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 {Number} outputMaxWidth default 1200
  16  * @cfg {Number} windowSize default 300
  17  * @cfg {Array} buttons default ['rotateLeft', 'pictureBtn', 'rotateRight']
  18  * @cfg {Boolean} isDocument (true|false) default false
  19  * @cfg {String} url action url
  20  * @cfg {String} paramName default 'imageUpload'
  21  * @cfg {String} method default POST
  22  * @cfg {Boolean} loadMask (true|false) default true
  23  * @cfg {Boolean} loadingText default 'Loading...'
  24  *
  25  * @constructor
  26  * Create a new UploadCropbox
  27  * @param {Object} config The config object
  28  */
  29
  30  Roo.dialog.UploadCropbox = function(config){
  31     Roo.dialog.UploadCropbox.superclass.constructor.call(this, config);
  32
  33     this.addEvents({
  34         /**
  35          * @event beforeselectfile
  36          * Fire before select file
  37          * @param {Roo.dialog.UploadCropbox} this
  38          */
  39         "beforeselectfile" : true,
  40         /**
  41          * @event initial
  42          * Fire after initEvent
  43          * @param {Roo.dialog.UploadCropbox} this
  44          */
  45         "initial" : true,
  46         /**
  47          * @event crop
  48          * Fire after initEvent
  49          * @param {Roo.dialog.UploadCropbox} this
  50          * @param {String} data
  51          */
  52         "crop" : true,
  53         /**
  54          * @event prepare
  55          * Fire when preparing the file data
  56          * @param {Roo.dialog.UploadCropbox} this
  57          * @param {Object} file
  58          */
  59         "prepare" : true,
  60         /**
  61          * @event exception
  62          * Fire when get exception
  63          * @param {Roo.dialog.UploadCropbox} this
  64          * @param {XMLHttpRequest} xhr
  65          */
  66         "exception" : true,
  67         /**
  68          * @event beforeloadcanvas
  69          * Fire before load the canvas
  70          * @param {Roo.dialog.UploadCropbox} this
  71          * @param {String} src
  72          */
  73         "beforeloadcanvas" : true,
  74         /**
  75          * @event trash
  76          * Fire when trash image
  77          * @param {Roo.dialog.UploadCropbox} this
  78          */
  79         "trash" : true,
  80         /**
  81          * @event download
  82          * Fire when download the image
  83          * @param {Roo.dialog.UploadCropbox} this
  84          */
  85         "download" : true,
  86         /**
  87          * @event footerbuttonclick
  88          * Fire when footerbuttonclick
  89          * @param {Roo.dialog.UploadCropbox} this
  90          * @param {String} type
  91          */
  92         "footerbuttonclick" : true,
  93         /**
  94          * @event resize
  95          * Fire when resize
  96          * @param {Roo.dialog.UploadCropbox} this
  97          */
  98         "resize" : true,
  99         /**
 100          * @event rotate
 101          * Fire when rotate the image
 102          * @param {Roo.dialog.UploadCropbox} this
 103          * @param {String} pos
 104          */
 105         "rotate" : true,
 106         /**
 107          * @event inspect
 108          * Fire when inspect the file
 109          * @param {Roo.dialog.UploadCropbox} this
 110          * @param {Object} file
 111          */
 112         "inspect" : true,
 113         /**
 114          * @event upload
 115          * Fire when xhr upload the file
 116          * @param {Roo.dialog.UploadCropbox} this
 117          * @param {Object} data
 118          */
 119         "upload" : true,
 120         /**
 121          * @event arrange
 122          * Fire when arrange the file data
 123          * @param {Roo.dialog.UploadCropbox} this
 124          * @param {Object} formData
 125          */
 126         "arrange" : true,
 127         /**
 128          * @event loadcanvas
 129          * Fire after load the canvas
 130          * @param {Roo.dialog.UploadCropbox}
 131          * @param {Object} imgEl
 132          */
 133         "loadcanvas" : true
 134     });
 135
 136     this.buttons = this.buttons || Roo.dialog.UploadCropbox.footer.STANDARD;
 137 };
 138
 139 Roo.extend(Roo.dialog.UploadCropbox, Roo.Component,  {
 140
 141     emptyText : 'Click to upload image',
 142     rotateNotify : 'Image is too small to rotate',
 143     errorTimeout : 3000,
 144     scale : 0,
 145     baseScale : 1,
 146     rotate : 0,
 147     dragable : false,
 148     pinching : false,
 149     mouseX : 0,
 150     mouseY : 0,
 151     cropData : false,
 152     minWidth : 300,
 153     minHeight : 300,
 154     outputMaxWidth : 1200,
 155     windowSize : 300,
 156     file : false,
 157     exif : {},
 158     baseRotate : 1,
 159     cropType : 'image/jpeg',
 160     buttons : false,
 161     canvasLoaded : false,
 162     isDocument : false,
 163     method : 'POST',
 164     paramName : 'imageUpload',
 165     loadMask : true,
 166     loadingText : 'Loading...',
 167     maskEl : false,
 168
 169     getAutoCreate : function()
 170     {
 171         var cfg = {
 172             tag : 'div',
 173             cls : 'roo-upload-cropbox',
 174             cn : [
 175                 {
 176                     tag : 'input',
 177                     cls : 'roo-upload-cropbox-selector',
 178                     type : 'file'
 179                 },
 180                 {
 181                     tag : 'div',
 182                     cls : 'roo-upload-cropbox-body',
 183                     style : 'cursor:pointer',
 184                     cn : [
 185                         {
 186                             tag : 'div',
 187                             cls : 'roo-upload-cropbox-preview'
 188                         },
 189                         {
 190                             tag : 'div',
 191                             cls : 'roo-upload-cropbox-thumb'
 192                         },
 193                         {
 194                             tag : 'div',
 195                             cls : 'roo-upload-cropbox-empty-notify',
 196                             html : this.emptyText
 197                         },
 198                         {
 199                             tag : 'div',
 200                             cls : 'roo-upload-cropbox-error-notify alert alert-danger',
 201                             html : this.rotateNotify
 202                         }
 203                     ]
 204                 },
 205                 {
 206                     tag : 'div',
 207                     cls : 'roo-upload-cropbox-footer',
 208                     cn : {
 209                         tag : 'div',
 210                         cls : 'btn-group btn-group-justified roo-upload-cropbox-btn-group',
 211                         cn : []
 212                     }
 213                 }
 214             ]
 215         };
 216
 217         return cfg;
 218     },
 219
 220     onRender : function(ct, position)
 221     {
 222         Roo.dialog.UploadCropbox.superclass.onRender.call(this, ct, position);
 223
 224         if(this.el){
 225             if (this.el.attr('xtype')) {
 226                 this.el.attr('xtypex', this.el.attr('xtype'));
 227                 this.el.dom.removeAttribute('xtype');
 228
 229                 this.initEvents();
 230             }
 231         }
 232         else {
 233             var cfg = Roo.apply({},  this.getAutoCreate());
 234
 235             cfg.id = this.id || Roo.id();
 236
 237             if (this.cls) {
 238                 cfg.cls = (typeof(cfg.cls) == 'undefined' ? this.cls : cfg.cls) + ' ' + this.cls;
 239             }
 240
 241             if (this.style) { // fixme needs to support more complex style data.
