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     console.log("Dialog UploadCropbox Constructor");
  30     Roo.dialog.UploadCropbox.superclass.constructor.call(this, config);
  31
  32     this.addEvents({
  33         /**
  34          * @event beforeselectfile
  35          * Fire before select file
  36          * @param {Roo.dialog.UploadCropbox} this
  37          */
  38         "beforeselectfile" : true,
  39         /**
  40          * @event initial
  41          * Fire after initEvent
  42          * @param {Roo.dialog.UploadCropbox} this
  43          */
  44         "initial" : true,
  45         /**
  46          * @event crop
  47          * Fire after initEvent
  48          * @param {Roo.dialog.UploadCropbox} this
  49          * @param {String} data
  50          */
  51         "crop" : true,
  52         /**
  53          * @event prepare
  54          * Fire when preparing the file data
  55          * @param {Roo.dialog.UploadCropbox} this
  56          * @param {Object} file
  57          */
  58         "prepare" : true,
  59         /**
  60          * @event exception
  61          * Fire when get exception
  62          * @param {Roo.dialog.UploadCropbox} this
  63          * @param {XMLHttpRequest} xhr
  64          */
  65         "exception" : true,
  66         /**
  67          * @event beforeloadcanvas
  68          * Fire before load the canvas
  69          * @param {Roo.dialog.UploadCropbox} this
  70          * @param {String} src
  71          */
  72         "beforeloadcanvas" : true,
  73         /**
  74          * @event trash
  75          * Fire when trash image
  76          * @param {Roo.dialog.UploadCropbox} this
  77          */
  78         "trash" : true,
  79         /**
  80          * @event download
  81          * Fire when download the image
  82          * @param {Roo.dialog.UploadCropbox} this
  83          */
  84         "download" : true,
  85         /**
  86          * @event footerbuttonclick
  87          * Fire when footerbuttonclick
  88          * @param {Roo.dialog.UploadCropbox} this
  89          * @param {String} type
  90          */
  91         "footerbuttonclick" : true,
  92         /**
  93          * @event resize
  94          * Fire when resize
  95          * @param {Roo.dialog.UploadCropbox} this
  96          */
  97         "resize" : true,
  98         /**
  99          * @event rotate
 100          * Fire when rotate the image
 101          * @param {Roo.dialog.UploadCropbox} this
 102          * @param {String} pos
 103          */
 104         "rotate" : true,
 105         /**
 106          * @event inspect
 107          * Fire when inspect the file
 108          * @param {Roo.dialog.UploadCropbox} this
 109          * @param {Object} file
 110          */
 111         "inspect" : true,
 112         /**
 113          * @event upload
 114          * Fire when xhr upload the file
 115          * @param {Roo.dialog.UploadCropbox} this
 116          * @param {Object} data
 117          */
 118         "upload" : true,
 119         /**
 120          * @event arrange
 121          * Fire when arrange the file data
 122          * @param {Roo.dialog.UploadCropbox} this
 123          * @param {Object} formData
 124          */
 125         "arrange" : true
 126     });
 127
 128     this.buttons = this.buttons || Roo.dialog.UploadCropbox.footer.STANDARD;
 129 };
 130
 131 Roo.extend(Roo.dialog.UploadCropbox, Roo.Component,  {
 132
 133     emptyText : 'Click to upload image',
 134     rotateNotify : 'Image is too small to rotate',
 135     errorTimeout : 3000,
 136     scale : 0,
 137     baseScale : 1,
 138     rotate : 0,
 139     dragable : false,
 140     pinching : false,
 141     mouseX : 0,
 142     mouseY : 0,
 143     cropData : false,
 144     minWidth : 300,
 145     minHeight : 300,
 146     file : false,
 147     exif : {},
 148     baseRotate : 1,
 149     cropType : 'image/jpeg',
 150     buttons : false,
 151     canvasLoaded : false,
 152     isDocument : false,
 153     method : 'POST',
 154     paramName : 'imageUpload',
 155     loadMask : true,
 156     loadingText : 'Loading...',
 157     maskEl : false,
 158
 159     getAutoCreate : function()
 160     {
 161         var cfg = {
 162             tag : 'div',
 163             cls : 'roo-upload-cropbox',
 164             cn : [
 165                 {
 166                     tag : 'input',
 167                     cls : 'roo-upload-cropbox-selector',
 168                     type : 'file'
 169                 },
 170                 {
 171                     tag : 'div',
 172                     cls : 'roo-upload-cropbox-body',
 173                     style : 'cursor:pointer',
 174                     cn : [
 175                         {
 176                             tag : 'div',
 177                             cls : 'roo-upload-cropbox-preview'
 178                         },
 179                         {
 180                             tag : 'div',
 181                             cls : 'roo-upload-cropbox-thumb'
 182                         },
 183                         {
 184                             tag : 'div',
 185                             cls : 'roo-upload-cropbox-empty-notify',
 186                             html : this.emptyText
 187                         },
 188                         {
 189                             tag : 'div',
 190                             cls : 'roo-upload-cropbox-error-notify alert alert-danger',
 191                             html : this.rotateNotify
 192                         }
 193                     ]
 194                 },
 195                 {
 196                     tag : 'div',
 197                     cls : 'roo-upload-cropbox-footer',
 198                     cn : {
 199                         tag : 'div',
 200                         cls : 'btn-group btn-group-justified roo-upload-cropbox-btn-group',
 201                         cn : []
 202                     }
 203                 }
 204             ]
 205         };
 206
 207         return cfg;
 208     },
 209
 210     onRender : function(ct, position)
 211     {
 212         console.log("On Render");
 213         console.log(this);
 214         Roo.dialog.UploadCropbox.superclass.onRender.call(this, ct, position);
 215
 216         if(this.el){
 217             if (this.el.attr('xtype')) {
 218                 this.el.attr('xtypex', this.el.attr('xtype'));
 219                 this.el.dom.removeAttribute('xtype');
 220
 221                 this.initEvents();
 222             }
 223
 224             return;
 225         }
 226
 227
 228
 229         var cfg = Roo.apply({},  this.getAutoCreate());
 230
 231         cfg.id = this.id || Roo.id();
 232
 233         // fill in the extra attributes
 234         if (this.xattr && typeof(this.xattr) =='object') {
 235             for (var i in this.xattr) {
 236                 cfg[i] = this.xattr[i];
 237             }
 238         }
 239
 240         if(this.dataId){
 241             cfg.dataId = this.dataId;
 242         }
 243
 244         if (this.cls) {
 245             cfg.cls = (typeof(cfg.cls) == 'undefined' ? this.cls : cfg.cls) + ' ' + this.cls;
 246         }
 247
 248         if (this.style) { // fixme needs to support more complex style data.
