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 {Number} windowWidth default 300
  17  * @cfg {Array} buttons default ['rotateLeft', 'pictureBtn', 'rotateRight']
  18  * @cfg {Boolean} isDocument (true|false) default false
  19  * @cfg {String} url action url
  20  * @cfg {String} paramName default 'imageUpload'
  21  * @cfg {String} method default POST
  22  * @cfg {Boolean} loadMask (true|false) default true
  23  * @cfg {Boolean} loadingText default 'Loading...'
  24  *
  25  * @constructor
  26  * Create a new UploadCropbox
  27  * @param {Object} config The config object
  28  */
  29
  30  Roo.dialog.UploadCropbox = function(config){
  31     Roo.dialog.UploadCropbox.superclass.constructor.call(this, config);
  32
  33     this.addEvents({
  34         /**
  35          * @event beforeselectfile
  36          * Fire before select file
  37          * @param {Roo.dialog.UploadCropbox} this
  38          */
  39         "beforeselectfile" : true,
  40         /**
  41          * @event initial
  42          * Fire after initEvent
  43          * @param {Roo.dialog.UploadCropbox} this
  44          */
  45         "initial" : true,
  46         /**
  47          * @event crop
  48          * Fire after initEvent
  49          * @param {Roo.dialog.UploadCropbox} this
  50          * @param {String} data
  51          */
  52         "crop" : true,
  53         /**
  54          * @event prepare
  55          * Fire when preparing the file data
  56          * @param {Roo.dialog.UploadCropbox} this
  57          * @param {Object} file
  58          */
  59         "prepare" : true,
  60         /**
  61          * @event exception
  62          * Fire when get exception
  63          * @param {Roo.dialog.UploadCropbox} this
  64          * @param {XMLHttpRequest} xhr
  65          */
  66         "exception" : true,
  67         /**
  68          * @event beforeloadcanvas
  69          * Fire before load the canvas
  70          * @param {Roo.dialog.UploadCropbox} this
  71          * @param {String} src
  72          */
  73         "beforeloadcanvas" : true,
  74         /**
  75          * @event trash
  76          * Fire when trash image
  77          * @param {Roo.dialog.UploadCropbox} this
  78          */
  79         "trash" : true,
  80         /**
  81          * @event download
  82          * Fire when download the image
  83          * @param {Roo.dialog.UploadCropbox} this
  84          */
  85         "download" : true,
  86         /**
  87          * @event footerbuttonclick
  88          * Fire when footerbuttonclick
  89          * @param {Roo.dialog.UploadCropbox} this
  90          * @param {String} type
  91          */
  92         "footerbuttonclick" : true,
  93         /**
  94          * @event resize
  95          * Fire when resize
  96          * @param {Roo.dialog.UploadCropbox} this
  97          */
  98         "resize" : true,
  99         /**
 100          * @event rotate
 101          * Fire when rotate the image
 102          * @param {Roo.dialog.UploadCropbox} this
 103          * @param {String} pos
 104          */
 105         "rotate" : true,
 106         /**
 107          * @event inspect
 108          * Fire when inspect the file
 109          * @param {Roo.dialog.UploadCropbox} this
 110          * @param {Object} file
 111          */
 112         "inspect" : true,
 113         /**
 114          * @event upload
 115          * Fire when xhr upload the file
 116          * @param {Roo.dialog.UploadCropbox} this
 117          * @param {Object} data
 118          */
 119         "upload" : true,
 120         /**
 121          * @event arrange
 122          * Fire when arrange the file data
 123          * @param {Roo.dialog.UploadCropbox} this
 124          * @param {Object} formData
 125          */
 126         "arrange" : true,
 127         /**
 128          * @event loadcanvas
 129          * Fire after load the canvas
 130          * @param {Roo.dialog.UploadCropbox}
 131          * @param {Object} imgEl
 132          */
 133         "loadcanvas" : true
 134     });
 135
 136     this.buttons = this.buttons || Roo.dialog.UploadCropbox.footer.STANDARD;
 137 };
 138
 139 Roo.extend(Roo.dialog.UploadCropbox, Roo.Component,  {
 140
 141     emptyText : 'Click to upload image',
 142     rotateNotify : 'Image is too small to rotate',
 143     errorTimeout : 3000,
 144     scale : 0,
 145     baseScale : 1,
 146     rotate : 0,
 147     dragable : false,
 148     pinching : false,
 149     mouseX : 0,
 150     mouseY : 0,
 151     cropData : false,
 152     minWidth : 300,
 153     minHeight : 300,
 154     outputMaxWidth : 1200,
 155     file : false,
 156     exif : {},
 157     baseRotate : 1,
 158     cropType : 'image/jpeg',
 159     buttons : false,
 160     canvasLoaded : false,
 161     isDocument : false,
 162     method : 'POST',
 163     paramName : 'imageUpload',
 164     loadMask : true,
 165     loadingText : 'Loading...',
 166     maskEl : false,
 167
 168     getAutoCreate : function()
 169     {
 170         var cfg = {
 171             tag : 'div',
 172             cls : 'roo-upload-cropbox',
 173             cn : [
 174                 {
 175                     tag : 'input',
 176                     cls : 'roo-upload-cropbox-selector',
 177                     type : 'file'
 178                 },
 179                 {
 180                     tag : 'div',
 181                     cls : 'roo-upload-cropbox-body',
 182                     style : 'cursor:pointer',
 183                     cn : [
 184                         {
 185                             tag : 'div',
 186                             cls : 'roo-upload-cropbox-preview'
 187                         },
 188                         {
 189                             tag : 'div',
 190                             cls : 'roo-upload-cropbox-thumb'
 191                         },
 192                         {
 193                             tag : 'div',
 194                             cls : 'roo-upload-cropbox-empty-notify',
 195                             html : this.emptyText
 196                         },
 197                         {
 198                             tag : 'div',
 199                             cls : 'roo-upload-cropbox-error-notify alert alert-danger',
 200                             html : this.rotateNotify
 201                         }
 202                     ]
 203                 },
 204                 {
 205                     tag : 'div',
 206                     cls : 'roo-upload-cropbox-footer',
 207                     cn : {
 208                         tag : 'div',
 209                         cls : 'btn-group btn-group-justified roo-upload-cropbox-btn-group',
 210                         cn : []
 211                     }
 212                 }
 213             ]
 214         };
 215
 216         return cfg;
 217     },
 218
 219     onRender : function(ct, position)
 220     {
 221         Roo.dialog.UploadCropbox.superclass.onRender.call(this, ct, position);
 222
 223         if(this.el){
 224             if (this.el.attr('xtype')) {
 225                 this.el.attr('xtypex', this.el.attr('xtype'));
 226                 this.el.dom.removeAttribute('xtype');
 227
 228                 this.initEvents();
 229             }
 230         }
 231         else {
 232             var cfg = Roo.apply({},  this.getAutoCreate());
 233
 234             cfg.id = this.id || Roo.id();
 235
 236             if (this.cls) {
 237                 cfg.cls = (typeof(cfg.cls) == 'undefined' ? this.cls : cfg.cls) + ' ' + this.cls;
 238             }
 239
 240             if (this.style) { // fixme needs to support more complex style data.
