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.layout.ContainerLayout |
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9 | * <p>The ContainerLayout class is the default layout manager delegated by {@link Ext.Container} to |
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10 | * render any child Components when no <tt>{@link Ext.Container#layout layout}</tt> is configured into |
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11 | * a {@link Ext.Container Container}. ContainerLayout provides the basic foundation for all other layout |
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12 | * classes in Ext. It simply renders all child Components into the Container, performing no sizing or |
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13 | * positioning services. To utilize a layout that provides sizing and positioning of child Components, |
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14 | * specify an appropriate <tt>{@link Ext.Container#layout layout}</tt>.</p> |
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15 | * <p>This class is intended to be extended or created via the <tt><b>{@link Ext.Container#layout layout}</b></tt> |
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16 | * configuration property. See <tt><b>{@link Ext.Container#layout}</b></tt> for additional details.</p> |
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17 | */ |
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18 | Ext.layout.ContainerLayout = function(config){ |
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19 | Ext.apply(this, config); |
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20 | }; |
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21 | |
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22 | Ext.layout.ContainerLayout.prototype = { |
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23 | /** |
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24 | * @cfg {String} extraCls |
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25 | * <p>An optional extra CSS class that will be added to the container. This can be useful for adding |
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26 | * customized styles to the container or any of its children using standard CSS rules. See |
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27 | * {@link Ext.Component}.{@link Ext.Component#ctCls ctCls} also.</p> |
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28 | * <p><b>Note</b>: <tt>extraCls</tt> defaults to <tt>''</tt> except for the following classes |
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29 | * which assign a value by default: |
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30 | * <div class="mdetail-params"><ul> |
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31 | * <li>{@link Ext.layout.AbsoluteLayout Absolute Layout} : <tt>'x-abs-layout-item'</tt></li> |
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32 | * <li>{@link Ext.layout.Box Box Layout} : <tt>'x-box-item'</tt></li> |
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33 | * <li>{@link Ext.layout.ColumnLayout Column Layout} : <tt>'x-column'</tt></li> |
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34 | * </ul></div> |
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35 | * To configure the above Classes with an extra CSS class append to the default. For example, |
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36 | * for ColumnLayout:<pre><code> |
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37 | * extraCls: 'x-column custom-class' |
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38 | * </code></pre> |
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39 | * </p> |
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40 | */ |
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41 | /** |
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42 | * @cfg {Boolean} renderHidden |
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43 | * True to hide each contained item on render (defaults to false). |
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44 | */ |
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45 | |
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46 | /** |
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47 | * A reference to the {@link Ext.Component} that is active. For example, <pre><code> |
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48 | * if(myPanel.layout.activeItem.id == 'item-1') { ... } |
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49 | * </code></pre> |
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50 | * <tt>activeItem</tt> only applies to layout styles that can display items one at a time |
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51 | * (like {@link Ext.layout.AccordionLayout}, {@link Ext.layout.CardLayout} |
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52 | * and {@link Ext.layout.FitLayout}). Read-only. Related to {@link Ext.Container#activeItem}. |
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53 | * @type {Ext.Component} |
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54 | * @property activeItem |
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55 | */ |
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56 | |
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57 | // private |
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58 | monitorResize:false, |
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59 | // private |
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60 | activeItem : null, |
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61 | |
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62 | // private |
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63 | layout : function(){ |
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64 | var target = this.container.getLayoutTarget(); |
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65 | this.onLayout(this.container, target); |
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66 | this.container.fireEvent('afterlayout', this.container, this); |
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67 | }, |
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68 | |
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69 | // private |
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70 | onLayout : function(ct, target){ |
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71 | this.renderAll(ct, target); |
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72 | }, |
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73 | |
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74 | // private |
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75 | isValidParent : function(c, target){ |
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76 | return target && c.getDomPositionEl().dom.parentNode == (target.dom || target); |
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77 | }, |
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78 | |
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79 | // private |
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80 | renderAll : function(ct, target){ |
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81 | var items = ct.items.items; |
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82 | for(var i = 0, len = items.length; i < len; i++) { |
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83 | var c = items[i]; |
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84 | if(c && (!c.rendered || !this.isValidParent(c, target))){ |
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85 | this.renderItem(c, i, target); |
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86 | } |
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87 | } |
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88 | }, |
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89 | |
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90 | // private |
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91 | renderItem : function(c, position, target){ |
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92 | if(c && !c.rendered){ |
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93 | c.render(target, position); |
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94 | this.configureItem(c, position); |
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95 | }else if(c && !this.isValidParent(c, target)){ |
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96 | if(typeof position == 'number'){ |
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97 | position = target.dom.childNodes[position]; |
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98 | } |
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99 | target.dom.insertBefore(c.getDomPositionEl().dom, position || null); |
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100 | c.container = target; |
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101 | this.configureItem(c, position); |
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102 | } |
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103 | }, |
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104 | |
