144 lines
6.0 KiB
JavaScript
144 lines
6.0 KiB
JavaScript
;(function (define) {
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'use strict';
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define(["underscore", "backbone", "gettext"],
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function(_, Backbone, gettext) {
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var PagingView = Backbone.View.extend({
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// takes a Backbone Paginator as a model
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sortableColumns: {},
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filterableColumns: {},
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filterColumn: '',
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initialize: function() {
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Backbone.View.prototype.initialize.call(this);
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var collection = this.collection;
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collection.bind('add', _.bind(this.onPageRefresh, this));
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collection.bind('remove', _.bind(this.onPageRefresh, this));
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collection.bind('reset', _.bind(this.onPageRefresh, this));
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collection.bind('error', _.bind(this.onError, this));
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collection.bind('page_changed', function () { window.scrollTo(0, 0); });
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},
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onPageRefresh: function() {
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var sortColumn = this.collection.sortColumn;
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this.renderPageItems();
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this.$('.column-sort-link').removeClass('current-sort');
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this.$('#' + sortColumn).addClass('current-sort');
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},
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onError: function() {
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// Do nothing by default
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},
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setPage: function (page) {
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this.collection.setPage(page);
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},
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nextPage: function () {
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this.collection.nextPage();
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},
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previousPage: function () {
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this.collection.previousPage();
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},
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registerFilterableColumn: function(columnName, displayName, fieldName) {
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this.filterableColumns[columnName] = {
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displayName: displayName,
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fieldName: fieldName
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};
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},
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filterableColumnInfo: function(filterColumn) {
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var filterInfo = this.filterableColumns[filterColumn];
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if (!filterInfo) {
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throw "Unregistered filter column '" + filterInfo + '"';
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}
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return filterInfo;
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},
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filterDisplayName: function() {
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var filterColumn = this.filterColumn,
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filterInfo = this.filterableColumnInfo(filterColumn);
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return filterInfo.displayName;
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},
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setInitialFilterColumn: function(filterColumn) {
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var collection = this.collection,
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filterInfo = this.filterableColumns[filterColumn];
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collection.filterField = filterInfo.fieldName;
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this.filterColumn = filterColumn;
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},
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/**
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* Registers information about a column that can be sorted.
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* @param columnName The element name of the column.
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* @param displayName The display name for the column in the current locale.
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* @param fieldName The database field name that is represented by this column.
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* @param defaultSortDirection The default sort direction for the column
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*/
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registerSortableColumn: function(columnName, displayName, fieldName, defaultSortDirection) {
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this.sortableColumns[columnName] = {
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displayName: displayName,
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fieldName: fieldName,
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defaultSortDirection: defaultSortDirection
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};
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},
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sortableColumnInfo: function(sortColumn) {
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var sortInfo = this.sortableColumns[sortColumn];
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if (!sortInfo) {
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throw "Unregistered sort column '" + sortColumn + '"';
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}
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return sortInfo;
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},
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sortDisplayName: function() {
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var sortColumn = this.sortColumn,
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sortInfo = this.sortableColumnInfo(sortColumn);
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return sortInfo.displayName;
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},
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setInitialSortColumn: function(sortColumn) {
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var collection = this.collection,
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sortInfo = this.sortableColumns[sortColumn];
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collection.sortField = sortInfo.fieldName;
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collection.sortDirection = sortInfo.defaultSortDirection;
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this.sortColumn = sortColumn;
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},
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toggleSortOrder: function(sortColumn) {
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var collection = this.collection,
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sortInfo = this.sortableColumnInfo(sortColumn),
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sortField = sortInfo.fieldName,
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defaultSortDirection = sortInfo.defaultSortDirection;
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if (collection.sortField === sortField) {
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collection.sortDirection = collection.sortDirection === 'asc' ? 'desc' : 'asc';
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} else {
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collection.sortField = sortField;
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collection.sortDirection = defaultSortDirection;
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}
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this.sortColumn = sortColumn;
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this.collection.setPage(1);
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},
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selectFilter: function(filterColumn) {
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var collection = this.collection,
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filterInfo = this.filterableColumnInfo(filterColumn),
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filterField = filterInfo.fieldName,
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defaultFilterKey = false;
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if (collection.filterField !== filterField) {
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collection.filterField = filterField;
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}
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this.filterColumn = filterColumn;
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this.collection.setPage(1);
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}
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});
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return PagingView;
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}); // end define();
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}).call(this, define || RequireJS.define);
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