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         console.log("ON MOUSE DOWN");
 489         e.stopEvent();
 490
 491         this.dragable = true;
 492         this.pinching = false;
 493
 494         if(this.isDocument && (this.canvasEl.width < this.thumbEl.getWidth() || this.canvasEl.height < this.thumbEl.getHeight())){
 495             this.dragable = false;
 496             return;
 497         }
 498
 499         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 500         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 501
 502     },
 503
 504     onMouseMove : function(e)
 505     {
 506         console.log ("ON MOUSE MOVE");
 507         e.stopEvent();
 508
 509         if(!this.canvasLoaded){
 510             return;
 511         }
 512
 513         if (!this.dragable){
 514             return;
 515         }
 516
 517         var minX = Math.ceil(this.thumbEl.getLeft(true));
 518         var minY = Math.ceil(this.thumbEl.getTop(true));
 519
 520         console.log("minX");
 521         console.log(minX);
 522         console.log("minY");
 523         console.log(minY);
 524
 525         var maxX = Math.ceil(minX + this.thumbEl.getWidth() - this.canvasEl.width);
 526         var maxY = Math.ceil(minY + this.thumbEl.getHeight() - this.canvasEl.height);
 527
 528         console.log("maxX");
 529         console.log(maxX);
 530         console.log("maxY");
 531         console.log(maxY);
 532
 533         if(minX < maxX && minY < maxY) {
 534             return;
 535         }
 536
 537         var x = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 538         var y = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 539
 540         x = x - this.mouseX;
 541         y = y - this.mouseY;
 542
 543         console.log("MOVE LEFT / RIGHT");
 544         console.log(x);
 545         console.log("MOVE UP / DOWN");
 546         console.log(y);
 547
 548         var bgX = Math.ceil(x + this.previewEl.getLeft(true));
 549         var bgY = Math.ceil(y + this.previewEl.getTop(true));
 550
 551         // bgX = (minX < bgX) ? minX : ((maxX > bgX) ? maxX : bgX);
 552         bgY = (minY < bgY) ? minY : ((maxY > bgY) ? maxY : bgY);
 553
 554         this.previewEl.setLeft(bgX);
 555         this.previewEl.setTop(bgY);
 556
 557         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 558         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 559     },
 560
 561     onMouseUp : function(e)
 562     {
 563         e.stopEvent();
 564
 565         this.dragable = false;
 566     },
 567
 568     onMouseWheel : function(e)
 569     {
 570         e.stopEvent();
 571
 572         this.startScale = this.scale;
 573         this.scale = (e.getWheelDelta() == 1) ? (this.scale + 1) : (this.scale - 1);
 574         if(!this.zoomable()){
 575             this.scale = this.startScale;
 576             return;
 577         }
 578
 579         this.draw();
 580
 581         return;
 582     },
 583
 584     zoomable : function()
 585     {
 586         var minScale = this.thumbEl.getWidth() / this.minWidth;
 587
 588         if(this.minWidth < this.minHeight){
 589             minScale = this.thumbEl.getHeight() / this.minHeight;
 590         }
 591
 592         var width = Math.ceil(this.imageEl.OriginWidth * this.getScaleLevel() / minScale);
 593         var height = Math.ceil(this.imageEl.OriginHeight * this.getScaleLevel() / minScale);
 594
 595         var maxWidth = this.imageEl.OriginWidth;
 596         var maxHeight = this.imageEl.OriginHeight;
 597
 598         if(
 599                 this.isDocument &&
 600                 (this.rotate == 0 || this.rotate == 180) &&
 601                 (
 602                     width > this.imageEl.OriginWidth ||
 603                     height > this.imageEl.OriginHeight ||
 604                     (width < this.minWidth && height < this.minHeight)
 605                 )
 606         ){
 607             return false;
 608         }
 609
 610         if(
 611                 this.isDocument &&
 612                 (this.rotate == 90 || this.rotate == 270) &&
 613                 (
 614                     width > this.imageEl.OriginWidth ||
 615                     height > this.imageEl.OriginHeight ||
 616                     (width < this.minHeight && height < this.minWidth)
 617                 )
 618         ){
 619             return false;
 620         }
 621
 622         if(
 623                 !this.isDocument &&
 624                 (this.rotate == 0 || this.rotate == 180) &&
 625                 (
 626                     width < this.minWidth ||
 627                     height < this.minHeight ||
 628                     width > maxWidth ||
 629                     height > maxHeight
 630                 )
 631         ){
 632             return false;
 633         }
 634
 635         if(
 636                 !this.isDocument &&
 637                 (this.rotate == 90 || this.rotate == 270) &&
 638                 (
 639                     width < this.minHeight ||
 640                     width > this.imageEl.OriginWidth ||
 641                     height < this.minWidth ||
 642                     height > this.imageEl.OriginHeight
 643                 )
 644         ){
 645             return false;
 646         }
 647
 648         return true;
 649
 650     },
 651
 652     onRotateLeft : function(e)
 653     {
 654         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 655
 656             var minScale = this.thumbEl.getWidth() / this.minWidth;
 657
 658             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 659             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 660
