examples/desktop/js/TaskBar.js

   1 /*!
   2  * Ext JS Library 3.2.1
   3  * Copyright(c) 2006-2010 Ext JS, Inc.
   4  * licensing@extjs.com
   5  * http://www.extjs.com/license
   6  */
   7 /**
   8  * @class Ext.ux.TaskBar
   9  * @extends Ext.util.Observable
  10  */
  11 Ext.ux.TaskBar = function(app){
  12     this.app = app;
  13     this.init();
  14 }
  15
  16 Ext.extend(Ext.ux.TaskBar, Ext.util.Observable, {
  17     init : function(){
  18         this.startMenu = new Ext.ux.StartMenu(Ext.apply({
  19             iconCls: 'user',
  20             height: 300,
  21             shadow: true,
  22             title: 'Jack Slocum',
  23             width: 300
  24         }, this.app.startConfig));
  25
  26         this.startBtn = new Ext.Button({
  27             text: 'Start',
  28             id: 'ux-startbutton',
  29             iconCls:'start',
  30             menu: this.startMenu,
  31             menuAlign: 'bl-tl',
  32             renderTo: 'ux-taskbar-start',
  33             clickEvent: 'mousedown',
  34             template: new Ext.Template(
  35                 '<table cellspacing="0" class="x-btn"><tbody class="{1}"><tr>',
  36                 '<td class="ux-startbutton-left"><i>&#160;</i></td>',
  37                 '<td class="ux-startbutton-center"><em class="{2} unselectable="on">',
  38                     '<button class="x-btn-text" type="{0}" style="height:30px;"></button>',
  39                 '</em></td>',
  40                 '<td class="ux-startbutton-right"><i>&#160;</i></td>',
  41                 '</tr></tbody></table>')
  42         });
  43
  44         var width = this.startBtn.getEl().getWidth()+10;
  45
  46         var sbBox = new Ext.BoxComponent({
  47             el: 'ux-taskbar-start',
  48             id: 'TaskBarStart',
  49             minWidth: width,
  50             region:'west',
  51             split: true,
  52             width: width
  53         });
  54
  55         this.tbPanel = new Ext.ux.TaskButtonsPanel({
  56             el: 'ux-taskbuttons-panel',
  57             id: 'TaskBarButtons',
  58             region:'center'
  59         });
  60
  61         var container = new Ext.ux.TaskBarContainer({
  62             el: 'ux-taskbar',
  63             layout: 'border',
  64             items: [sbBox,this.tbPanel]
  65         });
  66
  67         return this;
  68     },
  69
  70     addTaskButton : function(win){
  71         return this.tbPanel.addButton(win, 'ux-taskbuttons-panel');
  72     },
  73
  74     removeTaskButton : function(btn){
  75         this.tbPanel.removeButton(btn);
  76     },
  77
  78     setActiveButton : function(btn){
  79         this.tbPanel.setActiveButton(btn);
  80     }
  81 });
  82
  83
  84
  85 /**
  86  * @class Ext.ux.TaskBarContainer
  87  * @extends Ext.Container
  88  */
  89 Ext.ux.TaskBarContainer = Ext.extend(Ext.Container, {
  90     initComponent : function() {
  91         Ext.ux.TaskBarContainer.superclass.initComponent.call(this);
  92
  93         this.el = Ext.get(this.el) || Ext.getBody();
  94         this.el.setHeight = Ext.emptyFn;
  95         this.el.setWidth = Ext.emptyFn;
  96         this.el.setSize = Ext.emptyFn;
  97         this.el.setStyle({
  98             overflow:'hidden',
  99             margin:'0',
 100             border:'0 none'
 101         });
 102         this.el.dom.scroll = 'no';
 103         this.allowDomMove = false;
 104         this.autoWidth = true;
 105         this.autoHeight = true;
 106         Ext.EventManager.onWindowResize(this.fireResize, this);
 107         this.renderTo = this.el;
 108     },
 109
 110     fireResize : function(w, h){
 111         this.onResize(w, h, w, h);
 112         this.fireEvent('resize', this, w, h, w, h);
 113     }
 114 });
 115
 116
 117
 118 /**
 119  * @class Ext.ux.TaskButtonsPanel
 120  * @extends Ext.BoxComponent
 121  */
 122 Ext.ux.TaskButtonsPanel = Ext.extend(Ext.BoxComponent, {
 123     activeButton: null,
 124     enableScroll: true,
 125     scrollIncrement: 0,
 126     scrollRepeatInterval: 400,
 127     scrollDuration: .35,
 128     animScroll: true,
 129     resizeButtons: true,
