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         console.log("SET CANVAS POSITION");
 474         if(!this.canvasEl){
 475             return;
 476         }
 477
 478         var pw = Math.ceil((this.bodyEl.getWidth() - this.canvasEl.width) / 2);
 479         var ph = Math.ceil((this.bodyEl.getHeight() - this.canvasEl.height) / 2);
 480
 481         this.previewEl.setLeft(pw);
 482         this.previewEl.setTop(ph);
 483
 484     },
 485
 486     onMouseDown : function(e)
 487     {
 488         e.stopEvent();
 489
 490         this.dragable = true;
 491         this.pinching = false;
 492
 493         if(this.isDocument && (this.canvasEl.width < this.thumbEl.getWidth() || this.canvasEl.height < this.thumbEl.getHeight())){
 494             this.dragable = false;
 495             return;
 496         }
 497
 498         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 499         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 500
 501     },
 502
 503     onMouseMove : function(e)
 504     {
 505         e.stopEvent();
 506
 507         if(!this.canvasLoaded){
 508             return;
 509         }
 510
 511         if (!this.dragable){
 512             return;
 513         }
 514
 515         var minX = Math.ceil(this.thumbEl.getLeft(true));
 516         var minY = Math.ceil(this.thumbEl.getTop(true));
 517
 518         var maxX = Math.ceil(minX + this.thumbEl.getWidth() - this.canvasEl.width);
 519         var maxY = Math.ceil(minY + this.thumbEl.getHeight() - this.canvasEl.height);
 520
 521         var x = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 522         var y = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 523
 524         x = x - this.mouseX;
 525         y = y - this.mouseY;
 526
 527         var bgX = Math.ceil(x + this.previewEl.getLeft(true));
 528         var bgY = Math.ceil(y + this.previewEl.getTop(true));
 529
 530         bgX = (minX < bgX) ? minX : ((maxX > bgX) ? maxX : bgX);
 531         bgY = (minY < bgY) ? minY : ((maxY > bgY) ? maxY : bgY);
 532
 533         this.previewEl.setLeft(bgX);
 534         this.previewEl.setTop(bgY);
 535
 536         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 537         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 538     },
 539
 540     onMouseUp : function(e)
 541     {
 542         e.stopEvent();
 543
 544         this.dragable = false;
 545     },
 546
 547     onMouseWheel : function(e)
 548     {
 549         e.stopEvent();
 550
 551         this.startScale = this.scale;
 552         this.scale = (e.getWheelDelta() == 1) ? (this.scale + 1) : (this.scale - 1);
 553         if(!this.zoomable()){
 554             this.scale = this.startScale;
 555             return;
 556         }
 557
 558         this.draw();
 559
 560         return;
 561     },
 562
 563     zoomable : function()
 564     {
 565         var minScale = this.thumbEl.getWidth() / this.minWidth;
 566
 567         if(this.minWidth < this.minHeight){
 568             minScale = this.thumbEl.getHeight() / this.minHeight;
 569         }
 570
 571         var width = Math.ceil(this.imageEl.OriginWidth * this.getScaleLevel() / minScale);
 572         var height = Math.ceil(this.imageEl.OriginHeight * this.getScaleLevel() / minScale);
 573
 574         var maxWidth = this.imageEl.OriginWidth;
 575         var maxHeight = this.imageEl.OriginHeight;
 576
 577         if(
 578                 this.isDocument &&
 579                 (this.rotate == 0 || this.rotate == 180) &&
 580                 (
 581                     width > this.imageEl.OriginWidth ||
 582                     height > this.imageEl.OriginHeight ||
 583                     (width < this.minWidth && height < this.minHeight)
 584                 )
 585         ){
 586             return false;
 587         }
 588
 589         if(
 590                 this.isDocument &&
 591                 (this.rotate == 90 || this.rotate == 270) &&
 592                 (
 593                     width > this.imageEl.OriginWidth ||
 594                     height > this.imageEl.OriginHeight ||
 595                     (width < this.minHeight && height < this.minWidth)
 596                 )
 597         ){
 598             return false;
 599         }
 600
 601         if(
 602                 !this.isDocument &&
 603                 (this.rotate == 0 || this.rotate == 180) &&
 604                 (
 605                     width < this.minWidth ||
 606                     height < this.minHeight ||
 607                     width > maxWidth ||
 608                     height > maxHeight
 609                 )
 610         ){
 611             return false;
 612         }
 613
 614         if(
 615                 !this.isDocument &&
 616                 (this.rotate == 90 || this.rotate == 270) &&
 617                 (
 618                     width < this.minHeight ||
 619                     width > this.imageEl.OriginWidth ||
 620                     height < this.minWidth ||
 621                     height > this.imageEl.OriginHeight
 622                 )
 623         ){
 624             return false;
 625         }
 626
 627         return true;
 628
 629     },
 630
 631     onRotateLeft : function(e)
 632     {
 633         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 634
 635             var minScale = this.thumbEl.getWidth() / this.minWidth;
 636
 637             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 638             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 639
 640             this.startScale = this.scale;
 641
 642             while (this.getScaleLevel() < minScale){
 643