 249             cfg.style = (typeof(cfg.style) == 'undefined' ? this.style : cfg.style) + '; ' + this.style;
 250         }
 251
 252         if(this.name){
 253             cfg.name = this.name;
 254         }
 255
 256         this.el = ct.createChild(cfg, position);
 257
 258         if (this.tooltip) {
 259             this.tooltipEl().attr('tooltip', this.tooltip);
 260         }
 261
 262         if(this.tabIndex !== undefined){
 263             this.el.dom.setAttribute('tabIndex', this.tabIndex);
 264         }
 265
 266         this.initEvents();
 267
 268         if (this.buttons.length) {
 269
 270             Roo.each(this.buttons, function(bb) {
 271
 272                 var btn = this.el.select('.roo-upload-cropbox-footer div.roo-upload-cropbox-btn-group').first().createChild(bb);
 273
 274                 btn.on('click', this.onFooterButtonClick.createDelegate(this, [bb.action], true));
 275
 276             }, this);
 277         }
 278
 279         if(this.loadMask){
 280             this.maskEl = this.el;
 281         }
 282     },
 283
 284     initEvents : function()
 285     {
 286         this.urlAPI = (window.createObjectURL && window) ||
 287                                 (window.URL && URL.revokeObjectURL && URL) ||
 288                                 (window.webkitURL && webkitURL);
 289
 290         this.bodyEl = this.el.select('.roo-upload-cropbox-body', true).first();
 291         this.bodyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 292
 293         this.selectorEl = this.el.select('.roo-upload-cropbox-selector', true).first();
 294         this.selectorEl.hide();
 295
 296         this.previewEl = this.el.select('.roo-upload-cropbox-preview', true).first();
 297         this.previewEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 298
 299         this.thumbEl = this.el.select('.roo-upload-cropbox-thumb', true).first();
 300         this.thumbEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 301         this.thumbEl.hide();
 302
 303         this.notifyEl = this.el.select('.roo-upload-cropbox-empty-notify', true).first();
 304         this.notifyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 305
 306         this.errorEl = this.el.select('.roo-upload-cropbox-error-notify', true).first();
 307         this.errorEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 308         this.errorEl.hide();
 309
 310         this.footerEl = this.el.select('.roo-upload-cropbox-footer', true).first();
 311         this.footerEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 312         this.footerEl.hide();
 313
 314         this.setThumbBoxSize();
 315
 316         this.bind();
 317
 318         this.resize();
 319
 320         this.fireEvent('initial', this);
 321     },
 322
 323     bind : function()
 324     {
 325         var _this = this;
 326
 327         window.addEventListener("resize", function() { _this.resize(); } );
 328
 329         this.bodyEl.on('click', this.beforeSelectFile, this);
 330
 331         if(Roo.isTouch){
 332             this.bodyEl.on('touchstart', this.onTouchStart, this);
 333             this.bodyEl.on('touchmove', this.onTouchMove, this);
 334             this.bodyEl.on('touchend', this.onTouchEnd, this);
 335         }
 336
 337         if(!Roo.isTouch){
 338             this.bodyEl.on('mousedown', this.onMouseDown, this);
 339             this.bodyEl.on('mousemove', this.onMouseMove, this);
 340             var mousewheel = (/Firefox/i.test(navigator.userAgent))? 'DOMMouseScroll' : 'mousewheel';
 341             this.bodyEl.on(mousewheel, this.onMouseWheel, this);
 342             Roo.get(document).on('mouseup', this.onMouseUp, this);
 343         }
 344
 345         this.selectorEl.on('change', this.onFileSelected, this);
 346     },
 347
 348     reset : function()
 349     {
 350         this.scale = 0;
 351         this.baseScale = 1;
 352         this.rotate = 0;
 353         this.baseRotate = 1;
 354         this.dragable = false;
 355         this.pinching = false;
 356         this.mouseX = 0;
 357         this.mouseY = 0;
 358         this.cropData = false;
 359         this.notifyEl.dom.innerHTML = this.emptyText;
 360
 361         this.selectorEl.dom.value = '';
 362
 363     },
 364
 365     resize : function()
 366     {
 367         if(this.fireEvent('resize', this) != false){
 368             this.setThumbBoxPosition();
 369             this.setCanvasPosition();
 370         }
 371     },
 372
 373     onFooterButtonClick : function(e, el, o, type)
 374     {
 375         switch (type) {
 376             case 'rotate-left' :
 377                 this.onRotateLeft(e);
 378                 break;
 379             case 'rotate-right' :
 380                 this.onRotateRight(e);
 381                 break;
 382             case 'picture' :
 383                 this.beforeSelectFile(e);
 384                 break;
 385             case 'trash' :
 386                 this.trash(e);
 387                 break;
 388             case 'crop' :
 389                 this.crop(e);
 390                 break;
 391             case 'download' :
 392                 this.download(e);
 393                 break;
 394             default :
 395                 break;
 396         }
 397
 398         this.fireEvent('footerbuttonclick', this, type);
 399     },
 400
 401     beforeSelectFile : function(e)
 402     {
 403         e.preventDefault();
 404
 405         if(this.fireEvent('beforeselectfile', this) != false){
 406             this.selectorEl.dom.click();
 407         }
 408     },
 409
 410     onFileSelected : function(e)
 411     {
 412         e.preventDefault();
 413
 414         if(typeof(this.selectorEl.dom.files) == 'undefined' || !this.selectorEl.dom.files.length){
 415             return;
 416         }
 417
 418         var file = this.selectorEl.dom.files[0];
 419
 420         if(this.fireEvent('inspect', this, file) != false){
 421             this.prepare(file);
 422         }
 423
 424     },
 425
 426     trash : function(e)
 427     {
 428         this.fireEvent('trash', this);
 429     },
 430
 431     download : function(e)
 432     {
 433         this.fireEvent('download', this);
 434     },
 435
 436     loadCanvas : function(src)
 437     {
 438         if(this.fireEvent('beforeloadcanvas', this, src) != false){
 439
 440             this.reset();
 441
 442             this.imageEl = document.createElement('img');
 443
 444             var _this = this;
 445
 446             this.imageEl.addEventListener("load", function(){ _this.onLoadCanvas(); });
 447
 448             this.imageEl.src = src;
 449         }
 450     },
 451
 452     onLoadCanvas : function()
 453     {
 454         this.imageEl.OriginWidth = this.imageEl.naturalWidth || this.imageEl.width;
 455         this.imageEl.OriginHeight = this.imageEl.naturalHeight || this.imageEl.height;
 456
 457         this.bodyEl.un('click', this.beforeSelectFile, this);
 458
 459         this.notifyEl.hide();
 460         this.thumbEl.show();
 461         this.footerEl.show();
 462
 463         this.baseRotateLevel();
 464
 465         if(this.isDocument){
 466             this.setThumbBoxSize();
 467         }
 468
 469         this.setThumbBoxPosition();
 470
 471         this.baseScaleLevel();
