Forked mumble-django project from https://bitbucket.org/Svedrin/mumble-django
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770 lines
25 KiB
770 lines
25 KiB
/*!
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* Ext JS Library 3.2.0
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* Copyright(c) 2006-2010 Ext JS, Inc.
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* licensing@extjs.com
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* http://www.extjs.com/license
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*/
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/**
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* @class Ext.Resizable
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* @extends Ext.util.Observable
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* <p>Applies drag handles to an element to make it resizable. The drag handles are inserted into the element
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* and positioned absolute. Some elements, such as a textarea or image, don't support this. To overcome that, you can wrap
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* the textarea in a div and set 'resizeChild' to true (or to the id of the element), <b>or</b> set wrap:true in your config and
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* the element will be wrapped for you automatically.</p>
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* <p>Here is the list of valid resize handles:</p>
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* <pre>
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Value Description
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------ -------------------
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'n' north
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's' south
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'e' east
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'w' west
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'nw' northwest
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'sw' southwest
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'se' southeast
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'ne' northeast
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'all' all
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</pre>
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* <p>Here's an example showing the creation of a typical Resizable:</p>
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* <pre><code>
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var resizer = new Ext.Resizable('element-id', {
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handles: 'all',
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minWidth: 200,
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minHeight: 100,
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maxWidth: 500,
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maxHeight: 400,
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pinned: true
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});
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resizer.on('resize', myHandler);
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</code></pre>
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* <p>To hide a particular handle, set its display to none in CSS, or through script:<br>
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* resizer.east.setDisplayed(false);</p>
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* @constructor
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* Create a new resizable component
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* @param {Mixed} el The id or element to resize
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* @param {Object} config configuration options
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*/
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Ext.Resizable = Ext.extend(Ext.util.Observable, {
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constructor: function(el, config){
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this.el = Ext.get(el);
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if(config && config.wrap){
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config.resizeChild = this.el;
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this.el = this.el.wrap(typeof config.wrap == 'object' ? config.wrap : {cls:'xresizable-wrap'});
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this.el.id = this.el.dom.id = config.resizeChild.id + '-rzwrap';
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this.el.setStyle('overflow', 'hidden');
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this.el.setPositioning(config.resizeChild.getPositioning());
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config.resizeChild.clearPositioning();
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if(!config.width || !config.height){
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var csize = config.resizeChild.getSize();
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this.el.setSize(csize.width, csize.height);
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}
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if(config.pinned && !config.adjustments){
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config.adjustments = 'auto';
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}
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}
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/**
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* The proxy Element that is resized in place of the real Element during the resize operation.
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* This may be queried using {@link Ext.Element#getBox} to provide the new area to resize to.
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* Read only.
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* @type Ext.Element.
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* @property proxy
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*/
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this.proxy = this.el.createProxy({tag: 'div', cls: 'x-resizable-proxy', id: this.el.id + '-rzproxy'}, Ext.getBody());
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this.proxy.unselectable();
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this.proxy.enableDisplayMode('block');
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Ext.apply(this, config);
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if(this.pinned){
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this.disableTrackOver = true;
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this.el.addClass('x-resizable-pinned');
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}
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// if the element isn't positioned, make it relative
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var position = this.el.getStyle('position');
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if(position != 'absolute' && position != 'fixed'){
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this.el.setStyle('position', 'relative');
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}
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if(!this.handles){ // no handles passed, must be legacy style
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this.handles = 's,e,se';
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if(this.multiDirectional){
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this.handles += ',n,w';
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}
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}
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if(this.handles == 'all'){
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this.handles = 'n s e w ne nw se sw';
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}
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var hs = this.handles.split(/\s*?[,;]\s*?| /);
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var ps = Ext.Resizable.positions;
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for(var i = 0, len = hs.length; i < len; i++){
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if(hs[i] && ps[hs[i]]){
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var pos = ps[hs[i]];
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this[pos] = new Ext.Resizable.Handle(this, pos, this.disableTrackOver, this.transparent, this.handleCls);
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}
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}
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// legacy
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this.corner = this.southeast;
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if(this.handles.indexOf('n') != -1 || this.handles.indexOf('w') != -1){
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this.updateBox = true;
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}
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this.activeHandle = null;
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if(this.resizeChild){
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if(typeof this.resizeChild == 'boolean'){
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this.resizeChild = Ext.get(this.el.dom.firstChild, true);
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}else{
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this.resizeChild = Ext.get(this.resizeChild, true);
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}
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}
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if(this.adjustments == 'auto'){
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var rc = this.resizeChild;
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var hw = this.west, he = this.east, hn = this.north, hs = this.south;
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if(rc && (hw || hn)){
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rc.position('relative');
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rc.setLeft(hw ? hw.el.getWidth() : 0);
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rc.setTop(hn ? hn.el.getHeight() : 0);
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}
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this.adjustments = [
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(he ? -he.el.getWidth() : 0) + (hw ? -hw.el.getWidth() : 0),
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(hn ? -hn.el.getHeight() : 0) + (hs ? -hs.el.getHeight() : 0) -1
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];
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}
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if(this.draggable){
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this.dd = this.dynamic ?
