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

   1
   2 /*
   3 * Licence: LGPL
   4 */
   5
   6 /**
   7  * @class Roo.bootstrap.UploadCropbox
   8  * @extends Roo.bootstrap.Component
   9  * Bootstrap UploadCropbox class
  10  * @cfg {String} emptyText show when image has been loaded
  11  * @cfg {String} rotateNotify show when image too small to rotate
  12  * @cfg {Number} errorTimeout default 3000
  13  * @cfg {Number} minWidth default 300
  14  * @cfg {Number} minHeight default 300
  15  * @cfg {Array} buttons default ['rotateLeft', 'pictureBtn', 'rotateRight']
  16  * @cfg {Boolean} isDocument (true|false) default false
  17  * @cfg {String} url action url
  18  *
  19  * @constructor
  20  * Create a new UploadCropbox
  21  * @param {Object} config The config object
  22  */
  23
  24 Roo.bootstrap.UploadCropbox = function(config){
  25     Roo.bootstrap.UploadCropbox.superclass.constructor.call(this, config);
  26
  27     this.addEvents({
  28         /**
  29          * @event beforeselectfile
  30          * Fire before select file
  31          * @param {Roo.bootstrap.UploadCropbox} this
  32          */
  33         "beforeselectfile" : true,
  34         /**
  35          * @event initial
  36          * Fire after initEvent
  37          * @param {Roo.bootstrap.UploadCropbox} this
  38          */
  39         "initial" : true,
  40         /**
  41          * @event crop
  42          * Fire after initEvent
  43          * @param {Roo.bootstrap.UploadCropbox} this
  44          * @param {String} data
  45          */
  46         "crop" : true,
  47         /**
  48          * @event prepare
  49          * Fire when preparing the file data
  50          * @param {Roo.bootstrap.UploadCropbox} this
  51          * @param {Object} file
  52          */
  53         "prepare" : true,
  54         /**
  55          * @event exception
  56          * Fire when get exception
  57          * @param {Roo.bootstrap.UploadCropbox} this
  58          * @param {String} type
  59          * @param {Object} exception
  60          */
  61         "exception" : true,
  62         /**
  63          * @event beforeloadcanvas
  64          * Fire before load the canvas
  65          * @param {Roo.bootstrap.UploadCropbox} this
  66          * @param {String} src
  67          */
  68         "beforeloadcanvas" : true,
  69         /**
  70          * @event trash
  71          * Fire when trash image
  72          * @param {Roo.bootstrap.UploadCropbox} this
  73          */
  74         "trash" : true,
  75         /**
  76          * @event download
  77          * Fire when download the image
  78          * @param {Roo.bootstrap.UploadCropbox} this
  79          */
  80         "download" : true,
  81         /**
  82          * @event footerbuttonclick
  83          * Fire when footerbuttonclick
  84          * @param {Roo.bootstrap.UploadCropbox} this
  85          * @param {String} type
  86          */
  87         "footerbuttonclick" : true,
  88         /**
  89          * @event resize
  90          * Fire when resize
  91          * @param {Roo.bootstrap.UploadCropbox} this
  92          */
  93         "resize" : true,
  94         /**
  95          * @event rotate
  96          * Fire when rotate the image
  97          * @param {Roo.bootstrap.UploadCropbox} this
  98          * @param {String} pos
  99          */
 100         "rotate" : true,
 101         /**
 102          * @event inspect
 103          * Fire when inspect the file
 104          * @param {Roo.bootstrap.UploadCropbox} this
 105          * @param {Object} file
 106          */
 107         "inspect" : true,
 108         /**
 109          * @event upload
 110          * Fire when xhr upload the file
 111          * @param {Roo.bootstrap.UploadCropbox} this
 112          * @param {Object} data
 113          */
 114         "upload" : true,
 115         /**
 116          * @event arrange
 117          * Fire when arrange the file data
 118          * @param {Roo.bootstrap.UploadCropbox} this
 119          * @param {Object} formData
 120          */
 121         "arrange" : true
 122     });
 123
 124     this.buttons = this.buttons || Roo.bootstrap.UploadCropbox.footer.STANDARD;
 125 };
 126
 127 Roo.extend(Roo.bootstrap.UploadCropbox, Roo.bootstrap.Component,  {
 128
 129     emptyText : 'Click to upload image',
 130     rotateNotify : 'Image is too small to rotate',
 131     errorTimeout : 3000,
 132     scale : 0,
 133     baseScale : 1,
 134     rotate : 0,
 135     dragable : false,
 136     pinching : false,
 137     mouseX : 0,
 138     mouseY : 0,
 139     cropData : false,
 140     minWidth : 300,
 141     minHeight : 300,
 142     file : false,
 143     exif : {},
 144     baseRotate : 1,
 145     cropType : 'image/jpeg',
 146     buttons : false,
 147     canvasLoaded : false,
 148     isDocument : false,
 149
 150     getAutoCreate : function()
 151     {
 152         var cfg = {
 153             tag : 'div',
 154             cls : 'roo-upload-cropbox',
 155             cn : [
 156                 {
 157                     tag : 'div',
 158                     cls : 'roo-upload-cropbox-body',
 159                     style : 'cursor:pointer',
 160                     cn : [
 161                         {
 162                             tag : 'input',
 163                             cls : 'roo-upload-cropbox-selector',
 164                             type : 'file'
 165                         },
 166                         {
 167                             tag : 'div',
 168                             cls : 'roo-upload-cropbox-preview'
 169                         },
 170                         {
 171                             tag : 'div',
 172                             cls : 'roo-upload-cropbox-thumb'
 173                         },
 174                         {
 175                             tag : 'div',
 176                             cls : 'roo-upload-cropbox-empty-notify',
 177                             html : this.emptyText
 178                         },
 179                         {
 180                             tag : 'div',
 181                             cls : 'roo-upload-cropbox-error-notify alert alert-danger',
 182                             html : this.rotateNotify
 183                         }
 184                     ]
 185                 },
 186                 {
 187                     tag : 'div',
 188                     cls : 'roo-upload-cropbox-footer',
 189                     cn : {
 190                         tag : 'div',
 191                         cls : 'btn-group btn-group-justified roo-upload-cropbox-btn-group',
 192                         cn : []
 193                     }
 194                 }
 195             ]
 196         };
 197
 198         return cfg;
 199     },
 200
 201     onRender : function(ct, position)
 202     {
 203         Roo.bootstrap.UploadCropbox.superclass.onRender.call(this, ct, position);
 204
 205         if (this.buttons.length) {
 206
 207             Roo.each(this.buttons, function(bb) {
 208
 209                 var btn = this.el.select('.roo-upload-cropbox-footer div.roo-upload-cropbox-btn-group').first().createChild(bb);
 210