 472
 473         this.draw();
 474
 475         this.resize();
 476
 477         this.canvasLoaded = true;
 478
 479         if(this.loadMask){
 480             this.maskEl.unmask();
 481         }
 482
 483     },
 484
 485     setCanvasPosition : function()
 486     {
 487         if(!this.canvasEl){
 488             return;
 489         }
 490
 491         var pw = Math.ceil((this.bodyEl.getWidth() - this.canvasEl.width) / 2);
 492         var ph = Math.ceil((this.bodyEl.getHeight() - this.canvasEl.height) / 2);
 493
 494         this.previewEl.setLeft(pw);
 495         this.previewEl.setTop(ph);
 496
 497     },
 498
 499     onMouseDown : function(e)
 500     {
 501         e.stopEvent();
 502
 503         this.dragable = true;
 504         this.pinching = false;
 505
 506         if(this.isDocument && (this.canvasEl.width < this.thumbEl.getWidth() || this.canvasEl.height < this.thumbEl.getHeight())){
 507             this.dragable = false;
 508             return;
 509         }
 510
 511         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 512         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 513
 514     },
 515
 516     onMouseMove : function(e)
 517     {
 518         e.stopEvent();
 519
 520         if(!this.canvasLoaded){
 521             return;
 522         }
 523
 524         if (!this.dragable){
 525             return;
 526         }
 527
 528         var minX = Math.ceil(this.thumbEl.getLeft(true));
 529         var minY = Math.ceil(this.thumbEl.getTop(true));
 530
 531         var maxX = Math.ceil(minX + this.thumbEl.getWidth() - this.canvasEl.width);
 532         var maxY = Math.ceil(minY + this.thumbEl.getHeight() - this.canvasEl.height);
 533
 534         var x = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 535         var y = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 536
 537         x = x - this.mouseX;
 538         y = y - this.mouseY;
 539
 540         var bgX = Math.ceil(x + this.previewEl.getLeft(true));
 541         var bgY = Math.ceil(y + this.previewEl.getTop(true));
 542
 543         bgX = (minX < bgX) ? minX : ((maxX > bgX) ? maxX : bgX);
 544         bgY = (minY < bgY) ? minY : ((maxY > bgY) ? maxY : bgY);
 545
 546         this.previewEl.setLeft(bgX);
 547         this.previewEl.setTop(bgY);
 548
 549         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 550         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 551     },
 552
 553     onMouseUp : function(e)
 554     {
 555         e.stopEvent();
 556
 557         this.dragable = false;
 558     },
 559
 560     onMouseWheel : function(e)
 561     {
 562         e.stopEvent();
 563
 564         this.startScale = this.scale;
 565
 566         this.scale = (e.getWheelDelta() == 1) ? (this.scale + 1) : (this.scale - 1);
 567
 568         if(!this.zoomable()){
 569             this.scale = this.startScale;
 570             return;
 571         }
 572
 573         this.draw();
 574
 575         return;
 576     },
 577
 578     zoomable : function()
 579     {
 580         var minScale = this.thumbEl.getWidth() / this.minWidth;
 581
 582         if(this.minWidth < this.minHeight){
 583             minScale = this.thumbEl.getHeight() / this.minHeight;
 584         }
 585
 586         var width = Math.ceil(this.imageEl.OriginWidth * this.getScaleLevel() / minScale);
 587         var height = Math.ceil(this.imageEl.OriginHeight * this.getScaleLevel() / minScale);
 588
 589         if(
 590                 this.isDocument &&
 591                 (this.rotate == 0 || this.rotate == 180) &&
 592                 (
 593                     width > this.imageEl.OriginWidth ||
 594                     height > this.imageEl.OriginHeight ||
 595                     (width < this.minWidth && height < this.minHeight)
 596                 )
 597         ){
 598             return false;
 599         }
 600
 601         if(
 602                 this.isDocument &&
 603                 (this.rotate == 90 || this.rotate == 270) &&
 604                 (
 605                     width > this.imageEl.OriginWidth ||
 606                     height > this.imageEl.OriginHeight ||
 607                     (width < this.minHeight && height < this.minWidth)
 608                 )
 609         ){
 610             return false;
 611         }
 612
 613         if(
 614                 !this.isDocument &&
 615                 (this.rotate == 0 || this.rotate == 180) &&
 616                 (
 617                     width < this.minWidth ||
 618                     width > this.imageEl.OriginWidth ||
 619                     height < this.minHeight ||
 620                     height > this.imageEl.OriginHeight
 621                 )
 622         ){
 623             return false;
 624         }
 625
 626         if(
 627                 !this.isDocument &&
 628                 (this.rotate == 90 || this.rotate == 270) &&
 629                 (
 630                     width < this.minHeight ||
 631                     width > this.imageEl.OriginWidth ||
 632                     height < this.minWidth ||
 633                     height > this.imageEl.OriginHeight
 634                 )
 635         ){
 636             return false;
 637         }
 638
 639         return true;
 640
 641     },
 642
 643     onRotateLeft : function(e)
 644     {
 645         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 646
 647             var minScale = this.thumbEl.getWidth() / this.minWidth;
 648
 649             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 650             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 651
 652             this.startScale = this.scale;
 653
 654             while (this.getScaleLevel() < minScale){
 655
 656                 this.scale = this.scale + 1;
 657
 658                 if(!this.zoomable()){
 659                     break;
 660                 }
 661
 662                 if(
 663                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 664                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 665                 ){
 666                     continue;
 667                 }
 668
 669                 this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 670
 671                 this.draw();
 672
 673                 return;
 674             }
 675
 676             this.scale = this.startScale;
 677
 678             this.onRotateFail();
 679
 680             return false;
 681         }
 682
 683         this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 684
 685         if(this.isDocument){
 686             this.setThumbBoxSize();
 687             this.setThumbBoxPosition();
 688             this.setCanvasPosition();
 689         }
 690
 691         this.draw();
 692
 693         this.fireEvent('rotate', this, 'left');
 694
 695     },
 696
 697     onRotateRight : function(e)
 698     {
 699         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 700
 701             var minScale = this.thumbEl.getWidth() / this.minWidth;
 702
 703             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 704             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 705
 706             this.startScale = this.scale;
 707
