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     outputMaxWidth : 1200,
 154     file : false,
 155     exif : {},
 156     baseRotate : 1,
 157     cropType : 'image/jpeg',
 158     buttons : false,
 159     canvasLoaded : false,
 160     isDocument : false,
 161     method : 'POST',
 162     paramName : 'imageUpload',
 163     loadMask : true,
 164     loadingText : 'Loading...',
 165     maskEl : false,
 166
 167     getAutoCreate : function()
 168     {
 169         var cfg = {
 170             tag : 'div',
 171             cls : 'roo-upload-cropbox',
 172             cn : [
 173                 {
 174                     tag : 'input',
 175                     cls : 'roo-upload-cropbox-selector',
 176                     type : 'file'
 177                 },
 178                 {
 179                     tag : 'div',
 180                     cls : 'roo-upload-cropbox-body',
 181                     style : 'cursor:pointer',
 182                     cn : [
 183                         {
 184                             tag : 'div',
 185                             cls : 'roo-upload-cropbox-preview'
 186                         },
 187                         {
 188                             tag : 'div',
 189                             cls : 'roo-upload-cropbox-thumb'
 190                         },
 191                         {
 192                             tag : 'div',
 193                             cls : 'roo-upload-cropbox-empty-notify',
 194                             html : this.emptyText
 195                         },
 196                         {
 197                             tag : 'div',
 198                             cls : 'roo-upload-cropbox-error-notify alert alert-danger',
 199                             html : this.rotateNotify
 200                         }
 201                     ]
 202                 },
 203                 {
 204                     tag : 'div',
 205                     cls : 'roo-upload-cropbox-footer',
 206                     cn : {
 207                         tag : 'div',
 208                         cls : 'btn-group btn-group-justified roo-upload-cropbox-btn-group',
 209                         cn : []
 210                     }
 211                 }
 212             ]
 213         };
 214
 215         return cfg;
 216     },
 217
 218     onRender : function(ct, position)
 219     {
 220         Roo.dialog.UploadCropbox.superclass.onRender.call(this, ct, position);
 221
 222         if(this.el){
 223             if (this.el.attr('xtype')) {
 224                 this.el.attr('xtypex', this.el.attr('xtype'));
 225                 this.el.dom.removeAttribute('xtype');
 226
 227                 this.initEvents();
 228             }
 229         }
 230         else {
 231             var cfg = Roo.apply({},  this.getAutoCreate());
 232
 233             cfg.id = this.id || Roo.id();
 234
 235             if (this.cls) {
 236                 cfg.cls = (typeof(cfg.cls) == 'undefined' ? this.cls : cfg.cls) + ' ' + this.cls;
 237             }
 238
 239             if (this.style) { // fixme needs to support more complex style data.
 240                 cfg.style = (typeof(cfg.style) == 'undefined' ? this.style : cfg.style) + '; ' + this.style;
 241             }
 242
 243             this.el = ct.createChild(cfg, position);
 244
 245             this.initEvents();
 246         }
 247
 248         if (this.buttons.length) {
 249
 250             Roo.each(this.buttons, function(bb) {
 251
 252                 var btn = this.el.select('.roo-upload-cropbox-footer div.roo-upload-cropbox-btn-group').first().createChild(bb);
 253
 254                 btn.on('click', this.onFooterButtonClick.createDelegate(this, [bb.action], true));
 255
 256             }, this);
 257         }
 258
 259         if(this.loadMask){
 260             this.maskEl = this.el;
 261         }
 262     },
 263
 264     initEvents : function()
 265     {
 266         this.urlAPI = (window.createObjectURL && window) ||
 267                                 (window.URL && URL.revokeObjectURL && URL) ||
 268                                 (window.webkitURL && webkitURL);
 269
 270         this.bodyEl = this.el.select('.roo-upload-cropbox-body', true).first();
 271         this.bodyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 272
 273         this.selectorEl = this.el.select('.roo-upload-cropbox-selector', true).first();
 274         this.selectorEl.hide();
 275
 276         this.previewEl = this.el.select('.roo-upload-cropbox-preview', true).first();
 277         this.previewEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 278
 279         this.thumbEl = this.el.select('.roo-upload-cropbox-thumb', true).first();
 280         this.thumbEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 281         this.thumbEl.hide();
 282
 283         this.notifyEl = this.el.select('.roo-upload-cropbox-empty-notify', true).first();
 284         this.notifyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 285
 286         this.errorEl = this.el.select('.roo-upload-cropbox-error-notify', true).first();
