panel.js

一个struts和extjs得源码

        return this;
    },

    // private
    onCollapse : function(doAnim, animArg){
        if(doAnim){
            this[this.collapseEl].slideOut(this.slideAnchor,
                    Ext.apply(this.createEffect(animArg||true, this.afterCollapse, this),
                        this.collapseDefaults));
        }else{
            this[this.collapseEl].hide();
            this.afterCollapse();
        }
    },

    // private
    afterCollapse : function(){
        this.collapsed = true;
        this.el.addClass(this.collapsedCls);
        this.afterEffect();
        this.fireEvent('collapse', this);
    },

    /**
     * Expands the panel body so that it becomes visible.  Fires the {@link #beforeexpand} event which will
     * cancel the expand action if it returns false.
     * @param {Boolean} animate True to animate the transition, else false (defaults to the value of the
     * {@link #animCollapse} panel config)
     * @return {Ext.Panel} this
     */
    expand : function(animate){
        if(!this.collapsed || this.el.hasFxBlock() || this.fireEvent('beforeexpand', this, animate) === false){
            return;
        }
        var doAnim = animate === true || (animate !== false && this.animCollapse);
        this.el.removeClass(this.collapsedCls);
        this.beforeEffect();
        this.onExpand(doAnim, animate);
        return this;
    },

    // private
    onExpand : function(doAnim, animArg){
        if(doAnim){
            this[this.collapseEl].slideIn(this.slideAnchor,
                    Ext.apply(this.createEffect(animArg||true, this.afterExpand, this),
                        this.expandDefaults));
        }else{
            this[this.collapseEl].show();
            this.afterExpand();
        }
    },

    // private
    afterExpand : function(){
        this.collapsed = false;
        this.afterEffect();
        this.fireEvent('expand', this);
    },

    /**
     * Shortcut for performing an {@link #expand} or {@link #collapse} based on the current state of the panel.
     * @param {Boolean} animate True to animate the transition, else false (defaults to the value of the
     * {@link #animCollapse} panel config)
     * @return {Ext.Panel} this
     */
    toggleCollapse : function(animate){
        this[this.collapsed ? 'expand' : 'collapse'](animate);
        return this;
    },

    // private
    onDisable : function(){
        if(this.rendered && this.maskDisabled){
            this.el.mask();
        }
        Ext.Panel.superclass.onDisable.call(this);
    },

    // private
    onEnable : function(){
        if(this.rendered && this.maskDisabled){
            this.el.unmask();
        }
        Ext.Panel.superclass.onEnable.call(this);
    },

    // private
    onResize : function(w, h){
        if(w !== undefined || h !== undefined){
            if(!this.collapsed){
                if(typeof w == 'number'){
                    this.body.setWidth(
                            this.adjustBodyWidth(w - this.getFrameWidth()));
                }else if(w == 'auto'){
                    this.body.setWidth(w);
                }

                if(typeof h == 'number'){
                    this.body.setHeight(
                            this.adjustBodyHeight(h - this.getFrameHeight()));
                }else if(h == 'auto'){
                    this.body.setHeight(h);
                }
                
                if(this.disabled && this.el._mask){
                    this.el._mask.setSize(this.el.dom.clientWidth, this.el.getHeight());
                }
            }else{
                this.queuedBodySize = {width: w, height: h};
                if(!this.queuedExpand && this.allowQueuedExpand !== false){
                    this.queuedExpand = true;
                    this.on('expand', function(){
                        delete this.queuedExpand;
                        this.onResize(this.queuedBodySize.width, this.queuedBodySize.height);
                        this.doLayout();
                    }, this, {single:true});
                }
            }
            this.fireEvent('bodyresize', this, w, h);
        }
        this.syncShadow();
    },

    // private
    adjustBodyHeight : function(h){
        return h;
    },

    // private
    adjustBodyWidth : function(w){
        return w;
    },

    // private
    onPosition : function(){
        this.syncShadow();
    },

    /**
     * Returns the width in pixels of the framing elements of this panel (not including the body width).  To
     * retrieve the body width see {@link #getInnerWidth}.
     * @return {Number} The frame width
     */
    getFrameWidth : function(){
        var w = this.el.getFrameWidth('lr');

        if(this.frame){
            var l = this.bwrap.dom.firstChild;
            w += (Ext.fly(l).getFrameWidth('l') + Ext.fly(l.firstChild).getFrameWidth('r'));
            var mc = this.bwrap.dom.firstChild.firstChild.firstChild;
            w += Ext.fly(mc).getFrameWidth('lr');
        }
        return w;
    },

    /**
     * Returns the height in pixels of the framing elements of this panel (including any top and bottom bars and
     * header and footer elements, but not including the body height).  To retrieve the body height see {@link #getInnerHeight}.
     * @return {Number} The frame height
     */
    getFrameHeight : function(){
        var h  = this.el.getFrameWidth('tb');
        h += (this.tbar ? this.tbar.getHeight() : 0) +
             (this.bbar ? this.bbar.getHeight() : 0);

        if(this.frame){
            var hd = this.el.dom.firstChild;
            var ft = this.bwrap.dom.lastChild;
            h += (hd.offsetHeight + ft.offsetHeight);
            var mc = this.bwrap.dom.firstChild.firstChild.firstChild;
            h += Ext.fly(mc).getFrameWidth('tb');
        }else{
            h += (this.header ? this.header.getHeight() : 0) +
                (this.footer ? this.footer.getHeight() : 0);
        }
        return h;
    },

