1 | /*! |
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2 | * Ext JS Library 3.0.0 |
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3 | * Copyright(c) 2006-2009 Ext JS, LLC |
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4 | * licensing@extjs.com |
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5 | * http://www.extjs.com/license |
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6 | */ |
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7 | /** |
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8 | * @class Ext.menu.Item |
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9 | * @extends Ext.menu.BaseItem |
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10 | * A base class for all menu items that require menu-related functionality (like sub-menus) and are not static |
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11 | * display items. Item extends the base functionality of {@link Ext.menu.BaseItem} by adding menu-specific |
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12 | * activation and click handling. |
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13 | * @constructor |
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14 | * Creates a new Item |
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15 | * @param {Object} config Configuration options |
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16 | * @xtype menuitem |
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17 | */ |
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18 | Ext.menu.Item = function(config){ |
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19 | Ext.menu.Item.superclass.constructor.call(this, config); |
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20 | if(this.menu){ |
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21 | this.menu = Ext.menu.MenuMgr.get(this.menu); |
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22 | } |
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23 | }; |
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24 | Ext.extend(Ext.menu.Item, Ext.menu.BaseItem, { |
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25 | /** |
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26 | * @property menu |
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27 | * @type Ext.menu.Menu |
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28 | * The submenu associated with this Item if one was configured. |
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29 | */ |
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30 | /** |
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31 | * @cfg {Mixed} menu (optional) Either an instance of {@link Ext.menu.Menu} or the config object for an |
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32 | * {@link Ext.menu.Menu} which acts as the submenu when this item is activated. |
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33 | */ |
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34 | /** |
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35 | * @cfg {String} icon The path to an icon to display in this item (defaults to Ext.BLANK_IMAGE_URL). If |
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36 | * icon is specified {@link #iconCls} should not be. |
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37 | */ |
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38 | /** |
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39 | * @cfg {String} iconCls A CSS class that specifies a background image that will be used as the icon for |
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40 | * this item (defaults to ''). If iconCls is specified {@link #icon} should not be. |
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41 | */ |
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42 | /** |
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43 | * @cfg {String} text The text to display in this item (defaults to ''). |
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44 | */ |
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45 | /** |
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46 | * @cfg {String} href The href attribute to use for the underlying anchor link (defaults to '#'). |
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47 | */ |
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48 | /** |
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49 | * @cfg {String} hrefTarget The target attribute to use for the underlying anchor link (defaults to ''). |
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50 | */ |
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51 | /** |
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52 | * @cfg {String} itemCls The default CSS class to use for menu items (defaults to 'x-menu-item') |
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53 | */ |
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54 | itemCls : 'x-menu-item', |
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55 | /** |
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56 | * @cfg {Boolean} canActivate True if this item can be visually activated (defaults to true) |
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57 | */ |
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58 | canActivate : true, |
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59 | /** |
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60 | * @cfg {Number} showDelay Length of time in milliseconds to wait before showing this item (defaults to 200) |
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61 | */ |
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62 | showDelay: 200, |
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63 | // doc'd in BaseItem |
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64 | hideDelay: 200, |
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65 | |
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66 | // private |
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67 | ctype: 'Ext.menu.Item', |
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68 | |
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69 | // private |
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70 | onRender : function(container, position){ |
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71 | if (!this.itemTpl) { |
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72 | this.itemTpl = Ext.menu.Item.prototype.itemTpl = new Ext.XTemplate( |
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73 | '<a id="{id}" class="{cls}" hidefocus="true" unselectable="on" href="{href}"', |
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74 | '<tpl if="hrefTarget">', |
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75 | ' target="{hrefTarget}"', |
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76 | '</tpl>', |
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77 | '>', |
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78 | '<img src="{icon}" class="x-menu-item-icon {iconCls}"/>', |
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79 | '<span class="x-menu-item-text">{text}</span>', |
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80 | '</a>' |
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81 | ); |
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82 | } |
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83 | var a = this.getTemplateArgs(); |
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84 | this.el = position ? this.itemTpl.insertBefore(position, a, true) : this.itemTpl.append(container, a, true); |
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85 | this.iconEl = this.el.child('img.x-menu-item-icon'); |
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86 | this.textEl = this.el.child('.x-menu-item-text'); |
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87 | Ext.menu.Item.superclass.onRender.call(this, container, position); |
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88 | }, |
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89 | |
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90 | getTemplateArgs: function() { |
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91 | return { |
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92 | id: this.id, |
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93 | cls: this.itemCls + (this.menu ? ' x-menu-item-arrow' : '') + (this.cls ? ' ' + this.cls : ''), |
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94 | href: this.href || '#', |
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95 | hrefTarget: this.hrefTarget, |
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96 | icon: this.icon || Ext.BLANK_IMAGE_URL, |
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97 | iconCls: this.iconCls || '', |
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98 | text: this.itemText||this.text||' ' |
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99 | }; |
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100 | }, |
