git.roojs.org Git - roojs1/blob - Roo/dialog/UploadCropbox.js

   1
   2 /*
   3 * Licence: LGPL
   4 */
   5
   6 /**
   7  * @class Roo.dialog.UploadCropbox
   8  * @extends Roo.BoxComponent
   9  * Dialog UploadCropbox class
  10  * @cfg {String} emptyText show when image has been loaded
  11  * @cfg {String} rotateNotify show when image too small to rotate
  12  * @cfg {Number} errorTimeout default 3000
  13  * @cfg {Number} minWidth default 300
  14  * @cfg {Number} minHeight default 300
  15  * @cfg {Number} outputMaxWidth default 1200
  16  * @cfg {Array} buttons default ['rotateLeft', 'pictureBtn', 'rotateRight']
  17  * @cfg {Boolean} isDocument (true|false) default false
  18  * @cfg {String} url action url
  19  * @cfg {String} paramName default 'imageUpload'
  20  * @cfg {String} method default POST
  21  * @cfg {Boolean} loadMask (true|false) default true
  22  * @cfg {Boolean} loadingText default 'Loading...'
  23  *
  24  * @constructor
  25  * Create a new UploadCropbox
  26  * @param {Object} config The config object
  27  */
  28
  29  Roo.dialog.UploadCropbox = function(config){
  30     Roo.dialog.UploadCropbox.superclass.constructor.call(this, config);
  31
  32     this.addEvents({
  33         /**
  34          * @event beforeselectfile
  35          * Fire before select file
  36          * @param {Roo.dialog.UploadCropbox} this
  37          */
  38         "beforeselectfile" : true,
  39         /**
  40          * @event initial
  41          * Fire after initEvent
  42          * @param {Roo.dialog.UploadCropbox} this
  43          */
  44         "initial" : true,
  45         /**
  46          * @event crop
  47          * Fire after initEvent
  48          * @param {Roo.dialog.UploadCropbox} this
  49          * @param {String} data
  50          */
  51         "crop" : true,
  52         /**
  53          * @event prepare
  54          * Fire when preparing the file data
  55          * @param {Roo.dialog.UploadCropbox} this
  56          * @param {Object} file
  57          */
  58         "prepare" : true,
  59         /**
  60          * @event exception
  61          * Fire when get exception
  62          * @param {Roo.dialog.UploadCropbox} this
  63          * @param {XMLHttpRequest} xhr
  64          */
  65         "exception" : true,
  66         /**
  67          * @event beforeloadcanvas
  68          * Fire before load the canvas
  69          * @param {Roo.dialog.UploadCropbox} this
  70          * @param {String} src
  71          */
  72         "beforeloadcanvas" : true,
  73         /**
  74          * @event trash
  75          * Fire when trash image
  76          * @param {Roo.dialog.UploadCropbox} this
  77          */
  78         "trash" : true,
  79         /**
  80          * @event download
  81          * Fire when download the image
  82          * @param {Roo.dialog.UploadCropbox} this
  83          */
  84         "download" : true,
  85         /**
  86          * @event footerbuttonclick
  87          * Fire when footerbuttonclick
  88          * @param {Roo.dialog.UploadCropbox} this
  89          * @param {String} type
  90          */
  91         "footerbuttonclick" : true,
  92         /**
  93          * @event resize
  94          * Fire when resize
  95          * @param {Roo.dialog.UploadCropbox} this
  96          */
  97         "resize" : true,
  98         /**
  99          * @event rotate
 100          * Fire when rotate the image
 101          * @param {Roo.dialog.UploadCropbox} this
 102          * @param {String} pos
 103          */
 104         "rotate" : true,
 105         /**
 106          * @event inspect
 107          * Fire when inspect the file
 108          * @param {Roo.dialog.UploadCropbox} this
 109          * @param {Object} file
 110          */
 111         "inspect" : true,
 112         /**
 113          * @event upload
 114          * Fire when xhr upload the file
 115          * @param {Roo.dialog.UploadCropbox} this
 116          * @param {Object} data
 117          */
 118         "upload" : true,
 119         /**
 120          * @event arrange
 121          * Fire when arrange the file data
 122          * @param {Roo.dialog.UploadCropbox} this
 123          * @param {Object} formData
 124          */
 125         "arrange" : true,
 126         /**
 127          * @event loadcanvas
 128          * Fire after load the canvas
 129          * @param {Roo.dialog.UploadCropbox}
 130          * @param {Object} imgEl
 131          */
 132         "loadcanvas" : true
 133     });
 134
 135     this.buttons = this.buttons || Roo.dialog.UploadCropbox.footer.STANDARD;
 136 };
 137
 138 Roo.extend(Roo.dialog.UploadCropbox, Roo.Component,  {
 139
 140     emptyText : 'Click to upload image',
 141     rotateNotify : 'Image is too small to rotate',
 142     errorTimeout : 3000,
 143     scale : 0,
 144     baseScale : 1,
 145     rotate : 0,
 146     dragable : false,
 147     pinching : false,
 148     mouseX : 0,
 149     mouseY : 0,
 150     cropData : false,
 151     minWidth : 300,
 152     minHeight : 300,
 153     file : false,
 154     exif : {},
 155     baseRotate : 1,
 156     cropType : 'image/jpeg',
 157     buttons : false,
 158     canvasLoaded : false,
 159     isDocument : false,
 160     method : 'POST',
 161     paramName : 'imageUpload',
 162     loadMask : true,
 163     loadingText : 'Loading...',
 164     maskEl : false,
 165
 166     getAutoCreate : function()
 167     {
 168         var cfg = {
 169             tag : 'div',
 170             cls : 'roo-upload-cropbox',
 171             cn : [
 172                 {
 173                     tag : 'input',
 174                     cls : 'roo-upload-cropbox-selector',
 175                     type : 'file'
 176                 },
 177                 {
 178                     tag : 'div',
 179                     cls : 'roo-upload-cropbox-body',
 180                     style : 'cursor:pointer',
 181                     cn : [
 182                         {
 183                             tag : 'div',
 184                             cls : 'roo-upload-cropbox-preview'
 185                         },
 186                         {
 187                             tag : 'div',
 188                             cls : 'roo-upload-cropbox-thumb'
 189                         },
 190                         {
 191                             tag : 'div',
 192                             cls : 'roo-upload-cropbox-empty-notify',
 193                             html : this.emptyText
 194                         },
 195                         {
 196                             tag : 'div',
 197                             cls : 'roo-upload-cropbox-error-notify alert alert-danger',
 198                             html : this.rotateNotify
 199                         }
 200                     ]
 201                 },
 202                 {
 203                     tag : 'div',
 204                     cls : 'roo-upload-cropbox-footer',
 205                     cn : {
 206                         tag : 'div',
 207                         cls : 'btn-group btn-group-justified roo-upload-cropbox-btn-group',
 208                         cn : []
 209                     }
 210                 }
 211             ]
 212         };
 213
 214         return cfg;
 215     },
 216
 217     onRender : function(ct, position)
 218     {
 219         Roo.dialog.UploadCropbox.superclass.onRender.call(this, ct, position);
 220
 221         if(this.el){
 222             if (this.el.attr('xtype')) {
 223                 this.el.attr('xtypex', this.el.attr('xtype'));
 224                 this.el.dom.removeAttribute('xtype');
 225
 226                 this.initEvents();
 227             }
 228         }
 229         else {
 230             var cfg = Roo.apply({},  this.getAutoCreate());
 231
 232             cfg.id = this.id || Roo.id();
 233
 234             if (this.cls) {
 235                 cfg.cls = (typeof(cfg.cls) == 'undefined' ? this.cls : cfg.cls) + ' ' + this.cls;
 236             }
 237
 238             if (this.style) { // fixme needs to support more complex style data.