 211                 btn.on('click', this.onFooterButtonClick.createDelegate(this, [bb.action], true));
 212
 213             }, this);
 214         }
 215     },
 216
 217     initEvents : function()
 218     {
 219         this.urlAPI = (window.createObjectURL && window) ||
 220                                 (window.URL && URL.revokeObjectURL && URL) ||
 221                                 (window.webkitURL && webkitURL);
 222
 223         this.bodyEl = this.el.select('.roo-upload-cropbox-body', true).first();
 224         this.bodyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 225
 226         this.selectorEl = this.el.select('.roo-upload-cropbox-selector', true).first();
 227         this.selectorEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 228         this.selectorEl.hide();
 229
 230         this.previewEl = this.el.select('.roo-upload-cropbox-preview', true).first();
 231         this.previewEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 232
 233         this.thumbEl = this.el.select('.roo-upload-cropbox-thumb', true).first();
 234         this.thumbEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 235         this.thumbEl.hide();
 236
 237         this.notifyEl = this.el.select('.roo-upload-cropbox-empty-notify', true).first();
 238         this.notifyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 239
 240         this.errorEl = this.el.select('.roo-upload-cropbox-error-notify', true).first();
 241         this.errorEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 242         this.errorEl.hide();
 243
 244         this.footerEl = this.el.select('.roo-upload-cropbox-footer', true).first();
 245         this.footerEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 246         this.footerEl.hide();
 247
 248         this.setThumbBoxSize();
 249
 250         this.bind();
 251
 252         this.resize();
 253
 254         this.fireEvent('initial', this);
 255     },
 256
 257     bind : function()
 258     {
 259         var _this = this;
 260
 261         window.addEventListener("resize", function() { _this.resize(); } );
 262
 263         this.bodyEl.on('click', this.beforeSelectFile, this);
 264
 265         if(Roo.isTouch){
 266             this.bodyEl.on('touchstart', this.onTouchStart, this);
 267             this.bodyEl.on('touchmove', this.onTouchMove, this);
 268             this.bodyEl.on('touchend', this.onTouchEnd, this);
 269         }
 270
 271         if(!Roo.isTouch){
 272             this.bodyEl.on('mousedown', this.onMouseDown, this);
 273             this.bodyEl.on('mousemove', this.onMouseMove, this);
 274             var mousewheel = (/Firefox/i.test(navigator.userAgent))? 'DOMMouseScroll' : 'mousewheel';
 275             this.bodyEl.on(mousewheel, this.onMouseWheel, this);
 276             Roo.get(document).on('mouseup', this.onMouseUp, this);
 277         }
 278
 279         this.selectorEl.on('change', this.onFileSelected, this);
 280     },
 281
 282     reset : function()
 283     {
 284         this.scale = 0;
 285         this.baseScale = 1;
 286         this.rotate = 0;
 287         this.baseRotate = 1;
 288         this.dragable = false;
 289         this.pinching = false;
 290         this.mouseX = 0;
 291         this.mouseY = 0;
 292         this.cropData = false;
 293         this.notifyEl.dom.innerHTML = this.emptyText;
 294
 295         this.selectorEl.dom.value = '';
 296
 297     },
 298
 299     resize : function()
 300     {
 301         if(this.fireEvent('resize', this) != false){
 302             this.setThumbBoxPosition();
 303             this.setCanvasPosition();
 304         }
 305     },
 306
 307     onFooterButtonClick : function(e, el, o, type)
 308     {
 309         switch (type) {
 310             case 'rotate-left' :
 311                 this.onRotateLeft(e);
 312                 break;
 313             case 'rotate-right' :
 314                 this.onRotateRight(e);
 315                 break;
 316             case 'picture' :
 317                 this.beforeSelectFile(e);
 318                 break;
 319             case 'trash' :
 320                 this.trash(e);
 321                 break;
 322             case 'crop' :
 323                 this.crop(e);
 324                 break;
 325             case 'download' :
 326                 this.download(e);
 327                 break;
 328             default :
 329                 break;
 330         }
 331
 332         this.fireEvent('footerbuttonclick', this, type);
 333     },
 334
 335     beforeSelectFile : function(e)
 336     {
 337         e.preventDefault();
 338
 339         if(this.fireEvent('beforeselectfile', this) != false){
 340             this.selectorEl.dom.click();
 341         }
 342     },
 343
 344     onFileSelected : function(e)
 345     {
 346         e.preventDefault();
 347
 348         if(typeof(this.selectorEl.dom.files) == 'undefined' || !this.selectorEl.dom.files.length){
 349             return;
 350         }
 351
 352         var file = this.selectorEl.dom.files[0];
 353
 354         if(this.fireEvent('inspect', this, file) != false){
 355             this.prepare(file);
 356         }
 357
 358     },
 359
 360     trash : function(e)
 361     {
 362         this.fireEvent('trash', this);
 363     },
 364
 365     download : function(e)
 366     {
 367         this.fireEvent('download', this);
 368     },
 369
 370     loadCanvas : function(src)
 371     {
 372         if(this.fireEvent('beforeloadcanvas', this, src) != false){
 373
 374             this.reset();
 375
 376             this.imageEl = document.createElement('img');
 377
 378             var _this = this;
 379
 380             this.imageEl.addEventListener("load", function(){ _this.onLoadCanvas(); });
 381
 382             this.imageEl.src = src;
 383         }
 384     },
 385
 386     onLoadCanvas : function()
 387     {
 388         this.imageEl.OriginWidth = this.imageEl.naturalWidth || this.imageEl.width;
 389         this.imageEl.OriginHeight = this.imageEl.naturalHeight || this.imageEl.height;
 390
 391         if(this.imageEl.OriginWidth < this.minWidth || this.imageEl.OriginHeight < this.minHeight){
 392             this.reset();
 393             this.fireEvent('exception', this, 'volume', this.imageEl);
 394             return;
 395         }
 396
 397         this.bodyEl.un('click', this.beforeSelectFile, this);
 398
 399         this.notifyEl.hide();
 400         this.thumbEl.show();
 401         this.footerEl.show();
 402
 403
 404
 405         this.baseRotateLevel();
 406
 407         if(this.isDocument){
 408             this.setThumbBoxSize();
 409         }
 410
 411         this.setThumbBoxPosition();
 412
 413         this.baseScaleLevel();
 414
 415         this.draw();
 416
 417         this.resize();
 418
 419         this.canvasLoaded = true;
 420
 421     },
 422
 423     setCanvasPosition : function()
 424     {
 425         if(!this.canvasEl){
 426             return;
 427         }
 428
 429         var pw = Math.ceil((this.bodyEl.getWidth() - this.canvasEl.width) / 2);
 430         var ph = Math.ceil((this.bodyEl.getHeight() - this.canvasEl.height) / 2);
 431
 432         this.previewEl.setLeft(pw);
 433         this.previewEl.setTop(ph);
 434
 435     },
 436
 437     onMouseDown : function(e)
 438     {