 242                 cfg.style = (typeof(cfg.style) == 'undefined' ? this.style : cfg.style) + '; ' + this.style;
 243             }
 244
 245             this.el = ct.createChild(cfg, position);
 246
 247             this.initEvents();
 248         }
 249
 250         if (this.buttons.length) {
 251
 252             Roo.each(this.buttons, function(bb) {
 253
 254                 var btn = this.el.select('.roo-upload-cropbox-footer div.roo-upload-cropbox-btn-group').first().createChild(bb);
 255
 256                 btn.on('click', this.onFooterButtonClick.createDelegate(this, [bb.action], true));
 257
 258             }, this);
 259         }
 260
 261         if(this.loadMask){
 262             this.maskEl = this.el;
 263         }
 264     },
 265
 266     initEvents : function()
 267     {
 268         this.urlAPI = (window.createObjectURL && window) ||
 269                                 (window.URL && URL.revokeObjectURL && URL) ||
 270                                 (window.webkitURL && webkitURL);
 271
 272         this.bodyEl = this.el.select('.roo-upload-cropbox-body', true).first();
 273         this.bodyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 274
 275         this.selectorEl = this.el.select('.roo-upload-cropbox-selector', true).first();
 276         this.selectorEl.hide();
 277
 278         this.previewEl = this.el.select('.roo-upload-cropbox-preview', true).first();
 279         this.previewEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 280
 281         this.thumbEl = this.el.select('.roo-upload-cropbox-thumb', true).first();
 282         this.thumbEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 283         this.thumbEl.hide();
 284
 285         this.notifyEl = this.el.select('.roo-upload-cropbox-empty-notify', true).first();
 286         this.notifyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 287
 288         this.errorEl = this.el.select('.roo-upload-cropbox-error-notify', true).first();
 289         this.errorEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 290         this.errorEl.hide();
 291
 292         this.footerEl = this.el.select('.roo-upload-cropbox-footer', true).first();
 293         this.footerEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 294         this.footerEl.hide();
 295
 296         this.setThumbBoxSize();
 297
 298         this.bind();
 299
 300         this.resize();
 301
 302         this.fireEvent('initial', this);
 303     },
 304
 305     bind : function()
 306     {
 307         var _this = this;
 308
 309         window.addEventListener("resize", function() { _this.resize(); } );
 310
 311         this.bodyEl.on('click', this.beforeSelectFile, this);
 312
 313         if(Roo.isTouch){
 314             this.bodyEl.on('touchstart', this.onTouchStart, this);
 315             this.bodyEl.on('touchmove', this.onTouchMove, this);
 316             this.bodyEl.on('touchend', this.onTouchEnd, this);
 317         }
 318
 319         if(!Roo.isTouch){
 320             this.bodyEl.on('mousedown', this.onMouseDown, this);
 321             this.bodyEl.on('mousemove', this.onMouseMove, this);
 322             var mousewheel = (/Firefox/i.test(navigator.userAgent))? 'DOMMouseScroll' : 'mousewheel';
 323             this.bodyEl.on(mousewheel, this.onMouseWheel, this);
 324             Roo.get(document).on('mouseup', this.onMouseUp, this);
 325         }
 326
 327         this.selectorEl.on('change', this.onFileSelected, this);
 328     },
 329
 330     reset : function()
 331     {
 332         this.scale = 0;
 333         this.baseScale = 1;
 334         this.rotate = 0;
 335         this.baseRotate = 1;
 336         this.dragable = false;
 337         this.pinching = false;
 338         this.mouseX = 0;
 339         this.mouseY = 0;
 340         this.cropData = false;
 341         this.notifyEl.dom.innerHTML = this.emptyText;
 342
 343         // this.selectorEl.dom.value = '';
 344
 345     },
 346
 347     resize : function()
 348     {
 349         if(this.fireEvent('resize', this) != false){
 350             this.setThumbBoxPosition();
 351             this.setCanvasPosition();
 352         }
 353     },
 354
 355     onFooterButtonClick : function(e, el, o, type)
 356     {
 357         switch (type) {
 358             case 'rotate-left' :
 359                 this.onRotateLeft(e);
 360                 break;
 361             case 'rotate-right' :
 362                 this.onRotateRight(e);
 363                 break;
 364             case 'picture' :
 365                 this.beforeSelectFile(e);
 366                 break;
 367             case 'trash' :
 368                 this.trash(e);
 369                 break;
 370             case 'crop' :
 371                 this.crop(e);
 372                 break;
 373             case 'download' :
 374                 this.download(e);
 375                 break;
 376             case 'center' :
 377                 this.center(e);
 378                 break;
 379             default :
 380                 break;
 381         }
 382
 383         this.fireEvent('footerbuttonclick', this, type);
 384     },
 385
 386     beforeSelectFile : function(e)
 387     {
 388         e.preventDefault();
 389
 390         if(this.fireEvent('beforeselectfile', this) != false){
 391             this.selectorEl.dom.click();
 392         }
 393     },
 394
 395     onFileSelected : function(e)
 396     {
 397         e.preventDefault();
 398
 399         if(typeof(this.selectorEl.dom.files) == 'undefined' || !this.selectorEl.dom.files.length){
 400             return;
 401         }
 402
 403         var file = this.selectorEl.dom.files[0];
 404
 405         if(this.fireEvent('inspect', this, file) != false){
 406             this.prepare(file);
 407         }
 408
 409     },
 410
 411     trash : function(e)
 412     {
 413         this.fireEvent('trash', this);
 414     },
 415
 416     download : function(e)
 417     {
 418         this.fireEvent('download', this);
 419     },
 420
 421     center : function(e)
 422     {
 423         this.setCanvasPosition();
 424     },
 425
 426     loadCanvas : function(src)
 427     {
 428         if(this.fireEvent('beforeloadcanvas', this, src) != false){
 429
 430             this.reset();
 431
 432             this.imageEl = document.createElement('img');
 433
 434             var _this = this;
 435
 436             this.imageEl.addEventListener("load", function(){ _this.onLoadCanvas(); });
 437
 438             this.imageEl.src = src;
 439         }
 440     },
 441
 442     onLoadCanvas : function()
 443     {
 444         this.imageEl.OriginWidth = this.imageEl.naturalWidth || this.imageEl.width;
 445         this.imageEl.OriginHeight = this.imageEl.naturalHeight || this.imageEl.height;
 446
 447         if(this.fireEvent('loadcanvas', this, this.imageEl) != false){
 448
 449             this.bodyEl.un('click', this.beforeSelectFile, this);
 450
 451             this.notifyEl.hide();
 452             this.thumbEl.show();
 453             this.footerEl.show();
 454
 455             this.baseRotateLevel();
 456
 457             if(this.isDocument){
 458                 this.setThumbBoxSize();
 459             }
 460
 461             this.setThumbBoxPosition();
 462
 463             this.baseScaleLevel();
 464
 465             this.draw();
 466
 467             this.resize();
 468
 469             this.canvasLoaded = true;
 470
 471         }
 472
 473         if(this.loadMask){
 474             this.maskEl.unmask();
 475         }
 476
 477     },
 478
 479     setCanvasPosition : function(center = true)
 480     {
 481         if(!this.canvasEl){
 482             return;
 483         }
 484
 485         var newCenterLeft = Math.ceil((this.bodyEl.getWidth() - this.canvasEl.width) / 2);
 486         var newCenterTop = Math.ceil((this.bodyEl.getHeight() - this.canvasEl.height) / 2);
 487
 488         if(center) {
 489             this.previewEl.setLeft(newCenterLeft);
 490             this.previewEl.setTop(newCenterTop);
 491
 492             return;
 493         }
 494
 495         var oldScaleLevel = this.baseScale * Math.pow(1.02, this.startScale);