 241                 cfg.style = (typeof(cfg.style) == 'undefined' ? this.style : cfg.style) + '; ' + this.style;
 242             }
 243
 244             this.el = ct.createChild(cfg, position);
 245
 246             this.initEvents();
 247         }
 248
 249         if (this.buttons.length) {
 250
 251             Roo.each(this.buttons, function(bb) {
 252
 253                 var btn = this.el.select('.roo-upload-cropbox-footer div.roo-upload-cropbox-btn-group').first().createChild(bb);
 254
 255                 btn.on('click', this.onFooterButtonClick.createDelegate(this, [bb.action], true));
 256
 257             }, this);
 258         }
 259
 260         if(this.loadMask){
 261             this.maskEl = this.el;
 262         }
 263     },
 264
 265     initEvents : function()
 266     {
 267         this.urlAPI = (window.createObjectURL && window) ||
 268                                 (window.URL && URL.revokeObjectURL && URL) ||
 269                                 (window.webkitURL && webkitURL);
 270
 271         this.bodyEl = this.el.select('.roo-upload-cropbox-body', true).first();
 272         this.bodyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 273
 274         this.selectorEl = this.el.select('.roo-upload-cropbox-selector', true).first();
 275         this.selectorEl.hide();
 276
 277         this.previewEl = this.el.select('.roo-upload-cropbox-preview', true).first();
 278         this.previewEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 279
 280         this.thumbEl = this.el.select('.roo-upload-cropbox-thumb', true).first();
 281         this.thumbEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 282         this.thumbEl.hide();
 283
 284         this.notifyEl = this.el.select('.roo-upload-cropbox-empty-notify', true).first();
 285         this.notifyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 286
 287         this.errorEl = this.el.select('.roo-upload-cropbox-error-notify', true).first();
 288         this.errorEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 289         this.errorEl.hide();
 290
 291         this.footerEl = this.el.select('.roo-upload-cropbox-footer', true).first();
 292         this.footerEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 293         this.footerEl.hide();
 294
 295         this.setThumbBoxSize();
 296
 297         this.bind();
 298
 299         this.resize();
 300
 301         this.fireEvent('initial', this);
 302     },
 303
 304     bind : function()
 305     {
 306         var _this = this;
 307
 308         window.addEventListener("resize", function() { _this.resize(); } );
 309
 310         this.bodyEl.on('click', this.beforeSelectFile, this);
 311
 312         if(Roo.isTouch){
 313             this.bodyEl.on('touchstart', this.onTouchStart, this);
 314             this.bodyEl.on('touchmove', this.onTouchMove, this);
 315             this.bodyEl.on('touchend', this.onTouchEnd, this);
 316         }
 317
 318         if(!Roo.isTouch){
 319             this.bodyEl.on('mousedown', this.onMouseDown, this);
 320             this.bodyEl.on('mousemove', this.onMouseMove, this);
 321             var mousewheel = (/Firefox/i.test(navigator.userAgent))? 'DOMMouseScroll' : 'mousewheel';
 322             this.bodyEl.on(mousewheel, this.onMouseWheel, this);
 323             Roo.get(document).on('mouseup', this.onMouseUp, this);
 324         }
 325
 326         this.selectorEl.on('change', this.onFileSelected, this);
 327     },
 328
 329     reset : function()
 330     {
 331         this.scale = 0;
 332         this.baseScale = 1;
 333         this.rotate = 0;
 334         this.baseRotate = 1;
 335         this.dragable = false;
 336         this.pinching = false;
 337         this.mouseX = 0;
 338         this.mouseY = 0;
 339         this.cropData = false;
 340         this.notifyEl.dom.innerHTML = this.emptyText;
 341
 342         // this.selectorEl.dom.value = '';
 343
 344     },
 345
 346     resize : function()
 347     {
 348         if(this.fireEvent('resize', this) != false){
 349             this.setThumbBoxPosition();
 350             this.setCanvasPosition();
 351         }
 352     },
 353
 354     onFooterButtonClick : function(e, el, o, type)
 355     {
 356         switch (type) {
 357             case 'rotate-left' :
 358                 this.onRotateLeft(e);
 359                 break;
 360             case 'rotate-right' :
 361                 this.onRotateRight(e);
 362                 break;
 363             case 'picture' :
 364                 this.beforeSelectFile(e);
 365                 break;
 366             case 'trash' :
 367                 this.trash(e);
 368                 break;
 369             case 'crop' :
 370                 this.crop(e);
 371                 break;
 372             case 'download' :
 373                 this.download(e);
 374                 break;
 375             default :
 376                 break;
 377         }
 378
 379         this.fireEvent('footerbuttonclick', this, type);
 380     },
 381
 382     beforeSelectFile : function(e)
 383     {
 384         e.preventDefault();
 385
 386         if(this.fireEvent('beforeselectfile', this) != false){
 387             this.selectorEl.dom.click();
 388         }
 389     },
 390
 391     onFileSelected : function(e)
 392     {
 393         e.preventDefault();
 394
 395         if(typeof(this.selectorEl.dom.files) == 'undefined' || !this.selectorEl.dom.files.length){
 396             return;
 397         }
 398
 399         var file = this.selectorEl.dom.files[0];
 400
 401         if(this.fireEvent('inspect', this, file) != false){
 402             this.prepare(file);
 403         }
 404
 405     },
 406
 407     trash : function(e)
 408     {
 409         this.fireEvent('trash', this);
 410     },
 411
 412     download : function(e)
 413     {
 414         this.fireEvent('download', this);
 415     },
 416
 417     loadCanvas : function(src)
 418     {
 419         if(this.fireEvent('beforeloadcanvas', this, src) != false){
 420
 421             this.reset();
 422
 423             this.imageEl = document.createElement('img');
 424
 425             var _this = this;
 426
 427             this.imageEl.addEventListener("load", function(){ _this.onLoadCanvas(); });
 428
 429             this.imageEl.src = src;
 430         }
 431     },
 432
 433     onLoadCanvas : function()
 434     {
 435         this.imageEl.OriginWidth = this.imageEl.naturalWidth || this.imageEl.width;
 436         this.imageEl.OriginHeight = this.imageEl.naturalHeight || this.imageEl.height;
 437
 438         if(this.fireEvent('loadcanvas', this, this.imageEl) != false){
 439
 440             this.bodyEl.un('click', this.beforeSelectFile, this);
 441
 442             this.notifyEl.hide();
 443             this.thumbEl.show();
 444             this.footerEl.show();
 445
 446             this.baseRotateLevel();
 447
 448             if(this.isDocument){
 449                 this.setThumbBoxSize();
 450             }
 451
 452             this.setThumbBoxPosition();
 453
 454             this.baseScaleLevel();
 455
 456             this.draw();
 457
 458             this.resize();
 459
 460             this.canvasLoaded = true;
 461
 462         }
 463
 464         if(this.loadMask){
 465             this.maskEl.unmask();
 466         }
 467
 468     },