 239                 cfg.style = (typeof(cfg.style) == 'undefined' ? this.style : cfg.style) + '; ' + this.style;
 240             }
 241
 242             this.el = ct.createChild(cfg, position);
 243
 244             this.initEvents();
 245         }
 246
 247         if (this.buttons.length) {
 248
 249             Roo.each(this.buttons, function(bb) {
 250
 251                 var btn = this.el.select('.roo-upload-cropbox-footer div.roo-upload-cropbox-btn-group').first().createChild(bb);
 252
 253                 btn.on('click', this.onFooterButtonClick.createDelegate(this, [bb.action], true));
 254
 255             }, this);
 256         }
 257
 258         if(this.loadMask){
 259             this.maskEl = this.el;
 260         }
 261     },
 262
 263     initEvents : function()
 264     {
 265         this.urlAPI = (window.createObjectURL && window) ||
 266                                 (window.URL && URL.revokeObjectURL && URL) ||
 267                                 (window.webkitURL && webkitURL);
 268
 269         this.bodyEl = this.el.select('.roo-upload-cropbox-body', true).first();
 270         this.bodyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 271
 272         this.selectorEl = this.el.select('.roo-upload-cropbox-selector', true).first();
 273         this.selectorEl.hide();
 274
 275         this.previewEl = this.el.select('.roo-upload-cropbox-preview', true).first();
 276         this.previewEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 277
 278         this.thumbEl = this.el.select('.roo-upload-cropbox-thumb', true).first();
 279         this.thumbEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 280         this.thumbEl.hide();
 281
 282         this.notifyEl = this.el.select('.roo-upload-cropbox-empty-notify', true).first();
 283         this.notifyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 284
 285         this.errorEl = this.el.select('.roo-upload-cropbox-error-notify', true).first();
 286         this.errorEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 287         this.errorEl.hide();
 288
 289         this.footerEl = this.el.select('.roo-upload-cropbox-footer', true).first();
 290         this.footerEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 291         this.footerEl.hide();
 292
 293         this.setThumbBoxSize();
 294
 295         this.bind();
 296
 297         this.resize();
 298
 299         this.fireEvent('initial', this);
 300     },
 301
 302     bind : function()
 303     {
 304         var _this = this;
 305
 306         window.addEventListener("resize", function() { _this.resize(); } );
 307
 308         this.bodyEl.on('click', this.beforeSelectFile, this);
 309
 310         if(Roo.isTouch){
 311             this.bodyEl.on('touchstart', this.onTouchStart, this);
 312             this.bodyEl.on('touchmove', this.onTouchMove, this);
 313             this.bodyEl.on('touchend', this.onTouchEnd, this);
 314         }
 315
 316         if(!Roo.isTouch){
 317             this.bodyEl.on('mousedown', this.onMouseDown, this);
 318             this.bodyEl.on('mousemove', this.onMouseMove, this);
 319             var mousewheel = (/Firefox/i.test(navigator.userAgent))? 'DOMMouseScroll' : 'mousewheel';
 320             this.bodyEl.on(mousewheel, this.onMouseWheel, this);
 321             Roo.get(document).on('mouseup', this.onMouseUp, this);
 322         }
 323
 324         this.selectorEl.on('change', this.onFileSelected, this);
 325     },
 326
 327     reset : function()
 328     {
 329         this.scale = 0;
 330         this.baseScale = 1;
 331         this.rotate = 0;
 332         this.baseRotate = 1;
 333         this.dragable = false;
 334         this.pinching = false;
 335         this.mouseX = 0;
 336         this.mouseY = 0;
 337         this.cropData = false;
 338         this.notifyEl.dom.innerHTML = this.emptyText;
 339
 340         // this.selectorEl.dom.value = '';
 341
 342     },
 343
 344     resize : function()
 345     {
 346         if(this.fireEvent('resize', this) != false){
 347             this.setThumbBoxPosition();
 348             this.setCanvasPosition();
 349         }
 350     },
 351
 352     onFooterButtonClick : function(e, el, o, type)
 353     {
 354         switch (type) {
 355             case 'rotate-left' :
 356                 this.onRotateLeft(e);
 357                 break;
 358             case 'rotate-right' :
 359                 this.onRotateRight(e);
 360                 break;
 361             case 'picture' :
 362                 this.beforeSelectFile(e);
 363                 break;
 364             case 'trash' :
 365                 this.trash(e);
 366                 break;
 367             case 'crop' :
 368                 this.crop(e);
 369                 break;
 370             case 'download' :
 371                 this.download(e);
 372                 break;
 373             default :
 374                 break;
 375         }
 376
 377         this.fireEvent('footerbuttonclick', this, type);
 378     },
 379
 380     beforeSelectFile : function(e)
 381     {
 382         e.preventDefault();
 383
 384         if(this.fireEvent('beforeselectfile', this) != false){
 385             this.selectorEl.dom.click();
 386         }
 387     },
 388
 389     onFileSelected : function(e)
 390     {
 391         e.preventDefault();
 392
 393         if(typeof(this.selectorEl.dom.files) == 'undefined' || !this.selectorEl.dom.files.length){
 394             return;
 395         }
 396
 397         var file = this.selectorEl.dom.files[0];
 398
 399         if(this.fireEvent('inspect', this, file) != false){
 400             this.prepare(file);
 401         }
 402
 403     },
 404
 405     trash : function(e)
 406     {
 407         this.fireEvent('trash', this);
 408     },
 409
 410     download : function(e)
 411     {
 412         this.fireEvent('download', this);
 413     },
 414
 415     loadCanvas : function(src)
 416     {
 417         if(this.fireEvent('beforeloadcanvas', this, src) != false){
 418
 419             this.reset();
 420
 421             this.imageEl = document.createElement('img');
 422
 423             var _this = this;
 424
 425             this.imageEl.addEventListener("load", function(){ _this.onLoadCanvas(); });
 426
 427             this.imageEl.src = src;
 428         }
 429     },
 430
 431     onLoadCanvas : function()
 432     {
 433         this.imageEl.OriginWidth = this.imageEl.naturalWidth || this.imageEl.width;
 434         this.imageEl.OriginHeight = this.imageEl.naturalHeight || this.imageEl.height;
 435
 436         if(this.fireEvent('loadcanvas', this, this.imageEl) != false){
 437
 438             this.bodyEl.un('click', this.beforeSelectFile, this);
 439
 440             this.notifyEl.hide();
 441             this.thumbEl.show();
 442             this.footerEl.show();
 443
 444             this.baseRotateLevel();
 445
 446             if(this.isDocument){
 447                 this.setThumbBoxSize();
 448             }
 449
 450             this.setThumbBoxPosition();
 451
 452             this.baseScaleLevel();
 453
 454             this.draw();
 455
 456             this.resize();
 457
 458             this.canvasLoaded = true;
 459
 460         }
 461
 462         if(this.loadMask){
 463             this.maskEl.unmask();
 464         }
 465
 466     },
 467
 468     setCanvasPosition : function()
 469     {
