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JAVASCRIPT FILE http://pandoraboxx.ru/js/TaskBar.js


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TaskBar.js
				
/*!
 * Ext JS Library 3.3.1
 * Copyright(c) 2006-2010 Sencha Inc.
 * licensing@sencha.com
 * http://www.sencha.com/license
 */
/**
 * @class Ext.ux.TaskBar
 * @extends Ext.util.Observable
 */
Ext.ux.TaskBar = function(app){
    this.app = app;
    this.init();
}

Ext.extend(Ext.ux.TaskBar, Ext.util.Observable, {
    init : function(){
        this.startMenu = new Ext.ux.StartMenu(Ext.apply({
            iconCls: 'user',
            height: 300,
            shadow: true,
            title: 'Jack Slocum',
            width: 300
        }, this.app.startConfig));

        this.startBtn = new Ext.Button({
            text: 'Старт',
            id: 'ux-startbutton',
            iconCls:'start',
            menu: this.startMenu,
            menuAlign: 'bl-tl',
            renderTo: 'ux-taskbar-start',
            clickEvent: 'mousedown',
            template: new Ext.Template(
                '<table cellspacing="0" class="x-btn"><tbody class="{1}"><tr>',
                '<td class="ux-startbutton-left"><i>&#160;</i></td>',
                '<td class="ux-startbutton-center"><em class="{2} unselectable="on">',
                    '<button class="x-btn-text" type="{0}" style="height:30px;"></button>',
                '</em></td>',
                '<td class="ux-startbutton-right"><i>&#160;</i></td>',
                '</tr></tbody></table>')
        });

        var width = this.startBtn.getEl().getWidth()+10;

        var sbBox = new Ext.BoxComponent({
            el: 'ux-taskbar-start',
            id: 'TaskBarStart',
            minWidth: width,
            region:'west',
            split: true,
            width: width
        });

        this.tbPanel = new Ext.ux.TaskButtonsPanel({
            el: 'ux-taskbuttons-panel',
            id: 'TaskBarButtons',
            region:'center'
        });

        var container = new Ext.ux.TaskBarContainer({
            el: 'ux-taskbar',
            layout: 'border',
            items: [sbBox,this.tbPanel]
        });

        return this;
    },

    addTaskButton : function(win){
        return this.tbPanel.addButton(win, 'ux-taskbuttons-panel');
    },

    removeTaskButton : function(btn){
        this.tbPanel.removeButton(btn);
    },

    setActiveButton : function(btn){
        this.tbPanel.setActiveButton(btn);
    }
});



/**
 * @class Ext.ux.TaskBarContainer
 * @extends Ext.Container
 */
Ext.ux.TaskBarContainer = Ext.extend(Ext.Container, {
    initComponent : function() {
        Ext.ux.TaskBarContainer.superclass.initComponent.call(this);

        this.el = Ext.get(this.el) || Ext.getBody();
        this.el.setHeight = Ext.emptyFn;
        this.el.setWidth = Ext.emptyFn;
        this.el.setSize = Ext.emptyFn;
        this.el.setStyle({
            overflow:'hidden',
            margin:'0',
            border:'0 none'
        });
        this.el.dom.scroll = 'no';
        this.allowDomMove = false;
        this.autoWidth = true;
        this.autoHeight = true;
        Ext.EventManager.onWindowResize(this.fireResize, this);
        this.renderTo = this.el;
    },

    fireResize : function(w, h){
        this.onResize(w, h, w, h);
        this.fireEvent('resize', this, w, h, w, h);
    }
});



/**
 * @class Ext.ux.TaskButtonsPanel
 * @extends Ext.BoxComponent
 */
Ext.ux.TaskButtonsPanel = Ext.extend(Ext.BoxComponent, {
    activeButton: null,
    enableScroll: true,
    scrollIncrement: 0,
    scrollRepeatInterval: 400,
    scrollDuration: .35,
    animScroll: true,
    resizeButtons: true,
    buttonWidth: 168,
    minButtonWidth: 118,
    buttonMargin: 2,
    buttonWidthSet: false,

    initComponent : function() {
        Ext.ux.TaskButtonsPanel.superclass.initComponent.call(this);
        this.on('resize', this.delegateUpdates);
        this.items = [];

        this.stripWrap = Ext.get(this.el).createChild({
            cls: 'ux-taskbuttons-strip-wrap',
            cn: {
                tag:'ul', cls:'ux-taskbuttons-strip'
            }
        });
        this.stripSpacer = Ext.get(this.el).createChild({
            cls:'ux-taskbuttons-strip-spacer'
        });
        this.strip = new Ext.Element(this.stripWrap.dom.firstChild);

        this.edge = this.strip.createChild({
            tag:'li',
            cls:'ux-taskbuttons-edge'
        });
        this.strip.createChild({
            cls:'x-clear'
        });
    },

