\r\n result = style.pixelLeft;\r\n style.left = left;\r\n if (rsLeft) {\r\n rs.left = rsLeft;\r\n }\r\n return result;\r\n };\r\n }\r\n\r\n function getMeasurements(elem, measure) {\r\n let base, borderA, borderB, computedMarginA, computedMarginB, computedStyle, dirA, dirB, marginA, marginB, paddingA, paddingB;\r\n\r\n if (isWindow(elem)) {\r\n base = document.documentElement[{height: 'clientHeight', width: 'clientWidth'}[measure]];\r\n\r\n return {\r\n base: base,\r\n padding: 0,\r\n border: 0,\r\n margin: 0\r\n };\r\n }\r\n\r\n // Start with offset property\r\n [\r\n base,\r\n dirA,\r\n dirB\r\n ] = {\r\n width: [\r\n elem.offsetWidth,\r\n 'Left',\r\n 'Right'\r\n ],\r\n height: [\r\n elem.offsetHeight,\r\n 'Top',\r\n 'Bottom'\r\n ]\r\n }[measure];\r\n\r\n computedStyle = getStyle(elem);\r\n paddingA = convertToPx(elem, computedStyle['padding' + dirA]) || 0;\r\n paddingB = convertToPx(elem, computedStyle['padding' + dirB]) || 0;\r\n borderA = convertToPx(elem, computedStyle['border' + dirA + 'Width']) || 0;\r\n borderB = convertToPx(elem, computedStyle['border' + dirB + 'Width']) || 0;\r\n computedMarginA = computedStyle['margin' + dirA];\r\n computedMarginB = computedStyle['margin' + dirB];\r\n\r\n // I do not care for width for now, so this hack is irrelevant\r\n // if ( !supportsPercentMargin )\r\n // computedMarginA = hackPercentMargin( elem, computedStyle, computedMarginA )\r\n // computedMarginB = hackPercentMargin( elem, computedStyle, computedMarginB )\r\n marginA = convertToPx(elem, computedMarginA) || 0;\r\n marginB = convertToPx(elem, computedMarginB) || 0;\r\n\r\n return {\r\n base: base,\r\n padding: paddingA + paddingB,\r\n border: borderA + borderB,\r\n margin: marginA + marginB\r\n };\r\n }\r\n\r\n function getWidthHeight(elem, direction, measure) {\r\n let computedStyle, result;\r\n\r\n let measurements = getMeasurements(elem, direction);\r\n\r\n if (measurements.base > 0) {\r\n return {\r\n base: measurements.base - measurements.padding - measurements.border,\r\n outer: measurements.base,\r\n outerfull: measurements.base + measurements.margin\r\n }[measure];\r\n }\r\n\r\n // Fall back to computed then uncomputed css if necessary\r\n computedStyle = getStyle(elem);\r\n result = computedStyle[direction];\r\n\r\n if (result < 0 || result === null) {\r\n result = elem.style[direction] || 0;\r\n }\r\n\r\n // Normalize \"\", auto, and prepare for extra\r\n result = parseFloat(result) || 0;\r\n\r\n return {\r\n base: result - measurements.padding - measurements.border,\r\n outer: result,\r\n outerfull: result + measurements.padding + measurements.border + measurements.margin\r\n }[measure];\r\n }\r\n\r\n // define missing methods\r\n return angular.forEach({\r\n before(newElem) {\r\n var children, elem, i, j, parent, ref, self;\r\n self = this;\r\n elem = self[0];\r\n parent = self.parent();\r\n children = parent.contents();\r\n if (children[0] === elem) {\r\n return parent.prepend(newElem);\r\n } else {\r\n for (i = j = 1, ref = children.length - 1; 1 <= ref ? j <= ref : j >= ref; i = 1 <= ref ? ++j : --j) {\r\n if (children[i] === elem) {\r\n angular.element(children[i - 1]).after(newElem);\r\n return;\r\n }\r\n }\r\n throw new Error('invalid DOM structure ' + elem.outerHTML);\r\n }\r\n },\r\n height (value){\r\n var self;\r\n self = this;\r\n if (typeof value !== 'undefined') {\r\n if (angular.isNumber(value)) {\r\n value = value + 'px';\r\n }\r\n return css.call(self, 'height', value);\r\n } else {\r\n return getWidthHeight(this[0], 'height', 'base');\r\n }\r\n },\r\n outerHeight(option) {\r\n return getWidthHeight(this[0], 'height', option ? 'outerfull' : 'outer');\r\n },\r\n outerWidth(option) {\r\n return getWidthHeight(this[0], 'width', option ? 'outerfull' : 'outer');\r\n },\r\n\r\n /*\r\n The offset setter method is not implemented\r\n */\r\n offset(value) {\r\n let docElem, win;\r\n let self = this;\r\n let box = {\r\n top: 0,\r\n left: 0\r\n };\r\n let elem = self[0];\r\n let doc = elem && elem.ownerDocument;\r\n\r\n if (arguments.length) {\r\n if (value === undefined) {\r\n return self;\r\n }\r\n // TODO: implement setter\r\n throw new Error('offset setter method is not implemented');\r\n }\r\n\r\n if (!doc) {\r\n return;\r\n }\r\n\r\n docElem = doc.documentElement;\r\n\r\n // TODO: Make sure it's not a disconnected DOM node\r\n\r\n if (elem.getBoundingClientRect != null) {\r\n box = elem.getBoundingClientRect();\r\n }\r\n\r\n win = doc.defaultView || doc.parentWindow;\r\n\r\n return {\r\n top: box.top + (win.pageYOffset || docElem.scrollTop) - (docElem.clientTop || 0),\r\n left: box.left + (win.pageXOffset || docElem.scrollLeft) - (docElem.clientLeft || 0)\r\n };\r\n },\r\n scrollTop(value) {\r\n return scrollTo(this, 'top', value);\r\n },\r\n scrollLeft(value) {\r\n return scrollTo(this, 'left', value);\r\n }\r\n }, (value, key) => {\r\n if (!element.prototype[key]) {\r\n return element.prototype[key] = value;\r\n }\r\n });\r\n }\r\n\r\n}\r\n","const hideClassToken = 'ng-ui-scroll-hide';\r\n\r\nexport default class ElementRoutines {\r\n\r\n static addCSSRules() {\r\n const selector = '.' + hideClassToken;\r\n const rules = 'display: none';\r\n const sheet = document.styleSheets[0];\r\n let index;\r\n try {\r\n index = sheet.cssRules.length;\r\n } catch (err) {\r\n index = 0;\r\n }\r\n if('insertRule' in sheet) {\r\n sheet.insertRule(selector + '{' + rules + '}', index);\r\n }\r\n else if('addRule' in sheet) {\r\n sheet.addRule(selector, rules, index);\r\n }\r\n }\r\n\r\n constructor($injector, $q) {\r\n this.$animate = ($injector.has && $injector.has('$animate')) ? $injector.get('$animate') : null;\r\n this.isAngularVersionLessThen1_3 = angular.version.major === 1 && angular.version.minor < 3;\r\n this.$q = $q;\r\n }\r\n\r\n hideElement(wrapper) {\r\n wrapper.element.addClass(hideClassToken);\r\n }\r\n\r\n showElement(wrapper) {\r\n wrapper.element.removeClass(hideClassToken);\r\n }\r\n\r\n insertElement(newElement, previousElement) {\r\n previousElement.after(newElement);\r\n return [];\r\n }\r\n\r\n removeElement(wrapper) {\r\n wrapper.element.remove();\r\n wrapper.scope.$destroy();\r\n return [];\r\n }\r\n\r\n insertElementAnimated(newElement, previousElement) {\r\n if (!this.$animate) {\r\n return this.insertElement(newElement, previousElement);\r\n }\r\n\r\n if (this.isAngularVersionLessThen1_3) {\r\n const deferred = this.$q.defer();\r\n // no need for parent - previous element is never null\r\n this.$animate.enter(newElement, null, previousElement, () => deferred.resolve());\r\n\r\n return [deferred.promise];\r\n }\r\n\r\n // no need for parent - previous element is never null\r\n return [this.$animate.enter(newElement, null, previousElement)];\r\n }\r\n\r\n removeElementAnimated(wrapper) {\r\n if (!this.$animate) {\r\n return this.removeElement(wrapper);\r\n }\r\n\r\n if (this.isAngularVersionLessThen1_3) {\r\n const deferred = this.$q.defer();\r\n this.$animate.leave(wrapper.element, () => {\r\n wrapper.scope.$destroy();\r\n return deferred.resolve();\r\n });\r\n\r\n return [deferred.promise];\r\n }\r\n\r\n return [(this.$animate.leave(wrapper.element)).then(() => wrapper.scope.$destroy())];\r\n }\r\n}","export default function ScrollBuffer(elementRoutines, bufferSize, startIndex) {\r\n const buffer = Object.create(Array.prototype);\r\n\r\n angular.extend(buffer, {\r\n size: bufferSize,\r\n\r\n reset(startIndex) {\r\n buffer.remove(0, buffer.length);\r\n buffer.eof = false;\r\n buffer.bof = false;\r\n buffer.first = startIndex;\r\n buffer.next = startIndex;\r\n buffer.minIndex = startIndex;\r\n buffer.maxIndex = startIndex;\r\n buffer.minIndexUser = null;\r\n buffer.maxIndexUser = null;\r\n },\r\n\r\n append(items) {\r\n items.forEach((item) => {\r\n ++buffer.next;\r\n buffer.insert('append', item);\r\n });\r\n buffer.maxIndex = buffer.eof ? buffer.next - 1 : Math.max(buffer.next - 1, buffer.maxIndex);\r\n },\r\n\r\n prepend(items, immutableTop) {\r\n items.reverse().forEach((item) => {\r\n if (immutableTop) {\r\n ++buffer.next;\r\n }\r\n else {\r\n --buffer.first;\r\n }\r\n buffer.insert('prepend', item);\r\n });\r\n buffer.minIndex = buffer.bof ? buffer.minIndex = buffer.first : Math.min(buffer.first, buffer.minIndex);\r\n },\r\n\r\n /**\r\n * inserts wrapped element in the buffer\r\n * the first argument is either operation keyword (see below) or a number for operation 'insert'\r\n * for insert the number is the index for the buffer element the new one have to be inserted after\r\n * operations: 'append', 'prepend', 'insert', 'remove', 'update', 'none'\r\n */\r\n insert(operation, item, isTop) {\r\n const wrapper = {\r\n item: item\r\n };\r\n\r\n if (operation % 1 === 0) {// it is an insert\r\n wrapper.op = 'insert';\r\n buffer.splice(operation, 0, wrapper);\r\n if(isTop) {\r\n buffer.first--;\r\n }\r\n else {\r\n buffer.next++;\r\n }\r\n } else {\r\n wrapper.op = operation;\r\n switch (operation) {\r\n case 'append':\r\n buffer.push(wrapper);\r\n break;\r\n case 'prepend':\r\n buffer.unshift(wrapper);\r\n break;\r\n }\r\n }\r\n },\r\n\r\n // removes elements from buffer\r\n remove(arg1, arg2) {\r\n if (angular.isNumber(arg1)) {\r\n // removes items from arg1 (including) through arg2 (excluding)\r\n for (let i = arg1; i < arg2; i++) {\r\n elementRoutines.removeElement(buffer[i]);\r\n }\r\n return buffer.splice(arg1, arg2 - arg1);\r\n }\r\n // removes single item(wrapper) from the buffer\r\n buffer.splice(buffer.indexOf(arg1), 1);\r\n if(arg1._op === 'isTop' && buffer.first === this.getAbsMinIndex()) {\r\n this.incrementMinIndex();\r\n }\r\n else {\r\n this.decrementMaxIndex();\r\n }\r\n if(arg1._op === 'isTop') {\r\n buffer.first++;\r\n }\r\n else {\r\n buffer.next--;\r\n }\r\n if(!buffer.length) {\r\n buffer.first = 1;\r\n buffer.next = 1;\r\n }\r\n\r\n return elementRoutines.removeElementAnimated(arg1);\r\n },\r\n\r\n incrementMinIndex() {\r\n if(buffer.minIndexUser !== null) {\r\n if(buffer.minIndex > buffer.minIndexUser) {\r\n buffer.minIndexUser++;\r\n return;\r\n }\r\n if(buffer.minIndex === buffer.minIndexUser) {\r\n buffer.minIndexUser++;\r\n }\r\n }\r\n buffer.minIndex++;\r\n },\r\n\r\n decrementMaxIndex() {\r\n if(buffer.maxIndexUser !== null && buffer.maxIndex <= buffer.maxIndexUser) {\r\n buffer.maxIndexUser--;\r\n }\r\n buffer.maxIndex--;\r\n },\r\n\r\n getAbsMinIndex() {\r\n if(buffer.minIndexUser !== null) {\r\n return Math.min(buffer.minIndexUser, buffer.minIndex);\r\n }\r\n return buffer.minIndex;\r\n },\r\n\r\n getAbsMaxIndex() {\r\n if(buffer.maxIndexUser !== null) {\r\n return Math.max(buffer.maxIndexUser, buffer.maxIndex);\r\n }\r\n return buffer.maxIndex;\r\n },\r\n\r\n effectiveHeight(elements) {\r\n if (!elements.length) {\r\n return 0;\r\n }\r\n let top = Number.MAX_VALUE;\r\n let bottom = Number.NEGATIVE_INFINITY;\r\n elements.forEach((wrapper) => {\r\n if (wrapper.element[0].offsetParent) {\r\n // element style is not display:none\r\n top = Math.min(top, wrapper.element.offset().top);\r\n bottom = Math.max(bottom, wrapper.element.offset().top + wrapper.element.outerHeight(true));\r\n }\r\n });\r\n return Math.max(0, bottom - top);\r\n },\r\n\r\n getItems() {\r\n return buffer.filter(item => item.op === 'none');\r\n },\r\n\r\n getFirstItem() {\r\n const list = buffer.getItems();\r\n if (!list.length) {\r\n return null;\r\n }\r\n return list[0].item;\r\n },\r\n\r\n getLastItem() {\r\n const list = buffer.getItems();\r\n if (!list.length) {\r\n return null;\r\n }\r\n return list[list.length - 1].item;\r\n }\r\n\r\n });\r\n\r\n buffer.reset(startIndex);\r\n\r\n return buffer;\r\n}\r\n","// Can't just extend the Array, due to Babel does not support built-in classes extending\r\n// This solution was taken from https://stackoverflow.com/questions/46897414/es6-class-extends-array-workaround-for-es5-babel-transpile\r\nclass CacheProto {\r\n add(item) {\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index === item.scope.$index) {\r\n this[i].height = item.element.outerHeight();\r\n return;\r\n }\r\n }\r\n this.push({\r\n index: item.scope.$index,\r\n height: item.element.outerHeight()\r\n });\r\n this.sort((a, b) => ((a.index < b.index) ? -1 : ((a.index > b.index) ? 1 : 0)));\r\n }\r\n\r\n remove(argument, _isTop) {\r\n const index = argument % 1 === 0 ? argument : argument.scope.$index;\r\n const isTop = argument % 1 === 0 ? _isTop : argument._op === 'isTop';\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index === index) {\r\n this.splice(i, 1);\r\n break;\r\n }\r\n }\r\n if(!isTop) {\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index > index) {\r\n this[i].index--;\r\n }\r\n }\r\n }\r\n }\r\n\r\n clear() {\r\n this.length = 0;\r\n }\r\n}\r\n\r\nfunction Cache() {\r\n const instance = [];\r\n instance.push.apply(instance, arguments);\r\n Object.setPrototypeOf(instance, Cache.prototype);\r\n return instance;\r\n}\r\nCache.prototype = Object.create(Array.prototype);\r\nObject.getOwnPropertyNames(CacheProto.prototype).forEach(methodName =>\r\n Cache.prototype[methodName] = CacheProto.prototype[methodName]\r\n);\r\n\r\nfunction generateElement(template) {\r\n if(template.nodeType !== Node.ELEMENT_NODE) {\r\n throw new Error('ui-scroll directive requires an Element node for templating the view');\r\n }\r\n let element;\r\n switch (template.tagName.toLowerCase()) {\r\n case 'dl':\r\n throw new Error(`ui-scroll directive does not support <${template.tagName}> as a repeating tag: ${template.outerHTML}`);\r\n case 'tr':\r\n let table = angular.element('');\r\n element = table.find('tr');\r\n break;\r\n case 'li':\r\n element = angular.element('');\r\n break;\r\n default:\r\n element = angular.element('');\r\n }\r\n return element;\r\n}\r\n\r\nclass Padding {\r\n constructor(template) {\r\n this.element = generateElement(template);\r\n this.cache = new Cache();\r\n }\r\n\r\n height() {\r\n return this.element.height.apply(this.element, arguments);\r\n }\r\n}\r\n\r\nexport default Padding;","import Padding from './padding';\r\n\r\nexport default function Viewport(elementRoutines, buffer, element, viewportController, $rootScope, padding) {\r\n let topPadding = null;\r\n let bottomPadding = null;\r\n const viewport = viewportController && viewportController.viewport ? viewportController.viewport : angular.element(window);\r\n const container = viewportController && viewportController.container ? viewportController.container : undefined;\r\n const scope = viewportController && viewportController.scope ? viewportController.scope : $rootScope;\r\n\r\n viewport.css({\r\n 'overflow-anchor': 'none',\r\n 'overflow-y': 'auto',\r\n 'display': 'block'\r\n });\r\n\r\n function bufferPadding() {\r\n return viewport.outerHeight() * padding; // some extra space to initiate preload\r\n }\r\n\r\n angular.extend(viewport, {\r\n getScope() {\r\n return scope;\r\n },\r\n\r\n createPaddingElements(template) {\r\n topPadding = new Padding(template);\r\n bottomPadding = new Padding(template);\r\n element.before(topPadding.element);\r\n element.after(bottomPadding.element);\r\n topPadding.height(0);\r\n bottomPadding.height(0);\r\n },\r\n\r\n applyContainerStyle() {\r\n if (!container) {\r\n return true;\r\n }\r\n if(container !== viewport) {\r\n viewport.css('height', window.getComputedStyle(container[0]).height);\r\n }\r\n return viewport.height() > 0;\r\n },\r\n\r\n bottomDataPos() {\r\n let scrollHeight = viewport[0].scrollHeight;\r\n scrollHeight = scrollHeight != null ? scrollHeight : viewport[0].document.documentElement.scrollHeight;\r\n return scrollHeight - bottomPadding.height();\r\n },\r\n\r\n topDataPos() {\r\n return topPadding.height();\r\n },\r\n\r\n bottomVisiblePos() {\r\n return viewport.scrollTop() + viewport.outerHeight();\r\n },\r\n\r\n topVisiblePos() {\r\n return viewport.scrollTop();\r\n },\r\n\r\n insertElement(e, sibling) {\r\n return elementRoutines.insertElement(e, sibling || topPadding.element);\r\n },\r\n\r\n insertElementAnimated(e, sibling) {\r\n return elementRoutines.insertElementAnimated(e, sibling || topPadding.element);\r\n },\r\n\r\n shouldLoadBottom() {\r\n return !buffer.eof && viewport.bottomDataPos() < viewport.bottomVisiblePos() + bufferPadding();\r\n },\r\n\r\n clipBottom() {\r\n // clip the invisible items off the bottom\r\n let overage = 0;\r\n let overageHeight = 0;\r\n let itemHeight = 0;\r\n let emptySpaceHeight = viewport.bottomDataPos() - viewport.bottomVisiblePos() - bufferPadding();\r\n\r\n for (let i = buffer.length - 1; i >= 0; i--) {\r\n itemHeight = buffer[i].element.outerHeight(true);\r\n if (overageHeight + itemHeight > emptySpaceHeight) {\r\n break;\r\n }\r\n bottomPadding.cache.add(buffer[i]);\r\n overageHeight += itemHeight;\r\n overage++;\r\n }\r\n\r\n if (overage > 0) {\r\n buffer.eof = false;\r\n buffer.remove(buffer.length - overage, buffer.length);\r\n buffer.next -= overage;\r\n viewport.adjustPaddings();\r\n }\r\n },\r\n\r\n shouldLoadTop() {\r\n return !buffer.bof && (viewport.topDataPos() > viewport.topVisiblePos() - bufferPadding());\r\n },\r\n\r\n clipTop() {\r\n // clip the invisible items off the top\r\n let overage = 0;\r\n let overageHeight = 0;\r\n let itemHeight = 0;\r\n let emptySpaceHeight = viewport.topVisiblePos() - viewport.topDataPos() - bufferPadding();\r\n\r\n for (let i = 0; i < buffer.length; i++) {\r\n itemHeight = buffer[i].element.outerHeight(true);\r\n if (overageHeight + itemHeight > emptySpaceHeight) {\r\n break;\r\n }\r\n topPadding.cache.add(buffer[i]);\r\n overageHeight += itemHeight;\r\n overage++;\r\n }\r\n\r\n if (overage > 0) {\r\n // we need to adjust top padding element before items are removed from top\r\n // to avoid strange behaviour of scroll bar during remove top items when we are at the very bottom\r\n topPadding.height(topPadding.height() + overageHeight);\r\n buffer.bof = false;\r\n buffer.remove(0, overage);\r\n buffer.first += overage;\r\n }\r\n },\r\n\r\n adjustPaddings() {\r\n if (!buffer.length) {\r\n return;\r\n }\r\n\r\n // precise heights calculation based on items that are in buffer or that were in buffer once\r\n const visibleItemsHeight = buffer.reduce((summ, item) => summ + item.element.outerHeight(true), 0);\r\n\r\n let topPaddingHeight = 0, topCount = 0;\r\n topPadding.cache.forEach(item => {\r\n if(item.index < buffer.first) {\r\n topPaddingHeight += item.height;\r\n topCount++;\r\n }\r\n });\r\n\r\n let bottomPaddingHeight = 0, bottomCount = 0;\r\n bottomPadding.cache.forEach(item => {\r\n if(item.index >= buffer.next) {\r\n bottomPaddingHeight += item.height;\r\n bottomCount++;\r\n }\r\n });\r\n\r\n const totalHeight = visibleItemsHeight + topPaddingHeight + bottomPaddingHeight;\r\n const averageItemHeight = totalHeight / (topCount + bottomCount + buffer.length);\r\n\r\n // average heights calculation, items that have never been reached\r\n let adjustTopPadding = buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser;\r\n let adjustBottomPadding = buffer.maxIndexUser !== null && buffer.maxIndex < buffer.maxIndexUser;\r\n let topPaddingHeightAdd = adjustTopPadding ? (buffer.minIndex - buffer.minIndexUser) * averageItemHeight : 0;\r\n let bottomPaddingHeightAdd = adjustBottomPadding ? (buffer.maxIndexUser - buffer.maxIndex) * averageItemHeight : 0;\r\n\r\n // paddings combine adjustment\r\n topPadding.height(topPaddingHeight + topPaddingHeightAdd);\r\n bottomPadding.height(bottomPaddingHeight + bottomPaddingHeightAdd);\r\n },\r\n\r\n onAfterMinIndexSet(topPaddingHeightOld) {\r\n // additional scrollTop adjustment in case of datasource.minIndex external set\r\n if (buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser) {\r\n let diff = topPadding.height() - topPaddingHeightOld;\r\n viewport.scrollTop(viewport.scrollTop() + diff);\r\n while((diff -= viewport.scrollTop()) > 0) {\r\n bottomPadding.height(bottomPadding.height() + diff);\r\n viewport.scrollTop(viewport.scrollTop() + diff);\r\n }\r\n }\r\n },\r\n\r\n onAfterPrepend(updates) {\r\n if (!updates.prepended.length) {\r\n return;\r\n }\r\n const height = buffer.effectiveHeight(updates.prepended);\r\n const paddingHeight = topPadding.height() - height;\r\n if (paddingHeight >= 0) {\r\n topPadding.height(paddingHeight);\r\n return;\r\n }\r\n const position = viewport.scrollTop();\r\n const newPosition = position - paddingHeight;\r\n viewport.synthetic = { previous: position, next: newPosition };\r\n topPadding.height(0);\r\n viewport.scrollTop(newPosition);\r\n },\r\n\r\n resetTopPadding() {\r\n topPadding.height(0);\r\n topPadding.cache.clear();\r\n },\r\n\r\n resetBottomPadding() {\r\n bottomPadding.height(0);\r\n bottomPadding.cache.clear();\r\n },\r\n\r\n removeCacheItem(item, isTop) {\r\n topPadding.cache.remove(item, isTop);\r\n bottomPadding.cache.remove(item, isTop);\r\n },\r\n\r\n removeItem(item) {\r\n this.removeCacheItem(item);\r\n return buffer.remove(item);\r\n }\r\n });\r\n\r\n return viewport;\r\n}\r\n","class Adapter {\r\n\r\n constructor($scope, $parse, $attr, viewport, buffer, doAdjust, reload) {\r\n this.$parse = $parse;\r\n this.$attr = $attr;\r\n this.viewport = viewport;\r\n this.buffer = buffer;\r\n\r\n this.doAdjust = doAdjust;\r\n this.reload = reload;\r\n\r\n this.isLoading = false;\r\n this.disabled = false;\r\n\r\n const viewportScope = viewport.getScope();\r\n this.startScope = viewportScope.$parent ? viewportScope : $scope;\r\n\r\n this.publicContext = {};\r\n this.assignAdapter($attr.adapter);\r\n this.generatePublicContext();\r\n }\r\n\r\n assignAdapter(adapterAttr) {\r\n if (!adapterAttr || !(adapterAttr = adapterAttr.replace(/^\\s+|\\s+$/gm, ''))) {\r\n return;\r\n }\r\n let adapterOnScope;\r\n\r\n try {\r\n this.$parse(adapterAttr).assign(this.startScope, {});\r\n adapterOnScope = this.$parse(adapterAttr)(this.startScope);\r\n }\r\n catch (error) {\r\n error.message = `Angular ui-scroll Adapter assignment exception.\\n` +\r\n `Can't parse \"${adapterAttr}\" expression.\\n` +\r\n error.message;\r\n throw error;\r\n }\r\n\r\n angular.extend(adapterOnScope, this.publicContext);\r\n this.publicContext = adapterOnScope;\r\n }\r\n\r\n generatePublicContext() {\r\n // these methods will be accessible out of ui-scroll via user defined adapter\r\n const publicMethods = ['reload', 'applyUpdates', 'append', 'prepend', 'isBOF', 'isEOF', 'isEmpty'];\r\n for (let i = publicMethods.length - 1; i >= 0; i--) {\r\n this.publicContext[publicMethods[i]] = this[publicMethods[i]].bind(this);\r\n }\r\n\r\n // these read-only props will be accessible out of ui-scroll via user defined adapter\r\n const publicProps = ['isLoading', 'topVisible', 'topVisibleElement', 'topVisibleScope', 'bottomVisible', 'bottomVisibleElement', 'bottomVisibleScope'];\r\n for (let i = publicProps.length - 1; i >= 0; i--) {\r\n let property, attr = this.$attr[publicProps[i]];\r\n Object.defineProperty(this, publicProps[i], {\r\n get: () => property,\r\n set: (value) => {\r\n property = value;\r\n this.publicContext[publicProps[i]] = value;\r\n if (attr) {\r\n this.$parse(attr).assign(this.startScope, value);\r\n }\r\n }\r\n });\r\n }\r\n\r\n // read-only immediately calculated public properties\r\n const publicPropsImmediate = ['bufferFirst', 'bufferLast', 'bufferLength'];\r\n for (let i = publicPropsImmediate.length - 1; i >= 0; i--) {\r\n Object.defineProperty(this.publicContext, publicPropsImmediate[i], {\r\n get: () => this[publicPropsImmediate[i]]\r\n });\r\n }\r\n\r\n // non-read-only public property\r\n Object.defineProperty(this.publicContext, 'disabled', {\r\n get: () => this.disabled,\r\n set: (value) => (!(this.disabled = value)) ? this.doAdjust() : null\r\n });\r\n }\r\n\r\n loading(value) {\r\n this.isLoading = value;\r\n }\r\n\r\n isBOF() {\r\n return this.buffer.bof;\r\n }\r\n\r\n isEOF() {\r\n return this.buffer.eof;\r\n }\r\n\r\n isEmpty() {\r\n return !this.buffer.length;\r\n }\r\n\r\n get bufferLength() {\r\n return this.buffer.getItems().length;\r\n }\r\n\r\n get bufferFirst() {\r\n return this.buffer.getFirstItem();\r\n }\r\n\r\n get bufferLast() {\r\n return this.buffer.getLastItem();\r\n }\r\n\r\n append(newItems) {\r\n this.buffer.append(newItems);\r\n this.doAdjust();\r\n this.viewport.clipTop();\r\n this.viewport.clipBottom();\r\n }\r\n\r\n prepend(newItems, options = {}) {\r\n this.buffer.prepend(newItems, options.immutableTop);\r\n this.doAdjust();\r\n this.viewport.clipTop();\r\n this.viewport.clipBottom();\r\n }\r\n\r\n applyUpdates(arg1, arg2, arg3) {\r\n if (typeof arg1 === 'function') {\r\n this.applyUpdatesFunc(arg1, arg2);\r\n } else {\r\n this.applyUpdatesIndex(arg1, arg2, arg3);\r\n }\r\n this.doAdjust();\r\n }\r\n\r\n applyUpdatesFunc(cb, options = {}) {\r\n this.buffer.slice(0).forEach((wrapper) => {\r\n // we need to do it on the buffer clone, because buffer content\r\n // may change as we iterate through\r\n this.applyUpdate(wrapper, cb(wrapper.item, wrapper.scope, wrapper.element), options);\r\n });\r\n }\r\n\r\n applyUpdatesIndex(index, newItems, options = {}) {\r\n if (index % 1 !== 0) {\r\n throw new Error('applyUpdates - ' + index + ' is not a valid index (should be an integer)');\r\n }\r\n const _index = index - this.buffer.first;\r\n\r\n // apply updates only within buffer\r\n if (_index >= 0 && _index < this.buffer.length) {\r\n this.applyUpdate(this.buffer[_index], newItems, options);\r\n }\r\n // out-of-buffer case: deletion may affect Paddings\r\n else if(index >= this.buffer.getAbsMinIndex() && index <= this.buffer.getAbsMaxIndex()) {\r\n if(angular.isArray(newItems) && !newItems.length) {\r\n this.viewport.removeCacheItem(index, !options.immutableTop && index === this.buffer.minIndex);\r\n if (!options.immutableTop && index === this.buffer.getAbsMinIndex()) {\r\n this.buffer.incrementMinIndex();\r\n }\r\n else {\r\n this.buffer.decrementMaxIndex();\r\n }\r\n }\r\n }\r\n }\r\n\r\n applyUpdate(wrapper, newItems, options = {}) {\r\n if (!angular.isArray(newItems)) {\r\n return;\r\n }\r\n let position = this.buffer.indexOf(wrapper);\r\n if (!newItems.reverse().some(newItem => newItem === wrapper.item)) {\r\n wrapper.op = 'remove';\r\n if (!options.immutableTop && position === 0 && !newItems.length) {\r\n wrapper._op = 'isTop'; // to catch \"first\" edge case on remove\r\n }\r\n }\r\n newItems.forEach((newItem) => {\r\n if (newItem === wrapper.item) {\r\n position--;\r\n } else {\r\n // 3 parameter (isTop) is to catch \"first\" edge case on insert\r\n this.buffer.insert(position + 1, newItem, !options.immutableTop && position === -1);\r\n }\r\n });\r\n }\r\n\r\n calculateProperties() {\r\n let rowTop = null, topHeight = 0;\r\n let topDone = false, bottomDone = false;\r\n const length = this.buffer.length;\r\n\r\n for (let i = 0; i < length; i++) {\r\n const item = this.buffer[i];\r\n const itemTop = item.element.offset().top;\r\n\r\n if (rowTop !== itemTop) { // a new row condition\r\n const itemHeight = item.element.outerHeight(true);\r\n const top = this.viewport.topDataPos() + topHeight + itemHeight;\r\n\r\n if (!topDone && top > this.viewport.topVisiblePos()) {\r\n topDone = true;\r\n this['topVisible'] = item.item;\r\n this['topVisibleElement'] = item.element;\r\n this['topVisibleScope'] = item.scope;\r\n }\r\n if (!bottomDone && (top >= this.viewport.bottomVisiblePos() || (i === length - 1 && this.isEOF()))) {\r\n bottomDone = true;\r\n this['bottomVisible'] = item.item;\r\n this['bottomVisibleElement'] = item.element;\r\n this['bottomVisibleScope'] = item.scope;\r\n }\r\n topHeight += itemHeight;\r\n }\r\n rowTop = itemTop;\r\n\r\n if (topDone && bottomDone) {\r\n break;\r\n }\r\n }\r\n }\r\n\r\n}\r\n\r\nexport default Adapter;\r\n","import JQLiteExtras from './modules/jqLiteExtras';\nimport ElementRoutines from './modules/elementRoutines.js';\nimport ScrollBuffer from './modules/buffer.js';\nimport Viewport from './modules/viewport.js';\nimport Adapter from './modules/adapter.js';\n\nangular.module('ui.scroll', [])\n\n .constant('JQLiteExtras', JQLiteExtras)\n .run(['JQLiteExtras', (JQLiteExtras) => {\n const elt = angular.element;\n !(window.jQuery && elt.fn && elt.fn.jquery) ? (new JQLiteExtras()).registerFor(elt) : null;\n ElementRoutines.addCSSRules();\n }])\n\n .directive('uiScrollViewport', function () {\n return {\n restrict: 'A',\n controller: [\n '$scope',\n '$element',\n function (scope, element) {\n this.container = element;\n this.viewport = element;\n this.scope = scope;\n\n angular.forEach(element.children(), child => {\n if (child.tagName.toLowerCase() === 'tbody') {\n this.viewport = angular.element(child);\n }\n });\n\n return this;\n }\n ]\n };\n })\n\n .directive('uiScroll', [\n '$log',\n '$injector',\n '$rootScope',\n '$timeout',\n '$interval',\n '$q',\n '$parse',\n function (console, $injector, $rootScope, $timeout, $interval, $q, $parse) {\n\n return {\n require: ['?^uiScrollViewport'],\n restrict: 'A',\n transclude: 'element',\n priority: 1000,\n terminal: true,\n link: link\n };\n\n function link($scope, element, $attr, controllers, linker) {\n const match = $attr.uiScroll.match(/^\\s*(\\w+)\\s+in\\s+([(\\w|\\$)\\.]