 439         e.stopEvent();
 440
 441         this.dragable = true;
 442         this.pinching = false;
 443
 444         if(this.isDocument && (this.canvasEl.width < this.thumbEl.getWidth() || this.canvasEl.height < this.thumbEl.getHeight())){
 445             this.dragable = false;
 446             return;
 447         }
 448
 449         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 450         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 451
 452     },
 453
 454     onMouseMove : function(e)
 455     {
 456         e.stopEvent();
 457
 458         if(!this.canvasLoaded){
 459             return;
 460         }
 461
 462         if (!this.dragable){
 463             return;
 464         }
 465
 466         var minX = Math.ceil(this.thumbEl.getLeft(true));
 467         var minY = Math.ceil(this.thumbEl.getTop(true));
 468
 469         var maxX = Math.ceil(minX + this.thumbEl.getWidth() - this.canvasEl.width);
 470         var maxY = Math.ceil(minY + this.thumbEl.getHeight() - this.canvasEl.height);
 471
 472         var x = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 473         var y = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 474
 475         x = x - this.mouseX;
 476         y = y - this.mouseY;
 477
 478         var bgX = Math.ceil(x + this.previewEl.getLeft(true));
 479         var bgY = Math.ceil(y + this.previewEl.getTop(true));
 480
 481         bgX = (minX < bgX) ? minX : ((maxX > bgX) ? maxX : bgX);
 482         bgY = (minY < bgY) ? minY : ((maxY > bgY) ? maxY : bgY);
 483
 484         this.previewEl.setLeft(bgX);
 485         this.previewEl.setTop(bgY);
 486
 487         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 488         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 489     },
 490
 491     onMouseUp : function(e)
 492     {
 493         e.stopEvent();
 494
 495         this.dragable = false;
 496     },
 497
 498     onMouseWheel : function(e)
 499     {
 500         e.stopEvent();
 501
 502         this.startScale = this.scale;
 503
 504         this.scale = (e.getWheelDelta() == 1) ? (this.scale + 1) : (this.scale - 1);
 505
 506         if(!this.zoomable()){
 507             this.scale = this.startScale;
 508             return;
 509         }
 510
 511         this.draw();
 512
 513         return;
 514     },
 515
 516     zoomable : function()
 517     {
 518         var minScale = this.thumbEl.getWidth() / this.minWidth;
 519
 520         if(this.minWidth < this.minHeight){
 521             minScale = this.thumbEl.getHeight() / this.minHeight;
 522         }
 523
 524         var width = Math.ceil(this.imageEl.OriginWidth * this.getScaleLevel() / minScale);
 525         var height = Math.ceil(this.imageEl.OriginHeight * this.getScaleLevel() / minScale);
 526
 527         if(
 528                 this.isDocument &&
 529                 (this.rotate == 0 || this.rotate == 180) &&
 530                 (
 531                     width > this.imageEl.OriginWidth ||
 532                     height > this.imageEl.OriginHeight ||
 533                     (width < this.minWidth && height < this.minHeight)
 534                 )
 535         ){
 536             return false;
 537         }
 538
 539         if(
 540                 this.isDocument &&
 541                 (this.rotate == 90 || this.rotate == 270) &&
 542                 (
 543                     width > this.imageEl.OriginWidth ||
 544                     height > this.imageEl.OriginHeight ||
 545                     (width < this.minHeight && height < this.minWidth)
 546                 )
 547         ){
 548             return false;
 549         }
 550
 551         if(
 552                 !this.isDocument &&
 553                 (this.rotate == 0 || this.rotate == 180) &&
 554                 (
 555                     width < this.minWidth ||
 556                     width > this.imageEl.OriginWidth ||
 557                     height < this.minHeight ||
 558                     height > this.imageEl.OriginHeight
 559                 )
 560         ){
 561             return false;
 562         }
 563
 564         if(
 565                 !this.isDocument &&
 566                 (this.rotate == 90 || this.rotate == 270) &&
 567                 (
 568                     width < this.minHeight ||
 569                     width > this.imageEl.OriginWidth ||
 570                     height < this.minWidth ||
 571                     height > this.imageEl.OriginHeight
 572                 )
 573         ){
 574             return false;
 575         }
 576
 577         return true;
 578
 579     },
 580
 581     onRotateLeft : function(e)
 582     {
 583         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 584
 585             var minScale = this.thumbEl.getWidth() / this.minWidth;
 586
 587             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 588             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 589
 590             this.startScale = this.scale;
 591
 592             while (this.getScaleLevel() < minScale){
 593
 594                 this.scale = this.scale + 1;
 595
 596                 if(!this.zoomable()){
 597                     break;
 598                 }
 599
 600                 if(
 601                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 602                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 603                 ){
 604                     continue;
 605                 }
 606
 607                 this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 608
 609                 this.draw();
 610
 611                 return;
 612             }
 613
 614             this.scale = this.startScale;
 615
 616             this.onRotateFail();
 617
 618             return false;
 619         }
 620
 621         this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 622
 623         if(this.isDocument){
 624             this.setThumbBoxSize();
 625             this.setThumbBoxPosition();
 626             this.setCanvasPosition();
 627         }
 628
 629         this.draw();
 630
 631         this.fireEvent('rotate', this, 'left');
 632
 633     },
 634
 635     onRotateRight : function(e)
 636     {
 637         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 638
 639             var minScale = this.thumbEl.getWidth() / this.minWidth;
 640
 641             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 642             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 643
 644             this.startScale = this.scale;
 645
 646             while (this.getScaleLevel() < minScale){
 647
 648                 this.scale = this.scale + 1;
 649
 650                 if(!this.zoomable()){
 651                     break;
 652                 }
 653
 654                 if(
 655                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 656                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 657                 ){
 658                     continue;
 659                 }
 660
 661                 this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 662
 663                 this.draw();
 664
 665                 return;
 666             }
 667
 668             this.scale = this.startScale;
 669
 670             this.onRotateFail();
