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         console.log("On Render");
 219         console.log(this);
 220         Roo.dialog.UploadCropbox.superclass.onRender.call(this, ct, position);
 221
 222         if(this.el){
 223             if (this.el.attr('xtype')) {
 224                 this.el.attr('xtypex', this.el.attr('xtype'));
 225                 this.el.dom.removeAttribute('xtype');
 226
 227                 this.initEvents();
 228             }
 229         }
 230         else {
 231             var cfg = Roo.apply({},  this.getAutoCreate());
 232
 233             cfg.id = this.id || Roo.id();
 234
 235             if (this.cls) {
 236                 cfg.cls = (typeof(cfg.cls) == 'undefined' ? this.cls : cfg.cls) + ' ' + this.cls;
 237             }
 238
 239             if (this.style) { // fixme needs to support more complex style data.
 240                 cfg.style = (typeof(cfg.style) == 'undefined' ? this.style : cfg.style) + '; ' + this.style;
 241             }
 242
 243             this.el = ct.createChild(cfg, position);
 244
 245             this.initEvents();
 246         }
 247
 248         if (this.buttons.length) {
 249
 250             Roo.each(this.buttons, function(bb) {
 251
 252                 var btn = this.el.select('.roo-upload-cropbox-footer div.roo-upload-cropbox-btn-group').first().createChild(bb);
 253
 254                 btn.on('click', this.onFooterButtonClick.createDelegate(this, [bb.action], true));
 255
 256             }, this);
 257         }
 258
 259         if(this.loadMask){
 260             this.maskEl = this.el;
 261         }
 262     },
 263
 264     initEvents : function()
 265     {
 266         this.urlAPI = (window.createObjectURL && window) ||
 267                                 (window.URL && URL.revokeObjectURL && URL) ||
 268                                 (window.webkitURL && webkitURL);
 269
 270         this.bodyEl = this.el.select('.roo-upload-cropbox-body', true).first();
 271         this.bodyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 272
 273         this.selectorEl = this.el.select('.roo-upload-cropbox-selector', true).first();
 274         this.selectorEl.hide();
 275
 276         this.previewEl = this.el.select('.roo-upload-cropbox-preview', true).first();
 277         this.previewEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 278
 279         this.thumbEl = this.el.select('.roo-upload-cropbox-thumb', true).first();
 280         this.thumbEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 281         this.thumbEl.hide();
 282
 283         this.notifyEl = this.el.select('.roo-upload-cropbox-empty-notify', true).first();
 284         this.notifyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 285
 286         this.errorEl = this.el.select('.roo-upload-cropbox-error-notify', true).first();
 287         this.errorEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 288         this.errorEl.hide();
 289
 290         this.footerEl = this.el.select('.roo-upload-cropbox-footer', true).first();
 291         this.footerEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 292         this.footerEl.hide();
 293
 294         this.setThumbBoxSize();
 295
 296         this.bind();
 297
 298         this.resize();
 299
 300         this.fireEvent('initial', this);
 301     },
 302
 303     bind : function()
 304     {
 305         var _this = this;
 306
 307         window.addEventListener("resize", function() { _this.resize(); } );
 308
 309         this.bodyEl.on('click', this.beforeSelectFile, this);
 310
 311         if(Roo.isTouch){
 312             this.bodyEl.on('touchstart', this.onTouchStart, this);
 313             this.bodyEl.on('touchmove', this.onTouchMove, this);
 314             this.bodyEl.on('touchend', this.onTouchEnd, this);
 315         }
 316
 317         if(!Roo.isTouch){
 318             this.bodyEl.on('mousedown', this.onMouseDown, this);
 319             this.bodyEl.on('mousemove', this.onMouseMove, this);
 320             var mousewheel = (/Firefox/i.test(navigator.userAgent))? 'DOMMouseScroll' : 'mousewheel';
 321             this.bodyEl.on(mousewheel, this.onMouseWheel, this);
 322             Roo.get(document).on('mouseup', this.onMouseUp, this);
 323         }
 324
 325         this.selectorEl.on('change', this.onFileSelected, this);
 326     },
 327
 328     reset : function()
 329     {
 330         this.scale = 0;
 331         this.baseScale = 1;
 332         this.rotate = 0;
 333         this.baseRotate = 1;
 334         this.dragable = false;
 335         this.pinching = false;
 336         this.mouseX = 0;
 337         this.mouseY = 0;
 338         this.cropData = false;
 339         this.notifyEl.dom.innerHTML = this.emptyText;
 340
 341         // this.selectorEl.dom.value = '';
 342
 343     },
 344
 345     resize : function()
 346     {
 347         if(this.fireEvent('resize', this) != false){
 348             this.setThumbBoxPosition();
 349             this.setCanvasPosition();
 350         }
 351     },
 352
 353     onFooterButtonClick : function(e, el, o, type)
 354     {
 355         switch (type) {
 356             case 'rotate-left' :
 357                 this.onRotateLeft(e);
 358                 break;
 359             case 'rotate-right' :
 360                 this.onRotateRight(e);
 361                 break;
 362             case 'picture' :
 363                 this.beforeSelectFile(e);
 364                 break;
 365             case 'trash' :
 366                 this.trash(e);
 367                 break;
 368             case 'crop' :
 369                 this.crop(e);
 370                 break;
 371             case 'download' :
 372                 this.download(e);
 373                 break;
 374             default :
 375                 break;
 376         }
 377
 378         this.fireEvent('footerbuttonclick', this, type);
 379     },
 380
 381     beforeSelectFile : function(e)
 382     {
 383         e.preventDefault();
 384
 385         if(this.fireEvent('beforeselectfile', this) != false){
 386             this.selectorEl.dom.click();
 387         }
 388     },
 389
 390     onFileSelected : function(e)
 391     {
 392         e.preventDefault();
 393
 394         if(typeof(this.selectorEl.dom.files) == 'undefined' || !this.selectorEl.dom.files.length){
 395             return;
 396         }
 397
 398         var file = this.selectorEl.dom.files[0];
 399
 400         if(this.fireEvent('inspect', this, file) != false){
