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         Roo.log("-------------");
 509
 510         // Roo.log("old canvas width: " + oldCanvasWidth);
 511         // Roo.log("old canvas height: " + oldCanvasHeight);
 512
 513         // Roo.log("new canvas width: " + this.canvasEl.width);
 514         // Roo.log("new canvas height: " + this.canvasEl.height);
 515
 516         // Roo.log("old preview left: " + this.previewEl.getLeft(true));
 517         // Roo.log("old preview top: " + this.previewEl.getTop(true));
 518
 519         // Roo.log("new preview left: " + newPreviewLeft);
 520         // Roo.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 maxPaddingLeft = newCanvasWidth > newCanvasHeight ? newCanvasWidth * 0.05 : newCanvasHeight * 0.05;
 655         var maxPaddingTop = newCanvasWidth > newCanvasHeight ? newCanvasWidth * 0.05 : newCanvasHeight * 0.05;
 656
 657         if ((this.imageEl.OriginWidth / this.imageEl.OriginHeight <= this.minWidth / this.minHeight)) {
 658             maxPaddingLeft = (newCanvasHeight * this.minWidth / this.minHeight - newCanvasWidth) / 2 + maxPaddingTop;
 659         }
 660
 661         if ((this.imageEl.OriginWidth / this.imageEl.OriginHeight >= this.minWidth / this.minHeight)) {
 662             maxPaddingTop = (newCanvasWidth * this.minHeight / this.minWidth - newCanvasHeight) / 2 + maxPaddingLeft;
 663         }
 664
 665         Roo.log("=================================");
 666         Roo.log("old canvas width: " + this.canvasEl.width);
 667         Roo.log("old canvas height: " + this.canvasEl.height);
 668
 669         Roo.log("new canvas width: " + newCanvasWidth);
 670         Roo.log("new canvas height: " + newCanvasHeight);
 671
 672         Roo.log("old preview left: " + this.previewEl.getLeft(true));
 673         Roo.log("old preview top: " + this.previewEl.getTop(true));
 674
 675         Roo.log("new preview left: " + newPreviewLeft);
 676         Roo.log("new preview top: " + newPreviewTop);
 677
 678         Roo.log("padding left: " + paddingLeft);
 679         Roo.log("padding top: " + paddingTop);
 680
 681         Roo.log("padding right: " + paddingRight);
 682         Roo.log("padding bottom: " + paddingBottom);
 683
 684         Roo.log("max padding left: " + maxPaddingLeft);
 685         Roo.log("max padding top: " + maxPaddingTop);
 686
 687         if(
 688                 this.isDocument &&
 689                 (this.rotate == 0 || this.rotate == 180) &&
 690                 (
 691                     width > this.imageEl.OriginWidth ||
 692                     height > this.imageEl.OriginHeight ||
 693                     (width < this.minWidth && height < this.minHeight)
 694                 )
 695         ){
 696             return false;
 697         }
 698
 699         if(
 700                 this.isDocument &&
 701                 (this.rotate == 90 || this.rotate == 270) &&
 702                 (
 703                     width > this.imageEl.OriginWidth ||
 704                     height > this.imageEl.OriginHeight ||
 705                     (width < this.minHeight && height < this.minWidth)
 706                 )
 707         ){
 708             return false;
 709         }
 710
 711         if(
 712                 !this.isDocument &&
 713                 (this.rotate == 0 || this.rotate == 180) &&
 714                 (
 715                     // for zoom out
 716                     paddingLeft > maxPaddingLeft ||
 717                     paddingRight > maxPaddingLeft ||
 718                     paddingTop > maxPaddingTop ||
 719                     paddingBottom > maxPaddingTop ||
 720                     // for zoom in
 721                     width > maxWidth ||
 722                     height > maxHeight
 723                 )
 724         ){
 725             return false;
 726         }
 727
 728         if(
 729                 !this.isDocument &&
 730                 (this.rotate == 90 || this.rotate == 270) &&
 731                 (
 732                     width < this.minHeight ||
 733                     width > this.imageEl.OriginWidth ||
 734                     height < this.minWidth ||
 735                     height > this.imageEl.OriginHeight
 736                 )
 737         ){
 738             return false;
 739         }
 740
 741         return true;
 742
 743     },
 744
 745     onRotateLeft : function(e)
 746     {
 747         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 748
 749             var minScale = this.thumbEl.getWidth() / this.minWidth;
 750
 751             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 752             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 753
 754             this.startScale = this.scale;
 755
 756             while (this.getScaleLevel() < minScale){
 757
 758                 this.scale = this.scale + 1;
 759
 760                 if(!this.zoomable()){
 761                     break;
 762                 }
 763
 764                 if(
 765                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 766                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 767                 ){
 768                     continue;
 769                 }
 770
 771                 this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 772
 773                 this.draw();
 774
 775                 return;
 776             }
 777
 778             this.scale = this.startScale;
 779
 780             this.onRotateFail();
 781
 782             return false;
 783         }
 784
 785         this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 786
 787         if(this.isDocument){
 788             this.setThumbBoxSize();
 789             this.setThumbBoxPosition();
 790             this.setCanvasPosition();
 791         }
 792
 793         this.draw();
 794
 795         this.fireEvent('rotate', this, 'left');
 796
 797     },
 798
 799     onRotateRight : function(e)
 800     {
 801         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 802
 803             var minScale = this.thumbEl.getWidth() / this.minWidth;
 804
 805             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 806             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 807
