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} windowSize 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     windowSize : 300,
 156     file : false,
 157     exif : {},
 158     baseRotate : 1,
 159     cropType : 'image/jpeg',
 160     buttons : false,
 161     canvasLoaded : false,
 162     isDocument : false,
 163     method : 'POST',
 164     paramName : 'imageUpload',
 165     loadMask : true,
 166     loadingText : 'Loading...',
 167     maskEl : false,
 168
 169     getAutoCreate : function()
 170     {
 171         var cfg = {
 172             tag : 'div',
 173             cls : 'roo-upload-cropbox',
 174             cn : [
 175                 {
 176                     tag : 'input',
 177                     cls : 'roo-upload-cropbox-selector',
 178                     type : 'file'
 179                 },
 180                 {
 181                     tag : 'div',
 182                     cls : 'roo-upload-cropbox-body',
 183                     style : 'cursor:pointer',
 184                     cn : [
 185                         {
 186                             tag : 'div',
 187                             cls : 'roo-upload-cropbox-preview'
 188                         },
 189                         {
 190                             tag : 'div',
 191                             cls : 'roo-upload-cropbox-thumb'
 192                         },
 193                         {
 194                             tag : 'div',
 195                             cls : 'roo-upload-cropbox-empty-notify',
 196                             html : this.emptyText
 197                         },
 198                         {
 199                             tag : 'div',
 200                             cls : 'roo-upload-cropbox-error-notify alert alert-danger',
 201                             html : this.rotateNotify
 202                         }
 203                     ]
 204                 },
 205                 {
 206                     tag : 'div',
 207                     cls : 'roo-upload-cropbox-footer',
 208                     cn : {
 209                         tag : 'div',
 210                         cls : 'btn-group btn-group-justified roo-upload-cropbox-btn-group',
 211                         cn : []
 212                     }
 213                 }
 214             ]
 215         };
 216
 217         return cfg;
 218     },
 219
 220     onRender : function(ct, position)
 221     {
 222         Roo.dialog.UploadCropbox.superclass.onRender.call(this, ct, position);
 223
 224         if(this.el){
 225             if (this.el.attr('xtype')) {
 226                 this.el.attr('xtypex', this.el.attr('xtype'));
 227                 this.el.dom.removeAttribute('xtype');
 228
 229                 this.initEvents();
 230             }
 231         }
 232         else {
 233             var cfg = Roo.apply({},  this.getAutoCreate());
 234
 235             cfg.id = this.id || Roo.id();
 236
 237             if (this.cls) {
 238                 cfg.cls = (typeof(cfg.cls) == 'undefined' ? this.cls : cfg.cls) + ' ' + this.cls;
 239             }
 240
 241             if (this.style) { // fixme needs to support more complex style data.
 242                 cfg.style = (typeof(cfg.style) == 'undefined' ? this.style : cfg.style) + '; ' + this.style;
 243             }
 244
 245             this.el = ct.createChild(cfg, position);
 246
 247             this.initEvents();
 248         }
 249
 250         if (this.buttons.length) {
 251
 252             Roo.each(this.buttons, function(bb) {
 253
 254                 var btn = this.el.select('.roo-upload-cropbox-footer div.roo-upload-cropbox-btn-group').first().createChild(bb);
 255
 256                 btn.on('click', this.onFooterButtonClick.createDelegate(this, [bb.action], true));
 257
 258             }, this);
 259         }
 260
 261         if(this.loadMask){
 262             this.maskEl = this.el;
 263         }
 264     },
 265
 266     initEvents : function()
 267     {
 268         this.urlAPI = (window.createObjectURL && window) ||
 269                                 (window.URL && URL.revokeObjectURL && URL) ||
 270                                 (window.webkitURL && webkitURL);
 271
 272         this.bodyEl = this.el.select('.roo-upload-cropbox-body', true).first();
 273         this.bodyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 274
 275         this.selectorEl = this.el.select('.roo-upload-cropbox-selector', true).first();
 276         this.selectorEl.hide();
 277
 278         this.previewEl = this.el.select('.roo-upload-cropbox-preview', true).first();
 279         this.previewEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 280
 281         this.thumbEl = this.el.select('.roo-upload-cropbox-thumb', true).first();
 282         this.thumbEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 283         this.thumbEl.hide();
 284
 285         this.notifyEl = this.el.select('.roo-upload-cropbox-empty-notify', true).first();
 286         this.notifyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 287
 288         this.errorEl = this.el.select('.roo-upload-cropbox-error-notify', true).first();
 289         this.errorEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 290         this.errorEl.hide();
 291
 292         this.footerEl = this.el.select('.roo-upload-cropbox-footer', true).first();
 293         this.footerEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 294         this.footerEl.hide();
 295
 296         this.setThumbBoxSize();
 297
 298         this.bind();
 299
 300         this.resize();
 301
 302         this.fireEvent('initial', this);
 303     },
 304
 305     bind : function()
 306     {
