listening for change on SelectView and SelectMultipleView

IPython/html/static/widgets/js/widget_selection.js

@@ -1,551 +1,565 b''
 // Copyright (c) IPython Development Team.
 // Distributed under the terms of the Modified BSD License.
 
 define([
     "widgets/js/widget",
     "base/js/utils",
     "jquery",
     "underscore",
     "bootstrap",
 ], function(widget, utils, $, _){
 
     var DropdownView = widget.DOMWidgetView.extend({
         render : function(){
             /**
              * Called when view is rendered.
              */
             this.$el
                 .addClass('widget-hbox widget-dropdown');
             this.$label = $('<div />')
                 .appendTo(this.$el)
                 .addClass('widget-label')
                 .hide();
             this.$buttongroup = $('<div />')
                 .addClass('widget_item')
                 .addClass('btn-group')
                 .appendTo(this.$el);
             this.$droplabel = $('<button />')
                 .addClass('btn btn-default')
                 .addClass('widget-combo-btn')
                 .html("&nbsp;")
                 .appendTo(this.$buttongroup);
             this.$dropbutton = $('<button />')
                 .addClass('btn btn-default')
                 .addClass('dropdown-toggle')
                 .addClass('widget-combo-carrot-btn')
                 .attr('data-toggle', 'dropdown')
                 .append($('<span />').addClass("caret"))
                 .appendTo(this.$buttongroup);
             this.$droplist = $('<ul />')
                 .addClass('dropdown-menu')
                 .appendTo(this.$buttongroup);
 
             this.model.on('change:button_style', function(model, value) {
                 this.update_button_style();
             }, this);
             this.update_button_style('');
             
             // Set defaults.
             this.update();
         },
         
         update : function(options){
             /**
              * Update the contents of this view
              *
              * Called when the model is changed.  The model may have been
              * changed by another view or by a state update from the back-end.
              */
 
             if (options === undefined || options.updated_view != this) {
                 var selected_item_text = this.model.get('selected_label');
                 if (selected_item_text.trim().length === 0) {
                     this.$droplabel.html("&nbsp;");
                 } else {
                     this.$droplabel.text(selected_item_text);
                 }
                 
                 var items = this.model.get('_options_labels');
                 var $replace_droplist = $('<ul />')
                     .addClass('dropdown-menu');
                 // Copy the style
                 $replace_droplist.attr('style', this.$droplist.attr('style'));
                 var that = this;
                 _.each(items, function(item, i) {
                     var item_button = $('<a href="#"/>')
                         .text(item)
                         .on('click', $.proxy(that.handle_click, that));
                     $replace_droplist.append($('<li />').append(item_button));
                 });
 
                 this.$droplist.replaceWith($replace_droplist);
                 this.$droplist.remove();
                 this.$droplist = $replace_droplist;
                 
                 if (this.model.get('disabled')) {
                     this.$buttongroup.attr('disabled','disabled');
                     this.$droplabel.attr('disabled','disabled');
                     this.$dropbutton.attr('disabled','disabled');
                     this.$droplist.attr('disabled','disabled');
                 } else {
                     this.$buttongroup.removeAttr('disabled');
                     this.$droplabel.removeAttr('disabled');
                     this.$dropbutton.removeAttr('disabled');
                     this.$droplist.removeAttr('disabled');
                 }
 
                 var description = this.model.get('description');
                 if (description.length === 0) {
                     this.$label.hide();
                 } else {
                     this.typeset(this.$label, description);
                     this.$label.show();
                 }
             }
             return DropdownView.__super__.update.apply(this);
         },
 
         update_button_style: function(previous_trait_value) {
             var class_map = {
                 primary: ['btn-primary'],
                 success: ['btn-success'],
                 info: ['btn-info'],
                 warning: ['btn-warning'],
                 danger: ['btn-danger']
             };
             this.update_mapped_classes(class_map, 'button_style', previous_trait_value, this.$droplabel);
             this.update_mapped_classes(class_map, 'button_style', previous_trait_value, this.$dropbutton);
         },
 