 287         this.errorEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 288         this.errorEl.hide();
 289
 290         this.footerEl = this.el.select('.roo-upload-cropbox-footer', true).first();
 291         this.footerEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 292         this.footerEl.hide();
 293
 294         this.setThumbBoxSize();
 295
 296         this.bind();
 297
 298         this.resize();
 299
 300         this.fireEvent('initial', this);
 301     },
 302
 303     bind : function()
 304     {
 305         var _this = this;
 306
 307         window.addEventListener("resize", function() { _this.resize(); } );
 308
 309         this.bodyEl.on('click', this.beforeSelectFile, this);
 310
 311         if(Roo.isTouch){
 312             this.bodyEl.on('touchstart', this.onTouchStart, this);
 313             this.bodyEl.on('touchmove', this.onTouchMove, this);
 314             this.bodyEl.on('touchend', this.onTouchEnd, this);
 315         }
 316
 317         if(!Roo.isTouch){
 318             this.bodyEl.on('mousedown', this.onMouseDown, this);
 319             this.bodyEl.on('mousemove', this.onMouseMove, this);
 320             var mousewheel = (/Firefox/i.test(navigator.userAgent))? 'DOMMouseScroll' : 'mousewheel';
 321             this.bodyEl.on(mousewheel, this.onMouseWheel, this);
 322             Roo.get(document).on('mouseup', this.onMouseUp, this);
 323         }
 324
 325         this.selectorEl.on('change', this.onFileSelected, this);
 326     },
 327
 328     reset : function()
 329     {
 330         this.scale = 0;
 331         this.baseScale = 1;
 332         this.rotate = 0;
 333         this.baseRotate = 1;
 334         this.dragable = false;
 335         this.pinching = false;
 336         this.mouseX = 0;
 337         this.mouseY = 0;
 338         this.cropData = false;
 339         this.notifyEl.dom.innerHTML = this.emptyText;
 340
 341         // this.selectorEl.dom.value = '';
 342
 343     },
 344
 345     resize : function()
 346     {
 347         if(this.fireEvent('resize', this) != false){
 348             this.setThumbBoxPosition();
 349             this.setCanvasPosition();
 350         }
 351     },
 352
 353     onFooterButtonClick : function(e, el, o, type)
 354     {
 355         switch (type) {
 356             case 'rotate-left' :
 357                 this.onRotateLeft(e);
 358                 break;
 359             case 'rotate-right' :
 360                 this.onRotateRight(e);
 361                 break;
 362             case 'picture' :
 363                 this.beforeSelectFile(e);
 364                 break;
 365             case 'trash' :
 366                 this.trash(e);
 367                 break;
 368             case 'crop' :
 369                 this.crop(e);
 370                 break;
 371             case 'download' :
 372                 this.download(e);
 373                 break;
 374             default :
 375                 break;
 376         }
 377
 378         this.fireEvent('footerbuttonclick', this, type);
 379     },
 380
 381     beforeSelectFile : function(e)
 382     {
 383         e.preventDefault();
 384
 385         if(this.fireEvent('beforeselectfile', this) != false){
 386             this.selectorEl.dom.click();
 387         }
 388     },
 389
 390     onFileSelected : function(e)
 391     {
 392         e.preventDefault();
 393
 394         if(typeof(this.selectorEl.dom.files) == 'undefined' || !this.selectorEl.dom.files.length){
 395             return;
 396         }
 397
 398         var file = this.selectorEl.dom.files[0];
 399
 400         if(this.fireEvent('inspect', this, file) != false){
 401             this.prepare(file);
 402         }
 403
 404     },
 405
 406     trash : function(e)
 407     {
 408         this.fireEvent('trash', this);
 409     },
 410
 411     download : function(e)
 412     {
 413         this.fireEvent('download', this);
 414     },
 415
 416     loadCanvas : function(src)
 417     {
 418         if(this.fireEvent('beforeloadcanvas', this, src) != false){
 419
 420             this.reset();
 421
 422             this.imageEl = document.createElement('img');
 423
 424             var _this = this;
 425
 426             this.imageEl.addEventListener("load", function(){ _this.onLoadCanvas(); });
 427
 428             this.imageEl.src = src;
 429         }
 430     },
 431
 432     onLoadCanvas : function()
 433     {
 434         this.imageEl.OriginWidth = this.imageEl.naturalWidth || this.imageEl.width;
 435         this.imageEl.OriginHeight = this.imageEl.naturalHeight || this.imageEl.height;
 436
 437         if(this.fireEvent('loadcanvas', this, this.imageEl) != false){
 438
 439             this.bodyEl.un('click', this.beforeSelectFile, this);
 440
 441             this.notifyEl.hide();
 442             this.thumbEl.show();
 443             this.footerEl.show();
 444
 445             this.baseRotateLevel();
 446
 447             if(this.isDocument){
 448                 this.setThumbBoxSize();
 449             }
 450
 451             this.setThumbBoxPosition();
 452
