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

   1
   2 /*
   3 * Licence: LGPL
   4 */
   5
   6 /**
   7  * @class Roo.dialog.UploadCropbox
   8  * @extends Roo.BoxComponent
   9  * Dialog 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.dialog.UploadCropbox = function(config){
  29     Roo.dialog.UploadCropbox.superclass.constructor.call(this, config);
  30
  31     this.addEvents({
  32         /**
  33          * @event beforeselectfile
  34          * Fire before select file
  35          * @param {Roo.dialog.UploadCropbox} this
  36          */
  37         "beforeselectfile" : true,
  38         /**
  39          * @event initial
  40          * Fire after initEvent
  41          * @param {Roo.dialog.UploadCropbox} this
  42          */
  43         "initial" : true,
  44         /**
  45          * @event crop
  46          * Fire after initEvent
  47          * @param {Roo.dialog.UploadCropbox} this
  48          * @param {String} data
  49          */
  50         "crop" : true,
  51         /**
  52          * @event prepare
  53          * Fire when preparing the file data
  54          * @param {Roo.dialog.UploadCropbox} this
  55          * @param {Object} file
  56          */
  57         "prepare" : true,
  58         /**
  59          * @event exception
  60          * Fire when get exception
  61          * @param {Roo.dialog.UploadCropbox} this
  62          * @param {XMLHttpRequest} xhr
  63          */
  64         "exception" : true,
  65         /**
  66          * @event beforeloadcanvas
  67          * Fire before load the canvas
  68          * @param {Roo.dialog.UploadCropbox} this
  69          * @param {String} src
  70          */
  71         "beforeloadcanvas" : true,
  72         /**
  73          * @event trash
  74          * Fire when trash image
  75          * @param {Roo.dialog.UploadCropbox} this
  76          */
  77         "trash" : true,
  78         /**
  79          * @event download
  80          * Fire when download the image
  81          * @param {Roo.dialog.UploadCropbox} this
  82          */
  83         "download" : true,
  84         /**
  85          * @event footerbuttonclick
  86          * Fire when footerbuttonclick
  87          * @param {Roo.dialog.UploadCropbox} this
  88          * @param {String} type
  89          */
  90         "footerbuttonclick" : true,
  91         /**
  92          * @event resize
  93          * Fire when resize
  94          * @param {Roo.dialog.UploadCropbox} this
  95          */
  96         "resize" : true,
  97         /**
  98          * @event rotate
  99          * Fire when rotate the image
 100          * @param {Roo.dialog.UploadCropbox} this
 101          * @param {String} pos
 102          */
 103         "rotate" : true,
 104         /**
 105          * @event inspect
 106          * Fire when inspect the file
 107          * @param {Roo.dialog.UploadCropbox} this
 108          * @param {Object} file
 109          */
 110         "inspect" : true,
 111         /**
 112          * @event upload
 113          * Fire when xhr upload the file
 114          * @param {Roo.dialog.UploadCropbox} this
 115          * @param {Object} data
 116          */
 117         "upload" : true,
 118         /**
 119          * @event arrange
 120          * Fire when arrange the file data
 121          * @param {Roo.dialog.UploadCropbox} this
 122          * @param {Object} formData
 123          */
 124         "arrange" : true,
 125         /**
 126          * @event loadcanvas
 127          * Fire after load the canvas
 128          * @param {Roo.dialog.UploadCropbox}
 129          * @param {Object} imgEl
 130          */
 131         "loadcanvas" : true
 132     });
 133
 134     this.buttons = this.buttons || Roo.dialog.UploadCropbox.footer.STANDARD;
 135 };
 136
 137 Roo.extend(Roo.dialog.UploadCropbox, Roo.Component,  {
 138
 139     emptyText : 'Click to upload image',
 140     rotateNotify : 'Image is too small to rotate',
 141     errorTimeout : 3000,
 142     scale : 0,
 143     baseScale : 1,
 144     rotate : 0,
 145     dragable : false,
 146     pinching : false,
 147     mouseX : 0,
 148     mouseY : 0,
 149     cropData : false,
 150     minWidth : 300,
 151     minHeight : 300,
 152     file : false,
 153     exif : {},
 154     baseRotate : 1,
 155     cropType : 'image/jpeg',
 156     buttons : false,
 157     canvasLoaded : false,
 158     isDocument : false,
 159     method : 'POST',
 160     paramName : 'imageUpload',
 161     loadMask : true,
 162     loadingText : 'Loading...',
 163     maskEl : false,
 164
 165     getAutoCreate : function()
 166     {
 167         var cfg = {
 168             tag : 'div',
 169             cls : 'roo-upload-cropbox',
 170             cn : [
 171                 {
 172                     tag : 'input',
 173                     cls : 'roo-upload-cropbox-selector',
 174                     type : 'file'
 175                 },
 176                 {
 177                     tag : 'div',
 178                     cls : 'roo-upload-cropbox-body',
 179                     style : 'cursor:pointer',
 180                     cn : [
 181                         {
 182                             tag : 'div',
 183                             cls : 'roo-upload-cropbox-preview'
 184                         },
 185                         {
 186                             tag : 'div',
 187                             cls : 'roo-upload-cropbox-thumb'
 188                         },
 189                         {
 190                             tag : 'div',
 191                             cls : 'roo-upload-cropbox-empty-notify',
 192                             html : this.emptyText
 193                         },
 194                         {
 195                             tag : 'div',
 196                             cls : 'roo-upload-cropbox-error-notify alert alert-danger',
 197                             html : this.rotateNotify
 198                         }
 199                     ]
 200                 },
 201                 {
 202                     tag : 'div',
 203                     cls : 'roo-upload-cropbox-footer',
 204                     cn : {
 205                         tag : 'div',
 206                         cls : 'btn-group btn-group-justified roo-upload-cropbox-btn-group',
 207                         cn : []
 208                     }
 209                 }
 210             ]
 211         };
 212
 213         return cfg;
 214     },
 215
 216     onRender : function(ct, position)
 217     {
 218         Roo.dialog.UploadCropbox.superclass.onRender.call(this, ct, position);
 219
 220         if(this.el){
 221             if (this.el.attr('xtype')) {
 222                 this.el.attr('xtypex', this.el.attr('xtype'));
 223                 this.el.dom.removeAttribute('xtype');
 224
 225                 this.initEvents();
 226             }
 227         }
 228         else {
 229             var cfg = Roo.apply({},  this.getAutoCreate());
 230
 231             cfg.id = this.id || Roo.id();
 232
 233             if (this.cls) {
 234                 cfg.cls = (typeof(cfg.cls) == 'undefined' ? this.cls : cfg.cls) + ' ' + this.cls;
 235             }
 236
 237             if (this.style) { // fixme needs to support more complex style data.
