docs/source/BoundList.html

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  18   <pre class="prettyprint lang-js"><span id='Ext-layout-component-BoundList'>/**
  19 </span> * Component layout for {@link Ext.view.BoundList}. Handles constraining the height to the configured maxHeight.
  20  * @class Ext.layout.component.BoundList
  21  * @extends Ext.layout.component.Component
  22  * @private
  23  */
  24 Ext.define('Ext.layout.component.BoundList', {
  25     extend: 'Ext.layout.component.Component',
  26     alias: 'layout.boundlist',
  27
  28     type: 'component',
  29
  30     beforeLayout: function() {
  31         return this.callParent(arguments) || this.owner.refreshed &gt; 0;
  32     },
  33
  34     onLayout : function(width, height) {
  35         var me = this,
  36             owner = me.owner,
  37             floating = owner.floating,
  38             el = owner.el,
  39             xy = el.getXY(),
  40             isNumber = Ext.isNumber,
  41             minWidth, maxWidth, minHeight, maxHeight,
  42             naturalWidth, naturalHeight, constrainedWidth, constrainedHeight, undef;
  43
  44         if (floating) {
  45             // Position offscreen so the natural width is not affected by the viewport's right edge
  46             el.setXY([-9999,-9999]);
  47         }
  48
  49         // Calculate initial layout
  50         me.setTargetSize(width, height);
  51
  52         // Handle min/maxWidth for auto-width
  53         if (!isNumber(width)) {
  54             minWidth = owner.minWidth;
  55             maxWidth = owner.maxWidth;
  56             if (isNumber(minWidth) || isNumber(maxWidth)) {
  57                 naturalWidth = el.getWidth();
  58                 if (naturalWidth &lt; minWidth) {
  59                     constrainedWidth = minWidth;
  60                 }
  61                 else if (naturalWidth &gt; maxWidth) {
  62                     constrainedWidth = maxWidth;
  63                 }
  64                 if (constrainedWidth) {
  65                     me.setTargetSize(constrainedWidth);
  66                 }
  67             }
  68         }
  69         // Handle min/maxHeight for auto-height
  70         if (!isNumber(height)) {
  71             minHeight = owner.minHeight;
  72             maxHeight = owner.maxHeight;
  73             if (isNumber(minHeight) || isNumber(maxHeight)) {
  74                 naturalHeight = el.getHeight();
  75                 if (naturalHeight &lt; minHeight) {
  76                     constrainedHeight = minHeight;
  77                 }
  78                 else if (naturalHeight &gt; maxHeight) {
  79                     constrainedHeight = maxHeight;
  80                 }
  81                 if (constrainedHeight) {
  82                     me.setTargetSize(undef, constrainedHeight);
  83                 }
  84             }
  85         }
  86
  87         if (floating) {
  88             // Restore position
  89             el.setXY(xy);
  90         }
  91     },
  92
  93     afterLayout: function() {
  94         var me = this,
  95             toolbar = me.owner.pagingToolbar;
  96         me.callParent();
  97         if (toolbar) {
  98             toolbar.doComponentLayout();
  99         }
 100     },
 101
 102     setTargetSize : function(width, height) {
 103         var me = this,
 104             owner = me.owner,
 105             listHeight = null,
 106             toolbar;
 107
 108         // Size the listEl
 109         if (Ext.isNumber(height)) {
 110             listHeight = height - owner.el.getFrameWidth('tb');
 111             toolbar = owner.pagingToolbar;
 112             if (toolbar) {
 113                 listHeight -= toolbar.getHeight();
 114             }
 115         }
 116         me.setElementSize(owner.listEl, null, listHeight);
 117
 118         me.callParent(arguments);
 119     }
 120
 121 });
 122 </pre>
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