 661             this.startScale = this.scale;
 662
 663             while (this.getScaleLevel() < minScale){
 664
 665                 this.scale = this.scale + 1;
 666
 667                 if(!this.zoomable()){
 668                     break;
 669                 }
 670
 671                 if(
 672                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 673                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 674                 ){
 675                     continue;
 676                 }
 677
 678                 this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 679
 680                 this.draw();
 681
 682                 return;
 683             }
 684
 685             this.scale = this.startScale;
 686
 687             this.onRotateFail();
 688
 689             return false;
 690         }
 691
 692         this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 693
 694         if(this.isDocument){
 695             this.setThumbBoxSize();
 696             this.setThumbBoxPosition();
 697             this.setCanvasPosition();
 698         }
 699
 700         this.draw();
 701
 702         this.fireEvent('rotate', this, 'left');
 703
 704     },
 705
 706     onRotateRight : function(e)
 707     {
 708         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 709
 710             var minScale = this.thumbEl.getWidth() / this.minWidth;
 711
 712             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 713             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 714
 715             this.startScale = this.scale;
 716
 717             while (this.getScaleLevel() < minScale){
 718
 719                 this.scale = this.scale + 1;
 720
 721                 if(!this.zoomable()){
 722                     break;
 723                 }
 724
 725                 if(
 726                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 727                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 728                 ){
 729                     continue;
 730                 }
 731
 732                 this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 733
 734                 this.draw();
 735
 736                 return;
 737             }
 738
 739             this.scale = this.startScale;
 740
 741             this.onRotateFail();
 742
 743             return false;
 744         }
 745
 746         this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 747
 748         if(this.isDocument){
 749             this.setThumbBoxSize();
 750             this.setThumbBoxPosition();
 751             this.setCanvasPosition();
 752         }
 753
 754         this.draw();
 755
 756         this.fireEvent('rotate', this, 'right');
 757     },
 758
 759     onRotateFail : function()
 760     {
 761         this.errorEl.show(true);
 762
 763         var _this = this;
 764
 765         (function() { _this.errorEl.hide(true); }).defer(this.errorTimeout);
 766     },
 767
 768     draw : function()
 769     {
 770         console.log("DRAW");
 771         this.previewEl.dom.innerHTML = '';
 772
 773         var canvasEl = document.createElement("canvas");
 774
 775         var contextEl = canvasEl.getContext("2d");
 776
 777         console.log(this.getScaleLevel());
 778
 779         canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 780         canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 781         var center = this.imageEl.OriginWidth / 2;
 782
 783         if(this.imageEl.OriginWidth < this.imageEl.OriginHeight){
 784             canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 785             canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 786             center = this.imageEl.OriginHeight / 2;
 787         }
 788
 789         contextEl.scale(this.getScaleLevel(), this.getScaleLevel());
 790
 791         contextEl.translate(center, center);
 792         contextEl.rotate(this.rotate * Math.PI / 180);
 793
 794         contextEl.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 795
 796         this.canvasEl = document.createElement("canvas");
 797
 798         this.contextEl = this.canvasEl.getContext("2d");
 799
 800         switch (this.rotate) {
 801             case 0 :
 802
 803                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 804                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 805
 806                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 807
 808                 break;
 809             case 90 :
 810
 811                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 812                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 813
 814                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 815                     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);
 816                     break;
 817                 }
 818
 819                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 820
 821                 break;
 822             case 180 :
 823
 824                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 825                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 826
 827                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 828                     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);
 829                     break;
 830                 }
 831
 832                 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);
 833
 834                 break;
 835             case 270 :
 836
 837                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 838                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 839