 307         var _this = this;
 308
 309         window.addEventListener("resize", function() { _this.resize(); } );
 310
 311         this.bodyEl.on('click', this.beforeSelectFile, this);
 312
 313         if(Roo.isTouch){
 314             this.bodyEl.on('touchstart', this.onTouchStart, this);
 315             this.bodyEl.on('touchmove', this.onTouchMove, this);
 316             this.bodyEl.on('touchend', this.onTouchEnd, this);
 317         }
 318
 319         if(!Roo.isTouch){
 320             this.bodyEl.on('mousedown', this.onMouseDown, this);
 321             this.bodyEl.on('mousemove', this.onMouseMove, this);
 322             var mousewheel = (/Firefox/i.test(navigator.userAgent))? 'DOMMouseScroll' : 'mousewheel';
 323             this.bodyEl.on(mousewheel, this.onMouseWheel, this);
 324             Roo.get(document).on('mouseup', this.onMouseUp, this);
 325         }
 326
 327         this.selectorEl.on('change', this.onFileSelected, this);
 328     },
 329
 330     reset : function()
 331     {
 332         this.scale = 0;
 333         this.baseScale = 1;
 334         this.rotate = 0;
 335         this.baseRotate = 1;
 336         this.dragable = false;
 337         this.pinching = false;
 338         this.mouseX = 0;
 339         this.mouseY = 0;
 340         this.cropData = false;
 341         this.notifyEl.dom.innerHTML = this.emptyText;
 342
 343         // this.selectorEl.dom.value = '';
 344
 345     },
 346
 347     resize : function()
 348     {
 349         if(this.fireEvent('resize', this) != false){
 350             this.setThumbBoxPosition();
 351             this.setCanvasPosition();
 352         }
 353     },
 354
 355     onFooterButtonClick : function(e, el, o, type)
 356     {
 357         switch (type) {
 358             case 'rotate-left' :
 359                 this.onRotateLeft(e);
 360                 break;
 361             case 'rotate-right' :
 362                 this.onRotateRight(e);
 363                 break;
 364             case 'picture' :
 365                 this.beforeSelectFile(e);
 366                 break;
 367             case 'trash' :
 368                 this.trash(e);
 369                 break;
 370             case 'crop' :
 371                 this.crop(e);
 372                 break;
 373             case 'download' :
 374                 this.download(e);
 375                 break;
 376             default :
 377                 break;
 378         }
 379
 380         this.fireEvent('footerbuttonclick', this, type);
 381     },
 382
 383     beforeSelectFile : function(e)
 384     {
 385         e.preventDefault();
 386
 387         if(this.fireEvent('beforeselectfile', this) != false){
 388             this.selectorEl.dom.click();
 389         }
 390     },
 391
 392     onFileSelected : function(e)
 393     {
 394         e.preventDefault();
 395
 396         if(typeof(this.selectorEl.dom.files) == 'undefined' || !this.selectorEl.dom.files.length){
 397             return;
 398         }
 399
 400         var file = this.selectorEl.dom.files[0];
 401
 402         if(this.fireEvent('inspect', this, file) != false){
 403             this.prepare(file);
 404         }
 405
 406     },
 407
 408     trash : function(e)
 409     {
 410         this.fireEvent('trash', this);
 411     },
 412
 413     download : function(e)
 414     {
 415         this.fireEvent('download', this);
 416     },
 417
 418     loadCanvas : function(src)
 419     {
 420         if(this.fireEvent('beforeloadcanvas', this, src) != false){
 421
 422             this.reset();
 423
 424             this.imageEl = document.createElement('img');
 425
 426             var _this = this;
 427
 428             this.imageEl.addEventListener("load", function(){ _this.onLoadCanvas(); });
 429
 430             this.imageEl.src = src;
 431         }
 432     },
 433
 434     onLoadCanvas : function()
 435     {
 436         this.imageEl.OriginWidth = this.imageEl.naturalWidth || this.imageEl.width;
 437         this.imageEl.OriginHeight = this.imageEl.naturalHeight || this.imageEl.height;
 438
 439         if(this.fireEvent('loadcanvas', this, this.imageEl) != false){
 440
 441             this.bodyEl.un('click', this.beforeSelectFile, this);
 442
 443             this.notifyEl.hide();
 444             this.thumbEl.show();
 445             this.footerEl.show();
 446
 447             this.baseRotateLevel();
 448
 449             if(this.isDocument){
 450                 this.setThumbBoxSize();
 451             }
 452
 453             this.setThumbBoxPosition();
 454
 455             this.baseScaleLevel();
 456
 457             this.draw();
 458
 459             this.resize();
 460
 461             this.canvasLoaded = true;
 462
 463         }
 464
 465         if(this.loadMask){
 466             this.maskEl.unmask();
 467         }
 468
 469     },
 470
 471     setCanvasPosition : function()
 472     {
 473         if(!this.canvasEl){
 474             return;
 475         }
 476
 477         var pw = Math.ceil((this.bodyEl.getWidth() - this.canvasEl.width) / 2);
 478         var ph = Math.ceil((this.bodyEl.getHeight() - this.canvasEl.height) / 2);
 479
 480         this.previewEl.setLeft(pw);
 481         this.previewEl.setTop(ph);
 482
 483     },
 484
 485     onMouseDown : function(e)
 486     {
 487         e.stopEvent();
 488
 489         this.dragable = true;
 490         this.pinching = false;
 491
 492         if(this.isDocument && (this.canvasEl.width < this.thumbEl.getWidth() || this.canvasEl.height < this.thumbEl.getHeight())){
 493             this.dragable = false;
 494             return;
 495         }
 496
 497         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 498         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 499