+)\\s*$/);\n if (!match) {\n throw new Error('Expected uiScroll in form of \\'_item_ in _datasource_\\' but got \\'' + $attr.uiScroll + '\\'');\n }\n\n function parseNumber(value, defaultValue, isFloat) {\n if (!isFloat) {\n value = value === null ? defaultValue : Math.floor(value);\n }\n return isNaN(value) ? defaultValue : value;\n }\n\n function parseNumericAttr(value, defaultValue, isFloat) {\n const result = $parse(value)($scope);\n return parseNumber(result, defaultValue, isFloat);\n }\n\n function parseBooleanAttr(value, defaultValue) {\n const result = $parse(value)($scope);\n return typeof result === 'boolean' ? result : defaultValue;\n }\n\n const BUFFER_MIN = 3;\n const BUFFER_DEFAULT = 10;\n const PADDING_MIN = 0.3;\n const PADDING_DEFAULT = 0.5;\n const HANDLE_INERTIA_DEFAULT = true;\n const START_INDEX_DEFAULT = 1;\n const MAX_VIEWPORT_DELAY = 500;\n const VIEWPORT_POLLING_INTERVAL = 50;\n\n let datasource = null;\n const itemName = match[1];\n const datasourceName = match[2];\n const viewportController = controllers[0];\n const bufferSize = Math.max(BUFFER_MIN, parseNumericAttr($attr.bufferSize, BUFFER_DEFAULT));\n const padding = Math.max(PADDING_MIN, parseNumericAttr($attr.padding, PADDING_DEFAULT, true));\n const handleInertia = parseBooleanAttr($attr.handleInertia, HANDLE_INERTIA_DEFAULT);\n let startIndex = parseNumericAttr($attr.startIndex, START_INDEX_DEFAULT);\n let ridActual = 0; // current data revision id\n let pending = [];\n\n const elementRoutines = new ElementRoutines($injector, $q);\n const buffer = new ScrollBuffer(elementRoutines, bufferSize, startIndex);\n const viewport = new Viewport(elementRoutines, buffer, element, viewportController, $rootScope, padding);\n const adapter = new Adapter($scope, $parse, $attr, viewport, buffer, doAdjust, reload);\n\n if (viewportController) {\n viewportController.adapter = adapter;\n }\n\n const isDatasourceValid = () =>\n Object.prototype.toString.call(datasource) === '[object Object]' && typeof datasource.get === 'function';\n\n datasource = $parse(datasourceName)($scope); // try to get datasource on scope\n if (!isDatasourceValid()) {\n datasource = $injector.get(datasourceName); // try to inject datasource as service\n if (!isDatasourceValid()) {\n throw new Error(datasourceName + ' is not a valid datasource');\n }\n }\n\n let onRenderHandlers = [];\n function onRenderHandlersRunner() {\n onRenderHandlers.forEach(handler => handler.run());\n onRenderHandlers = [];\n }\n function persistDatasourceIndex(datasource, propName) {\n let getter;\n // need to postpone min/maxIndexUser processing if the view is empty\n if(angular.isNumber(datasource[propName])) {\n getter = datasource[propName];\n if(angular.isNumber(getter)) {\n onRenderHandlers = onRenderHandlers.filter(handler => handler.id !== propName);\n onRenderHandlers.push({\n id: propName,\n run: () => datasource[propName] = getter\n });\n }\n }\n }\n\n function defineDatasourceIndex(datasource, propName, propUserName) {\n const descriptor = Object.getOwnPropertyDescriptor(datasource, propName);\n if (descriptor && (descriptor.set || descriptor.get)) {\n return;\n }\n let getter;\n persistDatasourceIndex(datasource, propName);\n Object.defineProperty(datasource, propName, {\n set: (value) => {\n getter = value;\n if(pending.length && !buffer.length) {\n persistDatasourceIndex(datasource, propName);\n return;\n }\n buffer[propUserName] = value;\n const topPaddingHeightOld = viewport.topDataPos();\n viewport.adjustPaddings();\n if (propName === 'minIndex') {\n viewport.onAfterMinIndexSet(topPaddingHeightOld);\n }\n },\n get: () => getter\n });\n }\n\n defineDatasourceIndex(datasource, 'minIndex', 'minIndexUser');\n defineDatasourceIndex(datasource, 'maxIndex', 'maxIndexUser');\n\n const fetchNext = (datasource.get.length !== 2) ?\n (success) => datasource.get(buffer.next, bufferSize, success) :\n (success) => {\n datasource.get({\n index: buffer.next,\n append: buffer.length ? buffer[buffer.length - 1].item : void 0,\n count: bufferSize\n }, success);\n };\n\n const fetchPrevious = (datasource.get.length !== 2) ?\n (success) => datasource.get(buffer.first - bufferSize, bufferSize, success) :\n (success) => {\n datasource.get({\n index: buffer.first - bufferSize,\n prepend: buffer.length ? buffer[0].item : void 0,\n count: bufferSize\n }, success);\n };\n\n const initialize = () => {\n let tryCount = 0;\n if(!viewport.applyContainerStyle()) {\n const timer = $interval(() => {\n tryCount++;\n if(viewport.applyContainerStyle()) {\n $interval.cancel(timer);\n doAdjust();\n }\n if(tryCount * VIEWPORT_POLLING_INTERVAL >= MAX_VIEWPORT_DELAY) {\n $interval.cancel(timer);\n throw Error(`ui-scroll directive requires a viewport with non-zero height in ${MAX_VIEWPORT_DELAY}ms`);\n }\n }, VIEWPORT_POLLING_INTERVAL);\n }\n else {\n doAdjust();\n }\n };\n\n /**\n * Build padding elements\n *\n * Calling linker is the only way I found to get access to the tag name of the template\n * to prevent the directive scope from pollution a new scope is created and destroyed\n * right after the builder creation is completed\n */\n linker((clone, scope) => {\n viewport.createPaddingElements(clone[0]);\n // we do not include the clone in the DOM. It means that the nested directives will not\n // be able to reach the parent directives, but in this case it is intentional because we\n // created the clone to access the template tag name\n scope.$destroy();\n clone.remove();\n });\n\n $scope.$on('$destroy', () => {\n unbindEvents();\n viewport.off('mousewheel', wheelHandler);\n });\n\n viewport.on('mousewheel', wheelHandler);\n\n initialize();\n\n /* Private function definitions */\n\n function isInvalid(rid) {\n return (rid && rid !== ridActual) || $scope.$$destroyed;\n }\n\n function bindEvents() {\n viewport.on('resize', resizeAndScrollHandler);\n viewport.on('scroll', resizeAndScrollHandler);\n }\n\n function unbindEvents() {\n viewport.off('resize', resizeAndScrollHandler);\n viewport.off('scroll', resizeAndScrollHandler);\n }\n\n function reload() {\n unbindEvents();\n viewport.resetTopPadding();\n viewport.resetBottomPadding();\n if (arguments.length) {\n startIndex = parseNumber(arguments[0], START_INDEX_DEFAULT, false);\n }\n buffer.reset(startIndex);\n persistDatasourceIndex(datasource, 'minIndex');\n persistDatasourceIndex(datasource, 'maxIndex');\n doAdjust();\n }\n\n function isElementVisible(wrapper) {\n return wrapper.element.height() && wrapper.element[0].offsetParent;\n }\n\n function visibilityWatcher(wrapper) {\n if (isElementVisible(wrapper)) {\n buffer.forEach((item) => {\n if (typeof item.unregisterVisibilityWatcher === 'function') {\n item.unregisterVisibilityWatcher();\n delete item.unregisterVisibilityWatcher;\n }\n });\n if (!pending.length) {\n $timeout(() => doAdjust());\n }\n }\n }\n\n function insertWrapperContent(wrapper, insertAfter) {\n createElement(wrapper, insertAfter, viewport.insertElement);\n if (!isElementVisible(wrapper)) {\n wrapper.unregisterVisibilityWatcher = wrapper.scope.$watch(() => visibilityWatcher(wrapper));\n }\n elementRoutines.hideElement(wrapper); // hide inserted elements before data binding\n }\n\n function createElement(wrapper, insertAfter, insertElement) {\n let promises = null;\n const sibling = (insertAfter > 0) ? buffer[insertAfter - 1].element : undefined;\n linker((clone, scope) => {\n promises = insertElement(clone, sibling);\n wrapper.element = clone;\n wrapper.scope = scope;\n scope[itemName] = wrapper.item;\n });\n // ui-scroll-grid apply\n if (adapter.transform) {\n const tdInitializer = wrapper.scope.uiScrollTdInitializer;\n if (tdInitializer && tdInitializer.linking) {\n adapter.transform(wrapper.scope, wrapper.element);\n } else {\n wrapper.scope.uiScrollTdInitializer = {\n onLink: () => adapter.transform(wrapper.scope, wrapper.element),\n scope: wrapper.scope\n };\n }\n }\n return promises;\n }\n\n function updateDOM() {\n let promises = [];\n const toBePrepended = [];\n const toBeRemoved = [];\n const inserted = [];\n\n buffer.forEach((wrapper, i) => {\n switch (wrapper.op) {\n case 'prepend':\n toBePrepended.unshift(wrapper);\n break;\n case 'append':\n insertWrapperContent(wrapper, i);\n wrapper.op = 'none';\n inserted.push(wrapper);\n break;\n case 'insert':\n promises = promises.concat(createElement(wrapper, i, viewport.insertElementAnimated));\n wrapper.op = 'none';\n inserted.push(wrapper);\n break;\n case 'remove':\n toBeRemoved.push(wrapper);\n }\n });\n\n toBeRemoved.forEach((wrapper) => promises = promises.concat(viewport.removeItem(wrapper)));\n\n if (toBePrepended.length)\n toBePrepended.forEach((wrapper) => {\n insertWrapperContent(wrapper);\n wrapper.op = 'none';\n });\n\n buffer.forEach((item, i) => item.scope.$index = buffer.first + i);\n\n return {\n prepended: toBePrepended,\n removed: toBeRemoved,\n inserted: inserted,\n animated: promises\n };\n\n }\n\n function updatePaddings(rid, updates) {\n // schedule another doAdjust after animation completion\n if (updates.animated.length) {\n $q.all(updates.animated).then(() => {\n viewport.adjustPaddings();\n doAdjust(rid);\n });\n } else {\n viewport.adjustPaddings();\n }\n }\n\n function enqueueFetch(rid, updates) {\n if (viewport.shouldLoadBottom()) {\n if (!updates || buffer.effectiveHeight(updates.inserted) > 0) {\n // this means that at least one item appended in the last batch has height > 0\n if (pending.push(true) === 1) {\n adapter.loading(true);\n fetch(rid);\n }\n }\n } else if (viewport.shouldLoadTop()) {\n if ((!updates || buffer.effectiveHeight(updates.prepended) > 0) || pending[0]) {\n // this means that at least one item appended in the last batch has height > 0\n // pending[0] = true means that previous fetch was appending. 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\t\t__webpack_require__.r(ns);\n \t\tObject.defineProperty(ns, 'default', { enumerable: true, value: value });\n \t\tif(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));\n \t\treturn ns;\n \t};\n\n \t// getDefaultExport function for compatibility with non-harmony modules\n \t__webpack_require__.n = function(module) {\n \t\tvar getter = module && module.__esModule ?\n \t\t\tfunction getDefault() { return module['default']; } :\n \t\t\tfunction getModuleExports() { return module; };\n \t\t__webpack_require__.d(getter, 'a', getter);\n \t\treturn getter;\n \t};\n\n \t// Object.prototype.hasOwnProperty.call\n \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(__webpack_require__.s = 1);\n","/*!\r\n globals: angular, window\r\n List of used element methods available in JQuery but not in JQuery Lite\r\n element.before(elem)\r\n element.height()\r\n element.outerHeight(true)\r\n element.height(value) = only for Top/Bottom padding elements\r\n element.scrollTop()\r\n element.scrollTop(value)\r\n */\r\n\r\nexport default class JQLiteExtras {\r\n\r\n registerFor(element) {\r\n let convertToPx, css, getStyle, isWindow;\r\n // angular implementation blows up if elem is the window\r\n css = angular.element.prototype.css;\r\n\r\n element.prototype.css = function (name, value) {\r\n let self = this;\r\n let elem = self[0];\r\n if (!(!elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style)) {\r\n return css.call(self, name, value);\r\n }\r\n };\r\n\r\n // as defined in angularjs v1.0.5\r\n isWindow = (obj) => obj && obj.document && obj.location && obj.alert && obj.setInterval;\r\n\r\n function scrollTo(self, direction, value) {\r\n let elem = self[0];\r\n let [method, prop, preserve] = {\r\n top: [\r\n 'scrollTop',\r\n 'pageYOffset',\r\n 'scrollLeft'\r\n ],\r\n left: [\r\n 'scrollLeft',\r\n 'pageXOffset',\r\n 'scrollTop'\r\n ]\r\n }[direction];\r\n\r\n const isValueDefined = typeof value !== 'undefined';\r\n if (isWindow(elem)) {\r\n if (isValueDefined) {\r\n return elem.scrollTo(self[preserve].call(self), value);\r\n }\r\n return (prop in elem) ? elem[prop] : elem.document.documentElement[method];\r\n } else {\r\n if (isValueDefined) {\r\n elem[method] = value;\r\n }\r\n return elem[method];\r\n }\r\n }\r\n\r\n if (window.getComputedStyle) {\r\n getStyle = (elem) => window.getComputedStyle(elem, null);\r\n convertToPx = (elem, value) => parseFloat(value);\r\n } else {\r\n getStyle = (elem) => elem.currentStyle;\r\n convertToPx = (elem, value) => {\r\n let left, result, rs, rsLeft, style;\r\n let core_pnum = /[+-]?(?:\\d*\\.|)\\d+(?:[eE][+-]?\\d+|)/.source;\r\n let rnumnonpx = new RegExp('^(' + core_pnum + ')(?!px)[a-z%]+$', 'i');\r\n\r\n if (!rnumnonpx.test(value)) {\r\n return parseFloat(value);\r\n }\r\n\r\n // ported from JQuery\r\n style = elem.style;\r\n left = style.left;\r\n rs = elem.runtimeStyle;\r\n rsLeft = rs && rs.left;\r\n if (rs) {\r\n rs.left = style.left;\r\n }\r\n // put in the new values to get a computed style out\r\n style.left = value;\r\n result = style.pixelLeft;\r\n style.left = left;\r\n if (rsLeft) {\r\n rs.left = rsLeft;\r\n }\r\n return result;\r\n };\r\n }\r\n\r\n function getMeasurements(elem, measure) {\r\n let base, borderA, borderB, computedMarginA, computedMarginB, computedStyle, dirA, dirB, marginA, marginB, paddingA, paddingB;\r\n\r\n if (isWindow(elem)) {\r\n base = document.documentElement[{height: 'clientHeight', width: 'clientWidth'}[measure]];\r\n\r\n return {\r\n base: base,\r\n padding: 0,\r\n border: 0,\r\n margin: 0\r\n };\r\n }\r\n\r\n // Start with offset property\r\n [\r\n base,\r\n dirA,\r\n dirB\r\n ] = {\r\n width: [\r\n elem.offsetWidth,\r\n 'Left',\r\n 'Right'\r\n ],\r\n height: [\r\n elem.offsetHeight,\r\n 'Top',\r\n 'Bottom'\r\n ]\r\n }[measure];\r\n\r\n computedStyle = getStyle(elem);\r\n paddingA = convertToPx(elem, computedStyle['padding' + dirA]) || 0;\r\n paddingB = convertToPx(elem, computedStyle['padding' + dirB]) || 0;\r\n borderA = convertToPx(elem, computedStyle['border' + dirA + 'Width']) || 0;\r\n borderB = convertToPx(elem, computedStyle['border' + dirB + 'Width']) || 0;\r\n computedMarginA = computedStyle['margin' + dirA];\r\n computedMarginB = computedStyle['margin' + dirB];\r\n\r\n // I do not care for width for now, so this hack is irrelevant\r\n // if ( !supportsPercentMargin )\r\n // computedMarginA = hackPercentMargin( elem, computedStyle, computedMarginA )\r\n // computedMarginB = hackPercentMargin( elem, computedStyle, computedMarginB )\r\n marginA = convertToPx(elem, computedMarginA) || 0;\r\n marginB = convertToPx(elem, computedMarginB) || 0;\r\n\r\n return {\r\n base: base,\r\n padding: paddingA + paddingB,\r\n border: borderA + borderB,\r\n margin: marginA + marginB\r\n };\r\n }\r\n\r\n function getWidthHeight(elem, direction, measure) {\r\n let computedStyle, result;\r\n\r\n let measurements = getMeasurements(elem, direction);\r\n\r\n if (measurements.base > 0) {\r\n return {\r\n base: measurements.base - measurements.padding - measurements.border,\r\n outer: measurements.base,\r\n outerfull: measurements.base + measurements.margin\r\n }[measure];\r\n }\r\n\r\n // Fall back to computed then uncomputed css if necessary\r\n computedStyle = getStyle(elem);\r\n result = computedStyle[direction];\r\n\r\n if (result < 0 || result === null) {\r\n result = elem.style[direction] || 0;\r\n }\r\n\r\n // Normalize \"\", auto, and prepare for extra\r\n result = parseFloat(result) || 0;\r\n\r\n return {\r\n base: result - measurements.padding - measurements.border,\r\n outer: result,\r\n outerfull: result + measurements.padding + measurements.border + measurements.margin\r\n }[measure];\r\n }\r\n\r\n // define missing methods\r\n return angular.forEach({\r\n before(newElem) {\r\n var children, elem, i, j, parent, ref, self;\r\n self = this;\r\n elem = self[0];\r\n parent = self.parent();\r\n children = parent.contents();\r\n if (children[0] === elem) {\r\n return parent.prepend(newElem);\r\n } else {\r\n for (i = j = 1, ref = children.length - 1; 1 <= ref ? j <= ref : j >= ref; i = 1 <= ref ? ++j : --j) {\r\n if (children[i] === elem) {\r\n angular.element(children[i - 1]).after(newElem);\r\n return;\r\n }\r\n }\r\n throw new Error('invalid DOM structure ' + elem.outerHTML);\r\n }\r\n },\r\n height (value){\r\n var self;\r\n self = this;\r\n if (typeof value !== 'undefined') {\r\n if (angular.isNumber(value)) {\r\n value = value + 'px';\r\n }\r\n return css.call(self, 'height', value);\r\n } else {\r\n return getWidthHeight(this[0], 'height', 'base');\r\n }\r\n },\r\n outerHeight(option) {\r\n return getWidthHeight(this[0], 'height', option ? 'outerfull' : 'outer');\r\n },\r\n outerWidth(option) {\r\n return getWidthHeight(this[0], 'width', option ? 'outerfull' : 'outer');\r\n },\r\n\r\n /*\r\n The offset setter method is not implemented\r\n */\r\n offset(value) {\r\n let docElem, win;\r\n let self = this;\r\n let box = {\r\n top: 0,\r\n left: 0\r\n };\r\n let elem = self[0];\r\n let doc = elem && elem.ownerDocument;\r\n\r\n if (arguments.length) {\r\n if (value === undefined) {\r\n return self;\r\n }\r\n // TODO: implement setter\r\n throw new Error('offset setter method is not implemented');\r\n }\r\n\r\n if (!doc) {\r\n return;\r\n }\r\n\r\n docElem = doc.documentElement;\r\n\r\n // TODO: Make sure it's not a disconnected DOM node\r\n\r\n if (elem.getBoundingClientRect != null) {\r\n box = elem.getBoundingClientRect();\r\n }\r\n\r\n win = doc.defaultView || doc.parentWindow;\r\n\r\n return {\r\n top: box.top + (win.pageYOffset || docElem.scrollTop) - (docElem.clientTop || 0),\r\n left: box.left + (win.pageXOffset || docElem.scrollLeft) - (docElem.clientLeft || 0)\r\n };\r\n },\r\n scrollTop(value) {\r\n return scrollTo(this, 'top', value);\r\n },\r\n scrollLeft(value) {\r\n return scrollTo(this, 'left', value);\r\n }\r\n }, (value, key) => {\r\n if (!element.prototype[key]) {\r\n return element.prototype[key] = value;\r\n }\r\n });\r\n }\r\n\r\n}\r\n","const hideClassToken = 'ng-ui-scroll-hide';\r\n\r\nexport default class ElementRoutines {\r\n\r\n static addCSSRules() {\r\n const selector = '.' + hideClassToken;\r\n const rules = 'display: none';\r\n const sheet = document.styleSheets[0];\r\n let index;\r\n try {\r\n index = sheet.cssRules.length;\r\n } catch (err) {\r\n index = 0;\r\n }\r\n if('insertRule' in sheet) {\r\n sheet.insertRule(selector + '{' + rules + '}', index);\r\n }\r\n else if('addRule' in sheet) {\r\n sheet.addRule(selector, rules, index);\r\n }\r\n }\r\n\r\n constructor($injector, $q) {\r\n this.$animate = ($injector.has && $injector.has('$animate')) ? $injector.get('$animate') : null;\r\n this.isAngularVersionLessThen1_3 = angular.version.major === 1 && angular.version.minor < 3;\r\n this.$q = $q;\r\n }\r\n\r\n hideElement(wrapper) {\r\n wrapper.element.addClass(hideClassToken);\r\n }\r\n\r\n showElement(wrapper) {\r\n wrapper.element.removeClass(hideClassToken);\r\n }\r\n\r\n insertElement(newElement, previousElement) {\r\n previousElement.after(newElement);\r\n return [];\r\n }\r\n\r\n removeElement(wrapper) {\r\n wrapper.element.remove();\r\n wrapper.scope.$destroy();\r\n return [];\r\n }\r\n\r\n insertElementAnimated(newElement, previousElement) {\r\n if (!this.$animate) {\r\n return this.insertElement(newElement, previousElement);\r\n }\r\n\r\n if (this.isAngularVersionLessThen1_3) {\r\n const deferred = this.$q.defer();\r\n // no need for parent - previous element is never null\r\n this.$animate.enter(newElement, null, previousElement, () => deferred.resolve());\r\n\r\n return [deferred.promise];\r\n }\r\n\r\n // no need for parent - previous element is never null\r\n return [this.$animate.enter(newElement, null, previousElement)];\r\n }\r\n\r\n removeElementAnimated(wrapper) {\r\n if (!this.$animate) {\r\n return this.removeElement(wrapper);\r\n }\r\n\r\n if (this.isAngularVersionLessThen1_3) {\r\n const deferred = this.$q.defer();\r\n this.$animate.leave(wrapper.element, () => {\r\n wrapper.scope.$destroy();\r\n return deferred.resolve();\r\n });\r\n\r\n return [deferred.promise];\r\n }\r\n\r\n return [(this.$animate.leave(wrapper.element)).then(() => wrapper.scope.$destroy())];\r\n }\r\n}","export const OPERATIONS = {\r\n PREPEND: 'prepend',\r\n APPEND: 'append',\r\n INSERT: 'insert',\r\n REMOVE: 'remove',\r\n NONE: 'none'\r\n};\r\n","import { OPERATIONS } from './utils';\r\n\r\nexport default function ScrollBuffer(elementRoutines, bufferSize, startIndex) {\r\n const buffer = Object.create(Array.prototype);\r\n\r\n angular.extend(buffer, {\r\n size: bufferSize,\r\n\r\n reset(startIndex) {\r\n buffer.remove(0, buffer.length);\r\n buffer.eof = false;\r\n buffer.bof = false;\r\n buffer.first = startIndex;\r\n buffer.next = startIndex;\r\n buffer.minIndex = startIndex;\r\n buffer.maxIndex = startIndex;\r\n buffer.minIndexUser = null;\r\n buffer.maxIndexUser = null;\r\n },\r\n\r\n append(items) {\r\n items.forEach((item) => {\r\n ++buffer.next;\r\n buffer.insert(OPERATIONS.APPEND, item);\r\n });\r\n buffer.maxIndex = buffer.eof ? buffer.next - 1 : Math.max(buffer.next - 1, buffer.maxIndex);\r\n },\r\n\r\n prepend(items, immutableTop) {\r\n items.reverse().forEach((item) => {\r\n if (immutableTop) {\r\n ++buffer.next;\r\n }\r\n else {\r\n --buffer.first;\r\n }\r\n buffer.insert(OPERATIONS.PREPEND, item);\r\n });\r\n buffer.minIndex = buffer.bof ? buffer.minIndex = buffer.first : Math.min(buffer.first, buffer.minIndex);\r\n },\r\n\r\n /**\r\n * inserts wrapped element in the buffer\r\n * the first argument is either operation keyword (see below) or a number for operation 'insert'\r\n * for insert the number is the index for the buffer element the new one have to be inserted after\r\n * operations: 'append', 'prepend', 'insert', 'remove', 'none'\r\n */\r\n insert(operation, item, shiftTop) {\r\n const wrapper = {\r\n item: item\r\n };\r\n\r\n if (operation % 1 === 0) { // it is an insert\r\n wrapper.op = OPERATIONS.INSERT;\r\n buffer.splice(operation, 0, wrapper);\r\n if (shiftTop) {\r\n buffer.first--;\r\n }\r\n else {\r\n buffer.next++;\r\n }\r\n } else {\r\n wrapper.op = operation;\r\n switch (operation) {\r\n case OPERATIONS.APPEND:\r\n buffer.push(wrapper);\r\n break;\r\n case OPERATIONS.PREPEND:\r\n buffer.unshift(wrapper);\r\n break;\r\n }\r\n }\r\n },\r\n\r\n // removes elements from buffer\r\n remove(arg1, arg2) {\r\n if (angular.isNumber(arg1)) {\r\n // removes items from arg1 (including) through arg2 (excluding)\r\n for (let i = arg1; i < arg2; i++) {\r\n elementRoutines.removeElement(buffer[i]);\r\n }\r\n return buffer.splice(arg1, arg2 - arg1);\r\n }\r\n // removes single item (wrapper) from the buffer\r\n buffer.splice(buffer.indexOf(arg1), 1);\r\n if (arg1.shiftTop && buffer.first === this.getAbsMinIndex()) {\r\n this.incrementMinIndex();\r\n }\r\n else {\r\n this.decrementMaxIndex();\r\n }\r\n if (arg1.shiftTop) {\r\n buffer.first++;\r\n }\r\n else {\r\n buffer.next--;\r\n }\r\n if (!buffer.length) {\r\n buffer.minIndex = Math.min(buffer.maxIndex, buffer.minIndex);\r\n }\r\n\r\n return elementRoutines.removeElementAnimated(arg1);\r\n },\r\n\r\n incrementMinIndex() {\r\n if (buffer.minIndexUser !== null) {\r\n if (buffer.minIndex > buffer.minIndexUser) {\r\n buffer.minIndexUser++;\r\n return;\r\n }\r\n if (buffer.minIndex === buffer.minIndexUser) {\r\n buffer.minIndexUser++;\r\n }\r\n }\r\n buffer.minIndex++;\r\n },\r\n\r\n decrementMaxIndex() {\r\n if (buffer.maxIndexUser !== null && buffer.maxIndex <= buffer.maxIndexUser) {\r\n buffer.maxIndexUser--;\r\n }\r\n buffer.maxIndex--;\r\n },\r\n\r\n getAbsMinIndex() {\r\n if (buffer.minIndexUser !== null) {\r\n return Math.min(buffer.minIndexUser, buffer.minIndex);\r\n }\r\n return buffer.minIndex;\r\n },\r\n\r\n getAbsMaxIndex() {\r\n if (buffer.maxIndexUser !== null) {\r\n return Math.max(buffer.maxIndexUser, buffer.maxIndex);\r\n }\r\n return buffer.maxIndex;\r\n },\r\n\r\n effectiveHeight(elements) {\r\n if (!elements.length) {\r\n return 0;\r\n }\r\n let top = Number.MAX_VALUE;\r\n let bottom = Number.NEGATIVE_INFINITY;\r\n elements.forEach((wrapper) => {\r\n if (wrapper.element[0].offsetParent) {\r\n // element style is not display:none\r\n top = Math.min(top, wrapper.element.offset().top);\r\n bottom = Math.max(bottom, wrapper.element.offset().top + wrapper.element.outerHeight(true));\r\n }\r\n });\r\n return Math.max(0, bottom - top);\r\n },\r\n\r\n getItems() {\r\n return buffer.filter(item => item.op === OPERATIONS.NONE);\r\n },\r\n\r\n getFirstItem() {\r\n const list = buffer.getItems();\r\n if (!list.length) {\r\n return null;\r\n }\r\n return list[0].item;\r\n },\r\n\r\n getLastItem() {\r\n const list = buffer.getItems();\r\n if (!list.length) {\r\n return null;\r\n }\r\n return list[list.length - 1].item;\r\n }\r\n\r\n });\r\n\r\n buffer.reset(startIndex);\r\n\r\n return buffer;\r\n}\r\n","// Can't just extend the Array, due to Babel does not support built-in classes extending\r\n// This solution was taken from https://stackoverflow.com/questions/46897414/es6-class-extends-array-workaround-for-es5-babel-transpile\r\nclass CacheProto {\r\n add(item) {\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index === item.scope.$index) {\r\n this[i].height = item.element.outerHeight();\r\n return;\r\n }\r\n }\r\n this.push({\r\n index: item.scope.$index,\r\n height: item.element.outerHeight()\r\n });\r\n this.sort((a, b) => ((a.index < b.index) ? -1 : ((a.index > b.index) ? 1 : 0)));\r\n }\r\n\r\n remove(argument, _shiftTop) {\r\n const index = argument % 1 === 0 ? argument : argument.scope.$index;\r\n const shiftTop = argument % 1 === 0 ? _shiftTop : argument.shiftTop;\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index === index) {\r\n this.splice(i, 1);\r\n break;\r\n }\r\n }\r\n if (!shiftTop) {\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index > index) {\r\n this[i].index--;\r\n }\r\n }\r\n }\r\n }\r\n\r\n clear() {\r\n this.length = 0;\r\n }\r\n}\r\n\r\nfunction Cache() {\r\n const instance = [];\r\n instance.push.apply(instance, arguments);\r\n Object.setPrototypeOf(instance, Cache.prototype);\r\n return instance;\r\n}\r\nCache.prototype = Object.create(Array.prototype);\r\nObject.getOwnPropertyNames(CacheProto.prototype).forEach(methodName =>\r\n Cache.prototype[methodName] = CacheProto.prototype[methodName]\r\n);\r\n\r\nfunction generateElement(template) {\r\n if (template.nodeType !== Node.ELEMENT_NODE) {\r\n throw new Error('ui-scroll directive requires an Element node for templating the view');\r\n }\r\n let element;\r\n switch (template.tagName.toLowerCase()) {\r\n case 'dl':\r\n throw new Error(`ui-scroll directive does not support <${template.tagName}> as a repeating tag: ${template.outerHTML}`);\r\n case 'tr':\r\n let table = angular.element('');\r\n element = table.find('tr');\r\n break;\r\n case 'li':\r\n element = angular.element('');\r\n break;\r\n default:\r\n element = angular.element('');\r\n }\r\n return element;\r\n}\r\n\r\nclass Padding {\r\n constructor(template) {\r\n this.element = generateElement(template);\r\n this.cache = new Cache();\r\n }\r\n\r\n height() {\r\n return this.element.height.apply(this.element, arguments);\r\n }\r\n}\r\n\r\nexport default Padding;","import Padding from './padding';\r\n\r\nexport default function Viewport(elementRoutines, buffer, element, viewportController, $rootScope, padding) {\r\n let topPadding = null;\r\n let bottomPadding = null;\r\n const viewport = viewportController && viewportController.viewport ? viewportController.viewport : angular.element(window);\r\n const container = viewportController && viewportController.container ? viewportController.container : undefined;\r\n const scope = viewportController && viewportController.scope ? viewportController.scope : $rootScope;\r\n\r\n viewport.css({\r\n 'overflow-anchor': 'none',\r\n 'overflow-y': 'auto',\r\n 'display': 'block'\r\n });\r\n\r\n function bufferPadding() {\r\n return viewport.outerHeight() * padding; // some extra space to initiate preload\r\n }\r\n\r\n angular.extend(viewport, {\r\n getScope() {\r\n return scope;\r\n },\r\n\r\n createPaddingElements(template) {\r\n topPadding = new Padding(template);\r\n bottomPadding = new Padding(template);\r\n element.before(topPadding.element);\r\n element.after(bottomPadding.element);\r\n topPadding.height(0);\r\n bottomPadding.height(0);\r\n },\r\n\r\n applyContainerStyle() {\r\n if (!container) {\r\n return true;\r\n }\r\n if (container !== viewport) {\r\n viewport.css('height', window.getComputedStyle(container[0]).height);\r\n }\r\n return viewport.height() > 0;\r\n },\r\n\r\n bottomDataPos() {\r\n let scrollHeight = viewport[0].scrollHeight;\r\n scrollHeight = scrollHeight != null ? scrollHeight : viewport[0].document.documentElement.scrollHeight;\r\n return scrollHeight - bottomPadding.height();\r\n },\r\n\r\n topDataPos() {\r\n return topPadding.height();\r\n },\r\n\r\n bottomVisiblePos() {\r\n return viewport.scrollTop() + viewport.outerHeight();\r\n },\r\n\r\n topVisiblePos() {\r\n return viewport.scrollTop();\r\n },\r\n\r\n insertElement(e, sibling) {\r\n return elementRoutines.insertElement(e, sibling || topPadding.element);\r\n },\r\n\r\n insertElementAnimated(e, sibling) {\r\n return elementRoutines.insertElementAnimated(e, sibling || topPadding.element);\r\n },\r\n\r\n shouldLoadBottom() {\r\n return !buffer.eof && viewport.bottomDataPos() < viewport.bottomVisiblePos() + bufferPadding();\r\n },\r\n\r\n clipBottom() {\r\n // clip the invisible items off the bottom\r\n let overage = 0;\r\n let overageHeight = 0;\r\n let itemHeight = 0;\r\n let emptySpaceHeight = viewport.bottomDataPos() - viewport.bottomVisiblePos() - bufferPadding();\r\n\r\n for (let i = buffer.length - 1; i >= 0; i--) {\r\n itemHeight = buffer[i].element.outerHeight(true);\r\n if (overageHeight + itemHeight > emptySpaceHeight) {\r\n break;\r\n }\r\n bottomPadding.cache.add(buffer[i]);\r\n overageHeight += itemHeight;\r\n overage++;\r\n }\r\n\r\n if (overage > 0) {\r\n buffer.eof = false;\r\n buffer.remove(buffer.length - overage, buffer.length);\r\n buffer.next -= overage;\r\n viewport.adjustPaddings();\r\n }\r\n },\r\n\r\n shouldLoadTop() {\r\n return !buffer.bof && (viewport.topDataPos() > viewport.topVisiblePos() - bufferPadding());\r\n },\r\n\r\n clipTop() {\r\n // clip the invisible items off the top\r\n let overage = 0;\r\n let overageHeight = 0;\r\n let itemHeight = 0;\r\n let emptySpaceHeight = viewport.topVisiblePos() - viewport.topDataPos() - bufferPadding();\r\n\r\n for (let i = 0; i < buffer.length; i++) {\r\n itemHeight = buffer[i].element.outerHeight(true);\r\n if (overageHeight + itemHeight > emptySpaceHeight) {\r\n break;\r\n }\r\n topPadding.cache.add(buffer[i]);\r\n overageHeight += itemHeight;\r\n overage++;\r\n }\r\n\r\n if (overage > 0) {\r\n // we need to adjust top padding element before items are removed from top\r\n // to avoid strange behaviour of scroll bar during remove top items when we are at the very bottom\r\n topPadding.height(topPadding.height() + overageHeight);\r\n buffer.bof = false;\r\n buffer.remove(0, overage);\r\n buffer.first += overage;\r\n }\r\n },\r\n\r\n adjustPaddings() {\r\n if (!buffer.length) {\r\n return;\r\n }\r\n\r\n // precise heights calculation based on items that are in buffer or that were in buffer once\r\n const visibleItemsHeight = buffer.reduce((summ, item) => summ + item.element.outerHeight(true), 0);\r\n\r\n let topPaddingHeight = 0, topCount = 0;\r\n topPadding.cache.forEach(item => {\r\n if (item.index < buffer.first) {\r\n topPaddingHeight += item.height;\r\n topCount++;\r\n }\r\n });\r\n\r\n let bottomPaddingHeight = 0, bottomCount = 0;\r\n bottomPadding.cache.forEach(item => {\r\n if (item.index >= buffer.next) {\r\n bottomPaddingHeight += item.height;\r\n bottomCount++;\r\n }\r\n });\r\n\r\n const totalHeight = visibleItemsHeight + topPaddingHeight + bottomPaddingHeight;\r\n const averageItemHeight = totalHeight / (topCount + bottomCount + buffer.length);\r\n\r\n // average heights calculation, items that have never been reached\r\n let adjustTopPadding = buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser;\r\n let adjustBottomPadding = buffer.maxIndexUser !