 453             this.baseScaleLevel();
 454
 455             this.draw();
 456
 457             this.resize();
 458
 459             this.canvasLoaded = true;
 460
 461         }
 462
 463         if(this.loadMask){
 464             this.maskEl.unmask();
 465         }
 466
 467     },
 468
 469     setCanvasPosition : function()
 470     {
 471         if(!this.canvasEl){
 472             return;
 473         }
 474
 475         var pw = Math.ceil((this.bodyEl.getWidth() - this.canvasEl.width) / 2);
 476         var ph = Math.ceil((this.bodyEl.getHeight() - this.canvasEl.height) / 2);
 477
 478         this.previewEl.setLeft(pw);
 479         this.previewEl.setTop(ph);
 480
 481     },
 482
 483     onMouseDown : function(e)
 484     {
 485         e.stopEvent();
 486
 487         this.dragable = true;
 488         this.pinching = false;
 489
 490         if(this.isDocument && (this.canvasEl.width < this.thumbEl.getWidth() || this.canvasEl.height < this.thumbEl.getHeight())){
 491             this.dragable = false;
 492             return;
 493         }
 494
 495         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 496         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 497
 498     },
 499
 500     onMouseMove : function(e)
 501     {
 502         e.stopEvent();
 503
 504         if(!this.canvasLoaded){
 505             return;
 506         }
 507
 508         if (!this.dragable){
 509             return;
 510         }
 511
 512         var minX = Math.ceil(this.thumbEl.getLeft(true));
 513         var minY = Math.ceil(this.thumbEl.getTop(true));
 514
 515         var maxX = Math.ceil(minX + this.thumbEl.getWidth() - this.canvasEl.width);
 516         var maxY = Math.ceil(minY + this.thumbEl.getHeight() - this.canvasEl.height);
 517
 518         if(minX > maxX) {
 519             var tempX = minX;
 520             minX = maxX;
 521             maxX = tempX;
 522         }
 523
 524         if(minY > maxY) {
 525             var tempY = minY;
 526             minY = maxY;
 527             maxY = tempY;
 528         }
 529
 530         var x = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 531         var y = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 532
 533         x = x - this.mouseX;
 534         y = y - this.mouseY;
 535
 536         var bgX = Math.ceil(x + this.previewEl.getLeft(true));
 537         var bgY = Math.ceil(y + this.previewEl.getTop(true));
 538
 539         bgX = (bgX < minX) ? minX : ((bgX > maxX) ? maxX : bgX);
 540         bgY = (bgY < minY) ? minY : ((bgY > maxY) ? maxY : bgY);
 541
 542         this.previewEl.setLeft(bgX);
 543         this.previewEl.setTop(bgY);
 544
 545         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 546         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 547     },
 548
 549     onMouseUp : function(e)
 550     {
 551         e.stopEvent();
 552
 553         this.dragable = false;
 554     },
 555
 556     onMouseWheel : function(e)
 557     {
 558         e.stopEvent();
 559
 560         this.startScale = this.scale;
 561         this.scale = (e.getWheelDelta() == 1) ? (this.scale + 1) : (this.scale - 1);
 562
 563         if(!this.zoomable()){
 564             this.scale = this.startScale;
 565             return;
 566         }
 567
 568
 569         this.draw();
 570
 571         return;
 572     },
 573
 574     zoomable : function()
 575     {
 576         var minScale = this.thumbEl.getWidth() / this.minWidth;
 577
 578         if(this.minWidth < this.minHeight){
 579             minScale = this.thumbEl.getHeight() / this.minHeight;
 580         }
 581
 582         var width = Math.ceil(this.imageEl.OriginWidth * this.getScaleLevel() / minScale);
 583         var height = Math.ceil(this.imageEl.OriginHeight * this.getScaleLevel() / minScale);
 584
 585
 586         var maxWidth = this.imageEl.OriginWidth;
 587         var maxHeight = this.imageEl.OriginHeight;
 588
 589         if(
 590                 this.isDocument &&
 591                 (this.rotate == 0 || this.rotate == 180) &&
 592                 (
 593                     width > this.imageEl.OriginWidth ||
 594                     height > this.imageEl.OriginHeight ||
 595                     (width < this.minWidth && height < this.minHeight)
 596                 )
 597         ){
 598             return false;
 599         }
 600
 601         if(
 602                 this.isDocument &&
 603                 (this.rotate == 90 || this.rotate == 270) &&
 604                 (
 605                     width > this.imageEl.OriginWidth ||
 606                     height > this.imageEl.OriginHeight ||
 607                     (width < this.minHeight && height < this.minWidth)
 608                 )
 609         ){
 610             return false;
 611         }
 612
 613         if(
 614                 !this.isDocument &&
 615                 (this.rotate == 0 || this.rotate == 180) &&
 616                 (
 617                     (this.imageEl.OriginWidth >= this.minWidth) && width < this.minWidth ||
 618                     (this.imageEl.OriginHeight >= this.minHeight) && height < this.minHeight ||
