/*
+ * Based on:
+ * Ext JS Library 1.1.1
+ * Copyright(c) 2006-2007, Ext JS, LLC.
+ *
+ * Originally Released Under LGPL - original licence link has changed is not relivant.
+ *
+ * Fork - LGPL
+ * <script type="text/javascript">
+ */
+
+/**
+ * @class Roo.BasicLayoutRegion
+ * @extends Roo.util.Observable
+ * This class represents a lightweight region in a layout manager. This region does not move dom nodes
+ * and does not have a titlebar, tabs or any other features. All it does is size and position
+ * panels. To create a BasicLayoutRegion, add lightweight:true or basic:true to your regions config.
+ */
+Roo.BasicLayoutRegion = function(mgr, config, pos, skipConfig){
+ this.mgr = mgr;
+ this.position = pos;
+ this.events = {
+ /**
+ * @scope Roo.BasicLayoutRegion
+ */
+
+ /**
+ * @event beforeremove
+ * Fires before a panel is removed (or closed). To cancel the removal set "e.cancel = true" on the event argument.
+ * @param {Roo.LayoutRegion} this
+ * @param {Roo.ContentPanel} panel The panel
+ * @param {Object} e The cancel event object
+ */
+ "beforeremove" : true,
+ /**
+ * @event invalidated
+ * Fires when the layout for this region is changed.
+ * @param {Roo.LayoutRegion} this
+ */
+ "invalidated" : true,
+ /**
+ * @event visibilitychange
+ * Fires when this region is shown or hidden
+ * @param {Roo.LayoutRegion} this
+ * @param {Boolean} visibility true or false
+ */
+ "visibilitychange" : true,
+ /**
+ * @event paneladded
+ * Fires when a panel is added.
+ * @param {Roo.LayoutRegion} this
+ * @param {Roo.ContentPanel} panel The panel
+ */
+ "paneladded" : true,
+ /**
+ * @event panelremoved
+ * Fires when a panel is removed.
+ * @param {Roo.LayoutRegion} this
+ * @param {Roo.ContentPanel} panel The panel
+ */
+ "panelremoved" : true,
+ /**
+ * @event beforecollapse
+ * Fires when this region before collapse.
+ * @param {Roo.LayoutRegion} this
+ */
+ "beforecollapse" : true,
+ /**
+ * @event collapsed
+ * Fires when this region is collapsed.
+ * @param {Roo.LayoutRegion} this
+ */
+ "collapsed" : true,
+ /**
+ * @event expanded
+ * Fires when this region is expanded.
+ * @param {Roo.LayoutRegion} this
+ */
+ "expanded" : true,
+ /**
+ * @event slideshow
+ * Fires when this region is slid into view.
+ * @param {Roo.LayoutRegion} this
+ */
+ "slideshow" : true,
+ /**
+ * @event slidehide
+ * Fires when this region slides out of view.
+ * @param {Roo.LayoutRegion} this
+ */
+ "slidehide" : true,
+ /**
+ * @event panelactivated
+ * Fires when a panel is activated.
+ * @param {Roo.LayoutRegion} this
+ * @param {Roo.ContentPanel} panel The activated panel
+ */
+ "panelactivated" : true,
+ /**
+ * @event resized
+ * Fires when the user resizes this region.
+ * @param {Roo.LayoutRegion} this
+ * @param {Number} newSize The new size (width for east/west, height for north/south)
+ */
+ "resized" : true
+ };
+ /** A collection of panels in this region. @type Roo.util.MixedCollection */
+ this.panels = new Roo.util.MixedCollection();
+ this.panels.getKey = this.getPanelId.createDelegate(this);
+ this.box = null;
+ this.activePanel = null;
+ // ensure listeners are added...
+
+ if (config.listeners || config.events) {
+ Roo.BasicLayoutRegion.superclass.constructor.call(this, {
+ listeners : config.listeners || {},
+ events : config.events || {}
+ });
+ }
+
+ if(skipConfig !== true){
+ this.applyConfig(config);
+ }
+};
+
+Roo.extend(Roo.BasicLayoutRegion, Roo.util.Observable, {
+ getPanelId : function(p){
+ return p.getId();
+ },
+
+ applyConfig : function(config){
+ this.margins = config.margins || this.margins || {top: 0, left: 0, right:0, bottom: 0};
+ this.config = config;
+
+ },
+
+ /**
+ * Resizes the region to the specified size. For vertical regions (west, east) this adjusts
+ * the width, for horizontal (north, south) the height.
