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         console.log("LOAD CANVAS");
 418         console.log(src);
 419         if(this.fireEvent('beforeloadcanvas', this, src) != false){
 420
 421             this.reset();
 422
 423             this.imageEl = document.createElement('img');
 424
 425             var _this = this;
 426
 427             this.imageEl.addEventListener("load", function(){ _this.onLoadCanvas(); });
 428
 429             this.imageEl.src = src;
 430         }
 431     },
 432
 433     onLoadCanvas : function()
 434     {
 435         console.log("ON LOAD CANVAS");
 436         this.imageEl.OriginWidth = this.imageEl.naturalWidth || this.imageEl.width;
 437         this.imageEl.OriginHeight = this.imageEl.naturalHeight || this.imageEl.height;
 438
 439         if(this.fireEvent('loadcanvas', this, this.imageEl) != false){
 440
 441             this.bodyEl.un('click', this.beforeSelectFile, this);
 442
 443             this.notifyEl.hide();
 444             this.thumbEl.show();
 445             this.footerEl.show();
 446
 447             this.baseRotateLevel();
 448
 449             if(this.isDocument){
 450                 this.setThumbBoxSize();
 451             }
 452
 453             this.setThumbBoxPosition();
 454
 455             this.baseScaleLevel();
 456
 457             this.draw();
 458
 459             this.resize();
 460
 461             this.canvasLoaded = true;
 462
 463         }
 464
 465         if(this.loadMask){
 466             this.maskEl.unmask();
 467         }
 468
 469     },
 470
 471     setCanvasPosition : function()
 472     {
 473         if(!this.canvasEl){
 474             return;
 475         }
 476
 477         var pw = Math.ceil((this.bodyEl.getWidth() - this.canvasEl.width) / 2);
 478         var ph = Math.ceil((this.bodyEl.getHeight() - this.canvasEl.height) / 2);
 479
 480         this.previewEl.setLeft(pw);
 481         this.previewEl.setTop(ph);
 482
 483     },
 484
 485     onMouseDown : function(e)
 486     {
 487         e.stopEvent();
 488
 489         this.dragable = true;
 490         this.pinching = false;
 491
 492         if(this.isDocument && (this.canvasEl.width < this.thumbEl.getWidth() || this.canvasEl.height < this.thumbEl.getHeight())){
 493             this.dragable = false;
 494             return;
 495         }
 496
 497         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 498         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 499
 500     },
 501
 502     onMouseMove : function(e)
 503     {
 504         e.stopEvent();
 505
 506         if(!this.canvasLoaded){
 507             return;
 508         }
 509
 510         if (!this.dragable){
 511             return;
 512         }
 513
 514         var minX = Math.ceil(this.thumbEl.getLeft(true));
 515         var minY = Math.ceil(this.thumbEl.getTop(true));
 516
 517         var maxX = Math.ceil(minX + this.thumbEl.getWidth() - this.canvasEl.width);
 518         var maxY = Math.ceil(minY + this.thumbEl.getHeight() - this.canvasEl.height);
 519
 520         var x = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 521         var y = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 522
 523         x = x - this.mouseX;
 524         y = y - this.mouseY;
 525
 526         var bgX = Math.ceil(x + this.previewEl.getLeft(true));
 527         var bgY = Math.ceil(y + this.previewEl.getTop(true));
 528
 529         bgX = (minX < bgX) ? minX : ((maxX > bgX) ? maxX : bgX);
 530         bgY = (minY < bgY) ? minY : ((maxY > bgY) ? maxY : bgY);
 531
 532         this.previewEl.setLeft(bgX);
 533         this.previewEl.setTop(bgY);
 534
 535         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 536         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 537     },
 538
 539     onMouseUp : function(e)
 540     {
 541         e.stopEvent();
 542
 543         this.dragable = false;
 544     },
 545
 546     onMouseWheel : function(e)
 547     {
 548         e.stopEvent();
 549
 550         this.startScale = this.scale;
 551         this.scale = (e.getWheelDelta() == 1) ? (this.scale + 1) : (this.scale - 1);
 552         if(!this.zoomable()){
 553             this.scale = this.startScale;
 554             return;
 555         }
 556
 557         this.draw();
 558
 559         return;
 560     },
 561
 562     zoomable : function()
 563     {
 564         var minScale = this.thumbEl.getWidth() / this.minWidth;
 565
 566         if(this.minWidth < this.minHeight){
 567             minScale = this.thumbEl.getHeight() / this.minHeight;
 568         }
 569
 570         var width = Math.ceil(this.imageEl.OriginWidth * this.getScaleLevel() / minScale);
 571         var height = Math.ceil(this.imageEl.OriginHeight * this.getScaleLevel() / minScale);
 572
 573         var maxWidth = this.imageEl.OriginWidth;
 574         var maxHeight = this.imageEl.OriginHeight;
 575
 576         if(
 577                 this.isDocument &&
 578                 (this.rotate == 0 || this.rotate == 180) &&
 579                 (
 580                     width > this.imageEl.OriginWidth ||
 581                     height > this.imageEl.OriginHeight ||
 582                     (width < this.minWidth && height < this.minHeight)
 583                 )
 584         ){
 585             return false;
 586         }
 587
 588         if(
 589                 this.isDocument &&
 590                 (this.rotate == 90 || this.rotate == 270) &&
 591                 (
 592                     width > this.imageEl.OriginWidth ||
 593                     height > this.imageEl.OriginHeight ||
 594                     (width < this.minHeight && height < this.minWidth)
 595                 )
 596         ){
 597             return false;
 598         }
 599
 600         if(