 619                     width > maxWidth ||
 620                     height > maxHeight
 621                 )
 622         ){
 623             return false;
 624         }
 625
 626         if(
 627                 !this.isDocument &&
 628                 (this.rotate == 90 || this.rotate == 270) &&
 629                 (
 630                     width < this.minHeight ||
 631                     width > this.imageEl.OriginWidth ||
 632                     height < this.minWidth ||
 633                     height > this.imageEl.OriginHeight
 634                 )
 635         ){
 636             return false;
 637         }
 638
 639         return true;
 640
 641     },
 642
 643     onRotateLeft : function(e)
 644     {
 645         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 646
 647             var minScale = this.thumbEl.getWidth() / this.minWidth;
 648
 649             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 650             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 651
 652             this.startScale = this.scale;
 653
 654             while (this.getScaleLevel() < minScale){
 655
 656                 this.scale = this.scale + 1;
 657
 658                 if(!this.zoomable()){
 659                     break;
 660                 }
 661
 662                 if(
 663                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 664                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 665                 ){
 666                     continue;
 667                 }
 668
 669                 this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 670
 671                 this.draw();
 672
 673                 return;
 674             }
 675
 676             this.scale = this.startScale;
 677
 678             this.onRotateFail();
 679
 680             return false;
 681         }
 682
 683         this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 684
 685         if(this.isDocument){
 686             this.setThumbBoxSize();
 687             this.setThumbBoxPosition();
 688             this.setCanvasPosition();
 689         }
 690
 691         this.draw();
 692
 693         this.fireEvent('rotate', this, 'left');
 694
 695     },
 696
 697     onRotateRight : function(e)
 698     {
 699         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 700
 701             var minScale = this.thumbEl.getWidth() / this.minWidth;
 702
 703             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 704             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 705
 706             this.startScale = this.scale;
 707
 708             while (this.getScaleLevel() < minScale){
 709
 710                 this.scale = this.scale + 1;
 711
 712                 if(!this.zoomable()){
 713                     break;
 714                 }
 715
 716                 if(
 717                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 718                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 719                 ){
 720                     continue;
 721                 }
 722
 723                 this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 724
 725                 this.draw();
 726
 727                 return;
 728             }
 729
 730             this.scale = this.startScale;
 731
 732             this.onRotateFail();
 733
 734             return false;
 735         }
 736
 737         this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 738
 739         if(this.isDocument){
 740             this.setThumbBoxSize();
 741             this.setThumbBoxPosition();
 742             this.setCanvasPosition();
 743         }
 744
 745         this.draw();
 746
 747         this.fireEvent('rotate', this, 'right');
 748     },
 749
 750     onRotateFail : function()
 751     {
 752         this.errorEl.show(true);
 753
 754         var _this = this;
 755
 756         (function() { _this.errorEl.hide(true); }).defer(this.errorTimeout);
 757     },
 758
 759     draw : function()
 760     {
 761         this.previewEl.dom.innerHTML = '';
 762
 763         var canvasEl = document.createElement("canvas");
 764
 765         var contextEl = canvasEl.getContext("2d");
 766
 767         canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 768         canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 769         var center = this.imageEl.OriginWidth / 2;
 770
 771         if(this.imageEl.OriginWidth < this.imageEl.OriginHeight){
 772             canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 773             canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 774             center = this.imageEl.OriginHeight / 2;
 775         }
 776
 777         contextEl.scale(this.getScaleLevel(), this.getScaleLevel());
 778
 779         contextEl.translate(center, center);
 780         contextEl.rotate(this.rotate * Math.PI / 180);
 781
 782         contextEl.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 783
 784         this.canvasEl = document.createElement("canvas");
 785