         update_attr: function(name, value) {
             /**
              * Set a css attr of the widget view.
              */
             if (name.substring(0, 6) == 'border' || name == 'background' || name == 'color') {
                 this.$droplabel.css(name, value);
                 this.$dropbutton.css(name, value);
                 this.$droplist.css(name, value);
             } else if (name == 'width') {
                 this.$droplist.css(name, value);
                 this.$droplabel.css(name, value);
             } else if (name == 'padding') {
                 this.$droplist.css(name, value);
                 this.$buttongroup.css(name, value);
             } else if (name == 'margin') {
                 this.$buttongroup.css(name, value);
             } else if (name == 'height') {
                 this.$droplabel.css(name, value);
                 this.$dropbutton.css(name, value);
             } else if (name == 'padding' || name == 'margin') {
                 this.$el.css(name, value);
             } else {
                 this.$droplist.css(name, value);
                 this.$droplabel.css(name, value);
             }
         },
 
         handle_click: function (e) {
             /**
              * Handle when a value is clicked.
              *
              * Calling model.set will trigger all of the other views of the 
              * model to update.
              */
             this.model.set('selected_label', $(e.target).text(), {updated_view: this});
             this.touch();
 
             // Manually hide the droplist.
             e.stopPropagation();
             e.preventDefault();
             this.$buttongroup.removeClass('open');
         },
         
     });
 
 
     var RadioButtonsView = widget.DOMWidgetView.extend({    
         render : function(){
             /**
              * Called when view is rendered.
              */
             this.$el
                 .addClass('widget-hbox widget-radio');
             this.$label = $('<div />')
                 .appendTo(this.$el)
                 .addClass('widget-label')
                 .hide();
             this.$container = $('<div />')
                 .appendTo(this.$el)
                 .addClass('widget-radio-box');
             this.update();
         },
         
         update : function(options){
             /**
              * Update the contents of this view
              *
              * Called when the model is changed.  The model may have been 
              * changed by another view or by a state update from the back-end.
              */
             if (options === undefined || options.updated_view != this) {
                 // Add missing items to the DOM.
                 var items = this.model.get('_options_labels');
                 var disabled = this.model.get('disabled');
                 var that = this;
                 _.each(items, function(item, index) {
                     var item_query = ' :input[data-value="' + encodeURIComponent(item) + '"]';
                     if (that.$el.find(item_query).length === 0) {
                         var $label = $('<label />')
                             .addClass('radio')
                             .text(item)
                             .appendTo(that.$container);
                         
                         $('<input />')
                             .attr('type', 'radio')
                             .addClass(that.model)
                             .val(item)
                             .attr('data-value', encodeURIComponent(item))
                             .prependTo($label)
                             .on('click', $.proxy(that.handle_click, that));
                     }
                     
                     var $item_element = that.$container.find(item_query);
                     if (that.model.get('selected_label') == item) {
                         $item_element.prop('checked', true);
                     } else {
                         $item_element.prop('checked', false);
                     }
                     $item_element.prop('disabled', disabled);
                 });
                 
                 // Remove items that no longer exist.
                 this.$container.find('input').each(function(i, obj) {
                     var value = $(obj).val();
                     var found = false;
                     _.each(items, function(item, index) {
                         if (item == value) {
                             found = true;
                             return false;
                         }
                     });
                     
                     if (!found) {
                         $(obj).parent().remove();
                     }
                 });
 
                 var description = this.model.get('description');
                 if (description.length === 0) {
                     this.$label.hide();
                 } else {
                     this.$label.text(description);
                     this.typeset(this.$label, description);
                     this.$label.show();
                 }
             }
             return RadioButtonsView.__super__.update.apply(this);
         },
 
         update_attr: function(name, value) {
             /**
              * Set a css attr of the widget view.
              */
             if (name == 'padding' || name == 'margin') {
                 this.$el.css(name, value);
             } else {
                 this.$container.css(name, value);
             }
         },
 
         handle_click: function (e) {
             /**
              * Handle when a value is clicked.
              *
              * Calling model.set will trigger all of the other views of the 
              * model to update.
              */
             this.model.set('selected_label', $(e.target).val(), {updated_view: this});
             this.touch();
         },
     });
     
 
     var ToggleButtonsView = widget.DOMWidgetView.extend({
         initialize: function() {
             this._css_state = {};
             ToggleButtonsView.__super__.initialize.apply(this, arguments);
         },
 