 496         var oldCanvasWidth = Math.floor(this.imageEl.OriginWidth * oldScaleLevel);
 497         var oldCanvasHeight = Math.floor(this.imageEl.OriginHeight * oldScaleLevel);
 498
 499         var oldCenterLeft = Math.ceil((this.bodyEl.getWidth() - oldCanvasWidth) / 2);
 500         var oldCenterTop = Math.ceil((this.bodyEl.getHeight() - oldCanvasHeight) / 2);
 501
 502         var leftDiff = newCenterLeft - oldCenterLeft;
 503         var topDiff = newCenterTop - oldCenterTop;
 504
 505         var newPreviewLeft = this.previewEl.getLeft(true) + leftDiff;
 506         var newPreviewTop = this.previewEl.getTop(true) + topDiff;
 507
 508         console.log("-------------");
 509
 510         // console.log("old canvas width: " + oldCanvasWidth);
 511         // console.log("old canvas height: " + oldCanvasHeight);
 512
 513         // console.log("new canvas width: " + this.canvasEl.width);
 514         // console.log("new canvas height: " + this.canvasEl.height);
 515
 516         // console.log("old preview left: " + this.previewEl.getLeft(true));
 517         // console.log("old preview top: " + this.previewEl.getTop(true));
 518
 519         // console.log("new preview left: " + newPreviewLeft);
 520         // console.log("new preview top: " + newPreviewTop);
 521
 522         this.previewEl.setLeft(newPreviewLeft);
 523         this.previewEl.setTop(newPreviewTop);
 524
 525     },
 526
 527     onMouseDown : function(e)
 528     {
 529         e.stopEvent();
 530
 531         this.dragable = true;
 532         this.pinching = false;
 533
 534         if(this.isDocument && (this.canvasEl.width < this.thumbEl.getWidth() || this.canvasEl.height < this.thumbEl.getHeight())){
 535             this.dragable = false;
 536             return;
 537         }
 538
 539         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 540         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 541
 542     },
 543
 544     onMouseMove : function(e)
 545     {
 546         e.stopEvent();
 547
 548         if(!this.canvasLoaded){
 549             return;
 550         }
 551
 552         if (!this.dragable){
 553             return;
 554         }
 555
 556         var minX = Math.ceil(this.thumbEl.getLeft(true));
 557         var minY = Math.ceil(this.thumbEl.getTop(true));
 558
 559         var maxX = Math.ceil(minX + this.thumbEl.getWidth() - this.canvasEl.width);
 560         var maxY = Math.ceil(minY + this.thumbEl.getHeight() - this.canvasEl.height);
 561
 562         if(minX > maxX) {
 563             var tempX = minX;
 564             minX = maxX;
 565             maxX = tempX;
 566         }
 567
 568         if(minY > maxY) {
 569             var tempY = minY;
 570             minY = maxY;
 571             maxY = tempY;
 572         }
 573
 574         var x = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 575         var y = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 576
 577         x = x - this.mouseX;
 578         y = y - this.mouseY;
 579
 580         var bgX = Math.ceil(x + this.previewEl.getLeft(true));
 581         var bgY = Math.ceil(y + this.previewEl.getTop(true));
 582
 583         bgX = (bgX < minX) ? minX : ((bgX > maxX) ? maxX : bgX);
 584         bgY = (bgY < minY) ? minY : ((bgY > maxY) ? maxY : bgY);
 585
 586         this.previewEl.setLeft(bgX);
 587         this.previewEl.setTop(bgY);
 588
 589         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 590         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 591     },
 592
 593     onMouseUp : function(e)
 594     {
 595         e.stopEvent();
 596
 597         this.dragable = false;
 598     },
 599
 600     onMouseWheel : function(e)
 601     {
 602         e.stopEvent();
 603
 604         this.startScale = this.scale;
 605         this.scale = (e.getWheelDelta() > 0) ? (this.scale + 1) : (this.scale - 1);
 606
 607         if(!this.zoomable()){
 608             this.scale = this.startScale;
 609             return;
 610         }
 611
 612
 613         this.draw();
 614
 615         return;
 616     },
 617
 618     zoomable : function()
 619     {
 620         var minScale = this.thumbEl.getWidth() / this.minWidth;
 621
 622         if(this.minWidth < this.minHeight){
 623             minScale = this.thumbEl.getHeight() / this.minHeight;
 624         }
 625
 626         var width = Math.ceil(this.imageEl.OriginWidth * this.getScaleLevel() / minScale);
 627         var height = Math.ceil(this.imageEl.OriginHeight * this.getScaleLevel() / minScale);
 628
 629         var maxWidth = this.imageEl.OriginWidth;
 630         var maxHeight = this.imageEl.OriginHeight;
 631
 632
 633         var newCanvasWidth = Math.floor(this.imageEl.OriginWidth * this.getScaleLevel());
 634         var newCanvasHeight = Math.floor(this.imageEl.OriginHeight * this.getScaleLevel());
 635
 636         var oldCenterLeft = Math.ceil((this.bodyEl.getWidth() - this.canvasEl.width) / 2);
 637         var oldCenterTop = Math.ceil((this.bodyEl.getHeight() - this.canvasEl.height) / 2);
 638
 639         var newCenterLeft = Math.ceil((this.bodyEl.getWidth() - newCanvasWidth) / 2);
 640         var newCenterTop = Math.ceil((this.bodyEl.getHeight() - newCanvasHeight) / 2);
 641
 642         var leftDiff = newCenterLeft - oldCenterLeft;
 643         var topDiff = newCenterTop - oldCenterTop;
 644
 645         var newPreviewLeft = this.previewEl.getLeft(true) + leftDiff;
 646         var newPreviewTop = this.previewEl.getTop(true) + topDiff;
 647
 648         var paddingLeft = newPreviewLeft - this.thumbEl.getLeft(true);
 649         var paddingTop = newPreviewTop - this.thumbEl.getTop(true);
 650
 651         var paddingRight = this.thumbEl.getLeft(true) + this.thumbEl.getWidth() - newCanvasWidth - newPreviewLeft;
 652         var paddingBottom = this.thumbEl.getTop(true) + this.thumbEl.getHeight() - newCanvasHeight - newPreviewTop;
 653
 654         var maxPadding = (newCanvasWidth >= newCanvasHeight) ? newCanvasWidth * 0.05 : newCanvasHeight * 0.05;
 655
 656         console.log("=================================");
 657         console.log("old canvas width: " + this.canvasEl.width);
 658         console.log("old canvas height: " + this.canvasEl.height);
 659
 660         console.log("new canvas width: " + newCanvasWidth);
 661         console.log("new canvas height: " + newCanvasHeight);
 662
 663         console.log("old preview left: " + this.previewEl.getLeft(true));
 664         console.log("old preview top: " + this.previewEl.getTop(true));
 665
 666         console.log("new preview left: " + newPreviewLeft);
 667         console.log("new preview top: " + newPreviewTop);
 668
 669         console.log("padding left: " + paddingLeft);
 670         console.log("padding top: " + paddingTop);
 671
 672         console.log("padding right: " + paddingRight);
 673         console.log("padding bottom: " + paddingBottom);
 674
 675         console.log("max padding: " + maxPadding);
 676
 677         if(
 678                 this.isDocument &&
 679                 (this.rotate == 0 || this.rotate == 180) &&
 680                 (
 681                     width > this.imageEl.OriginWidth ||
 682                     height > this.imageEl.OriginHeight ||
 683                     (width < this.minWidth && height < this.minHeight)
 684                 )
 685         ){
 686             return false;
 687         }
 688
 689         if(
 690                 this.isDocument &&
 691                 (this.rotate == 90 || this.rotate == 270) &&
 692                 (
 693                     width > this.imageEl.OriginWidth ||
 694                     height > this.imageEl.OriginHeight ||
 695                     (width < this.minHeight && height < this.minWidth)
 696                 )
 697         ){
 698             return false;
 699         }
 700
 701         if(
 702                 !this.isDocument &&
 703                 (this.rotate == 0 || this.rotate == 180) &&
 704                 (
 705                     (this.imageEl.OriginWidth / this.imageEl.OriginHeight >= this.minWidth / this.minHeight) && paddingLeft > maxPadding ||