 130     buttonWidth: 168,
 131     minButtonWidth: 118,
 132     buttonMargin: 2,
 133     buttonWidthSet: false,
 134
 135     initComponent : function() {
 136         Ext.ux.TaskButtonsPanel.superclass.initComponent.call(this);
 137         this.on('resize', this.delegateUpdates);
 138         this.items = [];
 139
 140         this.stripWrap = Ext.get(this.el).createChild({
 141             cls: 'ux-taskbuttons-strip-wrap',
 142             cn: {
 143                 tag:'ul', cls:'ux-taskbuttons-strip'
 144             }
 145         });
 146         this.stripSpacer = Ext.get(this.el).createChild({
 147             cls:'ux-taskbuttons-strip-spacer'
 148         });
 149         this.strip = new Ext.Element(this.stripWrap.dom.firstChild);
 150
 151         this.edge = this.strip.createChild({
 152             tag:'li',
 153             cls:'ux-taskbuttons-edge'
 154         });
 155         this.strip.createChild({
 156             cls:'x-clear'
 157         });
 158     },
 159
 160     addButton : function(win){
 161         var li = this.strip.createChild({tag:'li'}, this.edge); // insert before the edge
 162         var btn = new Ext.ux.TaskBar.TaskButton(win, li);
 163
 164         this.items.push(btn);
 165
 166         if(!this.buttonWidthSet){
 167             this.lastButtonWidth = btn.container.getWidth();
 168         }
 169
 170         this.setActiveButton(btn);
 171         return btn;
 172     },
 173
 174     removeButton : function(btn){
 175         var li = document.getElementById(btn.container.id);
 176         btn.destroy();
 177         li.parentNode.removeChild(li);
 178
 179         var s = [];
 180         for(var i = 0, len = this.items.length; i < len; i++) {
 181             if(this.items[i] != btn){
 182                 s.push(this.items[i]);
 183             }
 184         }
 185         this.items = s;
 186
 187         this.delegateUpdates();
 188     },
 189
 190     setActiveButton : function(btn){
 191         this.activeButton = btn;
 192         this.delegateUpdates();
 193     },
 194
 195     delegateUpdates : function(){
 196         /*if(this.suspendUpdates){
 197             return;
 198         }*/
 199         if(this.resizeButtons && this.rendered){
 200             this.autoSize();
 201         }
 202         if(this.enableScroll && this.rendered){
 203             this.autoScroll();
 204         }
 205     },
 206
 207     autoSize : function(){
 208         var count = this.items.length;
 209         var ow = this.el.dom.offsetWidth;
 210         var aw = this.el.dom.clientWidth;
 211
 212         if(!this.resizeButtons || count < 1 || !aw){ // !aw for display:none
 213             return;
 214         }
 215
 216         var each = Math.max(Math.min(Math.floor((aw-4) / count) - this.buttonMargin, this.buttonWidth), this.minButtonWidth); // -4 for float errors in IE
 217         var btns = this.stripWrap.dom.getElementsByTagName('button');
 218
 219         this.lastButtonWidth = Ext.get(btns[0].id).findParent('li').offsetWidth;
 220
 221         for(var i = 0, len = btns.length; i < len; i++) {
 222             var btn = btns[i];
 223
 224             var tw = Ext.get(btns[i].id).findParent('li').offsetWidth;
 225             var iw = btn.offsetWidth;
 226
 227             btn.style.width = (each - (tw-iw)) + 'px';
 228         }
 229     },
 230
 231     autoScroll : function(){
 232         var count = this.items.length;
 233         var ow = this.el.dom.offsetWidth;
 234         var tw = this.el.dom.clientWidth;
 235
 236         var wrap = this.stripWrap;
 237         var cw = wrap.dom.offsetWidth;
 238         var pos = this.getScrollPos();
 239         var l = this.edge.getOffsetsTo(this.stripWrap)[0] + pos;
 240
 241         if(!this.enableScroll || count < 1 || cw < 20){ // 20 to prevent display:none issues
 242             return;
 243         }
 244
 245         wrap.setWidth(tw); // moved to here because of problem in Safari
 246
 247         if(l <= tw){
 248             wrap.dom.scrollLeft = 0;
 249             //wrap.setWidth(tw); moved from here because of problem in Safari