 644                 this.scale = this.scale + 1;
 645
 646                 if(!this.zoomable()){
 647                     break;
 648                 }
 649
 650                 if(
 651                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 652                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 653                 ){
 654                     continue;
 655                 }
 656
 657                 this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 658
 659                 this.draw();
 660
 661                 return;
 662             }
 663
 664             this.scale = this.startScale;
 665
 666             this.onRotateFail();
 667
 668             return false;
 669         }
 670
 671         this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 672
 673         if(this.isDocument){
 674             this.setThumbBoxSize();
 675             this.setThumbBoxPosition();
 676             this.setCanvasPosition();
 677         }
 678
 679         this.draw();
 680
 681         this.fireEvent('rotate', this, 'left');
 682
 683     },
 684
 685     onRotateRight : function(e)
 686     {
 687         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 688
 689             var minScale = this.thumbEl.getWidth() / this.minWidth;
 690
 691             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 692             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 693
 694             this.startScale = this.scale;
 695
 696             while (this.getScaleLevel() < minScale){
 697
 698                 this.scale = this.scale + 1;
 699
 700                 if(!this.zoomable()){
 701                     break;
 702                 }
 703
 704                 if(
 705                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 706                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 707                 ){
 708                     continue;
 709                 }
 710
 711                 this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 712
 713                 this.draw();
 714
 715                 return;
 716             }
 717
 718             this.scale = this.startScale;
 719
 720             this.onRotateFail();
 721
 722             return false;
 723         }
 724
 725         this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 726
 727         if(this.isDocument){
 728             this.setThumbBoxSize();
 729             this.setThumbBoxPosition();
 730             this.setCanvasPosition();
 731         }
 732
 733         this.draw();
 734
 735         this.fireEvent('rotate', this, 'right');
 736     },
 737
 738     onRotateFail : function()
 739     {
 740         this.errorEl.show(true);
 741
 742         var _this = this;
 743
 744         (function() { _this.errorEl.hide(true); }).defer(this.errorTimeout);
 745     },
 746
 747     draw : function()
 748     {
 749         console.log("DRAW");
 750         this.previewEl.dom.innerHTML = '';
 751
 752         var canvasEl = document.createElement("canvas");
 753
 754         var contextEl = canvasEl.getContext("2d");
 755
 756         console.log(this.getScaleLevel());
 757
 758         canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 759         canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 760         var center = this.imageEl.OriginWidth / 2;
 761
 762         if(this.imageEl.OriginWidth < this.imageEl.OriginHeight){
 763             canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 764             canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 765             center = this.imageEl.OriginHeight / 2;
 766         }
 767
 768         contextEl.scale(this.getScaleLevel(), this.getScaleLevel());
 769
 770         contextEl.translate(center, center);
 771         contextEl.rotate(this.rotate * Math.PI / 180);
 772
 773         contextEl.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 774
 775         this.canvasEl = document.createElement("canvas");
 776
 777         this.contextEl = this.canvasEl.getContext("2d");
 778
 779         switch (this.rotate) {
 780             case 0 :
 781
 782                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 783                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 784
 785                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 786
 787                 break;
 788             case 90 :
 789
 790                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 791                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 792
 793                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 794                     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);
 795                     break;
 796                 }
 797
 798                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 799
 800                 break;
 801             case 180 :
 802
 803                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 804                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 805
 806                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 807                     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);
 808                     break;
 809                 }
 810
 811                 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);
 812
 813                 break;
 814             case 270 :
 815
 816                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 817                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 818