 706                     (this.imageEl.OriginWidth / this.imageEl.OriginHeight >= this.minWidth / this.minHeight) && paddingRight > maxPadding ||
 707                     (this.imageEl.OriginWidth / this.imageEl.OriginHeight <= this.minWidth / this.minHeight) && paddingTop > maxPadding ||
 708                     (this.imageEl.OriginWidth / this.imageEl.OriginHeight <= this.minWidth / this.minHeight) && paddingBottom > maxPadding ||
 709                     width > maxWidth ||
 710                     height > maxHeight
 711                 )
 712         ){
 713             return false;
 714         }
 715
 716         if(
 717                 !this.isDocument &&
 718                 (this.rotate == 90 || this.rotate == 270) &&
 719                 (
 720                     width < this.minHeight ||
 721                     width > this.imageEl.OriginWidth ||
 722                     height < this.minWidth ||
 723                     height > this.imageEl.OriginHeight
 724                 )
 725         ){
 726             return false;
 727         }
 728
 729         return true;
 730
 731     },
 732
 733     onRotateLeft : function(e)
 734     {
 735         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 736
 737             var minScale = this.thumbEl.getWidth() / this.minWidth;
 738
 739             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 740             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 741
 742             this.startScale = this.scale;
 743
 744             while (this.getScaleLevel() < minScale){
 745
 746                 this.scale = this.scale + 1;
 747
 748                 if(!this.zoomable()){
 749                     break;
 750                 }
 751
 752                 if(
 753                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 754                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 755                 ){
 756                     continue;
 757                 }
 758
 759                 this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 760
 761                 this.draw();
 762
 763                 return;
 764             }
 765
 766             this.scale = this.startScale;
 767
 768             this.onRotateFail();
 769
 770             return false;
 771         }
 772
 773         this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 774
 775         if(this.isDocument){
 776             this.setThumbBoxSize();
 777             this.setThumbBoxPosition();
 778             this.setCanvasPosition();
 779         }
 780
 781         this.draw();
 782
 783         this.fireEvent('rotate', this, 'left');
 784
 785     },
 786
 787     onRotateRight : function(e)
 788     {
 789         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 790
 791             var minScale = this.thumbEl.getWidth() / this.minWidth;
 792
 793             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 794             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 795
 796             this.startScale = this.scale;
 797
 798             while (this.getScaleLevel() < minScale){
 799
 800                 this.scale = this.scale + 1;
 801
 802                 if(!this.zoomable()){
 803                     break;
 804                 }
 805
 806                 if(
 807                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 808                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 809                 ){
 810                     continue;
 811                 }
 812
 813                 this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 814
 815                 this.draw();
 816
 817                 return;
 818             }
 819
 820             this.scale = this.startScale;
 821
 822             this.onRotateFail();
 823
 824             return false;
 825         }
 826
 827         this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 828
 829         if(this.isDocument){
 830             this.setThumbBoxSize();
 831             this.setThumbBoxPosition();
 832             this.setCanvasPosition();
 833         }
 834
 835         this.draw();
 836
 837         this.fireEvent('rotate', this, 'right');
 838     },
 839
 840     onRotateFail : function()
 841     {
 842         this.errorEl.show(true);
 843
 844         var _this = this;
 845
 846         (function() { _this.errorEl.hide(true); }).defer(this.errorTimeout);
 847     },
 848
 849     draw : function()
 850     {
 851         this.previewEl.dom.innerHTML = '';
 852
 853         var canvasEl = document.createElement("canvas");
 854
 855         var contextEl = canvasEl.getContext("2d");
 856
 857         canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 858         canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 859         var center = this.imageEl.OriginWidth / 2;
 860
 861         if(this.imageEl.OriginWidth < this.imageEl.OriginHeight){
 862             canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 863             canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 864             center = this.imageEl.OriginHeight / 2;
 865         }
 866
 867         contextEl.scale(this.getScaleLevel(), this.getScaleLevel());
 868
 869         contextEl.translate(center, center);
 870         contextEl.rotate(this.rotate * Math.PI / 180);
 871
 872         contextEl.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 873
 874         this.canvasEl = document.createElement("canvas");
 875
 876         this.contextEl = this.canvasEl.getContext("2d");
 877
 878         switch (this.rotate) {
 879             case 0 :
 880
 881                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 882                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 883
 884                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 885
 886                 break;
 887             case 90 :
 888
 889                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 890                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 891
 892                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 893                     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);
 894                     break;
 895                 }
 896
 897                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 898
 899                 break;
 900             case 180 :
 901
 902                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 903                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 904
 905                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 906                     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);
 907                     break;
 908                 }
 909
 910                 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);
 911
 912                 break;
 913             case 270 :
 914
 915                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 916                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 917
 918                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 919                     this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 920                     break;
 921                 }
 922
 923                 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);
 924
 925                 break;
 926             default :
 927                 break;
 928         }
 929
 930         this.previewEl.appendChild(this.canvasEl);
 931
 932         this.setCanvasPosition(false);
 933     },
 934
 935     crop : function()
 936     {
 937         if(!this.canvasLoaded){
 938             return;
 939         }
 940
 941         var imageCanvas = document.createElement("canvas");
 942
 943         var imageContext = imageCanvas.getContext("2d");
 944
 945         imageCanvas.width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 946         imageCanvas.height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 947
 948         var center = imageCanvas.width / 2;
 949
 950         imageContext.translate(center, center);
