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