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 {Number} outputMaxWidth default 1200
  16  * @cfg {Array} buttons default ['rotateLeft', 'pictureBtn', 'rotateRight']
  17  * @cfg {Boolean} isDocument (true|false) default false
  18  * @cfg {String} url action url
  19  * @cfg {String} paramName default 'imageUpload'
  20  * @cfg {String} method default POST
  21  * @cfg {Boolean} loadMask (true|false) default true
  22  * @cfg {Boolean} loadingText default 'Loading...'
  23  *
  24  * @constructor
  25  * Create a new UploadCropbox
  26  * @param {Object} config The config object
  27  */
  28
  29  Roo.dialog.UploadCropbox = function(config){
  30     Roo.dialog.UploadCropbox.superclass.constructor.call(this, config);
  31
  32     this.addEvents({
  33         /**
  34          * @event beforeselectfile
  35          * Fire before select file
  36          * @param {Roo.dialog.UploadCropbox} this
  37          */
  38         "beforeselectfile" : true,
  39         /**
  40          * @event initial
  41          * Fire after initEvent
  42          * @param {Roo.dialog.UploadCropbox} this
  43          */
  44         "initial" : true,
  45         /**
  46          * @event crop
  47          * Fire after initEvent
  48          * @param {Roo.dialog.UploadCropbox} this
  49          * @param {String} data
  50          */
  51         "crop" : true,
  52         /**
  53          * @event prepare
  54          * Fire when preparing the file data
  55          * @param {Roo.dialog.UploadCropbox} this
  56          * @param {Object} file
  57          */
  58         "prepare" : true,
  59         /**
  60          * @event exception
  61          * Fire when get exception
  62          * @param {Roo.dialog.UploadCropbox} this
  63          * @param {XMLHttpRequest} xhr
  64          */
  65         "exception" : true,
  66         /**
  67          * @event beforeloadcanvas
  68          * Fire before load the canvas
  69          * @param {Roo.dialog.UploadCropbox} this
  70          * @param {String} src
  71          */
  72         "beforeloadcanvas" : true,
  73         /**
  74          * @event trash
  75          * Fire when trash image
  76          * @param {Roo.dialog.UploadCropbox} this
  77          */
  78         "trash" : true,
  79         /**
  80          * @event download
  81          * Fire when download the image
  82          * @param {Roo.dialog.UploadCropbox} this
  83          */
  84         "download" : true,
  85         /**
  86          * @event footerbuttonclick
  87          * Fire when footerbuttonclick
  88          * @param {Roo.dialog.UploadCropbox} this
  89          * @param {String} type
  90          */
  91         "footerbuttonclick" : true,
  92         /**
  93          * @event resize
  94          * Fire when resize
  95          * @param {Roo.dialog.UploadCropbox} this
  96          */
  97         "resize" : true,
  98         /**
  99          * @event rotate
 100          * Fire when rotate the image
 101          * @param {Roo.dialog.UploadCropbox} this
 102          * @param {String} pos
 103          */
 104         "rotate" : true,
 105         /**
 106          * @event inspect
 107          * Fire when inspect the file
 108          * @param {Roo.dialog.UploadCropbox} this
 109          * @param {Object} file
 110          */
 111         "inspect" : true,
 112         /**
 113          * @event beforeupload
 114          * Fire before xhr upload the file
 115          * @param {Roo.dialog.UploadCropbox} this
 116          * @param {Object} formData
 117          */
 118          "beforeupload" : true,
 119         /**
 120          * @event upload
 121          * Fire when xhr upload the file
 122          * @param {Roo.dialog.UploadCropbox} this
 123          * @param {Object} data
 124          */
 125         "upload" : true,
 126         /**
 127          * @event arrange
 128          * Fire when arrange the file data
 129          * @param {Roo.dialog.UploadCropbox} this
 130          * @param {Object} formData
 131          */
 132         "arrange" : true,
 133         /**
 134          * @event loadcanvas
 135          * Fire after load the canvas
 136          * @param {Roo.dialog.UploadCropbox}
 137          * @param {Object} imgEl
 138          */
 139         "loadcanvas" : true
 140     });
 141
 142     this.buttons = this.buttons || Roo.dialog.UploadCropbox.footer.STANDARD;
 143 };
 144
 145 Roo.extend(Roo.dialog.UploadCropbox, Roo.Component,  {
 146
 147     emptyText : 'Click to upload image',
 148     rotateNotify : 'Image is too small to rotate',
 149     errorTimeout : 3000,
 150     scale : 0,
 151     baseScale : 1,
 152     rotate : 0,
 153     dragable : false,
 154     pinching : false,
 155     mouseX : 0,
 156     mouseY : 0,
 157     cropData : false,
 158     minWidth : 300,
 159     minHeight : 300,
 160     outputMaxWidth : 1200,
 161     file : false,
 162     exif : {},
 163     baseRotate : 1,
 164     cropType : 'image/jpeg',
 165     buttons : false,
 166     canvasLoaded : false,
 167     isDocument : false,
 168     method : 'POST',
 169     paramName : 'imageUpload',
 170     loadMask : true,
 171     loadingText : 'Loading...',
 172     maskEl : false,
 173
 174     getAutoCreate : function()
 175     {
 176         var cfg = {
 177             tag : 'div',
 178             cls : 'roo-upload-cropbox',
 179             cn : [
 180                 {
 181                     tag : 'input',
 182                     cls : 'roo-upload-cropbox-selector',
 183                     type : 'file'
 184                 },
 185                 {
 186                     tag : 'div',
 187                     cls : 'roo-upload-cropbox-body',
 188                     style : 'cursor:pointer',
 189                     cn : [
 190                         {
 191                             tag : 'div',
 192                             cls : 'roo-upload-cropbox-preview'
 193                         },
 194                         {
 195                             tag : 'div',
 196                             cls : 'roo-upload-cropbox-thumb'
 197                         },
 198                         {
 199                             tag : 'div',
 200                             cls : 'roo-upload-cropbox-empty-notify',
 201                             html : this.emptyText
 202                         },
 203                         {
 204                             tag : 'div',
 205                             cls : 'roo-upload-cropbox-error-notify alert alert-danger',
 206                             html : this.rotateNotify
 207                         }
 208                     ]
 209                 },
 210                 {
 211                     tag : 'div',
 212                     cls : 'roo-upload-cropbox-footer',
 213                     cn : {
 214                         tag : 'div',
 215                         cls : 'btn-group btn-group-justified roo-upload-cropbox-btn-group',
 216                         cn : []
 217                     }
 218                 }
 219             ]
 220         };
 221
 222         return cfg;
 223     },
 224
 225     onRender : function(ct, position)
 226     {
 227         Roo.dialog.UploadCropbox.superclass.onRender.call(this, ct, position);
 228
 229         if(this.el){
 230             if (this.el.attr('xtype')) {
 231                 this.el.attr('xtypex', this.el.attr('xtype'));
 232                 this.el.dom.removeAttribute('xtype');
 233
 234                 this.initEvents();
 235             }
 236         }
 237         else {
 238             var cfg = Roo.apply({},  this.getAutoCreate());
 239
 240             cfg.id = this.id || Roo.id();
 241
 242             if (this.cls) {
 243                 cfg.cls = (typeof(cfg.cls) == 'undefined' ? this.cls : cfg.cls) + ' ' + this.cls;
 244             }
 245
 246             if (this.style) { // fixme needs to support more complex style data.