 500     },
 501
 502     onMouseMove : function(e)
 503     {
 504         e.stopEvent();
 505
 506         if(!this.canvasLoaded){
 507             return;
 508         }
 509
 510         if (!this.dragable){
 511             return;
 512         }
 513
 514         var minX = Math.ceil(this.thumbEl.getLeft(true));
 515         var minY = Math.ceil(this.thumbEl.getTop(true));
 516
 517         var maxX = Math.ceil(minX + this.thumbEl.getWidth() - this.canvasEl.width);
 518         var maxY = Math.ceil(minY + this.thumbEl.getHeight() - this.canvasEl.height);
 519
 520         if(minX > maxX) {
 521             var tempX = minX;
 522             minX = maxX;
 523             maxX = tempX;
 524         }
 525
 526         if(minY > maxY) {
 527             var tempY = minY;
 528             minY = maxY;
 529             maxY = tempY;
 530         }
 531
 532         var x = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 533         var y = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 534
 535         x = x - this.mouseX;
 536         y = y - this.mouseY;
 537
 538         var bgX = Math.ceil(x + this.previewEl.getLeft(true));
 539         var bgY = Math.ceil(y + this.previewEl.getTop(true));
 540
 541         bgX = (bgX < minX) ? minX : ((bgX > maxX) ? maxX : bgX);
 542         bgY = (bgY < minY) ? minY : ((bgY > maxY) ? maxY : bgY);
 543
 544         this.previewEl.setLeft(bgX);
 545         this.previewEl.setTop(bgY);
 546
 547         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 548         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 549     },
 550
 551     onMouseUp : function(e)
 552     {
 553         e.stopEvent();
 554
 555         this.dragable = false;
 556     },
 557
 558     onMouseWheel : function(e)
 559     {
 560         e.stopEvent();
 561
 562         this.startScale = this.scale;
 563         this.scale = (e.getWheelDelta() > 0) ? (this.scale + 1) : (this.scale - 1);
 564
 565         if(!this.zoomable()){
 566             this.scale = this.startScale;
 567             return;
 568         }
 569
 570
 571         this.draw();
 572
 573         return;
 574     },
 575
 576     zoomable : function()
 577     {
 578         var minScale = this.thumbEl.getWidth() / this.minWidth;
 579
 580         if(this.minWidth < this.minHeight){
 581             minScale = this.thumbEl.getHeight() / this.minHeight;
 582         }
 583
 584         var width = Math.ceil(this.imageEl.OriginWidth * this.getScaleLevel() / minScale);
 585         var height = Math.ceil(this.imageEl.OriginHeight * this.getScaleLevel() / minScale);
 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.imageEl.OriginHeight >= this.minWidth / this.minHeight) && width < this.minWidth ||
 619                     (this.imageEl.OriginWidth / this.imageEl.OriginHeight <= this.minWidth / 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.fillStyle = 'white';
 898                 context.fillRect(0, 0, this.thumbEl.getWidth() / this.getScaleLevel(), this.thumbEl.getHeight() / this.getScaleLevel());
 899
 900
 901                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 902
 903                 break;
 904             case 90 :
 905
 906                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 907                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 908
 909                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 910                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 911
 912                 var targetWidth = this.minWidth - 2 * x;
 913                 var targetHeight = this.minHeight - 2 * y;
 914
 915                 var scale = 1;
 916
 917                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 918                     scale = targetWidth / width;
 919                 }
 920
 921                 if(x > 0 && y == 0){
 922                     scale = targetHeight / height;
 923                 }
 924
 925                 if(x > 0 && y > 0){
 926                     scale = targetWidth / width;
 927
 928                     if(width < height){
 929                         scale = targetHeight / height;
 930                     }
 931                 }
 932
 933                 context.scale(scale, scale);
 934
 935                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 936                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 937
 938                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 939                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 940
 941                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 942
 943                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 944
 945                 break;
 946             case 180 :
 947
 948                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 949                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 950
 951                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 952                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 953
 954                 var targetWidth = this.minWidth - 2 * x;
 955                 var targetHeight = this.minHeight - 2 * y;
 956
 957                 var scale = 1;
 958
 959                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 960                     scale = targetWidth / width;
 961                 }
 962
 963                 if(x > 0 && y == 0){
 964                     scale = targetHeight / height;
 965                 }
 966
 967                 if(x > 0 && y > 0){
 968                     scale = targetWidth / width;
 969