 238                 cfg.style = (typeof(cfg.style) == 'undefined' ? this.style : cfg.style) + '; ' + this.style;
 239             }
 240
 241             this.el = ct.createChild(cfg, position);
 242
 243             this.initEvents();
 244         }
 245
 246         if (this.buttons.length) {
 247
 248             Roo.each(this.buttons, function(bb) {
 249
 250                 var btn = this.el.select('.roo-upload-cropbox-footer div.roo-upload-cropbox-btn-group').first().createChild(bb);
 251
 252                 btn.on('click', this.onFooterButtonClick.createDelegate(this, [bb.action], true));
 253
 254             }, this);
 255         }
 256
 257         if(this.loadMask){
 258             this.maskEl = this.el;
 259         }
 260     },
 261
 262     initEvents : function()
 263     {
 264         this.urlAPI = (window.createObjectURL && window) ||
 265                                 (window.URL && URL.revokeObjectURL && URL) ||
 266                                 (window.webkitURL && webkitURL);
 267
 268         this.bodyEl = this.el.select('.roo-upload-cropbox-body', true).first();
 269         this.bodyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 270
 271         this.selectorEl = this.el.select('.roo-upload-cropbox-selector', true).first();
 272         this.selectorEl.hide();
 273
 274         this.previewEl = this.el.select('.roo-upload-cropbox-preview', true).first();
 275         this.previewEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 276
 277         this.thumbEl = this.el.select('.roo-upload-cropbox-thumb', true).first();
 278         this.thumbEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 279         this.thumbEl.hide();
 280
 281         this.notifyEl = this.el.select('.roo-upload-cropbox-empty-notify', true).first();
 282         this.notifyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 283
 284         this.errorEl = this.el.select('.roo-upload-cropbox-error-notify', true).first();
 285         this.errorEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 286         this.errorEl.hide();
 287
 288         this.footerEl = this.el.select('.roo-upload-cropbox-footer', true).first();
 289         this.footerEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 290         this.footerEl.hide();
 291
 292         this.setThumbBoxSize();
 293
 294         this.bind();
 295
 296         this.resize();
 297
 298         this.fireEvent('initial', this);
 299     },
 300
 301     bind : function()
 302     {
 303         var _this = this;
 304
 305         window.addEventListener("resize", function() { _this.resize(); } );
 306
 307         this.bodyEl.on('click', this.beforeSelectFile, this);
 308
 309         if(Roo.isTouch){
 310             this.bodyEl.on('touchstart', this.onTouchStart, this);
 311             this.bodyEl.on('touchmove', this.onTouchMove, this);
 312             this.bodyEl.on('touchend', this.onTouchEnd, this);
 313         }
 314
 315         if(!Roo.isTouch){
 316             this.bodyEl.on('mousedown', this.onMouseDown, this);
 317             this.bodyEl.on('mousemove', this.onMouseMove, this);
 318             var mousewheel = (/Firefox/i.test(navigator.userAgent))? 'DOMMouseScroll' : 'mousewheel';
 319             this.bodyEl.on(mousewheel, this.onMouseWheel, this);
 320             Roo.get(document).on('mouseup', this.onMouseUp, this);
 321         }
 322
 323         this.selectorEl.on('change', this.onFileSelected, this);
 324     },
 325
 326     reset : function()
 327     {
 328         this.scale = 0;
 329         this.baseScale = 1;
 330         this.rotate = 0;
 331         this.baseRotate = 1;
 332         this.dragable = false;
 333         this.pinching = false;
 334         this.mouseX = 0;
 335         this.mouseY = 0;
 336         this.cropData = false;
 337         this.notifyEl.dom.innerHTML = this.emptyText;
 338
 339         // this.selectorEl.dom.value = '';
 340
 341     },
 342
 343     resize : function()
 344     {
 345         if(this.fireEvent('resize', this) != false){
 346             this.setThumbBoxPosition();
 347             this.setCanvasPosition();
 348         }
 349     },
 350
 351     onFooterButtonClick : function(e, el, o, type)
 352     {
 353         switch (type) {
 354             case 'rotate-left' :
 355                 this.onRotateLeft(e);
 356                 break;
 357             case 'rotate-right' :
 358                 this.onRotateRight(e);
 359                 break;
 360             case 'picture' :
 361                 this.beforeSelectFile(e);
 362                 break;
 363             case 'trash' :
 364                 this.trash(e);
 365                 break;
 366             case 'crop' :
 367                 this.crop(e);
 368                 break;
 369             case 'download' :
 370                 this.download(e);
 371                 break;
 372             default :
 373                 break;
 374         }
 375
 376         this.fireEvent('footerbuttonclick', this, type);
 377     },
 378
 379     beforeSelectFile : function(e)
 380     {
 381         e.preventDefault();
 382
 383         if(this.fireEvent('beforeselectfile', this) != false){
 384             this.selectorEl.dom.click();
 385         }
 386     },
 387
 388     onFileSelected : function(e)
 389     {
 390         console.log("ON FILE SELECTED");
 391         e.preventDefault();
 392
 393         if(typeof(this.selectorEl.dom.files) == 'undefined' || !this.selectorEl.dom.files.length){
 394             return;
 395         }
 396
 397         var file = this.selectorEl.dom.files[0];
 398
 399         if(this.fireEvent('inspect', this, file) != false){
 400             this.prepare(file);
 401         }
 402
 403     },
 404
 405     trash : function(e)
 406     {
 407         this.fireEvent('trash', this);
 408     },
 409
 410     download : function(e)
 411     {
 412         this.fireEvent('download', this);
 413     },
 414
 415     loadCanvas : function(src)
 416     {
 417         if(this.fireEvent('beforeloadcanvas', this, src) != false){
 418
 419             this.reset();
 420
 421             this.imageEl = document.createElement('img');
 422
 423             var _this = this;
 424
 425             this.imageEl.addEventListener("load", function(){ _this.onLoadCanvas(); });
 426
 427             this.imageEl.src = src;
 428         }
 429     },
 430
 431     onLoadCanvas : function()
 432     {
 433         this.imageEl.OriginWidth = this.imageEl.naturalWidth || this.imageEl.width;
 434         this.imageEl.OriginHeight = this.imageEl.naturalHeight || this.imageEl.height;
 435
 436         if(this.fireEvent('loadcanvas', this, this.imageEl) != false){
 437
 438             this.bodyEl.un('click', this.beforeSelectFile, this);
 439
 440             this.notifyEl.hide();
 441             this.thumbEl.show();
 442             this.footerEl.show();
 443
 444             this.baseRotateLevel();
 445
 446             if(this.isDocument){
 447                 this.setThumbBoxSize();
 448             }
 449
 450             this.setThumbBoxPosition();
 451
 452             this.baseScaleLevel();
 453
 454             this.draw();
 455
 456             this.resize();
 457
 458             this.canvasLoaded = true;