 601                 !this.isDocument &&
 602                 (this.rotate == 0 || this.rotate == 180) &&
 603                 (
 604                     width < this.minWidth ||
 605                     height < this.minHeight ||
 606                     width > maxWidth ||
 607                     height > maxHeight
 608                 )
 609         ){
 610             return false;
 611         }
 612
 613         if(
 614                 !this.isDocument &&
 615                 (this.rotate == 90 || this.rotate == 270) &&
 616                 (
 617                     width < this.minHeight ||
 618                     width > this.imageEl.OriginWidth ||
 619                     height < this.minWidth ||
 620                     height > this.imageEl.OriginHeight
 621                 )
 622         ){
 623             return false;
 624         }
 625
 626         return true;
 627
 628     },
 629
 630     onRotateLeft : function(e)
 631     {
 632         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 633
 634             var minScale = this.thumbEl.getWidth() / this.minWidth;
 635
 636             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 637             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 638
 639             this.startScale = this.scale;
 640
 641             while (this.getScaleLevel() < minScale){
 642
 643                 this.scale = this.scale + 1;
 644
 645                 if(!this.zoomable()){
 646                     break;
 647                 }
 648
 649                 if(
 650                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 651                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 652                 ){
 653                     continue;
 654                 }
 655
 656                 this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 657
 658                 this.draw();
 659
 660                 return;
 661             }
 662
 663             this.scale = this.startScale;
 664
 665             this.onRotateFail();
 666
 667             return false;
 668         }
 669
 670         this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 671
 672         if(this.isDocument){
 673             this.setThumbBoxSize();
 674             this.setThumbBoxPosition();
 675             this.setCanvasPosition();
 676         }
 677
 678         this.draw();
 679
 680         this.fireEvent('rotate', this, 'left');
 681
 682     },
 683
 684     onRotateRight : function(e)
 685     {
 686         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 687
 688             var minScale = this.thumbEl.getWidth() / this.minWidth;
 689
 690             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 691             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 692
 693             this.startScale = this.scale;
 694
 695             while (this.getScaleLevel() < minScale){
 696
 697                 this.scale = this.scale + 1;
 698
 699                 if(!this.zoomable()){
 700                     break;
 701                 }
 702
 703                 if(
 704                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 705                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 706                 ){
 707                     continue;
 708                 }
 709
 710                 this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 711
 712                 this.draw();
 713
 714                 return;
 715             }
 716
 717             this.scale = this.startScale;
 718
 719             this.onRotateFail();
 720
 721             return false;
 722         }
 723
 724         this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 725
 726         if(this.isDocument){
 727             this.setThumbBoxSize();
 728             this.setThumbBoxPosition();
 729             this.setCanvasPosition();
 730         }
 731
 732         this.draw();
 733
 734         this.fireEvent('rotate', this, 'right');
 735     },
 736
 737     onRotateFail : function()
 738     {
 739         this.errorEl.show(true);
 740
 741         var _this = this;
 742
 743         (function() { _this.errorEl.hide(true); }).defer(this.errorTimeout);
 744     },
 745
 746     draw : function()
 747     {
 748         this.previewEl.dom.innerHTML = '';
 749
 750         var canvasEl = document.createElement("canvas");
 751
 752         var contextEl = canvasEl.getContext("2d");
 753
 754         canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 755         canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 756         var center = this.imageEl.OriginWidth / 2;
 757
 758         if(this.imageEl.OriginWidth < this.imageEl.OriginHeight){
 759             canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 760             canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 761             center = this.imageEl.OriginHeight / 2;
 762         }
 763
 764         contextEl.scale(this.getScaleLevel(), this.getScaleLevel());
 765
 766         contextEl.translate(center, center);
 767         contextEl.rotate(this.rotate * Math.PI / 180);
 768
 769         contextEl.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 770
 771         this.canvasEl = document.createElement("canvas");
 772
 773         this.contextEl = this.canvasEl.getContext("2d");
 774
 775         switch (this.rotate) {
 776             case 0 :
 777
 778                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 779                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 780
 781                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 782
 783                 break;
 784             case 90 :
 785