 970                     if(width < height){
 971                         scale = targetHeight / height;
 972                     }
 973                 }
 974
 975                 context.scale(scale, scale);
 976
 977                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 978                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 979
 980                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 981                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 982
 983                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
 984                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 985
 986                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 987
 988                 break;
 989             case 270 :
 990
 991                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 992                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 993
 994                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 995                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 996
 997                 var targetWidth = this.minWidth - 2 * x;
 998                 var targetHeight = this.minHeight - 2 * y;
 999
1000                 var scale = 1;
1001
1002                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1003                     scale = targetWidth / width;
1004                 }
1005
1006                 if(x > 0 && y == 0){
1007                     scale = targetHeight / height;
1008                 }
1009
1010                 if(x > 0 && y > 0){
1011                     scale = targetWidth / width;
1012
1013                     if(width < height){
1014                         scale = targetHeight / height;
1015                     }
1016                 }
1017
1018                 context.scale(scale, scale);
1019                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1020                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1021
1022                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1023                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1024
1025                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1026
1027                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1028
1029                 break;
1030             default :
1031                 break;
1032         }
1033
1034         this.cropData = canvas.toDataURL(this.cropType);
1035
1036         if(this.fireEvent('crop', this, this.cropData) !== false){
1037             this.process(this.file, this.cropData);
1038         }
1039
1040         return;
1041
1042     },
1043
1044     setThumbBoxSize : function()
1045     {
1046         var width, height;
1047
1048         if(this.isDocument && typeof(this.imageEl) != 'undefined'){
1049             width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.max(this.minWidth, this.minHeight) : Math.min(this.minWidth, this.minHeight);
1050             height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.min(this.minWidth, this.minHeight) : Math.max(this.minWidth, this.minHeight);
1051
1052             this.minWidth = width;
1053             this.minHeight = height;
1054
1055             if(this.rotate == 90 || this.rotate == 270){
1056                 this.minWidth = height;
1057                 this.minHeight = width;
1058             }
1059         }
1060
1061         height = this.windowSize;
1062         width = Math.ceil(this.minWidth * height / this.minHeight);
1063
1064         if(this.minWidth > this.minHeight){
1065             width = this.windowSize;
1066             height = Math.ceil(this.minHeight * width / this.minWidth);
1067         }
1068
1069         this.thumbEl.setStyle({
1070             width : width + 'px',
1071             height : height + 'px'
1072         });
1073
1074         return;
1075
1076     },
1077
1078     setThumbBoxPosition : function()
1079     {
1080         var x = Math.ceil((this.bodyEl.getWidth() - this.thumbEl.getWidth()) / 2 );
1081         var y = Math.ceil((this.bodyEl.getHeight() - this.thumbEl.getHeight()) / 2);
1082
1083         this.thumbEl.setLeft(x);
1084         this.thumbEl.setTop(y);
1085
1086     },
1087
1088     baseRotateLevel : function()
1089     {
1090         this.baseRotate = 1;
1091
1092         if(
1093                 typeof(this.exif) != 'undefined' &&
1094                 typeof(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != 'undefined' &&
1095                 [1, 3, 6, 8].indexOf(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != -1
1096         ){
1097             this.baseRotate = this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']];
1098         }
1099
1100         this.rotate = Roo.dialog.UploadCropbox['Orientation'][this.baseRotate];
1101
1102     },
1103
1104     baseScaleLevel : function()
1105     {
1106         var width, height;
1107
1108         if(this.isDocument){
1109
1110             if(this.baseRotate == 6 || this.baseRotate == 8){
1111
1112                 height = this.thumbEl.getHeight();
1113                 this.baseScale = height / this.imageEl.OriginWidth;
1114
1115                 if(this.imageEl.OriginHeight * this.baseScale > this.thumbEl.getWidth()){
1116                     width = this.thumbEl.getWidth();
1117                     this.baseScale = width / this.imageEl.OriginHeight;
1118                 }
1119
1120                 return;
1121             }
1122
1123             height = this.thumbEl.getHeight();
1124             this.baseScale = height / this.imageEl.OriginHeight;
1125
1126             if(this.imageEl.OriginWidth * this.baseScale > this.thumbEl.getWidth()){