 951
 952         imageContext.rotate(this.rotate * Math.PI / 180);
 953
 954         imageContext.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 955
 956         var canvas = document.createElement("canvas");
 957
 958         var context = canvas.getContext("2d");
 959
 960         canvas.width = this.thumbEl.getWidth() / this.getScaleLevel();
 961
 962         canvas.height = this.thumbEl.getHeight() / this.getScaleLevel();
 963
 964         switch (this.rotate) {
 965             case 0 :
 966
 967                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 968                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 969
 970                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 971                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 972
 973                 var sx = this.thumbEl.getLeft(true) - this.previewEl.getLeft(true);
 974                 var sy = this.thumbEl.getTop(true) - this.previewEl.getTop(true);
 975
 976                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 977                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 978
 979                 if(canvas.width > this.outputMaxWidth) {
 980                     var scale = this.outputMaxWidth / canvas.width;
 981                     canvas.width = canvas.width * scale;
 982                     canvas.height = canvas.height * scale;
 983                     context.scale(scale, scale);
 984                 }
 985
 986                 context.fillStyle = 'white';
 987                 context.fillRect(0, 0, this.thumbEl.getWidth() / this.getScaleLevel(), this.thumbEl.getHeight() / this.getScaleLevel());
 988
 989
 990                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
 991
 992                 break;
 993             case 90 :
 994
 995                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
 996                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
 997
 998                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 999                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1000
1001                 var targetWidth = this.minWidth - 2 * x;
1002                 var targetHeight = this.minHeight - 2 * y;
1003
1004                 var scale = 1;
1005
1006                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1007                     scale = targetWidth / width;
1008                 }
1009
1010                 if(x > 0 && y == 0){
1011                     scale = targetHeight / height;
1012                 }
1013
1014                 if(x > 0 && y > 0){
1015                     scale = targetWidth / width;
1016
1017                     if(width < height){
1018                         scale = targetHeight / height;
1019                     }
1020                 }
1021
1022                 context.scale(scale, scale);
1023
1024                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1025                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1026
1027                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1028                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1029
1030                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
1031
1032                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1033
1034                 break;
1035             case 180 :
1036
1037                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
1038                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
1039
1040                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1041                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1042
1043                 var targetWidth = this.minWidth - 2 * x;
1044                 var targetHeight = this.minHeight - 2 * y;
1045
1046                 var scale = 1;
1047
1048                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1049                     scale = targetWidth / width;
1050                 }
1051
1052                 if(x > 0 && y == 0){
1053                     scale = targetHeight / height;
1054                 }
1055
1056                 if(x > 0 && y > 0){
1057                     scale = targetWidth / width;
1058
1059                     if(width < height){
1060                         scale = targetHeight / height;
1061                     }
1062                 }
1063
1064                 context.scale(scale, scale);
1065
1066                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1067                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1068
1069                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1070                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1071
1072                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1073                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
1074
1075                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1076
1077                 break;
1078             case 270 :
1079
1080                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
1081                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
1082
1083                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1084                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1085
1086                 var targetWidth = this.minWidth - 2 * x;
1087                 var targetHeight = this.minHeight - 2 * y;
1088
1089                 var scale = 1;
1090
1091                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1092                     scale = targetWidth / width;
1093                 }
1094
1095                 if(x > 0 && y == 0){
1096                     scale = targetHeight / height;
1097                 }
1098
1099                 if(x > 0 && y > 0){
1100                     scale = targetWidth / width;
1101
1102                     if(width < height){
1103                         scale = targetHeight / height;
1104                     }
1105                 }
1106
1107                 context.scale(scale, scale);
1108                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1109                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1110
1111                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1112                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1113
1114                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1115
1116                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1117
1118                 break;
1119             default :
1120                 break;
1121         }
1122
1123         this.cropData = canvas.toDataURL(this.cropType);
1124
1125         if(this.fireEvent('crop', this, this.cropData) !== false){
1126             this.process(this.file, this.cropData);
1127         }
1128
1129         return;
1130
1131     },
1132
1133     setThumbBoxSize : function()
1134     {
1135         var width, height;
1136
1137         if(this.isDocument && typeof(this.imageEl) != 'undefined'){
1138             width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.max(this.minWidth, this.minHeight) : Math.min(this.minWidth, this.minHeight);
1139             height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.min(this.minWidth, this.minHeight) : Math.max(this.minWidth, this.minHeight);
1140
1141             this.minWidth = width;
1142             this.minHeight = height;
1143
1144             if(this.rotate == 90 || this.rotate == 270){
1145                 this.minWidth = height;
1146                 this.minHeight = width;
1147             }
1148         }
1149
1150         height = this.windowSize;
1151         width = Math.ceil(this.minWidth * height / this.minHeight);
1152
1153         if(this.minWidth > this.minHeight){
1154             width = this.windowSize;
1155             height = Math.ceil(this.minHeight * width / this.minWidth);
1156         }
1157
1158         this.thumbEl.setStyle({
1159             width : width + 'px',
1160             height : height + 'px'