    /**
     * Returns the width in pixels of the body element (not including the width of any framing elements).
     * For the frame width see {@link #getFrameWidth}.
     * @return {Number} The body width
     */
    getInnerWidth : function(){
        return this.getSize().width - this.getFrameWidth();
    },

    /**
     * Returns the height in pixels of the body element (not including the height of any framing elements).
     * For the frame height see {@link #getFrameHeight}.
     * @return {Number} The body height
     */
    getInnerHeight : function(){
        return this.getSize().height - this.getFrameHeight();
    },

    // private
    syncShadow : function(){
        if(this.floating){
            this.el.sync(true);
        }
    },

    // private
    getLayoutTarget : function(){
        return this.body;
    },

    /**
     * <p>Sets the title text for the panel and optionally the icon class.</p>
     * <p>In order to be able to set the title, a header element must have been created
     * for the Panel. This is triggered either by configuring the Panel with a non-blank title,
     * or configuring it with <tt><b>{@link #header}: true</b></tt>.</p>
     * @param {String} title The title text to set
     * @param {String} iconCls (optional) iconCls A user-defined CSS class that provides the icon image for this panel
     */
    setTitle : function(title, iconCls){
        this.title = title;
        if(this.header && this.headerAsText){
            this.header.child('span').update(title);
        }
        if(iconCls){
            this.setIconClass(iconCls);
        }
        this.fireEvent('titlechange', this, title);
        return this;
    },

    /**
     * Get the {@link Ext.Updater} for this panel. Enables you to perform Ajax updates of this panel's body.
     * @return {Ext.Updater} The Updater
     */
    getUpdater : function(){
        return this.body.getUpdater();
    },

     /**
     * Loads this content panel immediately with content returned from an XHR call.
     * @param {Object/String/Function} config A config object containing any of the following options:
<pre><code>
panel.load({
    url: "your-url.php",
    params: {param1: "foo", param2: "bar"}, // or a URL encoded string
    callback: yourFunction,
    scope: yourObject, // optional scope for the callback
    discardUrl: false,
    nocache: false,
    text: "Loading...",
    timeout: 30,
    scripts: false
});
</code></pre>
     * The only required property is url. The optional properties nocache, text and scripts
     * are shorthand for disableCaching, indicatorText and loadScripts and are used to set their
     * associated property on this panel Updater instance.
     * @return {Ext.Panel} this
     */
    load : function(){
        var um = this.body.getUpdater();
        um.update.apply(um, arguments);
        return this;
    },

    // private
    beforeDestroy : function(){
        if(this.header){
            this.header.removeAllListeners();
            if(this.headerAsText){
                Ext.Element.uncache(this.header.child('span'));
            }
        }
        Ext.Element.uncache(
            this.header,
            this.tbar,
            this.bbar,
            this.footer,
            this.body,
            this.bwrap
        );
        if(this.tools){
            for(var k in this.tools){
                Ext.destroy(this.tools[k]);
            }
        }
        if(this.buttons){
            for(var b in this.buttons){
                Ext.destroy(this.buttons[b]);
            }
        }
        Ext.destroy(
            this.topToolbar,
            this.bottomToolbar
        );
        Ext.Panel.superclass.beforeDestroy.call(this);
    },

    // private
    createClasses : function(){
        this.headerCls = this.baseCls + '-header';
        this.headerTextCls = this.baseCls + '-header-text';
        this.bwrapCls = this.baseCls + '-bwrap';
        this.tbarCls = this.baseCls + '-tbar';
        this.bodyCls = this.baseCls + '-body';
        this.bbarCls = this.baseCls + '-bbar';
        this.footerCls = this.baseCls + '-footer';
    },

    // private
    createGhost : function(cls, useShim, appendTo){
        var el = document.createElement('div');
        el.className = 'x-panel-ghost ' + (cls ? cls : '');
        if(this.header){
            el.appendChild(this.el.dom.firstChild.cloneNode(true));
        }
        Ext.fly(el.appendChild(document.createElement('ul'))).setHeight(this.bwrap.getHeight());
        el.style.width = this.el.dom.offsetWidth + 'px';;
        if(!appendTo){
            this.container.dom.appendChild(el);
        }else{
            Ext.getDom(appendTo).appendChild(el);
        }
        if(useShim !== false && this.el.useShim !== false){
            var layer = new Ext.Layer({shadow:false, useDisplay:true, constrain:false}, el);
            layer.show();
            return layer;
        }else{
            return new Ext.Element(el);
        }
    },

    // private
    doAutoLoad : function(){
        this.body.load(
            typeof this.autoLoad == 'object' ?
                this.autoLoad : {url: this.autoLoad});
    },
    
    /**
     * Retrieve a tool by id.
     * @param {String} id
     * @return {Object} tool
     */
    getTool: function(id) {
        return this.tools[id];
    }

/**
 * @cfg {String} autoEl @hide
 */
});
Ext.reg('panel', Ext.Panel);