== null && buffer.maxIndex < buffer.maxIndexUser;\r\n let topPaddingHeightAdd = adjustTopPadding ? (buffer.minIndex - buffer.minIndexUser) * averageItemHeight : 0;\r\n let bottomPaddingHeightAdd = adjustBottomPadding ? (buffer.maxIndexUser - buffer.maxIndex) * averageItemHeight : 0;\r\n\r\n // paddings combine adjustment\r\n topPadding.height(topPaddingHeight + topPaddingHeightAdd);\r\n bottomPadding.height(bottomPaddingHeight + bottomPaddingHeightAdd);\r\n },\r\n\r\n onAfterMinIndexSet(topPaddingHeightOld) {\r\n // additional scrollTop adjustment in case of datasource.minIndex external set\r\n if (buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser) {\r\n let diff = topPadding.height() - topPaddingHeightOld;\r\n viewport.scrollTop(viewport.scrollTop() + diff);\r\n while((diff -= viewport.scrollTop()) > 0) {\r\n bottomPadding.height(bottomPadding.height() + diff);\r\n viewport.scrollTop(viewport.scrollTop() + diff);\r\n }\r\n }\r\n },\r\n\r\n onAfterPrepend(updates) {\r\n if (!updates.prepended.length) {\r\n return;\r\n }\r\n const height = buffer.effectiveHeight(updates.prepended);\r\n const paddingHeight = topPadding.height() - height;\r\n if (paddingHeight >= 0) {\r\n topPadding.height(paddingHeight);\r\n return;\r\n }\r\n const position = viewport.scrollTop();\r\n const newPosition = position - paddingHeight;\r\n viewport.synthetic = { previous: position, next: newPosition };\r\n topPadding.height(0);\r\n viewport.scrollTop(newPosition);\r\n },\r\n\r\n resetTopPadding() {\r\n topPadding.height(0);\r\n topPadding.cache.clear();\r\n },\r\n\r\n resetBottomPadding() {\r\n bottomPadding.height(0);\r\n bottomPadding.cache.clear();\r\n },\r\n\r\n removeCacheItem(item, shiftTop) {\r\n topPadding.cache.remove(item, shiftTop);\r\n bottomPadding.cache.remove(item, shiftTop);\r\n },\r\n\r\n removeItem(item) {\r\n this.removeCacheItem(item);\r\n return buffer.remove(item);\r\n }\r\n });\r\n\r\n return viewport;\r\n}\r\n","import { OPERATIONS } from './utils';\r\n\r\nclass Adapter {\r\n\r\n constructor($scope, $parse, $attr, viewport, buffer, doAdjust, reload) {\r\n this.$parse = $parse;\r\n this.$attr = $attr;\r\n this.viewport = viewport;\r\n this.buffer = buffer;\r\n\r\n this.doAdjust = doAdjust;\r\n this.reload = reload;\r\n\r\n this.isLoading = false;\r\n this.disabled = false;\r\n\r\n const viewportScope = viewport.getScope();\r\n this.startScope = viewportScope.$parent ? viewportScope : $scope;\r\n\r\n this.publicContext = {};\r\n this.assignAdapter($attr.adapter);\r\n this.generatePublicContext();\r\n }\r\n\r\n assignAdapter(adapterAttr) {\r\n if (!adapterAttr || !(adapterAttr = adapterAttr.replace(/^\\s+|\\s+$/gm, ''))) {\r\n return;\r\n }\r\n let adapterOnScope;\r\n\r\n try {\r\n this.$parse(adapterAttr).assign(this.startScope, {});\r\n adapterOnScope = this.$parse(adapterAttr)(this.startScope);\r\n }\r\n catch (error) {\r\n error.message = `Angular ui-scroll Adapter assignment exception.\\n` +\r\n `Can't parse \"${adapterAttr}\" expression.\\n` +\r\n error.message;\r\n throw error;\r\n }\r\n\r\n angular.extend(adapterOnScope, this.publicContext);\r\n this.publicContext = adapterOnScope;\r\n }\r\n\r\n generatePublicContext() {\r\n // these methods will be accessible out of ui-scroll via user defined adapter\r\n const publicMethods = ['reload', 'applyUpdates', 'append', 'prepend', 'isBOF', 'isEOF', 'isEmpty'];\r\n for (let i = publicMethods.length - 1; i >= 0; i--) {\r\n this.publicContext[publicMethods[i]] = this[publicMethods[i]].bind(this);\r\n }\r\n\r\n // these read-only props will be accessible out of ui-scroll via user defined adapter\r\n const publicProps = ['isLoading', 'topVisible', 'topVisibleElement', 'topVisibleScope', 'bottomVisible', 'bottomVisibleElement', 'bottomVisibleScope'];\r\n for (let i = publicProps.length - 1; i >= 0; i--) {\r\n let property, attr = this.$attr[publicProps[i]];\r\n Object.defineProperty(this, publicProps[i], {\r\n get: () => property,\r\n set: (value) => {\r\n property = value;\r\n this.publicContext[publicProps[i]] = value;\r\n if (attr) {\r\n this.$parse(attr).assign(this.startScope, value);\r\n }\r\n }\r\n });\r\n }\r\n\r\n // read-only immediately calculated public properties\r\n const publicPropsImmediate = ['bufferFirst', 'bufferLast', 'bufferLength'];\r\n for (let i = publicPropsImmediate.length - 1; i >= 0; i--) {\r\n Object.defineProperty(this.publicContext, publicPropsImmediate[i], {\r\n get: () => this[publicPropsImmediate[i]]\r\n });\r\n }\r\n\r\n // non-read-only public property\r\n Object.defineProperty(this.publicContext, 'disabled', {\r\n get: () => this.disabled,\r\n set: (value) => (!(this.disabled = value)) ? this.doAdjust() : null\r\n });\r\n }\r\n\r\n loading(value) {\r\n this.isLoading = value;\r\n }\r\n\r\n isBOF() {\r\n return this.buffer.bof;\r\n }\r\n\r\n isEOF() {\r\n return this.buffer.eof;\r\n }\r\n\r\n isEmpty() {\r\n return !this.buffer.length;\r\n }\r\n\r\n get bufferLength() {\r\n return this.buffer.getItems().length;\r\n }\r\n\r\n get bufferFirst() {\r\n return this.buffer.getFirstItem();\r\n }\r\n\r\n get bufferLast() {\r\n return this.buffer.getLastItem();\r\n }\r\n\r\n append(newItems) {\r\n this.buffer.append(newItems);\r\n this.doAdjust();\r\n this.viewport.clipTop();\r\n this.viewport.clipBottom();\r\n }\r\n\r\n prepend(newItems, options = {}) {\r\n this.buffer.prepend(newItems, options.immutableTop);\r\n this.doAdjust();\r\n this.viewport.clipTop();\r\n this.viewport.clipBottom();\r\n }\r\n\r\n applyUpdates(arg1, arg2, arg3) {\r\n if (typeof arg1 === 'function') {\r\n this.applyUpdatesFunc(arg1, arg2);\r\n } else {\r\n this.applyUpdatesIndex(arg1, arg2, arg3);\r\n }\r\n this.doAdjust();\r\n }\r\n\r\n applyUpdatesFunc(cb, options = {}) {\r\n this.buffer.slice(0).forEach((wrapper) => {\r\n // we need to do it on the buffer clone, because buffer content\r\n // may change as we iterate through\r\n this.applyUpdate(wrapper, cb(wrapper.item, wrapper.scope, wrapper.element), options);\r\n });\r\n }\r\n\r\n applyUpdatesIndex(index, newItems, options = {}) {\r\n if (index % 1 !== 0) {\r\n throw new Error('applyUpdates - ' + index + ' is not a valid index (should be an integer)');\r\n }\r\n const _index = index - this.buffer.first;\r\n\r\n // apply updates only within buffer\r\n if (_index >= 0 && _index < this.buffer.length) {\r\n this.applyUpdate(this.buffer[_index], newItems, options);\r\n }\r\n // out-of-buffer case: deletion may affect Paddings\r\n else if(index >= this.buffer.getAbsMinIndex() && index <= this.buffer.getAbsMaxIndex()) {\r\n if(angular.isArray(newItems) && !newItems.length) {\r\n this.viewport.removeCacheItem(index, !options.immutableTop && index === this.buffer.minIndex);\r\n if (!options.immutableTop && index === this.buffer.getAbsMinIndex()) {\r\n this.buffer.incrementMinIndex();\r\n }\r\n else {\r\n this.buffer.decrementMaxIndex();\r\n }\r\n }\r\n }\r\n }\r\n\r\n applyUpdate(wrapper, newItems, options = {}) {\r\n if (!angular.isArray(newItems)) {\r\n return;\r\n }\r\n let position = this.buffer.indexOf(wrapper);\r\n if (!newItems.reverse().some(newItem => newItem === wrapper.item)) {\r\n wrapper.op = OPERATIONS.REMOVE;\r\n // try to catch \"first\" edge case on remove\r\n if (!options.immutableTop && !newItems.length) {\r\n // this is the first item, or the previous one's part of the \"shift-top\" group\r\n if (\r\n (position === 0 && this.buffer.bof) ||\r\n (position !== 0 && this.buffer[position - 1].shiftTop)\r\n ) {\r\n wrapper.shiftTop = true;\r\n }\r\n }\r\n }\r\n newItems.forEach((newItem) => {\r\n if (newItem === wrapper.item) {\r\n position--;\r\n } else {\r\n // 3 parameter (shiftTop) is to catch \"first\" edge case on insert\r\n this.buffer.insert(position + 1, newItem, !options.immutableTop && position === -1);\r\n }\r\n });\r\n }\r\n\r\n calculateProperties() {\r\n let rowTop = null, topHeight = 0;\r\n let topDone = false, bottomDone = false;\r\n const length = this.buffer.length;\r\n\r\n for (let i = 0; i < length; i++) {\r\n const item = this.buffer[i];\r\n const itemTop = item.element.offset().top;\r\n\r\n if (rowTop !== itemTop) { // a new row condition\r\n const itemHeight = item.element.outerHeight(true);\r\n const top = this.viewport.topDataPos() + topHeight + itemHeight;\r\n\r\n if (!topDone && top > this.viewport.topVisiblePos()) {\r\n topDone = true;\r\n this['topVisible'] = item.item;\r\n this['topVisibleElement'] = item.element;\r\n this['topVisibleScope'] = item.scope;\r\n }\r\n if (!bottomDone && (top >= this.viewport.bottomVisiblePos() || (i === length - 1 && this.isEOF()))) {\r\n bottomDone = true;\r\n this['bottomVisible'] = item.item;\r\n this['bottomVisibleElement'] = item.element;\r\n this['bottomVisibleScope'] = item.scope;\r\n }\r\n topHeight += itemHeight;\r\n }\r\n rowTop = itemTop;\r\n\r\n if (topDone && bottomDone) {\r\n break;\r\n }\r\n }\r\n }\r\n\r\n}\r\n\r\nexport default Adapter;\r\n","import JQLiteExtras from './modules/jqLiteExtras';\r\nimport ElementRoutines from './modules/elementRoutines.js';\r\nimport ScrollBuffer from './modules/buffer.js';\r\nimport Viewport from './modules/viewport.js';\r\nimport Adapter from './modules/adapter.js';\r\nimport { OPERATIONS } from './modules/utils';\r\n\r\nangular.module('ui.scroll', [])\r\n\r\n .constant('JQLiteExtras', JQLiteExtras)\r\n .run(['JQLiteExtras', (JQLiteExtras) => {\r\n const elt = angular.element;\r\n !(window.jQuery && elt.fn && elt.fn.jquery) ? (new JQLiteExtras()).registerFor(elt) : null;\r\n ElementRoutines.addCSSRules();\r\n }])\r\n\r\n .directive('uiScrollViewport', function () {\r\n return {\r\n restrict: 'A',\r\n controller: [\r\n '$scope',\r\n '$element',\r\n function (scope, element) {\r\n this.container = element;\r\n this.viewport = element;\r\n this.scope = scope;\r\n\r\n angular.forEach(element.children(), child => {\r\n if (child.tagName.toLowerCase() === 'tbody') {\r\n this.viewport = angular.element(child);\r\n }\r\n });\r\n\r\n return this;\r\n }\r\n ]\r\n };\r\n })\r\n\r\n .directive('uiScroll', [\r\n '$log',\r\n '$injector',\r\n '$rootScope',\r\n '$timeout',\r\n '$interval',\r\n '$q',\r\n '$parse',\r\n function (console, $injector, $rootScope, $timeout, $interval, $q, $parse) {\r\n\r\n return {\r\n require: ['?^uiScrollViewport'],\r\n restrict: 'A',\r\n transclude: 'element',\r\n priority: 1000,\r\n terminal: true,\r\n link: link\r\n };\r\n\r\n function link($scope, element, $attr, controllers, linker) {\r\n const match = $attr.uiScroll.match(/^\\s*(\\w+)\\s+in\\s+([(\\w|\\$)\\.]+)\\s*$/);\r\n if (!match) {\r\n throw new Error('Expected uiScroll in form of \\'_item_ in _datasource_\\' but got \\'' + $attr.uiScroll + '\\'');\r\n }\r\n\r\n function parseNumber(value, defaultValue, isFloat) {\r\n if (!isFloat) {\r\n value = value === null ? defaultValue : Math.floor(value);\r\n }\r\n return isNaN(value) ? defaultValue : value;\r\n }\r\n\r\n function parseNumericAttr(value, defaultValue, isFloat) {\r\n const result = $parse(value)($scope);\r\n return parseNumber(result, defaultValue, isFloat);\r\n }\r\n\r\n function parseBooleanAttr(value, defaultValue) {\r\n const result = $parse(value)($scope);\r\n return typeof result === 'boolean' ? result : defaultValue;\r\n }\r\n\r\n const BUFFER_MIN = 3;\r\n const BUFFER_DEFAULT = 10;\r\n const PADDING_MIN = 0.3;\r\n const PADDING_DEFAULT = 0.5;\r\n const HANDLE_INERTIA_DEFAULT = true;\r\n const START_INDEX_DEFAULT = 1;\r\n const MAX_VIEWPORT_DELAY = 500;\r\n const VIEWPORT_POLLING_INTERVAL = 50;\r\n\r\n let datasource = null;\r\n const itemName = match[1];\r\n const datasourceName = match[2];\r\n const viewportController = controllers[0];\r\n const bufferSize = Math.max(BUFFER_MIN, parseNumericAttr($attr.bufferSize, BUFFER_DEFAULT));\r\n const padding = Math.max(PADDING_MIN, parseNumericAttr($attr.padding, PADDING_DEFAULT, true));\r\n const handleInertia = parseBooleanAttr($attr.handleInertia, HANDLE_INERTIA_DEFAULT);\r\n let startIndex = parseNumericAttr($attr.startIndex, START_INDEX_DEFAULT);\r\n let ridActual = 0; // current data revision id\r\n let pending = [];\r\n\r\n const elementRoutines = new ElementRoutines($injector, $q);\r\n const buffer = new ScrollBuffer(elementRoutines, bufferSize, startIndex);\r\n const viewport = new Viewport(elementRoutines, buffer, element, viewportController, $rootScope, padding);\r\n const adapter = new Adapter($scope, $parse, $attr, viewport, buffer, doAdjust, reload);\r\n\r\n if (viewportController) {\r\n viewportController.adapter = adapter;\r\n }\r\n\r\n const isDatasourceValid = () =>\r\n Object.prototype.toString.call(datasource) === '[object Object]' && typeof datasource.get === 'function';\r\n\r\n datasource = $parse(datasourceName)($scope); // try to get datasource on scope\r\n if (!isDatasourceValid()) {\r\n datasource = $injector.get(datasourceName); // try to inject datasource as service\r\n if (!isDatasourceValid()) {\r\n throw new Error(datasourceName + ' is not a valid datasource');\r\n }\r\n }\r\n\r\n let onRenderHandlers = [];\r\n function onRenderHandlersRunner() {\r\n onRenderHandlers.forEach(handler => handler.run());\r\n onRenderHandlers = [];\r\n }\r\n function persistDatasourceIndex(datasource, propName) {\r\n let getter;\r\n // need to postpone min/maxIndexUser processing if the view is empty\r\n if(angular.isNumber(datasource[propName])) {\r\n getter = datasource[propName];\r\n if(angular.isNumber(getter)) {\r\n onRenderHandlers = onRenderHandlers.filter(handler => handler.id !== propName);\r\n onRenderHandlers.push({\r\n id: propName,\r\n run: () => datasource[propName] = getter\r\n });\r\n }\r\n }\r\n }\r\n\r\n function defineDatasourceIndex(datasource, propName, propUserName) {\r\n const descriptor = Object.getOwnPropertyDescriptor(datasource, propName);\r\n if (descriptor && (descriptor.set || descriptor.get)) {\r\n return;\r\n }\r\n let getter;\r\n persistDatasourceIndex(datasource, propName);\r\n Object.defineProperty(datasource, propName, {\r\n set: (value) => {\r\n getter = value;\r\n if(pending.length && !buffer.length) {\r\n persistDatasourceIndex(datasource, propName);\r\n return;\r\n }\r\n buffer[propUserName] = value;\r\n const topPaddingHeightOld = viewport.topDataPos();\r\n viewport.adjustPaddings();\r\n if (propName === 'minIndex') {\r\n viewport.onAfterMinIndexSet(topPaddingHeightOld);\r\n }\r\n },\r\n get: () => getter\r\n });\r\n }\r\n\r\n defineDatasourceIndex(datasource, 'minIndex', 'minIndexUser');\r\n defineDatasourceIndex(datasource, 'maxIndex', 'maxIndexUser');\r\n\r\n const fetchNext = (datasource.get.length !== 2) ?\r\n (success) => datasource.get(buffer.next, bufferSize, success) :\r\n (success) => {\r\n datasource.get({\r\n index: buffer.next,\r\n append: buffer.length ? buffer[buffer.length - 1].item : void 0,\r\n count: bufferSize\r\n }, success);\r\n };\r\n\r\n const fetchPrevious = (datasource.get.length !== 2) ?\r\n (success) => datasource.get(buffer.first - bufferSize, bufferSize, success) :\r\n (success) => {\r\n datasource.get({\r\n index: buffer.first - bufferSize,\r\n prepend: buffer.length ? buffer[0].item : void 0,\r\n count: bufferSize\r\n }, success);\r\n };\r\n\r\n const initialize = () => {\r\n let tryCount = 0;\r\n if(!viewport.applyContainerStyle()) {\r\n const timer = $interval(() => {\r\n tryCount++;\r\n if(viewport.applyContainerStyle()) {\r\n $interval.cancel(timer);\r\n doAdjust();\r\n }\r\n if(tryCount * VIEWPORT_POLLING_INTERVAL >= MAX_VIEWPORT_DELAY) {\r\n $interval.cancel(timer);\r\n throw Error(`ui-scroll directive requires a viewport with non-zero height in ${MAX_VIEWPORT_DELAY}ms`);\r\n }\r\n }, VIEWPORT_POLLING_INTERVAL);\r\n }\r\n else {\r\n doAdjust();\r\n }\r\n };\r\n\r\n /**\r\n * Build padding elements\r\n *\r\n * Calling linker is the only way I found to get access to the tag name of the template\r\n * to prevent the directive scope from pollution a new scope is created and destroyed\r\n * right after the builder creation is completed\r\n */\r\n linker((clone, scope) => {\r\n viewport.createPaddingElements(clone[0]);\r\n // we do not include the clone in the DOM. It means that the nested directives will not\r\n // be able to reach the parent directives, but in this case it is intentional because we\r\n // created the clone to access the template tag name\r\n scope.$destroy();\r\n clone.remove();\r\n });\r\n\r\n $scope.$on('$destroy', () => {\r\n unbindEvents();\r\n viewport.off('mousewheel', wheelHandler);\r\n });\r\n\r\n viewport.on('mousewheel', wheelHandler);\r\n\r\n initialize();\r\n\r\n /* Private function definitions */\r\n\r\n function isInvalid(rid) {\r\n return (rid && rid !== ridActual) || $scope.$$destroyed;\r\n }\r\n\r\n function bindEvents() {\r\n viewport.on('resize', resizeAndScrollHandler);\r\n viewport.on('scroll', resizeAndScrollHandler);\r\n }\r\n\r\n function unbindEvents() {\r\n viewport.off('resize', resizeAndScrollHandler);\r\n viewport.off('scroll', resizeAndScrollHandler);\r\n }\r\n\r\n function reload() {\r\n unbindEvents();\r\n viewport.resetTopPadding();\r\n viewport.resetBottomPadding();\r\n if (arguments.length) {\r\n startIndex = parseNumber(arguments[0], START_INDEX_DEFAULT, false);\r\n }\r\n buffer.reset(startIndex);\r\n persistDatasourceIndex(datasource, 'minIndex');\r\n persistDatasourceIndex(datasource, 'maxIndex');\r\n doAdjust();\r\n }\r\n\r\n function isElementVisible(wrapper) {\r\n return wrapper.element.height() && wrapper.element[0].offsetParent;\r\n }\r\n\r\n function visibilityWatcher(wrapper) {\r\n if (isElementVisible(wrapper)) {\r\n buffer.forEach((item) => {\r\n if (typeof item.unregisterVisibilityWatcher === 'function') {\r\n item.unregisterVisibilityWatcher();\r\n delete item.unregisterVisibilityWatcher;\r\n }\r\n });\r\n if (!pending.length) {\r\n $timeout(() => doAdjust());\r\n }\r\n }\r\n }\r\n\r\n function insertWrapperContent(wrapper, insertAfter) {\r\n createElement(wrapper, insertAfter, viewport.insertElement);\r\n if (!isElementVisible(wrapper)) {\r\n wrapper.unregisterVisibilityWatcher = wrapper.scope.$watch(() => visibilityWatcher(wrapper));\r\n }\r\n elementRoutines.hideElement(wrapper); // hide inserted elements before data binding\r\n }\r\n\r\n function createElement(wrapper, insertAfter, insertElement) {\r\n let promises = null;\r\n const sibling = (insertAfter > 0) ? buffer[insertAfter - 1].element : undefined;\r\n linker((clone, scope) => {\r\n promises = insertElement(clone, sibling);\r\n wrapper.element = clone;\r\n wrapper.scope = scope;\r\n scope[itemName] = wrapper.item;\r\n });\r\n // ui-scroll-grid apply\r\n if (adapter.transform) {\r\n const tdInitializer = wrapper.scope.uiScrollTdInitializer;\r\n if (tdInitializer && tdInitializer.linking) {\r\n adapter.transform(wrapper.scope, wrapper.element);\r\n } else {\r\n wrapper.scope.uiScrollTdInitializer = {\r\n onLink: () => adapter.transform(wrapper.scope, wrapper.element),\r\n scope: wrapper.scope\r\n };\r\n }\r\n }\r\n return promises;\r\n }\r\n\r\n function updateDOM() {\r\n let promises = [];\r\n const toBePrepended = [];\r\n const toBeRemoved = [];\r\n const inserted = [];\r\n\r\n buffer.forEach((wrapper, i) => {\r\n switch (wrapper.op) {\r\n case OPERATIONS.PREPEND:\r\n toBePrepended.unshift(wrapper);\r\n break;\r\n case OPERATIONS.APPEND:\r\n insertWrapperContent(wrapper, i);\r\n wrapper.op = OPERATIONS.NONE;\r\n inserted.push(wrapper);\r\n break;\r\n case OPERATIONS.INSERT:\r\n promises = promises.concat(createElement(wrapper, i, viewport.insertElementAnimated));\r\n wrapper.op = OPERATIONS.NONE;\r\n inserted.push(wrapper);\r\n break;\r\n case OPERATIONS.REMOVE:\r\n toBeRemoved.push(wrapper);\r\n }\r\n });\r\n\r\n toBeRemoved.forEach((wrapper) => promises = promises.concat(viewport.removeItem(wrapper)));\r\n\r\n if (toBePrepended.length)\r\n toBePrepended.forEach((wrapper) => {\r\n insertWrapperContent(wrapper);\r\n wrapper.op = OPERATIONS.NONE;\r\n });\r\n\r\n buffer.forEach((item, i) => item.scope.$index = buffer.first + i);\r\n\r\n return {\r\n prepended: toBePrepended,\r\n removed: toBeRemoved,\r\n inserted: inserted,\r\n animated: promises\r\n };\r\n\r\n }\r\n\r\n function updatePaddings(rid, updates) {\r\n // schedule another doAdjust after animation completion\r\n if (updates.animated.length) {\r\n $q.all(updates.animated).then(() => {\r\n viewport.adjustPaddings();\r\n doAdjust(rid);\r\n });\r\n } else {\r\n viewport.adjustPaddings();\r\n }\r\n }\r\n\r\n function enqueueFetch(rid, updates) {\r\n if (viewport.shouldLoadBottom()) {\r\n if (!updates || buffer.effectiveHeight(updates.inserted) > 0) {\r\n // this means that at least one item appended in the last batch has height > 0\r\n if (pending.push(true) === 1) {\r\n adapter.loading(true);\r\n fetch(rid);\r\n }\r\n }\r\n } else if (viewport.shouldLoadTop()) {\r\n if ((!updates || buffer.effectiveHeight(updates.prepended) > 0) || pending[0]) {\r\n // this means that at least one item appended in the last batch has height > 0\r\n // pending[0] = true means that previous fetch was appending. We need to force at least one prepend\r\n // BTW there will always be at least 1 element in the pending array because bottom is fetched first\r\n if (pending.push(false) === 1) {\r\n adapter.loading(true);\r\n fetch(rid);\r\n }\r\n }\r\n }\r\n }\r\n\r\n function processUpdates() {\r\n const updates = updateDOM();\r\n\r\n // We need the item bindings to be processed before we can do adjustments\r\n !$scope.$$phase && !$rootScope.$$phase && $scope.$digest();\r\n\r\n updates.inserted.forEach(w => elementRoutines.showElement(w));\r\n updates.prepended.forEach(w => elementRoutines.showElement(w));\r\n return updates;\r\n }\r\n\r\n function doAdjust(rid) {\r\n if (!rid) { // dismiss pending requests\r\n pending = [];\r\n rid = ++ridActual;\r\n }\r\n\r\n const updates = processUpdates();\r\n\r\n if (isInvalid(rid)) {\r\n return;\r\n }\r\n\r\n updatePaddings(rid, updates);\r\n enqueueFetch(rid);\r\n\r\n if (!pending.length) {\r\n adapter.calculateProperties();\r\n }\r\n }\r\n\r\n function doAdjustAfterFetch(rid) {\r\n const updates = processUpdates();\r\n\r\n viewport.onAfterPrepend(updates);\r\n\r\n if (isInvalid(rid)) {\r\n return;\r\n }\r\n\r\n updatePaddings(rid, updates);\r\n onRenderHandlersRunner();\r\n enqueueFetch(rid, updates);\r\n pending.shift();\r\n\r\n if (pending.length)\r\n fetch(rid);\r\n else {\r\n adapter.loading(false);\r\n bindEvents();\r\n adapter.calculateProperties();\r\n }\r\n }\r\n\r\n function fetch(rid) {\r\n if (pending[0]) {// scrolling down\r\n if (buffer.length && !viewport.shouldLoadBottom()) {\r\n doAdjustAfterFetch(rid);\r\n } else {\r\n fetchNext((result) => {\r\n if (isInvalid(rid)) {\r\n return;\r\n }\r\n\r\n if (result.length < bufferSize) {\r\n buffer.eof = true;\r\n }\r\n\r\n if (result.length > 0) {\r\n viewport.clipTop();\r\n buffer.append(result);\r\n }\r\n\r\n doAdjustAfterFetch(rid);\r\n });\r\n }\r\n } else { // scrolling up\r\n if (buffer.length && !viewport.shouldLoadTop()) {\r\n doAdjustAfterFetch(rid);\r\n } else {\r\n fetchPrevious((result) => {\r\n if (isInvalid(rid)) {\r\n return;\r\n }\r\n\r\n if (result.length < bufferSize) {\r\n buffer.bof = true;\r\n // log 'bof is reached'\r\n }\r\n\r\n if (result.length > 0) {\r\n if (buffer.length) {\r\n viewport.clipBottom();\r\n }\r\n buffer.prepend(result);\r\n }\r\n\r\n doAdjustAfterFetch(rid);\r\n });\r\n }\r\n }\r\n }\r\n\r\n function fixInertia() {\r\n if (!viewport.synthetic) {\r\n return;\r\n }\r\n const oldPosition = viewport.synthetic.previous;\r\n const newPosition = viewport.synthetic.next;\r\n if (viewport.scrollTop() !== newPosition) {\r\n requestAnimationFrame(() => {\r\n const position = viewport.scrollTop();\r\n const diff = oldPosition - position;\r\n if (diff > 0) { // inertia over synthetic\r\n viewport.scrollTop(newPosition - diff);\r\n } else {\r\n viewport.scrollTop(newPosition);\r\n }\r\n viewport.synthetic = null;\r\n });\r\n return true;\r\n }\r\n viewport.synthetic = null;\r\n }\r\n\r\n function resizeAndScrollHandler() {\r\n if (handleInertia && fixInertia()) {\r\n return;\r\n }\r\n if (!$rootScope.$$phase && !adapter.isLoading && !adapter.disabled) {\r\n\r\n enqueueFetch(ridActual);\r\n\r\n if (pending.length) {\r\n unbindEvents();\r\n } else {\r\n adapter.calculateProperties();\r\n !$scope.$$phase && $scope.$digest();\r\n }\r\n }\r\n }\r\n\r\n function wheelHandler(event) {\r\n if (!adapter.disabled) {\r\n const scrollTop = viewport[0].scrollTop;\r\n const yMax = viewport[0].scrollHeight - viewport[0].clientHeight;\r\n\r\n if ((scrollTop === 0 && !buffer.bof) || (scrollTop === yMax && !buffer.eof)) {\r\n event.preventDefault();\r\n }\r\n }\r\n }\r\n }\r\n\r\n }\r\n ]);\r\n"],"sourceRoot":""}
\ No newline at end of file
diff --git a/dist/ui-scroll.min.js b/dist/ui-scroll.min.js
index a2e2175..1c721cf 100644
--- a/dist/ui-scroll.min.js
+++ b/dist/ui-scroll.min.js
@@ -1,2 +1,2 @@