 247                 cfg.style = (typeof(cfg.style) == 'undefined' ? this.style : cfg.style) + '; ' + this.style;
 248             }
 249
 250             this.el = ct.createChild(cfg, position);
 251
 252             this.initEvents();
 253         }
 254
 255         if (this.buttons.length) {
 256
 257             Roo.each(this.buttons, function(bb) {
 258
 259                 var btn = this.el.select('.roo-upload-cropbox-footer div.roo-upload-cropbox-btn-group').first().createChild(bb);
 260
 261                 btn.on('click', this.onFooterButtonClick.createDelegate(this, [bb.action], true));
 262
 263             }, this);
 264         }
 265
 266         if(this.loadMask){
 267             this.maskEl = this.el;
 268         }
 269     },
 270
 271     initEvents : function()
 272     {
 273         this.urlAPI = (window.createObjectURL && window) ||
 274                                 (window.URL && URL.revokeObjectURL && URL) ||
 275                                 (window.webkitURL && webkitURL);
 276
 277         this.bodyEl = this.el.select('.roo-upload-cropbox-body', true).first();
 278         this.bodyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 279
 280         this.selectorEl = this.el.select('.roo-upload-cropbox-selector', true).first();
 281         this.selectorEl.hide();
 282
 283         this.previewEl = this.el.select('.roo-upload-cropbox-preview', true).first();
 284         this.previewEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 285
 286         this.thumbEl = this.el.select('.roo-upload-cropbox-thumb', true).first();
 287         this.thumbEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 288         this.thumbEl.hide();
 289
 290         this.notifyEl = this.el.select('.roo-upload-cropbox-empty-notify', true).first();
 291         this.notifyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 292
 293         this.errorEl = this.el.select('.roo-upload-cropbox-error-notify', true).first();
 294         this.errorEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 295         this.errorEl.hide();
 296
 297         this.footerEl = this.el.select('.roo-upload-cropbox-footer', true).first();
 298         this.footerEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 299         this.footerEl.hide();
 300
 301         this.setThumbBoxSize();
 302
 303         this.bind();
 304
 305         this.resize();
 306
 307         this.fireEvent('initial', this);
 308     },
 309
 310     bind : function()
 311     {
 312         var _this = this;
 313
 314         window.addEventListener("resize", function() { _this.resize(); } );
 315
 316         this.bodyEl.on('click', this.beforeSelectFile, this);
 317
 318         if(Roo.isTouch){
 319             this.bodyEl.on('touchstart', this.onTouchStart, this);
 320             this.bodyEl.on('touchmove', this.onTouchMove, this);
 321             this.bodyEl.on('touchend', this.onTouchEnd, this);
 322         }
 323
 324         if(!Roo.isTouch){
 325             this.bodyEl.on('mousedown', this.onMouseDown, this);
 326             this.bodyEl.on('mousemove', this.onMouseMove, this);
 327             var mousewheel = (/Firefox/i.test(navigator.userAgent))? 'DOMMouseScroll' : 'mousewheel';
 328             this.bodyEl.on(mousewheel, this.onMouseWheel, this);
 329             Roo.get(document).on('mouseup', this.onMouseUp, this);
 330         }
 331
 332         this.selectorEl.on('change', this.onFileSelected, this);
 333     },
 334
 335     reset : function()
 336     {
 337         this.scale = 0;
 338         this.baseScale = 1;
 339         this.rotate = 0;
 340         this.baseRotate = 1;
 341         this.dragable = false;
 342         this.pinching = false;
 343         this.mouseX = 0;
 344         this.mouseY = 0;
 345         this.cropData = false;
 346         this.notifyEl.dom.innerHTML = this.emptyText;
 347
 348         // this.selectorEl.dom.value = '';
 349
 350     },
 351
 352     resize : function()
 353     {
 354         if(this.fireEvent('resize', this) != false){
 355             this.setThumbBoxPosition();
 356             this.setCanvasPosition();
 357         }
 358     },
 359
 360     onFooterButtonClick : function(e, el, o, type)
 361     {
 362         switch (type) {
 363             case 'rotate-left' :
 364                 this.onRotateLeft(e);
 365                 break;
 366             case 'rotate-right' :
 367                 this.onRotateRight(e);
 368                 break;
 369             case 'picture' :
 370                 this.beforeSelectFile(e);
 371                 break;
 372             case 'trash' :
 373                 this.trash(e);
 374                 break;
 375             case 'crop' :
 376                 this.crop(e);
 377                 break;
 378             case 'download' :
 379                 this.download(e);
 380                 break;
 381             default :
 382                 break;
 383         }
 384
 385         this.fireEvent('footerbuttonclick', this, type);
 386     },
 387
 388     beforeSelectFile : function(e)
 389     {
 390         e.preventDefault();
 391
 392         if(this.fireEvent('beforeselectfile', this) != false){
 393             this.selectorEl.dom.click();
 394         }
 395     },
 396
 397     onFileSelected : function(e)
 398     {
 399         e.preventDefault();
 400
 401         if(typeof(this.selectorEl.dom.files) == 'undefined' || !this.selectorEl.dom.files.length){
 402             return;
 403         }
 404
 405         var file = this.selectorEl.dom.files[0];
 406
 407         if(this.fireEvent('inspect', this, file) != false){
 408             this.prepare(file);
 409         }
 410
 411     },
 412
 413     trash : function(e)
 414     {
 415         this.fireEvent('trash', this);
 416     },
 417
 418     download : function(e)
 419     {
 420         this.fireEvent('download', this);
 421     },
 422
 423     loadCanvas : function(src)
 424     {
 425         if(this.fireEvent('beforeloadcanvas', this, src) != false){
 426
 427             this.reset();
 428
 429             this.imageEl = document.createElement('img');
 430
 431             var _this = this;
 432
 433             this.imageEl.addEventListener("load", function(){ _this.onLoadCanvas(); });
 434
 435             this.imageEl.src = src;
 436         }
 437     },
 438
 439     onLoadCanvas : function()
 440     {
 441         this.imageEl.OriginWidth = this.imageEl.naturalWidth || this.imageEl.width;
 442         this.imageEl.OriginHeight = this.imageEl.naturalHeight || this.imageEl.height;
 443
 444         if(this.fireEvent('loadcanvas', this, this.imageEl) != false){
 445
 446             this.bodyEl.un('click', this.beforeSelectFile, this);
 447
 448             this.notifyEl.hide();
 449             this.thumbEl.show();
 450             this.footerEl.show();
 451
 452             this.baseRotateLevel();
 453
 454             if(this.isDocument){
 455                 this.setThumbBoxSize();
 456             }
 457
 458             this.setThumbBoxPosition();
 459
 460             this.baseScaleLevel();
 461
 462             this.draw();
 463
 464             this.resize();
 465
 466             this.canvasLoaded = true;
 467
 468         }
 469
 470         if(this.loadMask){
 471             this.maskEl.unmask();
 472         }
 473
 474     },
 475