 786         this.contextEl = this.canvasEl.getContext("2d");
 787
 788         switch (this.rotate) {
 789             case 0 :
 790
 791                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 792                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 793
 794                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 795
 796                 break;
 797             case 90 :
 798
 799                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 800                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 801
 802                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 803                     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);
 804                     break;
 805                 }
 806
 807                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 808
 809                 break;
 810             case 180 :
 811
 812                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 813                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 814
 815                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 816                     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);
 817                     break;
 818                 }
 819
 820                 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);
 821
 822                 break;
 823             case 270 :
 824
 825                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 826                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 827
 828                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 829                     this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 830                     break;
 831                 }
 832
 833                 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);
 834
 835                 break;
 836             default :
 837                 break;
 838         }
 839
 840         this.previewEl.appendChild(this.canvasEl);
 841
 842         this.setCanvasPosition();
 843     },
 844
 845     crop : function()
 846     {
 847         if(!this.canvasLoaded){
 848             return;
 849         }
 850
 851         var imageCanvas = document.createElement("canvas");
 852
 853         var imageContext = imageCanvas.getContext("2d");
 854
 855         imageCanvas.width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 856         imageCanvas.height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 857
 858         var center = imageCanvas.width / 2;
 859
 860         imageContext.translate(center, center);
 861
 862         imageContext.rotate(this.rotate * Math.PI / 180);
 863
 864         imageContext.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 865
 866         var canvas = document.createElement("canvas");
 867
 868         var context = canvas.getContext("2d");
 869
 870         canvas.width = this.thumbEl.getWidth() / this.getScaleLevel();
 871
 872         canvas.height = this.thumbEl.getHeight() / this.getScaleLevel();
 873
 874         switch (this.rotate) {
 875             case 0 :
 876
 877                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 878                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 879
 880                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 881                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 882
 883                 var sx = this.thumbEl.getLeft(true) - this.previewEl.getLeft(true);
 884                 var sy = this.thumbEl.getTop(true) - this.previewEl.getTop(true);
 885
 886                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 887                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 888
 889                 if(canvas.width > this.outputMaxWidth) {
 890                     var scale = this.outputMaxWidth / canvas.width;
 891                     canvas.width = canvas.width * scale;
 892                     canvas.height = canvas.height * scale;
 893                     context.scale(scale, scale);
 894                 }
 895
 896                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 897
 898                 break;
 899             case 90 :
 900
 901                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 902                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 903
 904                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 905                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 906
 907                 var targetWidth = this.minWidth - 2 * x;
 908                 var targetHeight = this.minHeight - 2 * y;
 909
 910                 var scale = 1;
 911
 912                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 913                     scale = targetWidth / width;
 914                 }
 915
 916                 if(x > 0 && y == 0){
 917                     scale = targetHeight / height;
 918                 }
 919
 920                 if(x > 0 && y > 0){
 921                     scale = targetWidth / width;
 922