 459
 460         }
 461
 462         if(this.loadMask){
 463             this.maskEl.unmask();
 464         }
 465
 466     },
 467
 468     setCanvasPosition : function()
 469     {
 470         if(!this.canvasEl){
 471             return;
 472         }
 473
 474         var pw = Math.ceil((this.bodyEl.getWidth() - this.canvasEl.width) / 2);
 475         var ph = Math.ceil((this.bodyEl.getHeight() - this.canvasEl.height) / 2);
 476
 477         this.previewEl.setLeft(pw);
 478         this.previewEl.setTop(ph);
 479
 480     },
 481
 482     onMouseDown : function(e)
 483     {
 484         e.stopEvent();
 485
 486         this.dragable = true;
 487         this.pinching = false;
 488
 489         if(this.isDocument && (this.canvasEl.width < this.thumbEl.getWidth() || this.canvasEl.height < this.thumbEl.getHeight())){
 490             this.dragable = false;
 491             return;
 492         }
 493
 494         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 495         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 496
 497     },
 498
 499     onMouseMove : function(e)
 500     {
 501         e.stopEvent();
 502
 503         if(!this.canvasLoaded){
 504             return;
 505         }
 506
 507         if (!this.dragable){
 508             return;
 509         }
 510
 511         var minX = Math.ceil(this.thumbEl.getLeft(true));
 512         var minY = Math.ceil(this.thumbEl.getTop(true));
 513
 514         var maxX = Math.ceil(minX + this.thumbEl.getWidth() - this.canvasEl.width);
 515         var maxY = Math.ceil(minY + this.thumbEl.getHeight() - this.canvasEl.height);
 516
 517         var x = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 518         var y = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 519
 520         x = x - this.mouseX;
 521         y = y - this.mouseY;
 522
 523         var bgX = Math.ceil(x + this.previewEl.getLeft(true));
 524         var bgY = Math.ceil(y + this.previewEl.getTop(true));
 525
 526         bgX = (minX < bgX) ? minX : ((maxX > bgX) ? maxX : bgX);
 527         bgY = (minY < bgY) ? minY : ((maxY > bgY) ? maxY : bgY);
 528
 529         this.previewEl.setLeft(bgX);
 530         this.previewEl.setTop(bgY);
 531
 532         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 533         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 534     },
 535
 536     onMouseUp : function(e)
 537     {
 538         e.stopEvent();
 539
 540         this.dragable = false;
 541     },
 542
 543     onMouseWheel : function(e)
 544     {
 545         e.stopEvent();
 546
 547         this.startScale = this.scale;
 548         this.scale = (e.getWheelDelta() == 1) ? (this.scale + 1) : (this.scale - 1);
 549         if(!this.zoomable()){
 550             this.scale = this.startScale;
 551             return;
 552         }
 553
 554         this.draw();
 555
 556         return;
 557     },
 558
 559     zoomable : function()
 560     {
 561         var minScale = this.thumbEl.getWidth() / this.minWidth;
 562
 563         if(this.minWidth < this.minHeight){
 564             minScale = this.thumbEl.getHeight() / this.minHeight;
 565         }
 566
 567         var width = Math.ceil(this.imageEl.OriginWidth * this.getScaleLevel() / minScale);
 568         var height = Math.ceil(this.imageEl.OriginHeight * this.getScaleLevel() / minScale);
 569
 570         var maxWidth = this.imageEl.OriginWidth;
 571         var maxHeight = this.imageEl.OriginHeight;
 572
 573         if(
 574                 this.isDocument &&
 575                 (this.rotate == 0 || this.rotate == 180) &&
 576                 (
 577                     width > this.imageEl.OriginWidth ||
 578                     height > this.imageEl.OriginHeight ||
 579                     (width < this.minWidth && height < this.minHeight)
 580                 )
 581         ){
 582             return false;
 583         }
 584
 585         if(
 586                 this.isDocument &&
 587                 (this.rotate == 90 || this.rotate == 270) &&
 588                 (
 589                     width > this.imageEl.OriginWidth ||
 590                     height > this.imageEl.OriginHeight ||
 591                     (width < this.minHeight && height < this.minWidth)
 592                 )
 593         ){
 594             return false;
 595         }
 596
 597         if(
 598                 !this.isDocument &&
 599                 (this.rotate == 0 || this.rotate == 180) &&
 600                 (
 601                     width < this.minWidth ||
 602                     height < this.minHeight ||
 603                     width > maxWidth ||
 604                     height > maxHeight
 605                 )
 606         ){
 607             return false;
 608         }
 609
 610         if(
 611                 !this.isDocument &&
 612                 (this.rotate == 90 || this.rotate == 270) &&
 613                 (
 614                     width < this.minHeight ||
 615                     width > this.imageEl.OriginWidth ||
 616                     height < this.minWidth ||
 617                     height > this.imageEl.OriginHeight
 618                 )
 619         ){
 620             return false;
 621         }
 622
 623         return true;
 624
 625     },
 626
 627     onRotateLeft : function(e)
 628     {
 629         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 630
 631             var minScale = this.thumbEl.getWidth() / this.minWidth;
 632
 633             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 634             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 635
 636             this.startScale = this.scale;
 637
 638             while (this.getScaleLevel() < minScale){
 639
 640                 this.scale = this.scale + 1;
 641
 642                 if(!this.zoomable()){
 643                     break;
 644                 }
 645
 646                 if(
 647                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 648                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 649                 ){
 650                     continue;
 651                 }
 652
 653                 this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 654
 655                 this.draw();
 656
 657                 return;
 658             }
 659
 660             this.scale = this.startScale;
 661
 662             this.onRotateFail();
 663
 664             return false;
 665         }
 666
 667         this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 668
 669         if(this.isDocument){
 670             this.setThumbBoxSize();
 671             this.setThumbBoxPosition();
 672             this.setCanvasPosition();
 673         }
 674
 675         this.draw();
 676
 677         this.fireEvent('rotate', this, 'left');
 678
 679     },
 680
 681     onRotateRight : function(e)
 682     {
 683         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 684
 685             var minScale = this.thumbEl.getWidth() / this.minWidth;
 686
 687             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 688             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 689
 690             this.startScale = this.scale;
 691
 692             while (this.getScaleLevel() < minScale){