         render: function() {
             /**
              * Called when view is rendered.
              */
             this.$el
                 .addClass('widget-hbox widget-toggle-buttons');
             this.$label = $('<div />')
                 .appendTo(this.$el)
                 .addClass('widget-label')
                 .hide();
             this.$buttongroup = $('<div />')
                 .addClass('btn-group')
                 .appendTo(this.$el);
 
             this.model.on('change:button_style', function(model, value) {
                 this.update_button_style();
             }, this);
             this.update_button_style('');
             this.update();
         },
         
         update : function(options){
             /**
              * Update the contents of this view
              *
              * Called when the model is changed.  The model may have been 
              * changed by another view or by a state update from the back-end.
              */
             if (options === undefined || options.updated_view != this) {
                 // Add missing items to the DOM.
                 var items = this.model.get('_options_labels');
                 var disabled = this.model.get('disabled');
                 var that = this;
                 var item_html;
                 _.each(items, function(item, index) {
                     if (item.trim().length === 0) {
                         item_html = "&nbsp;";
                     } else {
                         item_html = utils.escape_html(item);
                     }
                     var item_query = '[data-value="' + encodeURIComponent(item) + '"]';
                     var $item_element = that.$buttongroup.find(item_query);
                     if (!$item_element.length) {
                         $item_element = $('<button/>')
                             .attr('type', 'button')
                             .addClass('btn btn-default')
                             .html(item_html)
                             .appendTo(that.$buttongroup)
                             .attr('data-value', encodeURIComponent(item))
                             .attr('value', item)
                             .on('click', $.proxy(that.handle_click, that));
                         that.update_style_traits($item_element);
                     }
                     if (that.model.get('selected_label') == item) {
                         $item_element.addClass('active');
                     } else {
                         $item_element.removeClass('active');
                     }
                     $item_element.prop('disabled', disabled); 
                 });
                 
                 // Remove items that no longer exist.
                 this.$buttongroup.find('button').each(function(i, obj) {
                     var value = $(obj).attr('value');
                     var found = false;
                     _.each(items, function(item, index) {
                         if (item == value) {
                             found = true;
                             return false;
                         }
                     });
 
                     if (!found) {
                         $(obj).remove();
                     }
                 });
 
                 var description = this.model.get('description');
                 if (description.length === 0) {
                     this.$label.hide();
                 } else {
                     this.$label.text();
                     this.typeset(this.$label, description);
                     this.$label.show();
                 }
             }
             return ToggleButtonsView.__super__.update.apply(this);
         },
 
         update_attr: function(name, value) {
             /**
              * Set a css attr of the widget view.
              */
             if (name == 'padding' || name == 'margin') {
                 this.$el.css(name, value);
             } else {
                 this._css_state[name] = value;
                 this.update_style_traits();
             }
         },
 
         update_style_traits: function(button) {
             for (var name in this._css_state) {
                 if (this._css_state.hasOwnProperty(name)) {
                     if (name == 'margin') {
                         this.$buttongroup.css(name, this._css_state[name]);
                     } else if (name != 'width') {
                         if (button) {
                             button.css(name, this._css_state[name]);
                         } else {
                             this.$buttongroup.find('button').css(name, this._css_state[name]);
                         }
                     }
                 }
             }
         },
 
         update_button_style: function(previous_trait_value) {
             var class_map = {
                 primary: ['btn-primary'],
                 success: ['btn-success'],
                 info: ['btn-info'],
                 warning: ['btn-warning'],
                 danger: ['btn-danger']
             };
             this.update_mapped_classes(class_map, 'button_style', previous_trait_value, this.$buttongroup.find('button'));
         },
 
         handle_click: function (e) {
             /**
              * Handle when a value is clicked.
              *
              * Calling model.set will trigger all of the other views of the 
              * model to update.
              */
             this.model.set('selected_label', $(e.target).attr('value'), {updated_view: this});
             this.touch();
         },    
     });
     