 923                     if(width < height){
 924                         scale = targetHeight / height;
 925                     }
 926                 }
 927
 928                 context.scale(scale, scale);
 929
 930                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 931                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 932
 933                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 934                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 935
 936                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 937
 938                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 939
 940                 break;
 941             case 180 :
 942
 943                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 944                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 945
 946                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 947                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 948
 949                 var targetWidth = this.minWidth - 2 * x;
 950                 var targetHeight = this.minHeight - 2 * y;
 951
 952                 var scale = 1;
 953
 954                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 955                     scale = targetWidth / width;
 956                 }
 957
 958                 if(x > 0 && y == 0){
 959                     scale = targetHeight / height;
 960                 }
 961
 962                 if(x > 0 && y > 0){
 963                     scale = targetWidth / width;
 964
 965                     if(width < height){
 966                         scale = targetHeight / height;
 967                     }
 968                 }
 969
 970                 context.scale(scale, scale);
 971
 972                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 973                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 974
 975                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 976                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 977
 978                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
 979                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 980
 981                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 982
 983                 break;
 984             case 270 :
 985
 986                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 987                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 988
 989                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 990                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 991
 992                 var targetWidth = this.minWidth - 2 * x;
 993                 var targetHeight = this.minHeight - 2 * y;
 994
 995                 var scale = 1;
 996
 997                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 998                     scale = targetWidth / width;
 999                 }
1000
1001                 if(x > 0 && y == 0){
1002                     scale = targetHeight / height;
1003                 }
1004
1005                 if(x > 0 && y > 0){
1006                     scale = targetWidth / width;
1007
1008                     if(width < height){
1009                         scale = targetHeight / height;
1010                     }
1011                 }
1012
1013                 context.scale(scale, scale);
1014                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1015                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1016
1017                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1018                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1019
1020                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1021
1022                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1023
1024                 break;
1025             default :
1026                 break;
1027         }
1028
1029         this.cropData = canvas.toDataURL(this.cropType);
1030
1031         if(this.fireEvent('crop', this, this.cropData) !== false){
1032             this.process(this.file, this.cropData);
1033         }
1034
1035         return;
1036
1037     },
1038
1039     setThumbBoxSize : function()
1040     {
1041         var width, height;
1042
1043         if(this.isDocument && typeof(this.imageEl) != 'undefined'){
1044             width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.max(this.minWidth, this.minHeight) : Math.min(this.minWidth, this.minHeight);
1045             height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.min(this.minWidth, this.minHeight) : Math.max(this.minWidth, this.minHeight);
1046
1047             this.minWidth = width;
1048             this.minHeight = height;
1049
1050             if(this.rotate == 90 || this.rotate == 270){
1051                 this.minWidth = height;
1052                 this.minHeight = width;
1053             }
1054         }
1055
1056         height = 500;
1057         width = Math.ceil(this.minWidth * height / this.minHeight);