 476     setCanvasPosition : function()
 477     {
 478         if(!this.canvasEl){
 479             return;
 480         }
 481
 482         var pw = Math.ceil((this.bodyEl.getWidth() - this.canvasEl.width) / 2);
 483         var ph = Math.ceil((this.bodyEl.getHeight() - this.canvasEl.height) / 2);
 484
 485         this.previewEl.setLeft(pw);
 486         this.previewEl.setTop(ph);
 487
 488     },
 489
 490     onMouseDown : function(e)
 491     {
 492         e.stopEvent();
 493
 494         this.dragable = true;
 495         this.pinching = false;
 496
 497         if(this.isDocument && (this.canvasEl.width < this.thumbEl.getWidth() || this.canvasEl.height < this.thumbEl.getHeight())){
 498             this.dragable = false;
 499             return;
 500         }
 501
 502         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 503         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 504
 505     },
 506
 507     onMouseMove : function(e)
 508     {
 509         e.stopEvent();
 510
 511         if(!this.canvasLoaded){
 512             return;
 513         }
 514
 515         if (!this.dragable){
 516             return;
 517         }
 518
 519         var minX = Math.ceil(this.thumbEl.getLeft(true));
 520         var minY = Math.ceil(this.thumbEl.getTop(true));
 521
 522         var maxX = Math.ceil(minX + this.thumbEl.getWidth() - this.canvasEl.width);
 523         var maxY = Math.ceil(minY + this.thumbEl.getHeight() - this.canvasEl.height);
 524
 525         if(minX > maxX) {
 526             var tempX = minX;
 527             minX = maxX;
 528             maxX = tempX;
 529         }
 530
 531         if(minY > maxY) {
 532             var tempY = minY;
 533             minY = maxY;
 534             maxY = tempY;
 535         }
 536
 537         var x = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 538         var y = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 539
 540         x = x - this.mouseX;
 541         y = y - this.mouseY;
 542
 543         var bgX = Math.ceil(x + this.previewEl.getLeft(true));
 544         var bgY = Math.ceil(y + this.previewEl.getTop(true));
 545
 546         bgX = (bgX < minX) ? minX : ((bgX > maxX) ? maxX : bgX);
 547         bgY = (bgY < minY) ? minY : ((bgY > maxY) ? maxY : bgY);
 548
 549         this.previewEl.setLeft(bgX);
 550         this.previewEl.setTop(bgY);
 551
 552         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 553         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 554     },
 555
 556     onMouseUp : function(e)
 557     {
 558         e.stopEvent();
 559
 560         this.dragable = false;
 561     },
 562
 563     onMouseWheel : function(e)
 564     {
 565         e.stopEvent();
 566
 567         this.startScale = this.scale;
 568         this.scale = (e.getWheelDelta() == 1) ? (this.scale + 1) : (this.scale - 1);
 569
 570         if(!this.zoomable()){
 571             this.scale = this.startScale;
 572             return;
 573         }
 574
 575
 576         this.draw();
 577
 578         return;
 579     },
 580
 581     zoomable : function()
 582     {
 583         var minScale = this.thumbEl.getWidth() / this.minWidth;
 584
 585         if(this.minWidth < this.minHeight){
 586             minScale = this.thumbEl.getHeight() / this.minHeight;
 587         }
 588
 589         var width = Math.ceil(this.imageEl.OriginWidth * this.getScaleLevel() / minScale);
 590         var height = Math.ceil(this.imageEl.OriginHeight * this.getScaleLevel() / minScale);
 591
 592
 593         var maxWidth = this.imageEl.OriginWidth;
 594         var maxHeight = this.imageEl.OriginHeight;
 595
 596         if(
 597                 this.isDocument &&
 598                 (this.rotate == 0 || this.rotate == 180) &&
 599                 (
 600                     width > this.imageEl.OriginWidth ||
 601                     height > this.imageEl.OriginHeight ||
 602                     (width < this.minWidth && height < this.minHeight)
 603                 )
 604         ){
 605             return false;
 606         }
 607
 608         if(
 609                 this.isDocument &&
 610                 (this.rotate == 90 || this.rotate == 270) &&
 611                 (
 612                     width > this.imageEl.OriginWidth ||
 613                     height > this.imageEl.OriginHeight ||
 614                     (width < this.minHeight && height < this.minWidth)
 615                 )
 616         ){
 617             return false;
 618         }
 619
 620         if(
 621                 !this.isDocument &&
 622                 (this.rotate == 0 || this.rotate == 180) &&
 623                 (
 624                     (this.imageEl.OriginWidth >= this.minWidth) && width < this.minWidth ||
 625                     (this.imageEl.OriginHeight >= this.minHeight) && height < this.minHeight ||
 626                     width > maxWidth ||
 627                     height > maxHeight
 628                 )
 629         ){
 630             return false;
 631         }
 632
 633         if(
 634                 !this.isDocument &&
 635                 (this.rotate == 90 || this.rotate == 270) &&
 636                 (
 637                     width < this.minHeight ||
 638                     width > this.imageEl.OriginWidth ||
 639                     height < this.minWidth ||
 640                     height > this.imageEl.OriginHeight
 641                 )
 642         ){
 643             return false;
 644         }
 645
 646         return true;
 647
 648     },
 649
 650     onRotateLeft : function(e)
 651     {
 652         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 653
 654             var minScale = this.thumbEl.getWidth() / this.minWidth;
 655
 656             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 657             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 658
 659             this.startScale = this.scale;
 660
 661             while (this.getScaleLevel() < minScale){
 662
 663                 this.scale = this.scale + 1;
 664
 665                 if(!this.zoomable()){
 666                     break;
 667                 }
 668
 669                 if(
 670                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 671                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 672                 ){
 673                     continue;
 674                 }
 675
 676                 this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 677
 678                 this.draw();
 679
 680                 return;
 681             }
 682
 683             this.scale = this.startScale;
 684
 685             this.onRotateFail();
 686
 687             return false;
 688         }
 689
 690         this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 691
 692         if(this.isDocument){
 693             this.setThumbBoxSize();
 694             this.setThumbBoxPosition();
 695             this.setCanvasPosition();
 696         }
 697
 698         this.draw();
 699
 700         this.fireEvent('rotate', this, 'left');
 701
 702     },
 703
 704     onRotateRight : function(e)
 705     {
 706         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 707
 708             var minScale = this.thumbEl.getWidth() / this.minWidth;
 709