 469
 470     setCanvasPosition : function()
 471     {
 472         if(!this.canvasEl){
 473             return;
 474         }
 475
 476         var pw = Math.ceil((this.bodyEl.getWidth() - this.canvasEl.width) / 2);
 477         var ph = Math.ceil((this.bodyEl.getHeight() - this.canvasEl.height) / 2);
 478
 479         this.previewEl.setLeft(pw);
 480         this.previewEl.setTop(ph);
 481
 482     },
 483
 484     onMouseDown : function(e)
 485     {
 486         e.stopEvent();
 487
 488         this.dragable = true;
 489         this.pinching = false;
 490
 491         if(this.isDocument && (this.canvasEl.width < this.thumbEl.getWidth() || this.canvasEl.height < this.thumbEl.getHeight())){
 492             this.dragable = false;
 493             return;
 494         }
 495
 496         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 497         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 498
 499     },
 500
 501     onMouseMove : function(e)
 502     {
 503         e.stopEvent();
 504
 505         if(!this.canvasLoaded){
 506             return;
 507         }
 508
 509         if (!this.dragable){
 510             return;
 511         }
 512
 513         var minX = Math.ceil(this.thumbEl.getLeft(true));
 514         var minY = Math.ceil(this.thumbEl.getTop(true));
 515
 516         var maxX = Math.ceil(minX + this.thumbEl.getWidth() - this.canvasEl.width);
 517         var maxY = Math.ceil(minY + this.thumbEl.getHeight() - this.canvasEl.height);
 518
 519         if(minX > maxX) {
 520             var tempX = minX;
 521             minX = maxX;
 522             maxX = tempX;
 523         }
 524
 525         if(minY > maxY) {
 526             var tempY = minY;
 527             minY = maxY;
 528             maxY = tempY;
 529         }
 530
 531         var x = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 532         var y = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 533
 534         x = x - this.mouseX;
 535         y = y - this.mouseY;
 536
 537         var bgX = Math.ceil(x + this.previewEl.getLeft(true));
 538         var bgY = Math.ceil(y + this.previewEl.getTop(true));
 539
 540         bgX = (bgX < minX) ? minX : ((bgX > maxX) ? maxX : bgX);
 541         bgY = (bgY < minY) ? minY : ((bgY > maxY) ? maxY : bgY);
 542
 543         this.previewEl.setLeft(bgX);
 544         this.previewEl.setTop(bgY);
 545
 546         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 547         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 548     },
 549
 550     onMouseUp : function(e)
 551     {
 552         e.stopEvent();
 553
 554         this.dragable = false;
 555     },
 556
 557     onMouseWheel : function(e)
 558     {
 559         e.stopEvent();
 560
 561         this.startScale = this.scale;
 562         this.scale = (e.getWheelDelta() > 0) ? (this.scale + 1) : (this.scale - 1);
 563
 564         if(!this.zoomable()){
 565             this.scale = this.startScale;
 566             return;
 567         }
 568
 569
 570         this.draw();
 571
 572         return;
 573     },
 574
 575     zoomable : function()
 576     {
 577         var minScale = this.thumbEl.getWidth() / this.minWidth;
 578
 579         if(this.minWidth < this.minHeight){
 580             minScale = this.thumbEl.getHeight() / this.minHeight;
 581         }
 582
 583         var width = Math.ceil(this.imageEl.OriginWidth * this.getScaleLevel() / minScale);
 584         var height = Math.ceil(this.imageEl.OriginHeight * this.getScaleLevel() / minScale);
 585
 586
 587         var maxWidth = this.imageEl.OriginWidth;
 588         var maxHeight = this.imageEl.OriginHeight;
 589
 590         if(
 591                 this.isDocument &&
 592                 (this.rotate == 0 || this.rotate == 180) &&
 593                 (
 594                     width > this.imageEl.OriginWidth ||
 595                     height > this.imageEl.OriginHeight ||
 596                     (width < this.minWidth && height < this.minHeight)
 597                 )
 598         ){
 599             return false;
 600         }
 601
 602         if(
 603                 this.isDocument &&
 604                 (this.rotate == 90 || this.rotate == 270) &&
 605                 (
 606                     width > this.imageEl.OriginWidth ||
 607                     height > this.imageEl.OriginHeight ||
 608                     (width < this.minHeight && height < this.minWidth)
 609                 )
 610         ){
 611             return false;
 612         }
 613
 614         if(
 615                 !this.isDocument &&
 616                 (this.rotate == 0 || this.rotate == 180) &&
 617                 (
 618                     (this.imageEl.OriginWidth >= this.minWidth) && width < this.minWidth ||
 619                     (this.imageEl.OriginHeight >= this.minHeight) && height < this.minHeight ||
 620                     width > maxWidth ||
 621                     height > maxHeight
 622                 )
 623         ){
 624             return false;
 625         }
 626
 627         if(
 628                 !this.isDocument &&
 629                 (this.rotate == 90 || this.rotate == 270) &&
 630                 (
 631                     width < this.minHeight ||
 632                     width > this.imageEl.OriginWidth ||
 633                     height < this.minWidth ||
 634                     height > this.imageEl.OriginHeight
 635                 )
 636         ){
 637             return false;
 638         }
 639
 640         return true;
 641
 642     },
 643
 644     onRotateLeft : function(e)
 645     {
 646         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 647
 648             var minScale = this.thumbEl.getWidth() / this.minWidth;
 649
 650             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 651             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 652
 653             this.startScale = this.scale;
 654
 655             while (this.getScaleLevel() < minScale){
 656
 657                 this.scale = this.scale + 1;
 658
 659                 if(!this.zoomable()){
 660                     break;
 661                 }
 662
 663                 if(
 664                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 665                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 666                 ){
 667                     continue;
 668                 }
 669
 670                 this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 671
 672                 this.draw();
 673
 674                 return;
 675             }
 676
 677             this.scale = this.startScale;
 678
 679             this.onRotateFail();
 680
 681             return false;
 682         }
 683
 684         this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 685
 686         if(this.isDocument){
 687             this.setThumbBoxSize();
 688             this.setThumbBoxPosition();
 689             this.setCanvasPosition();
 690         }
 691
 692         this.draw();
 693
 694         this.fireEvent('rotate', this, 'left');
 695
 696     },
 697
 698     onRotateRight : function(e)
 699     {
 700         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 701
 702             var minScale = this.thumbEl.getWidth() / this.minWidth;
 703