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101 | |
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102 | /** |
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103 | * Sets the text to display in this menu item |
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104 | * @param {String} text The text to display |
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105 | */ |
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106 | setText : function(text){ |
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107 | this.text = text||' '; |
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108 | if(this.rendered){ |
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109 | this.textEl.update(this.text); |
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110 | this.parentMenu.layout.doAutoSize(); |
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111 | } |
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112 | }, |
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113 | |
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114 | /** |
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115 | * Sets the CSS class to apply to the item's icon element |
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116 | * @param {String} cls The CSS class to apply |
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117 | */ |
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118 | setIconClass : function(cls){ |
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119 | var oldCls = this.iconCls; |
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120 | this.iconCls = cls; |
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121 | if(this.rendered){ |
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122 | this.iconEl.replaceClass(oldCls, this.iconCls); |
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123 | } |
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124 | }, |
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125 | |
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126 | //private |
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127 | beforeDestroy: function(){ |
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128 | if (this.menu){ |
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129 | this.menu.destroy(); |
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130 | } |
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131 | Ext.menu.Item.superclass.beforeDestroy.call(this); |
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132 | }, |
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133 | |
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134 | // private |
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135 | handleClick : function(e){ |
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136 | if(!this.href){ // if no link defined, stop the event automatically |
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137 | e.stopEvent(); |
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138 | } |
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139 | Ext.menu.Item.superclass.handleClick.apply(this, arguments); |
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140 | }, |
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141 | |
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142 | // private |
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143 | activate : function(autoExpand){ |
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144 | if(Ext.menu.Item.superclass.activate.apply(this, arguments)){ |
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145 | this.focus(); |
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146 | if(autoExpand){ |
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147 | this.expandMenu(); |
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148 | } |
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149 | } |
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150 | return true; |
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151 | }, |
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152 | |
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153 | // private |
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154 | shouldDeactivate : function(e){ |
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155 | if(Ext.menu.Item.superclass.shouldDeactivate.call(this, e)){ |
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156 | if(this.menu && this.menu.isVisible()){ |
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157 | return !this.menu.getEl().getRegion().contains(e.getPoint()); |
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158 | } |
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159 | return true; |
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160 | } |
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161 | return false; |
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162 | }, |
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163 | |
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164 | // private |
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165 | deactivate : function(){ |
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166 | Ext.menu.Item.superclass.deactivate.apply(this, arguments); |
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167 | this.hideMenu(); |
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168 | }, |
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169 | |
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170 | // private |
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171 | expandMenu : function(autoActivate){ |
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172 | if(!this.disabled && this.menu){ |
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173 | clearTimeout(this.hideTimer); |
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174 | delete this.hideTimer; |
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175 | if(!this.menu.isVisible() && !this.showTimer){ |
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176 | this.showTimer = this.deferExpand.defer(this.showDelay, this, [autoActivate]); |
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177 | }else if (this.menu.isVisible() && autoActivate){ |
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178 | this.menu.tryActivate(0, 1); |
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179 | } |
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180 | } |
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181 | }, |
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182 | |
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183 | // private |
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184 | deferExpand : function(autoActivate){ |
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185 | delete this.showTimer; |
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186 | this.menu.show(this.container, this.parentMenu.subMenuAlign || 'tl-tr?', this.parentMenu); |
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187 | if(autoActivate){ |
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188 | this.menu.tryActivate(0, 1); |
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189 | } |
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190 | }, |
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191 | |
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192 | // private |
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193 | hideMenu : function(){ |
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194 | clearTimeout(this.showTimer); |
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195 | delete this.showTimer; |
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196 | if(!this.hideTimer && this.menu && this.menu.isVisible()){ |
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197 | this.hideTimer = this.deferHide.defer(this.hideDelay, this); |
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198 | } |
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199 | }, |
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200 | |
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201 | // private |
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202 | deferHide : function(){ |
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203 | delete this.hideTimer; |
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204 | if(this.menu.over){ |
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205 | this.parentMenu.setActiveItem(this, false); |
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206 | }else{ |
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207 | this.menu.hide(); |
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208 | } |
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209 | } |
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210 | }); |
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211 | Ext.reg('menuitem', Ext.menu.Item); |
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