 693
 694                 this.scale = this.scale + 1;
 695
 696                 if(!this.zoomable()){
 697                     break;
 698                 }
 699
 700                 if(
 701                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 702                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 703                 ){
 704                     continue;
 705                 }
 706
 707                 this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 708
 709                 this.draw();
 710
 711                 return;
 712             }
 713
 714             this.scale = this.startScale;
 715
 716             this.onRotateFail();
 717
 718             return false;
 719         }
 720
 721         this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 722
 723         if(this.isDocument){
 724             this.setThumbBoxSize();
 725             this.setThumbBoxPosition();
 726             this.setCanvasPosition();
 727         }
 728
 729         this.draw();
 730
 731         this.fireEvent('rotate', this, 'right');
 732     },
 733
 734     onRotateFail : function()
 735     {
 736         this.errorEl.show(true);
 737
 738         var _this = this;
 739
 740         (function() { _this.errorEl.hide(true); }).defer(this.errorTimeout);
 741     },
 742
 743     draw : function()
 744     {
 745         this.previewEl.dom.innerHTML = '';
 746
 747         var canvasEl = document.createElement("canvas");
 748
 749         var contextEl = canvasEl.getContext("2d");
 750
 751         canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 752         canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 753         var center = this.imageEl.OriginWidth / 2;
 754
 755         if(this.imageEl.OriginWidth < this.imageEl.OriginHeight){
 756             canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 757             canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 758             center = this.imageEl.OriginHeight / 2;
 759         }
 760
 761         contextEl.scale(this.getScaleLevel(), this.getScaleLevel());
 762
 763         contextEl.translate(center, center);
 764         contextEl.rotate(this.rotate * Math.PI / 180);
 765
 766         contextEl.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 767
 768         this.canvasEl = document.createElement("canvas");
 769
 770         this.contextEl = this.canvasEl.getContext("2d");
 771
 772         switch (this.rotate) {
 773             case 0 :
 774
 775                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 776                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 777
 778                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 779
 780                 break;
 781             case 90 :
 782
 783                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 784                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 785
 786                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 787                     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);
 788                     break;
 789                 }
 790
 791                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 792
 793                 break;
 794             case 180 :
 795
 796                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 797                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 798
 799                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 800                     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);
 801                     break;
 802                 }
 803
 804                 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);
 805
 806                 break;
 807             case 270 :
 808
 809                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 810                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 811
 812                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 813                     this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 814                     break;
 815                 }
 816
 817                 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);
 818
 819                 break;
 820             default :
 821                 break;
 822         }
 823
 824         this.previewEl.appendChild(this.canvasEl);
 825
 826         this.setCanvasPosition();
 827     },
 828
 829     crop : function()
 830     {
 831         if(!this.canvasLoaded){
 832             return;
 833         }
 834
 835         var imageCanvas = document.createElement("canvas");
 836
 837         var imageContext = imageCanvas.getContext("2d");
 838
 839         imageCanvas.width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 840         imageCanvas.height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 841
 842         var center = imageCanvas.width / 2;
 843
 844         imageContext.translate(center, center);
 845
 846         imageContext.rotate(this.rotate * Math.PI / 180);
 847
 848         imageContext.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 849
 850         var canvas = document.createElement("canvas");
 851
 852         var context = canvas.getContext("2d");
 853
 854         canvas.width = this.minWidth;
 855         canvas.height = this.minHeight;
 856
 857         switch (this.rotate) {
 858             case 0 :
 859
 860                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 861                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 862
 863                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 864                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 865
 866                 var targetWidth = this.minWidth - 2 * x;
 867                 var targetHeight = this.minHeight - 2 * y;
 868
 869                 var scale = 1;
 870
 871                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 872                     scale = targetWidth / width;
 873                 }
 874
 875                 if(x > 0 && y == 0){
 876                     scale = targetHeight / height;
 877                 }
 878
 879                 if(x > 0 && y > 0){
 880                     scale = targetWidth / width;
 881
 882                     if(width < height){
 883                         scale = targetHeight / height;
 884                     }
 885                 }
 886
 887                 context.scale(scale, scale);
 888
 889                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 890                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 891
 892                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 893                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 894
 895                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 896
 897                 break;
 898             case 90 :
 899
 900                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 901                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 902
 903                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 904                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 905
