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