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\t\t__webpack_require__.r(ns);\n \t\tObject.defineProperty(ns, 'default', { enumerable: true, value: value });\n \t\tif(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));\n \t\treturn ns;\n \t};\n\n \t// getDefaultExport function for compatibility with non-harmony modules\n \t__webpack_require__.n = function(module) {\n \t\tvar getter = module && module.__esModule ?\n \t\t\tfunction getDefault() { return module['default']; } :\n \t\t\tfunction getModuleExports() { return module; };\n \t\t__webpack_require__.d(getter, 'a', getter);\n \t\treturn getter;\n \t};\n\n \t// Object.prototype.hasOwnProperty.call\n \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(__webpack_require__.s = 1);\n","/*!\r\n globals: angular, window\r\n List of used element methods available in JQuery but not in JQuery Lite\r\n element.before(elem)\r\n element.height()\r\n element.outerHeight(true)\r\n element.height(value) = only for Top/Bottom padding elements\r\n element.scrollTop()\r\n element.scrollTop(value)\r\n */\r\n\r\nexport default class JQLiteExtras {\r\n\r\n registerFor(element) {\r\n let convertToPx, css, getStyle, isWindow;\r\n // angular implementation blows up if elem is the window\r\n css = angular.element.prototype.css;\r\n\r\n element.prototype.css = function (name, value) {\r\n let self = this;\r\n let elem = self[0];\r\n if (!(!elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style)) {\r\n return css.call(self, name, value);\r\n }\r\n };\r\n\r\n // as defined in angularjs v1.0.5\r\n isWindow = (obj) => obj && obj.document && obj.location && obj.alert && obj.setInterval;\r\n\r\n function scrollTo(self, direction, value) {\r\n let elem = self[0];\r\n let [method, prop, preserve] = {\r\n top: [\r\n 'scrollTop',\r\n 'pageYOffset',\r\n 'scrollLeft'\r\n ],\r\n left: [\r\n 'scrollLeft',\r\n 'pageXOffset',\r\n 'scrollTop'\r\n ]\r\n }[direction];\r\n\r\n const isValueDefined = typeof value !== 'undefined';\r\n if (isWindow(elem)) {\r\n if (isValueDefined) {\r\n return elem.scrollTo(self[preserve].call(self), value);\r\n }\r\n return (prop in elem) ? elem[prop] : elem.document.documentElement[method];\r\n } else {\r\n if (isValueDefined) {\r\n elem[method] = value;\r\n }\r\n return elem[method];\r\n }\r\n }\r\n\r\n if (window.getComputedStyle) {\r\n getStyle = (elem) => window.getComputedStyle(elem, null);\r\n convertToPx = (elem, value) => parseFloat(value);\r\n } else {\r\n getStyle = (elem) => elem.currentStyle;\r\n convertToPx = (elem, value) => {\r\n let left, result, rs, rsLeft, style;\r\n let core_pnum = /[+-]?(?:\\d*\\.|)\\d+(?:[eE][+-]?\\d+|)/.source;\r\n let rnumnonpx = new RegExp('^(' + core_pnum + ')(?!px)[a-z%]+$', 'i');\r\n\r\n if (!rnumnonpx.test(value)) {\r\n return parseFloat(value);\r\n }\r\n\r\n // ported from JQuery\r\n style = elem.style;\r\n left = style.left;\r\n rs = elem.runtimeStyle;\r\n rsLeft = rs && rs.left;\r\n if (rs) {\r\n rs.left = style.left;\r\n }\r\n // put in the new values to get a computed style out\r\n style.left = value;\r\n result = style.pixelLeft;\r\n style.left = left;\r\n if (rsLeft) {\r\n rs.left = rsLeft;\r\n }\r\n return result;\r\n };\r\n }\r\n\r\n function getMeasurements(elem, measure) {\r\n let base, borderA, borderB, computedMarginA, computedMarginB, computedStyle, dirA, dirB, marginA, marginB, paddingA, paddingB;\r\n\r\n if (isWindow(elem)) {\r\n base = document.documentElement[{height: 'clientHeight', width: 'clientWidth'}[measure]];\r\n\r\n return {\r\n base: base,\r\n padding: 0,\r\n border: 0,\r\n margin: 0\r\n };\r\n }\r\n\r\n // Start with offset property\r\n [\r\n base,\r\n dirA,\r\n dirB\r\n ] = {\r\n width: [\r\n elem.offsetWidth,\r\n 'Left',\r\n 'Right'\r\n ],\r\n height: [\r\n elem.offsetHeight,\r\n 'Top',\r\n 'Bottom'\r\n ]\r\n }[measure];\r\n\r\n computedStyle = getStyle(elem);\r\n paddingA = convertToPx(elem, computedStyle['padding' + dirA]) || 0;\r\n paddingB = convertToPx(elem, computedStyle['padding' + dirB]) || 0;\r\n borderA = convertToPx(elem, computedStyle['border' + dirA + 'Width']) || 0;\r\n borderB = convertToPx(elem, computedStyle['border' + dirB + 'Width']) || 0;\r\n computedMarginA = computedStyle['margin' + dirA];\r\n computedMarginB = computedStyle['margin' + dirB];\r\n\r\n // I do not care for width for now, so this hack is irrelevant\r\n // if ( !supportsPercentMargin )\r\n // computedMarginA = hackPercentMargin( elem, computedStyle, computedMarginA )\r\n // computedMarginB = hackPercentMargin( elem, computedStyle, computedMarginB )\r\n marginA = convertToPx(elem, computedMarginA) || 0;\r\n marginB = convertToPx(elem, computedMarginB) || 0;\r\n\r\n return {\r\n base: base,\r\n padding: paddingA + paddingB,\r\n border: borderA + borderB,\r\n margin: marginA + marginB\r\n };\r\n }\r\n\r\n function getWidthHeight(elem, direction, measure) {\r\n let computedStyle, result;\r\n\r\n let measurements = getMeasurements(elem, direction);\r\n\r\n if (measurements.base > 0) {\r\n return {\r\n base: measurements.base - measurements.padding - measurements.border,\r\n outer: measurements.base,\r\n outerfull: measurements.base + measurements.margin\r\n }[measure];\r\n }\r\n\r\n // Fall back to computed then uncomputed css if necessary\r\n computedStyle = getStyle(elem);\r\n result = computedStyle[direction];\r\n\r\n if (result < 0 || result === null) {\r\n result = elem.style[direction] || 0;\r\n }\r\n\r\n // Normalize \"\", auto, and prepare for extra\r\n result = parseFloat(result) || 0;\r\n\r\n return {\r\n base: result - measurements.padding - measurements.border,\r\n outer: result,\r\n outerfull: result + measurements.padding + measurements.border + measurements.margin\r\n }[measure];\r\n }\r\n\r\n // define missing methods\r\n return angular.forEach({\r\n before(newElem) {\r\n var children, elem, i, j, parent, ref, self;\r\n self = this;\r\n elem = self[0];\r\n parent = self.parent();\r\n children = parent.contents();\r\n if (children[0] === elem) {\r\n return parent.prepend(newElem);\r\n } else {\r\n for (i = j = 1, ref = children.length - 1; 1 <= ref ? j <= ref : j >= ref; i = 1 <= ref ? ++j : --j) {\r\n if (children[i] === elem) {\r\n angular.element(children[i - 1]).after(newElem);\r\n return;\r\n }\r\n }\r\n throw new Error('invalid DOM structure ' + elem.outerHTML);\r\n }\r\n },\r\n height (value){\r\n var self;\r\n self = this;\r\n if (typeof value !== 'undefined') {\r\n if (angular.isNumber(value)) {\r\n value = value + 'px';\r\n }\r\n return css.call(self, 'height', value);\r\n } else {\r\n return getWidthHeight(this[0], 'height', 'base');\r\n }\r\n },\r\n outerHeight(option) {\r\n return getWidthHeight(this[0], 'height', option ? 'outerfull' : 'outer');\r\n },\r\n outerWidth(option) {\r\n return getWidthHeight(this[0], 'width', option ? 'outerfull' : 'outer');\r\n },\r\n\r\n /*\r\n The offset setter method is not implemented\r\n */\r\n offset(value) {\r\n let docElem, win;\r\n let self = this;\r\n let box = {\r\n top: 0,\r\n left: 0\r\n };\r\n let elem = self[0];\r\n let doc = elem && elem.ownerDocument;\r\n\r\n if (arguments.length) {\r\n if (value === undefined) {\r\n return self;\r\n }\r\n // TODO: implement setter\r\n throw new Error('offset setter method is not implemented');\r\n }\r\n\r\n if (!doc) {\r\n return;\r\n }\r\n\r\n docElem = doc.documentElement;\r\n\r\n // TODO: Make sure it's not a disconnected DOM node\r\n\r\n if (elem.getBoundingClientRect != null) {\r\n box = elem.getBoundingClientRect();\r\n }\r\n\r\n win = doc.defaultView || doc.parentWindow;\r\n\r\n return {\r\n top: box.top + (win.pageYOffset || docElem.scrollTop) - (docElem.clientTop || 0),\r\n left: box.left + (win.pageXOffset || docElem.scrollLeft) - (docElem.clientLeft || 0)\r\n };\r\n },\r\n scrollTop(value) {\r\n return scrollTo(this, 'top', value);\r\n },\r\n scrollLeft(value) {\r\n return scrollTo(this, 'left', value);\r\n }\r\n }, (value, key) => {\r\n if (!element.prototype[key]) {\r\n return element.prototype[key] = value;\r\n }\r\n });\r\n }\r\n\r\n}\r\n","const hideClassToken = 'ng-ui-scroll-hide';\r\n\r\nexport default class ElementRoutines {\r\n\r\n static addCSSRules() {\r\n const selector = '.' + hideClassToken;\r\n const rules = 'display: none';\r\n const sheet = document.styleSheets[0];\r\n let index;\r\n try {\r\n index = sheet.cssRules.length;\r\n } catch (err) {\r\n index = 0;\r\n }\r\n if('insertRule' in sheet) {\r\n sheet.insertRule(selector + '{' + rules + '}', index);\r\n }\r\n else if('addRule' in sheet) {\r\n sheet.addRule(selector, rules, index);\r\n }\r\n }\r\n\r\n constructor($injector, $q) {\r\n this.$animate = ($injector.has && $injector.has('$animate')) ? $injector.get('$animate') : null;\r\n this.isAngularVersionLessThen1_3 = angular.version.major === 1 && angular.version.minor < 3;\r\n this.$q = $q;\r\n }\r\n\r\n hideElement(wrapper) {\r\n wrapper.element.addClass(hideClassToken);\r\n }\r\n\r\n showElement(wrapper) {\r\n wrapper.element.removeClass(hideClassToken);\r\n }\r\n\r\n insertElement(newElement, previousElement) {\r\n previousElement.after(newElement);\r\n return [];\r\n }\r\n\r\n removeElement(wrapper) {\r\n wrapper.element.remove();\r\n wrapper.scope.$destroy();\r\n return [];\r\n }\r\n\r\n insertElementAnimated(newElement, previousElement) {\r\n if (!this.$animate) {\r\n return this.insertElement(newElement, previousElement);\r\n }\r\n\r\n if (this.isAngularVersionLessThen1_3) {\r\n const deferred = this.$q.defer();\r\n // no need for parent - previous element is never null\r\n this.$animate.enter(newElement, null, previousElement, () => deferred.resolve());\r\n\r\n return [deferred.promise];\r\n }\r\n\r\n // no need for parent - previous element is never null\r\n return [this.$animate.enter(newElement, null, previousElement)];\r\n }\r\n\r\n removeElementAnimated(wrapper) {\r\n if (!this.$animate) {\r\n return this.removeElement(wrapper);\r\n }\r\n\r\n if (this.isAngularVersionLessThen1_3) {\r\n const deferred = this.$q.defer();\r\n this.$animate.leave(wrapper.element, () => {\r\n wrapper.scope.$destroy();\r\n return deferred.resolve();\r\n });\r\n\r\n return [deferred.promise];\r\n }\r\n\r\n return [(this.$animate.leave(wrapper.element)).then(() => wrapper.scope.$destroy())];\r\n }\r\n}","export default function ScrollBuffer(elementRoutines, bufferSize, startIndex) {\r\n const buffer = Object.create(Array.prototype);\r\n\r\n angular.extend(buffer, {\r\n size: bufferSize,\r\n\r\n reset(startIndex) {\r\n buffer.remove(0, buffer.length);\r\n buffer.eof = false;\r\n buffer.bof = false;\r\n buffer.first = startIndex;\r\n buffer.next = startIndex;\r\n buffer.minIndex = startIndex;\r\n buffer.maxIndex = startIndex;\r\n buffer.minIndexUser = null;\r\n buffer.maxIndexUser = null;\r\n },\r\n\r\n append(items) {\r\n items.forEach((item) => {\r\n ++buffer.next;\r\n buffer.insert('append', item);\r\n });\r\n buffer.maxIndex = buffer.eof ? buffer.next - 1 : Math.max(buffer.next - 1, buffer.maxIndex);\r\n },\r\n\r\n prepend(items, immutableTop) {\r\n items.reverse().forEach((item) => {\r\n if (immutableTop) {\r\n ++buffer.next;\r\n }\r\n else {\r\n --buffer.first;\r\n }\r\n buffer.insert('prepend', item);\r\n });\r\n buffer.minIndex = buffer.bof ? buffer.minIndex = buffer.first : Math.min(buffer.first, buffer.minIndex);\r\n },\r\n\r\n /**\r\n * inserts wrapped element in the buffer\r\n * the first argument is either operation keyword (see below) or a number for operation 'insert'\r\n * for insert the number is the index for the buffer element the new one have to be inserted after\r\n * operations: 'append', 'prepend', 'insert', 'remove', 'update', 'none'\r\n */\r\n insert(operation, item, isTop) {\r\n const wrapper = {\r\n item: item\r\n };\r\n\r\n if (operation % 1 === 0) {// it is an insert\r\n wrapper.op = 'insert';\r\n buffer.splice(operation, 0, wrapper);\r\n if(isTop) {\r\n buffer.first--;\r\n }\r\n else {\r\n buffer.next++;\r\n }\r\n } else {\r\n wrapper.op = operation;\r\n switch (operation) {\r\n case 'append':\r\n buffer.push(wrapper);\r\n break;\r\n case 'prepend':\r\n buffer.unshift(wrapper);\r\n break;\r\n }\r\n }\r\n },\r\n\r\n // removes elements from buffer\r\n remove(arg1, arg2) {\r\n if (angular.isNumber(arg1)) {\r\n // removes items from arg1 (including) through arg2 (excluding)\r\n for (let i = arg1; i < arg2; i++) {\r\n elementRoutines.removeElement(buffer[i]);\r\n }\r\n return buffer.splice(arg1, arg2 - arg1);\r\n }\r\n // removes single item(wrapper) from the buffer\r\n buffer.splice(buffer.indexOf(arg1), 1);\r\n if(arg1._op === 'isTop' && buffer.first === this.getAbsMinIndex()) {\r\n this.incrementMinIndex();\r\n }\r\n else {\r\n this.decrementMaxIndex();\r\n }\r\n if(arg1._op === 'isTop') {\r\n buffer.first++;\r\n }\r\n else {\r\n buffer.next--;\r\n }\r\n if(!buffer.length) {\r\n buffer.first = 1;\r\n buffer.next = 1;\r\n }\r\n\r\n return elementRoutines.removeElementAnimated(arg1);\r\n },\r\n\r\n incrementMinIndex() {\r\n if(buffer.minIndexUser !== null) {\r\n if(buffer.minIndex > buffer.minIndexUser) {\r\n buffer.minIndexUser++;\r\n return;\r\n }\r\n if(buffer.minIndex === buffer.minIndexUser) {\r\n buffer.minIndexUser++;\r\n }\r\n }\r\n buffer.minIndex++;\r\n },\r\n\r\n decrementMaxIndex() {\r\n if(buffer.maxIndexUser !== null && buffer.maxIndex <= buffer.maxIndexUser) {\r\n buffer.maxIndexUser--;\r\n }\r\n buffer.maxIndex--;\r\n },\r\n\r\n getAbsMinIndex() {\r\n if(buffer.minIndexUser !== null) {\r\n return Math.min(buffer.minIndexUser, buffer.minIndex);\r\n }\r\n return buffer.minIndex;\r\n },\r\n\r\n getAbsMaxIndex() {\r\n if(buffer.maxIndexUser !== null) {\r\n return Math.max(buffer.maxIndexUser, buffer.maxIndex);\r\n }\r\n return buffer.maxIndex;\r\n },\r\n\r\n effectiveHeight(elements) {\r\n if (!elements.length) {\r\n return 0;\r\n }\r\n let top = Number.MAX_VALUE;\r\n let bottom = Number.NEGATIVE_INFINITY;\r\n elements.forEach((wrapper) => {\r\n if (wrapper.element[0].offsetParent) {\r\n // element style is not display:none\r\n top = Math.min(top, wrapper.element.offset().top);\r\n bottom = Math.max(bottom, wrapper.element.offset().top + wrapper.element.outerHeight(true));\r\n }\r\n });\r\n return Math.max(0, bottom - top);\r\n },\r\n\r\n getItems() {\r\n return buffer.filter(item => item.op === 'none');\r\n },\r\n\r\n getFirstItem() {\r\n const list = buffer.getItems();\r\n if (!list.length) {\r\n return null;\r\n }\r\n return list[0].item;\r\n },\r\n\r\n getLastItem() {\r\n const list = buffer.getItems();\r\n if (!list.length) {\r\n return null;\r\n }\r\n return list[list.length - 1].item;\r\n }\r\n\r\n });\r\n\r\n buffer.reset(startIndex);\r\n\r\n return buffer;\r\n}\r\n","// Can't just extend the Array, due to Babel does not support built-in classes extending\r\n// This solution was taken from https://stackoverflow.com/questions/46897414/es6-class-extends-array-workaround-for-es5-babel-transpile\r\nclass CacheProto {\r\n add(item) {\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index === item.scope.$index) {\r\n this[i].height = item.element.outerHeight();\r\n return;\r\n }\r\n }\r\n this.push({\r\n index: item.scope.$index,\r\n height: item.element.outerHeight()\r\n });\r\n this.sort((a, b) => ((a.index < b.index) ? -1 : ((a.index > b.index) ? 1 : 0)));\r\n }\r\n\r\n remove(argument, _isTop) {\r\n const index = argument % 1 === 0 ? argument : argument.scope.$index;\r\n const isTop = argument % 1 === 0 ? _isTop : argument._op === 'isTop';\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index === index) {\r\n this.splice(i, 1);\r\n break;\r\n }\r\n }\r\n if(!isTop) {\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index > index) {\r\n this[i].index--;\r\n }\r\n }\r\n }\r\n }\r\n\r\n clear() {\r\n this.length = 0;\r\n }\r\n}\r\n\r\nfunction Cache() {\r\n const instance = [];\r\n instance.push.apply(instance, arguments);\r\n Object.setPrototypeOf(instance, Cache.prototype);\r\n return instance;\r\n}\r\nCache.prototype = Object.create(Array.prototype);\r\nObject.getOwnPropertyNames(CacheProto.prototype).forEach(methodName =>\r\n Cache.prototype[methodName] = CacheProto.prototype[methodName]\r\n);\r\n\r\nfunction generateElement(template) {\r\n if(template.nodeType !== Node.ELEMENT_NODE) {\r\n throw new Error('ui-scroll directive requires an Element node for templating the view');\r\n }\r\n let element;\r\n switch (template.tagName.toLowerCase()) {\r\n case 'dl':\r\n throw new Error(`ui-scroll directive does not support <${template.tagName}> as a repeating tag: ${template.outerHTML}`);\r\n case 'tr':\r\n let table = angular.element('');\r\n element = table.find('tr');\r\n break;\r\n case 'li':\r\n element = angular.element('');\r\n break;\r\n default:\r\n element = angular.element('');\r\n }\r\n return element;\r\n}\r\n\r\nclass Padding {\r\n constructor(template) {\r\n this.element = generateElement(template);\r\n this.cache = new Cache();\r\n }\r\n\r\n height() {\r\n return this.element.height.apply(this.element, arguments);\r\n }\r\n}\r\n\r\nexport default Padding;","import Padding from './padding';\r\n\r\nexport default function Viewport(elementRoutines, buffer, element, viewportController, $rootScope, padding) {\r\n let topPadding = null;\r\n let bottomPadding = null;\r\n const viewport = viewportController && viewportController.viewport ? viewportController.viewport : angular.element(window);\r\n const container = viewportController && viewportController.container ? viewportController.container : undefined;\r\n const scope = viewportController && viewportController.scope ? viewportController.scope : $rootScope;\r\n\r\n viewport.css({\r\n 'overflow-anchor': 'none',\r\n 'overflow-y': 'auto',\r\n 'display': 'block'\r\n });\r\n\r\n function bufferPadding() {\r\n return viewport.outerHeight() * padding; // some extra space to initiate preload\r\n }\r\n\r\n angular.extend(viewport, {\r\n getScope() {\r\n return scope;\r\n },\r\n\r\n createPaddingElements(template) {\r\n topPadding = new Padding(template);\r\n bottomPadding = new Padding(template);\r\n element.before(topPadding.element);\r\n element.after(bottomPadding.element);\r\n topPadding.height(0);\r\n bottomPadding.height(0);\r\n },\r\n\r\n applyContainerStyle() {\r\n if (!container) {\r\n return true;\r\n }\r\n if(container !== viewport) {\r\n viewport.css('height', window.getComputedStyle(container[0]).height);\r\n }\r\n return viewport.height() > 0;\r\n },\r\n\r\n bottomDataPos() {\r\n let scrollHeight = viewport[0].scrollHeight;\r\n scrollHeight = scrollHeight != null ? scrollHeight : viewport[0].document.documentElement.scrollHeight;\r\n return scrollHeight - bottomPadding.height();\r\n },\r\n\r\n topDataPos() {\r\n return topPadding.height();\r\n },\r\n\r\n bottomVisiblePos() {\r\n return viewport.scrollTop() + viewport.outerHeight();\r\n },\r\n\r\n topVisiblePos() {\r\n return viewport.scrollTop();\r\n },\r\n\r\n insertElement(e, sibling) {\r\n return elementRoutines.insertElement(e, sibling || topPadding.element);\r\n },\r\n\r\n insertElementAnimated(e, sibling) {\r\n return elementRoutines.insertElementAnimated(e, sibling || topPadding.element);\r\n },\r\n\r\n shouldLoadBottom() {\r\n return !buffer.eof && viewport.bottomDataPos() < viewport.bottomVisiblePos() + bufferPadding();\r\n },\r\n\r\n clipBottom() {\r\n // clip the invisible items off the bottom\r\n let overage = 0;\r\n let overageHeight = 0;\r\n let itemHeight = 0;\r\n let emptySpaceHeight = viewport.bottomDataPos() - viewport.bottomVisiblePos() - bufferPadding();\r\n\r\n for (let i = buffer.length - 1; i >= 0; i--) {\r\n itemHeight = buffer[i].element.outerHeight(true);\r\n if (overageHeight + itemHeight > emptySpaceHeight) {\r\n break;\r\n }\r\n bottomPadding.cache.add(buffer[i]);\r\n overageHeight += itemHeight;\r\n overage++;\r\n }\r\n\r\n if (overage > 0) {\r\n buffer.eof = false;\r\n buffer.remove(buffer.length - overage, buffer.length);\r\n buffer.next -= overage;\r\n viewport.adjustPaddings();\r\n }\r\n },\r\n\r\n shouldLoadTop() {\r\n return !buffer.bof && (viewport.topDataPos() > viewport.topVisiblePos() - bufferPadding());\r\n },\r\n\r\n clipTop() {\r\n // clip the invisible items off the top\r\n let overage = 0;\r\n let overageHeight = 0;\r\n let itemHeight = 0;\r\n let emptySpaceHeight = viewport.topVisiblePos() - viewport.topDataPos() - bufferPadding();\r\n\r\n for (let i = 0; i < buffer.length; i++) {\r\n itemHeight = buffer[i].element.outerHeight(true);\r\n if (overageHeight + itemHeight > emptySpaceHeight) {\r\n break;\r\n }\r\n topPadding.cache.add(buffer[i]);\r\n overageHeight += itemHeight;\r\n overage++;\r\n }\r\n\r\n if (overage > 0) {\r\n // we need to adjust top padding element before items are removed from top\r\n // to avoid strange behaviour of scroll bar during remove top items when we are at the very bottom\r\n topPadding.height(topPadding.height() + overageHeight);\r\n buffer.bof = false;\r\n buffer.remove(0, overage);\r\n buffer.first += overage;\r\n }\r\n },\r\n\r\n adjustPaddings() {\r\n if (!buffer.length) {\r\n return;\r\n }\r\n\r\n // precise heights calculation based on items that are in buffer or that were in buffer once\r\n const visibleItemsHeight = buffer.reduce((summ, item) => summ + item.element.outerHeight(true), 0);\r\n\r\n let topPaddingHeight = 0, topCount = 0;\r\n topPadding.cache.forEach(item => {\r\n if(item.index < buffer.first) {\r\n topPaddingHeight += item.height;\r\n topCount++;\r\n }\r\n });\r\n\r\n let bottomPaddingHeight = 0, bottomCount = 0;\r\n bottomPadding.cache.forEach(item => {\r\n if(item.index >= buffer.next) {\r\n bottomPaddingHeight += item.height;\r\n bottomCount++;\r\n }\r\n });\r\n\r\n const totalHeight = visibleItemsHeight + topPaddingHeight + bottomPaddingHeight;\r\n const averageItemHeight = totalHeight / (topCount + bottomCount + buffer.length);\r\n\r\n // average heights calculation, items that have never been reached\r\n let adjustTopPadding = buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser;\r\n let adjustBottomPadding = buffer.maxIndexUser !== null && buffer.maxIndex < buffer.maxIndexUser;\r\n let topPaddingHeightAdd = adjustTopPadding ? (buffer.minIndex - buffer.minIndexUser) * averageItemHeight : 0;\r\n let bottomPaddingHeightAdd = adjustBottomPadding ? (buffer.maxIndexUser - buffer.maxIndex) * averageItemHeight : 0;\r\n\r\n // paddings combine adjustment\r\n topPadding.height(topPaddingHeight + topPaddingHeightAdd);\r\n bottomPadding.height(bottomPaddingHeight + bottomPaddingHeightAdd);\r\n },\r\n\r\n onAfterMinIndexSet(topPaddingHeightOld) {\r\n // additional scrollTop adjustment in case of datasource.minIndex external set\r\n if (buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser) {\r\n let diff = topPadding.height() - topPaddingHeightOld;\r\n viewport.scrollTop(viewport.scrollTop() + diff);\r\n while((diff -= viewport.scrollTop()) > 0) {\r\n bottomPadding.height(bottomPadding.height() + diff);\r\n viewport.scrollTop(viewport.scrollTop() + diff);\r\n }\r\n }\r\n },\r\n\r\n onAfterPrepend(updates) {\r\n if (!updates.prepended.length) {\r\n return;\r\n }\r\n const height = buffer.effectiveHeight(updates.prepended);\r\n const paddingHeight = topPadding.height() - height;\r\n if (paddingHeight >= 0) {\r\n topPadding.height(paddingHeight);\r\n return;\r\n }\r\n const position = viewport.scrollTop();\r\n const newPosition = position - paddingHeight;\r\n viewport.synthetic = { previous: position, next: newPosition };\r\n topPadding.height(0);\r\n viewport.scrollTop(newPosition);\r\n },\r\n\r\n resetTopPadding() {\r\n topPadding.height(0);\r\n topPadding.cache.clear();\r\n },\r\n\r\n resetBottomPadding() {\r\n bottomPadding.height(0);\r\n bottomPadding.cache.clear();\r\n },\r\n\r\n removeCacheItem(item, isTop) {\r\n topPadding.cache.remove(item, isTop);\r\n bottomPadding.cache.remove(item, isTop);\r\n },\r\n\r\n removeItem(item) {\r\n this.removeCacheItem(item);\r\n return buffer.remove(item);\r\n }\r\n });\r\n\r\n return viewport;\r\n}\r\n","class Adapter {\r\n\r\n constructor($scope, $parse, $attr, viewport, buffer, doAdjust, reload) {\r\n this.$parse = $parse;\r\n this.$attr = $attr;\r\n this.viewport = viewport;\r\n this.buffer = buffer;\r\n\r\n this.doAdjust = doAdjust;\r\n this.reload = reload;\r\n\r\n this.isLoading = false;\r\n this.disabled = false;\r\n\r\n const viewportScope = viewport.getScope();\r\n this.startScope = viewportScope.$parent ? viewportScope : $scope;\r\n\r\n this.publicContext = {};\r\n this.assignAdapter($attr.adapter);\r\n this.generatePublicContext();\r\n }\r\n\r\n assignAdapter(adapterAttr) {\r\n if (!adapterAttr || !(adapterAttr = adapterAttr.replace(/^\\s+|\\s+$/gm, ''))) {\r\n return;\r\n }\r\n let adapterOnScope;\r\n\r\n try {\r\n this.$parse(adapterAttr).assign(this.startScope, {});\r\n adapterOnScope = this.$parse(adapterAttr)(this.startScope);\r\n }\r\n catch (error) {\r\n error.message = `Angular ui-scroll Adapter assignment exception.\\n` +\r\n `Can't parse \"${adapterAttr}\" expression.\\n` +\r\n error.message;\r\n throw error;\r\n }\r\n\r\n angular.extend(adapterOnScope, this.publicContext);\r\n this.publicContext = adapterOnScope;\r\n }\r\n\r\n generatePublicContext() {\r\n // these methods will be accessible out of ui-scroll via user defined adapter\r\n const publicMethods = ['reload', 'applyUpdates', 'append', 'prepend', 'isBOF', 'isEOF', 'isEmpty'];\r\n for (let i = publicMethods.length - 1; i >= 0; i--) {\r\n this.publicContext[publicMethods[i]] = this[publicMethods[i]].bind(this);\r\n }\r\n\r\n // these read-only props will be accessible out of ui-scroll via user defined adapter\r\n const publicProps = ['isLoading', 'topVisible', 'topVisibleElement', 'topVisibleScope', 'bottomVisible', 'bottomVisibleElement', 'bottomVisibleScope'];\r\n for (let i = publicProps.length - 1; i >= 0; i--) {\r\n let property, attr = this.$attr[publicProps[i]];\r\n Object.defineProperty(this, publicProps[i], {\r\n get: () => property,\r\n set: (value) => {\r\n property = value;\r\n this.publicContext[publicProps[i]] = value;\r\n if (attr) {\r\n this.$parse(attr).assign(this.startScope, value);\r\n }\r\n }\r\n });\r\n }\r\n\r\n // read-only immediately calculated public properties\r\n const publicPropsImmediate = ['bufferFirst', 'bufferLast', 'bufferLength'];\r\n for (let i = publicPropsImmediate.length - 1; i >= 0; i--) {\r\n Object.defineProperty(this.publicContext, publicPropsImmediate[i], {\r\n get: () => this[publicPropsImmediate[i]]\r\n });\r\n }\r\n\r\n // non-read-only public property\r\n Object.defineProperty(this.publicContext, 'disabled', {\r\n get: () => this.disabled,\r\n set: (value) => (!(this.disabled = value)) ? this.doAdjust() : null\r\n });\r\n }\r\n\r\n loading(value) {\r\n this.isLoading = value;\r\n }\r\n\r\n isBOF() {\r\n return this.buffer.bof;\r\n }\r\n\r\n isEOF() {\r\n return this.buffer.eof;\r\n }\r\n\r\n isEmpty() {\r\n return !this.buffer.length;\r\n }\r\n\r\n get bufferLength() {\r\n return this.buffer.getItems().length;\r\n }\r\n\r\n get bufferFirst() {\r\n return this.buffer.getFirstItem();\r\n }\r\n\r\n get bufferLast() {\r\n return this.buffer.getLastItem();\r\n }\r\n\r\n append(newItems) {\r\n this.buffer.append(newItems);\r\n this.doAdjust();\r\n this.viewport.clipTop();\r\n this.viewport.clipBottom();\r\n }\r\n\r\n prepend(newItems, options = {}) {\r\n this.buffer.prepend(newItems, options.immutableTop);\r\n this.doAdjust();\r\n this.viewport.clipTop();\r\n this.viewport.clipBottom();\r\n }\r\n\r\n applyUpdates(arg1, arg2, arg3) {\r\n if (typeof arg1 === 'function') {\r\n this.applyUpdatesFunc(arg1, arg2);\r\n } else {\r\n this.applyUpdatesIndex(arg1, arg2, arg3);\r\n }\r\n this.doAdjust();\r\n }\r\n\r\n applyUpdatesFunc(cb, options = {}) {\r\n this.buffer.slice(0).forEach((wrapper) => {\r\n // we need to do it on the buffer clone, because buffer content\r\n // may change as we iterate through\r\n this.applyUpdate(wrapper, cb(wrapper.item, wrapper.scope, wrapper.element), options);\r\n });\r\n }\r\n\r\n applyUpdatesIndex(index, newItems, options = {}) {\r\n if (index % 1 !== 0) {\r\n throw new Error('applyUpdates - ' + index + ' is not a valid index (should be an integer)');\r\n }\r\n const _index = index - this.buffer.first;\r\n\r\n // apply updates only within buffer\r\n if (_index >= 0 && _index < this.buffer.length) {\r\n this.applyUpdate(this.buffer[_index], newItems, options);\r\n }\r\n // out-of-buffer case: deletion may affect Paddings\r\n else if(index >= this.buffer.getAbsMinIndex() && index <= this.buffer.getAbsMaxIndex()) {\r\n if(angular.isArray(newItems) && !newItems.length) {\r\n this.viewport.removeCacheItem(index, !options.immutableTop && index === this.buffer.minIndex);\r\n if (!options.immutableTop && index === this.buffer.getAbsMinIndex()) {\r\n this.buffer.incrementMinIndex();\r\n }\r\n else {\r\n this.buffer.decrementMaxIndex();\r\n }\r\n }\r\n }\r\n }\r\n\r\n applyUpdate(wrapper, newItems, options = {}) {\r\n if (!angular.isArray(newItems)) {\r\n return;\r\n }\r\n let position = this.buffer.indexOf(wrapper);\r\n if (!newItems.reverse().some(newItem => newItem === wrapper.item)) {\r\n wrapper.op = 'remove';\r\n if (!options.immutableTop && position === 0 && !newItems.length) {\r\n wrapper._op = 'isTop'; // to catch \"first\" edge case on remove\r\n }\r\n }\r\n newItems.forEach((newItem) => {\r\n if (newItem === wrapper.item) {\r\n position--;\r\n } else {\r\n // 3 parameter (isTop) is to catch \"first\" edge case on insert\r\n this.buffer.insert(position + 1, newItem, !options.immutableTop && position === -1);\r\n }\r\n });\r\n }\r\n\r\n calculateProperties() {\r\n let rowTop = null, topHeight = 0;\r\n let topDone = false, bottomDone = false;\r\n const length = this.buffer.length;\r\n\r\n for (let i = 0; i < length; i++) {\r\n const item = this.buffer[i];\r\n const itemTop = item.element.offset().top;\r\n\r\n if (rowTop !== itemTop) { // a new row condition\r\n const itemHeight = item.element.outerHeight(true);\r\n const top = this.viewport.topDataPos() + topHeight + itemHeight;\r\n\r\n if (!topDone && top > this.viewport.topVisiblePos()) {\r\n topDone = true;\r\n this['topVisible'] = item.item;\r\n this['topVisibleElement'] = item.element;\r\n this['topVisibleScope'] = item.scope;\r\n }\r\n if (!bottomDone && (top >= this.viewport.bottomVisiblePos() || (i === length - 1 && this.isEOF()))) {\r\n bottomDone = true;\r\n this['bottomVisible'] = item.item;\r\n this['bottomVisibleElement'] = item.element;\r\n this['bottomVisibleScope'] = item.scope;\r\n }\r\n topHeight += itemHeight;\r\n }\r\n rowTop = itemTop;\r\n\r\n if (topDone && bottomDone) {\r\n break;\r\n }\r\n }\r\n }\r\n\r\n}\r\n\r\nexport default Adapter;\r\n","import JQLiteExtras from './modules/jqLiteExtras';\nimport ElementRoutines from './modules/elementRoutines.js';\nimport ScrollBuffer from './modules/buffer.js';\nimport Viewport from './modules/viewport.js';\nimport Adapter from './modules/adapter.js';\n\nangular.module('ui.scroll', [])\n\n .constant('JQLiteExtras', JQLiteExtras)\n .run(['JQLiteExtras', (JQLiteExtras) => {\n const elt = angular.element;\n !(window.jQuery && elt.fn && elt.fn.jquery) ? (new JQLiteExtras()).registerFor(elt) : null;\n ElementRoutines.addCSSRules();\n }])\n\n .directive('uiScrollViewport', function () {\n return {\n restrict: 'A',\n controller: [\n '$scope',\n '$element',\n function (scope, element) {\n this.container = element;\n this.viewport = element;\n this.scope = scope;\n\n angular.forEach(element.children(), child => {\n if (child.tagName.toLowerCase() === 'tbody') {\n this.viewport = angular.element(child);\n }\n });\n\n return this;\n }\n ]\n };\n })\n\n .directive('uiScroll', [\n '$log',\n '$injector',\n '$rootScope',\n '$timeout',\n '$interval',\n '$q',\n '$parse',\n function (console, $injector, $rootScope, $timeout, $interval, $q, $parse) {\n\n return {\n require: ['?^uiScrollViewport'],\n restrict: 'A',\n transclude: 'element',\n priority: 1000,\n terminal: true,\n link: link\n };\n\n function link($scope, element, $attr, controllers, linker) {\n const match = $attr.uiScroll.match(/^\\s*(\\w+)\\s+in\\s+([(\\w|\\$)\\.]+)\\s*$/);\n if (!match) {\n throw new Error('Expected uiScroll in form of \\'_item_ in _datasource_\\' but got \\'' + $attr.uiScroll + '\\'');\n }\n\n function parseNumber(value, defaultValue, isFloat) {\n if (!isFloat) {\n value = value === null ? defaultValue : Math.floor(value);\n }\n return isNaN(value) ? defaultValue : value;\n }\n\n function parseNumericAttr(value, defaultValue, isFloat) {\n const result = $parse(value)($scope);\n return parseNumber(result, defaultValue, isFloat);\n }\n\n function parseBooleanAttr(value, defaultValue) {\n const result = $parse(value)($scope);\n return typeof result === 'boolean' ? result : defaultValue;\n }\n\n const BUFFER_MIN = 3;\n const BUFFER_DEFAULT = 10;\n const PADDING_MIN = 0.3;\n const PADDING_DEFAULT = 0.5;\n const HANDLE_INERTIA_DEFAULT = true;\n const START_INDEX_DEFAULT = 1;\n const MAX_VIEWPORT_DELAY = 500;\n const VIEWPORT_POLLING_INTERVAL = 50;\n\n let datasource = null;\n const itemName = match[1];\n const datasourceName = match[2];\n const viewportController = controllers[0];\n const bufferSize = Math.max(BUFFER_MIN, parseNumericAttr($attr.bufferSize, BUFFER_DEFAULT));\n const padding = Math.max(PADDING_MIN, parseNumericAttr($attr.padding, PADDING_DEFAULT, true));\n const handleInertia = parseBooleanAttr($attr.handleInertia, HANDLE_INERTIA_DEFAULT);\n let startIndex = parseNumericAttr($attr.startIndex, START_INDEX_DEFAULT);\n let ridActual = 0; // current data revision id\n let pending = [];\n\n const elementRoutines = new ElementRoutines($injector, $q);\n const buffer = new ScrollBuffer(elementRoutines, bufferSize, startIndex);\n const viewport = new Viewport(elementRoutines, buffer, element, viewportController, $rootScope, padding);\n const adapter = new Adapter($scope, $parse, $attr, viewport, buffer, doAdjust, reload);\n\n if (viewportController) {\n viewportController.adapter = adapter;\n }\n\n const isDatasourceValid = () =>\n Object.prototype.toString.call(datasource) === '[object Object]' && typeof datasource.get === 'function';\n\n datasource = $parse(datasourceName)($scope); // try to get datasource on scope\n if (!isDatasourceValid()) {\n datasource = $injector.get(datasourceName); // try to inject datasource as service\n if (!isDatasourceValid()) {\n throw new Error(datasourceName + ' is not a valid datasource');\n }\n }\n\n let onRenderHandlers = [];\n function onRenderHandlersRunner() {\n onRenderHandlers.forEach(handler => handler.run());\n onRenderHandlers = [];\n }\n function persistDatasourceIndex(datasource, propName) {\n let getter;\n // need to postpone min/maxIndexUser processing if the view is empty\n if(angular.isNumber(datasource[propName])) {\n getter = datasource[propName];\n if(angular.isNumber(getter)) {\n onRenderHandlers = onRenderHandlers.filter(handler => handler.id !