 808             this.startScale = this.scale;
 809
 810             while (this.getScaleLevel() < minScale){
 811
 812                 this.scale = this.scale + 1;
 813
 814                 if(!this.zoomable()){
 815                     break;
 816                 }
 817
 818                 if(
 819                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 820                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 821                 ){
 822                     continue;
 823                 }
 824
 825                 this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 826
 827                 this.draw();
 828
 829                 return;
 830             }
 831
 832             this.scale = this.startScale;
 833
 834             this.onRotateFail();
 835
 836             return false;
 837         }
 838
 839         this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 840
 841         if(this.isDocument){
 842             this.setThumbBoxSize();
 843             this.setThumbBoxPosition();
 844             this.setCanvasPosition();
 845         }
 846
 847         this.draw();
 848
 849         this.fireEvent('rotate', this, 'right');
 850     },
 851
 852     onRotateFail : function()
 853     {
 854         this.errorEl.show(true);
 855
 856         var _this = this;
 857
 858         (function() { _this.errorEl.hide(true); }).defer(this.errorTimeout);
 859     },
 860
 861     draw : function()
 862     {
 863         this.previewEl.dom.innerHTML = '';
 864
 865         var canvasEl = document.createElement("canvas");
 866
 867         var contextEl = canvasEl.getContext("2d");
 868
 869         canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 870         canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 871         var center = this.imageEl.OriginWidth / 2;
 872
 873         if(this.imageEl.OriginWidth < this.imageEl.OriginHeight){
 874             canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 875             canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 876             center = this.imageEl.OriginHeight / 2;
 877         }
 878
 879         contextEl.scale(this.getScaleLevel(), this.getScaleLevel());
 880
 881         contextEl.translate(center, center);
 882         contextEl.rotate(this.rotate * Math.PI / 180);
 883
 884         contextEl.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 885
 886         this.canvasEl = document.createElement("canvas");
 887
 888         this.contextEl = this.canvasEl.getContext("2d");
 889
 890         switch (this.rotate) {
 891             case 0 :
 892
 893                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 894                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 895
 896                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 897
 898                 break;
 899             case 90 :
 900
 901                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 902                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 903
 904                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 905                     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);
 906                     break;
 907                 }
 908
 909                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 910
 911                 break;
 912             case 180 :
 913
 914                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 915                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 916
 917                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 918                     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);
 919                     break;
 920                 }
 921
 922                 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);
 923
 924                 break;
 925             case 270 :
 926
 927                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 928                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 929
 930                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 931                     this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 932                     break;
 933                 }
 934
 935                 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);
 936
 937                 break;
 938             default :
 939                 break;
 940         }
 941
 942         this.previewEl.appendChild(this.canvasEl);
 943
 944         this.setCanvasPosition(false);
 945     },
 946
 947     crop : function()
 948     {
 949         if(!this.canvasLoaded){
 950             return;
 951         }
 952
 953         var imageCanvas = document.createElement("canvas");
 954
 955         var imageContext = imageCanvas.getContext("2d");
 956
 957         imageCanvas.width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 958         imageCanvas.height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 959
 960         var center = imageCanvas.width / 2;
 961
 962         imageContext.translate(center, center);
 963
 964         imageContext.rotate(this.rotate * Math.PI / 180);
 965
 966         imageContext.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 967
 968         var canvas = document.createElement("canvas");
 969
 970         var context = canvas.getContext("2d");
 971
 972         canvas.width = this.thumbEl.getWidth() / this.getScaleLevel();
 973
 974         canvas.height = this.thumbEl.getHeight() / this.getScaleLevel();
 975
 976         switch (this.rotate) {
 977             case 0 :
 978
 979                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 980                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 981
 982                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
 983                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
 984
 985                 var sx = this.thumbEl.getLeft(true) - this.previewEl.getLeft(true);
 986                 var sy = this.thumbEl.getTop(true) - this.previewEl.getTop(true);
 987