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this.el.initDD(null) : this.el.initDDProxy(null, {dragElId: this.proxy.id});
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this.dd.setHandleElId(this.resizeChild ? this.resizeChild.id : this.el.id);
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if(this.constrainTo){
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this.dd.constrainTo(this.constrainTo);
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}
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}
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this.addEvents(
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/**
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* @event beforeresize
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* Fired before resize is allowed. Set {@link #enabled} to false to cancel resize.
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* @param {Ext.Resizable} this
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* @param {Ext.EventObject} e The mousedown event
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*/
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'beforeresize',
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/**
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* @event resize
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* Fired after a resize.
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* @param {Ext.Resizable} this
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* @param {Number} width The new width
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* @param {Number} height The new height
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* @param {Ext.EventObject} e The mouseup event
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*/
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'resize'
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);
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if(this.width !== null && this.height !== null){
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this.resizeTo(this.width, this.height);
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}else{
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this.updateChildSize();
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}
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if(Ext.isIE){
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this.el.dom.style.zoom = 1;
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}
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Ext.Resizable.superclass.constructor.call(this);
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},
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/**
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* @cfg {Array/String} adjustments String 'auto' or an array [width, height] with values to be <b>added</b> to the
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* resize operation's new size (defaults to <tt>[0, 0]</tt>)
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*/
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adjustments : [0, 0],
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/**
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* @cfg {Boolean} animate True to animate the resize (not compatible with dynamic sizing, defaults to false)
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*/
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animate : false,
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/**
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* @cfg {Mixed} constrainTo Constrain the resize to a particular element
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*/
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/**
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* @cfg {Boolean} disableTrackOver True to disable mouse tracking. This is only applied at config time. (defaults to false)
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*/
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disableTrackOver : false,
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/**
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* @cfg {Boolean} draggable Convenience to initialize drag drop (defaults to false)
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*/
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draggable: false,
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/**
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* @cfg {Number} duration Animation duration if animate = true (defaults to 0.35)
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*/
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duration : 0.35,
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/**
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* @cfg {Boolean} dynamic True to resize the element while dragging instead of using a proxy (defaults to false)
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*/
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dynamic : false,
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/**
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* @cfg {String} easing Animation easing if animate = true (defaults to <tt>'easingOutStrong'</tt>)
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*/
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easing : 'easeOutStrong',
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/**
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* @cfg {Boolean} enabled False to disable resizing (defaults to true)
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*/
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enabled : true,
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/**
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* @property enabled Writable. False if resizing is disabled.
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* @type Boolean
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*/
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/**
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* @cfg {String} handles String consisting of the resize handles to display (defaults to undefined).
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* Specify either <tt>'all'</tt> or any of <tt>'n s e w ne nw se sw'</tt>.
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*/
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handles : false,
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/**
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* @cfg {Boolean} multiDirectional <b>Deprecated</b>. Deprecated style of adding multi-direction resize handles.
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*/
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multiDirectional : false,
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/**
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* @cfg {Number} height The height of the element in pixels (defaults to null)
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*/
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height : null,
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/**
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* @cfg {Number} width The width of the element in pixels (defaults to null)
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*/
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width : null,
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/**
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* @cfg {Number} heightIncrement The increment to snap the height resize in pixels
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* (only applies if <code>{@link #dynamic}==true</code>). Defaults to <tt>0</tt>.
