docs/source/PanelResizer.html

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   8     <pre class="prettyprint lang-js">Ext.ux.PanelResizer = Ext.extend(Ext.util.Observable, {\r
   9     minHeight: 0,\r
  10     maxHeight:10000000,\r
  11 \r
  12     constructor: function(config){\r
  13         Ext.apply(this, config);\r
  14         this.events = {};\r
  15         Ext.ux.PanelResizer.superclass.constructor.call(this, config);\r
  16     },\r
  17 \r
  18     init : function(p){\r
  19         this.panel = p;\r
  20 \r
  21         if(this.panel.elements.indexOf('footer')==-1){\r
  22             p.elements += ',footer';\r
  23         }\r
  24         p.on('render', this.onRender, this);\r
  25     },\r
  26 \r
  27     onRender : function(p){\r
  28         this.handle = p.footer.createChild({cls:'x-panel-resize'});\r
  29 \r
  30         this.tracker = new Ext.dd.DragTracker({\r
  31             onStart: this.onDragStart.createDelegate(this),\r
  32             onDrag: this.onDrag.createDelegate(this),\r
  33             onEnd: this.onDragEnd.createDelegate(this),\r
  34             tolerance: 3,\r
  35             autoStart: 300\r
  36         });\r
  37         this.tracker.initEl(this.handle);\r
  38         p.on('beforedestroy', this.tracker.destroy, this.tracker);\r
  39     },\r
  40 \r
  41         // private\r
  42     onDragStart: function(e){\r
  43         this.dragging = true;\r
  44         this.startHeight = this.panel.el.getHeight();\r
  45         this.fireEvent('dragstart', this, e);\r
  46     },\r
  47 \r
  48         // private\r
  49     onDrag: function(e){\r
  50         this.panel.setHeight((this.startHeight-this.tracker.getOffset()[1]).constrain(this.minHeight, this.maxHeight));\r
  51         this.fireEvent('drag', this, e);\r
  52     },\r
  53 \r
  54         // private\r
  55     onDragEnd: function(e){\r
  56         this.dragging = false;\r
  57         this.fireEvent('dragend', this, e);\r
  58     }\r
  59 });\r
  60 Ext.preg('panelresizer', Ext.ux.PanelResizer);</pre>
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