 819                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 820                     this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 821                     break;
 822                 }
 823
 824                 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);
 825
 826                 break;
 827             default :
 828                 break;
 829         }
 830
 831         this.previewEl.appendChild(this.canvasEl);
 832
 833         this.setCanvasPosition();
 834     },
 835
 836     crop : function()
 837     {
 838         if(!this.canvasLoaded){
 839             return;
 840         }
 841
 842         var imageCanvas = document.createElement("canvas");
 843
 844         var imageContext = imageCanvas.getContext("2d");
 845
 846         imageCanvas.width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 847         imageCanvas.height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 848
 849         var center = imageCanvas.width / 2;
 850
 851         imageContext.translate(center, center);
 852
 853         imageContext.rotate(this.rotate * Math.PI / 180);
 854
 855         imageContext.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 856
 857         var canvas = document.createElement("canvas");
 858
 859         var context = canvas.getContext("2d");
 860
 861         canvas.width = this.minWidth;
 862         canvas.height = this.minHeight;
 863
 864         switch (this.rotate) {
 865             case 0 :
 866
 867                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 868                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 869
 870                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 871                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 872
 873                 var targetWidth = this.minWidth - 2 * x;
 874                 var targetHeight = this.minHeight - 2 * y;
 875
 876                 var scale = 1;
 877
 878                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 879                     scale = targetWidth / width;
 880                 }
 881
 882                 if(x > 0 && y == 0){
 883                     scale = targetHeight / height;
 884                 }
 885
 886                 if(x > 0 && y > 0){
 887                     scale = targetWidth / width;
 888
 889                     if(width < height){
 890                         scale = targetHeight / height;
 891                     }
 892                 }
 893
 894                 context.scale(scale, scale);
 895
 896                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 897                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 898
 899                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 900                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 901
 902                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 903
 904                 break;
 905             case 90 :
 906
 907                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 908                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 909
 910                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 911                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 912
 913                 var targetWidth = this.minWidth - 2 * x;
 914                 var targetHeight = this.minHeight - 2 * y;
 915
 916                 var scale = 1;
 917
 918                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 919                     scale = targetWidth / width;
 920                 }
 921
 922                 if(x > 0 && y == 0){
 923                     scale = targetHeight / height;
 924                 }
 925
 926                 if(x > 0 && y > 0){
 927                     scale = targetWidth / width;
 928
 929                     if(width < height){
 930                         scale = targetHeight / height;
 931                     }
 932                 }
 933
 934                 context.scale(scale, scale);
 935
 936                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 937                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 938
 939                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 940                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 941
 942                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 943
 944                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 945
 946                 break;
 947             case 180 :
 948
 949                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 950                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 951
 952                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 953                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 954
 955                 var targetWidth = this.minWidth - 2 * x;
 956                 var targetHeight = this.minHeight - 2 * y;
 957
 958                 var scale = 1;
 959
 960                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 961                     scale = targetWidth / width;
 962                 }
 963
 964                 if(x > 0 && y == 0){
 965                     scale = targetHeight / height;
 966                 }
 967
 968                 if(x > 0 && y > 0){
 969                     scale = targetWidth / width;
 970
 971                     if(width < height){
 972                         scale = targetHeight / height;
 973                     }
 974                 }
 975
 976                 context.scale(scale, scale);
 977