 671
 672             return false;
 673         }
 674
 675         this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 676
 677         if(this.isDocument){
 678             this.setThumbBoxSize();
 679             this.setThumbBoxPosition();
 680             this.setCanvasPosition();
 681         }
 682
 683         this.draw();
 684
 685         this.fireEvent('rotate', this, 'right');
 686     },
 687
 688     onRotateFail : function()
 689     {
 690         this.errorEl.show(true);
 691
 692         var _this = this;
 693
 694         (function() { _this.errorEl.hide(true); }).defer(this.errorTimeout);
 695     },
 696
 697     draw : function()
 698     {
 699         this.previewEl.dom.innerHTML = '';
 700
 701         var canvasEl = document.createElement("canvas");
 702
 703         var contextEl = canvasEl.getContext("2d");
 704
 705         canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 706         canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 707         var center = this.imageEl.OriginWidth / 2;
 708
 709         if(this.imageEl.OriginWidth < this.imageEl.OriginHeight){
 710             canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 711             canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 712             center = this.imageEl.OriginHeight / 2;
 713         }
 714
 715         contextEl.scale(this.getScaleLevel(), this.getScaleLevel());
 716
 717         contextEl.translate(center, center);
 718         contextEl.rotate(this.rotate * Math.PI / 180);
 719
 720         contextEl.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 721
 722         this.canvasEl = document.createElement("canvas");
 723
 724         this.contextEl = this.canvasEl.getContext("2d");
 725
 726         switch (this.rotate) {
 727             case 0 :
 728
 729                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 730                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 731
 732                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 733
 734                 break;
 735             case 90 :
 736
 737                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 738                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 739
 740                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 741                     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);
 742                     break;
 743                 }
 744
 745                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 746
 747                 break;
 748             case 180 :
 749
 750                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 751                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 752
 753                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 754                     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);
 755                     break;
 756                 }
 757
 758                 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);
 759
 760                 break;
 761             case 270 :
 762
 763                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 764                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 765
 766                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 767                     this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 768                     break;
 769                 }
 770
 771                 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);
 772
 773                 break;
 774             default :
 775                 break;
 776         }
 777
 778         this.previewEl.appendChild(this.canvasEl);
 779
 780         this.setCanvasPosition();
 781     },
 782
 783     crop : function()
 784     {
 785         if(!this.canvasLoaded){
 786             return;
 787         }
 788
 789         var imageCanvas = document.createElement("canvas");
 790
 791         var imageContext = imageCanvas.getContext("2d");
 792
 793         imageCanvas.width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 794         imageCanvas.height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 795
 796         var center = imageCanvas.width / 2;
 797
 798         imageContext.translate(center, center);
 799
 800         imageContext.rotate(this.rotate * Math.PI / 180);
 801
 802         imageContext.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 803
 804         var canvas = document.createElement("canvas");
 805
 806         var context = canvas.getContext("2d");
 807
 808         canvas.width = this.minWidth;
 809         canvas.height = this.minHeight;
 810
 811         switch (this.rotate) {
 812             case 0 :
 813
 814                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 815                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 816
 817                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 818                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 819
 820                 var targetWidth = this.minWidth - 2 * x;
 821                 var targetHeight = this.minHeight - 2 * y;
 822
 823                 var scale = 1;
 824
 825                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 826                     scale = targetWidth / width;
 827                 }
 828
 829                 if(x > 0 && y == 0){
 830                     scale = targetHeight / height;
 831                 }
 832
 833                 if(x > 0 && y > 0){
 834                     scale = targetWidth / width;
 835
 836                     if(width < height){
 837                         scale = targetHeight / height;
 838                     }
 839                 }
 840
 841                 context.scale(scale, scale);
 842
 843                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 844                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 845
 846                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 847                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 848
 849                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 850
 851                 break;
 852             case 90 :
 853
 854                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 855                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 856
 857                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 858                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 859
 860                 var targetWidth = this.minWidth - 2 * x;
 861                 var targetHeight = this.minHeight - 2 * y;
 862
 863                 var scale = 1;
 864
 865                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 866                     scale = targetWidth / width;
 867                 }
 868
 869                 if(x > 0 && y == 0){
 870                     scale = targetHeight / height;
 871                 }
 872
 873                 if(x > 0 && y > 0){
 874                     scale = targetWidth / width;
 875
 876                     if(width < height){
 877                         scale = targetHeight / height;
 878                     }
 879                 }