 470         if(!this.canvasEl){
 471             return;
 472         }
 473
 474         var pw = Math.ceil((this.bodyEl.getWidth() - this.canvasEl.width) / 2);
 475         var ph = Math.ceil((this.bodyEl.getHeight() - this.canvasEl.height) / 2);
 476
 477         this.previewEl.setLeft(pw);
 478         this.previewEl.setTop(ph);
 479
 480     },
 481
 482     onMouseDown : function(e)
 483     {
 484         e.stopEvent();
 485
 486         this.dragable = true;
 487         this.pinching = false;
 488
 489         if(this.isDocument && (this.canvasEl.width < this.thumbEl.getWidth() || this.canvasEl.height < this.thumbEl.getHeight())){
 490             this.dragable = false;
 491             return;
 492         }
 493
 494         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 495         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 496
 497     },
 498
 499     onMouseMove : function(e)
 500     {
 501         e.stopEvent();
 502
 503         if(!this.canvasLoaded){
 504             return;
 505         }
 506
 507         if (!this.dragable){
 508             return;
 509         }
 510
 511         var minX = Math.ceil(this.thumbEl.getLeft(true));
 512         var minY = Math.ceil(this.thumbEl.getTop(true));
 513
 514         var maxX = Math.ceil(minX + this.thumbEl.getWidth() - this.canvasEl.width);
 515         var maxY = Math.ceil(minY + this.thumbEl.getHeight() - this.canvasEl.height);
 516
 517         if(minX > maxX) {
 518             var tempX = minX;
 519             minX = maxX;
 520             maxX = tempX;
 521         }
 522
 523         if(minY > maxY) {
 524             var tempY = minY;
 525             minY = maxY;
 526             maxY = tempY;
 527         }
 528
 529         var x = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 530         var y = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 531
 532         x = x - this.mouseX;
 533         y = y - this.mouseY;
 534
 535         var bgX = Math.ceil(x + this.previewEl.getLeft(true));
 536         var bgY = Math.ceil(y + this.previewEl.getTop(true));
 537
 538         bgX = (bgX < minX) ? minX : ((bgX > maxX) ? maxX : bgX);
 539         bgY = (bgY < minY) ? minY : ((bgY > maxY) ? maxY : bgY);
 540
 541         this.previewEl.setLeft(bgX);
 542         this.previewEl.setTop(bgY);
 543
 544         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 545         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 546     },
 547
 548     onMouseUp : function(e)
 549     {
 550         e.stopEvent();
 551
 552         this.dragable = false;
 553     },
 554
 555     onMouseWheel : function(e)
 556     {
 557         e.stopEvent();
 558
 559         this.startScale = this.scale;
 560         this.scale = (e.getWheelDelta() == 1) ? (this.scale + 1) : (this.scale - 1);
 561
 562         if(!this.zoomable()){
 563             this.scale = this.startScale;
 564             return;
 565         }
 566
 567
 568         this.draw();
 569
 570         return;
 571     },
 572
 573     zoomable : function()
 574     {
 575         var minScale = this.thumbEl.getWidth() / this.minWidth;
 576
 577         if(this.minWidth < this.minHeight){
 578             minScale = this.thumbEl.getHeight() / this.minHeight;
 579         }
 580
 581         var width = Math.ceil(this.imageEl.OriginWidth * this.getScaleLevel() / minScale);
 582         var height = Math.ceil(this.imageEl.OriginHeight * this.getScaleLevel() / minScale);
 583
 584
 585         var maxWidth = this.imageEl.OriginWidth;
 586         var maxHeight = this.imageEl.OriginHeight;
 587
 588         if(
 589                 this.isDocument &&
 590                 (this.rotate == 0 || this.rotate == 180) &&
 591                 (
 592                     width > this.imageEl.OriginWidth ||
 593                     height > this.imageEl.OriginHeight ||
 594                     (width < this.minWidth && height < this.minHeight)
 595                 )
 596         ){
 597             return false;
 598         }
 599
 600         if(
 601                 this.isDocument &&
 602                 (this.rotate == 90 || this.rotate == 270) &&
 603                 (
 604                     width > this.imageEl.OriginWidth ||
 605                     height > this.imageEl.OriginHeight ||
 606                     (width < this.minHeight && height < this.minWidth)
 607                 )
 608         ){
 609             return false;
 610         }
 611
 612         if(
 613                 !this.isDocument &&
 614                 (this.rotate == 0 || this.rotate == 180) &&
 615                 (
 616                     (this.imageEl.OriginWidth >= this.minWidth) && width < this.minWidth ||
 617                     (this.imageEl.OriginHeight >= this.minHeight) && height < this.minHeight ||
 618                     width > maxWidth ||
 619                     height > maxHeight
 620                 )
 621         ){
 622             return false;
 623         }
 624
 625         if(
 626                 !this.isDocument &&
 627                 (this.rotate == 90 || this.rotate == 270) &&
 628                 (
 629                     width < this.minHeight ||
 630                     width > this.imageEl.OriginWidth ||
 631                     height < this.minWidth ||
 632                     height > this.imageEl.OriginHeight
 633                 )
 634         ){
 635             return false;
 636         }
 637
 638         return true;
 639
 640     },
 641
 642     onRotateLeft : function(e)
 643     {
 644         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 645
 646             var minScale = this.thumbEl.getWidth() / this.minWidth;
 647
 648             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 649             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 650
 651             this.startScale = this.scale;
 652
 653             while (this.getScaleLevel() < minScale){
 654
 655                 this.scale = this.scale + 1;
 656
 657                 if(!this.zoomable()){
 658                     break;
 659                 }
 660
 661                 if(
 662                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 663                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 664                 ){
 665                     continue;
 666                 }
 667
 668                 this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 669
 670                 this.draw();
 671
 672                 return;
 673             }
 674
 675             this.scale = this.startScale;
 676
 677             this.onRotateFail();
 678
 679             return false;
 680         }
 681
 682         this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 683
 684         if(this.isDocument){
 685             this.setThumbBoxSize();
 686             this.setThumbBoxPosition();
 687             this.setCanvasPosition();
 688         }
 689
 690         this.draw();
 691
 692         this.fireEvent('rotate', this, 'left');
 693
 694     },
 695
 696     onRotateRight : function(e)
 697     {
 698         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 699
 700             var minScale = this.thumbEl.getWidth() / this.minWidth;
 701
 702             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 703             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 704