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105 | // private |
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106 | configureItem: function(c, position){ |
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107 | if(this.extraCls){ |
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108 | var t = c.getPositionEl ? c.getPositionEl() : c; |
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109 | t.addClass(this.extraCls); |
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110 | } |
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111 | if (this.renderHidden && c != this.activeItem) { |
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112 | c.hide(); |
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113 | } |
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114 | if(c.doLayout){ |
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115 | c.doLayout(false, this.forceLayout); |
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116 | } |
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117 | }, |
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118 | |
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119 | // private |
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120 | onResize: function(){ |
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121 | if(this.container.collapsed){ |
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122 | return; |
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123 | } |
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124 | var b = this.container.bufferResize; |
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125 | if(b){ |
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126 | if(!this.resizeTask){ |
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127 | this.resizeTask = new Ext.util.DelayedTask(this.runLayout, this); |
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128 | this.resizeBuffer = typeof b == 'number' ? b : 100; |
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129 | } |
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130 | this.resizeTask.delay(this.resizeBuffer); |
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131 | }else{ |
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132 | this.runLayout(); |
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133 | } |
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134 | }, |
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135 | |
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136 | // private |
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137 | runLayout: function(){ |
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138 | this.layout(); |
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139 | this.container.onLayout(); |
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140 | }, |
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141 | |
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142 | // private |
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143 | setContainer : function(ct){ |
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144 | if(this.monitorResize && ct != this.container){ |
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145 | if(this.container){ |
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146 | this.container.un('resize', this.onResize, this); |
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147 | this.container.un('bodyresize', this.onResize, this); |
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148 | } |
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149 | if(ct){ |
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150 | ct.on({ |
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151 | scope: this, |
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152 | resize: this.onResize, |
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153 | bodyresize: this.onResize |
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154 | }); |
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155 | } |
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156 | } |
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157 | this.container = ct; |
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158 | }, |
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159 | |
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160 | // private |
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161 | parseMargins : function(v){ |
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162 | if(typeof v == 'number'){ |
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163 | v = v.toString(); |
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164 | } |
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165 | var ms = v.split(' '); |
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166 | var len = ms.length; |
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167 | if(len == 1){ |
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168 | ms[1] = ms[0]; |
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169 | ms[2] = ms[0]; |
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170 | ms[3] = ms[0]; |
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171 | } |
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172 | if(len == 2){ |
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173 | ms[2] = ms[0]; |
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174 | ms[3] = ms[1]; |
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175 | } |
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176 | if(len == 3){ |
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177 | ms[3] = ms[1]; |
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178 | } |
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179 | return { |
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180 | top:parseInt(ms[0], 10) || 0, |
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181 | right:parseInt(ms[1], 10) || 0, |
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182 | bottom:parseInt(ms[2], 10) || 0, |
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183 | left:parseInt(ms[3], 10) || 0 |
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184 | }; |
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185 | }, |
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186 | |
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187 | /** |
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188 | * The {@link Template Ext.Template} used by Field rendering layout classes (such as |
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189 | * {@link Ext.layout.FormLayout}) to create the DOM structure of a fully wrapped, |
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190 | * labeled and styled form Field. A default Template is supplied, but this may be |
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191 | * overriden to create custom field structures. The template processes values returned from |
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192 | * {@link Ext.layout.FormLayout#getTemplateArgs}. |
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193 | * @property fieldTpl |
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194 | * @type Ext.Template |
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195 | */ |
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196 | fieldTpl: (function() { |
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197 | var t = new Ext.Template( |
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198 | '<div class="x-form-item {itemCls}" tabIndex="-1">', |
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199 | '<label for="{id}" style="{labelStyle}" class="x-form-item-label">{label}{labelSeparator}</label>', |
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200 | '<div class="x-form-element" id="x-form-el-{id}" style="{elementStyle}">', |
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201 | '</div><div class="{clearCls}"></div>', |
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202 | '</div>' |
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203 | ); |
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204 | t.disableFormats = true; |
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205 | return t.compile(); |
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206 | })(), |
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207 | |
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208 | /* |
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209 | * Destroys this layout. This is a template method that is empty by default, but should be implemented |
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210 | * by subclasses that require explicit destruction to purge event handlers or remove DOM nodes. |
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211 | * @protected |
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212 | */ |
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213 | destroy : Ext.emptyFn |
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214 | }; |
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215 | Ext.Container.LAYOUTS['auto'] = Ext.layout.ContainerLayout; |
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