 786                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 787                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 788
 789                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 790                     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);
 791                     break;
 792                 }
 793
 794                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 795
 796                 break;
 797             case 180 :
 798
 799                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 800                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 801
 802                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 803                     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);
 804                     break;
 805                 }
 806
 807                 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);
 808
 809                 break;
 810             case 270 :
 811
 812                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 813                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 814
 815                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 816                     this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 817                     break;
 818                 }
 819
 820                 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);
 821
 822                 break;
 823             default :
 824                 break;
 825         }
 826
 827         this.previewEl.appendChild(this.canvasEl);
 828
 829         this.setCanvasPosition();
 830     },
 831
 832     crop : function()
 833     {
 834         if(!this.canvasLoaded){
 835             return;
 836         }
 837
 838         var imageCanvas = document.createElement("canvas");
 839
 840         var imageContext = imageCanvas.getContext("2d");
 841
 842         imageCanvas.width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 843         imageCanvas.height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 844
 845         var center = imageCanvas.width / 2;
 846
 847         imageContext.translate(center, center);
 848
 849         imageContext.rotate(this.rotate * Math.PI / 180);
 850
 851         imageContext.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 852
 853         var canvas = document.createElement("canvas");
 854
 855         var context = canvas.getContext("2d");
 856
 857         canvas.width = this.minWidth;
 858         canvas.height = this.minHeight;
 859
 860         switch (this.rotate) {
 861             case 0 :
 862
 863                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 864                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 865
 866                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 867                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 868
 869                 var targetWidth = this.minWidth - 2 * x;
 870                 var targetHeight = this.minHeight - 2 * y;
 871
 872                 var scale = 1;
 873
 874                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 875                     scale = targetWidth / width;
 876                 }
 877
 878                 if(x > 0 && y == 0){
 879                     scale = targetHeight / height;
 880                 }
 881
 882                 if(x > 0 && y > 0){
 883                     scale = targetWidth / width;
 884
 885                     if(width < height){
 886                         scale = targetHeight / height;
 887                     }
 888                 }
 889
 890                 context.scale(scale, scale);
 891
 892                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 893                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 894
 895                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 896                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 897
 898                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 899
 900                 break;
 901             case 90 :
 902
 903                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 904                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 905
 906                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 907                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 908
 909                 var targetWidth = this.minWidth - 2 * x;
 910                 var targetHeight = this.minHeight - 2 * y;
 911
 912                 var scale = 1;
 913
 914                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 915                     scale = targetWidth / width;
 916                 }
 917
 918                 if(x > 0 && y == 0){
 919                     scale = targetHeight / height;
 920                 }
 921
 922                 if(x > 0 && y > 0){
 923                     scale = targetWidth / width;
 924
 925                     if(width < height){
 926                         scale = targetHeight / height;
 927                     }
 928                 }
 929
 930                 context.scale(scale, scale);
 931
 932                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 933                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 934
 935                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 936                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 937
 938                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 939
 940                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 941
 942                 break;
 943             case 180 :
 944
 945                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 946                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 947