 705             this.startScale = this.scale;
 706
 707             while (this.getScaleLevel() < minScale){
 708
 709                 this.scale = this.scale + 1;
 710
 711                 if(!this.zoomable()){
 712                     break;
 713                 }
 714
 715                 if(
 716                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 717                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 718                 ){
 719                     continue;
 720                 }
 721
 722                 this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 723
 724                 this.draw();
 725
 726                 return;
 727             }
 728
 729             this.scale = this.startScale;
 730
 731             this.onRotateFail();
 732
 733             return false;
 734         }
 735
 736         this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 737
 738         if(this.isDocument){
 739             this.setThumbBoxSize();
 740             this.setThumbBoxPosition();
 741             this.setCanvasPosition();
 742         }
 743
 744         this.draw();
 745
 746         this.fireEvent('rotate', this, 'right');
 747     },
 748
 749     onRotateFail : function()
 750     {
 751         this.errorEl.show(true);
 752
 753         var _this = this;
 754
 755         (function() { _this.errorEl.hide(true); }).defer(this.errorTimeout);
 756     },
 757
 758     draw : function()
 759     {
 760         this.previewEl.dom.innerHTML = '';
 761
 762         var canvasEl = document.createElement("canvas");
 763
 764         var contextEl = canvasEl.getContext("2d");
 765
 766         canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 767         canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 768         var center = this.imageEl.OriginWidth / 2;
 769
 770         if(this.imageEl.OriginWidth < this.imageEl.OriginHeight){
 771             canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 772             canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 773             center = this.imageEl.OriginHeight / 2;
 774         }
 775
 776         contextEl.scale(this.getScaleLevel(), this.getScaleLevel());
 777
 778         contextEl.translate(center, center);
 779         contextEl.rotate(this.rotate * Math.PI / 180);
 780
 781         contextEl.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 782
 783         this.canvasEl = document.createElement("canvas");
 784
 785         this.contextEl = this.canvasEl.getContext("2d");
 786
 787         switch (this.rotate) {
 788             case 0 :
 789
 790                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 791                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 792
 793                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 794
 795                 break;
 796             case 90 :
 797
 798                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 799                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 800
 801                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 802                     this.contextEl.drawImage(canvasEl, Math.abs(this.canvasEl.width - this.canvasEl.height), 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 803                     break;
 804                 }
 805
 806                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 807
 808                 break;
 809             case 180 :
 810
 811                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 812                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 813
 814                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 815                     this.contextEl.drawImage(canvasEl, 0, Math.abs(this.canvasEl.width - this.canvasEl.height), this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 816                     break;
 817                 }
 818
 819                 this.contextEl.drawImage(canvasEl, Math.abs(this.canvasEl.width - this.canvasEl.height), 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 820
 821                 break;
 822             case 270 :
 823
 824                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 825                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 826
 827                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 828                     this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 829                     break;
 830                 }
 831
 832                 this.contextEl.drawImage(canvasEl, 0, Math.abs(this.canvasEl.width - this.canvasEl.height), this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 833
 834                 break;
 835             default :
 836                 break;
 837         }
 838
 839         this.previewEl.appendChild(this.canvasEl);
 840
 841         this.setCanvasPosition();
 842     },
 843
 844     crop : function()
 845     {
 846         if(!this.canvasLoaded){
 847             return;
 848         }
 849
 850         var imageCanvas = document.createElement("canvas");
 851
 852         var imageContext = imageCanvas.getContext("2d");
 853
 854         imageCanvas.width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 855         imageCanvas.height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 856
 857         var center = imageCanvas.width / 2;
 858
 859         imageContext.translate(center, center);
 860
 861         imageContext.rotate(this.rotate * Math.PI / 180);
 862
 863         imageContext.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 864
 865         var canvas = document.createElement("canvas");
 866
 867         var context = canvas.getContext("2d");
 868
 869         canvas.width = this.thumbEl.getWidth() / this.getScaleLevel();
 870
 871         canvas.height = this.thumbEl.getHeight() / this.getScaleLevel();
 872
 873         switch (this.rotate) {
 874             case 0 :
 875
 876                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 877                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 878
 879                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 880                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 881
 882                 var sx = this.thumbEl.getLeft(true) - this.previewEl.getLeft(true);
 883                 var sy = this.thumbEl.getTop(true) - this.previewEl.getTop(true);
 884
 885                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 886                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 887
 888                 if(canvas.width > 1200) {
 889                     var scale = 1200 / canvas.width;
 890                     canvas.width = canvas.width * scale;
 891                     canvas.height = canvas.height * scale;
 892                     context.scale(scale, scale);
 893                 }
 894
 895                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 896
 897                 break;
 898             case 90 :
 899
 900                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 901                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 902
 903                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 904                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 905
 906                 var targetWidth = this.minWidth - 2 * x;