 708             while (this.getScaleLevel() < minScale){
 709
 710                 this.scale = this.scale + 1;
 711
 712                 if(!this.zoomable()){
 713                     break;
 714                 }
 715
 716                 if(
 717                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 718                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 719                 ){
 720                     continue;
 721                 }
 722
 723                 this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 724
 725                 this.draw();
 726
 727                 return;
 728             }
 729
 730             this.scale = this.startScale;
 731
 732             this.onRotateFail();
 733
 734             return false;
 735         }
 736
 737         this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 738
 739         if(this.isDocument){
 740             this.setThumbBoxSize();
 741             this.setThumbBoxPosition();
 742             this.setCanvasPosition();
 743         }
 744
 745         this.draw();
 746
 747         this.fireEvent('rotate', this, 'right');
 748     },
 749
 750     onRotateFail : function()
 751     {
 752         this.errorEl.show(true);
 753
 754         var _this = this;
 755
 756         (function() { _this.errorEl.hide(true); }).defer(this.errorTimeout);
 757     },
 758
 759     draw : function()
 760     {
 761         this.previewEl.dom.innerHTML = '';
 762
 763         var canvasEl = document.createElement("canvas");
 764
 765         var contextEl = canvasEl.getContext("2d");
 766
 767         canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 768         canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 769         var center = this.imageEl.OriginWidth / 2;
 770
 771         if(this.imageEl.OriginWidth < this.imageEl.OriginHeight){
 772             canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 773             canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 774             center = this.imageEl.OriginHeight / 2;
 775         }
 776
 777         contextEl.scale(this.getScaleLevel(), this.getScaleLevel());
 778
 779         contextEl.translate(center, center);
 780         contextEl.rotate(this.rotate * Math.PI / 180);
 781
 782         contextEl.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 783
 784         this.canvasEl = document.createElement("canvas");
 785
 786         this.contextEl = this.canvasEl.getContext("2d");
 787
 788         switch (this.rotate) {
 789             case 0 :
 790
 791                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 792                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 793
 794                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 795
 796                 break;
 797             case 90 :
 798
 799                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 800                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 801
 802                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 803                     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);
 804                     break;
 805                 }
 806
 807                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 808
 809                 break;
 810             case 180 :
 811
 812                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 813                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 814
 815                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 816                     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);
 817                     break;
 818                 }
 819
 820                 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);
 821
 822                 break;
 823             case 270 :
 824
 825                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 826                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 827
 828                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 829                     this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 830                     break;
 831                 }
 832
 833                 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);
 834
 835                 break;
 836             default :
 837                 break;
 838         }
 839
 840         this.previewEl.appendChild(this.canvasEl);
 841
 842         this.setCanvasPosition();
 843     },
 844
 845     crop : function()
 846     {
 847         if(!this.canvasLoaded){
 848             return;
 849         }
 850
 851         var imageCanvas = document.createElement("canvas");
 852
 853         var imageContext = imageCanvas.getContext("2d");
 854
 855         imageCanvas.width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 856         imageCanvas.height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 857
 858         var center = imageCanvas.width / 2;
 859
 860         imageContext.translate(center, center);
 861
 862         imageContext.rotate(this.rotate * Math.PI / 180);
 863
 864         imageContext.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 865
 866         var canvas = document.createElement("canvas");
 867
 868         var context = canvas.getContext("2d");
 869
 870         canvas.width = this.minWidth;
 871         canvas.height = this.minHeight;
 872
 873         switch (this.rotate) {
 874             case 0 :
 875
 876                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 877                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 878
 879                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 880                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 881
 882                 var targetWidth = this.minWidth - 2 * x;
 883                 var targetHeight = this.minHeight - 2 * y;
 884
 885                 var scale = 1;
 886
 887                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 888                     scale = targetWidth / width;
 889                 }
 890
 891                 if(x > 0 && y == 0){
 892                     scale = targetHeight / height;
 893                 }
 894
 895                 if(x > 0 && y > 0){
 896                     scale = targetWidth / width;
 897
 898                     if(width < height){
 899                         scale = targetHeight / height;
 900                     }
 901                 }
 902
 903                 context.scale(scale, scale);
 904
 905                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 906                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 907
 908                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 909                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 910
 911                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 912
 913                 break;
 914             case 90 :
 915
 916                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 917                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 918
 919                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 920                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 921