 710             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 711             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 712
 713             this.startScale = this.scale;
 714
 715             while (this.getScaleLevel() < minScale){
 716
 717                 this.scale = this.scale + 1;
 718
 719                 if(!this.zoomable()){
 720                     break;
 721                 }
 722
 723                 if(
 724                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 725                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 726                 ){
 727                     continue;
 728                 }
 729
 730                 this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 731
 732                 this.draw();
 733
 734                 return;
 735             }
 736
 737             this.scale = this.startScale;
 738
 739             this.onRotateFail();
 740
 741             return false;
 742         }
 743
 744         this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 745
 746         if(this.isDocument){
 747             this.setThumbBoxSize();
 748             this.setThumbBoxPosition();
 749             this.setCanvasPosition();
 750         }
 751
 752         this.draw();
 753
 754         this.fireEvent('rotate', this, 'right');
 755     },
 756
 757     onRotateFail : function()
 758     {
 759         this.errorEl.show(true);
 760
 761         var _this = this;
 762
 763         (function() { _this.errorEl.hide(true); }).defer(this.errorTimeout);
 764     },
 765
 766     draw : function()
 767     {
 768         this.previewEl.dom.innerHTML = '';
 769
 770         var canvasEl = document.createElement("canvas");
 771
 772         var contextEl = canvasEl.getContext("2d");
 773
 774         canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 775         canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 776         var center = this.imageEl.OriginWidth / 2;
 777
 778         if(this.imageEl.OriginWidth < this.imageEl.OriginHeight){
 779             canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 780             canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 781             center = this.imageEl.OriginHeight / 2;
 782         }
 783
 784         contextEl.scale(this.getScaleLevel(), this.getScaleLevel());
 785
 786         contextEl.translate(center, center);
 787         contextEl.rotate(this.rotate * Math.PI / 180);
 788
 789         contextEl.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 790
 791         this.canvasEl = document.createElement("canvas");
 792
 793         this.contextEl = this.canvasEl.getContext("2d");
 794
 795         switch (this.rotate) {
 796             case 0 :
 797
 798                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 799                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 800
 801                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 802
 803                 break;
 804             case 90 :
 805
 806                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 807                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 808
 809                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 810                     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);
 811                     break;
 812                 }
 813
 814                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 815
 816                 break;
 817             case 180 :
 818
 819                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 820                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 821
 822                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 823                     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);
 824                     break;
 825                 }
 826
 827                 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);
 828
 829                 break;
 830             case 270 :
 831
 832                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 833                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 834
 835                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 836                     this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 837                     break;
 838                 }
 839
 840                 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);
 841
 842                 break;
 843             default :
 844                 break;
 845         }
 846
 847         this.previewEl.appendChild(this.canvasEl);
 848
 849         this.setCanvasPosition();
 850     },
 851
 852     crop : function()
 853     {
 854         if(!this.canvasLoaded){
 855             return;
 856         }
 857
 858         var imageCanvas = document.createElement("canvas");
 859
 860         var imageContext = imageCanvas.getContext("2d");
 861
 862         imageCanvas.width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 863         imageCanvas.height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 864
 865         var center = imageCanvas.width / 2;
 866
 867         imageContext.translate(center, center);
 868
 869         imageContext.rotate(this.rotate * Math.PI / 180);
 870
 871         imageContext.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 872
 873         var canvas = document.createElement("canvas");
 874
 875         var context = canvas.getContext("2d");
 876
 877         canvas.width = this.thumbEl.getWidth() / this.getScaleLevel();
 878
 879         canvas.height = this.thumbEl.getHeight() / this.getScaleLevel();
 880
 881         switch (this.rotate) {
 882             case 0 :
 883
 884                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 885                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 886
 887                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 888                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 889
 890                 var sx = this.thumbEl.getLeft(true) - this.previewEl.getLeft(true);
 891                 var sy = this.thumbEl.getTop(true) - this.previewEl.getTop(true);
 892
 893                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 894                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 895
 896                 if(canvas.width > this.outputMaxWidth) {
 897                     var scale = this.outputMaxWidth / canvas.width;
 898                     canvas.width = canvas.width * scale;
 899                     canvas.height = canvas.height * scale;
 900                     context.scale(scale, scale);
 901                 }
 902
 903                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 904
 905                 break;
 906             case 90 :
 907
 908                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 909                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 910
 911                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 912                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 913
 914                 var targetWidth = this.minWidth - 2 * x;
 915                 var targetHeight = this.minHeight - 2 * y;
 916
 917                 var scale = 1;
 918