 704             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 705             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 706
 707             this.startScale = this.scale;
 708
 709             while (this.getScaleLevel() < minScale){
 710
 711                 this.scale = this.scale + 1;
 712
 713                 if(!this.zoomable()){
 714                     break;
 715                 }
 716
 717                 if(
 718                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 719                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 720                 ){
 721                     continue;
 722                 }
 723
 724                 this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 725
 726                 this.draw();
 727
 728                 return;
 729             }
 730
 731             this.scale = this.startScale;
 732
 733             this.onRotateFail();
 734
 735             return false;
 736         }
 737
 738         this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 739
 740         if(this.isDocument){
 741             this.setThumbBoxSize();
 742             this.setThumbBoxPosition();
 743             this.setCanvasPosition();
 744         }
 745
 746         this.draw();
 747
 748         this.fireEvent('rotate', this, 'right');
 749     },
 750
 751     onRotateFail : function()
 752     {
 753         this.errorEl.show(true);
 754
 755         var _this = this;
 756
 757         (function() { _this.errorEl.hide(true); }).defer(this.errorTimeout);
 758     },
 759
 760     draw : function()
 761     {
 762         this.previewEl.dom.innerHTML = '';
 763
 764         var canvasEl = document.createElement("canvas");
 765
 766         var contextEl = canvasEl.getContext("2d");
 767
 768         canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 769         canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 770         var center = this.imageEl.OriginWidth / 2;
 771
 772         if(this.imageEl.OriginWidth < this.imageEl.OriginHeight){
 773             canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 774             canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 775             center = this.imageEl.OriginHeight / 2;
 776         }
 777
 778         contextEl.scale(this.getScaleLevel(), this.getScaleLevel());
 779
 780         contextEl.translate(center, center);
 781         contextEl.rotate(this.rotate * Math.PI / 180);
 782
 783         contextEl.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 784
 785         this.canvasEl = document.createElement("canvas");
 786
 787         this.contextEl = this.canvasEl.getContext("2d");
 788
 789         switch (this.rotate) {
 790             case 0 :
 791
 792                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 793                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 794
 795                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 796
 797                 break;
 798             case 90 :
 799
 800                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 801                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 802
 803                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 804                     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);
 805                     break;
 806                 }
 807
 808                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 809
 810                 break;
 811             case 180 :
 812
 813                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 814                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 815
 816                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 817                     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);
 818                     break;
 819                 }
 820
 821                 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);
 822
 823                 break;
 824             case 270 :
 825
 826                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 827                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 828
 829                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 830                     this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 831                     break;
 832                 }
 833
 834                 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);
 835
 836                 break;
 837             default :
 838                 break;
 839         }
 840
 841         this.previewEl.appendChild(this.canvasEl);
 842
 843         this.setCanvasPosition();
 844     },
 845
 846     crop : function()
 847     {
 848         if(!this.canvasLoaded){
 849             return;
 850         }
 851
 852         var imageCanvas = document.createElement("canvas");
 853
 854         var imageContext = imageCanvas.getContext("2d");
 855
 856         imageCanvas.width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 857         imageCanvas.height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 858
 859         var center = imageCanvas.width / 2;
 860
 861         imageContext.translate(center, center);
 862
 863         imageContext.rotate(this.rotate * Math.PI / 180);
 864
 865         imageContext.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 866
 867         var canvas = document.createElement("canvas");
 868
 869         var context = canvas.getContext("2d");
 870
 871         canvas.width = this.thumbEl.getWidth() / this.getScaleLevel();
 872
 873         canvas.height = this.thumbEl.getHeight() / this.getScaleLevel();
 874
 875         switch (this.rotate) {
 876             case 0 :
 877
 878                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 879                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 880
 881                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 882                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 883
 884                 var sx = this.thumbEl.getLeft(true) - this.previewEl.getLeft(true);
 885                 var sy = this.thumbEl.getTop(true) - this.previewEl.getTop(true);
 886
 887                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 888                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 889
 890                 if(canvas.width > this.outputMaxWidth) {
 891                     var scale = this.outputMaxWidth / canvas.width;
 892                     canvas.width = canvas.width * scale;
 893                     canvas.height = canvas.height * scale;
 894                     context.scale(scale, scale);
 895                 }
 896
 897                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 898
 899                 break;
 900             case 90 :
 901
 902                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 903                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 904
 905                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 906                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 907
 908                 var targetWidth = this.minWidth - 2 * x;
 909                 var targetHeight = this.minHeight - 2 * y;
 910
 911                 var scale = 1;
 912