 840                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 841                     this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 842                     break;
 843                 }
 844
 845                 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);
 846
 847                 break;
 848             default :
 849                 break;
 850         }
 851
 852         this.previewEl.appendChild(this.canvasEl);
 853
 854         this.setCanvasPosition();
 855     },
 856
 857     crop : function()
 858     {
 859         if(!this.canvasLoaded){
 860             return;
 861         }
 862
 863         var imageCanvas = document.createElement("canvas");
 864
 865         var imageContext = imageCanvas.getContext("2d");
 866
 867         imageCanvas.width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 868         imageCanvas.height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 869
 870         var center = imageCanvas.width / 2;
 871
 872         imageContext.translate(center, center);
 873
 874         imageContext.rotate(this.rotate * Math.PI / 180);
 875
 876         imageContext.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 877
 878         var canvas = document.createElement("canvas");
 879
 880         var context = canvas.getContext("2d");
 881
 882         canvas.width = this.minWidth;
 883         canvas.height = this.minHeight;
 884
 885         switch (this.rotate) {
 886             case 0 :
 887
 888                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 889                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 890
 891                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 892                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 893
 894                 var targetWidth = this.minWidth - 2 * x;
 895                 var targetHeight = this.minHeight - 2 * y;
 896
 897                 var scale = 1;
 898
 899                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 900                     scale = targetWidth / width;
 901                 }
 902
 903                 if(x > 0 && y == 0){
 904                     scale = targetHeight / height;
 905                 }
 906
 907                 if(x > 0 && y > 0){
 908                     scale = targetWidth / width;
 909
 910                     if(width < height){
 911                         scale = targetHeight / height;
 912                     }
 913                 }
 914
 915                 context.scale(scale, scale);
 916
 917                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 918                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 919
 920                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 921                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 922
 923                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 924
 925                 break;
 926             case 90 :
 927
 928                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 929                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 930
 931                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 932                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 933
 934                 var targetWidth = this.minWidth - 2 * x;
 935                 var targetHeight = this.minHeight - 2 * y;
 936
 937                 var scale = 1;
 938
 939                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 940                     scale = targetWidth / width;
 941                 }
 942
 943                 if(x > 0 && y == 0){
 944                     scale = targetHeight / height;
 945                 }
 946
 947                 if(x > 0 && y > 0){
 948                     scale = targetWidth / width;
 949
 950                     if(width < height){
 951                         scale = targetHeight / height;
 952                     }
 953                 }
 954
 955                 context.scale(scale, scale);
 956
 957                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 958                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 959
 960                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 961                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 962
 963                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 964
 965                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 966
 967                 break;
 968             case 180 :
 969
 970                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 971                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 972
 973                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 974                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 975
 976                 var targetWidth = this.minWidth - 2 * x;
 977                 var targetHeight = this.minHeight - 2 * y;
 978
 979                 var scale = 1;
 980
 981                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 982                     scale = targetWidth / width;
 983                 }
 984
 985                 if(x > 0 && y == 0){
 986                     scale = targetHeight / height;
 987                 }
 988
 989                 if(x > 0 && y > 0){
 990                     scale = targetWidth / width;
 991
 992                     if(width < height){
 993                         scale = targetHeight / height;
 994                     }
 995                 }
 996
