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