Custom Collapse Title in Layout

Any components can display on the title bar of a collapsed panel.

示例：

代码：

					
<div id="cc" class="easyui-layout" style="width:700px;height:350px;">
  <div data-options="region:'east',split:true,hideCollapsedContent:false" title="East" style="width:100px;"></div>
  <div data-options="region:'west',split:true,collapsed:true,
        hideExpandTool: true,
        expandMode: null,
        hideCollapsedContent: false,
        collapsedSize: 68,
        collapsedContent: function(){
          return $('#titlebar');
        }
      " title="West" style="width:100px;"></div>
  <div data-options="region:'center',title:'Main Title'">
    <table class="easyui-datagrid"
          data-options="
            url:'examples/layout/datagrid_data1.json',
            method:'get',
            border:false,
            singleSelect:true,
            fit:true,
            fitColumns:true
          ">
      <thead>
        <tr>
          <th data-options="field:'itemid'" width="80">Item ID</th>
          <th data-options="field:'productid'" width="100">Product ID</th>
          <th data-options="field:'listprice',align:'right'" width="80">List Price</th>
          <th data-options="field:'unitcost',align:'right'" width="80">Unit Cost</th>
          <th data-options="field:'attr1'" width="150">Attribute</th>
          <th data-options="field:'status',align:'center'" width="60">Status</th>
        </tr>
      </thead>
    </table>
  </div>
</div>
<div id="titlebar" style="padding:2px">
  <a href="javascript:void(0)" class="easyui-linkbutton" style="width:100%" data-options="iconCls:'layout-button-right'" onclick="$('#cc').layout('expand','west')"></a>
  <a href="javascript:void(0)" class="easyui-linkbutton" style="width:100%" data-options="iconCls:'icon-large-picture',size:'large',iconAlign:'top'">Picture</a>
  <a href="javascript:void(0)" class="easyui-linkbutton" style="width:100%" data-options="iconCls:'icon-large-shapes',size:'large',iconAlign:'top'">Shapes</a>
  <a href="javascript:void(0)" class="easyui-linkbutton" style="width:100%" data-options="iconCls:'icon-large-smartart',size:'large',iconAlign:'top'">SmartArt</a>
  <a href="javascript:void(0)" class="easyui-linkbutton" style="width:100%" data-options="iconCls:'icon-large-chart',size:'large',iconAlign:'top'">Chart</a>
</div>