 880
 881                 context.scale(scale, scale);
 882
 883                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 884                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 885
 886                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 887                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 888
 889                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 890
 891                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 892
 893                 break;
 894             case 180 :
 895
 896                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 897                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 898
 899                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 900                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 901
 902                 var targetWidth = this.minWidth - 2 * x;
 903                 var targetHeight = this.minHeight - 2 * y;
 904
 905                 var scale = 1;
 906
 907                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 908                     scale = targetWidth / width;
 909                 }
 910
 911                 if(x > 0 && y == 0){
 912                     scale = targetHeight / height;
 913                 }
 914
 915                 if(x > 0 && y > 0){
 916                     scale = targetWidth / width;
 917
 918                     if(width < height){
 919                         scale = targetHeight / height;
 920                     }
 921                 }
 922
 923                 context.scale(scale, scale);
 924
 925                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 926                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 927
 928                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 929                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 930
 931                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
 932                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 933
 934                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 935
 936                 break;
 937             case 270 :
 938
 939                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 940                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 941
 942                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 943                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 944
 945                 var targetWidth = this.minWidth - 2 * x;
 946                 var targetHeight = this.minHeight - 2 * y;
 947
 948                 var scale = 1;
 949
 950                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 951                     scale = targetWidth / width;
 952                 }
 953
 954                 if(x > 0 && y == 0){
 955                     scale = targetHeight / height;
 956                 }
 957
 958                 if(x > 0 && y > 0){
 959                     scale = targetWidth / width;
 960
 961                     if(width < height){
 962                         scale = targetHeight / height;
 963                     }
 964                 }
 965
 966                 context.scale(scale, scale);
 967
 968                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 969                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 970
 971                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 972                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 973
 974                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
 975
 976                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 977
 978                 break;
 979             default :
 980                 break;
 981         }
 982
 983         this.cropData = canvas.toDataURL(this.cropType);
 984
 985         this.fireEvent('crop', this, this.cropData);
 986
 987         return;
 988
 989     },
 990
 991     setThumbBoxSize : function()
 992     {
 993         var width, height;
 994
 995         if(this.isDocument && typeof(this.imageEl) != 'undefined'){
 996             width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.max(this.minWidth, this.minHeight) : Math.min(this.minWidth, this.minHeight);
 997             height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.min(this.minWidth, this.minHeight) : Math.max(this.minWidth, this.minHeight);
 998
 999             this.minWidth = width;
1000             this.minHeight = height;
1001
1002             if(this.rotate == 90 || this.rotate == 270){
1003                 this.minWidth = height;
1004                 this.minHeight = width;
1005             }
1006         }
1007
1008         height = 300;
1009         width = Math.ceil(this.minWidth * height / this.minHeight);
1010
1011         if(this.minWidth > this.minHeight){
1012             width = 300;
1013             height = Math.ceil(this.minHeight * width / this.minWidth);
1014         }
1015
1016         this.thumbEl.setStyle({
1017             width : width + 'px',
1018             height : height + 'px'
1019         });
1020
1021         return;
1022
1023     },
1024
1025     setThumbBoxPosition : function()
1026     {
1027         var x = Math.ceil((this.bodyEl.getWidth() - this.thumbEl.getWidth()) / 2 );
1028         var y = Math.ceil((this.bodyEl.getHeight() - this.thumbEl.getHeight()) / 2);
1029
1030         this.thumbEl.setLeft(x);
1031         this.thumbEl.setTop(y);
1032
1033     },
1034
1035     baseRotateLevel : function()
1036     {
1037         this.baseRotate = 1;
1038
1039         if(
1040                 typeof(this.exif) != 'undefined' &&
1041                 typeof(this.exif[Roo.bootstrap.UploadCropbox['tags']['Orientation']]) != 'undefined' &&
1042                 [1, 3, 6, 8].indexOf(this.exif[Roo.bootstrap.UploadCropbox['tags']['Orientation']]) != -1
1043         ){
1044             this.baseRotate = this.exif[Roo.bootstrap.UploadCropbox['tags']['Orientation']];
1045         }
1046
1047         this.rotate = Roo.bootstrap.UploadCropbox['Orientation'][this.baseRotate];
1048
1049     },
1050
1051     baseScaleLevel : function()
1052     {
1053         var width, height;
1054
1055         if(this.isDocument){
1056
1057             if(this.baseRotate == 6 || this.baseRotate == 8){
1058
1059                 height = this.thumbEl.getHeight();
1060                 this.baseScale = height / this.imageEl.OriginWidth;
1061
1062                 if(this.imageEl.OriginHeight * this.baseScale > this.thumbEl.getWidth()){
1063                     width = this.thumbEl.getWidth();
1064                     this.baseScale = width / this.imageEl.OriginHeight;
1065                 }
1066
1067                 return;
1068             }
1069
1070             height = this.thumbEl.getHeight();
1071             this.baseScale = height / this.imageEl.OriginHeight;
1072
1073             if(this.imageEl.OriginWidth * this.baseScale > this.thumbEl.getWidth()){
1074                 width = this.thumbEl.getWidth();
1075                 this.baseScale = width / this.imageEl.OriginWidth;
1076             }
1077
1078             return;
1079         }
1080