1161         });
1162
1163         return;
1164
1165     },
1166
1167     setThumbBoxPosition : function()
1168     {
1169         var x = Math.ceil((this.bodyEl.getWidth() - this.thumbEl.getWidth()) / 2 );
1170         var y = Math.ceil((this.bodyEl.getHeight() - this.thumbEl.getHeight()) / 2);
1171
1172         this.thumbEl.setLeft(x);
1173         this.thumbEl.setTop(y);
1174
1175     },
1176
1177     baseRotateLevel : function()
1178     {
1179         this.baseRotate = 1;
1180
1181         if(
1182                 typeof(this.exif) != 'undefined' &&
1183                 typeof(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != 'undefined' &&
1184                 [1, 3, 6, 8].indexOf(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != -1
1185         ){
1186             this.baseRotate = this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']];
1187         }
1188
1189         this.rotate = Roo.dialog.UploadCropbox['Orientation'][this.baseRotate];
1190
1191     },
1192
1193     baseScaleLevel : function()
1194     {
1195         var width, height;
1196
1197         if(this.isDocument){
1198
1199             if(this.baseRotate == 6 || this.baseRotate == 8){
1200
1201                 height = this.thumbEl.getHeight();
1202                 this.baseScale = height / this.imageEl.OriginWidth;
1203
1204                 if(this.imageEl.OriginHeight * this.baseScale > this.thumbEl.getWidth()){
1205                     width = this.thumbEl.getWidth();
1206                     this.baseScale = width / this.imageEl.OriginHeight;
1207                 }
1208
1209                 return;
1210             }
1211
1212             height = this.thumbEl.getHeight();
1213             this.baseScale = height / this.imageEl.OriginHeight;
1214
1215             if(this.imageEl.OriginWidth * this.baseScale > this.thumbEl.getWidth()){
1216                 width = this.thumbEl.getWidth();
1217                 this.baseScale = width / this.imageEl.OriginWidth;
1218             }
1219
1220             return;
1221         }
1222
1223         if(this.baseRotate == 6 || this.baseRotate == 8){
1224
1225             width = this.thumbEl.getHeight();
1226             this.baseScale = width / this.imageEl.OriginHeight;
1227
1228             if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getWidth()){
1229                 height = this.thumbEl.getWidth();
1230                 this.baseScale = height / this.imageEl.OriginHeight;
1231             }
1232
1233             if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1234                 height = this.thumbEl.getWidth();
1235                 this.baseScale = height / this.imageEl.OriginHeight;
1236
1237                 if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getHeight()){
1238                     width = this.thumbEl.getHeight();
1239                     this.baseScale = width / this.imageEl.OriginWidth;
1240                 }
1241             }
1242
1243             return;
1244         }
1245
1246         width = this.thumbEl.getWidth();
1247         this.baseScale = width / this.imageEl.OriginWidth;
1248
1249         if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getHeight()){
1250             height = this.thumbEl.getHeight();
1251             this.baseScale = height / this.imageEl.OriginHeight;
1252         }
1253
1254         if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1255
1256             height = this.thumbEl.getHeight();
1257             this.baseScale = height / this.imageEl.OriginHeight;
1258
1259             if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getWidth()){
1260                 width = this.thumbEl.getWidth();
1261                 this.baseScale = width / this.imageEl.OriginWidth;
1262             }
1263
1264         }
1265
1266         if(this.imageEl.OriginWidth < this.minWidth || this.imageEl.OriginHeight < this.minHeight) {
1267             this.baseScale = width / this.minWidth;
1268         }
1269
1270         return;
1271     },
1272
1273     getScaleLevel : function()
1274     {
1275         return this.baseScale * Math.pow(1.02, this.scale);
1276     },
1277
1278     onTouchStart : function(e)
1279     {
1280         if(!this.canvasLoaded){
1281             this.beforeSelectFile(e);
1282             return;
1283         }
1284
1285         var touches = e.browserEvent.touches;
1286
1287         if(!touches){
1288             return;
1289         }
1290
1291         if(touches.length == 1){
1292             this.onMouseDown(e);
1293             return;
1294         }
1295
1296         if(touches.length != 2){
1297             return;
1298         }
1299
1300         var coords = [];
1301
1302         for(var i = 0, finger; finger = touches[i]; i++){
1303             coords.push(finger.pageX, finger.pageY);
1304         }
1305
1306         var x = Math.pow(coords[0] - coords[2], 2);
1307         var y = Math.pow(coords[1] - coords[3], 2);
1308
1309         this.startDistance = Math.sqrt(x + y);
1310
1311         this.startScale = this.scale;
1312
1313         this.pinching = true;
1314         this.dragable = false;
1315
1316     },
1317
1318     onTouchMove : function(e)
1319     {
1320         if(!this.pinching && !this.dragable){
1321             return;
1322         }
1323
1324         var touches = e.browserEvent.touches;
1325
1326         if(!touches){
1327             return;
1328         }
1329
1330         if(this.dragable){
1331             this.onMouseMove(e);
1332             return;
1333         }
1334
1335         var coords = [];
1336
1337         for(var i = 0, finger; finger = touches[i]; i++){
1338             coords.push(finger.pageX, finger.pageY);
1339         }
1340
1341         var x = Math.pow(coords[0] - coords[2], 2);
1342         var y = Math.pow(coords[1] - coords[3], 2);
1343
1344         this.endDistance = Math.sqrt(x + y);
1345
1346         this.scale = this.startScale + Math.floor(Math.log(this.endDistance / this.startDistance) / Math.log(1.1));
1347
1348         if(!this.zoomable()){
1349             this.scale = this.startScale;
1350             return;
1351         }
1352
1353         this.draw();
1354
1355     },
1356
1357     onTouchEnd : function(e)
1358     {
1359         this.pinching = false;
1360         this.dragable = false;
1361
1362     },
1363
1364     process : function(file, crop)
1365     {
1366         if(this.loadMask){
1367             this.maskEl.mask(this.loadingText);
1368         }
1369
1370         this.xhr = new XMLHttpRequest();
1371
1372         file.xhr = this.xhr;
1373
1374         this.xhr.open(this.method, this.url, true);
1375
1376         var headers = {
1377             "Accept": "application/json",
1378             "Cache-Control": "no-cache",
1379             "X-Requested-With": "XMLHttpRequest"
1380         };
1381
1382         for (var headerName in headers) {
1383             var headerValue = headers[headerName];
1384             if (headerValue) {
1385                 this.xhr.setRequestHeader(headerName, headerValue);
1386             }
1387         }
1388
1389         var _this = this;
1390
1391         this.xhr.onload = function()
1392         {
1393             _this.xhrOnLoad(_this.xhr);
1394         }
1395
1396         this.xhr.onerror = function()
1397         {
1398             _this.xhrOnError(_this.xhr);
1399         }
1400
1401         var formData = new FormData();
1402
1403         formData.append('returnHTML', 'NO');
1404
1405         if(crop){
1406             formData.append('crop', crop);
1407             var blobBin = atob(crop.split(',')[1]);
1408             var array = [];
1409             for(var i = 0; i < blobBin.length; i++) {
1410                 array.push(blobBin.charCodeAt(i));
1411             }
1412             var croppedFile =new Blob([new Uint8Array(array)], {type: this.cropType});
1413             formData.append(this.paramName, croppedFile, file.name);
1414         }
1415
1416         if(typeof(file.filename) != 'undefined'){
1417             formData.append('filename', file.filename);
1418         }
1419
1420         if(typeof(file.mimetype) != 'undefined'){