 907                 var targetHeight = this.minHeight - 2 * y;
 908
 909                 var scale = 1;
 910
 911                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 912                     scale = targetWidth / width;
 913                 }
 914
 915                 if(x > 0 && y == 0){
 916                     scale = targetHeight / height;
 917                 }
 918
 919                 if(x > 0 && y > 0){
 920                     scale = targetWidth / width;
 921
 922                     if(width < height){
 923                         scale = targetHeight / height;
 924                     }
 925                 }
 926
 927                 context.scale(scale, scale);
 928
 929                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 930                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 931
 932                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 933                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 934
 935                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 936
 937                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 938
 939                 break;
 940             case 180 :
 941
 942                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 943                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 944
 945                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 946                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 947
 948                 var targetWidth = this.minWidth - 2 * x;
 949                 var targetHeight = this.minHeight - 2 * y;
 950
 951                 var scale = 1;
 952
 953                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 954                     scale = targetWidth / width;
 955                 }
 956
 957                 if(x > 0 && y == 0){
 958                     scale = targetHeight / height;
 959                 }
 960
 961                 if(x > 0 && y > 0){
 962                     scale = targetWidth / width;
 963
 964                     if(width < height){
 965                         scale = targetHeight / height;
 966                     }
 967                 }
 968
 969                 context.scale(scale, scale);
 970
 971                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 972                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 973
 974                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 975                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 976
 977                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
 978                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 979
 980                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 981
 982                 break;
 983             case 270 :
 984
 985                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 986                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 987
 988                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 989                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 990
 991                 var targetWidth = this.minWidth - 2 * x;
 992                 var targetHeight = this.minHeight - 2 * y;
 993
 994                 var scale = 1;
 995
 996                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 997                     scale = targetWidth / width;
 998                 }
 999
1000                 if(x > 0 && y == 0){
1001                     scale = targetHeight / height;
1002                 }
1003
1004                 if(x > 0 && y > 0){
1005                     scale = targetWidth / width;
1006
1007                     if(width < height){
1008                         scale = targetHeight / height;
1009                     }
1010                 }
1011
1012                 context.scale(scale, scale);
1013                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1014                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1015
1016                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1017                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1018
1019                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1020
1021                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1022
1023                 break;
1024             default :
1025                 break;
1026         }
1027
1028         this.cropData = canvas.toDataURL(this.cropType);
1029
1030         if(this.fireEvent('crop', this, this.cropData) !== false){
1031             this.process(this.file, this.cropData);
1032         }
1033
1034         return;
1035
1036     },
1037
1038     setThumbBoxSize : function()
1039     {
1040         var width, height;
1041
1042         if(this.isDocument && typeof(this.imageEl) != 'undefined'){
1043             width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.max(this.minWidth, this.minHeight) : Math.min(this.minWidth, this.minHeight);
1044             height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.min(this.minWidth, this.minHeight) : Math.max(this.minWidth, this.minHeight);
1045
1046             this.minWidth = width;
1047             this.minHeight = height;
1048
1049             if(this.rotate == 90 || this.rotate == 270){
1050                 this.minWidth = height;
1051                 this.minHeight = width;
1052             }
1053         }
1054
1055         height = 300;
1056         width = Math.ceil(this.minWidth * height / this.minHeight);
1057
1058         if(this.minWidth > this.minHeight){
1059             width = 300;
1060             height = Math.ceil(this.minHeight * width / this.minWidth);
1061         }
1062
1063         this.thumbEl.setStyle({
1064             width : width + 'px',
1065             height : height + 'px'
1066         });
1067
1068         return;
1069
1070     },
1071
1072     setThumbBoxPosition : function()
1073     {
1074         var x = Math.ceil((this.bodyEl.getWidth() - this.thumbEl.getWidth()) / 2 );
1075         var y = Math.ceil((this.bodyEl.getHeight() - this.thumbEl.getHeight()) / 2);
1076
1077         this.thumbEl.setLeft(x);
1078         this.thumbEl.setTop(y);
1079
1080     },
1081
1082     baseRotateLevel : function()
1083     {
1084         this.baseRotate = 1;
1085
1086         if(
1087                 typeof(this.exif) != 'undefined' &&
1088                 typeof(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != 'undefined' &&
1089                 [1, 3, 6, 8].indexOf(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != -1
1090         ){
1091             this.baseRotate = this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']];
1092         }
1093
1094         this.rotate = Roo.dialog.UploadCropbox['Orientation'][this.baseRotate];
1095
1096     },
1097
1098     baseScaleLevel : function()
1099     {
1100         var width, height;
1101
1102         if(this.isDocument){
1103
1104             if(this.baseRotate == 6 || this.baseRotate == 8){
1105
1106                 height = this.thumbEl.getHeight();
1107                 this.baseScale = height / this.imageEl.OriginWidth;
1108
1109                 if(this.imageEl.OriginHeight * this.baseScale > this.thumbEl.getWidth()){
1110                     width = this.thumbEl.getWidth();