== propName);\n onRenderHandlers.push({\n id: propName,\n run: () => datasource[propName] = getter\n });\n }\n }\n }\n\n function defineDatasourceIndex(datasource, propName, propUserName) {\n const descriptor = Object.getOwnPropertyDescriptor(datasource, propName);\n if (descriptor && (descriptor.set || descriptor.get)) {\n return;\n }\n let getter;\n persistDatasourceIndex(datasource, propName);\n Object.defineProperty(datasource, propName, {\n set: (value) => {\n getter = value;\n if(pending.length && !buffer.length) {\n persistDatasourceIndex(datasource, propName);\n return;\n }\n buffer[propUserName] = value;\n const topPaddingHeightOld = viewport.topDataPos();\n viewport.adjustPaddings();\n if (propName === 'minIndex') {\n viewport.onAfterMinIndexSet(topPaddingHeightOld);\n }\n },\n get: () => getter\n });\n }\n\n defineDatasourceIndex(datasource, 'minIndex', 'minIndexUser');\n defineDatasourceIndex(datasource, 'maxIndex', 'maxIndexUser');\n\n const fetchNext = (datasource.get.length !== 2) ?\n (success) => datasource.get(buffer.next, bufferSize, success) :\n (success) => {\n datasource.get({\n index: buffer.next,\n append: buffer.length ? buffer[buffer.length - 1].item : void 0,\n count: bufferSize\n }, success);\n };\n\n const fetchPrevious = (datasource.get.length !== 2) ?\n (success) => datasource.get(buffer.first - bufferSize, bufferSize, success) :\n (success) => {\n datasource.get({\n index: buffer.first - bufferSize,\n prepend: buffer.length ? buffer[0].item : void 0,\n count: bufferSize\n }, success);\n };\n\n const initialize = () => {\n let tryCount = 0;\n if(!viewport.applyContainerStyle()) {\n const timer = $interval(() => {\n tryCount++;\n if(viewport.applyContainerStyle()) {\n $interval.cancel(timer);\n doAdjust();\n }\n if(tryCount * VIEWPORT_POLLING_INTERVAL >= MAX_VIEWPORT_DELAY) {\n $interval.cancel(timer);\n throw Error(`ui-scroll directive requires a viewport with non-zero height in ${MAX_VIEWPORT_DELAY}ms`);\n }\n }, VIEWPORT_POLLING_INTERVAL);\n }\n else {\n doAdjust();\n }\n };\n\n /**\n * Build padding elements\n *\n * Calling linker is the only way I found to get access to the tag name of the template\n * to prevent the directive scope from pollution a new scope is created and destroyed\n * right after the builder creation is completed\n */\n linker((clone, scope) => {\n viewport.createPaddingElements(clone[0]);\n // we do not include the clone in the DOM. It means that the nested directives will not\n // be able to reach the parent directives, but in this case it is intentional because we\n // created the clone to access the template tag name\n scope.$destroy();\n clone.remove();\n });\n\n $scope.$on('$destroy', () => {\n unbindEvents();\n viewport.off('mousewheel', wheelHandler);\n });\n\n viewport.on('mousewheel', wheelHandler);\n\n initialize();\n\n /* Private function definitions */\n\n function isInvalid(rid) {\n return (rid && rid !== ridActual) || $scope.$$destroyed;\n }\n\n function bindEvents() {\n viewport.on('resize', resizeAndScrollHandler);\n viewport.on('scroll', resizeAndScrollHandler);\n }\n\n function unbindEvents() {\n viewport.off('resize', resizeAndScrollHandler);\n viewport.off('scroll', resizeAndScrollHandler);\n }\n\n function reload() {\n unbindEvents();\n viewport.resetTopPadding();\n viewport.resetBottomPadding();\n if (arguments.length) {\n startIndex = parseNumber(arguments[0], START_INDEX_DEFAULT, false);\n }\n buffer.reset(startIndex);\n persistDatasourceIndex(datasource, 'minIndex');\n persistDatasourceIndex(datasource, 'maxIndex');\n doAdjust();\n }\n\n function isElementVisible(wrapper) {\n return wrapper.element.height() && wrapper.element[0].offsetParent;\n }\n\n function visibilityWatcher(wrapper) {\n if (isElementVisible(wrapper)) {\n buffer.forEach((item) => {\n if (typeof item.unregisterVisibilityWatcher === 'function') {\n item.unregisterVisibilityWatcher();\n delete item.unregisterVisibilityWatcher;\n }\n });\n if (!pending.length) {\n $timeout(() => doAdjust());\n }\n }\n }\n\n function insertWrapperContent(wrapper, insertAfter) {\n createElement(wrapper, insertAfter, viewport.insertElement);\n if (!isElementVisible(wrapper)) {\n wrapper.unregisterVisibilityWatcher = wrapper.scope.$watch(() => visibilityWatcher(wrapper));\n }\n elementRoutines.hideElement(wrapper); // hide inserted elements before data binding\n }\n\n function createElement(wrapper, insertAfter, insertElement) {\n let promises = null;\n const sibling = (insertAfter > 0) ? buffer[insertAfter - 1].element : undefined;\n linker((clone, scope) => {\n promises = insertElement(clone, sibling);\n wrapper.element = clone;\n wrapper.scope = scope;\n scope[itemName] = wrapper.item;\n });\n // ui-scroll-grid apply\n if (adapter.transform) {\n const tdInitializer = wrapper.scope.uiScrollTdInitializer;\n if (tdInitializer && tdInitializer.linking) {\n adapter.transform(wrapper.scope, wrapper.element);\n } else {\n wrapper.scope.uiScrollTdInitializer = {\n onLink: () => adapter.transform(wrapper.scope, wrapper.element),\n scope: wrapper.scope\n };\n }\n }\n return promises;\n }\n\n function updateDOM() {\n let promises = [];\n const toBePrepended = [];\n const toBeRemoved = [];\n const inserted = [];\n\n buffer.forEach((wrapper, i) => {\n switch (wrapper.op) {\n case 'prepend':\n toBePrepended.unshift(wrapper);\n break;\n case 'append':\n insertWrapperContent(wrapper, i);\n wrapper.op = 'none';\n inserted.push(wrapper);\n break;\n case 'insert':\n promises = promises.concat(createElement(wrapper, i, viewport.insertElementAnimated));\n wrapper.op = 'none';\n inserted.push(wrapper);\n break;\n case 'remove':\n toBeRemoved.push(wrapper);\n }\n });\n\n toBeRemoved.forEach((wrapper) => promises = promises.concat(viewport.removeItem(wrapper)));\n\n if (toBePrepended.length)\n toBePrepended.forEach((wrapper) => {\n insertWrapperContent(wrapper);\n wrapper.op = 'none';\n });\n\n buffer.forEach((item, i) => item.scope.$index = buffer.first + i);\n\n return {\n prepended: toBePrepended,\n removed: toBeRemoved,\n inserted: inserted,\n animated: promises\n };\n\n }\n\n function updatePaddings(rid, updates) {\n // schedule another doAdjust after animation completion\n if (updates.animated.length) {\n $q.all(updates.animated).then(() => {\n viewport.adjustPaddings();\n doAdjust(rid);\n });\n } else {\n viewport.adjustPaddings();\n }\n }\n\n function enqueueFetch(rid, updates) {\n if (viewport.shouldLoadBottom()) {\n if (!updates || buffer.effectiveHeight(updates.inserted) > 0) {\n // this means that at least one item appended in the last batch has height > 0\n if (pending.push(true) === 1) {\n adapter.loading(true);\n fetch(rid);\n }\n }\n } else if (viewport.shouldLoadTop()) {\n if ((!updates || buffer.effectiveHeight(updates.prepended) > 0) || pending[0]) {\n // this means that at least one item appended in the last batch has height > 0\n // pending[0] = true means that previous fetch was appending. We need to force at least one prepend\n // BTW there will always be at least 1 element in the pending array because bottom is fetched first\n if (pending.push(false) === 1) {\n adapter.loading(true);\n fetch(rid);\n }\n }\n }\n }\n\n function processUpdates() {\n const updates = updateDOM();\n\n // We need the item bindings to be processed before we can do adjustments\n !$scope.$$phase && !$rootScope.$$phase && $scope.$digest();\n\n updates.inserted.forEach(w => elementRoutines.showElement(w));\n updates.prepended.forEach(w => elementRoutines.showElement(w));\n return updates;\n }\n\n function doAdjust(rid) {\n if (!rid) { // dismiss pending requests\n pending = [];\n rid = ++ridActual;\n }\n\n const updates = processUpdates();\n\n if (isInvalid(rid)) {\n return;\n }\n\n updatePaddings(rid, updates);\n enqueueFetch(rid);\n\n if (!pending.length) {\n adapter.calculateProperties();\n }\n }\n\n function doAdjustAfterFetch(rid) {\n const updates = processUpdates();\n\n viewport.onAfterPrepend(updates);\n\n if (isInvalid(rid)) {\n return;\n }\n\n updatePaddings(rid, updates);\n onRenderHandlersRunner();\n enqueueFetch(rid, updates);\n pending.shift();\n\n if (pending.length)\n fetch(rid);\n else {\n adapter.loading(false);\n bindEvents();\n adapter.calculateProperties();\n }\n }\n\n function fetch(rid) {\n if (pending[0]) {// scrolling down\n if (buffer.length && !viewport.shouldLoadBottom()) {\n doAdjustAfterFetch(rid);\n } else {\n fetchNext((result) => {\n if (isInvalid(rid)) {\n return;\n }\n\n if (result.length < bufferSize) {\n buffer.eof = true;\n }\n\n if (result.length > 0) {\n viewport.clipTop();\n buffer.append(result);\n }\n\n doAdjustAfterFetch(rid);\n });\n }\n } else { // scrolling up\n if (buffer.length && !viewport.shouldLoadTop()) {\n doAdjustAfterFetch(rid);\n } else {\n fetchPrevious((result) => {\n if (isInvalid(rid)) {\n return;\n }\n\n if (result.length < bufferSize) {\n buffer.bof = true;\n // log 'bof is reached'\n }\n\n if (result.length > 0) {\n if (buffer.length) {\n viewport.clipBottom();\n }\n buffer.prepend(result);\n }\n\n doAdjustAfterFetch(rid);\n });\n }\n }\n }\n\n function fixInertia() {\n if (!viewport.synthetic) {\n return;\n }\n const oldPosition = viewport.synthetic.previous;\n const newPosition = viewport.synthetic.next;\n if (viewport.scrollTop() !== newPosition) {\n requestAnimationFrame(() => {\n const position = viewport.scrollTop();\n const diff = oldPosition - position;\n if (diff > 0) { // inertia over synthetic\n viewport.scrollTop(newPosition - diff);\n } else {\n viewport.scrollTop(newPosition);\n }\n viewport.synthetic = null;\n });\n return true;\n }\n viewport.synthetic = null;\n }\n\n function resizeAndScrollHandler() {\n if (handleInertia && fixInertia()) {\n return;\n }\n if (!$rootScope.$$phase && !adapter.isLoading && !adapter.disabled) {\n\n enqueueFetch(ridActual);\n\n if (pending.length) {\n unbindEvents();\n } else {\n adapter.calculateProperties();\n !$scope.$$phase && $scope.$digest();\n }\n }\n }\n\n function wheelHandler(event) {\n if (!adapter.disabled) {\n const scrollTop = viewport[0].scrollTop;\n const yMax = viewport[0].scrollHeight - viewport[0].clientHeight;\n\n if ((scrollTop === 0 && !buffer.bof) || (scrollTop === yMax && !buffer.eof)) {\n event.preventDefault();\n }\n }\n }\n }\n\n }\n ]);\n"],"sourceRoot":""}
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\t\tif(!__webpack_require__.o(exports, name)) {\n \t\t\tObject.defineProperty(exports, name, { enumerable: true, get: getter });\n \t\t}\n \t};\n\n \t// define __esModule on exports\n \t__webpack_require__.r = function(exports) {\n \t\tif(typeof Symbol !== 'undefined' && Symbol.toStringTag) {\n \t\t\tObject.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });\n \t\t}\n \t\tObject.defineProperty(exports, '__esModule', { value: true });\n \t};\n\n \t// create a fake namespace object\n \t// mode & 1: value is a module id, require it\n \t// mode & 2: merge all properties of value into the ns\n \t// mode & 4: return value when already ns object\n \t// mode & 8|1: behave like require\n \t__webpack_require__.t = function(value, mode) {\n \t\tif(mode & 1) value = __webpack_require__(value);\n \t\tif(mode & 8) return value;\n \t\tif((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;\n \t\tvar ns = Object.create(null);\n \t\t__webpack_require__.r(ns);\n \t\tObject.defineProperty(ns, 'default', { enumerable: true, value: value });\n \t\tif(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));\n \t\treturn ns;\n \t};\n\n \t// getDefaultExport function for compatibility with non-harmony modules\n \t__webpack_require__.n = function(module) {\n \t\tvar getter = module && module.__esModule ?\n \t\t\tfunction getDefault() { return module['default']; } :\n \t\t\tfunction getModuleExports() { return module; };\n \t\t__webpack_require__.d(getter, 'a', getter);\n \t\treturn getter;\n \t};\n\n \t// Object.prototype.hasOwnProperty.call\n \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(__webpack_require__.s = 1);\n","/*!\r\n globals: angular, window\r\n List of used element methods available in JQuery but not in JQuery Lite\r\n element.before(elem)\r\n element.height()\r\n element.outerHeight(true)\r\n element.height(value) = only for Top/Bottom padding elements\r\n element.scrollTop()\r\n element.scrollTop(value)\r\n */\r\n\r\nexport default class JQLiteExtras {\r\n\r\n registerFor(element) {\r\n let convertToPx, css, getStyle, isWindow;\r\n // angular implementation blows up if elem is the window\r\n css = angular.element.prototype.css;\r\n\r\n element.prototype.css = function (name, value) {\r\n let self = this;\r\n let elem = self[0];\r\n if (!(!elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style)) {\r\n return css.call(self, name, value);\r\n }\r\n };\r\n\r\n // as defined in angularjs v1.0.5\r\n isWindow = (obj) => obj && obj.document && obj.location && obj.alert && obj.setInterval;\r\n\r\n function scrollTo(self, direction, value) {\r\n let elem = self[0];\r\n let [method, prop, preserve] = {\r\n top: [\r\n 'scrollTop',\r\n 'pageYOffset',\r\n 'scrollLeft'\r\n ],\r\n left: [\r\n 'scrollLeft',\r\n 'pageXOffset',\r\n 'scrollTop'\r\n ]\r\n }[direction];\r\n\r\n const isValueDefined = typeof value !== 'undefined';\r\n if (isWindow(elem)) {\r\n if (isValueDefined) {\r\n return elem.scrollTo(self[preserve].call(self), value);\r\n }\r\n return (prop in elem) ? elem[prop] : elem.document.documentElement[method];\r\n } else {\r\n if (isValueDefined) {\r\n elem[method] = value;\r\n }\r\n return elem[method];\r\n }\r\n }\r\n\r\n if (window.getComputedStyle) {\r\n getStyle = (elem) => window.getComputedStyle(elem, null);\r\n convertToPx = (elem, value) => parseFloat(value);\r\n } else {\r\n getStyle = (elem) => elem.currentStyle;\r\n convertToPx = (elem, value) => {\r\n let left, result, rs, rsLeft, style;\r\n let core_pnum = /[+-]?(?:\\d*\\.|)\\d+(?:[eE][+-]?\\d+|)/.source;\r\n let rnumnonpx = new RegExp('^(' + core_pnum + ')(?!px)[a-z%]+$', 'i');\r\n\r\n if (!rnumnonpx.test(value)) {\r\n return parseFloat(value);\r\n }\r\n\r\n // ported from JQuery\r\n style = elem.style;\r\n left = style.left;\r\n rs = elem.runtimeStyle;\r\n rsLeft = rs && rs.left;\r\n if (rs) {\r\n rs.left = style.left;\r\n }\r\n // put in the new values to get a computed style out\r\n style.left = value;\r\n result = style.pixelLeft;\r\n style.left = left;\r\n if (rsLeft) {\r\n rs.left = rsLeft;\r\n }\r\n return result;\r\n };\r\n }\r\n\r\n function getMeasurements(elem, measure) {\r\n let base, borderA, borderB, computedMarginA, computedMarginB, computedStyle, dirA, dirB, marginA, marginB, paddingA, paddingB;\r\n\r\n if (isWindow(elem)) {\r\n base = document.documentElement[{height: 'clientHeight', width: 'clientWidth'}[measure]];\r\n\r\n return {\r\n base: base,\r\n padding: 0,\r\n border: 0,\r\n margin: 0\r\n };\r\n }\r\n\r\n // Start with offset property\r\n [\r\n base,\r\n dirA,\r\n dirB\r\n ] = {\r\n width: [\r\n elem.offsetWidth,\r\n 'Left',\r\n 'Right'\r\n ],\r\n height: [\r\n elem.offsetHeight,\r\n 'Top',\r\n 'Bottom'\r\n ]\r\n }[measure];\r\n\r\n computedStyle = getStyle(elem);\r\n paddingA = convertToPx(elem, computedStyle['padding' + dirA]) || 0;\r\n paddingB = convertToPx(elem, computedStyle['padding' + dirB]) || 0;\r\n borderA = convertToPx(elem, computedStyle['border' + dirA + 'Width']) || 0;\r\n borderB = convertToPx(elem, computedStyle['border' + dirB + 'Width']) || 0;\r\n computedMarginA = computedStyle['margin' + dirA];\r\n computedMarginB = computedStyle['margin' + dirB];\r\n\r\n // I do not care for width for now, so this hack is irrelevant\r\n // if ( !supportsPercentMargin )\r\n // computedMarginA = hackPercentMargin( elem, computedStyle, computedMarginA )\r\n // computedMarginB = hackPercentMargin( elem, computedStyle, computedMarginB )\r\n marginA = convertToPx(elem, computedMarginA) || 0;\r\n marginB = convertToPx(elem, computedMarginB) || 0;\r\n\r\n return {\r\n base: base,\r\n padding: paddingA + paddingB,\r\n border: borderA + borderB,\r\n margin: marginA + marginB\r\n };\r\n }\r\n\r\n function getWidthHeight(elem, direction, measure) {\r\n let computedStyle, result;\r\n\r\n let measurements = getMeasurements(elem, direction);\r\n\r\n if (measurements.base > 0) {\r\n return {\r\n base: measurements.base - measurements.padding - measurements.border,\r\n outer: measurements.base,\r\n outerfull: measurements.base + measurements.margin\r\n }[measure];\r\n }\r\n\r\n // Fall back to computed then uncomputed css if necessary\r\n computedStyle = getStyle(elem);\r\n result = computedStyle[direction];\r\n\r\n if (result < 0 || result === null) {\r\n result = elem.style[direction] || 0;\r\n }\r\n\r\n // Normalize \"\", auto, and prepare for extra\r\n result = parseFloat(result) || 0;\r\n\r\n return {\r\n base: result - measurements.padding - measurements.border,\r\n outer: result,\r\n outerfull: result + measurements.padding + measurements.border + measurements.margin\r\n }[measure];\r\n }\r\n\r\n // define missing methods\r\n return angular.forEach({\r\n before(newElem) {\r\n var children, elem, i, j, parent, ref, self;\r\n self = this;\r\n elem = self[0];\r\n parent = self.parent();\r\n children = parent.contents();\r\n if (children[0] === elem) {\r\n return parent.prepend(newElem);\r\n } else {\r\n for (i = j = 1, ref = children.length - 1; 1 <= ref ? j <= ref : j >= ref; i = 1 <= ref ? ++j : --j) {\r\n if (children[i] === elem) {\r\n angular.element(children[i - 1]).after(newElem);\r\n return;\r\n }\r\n }\r\n throw new Error('invalid DOM structure ' + elem.outerHTML);\r\n }\r\n },\r\n height (value){\r\n var self;\r\n self = this;\r\n if (typeof value !== 'undefined') {\r\n if (angular.isNumber(value)) {\r\n value = value + 'px';\r\n }\r\n return css.call(self, 'height', value);\r\n } else {\r\n return getWidthHeight(this[0], 'height', 'base');\r\n }\r\n },\r\n outerHeight(option) {\r\n return getWidthHeight(this[0], 'height', option ? 'outerfull' : 'outer');\r\n },\r\n outerWidth(option) {\r\n return getWidthHeight(this[0], 'width', option ? 'outerfull' : 'outer');\r\n },\r\n\r\n /*\r\n The offset setter method is not implemented\r\n */\r\n offset(value) {\r\n let docElem, win;\r\n let self = this;\r\n let box = {\r\n top: 0,\r\n left: 0\r\n };\r\n let elem = self[0];\r\n let doc = elem && elem.ownerDocument;\r\n\r\n if (arguments.length) {\r\n if (value === undefined) {\r\n return self;\r\n }\r\n // TODO: implement setter\r\n throw new Error('offset setter method is not implemented');\r\n }\r\n\r\n if (!doc) {\r\n return;\r\n }\r\n\r\n docElem = doc.documentElement;\r\n\r\n // TODO: Make sure it's not a disconnected DOM node\r\n\r\n if (elem.getBoundingClientRect != null) {\r\n box = elem.getBoundingClientRect();\r\n }\r\n\r\n win = doc.defaultView || doc.parentWindow;\r\n\r\n return {\r\n top: box.top + (win.pageYOffset || docElem.scrollTop) - (docElem.clientTop || 0),\r\n left: box.left + (win.pageXOffset || docElem.scrollLeft) - (docElem.clientLeft || 0)\r\n };\r\n },\r\n scrollTop(value) {\r\n return scrollTo(this, 'top', value);\r\n },\r\n scrollLeft(value) {\r\n return scrollTo(this, 'left', value);\r\n }\r\n }, (value, key) => {\r\n if (!element.prototype[key]) {\r\n return element.prototype[key] = value;\r\n }\r\n });\r\n }\r\n\r\n}\r\n","const hideClassToken = 'ng-ui-scroll-hide';\r\n\r\nexport default class ElementRoutines {\r\n\r\n static addCSSRules() {\r\n const selector = '.' + hideClassToken;\r\n const rules = 'display: none';\r\n const sheet = document.styleSheets[0];\r\n let index;\r\n try {\r\n index = sheet.cssRules.length;\r\n } catch (err) {\r\n index = 0;\r\n }\r\n if('insertRule' in sheet) {\r\n sheet.insertRule(selector + '{' + rules + '}', index);\r\n }\r\n else if('addRule' in sheet) {\r\n sheet.addRule(selector, rules, index);\r\n }\r\n }\r\n\r\n constructor($injector, $q) {\r\n this.$animate = ($injector.has && $injector.has('$animate')) ? $injector.get('$animate') : null;\r\n this.isAngularVersionLessThen1_3 = angular.version.major === 1 && angular.version.minor < 3;\r\n this.$q = $q;\r\n }\r\n\r\n hideElement(wrapper) {\r\n wrapper.element.addClass(hideClassToken);\r\n }\r\n\r\n showElement(wrapper) {\r\n wrapper.element.removeClass(hideClassToken);\r\n }\r\n\r\n insertElement(newElement, previousElement) {\r\n previousElement.after(newElement);\r\n return [];\r\n }\r\n\r\n removeElement(wrapper) {\r\n wrapper.element.remove();\r\n wrapper.scope.$destroy();\r\n return [];\r\n }\r\n\r\n insertElementAnimated(newElement, previousElement) {\r\n if (!this.$animate) {\r\n return this.insertElement(newElement, previousElement);\r\n }\r\n\r\n if (this.isAngularVersionLessThen1_3) {\r\n const deferred = this.$q.defer();\r\n // no need for parent - previous element is never null\r\n this.$animate.enter(newElement, null, previousElement, () => deferred.resolve());\r\n\r\n return [deferred.promise];\r\n }\r\n\r\n // no need for parent - previous element is never null\r\n return [this.$animate.enter(newElement, null, previousElement)];\r\n }\r\n\r\n removeElementAnimated(wrapper) {\r\n if (!this.$animate) {\r\n return this.removeElement(wrapper);\r\n }\r\n\r\n if (this.isAngularVersionLessThen1_3) {\r\n const deferred = this.$q.defer();\r\n this.$animate.leave(wrapper.element, () => {\r\n wrapper.scope.$destroy();\r\n return deferred.resolve();\r\n });\r\n\r\n return [deferred.promise];\r\n }\r\n\r\n return [(this.$animate.leave(wrapper.element)).then(() => wrapper.scope.$destroy())];\r\n }\r\n}","export const OPERATIONS = {\r\n PREPEND: 'prepend',\r\n APPEND: 'append',\r\n INSERT: 'insert',\r\n REMOVE: 'remove',\r\n NONE: 'none'\r\n};\r\n","import { OPERATIONS } from './utils';\r\n\r\nexport default function ScrollBuffer(elementRoutines, bufferSize, startIndex) {\r\n const buffer = Object.create(Array.prototype);\r\n\r\n angular.extend(buffer, {\r\n size: bufferSize,\r\n\r\n reset(startIndex) {\r\n buffer.remove(0, buffer.length);\r\n buffer.eof = false;\r\n buffer.bof = false;\r\n buffer.first = startIndex;\r\n buffer.next = startIndex;\r\n buffer.minIndex = startIndex;\r\n buffer.maxIndex = startIndex;\r\n buffer.minIndexUser = null;\r\n buffer.maxIndexUser = null;\r\n },\r\n\r\n append(items) {\r\n items.forEach((item) => {\r\n ++buffer.next;\r\n buffer.insert(OPERATIONS.APPEND, item);\r\n });\r\n buffer.maxIndex = buffer.eof ? buffer.next - 1 : Math.max(buffer.next - 1, buffer.maxIndex);\r\n },\r\n\r\n prepend(items, immutableTop) {\r\n items.reverse().forEach((item) => {\r\n if (immutableTop) {\r\n ++buffer.next;\r\n }\r\n else {\r\n --buffer.first;\r\n }\r\n buffer.insert(OPERATIONS.PREPEND, item);\r\n });\r\n buffer.minIndex = buffer.bof ? buffer.minIndex = buffer.first : Math.min(buffer.first, buffer.minIndex);\r\n },\r\n\r\n /**\r\n * inserts wrapped element in the buffer\r\n * the first argument is either operation keyword (see below) or a number for operation 'insert'\r\n * for insert the number is the index for the buffer element the new one have to be inserted after\r\n * operations: 'append', 'prepend', 'insert', 'remove', 'none'\r\n */\r\n insert(operation, item, shiftTop) {\r\n const wrapper = {\r\n item: item\r\n };\r\n\r\n if (operation % 1 === 0) { // it is an insert\r\n wrapper.op = OPERATIONS.INSERT;\r\n buffer.splice(operation, 0, wrapper);\r\n if (shiftTop) {\r\n buffer.first--;\r\n }\r\n else {\r\n buffer.next++;\r\n }\r\n } else {\r\n wrapper.op = operation;\r\n switch (operation) {\r\n case OPERATIONS.APPEND:\r\n buffer.push(wrapper);\r\n break;\r\n case OPERATIONS.PREPEND:\r\n buffer.unshift(wrapper);\r\n break;\r\n }\r\n }\r\n },\r\n\r\n // removes elements from buffer\r\n remove(arg1, arg2) {\r\n if (angular.isNumber(arg1)) {\r\n // removes items from arg1 (including) through arg2 (excluding)\r\n for (let i = arg1; i < arg2; i++) {\r\n elementRoutines.removeElement(buffer[i]);\r\n }\r\n return buffer.splice(arg1, arg2 - arg1);\r\n }\r\n // removes single item (wrapper) from the buffer\r\n buffer.splice(buffer.indexOf(arg1), 1);\r\n if (arg1.shiftTop && buffer.first === this.getAbsMinIndex()) {\r\n this.incrementMinIndex();\r\n }\r\n else {\r\n this.decrementMaxIndex();\r\n }\r\n if (arg1.shiftTop) {\r\n buffer.first++;\r\n }\r\n else {\r\n buffer.next--;\r\n }\r\n if (!buffer.length) {\r\n buffer.minIndex = Math.min(buffer.maxIndex, buffer.minIndex);\r\n }\r\n\r\n return elementRoutines.removeElementAnimated(arg1);\r\n },\r\n\r\n incrementMinIndex() {\r\n if (buffer.minIndexUser !== null) {\r\n if (buffer.minIndex > buffer.minIndexUser) {\r\n buffer.minIndexUser++;\r\n return;\r\n }\r\n if (buffer.minIndex === buffer.minIndexUser) {\r\n buffer.minIndexUser++;\r\n }\r\n }\r\n buffer.minIndex++;\r\n },\r\n\r\n decrementMaxIndex() {\r\n if (buffer.maxIndexUser !== null && buffer.maxIndex <= buffer.maxIndexUser) {\r\n buffer.maxIndexUser--;\r\n }\r\n buffer.maxIndex--;\r\n },\r\n\r\n getAbsMinIndex() {\r\n if (buffer.minIndexUser !== null) {\r\n return Math.min(buffer.minIndexUser, buffer.minIndex);\r\n }\r\n return buffer.minIndex;\r\n },\r\n\r\n getAbsMaxIndex() {\r\n if (buffer.maxIndexUser !== null) {\r\n return Math.max(buffer.maxIndexUser, buffer.maxIndex);\r\n }\r\n return buffer.maxIndex;\r\n },\r\n\r\n effectiveHeight(elements) {\r\n if (!elements.length) {\r\n return 0;\r\n }\r\n let top = Number.MAX_VALUE;\r\n let bottom = Number.NEGATIVE_INFINITY;\r\n elements.forEach((wrapper) => {\r\n if (wrapper.element[0].offsetParent) {\r\n // element style is not display:none\r\n top = Math.min(top, wrapper.element.offset().top);\r\n bottom = Math.max(bottom, wrapper.element.offset().top + wrapper.element.outerHeight(true));\r\n }\r\n });\r\n return Math.max(0, bottom - top);\r\n },\r\n\r\n getItems() {\r\n return buffer.filter(item => item.op === OPERATIONS.NONE);\r\n },\r\n\r\n getFirstItem() {\r\n const list = buffer.getItems();\r\n if (!list.length) {\r\n return null;\r\n }\r\n return list[0].item;\r\n },\r\n\r\n getLastItem() {\r\n const list = buffer.getItems();\r\n if (!list.length) {\r\n return null;\r\n }\r\n return list[list.length - 1].item;\r\n }\r\n\r\n });\r\n\r\n buffer.reset(startIndex);\r\n\r\n return buffer;\r\n}\r\n","// Can't just extend the Array, due to Babel does not support built-in classes extending\r\n// This solution was taken from https://stackoverflow.com/questions/46897414/es6-class-extends-array-workaround-for-es5-babel-transpile\r\nclass CacheProto {\r\n add(item) {\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index === item.scope.$index) {\r\n this[i].height = item.element.outerHeight();\r\n return;\r\n }\r\n }\r\n this.push({\r\n index: item.scope.$index,\r\n height: item.element.outerHeight()\r\n });\r\n this.sort((a, b) => ((a.index < b.index) ? -1 : ((a.index > b.index) ? 1 : 0)));\r\n }\r\n\r\n remove(argument, _shiftTop) {\r\n const index = argument % 1 === 0 ? argument : argument.scope.$index;\r\n const shiftTop = argument % 1 === 0 ? _shiftTop : argument.shiftTop;\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index === index) {\r\n this.splice(i, 1);\r\n break;\r\n }\r\n }\r\n if (!shiftTop) {\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index > index) {\r\n this[i].index--;\r\n }\r\n }\r\n }\r\n }\r\n\r\n clear() {\r\n this.length = 0;\r\n }\r\n}\r\n\r\nfunction Cache() {\r\n const instance = [];\r\n instance.push.apply(instance, arguments);\r\n Object.setPrototypeOf(instance, Cache.prototype);\r\n return instance;\r\n}\r\nCache.prototype = Object.create(Array.prototype);\r\nObject.getOwnPropertyNames(CacheProto.prototype).forEach(methodName =>\r\n Cache.prototype[methodName] = CacheProto.prototype[methodName]\r\n);\r\n\r\nfunction generateElement(template) {\r\n if (template.nodeType !== Node.ELEMENT_NODE) {\r\n throw new Error('ui-scroll directive requires an Element node for templating the view');\r\n }\r\n let element;\r\n switch (template.tagName.toLowerCase()) {\r\n case 'dl':\r\n throw new Error(`ui-scroll directive does not support <${template.tagName}> as a repeating tag: ${template.outerHTML}`);\r\n case 'tr':\r\n let table = angular.element('');\r\n element = table.find('tr');\r\n break;\r\n case 'li':\r\n element = angular.element('');\r\n break;\r\n default:\r\n element = angular.element('');\r\n }\r\n return element;\r\n}\r\n\r\nclass Padding {\r\n constructor(template) {\r\n this.element = generateElement(template);\r\n this.cache = new Cache();\r\n }\r\n\r\n height() {\r\n return this.element.height.apply(this.element, arguments);\r\n }\r\n}\r\n\r\nexport default Padding;","import Padding from './padding';\r\n\r\nexport default function Viewport(elementRoutines, buffer, element, viewportController, $rootScope, padding) {\r\n let topPadding = null;\r\n let bottomPadding = null;\r\n const viewport = viewportController && viewportController.viewport ? viewportController.viewport : angular.element(window);\r\n const container = viewportController && viewportController.container ? viewportController.container : undefined;\r\n const scope = viewportController && viewportController.scope ? viewportController.scope : $rootScope;\r\n\r\n viewport.css({\r\n 'overflow-anchor': 'none',\r\n 'overflow-y': 'auto',\r\n 'display': 'block'\r\n });\r\n\r\n function bufferPadding() {\r\n return viewport.outerHeight() * padding; // some extra space to initiate preload\r\n }\r\n\r\n angular.extend(viewport, {\r\n getScope() {\r\n return scope;\r\n },\r\n\r\n createPaddingElements(template) {\r\n topPadding = new Padding(template);\r\n bottomPadding = new Padding(template);\r\n element.before(topPadding.element);\r\n element.after(bottomPadding.element);\r\n topPadding.height(0);\r\n bottomPadding.height(0);\r\n },\r\n\r\n applyContainerStyle() {\r\n if (!container) {\r\n return true;\r\n }\r\n if (container !