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84 lines
2.3 KiB
JavaScript
84 lines
2.3 KiB
JavaScript
/**
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This view handles rendering of a combobox
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@class ComboboxView
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@extends Discourse.View
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@namespace Discourse
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@module Discourse
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**/
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Discourse.ComboboxView = Discourse.View.extend({
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tagName: 'select',
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classNames: ['combobox'],
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valueAttribute: 'id',
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render: function(buffer) {
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var nameProperty = this.get('nameProperty') || 'name';
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// Add none option if required
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if (this.get('none')) {
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buffer.push('<option value="">' + (I18n.t(this.get('none'))) + "</option>");
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}
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var selected = this.get('value');
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if (selected) { selected = selected.toString(); }
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if (this.get('content')) {
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var comboboxView = this;
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_.each(this.get('content'),function(o) {
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var val = o[comboboxView.get('valueAttribute')];
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if (val) { val = val.toString(); }
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var selectedText = (val === selected) ? "selected" : "";
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var data = "";
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if (comboboxView.dataAttributes) {
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comboboxView.dataAttributes.forEach(function(a) {
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data += "data-" + a + "=\"" + o.get(a) + "\" ";
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});
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}
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buffer.push("<option " + selectedText + " value=\"" + val + "\" " + data + ">" + Em.get(o, nameProperty) + "</option>");
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});
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}
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},
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valueChanged: function() {
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var $combo = this.$();
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var val = this.get('value');
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if (val !== undefined && val !== null) {
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$combo.val(val.toString());
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} else {
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$combo.val(null);
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}
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$combo.trigger("liszt:updated");
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}.observes('value'),
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didInsertElement: function() {
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var $elem = this.$();
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var comboboxView = this;
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$elem.chosen({ template: this.template, disable_search_threshold: 5 });
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if (this.overrideWidths) {
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// The Chosen plugin hard-codes the widths in style attrs. :<
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var $chznContainer = $elem.chosen().next();
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$chznContainer.removeAttr("style");
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$chznContainer.find('.chzn-drop').removeAttr("style");
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$chznContainer.find('.chzn-search input').removeAttr("style");
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}
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if (this.classNames && this.classNames.length > 0) {
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// Apply the classes to Chosen's dropdown div too:
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_.each(this.classNames,function(c) {
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$elem.chosen().next().addClass(c);
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});
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}
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$elem.chosen().change(function(e) {
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comboboxView.set('value', $(e.target).val());
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});
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}
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});
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Discourse.View.registerHelper('combobox', Discourse.ComboboxView);
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