 913                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 914                     scale = targetWidth / width;
 915                 }
 916
 917                 if(x > 0 && y == 0){
 918                     scale = targetHeight / height;
 919                 }
 920
 921                 if(x > 0 && y > 0){
 922                     scale = targetWidth / width;
 923
 924                     if(width < height){
 925                         scale = targetHeight / height;
 926                     }
 927                 }
 928
 929                 context.scale(scale, scale);
 930
 931                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 932                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 933
 934                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 935                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 936
 937                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 938
 939                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 940
 941                 break;
 942             case 180 :
 943
 944                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 945                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 946
 947                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 948                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 949
 950                 var targetWidth = this.minWidth - 2 * x;
 951                 var targetHeight = this.minHeight - 2 * y;
 952
 953                 var scale = 1;
 954
 955                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 956                     scale = targetWidth / width;
 957                 }
 958
 959                 if(x > 0 && y == 0){
 960                     scale = targetHeight / height;
 961                 }
 962
 963                 if(x > 0 && y > 0){
 964                     scale = targetWidth / width;
 965
 966                     if(width < height){
 967                         scale = targetHeight / height;
 968                     }
 969                 }
 970
 971                 context.scale(scale, scale);
 972
 973                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 974                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 975
 976                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 977                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 978
 979                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
 980                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 981
 982                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 983
 984                 break;
 985             case 270 :
 986
 987                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 988                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 989
 990                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 991                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 992
 993                 var targetWidth = this.minWidth - 2 * x;
 994                 var targetHeight = this.minHeight - 2 * y;
 995
 996                 var scale = 1;
 997
 998                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 999                     scale = targetWidth / width;
1000                 }
1001
1002                 if(x > 0 && y == 0){
1003                     scale = targetHeight / height;
1004                 }
1005
1006                 if(x > 0 && y > 0){
1007                     scale = targetWidth / width;
1008
1009                     if(width < height){
1010                         scale = targetHeight / height;
1011                     }
1012                 }
1013
1014                 context.scale(scale, scale);
1015                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1016                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1017
1018                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1019                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1020
1021                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1022
1023                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1024
1025                 break;
1026             default :
1027                 break;
1028         }
1029
1030         this.cropData = canvas.toDataURL(this.cropType);
1031
1032         if(this.fireEvent('crop', this, this.cropData) !== false){
1033             this.process(this.file, this.cropData);
1034         }
1035
1036         return;
1037
1038     },
1039
1040     setThumbBoxSize : function()
1041     {
1042         var width, height;
1043
1044         if(this.isDocument && typeof(this.imageEl) != 'undefined'){
1045             width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.max(this.minWidth, this.minHeight) : Math.min(this.minWidth, this.minHeight);
1046             height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.min(this.minWidth, this.minHeight) : Math.max(this.minWidth, this.minHeight);
1047
1048             this.minWidth = width;
1049             this.minHeight = height;
1050
1051             if(this.rotate == 90 || this.rotate == 270){
1052                 this.minWidth = height;
1053                 this.minHeight = width;
1054             }
1055         }
1056
1057         height = 500;
1058         width = Math.ceil(this.minWidth * height / this.minHeight);
1059
1060         if(this.minWidth > this.minHeight){
1061             width = 500;
1062             height = Math.ceil(this.minHeight * width / this.minWidth);
1063         }
1064
1065         this.thumbEl.setStyle({
1066             width : width + 'px',
1067             height : height + 'px'
1068         });
1069
1070         return;
1071
1072     },
1073
1074     setThumbBoxPosition : function()
1075     {
1076         var x = Math.ceil((this.bodyEl.getWidth() - this.thumbEl.getWidth()) / 2 );
1077         var y = Math.ceil((this.bodyEl.getHeight() - this.thumbEl.getHeight()) / 2);
1078
1079         this.thumbEl.setLeft(x);
1080         this.thumbEl.setTop(y);
1081
1082     },
1083
1084     baseRotateLevel : function()
1085     {
1086         this.baseRotate = 1;
1087
1088         if(
1089                 typeof(this.exif) != 'undefined' &&
1090                 typeof(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != 'undefined' &&
1091                 [1, 3, 6, 8].indexOf(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != -1
1092         ){
1093             this.baseRotate = this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']];
1094         }
1095
1096         this.rotate = Roo.dialog.UploadCropbox['Orientation'][this.baseRotate];
1097
1098     },
1099
1100     baseScaleLevel : function()
1101     {
1102         var width, height;
1103
1104         if(this.isDocument){
1105
1106             if(this.baseRotate == 6 || this.baseRotate == 8){
1107
1108                 height = this.thumbEl.getHeight();
1109                 this.baseScale = height / this.imageEl.OriginWidth;
1110
1111                 if(this.imageEl.OriginHeight * this.baseScale > this.thumbEl.getWidth()){
1112                     width = this.thumbEl.getWidth();
1113                     this.baseScale = width / this.imageEl.OriginHeight;
1114                 }
1115
