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Multicolumn directive
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| // <div data-multicolumn-layout data-column-count="2" data-items="items">{{item}}</div> | |
| (function () { | |
| 'use strict'; | |
| angular | |
| .module('app') | |
| .directive('multicolumnLayout', multicolumnLayout); | |
| multicolumnLayout.$inject = ['$compile']; | |
| function multicolumnLayout($compile) { | |
| var directive = { | |
| restrict: 'AE', | |
| scope: { | |
| items: '=' | |
| }, | |
| link: link | |
| }; | |
| return directive; | |
| //////////// | |
| function link(scope, element, attrs) { | |
| compileTemplate(scope, element); | |
| var maxColumns = attrs.columnCount || 3, | |
| columnsCount, | |
| perColumn, | |
| columns; | |
| scope.$watch('items', function (items) { | |
| if (!items) { | |
| return; | |
| } | |
| if (!items.length) { | |
| scope.columns = null; | |
| return; | |
| } | |
| columns = []; | |
| columnsCount = getColumnsCount(items.length, maxColumns); | |
| perColumn = Math.ceil(items.length / columnsCount); | |
| for (var i = 0; i < columnsCount; i += 1) { | |
| columns.push(items.slice(i * perColumn, ((i * 2) || 1) * perColumn)); | |
| } | |
| scope.columns = columns; | |
| }); | |
| } | |
| function compileTemplate(scope, element) { | |
| var columns, column, list, listItem, | |
| itemTemplate = element.contents(); | |
| element.addClass('row'); | |
| columns = angular.element('<ul class="list-inline no-margin"></ul>'); | |
| column = angular.element('<li data-ng-repeat="column in columns" data-ng-class="columnClass"></li>'); | |
| list = angular.element('<ul class="list-unstyled no-margin"></ul>'); | |
| listItem = angular.element('<li data-ng-repeat="item in column"></li>'); | |
| listItem.append(itemTemplate); | |
| list.append(listItem); | |
| column.append(list); | |
| columns.append(column); | |
| element.html(''); | |
| element.append(columns); | |
| $compile(element.contents())(scope); | |
| } | |
| function getColumnsCount(itemsCount, max) { | |
| if (max === 1) { | |
| return max; | |
| } | |
| var perColumn = Math.ceil(itemsCount / max); | |
| if (perColumn < 3) { | |
| max -= 1; | |
| return getColumnsCount(itemsCount, max); | |
| } | |
| return max; | |
| } | |
| } | |
| })(); |
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