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*/
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heightIncrement : 0,
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/**
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* @cfg {Number} widthIncrement The increment to snap the width resize in pixels
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* (only applies if <code>{@link #dynamic}==true</code>). Defaults to <tt>0</tt>.
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*/
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widthIncrement : 0,
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/**
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* @cfg {Number} minHeight The minimum height for the element (defaults to 5)
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*/
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minHeight : 5,
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/**
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* @cfg {Number} minWidth The minimum width for the element (defaults to 5)
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*/
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minWidth : 5,
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/**
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* @cfg {Number} maxHeight The maximum height for the element (defaults to 10000)
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*/
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maxHeight : 10000,
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/**
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* @cfg {Number} maxWidth The maximum width for the element (defaults to 10000)
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*/
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maxWidth : 10000,
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/**
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* @cfg {Number} minX The minimum x for the element (defaults to 0)
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*/
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minX: 0,
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/**
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* @cfg {Number} minY The minimum x for the element (defaults to 0)
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*/
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minY: 0,
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/**
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* @cfg {Boolean} pinned True to ensure that the resize handles are always visible, false to display them only when the
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* user mouses over the resizable borders. This is only applied at config time. (defaults to false)
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*/
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pinned : false,
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/**
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* @cfg {Boolean} preserveRatio True to preserve the original ratio between height
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* and width during resize (defaults to false)
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*/
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preserveRatio : false,
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/**
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* @cfg {Boolean/String/Element} resizeChild True to resize the first child, or id/element to resize (defaults to false)
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*/
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resizeChild : false,
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/**
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* @cfg {Boolean} transparent True for transparent handles. This is only applied at config time. (defaults to false)
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*/
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transparent: false,
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/**
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* @cfg {Ext.lib.Region} resizeRegion Constrain the resize to a particular region
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*/
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/**
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* @cfg {Boolean} wrap True to wrap an element with a div if needed (required for textareas and images, defaults to false)
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* in favor of the handles config option (defaults to false)
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*/
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/**
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* @cfg {String} handleCls A css class to add to each handle. Defaults to <tt>''</tt>.
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*/
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/**
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* Perform a manual resize and fires the 'resize' event.
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* @param {Number} width
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* @param {Number} height
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*/
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resizeTo : function(width, height){
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this.el.setSize(width, height);
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this.updateChildSize();
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this.fireEvent('resize', this, width, height, null);
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},
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// private
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startSizing : function(e, handle){
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this.fireEvent('beforeresize', this, e);
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if(this.enabled){ // 2nd enabled check in case disabled before beforeresize handler
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if(!this.overlay){
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this.overlay = this.el.createProxy({tag: 'div', cls: 'x-resizable-overlay', html: ' '}, Ext.getBody());
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this.overlay.unselectable();
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this.overlay.enableDisplayMode('block');
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this.overlay.on({
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scope: this,
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mousemove: this.onMouseMove,
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mouseup: this.onMouseUp
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});
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}
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this.overlay.setStyle('cursor', handle.el.getStyle('cursor'));
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this.resizing = true;
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this.startBox = this.el.getBox();
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this.startPoint = e.getXY();
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this.offsets = [(this.startBox.x + this.startBox.width) - this.startPoint[0],
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(this.startBox.y + this.startBox.height) - this.startPoint[1]];
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this.overlay.setSize(Ext.lib.Dom.getViewWidth(true), Ext.lib.Dom.getViewHeight(true));
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this.overlay.show();
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if(this.constrainTo) {
