Splitter.html
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<pre class="prettyprint lang-js"><span id='Ext-resizer-Splitter'>/**
</span> * This class functions **between siblings of a {@link Ext.layout.container.VBox VBox} or {@link Ext.layout.container.HBox HBox}
* layout** to resize both immediate siblings.
*
* A Splitter will preserve the flex ratio of any flexed siblings it is required to resize. It does this by setting the `flex` property of *all* flexed siblings
* to equal their pixel size. The actual numerical `flex` property in the Components will change, but the **ratio** to the total flex value will be preserved.
*
* A Splitter may be configured to show a centered mini-collapse tool orientated to collapse the {@link #collapseTarget}.
* The Splitter will then call that sibling Panel's {@link Ext.panel.Panel#method-collapse collapse} or {@link Ext.panel.Panel#method-expand expand} method
* to perform the appropriate operation (depending on the sibling collapse state). To create the mini-collapse tool but take care
* of collapsing yourself, configure the splitter with `{@link #performCollapse}: false`.
*/
Ext.define('Ext.resizer.Splitter', {
extend: 'Ext.Component',
requires: ['Ext.XTemplate'],
uses: ['Ext.resizer.SplitterTracker'],
alias: 'widget.splitter',
childEls: [
'collapseEl'
],
renderTpl: [
'<tpl if="collapsible===true">',
'<div id="{id}-collapseEl" class="', Ext.baseCSSPrefix, 'collapse-el ',
Ext.baseCSSPrefix, 'layout-split-{collapseDir}">&#160;</div>',
'</tpl>'
],
baseCls: Ext.baseCSSPrefix + 'splitter',
collapsedClsInternal: Ext.baseCSSPrefix + 'splitter-collapsed',
// Default to tree, allow internal classes to disable resizing
canResize: true,
<span id='Ext-resizer-Splitter-cfg-collapsible'> /**
</span> * @cfg {Boolean} collapsible
* True to show a mini-collapse tool in the Splitter to toggle expand and collapse on the {@link #collapseTarget} Panel.
* Defaults to the {@link Ext.panel.Panel#collapsible collapsible} setting of the Panel.
*/
collapsible: false,
<span id='Ext-resizer-Splitter-cfg-performCollapse'> /**
</span> * @cfg {Boolean} performCollapse
* Set to false to prevent this Splitter's mini-collapse tool from managing the collapse
* state of the {@link #collapseTarget}.
*/
<span id='Ext-resizer-Splitter-cfg-collapseOnDblClick'> /**
</span> * @cfg {Boolean} collapseOnDblClick
* True to enable dblclick to toggle expand and collapse on the {@link #collapseTarget} Panel.
*/
collapseOnDblClick: true,
<span id='Ext-resizer-Splitter-cfg-defaultSplitMin'> /**
</span> * @cfg {Number} defaultSplitMin
* Provides a default minimum width or height for the two components
* that the splitter is between.
*/
defaultSplitMin: 40,
<span id='Ext-resizer-Splitter-cfg-defaultSplitMax'> /**
</span> * @cfg {Number} defaultSplitMax
* Provides a default maximum width or height for the two components
* that the splitter is between.
*/
defaultSplitMax: 1000,
<span id='Ext-resizer-Splitter-cfg-collapsedCls'> /**
</span> * @cfg {String} collapsedCls
* A class to add to the splitter when it is collapsed. See {@link #collapsible}.
*/
<span id='Ext-resizer-Splitter-cfg-collapseTarget'> /**
</span> * @cfg {String/Ext.panel.Panel} collapseTarget
* A string describing the relative position of the immediate sibling Panel to collapse. May be 'prev' or 'next'.
*
* Or the immediate sibling Panel to collapse.
*
* The orientation of the mini-collapse tool will be inferred from this setting.
*
* **Note that only Panels may be collapsed.**
*/
collapseTarget: 'next',
<span id='Ext-resizer-Splitter-property-orientation'> /**
</span> * @property {String} orientation
* Orientation of this Splitter. `'vertical'` when used in an hbox layout, `'horizontal'`
* when used in a vbox layout.
*/
horizontal: false,
vertical: false,
<span id='Ext-resizer-Splitter-method-getTrackerConfig'> /**
</span> * Returns the config object (with an `xclass` property) for the splitter tracker. This
* is overridden by {@link Ext.resizer.BorderSplitter BorderSplitter} to create a
* {@link Ext.resizer.BorderSplitterTracker BorderSplitterTracker}.