1421             formData.append('mimetype', file.mimetype);
1422         }
1423
1424         if(this.fireEvent('arrange', this, formData) != false){
1425             this.xhr.send(formData);
1426         };
1427     },
1428
1429     xhrOnLoad : function(xhr)
1430     {
1431         if(this.loadMask){
1432             this.maskEl.unmask();
1433         }
1434
1435         if (xhr.readyState !== 4) {
1436             this.fireEvent('exception', this, xhr);
1437             return;
1438         }
1439
1440         var response = Roo.decode(xhr.responseText);
1441
1442         if(!response.success){
1443             this.fireEvent('exception', this, xhr);
1444             return;
1445         }
1446
1447         var response = Roo.decode(xhr.responseText);
1448
1449         this.fireEvent('upload', this, response);
1450
1451     },
1452
1453     xhrOnError : function()
1454     {
1455         if(this.loadMask){
1456             this.maskEl.unmask();
1457         }
1458
1459         Roo.log('xhr on error');
1460
1461         var response = Roo.decode(xhr.responseText);
1462
1463         Roo.log(response);
1464
1465     },
1466
1467     prepare : function(file)
1468     {
1469         if(this.loadMask){
1470             this.maskEl.mask(this.loadingText);
1471         }
1472
1473         this.file = false;
1474         this.exif = {};
1475
1476         if(typeof(file) === 'string'){
1477             this.loadCanvas(file);
1478             return;
1479         }
1480
1481         if(!file || !this.urlAPI){
1482             return;
1483         }
1484
1485         this.file = file;
1486         if(typeof(file.type) != 'undefined' && file.type.length != 0) {
1487             this.cropType = file.type;
1488         }
1489
1490         var _this = this;
1491
1492         if(this.fireEvent('prepare', this, this.file) != false){
1493
1494             var reader = new FileReader();
1495
1496             reader.onload = function (e) {
1497                 if (e.target.error) {
1498                     Roo.log(e.target.error);
1499                     return;
1500                 }
1501
1502                 var buffer = e.target.result,
1503                     dataView = new DataView(buffer),
1504                     offset = 2,
1505                     maxOffset = dataView.byteLength - 4,
1506                     markerBytes,
1507                     markerLength;
1508
1509                 if (dataView.getUint16(0) === 0xffd8) {
1510                     while (offset < maxOffset) {
1511                         markerBytes = dataView.getUint16(offset);
1512
1513                         if ((markerBytes >= 0xffe0 && markerBytes <= 0xffef) || markerBytes === 0xfffe) {
1514                             markerLength = dataView.getUint16(offset + 2) + 2;
1515                             if (offset + markerLength > dataView.byteLength) {
1516                                 Roo.log('Invalid meta data: Invalid segment size.');
1517                                 break;
1518                             }
1519
1520                             if(markerBytes == 0xffe1){
1521                                 _this.parseExifData(
1522                                     dataView,
1523                                     offset,
1524                                     markerLength
1525                                 );
1526                             }
1527
1528                             offset += markerLength;
1529
1530                             continue;
1531                         }
1532
1533                         break;
1534                     }
1535
1536                 }
1537
1538                 var url = _this.urlAPI.createObjectURL(_this.file);
1539
1540                 _this.loadCanvas(url);
1541
1542                 return;
1543             }
1544
1545             reader.readAsArrayBuffer(this.file);
1546
1547         }
1548
1549     },
1550
1551     parseExifData : function(dataView, offset, length)
1552     {
1553         var tiffOffset = offset + 10,
1554             littleEndian,
1555             dirOffset;
1556
1557         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1558             // No Exif data, might be XMP data instead
1559             return;
1560         }
1561
1562         // Check for the ASCII code for "Exif" (0x45786966):
1563         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1564             // No Exif data, might be XMP data instead
1565             return;
1566         }
1567         if (tiffOffset + 8 > dataView.byteLength) {
1568             Roo.log('Invalid Exif data: Invalid segment size.');
1569             return;
1570         }
1571         // Check for the two null bytes:
1572         if (dataView.getUint16(offset + 8) !== 0x0000) {
1573             Roo.log('Invalid Exif data: Missing byte alignment offset.');
1574             return;
1575         }
1576         // Check the byte alignment:
1577         switch (dataView.getUint16(tiffOffset)) {
1578         case 0x4949:
1579             littleEndian = true;
1580             break;
1581         case 0x4D4D:
1582             littleEndian = false;
1583             break;
1584         default:
1585             Roo.log('Invalid Exif data: Invalid byte alignment marker.');
1586             return;
1587         }
1588         // Check for the TIFF tag marker (0x002A):
1589         if (dataView.getUint16(tiffOffset + 2, littleEndian) !== 0x002A) {
1590             Roo.log('Invalid Exif data: Missing TIFF marker.');
1591             return;
1592         }
1593         // Retrieve the directory offset bytes, usually 0x00000008 or 8 decimal:
1594         dirOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
1595
1596         this.parseExifTags(
1597             dataView,
1598             tiffOffset,
1599             tiffOffset + dirOffset,
1600             littleEndian
1601         );
1602     },
1603
1604     parseExifTags : function(dataView, tiffOffset, dirOffset, littleEndian)
1605     {
1606         var tagsNumber,
1607             dirEndOffset,
1608             i;
1609         if (dirOffset + 6 > dataView.byteLength) {
1610             Roo.log('Invalid Exif data: Invalid directory offset.');
1611             return;
1612         }
1613         tagsNumber = dataView.getUint16(dirOffset, littleEndian);
1614         dirEndOffset = dirOffset + 2 + 12 * tagsNumber;
1615         if (dirEndOffset + 4 > dataView.byteLength) {
1616             Roo.log('Invalid Exif data: Invalid directory size.');
1617             return;
1618         }
1619         for (i = 0; i < tagsNumber; i += 1) {
1620             this.parseExifTag(
1621                 dataView,
1622                 tiffOffset,
1623                 dirOffset + 2 + 12 * i, // tag offset
1624                 littleEndian
1625             );
1626         }
1627         // Return the offset to the next directory:
1628         return dataView.getUint32(dirEndOffset, littleEndian);
1629     },
1630
1631     parseExifTag : function (dataView, tiffOffset, offset, littleEndian)
1632     {
1633         var tag = dataView.getUint16(offset, littleEndian);
1634
1635         this.exif[tag] = this.getExifValue(
1636             dataView,
1637             tiffOffset,
1638             offset,
1639             dataView.getUint16(offset + 2, littleEndian), // tag type
1640             dataView.getUint32(offset + 4, littleEndian), // tag length
1641             littleEndian
1642         );
1643     },
1644
1645     getExifValue : function (dataView, tiffOffset, offset, type, length, littleEndian)
1646     {
1647         var tagType = Roo.dialog.UploadCropbox.exifTagTypes[type],
1648             tagSize,
1649             dataOffset,
1650             values,
1651             i,
1652             str,
1653             c;
1654
1655         if (!tagType) {
1656             Roo.log('Invalid Exif data: Invalid tag type.');
1657             return;
1658         }
1659
1660         tagSize = tagType.size * length;
1661         // Determine if the value is contained in the dataOffset bytes,
1662         // or if the value at the dataOffset is a pointer to the actual data:
1663         dataOffset = tagSize > 4 ?