1127                 width = this.thumbEl.getWidth();
1128                 this.baseScale = width / this.imageEl.OriginWidth;
1129             }
1130
1131             return;
1132         }
1133
1134         if(this.baseRotate == 6 || this.baseRotate == 8){
1135
1136             width = this.thumbEl.getHeight();
1137             this.baseScale = width / this.imageEl.OriginHeight;
1138
1139             if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getWidth()){
1140                 height = this.thumbEl.getWidth();
1141                 this.baseScale = height / this.imageEl.OriginHeight;
1142             }
1143
1144             if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1145                 height = this.thumbEl.getWidth();
1146                 this.baseScale = height / this.imageEl.OriginHeight;
1147
1148                 if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getHeight()){
1149                     width = this.thumbEl.getHeight();
1150                     this.baseScale = width / this.imageEl.OriginWidth;
1151                 }
1152             }
1153
1154             return;
1155         }
1156
1157         width = this.thumbEl.getWidth();
1158         this.baseScale = width / this.imageEl.OriginWidth;
1159
1160         if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getHeight()){
1161             height = this.thumbEl.getHeight();
1162             this.baseScale = height / this.imageEl.OriginHeight;
1163         }
1164
1165         if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1166
1167             height = this.thumbEl.getHeight();
1168             this.baseScale = height / this.imageEl.OriginHeight;
1169
1170             if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getWidth()){
1171                 width = this.thumbEl.getWidth();
1172                 this.baseScale = width / this.imageEl.OriginWidth;
1173             }
1174
1175         }
1176
1177         if(this.imageEl.OriginWidth < this.minWidth || this.imageEl.OriginHeight < this.minHeight) {
1178             this.baseScale = width / this.minWidth;
1179         }
1180
1181         return;
1182     },
1183
1184     getScaleLevel : function()
1185     {
1186         return this.baseScale * Math.pow(1.02, this.scale);
1187     },
1188
1189     onTouchStart : function(e)
1190     {
1191         if(!this.canvasLoaded){
1192             this.beforeSelectFile(e);
1193             return;
1194         }
1195
1196         var touches = e.browserEvent.touches;
1197
1198         if(!touches){
1199             return;
1200         }
1201
1202         if(touches.length == 1){
1203             this.onMouseDown(e);
1204             return;
1205         }
1206
1207         if(touches.length != 2){
1208             return;
1209         }
1210
1211         var coords = [];
1212
1213         for(var i = 0, finger; finger = touches[i]; i++){
1214             coords.push(finger.pageX, finger.pageY);
1215         }
1216
1217         var x = Math.pow(coords[0] - coords[2], 2);
1218         var y = Math.pow(coords[1] - coords[3], 2);
1219
1220         this.startDistance = Math.sqrt(x + y);
1221
1222         this.startScale = this.scale;
1223
1224         this.pinching = true;
1225         this.dragable = false;
1226
1227     },
1228
1229     onTouchMove : function(e)
1230     {
1231         if(!this.pinching && !this.dragable){
1232             return;
1233         }
1234
1235         var touches = e.browserEvent.touches;
1236
1237         if(!touches){
1238             return;
1239         }
1240
1241         if(this.dragable){
1242             this.onMouseMove(e);
1243             return;
1244         }
1245
1246         var coords = [];
1247
1248         for(var i = 0, finger; finger = touches[i]; i++){
1249             coords.push(finger.pageX, finger.pageY);
1250         }
1251
1252         var x = Math.pow(coords[0] - coords[2], 2);
1253         var y = Math.pow(coords[1] - coords[3], 2);
1254
1255         this.endDistance = Math.sqrt(x + y);
1256
1257         this.scale = this.startScale + Math.floor(Math.log(this.endDistance / this.startDistance) / Math.log(1.1));
1258
1259         if(!this.zoomable()){
1260             this.scale = this.startScale;
1261             return;
1262         }
1263
1264         this.draw();
1265
1266     },
1267
1268     onTouchEnd : function(e)
1269     {
1270         this.pinching = false;
1271         this.dragable = false;
1272
1273     },
1274
1275     process : function(file, crop)
1276     {
1277         if(this.loadMask){
1278             this.maskEl.mask(this.loadingText);
1279         }
1280
1281         this.xhr = new XMLHttpRequest();
1282
1283         file.xhr = this.xhr;
1284
1285         this.xhr.open(this.method, this.url, true);
1286
1287         var headers = {
1288             "Accept": "application/json",
1289             "Cache-Control": "no-cache",
1290             "X-Requested-With": "XMLHttpRequest"
1291         };
1292
1293         for (var headerName in headers) {
1294             var headerValue = headers[headerName];
1295             if (headerValue) {
1296                 this.xhr.setRequestHeader(headerName, headerValue);
1297             }
1298         }
1299
1300         var _this = this;
1301
1302         this.xhr.onload = function()
1303         {
1304             _this.xhrOnLoad(_this.xhr);
1305         }
1306
1307         this.xhr.onerror = function()
1308         {
1309             _this.xhrOnError(_this.xhr);
1310         }
1311
1312         var formData = new FormData();
1313
1314         formData.append('returnHTML', 'NO');
1315
1316         if(crop){
1317             formData.append('crop', crop);
1318             var blobBin = atob(crop.split(',')[1]);