 906                 var targetWidth = this.minWidth - 2 * x;
 907                 var targetHeight = this.minHeight - 2 * y;
 908
 909                 var scale = 1;
 910
 911                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 912                     scale = targetWidth / width;
 913                 }
 914
 915                 if(x > 0 && y == 0){
 916                     scale = targetHeight / height;
 917                 }
 918
 919                 if(x > 0 && y > 0){
 920                     scale = targetWidth / width;
 921
 922                     if(width < height){
 923                         scale = targetHeight / height;
 924                     }
 925                 }
 926
 927                 context.scale(scale, scale);
 928
 929                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 930                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 931
 932                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 933                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 934
 935                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 936
 937                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 938
 939                 break;
 940             case 180 :
 941
 942                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 943                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 944
 945                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 946                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 947
 948                 var targetWidth = this.minWidth - 2 * x;
 949                 var targetHeight = this.minHeight - 2 * y;
 950
 951                 var scale = 1;
 952
 953                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 954                     scale = targetWidth / width;
 955                 }
 956
 957                 if(x > 0 && y == 0){
 958                     scale = targetHeight / height;
 959                 }
 960
 961                 if(x > 0 && y > 0){
 962                     scale = targetWidth / width;
 963
 964                     if(width < height){
 965                         scale = targetHeight / height;
 966                     }
 967                 }
 968
 969                 context.scale(scale, scale);
 970
 971                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 972                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 973
 974                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 975                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 976
 977                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
 978                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 979
 980                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 981
 982                 break;
 983             case 270 :
 984
 985                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 986                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 987
 988                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 989                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 990
 991                 var targetWidth = this.minWidth - 2 * x;
 992                 var targetHeight = this.minHeight - 2 * y;
 993
 994                 var scale = 1;
 995
 996                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 997                     scale = targetWidth / width;
 998                 }
 999
1000                 if(x > 0 && y == 0){
1001                     scale = targetHeight / height;
1002                 }
1003
1004                 if(x > 0 && y > 0){
1005                     scale = targetWidth / width;
1006
1007                     if(width < height){
1008                         scale = targetHeight / height;
1009                     }
1010                 }
1011
1012                 context.scale(scale, scale);
1013
1014                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1015                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1016
1017                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1018                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1019
1020                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1021
1022                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1023
1024                 break;
1025             default :
1026                 break;
1027         }
1028
1029         this.cropData = canvas.toDataURL(this.cropType);
1030
1031         if(this.fireEvent('crop', this, this.cropData) !== false){
1032             this.process(this.file, this.cropData);
1033         }
1034
1035         return;
1036
1037     },
1038
1039     setThumbBoxSize : function()
1040     {
1041         var width, height;
1042
1043         if(this.isDocument && typeof(this.imageEl) != 'undefined'){
1044             width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.max(this.minWidth, this.minHeight) : Math.min(this.minWidth, this.minHeight);
1045             height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.min(this.minWidth, this.minHeight) : Math.max(this.minWidth, this.minHeight);
1046
1047             this.minWidth = width;
1048             this.minHeight = height;
1049
1050             if(this.rotate == 90 || this.rotate == 270){
1051                 this.minWidth = height;
1052                 this.minHeight = width;
1053             }
1054         }
1055
1056         height = 300;
1057         width = Math.ceil(this.minWidth * height / this.minHeight);
1058
1059         if(this.minWidth > this.minHeight){
1060             width = 300;
1061             height = Math.ceil(this.minHeight * width / this.minWidth);
1062         }
1063
1064         this.thumbEl.setStyle({
1065             width : width + 'px',
1066             height : height + 'px'
1067         });
1068
1069         return;
1070
1071     },
1072
1073     setThumbBoxPosition : function()
1074     {
1075         var x = Math.ceil((this.bodyEl.getWidth() - this.thumbEl.getWidth()) / 2 );
1076         var y = Math.ceil((this.bodyEl.getHeight() - this.thumbEl.getHeight()) / 2);
1077
1078         this.thumbEl.setLeft(x);
1079         this.thumbEl.setTop(y);
1080
1081     },
1082
1083     baseRotateLevel : function()
1084     {
1085         this.baseRotate = 1;
1086
1087         if(
1088                 typeof(this.exif) != 'undefined' &&
1089                 typeof(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != 'undefined' &&
1090                 [1, 3, 6, 8].indexOf(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != -1
1091         ){
1092             this.baseRotate = this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']];
1093         }
1094
1095         this.rotate = Roo.dialog.UploadCropbox['Orientation'][this.baseRotate];
1096
1097     },
1098
1099     baseScaleLevel : function()
1100     {
1101         var width, height;
1102
1103         if(this.isDocument){
1104
1105             if(this.baseRotate == 6 || this.baseRotate == 8){
1106
1107                 height = this.thumbEl.getHeight();
