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<pre class="prettyprint lang-js"><span id='Ext-chart-MaskLayer'>/**
</span> * @private
*/
Ext.define('Ext.chart.MaskLayer', {
extend: 'Ext.Component',
constructor: function(config) {
config = Ext.apply(config || {}, {
style: 'position:absolute;background-color:#888;cursor:move;opacity:0.6;border:1px solid #222;'
});
this.callParent([config]);
},
initComponent: function() {
var me = this;
me.callParent(arguments);
me.addEvents(
'mousedown',
'mouseup',
'mousemove',
'mouseenter',
'mouseleave'
);
},
initDraggable: function() {
this.callParent(arguments);
this.dd.onStart = function (e) {
var me = this,
comp = me.comp;
// Cache the start [X, Y] array
this.startPosition = comp.getPosition(true);
// If client Component has a ghost method to show a lightweight version of itself
// then use that as a drag proxy unless configured to liveDrag.
if (comp.ghost && !comp.liveDrag) {
me.proxy = comp.ghost();
me.dragTarget = me.proxy.header.el;
}
// Set the constrainTo Region before we start dragging.
if (me.constrain || me.constrainDelegate) {
me.constrainTo = me.calculateConstrainRegion();
}
};
}
});</pre>
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