1319             var array = [];
1320             for(var i = 0; i < blobBin.length; i++) {
1321                 array.push(blobBin.charCodeAt(i));
1322             }
1323             var croppedFile =new Blob([new Uint8Array(array)], {type: this.cropType});
1324             formData.append(this.paramName, croppedFile, file.name);
1325         }
1326
1327         if(typeof(file.filename) != 'undefined'){
1328             formData.append('filename', file.filename);
1329         }
1330
1331         if(typeof(file.mimetype) != 'undefined'){
1332             formData.append('mimetype', file.mimetype);
1333         }
1334
1335         if(this.fireEvent('arrange', this, formData) != false){
1336             this.xhr.send(formData);
1337         };
1338     },
1339
1340     xhrOnLoad : function(xhr)
1341     {
1342         if(this.loadMask){
1343             this.maskEl.unmask();
1344         }
1345
1346         if (xhr.readyState !== 4) {
1347             this.fireEvent('exception', this, xhr);
1348             return;
1349         }
1350
1351         var response = Roo.decode(xhr.responseText);
1352
1353         if(!response.success){
1354             this.fireEvent('exception', this, xhr);
1355             return;
1356         }
1357
1358         var response = Roo.decode(xhr.responseText);
1359
1360         this.fireEvent('upload', this, response);
1361
1362     },
1363
1364     xhrOnError : function()
1365     {
1366         if(this.loadMask){
1367             this.maskEl.unmask();
1368         }
1369
1370         Roo.log('xhr on error');
1371
1372         var response = Roo.decode(xhr.responseText);
1373
1374         Roo.log(response);
1375
1376     },
1377
1378     prepare : function(file)
1379     {
1380         if(this.loadMask){
1381             this.maskEl.mask(this.loadingText);
1382         }
1383
1384         this.file = false;
1385         this.exif = {};
1386
1387         if(typeof(file) === 'string'){
1388             this.loadCanvas(file);
1389             return;
1390         }
1391
1392         if(!file || !this.urlAPI){
1393             return;
1394         }
1395
1396         this.file = file;
1397         if(typeof(file.type) != 'undefined' && file.type.length != 0) {
1398             this.cropType = file.type;
1399         }
1400
1401         var _this = this;
1402
1403         if(this.fireEvent('prepare', this, this.file) != false){
1404
1405             var reader = new FileReader();
1406
1407             reader.onload = function (e) {
1408                 if (e.target.error) {
1409                     Roo.log(e.target.error);
1410                     return;
1411                 }
1412
1413                 var buffer = e.target.result,
1414                     dataView = new DataView(buffer),
1415                     offset = 2,
1416                     maxOffset = dataView.byteLength - 4,
1417                     markerBytes,
1418                     markerLength;
1419
1420                 if (dataView.getUint16(0) === 0xffd8) {
1421                     while (offset < maxOffset) {
1422                         markerBytes = dataView.getUint16(offset);
1423
1424                         if ((markerBytes >= 0xffe0 && markerBytes <= 0xffef) || markerBytes === 0xfffe) {
1425                             markerLength = dataView.getUint16(offset + 2) + 2;
1426                             if (offset + markerLength > dataView.byteLength) {
1427                                 Roo.log('Invalid meta data: Invalid segment size.');
1428                                 break;
1429                             }
1430
1431                             if(markerBytes == 0xffe1){
1432                                 _this.parseExifData(
1433                                     dataView,
1434                                     offset,
1435                                     markerLength
1436                                 );
1437                             }
1438
1439                             offset += markerLength;
1440
1441                             continue;
1442                         }
1443
1444                         break;
1445                     }
1446
1447                 }
1448
1449                 var url = _this.urlAPI.createObjectURL(_this.file);
1450
1451                 _this.loadCanvas(url);
1452
1453                 return;
1454             }
1455
1456             reader.readAsArrayBuffer(this.file);
1457
1458         }
1459
1460     },
1461
1462     parseExifData : function(dataView, offset, length)
1463     {
1464         var tiffOffset = offset + 10,
1465             littleEndian,
1466             dirOffset;
1467
1468         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1469             // No Exif data, might be XMP data instead
1470             return;
1471         }
1472
1473         // Check for the ASCII code for "Exif" (0x45786966):
1474         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1475             // No Exif data, might be XMP data instead
1476             return;
1477         }
1478         if (tiffOffset + 8 > dataView.byteLength) {
1479             Roo.log('Invalid Exif data: Invalid segment size.');
1480             return;
1481         }
1482         // Check for the two null bytes:
1483         if (dataView.getUint16(offset + 8) !== 0x0000) {
1484             Roo.log('Invalid Exif data: Missing byte alignment offset.');
1485             return;
1486         }
1487         // Check the byte alignment:
1488         switch (dataView.getUint16(tiffOffset)) {
1489         case 0x4949:
1490             littleEndian = true;
1491             break;
1492         case 0x4D4D:
1493             littleEndian = false;
1494             break;