1081         if(this.baseRotate == 6 || this.baseRotate == 8){
1082
1083             width = this.thumbEl.getHeight();
1084             this.baseScale = width / this.imageEl.OriginHeight;
1085
1086             if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getWidth()){
1087                 height = this.thumbEl.getWidth();
1088                 this.baseScale = height / this.imageEl.OriginHeight;
1089             }
1090
1091             if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1092                 height = this.thumbEl.getWidth();
1093                 this.baseScale = height / this.imageEl.OriginHeight;
1094
1095                 if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getHeight()){
1096                     width = this.thumbEl.getHeight();
1097                     this.baseScale = width / this.imageEl.OriginWidth;
1098                 }
1099             }
1100
1101             return;
1102         }
1103
1104         width = this.thumbEl.getWidth();
1105         this.baseScale = width / this.imageEl.OriginWidth;
1106
1107         if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getHeight()){
1108             height = this.thumbEl.getHeight();
1109             this.baseScale = height / this.imageEl.OriginHeight;
1110         }
1111
1112         if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1113
1114             height = this.thumbEl.getHeight();
1115             this.baseScale = height / this.imageEl.OriginHeight;
1116
1117             if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getWidth()){
1118                 width = this.thumbEl.getWidth();
1119                 this.baseScale = width / this.imageEl.OriginWidth;
1120             }
1121
1122         }
1123
1124         return;
1125     },
1126
1127     getScaleLevel : function()
1128     {
1129         return this.baseScale * Math.pow(1.1, this.scale);
1130     },
1131
1132     onTouchStart : function(e)
1133     {
1134         if(!this.canvasLoaded){
1135             this.beforeSelectFile(e);
1136             return;
1137         }
1138
1139         var touches = e.browserEvent.touches;
1140
1141         if(!touches){
1142             return;
1143         }
1144
1145         if(touches.length == 1){
1146             this.onMouseDown(e);
1147             return;
1148         }
1149
1150         if(touches.length != 2){
1151             return;
1152         }
1153
1154         var coords = [];
1155
1156         for(var i = 0, finger; finger = touches[i]; i++){
1157             coords.push(finger.pageX, finger.pageY);
1158         }
1159
1160         var x = Math.pow(coords[0] - coords[2], 2);
1161         var y = Math.pow(coords[1] - coords[3], 2);
1162
1163         this.startDistance = Math.sqrt(x + y);
1164
1165         this.startScale = this.scale;
1166
1167         this.pinching = true;
1168         this.dragable = false;
1169
1170     },
1171
1172     onTouchMove : function(e)
1173     {
1174         if(!this.pinching && !this.dragable){
1175             return;
1176         }
1177
1178         var touches = e.browserEvent.touches;
1179
1180         if(!touches){
1181             return;
1182         }
1183
1184         if(this.dragable){
1185             this.onMouseMove(e);
1186             return;
1187         }
1188
1189         var coords = [];
1190
1191         for(var i = 0, finger; finger = touches[i]; i++){
1192             coords.push(finger.pageX, finger.pageY);
1193         }
1194
1195         var x = Math.pow(coords[0] - coords[2], 2);
1196         var y = Math.pow(coords[1] - coords[3], 2);
1197
1198         this.endDistance = Math.sqrt(x + y);
1199
1200         this.scale = this.startScale + Math.floor(Math.log(this.endDistance / this.startDistance) / Math.log(1.1));
1201
1202         if(!this.zoomable()){
1203             this.scale = this.startScale;
1204             return;
1205         }
1206
1207         this.draw();
1208
1209     },
1210
1211     onTouchEnd : function(e)
1212     {
1213         this.pinching = false;
1214         this.dragable = false;
1215
1216     },
1217
1218     process : function(file, crop)
1219     {
1220         this.xhr = new XMLHttpRequest();
1221
1222         if(typeof(this.file.id) != 'undefined' && this.file.id * 1 > 0){
1223             return;
1224         }
1225
1226         file.xhr = this.xhr;
1227
1228         this.xhr.open(this.method, this.url, true);
1229
1230         var headers = {
1231             "Accept": "application/json",
1232             "Cache-Control": "no-cache",
1233             "X-Requested-With": "XMLHttpRequest"
1234         };
1235
1236         for (var headerName in headers) {
1237             var headerValue = headers[headerName];
1238             if (headerValue) {
1239                 this.xhr.setRequestHeader(headerName, headerValue);
1240             }
1241         }
1242
1243         var _this = this;
1244
1245         this.xhr.onload = function()
1246         {
1247             _this.xhrOnLoad(_this.xhr);
1248         }
1249
1250         this.xhr.onerror = function()
1251         {
1252             _this.xhrOnError(_this.xhr);
1253         }
1254
1255         var formData = new FormData();
1256
1257         formData.append('returnHTML', 'NO');
1258
1259         if(crop){
1260             formData.append('crop', crop);
1261         }
1262
1263         formData.append(this.paramName, file, file.name);
1264
1265         if(this.fireEvent('arrange', this, formData) != false){
1266             this.xhr.send(formData);
1267         };
1268     },
1269
1270     xhrOnLoad : function(xhr)
1271     {
1272         if (xhr.readyState !== 4) {
1273             this.fireEvent('exception', this, 'xhr', xhr);
1274             return;
1275         }
1276
1277         var response = Roo.decode(xhr.responseText);
1278
1279         if(!response.success){
1280             this.fireEvent('exception', this, 'xhr', xhr);
1281             return;
1282         }
1283
1284         var response = Roo.decode(xhr.responseText);
1285
1286         this.fireEvent('upload', this, response);
1287
1288     },
1289
1290     xhrOnError : function()
1291     {
1292         Roo.log('xhr on error');
1293
1294         var response = Roo.decode(xhr.responseText);
1295
1296         Roo.log(response);
1297
1298     },
1299
1300     uploadFromSource : function(file, crop)
1301     {
1302         this.xhr = new XMLHttpRequest();
1303
1304         this.xhr.open(this.method, this.url, true);
1305
1306         var headers = {
1307             "Accept": "application/json",
1308             "Cache-Control": "no-cache",
1309             "X-Requested-With": "XMLHttpRequest"
1310         };
1311
1312         for (var headerName in headers) {
1313             var headerValue = headers[headerName];
1314             if (headerValue) {
1315                 this.xhr.setRequestHeader(headerName, headerValue);
1316             }
1317         }
1318
1319         var _this = this;
1320
1321         this.xhr.onload = function()
1322         {
1323             _this.xhrOnLoad(_this.xhr);
1324         }
1325
1326         this.xhr.onerror = function()
1327         {
1328             _this.xhrOnError(_this.xhr);
1329         }
1330
1331         var formData = new FormData();
1332
1333         formData.append('returnHTML', 'NO');
1334