== viewport) {\r\n viewport.css('height', window.getComputedStyle(container[0]).height);\r\n }\r\n return viewport.height() > 0;\r\n },\r\n\r\n bottomDataPos() {\r\n let scrollHeight = viewport[0].scrollHeight;\r\n scrollHeight = scrollHeight != null ? scrollHeight : viewport[0].document.documentElement.scrollHeight;\r\n return scrollHeight - bottomPadding.height();\r\n },\r\n\r\n topDataPos() {\r\n return topPadding.height();\r\n },\r\n\r\n bottomVisiblePos() {\r\n return viewport.scrollTop() + viewport.outerHeight();\r\n },\r\n\r\n topVisiblePos() {\r\n return viewport.scrollTop();\r\n },\r\n\r\n insertElement(e, sibling) {\r\n return elementRoutines.insertElement(e, sibling || topPadding.element);\r\n },\r\n\r\n insertElementAnimated(e, sibling) {\r\n return elementRoutines.insertElementAnimated(e, sibling || topPadding.element);\r\n },\r\n\r\n shouldLoadBottom() {\r\n return !buffer.eof && viewport.bottomDataPos() < viewport.bottomVisiblePos() + bufferPadding();\r\n },\r\n\r\n clipBottom() {\r\n // clip the invisible items off the bottom\r\n let overage = 0;\r\n let overageHeight = 0;\r\n let itemHeight = 0;\r\n let emptySpaceHeight = viewport.bottomDataPos() - viewport.bottomVisiblePos() - bufferPadding();\r\n\r\n for (let i = buffer.length - 1; i >= 0; i--) {\r\n itemHeight = buffer[i].element.outerHeight(true);\r\n if (overageHeight + itemHeight > emptySpaceHeight) {\r\n break;\r\n }\r\n bottomPadding.cache.add(buffer[i]);\r\n overageHeight += itemHeight;\r\n overage++;\r\n }\r\n\r\n if (overage > 0) {\r\n buffer.eof = false;\r\n buffer.remove(buffer.length - overage, buffer.length);\r\n buffer.next -= overage;\r\n viewport.adjustPaddings();\r\n }\r\n },\r\n\r\n shouldLoadTop() {\r\n return !buffer.bof && (viewport.topDataPos() > viewport.topVisiblePos() - bufferPadding());\r\n },\r\n\r\n clipTop() {\r\n // clip the invisible items off the top\r\n let overage = 0;\r\n let overageHeight = 0;\r\n let itemHeight = 0;\r\n let emptySpaceHeight = viewport.topVisiblePos() - viewport.topDataPos() - bufferPadding();\r\n\r\n for (let i = 0; i < buffer.length; i++) {\r\n itemHeight = buffer[i].element.outerHeight(true);\r\n if (overageHeight + itemHeight > emptySpaceHeight) {\r\n break;\r\n }\r\n topPadding.cache.add(buffer[i]);\r\n overageHeight += itemHeight;\r\n overage++;\r\n }\r\n\r\n if (overage > 0) {\r\n // we need to adjust top padding element before items are removed from top\r\n // to avoid strange behaviour of scroll bar during remove top items when we are at the very bottom\r\n topPadding.height(topPadding.height() + overageHeight);\r\n buffer.bof = false;\r\n buffer.remove(0, overage);\r\n buffer.first += overage;\r\n }\r\n },\r\n\r\n adjustPaddings() {\r\n if (!buffer.length) {\r\n return;\r\n }\r\n\r\n // precise heights calculation based on items that are in buffer or that were in buffer once\r\n const visibleItemsHeight = buffer.reduce((summ, item) => summ + item.element.outerHeight(true), 0);\r\n\r\n let topPaddingHeight = 0, topCount = 0;\r\n topPadding.cache.forEach(item => {\r\n if (item.index < buffer.first) {\r\n topPaddingHeight += item.height;\r\n topCount++;\r\n }\r\n });\r\n\r\n let bottomPaddingHeight = 0, bottomCount = 0;\r\n bottomPadding.cache.forEach(item => {\r\n if (item.index >= buffer.next) {\r\n bottomPaddingHeight += item.height;\r\n bottomCount++;\r\n }\r\n });\r\n\r\n const totalHeight = visibleItemsHeight + topPaddingHeight + bottomPaddingHeight;\r\n const averageItemHeight = totalHeight / (topCount + bottomCount + buffer.length);\r\n\r\n // average heights calculation, items that have never been reached\r\n let adjustTopPadding = buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser;\r\n let adjustBottomPadding = buffer.maxIndexUser !== null && buffer.maxIndex < buffer.maxIndexUser;\r\n let topPaddingHeightAdd = adjustTopPadding ? (buffer.minIndex - buffer.minIndexUser) * averageItemHeight : 0;\r\n let bottomPaddingHeightAdd = adjustBottomPadding ? (buffer.maxIndexUser - buffer.maxIndex) * averageItemHeight : 0;\r\n\r\n // paddings combine adjustment\r\n topPadding.height(topPaddingHeight + topPaddingHeightAdd);\r\n bottomPadding.height(bottomPaddingHeight + bottomPaddingHeightAdd);\r\n },\r\n\r\n onAfterMinIndexSet(topPaddingHeightOld) {\r\n // additional scrollTop adjustment in case of datasource.minIndex external set\r\n if (buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser) {\r\n let diff = topPadding.height() - topPaddingHeightOld;\r\n viewport.scrollTop(viewport.scrollTop() + diff);\r\n while((diff -= viewport.scrollTop()) > 0) {\r\n bottomPadding.height(bottomPadding.height() + diff);\r\n viewport.scrollTop(viewport.scrollTop() + diff);\r\n }\r\n }\r\n },\r\n\r\n onAfterPrepend(updates) {\r\n if (!updates.prepended.length) {\r\n return;\r\n }\r\n const height = buffer.effectiveHeight(updates.prepended);\r\n const paddingHeight = topPadding.height() - height;\r\n if (paddingHeight >= 0) {\r\n topPadding.height(paddingHeight);\r\n return;\r\n }\r\n const position = viewport.scrollTop();\r\n const newPosition = position - paddingHeight;\r\n viewport.synthetic = { previous: position, next: newPosition };\r\n topPadding.height(0);\r\n viewport.scrollTop(newPosition);\r\n },\r\n\r\n resetTopPadding() {\r\n topPadding.height(0);\r\n topPadding.cache.clear();\r\n },\r\n\r\n resetBottomPadding() {\r\n bottomPadding.height(0);\r\n bottomPadding.cache.clear();\r\n },\r\n\r\n removeCacheItem(item, shiftTop) {\r\n topPadding.cache.remove(item, shiftTop);\r\n bottomPadding.cache.remove(item, shiftTop);\r\n },\r\n\r\n removeItem(item) {\r\n this.removeCacheItem(item);\r\n return buffer.remove(item);\r\n }\r\n });\r\n\r\n return viewport;\r\n}\r\n","import { OPERATIONS } from './utils';\r\n\r\nclass Adapter {\r\n\r\n constructor($scope, $parse, $attr, viewport, buffer, doAdjust, reload) {\r\n this.$parse = $parse;\r\n this.$attr = $attr;\r\n this.viewport = viewport;\r\n this.buffer = buffer;\r\n\r\n this.doAdjust = doAdjust;\r\n this.reload = reload;\r\n\r\n this.isLoading = false;\r\n this.disabled = false;\r\n\r\n const viewportScope = viewport.getScope();\r\n this.startScope = viewportScope.$parent ? viewportScope : $scope;\r\n\r\n this.publicContext = {};\r\n this.assignAdapter($attr.adapter);\r\n this.generatePublicContext();\r\n }\r\n\r\n assignAdapter(adapterAttr) {\r\n if (!adapterAttr || !(adapterAttr = adapterAttr.replace(/^\\s+|\\s+$/gm, ''))) {\r\n return;\r\n }\r\n let adapterOnScope;\r\n\r\n try {\r\n this.$parse(adapterAttr).assign(this.startScope, {});\r\n adapterOnScope = this.$parse(adapterAttr)(this.startScope);\r\n }\r\n catch (error) {\r\n error.message = `Angular ui-scroll Adapter assignment exception.\\n` +\r\n `Can't parse \"${adapterAttr}\" expression.\\n` +\r\n error.message;\r\n throw error;\r\n }\r\n\r\n angular.extend(adapterOnScope, this.publicContext);\r\n this.publicContext = adapterOnScope;\r\n }\r\n\r\n generatePublicContext() {\r\n // these methods will be accessible out of ui-scroll via user defined adapter\r\n const publicMethods = ['reload', 'applyUpdates', 'append', 'prepend', 'isBOF', 'isEOF', 'isEmpty'];\r\n for (let i = publicMethods.length - 1; i >= 0; i--) {\r\n this.publicContext[publicMethods[i]] = this[publicMethods[i]].bind(this);\r\n }\r\n\r\n // these read-only props will be accessible out of ui-scroll via user defined adapter\r\n const publicProps = ['isLoading', 'topVisible', 'topVisibleElement', 'topVisibleScope', 'bottomVisible', 'bottomVisibleElement', 'bottomVisibleScope'];\r\n for (let i = publicProps.length - 1; i >= 0; i--) {\r\n let property, attr = this.$attr[publicProps[i]];\r\n Object.defineProperty(this, publicProps[i], {\r\n get: () => property,\r\n set: (value) => {\r\n property = value;\r\n this.publicContext[publicProps[i]] = value;\r\n if (attr) {\r\n this.$parse(attr).assign(this.startScope, value);\r\n }\r\n }\r\n });\r\n }\r\n\r\n // read-only immediately calculated public properties\r\n const publicPropsImmediate = ['bufferFirst', 'bufferLast', 'bufferLength'];\r\n for (let i = publicPropsImmediate.length - 1; i >= 0; i--) {\r\n Object.defineProperty(this.publicContext, publicPropsImmediate[i], {\r\n get: () => this[publicPropsImmediate[i]]\r\n });\r\n }\r\n\r\n // non-read-only public property\r\n Object.defineProperty(this.publicContext, 'disabled', {\r\n get: () => this.disabled,\r\n set: (value) => (!(this.disabled = value)) ? this.doAdjust() : null\r\n });\r\n }\r\n\r\n loading(value) {\r\n this.isLoading = value;\r\n }\r\n\r\n isBOF() {\r\n return this.buffer.bof;\r\n }\r\n\r\n isEOF() {\r\n return this.buffer.eof;\r\n }\r\n\r\n isEmpty() {\r\n return !this.buffer.length;\r\n }\r\n\r\n get bufferLength() {\r\n return this.buffer.getItems().length;\r\n }\r\n\r\n get bufferFirst() {\r\n return this.buffer.getFirstItem();\r\n }\r\n\r\n get bufferLast() {\r\n return this.buffer.getLastItem();\r\n }\r\n\r\n append(newItems) {\r\n this.buffer.append(newItems);\r\n this.doAdjust();\r\n this.viewport.clipTop();\r\n this.viewport.clipBottom();\r\n }\r\n\r\n prepend(newItems, options = {}) {\r\n this.buffer.prepend(newItems, options.immutableTop);\r\n this.doAdjust();\r\n this.viewport.clipTop();\r\n this.viewport.clipBottom();\r\n }\r\n\r\n applyUpdates(arg1, arg2, arg3) {\r\n if (typeof arg1 === 'function') {\r\n this.applyUpdatesFunc(arg1, arg2);\r\n } else {\r\n this.applyUpdatesIndex(arg1, arg2, arg3);\r\n }\r\n this.doAdjust();\r\n }\r\n\r\n applyUpdatesFunc(cb, options = {}) {\r\n this.buffer.slice(0).forEach((wrapper) => {\r\n // we need to do it on the buffer clone, because buffer content\r\n // may change as we iterate through\r\n this.applyUpdate(wrapper, cb(wrapper.item, wrapper.scope, wrapper.element), options);\r\n });\r\n }\r\n\r\n applyUpdatesIndex(index, newItems, options = {}) {\r\n if (index % 1 !== 0) {\r\n throw new Error('applyUpdates - ' + index + ' is not a valid index (should be an integer)');\r\n }\r\n const _index = index - this.buffer.first;\r\n\r\n // apply updates only within buffer\r\n if (_index >= 0 && _index < this.buffer.length) {\r\n this.applyUpdate(this.buffer[_index], newItems, options);\r\n }\r\n // out-of-buffer case: deletion may affect Paddings\r\n else if(index >= this.buffer.getAbsMinIndex() && index <= this.buffer.getAbsMaxIndex()) {\r\n if(angular.isArray(newItems) && !newItems.length) {\r\n this.viewport.removeCacheItem(index, !options.immutableTop && index === this.buffer.minIndex);\r\n if (!options.immutableTop && index === this.buffer.getAbsMinIndex()) {\r\n this.buffer.incrementMinIndex();\r\n }\r\n else {\r\n this.buffer.decrementMaxIndex();\r\n }\r\n }\r\n }\r\n }\r\n\r\n applyUpdate(wrapper, newItems, options = {}) {\r\n if (!angular.isArray(newItems)) {\r\n return;\r\n }\r\n let position = this.buffer.indexOf(wrapper);\r\n if (!newItems.reverse().some(newItem => newItem === wrapper.item)) {\r\n wrapper.op = OPERATIONS.REMOVE;\r\n // try to catch \"first\" edge case on remove\r\n if (!options.immutableTop && !newItems.length) {\r\n // this is the first item, or the previous one's part of the \"shift-top\" group\r\n if (\r\n (position === 0 && this.buffer.bof) ||\r\n (position !== 0 && this.buffer[position - 1].shiftTop)\r\n ) {\r\n wrapper.shiftTop = true;\r\n }\r\n }\r\n }\r\n newItems.forEach((newItem) => {\r\n if (newItem === wrapper.item) {\r\n position--;\r\n } else {\r\n // 3 parameter (shiftTop) is to catch \"first\" edge case on insert\r\n this.buffer.insert(position + 1, newItem, !options.immutableTop && position === -1);\r\n }\r\n });\r\n }\r\n\r\n calculateProperties() {\r\n let rowTop = null, topHeight = 0;\r\n let topDone = false, bottomDone = false;\r\n const length = this.buffer.length;\r\n\r\n for (let i = 0; i < length; i++) {\r\n const item = this.buffer[i];\r\n const itemTop = item.element.offset().top;\r\n\r\n if (rowTop !== itemTop) { // a new row condition\r\n const itemHeight = item.element.outerHeight(true);\r\n const top = this.viewport.topDataPos() + topHeight + itemHeight;\r\n\r\n if (!topDone && top > this.viewport.topVisiblePos()) {\r\n topDone = true;\r\n this['topVisible'] = item.item;\r\n this['topVisibleElement'] = item.element;\r\n this['topVisibleScope'] = item.scope;\r\n }\r\n if (!bottomDone && (top >= this.viewport.bottomVisiblePos() || (i === length - 1 && this.isEOF()))) {\r\n bottomDone = true;\r\n this['bottomVisible'] = item.item;\r\n this['bottomVisibleElement'] = item.element;\r\n this['bottomVisibleScope'] = item.scope;\r\n }\r\n topHeight += itemHeight;\r\n }\r\n rowTop = itemTop;\r\n\r\n if (topDone && bottomDone) {\r\n break;\r\n }\r\n }\r\n }\r\n\r\n}\r\n\r\nexport default Adapter;\r\n","import JQLiteExtras from './modules/jqLiteExtras';\r\nimport ElementRoutines from './modules/elementRoutines.js';\r\nimport ScrollBuffer from './modules/buffer.js';\r\nimport Viewport from './modules/viewport.js';\r\nimport Adapter from './modules/adapter.js';\r\nimport { OPERATIONS } from './modules/utils';\r\n\r\nangular.module('ui.scroll', [])\r\n\r\n .constant('JQLiteExtras', JQLiteExtras)\r\n .run(['JQLiteExtras', (JQLiteExtras) => {\r\n const elt = angular.element;\r\n !(window.jQuery && elt.fn && elt.fn.jquery) ? (new JQLiteExtras()).registerFor(elt) : null;\r\n ElementRoutines.addCSSRules();\r\n }])\r\n\r\n .directive('uiScrollViewport', function () {\r\n return {\r\n restrict: 'A',\r\n controller: [\r\n '$scope',\r\n '$element',\r\n function (scope, element) {\r\n this.container = element;\r\n this.viewport = element;\r\n this.scope = scope;\r\n\r\n angular.forEach(element.children(), child => {\r\n if (child.tagName.toLowerCase() === 'tbody') {\r\n this.viewport = angular.element(child);\r\n }\r\n });\r\n\r\n return this;\r\n }\r\n ]\r\n };\r\n })\r\n\r\n .directive('uiScroll', [\r\n '$log',\r\n '$injector',\r\n '$rootScope',\r\n '$timeout',\r\n '$interval',\r\n '$q',\r\n '$parse',\r\n function (console, $injector, $rootScope, $timeout, $interval, $q, $parse) {\r\n\r\n return {\r\n require: ['?^uiScrollViewport'],\r\n restrict: 'A',\r\n transclude: 'element',\r\n priority: 1000,\r\n terminal: true,\r\n link: link\r\n };\r\n\r\n function link($scope, element, $attr, controllers, linker) {\r\n const match = $attr.uiScroll.match(/^\\s*(\\w+)\\s+in\\s+([(\\w|\\$)\\.]+)\\s*$/);\r\n if (!match) {\r\n throw new Error('Expected uiScroll in form of \\'_item_ in _datasource_\\' but got \\'' + $attr.uiScroll + '\\'');\r\n }\r\n\r\n function parseNumber(value, defaultValue, isFloat) {\r\n if (!isFloat) {\r\n value = value === null ? defaultValue : Math.floor(value);\r\n }\r\n return isNaN(value) ? defaultValue : value;\r\n }\r\n\r\n function parseNumericAttr(value, defaultValue, isFloat) {\r\n const result = $parse(value)($scope);\r\n return parseNumber(result, defaultValue, isFloat);\r\n }\r\n\r\n function parseBooleanAttr(value, defaultValue) {\r\n const result = $parse(value)($scope);\r\n return typeof result === 'boolean' ? result : defaultValue;\r\n }\r\n\r\n const BUFFER_MIN = 3;\r\n const BUFFER_DEFAULT = 10;\r\n const PADDING_MIN = 0.3;\r\n const PADDING_DEFAULT = 0.5;\r\n const HANDLE_INERTIA_DEFAULT = true;\r\n const START_INDEX_DEFAULT = 1;\r\n const MAX_VIEWPORT_DELAY = 500;\r\n const VIEWPORT_POLLING_INTERVAL = 50;\r\n\r\n let datasource = null;\r\n const itemName = match[1];\r\n const datasourceName = match[2];\r\n const viewportController = controllers[0];\r\n const bufferSize = Math.max(BUFFER_MIN, parseNumericAttr($attr.bufferSize, BUFFER_DEFAULT));\r\n const padding = Math.max(PADDING_MIN, parseNumericAttr($attr.padding, PADDING_DEFAULT, true));\r\n const handleInertia = parseBooleanAttr($attr.handleInertia, HANDLE_INERTIA_DEFAULT);\r\n let startIndex = parseNumericAttr($attr.startIndex, START_INDEX_DEFAULT);\r\n let ridActual = 0; // current data revision id\r\n let pending = [];\r\n\r\n const elementRoutines = new ElementRoutines($injector, $q);\r\n const buffer = new ScrollBuffer(elementRoutines, bufferSize, startIndex);\r\n const viewport = new Viewport(elementRoutines, buffer, element, viewportController, $rootScope, padding);\r\n const adapter = new Adapter($scope, $parse, $attr, viewport, buffer, doAdjust, reload);\r\n\r\n if (viewportController) {\r\n viewportController.adapter = adapter;\r\n }\r\n\r\n const isDatasourceValid = () =>\r\n Object.prototype.toString.call(datasource) === '[object Object]' && typeof datasource.get === 'function';\r\n\r\n datasource = $parse(datasourceName)($scope); // try to get datasource on scope\r\n if (!isDatasourceValid()) {\r\n datasource = $injector.get(datasourceName); // try to inject datasource as service\r\n if (!isDatasourceValid()) {\r\n throw new Error(datasourceName + ' is not a valid datasource');\r\n }\r\n }\r\n\r\n let onRenderHandlers = [];\r\n function onRenderHandlersRunner() {\r\n onRenderHandlers.forEach(handler => handler.run());\r\n onRenderHandlers = [];\r\n }\r\n function persistDatasourceIndex(datasource, propName) {\r\n let getter;\r\n // need to postpone min/maxIndexUser processing if the view is empty\r\n if(angular.isNumber(datasource[propName])) {\r\n getter = datasource[propName];\r\n if(angular.isNumber(getter)) {\r\n onRenderHandlers = onRenderHandlers.filter(handler => handler.id !== propName);\r\n onRenderHandlers.push({\r\n id: propName,\r\n run: () => datasource[propName] = getter\r\n });\r\n }\r\n }\r\n }\r\n\r\n function defineDatasourceIndex(datasource, propName, propUserName) {\r\n const descriptor = Object.getOwnPropertyDescriptor(datasource, propName);\r\n if (descriptor && (descriptor.set || descriptor.get)) {\r\n return;\r\n }\r\n let getter;\r\n persistDatasourceIndex(datasource, propName);\r\n Object.defineProperty(datasource, propName, {\r\n set: (value) => {\r\n getter = value;\r\n if(pending.length && !buffer.length) {\r\n persistDatasourceIndex(datasource, propName);\r\n return;\r\n }\r\n buffer[propUserName] = value;\r\n const topPaddingHeightOld = viewport.topDataPos();\r\n viewport.adjustPaddings();\r\n if (propName === 'minIndex') {\r\n viewport.onAfterMinIndexSet(topPaddingHeightOld);\r\n }\r\n },\r\n get: () => getter\r\n });\r\n }\r\n\r\n defineDatasourceIndex(datasource, 'minIndex', 'minIndexUser');\r\n defineDatasourceIndex(datasource, 'maxIndex', 'maxIndexUser');\r\n\r\n const fetchNext = (datasource.get.length !== 2) ?\r\n (success) => datasource.get(buffer.next, bufferSize, success) :\r\n (success) => {\r\n datasource.get({\r\n index: buffer.next,\r\n append: buffer.length ? buffer[buffer.length - 1].item : void 0,\r\n count: bufferSize\r\n }, success);\r\n };\r\n\r\n const fetchPrevious = (datasource.get.length !== 2) ?\r\n (success) => datasource.get(buffer.first - bufferSize, bufferSize, success) :\r\n (success) => {\r\n datasource.get({\r\n index: buffer.first - bufferSize,\r\n prepend: buffer.length ? buffer[0].item : void 0,\r\n count: bufferSize\r\n }, success);\r\n };\r\n\r\n const initialize = () => {\r\n let tryCount = 0;\r\n if(!viewport.applyContainerStyle()) {\r\n const timer = $interval(() => {\r\n tryCount++;\r\n if(viewport.applyContainerStyle()) {\r\n $interval.cancel(timer);\r\n doAdjust();\r\n }\r\n if(tryCount * VIEWPORT_POLLING_INTERVAL >= MAX_VIEWPORT_DELAY) {\r\n $interval.cancel(timer);\r\n throw Error(`ui-scroll directive requires a viewport with non-zero height in ${MAX_VIEWPORT_DELAY}ms`);\r\n }\r\n }, VIEWPORT_POLLING_INTERVAL);\r\n }\r\n else {\r\n doAdjust();\r\n }\r\n };\r\n\r\n /**\r\n * Build padding elements\r\n *\r\n * Calling linker is the only way I found to get access to the tag name of the template\r\n * to prevent the directive scope from pollution a new scope is created and destroyed\r\n * right after the builder creation is completed\r\n */\r\n linker((clone, scope) => {\r\n viewport.createPaddingElements(clone[0]);\r\n // we do not include the clone in the DOM. It means that the nested directives will not\r\n // be able to reach the parent directives, but in this case it is intentional because we\r\n // created the clone to access the template tag name\r\n scope.$destroy();\r\n clone.remove();\r\n });\r\n\r\n $scope.$on('$destroy', () => {\r\n unbindEvents();\r\n viewport.off('mousewheel', wheelHandler);\r\n });\r\n\r\n viewport.on('mousewheel', wheelHandler);\r\n\r\n initialize();\r\n\r\n /* Private function definitions */\r\n\r\n function isInvalid(rid) {\r\n return (rid && rid !== ridActual) || $scope.$$destroyed;\r\n }\r\n\r\n function bindEvents() {\r\n viewport.on('resize', resizeAndScrollHandler);\r\n viewport.on('scroll', resizeAndScrollHandler);\r\n }\r\n\r\n function unbindEvents() {\r\n viewport.off('resize', resizeAndScrollHandler);\r\n viewport.off('scroll', resizeAndScrollHandler);\r\n }\r\n\r\n function reload() {\r\n unbindEvents();\r\n viewport.resetTopPadding();\r\n viewport.resetBottomPadding();\r\n if (arguments.length) {\r\n startIndex = parseNumber(arguments[0], START_INDEX_DEFAULT, false);\r\n }\r\n buffer.reset(startIndex);\r\n persistDatasourceIndex(datasource, 'minIndex');\r\n persistDatasourceIndex(datasource, 'maxIndex');\r\n doAdjust();\r\n }\r\n\r\n function isElementVisible(wrapper) {\r\n return wrapper.element.height() && wrapper.element[0].offsetParent;\r\n }\r\n\r\n function visibilityWatcher(wrapper) {\r\n if (isElementVisible(wrapper)) {\r\n buffer.forEach((item) => {\r\n if (typeof item.unregisterVisibilityWatcher === 'function') {\r\n item.unregisterVisibilityWatcher();\r\n delete item.unregisterVisibilityWatcher;\r\n }\r\n });\r\n if (!pending.length) {\r\n $timeout(() => doAdjust());\r\n }\r\n }\r\n }\r\n\r\n function insertWrapperContent(wrapper, insertAfter) {\r\n createElement(wrapper, insertAfter, viewport.insertElement);\r\n if (!isElementVisible(wrapper)) {\r\n wrapper.unregisterVisibilityWatcher = wrapper.scope.$watch(() => visibilityWatcher(wrapper));\r\n }\r\n elementRoutines.hideElement(wrapper); // hide inserted elements before data binding\r\n }\r\n\r\n function createElement(wrapper, insertAfter, insertElement) {\r\n let promises = null;\r\n const sibling = (insertAfter > 0) ? buffer[insertAfter - 1].element : undefined;\r\n linker((clone, scope) => {\r\n promises = insertElement(clone, sibling);\r\n wrapper.element = clone;\r\n wrapper.scope = scope;\r\n scope[itemName] = wrapper.item;\r\n });\r\n // ui-scroll-grid apply\r\n if (adapter.transform) {\r\n const tdInitializer = wrapper.scope.uiScrollTdInitializer;\r\n if (tdInitializer && tdInitializer.linking) {\r\n adapter.transform(wrapper.scope, wrapper.element);\r\n } else {\r\n wrapper.scope.uiScrollTdInitializer = {\r\n onLink: () => adapter.transform(wrapper.scope, wrapper.element),\r\n scope: wrapper.scope\r\n };\r\n }\r\n }\r\n return promises;\r\n }\r\n\r\n function updateDOM() {\r\n let promises = [];\r\n const toBePrepended = [];\r\n const toBeRemoved = [];\r\n const inserted = [];\r\n\r\n buffer.forEach((wrapper, i) => {\r\n switch (wrapper.op) {\r\n case OPERATIONS.PREPEND:\r\n toBePrepended.unshift(wrapper);\r\n break;\r\n case OPERATIONS.APPEND:\r\n insertWrapperContent(wrapper, i);\r\n wrapper.op = OPERATIONS.NONE;\r\n inserted.push(wrapper);\r\n break;\r\n case OPERATIONS.INSERT:\r\n promises = promises.concat(createElement(wrapper, i, viewport.insertElementAnimated));\r\n wrapper.op = OPERATIONS.NONE;\r\n inserted.push(wrapper);\r\n break;\r\n case OPERATIONS.REMOVE:\r\n toBeRemoved.push(wrapper);\r\n }\r\n });\r\n\r\n toBeRemoved.forEach((wrapper) => promises = promises.concat(viewport.removeItem(wrapper)));\r\n\r\n if (toBePrepended.length)\r\n toBePrepended.forEach((wrapper) => {\r\n insertWrapperContent(wrapper);\r\n wrapper.op = OPERATIONS.NONE;\r\n });\r\n\r\n buffer.forEach((item, i) => item.scope.$index = buffer.first + i);\r\n\r\n return {\r\n prepended: toBePrepended,\r\n removed: toBeRemoved,\r\n inserted: inserted,\r\n animated: promises\r\n };\r\n\r\n }\r\n\r\n function updatePaddings(rid, updates) {\r\n // schedule another doAdjust after animation completion\r\n if (updates.animated.length) {\r\n $q.all(updates.animated).then(() => {\r\n viewport.adjustPaddings();\r\n doAdjust(rid);\r\n });\r\n } else {\r\n viewport.adjustPaddings();\r\n }\r\n }\r\n\r\n function enqueueFetch(rid, updates) {\r\n if (viewport.shouldLoadBottom()) {\r\n if (!updates || buffer.effectiveHeight(updates.inserted) > 0) {\r\n // this means that at least one item appended in the last batch has height > 0\r\n if (pending.push(true) === 1) {\r\n adapter.loading(true);\r\n fetch(rid);\r\n }\r\n }\r\n } else if (viewport.shouldLoadTop()) {\r\n if ((!updates || buffer.effectiveHeight(updates.prepended) > 0) || pending[0]) {\r\n // this means that at least one item appended in the last batch has height > 0\r\n // pending[0] = true means that previous fetch was appending. We need to force at least one prepend\r\n // BTW there will always be at least 1 element in the pending array because bottom is fetched first\r\n if (pending.push(false) === 1) {\r\n adapter.loading(true);\r\n fetch(rid);\r\n }\r\n }\r\n }\r\n }\r\n\r\n function processUpdates() {\r\n const updates = updateDOM();\r\n\r\n // We need the item bindings to be processed before we can do adjustments\r\n !$scope.$$phase && !$rootScope.$$phase && $scope.$digest();\r\n\r\n updates.inserted.forEach(w => elementRoutines.showElement(w));\r\n updates.prepended.forEach(w => elementRoutines.showElement(w));\r\n return updates;\r\n }\r\n\r\n function doAdjust(rid) {\r\n if (!rid) { // dismiss pending requests\r\n pending = [];\r\n rid = ++ridActual;\r\n }\r\n\r\n const updates = processUpdates();\r\n\r\n if (isInvalid(rid)) {\r\n return;\r\n }\r\n\r\n updatePaddings(rid, updates);\r\n enqueueFetch(rid);\r\n\r\n if (!pending.length) {\r\n adapter.calculateProperties();\r\n }\r\n }\r\n\r\n function doAdjustAfterFetch(rid) {\r\n const updates = processUpdates();\r\n\r\n viewport.onAfterPrepend(updates);\r\n\r\n if (isInvalid(rid)) {\r\n return;\r\n }\r\n\r\n updatePaddings(rid, updates);\r\n onRenderHandlersRunner();\r\n enqueueFetch(rid, updates);\r\n pending.shift();\r\n\r\n if (pending.length)\r\n fetch(rid);\r\n else {\r\n adapter.loading(false);\r\n bindEvents();\r\n adapter.calculateProperties();\r\n }\r\n }\r\n\r\n function fetch(rid) {\r\n if (pending[0]) {// scrolling down\r\n if (buffer.length && !viewport.shouldLoadBottom()) {\r\n doAdjustAfterFetch(rid);\r\n } else {\r\n fetchNext((result) => {\r\n if (isInvalid(rid)) {\r\n return;\r\n }\r\n\r\n if (result.length < bufferSize) {\r\n buffer.eof = true;\r\n }\r\n\r\n if (result.length > 0) {\r\n viewport.clipTop();\r\n buffer.append(result);\r\n }\r\n\r\n doAdjustAfterFetch(rid);\r\n });\r\n }\r\n } else { // scrolling up\r\n if (buffer.length && !viewport.shouldLoadTop()) {\r\n doAdjustAfterFetch(rid);\r\n } else {\r\n fetchPrevious((result) => {\r\n if (isInvalid(rid)) {\r\n return;\r\n }\r\n\r\n if (result.length < bufferSize) {\r\n buffer.bof = true;\r\n // log 'bof is reached'\r\n }\r\n\r\n if (result.length > 0) {\r\n if (buffer.length) {\r\n viewport.clipBottom();\r\n }\r\n buffer.prepend(result);\r\n }\r\n\r\n doAdjustAfterFetch(rid);\r\n });\r\n }\r\n }\r\n }\r\n\r\n function fixInertia() {\r\n if (!viewport.synthetic) {\r\n return;\r\n }\r\n const oldPosition = viewport.synthetic.previous;\r\n const newPosition = viewport.synthetic.next;\r\n if (viewport.scrollTop() !== newPosition) {\r\n requestAnimationFrame(() => {\r\n const position = viewport.scrollTop();\r\n const diff = oldPosition - position;\r\n if (diff > 0) { // inertia over synthetic\r\n viewport.scrollTop(newPosition - diff);\r\n } else {\r\n viewport.scrollTop(newPosition);\r\n }\r\n viewport.synthetic = null;\r\n });\r\n return true;\r\n }\r\n viewport.synthetic = null;\r\n }\r\n\r\n function resizeAndScrollHandler() {\r\n if (handleInertia && fixInertia()) {\r\n return;\r\n }\r\n if (!$rootScope.$$phase && !adapter.isLoading && !adapter.disabled) {\r\n\r\n enqueueFetch(ridActual);\r\n\r\n if (pending.length) {\r\n unbindEvents();\r\n } else {\r\n adapter.calculateProperties();\r\n !$scope.$$phase && $scope.$digest();\r\n }\r\n }\r\n }\r\n\r\n function wheelHandler(event) {\r\n if (!adapter.disabled) {\r\n const scrollTop = viewport[0].scrollTop;\r\n const yMax = viewport[0].scrollHeight - viewport[0].clientHeight;\r\n\r\n if ((scrollTop === 0 && !buffer.bof) || (scrollTop === yMax && !buffer.eof)) {\r\n event.preventDefault();\r\n }\r\n }\r\n }\r\n }\r\n\r\n }\r\n ]);\r\n"],"sourceRoot":""}
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 488f771..107c1b2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -822,6 +822,49 @@
"to-fast-properties": "^2.0.0"
}
},
+ "@nodelib/fs.scandir": {
+ "version": "2.1.3",
+ "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.3.tgz",
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+ "dev": true,
+ "requires": {
+ "@nodelib/fs.stat": "2.0.3",
+ "run-parallel": "^1.1.9"
+ }
+ },
+ "@nodelib/fs.stat": {
+ "version": "2.0.3",
+ "resolved": "https://registry.npmjs.org/@nodelib/fs.stat/-/fs.stat-2.0.3.tgz",
+ "integrity": "sha512-bQBFruR2TAwoevBEd/NWMoAAtNGzTRgdrqnYCc7dhzfoNvqPzLyqlEQnzZ3kVnNrSp25iyxE00/3h2fqGAGArA==",
+ "dev": true
+ },
+ "@nodelib/fs.walk": {
+ "version": "1.2.4",
+ "resolved": "https://registry.npmjs.org/@nodelib/fs.walk/-/fs.walk-1.2.4.tgz",
+ "integrity": "sha512-1V9XOY4rDW0rehzbrcqAmHnz8e7SKvX27gh8Gt2WgB0+pdzdiLV83p72kZPU+jvMbS1qU5mauP2iOvO8rhmurQ==",
+ "dev": true,
+ "requires": {
+ "@nodelib/fs.scandir": "2.1.3",
+ "fastq": "^1.6.0"
+ }
+ },
+ "@npmcli/move-file": {
+ "version": "1.0.1",
+ "resolved": "https://registry.npmjs.org/@npmcli/move-file/-/move-file-1.0.1.tgz",
+ "integrity": "sha512-Uv6h1sT+0DrblvIrolFtbvM1FgWm+/sy4B3pvLp67Zys+thcukzS5ekn7HsZFGpWP4Q3fYJCljbWQE/XivMRLw==",
+ "dev": true,
+ "requires": {
+ "mkdirp": "^1.0.4"
+ },
+ "dependencies": {
+ "mkdirp": {
+ "version": "1.0.4",
+ "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-1.0.4.tgz",
+ "integrity": "sha512-vVqVZQyf3WLx2Shd0qJ9xuvqgAyKPLAiqITEtqW0oIUjzo3PePDd6fW9iFz30ef7Ysp/oiWqbhszeGWW2T6Gzw==",
+ "dev": true
+ }
+ }
+ },
"@types/color-name": {
"version": "1.1.1",
"resolved": "https://registry.npmjs.org/@types/color-name/-/color-name-1.1.1.tgz",
@@ -845,6 +888,12 @@
"@types/node": "*"
}
},
+ "@types/json-schema": {