 922                 var targetWidth = this.minWidth - 2 * x;
 923                 var targetHeight = this.minHeight - 2 * y;
 924
 925                 var scale = 1;
 926
 927                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 928                     scale = targetWidth / width;
 929                 }
 930
 931                 if(x > 0 && y == 0){
 932                     scale = targetHeight / height;
 933                 }
 934
 935                 if(x > 0 && y > 0){
 936                     scale = targetWidth / width;
 937
 938                     if(width < height){
 939                         scale = targetHeight / height;
 940                     }
 941                 }
 942
 943                 context.scale(scale, scale);
 944
 945                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 946                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 947
 948                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 949                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 950
 951                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 952
 953                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 954
 955                 break;
 956             case 180 :
 957
 958                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 959                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 960
 961                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 962                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 963
 964                 var targetWidth = this.minWidth - 2 * x;
 965                 var targetHeight = this.minHeight - 2 * y;
 966
 967                 var scale = 1;
 968
 969                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
 970                     scale = targetWidth / width;
 971                 }
 972
 973                 if(x > 0 && y == 0){
 974                     scale = targetHeight / height;
 975                 }
 976
 977                 if(x > 0 && y > 0){
 978                     scale = targetWidth / width;
 979
 980                     if(width < height){
 981                         scale = targetHeight / height;
 982                     }
 983                 }
 984
 985                 context.scale(scale, scale);
 986
 987                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
 988                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
 989
 990                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 991                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 992
 993                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
 994                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
 995
 996                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 997
 998                 break;
 999             case 270 :
1000
1001                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
1002                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
1003
1004                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1005                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1006
1007                 var targetWidth = this.minWidth - 2 * x;
1008                 var targetHeight = this.minHeight - 2 * y;
1009
1010                 var scale = 1;
1011
1012                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1013                     scale = targetWidth / width;
1014                 }
1015
1016                 if(x > 0 && y == 0){
1017                     scale = targetHeight / height;
1018                 }
1019
1020                 if(x > 0 && y > 0){
1021                     scale = targetWidth / width;
1022
1023                     if(width < height){
1024                         scale = targetHeight / height;
1025                     }
1026                 }
1027
1028                 context.scale(scale, scale);
1029
1030                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1031                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1032
1033                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1034                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1035
1036                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1037
1038                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1039
1040                 break;
1041             default :
1042                 break;
1043         }
1044
1045         this.cropData = canvas.toDataURL(this.cropType);
1046
1047         if(this.fireEvent('crop', this, this.cropData) !== false){
1048             this.process(this.file, this.cropData);
1049         }
1050
1051         return;
1052
1053     },
1054
1055     setThumbBoxSize : function()
1056     {
1057         var width, height;
1058
1059         if(this.isDocument && typeof(this.imageEl) != 'undefined'){
1060             width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.max(this.minWidth, this.minHeight) : Math.min(this.minWidth, this.minHeight);
1061             height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.min(this.minWidth, this.minHeight) : Math.max(this.minWidth, this.minHeight);
1062
1063             this.minWidth = width;
1064             this.minHeight = height;
1065
1066             if(this.rotate == 90 || this.rotate == 270){
1067                 this.minWidth = height;
1068                 this.minHeight = width;
1069             }
1070         }
1071
1072         height = 300;
1073         width = Math.ceil(this.minWidth * height / this.minHeight);
1074
1075         if(this.minWidth > this.minHeight){
1076             width = 300;
1077             height = Math.ceil(this.minHeight * width / this.minWidth);
1078         }
1079
1080         this.thumbEl.setStyle({
1081             width : width + 'px',
1082             height : height + 'px'
1083         });
1084
1085         return;
1086
1087     },
1088
1089     setThumbBoxPosition : function()
1090     {
1091         var x = Math.ceil((this.bodyEl.getWidth() - this.thumbEl.getWidth()) / 2 );
1092         var y = Math.ceil((this.bodyEl.getHeight() - this.thumbEl.getHeight()) / 2);
1093
1094         this.thumbEl.setLeft(x);
1095         this.thumbEl.setTop(y);
1096
1097     },
1098
1099     baseRotateLevel : function()
1100     {
1101         this.baseRotate = 1;
1102
1103         if(
1104                 typeof(this.exif) != 'undefined' &&
1105                 typeof(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != 'undefined' &&
1106                 [1, 3, 6, 8].indexOf(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != -1
1107         ){
1108             this.baseRotate = this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']];
1109         }
1110
1111         this.rotate = Roo.dialog.UploadCropbox['Orientation'][this.baseRotate];
1112
1113     },
1114
1115     baseScaleLevel : function()
1116     {
1117         var width, height;
1118
1119         if(this.isDocument){
1120
1121             if(this.baseRotate == 6 || this.baseRotate == 8){
1122
1123                 height = this.thumbEl.getHeight();