1664                 tiffOffset + dataView.getUint32(offset + 8, littleEndian) : (offset + 8);
1665         if (dataOffset + tagSize > dataView.byteLength) {
1666             Roo.log('Invalid Exif data: Invalid data offset.');
1667             return;
1668         }
1669         if (length === 1) {
1670             return tagType.getValue(dataView, dataOffset, littleEndian);
1671         }
1672         values = [];
1673         for (i = 0; i < length; i += 1) {
1674             values[i] = tagType.getValue(dataView, dataOffset + i * tagType.size, littleEndian);
1675         }
1676
1677         if (tagType.ascii) {
1678             str = '';
1679             // Concatenate the chars:
1680             for (i = 0; i < values.length; i += 1) {
1681                 c = values[i];
1682                 // Ignore the terminating NULL byte(s):
1683                 if (c === '\u0000') {
1684                     break;
1685                 }
1686                 str += c;
1687             }
1688             return str;
1689         }
1690         return values;
1691     }
1692
1693 });
1694
1695 Roo.apply(Roo.dialog.UploadCropbox, {
1696     tags : {
1697         'Orientation': 0x0112
1698     },
1699
1700     Orientation: {
1701             1: 0, //'top-left',
1702 //            2: 'top-right',
1703             3: 180, //'bottom-right',
1704 //            4: 'bottom-left',
1705 //            5: 'left-top',
1706             6: 90, //'right-top',
1707 //            7: 'right-bottom',
1708             8: 270 //'left-bottom'
1709     },
1710
1711     exifTagTypes : {
1712         // byte, 8-bit unsigned int:
1713         1: {
1714             getValue: function (dataView, dataOffset) {
1715                 return dataView.getUint8(dataOffset);
1716             },
1717             size: 1
1718         },
1719         // ascii, 8-bit byte:
1720         2: {
1721             getValue: function (dataView, dataOffset) {
1722                 return String.fromCharCode(dataView.getUint8(dataOffset));
1723             },
1724             size: 1,
1725             ascii: true
1726         },
1727         // short, 16 bit int:
1728         3: {
1729             getValue: function (dataView, dataOffset, littleEndian) {
1730                 return dataView.getUint16(dataOffset, littleEndian);
1731             },
1732             size: 2
1733         },
1734         // long, 32 bit int:
1735         4: {
1736             getValue: function (dataView, dataOffset, littleEndian) {
1737                 return dataView.getUint32(dataOffset, littleEndian);
1738             },
1739             size: 4
1740         },
1741         // rational = two long values, first is numerator, second is denominator:
1742         5: {
1743             getValue: function (dataView, dataOffset, littleEndian) {
1744                 return dataView.getUint32(dataOffset, littleEndian) /
1745                     dataView.getUint32(dataOffset + 4, littleEndian);
1746             },
1747             size: 8
1748         },
1749         // slong, 32 bit signed int:
1750         9: {
1751             getValue: function (dataView, dataOffset, littleEndian) {
1752                 return dataView.getInt32(dataOffset, littleEndian);
1753             },
1754             size: 4
1755         },
1756         // srational, two slongs, first is numerator, second is denominator:
1757         10: {
1758             getValue: function (dataView, dataOffset, littleEndian) {
1759                 return dataView.getInt32(dataOffset, littleEndian) /
1760                     dataView.getInt32(dataOffset + 4, littleEndian);
1761             },
1762             size: 8
1763         }
1764     },
1765
1766     footer : {
1767         STANDARD : [
1768             {
1769                 tag : 'div',
1770                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1771                 action : 'rotate-left',
1772                 cn : [
1773                     {
1774                         tag : 'button',
1775                         cls : 'btn btn-default',
1776                         html : '<i class="fa fa-undo"></i>'
1777                     }
1778                 ]
1779             },
1780             {
1781                 tag : 'div',
1782                 cls : 'btn-group roo-upload-cropbox-picture',
1783                 action : 'picture',
1784                 cn : [
1785                     {
1786                         tag : 'button',
1787                         cls : 'btn btn-default',
1788                         html : '<i class="fa fa-picture-o"></i>'
1789                     }
1790                 ]
1791             },
1792             {
1793                 tag : 'div',
1794                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1795                 action : 'rotate-right',
1796                 cn : [
1797                     {
1798                         tag : 'button',
1799                         cls : 'btn btn-default',
1800                         html : '<i class="fa fa-repeat"></i>'
1801                     }
1802                 ]
1803             }
1804         ],
1805         DOCUMENT : [
1806             {
1807                 tag : 'div',
1808                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1809                 action : 'rotate-left',
1810                 cn : [
1811                     {
1812                         tag : 'button',
1813                         cls : 'btn btn-default',
1814                         html : '<i class="fa fa-undo"></i>'
1815                     }
1816                 ]
1817             },
1818             {
1819                 tag : 'div',
1820                 cls : 'btn-group roo-upload-cropbox-download',
1821                 action : 'download',
1822                 cn : [
1823                     {
1824                         tag : 'button',
1825                         cls : 'btn btn-default',
1826                         html : '<i class="fa fa-download"></i>'
1827                     }
1828                 ]
1829             },
1830             {
1831                 tag : 'div',
1832                 cls : 'btn-group roo-upload-cropbox-crop',
1833                 action : 'crop',
1834                 cn : [
1835                     {
1836                         tag : 'button',
1837                         cls : 'btn btn-default',
1838                         html : '<i class="fa fa-crop"></i>'
1839                     }
1840                 ]
1841             },
1842             {
1843                 tag : 'div',
1844                 cls : 'btn-group roo-upload-cropbox-trash',
1845                 action : 'trash',
1846                 cn : [
1847                     {
1848                         tag : 'button',
1849                         cls : 'btn btn-default',
1850                         html : '<i class="fa fa-trash"></i>'
1851                     }
1852                 ]
1853             },
1854             {
1855                 tag : 'div',
1856                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1857                 action : 'rotate-right',
1858                 cn : [
1859                     {
1860                         tag : 'button',
1861                         cls : 'btn btn-default',
1862                         html : '<i class="fa fa-repeat"></i>'
1863                     }
1864                 ]
1865             }
1866         ],
1867         ROTATOR : [
1868             {
1869                 tag : 'div',
1870                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1871                 action : 'rotate-left',
1872                 cn : [
1873                     {
1874                         tag : 'button',
1875                         cls : 'btn btn-default',
1876                         html : '<i class="fa fa-undo"></i>'
1877                     }
1878                 ]
1879             },
1880             {
1881                 tag : 'div',
1882                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1883                 action : 'rotate-right',
1884                 cn : [
1885                     {
1886                         tag : 'button',
1887                         cls : 'btn btn-default',
1888                         html : '<i class="fa fa-repeat"></i>'
1889                     }
1890                 ]
1891             }
1892         ],
1893         CENTER : [
1894             {
1895                 tag : 'div',
1896                 cls : 'btn-group roo-upload-cropbox-center',
1897                 action : 'center',
1898                 cn : [
1899                     {
1900                         tag : 'button',
1901                         cls : 'btn btn-default',
1902                         html : 'CENTER'
1903                     }
1904                 ]
1905             }
1906         ]
1907     }
1908 });