 997                 context.scale(scale, scale);
 998
 999                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1000                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1001
1002                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1003                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1004
1005                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1006                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
1007
1008                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1009
1010                 break;
1011             case 270 :
1012
1013                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
1014                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
1015
1016                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1017                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1018
1019                 var targetWidth = this.minWidth - 2 * x;
1020                 var targetHeight = this.minHeight - 2 * y;
1021
1022                 var scale = 1;
1023
1024                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1025                     scale = targetWidth / width;
1026                 }
1027
1028                 if(x > 0 && y == 0){
1029                     scale = targetHeight / height;
1030                 }
1031
1032                 if(x > 0 && y > 0){
1033                     scale = targetWidth / width;
1034
1035                     if(width < height){
1036                         scale = targetHeight / height;
1037                     }
1038                 }
1039
1040                 context.scale(scale, scale);
1041
1042                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1043                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1044
1045                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1046                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1047
1048                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1049
1050                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1051
1052                 break;
1053             default :
1054                 break;
1055         }
1056
1057         this.cropData = canvas.toDataURL(this.cropType);
1058
1059         if(this.fireEvent('crop', this, this.cropData) !== false){
1060             this.process(this.file, this.cropData);
1061         }
1062
1063         return;
1064
1065     },
1066
1067     setThumbBoxSize : function()
1068     {
1069         var width, height;
1070
1071         if(this.isDocument && typeof(this.imageEl) != 'undefined'){
1072             width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.max(this.minWidth, this.minHeight) : Math.min(this.minWidth, this.minHeight);
1073             height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.min(this.minWidth, this.minHeight) : Math.max(this.minWidth, this.minHeight);
1074
1075             this.minWidth = width;
1076             this.minHeight = height;
1077
1078             if(this.rotate == 90 || this.rotate == 270){
1079                 this.minWidth = height;
1080                 this.minHeight = width;
1081             }
1082         }
1083
1084         height = 300;
1085         width = Math.ceil(this.minWidth * height / this.minHeight);
1086
1087         if(this.minWidth > this.minHeight){
1088             width = 300;
1089             height = Math.ceil(this.minHeight * width / this.minWidth);
1090         }
1091
1092         this.thumbEl.setStyle({
1093             width : width + 'px',
1094             height : height + 'px'
1095         });
1096
1097         return;
1098
1099     },
1100
1101     setThumbBoxPosition : function()
1102     {
1103         console.log("SET THUMBBOX POSITION");
1104         var x = Math.ceil((this.bodyEl.getWidth() - this.thumbEl.getWidth()) / 2 );
1105         var y = Math.ceil((this.bodyEl.getHeight() - this.thumbEl.getHeight()) / 2);
1106
1107         this.thumbEl.setLeft(x);
1108         this.thumbEl.setTop(y);
1109
1110     },
1111
1112     baseRotateLevel : function()
1113     {
1114         console.log("BASE ROTATE LEVEL");
1115         this.baseRotate = 1;
1116
1117         if(
1118                 typeof(this.exif) != 'undefined' &&
1119                 typeof(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != 'undefined' &&
1120                 [1, 3, 6, 8].indexOf(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != -1
1121         ){
1122             this.baseRotate = this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']];
1123         }
1124
1125         this.rotate = Roo.dialog.UploadCropbox['Orientation'][this.baseRotate];
1126
1127     },
1128
1129     baseScaleLevel : function()
1130     {
1131         console.log("BASE SCALE LEVEL");
1132         var width, height;
1133
1134         if(this.isDocument){
1135
1136             if(this.baseRotate == 6 || this.baseRotate == 8){
1137
1138                 height = this.thumbEl.getHeight();
1139                 this.baseScale = height / this.imageEl.OriginWidth;
1140
1141                 if(this.imageEl.OriginHeight * this.baseScale > this.thumbEl.getWidth()){
1142                     width = this.thumbEl.getWidth();
1143                     this.baseScale = width / this.imageEl.OriginHeight;
1144                 }
1145
1146                 return;
1147             }
1148
1149             height = this.thumbEl.getHeight();
1150             this.baseScale = height / this.imageEl.OriginHeight;
1151
1152             if(this.imageEl.OriginWidth * this.baseScale > this.thumbEl.getWidth()){