1335         formData.append('crop', crop);
1336
1337         if(typeof(file.filename) != 'undefined'){
1338             formData.append('filename', file.filename);
1339         }
1340
1341         if(typeof(file.mimetype) != 'undefined'){
1342             formData.append('mimetype', file.mimetype);
1343         }
1344
1345         if(this.fireEvent('arrange', this, formData) != false){
1346             this.xhr.send(formData);
1347         };
1348     },
1349
1350     prepare : function(file)
1351     {
1352         this.file = false;
1353         this.exif = {};
1354
1355         if(typeof(file) === 'string'){
1356             this.loadCanvas(file);
1357             return;
1358         }
1359
1360         if(!file || !this.urlAPI){
1361             return;
1362         }
1363
1364         this.file = file;
1365         this.cropType = file.type;
1366
1367         var _this = this;
1368
1369         if(this.fireEvent('prepare', this, this.file) != false){
1370
1371             var reader = new FileReader();
1372
1373             reader.onload = function (e) {
1374                 if (e.target.error) {
1375                     Roo.log(e.target.error);
1376                     return;
1377                 }
1378
1379                 var buffer = e.target.result,
1380                     dataView = new DataView(buffer),
1381                     offset = 2,
1382                     maxOffset = dataView.byteLength - 4,
1383                     markerBytes,
1384                     markerLength;
1385
1386                 if (dataView.getUint16(0) === 0xffd8) {
1387                     while (offset < maxOffset) {
1388                         markerBytes = dataView.getUint16(offset);
1389
1390                         if ((markerBytes >= 0xffe0 && markerBytes <= 0xffef) || markerBytes === 0xfffe) {
1391                             markerLength = dataView.getUint16(offset + 2) + 2;
1392                             if (offset + markerLength > dataView.byteLength) {
1393                                 Roo.log('Invalid meta data: Invalid segment size.');
1394                                 break;
1395                             }
1396
1397                             if(markerBytes == 0xffe1){
1398                                 _this.parseExifData(
1399                                     dataView,
1400                                     offset,
1401                                     markerLength
1402                                 );
1403                             }
1404
1405                             offset += markerLength;
1406
1407                             continue;
1408                         }
1409
1410                         break;
1411                     }
1412
1413                 }
1414
1415                 var url = _this.urlAPI.createObjectURL(_this.file);
1416
1417                 _this.loadCanvas(url);
1418
1419                 return;
1420             }
1421
1422             reader.readAsArrayBuffer(this.file);
1423
1424         }
1425
1426     },
1427
1428     parseExifData : function(dataView, offset, length)
1429     {
1430         var tiffOffset = offset + 10,
1431             littleEndian,
1432             dirOffset;
1433
1434         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1435             // No Exif data, might be XMP data instead
1436             return;
1437         }
1438
1439         // Check for the ASCII code for "Exif" (0x45786966):
1440         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1441             // No Exif data, might be XMP data instead
1442             return;
1443         }
1444         if (tiffOffset + 8 > dataView.byteLength) {
1445             Roo.log('Invalid Exif data: Invalid segment size.');
1446             return;
1447         }
1448         // Check for the two null bytes:
1449         if (dataView.getUint16(offset + 8) !== 0x0000) {
1450             Roo.log('Invalid Exif data: Missing byte alignment offset.');
1451             return;
1452         }
1453         // Check the byte alignment:
1454         switch (dataView.getUint16(tiffOffset)) {
1455         case 0x4949:
1456             littleEndian = true;
1457             break;
1458         case 0x4D4D:
1459             littleEndian = false;
1460             break;
1461         default:
1462             Roo.log('Invalid Exif data: Invalid byte alignment marker.');
1463             return;
1464         }
1465         // Check for the TIFF tag marker (0x002A):
1466         if (dataView.getUint16(tiffOffset + 2, littleEndian) !== 0x002A) {
1467             Roo.log('Invalid Exif data: Missing TIFF marker.');
1468             return;
1469         }
1470         // Retrieve the directory offset bytes, usually 0x00000008 or 8 decimal:
1471         dirOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
1472
1473         this.parseExifTags(
1474             dataView,
1475             tiffOffset,
1476             tiffOffset + dirOffset,
1477             littleEndian
1478         );
1479     },
1480
1481     parseExifTags : function(dataView, tiffOffset, dirOffset, littleEndian)
1482     {
1483         var tagsNumber,
1484             dirEndOffset,
1485             i;
1486         if (dirOffset + 6 > dataView.byteLength) {
1487             Roo.log('Invalid Exif data: Invalid directory offset.');
1488             return;
1489         }
1490         tagsNumber = dataView.getUint16(dirOffset, littleEndian);
1491         dirEndOffset = dirOffset + 2 + 12 * tagsNumber;
1492         if (dirEndOffset + 4 > dataView.byteLength) {
1493             Roo.log('Invalid Exif data: Invalid directory size.');
1494             return;
1495         }
1496         for (i = 0; i < tagsNumber; i += 1) {
1497             this.parseExifTag(
1498                 dataView,
1499                 tiffOffset,
1500                 dirOffset + 2 + 12 * i, // tag offset
1501                 littleEndian
1502             );
1503         }
1504         // Return the offset to the next directory:
1505         return dataView.getUint32(dirEndOffset, littleEndian);
1506     },
1507
1508     parseExifTag : function (dataView, tiffOffset, offset, littleEndian)
1509     {
1510         var tag = dataView.getUint16(offset, littleEndian);
1511
1512         this.exif[tag] = this.getExifValue(
1513             dataView,
1514             tiffOffset,
1515             offset,
1516             dataView.getUint16(offset + 2, littleEndian), // tag type
1517             dataView.getUint32(offset + 4, littleEndian), // tag length
1518             littleEndian
1519         );
1520     },
1521
1522     getExifValue : function (dataView, tiffOffset, offset, type, length, littleEndian)
1523     {
1524         var tagType = Roo.bootstrap.UploadCropbox.exifTagTypes[type],
1525             tagSize,
1526             dataOffset,
1527             values,
1528             i,
1529             str,
1530             c;
1531
1532         if (!tagType) {
1533             Roo.log('Invalid Exif data: Invalid tag type.');
1534             return;
1535         }
1536
1537         tagSize = tagType.size * length;
1538         // Determine if the value is contained in the dataOffset bytes,
1539         // or if the value at the dataOffset is a pointer to the actual data:
1540         dataOffset = tagSize > 4 ?