    addButton : function(win){
        var li = this.strip.createChild({tag:'li'}, this.edge); // insert before the edge
        var btn = new Ext.ux.TaskBar.TaskButton(win, li);

        this.items.push(btn);

        if(!this.buttonWidthSet){
            this.lastButtonWidth = btn.container.getWidth();
        }

        this.setActiveButton(btn);
        return btn;
    },

    removeButton : function(btn){
        var li = document.getElementById(btn.container.id);
        btn.destroy();
        li.parentNode.removeChild(li);

        var s = [];
        for(var i = 0, len = this.items.length; i < len; i++) {
            if(this.items[i] != btn){
                s.push(this.items[i]);
            }
        }
        this.items = s;

        this.delegateUpdates();
    },

    setActiveButton : function(btn){
        this.activeButton = btn;
        this.delegateUpdates();
    },

    delegateUpdates : function(){
        /*if(this.suspendUpdates){
            return;
        }*/
        if(this.resizeButtons && this.rendered){
            this.autoSize();
        }
        if(this.enableScroll && this.rendered){
            this.autoScroll();
        }
    },

    autoSize : function(){
        var count = this.items.length;
        var ow = this.el.dom.offsetWidth;
        var aw = this.el.dom.clientWidth;

        if(!this.resizeButtons || count < 1 || !aw){ // !aw for display:none
            return;
        }

        var each = Math.max(Math.min(Math.floor((aw-4) / count) - this.buttonMargin, this.buttonWidth), this.minButtonWidth); // -4 for float errors in IE
        var btns = this.stripWrap.dom.getElementsByTagName('button');

        this.lastButtonWidth = Ext.get(btns[0].id).findParent('li').offsetWidth;

        for(var i = 0, len = btns.length; i < len; i++) {
            var btn = btns[i];

            var tw = Ext.get(btns[i].id).findParent('li').offsetWidth;
            var iw = btn.offsetWidth;

            btn.style.width = (each - (tw-iw)) + 'px';
        }
    },

    autoScroll : function(){
        var count = this.items.length;
        var ow = this.el.dom.offsetWidth;
        var tw = this.el.dom.clientWidth;

        var wrap = this.stripWrap;
        var cw = wrap.dom.offsetWidth;
        var pos = this.getScrollPos();
        var l = this.edge.getOffsetsTo(this.stripWrap)[0] + pos;

        if(!this.enableScroll || count < 1 || cw < 20){ // 20 to prevent display:none issues
            return;
        }

        wrap.setWidth(tw); // moved to here because of problem in Safari

        if(l <= tw){
            wrap.dom.scrollLeft = 0;
            //wrap.setWidth(tw); moved from here because of problem in Safari
            if(this.scrolling){
                this.scrolling = false;
                this.el.removeClass('x-taskbuttons-scrolling');
                this.scrollLeft.hide();
                this.scrollRight.hide();
            }
        }else{
            if(!this.scrolling){
                this.el.addClass('x-taskbuttons-scrolling');
            }
            tw -= wrap.getMargins('lr');
            wrap.setWidth(tw > 20 ? tw : 20);
            if(!this.scrolling){
                if(!this.scrollLeft){
                    this.createScrollers();
                }else{
                    this.scrollLeft.show();
                    this.scrollRight.show();
                }
            }
            this.scrolling = true;
            if(pos > (l-tw)){ // ensure it stays within bounds
                wrap.dom.scrollLeft = l-tw;
            }else{ // otherwise, make sure the active button is still visible
                this.scrollToButton(this.activeButton, true); // true to animate
            }
            this.updateScrollButtons();
        }
    },

    createScrollers : function(){
        var h = this.el.dom.offsetHeight; //var h = this.stripWrap.dom.offsetHeight;

        // left
        var sl = this.el.insertFirst({
            cls:'ux-taskbuttons-scroller-left'
        });
        sl.setHeight(h);
        sl.addClassOnOver('ux-taskbuttons-scroller-left-over');
        this.leftRepeater = new Ext.util.ClickRepeater(sl, {
            interval : this.scrollRepeatInterval,
            handler: this.onScrollLeft,
            scope: this
        });
        this.scrollLeft = sl;

        // right
        var sr = this.el.insertFirst({
            cls:'ux-taskbuttons-scroller-right'
        });
        sr.setHeight(h);
        sr.addClassOnOver('ux-taskbuttons-scroller-right-over');
        this.rightRepeater = new Ext.util.ClickRepeater(sr, {
            interval : this.scrollRepeatInterval,
            handler: this.onScrollRight,
            scope: this
        });
        this.scrollRight = sr;
    },

    getScrollWidth : function(){
        return this.edge.getOffsetsTo(this.stripWrap)[0] + this.getScrollPos();
    },

    getScrollPos : function(){
        return parseInt(this.stripWrap.dom.scrollLeft, 10) || 0;
    },

    getScrollArea : function(){
        return parseInt(this.stripWrap.dom.clientWidth, 10) || 0;
    },

    getScrollAnim : function(){
        return {
            duration: this.scrollDuration,
            callback: this.updateScrollButtons,
            scope: this
        };
    },

    getScrollIncrement : function(){
        return (this.scrollIncrement || this.lastButtonWidth+2);
    },