 978                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 979                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 980
 981                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 982                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 983
 984                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
 985                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 986
 987                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 988
 989                 break;
 990             case 270 :
 991
 992                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 993                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 994
 995                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 996                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 997
 998                 var targetWidth = this.minWidth - 2 * x;
 999                 var targetHeight = this.minHeight - 2 * y;
1000
1001                 var scale = 1;
1002
1003                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1004                     scale = targetWidth / width;
1005                 }
1006
1007                 if(x > 0 && y == 0){
1008                     scale = targetHeight / height;
1009                 }
1010
1011                 if(x > 0 && y > 0){
1012                     scale = targetWidth / width;
1013
1014                     if(width < height){
1015                         scale = targetHeight / height;
1016                     }
1017                 }
1018
1019                 context.scale(scale, scale);
1020
1021                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1022                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1023
1024                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1025                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1026
1027                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1028
1029                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1030
1031                 break;
1032             default :
1033                 break;
1034         }
1035
1036         this.cropData = canvas.toDataURL(this.cropType);
1037
1038         if(this.fireEvent('crop', this, this.cropData) !== false){
1039             this.process(this.file, this.cropData);
1040         }
1041
1042         return;
1043
1044     },
1045
1046     setThumbBoxSize : function()
1047     {
1048         var width, height;
1049
1050         if(this.isDocument && typeof(this.imageEl) != 'undefined'){
1051             width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.max(this.minWidth, this.minHeight) : Math.min(this.minWidth, this.minHeight);
1052             height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.min(this.minWidth, this.minHeight) : Math.max(this.minWidth, this.minHeight);
1053
1054             this.minWidth = width;
1055             this.minHeight = height;
1056
1057             if(this.rotate == 90 || this.rotate == 270){
1058                 this.minWidth = height;
1059                 this.minHeight = width;
1060             }
1061         }
1062
1063         height = 300;
1064         width = Math.ceil(this.minWidth * height / this.minHeight);
1065
1066         if(this.minWidth > this.minHeight){
1067             width = 300;
1068             height = Math.ceil(this.minHeight * width / this.minWidth);
1069         }
1070
1071         this.thumbEl.setStyle({
1072             width : width + 'px',
1073             height : height + 'px'
1074         });
1075
1076         return;
1077
1078     },
1079
1080     setThumbBoxPosition : function()
1081     {
1082         console.log("SET THUMBBOX POSITION");
1083         var x = Math.ceil((this.bodyEl.getWidth() - this.thumbEl.getWidth()) / 2 );
1084         var y = Math.ceil((this.bodyEl.getHeight() - this.thumbEl.getHeight()) / 2);
1085
1086         this.thumbEl.setLeft(x);
1087         this.thumbEl.setTop(y);
1088
1089     },
1090
1091     baseRotateLevel : function()
1092     {
1093         console.log("BASE ROTATE LEVEL");
1094         this.baseRotate = 1;
1095
1096         if(
1097                 typeof(this.exif) != 'undefined' &&
1098                 typeof(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != 'undefined' &&
1099                 [1, 3, 6, 8].indexOf(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != -1
1100         ){
1101             this.baseRotate = this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']];
1102         }
1103
1104         this.rotate = Roo.dialog.UploadCropbox['Orientation'][this.baseRotate];
1105
1106     },
1107
1108     baseScaleLevel : function()
1109     {
1110         console.log("BASE SCALE LEVEL");
1111         var width, height;
1112
1113         if(this.isDocument){
1114
1115             if(this.baseRotate == 6 || this.baseRotate == 8){
1116
1117                 height = this.thumbEl.getHeight();
1118                 this.baseScale = height / this.imageEl.OriginWidth;
1119
1120                 if(this.imageEl.OriginHeight * this.baseScale > this.thumbEl.getWidth()){
1121                     width = this.thumbEl.getWidth();
1122                     this.baseScale = width / this.imageEl.OriginHeight;
1123                 }
1124
1125                 return;
1126             }
1127
1128             height = this.thumbEl.getHeight();
1129             this.baseScale = height / this.imageEl.OriginHeight;
1130
1131             if(this.imageEl.OriginWidth * this.baseScale > this.thumbEl.getWidth()){
1132                 width = this.thumbEl.getWidth();
1133                 this.baseScale = width / this.imageEl.OriginWidth;