 988                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
 989                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 990
 991                 if(canvas.width > this.outputMaxWidth) {
 992                     var scale = this.outputMaxWidth / canvas.width;
 993                     canvas.width = canvas.width * scale;
 994                     canvas.height = canvas.height * scale;
 995                     context.scale(scale, scale);
 996                 }
 997
 998                 context.fillStyle = 'white';
 999                 context.fillRect(0, 0, this.thumbEl.getWidth() / this.getScaleLevel(), this.thumbEl.getHeight() / this.getScaleLevel());
1000
1001
1002                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1003
1004                 break;
1005             case 90 :
1006
1007                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
1008                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
1009
1010                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1011                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1012
1013                 var targetWidth = this.minWidth - 2 * x;
1014                 var targetHeight = this.minHeight - 2 * y;
1015
1016                 var scale = 1;
1017
1018                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1019                     scale = targetWidth / width;
1020                 }
1021
1022                 if(x > 0 && y == 0){
1023                     scale = targetHeight / height;
1024                 }
1025
1026                 if(x > 0 && y > 0){
1027                     scale = targetWidth / width;
1028
1029                     if(width < height){
1030                         scale = targetHeight / height;
1031                     }
1032                 }
1033
1034                 context.scale(scale, scale);
1035
1036                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1037                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1038
1039                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1040                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1041
1042                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
1043
1044                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1045
1046                 break;
1047             case 180 :
1048
1049                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
1050                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
1051
1052                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1053                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1054
1055                 var targetWidth = this.minWidth - 2 * x;
1056                 var targetHeight = this.minHeight - 2 * y;
1057
1058                 var scale = 1;
1059
1060                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1061                     scale = targetWidth / width;
1062                 }
1063
1064                 if(x > 0 && y == 0){
1065                     scale = targetHeight / height;
1066                 }
1067
1068                 if(x > 0 && y > 0){
1069                     scale = targetWidth / width;
1070
1071                     if(width < height){
1072                         scale = targetHeight / height;
1073                     }
1074                 }
1075
1076                 context.scale(scale, scale);
1077
1078                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1079                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1080
1081                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1082                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1083
1084                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1085                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
1086
1087                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1088
1089                 break;
1090             case 270 :
1091
1092                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
1093                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
1094
1095                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1096                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1097
1098                 var targetWidth = this.minWidth - 2 * x;
1099                 var targetHeight = this.minHeight - 2 * y;
1100
1101                 var scale = 1;
1102
1103                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1104                     scale = targetWidth / width;
1105                 }
1106
1107                 if(x > 0 && y == 0){
1108                     scale = targetHeight / height;
1109                 }
1110
1111                 if(x > 0 && y > 0){
1112                     scale = targetWidth / width;
1113
1114                     if(width < height){
1115                         scale = targetHeight / height;
1116                     }
1117                 }
1118
1119                 context.scale(scale, scale);
1120                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1121                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1122
1123                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1124                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1125
1126                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1127
1128                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1129
1130                 break;
1131             default :
1132                 break;
1133         }
1134
1135         this.cropData = canvas.toDataURL(this.cropType);
1136
1137         if(this.fireEvent('crop', this, this.cropData) !== false){
1138             this.process(this.file, this.cropData);
1139         }
1140
1141         return;
1142
1143     },
1144
1145     setThumbBoxSize : function()
1146     {
1147         var width, height;
1148
1149         if(this.isDocument && typeof(this.imageEl) != 'undefined'){