 919                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 920                     scale = targetWidth / width;
 921                 }
 922
 923                 if(x > 0 && y == 0){
 924                     scale = targetHeight / height;
 925                 }
 926
 927                 if(x > 0 && y > 0){
 928                     scale = targetWidth / width;
 929
 930                     if(width < height){
 931                         scale = targetHeight / height;
 932                     }
 933                 }
 934
 935                 context.scale(scale, scale);
 936
 937                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 938                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 939
 940                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 941                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 942
 943                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 944
 945                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 946
 947                 break;
 948             case 180 :
 949
 950                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 951                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 952
 953                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 954                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 955
 956                 var targetWidth = this.minWidth - 2 * x;
 957                 var targetHeight = this.minHeight - 2 * y;
 958
 959                 var scale = 1;
 960
 961                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 962                     scale = targetWidth / width;
 963                 }
 964
 965                 if(x > 0 && y == 0){
 966                     scale = targetHeight / height;
 967                 }
 968
 969                 if(x > 0 && y > 0){
 970                     scale = targetWidth / width;
 971
 972                     if(width < height){
 973                         scale = targetHeight / height;
 974                     }
 975                 }
 976
 977                 context.scale(scale, scale);
 978
 979                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 980                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 981
 982                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 983                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 984
 985                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
 986                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 987
 988                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 989
 990                 break;
 991             case 270 :
 992
 993                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 994                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 995
 996                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 997                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 998
 999                 var targetWidth = this.minWidth - 2 * x;
1000                 var targetHeight = this.minHeight - 2 * y;
1001
1002                 var scale = 1;
1003
1004                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1005                     scale = targetWidth / width;
1006                 }
1007
1008                 if(x > 0 && y == 0){
1009                     scale = targetHeight / height;
1010                 }
1011
1012                 if(x > 0 && y > 0){
1013                     scale = targetWidth / width;
1014
1015                     if(width < height){
1016                         scale = targetHeight / height;
1017                     }
1018                 }
1019
1020                 context.scale(scale, scale);
1021                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1022                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1023
1024                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1025                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1026
1027                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1028
1029                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1030
1031                 break;
1032             default :
1033                 break;
1034         }
1035
1036         this.cropData = canvas.toDataURL(this.cropType);
1037
1038         if(this.fireEvent('crop', this, this.cropData) !== false){
1039             this.process(this.file, this.cropData);
1040         }
1041
1042         return;
1043
1044     },
1045
1046     setThumbBoxSize : function()
1047     {
1048         var width, height;
1049
1050         if(this.isDocument && typeof(this.imageEl) != 'undefined'){
1051             width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.max(this.minWidth, this.minHeight) : Math.min(this.minWidth, this.minHeight);
1052             height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.min(this.minWidth, this.minHeight) : Math.max(this.minWidth, this.minHeight);
1053
1054             this.minWidth = width;
1055             this.minHeight = height;
1056
1057             if(this.rotate == 90 || this.rotate == 270){
1058                 this.minWidth = height;
1059                 this.minHeight = width;
1060             }
1061         }
1062
1063         height = 300;
1064         width = Math.ceil(this.minWidth * height / this.minHeight);
1065
1066         if(this.minWidth > this.minHeight){
1067             width = 300;
1068             height = Math.ceil(this.minHeight * width / this.minWidth);
1069         }
1070
1071         this.thumbEl.setStyle({
1072             width : width + 'px',
1073             height : height + 'px'
1074         });
1075
1076         return;
1077
1078     },
1079
1080     setThumbBoxPosition : function()
1081     {
1082         var x = Math.ceil((this.bodyEl.getWidth() - this.thumbEl.getWidth()) / 2 );
1083         var y = Math.ceil((this.bodyEl.getHeight() - this.thumbEl.getHeight()) / 2);
1084
1085         this.thumbEl.setLeft(x);
1086         this.thumbEl.setTop(y);
1087
1088     },
1089
1090     baseRotateLevel : function()
1091     {
1092         this.baseRotate = 1;
1093
1094         if(
1095                 typeof(this.exif) != 'undefined' &&
1096                 typeof(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != 'undefined' &&
1097                 [1, 3, 6, 8].indexOf(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != -1
1098         ){
1099             this.baseRotate = this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']];
1100         }
1101
1102         this.rotate = Roo.dialog.UploadCropbox['Orientation'][this.baseRotate];
1103
1104     },
1105
1106     baseScaleLevel : function()
1107     {
1108         var width, height;
1109
1110         if(this.isDocument){
1111
1112             if(this.baseRotate == 6 || this.baseRotate == 8){
1113
1114                 height = this.thumbEl.getHeight();
1115                 this.baseScale = height / this.imageEl.OriginWidth;
1116
1117                 if(this.imageEl.OriginHeight * this.baseScale > this.thumbEl.getWidth()){
1118                     width = this.thumbEl.getWidth();
1119                     this.baseScale = width / this.imageEl.OriginHeight;
1120                 }
1121