 401             this.prepare(file);
 402         }
 403
 404     },
 405
 406     trash : function(e)
 407     {
 408         this.fireEvent('trash', this);
 409     },
 410
 411     download : function(e)
 412     {
 413         this.fireEvent('download', this);
 414     },
 415
 416     loadCanvas : function(src)
 417     {
 418         if(this.fireEvent('beforeloadcanvas', this, src) != false){
 419
 420             this.reset();
 421
 422             this.imageEl = document.createElement('img');
 423
 424             var _this = this;
 425
 426             this.imageEl.addEventListener("load", function(){ _this.onLoadCanvas(); });
 427
 428             this.imageEl.src = src;
 429         }
 430     },
 431
 432     onLoadCanvas : function()
 433     {
 434         this.imageEl.OriginWidth = this.imageEl.naturalWidth || this.imageEl.width;
 435         this.imageEl.OriginHeight = this.imageEl.naturalHeight || this.imageEl.height;
 436
 437         if(this.fireEvent('loadcanvas', this, this.imageEl) != false){
 438
 439             this.bodyEl.un('click', this.beforeSelectFile, this);
 440
 441             this.notifyEl.hide();
 442             this.thumbEl.show();
 443             this.footerEl.show();
 444
 445             this.baseRotateLevel();
 446
 447             if(this.isDocument){
 448                 this.setThumbBoxSize();
 449             }
 450
 451             this.setThumbBoxPosition();
 452
 453             this.baseScaleLevel();
 454
 455             this.draw();
 456
 457             this.resize();
 458
 459             this.canvasLoaded = true;
 460
 461         }
 462
 463         if(this.loadMask){
 464             this.maskEl.unmask();
 465         }
 466
 467     },
 468
 469     setCanvasPosition : function()
 470     {
 471         if(!this.canvasEl){
 472             return;
 473         }
 474
 475         var pw = Math.ceil((this.bodyEl.getWidth() - this.canvasEl.width) / 2);
 476         var ph = Math.ceil((this.bodyEl.getHeight() - this.canvasEl.height) / 2);
 477
 478         this.previewEl.setLeft(pw);
 479         this.previewEl.setTop(ph);
 480
 481     },
 482
 483     onMouseDown : function(e)
 484     {
 485         e.stopEvent();
 486
 487         this.dragable = true;
 488         this.pinching = false;
 489
 490         if(this.isDocument && (this.canvasEl.width < this.thumbEl.getWidth() || this.canvasEl.height < this.thumbEl.getHeight())){
 491             this.dragable = false;
 492             return;
 493         }
 494
 495         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 496         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 497
 498     },
 499
 500     onMouseMove : function(e)
 501     {
 502         e.stopEvent();
 503
 504         if(!this.canvasLoaded){
 505             return;
 506         }
 507
 508         if (!this.dragable){
 509             return;
 510         }
 511
 512         var minX = Math.ceil(this.thumbEl.getLeft(true));
 513         var minY = Math.ceil(this.thumbEl.getTop(true));
 514
 515         var maxX = Math.ceil(minX + this.thumbEl.getWidth() - this.canvasEl.width);
 516         var maxY = Math.ceil(minY + this.thumbEl.getHeight() - this.canvasEl.height);
 517
 518         var x = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 519         var y = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 520
 521         x = x - this.mouseX;
 522         y = y - this.mouseY;
 523
 524         var bgX = Math.ceil(x + this.previewEl.getLeft(true));
 525         var bgY = Math.ceil(y + this.previewEl.getTop(true));
 526
 527         bgX = (minX < bgX) ? minX : ((maxX > bgX) ? maxX : bgX);
 528         bgY = (minY < bgY) ? minY : ((maxY > bgY) ? maxY : bgY);
 529
 530         this.previewEl.setLeft(bgX);
 531         this.previewEl.setTop(bgY);
 532
 533         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 534         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 535     },
 536
 537     onMouseUp : function(e)
 538     {
 539         e.stopEvent();
 540
 541         this.dragable = false;
 542     },
 543
 544     onMouseWheel : function(e)
 545     {
 546         e.stopEvent();
 547
 548         this.startScale = this.scale;
 549         console.log("START SCALE: " + this.scale);
 550         this.scale = (e.getWheelDelta() == 1) ? (this.scale + 1) : (this.scale - 1);
 551         console.log("END SCALE: " + this.scale);
 552         if(!this.zoomable()){
 553             this.scale = this.startScale;
 554             return;
 555         }
 556
 557         this.draw();
 558
 559         return;
 560     },
 561
 562     zoomable : function()
 563     {
 564         console.log("THUMBEL");
 565         console.log(this.thumbEl);
 566         var minScale = this.thumbEl.getWidth() / this.minWidth;
 567
 568         if(this.minWidth < this.minHeight){
 569             minScale = this.thumbEl.getHeight() / this.minHeight;
 570         }
 571
 572         console.log("MINSCALE: " + minScale);
 573
 574         var width = Math.ceil(this.imageEl.OriginWidth * this.getScaleLevel() / minScale);
 575         var height = Math.ceil(this.imageEl.OriginHeight * this.getScaleLevel() / minScale);
 576
 577         var maxWidth = this.imageEl.OriginWidth;
 578         var maxHeight = this.imageEl.OriginHeight;
 579
 580         if(this.imageEl.OriginWidth / this.imageEl.OriginHeight  > this.minWidth / this.minHeight && this.imageEl.OriginHeight < this.minHeight) {
 581             maxHeight = this.minHeight;
 582             maxWidth = this.imageEl.OriginWidth / this.imageEl.OriginHeight * this.minHeight;
 583         }
 584         if(this.imageEl.OriginWidth / this.imageEl.OriginHeight  < this.minWidth / this.minHeight && this.imageEl.OriginWidth < this.minWidth) {
 585             maxWidth = this.minWidth;
 586             maxHeight = this.imageEl.OriginHeight /this.imageEl.OriginWidth * this.minWidth;
 587         }
 588
 589         console.log("GETSCALELEVEL: " + this.getScaleLevel());
 590         console.log("width: " + width);
 591         console.log("height: " + height);
 592         console.log("maxWidth: " + maxWidth);
 593         console.log("maxHeight: " + maxHeight);
 594
 595         if(
 596                 this.isDocument &&
 597                 (this.rotate == 0 || this.rotate == 180) &&
 598                 (
 599                     width > this.imageEl.OriginWidth ||
 600                     height > this.imageEl.OriginHeight ||
 601                     (width < this.minWidth && height < this.minHeight)