1495         default:
1496             Roo.log('Invalid Exif data: Invalid byte alignment marker.');
1497             return;
1498         }
1499         // Check for the TIFF tag marker (0x002A):
1500         if (dataView.getUint16(tiffOffset + 2, littleEndian) !== 0x002A) {
1501             Roo.log('Invalid Exif data: Missing TIFF marker.');
1502             return;
1503         }
1504         // Retrieve the directory offset bytes, usually 0x00000008 or 8 decimal:
1505         dirOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
1506
1507         this.parseExifTags(
1508             dataView,
1509             tiffOffset,
1510             tiffOffset + dirOffset,
1511             littleEndian
1512         );
1513     },
1514
1515     parseExifTags : function(dataView, tiffOffset, dirOffset, littleEndian)
1516     {
1517         var tagsNumber,
1518             dirEndOffset,
1519             i;
1520         if (dirOffset + 6 > dataView.byteLength) {
1521             Roo.log('Invalid Exif data: Invalid directory offset.');
1522             return;
1523         }
1524         tagsNumber = dataView.getUint16(dirOffset, littleEndian);
1525         dirEndOffset = dirOffset + 2 + 12 * tagsNumber;
1526         if (dirEndOffset + 4 > dataView.byteLength) {
1527             Roo.log('Invalid Exif data: Invalid directory size.');
1528             return;
1529         }
1530         for (i = 0; i < tagsNumber; i += 1) {
1531             this.parseExifTag(
1532                 dataView,
1533                 tiffOffset,
1534                 dirOffset + 2 + 12 * i, // tag offset
1535                 littleEndian
1536             );
1537         }
1538         // Return the offset to the next directory:
1539         return dataView.getUint32(dirEndOffset, littleEndian);
1540     },
1541
1542     parseExifTag : function (dataView, tiffOffset, offset, littleEndian)
1543     {
1544         var tag = dataView.getUint16(offset, littleEndian);
1545
1546         this.exif[tag] = this.getExifValue(
1547             dataView,
1548             tiffOffset,
1549             offset,
1550             dataView.getUint16(offset + 2, littleEndian), // tag type
1551             dataView.getUint32(offset + 4, littleEndian), // tag length
1552             littleEndian
1553         );
1554     },
1555
1556     getExifValue : function (dataView, tiffOffset, offset, type, length, littleEndian)
1557     {
1558         var tagType = Roo.dialog.UploadCropbox.exifTagTypes[type],
1559             tagSize,
1560             dataOffset,
1561             values,
1562             i,
1563             str,
1564             c;
1565
1566         if (!tagType) {
1567             Roo.log('Invalid Exif data: Invalid tag type.');
1568             return;
1569         }
1570
1571         tagSize = tagType.size * length;
1572         // Determine if the value is contained in the dataOffset bytes,
1573         // or if the value at the dataOffset is a pointer to the actual data:
1574         dataOffset = tagSize > 4 ?
1575                 tiffOffset + dataView.getUint32(offset + 8, littleEndian) : (offset + 8);
1576         if (dataOffset + tagSize > dataView.byteLength) {
1577             Roo.log('Invalid Exif data: Invalid data offset.');
1578             return;
1579         }
1580         if (length === 1) {
1581             return tagType.getValue(dataView, dataOffset, littleEndian);
1582         }
1583         values = [];
1584         for (i = 0; i < length; i += 1) {
1585             values[i] = tagType.getValue(dataView, dataOffset + i * tagType.size, littleEndian);
1586         }
1587
1588         if (tagType.ascii) {
1589             str = '';
1590             // Concatenate the chars:
1591             for (i = 0; i < values.length; i += 1) {
1592                 c = values[i];
1593                 // Ignore the terminating NULL byte(s):
1594                 if (c === '\u0000') {
1595                     break;
1596                 }
1597                 str += c;
1598             }
1599             return str;
1600         }
1601         return values;
1602     }
1603
1604 });
1605
1606 Roo.apply(Roo.dialog.UploadCropbox, {
1607     tags : {
1608         'Orientation': 0x0112
1609     },
1610
1611     Orientation: {
1612             1: 0, //'top-left',
1613 //            2: 'top-right',
1614             3: 180, //'bottom-right',
1615 //            4: 'bottom-left',
1616 //            5: 'left-top',
1617             6: 90, //'right-top',
1618 //            7: 'right-bottom',
1619             8: 270 //'left-bottom'
1620     },
1621
1622     exifTagTypes : {
1623         // byte, 8-bit unsigned int:
1624         1: {
1625             getValue: function (dataView, dataOffset) {
1626                 return dataView.getUint8(dataOffset);
1627             },
1628             size: 1
1629         },
1630         // ascii, 8-bit byte:
1631         2: {
1632             getValue: function (dataView, dataOffset) {
1633                 return String.fromCharCode(dataView.getUint8(dataOffset));
1634             },
1635             size: 1,
1636             ascii: true
1637         },
1638         // short, 16 bit int:
1639         3: {
1640             getValue: function (dataView, dataOffset, littleEndian) {
1641                 return dataView.getUint16(dataOffset, littleEndian);
1642             },
1643             size: 2
1644         },
1645         // long, 32 bit int:
1646         4: {
1647             getValue: function (dataView, dataOffset, littleEndian) {
1648                 return dataView.getUint32(dataOffset, littleEndian);
1649             },
1650             size: 4
1651         },
1652         // rational = two long values, first is numerator, second is denominator:
