| 1 | /*! |
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| 2 | * Ext JS Library 3.0.0 |
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| 3 | * Copyright(c) 2006-2009 Ext JS, LLC |
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| 4 | * licensing@extjs.com |
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| 5 | * http://www.extjs.com/license |
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| 6 | */ |
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| 7 | Ext.ux.PanelResizer = Ext.extend(Ext.util.Observable, { |
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| 8 | minHeight: 0, |
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| 9 | maxHeight:10000000, |
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| 10 | |
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| 11 | constructor: function(config){ |
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| 12 | Ext.apply(this, config); |
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| 13 | this.events = {}; |
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| 14 | Ext.ux.PanelResizer.superclass.constructor.call(this, config); |
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| 15 | }, |
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| 16 | |
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| 17 | init : function(p){ |
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| 18 | this.panel = p; |
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| 19 | |
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| 20 | if(this.panel.elements.indexOf('footer')==-1){ |
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| 21 | p.elements += ',footer'; |
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| 22 | } |
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| 23 | p.on('render', this.onRender, this); |
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| 24 | }, |
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| 25 | |
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| 26 | onRender : function(p){ |
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| 27 | this.handle = p.footer.createChild({cls:'x-panel-resize'}); |
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| 28 | |
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| 29 | this.tracker = new Ext.dd.DragTracker({ |
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| 30 | onStart: this.onDragStart.createDelegate(this), |
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| 31 | onDrag: this.onDrag.createDelegate(this), |
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| 32 | onEnd: this.onDragEnd.createDelegate(this), |
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| 33 | tolerance: 3, |
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| 34 | autoStart: 300 |
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| 35 | }); |
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| 36 | this.tracker.initEl(this.handle); |
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| 37 | p.on('beforedestroy', this.tracker.destroy, this.tracker); |
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| 38 | }, |
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| 39 | |
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| 40 | // private |
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| 41 | onDragStart: function(e){ |
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| 42 | this.dragging = true; |
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| 43 | this.startHeight = this.panel.el.getHeight(); |
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| 44 | this.fireEvent('dragstart', this, e); |
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| 45 | }, |
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| 46 | |
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| 47 | // private |
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| 48 | onDrag: function(e){ |
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| 49 | this.panel.setHeight((this.startHeight-this.tracker.getOffset()[1]).constrain(this.minHeight, this.maxHeight)); |
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| 50 | this.fireEvent('drag', this, e); |
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| 51 | }, |
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| 52 | |
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| 53 | // private |
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| 54 | onDragEnd: function(e){ |
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| 55 | this.dragging = false; |
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| 56 | this.fireEvent('dragend', this, e); |
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| 57 | } |
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| 58 | }); |
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| 59 | Ext.preg('panelresizer', Ext.ux.PanelResizer); |
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