 948                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 949                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 950
 951                 var targetWidth = this.minWidth - 2 * x;
 952                 var targetHeight = this.minHeight - 2 * y;
 953
 954                 var scale = 1;
 955
 956                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 957                     scale = targetWidth / width;
 958                 }
 959
 960                 if(x > 0 && y == 0){
 961                     scale = targetHeight / height;
 962                 }
 963
 964                 if(x > 0 && y > 0){
 965                     scale = targetWidth / width;
 966
 967                     if(width < height){
 968                         scale = targetHeight / height;
 969                     }
 970                 }
 971
 972                 context.scale(scale, scale);
 973
 974                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 975                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 976
 977                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 978                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 979
 980                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
 981                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 982
 983                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 984
 985                 break;
 986             case 270 :
 987
 988                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 989                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 990
 991                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 992                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 993
 994                 var targetWidth = this.minWidth - 2 * x;
 995                 var targetHeight = this.minHeight - 2 * y;
 996
 997                 var scale = 1;
 998
 999                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1000                     scale = targetWidth / width;
1001                 }
1002
1003                 if(x > 0 && y == 0){
1004                     scale = targetHeight / height;
1005                 }
1006
1007                 if(x > 0 && y > 0){
1008                     scale = targetWidth / width;
1009
1010                     if(width < height){
1011                         scale = targetHeight / height;
1012                     }
1013                 }
1014
1015                 context.scale(scale, scale);
1016
1017                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1018                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1019
1020                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1021                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1022
1023                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1024
1025                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1026
1027                 break;
1028             default :
1029                 break;
1030         }
1031
1032         this.cropData = canvas.toDataURL(this.cropType);
1033
1034         if(this.fireEvent('crop', this, this.cropData) !== false){
1035             this.process(this.file, this.cropData);
1036         }
1037
1038         return;
1039
1040     },
1041
1042     setThumbBoxSize : function()
1043     {
1044         var width, height;
1045
1046         if(this.isDocument && typeof(this.imageEl) != 'undefined'){
1047             width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.max(this.minWidth, this.minHeight) : Math.min(this.minWidth, this.minHeight);
1048             height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.min(this.minWidth, this.minHeight) : Math.max(this.minWidth, this.minHeight);
1049
1050             this.minWidth = width;
1051             this.minHeight = height;
1052
1053             if(this.rotate == 90 || this.rotate == 270){
1054                 this.minWidth = height;
1055                 this.minHeight = width;
1056             }
1057         }
1058
1059         height = 300;
1060         width = Math.ceil(this.minWidth * height / this.minHeight);
1061
1062         if(this.minWidth > this.minHeight){
1063             width = 300;
1064             height = Math.ceil(this.minHeight * width / this.minWidth);
1065         }
1066
1067         this.thumbEl.setStyle({
1068             width : width + 'px',
1069             height : height + 'px'
1070         });
1071
1072         return;
1073
1074     },
1075
1076     setThumbBoxPosition : function()
1077     {
1078         console.log("SET THUMBBOX POSITION");
1079         var x = Math.ceil((this.bodyEl.getWidth() - this.thumbEl.getWidth()) / 2 );
1080         var y = Math.ceil((this.bodyEl.getHeight() - this.thumbEl.getHeight()) / 2);
1081
1082         this.thumbEl.setLeft(x);
1083         this.thumbEl.setTop(y);
1084
1085     },
1086
1087     baseRotateLevel : function()
1088     {
1089         console.log("BASE ROTATE LEVEL");
1090         this.baseRotate = 1;
1091
1092         if(
1093                 typeof(this.exif) != 'undefined' &&
1094                 typeof(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != 'undefined' &&
1095                 [1, 3, 6, 8].indexOf(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != -1
1096         ){
1097             this.baseRotate = this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']];
1098         }
1099
1100         this.rotate = Roo.dialog.UploadCropbox['Orientation'][this.baseRotate];
1101
1102     },
1103
1104     baseScaleLevel : function()
1105     {
1106         var width, height;
1107
1108         if(this.isDocument){