1122                 return;
1123             }
1124
1125             height = this.thumbEl.getHeight();
1126             this.baseScale = height / this.imageEl.OriginHeight;
1127
1128             if(this.imageEl.OriginWidth * this.baseScale > this.thumbEl.getWidth()){
1129                 width = this.thumbEl.getWidth();
1130                 this.baseScale = width / this.imageEl.OriginWidth;
1131             }
1132
1133             return;
1134         }
1135
1136         if(this.baseRotate == 6 || this.baseRotate == 8){
1137
1138             width = this.thumbEl.getHeight();
1139             this.baseScale = width / this.imageEl.OriginHeight;
1140
1141             if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getWidth()){
1142                 height = this.thumbEl.getWidth();
1143                 this.baseScale = height / this.imageEl.OriginHeight;
1144             }
1145
1146             if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1147                 height = this.thumbEl.getWidth();
1148                 this.baseScale = height / this.imageEl.OriginHeight;
1149
1150                 if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getHeight()){
1151                     width = this.thumbEl.getHeight();
1152                     this.baseScale = width / this.imageEl.OriginWidth;
1153                 }
1154             }
1155
1156             return;
1157         }
1158
1159         width = this.thumbEl.getWidth();
1160         this.baseScale = width / this.imageEl.OriginWidth;
1161
1162         if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getHeight()){
1163             height = this.thumbEl.getHeight();
1164             this.baseScale = height / this.imageEl.OriginHeight;
1165         }
1166
1167         if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1168
1169             height = this.thumbEl.getHeight();
1170             this.baseScale = height / this.imageEl.OriginHeight;
1171
1172             if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getWidth()){
1173                 width = this.thumbEl.getWidth();
1174                 this.baseScale = width / this.imageEl.OriginWidth;
1175             }
1176
1177         }
1178
1179         if(this.imageEl.OriginWidth < this.minWidth || this.imageEl.OriginHeight < this.minHeight) {
1180             this.baseScale = width / this.minWidth;
1181         }
1182
1183         return;
1184     },
1185
1186     getScaleLevel : function()
1187     {
1188         return this.baseScale * Math.pow(1.02, this.scale);
1189     },
1190
1191     onTouchStart : function(e)
1192     {
1193         if(!this.canvasLoaded){
1194             this.beforeSelectFile(e);
1195             return;
1196         }
1197
1198         var touches = e.browserEvent.touches;
1199
1200         if(!touches){
1201             return;
1202         }
1203
1204         if(touches.length == 1){
1205             this.onMouseDown(e);
1206             return;
1207         }
1208
1209         if(touches.length != 2){
1210             return;
1211         }
1212
1213         var coords = [];
1214
1215         for(var i = 0, finger; finger = touches[i]; i++){
1216             coords.push(finger.pageX, finger.pageY);
1217         }
1218
1219         var x = Math.pow(coords[0] - coords[2], 2);
1220         var y = Math.pow(coords[1] - coords[3], 2);
1221
1222         this.startDistance = Math.sqrt(x + y);
1223
1224         this.startScale = this.scale;
1225
1226         this.pinching = true;
1227         this.dragable = false;
1228
1229     },
1230
1231     onTouchMove : function(e)
1232     {
1233         if(!this.pinching && !this.dragable){
1234             return;
1235         }
1236
1237         var touches = e.browserEvent.touches;
1238
1239         if(!touches){
1240             return;
1241         }
1242
1243         if(this.dragable){
1244             this.onMouseMove(e);
1245             return;
1246         }
1247
1248         var coords = [];
1249
1250         for(var i = 0, finger; finger = touches[i]; i++){
1251             coords.push(finger.pageX, finger.pageY);
1252         }
1253
1254         var x = Math.pow(coords[0] - coords[2], 2);
1255         var y = Math.pow(coords[1] - coords[3], 2);
1256
1257         this.endDistance = Math.sqrt(x + y);
1258
1259         this.scale = this.startScale + Math.floor(Math.log(this.endDistance / this.startDistance) / Math.log(1.1));
1260
1261         if(!this.zoomable()){
1262             this.scale = this.startScale;
1263             return;
1264         }
1265
1266         this.draw();
1267
1268     },
1269
1270     onTouchEnd : function(e)
1271     {
1272         this.pinching = false;
1273         this.dragable = false;
1274
1275     },
1276
1277     process : function(file, crop)
1278     {
1279         if(this.loadMask){
1280             this.maskEl.mask(this.loadingText);
1281         }
1282
1283         this.xhr = new XMLHttpRequest();
1284
1285         file.xhr = this.xhr;
1286
1287         this.xhr.open(this.method, this.url, true);
1288
1289         var headers = {
1290             "Accept": "application/json",
1291             "Cache-Control": "no-cache",
1292             "X-Requested-With": "XMLHttpRequest"
1293         };
1294
1295         for (var headerName in headers) {
1296             var headerValue = headers[headerName];
1297             if (headerValue) {
1298                 this.xhr.setRequestHeader(headerName, headerValue);
1299             }
1300         }
1301
1302         var _this = this;
1303
1304         this.xhr.onload = function()
1305         {
1306             _this.xhrOnLoad(_this.xhr);
1307         }
1308
1309         this.xhr.onerror = function()
1310         {
1311             _this.xhrOnError(_this.xhr);
1312         }
1313
1314         var formData = new FormData();
1315
1316         formData.append("onid", "43024");
1317         formData.append("ontable", "pressrelease_boilerplate");
1318
1319         formData.append('returnHTML', 'NO');
1320
1321         if(crop){
1322             formData.append('crop', crop);
1323             var blobBin = atob(crop.split(',')[1]);
1324             var array = [];
1325             for(var i = 0; i < blobBin.length; i++) {
1326                 array.push(blobBin.charCodeAt(i));
1327             }
1328             var croppedFile =new Blob([new Uint8Array(array)], {type: 'image/png'});
1329             formData.append(this.paramName, croppedFile, file.name);
1330         }
1331
1332         if(typeof(file.filename) != 'undefined'){
1333             formData.append('filename', file.filename);
1334         }
1335
1336         if(typeof(file.mimetype) != 'undefined'){
1337             formData.append('mimetype', file.mimetype);
1338         }
1339
1340         if(this.fireEvent('arrange', this, formData) != false){
1341             this.xhr.send(formData);
1342         };
1343     },
1344
1345     xhrOnLoad : function(xhr)
1346     {
1347         if(this.loadMask){
1348             this.maskEl.unmask();
1349         }
1350
1351         if (xhr.readyState !== 4) {
1352             this.fireEvent('exception', this, xhr);
1353             return;
1354         }
1355
1356         var response = Roo.decode(xhr.responseText);
1357
1358         if(!response.success){
1359             this.fireEvent('exception', this, xhr);
1360             return;
1361         }
1362