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var ct = Ext.get(this.constrainTo);
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this.resizeRegion = ct.getRegion().adjust(
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ct.getFrameWidth('t'),
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ct.getFrameWidth('l'),
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-ct.getFrameWidth('b'),
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-ct.getFrameWidth('r')
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);
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}
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this.proxy.setStyle('visibility', 'hidden'); // workaround display none
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this.proxy.show();
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this.proxy.setBox(this.startBox);
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if(!this.dynamic){
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this.proxy.setStyle('visibility', 'visible');
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}
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}
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},
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// private
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onMouseDown : function(handle, e){
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if(this.enabled){
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e.stopEvent();
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this.activeHandle = handle;
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this.startSizing(e, handle);
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}
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},
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// private
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onMouseUp : function(e){
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this.activeHandle = null;
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var size = this.resizeElement();
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this.resizing = false;
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this.handleOut();
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this.overlay.hide();
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this.proxy.hide();
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this.fireEvent('resize', this, size.width, size.height, e);
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},
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// private
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updateChildSize : function(){
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if(this.resizeChild){
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var el = this.el;
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var child = this.resizeChild;
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var adj = this.adjustments;
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if(el.dom.offsetWidth){
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var b = el.getSize(true);
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child.setSize(b.width+adj[0], b.height+adj[1]);
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}
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// Second call here for IE
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// The first call enables instant resizing and
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// the second call corrects scroll bars if they
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// exist
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if(Ext.isIE){
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setTimeout(function(){
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if(el.dom.offsetWidth){
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var b = el.getSize(true);
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child.setSize(b.width+adj[0], b.height+adj[1]);
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}
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}, 10);
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}
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}
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},
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// private
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snap : function(value, inc, min){
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if(!inc || !value){
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return value;
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}
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var newValue = value;
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var m = value % inc;
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if(m > 0){
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if(m > (inc/2)){
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newValue = value + (inc-m);
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}else{
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newValue = value - m;
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}
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}
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return Math.max(min, newValue);
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},
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/**
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* <p>Performs resizing of the associated Element. This method is called internally by this
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* class, and should not be called by user code.</p>
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* <p>If a Resizable is being used to resize an Element which encapsulates a more complex UI
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* component such as a Panel, this method may be overridden by specifying an implementation
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* as a config option to provide appropriate behaviour at the end of the resize operation on
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* mouseup, for example resizing the Panel, and relaying the Panel's content.</p>
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* <p>The new area to be resized to is available by examining the state of the {@link #proxy}
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* Element. Example:
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<pre><code>
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new Ext.Panel({
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title: 'Resize me',
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x: 100,
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y: 100,
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renderTo: Ext.getBody(),
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floating: true,
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frame: true,
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width: 400,
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height: 200,
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listeners: {
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render: function(p) {
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new Ext.Resizable(p.getEl(), {
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handles: 'all',
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pinned: true,
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transparent: true,
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resizeElement: function() {
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var box = this.proxy.getBox();