1111                     this.baseScale = width / this.imageEl.OriginHeight;
1112                 }
1113
1114                 return;
1115             }
1116
1117             height = this.thumbEl.getHeight();
1118             this.baseScale = height / this.imageEl.OriginHeight;
1119
1120             if(this.imageEl.OriginWidth * this.baseScale > this.thumbEl.getWidth()){
1121                 width = this.thumbEl.getWidth();
1122                 this.baseScale = width / this.imageEl.OriginWidth;
1123             }
1124
1125             return;
1126         }
1127
1128         if(this.baseRotate == 6 || this.baseRotate == 8){
1129
1130             width = this.thumbEl.getHeight();
1131             this.baseScale = width / this.imageEl.OriginHeight;
1132
1133             if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getWidth()){
1134                 height = this.thumbEl.getWidth();
1135                 this.baseScale = height / this.imageEl.OriginHeight;
1136             }
1137
1138             if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1139                 height = this.thumbEl.getWidth();
1140                 this.baseScale = height / this.imageEl.OriginHeight;
1141
1142                 if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getHeight()){
1143                     width = this.thumbEl.getHeight();
1144                     this.baseScale = width / this.imageEl.OriginWidth;
1145                 }
1146             }
1147
1148             return;
1149         }
1150
1151         width = this.thumbEl.getWidth();
1152         this.baseScale = width / this.imageEl.OriginWidth;
1153
1154         if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getHeight()){
1155             height = this.thumbEl.getHeight();
1156             this.baseScale = height / this.imageEl.OriginHeight;
1157         }
1158
1159         if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1160
1161             height = this.thumbEl.getHeight();
1162             this.baseScale = height / this.imageEl.OriginHeight;
1163
1164             if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getWidth()){
1165                 width = this.thumbEl.getWidth();
1166                 this.baseScale = width / this.imageEl.OriginWidth;
1167             }
1168
1169         }
1170
1171         if(this.imageEl.OriginWidth < this.minWidth || this.imageEl.OriginHeight < this.minHeight) {
1172             this.baseScale = width / this.minWidth;
1173         }
1174
1175         return;
1176     },
1177
1178     getScaleLevel : function()
1179     {
1180         return this.baseScale * Math.pow(1.02, this.scale);
1181     },
1182
1183     onTouchStart : function(e)
1184     {
1185         if(!this.canvasLoaded){
1186             this.beforeSelectFile(e);
1187             return;
1188         }
1189
1190         var touches = e.browserEvent.touches;
1191
1192         if(!touches){
1193             return;
1194         }
1195
1196         if(touches.length == 1){
1197             this.onMouseDown(e);
1198             return;
1199         }
1200
1201         if(touches.length != 2){
1202             return;
1203         }
1204
1205         var coords = [];
1206
1207         for(var i = 0, finger; finger = touches[i]; i++){
1208             coords.push(finger.pageX, finger.pageY);
1209         }
1210
1211         var x = Math.pow(coords[0] - coords[2], 2);
1212         var y = Math.pow(coords[1] - coords[3], 2);
1213
1214         this.startDistance = Math.sqrt(x + y);
1215
1216         this.startScale = this.scale;
1217
1218         this.pinching = true;
1219         this.dragable = false;
1220
1221     },
1222
1223     onTouchMove : function(e)
1224     {
1225         if(!this.pinching && !this.dragable){
1226             return;
1227         }
1228
1229         var touches = e.browserEvent.touches;
1230
1231         if(!touches){
1232             return;
1233         }
1234
1235         if(this.dragable){
1236             this.onMouseMove(e);
1237             return;
1238         }
1239
1240         var coords = [];
1241
1242         for(var i = 0, finger; finger = touches[i]; i++){
1243             coords.push(finger.pageX, finger.pageY);
1244         }
1245
1246         var x = Math.pow(coords[0] - coords[2], 2);
1247         var y = Math.pow(coords[1] - coords[3], 2);
1248
1249         this.endDistance = Math.sqrt(x + y);
1250
1251         this.scale = this.startScale + Math.floor(Math.log(this.endDistance / this.startDistance) / Math.log(1.1));
1252
1253         if(!this.zoomable()){
1254             this.scale = this.startScale;
1255             return;
1256         }
1257
1258         this.draw();
1259
1260     },
1261
1262     onTouchEnd : function(e)
1263     {
1264         this.pinching = false;
1265         this.dragable = false;
1266
1267     },
1268
1269     process : function(file, crop)
1270     {
1271         if(this.loadMask){
1272             this.maskEl.mask(this.loadingText);
1273         }
1274
1275         this.xhr = new XMLHttpRequest();
1276
1277         file.xhr = this.xhr;
1278
1279         this.xhr.open(this.method, this.url, true);
1280
1281         var headers = {
1282             "Accept": "application/json",
1283             "Cache-Control": "no-cache",
1284             "X-Requested-With": "XMLHttpRequest"
1285         };
1286
1287         for (var headerName in headers) {
1288             var headerValue = headers[headerName];
1289             if (headerValue) {
1290                 this.xhr.setRequestHeader(headerName, headerValue);
1291             }
1292         }
1293
1294         var _this = this;
1295
1296         this.xhr.onload = function()
1297         {
1298             _this.xhrOnLoad(_this.xhr);
1299         }
1300
1301         this.xhr.onerror = function()
1302         {
1303             _this.xhrOnError(_this.xhr);
1304         }
1305
1306         var formData = new FormData();
1307
1308         formData.append("onid", "43024");
1309         formData.append("ontable", "pressrelease_boilerplate");
1310
1311         formData.append('returnHTML', 'NO');
1312
1313         if(crop){
1314             formData.append('crop', crop);
1315             var blobBin = atob(crop.split(',')[1]);
1316             var array = [];
1317             for(var i = 0; i < blobBin.length; i++) {
1318                 array.push(blobBin.charCodeAt(i));
1319             }
1320             var croppedFile =new Blob([new Uint8Array(array)], {type: 'image/png'});
1321             formData.append(this.paramName, croppedFile, file.name);
1322         }
1323
1324         if(typeof(file.filename) != 'undefined'){
1325             formData.append('filename', file.filename);
1326         }
1327
1328         if(typeof(file.mimetype) != 'undefined'){
1329             formData.append('mimetype', file.mimetype);
1330         }
1331
1332         if(this.fireEvent('arrange', this, formData) != false){
1333             this.xhr.send(formData);
1334         };
1335     },
1336
1337     xhrOnLoad : function(xhr)
1338     {
1339         if(this.loadMask){
1340             this.maskEl.unmask();
1341         }
1342
1343         if (xhr.readyState !== 4) {
1344             this.fireEvent('exception', this, xhr);
1345             return;
1346         }
1347
1348         var response = Roo.decode(xhr.responseText);
1349
1350         if(!response.success){
1351             this.fireEvent('exception', this, xhr);
