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