1134             }
1135
1136             return;
1137         }
1138
1139         if(this.baseRotate == 6 || this.baseRotate == 8){
1140
1141             width = this.thumbEl.getHeight();
1142             this.baseScale = width / this.imageEl.OriginHeight;
1143
1144             if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getWidth()){
1145                 height = this.thumbEl.getWidth();
1146                 this.baseScale = height / this.imageEl.OriginHeight;
1147             }
1148
1149             if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1150                 height = this.thumbEl.getWidth();
1151                 this.baseScale = height / this.imageEl.OriginHeight;
1152
1153                 if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getHeight()){
1154                     width = this.thumbEl.getHeight();
1155                     this.baseScale = width / this.imageEl.OriginWidth;
1156                 }
1157             }
1158
1159             return;
1160         }
1161
1162         width = this.thumbEl.getWidth();
1163         this.baseScale = width / this.imageEl.OriginWidth;
1164
1165         if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getHeight()){
1166             height = this.thumbEl.getHeight();
1167             this.baseScale = height / this.imageEl.OriginHeight;
1168         }
1169
1170         if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1171
1172             height = this.thumbEl.getHeight();
1173             this.baseScale = height / this.imageEl.OriginHeight;
1174
1175             if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getWidth()){
1176                 width = this.thumbEl.getWidth();
1177                 this.baseScale = width / this.imageEl.OriginWidth;
1178             }
1179
1180         }
1181
1182         if(this.imageEl.OriginWidth < this.minWidth ) {
1183             this.baseScale = width / this.minWidth;
1184         }
1185
1186         if(this.imageEl.OriginHeight < this.minHeight) {
1187             this.baseScale = height / this.minHeight;
1188         }
1189
1190         return;
1191     },
1192
1193     getScaleLevel : function()
1194     {
1195         return this.baseScale * Math.pow(1.02, this.scale);
1196     },
1197
1198     onTouchStart : function(e)
1199     {
1200         if(!this.canvasLoaded){
1201             this.beforeSelectFile(e);
1202             return;
1203         }
1204
1205         var touches = e.browserEvent.touches;
1206
1207         if(!touches){
1208             return;
1209         }
1210
1211         if(touches.length == 1){
1212             this.onMouseDown(e);
1213             return;
1214         }
1215
1216         if(touches.length != 2){
1217             return;
1218         }
1219
1220         var coords = [];
1221
1222         for(var i = 0, finger; finger = touches[i]; i++){
1223             coords.push(finger.pageX, finger.pageY);
1224         }
1225
1226         var x = Math.pow(coords[0] - coords[2], 2);
1227         var y = Math.pow(coords[1] - coords[3], 2);
1228
1229         this.startDistance = Math.sqrt(x + y);
1230
1231         this.startScale = this.scale;
1232
1233         this.pinching = true;
1234         this.dragable = false;
1235
1236     },
1237
1238     onTouchMove : function(e)
1239     {
1240         if(!this.pinching && !this.dragable){
1241             return;
1242         }
1243
1244         var touches = e.browserEvent.touches;
1245
1246         if(!touches){
1247             return;
1248         }
1249
1250         if(this.dragable){
1251             this.onMouseMove(e);
1252             return;
1253         }
1254
1255         var coords = [];
1256
1257         for(var i = 0, finger; finger = touches[i]; i++){
1258             coords.push(finger.pageX, finger.pageY);
1259         }
1260
1261         var x = Math.pow(coords[0] - coords[2], 2);
1262         var y = Math.pow(coords[1] - coords[3], 2);
1263
1264         this.endDistance = Math.sqrt(x + y);
1265
1266         this.scale = this.startScale + Math.floor(Math.log(this.endDistance / this.startDistance) / Math.log(1.1));
1267
1268         if(!this.zoomable()){
1269             this.scale = this.startScale;
1270             return;
1271         }
1272
1273         this.draw();
1274
1275     },
1276
1277     onTouchEnd : function(e)
1278     {
1279         this.pinching = false;
1280         this.dragable = false;
1281
1282     },
1283
1284     process : function(file, crop)
1285     {
1286         if(this.loadMask){
1287             this.maskEl.mask(this.loadingText);
1288         }
1289
1290         this.xhr = new XMLHttpRequest();
1291
1292         file.xhr = this.xhr;
1293
1294         this.xhr.open(this.method, this.url, true);
1295
1296         var headers = {
1297             "Accept": "application/json",
1298             "Cache-Control": "no-cache",
1299             "X-Requested-With": "XMLHttpRequest"
1300         };
1301
1302         for (var headerName in headers) {
1303             var headerValue = headers[headerName];
1304             if (headerValue) {
1305                 this.xhr.setRequestHeader(headerName, headerValue);
1306             }
1307         }
1308
1309         var _this = this;
1310
1311         this.xhr.onload = function()
1312         {
1313             _this.xhrOnLoad(_this.xhr);
1314         }
1315
1316         this.xhr.onerror = function()
1317         {
1318             _this.xhrOnError(_this.xhr);
1319         }
1320
1321         var formData = new FormData();
1322
1323         formData.append('returnHTML', 'NO');
1324
1325         if(crop){
1326             formData.append('crop', crop);