+ "version": "7.0.6",
+ "resolved": "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.6.tgz",
+ "integrity": "sha512-3c+yGKvVP5Y9TYBEibGNR+kLtijnj7mYrXRg+WpFb2X9xm04g/DXYkfg4hmzJQosc9snFNUPkbYIhu+KAm6jJw==",
+ "dev": true
+ },
"@types/minimatch": {
"version": "3.0.3",
"resolved": "https://registry.npmjs.org/@types/minimatch/-/minimatch-3.0.3.tgz",
@@ -858,178 +907,177 @@
"dev": true
},
"@webassemblyjs/ast": {
- "version": "1.8.5",
- "resolved": "https://registry.npmjs.org/@webassemblyjs/ast/-/ast-1.8.5.tgz",
- "integrity": "sha512-aJMfngIZ65+t71C3y2nBBg5FFG0Okt9m0XEgWZ7Ywgn1oMAT8cNwx00Uv1cQyHtidq0Xn94R4TAywO+LCQ+ZAQ==",
+ "version": "1.9.0",
+ "resolved": "https://registry.npmjs.org/@webassemblyjs/ast/-/ast-1.9.0.tgz",
+ "integrity": "sha512-C6wW5L+b7ogSDVqymbkkvuW9kruN//YisMED04xzeBBqjHa2FYnmvOlS6Xj68xWQRgWvI9cIglsjFowH/RJyEA==",
"dev": true,
"requires": {
- "@webassemblyjs/helper-module-context": "1.8.5",
- "@webassemblyjs/helper-wasm-bytecode": "1.8.5",
- "@webassemblyjs/wast-parser": "1.8.5"
+ "@webassemblyjs/helper-module-context": "1.9.0",
+ "@webassemblyjs/helper-wasm-bytecode": "1.9.0",
+ "@webassemblyjs/wast-parser": "1.9.0"
}
},
"@webassemblyjs/floating-point-hex-parser": {
- "version": "1.8.5",
- "resolved": "https://registry.npmjs.org/@webassemblyjs/floating-point-hex-parser/-/floating-point-hex-parser-1.8.5.tgz",
- "integrity": "sha512-9p+79WHru1oqBh9ewP9zW95E3XAo+90oth7S5Re3eQnECGq59ly1Ri5tsIipKGpiStHsUYmY3zMLqtk3gTcOtQ==",
+ "version": "1.9.0",
+ "resolved": "https://registry.npmjs.org/@webassemblyjs/floating-point-hex-parser/-/floating-point-hex-parser-1.9.0.tgz",
+ "integrity": "sha512-TG5qcFsS8QB4g4MhrxK5TqfdNe7Ey/7YL/xN+36rRjl/BlGE/NcBvJcqsRgCP6Z92mRE+7N50pRIi8SmKUbcQA==",
"dev": true
},
"@webassemblyjs/helper-api-error": {
- "version": "1.8.5",
- "resolved": "https://registry.npmjs.org/@webassemblyjs/helper-api-error/-/helper-api-error-1.8.5.tgz",
- "integrity": "sha512-Za/tnzsvnqdaSPOUXHyKJ2XI7PDX64kWtURyGiJJZKVEdFOsdKUCPTNEVFZq3zJ2R0G5wc2PZ5gvdTRFgm81zA==",
+ "version": "1.9.0",
+ "resolved": "https://registry.npmjs.org/@webassemblyjs/helper-api-error/-/helper-api-error-1.9.0.tgz",
+ "integrity": "sha512-NcMLjoFMXpsASZFxJ5h2HZRcEhDkvnNFOAKneP5RbKRzaWJN36NC4jqQHKwStIhGXu5mUWlUUk7ygdtrO8lbmw==",
"dev": true
},
"@webassemblyjs/helper-buffer": {
- "version": "1.8.5",
- "resolved": "https://registry.npmjs.org/@webassemblyjs/helper-buffer/-/helper-buffer-1.8.5.tgz",
- "integrity": "sha512-Ri2R8nOS0U6G49Q86goFIPNgjyl6+oE1abW1pS84BuhP1Qcr5JqMwRFT3Ah3ADDDYGEgGs1iyb1DGX+kAi/c/Q==",
+ "version": "1.9.0",
+ "resolved": "https://registry.npmjs.org/@webassemblyjs/helper-buffer/-/helper-buffer-1.9.0.tgz",
+ "integrity": "sha512-qZol43oqhq6yBPx7YM3m9Bv7WMV9Eevj6kMi6InKOuZxhw+q9hOkvq5e/PpKSiLfyetpaBnogSbNCfBwyB00CA==",
"dev": true
},
"@webassemblyjs/helper-code-frame": {
- "version": "1.8.5",
- "resolved": "https://registry.npmjs.org/@webassemblyjs/helper-code-frame/-/helper-code-frame-1.8.5.tgz",
- "integrity": "sha512-VQAadSubZIhNpH46IR3yWO4kZZjMxN1opDrzePLdVKAZ+DFjkGD/rf4v1jap744uPVU6yjL/smZbRIIJTOUnKQ==",
+ "version": "1.9.0",
+ "resolved": "https://registry.npmjs.org/@webassemblyjs/helper-code-frame/-/helper-code-frame-1.9.0.tgz",
+ "integrity": "sha512-ERCYdJBkD9Vu4vtjUYe8LZruWuNIToYq/ME22igL+2vj2dQ2OOujIZr3MEFvfEaqKoVqpsFKAGsRdBSBjrIvZA==",
"dev": true,
"requires": {
- "@webassemblyjs/wast-printer": "1.8.5"
+ "@webassemblyjs/wast-printer": "1.9.0"
}
},
"@webassemblyjs/helper-fsm": {
- "version": "1.8.5",
- "resolved": "https://registry.npmjs.org/@webassemblyjs/helper-fsm/-/helper-fsm-1.8.5.tgz",
- "integrity": "sha512-kRuX/saORcg8se/ft6Q2UbRpZwP4y7YrWsLXPbbmtepKr22i8Z4O3V5QE9DbZK908dh5Xya4Un57SDIKwB9eow==",
+ "version": "1.9.0",
+ "resolved": "https://registry.npmjs.org/@webassemblyjs/helper-fsm/-/helper-fsm-1.9.0.tgz",
+ "integrity": "sha512-OPRowhGbshCb5PxJ8LocpdX9Kl0uB4XsAjl6jH/dWKlk/mzsANvhwbiULsaiqT5GZGT9qinTICdj6PLuM5gslw==",
"dev": true
},
"@webassemblyjs/helper-module-context": {
- "version": "1.8.5",
- "resolved": "https://registry.npmjs.org/@webassemblyjs/helper-module-context/-/helper-module-context-1.8.5.tgz",
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"dev": true,
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+ "source-map": "~0.7.2",
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@@ -8588,14 +9095,136 @@
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"dev": true,
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- "chokidar": "^2.0.2",
+ "chokidar": "^3.4.1",
"graceful-fs": "^4.1.2",
- "neo-async": "^2.5.0"
+ "neo-async": "^2.5.0",
+ "watchpack-chokidar2": "^2.0.0"
+ },
+ "dependencies": {
+ "anymatch": {
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+ "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-3.1.1.tgz",
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+ "dev": true,
+ "optional": true,
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+ "normalize-path": "^3.0.0",
+ "picomatch": "^2.0.4"
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+ "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.1.0.tgz",
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+ "optional": true,
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+ "chokidar": {
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+ "is-glob": "~4.0.1",
+ "normalize-path": "~3.0.0",
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+ "dev": true,
+ "optional": true,
+ "requires": {
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+ }
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+ "is-binary-path": {
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+ "resolved": "https://registry.npmjs.org/is-binary-path/-/is-binary-path-2.1.0.tgz",
+ "integrity": "sha512-ZMERYes6pDydyuGidse7OsHxtbI7WVeUEozgR/g7rd0xUimYNlvZRE/K2MgZTjWy725IfelLeVcEM97mmtRGXw==",
+ "dev": true,
+ "optional": true,
+ "requires": {
+ "binary-extensions": "^2.0.0"
+ }
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+ "is-number": {
+ "version": "7.0.0",
+ "resolved": "https://registry.npmjs.org/is-number/-/is-number-7.0.0.tgz",
+ "integrity": "sha512-41Cifkg6e8TylSpdtTpeLVMqvSBEVzTttHvERD741+pnZ8ANv0004MRL43QKPDlK9cGvNp6NZWZUBlbGXYxxng==",
+ "dev": true,
+ "optional": true
+ },
+ "readdirp": {
+ "version": "3.4.0",
+ "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-3.4.0.tgz",
+ "integrity": "sha512-0xe001vZBnJEK+uKcj8qOhyAKPzIT+gStxWr3LCB0DwcXR5NZJ3IaC+yGnHCYzB/S7ov3m3EEbZI2zeNvX+hGQ==",
+ "dev": true,
+ "optional": true,
+ "requires": {
+ "picomatch": "^2.2.1"
+ }
+ },
+ "to-regex-range": {
+ "version": "5.0.1",
+ "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
+ "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
+ "dev": true,
+ "optional": true,
+ "requires": {
+ "is-number": "^7.0.0"
+ }
+ }
+ }
+ },
+ "watchpack-chokidar2": {
+ "version": "2.0.0",
+ "resolved": "https://registry.npmjs.org/watchpack-chokidar2/-/watchpack-chokidar2-2.0.0.tgz",
+ "integrity": "sha512-9TyfOyN/zLUbA288wZ8IsMZ+6cbzvsNyEzSBp6e/zkifi6xxbl8SmQ/CxQq32k8NNqrdVEVUVSEf56L4rQ/ZxA==",
+ "dev": true,
+ "optional": true,
+ "requires": {
+ "chokidar": "^2.1.8"
}
},
"wbuf": {
@@ -8608,40 +9237,40 @@
}
},
"webpack": {
- "version": "4.42.0",
- "resolved": "https://registry.npmjs.org/webpack/-/webpack-4.42.0.tgz",
- "integrity": "sha512-EzJRHvwQyBiYrYqhyjW9AqM90dE4+s1/XtCfn7uWg6cS72zH+2VPFAlsnW0+W0cDi0XRjNKUMoJtpSi50+Ph6w==",
+ "version": "4.44.2",
+ "resolved": "https://registry.npmjs.org/webpack/-/webpack-4.44.2.tgz",
+ "integrity": "sha512-6KJVGlCxYdISyurpQ0IPTklv+DULv05rs2hseIXer6D7KrUicRDLFb4IUM1S6LUAKypPM/nSiVSuv8jHu1m3/Q==",
"dev": true,
"requires": {
- "@webassemblyjs/ast": "1.8.5",
- "@webassemblyjs/helper-module-context": "1.8.5",
- "@webassemblyjs/wasm-edit": "1.8.5",
- "@webassemblyjs/wasm-parser": "1.8.5",
- "acorn": "^6.2.1",
+ "@webassemblyjs/ast": "1.9.0",
+ "@webassemblyjs/helper-module-context": "1.9.0",
+ "@webassemblyjs/wasm-edit": "1.9.0",
+ "@webassemblyjs/wasm-parser": "1.9.0",
+ "acorn": "^6.4.1",
"ajv": "^6.10.2",
"ajv-keywords": "^3.4.1",
"chrome-trace-event": "^1.0.2",
- "enhanced-resolve": "^4.1.0",
+ "enhanced-resolve": "^4.3.0",
"eslint-scope": "^4.0.3",
"json-parse-better-errors": "^1.0.2",
"loader-runner": "^2.4.0",
"loader-utils": "^1.2.3",
"memory-fs": "^0.4.1",
"micromatch": "^3.1.10",
- "mkdirp": "^0.5.1",
+ "mkdirp": "^0.5.3",
"neo-async": "^2.6.1",
"node-libs-browser": "^2.2.1",
"schema-utils": "^1.0.0",
"tapable": "^1.1.3",
"terser-webpack-plugin": "^1.4.3",
- "watchpack": "^1.6.0",
+ "watchpack": "^1.7.4",
"webpack-sources": "^1.4.1"
},
"dependencies": {
"ajv": {
- "version": "6.12.0",
- "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.0.tgz",
- "integrity": "sha512-D6gFiFA0RRLyUbvijN74DWAjXSFxWKaWP7mldxkVhyhAV3+SWA9HEJPHQ2c9soIeTFJqcSdFDGFgdqs1iUU2Hw==",
+ "version": "6.12.5",
+ "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.5.tgz",
+ "integrity": "sha512-lRF8RORchjpKG50/WFf8xmg7sgCLFiYNNnqdKflk63whMQcWR5ngGjiSXkL9bjxy6B2npOK2HSMN49jEBMSkag==",
"dev": true,
"requires": {
"fast-deep-equal": "^3.1.1",
@@ -8651,42 +9280,15 @@
}
},
"ajv-keywords": {
- "version": "3.4.1",
- "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.4.1.tgz",
- "integrity": "sha512-RO1ibKvd27e6FEShVFfPALuHI3WjSVNeK5FIsmme/LYRNxjKuNj+Dt7bucLa6NdSv3JcVTyMlm9kGR84z1XpaQ==",
+ "version": "3.5.2",
+ "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.5.2.tgz",
+ "integrity": "sha512-5p6WTN0DdTGVQk6VjcEju19IgaHudalcfabD7yhDGeA6bcQnmL+CpveLJq/3hvfwd1aof6L386Ougkx6RfyMIQ==",
"dev": true
},
"fast-deep-equal": {
- "version": "3.1.1",
- "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.1.tgz",
- "integrity": "sha512-8UEa58QDLauDNfpbrX55Q9jrGHThw2ZMdOky5Gl1CDtVeJDPVrG4Jxx1N8jw2gkWaff5UUuX1KJd+9zGe2B+ZA==",
- "dev": true
- },
- "find-cache-dir": {
- "version": "2.1.0",
- "resolved": "https://registry.npmjs.org/find-cache-dir/-/find-cache-dir-2.1.0.tgz",
- "integrity": "sha512-Tq6PixE0w/VMFfCgbONnkiQIVol/JJL7nRMi20fqzA4NRs9AfeqMGeRdPi3wIhYkxjeBaWh2rxwapn5Tu3IqOQ==",
- "dev": true,
- "requires": {
- "commondir": "^1.0.1",
- "make-dir": "^2.0.0",
- "pkg-dir": "^3.0.0"
- }
- },
- "make-dir": {
- "version": "2.1.0",
- "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-2.1.0.tgz",
- "integrity": "sha512-LS9X+dc8KLxXCb8dni79fLIIUA5VyZoyjSMCwTluaXA0o27cCK0bhXkpgw+sTXVpPy/lSO57ilRixqk0vDmtRA==",
- "dev": true,
- "requires": {
- "pify": "^4.0.1",
- "semver": "^5.6.0"
- }
- },
- "pify": {
- "version": "4.0.1",
- "resolved": "https://registry.npmjs.org/pify/-/pify-4.0.1.tgz",
- "integrity": "sha512-uB80kBFb/tfd68bVleG9T5GGsGPjJrLAUpR5PZIrhBnIaRTQRjqdJSsIKkOP6OAIFbj7GOrcudc5pNjZ+geV2g==",
+ "version": "3.1.3",
+ "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
+ "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==",
"dev": true
},
"source-map": {
@@ -8696,16 +9298,16 @@
"dev": true
},
"terser-webpack-plugin": {
- "version": "1.4.3",
- "resolved": "https://registry.npmjs.org/terser-webpack-plugin/-/terser-webpack-plugin-1.4.3.tgz",
- "integrity": "sha512-QMxecFz/gHQwteWwSo5nTc6UaICqN1bMedC5sMtUc7y3Ha3Q8y6ZO0iCR8pq4RJC8Hjf0FEPEHZqcMB/+DFCrA==",
+ "version": "1.4.5",
+ "resolved": "https://registry.npmjs.org/terser-webpack-plugin/-/terser-webpack-plugin-1.4.5.tgz",
+ "integrity": "sha512-04Rfe496lN8EYruwi6oPQkG0vo8C+HT49X687FZnpPF0qMAIHONI6HEXYPKDOE8e5HjXTyKfqRd/agHtH0kOtw==",
"dev": true,
"requires": {
"cacache": "^12.0.2",
"find-cache-dir": "^2.1.0",
"is-wsl": "^1.1.0",
"schema-utils": "^1.0.0",
- "serialize-javascript": "^2.1.2",
+ "serialize-javascript": "^4.0.0",
"source-map": "^0.6.1",
"terser": "^4.1.2",
"webpack-sources": "^1.4.0",
@@ -9206,9 +9808,9 @@
"dev": true
},
"xtend": {
- "version": "4.0.1",
- "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
- "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=",
+ "version": "4.0.2",
+ "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+ "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
"dev": true
},
"y18n": {
@@ -9217,6 +9819,12 @@
"integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==",
"dev": true
},
+ "yallist": {
+ "version": "4.0.0",
+ "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
+ "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==",
+ "dev": true
+ },
"yargs": {
"version": "15.3.1",
"resolved": "https://registry.npmjs.org/yargs/-/yargs-15.3.1.tgz",
diff --git a/package.json b/package.json
index 73bc21b..f3d2150 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
{
"name": "angular-ui-scroll",
"description": "AngularJS virtual scrolling module",
- "version": "1.8.1",
+ "version": "1.8.2",
"src": "./src/",
"public": "./dist/",
"main": "./dist/ui-scroll.js",
@@ -44,7 +44,7 @@
"@babel/preset-env": "^7.3.1",
"babel-loader": "^8.1.0",
"clean-webpack-plugin": "^0.1.17",
- "copy-webpack-plugin": "^5.1.1",
+ "copy-webpack-plugin": "^6.1.1",
"jasmine-core": "^2.8.0",
"jshint": "^2.10.1",
"karma": "^5.0.5",
@@ -54,7 +54,7 @@
"karma-sourcemap-loader": "^0.3.7",
"karma-webpack": "^4.0.2",
"npm-run-all": "^4.1.2",
- "terser-webpack-plugin": "^2.3.5",
+ "terser-webpack-plugin": "^4.2.2",
"webpack": "^4.42.0",
"webpack-cli": "^3.3.1",
"webpack-dev-server": "^3.11.0"
diff --git a/src/modules/adapter.js b/src/modules/adapter.js
index 5acd569..d0dafce 100644
--- a/src/modules/adapter.js
+++ b/src/modules/adapter.js
@@ -1,3 +1,5 @@
+import { OPERATIONS } from './utils';
+
class Adapter {
constructor($scope, $parse, $attr, viewport, buffer, doAdjust, reload) {
@@ -168,16 +170,23 @@ class Adapter {
}
let position = this.buffer.indexOf(wrapper);
if (!newItems.reverse().some(newItem => newItem === wrapper.item)) {
- wrapper.op = 'remove';
- if (!options.immutableTop && position === 0 && !newItems.length) {
- wrapper._op = 'isTop'; // to catch "first" edge case on remove
+ wrapper.op = OPERATIONS.REMOVE;
+ // try to catch "first" edge case on remove
+ if (!options.immutableTop && !newItems.length) {
+ // this is the first item, or the previous one's part of the "shift-top" group
+ if (
+ (position === 0 && this.buffer.bof) ||
+ (position !== 0 && this.buffer[position - 1].shiftTop)
+ ) {
+ wrapper.shiftTop = true;
+ }
}
}
newItems.forEach((newItem) => {
if (newItem === wrapper.item) {
position--;
} else {
- // 3 parameter (isTop) is to catch "first" edge case on insert
+ // 3 parameter (shiftTop) is to catch "first" edge case on insert
this.buffer.insert(position + 1, newItem, !options.immutableTop && position === -1);
}
});
diff --git a/src/modules/buffer.js b/src/modules/buffer.js
index 4e08573..13b2910 100644
--- a/src/modules/buffer.js
+++ b/src/modules/buffer.js
@@ -1,3 +1,5 @@
+import { OPERATIONS } from './utils';
+
export default function ScrollBuffer(elementRoutines, bufferSize, startIndex) {
const buffer = Object.create(Array.prototype);
@@ -19,7 +21,7 @@ export default function ScrollBuffer(elementRoutines, bufferSize, startIndex) {
append(items) {
items.forEach((item) => {
++buffer.next;
- buffer.insert('append', item);
+ buffer.insert(OPERATIONS.APPEND, item);
});
buffer.maxIndex = buffer.eof ? buffer.next - 1 : Math.max(buffer.next - 1, buffer.maxIndex);
},
@@ -32,7 +34,7 @@ export default function ScrollBuffer(elementRoutines, bufferSize, startIndex) {
else {
--buffer.first;
}
- buffer.insert('prepend', item);
+ buffer.insert(OPERATIONS.PREPEND, item);
});
buffer.minIndex = buffer.bof ? buffer.minIndex = buffer.first : Math.min(buffer.first, buffer.minIndex);
},
@@ -41,17 +43,17 @@ export default function ScrollBuffer(elementRoutines, bufferSize, startIndex) {
* inserts wrapped element in the buffer
* the first argument is either operation keyword (see below) or a number for operation 'insert'
* for insert the number is the index for the buffer element the new one have to be inserted after
- * operations: 'append', 'prepend', 'insert', 'remove', 'update', 'none'
+ * operations: 'append', 'prepend', 'insert', 'remove', 'none'
*/
- insert(operation, item, isTop) {
+ insert(operation, item, shiftTop) {
const wrapper = {
item: item
};
- if (operation % 1 === 0) {// it is an insert
- wrapper.op = 'insert';
+ if (operation % 1 === 0) { // it is an insert
+ wrapper.op = OPERATIONS.INSERT;
buffer.splice(operation, 0, wrapper);
- if(isTop) {
+ if (shiftTop) {
buffer.first--;
}
else {
@@ -60,10 +62,10 @@ export default function ScrollBuffer(elementRoutines, bufferSize, startIndex) {
} else {
wrapper.op = operation;
switch (operation) {
- case 'append':
+ case OPERATIONS.APPEND:
buffer.push(wrapper);
break;
- case 'prepend':
+ case OPERATIONS.PREPEND:
buffer.unshift(wrapper);
break;
}
@@ -79,35 +81,34 @@ export default function ScrollBuffer(elementRoutines, bufferSize, startIndex) {
}
return buffer.splice(arg1, arg2 - arg1);
}
- // removes single item(wrapper) from the buffer
+ // removes single item (wrapper) from the buffer
buffer.splice(buffer.indexOf(arg1), 1);
- if(arg1._op === 'isTop' && buffer.first === this.getAbsMinIndex()) {
+ if (arg1.shiftTop && buffer.first === this.getAbsMinIndex()) {
this.incrementMinIndex();
}
else {
this.decrementMaxIndex();
}
- if(arg1._op === 'isTop') {
+ if (arg1.shiftTop) {
buffer.first++;
}
else {
buffer.next--;
}
- if(!buffer.length) {
- buffer.first = 1;
- buffer.next = 1;
+ if (!buffer.length) {
+ buffer.minIndex = Math.min(buffer.maxIndex, buffer.minIndex);
}
return elementRoutines.removeElementAnimated(arg1);
},
incrementMinIndex() {
- if(buffer.minIndexUser !== null) {
- if(buffer.minIndex > buffer.minIndexUser) {
+ if (buffer.minIndexUser !== null) {
+ if (buffer.minIndex > buffer.minIndexUser) {
buffer.minIndexUser++;
return;
}
- if(buffer.minIndex === buffer.minIndexUser) {
+ if (buffer.minIndex === buffer.minIndexUser) {
buffer.minIndexUser++;
}
}
@@ -115,21 +116,21 @@ export default function ScrollBuffer(elementRoutines, bufferSize, startIndex) {
},
decrementMaxIndex() {
- if(buffer.maxIndexUser !== null && buffer.maxIndex <= buffer.maxIndexUser) {
+ if (buffer.maxIndexUser !== null && buffer.maxIndex <= buffer.maxIndexUser) {
buffer.maxIndexUser--;
}
buffer.maxIndex--;
},
getAbsMinIndex() {
- if(buffer.minIndexUser !== null) {
+ if (buffer.minIndexUser !== null) {
return Math.min(buffer.minIndexUser, buffer.minIndex);
}
return buffer.minIndex;
},
getAbsMaxIndex() {
- if(buffer.maxIndexUser !== null) {
+ if (buffer.maxIndexUser !== null) {
return Math.max(buffer.maxIndexUser, buffer.maxIndex);
}
return buffer.maxIndex;
@@ -152,7 +153,7 @@ export default function ScrollBuffer(elementRoutines, bufferSize, startIndex) {
},
getItems() {
- return buffer.filter(item => item.op === 'none');
+ return buffer.filter(item => item.op === OPERATIONS.NONE);
},
getFirstItem() {
diff --git a/src/modules/padding.js b/src/modules/padding.js
index ce66e22..2324537 100644
--- a/src/modules/padding.js
+++ b/src/modules/padding.js
@@ -15,16 +15,16 @@ class CacheProto {
this.sort((a, b) => ((a.index < b.index) ? -1 : ((a.index > b.index) ? 1 : 0)));
}
- remove(argument, _isTop) {
+ remove(argument, _shiftTop) {
const index = argument % 1 === 0 ? argument : argument.scope.$index;
- const isTop = argument % 1 === 0 ? _isTop : argument._op === 'isTop';
+ const shiftTop = argument % 1 === 0 ? _shiftTop : argument.shiftTop;
for (let i = this.length - 1; i >= 0; i--) {
if (this[i].index === index) {
this.splice(i, 1);
break;
}
}
- if(!isTop) {
+ if (!shiftTop) {
for (let i = this.length - 1; i >= 0; i--) {
if (this[i].index > index) {
this[i].index--;
@@ -50,7 +50,7 @@ Object.getOwnPropertyNames(CacheProto.prototype).forEach(methodName =>
);
function generateElement(template) {
- if(template.nodeType !== Node.ELEMENT_NODE) {
+ if (template.nodeType !== Node.ELEMENT_NODE) {
throw new Error('ui-scroll directive requires an Element node for templating the view');
}
let element;
diff --git a/src/modules/utils.js b/src/modules/utils.js
new file mode 100644
index 0000000..c0b7847
--- /dev/null
+++ b/src/modules/utils.js
@@ -0,0 +1,7 @@
+export const OPERATIONS = {
+ PREPEND: 'prepend',
+ APPEND: 'append',
+ INSERT: 'insert',
+ REMOVE: 'remove',
+ NONE: 'none'
+};
diff --git a/src/modules/viewport.js b/src/modules/viewport.js
index 707c8bf..96ecee3 100644
--- a/src/modules/viewport.js
+++ b/src/modules/viewport.js
@@ -35,7 +35,7 @@ export default function Viewport(elementRoutines, buffer, element, viewportContr
if (!container) {
return true;
}
- if(container !== viewport) {
+ if (container !== viewport) {
viewport.css('height', window.getComputedStyle(container[0]).height);
}
return viewport.height() > 0;
@@ -137,7 +137,7 @@ export default function Viewport(elementRoutines, buffer, element, viewportContr
let topPaddingHeight = 0, topCount = 0;
topPadding.cache.forEach(item => {
- if(item.index < buffer.first) {
+ if (item.index < buffer.first) {
topPaddingHeight += item.height;
topCount++;
}
@@ -145,7 +145,7 @@ export default function Viewport(elementRoutines, buffer, element, viewportContr
let bottomPaddingHeight = 0, bottomCount = 0;
bottomPadding.cache.forEach(item => {
- if(item.index >= buffer.next) {
+ if (item.index >= buffer.next) {
bottomPaddingHeight += item.height;
bottomCount++;
}
@@ -204,9 +204,9 @@ export default function Viewport(elementRoutines, buffer, element, viewportContr
bottomPadding.cache.clear();
},
- removeCacheItem(item, isTop) {
- topPadding.cache.remove(item, isTop);
- bottomPadding.cache.remove(item, isTop);
+ removeCacheItem(item, shiftTop) {
+ topPadding.cache.remove(item, shiftTop);
+ bottomPadding.cache.remove(item, shiftTop);
},
removeItem(item) {
diff --git a/src/ui-scroll.js b/src/ui-scroll.js
index c550f47..705f993 100644
--- a/src/ui-scroll.js
+++ b/src/ui-scroll.js
@@ -3,6 +3,7 @@ import ElementRoutines from './modules/elementRoutines.js';
import ScrollBuffer from './modules/buffer.js';
import Viewport from './modules/viewport.js';
import Adapter from './modules/adapter.js';
+import { OPERATIONS } from './modules/utils';
angular.module('ui.scroll', [])
@@ -318,20 +319,20 @@ angular.module('ui.scroll', [])
buffer.forEach((wrapper, i) => {
switch (wrapper.op) {
- case 'prepend':
+ case OPERATIONS.PREPEND:
toBePrepended.unshift(wrapper);
break;
- case 'append':
+ case OPERATIONS.APPEND:
insertWrapperContent(wrapper, i);
- wrapper.op = 'none';
+ wrapper.op = OPERATIONS.NONE;
inserted.push(wrapper);
break;
- case 'insert':
+ case OPERATIONS.INSERT:
promises = promises.concat(createElement(wrapper, i, viewport.insertElementAnimated));
- wrapper.op = 'none';
+ wrapper.op = OPERATIONS.NONE;
inserted.push(wrapper);
break;
- case 'remove':
+ case OPERATIONS.REMOVE:
toBeRemoved.push(wrapper);
}
});
@@ -341,7 +342,7 @@ angular.module('ui.scroll', [])
if (toBePrepended.length)
toBePrepended.forEach((wrapper) => {
insertWrapperContent(wrapper);
- wrapper.op = 'none';
+ wrapper.op = OPERATIONS.NONE;
});
buffer.forEach((item, i) => item.scope.$index = buffer.first + i);
diff --git a/test/.jshintrc b/test/.jshintrc
index 70cbca9..1cb61f6 100644
--- a/test/.jshintrc
+++ b/test/.jshintrc
@@ -4,7 +4,7 @@
"browser": true,
"eqeqeq": true,
"expr": true,
- "esversion": 6,
+ "esversion": 9,
"forin": true,
"freeze": true,
"futurehostile": true,
diff --git a/test/AdapterTestsSpec.js b/test/AdapterTestsSpec.js
index c2cc991..dabe02c 100644
--- a/test/AdapterTestsSpec.js
+++ b/test/AdapterTestsSpec.js
@@ -21,17 +21,9 @@ describe('uiScroll', function () {
function (viewport, scope) {
expect(viewport.children().length).toBe(5);
- var row1 = viewport.children()[1];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one');
-
- var row2 = viewport.children()[2];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two');
-
- var row3 = viewport.children()[3];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('3: three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: two');
+ expect(Helper.getRow(viewport, 3)).toBe('3: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one');
@@ -51,17 +43,9 @@ describe('uiScroll', function () {
);
expect(viewport.children().length).toBe(5);
- var row1 = viewport.children()[1];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one *1');
-
- var row2 = viewport.children()[2];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two *2');
-
- var row3 = viewport.children()[3];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('3: three *3');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one *1');
+ expect(Helper.getRow(viewport, 2)).toBe('2: two *2');
+ expect(Helper.getRow(viewport, 3)).toBe('3: three *3');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one *1');
@@ -83,18 +67,9 @@ describe('uiScroll', function () {
);
expect(viewport.children().length).toBe(5);
-
- var row1 = viewport.children()[1];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one *1');
-
- var row2 = viewport.children()[2];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two');
-
- var row3 = viewport.children()[3];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('3: three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one *1');
+ expect(Helper.getRow(viewport, 2)).toBe('2: two');
+ expect(Helper.getRow(viewport, 3)).toBe('3: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one *1');
@@ -116,18 +91,9 @@ describe('uiScroll', function () {
);
expect(viewport.children().length).toBe(5);
-
- var row1 = viewport.children()[1];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one');
-
- var row2 = viewport.children()[2];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two *2');
-
- var row3 = viewport.children()[3];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('3: three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: two *2');
+ expect(Helper.getRow(viewport, 3)).toBe('3: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one');
@@ -149,18 +115,9 @@ describe('uiScroll', function () {
);
expect(viewport.children().length).toBe(5);
-
- var row1 = viewport.children()[1];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one');
-
- var row2 = viewport.children()[2];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two');
-
- var row3 = viewport.children()[3];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('3: three *3');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: two');
+ expect(Helper.getRow(viewport, 3)).toBe('3: three *3');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one');
@@ -182,14 +139,8 @@ describe('uiScroll', function () {
);
expect(viewport.children().length).toBe(4);
-
- var row2 = viewport.children()[1];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two');
-
- var row3 = viewport.children()[2];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('3: three');
+ expect(Helper.getRow(viewport, 1)).toBe('2: two');
+ expect(Helper.getRow(viewport, 2)).toBe('3: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('2: two');
@@ -214,14 +165,8 @@ describe('uiScroll', function () {
);
expect(viewport.children().length).toBe(4);
-
- var row2 = viewport.children()[1];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('1: two');
-
- var row3 = viewport.children()[2];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('2: three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: two');
+ expect(Helper.getRow(viewport, 2)).toBe('2: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: two');
@@ -242,14 +187,8 @@ describe('uiScroll', function () {
);
expect(viewport.children().length).toBe(4);
-
- var row1 = viewport.children()[1];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one');
-
- var row2 = viewport.children()[2];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one');
@@ -283,14 +222,8 @@ describe('uiScroll', function () {
);
expect(viewport.children().length).toBe(4);
-
- var row1 = viewport.children()[1];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one');
-
- var row2 = viewport.children()[2];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: two');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one');
@@ -326,22 +259,10 @@ describe('uiScroll', function () {
);
expect(viewport.children().length).toBe(6);
-
- var row0 = viewport.children()[1];
- expect(row0.tagName.toLowerCase()).toBe('div');
- expect(row0.innerHTML).toBe('0: before one');
-
- var row1 = viewport.children()[2];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one');
-
- var row2 = viewport.children()[3];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two');
-
- var row3 = viewport.children()[4];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('3: three');
+ expect(Helper.getRow(viewport, 1)).toBe('0: before one');
+ expect(Helper.getRow(viewport, 2)).toBe('1: one');
+ expect(Helper.getRow(viewport, 3)).toBe('2: two');
+ expect(Helper.getRow(viewport, 4)).toBe('3: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('0: before one');
@@ -364,22 +285,10 @@ describe('uiScroll', function () {
);
expect(viewport.children().length).toBe(6);
-
- var row0 = viewport.children()[1];
- expect(row0.tagName.toLowerCase()).toBe('div');
- expect(row0.innerHTML).toBe('1: before one');
-
- var row1 = viewport.children()[2];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('2: one');
-
- var row2 = viewport.children()[3];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('3: two');
-
- var row3 = viewport.children()[4];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('4: three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: before one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: one');
+ expect(Helper.getRow(viewport, 3)).toBe('3: two');
+ expect(Helper.getRow(viewport, 4)).toBe('4: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: before one');
@@ -399,22 +308,10 @@ describe('uiScroll', function () {
);
expect(viewport.children().length).toBe(6);
-
- var row0 = viewport.children()[1];
- expect(row0.tagName.toLowerCase()).toBe('div');
- expect(row0.innerHTML).toBe('1: one');
-
- var row1 = viewport.children()[2];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('2: after one');
-
- var row2 = viewport.children()[3];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('3: two');
-
- var row3 = viewport.children()[4];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('4: three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: after one');