1058
1059         if(this.minWidth > this.minHeight){
1060             width = 500;
1061             height = Math.ceil(this.minHeight * width / this.minWidth);
1062         }
1063
1064         this.thumbEl.setStyle({
1065             width : width + 'px',
1066             height : height + 'px'
1067         });
1068
1069         return;
1070
1071     },
1072
1073     setThumbBoxPosition : function()
1074     {
1075         var x = Math.ceil((this.bodyEl.getWidth() - this.thumbEl.getWidth()) / 2 );
1076         var y = Math.ceil((this.bodyEl.getHeight() - this.thumbEl.getHeight()) / 2);
1077
1078         this.thumbEl.setLeft(x);
1079         this.thumbEl.setTop(y);
1080
1081     },
1082
1083     baseRotateLevel : function()
1084     {
1085         this.baseRotate = 1;
1086
1087         if(
1088                 typeof(this.exif) != 'undefined' &&
1089                 typeof(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != 'undefined' &&
1090                 [1, 3, 6, 8].indexOf(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != -1
1091         ){
1092             this.baseRotate = this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']];
1093         }
1094
1095         this.rotate = Roo.dialog.UploadCropbox['Orientation'][this.baseRotate];
1096
1097     },
1098
1099     baseScaleLevel : function()
1100     {
1101         var width, height;
1102
1103         if(this.isDocument){
1104
1105             if(this.baseRotate == 6 || this.baseRotate == 8){
1106
1107                 height = this.thumbEl.getHeight();
1108                 this.baseScale = height / this.imageEl.OriginWidth;
1109
1110                 if(this.imageEl.OriginHeight * this.baseScale > this.thumbEl.getWidth()){
1111                     width = this.thumbEl.getWidth();
1112                     this.baseScale = width / this.imageEl.OriginHeight;
1113                 }
1114
1115                 return;
1116             }
1117
1118             height = this.thumbEl.getHeight();
1119             this.baseScale = height / this.imageEl.OriginHeight;
1120
1121             if(this.imageEl.OriginWidth * this.baseScale > this.thumbEl.getWidth()){
1122                 width = this.thumbEl.getWidth();
1123                 this.baseScale = width / this.imageEl.OriginWidth;
1124             }
1125
1126             return;
1127         }
1128
1129         if(this.baseRotate == 6 || this.baseRotate == 8){
1130
1131             width = this.thumbEl.getHeight();
1132             this.baseScale = width / this.imageEl.OriginHeight;
1133
1134             if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getWidth()){
1135                 height = this.thumbEl.getWidth();
1136                 this.baseScale = height / this.imageEl.OriginHeight;
1137             }
1138
1139             if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1140                 height = this.thumbEl.getWidth();
1141                 this.baseScale = height / this.imageEl.OriginHeight;
1142
1143                 if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getHeight()){
1144                     width = this.thumbEl.getHeight();
1145                     this.baseScale = width / this.imageEl.OriginWidth;
1146                 }
1147             }
1148
1149             return;
1150         }
1151
1152         width = this.thumbEl.getWidth();
1153         this.baseScale = width / this.imageEl.OriginWidth;
1154
1155         if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getHeight()){
1156             height = this.thumbEl.getHeight();
1157             this.baseScale = height / this.imageEl.OriginHeight;
1158         }
1159
1160         if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1161
1162             height = this.thumbEl.getHeight();
1163             this.baseScale = height / this.imageEl.OriginHeight;
1164
1165             if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getWidth()){
1166                 width = this.thumbEl.getWidth();
1167                 this.baseScale = width / this.imageEl.OriginWidth;
1168             }
1169
1170         }
1171
1172         if(this.imageEl.OriginWidth < this.minWidth || this.imageEl.OriginHeight < this.minHeight) {
1173             this.baseScale = width / this.minWidth;
1174         }
1175
1176         return;
1177     },
1178
1179     getScaleLevel : function()
1180     {
1181         return this.baseScale * Math.pow(1.02, this.scale);
1182     },
1183
1184     onTouchStart : function(e)
1185     {
1186         if(!this.canvasLoaded){
1187             this.beforeSelectFile(e);
1188             return;
1189         }
1190
1191         var touches = e.browserEvent.touches;
1192
1193         if(!touches){
1194             return;
1195         }
1196
1197         if(touches.length == 1){
1198             this.onMouseDown(e);
1199             return;
1200         }
1201
1202         if(touches.length != 2){
1203             return;
1204         }
1205
1206         var coords = [];
1207
1208         for(var i = 0, finger; finger = touches[i]; i++){
1209             coords.push(finger.pageX, finger.pageY);
