src/editor/modules/documentToolbar/actionView.js

   1 define(function(require) {
   2
   3 'use strict';
   4 /* globals gettext */
   5
   6 var $ = require('libs/jquery'),
   7     Backbone = require('libs/backbone'),
   8     _ = require('libs/underscore'),
   9     viewTemplate = require('libs/text!modules/documentToolbar/templates/actionView.html'),
  10     buttonTemplate = require('libs/text!modules/documentToolbar/templates/actionViewButton.html'),
  11     selectionTemplate = require('libs/text!modules/documentToolbar/templates/actionViewSelection.html');
  12
  13
  14 viewTemplate = _.template(viewTemplate);
  15 buttonTemplate = _.template(buttonTemplate);
  16 selectionTemplate = _.template(selectionTemplate);
  17
  18 var iconExists = function(iconName) {
  19     /* globals window */
  20     var el = $('<i>').addClass('icon-' + iconName);
  21     $('body').append(el);
  22     var style = window.getComputedStyle(el[0]);
  23     var toret = /glyphicons/.test(style.backgroundImage) && !/14px 14px/.test(style.backgroundPosition);
  24     el.remove();
  25     return toret;
  26 };
  27
  28 var ActionView = Backbone.View.extend({
  29     events: {
  30         'mousedown .btn': 'onMouseDown',
  31         'click .btn': 'onExecute',
  32         'change select': 'onSelectionChange',
  33         'mouseenter': 'onMouseEnter',
  34         'mouseleave': 'onMouseLeave'
  35     },
  36     initialize: function() {
  37         this.action = this.options.action;
  38         this.action.on('paramsChanged', function() {
  39             this.render();
  40         }, this);
  41         this.setElement(viewTemplate());
  42     },
  43     render: function() {
  44         /* globals document */
  45
  46         var actionState = this.action.getState();
  47
  48         if(!actionState) {
  49             this.$el.html(buttonTemplate({label: gettext('error :('), iconName:''}));
  50             this._button().attr('disabled', true);
  51             return;
  52         }
  53
  54         var templateContext = {
  55             label: actionState.label || '?',
  56             iconName: (iconExists(actionState.icon)) ? actionState.icon : null,
  57             iconStyle: actionState.iconStyle
  58         },
  59             hovered = document.querySelectorAll(':hover'),
  60             hovers = false,
  61             button = this._button();
  62
  63         if(hovered.length && _.last(hovered) === button[0]) {
  64             hovers = true;
  65         }
  66
  67         this.$el.empty();
  68         _.pairs(this.action.definition.params).forEach(function(pair) {
  69             var paramName = pair[0],
  70                 paramDesc = pair[1],
  71                 widget;
  72             if(paramDesc.type === 'select') {
  73                 widget = $(selectionTemplate({
  74                     paramName: paramName,
  75                     options: paramDesc.options
  76                 }));
  77                 if(this.action.params[paramName]) {
  78                     widget.find('option[value=' + this.action.params[paramName].id + ']').attr('selected', true);
  79                 }
  80                 this.$el.append(widget);
  81             }
  82         }.bind(this));
  83
  84         this.$el.append(buttonTemplate(templateContext));
  85         button = this._button();
  86
  87         if(!actionState.allowed) {
  88             button.attr('disabled', true);
  89             button.wrap('<div style="position: relative;">');
  90             button.after('<div style="position: absolute; top:0; bottom:0; left:0; right: 0"></div>');
  91         }
  92
  93         if(actionState.toggled !== undefined) {
  94             button.toggleClass('active', actionState.toggled);
  95         }
  96
  97         if(hovers) {
  98             this.trigger('hover');
  99         }
 100     },
 101     onMouseEnter: function() {
 102         this.trigger('hover');
 103     },
 104     onMouseLeave: function() {
 105         this.trigger('leave');
 106     },
 107     onMouseDown: function() {
 108         this.trigger('mousedown');
 109     },
 110     onExecute: function() {
 111         this.action.execute(function(ret) {
 112             this.trigger('actionExecuted', this.action, ret);
 113         }.bind(this));
 114     },
 115     onSelectionChange: function(e) {
 116         var select = $(e.target),
 117             paramName = select.attr('param');
 118
 119         this.action.definition.params[paramName].options.some(function(option) {
 120             if(option.id.toString() === select.val()) {
 121                 this.action.updateWidgetParam(paramName, option);
 122                 return true; // break
 123             }
 124         }.bind(this));
 125     },
 126     _button: function() {
 127         return this.$el.find('button');
 128     }
 129 });
 130
 131 var create = function(action) {
 132     var view = new ActionView({action:action});
 133     view.render();
 134
 135     return {
 136         on: function() {
 137             view.on.apply(view, Array.prototype.slice.call(arguments, 0));
 138         },
 139         dom: view.$el,
 140     };
 141 };
 142
 143 return {
 144     create: create
 145 };
 146
 147 });