    /* getBtnEl : function(item){
        return document.getElementById(item.id);
    }, */

    scrollToButton : function(item, animate){
        item = item.el.dom.parentNode; // li
        if(!item){ return; }
        var el = item; //this.getBtnEl(item);
        var pos = this.getScrollPos(), area = this.getScrollArea();
        var left = Ext.fly(el).getOffsetsTo(this.stripWrap)[0] + pos;
        var right = left + el.offsetWidth;
        if(left < pos){
            this.scrollTo(left, animate);
        }else if(right > (pos + area)){
            this.scrollTo(right - area, animate);
        }
    },

    scrollTo : function(pos, animate){
        this.stripWrap.scrollTo('left', pos, animate ? this.getScrollAnim() : false);
        if(!animate){
            this.updateScrollButtons();
        }
    },

    onScrollRight : function(){
        var sw = this.getScrollWidth()-this.getScrollArea();
        var pos = this.getScrollPos();
        var s = Math.min(sw, pos + this.getScrollIncrement());
        if(s != pos){
            this.scrollTo(s, this.animScroll);
        }
    },

    onScrollLeft : function(){
        var pos = this.getScrollPos();
        var s = Math.max(0, pos - this.getScrollIncrement());
        if(s != pos){
            this.scrollTo(s, this.animScroll);
        }
    },

    updateScrollButtons : function(){
        var pos = this.getScrollPos();
        this.scrollLeft[pos == 0 ? 'addClass' : 'removeClass']('ux-taskbuttons-scroller-left-disabled');
        this.scrollRight[pos >= (this.getScrollWidth()-this.getScrollArea()) ? 'addClass' : 'removeClass']('ux-taskbuttons-scroller-right-disabled');
    }
});



/**
 * @class Ext.ux.TaskBar.TaskButton
 * @extends Ext.Button
 */
Ext.ux.TaskBar.TaskButton = function(win, el){
    this.win = win;
    Ext.ux.TaskBar.TaskButton.superclass.constructor.call(this, {
        iconCls: win.iconCls,
        text: Ext.util.Format.ellipsis(win.title, 12),
        renderTo: el,
        handler : function(){
            if(win.minimized || win.hidden){
                win.show();
            }else if(win == win.manager.getActive()){
                win.minimize();
            }else{
                win.toFront();
            }
        },
        clickEvent:'mousedown',
        template: new Ext.Template(
            '<table cellspacing="0" class="x-btn {3}"><tbody><tr>',
            '<td class="ux-taskbutton-left"><i>&#160;</i></td>',
            '<td class="ux-taskbutton-center"><em class="{5} unselectable="on">',
                '<button class="x-btn-text {2}" type="{1}" style="height:28px;">{0}</button>',
            '</em></td>',
            '<td class="ux-taskbutton-right"><i>&#160;</i></td>',
            "</tr></tbody></table>")
    });
};

Ext.extend(Ext.ux.TaskBar.TaskButton, Ext.Button, {
    onRender : function(){
        Ext.ux.TaskBar.TaskButton.superclass.onRender.apply(this, arguments);

        this.cmenu = new Ext.menu.Menu({
            items: [{
                text: 'Restore',
                handler: function(){
                    if(!this.win.isVisible()){
                        this.win.show();
                    }else{
                        this.win.restore();
                    }
                },
                scope: this
            },{
                text: 'Minimize',
                handler: this.win.minimize,
                scope: this.win
            },{
                text: 'Maximize',
                handler: this.win.maximize,
                scope: this.win
            }, '-', {
                text: 'Close',
                handler: this.closeWin.createDelegate(this, this.win, true),
                scope: this.win
            }]
        });

        this.cmenu.on('beforeshow', function(){
            var items = this.cmenu.items.items;
            var w = this.win;
            items[0].setDisabled(w.maximized !== true && w.hidden !== true);
            items[1].setDisabled(w.minimized === true);
            items[2].setDisabled(w.maximized === true || w.hidden === true);
        }, this);

        this.el.on('contextmenu', function(e){
            e.stopEvent();
            if(!this.cmenu.el){
                this.cmenu.render();
            }
            var xy = e.getXY();
            xy[1] -= this.cmenu.el.getHeight();
            this.cmenu.showAt(xy);
        }, this);
    },

    closeWin : function(cMenu, e, win){
        if(!win.isVisible()){
            win.show();
        }else{
            win.restore();
        }
        win.close();
    }
});


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