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p.updateBox(box);
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if (p.layout) {
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p.doLayout();
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}
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return box;
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}
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});
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}
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}
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}).show();
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</code></pre>
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*/
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resizeElement : function(){
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var box = this.proxy.getBox();
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if(this.updateBox){
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this.el.setBox(box, false, this.animate, this.duration, null, this.easing);
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}else{
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this.el.setSize(box.width, box.height, this.animate, this.duration, null, this.easing);
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}
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this.updateChildSize();
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if(!this.dynamic){
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this.proxy.hide();
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}
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if(this.draggable && this.constrainTo){
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this.dd.resetConstraints();
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this.dd.constrainTo(this.constrainTo);
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}
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return box;
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},
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// private
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constrain : function(v, diff, m, mx){
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if(v - diff < m){
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diff = v - m;
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}else if(v - diff > mx){
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diff = v - mx;
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}
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return diff;
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},
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// private
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onMouseMove : function(e){
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if(this.enabled && this.activeHandle){
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try{// try catch so if something goes wrong the user doesn't get hung
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if(this.resizeRegion && !this.resizeRegion.contains(e.getPoint())) {
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return;
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}
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//var curXY = this.startPoint;
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var curSize = this.curSize || this.startBox,
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x = this.startBox.x, y = this.startBox.y,
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ox = x,
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oy = y,
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w = curSize.width,
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h = curSize.height,
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ow = w,
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oh = h,
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mw = this.minWidth,
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mh = this.minHeight,
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mxw = this.maxWidth,
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mxh = this.maxHeight,
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wi = this.widthIncrement,
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hi = this.heightIncrement,
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eventXY = e.getXY(),
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diffX = -(this.startPoint[0] - Math.max(this.minX, eventXY[0])),
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diffY = -(this.startPoint[1] - Math.max(this.minY, eventXY[1])),
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pos = this.activeHandle.position,
|
|
tw,
|
|
th;
|
|
|
|
switch(pos){
|
|
case 'east':
|
|
w += diffX;
|
|
w = Math.min(Math.max(mw, w), mxw);
|
|
break;
|
|
case 'south':
|
|
h += diffY;
|
|
h = Math.min(Math.max(mh, h), mxh);
|
|
break;
|
|
case 'southeast':
|
|
w += diffX;
|
|
h += diffY;
|
|
w = Math.min(Math.max(mw, w), mxw);
|
|
h = Math.min(Math.max(mh, h), mxh);
|
|
break;
|
|
case 'north':
|
|
diffY = this.constrain(h, diffY, mh, mxh);
|
|
y += diffY;
|
|
h -= diffY;
|
|
break;
|
|
case 'west':
|
|
diffX = this.constrain(w, diffX, mw, mxw);
|
|
x += diffX;
|
|
w -= diffX;
|
|
break;
|
|
case 'northeast':
|
|
w += diffX;
|
|
w = Math.min(Math.max(mw, w), mxw);
|
|
diffY = this.constrain(h, diffY, mh, mxh);
|
|
y += diffY;
|
|
h -= diffY;
|
|
break;
|
|
case 'northwest':
|
|
diffX = this.constrain(w, diffX, mw, mxw);
|
|
diffY = this.constrain(h, diffY, mh, mxh);
|
|
y += diffY;
|
|
h -= diffY;
|
|
x += diffX;
|
|
w -= diffX;
|
|
break;
|
|
case 'southwest':
|
|
diffX = this.constrain(w, diffX, mw, mxw);
|
|
h += diffY;
|
|
h = Math.min(Math.max(mh, h), mxh);
|
|
x += diffX;
|
|
w -= diffX;
|
|
break;
|
|
}
|
|
|
|
var sw = this.snap(w, wi, mw);
|
|
var sh = this.snap(h, hi, mh);
|
|
if(sw != w || sh != h){
|
|
switch(pos){
|
|
case 'northeast':
|
|
y -= sh - h;
|
|
break;
|
|
case 'north':
|
|
y -= sh - h;
|
|
break;
|
|
case 'southwest':
|
|
x -= sw - w;
|
|
break;
|
|
case 'west':
|
|
x -= sw - w;
|
|
break;
|
|
case 'northwest':
|
|
x -= sw - w;
|
|
y -= sh - h;
|
|
break;
|
|
}
|
|
w = sw;
|
|
h = sh;
|
|
}
|
|
|
|
if(this.preserveRatio){
|
|
switch(pos){
|
|
case 'southeast':
|
|
case 'east':
|
|
h = oh * (w/ow);
|
|
h = Math.min(Math.max(mh, h), mxh);
|
|
w = ow * (h/oh);
|
|
break;
|
|
case 'south':
|
|
w = ow * (h/oh);
|
|
w = Math.min(Math.max(mw, w), mxw);
|
|
h = oh * (w/ow);
|
|
break;
|
|
case 'northeast':
|
|
w = ow * (h/oh);
|
|
w = Math.min(Math.max(mw, w), mxw);
|
|
h = oh * (w/ow);
|
|
break;
|
|
case 'north':
|
|
tw = w;
|
|
w = ow * (h/oh);
|
|
w = Math.min(Math.max(mw, w), mxw);
|
|
h = oh * (w/ow);
|
|
x += (tw - w) / 2;
|
|
break;
|
|
case 'southwest':
|
|
h = oh * (w/ow);
|
|
h = Math.min(Math.max(mh, h), mxh);
|
|
tw = w;
|
|
w = ow * (h/oh);
|
|
x += tw - w;
|
|
break;
|
|
case 'west':
|
|
th = h;
|
|
h = oh * (w/ow);
|
|
h = Math.min(Math.max(mh, h), mxh);
|
|
y += (th - h) / 2;
|
|
tw = w;
|
|
w = ow * (h/oh);
|
|
x += tw - w;
|
|
break;
|
|
case 'northwest':
|
|
tw = w;
|
|
th = h;
|
|
h = oh * (w/ow);
|
|
h = Math.min(Math.max(mh, h), mxh);
|
|
w = ow * (h/oh);
|
|
y += th - h;
|
|
x += tw - w;
|
|
break;
|
|
|
|
}
|
|
}
|
|
this.proxy.setBounds(x, y, w, h);
|
|
if(this.dynamic){
|
|
this.resizeElement();
|
|
}
|
|
}catch(ex){}
|
|
}
|
|
},
|
|
|
|
// private
|
|
handleOver : function(){
|
|
if(this.enabled){
|
|
this.el.addClass('x-resizable-over');
|
|
}
|
|
},
|
|
|
|
// private
|
|
handleOut : function(){
|
|
if(!this.resizing){
|
|
this.el.removeClass('x-resizable-over');
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Returns the element this component is bound to.