1153                 width = this.thumbEl.getWidth();
1154                 this.baseScale = width / this.imageEl.OriginWidth;
1155             }
1156
1157             return;
1158         }
1159
1160         if(this.baseRotate == 6 || this.baseRotate == 8){
1161
1162             width = this.thumbEl.getHeight();
1163             this.baseScale = width / this.imageEl.OriginHeight;
1164
1165             if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getWidth()){
1166                 height = this.thumbEl.getWidth();
1167                 this.baseScale = height / this.imageEl.OriginHeight;
1168             }
1169
1170             if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1171                 height = this.thumbEl.getWidth();
1172                 this.baseScale = height / this.imageEl.OriginHeight;
1173
1174                 if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getHeight()){
1175                     width = this.thumbEl.getHeight();
1176                     this.baseScale = width / this.imageEl.OriginWidth;
1177                 }
1178             }
1179
1180             return;
1181         }
1182
1183         width = this.thumbEl.getWidth();
1184         this.baseScale = width / this.imageEl.OriginWidth;
1185
1186         if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getHeight()){
1187             height = this.thumbEl.getHeight();
1188             this.baseScale = height / this.imageEl.OriginHeight;
1189         }
1190
1191         if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1192
1193             height = this.thumbEl.getHeight();
1194             this.baseScale = height / this.imageEl.OriginHeight;
1195
1196             if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getWidth()){
1197                 width = this.thumbEl.getWidth();
1198                 this.baseScale = width / this.imageEl.OriginWidth;
1199             }
1200
1201         }
1202
1203         if(this.imageEl.OriginWidth < this.minWidth || this.imageEl.OriginHeight < this.minHeight) {
1204             this.baseScale = width / this.minWidth;
1205         }
1206         console.log(this.baseScale);
1207         return;
1208     },
1209
1210     getScaleLevel : function()
1211     {
1212         return this.baseScale * Math.pow(1.02, this.scale);
1213     },
1214
1215     onTouchStart : function(e)
1216     {
1217         if(!this.canvasLoaded){
1218             this.beforeSelectFile(e);
1219             return;
1220         }
1221
1222         var touches = e.browserEvent.touches;
1223
1224         if(!touches){
1225             return;
1226         }
1227
1228         if(touches.length == 1){
1229             this.onMouseDown(e);
1230             return;
1231         }
1232
1233         if(touches.length != 2){
1234             return;
1235         }
1236
1237         var coords = [];
1238
1239         for(var i = 0, finger; finger = touches[i]; i++){
1240             coords.push(finger.pageX, finger.pageY);
1241         }
1242
1243         var x = Math.pow(coords[0] - coords[2], 2);
1244         var y = Math.pow(coords[1] - coords[3], 2);
1245
1246         this.startDistance = Math.sqrt(x + y);
1247
1248         this.startScale = this.scale;
1249
1250         this.pinching = true;
1251         this.dragable = false;
1252
1253     },
1254
1255     onTouchMove : function(e)
1256     {
1257         if(!this.pinching && !this.dragable){
1258             return;
1259         }
1260
1261         var touches = e.browserEvent.touches;
1262
1263         if(!touches){
1264             return;
1265         }
1266
1267         if(this.dragable){
1268             this.onMouseMove(e);
1269             return;
1270         }
1271
1272         var coords = [];
1273
1274         for(var i = 0, finger; finger = touches[i]; i++){
1275             coords.push(finger.pageX, finger.pageY);
1276         }
1277
1278         var x = Math.pow(coords[0] - coords[2], 2);
1279         var y = Math.pow(coords[1] - coords[3], 2);
1280
1281         this.endDistance = Math.sqrt(x + y);
1282
1283         this.scale = this.startScale + Math.floor(Math.log(this.endDistance / this.startDistance) / Math.log(1.1));
1284
1285         if(!this.zoomable()){
1286             this.scale = this.startScale;
1287             return;
1288         }
1289
1290         this.draw();
1291
1292     },
1293
1294     onTouchEnd : function(e)
1295     {
1296         this.pinching = false;
1297         this.dragable = false;
1298
1299     },
1300
1301     process : function(file, crop)
1302     {
1303         if(this.loadMask){
1304             this.maskEl.mask(this.loadingText);
1305         }
1306
1307         this.xhr = new XMLHttpRequest();
1308
1309         file.xhr = this.xhr;
1310
1311         this.xhr.open(this.method, this.url, true);
1312
1313         var headers = {
1314             "Accept": "application/json",
1315             "Cache-Control": "no-cache",
1316             "X-Requested-With": "XMLHttpRequest"
1317         };
1318
1319         for (var headerName in headers) {
1320             var headerValue = headers[headerName];
1321             if (headerValue) {
1322                 this.xhr.setRequestHeader(headerName, headerValue);
1323             }
1324         }
1325
1326         var _this = this;
1327
1328         this.xhr.onload = function()
1329         {
1330             _this.xhrOnLoad(_this.xhr);
1331         }
1332
1333         this.xhr.onerror = function()
1334         {
1335             _this.xhrOnError(_this.xhr);
1336         }
1337
1338         var formData = new FormData();
1339
1340         formData.append('returnHTML', 'NO');
1341
1342         if(crop){