1327         }
1328
1329         if(typeof(file) != 'undefined' && (typeof(file.id) == 'undefined' || file.id * 1 < 1)){
1330             formData.append(this.paramName, file, file.name);
1331         }
1332
1333         if(typeof(file.filename) != 'undefined'){
1334             formData.append('filename', file.filename);
1335         }
1336
1337         if(typeof(file.mimetype) != 'undefined'){
1338             formData.append('mimetype', file.mimetype);
1339         }
1340
1341         if(this.fireEvent('arrange', this, formData) != false){
1342             this.xhr.send(formData);
1343         };
1344     },
1345
1346     xhrOnLoad : function(xhr)
1347     {
1348         if(this.loadMask){
1349             this.maskEl.unmask();
1350         }
1351
1352         if (xhr.readyState !== 4) {
1353             this.fireEvent('exception', this, xhr);
1354             return;
1355         }
1356
1357         var response = Roo.decode(xhr.responseText);
1358
1359         if(!response.success){
1360             this.fireEvent('exception', this, xhr);
1361             return;
1362         }
1363
1364         var response = Roo.decode(xhr.responseText);
1365
1366         this.fireEvent('upload', this, response);
1367
1368     },
1369
1370     xhrOnError : function()
1371     {
1372         if(this.loadMask){
1373             this.maskEl.unmask();
1374         }
1375
1376         Roo.log('xhr on error');
1377
1378         var response = Roo.decode(xhr.responseText);
1379
1380         Roo.log(response);
1381
1382     },
1383
1384     prepare : function(file)
1385     {
1386         console.log("PREPARE");
1387         console.log(file);
1388         if(this.loadMask){
1389             this.maskEl.mask(this.loadingText);
1390         }
1391
1392         this.file = false;
1393         this.exif = {};
1394
1395         if(typeof(file) === 'string'){
1396             this.loadCanvas(file);
1397             return;
1398         }
1399
1400         if(!file || !this.urlAPI){
1401             return;
1402         }
1403
1404         this.file = file;
1405         this.cropType = file.type;
1406
1407         var _this = this;
1408
1409         if(this.fireEvent('prepare', this, this.file) != false){
1410
1411             var reader = new FileReader();
1412
1413             reader.onload = function (e) {
1414                 if (e.target.error) {
1415                     Roo.log(e.target.error);
1416                     return;
1417                 }
1418
1419                 var buffer = e.target.result,
1420                     dataView = new DataView(buffer),
1421                     offset = 2,
1422                     maxOffset = dataView.byteLength - 4,
1423                     markerBytes,
1424                     markerLength;
1425
1426                 if (dataView.getUint16(0) === 0xffd8) {
1427                     while (offset < maxOffset) {
1428                         markerBytes = dataView.getUint16(offset);
1429
1430                         if ((markerBytes >= 0xffe0 && markerBytes <= 0xffef) || markerBytes === 0xfffe) {
1431                             markerLength = dataView.getUint16(offset + 2) + 2;
1432                             if (offset + markerLength > dataView.byteLength) {
1433                                 Roo.log('Invalid meta data: Invalid segment size.');
1434                                 break;
1435                             }
1436
1437                             if(markerBytes == 0xffe1){
1438                                 _this.parseExifData(
1439                                     dataView,
1440                                     offset,
1441                                     markerLength
1442                                 );
1443                             }
1444
1445                             offset += markerLength;
1446
1447                             continue;
1448                         }
1449
1450                         break;
1451                     }
1452
1453                 }
1454
1455                 var url = _this.urlAPI.createObjectURL(_this.file);
1456
1457                 _this.loadCanvas(url);
1458
1459                 return;
1460             }
1461
1462             reader.readAsArrayBuffer(this.file);
1463
1464         }
1465
1466     },
1467
1468     parseExifData : function(dataView, offset, length)
1469     {
1470         var tiffOffset = offset + 10,
1471             littleEndian,
1472             dirOffset;
1473
1474         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1475             // No Exif data, might be XMP data instead
1476             return;
1477         }
1478
1479         // Check for the ASCII code for "Exif" (0x45786966):
1480         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1481             // No Exif data, might be XMP data instead
1482             return;
1483         }
1484         if (tiffOffset + 8 > dataView.byteLength) {
1485             Roo.log('Invalid Exif data: Invalid segment size.');
1486             return;
1487         }
1488         // Check for the two null bytes:
1489         if (dataView.getUint16(offset + 8) !== 0x0000) {
1490             Roo.log('Invalid Exif data: Missing byte alignment offset.');
1491             return;
1492         }
1493         // Check the byte alignment:
1494         switch (dataView.getUint16(tiffOffset)) {
1495         case 0x4949:
1496             littleEndian = true;
1497             break;
1498         case 0x4D4D:
1499             littleEndian = false;
1500             break;
1501         default:
1502             Roo.log('Invalid Exif data: Invalid byte alignment marker.');
1503             return;