|
|
* @return {Ext.Element}
|
|
*/
|
|
getEl : function(){
|
|
return this.el;
|
|
},
|
|
|
|
/**
|
|
* Returns the resizeChild element (or null).
|
|
* @return {Ext.Element}
|
|
*/
|
|
getResizeChild : function(){
|
|
return this.resizeChild;
|
|
},
|
|
|
|
/**
|
|
* Destroys this resizable. If the element was wrapped and
|
|
* removeEl is not true then the element remains.
|
|
* @param {Boolean} removeEl (optional) true to remove the element from the DOM
|
|
*/
|
|
destroy : function(removeEl){
|
|
Ext.destroy(this.dd, this.overlay, this.proxy);
|
|
this.overlay = null;
|
|
this.proxy = null;
|
|
|
|
var ps = Ext.Resizable.positions;
|
|
for(var k in ps){
|
|
if(typeof ps[k] != 'function' && this[ps[k]]){
|
|
this[ps[k]].destroy();
|
|
}
|
|
}
|
|
if(removeEl){
|
|
this.el.update('');
|
|
Ext.destroy(this.el);
|
|
this.el = null;
|
|
}
|
|
this.purgeListeners();
|
|
},
|
|
|
|
syncHandleHeight : function(){
|
|
var h = this.el.getHeight(true);
|
|
if(this.west){
|
|
this.west.el.setHeight(h);
|
|
}
|
|
if(this.east){
|
|
this.east.el.setHeight(h);
|
|
}
|
|
}
|
|
});
|
|
|
|
// private
|
|
// hash to map config positions to true positions
|
|
Ext.Resizable.positions = {
|
|
n: 'north', s: 'south', e: 'east', w: 'west', se: 'southeast', sw: 'southwest', nw: 'northwest', ne: 'northeast'
|
|
};
|
|
|
|
Ext.Resizable.Handle = Ext.extend(Object, {
|
|
constructor : function(rz, pos, disableTrackOver, transparent, cls){
|
|
if(!this.tpl){
|
|
// only initialize the template if resizable is used
|
|
var tpl = Ext.DomHelper.createTemplate(
|
|
{tag: 'div', cls: 'x-resizable-handle x-resizable-handle-{0}'}
|
|
);
|
|
tpl.compile();
|
|
Ext.Resizable.Handle.prototype.tpl = tpl;
|
|
}
|
|
this.position = pos;
|
|
this.rz = rz;
|
|
this.el = this.tpl.append(rz.el.dom, [this.position], true);
|
|
this.el.unselectable();
|
|
if(transparent){
|
|
this.el.setOpacity(0);
|
|
}
|
|
if(!Ext.isEmpty(cls)){
|
|
this.el.addClass(cls);
|
|
}
|
|
this.el.on('mousedown', this.onMouseDown, this);
|
|
if(!disableTrackOver){
|
|
this.el.on({
|
|
scope: this,
|
|
mouseover: this.onMouseOver,
|
|
mouseout: this.onMouseOut
|
|
});
|
|
}
|
|
},
|
|
|
|
// private
|
|
afterResize : function(rz){
|
|
// do nothing
|
|
},
|
|
// private
|
|
onMouseDown : function(e){
|
|
this.rz.onMouseDown(this, e);
|
|
},
|
|
// private
|
|
onMouseOver : function(e){
|
|
this.rz.handleOver(this, e);
|
|
},
|
|
// private
|
|
onMouseOut : function(e){
|
|
this.rz.handleOut(this, e);
|
|
},
|
|
// private
|
|
destroy : function(){
|
|
Ext.destroy(this.el);
|
|
this.el = null;
|
|
}
|
|
});
|