 602                 )
 603         ){
 604             return false;
 605         }
 606
 607         if(
 608                 this.isDocument &&
 609                 (this.rotate == 90 || this.rotate == 270) &&
 610                 (
 611                     width > this.imageEl.OriginWidth ||
 612                     height > this.imageEl.OriginHeight ||
 613                     (width < this.minHeight && height < this.minWidth)
 614                 )
 615         ){
 616             return false;
 617         }
 618
 619         if(
 620                 !this.isDocument &&
 621                 (this.rotate == 0 || this.rotate == 180) &&
 622                 (
 623                     width < this.minWidth || // zoom out
 624                     height < this.minHeight ||
 625                     width > maxWidth ||
 626                     height > maxHeight
 627                 )
 628         ){
 629             return false;
 630         }
 631
 632         if(
 633                 !this.isDocument &&
 634                 (this.rotate == 90 || this.rotate == 270) &&
 635                 (
 636                     width < this.minHeight ||
 637                     width > this.imageEl.OriginWidth ||
 638                     height < this.minWidth ||
 639                     height > this.imageEl.OriginHeight
 640                 )
 641         ){
 642             return false;
 643         }
 644
 645         return true;
 646
 647     },
 648
 649     onRotateLeft : function(e)
 650     {
 651         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 652
 653             var minScale = this.thumbEl.getWidth() / this.minWidth;
 654
 655             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 656             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 657
 658             this.startScale = this.scale;
 659
 660             while (this.getScaleLevel() < minScale){
 661
 662                 this.scale = this.scale + 1;
 663
 664                 if(!this.zoomable()){
 665                     break;
 666                 }
 667
 668                 if(
 669                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 670                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 671                 ){
 672                     continue;
 673                 }
 674
 675                 this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 676
 677                 this.draw();
 678
 679                 return;
 680             }
 681
 682             this.scale = this.startScale;
 683
 684             this.onRotateFail();
 685
 686             return false;
 687         }
 688
 689         this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 690
 691         if(this.isDocument){
 692             this.setThumbBoxSize();
 693             this.setThumbBoxPosition();
 694             this.setCanvasPosition();
 695         }
 696
 697         this.draw();
 698
 699         this.fireEvent('rotate', this, 'left');
 700
 701     },
 702
 703     onRotateRight : function(e)
 704     {
 705         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 706
 707             var minScale = this.thumbEl.getWidth() / this.minWidth;
 708
 709             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 710             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 711
 712             this.startScale = this.scale;
 713
 714             while (this.getScaleLevel() < minScale){
 715
 716                 this.scale = this.scale + 1;
 717
 718                 if(!this.zoomable()){
 719                     break;
 720                 }
 721
 722                 if(
 723                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 724                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 725                 ){
 726                     continue;
 727                 }
 728
 729                 this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 730
 731                 this.draw();
 732
 733                 return;
 734             }
 735
 736             this.scale = this.startScale;
 737
 738             this.onRotateFail();
 739
 740             return false;
 741         }
 742
 743         this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 744
 745         if(this.isDocument){
 746             this.setThumbBoxSize();
 747             this.setThumbBoxPosition();
 748             this.setCanvasPosition();
 749         }
 750
 751         this.draw();
 752
 753         this.fireEvent('rotate', this, 'right');
 754     },
 755
 756     onRotateFail : function()
 757     {
 758         this.errorEl.show(true);
 759
 760         var _this = this;
 761
 762         (function() { _this.errorEl.hide(true); }).defer(this.errorTimeout);
 763     },
 764
 765     draw : function()
 766     {
 767         this.previewEl.dom.innerHTML = '';
 768
 769         var canvasEl = document.createElement("canvas");
 770
 771         var contextEl = canvasEl.getContext("2d");
 772
 773         canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 774         canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 775         var center = this.imageEl.OriginWidth / 2;
 776
 777         if(this.imageEl.OriginWidth < this.imageEl.OriginHeight){
 778             canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 779             canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 780             center = this.imageEl.OriginHeight / 2;
 781         }
 782
 783         contextEl.scale(this.getScaleLevel(), this.getScaleLevel());
 784
 785         contextEl.translate(center, center);
 786         contextEl.rotate(this.rotate * Math.PI / 180);
 787
 788         contextEl.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 789
 790         this.canvasEl = document.createElement("canvas");
 791
 792         this.contextEl = this.canvasEl.getContext("2d");
 793
 794         switch (this.rotate) {
 795             case 0 :
 796
 797                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 798                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 799
 800                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 801
 802                 break;
 803             case 90 :
 804
 805                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 806                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 807
 808                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 809                     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);