1124                 this.baseScale = height / this.imageEl.OriginWidth;
1125
1126                 if(this.imageEl.OriginHeight * this.baseScale > this.thumbEl.getWidth()){
1127                     width = this.thumbEl.getWidth();
1128                     this.baseScale = width / this.imageEl.OriginHeight;
1129                 }
1130
1131                 return;
1132             }
1133
1134             height = this.thumbEl.getHeight();
1135             this.baseScale = height / this.imageEl.OriginHeight;
1136
1137             if(this.imageEl.OriginWidth * this.baseScale > this.thumbEl.getWidth()){
1138                 width = this.thumbEl.getWidth();
1139                 this.baseScale = width / this.imageEl.OriginWidth;
1140             }
1141
1142             return;
1143         }
1144
1145         if(this.baseRotate == 6 || this.baseRotate == 8){
1146
1147             width = this.thumbEl.getHeight();
1148             this.baseScale = width / this.imageEl.OriginHeight;
1149
1150             if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getWidth()){
1151                 height = this.thumbEl.getWidth();
1152                 this.baseScale = height / this.imageEl.OriginHeight;
1153             }
1154
1155             if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1156                 height = this.thumbEl.getWidth();
1157                 this.baseScale = height / this.imageEl.OriginHeight;
1158
1159                 if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getHeight()){
1160                     width = this.thumbEl.getHeight();
1161                     this.baseScale = width / this.imageEl.OriginWidth;
1162                 }
1163             }
1164
1165             return;
1166         }
1167
1168         width = this.thumbEl.getWidth();
1169         this.baseScale = width / this.imageEl.OriginWidth;
1170
1171         if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getHeight()){
1172             height = this.thumbEl.getHeight();
1173             this.baseScale = height / this.imageEl.OriginHeight;
1174         }
1175
1176         if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1177
1178             height = this.thumbEl.getHeight();
1179             this.baseScale = height / this.imageEl.OriginHeight;
1180
1181             if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getWidth()){
1182                 width = this.thumbEl.getWidth();
1183                 this.baseScale = width / this.imageEl.OriginWidth;
1184             }
1185
1186         }
1187
1188         return;
1189     },
1190
1191     getScaleLevel : function()
1192     {
1193         return this.baseScale * Math.pow(1.1, this.scale);
1194     },
1195
1196     onTouchStart : function(e)
1197     {
1198         if(!this.canvasLoaded){
1199             this.beforeSelectFile(e);
1200             return;
1201         }
1202
1203         var touches = e.browserEvent.touches;
1204
1205         if(!touches){
1206             return;
1207         }
1208
1209         if(touches.length == 1){
1210             this.onMouseDown(e);
1211             return;
1212         }
1213
1214         if(touches.length != 2){
1215             return;
1216         }
1217
1218         var coords = [];
1219
1220         for(var i = 0, finger; finger = touches[i]; i++){
1221             coords.push(finger.pageX, finger.pageY);
1222         }
1223
1224         var x = Math.pow(coords[0] - coords[2], 2);
1225         var y = Math.pow(coords[1] - coords[3], 2);
1226
1227         this.startDistance = Math.sqrt(x + y);
1228
1229         this.startScale = this.scale;
1230
1231         this.pinching = true;
1232         this.dragable = false;
1233
1234     },
1235
1236     onTouchMove : function(e)
1237     {
1238         if(!this.pinching && !this.dragable){
1239             return;
1240         }
1241
1242         var touches = e.browserEvent.touches;
1243
1244         if(!touches){
1245             return;
1246         }
1247
1248         if(this.dragable){
1249             this.onMouseMove(e);
1250             return;
1251         }
1252
1253         var coords = [];
1254
1255         for(var i = 0, finger; finger = touches[i]; i++){
1256             coords.push(finger.pageX, finger.pageY);
1257         }
1258
1259         var x = Math.pow(coords[0] - coords[2], 2);
1260         var y = Math.pow(coords[1] - coords[3], 2);
1261
1262         this.endDistance = Math.sqrt(x + y);
1263
1264         this.scale = this.startScale + Math.floor(Math.log(this.endDistance / this.startDistance) / Math.log(1.1));
1265
1266         if(!this.zoomable()){
1267             this.scale = this.startScale;
1268             return;
1269         }
1270
1271         this.draw();
1272
1273     },
1274
1275     onTouchEnd : function(e)
1276     {
1277         this.pinching = false;
1278         this.dragable = false;
1279
1280     },
1281
1282     process : function(file, crop)
1283     {
1284         if(this.loadMask){
1285             this.maskEl.mask(this.loadingText);
1286         }
1287
1288         this.xhr = new XMLHttpRequest();
1289
1290         file.xhr = this.xhr;
1291
1292         this.xhr.open(this.method, this.url, true);
1293
1294         var headers = {
1295             "Accept": "application/json",
1296             "Cache-Control": "no-cache",
1297             "X-Requested-With": "XMLHttpRequest"
1298         };
1299
1300         for (var headerName in headers) {
1301             var headerValue = headers[headerName];
1302             if (headerValue) {
1303                 this.xhr.setRequestHeader(headerName, headerValue);
1304             }
1305         }
1306
1307         var _this = this;
1308
1309         this.xhr.onload = function()
1310         {
1311             _this.xhrOnLoad(_this.xhr);
1312         }
1313
1314         this.xhr.onerror = function()
1315         {
1316             _this.xhrOnError(_this.xhr);
1317         }
1318
1319         var formData = new FormData();
1320
1321         formData.append('returnHTML', 'NO');
1322
1323         if(crop){
1324             formData.append('crop', crop);
1325         }
1326
1327         if(typeof(file) != 'undefined' && (typeof(file.id) == 'undefined' || file.id * 1 < 1)){
1328             formData.append(this.paramName, file, file.name);
1329         }
1330
1331         if(typeof(file.filename) != 'undefined'){
1332             formData.append('filename', file.filename);
1333         }
1334
1335         if(typeof(file.mimetype) != 'undefined'){
1336             formData.append('mimetype', file.mimetype);
1337         }
1338
1339         if(this.fireEvent('arrange', this, formData) != false){
1340             this.xhr.send(formData);
1341         };
1342     },
1343
1344     xhrOnLoad : function(xhr)
1345     {
1346         if(this.loadMask){
1347             this.maskEl.unmask();
1348         }
1349
1350         if (xhr.readyState !== 4) {
1351             this.fireEvent('exception', this, xhr);
1352             return;
1353         }
1354
1355         var response = Roo.decode(xhr.responseText);
1356
1357         if(!response.success){
1358             this.fireEvent('exception', this, xhr);
1359             return;
1360         }
1361
1362         var response = Roo.decode(xhr.responseText);
1363
