taskbar.js

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/*
 * qWikiOffice Desktop 0.7.1
 * Copyright(c) 2007-2008, Integrated Technologies, Inc.
 * [e-mail]
 * 
 * http://www.qwikioffice.com/license
 */

Ext.namespace("Ext.ux");

/**
 * @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: 'Todd Murdock', //get_cookie('memberName'),
			width: 300
		}, this.app.startConfig));
		
		this.startButton = new Ext.Button({
            text: 'Start',
            id: 'ux-startbutton',
            iconCls: 'start',
            menu: this.startMenu,
            menuAlign: 'bl-tl',
            renderTo: 'ux-taskbar-start'
        });
        
        var startWidth = Ext.get('ux-startbutton').getWidth() + 10;
        
        var sbBox = new Ext.BoxComponent({
			el: 'ux-taskbar-start',
	        id: 'TaskBarStart',
	        minWidth: startWidth,
			region:'west',
			split: false,
			width: startWidth
		});
		
		this.quickStartPanel = new Ext.ux.QuickStartPanel({
			el: 'ux-quickstart-panel',
	        id: 'TaskBarQuickStart',
	        minWidth: 60,
			region:'west',
			split: true,
			width: 94
		});
		
		this.taskButtonPanel = new Ext.ux.TaskButtonsPanel({
			el: 'ux-taskbuttons-panel',
			id: 'TaskBarButtons',
			region:'center'
		});
		
		var panelWrap = new Ext.Container({
			el: 'ux-taskbar-panel-wrap',
			items: [this.quickStartPanel,this.taskButtonPanel],
			layout: 'border',
			region: 'center'
		});
				
        var container = new Ext.ux.TaskBarContainer({
			el: 'ux-taskbar',
			layout: 'border',
			items: [sbBox,panelWrap]
		});
		this.el = container.el;
		
		return this;
    },
    
	setActiveButton : function(btn){
		this.taskButtonPanel.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.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'
        });
	},
	
	add : 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;
	},
	
	remove : 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();