 250             if(this.scrolling){
 251                 this.scrolling = false;
 252                 this.el.removeClass('x-taskbuttons-scrolling');
 253                 this.scrollLeft.hide();
 254                 this.scrollRight.hide();
 255             }
 256         }else{
 257             if(!this.scrolling){
 258                 this.el.addClass('x-taskbuttons-scrolling');
 259             }
 260             tw -= wrap.getMargins('lr');
 261             wrap.setWidth(tw > 20 ? tw : 20);
 262             if(!this.scrolling){
 263                 if(!this.scrollLeft){
 264                     this.createScrollers();
 265                 }else{
 266                     this.scrollLeft.show();
 267                     this.scrollRight.show();
 268                 }
 269             }
 270             this.scrolling = true;
 271             if(pos > (l-tw)){ // ensure it stays within bounds
 272                 wrap.dom.scrollLeft = l-tw;
 273             }else{ // otherwise, make sure the active button is still visible
 274                 this.scrollToButton(this.activeButton, true); // true to animate
 275             }
 276             this.updateScrollButtons();
 277         }
 278     },
 279
 280     createScrollers : function(){
 281         var h = this.el.dom.offsetHeight; //var h = this.stripWrap.dom.offsetHeight;
 282
 283         // left
 284         var sl = this.el.insertFirst({
 285             cls:'ux-taskbuttons-scroller-left'
 286         });
 287         sl.setHeight(h);
 288         sl.addClassOnOver('ux-taskbuttons-scroller-left-over');
 289         this.leftRepeater = new Ext.util.ClickRepeater(sl, {
 290             interval : this.scrollRepeatInterval,
 291             handler: this.onScrollLeft,
 292             scope: this
 293         });
 294         this.scrollLeft = sl;
 295
 296         // right
 297         var sr = this.el.insertFirst({
 298             cls:'ux-taskbuttons-scroller-right'
 299         });
 300         sr.setHeight(h);
 301         sr.addClassOnOver('ux-taskbuttons-scroller-right-over');
 302         this.rightRepeater = new Ext.util.ClickRepeater(sr, {
 303             interval : this.scrollRepeatInterval,
 304             handler: this.onScrollRight,
 305             scope: this
 306         });
 307         this.scrollRight = sr;
 308     },
 309
 310     getScrollWidth : function(){
 311         return this.edge.getOffsetsTo(this.stripWrap)[0] + this.getScrollPos();
 312     },
 313
 314     getScrollPos : function(){
 315         return parseInt(this.stripWrap.dom.scrollLeft, 10) || 0;
 316     },
 317
 318     getScrollArea : function(){
 319         return parseInt(this.stripWrap.dom.clientWidth, 10) || 0;
 320     },
 321
 322     getScrollAnim : function(){
 323         return {
 324             duration: this.scrollDuration,
 325             callback: this.updateScrollButtons,
 326             scope: this
 327         };
 328     },
 329
 330     getScrollIncrement : function(){
 331         return (this.scrollIncrement || this.lastButtonWidth+2);
 332     },
 333
 334     /* getBtnEl : function(item){
 335         return document.getElementById(item.id);
 336     }, */
 337
 338     scrollToButton : function(item, animate){
 339         item = item.el.dom.parentNode; // li
 340         if(!item){ return; }
 341         var el = item; //this.getBtnEl(item);
 342         var pos = this.getScrollPos(), area = this.getScrollArea();
 343         var left = Ext.fly(el).getOffsetsTo(this.stripWrap)[0] + pos;
 344         var right = left + el.offsetWidth;
 345         if(left < pos){
 346             this.scrollTo(left, animate);
 347         }else if(right > (pos + area)){
 348             this.scrollTo(right - area, animate);
 349         }
 350     },
 351
 352     scrollTo : function(pos, animate){
 353         this.stripWrap.scrollTo('left', pos, animate ? this.getScrollAnim() : false);
 354         if(!animate){
 355             this.updateScrollButtons();
 356         }
 357     },
 358
 359     onScrollRight : function(){
 360         var sw = this.getScrollWidth()-this.getScrollArea();
 361         var pos = this.getScrollPos();
