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<pre class="prettyprint lang-js"><span id='Ext-grid-AbstractSelectionModel-method-constructor'><span id='Ext-grid-AbstractSelectionModel'>/**
</span></span> * @class Ext.grid.AbstractSelectionModel
* @extends Ext.util.Observable
* Abstract base class for grid SelectionModels. It provides the interface that should be
* implemented by descendant classes. This class should not be directly instantiated.
* @constructor
*/
Ext.grid.AbstractSelectionModel = Ext.extend(Ext.util.Observable, {
<span id='Ext-grid-AbstractSelectionModel-property-grid'> /**
</span> * The GridPanel for which this SelectionModel is handling selection. Read-only.
* @type Object
* @property grid
*/
constructor : function(){
this.locked = false;
Ext.grid.AbstractSelectionModel.superclass.constructor.call(this);
},
<span id='global-method-init'> /** @ignore Called by the grid automatically. Do not call directly. */
</span> init : function(grid){
this.grid = grid;
if(this.lockOnInit){
delete this.lockOnInit;
this.locked = false;
this.lock();
}
this.initEvents();
},
<span id='Ext-grid-AbstractSelectionModel-method-lock'> /**
</span> * Locks the selections.
*/
lock : function(){
if(!this.locked){
this.locked = true;
// If the grid has been set, then the view is already initialized.
var g = this.grid;
if(g){
g.getView().on({
scope: this,
beforerefresh: this.sortUnLock,
refresh: this.sortLock
});
}else{
this.lockOnInit = true;
}
}
},
<span id='Ext-grid-AbstractSelectionModel-method-sortLock'> // set the lock states before and after a view refresh
</span> sortLock : function() {
this.locked = true;
},
<span id='Ext-grid-AbstractSelectionModel-method-sortUnLock'> // set the lock states before and after a view refresh
</span> sortUnLock : function() {
this.locked = false;
},
<span id='Ext-grid-AbstractSelectionModel-method-unlock'> /**
</span> * Unlocks the selections.
*/
unlock : function(){
if(this.locked){
this.locked = false;
var g = this.grid,
gv;
// If the grid has been set, then the view is already initialized.
if(g){
gv = g.getView();
gv.un('beforerefresh', this.sortUnLock, this);
gv.un('refresh', this.sortLock, this);
}else{
delete this.lockOnInit;
}
}
},
<span id='Ext-grid-AbstractSelectionModel-method-isLocked'> /**
</span> * Returns true if the selections are locked.
* @return {Boolean}
*/
isLocked : function(){
return this.locked;
},
<span id='Ext-grid-AbstractSelectionModel-method-destroy'> destroy: function(){
</span> this.unlock();
this.purgeListeners();
}
});</pre>
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