1109
1110             if(this.baseRotate == 6 || this.baseRotate == 8){
1111
1112                 height = this.thumbEl.getHeight();
1113                 this.baseScale = height / this.imageEl.OriginWidth;
1114
1115                 if(this.imageEl.OriginHeight * this.baseScale > this.thumbEl.getWidth()){
1116                     width = this.thumbEl.getWidth();
1117                     this.baseScale = width / this.imageEl.OriginHeight;
1118                 }
1119
1120                 return;
1121             }
1122
1123             height = this.thumbEl.getHeight();
1124             this.baseScale = height / this.imageEl.OriginHeight;
1125
1126             if(this.imageEl.OriginWidth * this.baseScale > this.thumbEl.getWidth()){
1127                 width = this.thumbEl.getWidth();
1128                 this.baseScale = width / this.imageEl.OriginWidth;
1129             }
1130
1131             return;
1132         }
1133
1134         if(this.baseRotate == 6 || this.baseRotate == 8){
1135
1136             width = this.thumbEl.getHeight();
1137             this.baseScale = width / this.imageEl.OriginHeight;
1138
1139             if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getWidth()){
1140                 height = this.thumbEl.getWidth();
1141                 this.baseScale = height / this.imageEl.OriginHeight;
1142             }
1143
1144             if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1145                 height = this.thumbEl.getWidth();
1146                 this.baseScale = height / this.imageEl.OriginHeight;
1147
1148                 if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getHeight()){
1149                     width = this.thumbEl.getHeight();
1150                     this.baseScale = width / this.imageEl.OriginWidth;
1151                 }
1152             }
1153
1154             return;
1155         }
1156
1157         width = this.thumbEl.getWidth();
1158         this.baseScale = width / this.imageEl.OriginWidth;
1159
1160         if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getHeight()){
1161             height = this.thumbEl.getHeight();
1162             this.baseScale = height / this.imageEl.OriginHeight;
1163         }
1164
1165         if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1166
1167             height = this.thumbEl.getHeight();
1168             this.baseScale = height / this.imageEl.OriginHeight;
1169
1170             if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getWidth()){
1171                 width = this.thumbEl.getWidth();
1172                 this.baseScale = width / this.imageEl.OriginWidth;
1173             }
1174
1175         }
1176
1177         return;
1178     },
1179
1180     getScaleLevel : function()
1181     {
1182         return this.baseScale * Math.pow(1.02, this.scale);
1183     },
1184
1185     onTouchStart : function(e)
1186     {
1187         if(!this.canvasLoaded){
1188             this.beforeSelectFile(e);
1189             return;
1190         }
1191
1192         var touches = e.browserEvent.touches;
1193
1194         if(!touches){
1195             return;
1196         }
1197
1198         if(touches.length == 1){
1199             this.onMouseDown(e);
1200             return;
1201         }
1202
1203         if(touches.length != 2){
1204             return;
1205         }
1206
1207         var coords = [];
1208
1209         for(var i = 0, finger; finger = touches[i]; i++){
1210             coords.push(finger.pageX, finger.pageY);
1211         }
1212
1213         var x = Math.pow(coords[0] - coords[2], 2);
1214         var y = Math.pow(coords[1] - coords[3], 2);
1215
1216         this.startDistance = Math.sqrt(x + y);
1217
1218         this.startScale = this.scale;
1219
1220         this.pinching = true;
1221         this.dragable = false;
1222
1223     },
1224
1225     onTouchMove : function(e)
1226     {
1227         if(!this.pinching && !this.dragable){
1228             return;
1229         }
1230
1231         var touches = e.browserEvent.touches;
1232
1233         if(!touches){
1234             return;
1235         }
1236
1237         if(this.dragable){
1238             this.onMouseMove(e);
1239             return;
1240         }
1241
1242         var coords = [];
1243
1244         for(var i = 0, finger; finger = touches[i]; i++){
1245             coords.push(finger.pageX, finger.pageY);
1246         }
1247
1248         var x = Math.pow(coords[0] - coords[2], 2);
1249         var y = Math.pow(coords[1] - coords[3], 2);
1250
1251         this.endDistance = Math.sqrt(x + y);
1252
1253         this.scale = this.startScale + Math.floor(Math.log(this.endDistance / this.startDistance) / Math.log(1.1));
1254
1255         if(!this.zoomable()){
1256             this.scale = this.startScale;
1257             return;
1258         }
1259
1260         this.draw();
1261
1262     },
1263
1264     onTouchEnd : function(e)
1265     {
1266         this.pinching = false;
1267         this.dragable = false;
1268
1269     },
1270
1271     process : function(file, crop)
1272     {
1273         if(this.loadMask){
1274             this.maskEl.mask(this.loadingText);
1275         }
1276
1277         this.xhr = new XMLHttpRequest();
1278
1279         file.xhr = this.xhr;
1280
1281         this.xhr.open(this.method, this.url, true);
1282
1283         var headers = {
1284             "Accept": "application/json",
1285             "Cache-Control": "no-cache",
1286             "X-Requested-With": "XMLHttpRequest"
1287         };
1288
1289         for (var headerName in headers) {
1290             var headerValue = headers[headerName];
1291             if (headerValue) {
1292                 this.xhr.setRequestHeader(headerName, headerValue);
1293             }
1294         }
1295
1296         var _this = this;