* @protected
*/
getTrackerConfig: function () {
return {
xclass: 'Ext.resizer.SplitterTracker',
el: this.el,
splitter: this
};
},
beforeRender: function() {
var me = this,
target = me.getCollapseTarget(),
collapseDir = me.getCollapseDirection(),
vertical = me.vertical,
fixedSizeProp = vertical ? 'width' : 'height',
stretchSizeProp = vertical ? 'height' : 'width',
cls;
me.callParent();
if (!me.hasOwnProperty(stretchSizeProp)) {
me[stretchSizeProp] = '100%';
}
if (!me.hasOwnProperty(fixedSizeProp)) {
me[fixedSizeProp] = 5;
}
if (target.collapsed) {
me.addCls(me.collapsedClsInternal);
}
cls = me.baseCls + '-' + me.orientation;
me.addCls(cls);
if (!me.canResize) {
me.addCls(cls + '-noresize');
}
Ext.applyIf(me.renderData, {
collapseDir: collapseDir,
collapsible: me.collapsible || target.collapsible
});
},
onRender: function() {
var me = this;
me.callParent(arguments);
// Add listeners on the mini-collapse tool unless performCollapse is set to false
if (me.performCollapse !== false) {
if (me.renderData.collapsible) {
me.mon(me.collapseEl, 'click', me.toggleTargetCmp, me);
}
if (me.collapseOnDblClick) {
me.mon(me.el, 'dblclick', me.toggleTargetCmp, me);
}
}
// Ensure the mini collapse icon is set to the correct direction when the target is collapsed/expanded by any means
me.mon(me.getCollapseTarget(), {
collapse: me.onTargetCollapse,
expand: me.onTargetExpand,
scope: me
});
me.el.unselectable();
if (me.canResize) {
me.tracker = Ext.create(me.getTrackerConfig());
// Relay the most important events to our owner (could open wider later):
me.relayEvents(me.tracker, [ 'beforedragstart', 'dragstart', 'dragend' ]);
}
},
getCollapseDirection: function() {
var me = this,
dir = me.collapseDirection,
collapseTarget, idx, items, type;
if (!dir) {
collapseTarget = me.collapseTarget;
if (collapseTarget.isComponent) {
dir = collapseTarget.collapseDirection;
}
if (!dir) {
// Avoid duplication of string tests.
// Create a two bit truth table of the configuration of the Splitter:
// Collapse Target | orientation
// 0 0 = next, horizontal
// 0 1 = next, vertical
// 1 0 = prev, horizontal
// 1 1 = prev, vertical
type = me.ownerCt.layout.type;
if (collapseTarget.isComponent) {
items = me.ownerCt.items;
idx = Number(items.indexOf(collapseTarget) == items.indexOf(me) - 1) << 1 | Number(type == 'hbox');
} else {
idx = Number(me.collapseTarget == 'prev') << 1 | Number(type == 'hbox');
}
// Read the data out the truth table
dir = ['bottom', 'right', 'top', 'left'][idx];
}
me.collapseDirection = dir;
}
me.orientation = (dir == 'top' || dir == 'bottom') ? 'horizontal' : 'vertical';
me[me.orientation] = true;
return dir;
},
getCollapseTarget: function() {
var me = this;
return me.collapseTarget.isComponent ? me.collapseTarget : me.collapseTarget == 'prev' ? me.previousSibling() : me.nextSibling();
},
onTargetCollapse: function(target) {
this.el.addCls([this.collapsedClsInternal, this.collapsedCls]);
},
onTargetExpand: function(target) {
this.el.removeCls([this.collapsedClsInternal, this.collapsedCls]);
},
toggleTargetCmp: function(e, t) {
var cmp = this.getCollapseTarget(),
placeholder = cmp.placeholder,
toggle;
if (placeholder && !placeholder.hidden) {
toggle = true;
} else {
toggle = !cmp.hidden;
}
if (toggle) {
if (cmp.collapsed) {
cmp.expand();
} else if (cmp.collapseDirection) {
cmp.collapse();
} else {
cmp.collapse(this.renderData.collapseDir);
}
}
},
/*
* Work around IE bug. %age margins do not get recalculated on element resize unless repaint called.
*/
setSize: function() {
var me = this;
me.callParent(arguments);
if (Ext.isIE && me.el) {
me.el.repaint();
}
},
beforeDestroy: function(){
Ext.destroy(this.tracker);
this.callParent();
}
});
</pre>
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