window.js

一个struts和extjs得源码

         * If this Window is configured {@link #draggable}, this property will contain
         * an instance of {@link Ext.dd.DD} which handles dragging the Window's DOM Element.
         * @type Ext.dd.DD
         * @property dd
         */
        this.dd = new Ext.Window.DD(this);
    },

   // private
    onEsc : function(){
        this[this.closeAction]();
    },

    // private
    beforeDestroy : function(){
        this.hide();
        if(this.doAnchor){
            Ext.EventManager.removeResizeListener(this.doAnchor, this);
            Ext.EventManager.un(window, 'scroll', this.doAnchor, this);
        }
        Ext.destroy(
            this.focusEl,
            this.resizer,
            this.dd,
            this.proxy,
            this.mask
        );
        Ext.Window.superclass.beforeDestroy.call(this);
    },

    // private
    onDestroy : function(){
        if(this.manager){
            this.manager.unregister(this);
        }
        Ext.Window.superclass.onDestroy.call(this);
    },

    // private
    initTools : function(){
        if(this.minimizable){
            this.addTool({
                id: 'minimize',
                handler: this.minimize.createDelegate(this, [])
            });
        }
        if(this.maximizable){
            this.addTool({
                id: 'maximize',
                handler: this.maximize.createDelegate(this, [])
            });
            this.addTool({
                id: 'restore',
                handler: this.restore.createDelegate(this, []),
                hidden:true
            });
            this.header.on('dblclick', this.toggleMaximize, this);
        }
        if(this.closable){
            this.addTool({
                id: 'close',
                handler: this[this.closeAction].createDelegate(this, [])
            });
        }
    },

    // private
    resizerAction : function(){
        var box = this.proxy.getBox();
        this.proxy.hide();
        this.window.handleResize(box);
        return box;
    },

    // private
    beforeResize : function(){
        this.resizer.minHeight = Math.max(this.minHeight, this.getFrameHeight() + 40); // 40 is a magic minimum content size?
        this.resizer.minWidth = Math.max(this.minWidth, this.getFrameWidth() + 40);
        this.resizeBox = this.el.getBox();
    },

    // private
    updateHandles : function(){
        if(Ext.isIE && this.resizer){
            this.resizer.syncHandleHeight();
            this.el.repaint();
        }
    },

    // private
    handleResize : function(box){
        var rz = this.resizeBox;
        if(rz.x != box.x || rz.y != box.y){
            this.updateBox(box);
        }else{
            this.setSize(box);
        }
        this.focus();
        this.updateHandles();
        this.saveState();
        if(this.layout){
            this.doLayout();
        }
        this.fireEvent("resize", this, box.width, box.height);
    },

    /**
     * Focuses the window.  If a defaultButton is set, it will receive focus, otherwise the
     * window itself will receive focus.
     */
    focus : function(){
        var f = this.focusEl, db = this.defaultButton, t = typeof db;
        if(t != 'undefined'){
            if(t == 'number'){
                f = this.buttons[db];
            }else if(t == 'string'){
                f = Ext.getCmp(db);
            }else{
                f = db;
            }
        }
        f.focus.defer(10, f);
    },

    /**
     * Sets the target element from which the window should animate while opening.
     * @param {String/Element} el The target element or id
     */
    setAnimateTarget : function(el){
        el = Ext.get(el);
        this.animateTarget = el;
    },

    // private
    beforeShow : function(){
        delete this.el.lastXY;
        delete this.el.lastLT;
        if(this.x === undefined || this.y === undefined){
            var xy = this.el.getAlignToXY(this.container, 'c-c');
            var pos = this.el.translatePoints(xy[0], xy[1]);
            this.x = this.x === undefined? pos.left : this.x;
            this.y = this.y === undefined? pos.top : this.y;
        }
        this.el.setLeftTop(this.x, this.y);

        if(this.expandOnShow){
            this.expand(false);
        }

        if(this.modal){
            Ext.getBody().addClass("x-body-masked");
            this.mask.setSize(Ext.lib.Dom.getViewWidth(true), Ext.lib.Dom.getViewHeight(true));
            this.mask.show();
        }
    },