 362         var s = Math.min(sw, pos + this.getScrollIncrement());
 363         if(s != pos){
 364             this.scrollTo(s, this.animScroll);
 365         }
 366     },
 367
 368     onScrollLeft : function(){
 369         var pos = this.getScrollPos();
 370         var s = Math.max(0, pos - this.getScrollIncrement());
 371         if(s != pos){
 372             this.scrollTo(s, this.animScroll);
 373         }
 374     },
 375
 376     updateScrollButtons : function(){
 377         var pos = this.getScrollPos();
 378         this.scrollLeft[pos == 0 ? 'addClass' : 'removeClass']('ux-taskbuttons-scroller-left-disabled');
 379         this.scrollRight[pos >= (this.getScrollWidth()-this.getScrollArea()) ? 'addClass' : 'removeClass']('ux-taskbuttons-scroller-right-disabled');
 380     }
 381 });
 382
 383
 384
 385 /**
 386  * @class Ext.ux.TaskBar.TaskButton
 387  * @extends Ext.Button
 388  */
 389 Ext.ux.TaskBar.TaskButton = function(win, el){
 390     this.win = win;
 391     Ext.ux.TaskBar.TaskButton.superclass.constructor.call(this, {
 392         iconCls: win.iconCls,
 393         text: Ext.util.Format.ellipsis(win.title, 12),
 394         renderTo: el,
 395         handler : function(){
 396             if(win.minimized || win.hidden){
 397                 win.show();
 398             }else if(win == win.manager.getActive()){
 399                 win.minimize();
 400             }else{
 401                 win.toFront();
 402             }
 403         },
 404         clickEvent:'mousedown',
 405         template: new Ext.Template(
 406             '<table cellspacing="0" class="x-btn {3}"><tbody><tr>',
 407             '<td class="ux-taskbutton-left"><i>&#160;</i></td>',
 408             '<td class="ux-taskbutton-center"><em class="{5} unselectable="on">',
 409                 '<button class="x-btn-text {2}" type="{1}" style="height:28px;">{0}</button>',
 410             '</em></td>',
 411             '<td class="ux-taskbutton-right"><i>&#160;</i></td>',
 412             "</tr></tbody></table>")
 413     });
 414 };
 415
 416 Ext.extend(Ext.ux.TaskBar.TaskButton, Ext.Button, {
 417     onRender : function(){
 418         Ext.ux.TaskBar.TaskButton.superclass.onRender.apply(this, arguments);
 419
 420         this.cmenu = new Ext.menu.Menu({
 421             items: [{
 422                 text: 'Restore',
 423                 handler: function(){
 424                     if(!this.win.isVisible()){
 425                         this.win.show();
 426                     }else{
 427                         this.win.restore();
 428                     }
 429                 },
 430                 scope: this
 431             },{
 432                 text: 'Minimize',
 433                 handler: this.win.minimize,
 434                 scope: this.win
 435             },{
 436                 text: 'Maximize',
 437                 handler: this.win.maximize,
 438                 scope: this.win
 439             }, '-', {
 440                 text: 'Close',
 441                 handler: this.closeWin.createDelegate(this, this.win, true),
 442                 scope: this.win
 443             }]
 444         });
 445
 446         this.cmenu.on('beforeshow', function(){
 447             var items = this.cmenu.items.items;
 448             var w = this.win;
 449             items[0].setDisabled(w.maximized !== true && w.hidden !== true);
 450             items[1].setDisabled(w.minimized === true);
 451             items[2].setDisabled(w.maximized === true || w.hidden === true);
 452         }, this);
 453
 454         this.el.on('contextmenu', function(e){
 455             e.stopEvent();
 456             if(!this.cmenu.el){
 457                 this.cmenu.render();
 458             }
 459             var xy = e.getXY();
 460             xy[1] -= this.cmenu.el.getHeight();
 461             this.cmenu.showAt(xy);
 462         }, this);
 463     },
 464
 465     closeWin : function(cMenu, e, win){
 466         if(!win.isVisible()){
 467             win.show();
 468         }else{
 469             win.restore();
 470         }
 471         win.close();
 472     }
 473 });