 810                     break;
 811                 }
 812
 813                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 814
 815                 break;
 816             case 180 :
 817
 818                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 819                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 820
 821                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 822                     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);
 823                     break;
 824                 }
 825
 826                 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);
 827
 828                 break;
 829             case 270 :
 830
 831                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 832                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 833
 834                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 835                     this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 836                     break;
 837                 }
 838
 839                 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);
 840
 841                 break;
 842             default :
 843                 break;
 844         }
 845
 846         this.previewEl.appendChild(this.canvasEl);
 847
 848         this.setCanvasPosition();
 849     },
 850
 851     crop : function()
 852     {
 853         if(!this.canvasLoaded){
 854             return;
 855         }
 856
 857         var imageCanvas = document.createElement("canvas");
 858
 859         var imageContext = imageCanvas.getContext("2d");
 860
 861         imageCanvas.width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 862         imageCanvas.height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 863
 864         var center = imageCanvas.width / 2;
 865
 866         imageContext.translate(center, center);
 867
 868         imageContext.rotate(this.rotate * Math.PI / 180);
 869
 870         imageContext.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 871
 872         var canvas = document.createElement("canvas");
 873
 874         var context = canvas.getContext("2d");
 875
 876         canvas.width = this.minWidth;
 877         canvas.height = this.minHeight;
 878
 879         switch (this.rotate) {
 880             case 0 :
 881
 882                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 883                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 884
 885                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 886                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 887
 888                 var targetWidth = this.minWidth - 2 * x;
 889                 var targetHeight = this.minHeight - 2 * y;
 890
 891                 var scale = 1;
 892
 893                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 894                     scale = targetWidth / width;
 895                 }
 896
 897                 if(x > 0 && y == 0){
 898                     scale = targetHeight / height;
 899                 }
 900
 901                 if(x > 0 && y > 0){
 902                     scale = targetWidth / width;
 903
 904                     if(width < height){
 905                         scale = targetHeight / height;
 906                     }
 907                 }
 908
 909                 context.scale(scale, scale);
 910
 911                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 912                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 913
 914                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 915                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 916
 917                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 918
 919                 break;
 920             case 90 :
 921
 922                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 923                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 924
 925                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 926                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 927
 928                 var targetWidth = this.minWidth - 2 * x;
 929                 var targetHeight = this.minHeight - 2 * y;
 930
 931                 var scale = 1;
 932
 933                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 934                     scale = targetWidth / width;
 935                 }
 936
 937                 if(x > 0 && y == 0){
 938                     scale = targetHeight / height;
 939                 }
 940
 941                 if(x > 0 && y > 0){
 942                     scale = targetWidth / width;
 943
 944                     if(width < height){
 945                         scale = targetHeight / height;
 946                     }
 947                 }
 948
 949                 context.scale(scale, scale);
 950
 951                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 952                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 953
 954                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 955                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 956
 957                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 958
 959                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 960
 961                 break;
 962             case 180 :
 963
 964                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 965                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 966
 967                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 968                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 969
 970                 var targetWidth = this.minWidth - 2 * x;
 971                 var targetHeight = this.minHeight - 2 * y;
 972
 973                 var scale = 1;
 974
 975                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 976                     scale = targetWidth / width;
 977                 }
 978
 979                 if(x > 0 && y == 0){
 980                     scale = targetHeight / height;
 981                 }
 982
 983                 if(x > 0 && y > 0){
 984                     scale = targetWidth / width;
 985
 986                     if(width < height){
 987                         scale = targetHeight / height;
 988                     }
 989                 }
