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

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