X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/ee06f37b0f6f6d94cd05a6ffae556660f7c4a2bc..c930e9176a5a85509c5b0230e2bff5c22a591432:/docs/source/PanelDD.html
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+
+
+ The source code
+
+
+
+
+ /**
+ * @class Ext.dd.PanelProxy
+ * A custom drag proxy implementation specific to {@link Ext.Panel}s. This class is primarily used internally
+ * for the Panel's drag drop implementation, and should never need to be created directly.
+ * @constructor
+ * @param panel The {@link Ext.Panel} to proxy for
+ * @param config Configuration options
+ */
+Ext.dd.PanelProxy = function(panel, config){
+ this.panel = panel;
+ this.id = this.panel.id +'-ddproxy';
+ Ext.apply(this, config);
+};
+
+Ext.dd.PanelProxy.prototype = {
+ /**
+ * @cfg {Boolean} insertProxy True to insert a placeholder proxy element while dragging the panel,
+ * false to drag with no proxy (defaults to true).
+ */
+ insertProxy : true,
+
+ // private overrides
+ setStatus : Ext.emptyFn,
+ reset : Ext.emptyFn,
+ update : Ext.emptyFn,
+ stop : Ext.emptyFn,
+ sync: Ext.emptyFn,
+
+ /**
+ * Gets the proxy's element
+ * @return {Element} The proxy's element
+ */
+ getEl : function(){
+ return this.ghost;
+ },
+
+ /**
+ * Gets the proxy's ghost element
+ * @return {Element} The proxy's ghost element
+ */
+ getGhost : function(){
+ return this.ghost;
+ },
+
+ /**
+ * Gets the proxy's element
+ * @return {Element} The proxy's element
+ */
+ getProxy : function(){
+ return this.proxy;
+ },
+
+ /**
+ * Hides the proxy
+ */
+ hide : function(){
+ if(this.ghost){
+ if(this.proxy){
+ this.proxy.remove();
+ delete this.proxy;
+ }
+ this.panel.el.dom.style.display = '';
+ this.ghost.remove();
+ delete this.ghost;
+ }
+ },
+
+ /**
+ * Shows the proxy
+ */
+ show : function(){
+ if(!this.ghost){
+ this.ghost = this.panel.createGhost(undefined, undefined, Ext.getBody());
+ this.ghost.setXY(this.panel.el.getXY())
+ if(this.insertProxy){
+ this.proxy = this.panel.el.insertSibling({cls:'x-panel-dd-spacer'});
+ this.proxy.setSize(this.panel.getSize());
+ }
+ this.panel.el.dom.style.display = 'none';
+ }
+ },
+
+ // private
+ repair : function(xy, callback, scope){
+ this.hide();
+ if(typeof callback == "function"){
+ callback.call(scope || this);
+ }
+ },
+
+ /**
+ * Moves the proxy to a different position in the DOM. This is typically called while dragging the Panel
+ * to keep the proxy sync'd to the Panel's location.
+ * @param {HTMLElement} parentNode The proxy's parent DOM node
+ * @param {HTMLElement} before (optional) The sibling node before which the proxy should be inserted (defaults
+ * to the parent's last child if not specified)
+ */
+ moveProxy : function(parentNode, before){
+ if(this.proxy){
+ parentNode.insertBefore(this.proxy.dom, before);
+ }
+ }
+};
+
+// private - DD implementation for Panels
+Ext.Panel.DD = function(panel, cfg){
+ this.panel = panel;
+ this.dragData = {panel: panel};
+ this.proxy = new Ext.dd.PanelProxy(panel, cfg);
+ Ext.Panel.DD.superclass.constructor.call(this, panel.el, cfg);
+ var h = panel.header;
+ if(h){
+ this.setHandleElId(h.id);
+ }
+ (h ? h : this.panel.body).setStyle('cursor', 'move');
+ this.scroll = false;
+};
+
+Ext.extend(Ext.Panel.DD, Ext.dd.DragSource, {
+ showFrame: Ext.emptyFn,
+ startDrag: Ext.emptyFn,
+ b4StartDrag: function(x, y) {
+ this.proxy.show();
+ },
+ b4MouseDown: function(e) {
+ var x = e.getPageX();
+ var y = e.getPageY();
+ this.autoOffset(x, y);
+ },
+ onInitDrag : function(x, y){
+ this.onStartDrag(x, y);
+ return true;
+ },
+ createFrame : Ext.emptyFn,
+ getDragEl : function(e){
+ return this.proxy.ghost.dom;
+ },
+ endDrag : function(e){
+ this.proxy.hide();
+ this.panel.saveState();
+ },
+
+ autoOffset : function(x, y) {
+ x -= this.startPageX;
+ y -= this.startPageY;
+ this.setDelta(x, y);
+ }
+});
+
+
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