1343             formData.append('crop', crop);
1344         }
1345
1346         if(typeof(file) != 'undefined' && (typeof(file.id) == 'undefined' || file.id * 1 < 1)){
1347             formData.append(this.paramName, file, file.name);
1348         }
1349
1350         if(typeof(file.filename) != 'undefined'){
1351             formData.append('filename', file.filename);
1352         }
1353
1354         if(typeof(file.mimetype) != 'undefined'){
1355             formData.append('mimetype', file.mimetype);
1356         }
1357
1358         if(this.fireEvent('arrange', this, formData) != false){
1359             this.xhr.send(formData);
1360         };
1361     },
1362
1363     xhrOnLoad : function(xhr)
1364     {
1365         if(this.loadMask){
1366             this.maskEl.unmask();
1367         }
1368
1369         if (xhr.readyState !== 4) {
1370             this.fireEvent('exception', this, xhr);
1371             return;
1372         }
1373
1374         var response = Roo.decode(xhr.responseText);
1375
1376         if(!response.success){
1377             this.fireEvent('exception', this, xhr);
1378             return;
1379         }
1380
1381         var response = Roo.decode(xhr.responseText);
1382
1383         this.fireEvent('upload', this, response);
1384
1385     },
1386
1387     xhrOnError : function()
1388     {
1389         if(this.loadMask){
1390             this.maskEl.unmask();
1391         }
1392
1393         Roo.log('xhr on error');
1394
1395         var response = Roo.decode(xhr.responseText);
1396
1397         Roo.log(response);
1398
1399     },
1400
1401     prepare : function(file)
1402     {
1403         console.log("PREPARE");
1404         console.log(file);
1405         if(this.loadMask){
1406             this.maskEl.mask(this.loadingText);
1407         }
1408
1409         this.file = false;
1410         this.exif = {};
1411
1412         if(typeof(file) === 'string'){
1413             this.loadCanvas(file);
1414             return;
1415         }
1416
1417         if(!file || !this.urlAPI){
1418             return;
1419         }
1420
1421         this.file = file;
1422         this.cropType = file.type;
1423
1424         var _this = this;
1425
1426         if(this.fireEvent('prepare', this, this.file) != false){
1427
1428             var reader = new FileReader();
1429
1430             reader.onload = function (e) {
1431                 if (e.target.error) {
1432                     Roo.log(e.target.error);
1433                     return;
1434                 }
1435
1436                 var buffer = e.target.result,
1437                     dataView = new DataView(buffer),
1438                     offset = 2,
1439                     maxOffset = dataView.byteLength - 4,
1440                     markerBytes,
1441                     markerLength;
1442
1443                 if (dataView.getUint16(0) === 0xffd8) {
1444                     while (offset < maxOffset) {
1445                         markerBytes = dataView.getUint16(offset);
1446
1447                         if ((markerBytes >= 0xffe0 && markerBytes <= 0xffef) || markerBytes === 0xfffe) {
1448                             markerLength = dataView.getUint16(offset + 2) + 2;
1449                             if (offset + markerLength > dataView.byteLength) {
1450                                 Roo.log('Invalid meta data: Invalid segment size.');
1451                                 break;
1452                             }
1453
1454                             if(markerBytes == 0xffe1){
1455                                 _this.parseExifData(
1456                                     dataView,
1457                                     offset,
1458                                     markerLength
1459                                 );
1460                             }
1461
1462                             offset += markerLength;
1463
1464                             continue;
1465                         }
1466
1467                         break;
1468                     }
1469
1470                 }
1471
1472                 var url = _this.urlAPI.createObjectURL(_this.file);
1473
1474                 _this.loadCanvas(url);
1475
1476                 return;
1477             }
1478
1479             reader.readAsArrayBuffer(this.file);
1480
1481         }
1482
1483     },
1484
1485     parseExifData : function(dataView, offset, length)
1486     {
1487         var tiffOffset = offset + 10,
1488             littleEndian,
1489             dirOffset;
1490
1491         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1492             // No Exif data, might be XMP data instead
1493             return;
1494         }
1495
1496         // Check for the ASCII code for "Exif" (0x45786966):
1497         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1498             // No Exif data, might be XMP data instead
1499             return;
1500         }
1501         if (tiffOffset + 8 > dataView.byteLength) {
1502             Roo.log('Invalid Exif data: Invalid segment size.');
1503             return;
1504         }
1505         // Check for the two null bytes:
1506         if (dataView.getUint16(offset + 8) !== 0x0000) {
1507             Roo.log('Invalid Exif data: Missing byte alignment offset.');
1508             return;
1509         }
1510         // Check the byte alignment:
1511         switch (dataView.getUint16(tiffOffset)) {
1512         case 0x4949:
1513             littleEndian = true;
1514             break;
1515         case 0x4D4D:
1516             littleEndian = false;
1517             break;
1518         default:
1519             Roo.log('Invalid Exif data: Invalid byte alignment marker.');
