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- /**
- * @file
- * A Backbone view for the collapsible menus.
- */
- (function ($, Backbone, Drupal) {
- Drupal.toolbar.MenuVisualView = Backbone.View.extend(/** @lends Drupal.toolbar.MenuVisualView# */{
- /**
- * Backbone View for collapsible menus.
- *
- * @constructs
- *
- * @augments Backbone.View
- */
- initialize() {
- this.listenTo(this.model, 'change:subtrees', this.render);
- },
- /**
- * @inheritdoc
- */
- render() {
- const subtrees = this.model.get('subtrees');
- // Add subtrees.
- Object.keys(subtrees || {}).forEach((id) => {
- this.$el
- .find(`#toolbar-link-${id}`)
- .once('toolbar-subtrees')
- .after(subtrees[id]);
- });
- // Render the main menu as a nested, collapsible accordion.
- if ('drupalToolbarMenu' in $.fn) {
- this.$el
- .children('.toolbar-menu')
- .drupalToolbarMenu();
- }
- },
- });
- }(jQuery, Backbone, Drupal));
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