1116                 return;
1117             }
1118
1119             height = this.thumbEl.getHeight();
1120             this.baseScale = height / this.imageEl.OriginHeight;
1121
1122             if(this.imageEl.OriginWidth * this.baseScale > this.thumbEl.getWidth()){
1123                 width = this.thumbEl.getWidth();
1124                 this.baseScale = width / this.imageEl.OriginWidth;
1125             }
1126
1127             return;
1128         }
1129
1130         if(this.baseRotate == 6 || this.baseRotate == 8){
1131
1132             width = this.thumbEl.getHeight();
1133             this.baseScale = width / this.imageEl.OriginHeight;
1134
1135             if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getWidth()){
1136                 height = this.thumbEl.getWidth();
1137                 this.baseScale = height / this.imageEl.OriginHeight;
1138             }
1139
1140             if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1141                 height = this.thumbEl.getWidth();
1142                 this.baseScale = height / this.imageEl.OriginHeight;
1143
1144                 if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getHeight()){
1145                     width = this.thumbEl.getHeight();
1146                     this.baseScale = width / this.imageEl.OriginWidth;
1147                 }
1148             }
1149
1150             return;
1151         }
1152
1153         width = this.thumbEl.getWidth();
1154         this.baseScale = width / this.imageEl.OriginWidth;
1155
1156         if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getHeight()){
1157             height = this.thumbEl.getHeight();
1158             this.baseScale = height / this.imageEl.OriginHeight;
1159         }
1160
1161         if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1162
1163             height = this.thumbEl.getHeight();
1164             this.baseScale = height / this.imageEl.OriginHeight;
1165
1166             if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getWidth()){
1167                 width = this.thumbEl.getWidth();
1168                 this.baseScale = width / this.imageEl.OriginWidth;
1169             }
1170
1171         }
1172
1173         if(this.imageEl.OriginWidth < this.minWidth || this.imageEl.OriginHeight < this.minHeight) {
1174             this.baseScale = width / this.minWidth;
1175         }
1176
1177         return;
1178     },
1179
1180     getScaleLevel : function()
1181     {
1182         return this.baseScale * Math.pow(1.02, this.scale);
1183     },
1184
1185     onTouchStart : function(e)
1186     {
1187         if(!this.canvasLoaded){
1188             this.beforeSelectFile(e);
1189             return;
1190         }
1191
1192         var touches = e.browserEvent.touches;
1193
1194         if(!touches){
1195             return;
1196         }
1197
1198         if(touches.length == 1){
1199             this.onMouseDown(e);
1200             return;
1201         }
1202
1203         if(touches.length != 2){
1204             return;
1205         }
1206
1207         var coords = [];
1208
1209         for(var i = 0, finger; finger = touches[i]; i++){
1210             coords.push(finger.pageX, finger.pageY);
1211         }
1212
1213         var x = Math.pow(coords[0] - coords[2], 2);
1214         var y = Math.pow(coords[1] - coords[3], 2);
1215
1216         this.startDistance = Math.sqrt(x + y);
1217
1218         this.startScale = this.scale;
1219
1220         this.pinching = true;
1221         this.dragable = false;
1222
1223     },
1224
1225     onTouchMove : function(e)
1226     {
1227         if(!this.pinching && !this.dragable){
1228             return;
1229         }
1230
1231         var touches = e.browserEvent.touches;
1232
1233         if(!touches){
1234             return;
1235         }
1236
1237         if(this.dragable){
1238             this.onMouseMove(e);
1239             return;
1240         }
1241
1242         var coords = [];
1243
1244         for(var i = 0, finger; finger = touches[i]; i++){
1245             coords.push(finger.pageX, finger.pageY);
1246         }
1247
1248         var x = Math.pow(coords[0] - coords[2], 2);
1249         var y = Math.pow(coords[1] - coords[3], 2);
1250
1251         this.endDistance = Math.sqrt(x + y);
1252
1253         this.scale = this.startScale + Math.floor(Math.log(this.endDistance / this.startDistance) / Math.log(1.1));
1254
1255         if(!this.zoomable()){
1256             this.scale = this.startScale;
1257             return;
1258         }
1259
1260         this.draw();
1261
1262     },
1263
1264     onTouchEnd : function(e)
1265     {
1266         this.pinching = false;
1267         this.dragable = false;
1268
1269     },
1270
1271     process : function(file, crop)
1272     {
1273         if(this.loadMask){
1274             this.maskEl.mask(this.loadingText);
1275         }
1276
1277         this.xhr = new XMLHttpRequest();
1278
1279         file.xhr = this.xhr;
1280
1281         this.xhr.open(this.method, this.url, true);
1282
1283         var headers = {
1284             "Accept": "application/json",
1285             "Cache-Control": "no-cache",
1286             "X-Requested-With": "XMLHttpRequest"
1287         };
1288
1289         for (var headerName in headers) {
1290             var headerValue = headers[headerName];
1291             if (headerValue) {
1292                 this.xhr.setRequestHeader(headerName, headerValue);
1293             }
1294         }
1295
1296         var _this = this;
1297
1298         this.xhr.onload = function()
1299         {
1300             _this.xhrOnLoad(_this.xhr);
1301         }
1302
1303         this.xhr.onerror = function()
1304         {
1305             _this.xhrOnError(_this.xhr);
1306         }
1307
1308         var formData = new FormData();
1309
1310         formData.append('returnHTML', 'NO');
1311
1312         if(crop){
1313             formData.append('crop', crop);
1314             var blobBin = atob(crop.split(',')[1]);
1315             var array = [];
1316             for(var i = 0; i < blobBin.length; i++) {
1317                 array.push(blobBin.charCodeAt(i));
1318             }
1319             var croppedFile =new Blob([new Uint8Array(array)], {type: this.cropType});
1320             formData.append(this.paramName, croppedFile, file.name);
1321         }
1322
1323         if(typeof(file.filename) != 'undefined'){
1324             formData.append('filename', file.filename);
1325         }
1326
1327         if(typeof(file.mimetype) != 'undefined'){
1328             formData.append('mimetype', file.mimetype);
1329         }
1330
1331         if(this.fireEvent('arrange', this, formData) != false){
1332             this.xhr.send(formData);
1333         };
1334     },
1335
1336     xhrOnLoad : function(xhr)
1337     {
1338         if(this.loadMask){
1339             this.maskEl.unmask();
1340         }
1341
1342         if (xhr.readyState !== 4) {
1343             this.fireEvent('exception', this, xhr);
1344             return;
1345         }
1346
1347         var response = Roo.decode(xhr.responseText);
1348
1349         if(!response.success){
1350             this.fireEvent('exception', this, xhr);
1351             return;
1352         }
1353
1354         var response = Roo.decode(xhr.responseText);
1355
1356         this.fireEvent('upload', this, response);