 990
 991                 context.scale(scale, scale);
 992
 993                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 994                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 995
 996                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 997                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 998
 999                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1000                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
1001
1002                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1003
1004                 break;
1005             case 270 :
1006
1007                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
1008                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
1009
1010                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1011                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1012
1013                 var targetWidth = this.minWidth - 2 * x;
1014                 var targetHeight = this.minHeight - 2 * y;
1015
1016                 var scale = 1;
1017
1018                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1019                     scale = targetWidth / width;
1020                 }
1021
1022                 if(x > 0 && y == 0){
1023                     scale = targetHeight / height;
1024                 }
1025
1026                 if(x > 0 && y > 0){
1027                     scale = targetWidth / width;
1028
1029                     if(width < height){
1030                         scale = targetHeight / height;
1031                     }
1032                 }
1033
1034                 context.scale(scale, scale);
1035
1036                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1037                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1038
1039                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1040                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1041
1042                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1043
1044                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1045
1046                 break;
1047             default :
1048                 break;
1049         }
1050
1051         this.cropData = canvas.toDataURL(this.cropType);
1052
1053         if(this.fireEvent('crop', this, this.cropData) !== false){
1054             this.process(this.file, this.cropData);
1055         }
1056
1057         return;
1058
1059     },
1060
1061     setThumbBoxSize : function()
1062     {
1063         var width, height;
1064
1065         if(this.isDocument && typeof(this.imageEl) != 'undefined'){
1066             width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.max(this.minWidth, this.minHeight) : Math.min(this.minWidth, this.minHeight);
1067             height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.min(this.minWidth, this.minHeight) : Math.max(this.minWidth, this.minHeight);
1068
1069             this.minWidth = width;
1070             this.minHeight = height;
1071
1072             if(this.rotate == 90 || this.rotate == 270){
1073                 this.minWidth = height;
1074                 this.minHeight = width;
1075             }
1076         }
1077
1078         height = 300;
1079         width = Math.ceil(this.minWidth * height / this.minHeight);
1080
1081         if(this.minWidth > this.minHeight){
1082             width = 300;
1083             height = Math.ceil(this.minHeight * width / this.minWidth);
1084         }
1085
1086         this.thumbEl.setStyle({
1087             width : width + 'px',
1088             height : height + 'px'
1089         });
1090
1091         return;
1092
1093     },
1094
1095     setThumbBoxPosition : function()
1096     {
1097         var x = Math.ceil((this.bodyEl.getWidth() - this.thumbEl.getWidth()) / 2 );
1098         var y = Math.ceil((this.bodyEl.getHeight() - this.thumbEl.getHeight()) / 2);
1099
1100         this.thumbEl.setLeft(x);
1101         this.thumbEl.setTop(y);
1102
1103     },
1104
1105     baseRotateLevel : function()
1106     {
1107         this.baseRotate = 1;
1108
1109         if(
1110                 typeof(this.exif) != 'undefined' &&
1111                 typeof(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != 'undefined' &&
1112                 [1, 3, 6, 8].indexOf(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != -1
1113         ){
1114             this.baseRotate = this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']];
1115         }
1116
1117         this.rotate = Roo.dialog.UploadCropbox['Orientation'][this.baseRotate];
1118
1119     },
1120
1121     baseScaleLevel : function()
1122     {
1123         var width, height;
1124
1125         if(this.isDocument){
1126
1127             if(this.baseRotate == 6 || this.baseRotate == 8){
1128
1129                 height = this.thumbEl.getHeight();
1130                 this.baseScale = height / this.imageEl.OriginWidth;
1131
1132                 if(this.imageEl.OriginHeight * this.baseScale > this.thumbEl.getWidth()){
1133                     width = this.thumbEl.getWidth();
1134                     this.baseScale = width / this.imageEl.OriginHeight;
1135                 }
1136
1137                 return;
1138             }
1139
1140             height = this.thumbEl.getHeight();
1141             this.baseScale = height / this.imageEl.OriginHeight;
1142
1143             if(this.imageEl.OriginWidth * this.baseScale > this.thumbEl.getWidth()){
1144                 width = this.thumbEl.getWidth();
1145                 this.baseScale = width / this.imageEl.OriginWidth;
1146             }
1147
1148             return;
1149         }
1150
1151         if(this.baseRotate == 6 || this.baseRotate == 8){
1152
1153             width = this.thumbEl.getHeight();
1154             this.baseScale = width / this.imageEl.OriginHeight;
1155
1156             if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getWidth()){
1157                 height = this.thumbEl.getWidth();
1158                 this.baseScale = height / this.imageEl.OriginHeight;
1159             }
1160
1161             if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1162                 height = this.thumbEl.getWidth();
1163                 this.baseScale = height / this.imageEl.OriginHeight;
1164
1165                 if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getHeight()){
1166                     width = this.thumbEl.getHeight();