1504         }
1505         // Check for the TIFF tag marker (0x002A):
1506         if (dataView.getUint16(tiffOffset + 2, littleEndian) !== 0x002A) {
1507             Roo.log('Invalid Exif data: Missing TIFF marker.');
1508             return;
1509         }
1510         // Retrieve the directory offset bytes, usually 0x00000008 or 8 decimal:
1511         dirOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
1512
1513         this.parseExifTags(
1514             dataView,
1515             tiffOffset,
1516             tiffOffset + dirOffset,
1517             littleEndian
1518         );
1519     },
1520
1521     parseExifTags : function(dataView, tiffOffset, dirOffset, littleEndian)
1522     {
1523         var tagsNumber,
1524             dirEndOffset,
1525             i;
1526         if (dirOffset + 6 > dataView.byteLength) {
1527             Roo.log('Invalid Exif data: Invalid directory offset.');
1528             return;
1529         }
1530         tagsNumber = dataView.getUint16(dirOffset, littleEndian);
1531         dirEndOffset = dirOffset + 2 + 12 * tagsNumber;
1532         if (dirEndOffset + 4 > dataView.byteLength) {
1533             Roo.log('Invalid Exif data: Invalid directory size.');
1534             return;
1535         }
1536         for (i = 0; i < tagsNumber; i += 1) {
1537             this.parseExifTag(
1538                 dataView,
1539                 tiffOffset,
1540                 dirOffset + 2 + 12 * i, // tag offset
1541                 littleEndian
1542             );
1543         }
1544         // Return the offset to the next directory:
1545         return dataView.getUint32(dirEndOffset, littleEndian);
1546     },
1547
1548     parseExifTag : function (dataView, tiffOffset, offset, littleEndian)
1549     {
1550         var tag = dataView.getUint16(offset, littleEndian);
1551
1552         this.exif[tag] = this.getExifValue(
1553             dataView,
1554             tiffOffset,
1555             offset,
1556             dataView.getUint16(offset + 2, littleEndian), // tag type
1557             dataView.getUint32(offset + 4, littleEndian), // tag length
1558             littleEndian
1559         );
1560     },
1561
1562     getExifValue : function (dataView, tiffOffset, offset, type, length, littleEndian)
1563     {
1564         var tagType = Roo.dialog.UploadCropbox.exifTagTypes[type],
1565             tagSize,
1566             dataOffset,
1567             values,
1568             i,
1569             str,
1570             c;
1571
1572         if (!tagType) {
1573             Roo.log('Invalid Exif data: Invalid tag type.');
1574             return;
1575         }
1576
1577         tagSize = tagType.size * length;
1578         // Determine if the value is contained in the dataOffset bytes,
1579         // or if the value at the dataOffset is a pointer to the actual data:
1580         dataOffset = tagSize > 4 ?
1581                 tiffOffset + dataView.getUint32(offset + 8, littleEndian) : (offset + 8);
1582         if (dataOffset + tagSize > dataView.byteLength) {
1583             Roo.log('Invalid Exif data: Invalid data offset.');
1584             return;
1585         }
1586         if (length === 1) {
1587             return tagType.getValue(dataView, dataOffset, littleEndian);
1588         }
1589         values = [];
1590         for (i = 0; i < length; i += 1) {
1591             values[i] = tagType.getValue(dataView, dataOffset + i * tagType.size, littleEndian);
1592         }
1593
1594         if (tagType.ascii) {
1595             str = '';
1596             // Concatenate the chars:
1597             for (i = 0; i < values.length; i += 1) {
1598                 c = values[i];
1599                 // Ignore the terminating NULL byte(s):
1600                 if (c === '\u0000') {
1601                     break;
1602                 }
1603                 str += c;
1604             }
1605             return str;
1606         }
1607         return values;
1608     }
1609
1610 });
1611
1612 Roo.apply(Roo.dialog.UploadCropbox, {
1613     tags : {
1614         'Orientation': 0x0112
1615     },
1616
1617     Orientation: {
1618             1: 0, //'top-left',
1619 //            2: 'top-right',
1620             3: 180, //'bottom-right',
1621 //            4: 'bottom-left',
1622 //            5: 'left-top',
1623             6: 90, //'right-top',
1624 //            7: 'right-bottom',
1625             8: 270 //'left-bottom'
1626     },
1627
1628     exifTagTypes : {
1629         // byte, 8-bit unsigned int:
1630         1: {
1631             getValue: function (dataView, dataOffset) {
1632                 return dataView.getUint8(dataOffset);
1633             },
1634             size: 1
1635         },
1636         // ascii, 8-bit byte:
1637         2: {
1638             getValue: function (dataView, dataOffset) {
1639                 return String.fromCharCode(dataView.getUint8(dataOffset));
1640             },
1641             size: 1,
1642             ascii: true
1643         },
1644         // short, 16 bit int:
1645         3: {
1646             getValue: function (dataView, dataOffset, littleEndian) {
1647                 return dataView.getUint16(dataOffset, littleEndian);
1648             },
1649             size: 2
1650         },
1651         // long, 32 bit int:
1652         4: {
1653             getValue: function (dataView, dataOffset, littleEndian) {
1654                 return dataView.getUint32(dataOffset, littleEndian);
1655             },
1656             size: 4
1657         },
1658         // rational = two long values, first is numerator, second is denominator:
1659         5: {