1363         var response = Roo.decode(xhr.responseText);
1364
1365         this.fireEvent('upload', this, response);
1366
1367     },
1368
1369     xhrOnError : function()
1370     {
1371         if(this.loadMask){
1372             this.maskEl.unmask();
1373         }
1374
1375         Roo.log('xhr on error');
1376
1377         var response = Roo.decode(xhr.responseText);
1378
1379         Roo.log(response);
1380
1381     },
1382
1383     prepare : function(file)
1384     {
1385         if(this.loadMask){
1386             this.maskEl.mask(this.loadingText);
1387         }
1388
1389         this.file = false;
1390         this.exif = {};
1391
1392         if(typeof(file) === 'string'){
1393             this.loadCanvas(file);
1394             return;
1395         }
1396
1397         if(!file || !this.urlAPI){
1398             return;
1399         }
1400
1401         this.file = file;
1402         this.cropType = file.type;
1403
1404         var _this = this;
1405
1406         if(this.fireEvent('prepare', this, this.file) != false){
1407
1408             var reader = new FileReader();
1409
1410             reader.onload = function (e) {
1411                 if (e.target.error) {
1412                     Roo.log(e.target.error);
1413                     return;
1414                 }
1415
1416                 var buffer = e.target.result,
1417                     dataView = new DataView(buffer),
1418                     offset = 2,
1419                     maxOffset = dataView.byteLength - 4,
1420                     markerBytes,
1421                     markerLength;
1422
1423                 if (dataView.getUint16(0) === 0xffd8) {
1424                     while (offset < maxOffset) {
1425                         markerBytes = dataView.getUint16(offset);
1426
1427                         if ((markerBytes >= 0xffe0 && markerBytes <= 0xffef) || markerBytes === 0xfffe) {
1428                             markerLength = dataView.getUint16(offset + 2) + 2;
1429                             if (offset + markerLength > dataView.byteLength) {
1430                                 Roo.log('Invalid meta data: Invalid segment size.');
1431                                 break;
1432                             }
1433
1434                             if(markerBytes == 0xffe1){
1435                                 _this.parseExifData(
1436                                     dataView,
1437                                     offset,
1438                                     markerLength
1439                                 );
1440                             }
1441
1442                             offset += markerLength;
1443
1444                             continue;
1445                         }
1446
1447                         break;
1448                     }
1449
1450                 }
1451
1452                 var url = _this.urlAPI.createObjectURL(_this.file);
1453
1454                 _this.loadCanvas(url);
1455
1456                 return;
1457             }
1458
1459             reader.readAsArrayBuffer(this.file);
1460
1461         }
1462
1463     },
1464
1465     parseExifData : function(dataView, offset, length)
1466     {
1467         var tiffOffset = offset + 10,
1468             littleEndian,
1469             dirOffset;
1470
1471         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1472             // No Exif data, might be XMP data instead
1473             return;
1474         }
1475
1476         // Check for the ASCII code for "Exif" (0x45786966):
1477         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1478             // No Exif data, might be XMP data instead
1479             return;
1480         }
1481         if (tiffOffset + 8 > dataView.byteLength) {
1482             Roo.log('Invalid Exif data: Invalid segment size.');
1483             return;
1484         }
1485         // Check for the two null bytes:
1486         if (dataView.getUint16(offset + 8) !== 0x0000) {
1487             Roo.log('Invalid Exif data: Missing byte alignment offset.');
1488             return;
1489         }
1490         // Check the byte alignment:
1491         switch (dataView.getUint16(tiffOffset)) {
1492         case 0x4949:
1493             littleEndian = true;
1494             break;
1495         case 0x4D4D:
1496             littleEndian = false;
1497             break;
1498         default:
1499             Roo.log('Invalid Exif data: Invalid byte alignment marker.');
1500             return;
1501         }
1502         // Check for the TIFF tag marker (0x002A):
1503         if (dataView.getUint16(tiffOffset + 2, littleEndian) !== 0x002A) {
1504             Roo.log('Invalid Exif data: Missing TIFF marker.');
1505             return;
1506         }
1507         // Retrieve the directory offset bytes, usually 0x00000008 or 8 decimal:
1508         dirOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
1509
1510         this.parseExifTags(
1511             dataView,
1512             tiffOffset,
1513             tiffOffset + dirOffset,
1514             littleEndian
1515         );
1516     },
1517
1518     parseExifTags : function(dataView, tiffOffset, dirOffset, littleEndian)
1519     {
1520         var tagsNumber,
1521             dirEndOffset,
1522             i;
1523         if (dirOffset + 6 > dataView.byteLength) {
1524             Roo.log('Invalid Exif data: Invalid directory offset.');
1525             return;
1526         }
1527         tagsNumber = dataView.getUint16(dirOffset, littleEndian);
1528         dirEndOffset = dirOffset + 2 + 12 * tagsNumber;
1529         if (dirEndOffset + 4 > dataView.byteLength) {
1530             Roo.log('Invalid Exif data: Invalid directory size.');
1531             return;
1532         }
1533         for (i = 0; i < tagsNumber; i += 1) {
1534             this.parseExifTag(
1535                 dataView,
1536                 tiffOffset,
1537                 dirOffset + 2 + 12 * i, // tag offset
1538                 littleEndian
1539             );
1540         }
1541         // Return the offset to the next directory:
1542         return dataView.getUint32(dirEndOffset, littleEndian);
1543     },
1544
1545     parseExifTag : function (dataView, tiffOffset, offset, littleEndian)
1546     {
1547         var tag = dataView.getUint16(offset, littleEndian);
1548
1549         this.exif[tag] = this.getExifValue(
1550             dataView,
1551             tiffOffset,
1552             offset,
1553             dataView.getUint16(offset + 2, littleEndian), // tag type
1554             dataView.getUint32(offset + 4, littleEndian), // tag length
1555             littleEndian
1556         );
1557     },
1558
1559     getExifValue : function (dataView, tiffOffset, offset, type, length, littleEndian)
1560     {
1561         var tagType = Roo.dialog.UploadCropbox.exifTagTypes[type],
1562             tagSize,
1563             dataOffset,
1564             values,
1565             i,
1566             str,
1567             c;
1568
1569         if (!tagType) {
1570             Roo.log('Invalid Exif data: Invalid tag type.');
1571             return;
1572         }
1573
1574         tagSize = tagType.size * length;
1575         // Determine if the value is contained in the dataOffset bytes,
1576         // or if the value at the dataOffset is a pointer to the actual data:
1577         dataOffset = tagSize > 4 ?