1167                     this.baseScale = width / this.imageEl.OriginWidth;
1168                 }
1169             }
1170
1171             return;
1172         }
1173
1174         width = this.thumbEl.getWidth();
1175         this.baseScale = width / this.imageEl.OriginWidth;
1176
1177         if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getHeight()){
1178             height = this.thumbEl.getHeight();
1179             this.baseScale = height / this.imageEl.OriginHeight;
1180         }
1181
1182         if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1183
1184             height = this.thumbEl.getHeight();
1185             this.baseScale = height / this.imageEl.OriginHeight;
1186
1187             if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getWidth()){
1188                 width = this.thumbEl.getWidth();
1189                 this.baseScale = width / this.imageEl.OriginWidth;
1190             }
1191
1192         }
1193
1194         return;
1195     },
1196
1197     getScaleLevel : function()
1198     {
1199         console.log("BASESCALE: " + this.baseScale);
1200         return this.baseScale * Math.pow(1.02, this.scale);
1201     },
1202
1203     onTouchStart : function(e)
1204     {
1205         if(!this.canvasLoaded){
1206             this.beforeSelectFile(e);
1207             return;
1208         }
1209
1210         var touches = e.browserEvent.touches;
1211
1212         if(!touches){
1213             return;
1214         }
1215
1216         if(touches.length == 1){
1217             this.onMouseDown(e);
1218             return;
1219         }
1220
1221         if(touches.length != 2){
1222             return;
1223         }
1224
1225         var coords = [];
1226
1227         for(var i = 0, finger; finger = touches[i]; i++){
1228             coords.push(finger.pageX, finger.pageY);
1229         }
1230
1231         var x = Math.pow(coords[0] - coords[2], 2);
1232         var y = Math.pow(coords[1] - coords[3], 2);
1233
1234         this.startDistance = Math.sqrt(x + y);
1235
1236         this.startScale = this.scale;
1237
1238         this.pinching = true;
1239         this.dragable = false;
1240
1241     },
1242
1243     onTouchMove : function(e)
1244     {
1245         if(!this.pinching && !this.dragable){
1246             return;
1247         }
1248
1249         var touches = e.browserEvent.touches;
1250
1251         if(!touches){
1252             return;
1253         }
1254
1255         if(this.dragable){
1256             this.onMouseMove(e);
1257             return;
1258         }
1259
1260         var coords = [];
1261
1262         for(var i = 0, finger; finger = touches[i]; i++){
1263             coords.push(finger.pageX, finger.pageY);
1264         }
1265
1266         var x = Math.pow(coords[0] - coords[2], 2);
1267         var y = Math.pow(coords[1] - coords[3], 2);
1268
1269         this.endDistance = Math.sqrt(x + y);
1270
1271         this.scale = this.startScale + Math.floor(Math.log(this.endDistance / this.startDistance) / Math.log(1.1));
1272
1273         if(!this.zoomable()){
1274             this.scale = this.startScale;
1275             return;
1276         }
1277
1278         this.draw();
1279
1280     },
1281
1282     onTouchEnd : function(e)
1283     {
1284         this.pinching = false;
1285         this.dragable = false;
1286
1287     },
1288
1289     process : function(file, crop)
1290     {
1291         if(this.loadMask){
1292             this.maskEl.mask(this.loadingText);
1293         }
1294
1295         this.xhr = new XMLHttpRequest();
1296
1297         file.xhr = this.xhr;
1298
1299         this.xhr.open(this.method, this.url, true);
1300
1301         var headers = {
1302             "Accept": "application/json",
1303             "Cache-Control": "no-cache",
1304             "X-Requested-With": "XMLHttpRequest"
1305         };
1306
1307         for (var headerName in headers) {
1308             var headerValue = headers[headerName];
1309             if (headerValue) {
1310                 this.xhr.setRequestHeader(headerName, headerValue);
1311             }
1312         }
1313
1314         var _this = this;
1315
1316         this.xhr.onload = function()
1317         {
1318             _this.xhrOnLoad(_this.xhr);
1319         }
1320
1321         this.xhr.onerror = function()
1322         {
1323             _this.xhrOnError(_this.xhr);
1324         }
1325
1326         var formData = new FormData();
1327
1328         formData.append('returnHTML', 'NO');
1329
1330         if(crop){
1331             formData.append('crop', crop);
1332         }
1333
1334         if(typeof(file) != 'undefined' && (typeof(file.id) == 'undefined' || file.id * 1 < 1)){
1335             formData.append(this.paramName, file, file.name);
1336         }
1337
1338         if(typeof(file.filename) != 'undefined'){
1339             formData.append('filename', file.filename);
1340         }
1341
1342         if(typeof(file.mimetype) != 'undefined'){
1343             formData.append('mimetype', file.mimetype);
1344         }
1345
1346         if(this.fireEvent('arrange', this, formData) != false){
1347             this.xhr.send(formData);
1348         };
1349     },
1350
1351     xhrOnLoad : function(xhr)
1352     {
1353         if(this.loadMask){
1354             this.maskEl.unmask();
1355         }
1356
1357         if (xhr.readyState !== 4) {
1358             this.fireEvent('exception', this, xhr);
1359             return;
1360         }
1361
1362         var response = Roo.decode(xhr.responseText);
1363
1364         if(!response.success){
1365             this.fireEvent('exception', this, xhr);
1366             return;
1367         }
1368
1369         var response = Roo.decode(xhr.responseText);
1370
1371         this.fireEvent('upload', this, response);
1372
1373     },
1374
1375     xhrOnError : function()
1376     {
1377         if(this.loadMask){
1378             this.maskEl.unmask();
1379         }
1380
1381         Roo.log('xhr on error');
1382
1383         var response = Roo.decode(xhr.responseText);
1384
1385         Roo.log(response);
1386
1387     },
1388
1389     prepare : function(file)
1390     {
1391         if(this.loadMask){
1392             this.maskEl.mask(this.loadingText);
1393         }
1394
1395         this.file = false;
1396         this.exif = {};
1397
1398         if(typeof(file) === 'string'){
1399             this.loadCanvas(file);
1400             return;
1401         }
1402
1403         if(!file || !this.urlAPI){
1404             return;