1210         }
1211
1212         var x = Math.pow(coords[0] - coords[2], 2);
1213         var y = Math.pow(coords[1] - coords[3], 2);
1214
1215         this.startDistance = Math.sqrt(x + y);
1216
1217         this.startScale = this.scale;
1218
1219         this.pinching = true;
1220         this.dragable = false;
1221
1222     },
1223
1224     onTouchMove : function(e)
1225     {
1226         if(!this.pinching && !this.dragable){
1227             return;
1228         }
1229
1230         var touches = e.browserEvent.touches;
1231
1232         if(!touches){
1233             return;
1234         }
1235
1236         if(this.dragable){
1237             this.onMouseMove(e);
1238             return;
1239         }
1240
1241         var coords = [];
1242
1243         for(var i = 0, finger; finger = touches[i]; i++){
1244             coords.push(finger.pageX, finger.pageY);
1245         }
1246
1247         var x = Math.pow(coords[0] - coords[2], 2);
1248         var y = Math.pow(coords[1] - coords[3], 2);
1249
1250         this.endDistance = Math.sqrt(x + y);
1251
1252         this.scale = this.startScale + Math.floor(Math.log(this.endDistance / this.startDistance) / Math.log(1.1));
1253
1254         if(!this.zoomable()){
1255             this.scale = this.startScale;
1256             return;
1257         }
1258
1259         this.draw();
1260
1261     },
1262
1263     onTouchEnd : function(e)
1264     {
1265         this.pinching = false;
1266         this.dragable = false;
1267
1268     },
1269
1270     process : function(file, crop)
1271     {
1272         if(this.loadMask){
1273             this.maskEl.mask(this.loadingText);
1274         }
1275
1276         this.xhr = new XMLHttpRequest();
1277
1278         file.xhr = this.xhr;
1279
1280         this.xhr.open(this.method, this.url, true);
1281
1282         var headers = {
1283             "Accept": "application/json",
1284             "Cache-Control": "no-cache",
1285             "X-Requested-With": "XMLHttpRequest"
1286         };
1287
1288         for (var headerName in headers) {
1289             var headerValue = headers[headerName];
1290             if (headerValue) {
1291                 this.xhr.setRequestHeader(headerName, headerValue);
1292             }
1293         }
1294
1295         var _this = this;
1296
1297         this.xhr.onload = function()
1298         {
1299             _this.xhrOnLoad(_this.xhr);
1300         }
1301
1302         this.xhr.onerror = function()
1303         {
1304             _this.xhrOnError(_this.xhr);
1305         }
1306
1307         var formData = new FormData();
1308
1309         formData.append('returnHTML', 'NO');
1310
1311         if(crop){
1312             formData.append('crop', crop);
1313             var blobBin = atob(crop.split(',')[1]);
1314             var array = [];
1315             for(var i = 0; i < blobBin.length; i++) {
1316                 array.push(blobBin.charCodeAt(i));
1317             }
1318             var croppedFile =new Blob([new Uint8Array(array)], {type: this.cropType});
1319             formData.append(this.paramName, croppedFile, file.name);
1320         }
1321
1322         if(typeof(file.filename) != 'undefined'){
1323             formData.append('filename', file.filename);
1324         }
1325
1326         if(typeof(file.mimetype) != 'undefined'){
1327             formData.append('mimetype', file.mimetype);
1328         }
1329
1330         if(this.fireEvent('arrange', this, formData) != false){
1331             this.xhr.send(formData);
1332         };
1333     },
1334
1335     xhrOnLoad : function(xhr)
1336     {
1337         if(this.loadMask){
1338             this.maskEl.unmask();
1339         }
1340
1341         if (xhr.readyState !== 4) {
1342             this.fireEvent('exception', this, xhr);
1343             return;
1344         }
1345
1346         var response = Roo.decode(xhr.responseText);
1347
1348         if(!response.success){
1349             this.fireEvent('exception', this, xhr);
1350             return;
1351         }
1352
1353         var response = Roo.decode(xhr.responseText);
1354
1355         this.fireEvent('upload', this, response);
1356
1357     },
1358
1359     xhrOnError : function()
1360     {
1361         if(this.loadMask){
1362             this.maskEl.unmask();
1363         }
1364
1365         Roo.log('xhr on error');
1366
1367         var response = Roo.decode(xhr.responseText);
1368
1369         Roo.log(response);
1370
1371     },
1372
1373     prepare : function(file)
1374     {
1375         if(this.loadMask){
1376             this.maskEl.mask(this.loadingText);
1377         }
1378
1379         this.file = false;
1380         this.exif = {};
1381
1382         if(typeof(file) === 'string'){
1383             this.loadCanvas(file);
1384             return;
1385         }
1386
1387         if(!file || !this.urlAPI){
1388             return;
1389         }
1390
1391         this.file = file;
1392         if(typeof(file.type) != 'undefined' && file.type.length != 0) {
1393             this.cropType = file.type;
1394         }
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 });