1352             return;
1353         }
1354
1355         var response = Roo.decode(xhr.responseText);
1356
1357         this.fireEvent('upload', this, response);
1358
1359     },
1360
1361     xhrOnError : function()
1362     {
1363         if(this.loadMask){
1364             this.maskEl.unmask();
1365         }
1366
1367         Roo.log('xhr on error');
1368
1369         var response = Roo.decode(xhr.responseText);
1370
1371         Roo.log(response);
1372
1373     },
1374
1375     prepare : function(file)
1376     {
1377         if(this.loadMask){
1378             this.maskEl.mask(this.loadingText);
1379         }
1380
1381         this.file = false;
1382         this.exif = {};
1383
1384         if(typeof(file) === 'string'){
1385             this.loadCanvas(file);
1386             return;
1387         }
1388
1389         if(!file || !this.urlAPI){
1390             return;
1391         }
1392
1393         this.file = file;
1394         this.cropType = file.type;
1395
1396         var _this = this;
1397
1398         if(this.fireEvent('prepare', this, this.file) != false){
1399
1400             var reader = new FileReader();
1401
1402             reader.onload = function (e) {
1403                 if (e.target.error) {
1404                     Roo.log(e.target.error);
1405                     return;
1406                 }
1407
1408                 var buffer = e.target.result,
1409                     dataView = new DataView(buffer),
1410                     offset = 2,
1411                     maxOffset = dataView.byteLength - 4,
1412                     markerBytes,
1413                     markerLength;
1414
1415                 if (dataView.getUint16(0) === 0xffd8) {
1416                     while (offset < maxOffset) {
1417                         markerBytes = dataView.getUint16(offset);
1418
1419                         if ((markerBytes >= 0xffe0 && markerBytes <= 0xffef) || markerBytes === 0xfffe) {
1420                             markerLength = dataView.getUint16(offset + 2) + 2;
1421                             if (offset + markerLength > dataView.byteLength) {
1422                                 Roo.log('Invalid meta data: Invalid segment size.');
1423                                 break;
1424                             }
1425
1426                             if(markerBytes == 0xffe1){
1427                                 _this.parseExifData(
1428                                     dataView,
1429                                     offset,
1430                                     markerLength
1431                                 );
1432                             }
1433
1434                             offset += markerLength;
1435
1436                             continue;
1437                         }
1438
1439                         break;
1440                     }
1441
1442                 }
1443
1444                 var url = _this.urlAPI.createObjectURL(_this.file);
1445
1446                 _this.loadCanvas(url);
1447
1448                 return;
1449             }
1450
1451             reader.readAsArrayBuffer(this.file);
1452
1453         }
1454
1455     },
1456
1457     parseExifData : function(dataView, offset, length)
1458     {
1459         var tiffOffset = offset + 10,
1460             littleEndian,
1461             dirOffset;
1462
1463         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1464             // No Exif data, might be XMP data instead
1465             return;
1466         }
1467
1468         // Check for the ASCII code for "Exif" (0x45786966):
1469         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1470             // No Exif data, might be XMP data instead
1471             return;
1472         }
1473         if (tiffOffset + 8 > dataView.byteLength) {
1474             Roo.log('Invalid Exif data: Invalid segment size.');
1475             return;
1476         }
1477         // Check for the two null bytes:
1478         if (dataView.getUint16(offset + 8) !== 0x0000) {
1479             Roo.log('Invalid Exif data: Missing byte alignment offset.');
1480             return;
1481         }
1482         // Check the byte alignment:
1483         switch (dataView.getUint16(tiffOffset)) {
1484         case 0x4949:
1485             littleEndian = true;
1486             break;
1487         case 0x4D4D:
1488             littleEndian = false;
1489             break;
1490         default:
1491             Roo.log('Invalid Exif data: Invalid byte alignment marker.');
1492             return;
1493         }
1494         // Check for the TIFF tag marker (0x002A):
1495         if (dataView.getUint16(tiffOffset + 2, littleEndian) !== 0x002A) {
1496             Roo.log('Invalid Exif data: Missing TIFF marker.');
1497             return;
1498         }
1499         // Retrieve the directory offset bytes, usually 0x00000008 or 8 decimal:
1500         dirOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
1501
1502         this.parseExifTags(
1503             dataView,
1504             tiffOffset,
1505             tiffOffset + dirOffset,
1506             littleEndian
1507         );
1508     },
1509
1510     parseExifTags : function(dataView, tiffOffset, dirOffset, littleEndian)
1511     {
1512         var tagsNumber,
1513             dirEndOffset,
1514             i;
1515         if (dirOffset + 6 > dataView.byteLength) {
1516             Roo.log('Invalid Exif data: Invalid directory offset.');
1517             return;
1518         }
1519         tagsNumber = dataView.getUint16(dirOffset, littleEndian);
1520         dirEndOffset = dirOffset + 2 + 12 * tagsNumber;
1521         if (dirEndOffset + 4 > dataView.byteLength) {
1522             Roo.log('Invalid Exif data: Invalid directory size.');
1523             return;
1524         }
1525         for (i = 0; i < tagsNumber; i += 1) {
1526             this.parseExifTag(
1527                 dataView,
1528                 tiffOffset,
1529                 dirOffset + 2 + 12 * i, // tag offset
1530                 littleEndian
1531             );
1532         }
1533         // Return the offset to the next directory:
1534         return dataView.getUint32(dirEndOffset, littleEndian);
1535     },
1536
1537     parseExifTag : function (dataView, tiffOffset, offset, littleEndian)
1538     {
1539         var tag = dataView.getUint16(offset, littleEndian);
1540
1541         this.exif[tag] = this.getExifValue(
1542             dataView,
1543             tiffOffset,
1544             offset,
1545             dataView.getUint16(offset + 2, littleEndian), // tag type
1546             dataView.getUint32(offset + 4, littleEndian), // tag length
1547             littleEndian
1548         );
1549     },
1550
1551     getExifValue : function (dataView, tiffOffset, offset, type, length, littleEndian)
1552     {
1553         var tagType = Roo.dialog.UploadCropbox.exifTagTypes[type],
1554             tagSize,
1555             dataOffset,
1556             values,
1557             i,
1558             str,
1559             c;
1560
1561         if (!tagType) {
1562             Roo.log('Invalid Exif data: Invalid tag type.');
1563             return;
1564         }
1565
1566         tagSize = tagType.size * length;
1567         // Determine if the value is contained in the dataOffset bytes,
1568         // or if the value at the dataOffset is a pointer to the actual data:
1569         dataOffset = tagSize > 4 ?