1108                 this.baseScale = height / this.imageEl.OriginWidth;
1109
1110                 if(this.imageEl.OriginHeight * this.baseScale > this.thumbEl.getWidth()){
1111                     width = this.thumbEl.getWidth();
1112                     this.baseScale = width / this.imageEl.OriginHeight;
1113                 }
1114
1115                 return;
1116             }
1117
1118             height = this.thumbEl.getHeight();
1119             this.baseScale = height / this.imageEl.OriginHeight;
1120
1121             if(this.imageEl.OriginWidth * this.baseScale > this.thumbEl.getWidth()){
1122                 width = this.thumbEl.getWidth();
1123                 this.baseScale = width / this.imageEl.OriginWidth;
1124             }
1125
1126             return;
1127         }
1128
1129         if(this.baseRotate == 6 || this.baseRotate == 8){
1130
1131             width = this.thumbEl.getHeight();
1132             this.baseScale = width / this.imageEl.OriginHeight;
1133
1134             if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getWidth()){
1135                 height = this.thumbEl.getWidth();
1136                 this.baseScale = height / this.imageEl.OriginHeight;
1137             }
1138
1139             if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1140                 height = this.thumbEl.getWidth();
1141                 this.baseScale = height / this.imageEl.OriginHeight;
1142
1143                 if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getHeight()){
1144                     width = this.thumbEl.getHeight();
1145                     this.baseScale = width / this.imageEl.OriginWidth;
1146                 }
1147             }
1148
1149             return;
1150         }
1151
1152         width = this.thumbEl.getWidth();
1153         this.baseScale = width / this.imageEl.OriginWidth;
1154
1155         if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getHeight()){
1156             height = this.thumbEl.getHeight();
1157             this.baseScale = height / this.imageEl.OriginHeight;
1158         }
1159
1160         if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1161
1162             height = this.thumbEl.getHeight();
1163             this.baseScale = height / this.imageEl.OriginHeight;
1164
1165             if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getWidth()){
1166                 width = this.thumbEl.getWidth();
1167                 this.baseScale = width / this.imageEl.OriginWidth;
1168             }
1169
1170         }
1171
1172         return;
1173     },
1174
1175     getScaleLevel : function()
1176     {
1177         return this.baseScale * Math.pow(1.02, this.scale);
1178     },
1179
1180     onTouchStart : function(e)
1181     {
1182         if(!this.canvasLoaded){
1183             this.beforeSelectFile(e);
1184             return;
1185         }
1186
1187         var touches = e.browserEvent.touches;
1188
1189         if(!touches){
1190             return;
1191         }
1192
1193         if(touches.length == 1){
1194             this.onMouseDown(e);
1195             return;
1196         }
1197
1198         if(touches.length != 2){
1199             return;
1200         }
1201
1202         var coords = [];
1203
1204         for(var i = 0, finger; finger = touches[i]; i++){
1205             coords.push(finger.pageX, finger.pageY);
1206         }
1207
1208         var x = Math.pow(coords[0] - coords[2], 2);
1209         var y = Math.pow(coords[1] - coords[3], 2);
1210
1211         this.startDistance = Math.sqrt(x + y);
1212
1213         this.startScale = this.scale;
1214
1215         this.pinching = true;
1216         this.dragable = false;
1217
1218     },
1219
1220     onTouchMove : function(e)
1221     {
1222         if(!this.pinching && !this.dragable){
1223             return;
1224         }
1225
1226         var touches = e.browserEvent.touches;
1227
1228         if(!touches){
1229             return;
1230         }
1231
1232         if(this.dragable){
1233             this.onMouseMove(e);
1234             return;
1235         }
1236
1237         var coords = [];
1238
1239         for(var i = 0, finger; finger = touches[i]; i++){
1240             coords.push(finger.pageX, finger.pageY);
1241         }
1242
1243         var x = Math.pow(coords[0] - coords[2], 2);
1244         var y = Math.pow(coords[1] - coords[3], 2);
1245
1246         this.endDistance = Math.sqrt(x + y);
1247
1248         this.scale = this.startScale + Math.floor(Math.log(this.endDistance / this.startDistance) / Math.log(1.1));
1249
1250         if(!this.zoomable()){
1251             this.scale = this.startScale;
1252             return;
1253         }
1254
1255         this.draw();
1256
1257     },
1258
1259     onTouchEnd : function(e)
1260     {
1261         this.pinching = false;
1262         this.dragable = false;
1263
1264     },
1265
1266     process : function(file, crop)
1267     {
1268         if(this.loadMask){
1269             this.maskEl.mask(this.loadingText);
1270         }
1271
1272         this.xhr = new XMLHttpRequest();
1273
1274         file.xhr = this.xhr;
1275
1276         this.xhr.open(this.method, this.url, true);
1277
1278         var headers = {
1279             "Accept": "application/json",
1280             "Cache-Control": "no-cache",
1281             "X-Requested-With": "XMLHttpRequest"
1282         };
1283
1284         for (var headerName in headers) {
1285             var headerValue = headers[headerName];
1286             if (headerValue) {
1287                 this.xhr.setRequestHeader(headerName, headerValue);
1288             }
1289         }
1290
1291         var _this = this;
1292
1293         this.xhr.onload = function()
1294         {
1295             _this.xhrOnLoad(_this.xhr);
1296         }
1297
1298         this.xhr.onerror = function()
1299         {
1300             _this.xhrOnError(_this.xhr);
1301         }
1302
1303         var formData = new FormData();
1304
1305         formData.append('returnHTML', 'NO');
1306
1307         if(crop){
1308             formData.append('crop', crop);
1309         }
1310
1311         if(typeof(file) != 'undefined' && (typeof(file.id) == 'undefined' || file.id * 1 < 1)){
1312             formData.append(this.paramName, file, file.name);
1313         }
1314
1315         if(typeof(file.filename) != 'undefined'){
1316             formData.append('filename', file.filename);
1317         }
1318
1319         if(typeof(file.mimetype) != 'undefined'){
1320             formData.append('mimetype', file.mimetype);
1321         }
1322
1323         if(this.fireEvent('arrange', this, formData) != false){
1324             this.xhr.send(formData);
1325         };
1326     },
1327
1328     xhrOnLoad : function(xhr)
1329     {
1330         if(this.loadMask){
1331             this.maskEl.unmask();
1332         }
1333
1334         if (xhr.readyState !== 4) {
1335             this.fireEvent('exception', this, xhr);
1336             return;
1337         }
1338
1339         var response = Roo.decode(xhr.responseText);
1340
1341         if(!response.success){
1342             this.fireEvent('exception', this, xhr);
1343             return;
1344         }
1345
1346         var response = Roo.decode(xhr.responseText);
1347
1348         this.fireEvent('upload', this, response);