1405         }
1406
1407         this.file = file;
1408         this.cropType = file.type;
1409
1410         var _this = this;
1411
1412         if(this.fireEvent('prepare', this, this.file) != false){
1413
1414             var reader = new FileReader();
1415
1416             reader.onload = function (e) {
1417                 if (e.target.error) {
1418                     Roo.log(e.target.error);
1419                     return;
1420                 }
1421
1422                 var buffer = e.target.result,
1423                     dataView = new DataView(buffer),
1424                     offset = 2,
1425                     maxOffset = dataView.byteLength - 4,
1426                     markerBytes,
1427                     markerLength;
1428
1429                 if (dataView.getUint16(0) === 0xffd8) {
1430                     while (offset < maxOffset) {
1431                         markerBytes = dataView.getUint16(offset);
1432
1433                         if ((markerBytes >= 0xffe0 && markerBytes <= 0xffef) || markerBytes === 0xfffe) {
1434                             markerLength = dataView.getUint16(offset + 2) + 2;
1435                             if (offset + markerLength > dataView.byteLength) {
1436                                 Roo.log('Invalid meta data: Invalid segment size.');
1437                                 break;
1438                             }
1439
1440                             if(markerBytes == 0xffe1){
1441                                 _this.parseExifData(
1442                                     dataView,
1443                                     offset,
1444                                     markerLength
1445                                 );
1446                             }
1447
1448                             offset += markerLength;
1449
1450                             continue;
1451                         }
1452
1453                         break;
1454                     }
1455
1456                 }
1457
1458                 var url = _this.urlAPI.createObjectURL(_this.file);
1459
1460                 _this.loadCanvas(url);
1461
1462                 return;
1463             }
1464
1465             reader.readAsArrayBuffer(this.file);
1466
1467         }
1468
1469     },
1470
1471     parseExifData : function(dataView, offset, length)
1472     {
1473         var tiffOffset = offset + 10,
1474             littleEndian,
1475             dirOffset;
1476
1477         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1478             // No Exif data, might be XMP data instead
1479             return;
1480         }
1481
1482         // Check for the ASCII code for "Exif" (0x45786966):
1483         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1484             // No Exif data, might be XMP data instead
1485             return;
1486         }
1487         if (tiffOffset + 8 > dataView.byteLength) {
1488             Roo.log('Invalid Exif data: Invalid segment size.');
1489             return;
1490         }
1491         // Check for the two null bytes:
1492         if (dataView.getUint16(offset + 8) !== 0x0000) {
1493             Roo.log('Invalid Exif data: Missing byte alignment offset.');
1494             return;
1495         }
1496         // Check the byte alignment:
1497         switch (dataView.getUint16(tiffOffset)) {
1498         case 0x4949:
1499             littleEndian = true;
1500             break;
1501         case 0x4D4D:
1502             littleEndian = false;
1503             break;
1504         default:
1505             Roo.log('Invalid Exif data: Invalid byte alignment marker.');
1506             return;
1507         }
1508         // Check for the TIFF tag marker (0x002A):
1509         if (dataView.getUint16(tiffOffset + 2, littleEndian) !== 0x002A) {
1510             Roo.log('Invalid Exif data: Missing TIFF marker.');
1511             return;
1512         }
1513         // Retrieve the directory offset bytes, usually 0x00000008 or 8 decimal:
1514         dirOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
1515
1516         this.parseExifTags(
1517             dataView,
1518             tiffOffset,
1519             tiffOffset + dirOffset,
1520             littleEndian
1521         );
1522     },
1523
1524     parseExifTags : function(dataView, tiffOffset, dirOffset, littleEndian)
1525     {
1526         var tagsNumber,
1527             dirEndOffset,
1528             i;
1529         if (dirOffset + 6 > dataView.byteLength) {
1530             Roo.log('Invalid Exif data: Invalid directory offset.');
1531             return;
1532         }
1533         tagsNumber = dataView.getUint16(dirOffset, littleEndian);
1534         dirEndOffset = dirOffset + 2 + 12 * tagsNumber;
1535         if (dirEndOffset + 4 > dataView.byteLength) {
1536             Roo.log('Invalid Exif data: Invalid directory size.');
1537             return;
1538         }
1539         for (i = 0; i < tagsNumber; i += 1) {
1540             this.parseExifTag(
1541                 dataView,
1542                 tiffOffset,
1543                 dirOffset + 2 + 12 * i, // tag offset
1544                 littleEndian
1545             );
1546         }
1547         // Return the offset to the next directory:
1548         return dataView.getUint32(dirEndOffset, littleEndian);
1549     },
1550
1551     parseExifTag : function (dataView, tiffOffset, offset, littleEndian)
1552     {
1553         var tag = dataView.getUint16(offset, littleEndian);
1554
1555         this.exif[tag] = this.getExifValue(
1556             dataView,
1557             tiffOffset,
1558             offset,
1559             dataView.getUint16(offset + 2, littleEndian), // tag type
1560             dataView.getUint32(offset + 4, littleEndian), // tag length
1561             littleEndian
1562         );
1563     },
1564
1565     getExifValue : function (dataView, tiffOffset, offset, type, length, littleEndian)
1566     {
1567         var tagType = Roo.dialog.UploadCropbox.exifTagTypes[type],
1568             tagSize,
1569             dataOffset,
1570             values,
1571             i,
1572             str,
1573             c;
1574
1575         if (!tagType) {
1576             Roo.log('Invalid Exif data: Invalid tag type.');
1577             return;
1578         }
1579
1580         tagSize = tagType.size * length;
1581         // Determine if the value is contained in the dataOffset bytes,
1582         // or if the value at the dataOffset is a pointer to the actual data:
1583         dataOffset = tagSize > 4 ?