 
     var SelectView = widget.DOMWidgetView.extend({    
         render : function(){
             /**
              * Called when view is rendered.
              */
             this.$el
                 .addClass('widget-hbox widget-select');
             this.$label = $('<div />')
                 .appendTo(this.$el)
                 .addClass('widget-label')
                 .hide();
             this.$listbox = $('<select />')
                 .addClass('widget-listbox form-control')
                 .attr('size', 6)
-                .appendTo(this.$el);
+                .appendTo(this.$el)
+                .on('change', $.proxy(this.handle_change, this));
             this.update();
         },
         
         update : function(options){
             /**
              * Update the contents of this view
              *
              * Called when the model is changed.  The model may have been 
              * changed by another view or by a state update from the back-end.
              */
             if (options === undefined || options.updated_view != this) {
                 // Add missing items to the DOM.
                 var items = this.model.get('_options_labels');
                 var that = this;
                 _.each(items, function(item, index) {
                    var item_query = 'option[data-value="' + encodeURIComponent(item) + '"]';
                     if (that.$listbox.find(item_query).length === 0) {
                         $('<option />')
                             .text(item)
                             .attr('data-value', encodeURIComponent(item))
                             .attr('selected_label', item)
-                            .appendTo(that.$listbox)
-                            .on('click', $.proxy(that.handle_click, that));
+                            .appendTo(that.$listbox);
                     } 
                 });
 
                 // Select the correct element
                 this.$listbox.val(this.model.get('selected_label'));
                 
                 // Disable listbox if needed
                 var disabled = this.model.get('disabled');
                 this.$listbox.prop('disabled', disabled);
 
                 // Remove items that no longer exist.
                 this.$listbox.find('option').each(function(i, obj) {
                     var value = $(obj).text();
                     var found = false;
                     _.each(items, function(item, index) {
                         if (item == value) {
                             found = true;
                             return false;
                         }
                     });
                     
                     if (!found) {
                         $(obj).remove();
                     }
                 });
 
                 var description = this.model.get('description');
                 if (description.length === 0) {
                     this.$label.hide();
                 } else {
                     this.typeset(this.$label, description);
                     this.$label.show();
                 }
             }
             return SelectView.__super__.update.apply(this);
         },
 
         update_attr: function(name, value) {
             /**
              * Set a css attr of the widget view.
              */
             if (name == 'padding' || name == 'margin') {
                 this.$el.css(name, value);
             } else {
                 this.$listbox.css(name, value);
             }
         },
 
-        handle_click: function (e) {
+        handle_change: function (e) {
             /**
-             * Handle when a value is clicked.
+             * Handle when a new value is selected.
              *
              * Calling model.set will trigger all of the other views of the 
              * model to update.
              */
-            this.model.set('selected_label', $(e.target).text(), {updated_view: this});
+            this.model.set('selected_label', this.$listbox.val(), {updated_view: this});
             this.touch();
         },
     });
+
+
     var SelectMultipleView = SelectView.extend({
         render: function(){
+            /**
+             * Called when view is rendered.
+             */
             SelectMultipleView.__super__.render.apply(this);
             this.$el.removeClass('widget-select')
               .addClass('widget-select-multiple');
             this.$listbox.attr('multiple', true)
-              .on('input', $.proxy(this.handle_click, this));
+              .on('change', $.proxy(this.handle_change, this));
             return this;
         },
 
         update: function(){
+            /**
+             * Update the contents of this view
+             *
+             * Called when the model is changed.  The model may have been 
+             * changed by another view or by a state update from the back-end.
+             */
             SelectMultipleView.__super__.update.apply(this, arguments);
             this.$listbox.val(this.model.get('selected_labels'));
         },
 
-        handle_click: function (e) {
-            // Handle when a value is clicked.
-
-            // Calling model.set will trigger all of the other views of the
-            // model to update.
+        handle_change: function (e) {
+            /**
+             * Handle when a new value is selected.
+             *
+             * Calling model.set will trigger all of the other views of the 
+             * model to update.
+             */
             this.model.set('selected_labels',
                 (this.$listbox.val() || []).slice(),
                 {updated_view: this});
             this.touch();
         },
     });
     
+
     return {
         'DropdownView': DropdownView,
         'RadioButtonsView': RadioButtonsView,
         'ToggleButtonsView': ToggleButtonsView,
         'SelectView': SelectView,
         'SelectMultipleView': SelectMultipleView,
     };
 });