1578                 tiffOffset + dataView.getUint32(offset + 8, littleEndian) : (offset + 8);
1579         if (dataOffset + tagSize > dataView.byteLength) {
1580             Roo.log('Invalid Exif data: Invalid data offset.');
1581             return;
1582         }
1583         if (length === 1) {
1584             return tagType.getValue(dataView, dataOffset, littleEndian);
1585         }
1586         values = [];
1587         for (i = 0; i < length; i += 1) {
1588             values[i] = tagType.getValue(dataView, dataOffset + i * tagType.size, littleEndian);
1589         }
1590
1591         if (tagType.ascii) {
1592             str = '';
1593             // Concatenate the chars:
1594             for (i = 0; i < values.length; i += 1) {
1595                 c = values[i];
1596                 // Ignore the terminating NULL byte(s):
1597                 if (c === '\u0000') {
1598                     break;
1599                 }
1600                 str += c;
1601             }
1602             return str;
1603         }
1604         return values;
1605     }
1606
1607 });
1608
1609 Roo.apply(Roo.dialog.UploadCropbox, {
1610     tags : {
1611         'Orientation': 0x0112
1612     },
1613
1614     Orientation: {
1615             1: 0, //'top-left',
1616 //            2: 'top-right',
1617             3: 180, //'bottom-right',
1618 //            4: 'bottom-left',
1619 //            5: 'left-top',
1620             6: 90, //'right-top',
1621 //            7: 'right-bottom',
1622             8: 270 //'left-bottom'
1623     },
1624
1625     exifTagTypes : {
1626         // byte, 8-bit unsigned int:
1627         1: {
1628             getValue: function (dataView, dataOffset) {
1629                 return dataView.getUint8(dataOffset);
1630             },
1631             size: 1
1632         },
1633         // ascii, 8-bit byte:
1634         2: {
1635             getValue: function (dataView, dataOffset) {
1636                 return String.fromCharCode(dataView.getUint8(dataOffset));
1637             },
1638             size: 1,
1639             ascii: true
1640         },
1641         // short, 16 bit int:
1642         3: {
1643             getValue: function (dataView, dataOffset, littleEndian) {
1644                 return dataView.getUint16(dataOffset, littleEndian);
1645             },
1646             size: 2
1647         },
1648         // long, 32 bit int:
1649         4: {
1650             getValue: function (dataView, dataOffset, littleEndian) {
1651                 return dataView.getUint32(dataOffset, littleEndian);
1652             },
1653             size: 4
1654         },
1655         // rational = two long values, first is numerator, second is denominator:
1656         5: {
1657             getValue: function (dataView, dataOffset, littleEndian) {
1658                 return dataView.getUint32(dataOffset, littleEndian) /
1659                     dataView.getUint32(dataOffset + 4, littleEndian);
1660             },
1661             size: 8
1662         },
1663         // slong, 32 bit signed int:
1664         9: {
1665             getValue: function (dataView, dataOffset, littleEndian) {
1666                 return dataView.getInt32(dataOffset, littleEndian);
1667             },
1668             size: 4
1669         },
1670         // srational, two slongs, first is numerator, second is denominator:
1671         10: {
1672             getValue: function (dataView, dataOffset, littleEndian) {
1673                 return dataView.getInt32(dataOffset, littleEndian) /
1674                     dataView.getInt32(dataOffset + 4, littleEndian);
1675             },
1676             size: 8
1677         }
1678     },
1679
1680     footer : {
1681         STANDARD : [
1682             {
1683                 tag : 'div',
1684                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1685                 action : 'rotate-left',
1686                 cn : [
1687                     {
1688                         tag : 'button',
1689                         cls : 'btn btn-default',
1690                         html : '<i class="fa fa-undo"></i>'
1691                     }
1692                 ]
1693             },
1694             {
1695                 tag : 'div',
1696                 cls : 'btn-group roo-upload-cropbox-picture',
1697                 action : 'picture',
1698                 cn : [
1699                     {
1700                         tag : 'button',
1701                         cls : 'btn btn-default',
1702                         html : '<i class="fa fa-picture-o"></i>'
1703                     }
1704                 ]
1705             },
1706             {
1707                 tag : 'div',
1708                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1709                 action : 'rotate-right',
1710                 cn : [
1711                     {
1712                         tag : 'button',
1713                         cls : 'btn btn-default',
1714                         html : '<i class="fa fa-repeat"></i>'
1715                     }
1716                 ]
1717             }
1718         ],
1719         DOCUMENT : [
1720             {
1721                 tag : 'div',
1722                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1723                 action : 'rotate-left',
1724                 cn : [
1725                     {
1726                         tag : 'button',
1727                         cls : 'btn btn-default',
1728                         html : '<i class="fa fa-undo"></i>'
1729                     }
1730                 ]
1731             },
1732             {
1733                 tag : 'div',
1734                 cls : 'btn-group roo-upload-cropbox-download',
1735                 action : 'download',
1736                 cn : [
1737                     {
1738                         tag : 'button',
1739                         cls : 'btn btn-default',
1740                         html : '<i class="fa fa-download"></i>'
1741                     }
1742                 ]
1743             },
1744             {
1745                 tag : 'div',
1746                 cls : 'btn-group roo-upload-cropbox-crop',
1747                 action : 'crop',
1748                 cn : [
1749                     {
1750                         tag : 'button',
1751                         cls : 'btn btn-default',
1752                         html : '<i class="fa fa-crop"></i>'
1753                     }
1754                 ]
1755             },
1756             {
1757                 tag : 'div',
1758                 cls : 'btn-group roo-upload-cropbox-trash',
1759                 action : 'trash',
1760                 cn : [
1761                     {
1762                         tag : 'button',
1763                         cls : 'btn btn-default',
1764                         html : '<i class="fa fa-trash"></i>'
1765                     }
1766                 ]
1767             },
1768             {
1769                 tag : 'div',
1770                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1771                 action : 'rotate-right',
1772                 cn : [
1773                     {
1774                         tag : 'button',
1775                         cls : 'btn btn-default',
1776                         html : '<i class="fa fa-repeat"></i>'
1777                     }
1778                 ]
1779             }
1780         ],
1781         ROTATOR : [
1782             {
1783                 tag : 'div',
1784                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1785                 action : 'rotate-left',
1786                 cn : [
1787                     {
1788                         tag : 'button',
1789                         cls : 'btn btn-default',
1790                         html : '<i class="fa fa-undo"></i>'
1791                     }
1792                 ]
1793             },
1794             {
1795                 tag : 'div',
1796                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1797                 action : 'rotate-right',
1798                 cn : [
1799                     {
1800                         tag : 'button',
1801                         cls : 'btn btn-default',
1802                         html : '<i class="fa fa-repeat"></i>'
1803                     }
1804                 ]
1805             }
1806         ]
1807     }
1808 });