1584                 tiffOffset + dataView.getUint32(offset + 8, littleEndian) : (offset + 8);
1585         if (dataOffset + tagSize > dataView.byteLength) {
1586             Roo.log('Invalid Exif data: Invalid data offset.');
1587             return;
1588         }
1589         if (length === 1) {
1590             return tagType.getValue(dataView, dataOffset, littleEndian);
1591         }
1592         values = [];
1593         for (i = 0; i < length; i += 1) {
1594             values[i] = tagType.getValue(dataView, dataOffset + i * tagType.size, littleEndian);
1595         }
1596
1597         if (tagType.ascii) {
1598             str = '';
1599             // Concatenate the chars:
1600             for (i = 0; i < values.length; i += 1) {
1601                 c = values[i];
1602                 // Ignore the terminating NULL byte(s):
1603                 if (c === '\u0000') {
1604                     break;
1605                 }
1606                 str += c;
1607             }
1608             return str;
1609         }
1610         return values;
1611     }
1612
1613 });
1614
1615 Roo.apply(Roo.dialog.UploadCropbox, {
1616     tags : {
1617         'Orientation': 0x0112
1618     },
1619
1620     Orientation: {
1621             1: 0, //'top-left',
1622 //            2: 'top-right',
1623             3: 180, //'bottom-right',
1624 //            4: 'bottom-left',
1625 //            5: 'left-top',
1626             6: 90, //'right-top',
1627 //            7: 'right-bottom',
1628             8: 270 //'left-bottom'
1629     },
1630
1631     exifTagTypes : {
1632         // byte, 8-bit unsigned int:
1633         1: {
1634             getValue: function (dataView, dataOffset) {
1635                 return dataView.getUint8(dataOffset);
1636             },
1637             size: 1
1638         },
1639         // ascii, 8-bit byte:
1640         2: {
1641             getValue: function (dataView, dataOffset) {
1642                 return String.fromCharCode(dataView.getUint8(dataOffset));
1643             },
1644             size: 1,
1645             ascii: true
1646         },
1647         // short, 16 bit int:
1648         3: {
1649             getValue: function (dataView, dataOffset, littleEndian) {
1650                 return dataView.getUint16(dataOffset, littleEndian);
1651             },
1652             size: 2
1653         },
1654         // long, 32 bit int:
1655         4: {
1656             getValue: function (dataView, dataOffset, littleEndian) {
1657                 return dataView.getUint32(dataOffset, littleEndian);
1658             },
1659             size: 4
1660         },
1661         // rational = two long values, first is numerator, second is denominator:
1662         5: {
1663             getValue: function (dataView, dataOffset, littleEndian) {
1664                 return dataView.getUint32(dataOffset, littleEndian) /
1665                     dataView.getUint32(dataOffset + 4, littleEndian);
1666             },
1667             size: 8
1668         },
1669         // slong, 32 bit signed int:
1670         9: {
1671             getValue: function (dataView, dataOffset, littleEndian) {
1672                 return dataView.getInt32(dataOffset, littleEndian);
1673             },
1674             size: 4
1675         },
1676         // srational, two slongs, first is numerator, second is denominator:
1677         10: {
1678             getValue: function (dataView, dataOffset, littleEndian) {
1679                 return dataView.getInt32(dataOffset, littleEndian) /
1680                     dataView.getInt32(dataOffset + 4, littleEndian);
1681             },
1682             size: 8
1683         }
1684     },
1685
1686     footer : {
1687         STANDARD : [
1688             {
1689                 tag : 'div',
1690                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1691                 action : 'rotate-left',
1692                 cn : [
1693                     {
1694                         tag : 'button',
1695                         cls : 'btn btn-default',
1696                         html : '<i class="fa fa-undo"></i>'
1697                     }
1698                 ]
1699             },
1700             {
1701                 tag : 'div',
1702                 cls : 'btn-group roo-upload-cropbox-picture',
1703                 action : 'picture',
1704                 cn : [
1705                     {
1706                         tag : 'button',
1707                         cls : 'btn btn-default',
1708                         html : '<i class="fa fa-picture-o"></i>'
1709                     }
1710                 ]
1711             },
1712             {
1713                 tag : 'div',
1714                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1715                 action : 'rotate-right',
1716                 cn : [
1717                     {
1718                         tag : 'button',
1719                         cls : 'btn btn-default',
1720                         html : '<i class="fa fa-repeat"></i>'
1721                     }
1722                 ]
1723             }
1724         ],
1725         DOCUMENT : [
1726             {
1727                 tag : 'div',
1728                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1729                 action : 'rotate-left',
1730                 cn : [
1731                     {
1732                         tag : 'button',
1733                         cls : 'btn btn-default',
1734                         html : '<i class="fa fa-undo"></i>'
1735                     }
1736                 ]
1737             },
1738             {
1739                 tag : 'div',
1740                 cls : 'btn-group roo-upload-cropbox-download',
1741                 action : 'download',
1742                 cn : [
1743                     {
1744                         tag : 'button',
1745                         cls : 'btn btn-default',
1746                         html : '<i class="fa fa-download"></i>'
1747                     }
1748                 ]
1749             },
1750             {
1751                 tag : 'div',
1752                 cls : 'btn-group roo-upload-cropbox-crop',
1753                 action : 'crop',
1754                 cn : [
1755                     {
1756                         tag : 'button',
1757                         cls : 'btn btn-default',
1758                         html : '<i class="fa fa-crop"></i>'
1759                     }
1760                 ]
1761             },
1762             {
1763                 tag : 'div',
1764                 cls : 'btn-group roo-upload-cropbox-trash',
1765                 action : 'trash',
1766                 cn : [
1767                     {
1768                         tag : 'button',
1769                         cls : 'btn btn-default',
1770                         html : '<i class="fa fa-trash"></i>'
1771                     }
1772                 ]
1773             },
1774             {
1775                 tag : 'div',
1776                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1777                 action : 'rotate-right',
1778                 cn : [
1779                     {
1780                         tag : 'button',
1781                         cls : 'btn btn-default',
1782                         html : '<i class="fa fa-repeat"></i>'
1783                     }
1784                 ]
1785             }
1786         ],
1787         ROTATOR : [
1788             {
1789                 tag : 'div',
1790                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1791                 action : 'rotate-left',
1792                 cn : [
1793                     {
1794                         tag : 'button',
1795                         cls : 'btn btn-default',
1796                         html : '<i class="fa fa-undo"></i>'
1797                     }
1798                 ]
1799             },
1800             {
1801                 tag : 'div',
1802                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1803                 action : 'rotate-right',
1804                 cn : [
1805                     {
1806                         tag : 'button',
1807                         cls : 'btn btn-default',
1808                         html : '<i class="fa fa-repeat"></i>'
1809                     }
1810                 ]
1811             }
1812         ]
1813     }
1814 });