1364         this.fireEvent('upload', this, response);
1365
1366     },
1367
1368     xhrOnError : function()
1369     {
1370         if(this.loadMask){
1371             this.maskEl.unmask();
1372         }
1373
1374         Roo.log('xhr on error');
1375
1376         var response = Roo.decode(xhr.responseText);
1377
1378         Roo.log(response);
1379
1380     },
1381
1382     prepare : function(file)
1383     {
1384         if(this.loadMask){
1385             this.maskEl.mask(this.loadingText);
1386         }
1387
1388         this.file = false;
1389         this.exif = {};
1390
1391         if(typeof(file) === 'string'){
1392             this.loadCanvas(file);
1393             return;
1394         }
1395
1396         if(!file || !this.urlAPI){
1397             return;
1398         }
1399
1400         this.file = file;
1401         this.cropType = file.type;
1402
1403         var _this = this;
1404
1405         if(this.fireEvent('prepare', this, this.file) != false){
1406
1407             var reader = new FileReader();
1408
1409             reader.onload = function (e) {
1410                 if (e.target.error) {
1411                     Roo.log(e.target.error);
1412                     return;
1413                 }
1414
1415                 var buffer = e.target.result,
1416                     dataView = new DataView(buffer),
1417                     offset = 2,
1418                     maxOffset = dataView.byteLength - 4,
1419                     markerBytes,
1420                     markerLength;
1421
1422                 if (dataView.getUint16(0) === 0xffd8) {
1423                     while (offset < maxOffset) {
1424                         markerBytes = dataView.getUint16(offset);
1425
1426                         if ((markerBytes >= 0xffe0 && markerBytes <= 0xffef) || markerBytes === 0xfffe) {
1427                             markerLength = dataView.getUint16(offset + 2) + 2;
1428                             if (offset + markerLength > dataView.byteLength) {
1429                                 Roo.log('Invalid meta data: Invalid segment size.');
1430                                 break;
1431                             }
1432
1433                             if(markerBytes == 0xffe1){
1434                                 _this.parseExifData(
1435                                     dataView,
1436                                     offset,
1437                                     markerLength
1438                                 );
1439                             }
1440
1441                             offset += markerLength;
1442
1443                             continue;
1444                         }
1445
1446                         break;
1447                     }
1448
1449                 }
1450
1451                 var url = _this.urlAPI.createObjectURL(_this.file);
1452
1453                 _this.loadCanvas(url);
1454
1455                 return;
1456             }
1457
1458             reader.readAsArrayBuffer(this.file);
1459
1460         }
1461
1462     },
1463
1464     parseExifData : function(dataView, offset, length)
1465     {
1466         var tiffOffset = offset + 10,
1467             littleEndian,
1468             dirOffset;
1469
1470         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1471             // No Exif data, might be XMP data instead
1472             return;
1473         }
1474
1475         // Check for the ASCII code for "Exif" (0x45786966):
1476         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1477             // No Exif data, might be XMP data instead
1478             return;
1479         }
1480         if (tiffOffset + 8 > dataView.byteLength) {
1481             Roo.log('Invalid Exif data: Invalid segment size.');
1482             return;
1483         }
1484         // Check for the two null bytes:
1485         if (dataView.getUint16(offset + 8) !== 0x0000) {
1486             Roo.log('Invalid Exif data: Missing byte alignment offset.');
1487             return;
1488         }
1489         // Check the byte alignment:
1490         switch (dataView.getUint16(tiffOffset)) {
1491         case 0x4949:
1492             littleEndian = true;
1493             break;
1494         case 0x4D4D:
1495             littleEndian = false;
1496             break;
1497         default:
1498             Roo.log('Invalid Exif data: Invalid byte alignment marker.');
1499             return;
1500         }
1501         // Check for the TIFF tag marker (0x002A):
1502         if (dataView.getUint16(tiffOffset + 2, littleEndian) !== 0x002A) {
1503             Roo.log('Invalid Exif data: Missing TIFF marker.');
1504             return;
1505         }
1506         // Retrieve the directory offset bytes, usually 0x00000008 or 8 decimal:
1507         dirOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
1508
1509         this.parseExifTags(
1510             dataView,
1511             tiffOffset,
1512             tiffOffset + dirOffset,
1513             littleEndian
1514         );
1515     },
1516
1517     parseExifTags : function(dataView, tiffOffset, dirOffset, littleEndian)
1518     {
1519         var tagsNumber,
1520             dirEndOffset,
1521             i;
1522         if (dirOffset + 6 > dataView.byteLength) {
1523             Roo.log('Invalid Exif data: Invalid directory offset.');
1524             return;
1525         }
1526         tagsNumber = dataView.getUint16(dirOffset, littleEndian);
1527         dirEndOffset = dirOffset + 2 + 12 * tagsNumber;
1528         if (dirEndOffset + 4 > dataView.byteLength) {
1529             Roo.log('Invalid Exif data: Invalid directory size.');
1530             return;
1531         }
1532         for (i = 0; i < tagsNumber; i += 1) {
1533             this.parseExifTag(
1534                 dataView,
1535                 tiffOffset,
1536                 dirOffset + 2 + 12 * i, // tag offset
1537                 littleEndian
1538             );
1539         }
1540         // Return the offset to the next directory:
1541         return dataView.getUint32(dirEndOffset, littleEndian);
1542     },
1543
1544     parseExifTag : function (dataView, tiffOffset, offset, littleEndian)
1545     {
1546         var tag = dataView.getUint16(offset, littleEndian);
1547
1548         this.exif[tag] = this.getExifValue(
1549             dataView,
1550             tiffOffset,
1551             offset,
1552             dataView.getUint16(offset + 2, littleEndian), // tag type
1553             dataView.getUint32(offset + 4, littleEndian), // tag length
1554             littleEndian
1555         );
1556     },
1557
1558     getExifValue : function (dataView, tiffOffset, offset, type, length, littleEndian)
1559     {
1560         var tagType = Roo.dialog.UploadCropbox.exifTagTypes[type],
1561             tagSize,
1562             dataOffset,
1563             values,
1564             i,
1565             str,
1566             c;
1567
1568         if (!tagType) {
1569             Roo.log('Invalid Exif data: Invalid tag type.');
1570             return;
1571         }
1572
1573         tagSize = tagType.size * length;
1574         // Determine if the value is contained in the dataOffset bytes,
1575         // or if the value at the dataOffset is a pointer to the actual data:
1576         dataOffset = tagSize > 4 ?