1570                 tiffOffset + dataView.getUint32(offset + 8, littleEndian) : (offset + 8);
1571         if (dataOffset + tagSize > dataView.byteLength) {
1572             Roo.log('Invalid Exif data: Invalid data offset.');
1573             return;
1574         }
1575         if (length === 1) {
1576             return tagType.getValue(dataView, dataOffset, littleEndian);
1577         }
1578         values = [];
1579         for (i = 0; i < length; i += 1) {
1580             values[i] = tagType.getValue(dataView, dataOffset + i * tagType.size, littleEndian);
1581         }
1582
1583         if (tagType.ascii) {
1584             str = '';
1585             // Concatenate the chars:
1586             for (i = 0; i < values.length; i += 1) {
1587                 c = values[i];
1588                 // Ignore the terminating NULL byte(s):
1589                 if (c === '\u0000') {
1590                     break;
1591                 }
1592                 str += c;
1593             }
1594             return str;
1595         }
1596         return values;
1597     }
1598
1599 });
1600
1601 Roo.apply(Roo.dialog.UploadCropbox, {
1602     tags : {
1603         'Orientation': 0x0112
1604     },
1605
1606     Orientation: {
1607             1: 0, //'top-left',
1608 //            2: 'top-right',
1609             3: 180, //'bottom-right',
1610 //            4: 'bottom-left',
1611 //            5: 'left-top',
1612             6: 90, //'right-top',
1613 //            7: 'right-bottom',
1614             8: 270 //'left-bottom'
1615     },
1616
1617     exifTagTypes : {
1618         // byte, 8-bit unsigned int:
1619         1: {
1620             getValue: function (dataView, dataOffset) {
1621                 return dataView.getUint8(dataOffset);
1622             },
1623             size: 1
1624         },
1625         // ascii, 8-bit byte:
1626         2: {
1627             getValue: function (dataView, dataOffset) {
1628                 return String.fromCharCode(dataView.getUint8(dataOffset));
1629             },
1630             size: 1,
1631             ascii: true
1632         },
1633         // short, 16 bit int:
1634         3: {
1635             getValue: function (dataView, dataOffset, littleEndian) {
1636                 return dataView.getUint16(dataOffset, littleEndian);
1637             },
1638             size: 2
1639         },
1640         // long, 32 bit int:
1641         4: {
1642             getValue: function (dataView, dataOffset, littleEndian) {
1643                 return dataView.getUint32(dataOffset, littleEndian);
1644             },
1645             size: 4
1646         },
1647         // rational = two long values, first is numerator, second is denominator:
1648         5: {
1649             getValue: function (dataView, dataOffset, littleEndian) {
1650                 return dataView.getUint32(dataOffset, littleEndian) /
1651                     dataView.getUint32(dataOffset + 4, littleEndian);
1652             },
1653             size: 8
1654         },
1655         // slong, 32 bit signed int:
1656         9: {
1657             getValue: function (dataView, dataOffset, littleEndian) {
1658                 return dataView.getInt32(dataOffset, littleEndian);
1659             },
1660             size: 4
1661         },
1662         // srational, two slongs, first is numerator, second is denominator:
1663         10: {
1664             getValue: function (dataView, dataOffset, littleEndian) {
1665                 return dataView.getInt32(dataOffset, littleEndian) /
1666                     dataView.getInt32(dataOffset + 4, littleEndian);
1667             },
1668             size: 8
1669         }
1670     },
1671
1672     footer : {
1673         STANDARD : [
1674             {
1675                 tag : 'div',
1676                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1677                 action : 'rotate-left',
1678                 cn : [
1679                     {
1680                         tag : 'button',
1681                         cls : 'btn btn-default',
1682                         html : '<i class="fa fa-undo"></i>'
1683                     }
1684                 ]
1685             },
1686             {
1687                 tag : 'div',
1688                 cls : 'btn-group roo-upload-cropbox-picture',
1689                 action : 'picture',
1690                 cn : [
1691                     {
1692                         tag : 'button',
1693                         cls : 'btn btn-default',
1694                         html : '<i class="fa fa-picture-o"></i>'
1695                     }
1696                 ]
1697             },
1698             {
1699                 tag : 'div',
1700                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1701                 action : 'rotate-right',
1702                 cn : [
1703                     {
1704                         tag : 'button',
1705                         cls : 'btn btn-default',
1706                         html : '<i class="fa fa-repeat"></i>'
1707                     }
1708                 ]
1709             }
1710         ],
1711         DOCUMENT : [
1712             {
1713                 tag : 'div',
1714                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1715                 action : 'rotate-left',
1716                 cn : [
1717                     {
1718                         tag : 'button',
1719                         cls : 'btn btn-default',
1720                         html : '<i class="fa fa-undo"></i>'
1721                     }
1722                 ]
1723             },
1724             {
1725                 tag : 'div',
1726                 cls : 'btn-group roo-upload-cropbox-download',
1727                 action : 'download',
1728                 cn : [
1729                     {
1730                         tag : 'button',
1731                         cls : 'btn btn-default',
1732                         html : '<i class="fa fa-download"></i>'
1733                     }
1734                 ]
1735             },
1736             {
1737                 tag : 'div',
1738                 cls : 'btn-group roo-upload-cropbox-crop',
1739                 action : 'crop',
1740                 cn : [
1741                     {
1742                         tag : 'button',
1743                         cls : 'btn btn-default',
1744                         html : '<i class="fa fa-crop"></i>'
1745                     }
1746                 ]
1747             },
1748             {
1749                 tag : 'div',
1750                 cls : 'btn-group roo-upload-cropbox-trash',
1751                 action : 'trash',
1752                 cn : [
1753                     {
1754                         tag : 'button',
1755                         cls : 'btn btn-default',
1756                         html : '<i class="fa fa-trash"></i>'
1757                     }
1758                 ]
1759             },
1760             {
1761                 tag : 'div',
1762                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1763                 action : 'rotate-right',
1764                 cn : [
1765                     {
1766                         tag : 'button',
1767                         cls : 'btn btn-default',
1768                         html : '<i class="fa fa-repeat"></i>'
1769                     }
1770                 ]
1771             }
1772         ],
1773         ROTATOR : [
1774             {
1775                 tag : 'div',
1776                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1777                 action : 'rotate-left',
1778                 cn : [
1779                     {
1780                         tag : 'button',
1781                         cls : 'btn btn-default',
1782                         html : '<i class="fa fa-undo"></i>'
1783                     }
1784                 ]
1785             },
1786             {
1787                 tag : 'div',
1788                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1789                 action : 'rotate-right',
1790                 cn : [
1791                     {
1792                         tag : 'button',
1793                         cls : 'btn btn-default',
1794                         html : '<i class="fa fa-repeat"></i>'
1795                     }
1796                 ]
1797             }
1798         ]
1799     }
1800 });