1297
1298         this.xhr.onload = function()
1299         {
1300             _this.xhrOnLoad(_this.xhr);
1301         }
1302
1303         this.xhr.onerror = function()
1304         {
1305             _this.xhrOnError(_this.xhr);
1306         }
1307
1308         var formData = new FormData();
1309
1310         formData.append('returnHTML', 'NO');
1311
1312         if(crop){
1313             formData.append('crop', crop);
1314         }
1315
1316         if(typeof(file) != 'undefined' && (typeof(file.id) == 'undefined' || file.id * 1 < 1)){
1317             formData.append(this.paramName, file, file.name);
1318         }
1319
1320         if(typeof(file.filename) != 'undefined'){
1321             formData.append('filename', file.filename);
1322         }
1323
1324         if(typeof(file.mimetype) != 'undefined'){
1325             formData.append('mimetype', file.mimetype);
1326         }
1327
1328         if(this.fireEvent('arrange', this, formData) != false){
1329             this.xhr.send(formData);
1330         };
1331     },
1332
1333     xhrOnLoad : function(xhr)
1334     {
1335         if(this.loadMask){
1336             this.maskEl.unmask();
1337         }
1338
1339         if (xhr.readyState !== 4) {
1340             this.fireEvent('exception', this, xhr);
1341             return;
1342         }
1343
1344         var response = Roo.decode(xhr.responseText);
1345
1346         if(!response.success){
1347             this.fireEvent('exception', this, xhr);
1348             return;
1349         }
1350
1351         var response = Roo.decode(xhr.responseText);
1352
1353         this.fireEvent('upload', this, response);
1354
1355     },
1356
1357     xhrOnError : function()
1358     {
1359         if(this.loadMask){
1360             this.maskEl.unmask();
1361         }
1362
1363         Roo.log('xhr on error');
1364
1365         var response = Roo.decode(xhr.responseText);
1366
1367         Roo.log(response);
1368
1369     },
1370
1371     prepare : function(file)
1372     {
1373         console.log("PREPARE");
1374         console.log(file);
1375         if(this.loadMask){
1376             this.maskEl.mask(this.loadingText);
1377         }
1378
1379         this.file = false;
1380         this.exif = {};
1381
1382         if(typeof(file) === 'string'){
1383             this.loadCanvas(file);
1384             return;
1385         }
1386
1387         if(!file || !this.urlAPI){
1388             return;
1389         }
1390
1391         this.file = file;
1392         this.cropType = file.type;
1393
1394         var _this = this;
1395
1396         if(this.fireEvent('prepare', this, this.file) != false){
1397
1398             var reader = new FileReader();
1399
1400             reader.onload = function (e) {
1401                 if (e.target.error) {
1402                     Roo.log(e.target.error);
1403                     return;
1404                 }
1405
1406                 var buffer = e.target.result,
1407                     dataView = new DataView(buffer),
1408                     offset = 2,
1409                     maxOffset = dataView.byteLength - 4,
1410                     markerBytes,
1411                     markerLength;
1412
1413                 if (dataView.getUint16(0) === 0xffd8) {
1414                     while (offset < maxOffset) {
1415                         markerBytes = dataView.getUint16(offset);
1416
1417                         if ((markerBytes >= 0xffe0 && markerBytes <= 0xffef) || markerBytes === 0xfffe) {
1418                             markerLength = dataView.getUint16(offset + 2) + 2;
1419                             if (offset + markerLength > dataView.byteLength) {
1420                                 Roo.log('Invalid meta data: Invalid segment size.');
1421                                 break;
1422                             }
1423
1424                             if(markerBytes == 0xffe1){
1425                                 _this.parseExifData(
1426                                     dataView,
1427                                     offset,
1428                                     markerLength
1429                                 );
1430                             }
1431
1432                             offset += markerLength;
1433
1434                             continue;
1435                         }
1436
1437                         break;
1438                     }
1439
1440                 }
1441
1442                 var url = _this.urlAPI.createObjectURL(_this.file);
1443
1444                 _this.loadCanvas(url);
1445
1446                 return;
1447             }
1448
1449             reader.readAsArrayBuffer(this.file);
1450
1451         }
1452
1453     },
1454
1455     parseExifData : function(dataView, offset, length)
1456     {
1457         var tiffOffset = offset + 10,
1458             littleEndian,
1459             dirOffset;
1460
1461         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1462             // No Exif data, might be XMP data instead
1463             return;
1464         }
1465
1466         // Check for the ASCII code for "Exif" (0x45786966):
1467         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1468             // No Exif data, might be XMP data instead
1469             return;
1470         }
1471         if (tiffOffset + 8 > dataView.byteLength) {
1472             Roo.log('Invalid Exif data: Invalid segment size.');
1473             return;
1474         }
1475         // Check for the two null bytes:
1476         if (dataView.getUint16(offset + 8) !== 0x0000) {
1477             Roo.log('Invalid Exif data: Missing byte alignment offset.');
1478             return;
1479         }
1480         // Check the byte alignment:
1481         switch (dataView.getUint16(tiffOffset)) {
1482         case 0x4949:
1483             littleEndian = true;
1484             break;
1485         case 0x4D4D:
1486             littleEndian = false;
1487             break;
1488         default:
1489             Roo.log('Invalid Exif data: Invalid byte alignment marker.');
1490             return;
1491         }
1492         // Check for the TIFF tag marker (0x002A):
1493         if (dataView.getUint16(tiffOffset + 2, littleEndian) !== 0x002A) {
1494             Roo.log('Invalid Exif data: Missing TIFF marker.');
1495             return;
1496         }
1497         // Retrieve the directory offset bytes, usually 0x00000008 or 8 decimal:
1498         dirOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
1499
1500         this.parseExifTags(
1501             dataView,
1502             tiffOffset,
1503             tiffOffset + dirOffset,
1504             littleEndian
1505         );
1506     },
1507
1508     parseExifTags : function(dataView, tiffOffset, dirOffset, littleEndian)
1509     {
1510         var tagsNumber,
1511             dirEndOffset,
1512             i;
1513         if (dirOffset + 6 > dataView.byteLength) {
1514             Roo.log('Invalid Exif data: Invalid directory offset.');
1515             return;
1516         }
1517         tagsNumber = dataView.getUint16(dirOffset, littleEndian);
1518         dirEndOffset = dirOffset + 2 + 12 * tagsNumber;
1519         if (dirEndOffset + 4 > dataView.byteLength) {
1520             Roo.log('Invalid Exif data: Invalid directory size.');
1521             return;
1522         }
1523         for (i = 0; i < tagsNumber; i += 1) {
1524             this.parseExifTag(
1525                 dataView,
1526                 tiffOffset,
1527                 dirOffset + 2 + 12 * i, // tag offset
1528                 littleEndian
1529             );
1530         }
1531         // Return the offset to the next directory:
1532         return dataView.getUint32(dirEndOffset, littleEndian);
1533     },
1534
1535     parseExifTag : function (dataView, tiffOffset, offset, littleEndian)
1536     {
1537         var tag = dataView.getUint16(offset, littleEndian);
1538
1539         this.exif[tag] = this.getExifValue(
1540             dataView,
1541             tiffOffset,
1542             offset,
1543             dataView.getUint16(offset + 2, littleEndian), // tag type
1544             dataView.getUint32(offset + 4, littleEndian), // tag length
1545             littleEndian
1546         );
1547     },
1548
1549     getExifValue : function (dataView, tiffOffset, offset, type, length, littleEndian)
1550     {
1551         var tagType = Roo.dialog.UploadCropbox.exifTagTypes[type],
1552             tagSize,
1553             dataOffset,
1554             values,
1555             i,
1556             str,
1557             c;
1558
1559         if (!tagType) {
1560             Roo.log('Invalid Exif data: Invalid tag type.');
1561             return;
1562         }
1563
1564         tagSize = tagType.size * length;
1565         // Determine if the value is contained in the dataOffset bytes,
1566         // or if the value at the dataOffset is a pointer to the actual data:
1567         dataOffset = tagSize > 4 ?
1568                 tiffOffset + dataView.getUint32(offset + 8, littleEndian) : (offset + 8);
1569         if (dataOffset + tagSize > dataView.byteLength) {
1570             Roo.log('Invalid Exif data: Invalid data offset.');
1571             return;
1572         }
1573         if (length === 1) {
1574             return tagType.getValue(dataView, dataOffset, littleEndian);
1575         }
1576         values = [];
1577         for (i = 0; i < length; i += 1) {
1578             values[i] = tagType.getValue(dataView, dataOffset + i * tagType.size, littleEndian);
1579         }
1580
1581         if (tagType.ascii) {
1582             str = '';
1583             // Concatenate the chars:
1584             for (i = 0; i < values.length; i += 1) {
1585                 c = values[i];
1586                 // Ignore the terminating NULL byte(s):
1587                 if (c === '\u0000') {
1588                     break;
1589                 }
1590                 str += c;
1591             }
1592             return str;
1593         }
1594         return values;
1595     }
1596
1597 });
1598
1599 Roo.apply(Roo.dialog.UploadCropbox, {
1600     tags : {
1601         'Orientation': 0x0112
1602     },
1603
1604     Orientation: {
1605             1: 0, //'top-left',
1606 //            2: 'top-right',
1607             3: 180, //'bottom-right',
1608 //            4: 'bottom-left',
1609 //            5: 'left-top',
1610             6: 90, //'right-top',
1611 //            7: 'right-bottom',
1612             8: 270 //'left-bottom'
1613     },
1614
1615     exifTagTypes : {
1616         // byte, 8-bit unsigned int:
1617         1: {
1618             getValue: function (dataView, dataOffset) {
1619                 return dataView.getUint8(dataOffset);
1620             },
1621             size: 1
1622         },
1623         // ascii, 8-bit byte:
1624         2: {
1625             getValue: function (dataView, dataOffset) {
1626                 return String.fromCharCode(dataView.getUint8(dataOffset));
1627             },
1628             size: 1,
1629             ascii: true
1630         },
1631         // short, 16 bit int:
1632         3: {
1633             getValue: function (dataView, dataOffset, littleEndian) {
1634                 return dataView.getUint16(dataOffset, littleEndian);
1635             },
1636             size: 2
1637         },
1638         // long, 32 bit int:
1639         4: {
1640             getValue: function (dataView, dataOffset, littleEndian) {
1641                 return dataView.getUint32(dataOffset, littleEndian);
1642             },
1643             size: 4
