Files
edx-platform/cms/static/js/views/assets.js
2014-04-09 10:32:13 -04:00

99 lines
4.0 KiB
JavaScript

define(["jquery", "underscore", "gettext", "js/views/paging", "js/views/asset", "js/views/paging_header", "js/views/paging_footer"],
function($, _, gettext, PagingView, AssetView, PagingHeader, PagingFooter) {
var AssetsView = PagingView.extend({
// takes AssetCollection as model
events : {
"click .column-sort-link": "onToggleColumn"
},
initialize : function() {
PagingView.prototype.initialize.call(this);
var collection = this.collection;
this.template = this.loadTemplate("asset-library");
this.listenTo(collection, 'destroy', this.handleDestroy);
this.registerSortableColumn('js-asset-name-col', gettext('Name'), 'display_name', 'asc');
this.registerSortableColumn('js-asset-date-col', gettext('Date Added'), 'date_added', 'desc');
this.setInitialSortColumn('js-asset-date-col');
this.showLoadingIndicator();
},
render: function() {
// Wait until the content is loaded the first time to render
return this;
},
getTableBody: function() {
var tableBody = this.tableBody;
if (!tableBody) {
this.hideLoadingIndicator();
// Create the table
this.$el.html(this.template());
tableBody = this.$('#asset-table-body');
this.tableBody = tableBody;
this.pagingHeader = new PagingHeader({view: this, el: $('#asset-paging-header')});
this.pagingFooter = new PagingFooter({view: this, el: $('#asset-paging-footer')});
this.pagingHeader.render();
this.pagingFooter.render();
// Hide the contents until the collection has loaded the first time
this.$('.asset-library').hide();
this.$('.no-asset-content').hide();
}
return tableBody;
},
renderPageItems: function() {
var self = this,
assets = this.collection,
hasAssets = assets.length > 0,
tableBody = this.getTableBody();
tableBody.empty();
if (hasAssets) {
assets.each(
function(asset) {
var view = new AssetView({model: asset});
tableBody.append(view.render().el);
}
);
}
self.$('.asset-library').toggle(hasAssets);
self.$('.no-asset-content').toggle(!hasAssets);
return this;
},
onError: function() {
this.hideLoadingIndicator();
},
handleDestroy: function(model) {
this.collection.fetch({reset: true}); // reload the collection to get a fresh page full of items
analytics.track('Deleted Asset', {
'course': course_location_analytics,
'id': model.get('url')
});
},
addAsset: function (model) {
// Switch the sort column back to the default (most recent date added) and show the first page
// so that the new asset is shown at the top of the page.
this.setInitialSortColumn('js-asset-date-col');
this.setPage(0);
analytics.track('Uploaded a File', {
'course': course_location_analytics,
'asset_url': model.get('url')
});
},
onToggleColumn: function(event) {
var columnName = event.target.id;
this.toggleSortOrder(columnName);
}
});
return AssetsView;
}); // end define();