1541                 tiffOffset + dataView.getUint32(offset + 8, littleEndian) : (offset + 8);
1542         if (dataOffset + tagSize > dataView.byteLength) {
1543             Roo.log('Invalid Exif data: Invalid data offset.');
1544             return;
1545         }
1546         if (length === 1) {
1547             return tagType.getValue(dataView, dataOffset, littleEndian);
1548         }
1549         values = [];
1550         for (i = 0; i < length; i += 1) {
1551             values[i] = tagType.getValue(dataView, dataOffset + i * tagType.size, littleEndian);
1552         }
1553
1554         if (tagType.ascii) {
1555             str = '';
1556             // Concatenate the chars:
1557             for (i = 0; i < values.length; i += 1) {
1558                 c = values[i];
1559                 // Ignore the terminating NULL byte(s):
1560                 if (c === '\u0000') {
1561                     break;
1562                 }
1563                 str += c;
1564             }
1565             return str;
1566         }
1567         return values;
1568     }
1569
1570 });
1571
1572 Roo.apply(Roo.bootstrap.UploadCropbox, {
1573     tags : {
1574         'Orientation': 0x0112
1575     },
1576
1577     Orientation: {
1578             1: 0, //'top-left',
1579 //            2: 'top-right',
1580             3: 180, //'bottom-right',
1581 //            4: 'bottom-left',
1582 //            5: 'left-top',
1583             6: 90, //'right-top',
1584 //            7: 'right-bottom',
1585             8: 270 //'left-bottom'
1586     },
1587
1588     exifTagTypes : {
1589         // byte, 8-bit unsigned int:
1590         1: {
1591             getValue: function (dataView, dataOffset) {
1592                 return dataView.getUint8(dataOffset);
1593             },
1594             size: 1
1595         },
1596         // ascii, 8-bit byte:
1597         2: {
1598             getValue: function (dataView, dataOffset) {
1599                 return String.fromCharCode(dataView.getUint8(dataOffset));
1600             },
1601             size: 1,
1602             ascii: true
1603         },
1604         // short, 16 bit int:
1605         3: {
1606             getValue: function (dataView, dataOffset, littleEndian) {
1607                 return dataView.getUint16(dataOffset, littleEndian);
1608             },
1609             size: 2
1610         },
1611         // long, 32 bit int:
1612         4: {
1613             getValue: function (dataView, dataOffset, littleEndian) {
1614                 return dataView.getUint32(dataOffset, littleEndian);
1615             },
1616             size: 4
1617         },
1618         // rational = two long values, first is numerator, second is denominator:
1619         5: {
1620             getValue: function (dataView, dataOffset, littleEndian) {
1621                 return dataView.getUint32(dataOffset, littleEndian) /
1622                     dataView.getUint32(dataOffset + 4, littleEndian);
1623             },
1624             size: 8
1625         },
1626         // slong, 32 bit signed int:
1627         9: {
1628             getValue: function (dataView, dataOffset, littleEndian) {
1629                 return dataView.getInt32(dataOffset, littleEndian);
1630             },
1631             size: 4
1632         },
1633         // srational, two slongs, first is numerator, second is denominator:
1634         10: {
1635             getValue: function (dataView, dataOffset, littleEndian) {
1636                 return dataView.getInt32(dataOffset, littleEndian) /
1637                     dataView.getInt32(dataOffset + 4, littleEndian);
1638             },
1639             size: 8
1640         }
1641     },
1642
1643     footer : {
1644         STANDARD : [
1645             {
1646                 tag : 'div',
1647                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1648                 action : 'rotate-left',
1649                 cn : [
1650                     {
1651                         tag : 'button',
1652                         cls : 'btn btn-default',
1653                         html : '<i class="fa fa-undo"></i>'
1654                     }
1655                 ]
1656             },
1657             {
1658                 tag : 'div',
1659                 cls : 'btn-group roo-upload-cropbox-picture',
1660                 action : 'picture',
1661                 cn : [
1662                     {
1663                         tag : 'button',
1664                         cls : 'btn btn-default',
1665                         html : '<i class="fa fa-picture-o"></i>'
1666                     }
1667                 ]
1668             },
1669             {
1670                 tag : 'div',
1671                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1672                 action : 'rotate-right',
1673                 cn : [
1674                     {
1675                         tag : 'button',
1676                         cls : 'btn btn-default',
1677                         html : '<i class="fa fa-repeat"></i>'
1678                     }
1679                 ]
1680             }
1681         ],
1682         DOCUMENT : [
1683             {
1684                 tag : 'div',
1685                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1686                 action : 'rotate-left',
1687                 cn : [
1688                     {
1689                         tag : 'button',
1690                         cls : 'btn btn-default',
1691                         html : '<i class="fa fa-undo"></i>'
1692                     }
1693                 ]
1694             },
1695             {
1696                 tag : 'div',
1697                 cls : 'btn-group roo-upload-cropbox-download',
1698                 action : 'download',
1699                 cn : [
1700                     {
1701                         tag : 'button',
1702                         cls : 'btn btn-default',
1703                         html : '<i class="fa fa-download"></i>'
1704                     }
1705                 ]
1706             },
1707             {
1708                 tag : 'div',
1709                 cls : 'btn-group roo-upload-cropbox-crop',
1710                 action : 'crop',
1711                 cn : [
1712                     {
1713                         tag : 'button',
1714                         cls : 'btn btn-default',
1715                         html : '<i class="fa fa-crop"></i>'
1716                     }
1717                 ]
1718             },
1719             {
1720                 tag : 'div',
1721                 cls : 'btn-group roo-upload-cropbox-trash',
1722                 action : 'trash',
1723                 cn : [
1724                     {
1725                         tag : 'button',
1726                         cls : 'btn btn-default',
1727                         html : '<i class="fa fa-trash"></i>'
1728                     }
1729                 ]
1730             },
1731             {
1732                 tag : 'div',
1733                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1734                 action : 'rotate-right',
1735                 cn : [
1736                     {
1737                         tag : 'button',
1738                         cls : 'btn btn-default',
1739                         html : '<i class="fa fa-repeat"></i>'
1740                     }
1741                 ]
1742             }
1743         ],
1744         ROTATOR : [
1745             {
1746                 tag : 'div',
1747                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1748                 action : 'rotate-left',
1749                 cn : [
1750                     {
1751                         tag : 'button',
1752                         cls : 'btn btn-default',
1753                         html : '<i class="fa fa-undo"></i>'
1754                     }
1755                 ]
1756             },
1757             {
1758                 tag : 'div',
1759                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1760                 action : 'rotate-right',
1761                 cn : [
1762                     {
1763                         tag : 'button',
1764                         cls : 'btn btn-default',
1765                         html : '<i class="fa fa-repeat"></i>'
1766                     }
1767                 ]
1768             }
1769         ]
1770     }
1771 });