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