1357
1358     },
1359
1360     xhrOnError : function()
1361     {
1362         if(this.loadMask){
1363             this.maskEl.unmask();
1364         }
1365
1366         Roo.log('xhr on error');
1367
1368         var response = Roo.decode(xhr.responseText);
1369
1370         Roo.log(response);
1371
1372     },
1373
1374     prepare : function(file)
1375     {
1376         if(this.loadMask){
1377             this.maskEl.mask(this.loadingText);
1378         }
1379
1380         this.file = false;
1381         this.exif = {};
1382
1383         if(typeof(file) === 'string'){
1384             this.loadCanvas(file);
1385             return;
1386         }
1387
1388         if(!file || !this.urlAPI){
1389             return;
1390         }
1391
1392         this.file = file;
1393         if(typeof(file.type) != 'undefined' && file.type.length != 0) {
1394             this.cropType = file.type;
1395         }
1396
1397         var _this = this;
1398
1399         if(this.fireEvent('prepare', this, this.file) != false){
1400
1401             var reader = new FileReader();
1402
1403             reader.onload = function (e) {
1404                 if (e.target.error) {
1405                     Roo.log(e.target.error);
1406                     return;
1407                 }
1408
1409                 var buffer = e.target.result,
1410                     dataView = new DataView(buffer),
1411                     offset = 2,
1412                     maxOffset = dataView.byteLength - 4,
1413                     markerBytes,
1414                     markerLength;
1415
1416                 if (dataView.getUint16(0) === 0xffd8) {
1417                     while (offset < maxOffset) {
1418                         markerBytes = dataView.getUint16(offset);
1419
1420                         if ((markerBytes >= 0xffe0 && markerBytes <= 0xffef) || markerBytes === 0xfffe) {
1421                             markerLength = dataView.getUint16(offset + 2) + 2;
1422                             if (offset + markerLength > dataView.byteLength) {
1423                                 Roo.log('Invalid meta data: Invalid segment size.');
1424                                 break;
1425                             }
1426
1427                             if(markerBytes == 0xffe1){
1428                                 _this.parseExifData(
1429                                     dataView,
1430                                     offset,
1431                                     markerLength
1432                                 );
1433                             }
1434
1435                             offset += markerLength;
1436
1437                             continue;
1438                         }
1439
1440                         break;
1441                     }
1442
1443                 }
1444
1445                 var url = _this.urlAPI.createObjectURL(_this.file);
1446
1447                 _this.loadCanvas(url);
1448
1449                 return;
1450             }
1451
1452             reader.readAsArrayBuffer(this.file);
1453
1454         }
1455
1456     },
1457
1458     parseExifData : function(dataView, offset, length)
1459     {
1460         var tiffOffset = offset + 10,
1461             littleEndian,
1462             dirOffset;
1463
1464         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1465             // No Exif data, might be XMP data instead
1466             return;
1467         }
1468
1469         // Check for the ASCII code for "Exif" (0x45786966):
1470         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1471             // No Exif data, might be XMP data instead
1472             return;
1473         }
1474         if (tiffOffset + 8 > dataView.byteLength) {
1475             Roo.log('Invalid Exif data: Invalid segment size.');
1476             return;
1477         }
1478         // Check for the two null bytes:
1479         if (dataView.getUint16(offset + 8) !== 0x0000) {
1480             Roo.log('Invalid Exif data: Missing byte alignment offset.');
1481             return;
1482         }
1483         // Check the byte alignment:
1484         switch (dataView.getUint16(tiffOffset)) {
1485         case 0x4949:
1486             littleEndian = true;
1487             break;
1488         case 0x4D4D:
1489             littleEndian = false;
1490             break;
1491         default:
1492             Roo.log('Invalid Exif data: Invalid byte alignment marker.');
1493             return;
1494         }
1495         // Check for the TIFF tag marker (0x002A):
1496         if (dataView.getUint16(tiffOffset + 2, littleEndian) !== 0x002A) {
1497             Roo.log('Invalid Exif data: Missing TIFF marker.');
1498             return;
1499         }
1500         // Retrieve the directory offset bytes, usually 0x00000008 or 8 decimal:
1501         dirOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
1502
1503         this.parseExifTags(
1504             dataView,
1505             tiffOffset,
1506             tiffOffset + dirOffset,
1507             littleEndian
1508         );
1509     },
1510
1511     parseExifTags : function(dataView, tiffOffset, dirOffset, littleEndian)
1512     {
1513         var tagsNumber,
1514             dirEndOffset,
1515             i;
1516         if (dirOffset + 6 > dataView.byteLength) {
1517             Roo.log('Invalid Exif data: Invalid directory offset.');
1518             return;
1519         }
1520         tagsNumber = dataView.getUint16(dirOffset, littleEndian);
1521         dirEndOffset = dirOffset + 2 + 12 * tagsNumber;
1522         if (dirEndOffset + 4 > dataView.byteLength) {
1523             Roo.log('Invalid Exif data: Invalid directory size.');
1524             return;
1525         }
1526         for (i = 0; i < tagsNumber; i += 1) {
1527             this.parseExifTag(
1528                 dataView,
1529                 tiffOffset,
1530                 dirOffset + 2 + 12 * i, // tag offset
1531                 littleEndian
1532             );
1533         }
1534         // Return the offset to the next directory:
1535         return dataView.getUint32(dirEndOffset, littleEndian);
1536     },
1537
1538     parseExifTag : function (dataView, tiffOffset, offset, littleEndian)
1539     {
1540         var tag = dataView.getUint16(offset, littleEndian);
1541
1542         this.exif[tag] = this.getExifValue(
1543             dataView,
1544             tiffOffset,
1545             offset,
1546             dataView.getUint16(offset + 2, littleEndian), // tag type
1547             dataView.getUint32(offset + 4, littleEndian), // tag length
1548             littleEndian
1549         );
1550     },
1551
1552     getExifValue : function (dataView, tiffOffset, offset, type, length, littleEndian)
1553     {
1554         var tagType = Roo.dialog.UploadCropbox.exifTagTypes[type],
1555             tagSize,
1556             dataOffset,
1557             values,
1558             i,
1559             str,
1560             c;
1561
1562         if (!tagType) {
1563             Roo.log('Invalid Exif data: Invalid tag type.');
1564             return;
1565         }
1566
1567         tagSize = tagType.size * length;
1568         // Determine if the value is contained in the dataOffset bytes,
1569         // or if the value at the dataOffset is a pointer to the actual data:
1570         dataOffset = tagSize > 4 ?