1653         5: {
1654             getValue: function (dataView, dataOffset, littleEndian) {
1655                 return dataView.getUint32(dataOffset, littleEndian) /
1656                     dataView.getUint32(dataOffset + 4, littleEndian);
1657             },
1658             size: 8
1659         },
1660         // slong, 32 bit signed int:
1661         9: {
1662             getValue: function (dataView, dataOffset, littleEndian) {
1663                 return dataView.getInt32(dataOffset, littleEndian);
1664             },
1665             size: 4
1666         },
1667         // srational, two slongs, first is numerator, second is denominator:
1668         10: {
1669             getValue: function (dataView, dataOffset, littleEndian) {
1670                 return dataView.getInt32(dataOffset, littleEndian) /
1671                     dataView.getInt32(dataOffset + 4, littleEndian);
1672             },
1673             size: 8
1674         }
1675     },
1676
1677     footer : {
1678         STANDARD : [
1679             {
1680                 tag : 'div',
1681                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1682                 action : 'rotate-left',
1683                 cn : [
1684                     {
1685                         tag : 'button',
1686                         cls : 'btn btn-default',
1687                         html : '<i class="fa fa-undo"></i>'
1688                     }
1689                 ]
1690             },
1691             {
1692                 tag : 'div',
1693                 cls : 'btn-group roo-upload-cropbox-picture',
1694                 action : 'picture',
1695                 cn : [
1696                     {
1697                         tag : 'button',
1698                         cls : 'btn btn-default',
1699                         html : '<i class="fa fa-picture-o"></i>'
1700                     }
1701                 ]
1702             },
1703             {
1704                 tag : 'div',
1705                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1706                 action : 'rotate-right',
1707                 cn : [
1708                     {
1709                         tag : 'button',
1710                         cls : 'btn btn-default',
1711                         html : '<i class="fa fa-repeat"></i>'
1712                     }
1713                 ]
1714             }
1715         ],
1716         DOCUMENT : [
1717             {
1718                 tag : 'div',
1719                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1720                 action : 'rotate-left',
1721                 cn : [
1722                     {
1723                         tag : 'button',
1724                         cls : 'btn btn-default',
1725                         html : '<i class="fa fa-undo"></i>'
1726                     }
1727                 ]
1728             },
1729             {
1730                 tag : 'div',
1731                 cls : 'btn-group roo-upload-cropbox-download',
1732                 action : 'download',
1733                 cn : [
1734                     {
1735                         tag : 'button',
1736                         cls : 'btn btn-default',
1737                         html : '<i class="fa fa-download"></i>'
1738                     }
1739                 ]
1740             },
1741             {
1742                 tag : 'div',
1743                 cls : 'btn-group roo-upload-cropbox-crop',
1744                 action : 'crop',
1745                 cn : [
1746                     {
1747                         tag : 'button',
1748                         cls : 'btn btn-default',
1749                         html : '<i class="fa fa-crop"></i>'
1750                     }
1751                 ]
1752             },
1753             {
1754                 tag : 'div',
1755                 cls : 'btn-group roo-upload-cropbox-trash',
1756                 action : 'trash',
1757                 cn : [
1758                     {
1759                         tag : 'button',
1760                         cls : 'btn btn-default',
1761                         html : '<i class="fa fa-trash"></i>'
1762                     }
1763                 ]
1764             },
1765             {
1766                 tag : 'div',
1767                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1768                 action : 'rotate-right',
1769                 cn : [
1770                     {
1771                         tag : 'button',
1772                         cls : 'btn btn-default',
1773                         html : '<i class="fa fa-repeat"></i>'
1774                     }
1775                 ]
1776             }
1777         ],
1778         ROTATOR : [
1779             {
1780                 tag : 'div',
1781                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1782                 action : 'rotate-left',
1783                 cn : [
1784                     {
1785                         tag : 'button',
1786                         cls : 'btn btn-default',
1787                         html : '<i class="fa fa-undo"></i>'
1788                     }
1789                 ]
1790             },
1791             {
1792                 tag : 'div',
1793                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1794                 action : 'rotate-right',
1795                 cn : [
1796                     {
1797                         tag : 'button',
1798                         cls : 'btn btn-default',
1799                         html : '<i class="fa fa-repeat"></i>'
1800                     }
1801                 ]
1802             }
1803         ]
1804     }
1805 });