1577                 tiffOffset + dataView.getUint32(offset + 8, littleEndian) : (offset + 8);
1578         if (dataOffset + tagSize > dataView.byteLength) {
1579             Roo.log('Invalid Exif data: Invalid data offset.');
1580             return;
1581         }
1582         if (length === 1) {
1583             return tagType.getValue(dataView, dataOffset, littleEndian);
1584         }
1585         values = [];
1586         for (i = 0; i < length; i += 1) {
1587             values[i] = tagType.getValue(dataView, dataOffset + i * tagType.size, littleEndian);
1588         }
1589
1590         if (tagType.ascii) {
1591             str = '';
1592             // Concatenate the chars:
1593             for (i = 0; i < values.length; i += 1) {
1594                 c = values[i];
1595                 // Ignore the terminating NULL byte(s):
1596                 if (c === '\u0000') {
1597                     break;
1598                 }
1599                 str += c;
1600             }
1601             return str;
1602         }
1603         return values;
1604     }
1605
1606 });
1607
1608 Roo.apply(Roo.dialog.UploadCropbox, {
1609     tags : {
1610         'Orientation': 0x0112
1611     },
1612
1613     Orientation: {
1614             1: 0, //'top-left',
1615 //            2: 'top-right',
1616             3: 180, //'bottom-right',
1617 //            4: 'bottom-left',
1618 //            5: 'left-top',
1619             6: 90, //'right-top',
1620 //            7: 'right-bottom',
1621             8: 270 //'left-bottom'
1622     },
1623
1624     exifTagTypes : {
1625         // byte, 8-bit unsigned int:
1626         1: {
1627             getValue: function (dataView, dataOffset) {
1628                 return dataView.getUint8(dataOffset);
1629             },
1630             size: 1
1631         },
1632         // ascii, 8-bit byte:
1633         2: {
1634             getValue: function (dataView, dataOffset) {
1635                 return String.fromCharCode(dataView.getUint8(dataOffset));
1636             },
1637             size: 1,
1638             ascii: true
1639         },
1640         // short, 16 bit int:
1641         3: {
1642             getValue: function (dataView, dataOffset, littleEndian) {
1643                 return dataView.getUint16(dataOffset, littleEndian);
1644             },
1645             size: 2
1646         },
1647         // long, 32 bit int:
1648         4: {
1649             getValue: function (dataView, dataOffset, littleEndian) {
1650                 return dataView.getUint32(dataOffset, littleEndian);
1651             },
1652             size: 4
1653         },
1654         // rational = two long values, first is numerator, second is denominator:
1655         5: {
1656             getValue: function (dataView, dataOffset, littleEndian) {
1657                 return dataView.getUint32(dataOffset, littleEndian) /
1658                     dataView.getUint32(dataOffset + 4, littleEndian);
1659             },
1660             size: 8
1661         },
1662         // slong, 32 bit signed int:
1663         9: {
1664             getValue: function (dataView, dataOffset, littleEndian) {
1665                 return dataView.getInt32(dataOffset, littleEndian);
1666             },
1667             size: 4
1668         },
1669         // srational, two slongs, first is numerator, second is denominator:
1670         10: {
1671             getValue: function (dataView, dataOffset, littleEndian) {
1672                 return dataView.getInt32(dataOffset, littleEndian) /
1673                     dataView.getInt32(dataOffset + 4, littleEndian);
1674             },
1675             size: 8
1676         }
1677     },
1678
1679     footer : {
1680         STANDARD : [
1681             {
1682                 tag : 'div',
1683                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1684                 action : 'rotate-left',
1685                 cn : [
1686                     {
1687                         tag : 'button',
1688                         cls : 'btn btn-default',
1689                         html : '<i class="fa fa-undo"></i>'
1690                     }
1691                 ]
1692             },
1693             {
1694                 tag : 'div',
1695                 cls : 'btn-group roo-upload-cropbox-picture',
1696                 action : 'picture',
1697                 cn : [
1698                     {
1699                         tag : 'button',
1700                         cls : 'btn btn-default',
1701                         html : '<i class="fa fa-picture-o"></i>'
1702                     }
1703                 ]
1704             },
1705             {
1706                 tag : 'div',
1707                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1708                 action : 'rotate-right',
1709                 cn : [
1710                     {
1711                         tag : 'button',
1712                         cls : 'btn btn-default',
1713                         html : '<i class="fa fa-repeat"></i>'
1714                     }
1715                 ]
1716             }
1717         ],
1718         DOCUMENT : [
1719             {
1720                 tag : 'div',
1721                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1722                 action : 'rotate-left',
1723                 cn : [
1724                     {
1725                         tag : 'button',
1726                         cls : 'btn btn-default',
1727                         html : '<i class="fa fa-undo"></i>'
1728                     }
1729                 ]
1730             },
1731             {
1732                 tag : 'div',
1733                 cls : 'btn-group roo-upload-cropbox-download',
1734                 action : 'download',
1735                 cn : [
1736                     {
1737                         tag : 'button',
1738                         cls : 'btn btn-default',
1739                         html : '<i class="fa fa-download"></i>'
1740                     }
1741                 ]
1742             },
1743             {
1744                 tag : 'div',
1745                 cls : 'btn-group roo-upload-cropbox-crop',
1746                 action : 'crop',
1747                 cn : [
1748                     {
1749                         tag : 'button',
1750                         cls : 'btn btn-default',
1751                         html : '<i class="fa fa-crop"></i>'
1752                     }
1753                 ]
1754             },
1755             {
1756                 tag : 'div',
1757                 cls : 'btn-group roo-upload-cropbox-trash',
1758                 action : 'trash',
1759                 cn : [
1760                     {
1761                         tag : 'button',
1762                         cls : 'btn btn-default',
1763                         html : '<i class="fa fa-trash"></i>'
1764                     }
1765                 ]
1766             },
1767             {
1768                 tag : 'div',
1769                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1770                 action : 'rotate-right',
1771                 cn : [
1772                     {
1773                         tag : 'button',
1774                         cls : 'btn btn-default',
1775                         html : '<i class="fa fa-repeat"></i>'
1776                     }
1777                 ]
1778             }
1779         ],
1780         ROTATOR : [
1781             {
1782                 tag : 'div',
1783                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1784                 action : 'rotate-left',
1785                 cn : [
1786                     {
1787                         tag : 'button',
1788                         cls : 'btn btn-default',
1789                         html : '<i class="fa fa-undo"></i>'
1790                     }
1791                 ]
1792             },
1793             {
1794                 tag : 'div',
1795                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1796                 action : 'rotate-right',
1797                 cn : [
1798                     {
1799                         tag : 'button',
1800                         cls : 'btn btn-default',
1801                         html : '<i class="fa fa-repeat"></i>'
1802                     }
1803                 ]
1804             }
1805         ]
1806     }
1807 });