1571                 tiffOffset + dataView.getUint32(offset + 8, littleEndian) : (offset + 8);
1572         if (dataOffset + tagSize > dataView.byteLength) {
1573             Roo.log('Invalid Exif data: Invalid data offset.');
1574             return;
1575         }
1576         if (length === 1) {
1577             return tagType.getValue(dataView, dataOffset, littleEndian);
1578         }
1579         values = [];
1580         for (i = 0; i < length; i += 1) {
1581             values[i] = tagType.getValue(dataView, dataOffset + i * tagType.size, littleEndian);
1582         }
1583
1584         if (tagType.ascii) {
1585             str = '';
1586             // Concatenate the chars:
1587             for (i = 0; i < values.length; i += 1) {
1588                 c = values[i];
1589                 // Ignore the terminating NULL byte(s):
1590                 if (c === '\u0000') {
1591                     break;
1592                 }
1593                 str += c;
1594             }
1595             return str;
1596         }
1597         return values;
1598     }
1599
1600 });
1601
1602 Roo.apply(Roo.dialog.UploadCropbox, {
1603     tags : {
1604         'Orientation': 0x0112
1605     },
1606
1607     Orientation: {
1608             1: 0, //'top-left',
1609 //            2: 'top-right',
1610             3: 180, //'bottom-right',
1611 //            4: 'bottom-left',
1612 //            5: 'left-top',
1613             6: 90, //'right-top',
1614 //            7: 'right-bottom',
1615             8: 270 //'left-bottom'
1616     },
1617
1618     exifTagTypes : {
1619         // byte, 8-bit unsigned int:
1620         1: {
1621             getValue: function (dataView, dataOffset) {
1622                 return dataView.getUint8(dataOffset);
1623             },
1624             size: 1
1625         },
1626         // ascii, 8-bit byte:
1627         2: {
1628             getValue: function (dataView, dataOffset) {
1629                 return String.fromCharCode(dataView.getUint8(dataOffset));
1630             },
1631             size: 1,
1632             ascii: true
1633         },
1634         // short, 16 bit int:
1635         3: {
1636             getValue: function (dataView, dataOffset, littleEndian) {
1637                 return dataView.getUint16(dataOffset, littleEndian);
1638             },
1639             size: 2
1640         },
1641         // long, 32 bit int:
1642         4: {
1643             getValue: function (dataView, dataOffset, littleEndian) {
1644                 return dataView.getUint32(dataOffset, littleEndian);
1645             },
1646             size: 4
1647         },
1648         // rational = two long values, first is numerator, second is denominator:
1649         5: {
1650             getValue: function (dataView, dataOffset, littleEndian) {
1651                 return dataView.getUint32(dataOffset, littleEndian) /
1652                     dataView.getUint32(dataOffset + 4, littleEndian);
1653             },
1654             size: 8
1655         },
1656         // slong, 32 bit signed int:
1657         9: {
1658             getValue: function (dataView, dataOffset, littleEndian) {
1659                 return dataView.getInt32(dataOffset, littleEndian);
1660             },
1661             size: 4
1662         },
1663         // srational, two slongs, first is numerator, second is denominator:
1664         10: {
1665             getValue: function (dataView, dataOffset, littleEndian) {
1666                 return dataView.getInt32(dataOffset, littleEndian) /
1667                     dataView.getInt32(dataOffset + 4, littleEndian);
1668             },
1669             size: 8
1670         }
1671     },
1672
1673     footer : {
1674         STANDARD : [
1675             {
1676                 tag : 'div',
1677                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1678                 action : 'rotate-left',
1679                 cn : [
1680                     {
1681                         tag : 'button',
1682                         cls : 'btn btn-default',
1683                         html : '<i class="fa fa-undo"></i>'
1684                     }
1685                 ]
1686             },
1687             {
1688                 tag : 'div',
1689                 cls : 'btn-group roo-upload-cropbox-picture',
1690                 action : 'picture',
1691                 cn : [
1692                     {
1693                         tag : 'button',
1694                         cls : 'btn btn-default',
1695                         html : '<i class="fa fa-picture-o"></i>'
1696                     }
1697                 ]
1698             },
1699             {
1700                 tag : 'div',
1701                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1702                 action : 'rotate-right',
1703                 cn : [
1704                     {
1705                         tag : 'button',
1706                         cls : 'btn btn-default',
1707                         html : '<i class="fa fa-repeat"></i>'
1708                     }
1709                 ]
1710             }
1711         ],
1712         DOCUMENT : [
1713             {
1714                 tag : 'div',
1715                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1716                 action : 'rotate-left',
1717                 cn : [
1718                     {
1719                         tag : 'button',
1720                         cls : 'btn btn-default',
1721                         html : '<i class="fa fa-undo"></i>'
1722                     }
1723                 ]
1724             },
1725             {
1726                 tag : 'div',
1727                 cls : 'btn-group roo-upload-cropbox-download',
1728                 action : 'download',
1729                 cn : [
1730                     {
1731                         tag : 'button',
1732                         cls : 'btn btn-default',
1733                         html : '<i class="fa fa-download"></i>'
1734                     }
1735                 ]
1736             },
1737             {
1738                 tag : 'div',
1739                 cls : 'btn-group roo-upload-cropbox-crop',
1740                 action : 'crop',
1741                 cn : [
1742                     {
1743                         tag : 'button',
1744                         cls : 'btn btn-default',
1745                         html : '<i class="fa fa-crop"></i>'
1746                     }
1747                 ]
1748             },
1749             {
1750                 tag : 'div',
1751                 cls : 'btn-group roo-upload-cropbox-trash',
1752                 action : 'trash',
1753                 cn : [
1754                     {
1755                         tag : 'button',
1756                         cls : 'btn btn-default',
1757                         html : '<i class="fa fa-trash"></i>'
1758                     }
1759                 ]
1760             },
1761             {
1762                 tag : 'div',
1763                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1764                 action : 'rotate-right',
1765                 cn : [
1766                     {
1767                         tag : 'button',
1768                         cls : 'btn btn-default',
1769                         html : '<i class="fa fa-repeat"></i>'
1770                     }
1771                 ]
1772             }
1773         ],
1774         ROTATOR : [
1775             {
1776                 tag : 'div',
1777                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1778                 action : 'rotate-left',
1779                 cn : [
1780                     {
1781                         tag : 'button',
1782                         cls : 'btn btn-default',
1783                         html : '<i class="fa fa-undo"></i>'
1784                     }
1785                 ]
1786             },
1787             {
1788                 tag : 'div',
1789                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1790                 action : 'rotate-right',
1791                 cn : [
1792                     {
1793                         tag : 'button',
1794                         cls : 'btn btn-default',
1795                         html : '<i class="fa fa-repeat"></i>'
1796                     }
1797                 ]
1798             }
1799         ]
1800     }
1801 });