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