1349
1350     },
1351
1352     xhrOnError : function()
1353     {
1354         if(this.loadMask){
1355             this.maskEl.unmask();
1356         }
1357
1358         Roo.log('xhr on error');
1359
1360         var response = Roo.decode(xhr.responseText);
1361
1362         Roo.log(response);
1363
1364     },
1365
1366     prepare : function(file)
1367     {
1368         if(this.loadMask){
1369             this.maskEl.mask(this.loadingText);
1370         }
1371
1372         this.file = false;
1373         this.exif = {};
1374
1375         if(typeof(file) === 'string'){
1376             this.loadCanvas(file);
1377             return;
1378         }
1379
1380         if(!file || !this.urlAPI){
1381             return;
1382         }
1383
1384         this.file = file;
1385         this.cropType = file.type;
1386
1387         var _this = this;
1388
1389         if(this.fireEvent('prepare', this, this.file) != false){
1390
1391             var reader = new FileReader();
1392
1393             reader.onload = function (e) {
1394                 if (e.target.error) {
1395                     Roo.log(e.target.error);
1396                     return;
1397                 }
1398
1399                 var buffer = e.target.result,
1400                     dataView = new DataView(buffer),
1401                     offset = 2,
1402                     maxOffset = dataView.byteLength - 4,
1403                     markerBytes,
1404                     markerLength;
1405
1406                 if (dataView.getUint16(0) === 0xffd8) {
1407                     while (offset < maxOffset) {
1408                         markerBytes = dataView.getUint16(offset);
1409
1410                         if ((markerBytes >= 0xffe0 && markerBytes <= 0xffef) || markerBytes === 0xfffe) {
1411                             markerLength = dataView.getUint16(offset + 2) + 2;
1412                             if (offset + markerLength > dataView.byteLength) {
1413                                 Roo.log('Invalid meta data: Invalid segment size.');
1414                                 break;
1415                             }
1416
1417                             if(markerBytes == 0xffe1){
1418                                 _this.parseExifData(
1419                                     dataView,
1420                                     offset,
1421                                     markerLength
1422                                 );
1423                             }
1424
1425                             offset += markerLength;
1426
1427                             continue;
1428                         }
1429
1430                         break;
1431                     }
1432
1433                 }
1434
1435                 var url = _this.urlAPI.createObjectURL(_this.file);
1436
1437                 _this.loadCanvas(url);
1438
1439                 return;
1440             }
1441
1442             reader.readAsArrayBuffer(this.file);
1443
1444         }
1445
1446     },
1447
1448     parseExifData : function(dataView, offset, length)
1449     {
1450         var tiffOffset = offset + 10,
1451             littleEndian,
1452             dirOffset;
1453
1454         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1455             // No Exif data, might be XMP data instead
1456             return;
1457         }
1458
1459         // Check for the ASCII code for "Exif" (0x45786966):
1460         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1461             // No Exif data, might be XMP data instead
1462             return;
1463         }
1464         if (tiffOffset + 8 > dataView.byteLength) {
1465             Roo.log('Invalid Exif data: Invalid segment size.');
1466             return;
1467         }
1468         // Check for the two null bytes:
1469         if (dataView.getUint16(offset + 8) !== 0x0000) {
1470             Roo.log('Invalid Exif data: Missing byte alignment offset.');
1471             return;
1472         }
1473         // Check the byte alignment:
1474         switch (dataView.getUint16(tiffOffset)) {
1475         case 0x4949:
1476             littleEndian = true;
1477             break;
1478         case 0x4D4D:
1479             littleEndian = false;
1480             break;
1481         default:
1482             Roo.log('Invalid Exif data: Invalid byte alignment marker.');
1483             return;
1484         }
1485         // Check for the TIFF tag marker (0x002A):
1486         if (dataView.getUint16(tiffOffset + 2, littleEndian) !== 0x002A) {
1487             Roo.log('Invalid Exif data: Missing TIFF marker.');
1488             return;
1489         }
1490         // Retrieve the directory offset bytes, usually 0x00000008 or 8 decimal:
1491         dirOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
1492
1493         this.parseExifTags(
1494             dataView,
1495             tiffOffset,
1496             tiffOffset + dirOffset,
1497             littleEndian
1498         );
1499     },
1500
1501     parseExifTags : function(dataView, tiffOffset, dirOffset, littleEndian)
1502     {
1503         var tagsNumber,
1504             dirEndOffset,
1505             i;
1506         if (dirOffset + 6 > dataView.byteLength) {
1507             Roo.log('Invalid Exif data: Invalid directory offset.');
1508             return;
1509         }
1510         tagsNumber = dataView.getUint16(dirOffset, littleEndian);
1511         dirEndOffset = dirOffset + 2 + 12 * tagsNumber;
1512         if (dirEndOffset + 4 > dataView.byteLength) {
1513             Roo.log('Invalid Exif data: Invalid directory size.');
1514             return;
1515         }
1516         for (i = 0; i < tagsNumber; i += 1) {
1517             this.parseExifTag(
1518                 dataView,
1519                 tiffOffset,
1520                 dirOffset + 2 + 12 * i, // tag offset
1521                 littleEndian
1522             );
1523         }
1524         // Return the offset to the next directory:
1525         return dataView.getUint32(dirEndOffset, littleEndian);
1526     },
1527
1528     parseExifTag : function (dataView, tiffOffset, offset, littleEndian)
1529     {
1530         var tag = dataView.getUint16(offset, littleEndian);
1531
1532         this.exif[tag] = this.getExifValue(
1533             dataView,
1534             tiffOffset,
1535             offset,
1536             dataView.getUint16(offset + 2, littleEndian), // tag type
1537             dataView.getUint32(offset + 4, littleEndian), // tag length
1538             littleEndian
1539         );
1540     },
1541
1542     getExifValue : function (dataView, tiffOffset, offset, type, length, littleEndian)
1543     {
1544         var tagType = Roo.dialog.UploadCropbox.exifTagTypes[type],
1545             tagSize,
1546             dataOffset,
1547             values,
1548             i,
1549             str,
1550             c;
1551
1552         if (!tagType) {
1553             Roo.log('Invalid Exif data: Invalid tag type.');
1554             return;
1555         }
1556
1557         tagSize = tagType.size * length;
1558         // Determine if the value is contained in the dataOffset bytes,
1559         // or if the value at the dataOffset is a pointer to the actual data:
1560         dataOffset = tagSize > 4 ?