+ expect(Helper.getRow(viewport, 3)).toBe('3: two');
+ expect(Helper.getRow(viewport, 4)).toBe('4: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one');
@@ -450,22 +347,10 @@ describe('uiScroll', function () {
);
expect(viewport.children().length).toBe(6);
-
- var row0 = viewport.children()[1];
- expect(row0.tagName.toLowerCase()).toBe('div');
- expect(row0.innerHTML).toBe('1: one');
-
- var row1 = viewport.children()[2];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('2: before two');
-
- var row2 = viewport.children()[3];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('3: two');
-
- var row3 = viewport.children()[4];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('4: three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: before two');
+ expect(Helper.getRow(viewport, 3)).toBe('3: two');
+ expect(Helper.getRow(viewport, 4)).toBe('4: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one');
@@ -499,22 +384,10 @@ describe('uiScroll', function () {
);
expect(viewport.children().length).toBe(6);
-
- var row0 = viewport.children()[1];
- expect(row0.tagName.toLowerCase()).toBe('div');
- expect(row0.innerHTML).toBe('1: one');
-
- var row1 = viewport.children()[2];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('2: two');
-
- var row2 = viewport.children()[3];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('3: three');
-
- var row3 = viewport.children()[4];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('4: after three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: two');
+ expect(Helper.getRow(viewport, 3)).toBe('3: three');
+ expect(Helper.getRow(viewport, 4)).toBe('4: after three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one');
@@ -548,18 +421,9 @@ describe('uiScroll', function () {
scope.adapter.applyUpdates(1, ['one *1']);
expect(viewport.children().length).toBe(5);
-
- var row1 = viewport.children()[1];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one *1');
-
- var row2 = viewport.children()[2];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two');
-
- var row3 = viewport.children()[3];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('3: three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one *1');
+ expect(Helper.getRow(viewport, 2)).toBe('2: two');
+ expect(Helper.getRow(viewport, 3)).toBe('3: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one *1');
@@ -575,18 +439,9 @@ describe('uiScroll', function () {
scope.adapter.applyUpdates(0, ['invalid']);
expect(viewport.children().length).toBe(5);
-
- var row1 = viewport.children()[1];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one');
-
- var row2 = viewport.children()[2];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two');
-
- var row3 = viewport.children()[3];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('3: three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: two');
+ expect(Helper.getRow(viewport, 3)).toBe('3: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one');
@@ -602,18 +457,9 @@ describe('uiScroll', function () {
scope.adapter.applyUpdates(4, ['invalid']);
expect(viewport.children().length).toBe(5);
-
- var row1 = viewport.children()[1];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one');
-
- var row2 = viewport.children()[2];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two');
-
- var row3 = viewport.children()[3];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('3: three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: two');
+ expect(Helper.getRow(viewport, 3)).toBe('3: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one');
@@ -629,18 +475,9 @@ describe('uiScroll', function () {
scope.adapter.applyUpdates(2, ['two *2']);
expect(viewport.children().length).toBe(5);
-
- var row1 = viewport.children()[1];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one');
-
- var row2 = viewport.children()[2];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two *2');
-
- var row3 = viewport.children()[3];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('3: three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: two *2');
+ expect(Helper.getRow(viewport, 3)).toBe('3: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one');
@@ -656,18 +493,9 @@ describe('uiScroll', function () {
scope.adapter.applyUpdates(3, ['three *3']);
expect(viewport.children().length).toBe(5);
-
- var row1 = viewport.children()[1];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one');
-
- var row2 = viewport.children()[2];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two');
-
- var row3 = viewport.children()[3];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('3: three *3');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: two');
+ expect(Helper.getRow(viewport, 3)).toBe('3: three *3');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one');
@@ -683,14 +511,8 @@ describe('uiScroll', function () {
scope.adapter.applyUpdates(1, []);
expect(viewport.children().length).toBe(4);
-
- var row2 = viewport.children()[1];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two');
-
- var row3 = viewport.children()[2];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('3: three');
+ expect(Helper.getRow(viewport, 1)).toBe('2: two');
+ expect(Helper.getRow(viewport, 2)).toBe('3: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('2: two');
@@ -708,14 +530,8 @@ describe('uiScroll', function () {
scope.adapter.applyUpdates(1, [], { immutableTop: true });
expect(viewport.children().length).toBe(4);
-
- var row2 = viewport.children()[1];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('1: two');
-
- var row3 = viewport.children()[2];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('2: three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: two');
+ expect(Helper.getRow(viewport, 2)).toBe('2: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: two');
@@ -728,14 +544,8 @@ describe('uiScroll', function () {
scope.adapter.applyUpdates(2, [], options);
expect(viewport.children().length).toBe(4);
-
- var row1 = viewport.children()[1];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one');
-
- var row2 = viewport.children()[2];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one');
@@ -758,14 +568,8 @@ describe('uiScroll', function () {
scope.adapter.applyUpdates(3, []);
expect(viewport.children().length).toBe(4);
-
- var row1 = viewport.children()[1];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one');
-
- var row2 = viewport.children()[2];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: two');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one');
@@ -791,22 +595,10 @@ describe('uiScroll', function () {
scope.adapter.applyUpdates(1, ['before one', 'one']);
expect(viewport.children().length).toBe(6);
-
- var row0 = viewport.children()[1];
- expect(row0.tagName.toLowerCase()).toBe('div');
- expect(row0.innerHTML).toBe('0: before one');
-
- var row1 = viewport.children()[2];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one');
-
- var row2 = viewport.children()[3];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two');
-
- var row3 = viewport.children()[4];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('3: three');
+ expect(Helper.getRow(viewport, 1)).toBe('0: before one');
+ expect(Helper.getRow(viewport, 2)).toBe('1: one');
+ expect(Helper.getRow(viewport, 3)).toBe('2: two');
+ expect(Helper.getRow(viewport, 4)).toBe('3: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('0: before one');
@@ -824,22 +616,10 @@ describe('uiScroll', function () {
scope.adapter.applyUpdates(1, ['before one', 'one'], { immutableTop: true });
expect(viewport.children().length).toBe(6);
-
- var row0 = viewport.children()[1];
- expect(row0.tagName.toLowerCase()).toBe('div');
- expect(row0.innerHTML).toBe('1: before one');
-
- var row1 = viewport.children()[2];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('2: one');
-
- var row2 = viewport.children()[3];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('3: two');
-
- var row3 = viewport.children()[4];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('4: three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: before one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: one');
+ expect(Helper.getRow(viewport, 3)).toBe('3: two');
+ expect(Helper.getRow(viewport, 4)).toBe('4: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: before one');
@@ -852,22 +632,10 @@ describe('uiScroll', function () {
scope.adapter.applyUpdates(1, ['one', 'after one'], options);
expect(viewport.children().length).toBe(6);
-
- var row0 = viewport.children()[1];
- expect(row0.tagName.toLowerCase()).toBe('div');
- expect(row0.innerHTML).toBe('1: one');
-
- var row1 = viewport.children()[2];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('2: after one');
-
- var row2 = viewport.children()[3];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('3: two');
-
- var row3 = viewport.children()[4];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('4: three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: after one');
+ expect(Helper.getRow(viewport, 3)).toBe('3: two');
+ expect(Helper.getRow(viewport, 4)).toBe('4: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one');
@@ -894,22 +662,10 @@ describe('uiScroll', function () {
scope.adapter.applyUpdates(2, ['before two', 'two'], options);
expect(viewport.children().length).toBe(6);
-
- var row0 = viewport.children()[1];
- expect(row0.tagName.toLowerCase()).toBe('div');
- expect(row0.innerHTML).toBe('1: one');
-
- var row1 = viewport.children()[2];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('2: before two');
-
- var row2 = viewport.children()[3];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('3: two');
-
- var row3 = viewport.children()[4];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('4: three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: before two');
+ expect(Helper.getRow(viewport, 3)).toBe('3: two');
+ expect(Helper.getRow(viewport, 4)).toBe('4: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one');
@@ -936,22 +692,10 @@ describe('uiScroll', function () {
scope.adapter.applyUpdates(3, ['three', 'after three'], options);
expect(viewport.children().length).toBe(6);
-
- var row0 = viewport.children()[1];
- expect(row0.tagName.toLowerCase()).toBe('div');
- expect(row0.innerHTML).toBe('1: one');
-
- var row1 = viewport.children()[2];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('2: two');
-
- var row2 = viewport.children()[3];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('3: three');
-
- var row3 = viewport.children()[4];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('4: after three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: two');
+ expect(Helper.getRow(viewport, 3)).toBe('3: three');
+ expect(Helper.getRow(viewport, 4)).toBe('4: after three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one');
@@ -993,17 +737,9 @@ describe('uiScroll', function () {
);
expect(viewport.children().length).toBe(5);
- var row1 = viewport.children()[1];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one *1');
-
- var row2 = viewport.children()[2];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two *2');
-
- var row3 = viewport.children()[3];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('3: three *3');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one *1');
+ expect(Helper.getRow(viewport, 2)).toBe('2: two *2');
+ expect(Helper.getRow(viewport, 3)).toBe('3: three *3');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one *1');
@@ -1027,18 +763,9 @@ describe('uiScroll', function () {
);
expect(viewport.children().length).toBe(5);
- var row1 = viewport.children()[1];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one *1');
-
- var row2 = viewport.children()[2];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two *2');
-
- var row3 = viewport.children()[3];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('3: three *3');
-
+ expect(Helper.getRow(viewport, 1)).toBe('1: one *1');
+ expect(Helper.getRow(viewport, 2)).toBe('2: two *2');
+ expect(Helper.getRow(viewport, 3)).toBe('3: three *3');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one *1');
@@ -1067,35 +794,13 @@ describe('uiScroll', function () {
);
expect(viewport.children().length).toBe(9);
- var row1, row2, row3;
-
- row1 = viewport.children()[1];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('-1: one *1 before 1');
-
- row1 = viewport.children()[2];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('0: one *1 before 2');
-
- row1 = viewport.children()[3];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one *1');
-
- row1 = viewport.children()[4];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('2: one *1 after 1');
-
- row1 = viewport.children()[5];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('3: one *1 after 2');
-
- row2 = viewport.children()[6];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('4: two');
-
- row3 = viewport.children()[7];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('5: three');
+ expect(Helper.getRow(viewport, 1)).toBe('-1: one *1 before 1');
+ expect(Helper.getRow(viewport, 2)).toBe('0: one *1 before 2');
+ expect(Helper.getRow(viewport, 3)).toBe('1: one *1');
+ expect(Helper.getRow(viewport, 4)).toBe('2: one *1 after 1');
+ expect(Helper.getRow(viewport, 5)).toBe('3: one *1 after 2');
+ expect(Helper.getRow(viewport, 6)).toBe('4: two');
+ expect(Helper.getRow(viewport, 7)).toBe('5: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('-1: one *1 before 1');
@@ -1124,35 +829,13 @@ describe('uiScroll', function () {
);
expect(viewport.children().length).toBe(9);
- var row1, row2, row3;
-
- row1 = viewport.children()[1];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one');
-
- row1 = viewport.children()[2];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('2: two *2 before 1');
-
- row1 = viewport.children()[3];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('3: two *2 before 2');
-
- row2 = viewport.children()[4];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('4: two *2');
-
- row1 = viewport.children()[5];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('5: two *2 after 1');
-
- row1 = viewport.children()[6];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('6: two *2 after 2');
-
- row3 = viewport.children()[7];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('7: three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: two *2 before 1');
+ expect(Helper.getRow(viewport, 3)).toBe('3: two *2 before 2');
+ expect(Helper.getRow(viewport, 4)).toBe('4: two *2');
+ expect(Helper.getRow(viewport, 5)).toBe('5: two *2 after 1');
+ expect(Helper.getRow(viewport, 6)).toBe('6: two *2 after 2');
+ expect(Helper.getRow(viewport, 7)).toBe('7: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one');
@@ -1171,26 +854,11 @@ describe('uiScroll', function () {
scope.adapter.append(['appended one', 'appended two']);
expect(viewport.children().length).toBe(7);
-
- var row1 = viewport.children()[1];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one');
-
- var row2 = viewport.children()[2];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two');
-
- var row3 = viewport.children()[3];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('3: three');
-
- var row4 = viewport.children()[4];
- expect(row4.tagName.toLowerCase()).toBe('div');
- expect(row4.innerHTML).toBe('4: appended one');
-
- var row5 = viewport.children()[5];
- expect(row5.tagName.toLowerCase()).toBe('div');
- expect(row5.innerHTML).toBe('5: appended two');
+ expect(Helper.getRow(viewport, 1)).toBe('1: one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: two');
+ expect(Helper.getRow(viewport, 3)).toBe('3: three');
+ expect(Helper.getRow(viewport, 4)).toBe('4: appended one');
+ expect(Helper.getRow(viewport, 5)).toBe('5: appended two');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: one');
@@ -1206,14 +874,8 @@ describe('uiScroll', function () {
scope.adapter.append(['appended one', 'appended two']);
expect(viewport.children().length).toBe(4);
-
- var row4 = viewport.children()[1];
- expect(row4.tagName.toLowerCase()).toBe('div');
- expect(row4.innerHTML).toBe('1: appended one');
-
- var row5 = viewport.children()[2];
- expect(row5.tagName.toLowerCase()).toBe('div');
- expect(row5.innerHTML).toBe('2: appended two');
+ expect(Helper.getRow(viewport, 1)).toBe('1: appended one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: appended two');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: appended one');
@@ -1233,26 +895,11 @@ describe('uiScroll', function () {
scope.adapter.prepend(['prepended one', 'prepended two']);
expect(viewport.children().length).toBe(7);
-
- var row4 = viewport.children()[1];
- expect(row4.tagName.toLowerCase()).toBe('div');
- expect(row4.innerHTML).toBe('-1: prepended one');
-
- var row5 = viewport.children()[2];
- expect(row5.tagName.toLowerCase()).toBe('div');
- expect(row5.innerHTML).toBe('0: prepended two');
-
- var row1 = viewport.children()[3];
- expect(row1.tagName.toLowerCase()).toBe('div');
- expect(row1.innerHTML).toBe('1: one');
-
- var row2 = viewport.children()[4];
- expect(row2.tagName.toLowerCase()).toBe('div');
- expect(row2.innerHTML).toBe('2: two');
-
- var row3 = viewport.children()[5];
- expect(row3.tagName.toLowerCase()).toBe('div');
- expect(row3.innerHTML).toBe('3: three');
+ expect(Helper.getRow(viewport, 1)).toBe('-1: prepended one');
+ expect(Helper.getRow(viewport, 2)).toBe('0: prepended two');
+ expect(Helper.getRow(viewport, 3)).toBe('1: one');
+ expect(Helper.getRow(viewport, 4)).toBe('2: two');
+ expect(Helper.getRow(viewport, 5)).toBe('3: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('-1: prepended one');
@@ -1268,11 +915,11 @@ describe('uiScroll', function () {
scope.adapter.prepend(['prepended one', 'prepended two'], { immutableTop: true });
expect(viewport.children().length).toBe(7);
- expect(viewport.children()[1].innerHTML).toBe('1: prepended one');
- expect(viewport.children()[2].innerHTML).toBe('2: prepended two');
- expect(viewport.children()[3].innerHTML).toBe('3: one');
- expect(viewport.children()[4].innerHTML).toBe('4: two');
- expect(viewport.children()[5].innerHTML).toBe('5: three');
+ expect(Helper.getRow(viewport, 1)).toBe('1: prepended one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: prepended two');
+ expect(Helper.getRow(viewport, 3)).toBe('3: one');
+ expect(Helper.getRow(viewport, 4)).toBe('4: two');
+ expect(Helper.getRow(viewport, 5)).toBe('5: three');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: prepended one');
@@ -1288,14 +935,8 @@ describe('uiScroll', function () {
scope.adapter.prepend(['prepended one', 'prepended two']);
expect(viewport.children().length).toBe(4);
-
- var row4 = viewport.children()[1];
- expect(row4.tagName.toLowerCase()).toBe('div');
- expect(row4.innerHTML).toBe('-1: prepended one');
-
- var row5 = viewport.children()[2];
- expect(row5.tagName.toLowerCase()).toBe('div');
- expect(row5.innerHTML).toBe('0: prepended two');
+ expect(Helper.getRow(viewport, 1)).toBe('-1: prepended one');
+ expect(Helper.getRow(viewport, 2)).toBe('0: prepended two');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('-1: prepended one');
@@ -1311,8 +952,8 @@ describe('uiScroll', function () {
scope.adapter.prepend(['prepended one', 'prepended two'], { immutableTop: true });
expect(viewport.children().length).toBe(4);
- expect(viewport.children()[1].innerHTML).toBe('1: prepended one');
- expect(viewport.children()[2].innerHTML).toBe('2: prepended two');
+ expect(Helper.getRow(viewport, 1)).toBe('1: prepended one');
+ expect(Helper.getRow(viewport, 2)).toBe('2: prepended two');
expect(scope.adapter).toBeTruthy();
expect(scope.adapter.topVisibleElement[0].innerHTML).toBe('1: prepended one');
@@ -1516,9 +1157,7 @@ describe('uiScroll', function () {
scope.adapter.append(['item1*', 'item2*', 'item3*']);
expect(scope.adapter.isEOF()).toBe(true);
expect(viewport.children().length).toBe(2 + 3 + 3);
-
- var lastRow = viewport.children()[viewport.children().length - 2];
- expect(lastRow.innerHTML).toBe('6: item3*');
+ expect(Helper.getLastRow(viewport)).toBe('6: item3*');
}
);
});
@@ -1534,9 +1173,7 @@ describe('uiScroll', function () {
viewport.scrollTop(10000);
expect(scope.adapter.isEOF()).toBe(true);
expect(viewport.children().length).toBe(2 + 3 + 3);
-
- var lastRow = viewport.children()[viewport.children().length - 2];
- expect(lastRow.innerHTML).toBe('6: item3*');
+ expect(Helper.getLastRow(viewport)).toBe('6: item3*');
}
);
});
@@ -1556,11 +1193,8 @@ describe('uiScroll', function () {
scope.adapter.append(['item7*', 'item8*', 'item9*', 'item10*']);
expect(viewport.children().length).toBe(2 + 3 + 3 + 3);
- var firstRow = viewport.children()[1];
- expect(firstRow.innerHTML).toBe('4: item1*');
-
- var lastRow = viewport.children()[viewport.children().length - 2];
- expect(lastRow.innerHTML).toBe('12: item9*');
+ expect(Helper.getFirstRow(viewport)).toBe('4: item1*');
+ expect(Helper.getLastRow(viewport)).toBe('12: item9*');
}
);
});
@@ -1574,7 +1208,9 @@ describe('uiScroll', function () {
runTest(scrollSettings,
function (viewport, scope) {
expect(scope.adapter.bufferFirst).toBe('item1');
+ expect(Helper.getFirstRow(viewport)).toBe('1: item1');
expect(scope.adapter.bufferLast).toBe('item10');
+ expect(Helper.getLastRow(viewport)).toBe('10: item10');
expect(scope.adapter.bufferLength).toBe(10);
}
);
@@ -1582,15 +1218,16 @@ describe('uiScroll', function () {
it('scroll to the bottom', function () {
runTest(scrollSettings,
- function (viewport, scope) {
+ function (viewport, scope) {
viewport.scrollTop(10000);
expect(scope.adapter.bufferFirst).toBe('item5');
+ expect(Helper.getFirstRow(viewport)).toBe('5: item5');
expect(scope.adapter.bufferLast).toBe('item20');
+ expect(Helper.getLastRow(viewport)).toBe('20: item20');
expect(scope.adapter.bufferLength).toBe(16);
}
);
});
-
});
});
diff --git a/test/BufferCleanupSpec.js b/test/BufferCleanupSpec.js
new file mode 100644
index 0000000..7130abc
--- /dev/null
+++ b/test/BufferCleanupSpec.js
@@ -0,0 +1,209 @@
+describe('uiScroll', () => {
+ 'use strict';
+
+ let datasource;
+ beforeEach(module('ui.scroll'));
+ beforeEach(module('ui.scroll.test.datasources'));
+
+ const injectDatasource = datasourceToken =>
+ beforeEach(
+ inject([datasourceToken, _datasource =>
+ datasource = _datasource
+ ])
+ );
+
+ describe('buffer cleanup', () => {
+ const settings = {
+ datasource: 'myEdgeDatasource', // items range is [-5..6]
+ adapter: 'adapter',
+ viewportHeight: 60,
+ itemHeight: 20,
+ padding: 0.3,
+ startIndex: 3,
+ bufferSize: 3
+ };
+
+ injectDatasource('myEdgeDatasource');
+
+ const cleanBuffer = (scope, applyUpdateOptions) => {
+ const get = datasource.get;
+ const removedItems = [];
+ // sync the datasource
+ datasource.get = (index, count, success) => {
+ if (removedItems.indexOf('item' + index) !== -1) {
+ index += removedItems.length;
+ }
+ get(index, count, success);
+ };
+ // clean up the buffer
+ scope.adapter.applyUpdates(item => {
+ removedItems.push(item);
+ return [];
+ }, applyUpdateOptions);
+ };
+
+ const shouldWorkWhenEOF = (viewport, scope, options) => {
+ expect(scope.adapter.isBOF()).toBe(false);
+ expect(scope.adapter.isEOF()).toBe(true);
+ expect(scope.adapter.bufferFirst).toBe('item0');
+ expect(scope.adapter.bufferLast).toBe('item6');
+
+ // remove items 0..6 items form -5..6 datasource
+ cleanBuffer(scope, options);
+
+ // result [-5..-1]
+ expect(scope.adapter.isBOF()).toBe(true);
+ expect(scope.adapter.isEOF()).toBe(true);
+ expect(Helper.getRow(viewport, 1)).toBe('-5: item-5');
+ expect(Helper.getRow(viewport, 2)).toBe('-4: item-4');
+ expect(Helper.getRow(viewport, 3)).toBe('-3: item-3');
+ expect(Helper.getRow(viewport, 4)).toBe('-2: item-2');
+ expect(Helper.getRow(viewport, 5)).toBe('-1: item-1');
+ expect(scope.adapter.bufferLength).toBe(5);
+ };
+
+ it('should be consistent on forward direction when eof with immutabeTop', () =>
+ runTest(settings, (viewport, scope) =>
+ shouldWorkWhenEOF(viewport, scope, { immutableTop: true })
+ )
+ );
+
+ it('should be consistent on forward direction when eof without immutabeTop', () =>
+ runTest(settings, (viewport, scope) =>
+ shouldWorkWhenEOF(viewport, scope)
+ )
+ );
+
+ const shouldWorkWhenNotEOF = (viewport, scope, options) => {
+ expect(scope.adapter.isBOF()).toBe(false);
+ expect(scope.adapter.isEOF()).toBe(false);
+ expect(scope.adapter.bufferFirst).toBe('item-4');
+ expect(scope.adapter.bufferLast).toBe('item1');
+
+ // remove items -4..1 items form -5..6 datasource
+ cleanBuffer(scope, options);
+
+ // result [-5, 2, 3, 4]
+ expect(scope.adapter.isBOF()).toBe(true);
+ expect(scope.adapter.isEOF()).toBe(false);
+ expect(Helper.getRow(viewport, 1)).toBe('-5: item-5');
+ expect(Helper.getRow(viewport, 2)).toBe('-4: item2');
+ expect(Helper.getRow(viewport, 3)).toBe('-3: item3');
+ expect(Helper.getRow(viewport, 4)).toBe('-2: item4');
+ expect(scope.adapter.bufferLength).toBe(4);
+ };
+
+ it('should be consistent on forward direction when not eof with immutabeTop', () =>
+ runTest({
+ ...settings,
+ startIndex: -1,
+ viewportHeight: 40
+ }, (viewport, scope) =>
+ shouldWorkWhenNotEOF(viewport, scope, { immutableTop: true })
+ )
+ );
+
+ it('should be consistent on forward direction when not eof without immutabeTop', () =>
+ runTest({
+ ...settings,
+ startIndex: -1,
+ viewportHeight: 40
+ }, (viewport, scope) =>
+ shouldWorkWhenNotEOF(viewport, scope)
+ )
+ );
+
+ it('should be consistent on backward direction when bof with immutableTop', () =>
+ runTest({
+ ...settings,
+ startIndex: -3,
+ padding: 0.5
+ }, (viewport, scope) => {
+ expect(scope.adapter.isBOF()).toBe(true);
+ expect(scope.adapter.isEOF()).toBe(false);
+ expect(scope.adapter.bufferFirst).toBe('item-5');
+ expect(scope.adapter.bufferLast).toBe('item1');
+
+ // remove items -5..1 items form -5..6 datasource
+ cleanBuffer(scope, { immutableTop: true });
+
+ // result [2..6]
+ expect(scope.adapter.isBOF()).toBe(true);
+ expect(scope.adapter.isEOF()).toBe(true);
+ expect(Helper.getRow(viewport, 1)).toBe('-5: item2');
+ expect(Helper.getRow(viewport, 2)).toBe('-4: item3');
+ expect(Helper.getRow(viewport, 3)).toBe('-3: item4');
+ expect(Helper.getRow(viewport, 4)).toBe('-2: item5');
+ expect(Helper.getRow(viewport, 5)).toBe('-1: item6');
+ expect(scope.adapter.bufferLength).toBe(5);
+ })
+ );
+
+ it('should be consistent on backward direction when bof without immutableTop', () =>
+ runTest({
+ ...settings,
+ startIndex: -3,
+ padding: 0.5
+ }, (viewport, scope) => {
+ expect(scope.adapter.isBOF()).toBe(true);
+ expect(scope.adapter.isEOF()).toBe(false);
+ expect(scope.adapter.bufferFirst).toBe('item-5');
+ expect(scope.adapter.bufferLast).toBe('item1');
+
+ // remove items -5..1 items form -5..6 datasource
+ cleanBuffer(scope);
+
+ // result [2..6]
+ expect(scope.adapter.isBOF()).toBe(true);
+ expect(scope.adapter.isEOF()).toBe(true);
+ expect(Helper.getRow(viewport, 1)).toBe('2: item2');
+ expect(Helper.getRow(viewport, 2)).toBe('3: item3');
+ expect(Helper.getRow(viewport, 3)).toBe('4: item4');
+ expect(Helper.getRow(viewport, 4)).toBe('5: item5');
+ expect(Helper.getRow(viewport, 5)).toBe('6: item6');
+ expect(scope.adapter.bufferLength).toBe(5);
+ })
+ );
+
+ const shouldWorkWhenNotBOF = (viewport, scope, options) => {
+ expect(scope.adapter.isBOF()).toBe(false);
+ expect(scope.adapter.isEOF()).toBe(false);
+ expect(scope.adapter.bufferFirst).toBe('item-4');
+ expect(scope.adapter.bufferLast).toBe('item2');
+
+ // remove items -4..2 items form -5..6 datasource
+ cleanBuffer(scope, options);
+
+ // result [-5, 3, 4, 5, 6]
+ expect(scope.adapter.isBOF()).toBe(true);
+ expect(scope.adapter.isEOF()).toBe(true);
+ expect(Helper.getRow(viewport, 1)).toBe('-5: item-5');
+ expect(Helper.getRow(viewport, 2)).toBe('-4: item3');
+ expect(Helper.getRow(viewport, 3)).toBe('-3: item4');
+ expect(Helper.getRow(viewport, 4)).toBe('-2: item5');
+ expect(Helper.getRow(viewport, 5)).toBe('-1: item6');
+ expect(scope.adapter.bufferLength).toBe(5);
+ };
+
+ it('should be consistent on backward direction when not bof with immutableTop', () =>
+ runTest({
+ ...settings,
+ startIndex: -1,
+ padding: 0.3
+ }, (viewport, scope) =>
+ shouldWorkWhenNotBOF(viewport, scope, { immutableTop: true })
+ )
+ );
+
+ it('should be consistent on backward direction when not bof without immutableTop', () =>
+ runTest({
+ ...settings,
+ startIndex: -1,
+ padding: 0.3
+ }, (viewport, scope) =>
+ shouldWorkWhenNotBOF(viewport, scope)
+ )
+ );
+ });
+
+});
diff --git a/test/misc/helpers.js b/test/misc/helpers.js
index cf272a1..ece545e 100644
--- a/test/misc/helpers.js
+++ b/test/misc/helpers.js
@@ -17,6 +17,24 @@ let Helper;
const viewportChildren = viewport.children();
const bottomPadding = viewportChildren[viewportChildren.length - 1];
return parseInt(bottomPadding.style.height, 10);
+ },
+
+ getRow: (viewport, number) => { // number is index + 1
+ const viewportChildren = viewport.children();
+ if (viewportChildren.length < 2 + number) {
+ return;
+ }
+ return viewportChildren[number].innerHTML;
+ },
+
+ getFirstRow: (viewport) => Helper.getRow(viewport, 1),
+
+ getLastRow: (viewport) => {
+ const viewportChildren = viewport.children();
+ if (viewportChildren.length < 3) {
+ return;
+ }
+ return viewportChildren[viewportChildren.length - 2].innerHTML;
}
};
diff --git a/webpack.config.js b/webpack.config.js
index 21466ff..a3dc1e8 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -113,10 +113,12 @@ if (ENV === 'production') {
new CleanWebpackPlugin('dist', {
root: __dirname
}),
- new CopyWebpackPlugin([
- { from: 'src/ui-scroll-jqlite.js', to: 'ui-scroll-jqlite.min.js' },
- { from: 'src/ui-scroll-jqlite.js', to: 'ui-scroll-jqlite.js' }
- ], { copyUnmodified: true }),
+ new CopyWebpackPlugin({
+ patterns: [
+ { from: 'src/ui-scroll-jqlite.js', to: 'ui-scroll-jqlite.min.js' },
+ { from: 'src/ui-scroll-jqlite.js', to: 'ui-scroll-jqlite.js' }
+ ]
+ }),
new webpack.BannerPlugin(getBanner())
],