1520             return;
1521         }
1522         // Check for the TIFF tag marker (0x002A):
1523         if (dataView.getUint16(tiffOffset + 2, littleEndian) !== 0x002A) {
1524             Roo.log('Invalid Exif data: Missing TIFF marker.');
1525             return;
1526         }
1527         // Retrieve the directory offset bytes, usually 0x00000008 or 8 decimal:
1528         dirOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
1529
1530         this.parseExifTags(
1531             dataView,
1532             tiffOffset,
1533             tiffOffset + dirOffset,
1534             littleEndian
1535         );
1536     },
1537
1538     parseExifTags : function(dataView, tiffOffset, dirOffset, littleEndian)
1539     {
1540         var tagsNumber,
1541             dirEndOffset,
1542             i;
1543         if (dirOffset + 6 > dataView.byteLength) {
1544             Roo.log('Invalid Exif data: Invalid directory offset.');
1545             return;
1546         }
1547         tagsNumber = dataView.getUint16(dirOffset, littleEndian);
1548         dirEndOffset = dirOffset + 2 + 12 * tagsNumber;
1549         if (dirEndOffset + 4 > dataView.byteLength) {
1550             Roo.log('Invalid Exif data: Invalid directory size.');
1551             return;
1552         }
1553         for (i = 0; i < tagsNumber; i += 1) {
1554             this.parseExifTag(
1555                 dataView,
1556                 tiffOffset,
1557                 dirOffset + 2 + 12 * i, // tag offset
1558                 littleEndian
1559             );
1560         }
1561         // Return the offset to the next directory:
1562         return dataView.getUint32(dirEndOffset, littleEndian);
1563     },
1564
1565     parseExifTag : function (dataView, tiffOffset, offset, littleEndian)
1566     {
1567         var tag = dataView.getUint16(offset, littleEndian);
1568
1569         this.exif[tag] = this.getExifValue(
1570             dataView,
1571             tiffOffset,
1572             offset,
1573             dataView.getUint16(offset + 2, littleEndian), // tag type
1574             dataView.getUint32(offset + 4, littleEndian), // tag length
1575             littleEndian
1576         );
1577     },
1578
1579     getExifValue : function (dataView, tiffOffset, offset, type, length, littleEndian)
1580     {
1581         var tagType = Roo.dialog.UploadCropbox.exifTagTypes[type],
1582             tagSize,
1583             dataOffset,
1584             values,
1585             i,
1586             str,
1587             c;
1588
1589         if (!tagType) {
1590             Roo.log('Invalid Exif data: Invalid tag type.');
1591             return;
1592         }
1593
1594         tagSize = tagType.size * length;
1595         // Determine if the value is contained in the dataOffset bytes,
1596         // or if the value at the dataOffset is a pointer to the actual data:
1597         dataOffset = tagSize > 4 ?
1598                 tiffOffset + dataView.getUint32(offset + 8, littleEndian) : (offset + 8);
1599         if (dataOffset + tagSize > dataView.byteLength) {
1600             Roo.log('Invalid Exif data: Invalid data offset.');
1601             return;
1602         }
1603         if (length === 1) {
1604             return tagType.getValue(dataView, dataOffset, littleEndian);
1605         }
1606         values = [];
1607         for (i = 0; i < length; i += 1) {
1608             values[i] = tagType.getValue(dataView, dataOffset + i * tagType.size, littleEndian);
1609         }
1610
1611         if (tagType.ascii) {
1612             str = '';
1613             // Concatenate the chars:
1614             for (i = 0; i < values.length; i += 1) {
1615                 c = values[i];
1616                 // Ignore the terminating NULL byte(s):
1617                 if (c === '\u0000') {
1618                     break;
1619                 }
1620                 str += c;
1621             }
1622             return str;
1623         }
1624         return values;
1625     }
1626
1627 });
1628
1629 Roo.apply(Roo.dialog.UploadCropbox, {
1630     tags : {
1631         'Orientation': 0x0112
1632     },
1633
1634     Orientation: {
1635             1: 0, //'top-left',
1636 //            2: 'top-right',
1637             3: 180, //'bottom-right',
1638 //            4: 'bottom-left',
1639 //            5: 'left-top',
1640             6: 90, //'right-top',
1641 //            7: 'right-bottom',
1642             8: 270 //'left-bottom'
1643     },
1644
1645     exifTagTypes : {
1646         // byte, 8-bit unsigned int:
1647         1: {
1648             getValue: function (dataView, dataOffset) {
1649                 return dataView.getUint8(dataOffset);
1650             },
1651             size: 1
1652         },
1653         // ascii, 8-bit byte:
1654         2: {
1655             getValue: function (dataView, dataOffset) {
1656                 return String.fromCharCode(dataView.getUint8(dataOffset));
1657             },
1658             size: 1,
1659             ascii: true
1660         },
1661         // short, 16 bit int:
1662         3: {
1663             getValue: function (dataView, dataOffset, littleEndian) {
1664                 return dataView.getUint16(dataOffset, littleEndian);
1665             },
1666             size: 2
1667         },
1668         // long, 32 bit int:
1669         4: {
1670             getValue: function (dataView, dataOffset, littleEndian) {
1671                 return dataView.getUint32(dataOffset, littleEndian);
1672             },
1673             size: 4
1674         },
1675         // rational = two long values, first is numerator, second is denominator:
1676         5: {