1561                 tiffOffset + dataView.getUint32(offset + 8, littleEndian) : (offset + 8);
1562         if (dataOffset + tagSize > dataView.byteLength) {
1563             Roo.log('Invalid Exif data: Invalid data offset.');
1564             return;
1565         }
1566         if (length === 1) {
1567             return tagType.getValue(dataView, dataOffset, littleEndian);
1568         }
1569         values = [];
1570         for (i = 0; i < length; i += 1) {
1571             values[i] = tagType.getValue(dataView, dataOffset + i * tagType.size, littleEndian);
1572         }
1573
1574         if (tagType.ascii) {
1575             str = '';
1576             // Concatenate the chars:
1577             for (i = 0; i < values.length; i += 1) {
1578                 c = values[i];
1579                 // Ignore the terminating NULL byte(s):
1580                 if (c === '\u0000') {
1581                     break;
1582                 }
1583                 str += c;
1584             }
1585             return str;
1586         }
1587         return values;
1588     }
1589
1590 });
1591
1592 Roo.apply(Roo.dialog.UploadCropbox, {
1593     tags : {
1594         'Orientation': 0x0112
1595     },
1596
1597     Orientation: {
1598             1: 0, //'top-left',
1599 //            2: 'top-right',
1600             3: 180, //'bottom-right',
1601 //            4: 'bottom-left',
1602 //            5: 'left-top',
1603             6: 90, //'right-top',
1604 //            7: 'right-bottom',
1605             8: 270 //'left-bottom'
1606     },
1607
1608     exifTagTypes : {
1609         // byte, 8-bit unsigned int:
1610         1: {
1611             getValue: function (dataView, dataOffset) {
1612                 return dataView.getUint8(dataOffset);
1613             },
1614             size: 1
1615         },
1616         // ascii, 8-bit byte:
1617         2: {
1618             getValue: function (dataView, dataOffset) {
1619                 return String.fromCharCode(dataView.getUint8(dataOffset));
1620             },
1621             size: 1,
1622             ascii: true
1623         },
1624         // short, 16 bit int:
1625         3: {
1626             getValue: function (dataView, dataOffset, littleEndian) {
1627                 return dataView.getUint16(dataOffset, littleEndian);
1628             },
1629             size: 2
1630         },
1631         // long, 32 bit int:
1632         4: {
1633             getValue: function (dataView, dataOffset, littleEndian) {
1634                 return dataView.getUint32(dataOffset, littleEndian);
1635             },
1636             size: 4
1637         },
1638         // rational = two long values, first is numerator, second is denominator:
1639         5: {
1640             getValue: function (dataView, dataOffset, littleEndian) {
1641                 return dataView.getUint32(dataOffset, littleEndian) /
1642                     dataView.getUint32(dataOffset + 4, littleEndian);
1643             },
1644             size: 8
1645         },
1646         // slong, 32 bit signed int:
1647         9: {
1648             getValue: function (dataView, dataOffset, littleEndian) {
1649                 return dataView.getInt32(dataOffset, littleEndian);
1650             },
1651             size: 4
1652         },
1653         // srational, two slongs, first is numerator, second is denominator:
1654         10: {
1655             getValue: function (dataView, dataOffset, littleEndian) {
1656                 return dataView.getInt32(dataOffset, littleEndian) /
1657                     dataView.getInt32(dataOffset + 4, littleEndian);
1658             },
1659             size: 8
1660         }
1661     },
1662
1663     footer : {
1664         STANDARD : [
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-picture',
1680                 action : 'picture',
1681                 cn : [
1682                     {
1683                         tag : 'button',
1684                         cls : 'btn btn-default',
1685                         html : '<i class="fa fa-picture-o"></i>'
1686                     }
1687                 ]
1688             },
1689             {
1690                 tag : 'div',
1691                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1692                 action : 'rotate-right',
1693                 cn : [
1694                     {
1695                         tag : 'button',
1696                         cls : 'btn btn-default',
1697                         html : '<i class="fa fa-repeat"></i>'
1698                     }
1699                 ]
1700             }
1701         ],
1702         DOCUMENT : [
1703             {
1704                 tag : 'div',
1705                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1706                 action : 'rotate-left',
1707                 cn : [
1708                     {
1709                         tag : 'button',
1710                         cls : 'btn btn-default',
1711                         html : '<i class="fa fa-undo"></i>'
1712                     }
1713                 ]
1714             },
1715             {
1716                 tag : 'div',
1717                 cls : 'btn-group roo-upload-cropbox-download',
1718                 action : 'download',
1719                 cn : [
1720                     {
1721                         tag : 'button',
1722                         cls : 'btn btn-default',
1723                         html : '<i class="fa fa-download"></i>'
1724                     }
1725                 ]
1726             },
1727             {
1728                 tag : 'div',
1729                 cls : 'btn-group roo-upload-cropbox-crop',
1730                 action : 'crop',
1731                 cn : [
1732                     {
1733                         tag : 'button',
1734                         cls : 'btn btn-default',
1735                         html : '<i class="fa fa-crop"></i>'
1736                     }
1737                 ]
1738             },
1739             {
1740                 tag : 'div',
1741                 cls : 'btn-group roo-upload-cropbox-trash',
1742                 action : 'trash',
1743                 cn : [
1744                     {
1745                         tag : 'button',
1746                         cls : 'btn btn-default',
1747                         html : '<i class="fa fa-trash"></i>'
1748                     }
1749                 ]
1750             },
1751             {
1752                 tag : 'div',
1753                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1754                 action : 'rotate-right',
1755                 cn : [
1756                     {
1757                         tag : 'button',
1758                         cls : 'btn btn-default',
1759                         html : '<i class="fa fa-repeat"></i>'
1760                     }
1761                 ]
1762             }
1763         ],
1764         ROTATOR : [
1765             {
1766                 tag : 'div',
1767                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1768                 action : 'rotate-left',
1769                 cn : [
1770                     {
1771                         tag : 'button',
1772                         cls : 'btn btn-default',
1773                         html : '<i class="fa fa-undo"></i>'
1774                     }
1775                 ]
1776             },
1777             {
1778                 tag : 'div',
1779                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1780                 action : 'rotate-right',
1781                 cn : [
1782                     {
1783                         tag : 'button',
1784                         cls : 'btn btn-default',
1785                         html : '<i class="fa fa-repeat"></i>'
1786                     }
1787                 ]
1788             }
1789         ]
1790     }
1791 });