1660             getValue: function (dataView, dataOffset, littleEndian) {
1661                 return dataView.getUint32(dataOffset, littleEndian) /
1662                     dataView.getUint32(dataOffset + 4, littleEndian);
1663             },
1664             size: 8
1665         },
1666         // slong, 32 bit signed int:
1667         9: {
1668             getValue: function (dataView, dataOffset, littleEndian) {
1669                 return dataView.getInt32(dataOffset, littleEndian);
1670             },
1671             size: 4
1672         },
1673         // srational, two slongs, first is numerator, second is denominator:
1674         10: {
1675             getValue: function (dataView, dataOffset, littleEndian) {
1676                 return dataView.getInt32(dataOffset, littleEndian) /
1677                     dataView.getInt32(dataOffset + 4, littleEndian);
1678             },
1679             size: 8
1680         }
1681     },
1682
1683     footer : {
1684         STANDARD : [
1685             {
1686                 tag : 'div',
1687                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1688                 action : 'rotate-left',
1689                 cn : [
1690                     {
1691                         tag : 'button',
1692                         cls : 'btn btn-default',
1693                         html : '<i class="fa fa-undo"></i>'
1694                     }
1695                 ]
1696             },
1697             {
1698                 tag : 'div',
1699                 cls : 'btn-group roo-upload-cropbox-picture',
1700                 action : 'picture',
1701                 cn : [
1702                     {
1703                         tag : 'button',
1704                         cls : 'btn btn-default',
1705                         html : '<i class="fa fa-picture-o"></i>'
1706                     }
1707                 ]
1708             },
1709             {
1710                 tag : 'div',
1711                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1712                 action : 'rotate-right',
1713                 cn : [
1714                     {
1715                         tag : 'button',
1716                         cls : 'btn btn-default',
1717                         html : '<i class="fa fa-repeat"></i>'
1718                     }
1719                 ]
1720             }
1721         ],
1722         DOCUMENT : [
1723             {
1724                 tag : 'div',
1725                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1726                 action : 'rotate-left',
1727                 cn : [
1728                     {
1729                         tag : 'button',
1730                         cls : 'btn btn-default',
1731                         html : '<i class="fa fa-undo"></i>'
1732                     }
1733                 ]
1734             },
1735             {
1736                 tag : 'div',
1737                 cls : 'btn-group roo-upload-cropbox-download',
1738                 action : 'download',
1739                 cn : [
1740                     {
1741                         tag : 'button',
1742                         cls : 'btn btn-default',
1743                         html : '<i class="fa fa-download"></i>'
1744                     }
1745                 ]
1746             },
1747             {
1748                 tag : 'div',
1749                 cls : 'btn-group roo-upload-cropbox-crop',
1750                 action : 'crop',
1751                 cn : [
1752                     {
1753                         tag : 'button',
1754                         cls : 'btn btn-default',
1755                         html : '<i class="fa fa-crop"></i>'
1756                     }
1757                 ]
1758             },
1759             {
1760                 tag : 'div',
1761                 cls : 'btn-group roo-upload-cropbox-trash',
1762                 action : 'trash',
1763                 cn : [
1764                     {
1765                         tag : 'button',
1766                         cls : 'btn btn-default',
1767                         html : '<i class="fa fa-trash"></i>'
1768                     }
1769                 ]
1770             },
1771             {
1772                 tag : 'div',
1773                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1774                 action : 'rotate-right',
1775                 cn : [
1776                     {
1777                         tag : 'button',
1778                         cls : 'btn btn-default',
1779                         html : '<i class="fa fa-repeat"></i>'
1780                     }
1781                 ]
1782             }
1783         ],
1784         ROTATOR : [
1785             {
1786                 tag : 'div',
1787                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1788                 action : 'rotate-left',
1789                 cn : [
1790                     {
1791                         tag : 'button',
1792                         cls : 'btn btn-default',
1793                         html : '<i class="fa fa-undo"></i>'
1794                     }
1795                 ]
1796             },
1797             {
1798                 tag : 'div',
1799                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1800                 action : 'rotate-right',
1801                 cn : [
1802                     {
1803                         tag : 'button',
1804                         cls : 'btn btn-default',
1805                         html : '<i class="fa fa-repeat"></i>'
1806                     }
1807                 ]
1808             }
1809         ]
1810     }
1811 });