    /**
     * Shows the window, rendering it first if necessary, or activates it and brings it to front if hidden.
     * @param {String/Element} animateTarget (optional) The target element or id from which the window should
     * animate while opening (defaults to undefined with no animation)
     * @param {Function} callback (optional) A callback function to call after the window is displayed
     * @param {Object} scope (optional) The scope in which to execute the callback
     */
    show : function(animateTarget, cb, scope){
        if(!this.rendered){
            this.render(Ext.getBody());
        }
        if(this.hidden === false){
            this.toFront();
            return;
        }
        if(this.fireEvent("beforeshow", this) === false){
            return;
        }
        if(cb){
            this.on('show', cb, scope, {single:true});
        }
        this.hidden = false;
        if(animateTarget !== undefined){
            this.setAnimateTarget(animateTarget);
        }
        this.beforeShow();
        if(this.animateTarget){
            this.animShow();
        }else{
            this.afterShow();
        }
    },

    // private
    afterShow : function(){
        this.proxy.hide();
        this.el.setStyle('display', 'block');
        this.el.show();
        if(this.maximized){
            this.fitContainer();
        }
        if(Ext.isMac && Ext.isGecko){ // work around stupid FF 2.0/Mac scroll bar bug
        	this.cascade(this.setAutoScroll);
        }

        if(this.monitorResize || this.modal || this.constrain || this.constrainHeader){
            Ext.EventManager.onWindowResize(this.onWindowResize, this);
        }
        this.doConstrain();
        if(this.layout){
            this.doLayout();
        }
        if(this.keyMap){
            this.keyMap.enable();
        }
        this.toFront();
        this.updateHandles();
        this.fireEvent("show", this);
    },

    // private
    animShow : function(){
        this.proxy.show();
        this.proxy.setBox(this.animateTarget.getBox());
        this.proxy.setOpacity(0);
        var b = this.getBox(false);
        b.callback = this.afterShow;
        b.scope = this;
        b.duration = .25;
        b.easing = 'easeNone';
        b.opacity = .5;
        b.block = true;
        this.el.setStyle('display', 'none');
        this.proxy.shift(b);
    },

    /**
     * Hides the window, setting it to invisible and applying negative offsets.
     * @param {String/Element} animateTarget (optional) The target element or id to which the window should
     * animate while hiding (defaults to null with no animation)
     * @param {Function} callback (optional) A callback function to call after the window is hidden
     * @param {Object} scope (optional) The scope in which to execute the callback
     */
    hide : function(animateTarget, cb, scope){
        if(this.activeGhost){ // drag active?
            this.hide.defer(100, this, [animateTarget, cb, scope]);
            return;
        }
        if(this.hidden || this.fireEvent("beforehide", this) === false){
            return;
        }
        if(cb){
            this.on('hide', cb, scope, {single:true});
        }
        this.hidden = true;
        if(animateTarget !== undefined){
            this.setAnimateTarget(animateTarget);
        }
        if(this.animateTarget){
            this.animHide();
        }else{
            this.el.hide();
            this.afterHide();
        }
    },

    // private
    afterHide : function(){
        this.proxy.hide();
        if(this.monitorResize || this.modal || this.constrain || this.constrainHeader){
            Ext.EventManager.removeResizeListener(this.onWindowResize, this);
        }
        if(this.modal){
            this.mask.hide();
            Ext.getBody().removeClass("x-body-masked");
        }
        if(this.keyMap){
            this.keyMap.disable();
        }
        this.fireEvent("hide", this);
    },

    // private
    animHide : function(){
        this.proxy.setOpacity(.5);
        this.proxy.show();
        var tb = this.getBox(false);
        this.proxy.setBox(tb);
        this.el.hide();
        var b = this.animateTarget.getBox();
        b.callback = this.afterHide;
        b.scope = this;
        b.duration = .25;
        b.easing = 'easeNone';
        b.block = true;
        b.opacity = 0;
        this.proxy.shift(b);
    },

    // private
    onWindowResize : function(){
        if(this.maximized){
            this.fitContainer();
        }
        if(this.modal){
            this.mask.setSize('100%', '100%');