1644         },
1645         // rational = two long values, first is numerator, second is denominator:
1646         5: {
1647             getValue: function (dataView, dataOffset, littleEndian) {
1648                 return dataView.getUint32(dataOffset, littleEndian) /
1649                     dataView.getUint32(dataOffset + 4, littleEndian);
1650             },
1651             size: 8
1652         },
1653         // slong, 32 bit signed int:
1654         9: {
1655             getValue: function (dataView, dataOffset, littleEndian) {
1656                 return dataView.getInt32(dataOffset, littleEndian);
1657             },
1658             size: 4
1659         },
1660         // srational, two slongs, first is numerator, second is denominator:
1661         10: {
1662             getValue: function (dataView, dataOffset, littleEndian) {
1663                 return dataView.getInt32(dataOffset, littleEndian) /
1664                     dataView.getInt32(dataOffset + 4, littleEndian);
1665             },
1666             size: 8
1667         }
1668     },
1669
1670     footer : {
1671         STANDARD : [
1672             {
1673                 tag : 'div',
1674                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1675                 action : 'rotate-left',
1676                 cn : [
1677                     {
1678                         tag : 'button',
1679                         cls : 'btn btn-default',
1680                         html : '<i class="fa fa-undo"></i>'
1681                     }
1682                 ]
1683             },
1684             {
1685                 tag : 'div',
1686                 cls : 'btn-group roo-upload-cropbox-picture',
1687                 action : 'picture',
1688                 cn : [
1689                     {
1690                         tag : 'button',
1691                         cls : 'btn btn-default',
1692                         html : '<i class="fa fa-picture-o"></i>'
1693                     }
1694                 ]
1695             },
1696             {
1697                 tag : 'div',
1698                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1699                 action : 'rotate-right',
1700                 cn : [
1701                     {
1702                         tag : 'button',
1703                         cls : 'btn btn-default',
1704                         html : '<i class="fa fa-repeat"></i>'
1705                     }
1706                 ]
1707             }
1708         ],
1709         DOCUMENT : [
1710             {
1711                 tag : 'div',
1712                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1713                 action : 'rotate-left',
1714                 cn : [
1715                     {
1716                         tag : 'button',
1717                         cls : 'btn btn-default',
1718                         html : '<i class="fa fa-undo"></i>'
1719                     }
1720                 ]
1721             },
1722             {
1723                 tag : 'div',
1724                 cls : 'btn-group roo-upload-cropbox-download',
1725                 action : 'download',
1726                 cn : [
1727                     {
1728                         tag : 'button',
1729                         cls : 'btn btn-default',
1730                         html : '<i class="fa fa-download"></i>'
1731                     }
1732                 ]
1733             },
1734             {
1735                 tag : 'div',
1736                 cls : 'btn-group roo-upload-cropbox-crop',
1737                 action : 'crop',
1738                 cn : [
1739                     {
1740                         tag : 'button',
1741                         cls : 'btn btn-default',
1742                         html : '<i class="fa fa-crop"></i>'
1743                     }
1744                 ]
1745             },
1746             {
1747                 tag : 'div',
1748                 cls : 'btn-group roo-upload-cropbox-trash',
1749                 action : 'trash',
1750                 cn : [
1751                     {
1752                         tag : 'button',
1753                         cls : 'btn btn-default',
1754                         html : '<i class="fa fa-trash"></i>'
1755                     }
1756                 ]
1757             },
1758             {
1759                 tag : 'div',
1760                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1761                 action : 'rotate-right',
1762                 cn : [
1763                     {
1764                         tag : 'button',
1765                         cls : 'btn btn-default',
1766                         html : '<i class="fa fa-repeat"></i>'
1767                     }
1768                 ]
1769             }
1770         ],
1771         ROTATOR : [
1772             {
1773                 tag : 'div',
1774                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1775                 action : 'rotate-left',
1776                 cn : [
1777                     {
1778                         tag : 'button',
1779                         cls : 'btn btn-default',
1780                         html : '<i class="fa fa-undo"></i>'
1781                     }
1782                 ]
1783             },
1784             {
1785                 tag : 'div',
1786                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1787                 action : 'rotate-right',
1788                 cn : [
1789                     {
1790                         tag : 'button',
1791                         cls : 'btn btn-default',
1792                         html : '<i class="fa fa-repeat"></i>'
1793                     }
1794                 ]
1795             }
1796         ]
1797     }
1798 });