1677             getValue: function (dataView, dataOffset, littleEndian) {
1678                 return dataView.getUint32(dataOffset, littleEndian) /
1679                     dataView.getUint32(dataOffset + 4, littleEndian);
1680             },
1681             size: 8
1682         },
1683         // slong, 32 bit signed int:
1684         9: {
1685             getValue: function (dataView, dataOffset, littleEndian) {
1686                 return dataView.getInt32(dataOffset, littleEndian);
1687             },
1688             size: 4
1689         },
1690         // srational, two slongs, first is numerator, second is denominator:
1691         10: {
1692             getValue: function (dataView, dataOffset, littleEndian) {
1693                 return dataView.getInt32(dataOffset, littleEndian) /
1694                     dataView.getInt32(dataOffset + 4, littleEndian);
1695             },
1696             size: 8
1697         }
1698     },
1699
1700     footer : {
1701         STANDARD : [
1702             {
1703                 tag : 'div',
1704                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1705                 action : 'rotate-left',
1706                 cn : [
1707                     {
1708                         tag : 'button',
1709                         cls : 'btn btn-default',
1710                         html : '<i class="fa fa-undo"></i>'
1711                     }
1712                 ]
1713             },
1714             {
1715                 tag : 'div',
1716                 cls : 'btn-group roo-upload-cropbox-picture',
1717                 action : 'picture',
1718                 cn : [
1719                     {
1720                         tag : 'button',
1721                         cls : 'btn btn-default',
1722                         html : '<i class="fa fa-picture-o"></i>'
1723                     }
1724                 ]
1725             },
1726             {
1727                 tag : 'div',
1728                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1729                 action : 'rotate-right',
1730                 cn : [
1731                     {
1732                         tag : 'button',
1733                         cls : 'btn btn-default',
1734                         html : '<i class="fa fa-repeat"></i>'
1735                     }
1736                 ]
1737             }
1738         ],
1739         DOCUMENT : [
1740             {
1741                 tag : 'div',
1742                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1743                 action : 'rotate-left',
1744                 cn : [
1745                     {
1746                         tag : 'button',
1747                         cls : 'btn btn-default',
1748                         html : '<i class="fa fa-undo"></i>'
1749                     }
1750                 ]
1751             },
1752             {
1753                 tag : 'div',
1754                 cls : 'btn-group roo-upload-cropbox-download',
1755                 action : 'download',
1756                 cn : [
1757                     {
1758                         tag : 'button',
1759                         cls : 'btn btn-default',
1760                         html : '<i class="fa fa-download"></i>'
1761                     }
1762                 ]
1763             },
1764             {
1765                 tag : 'div',
1766                 cls : 'btn-group roo-upload-cropbox-crop',
1767                 action : 'crop',
1768                 cn : [
1769                     {
1770                         tag : 'button',
1771                         cls : 'btn btn-default',
1772                         html : '<i class="fa fa-crop"></i>'
1773                     }
1774                 ]
1775             },
1776             {
1777                 tag : 'div',
1778                 cls : 'btn-group roo-upload-cropbox-trash',
1779                 action : 'trash',
1780                 cn : [
1781                     {
1782                         tag : 'button',
1783                         cls : 'btn btn-default',
1784                         html : '<i class="fa fa-trash"></i>'
1785                     }
1786                 ]
1787             },
1788             {
1789                 tag : 'div',
1790                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1791                 action : 'rotate-right',
1792                 cn : [
1793                     {
1794                         tag : 'button',
1795                         cls : 'btn btn-default',
1796                         html : '<i class="fa fa-repeat"></i>'
1797                     }
1798                 ]
1799             }
1800         ],
1801         ROTATOR : [
1802             {
1803                 tag : 'div',
1804                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1805                 action : 'rotate-left',
1806                 cn : [
1807                     {
1808                         tag : 'button',
1809                         cls : 'btn btn-default',
1810                         html : '<i class="fa fa-undo"></i>'
1811                     }
1812                 ]
1813             },
1814             {
1815                 tag : 'div',
1816                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1817                 action : 'rotate-right',
1818                 cn : [
1819                     {
1820                         tag : 'button',
1821                         cls : 'btn btn-default',
1822                         html : '<i class="fa fa-repeat"></i>'
1823                     }
1824                 ]
1825             }
1826         ]
1827     }
1828 });