+ * @param {Number} newSize The new width or height
+ */
+ resizeTo : function(newSize){
+ var el = this.el ? this.el :
+ (this.activePanel ? this.activePanel.getEl() : null);
+ if(el){
+ switch(this.position){
+ case "east":
+ case "west":
+ el.setWidth(newSize);
+ this.fireEvent("resized", this, newSize);
+ break;
+ case "north":
+ case "south":
+ el.setHeight(newSize);
+ this.fireEvent("resized", this, newSize);
+ break;
+ }
+ }
+ },
+
+ getBox : function(){
+ return this.activePanel ? this.activePanel.getEl().getBox(false, true) : null;
+ },
+
+ getMargins : function(){
+ return this.margins;
+ },
+
+ updateBox : function(box){
+ this.box = box;
+ var el = this.activePanel.getEl();
+ el.dom.style.left = box.x + "px";
+ el.dom.style.top = box.y + "px";
+ this.activePanel.setSize(box.width, box.height);
+ },
+
+ /**
+ * Returns the container element for this region.
+ * @return {Roo.Element}
+ */
+ getEl : function(){
+ return this.activePanel;
+ },
+
+ /**
+ * Returns true if this region is currently visible.
+ * @return {Boolean}
+ */
+ isVisible : function(){
+ return this.activePanel ? true : false;
+ },
+
+ setActivePanel : function(panel){
+ panel = this.getPanel(panel);
+ if(this.activePanel && this.activePanel != panel){
+ this.activePanel.setActiveState(false);
+ this.activePanel.getEl().setLeftTop(-10000,-10000);
+ }
+ this.activePanel = panel;
+ panel.setActiveState(true);
+ if(this.box){
+ panel.setSize(this.box.width, this.box.height);
+ }
+ this.fireEvent("panelactivated", this, panel);
+ this.fireEvent("invalidated");
+ },
+
+ /**
+ * Show the specified panel.
+ * @param {Number/String/ContentPanel} panelId The panels index, id or the panel itself
+ * @return {Roo.ContentPanel} The shown panel or null
+ */
+ showPanel : function(panel){
+ if(panel = this.getPanel(panel)){
+ this.setActivePanel(panel);
+ }
+ return panel;
+ },
+
+ /**
+ * Get the active panel for this region.
+ * @return {Roo.ContentPanel} The active panel or null
+ */
+ getActivePanel : function(){
+ return this.activePanel;
+ },
+
+ /**
+ * Add the passed ContentPanel(s)
+ * @param {ContentPanel...} panel The ContentPanel(s) to add (you can pass more than one)
+ * @return {Roo.ContentPanel} The panel added (if only one was added)
+ */
+ add : function(panel){
+ if(arguments.length > 1){
+ for(var i = 0, len = arguments.length; i < len; i++) {
+ this.add(arguments[i]);
+ }
+ return null;
+ }
+ if(this.hasPanel(panel)){
+ this.showPanel(panel);
+ return panel;
+ }
+ var el = panel.getEl();
+ if(el.dom.parentNode != this.mgr.el.dom){
+ this.mgr.el.dom.appendChild(el.dom);
+ }
+ if(panel.setRegion){
+ panel.setRegion(this);
+ }
+ this.panels.add(panel);
+ el.setStyle("position", "absolute");
+ if(!panel.background){
+ this.setActivePanel(panel);
+ if(this.config.initialSize && this.panels.getCount()==1){
+ this.resizeTo(this.config.initialSize);
+ }
+ }
+ this.fireEvent("paneladded", this, panel);
+ return panel;
+ },
+
+ /**
+ * Returns true if the panel is in this region.
+ * @param {Number/String/ContentPanel} panel The panels index, id or the panel itself
+ * @return {Boolean}
+ */
+ hasPanel : function(panel){
+ if(typeof panel == "object"){ // must be panel obj
+ panel = panel.getId();
+ }
+ return this.getPanel(panel) ? true : false;
+ },
+
+ /**
+ * Removes the specified panel. If preservePanel is not true (either here or in the config), the panel is destroyed.
+ * @param {Number/String/ContentPanel} panel The panels index, id or the panel itself
+ * @param {Boolean} preservePanel Overrides the config preservePanel option
+ * @return {Roo.ContentPanel} The panel that was removed
+ */
+ remove : function(panel, preservePanel){
+ panel = this.getPanel(panel);
+ if(!panel){
+ return null;
+ }
+ var e = {};
+ this.fireEvent("beforeremove", this, panel, e);
+ if(e.cancel === true){
+ return null;
+ }
+ var panelId = panel.getId();
+ this.panels.removeKey(panelId);
+ return panel;
+ },
+
+ /**
+ * Returns the panel specified or null if it's not in this region.
+ * @param {Number/String/ContentPanel} panel The panels index, id or the panel itself
+ * @return {Roo.ContentPanel}
+ */
+ getPanel : function(id){
+ if(typeof id == "object"){ // must be panel obj
+ return id;
+ }
+ return this.panels.get(id);
+ },
+
+ /**
+ * Returns this regions position (north/south/east/west/center).
+ * @return {String}
+ */
+ getPosition: function(){
+ return this.position;
+ }
+});
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