1150             width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.max(this.minWidth, this.minHeight) : Math.min(this.minWidth, this.minHeight);
1151             height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.min(this.minWidth, this.minHeight) : Math.max(this.minWidth, this.minHeight);
1152
1153             this.minWidth = width;
1154             this.minHeight = height;
1155
1156             if(this.rotate == 90 || this.rotate == 270){
1157                 this.minWidth = height;
1158                 this.minHeight = width;
1159             }
1160         }
1161
1162         height = this.windowSize;
1163         width = Math.ceil(this.minWidth * height / this.minHeight);
1164
1165         if(this.minWidth > this.minHeight){
1166             width = this.windowSize;
1167             height = Math.ceil(this.minHeight * width / this.minWidth);
1168         }
1169
1170         this.thumbEl.setStyle({
1171             width : width + 'px',
1172             height : height + 'px'
1173         });
1174
1175         return;
1176
1177     },
1178
1179     setThumbBoxPosition : function()
1180     {
1181         var x = Math.ceil((this.bodyEl.getWidth() - this.thumbEl.getWidth()) / 2 );
1182         var y = Math.ceil((this.bodyEl.getHeight() - this.thumbEl.getHeight()) / 2);
1183
1184         this.thumbEl.setLeft(x);
1185         this.thumbEl.setTop(y);
1186
1187     },
1188
1189     baseRotateLevel : function()
1190     {
1191         this.baseRotate = 1;
1192
1193         if(
1194                 typeof(this.exif) != 'undefined' &&
1195                 typeof(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != 'undefined' &&
1196                 [1, 3, 6, 8].indexOf(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != -1
1197         ){
1198             this.baseRotate = this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']];
1199         }
1200
1201         this.rotate = Roo.dialog.UploadCropbox['Orientation'][this.baseRotate];
1202
1203     },
1204
1205     baseScaleLevel : function()
1206     {
1207         var width, height;
1208
1209         if(this.isDocument){
1210
1211             if(this.baseRotate == 6 || this.baseRotate == 8){
1212
1213                 height = this.thumbEl.getHeight();
1214                 this.baseScale = height / this.imageEl.OriginWidth;
1215
1216                 if(this.imageEl.OriginHeight * this.baseScale > this.thumbEl.getWidth()){
1217                     width = this.thumbEl.getWidth();
1218                     this.baseScale = width / this.imageEl.OriginHeight;
1219                 }
1220
1221                 return;
1222             }
1223
1224             height = this.thumbEl.getHeight();
1225             this.baseScale = height / this.imageEl.OriginHeight;
1226
1227             if(this.imageEl.OriginWidth * this.baseScale > this.thumbEl.getWidth()){
1228                 width = this.thumbEl.getWidth();
1229                 this.baseScale = width / this.imageEl.OriginWidth;
1230             }
1231
1232             return;
1233         }
1234
1235         if(this.baseRotate == 6 || this.baseRotate == 8){
1236
1237             width = this.thumbEl.getHeight();
1238             this.baseScale = width / this.imageEl.OriginHeight;
1239
1240             if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getWidth()){
1241                 height = this.thumbEl.getWidth();
1242                 this.baseScale = height / this.imageEl.OriginHeight;
1243             }
1244
1245             if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1246                 height = this.thumbEl.getWidth();
1247                 this.baseScale = height / this.imageEl.OriginHeight;
1248
1249                 if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getHeight()){
1250                     width = this.thumbEl.getHeight();
1251                     this.baseScale = width / this.imageEl.OriginWidth;
1252                 }
1253             }
1254
1255             return;
1256         }
1257
1258         width = this.thumbEl.getWidth();
1259         this.baseScale = width / this.imageEl.OriginWidth;
1260
1261         if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getHeight()){
1262             height = this.thumbEl.getHeight();
1263             this.baseScale = height / this.imageEl.OriginHeight;
1264         }
1265
1266         if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1267
1268             height = this.thumbEl.getHeight();
1269             this.baseScale = height / this.imageEl.OriginHeight;
1270
1271             if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getWidth()){
1272                 width = this.thumbEl.getWidth();
1273                 this.baseScale = width / this.imageEl.OriginWidth;
1274             }
1275
1276         }
1277
1278         if(this.imageEl.OriginWidth < this.minWidth || this.imageEl.OriginHeight < this.minHeight) {
1279             this.baseScale = width / this.minWidth;
1280         }
1281
1282         return;
1283     },
1284
1285     getScaleLevel : function()
1286     {
1287         return this.baseScale * Math.pow(1.02, this.scale);
1288     },
1289
1290     onTouchStart : function(e)
1291     {
1292         if(!this.canvasLoaded){
1293             this.beforeSelectFile(e);
1294             return;
1295         }
1296
1297         var touches = e.browserEvent.touches;
1298
1299         if(!touches){
1300             return;
1301         }
1302
1303         if(touches.length == 1){
1304             this.onMouseDown(e);
1305             return;
1306         }
1307
1308         if(touches.length != 2){
1309             return;
1310         }
1311
1312         var coords = [];
1313
1314         for(var i = 0, finger; finger = touches[i]; i++){
1315             coords.push(finger.pageX, finger.pageY);
1316         }
1317
1318         var x = Math.pow(coords[0] - coords[2], 2);
1319         var y = Math.pow(coords[1] - coords[3], 2);
1320
1321         this.startDistance = Math.sqrt(x + y);
1322
1323         this.startScale = this.scale;
1324
1325         this.pinching = true;
1326         this.dragable = false;
1327
1328     },
1329
1330     onTouchMove : function(e)
1331     {
1332         if(!this.pinching && !this.dragable){
1333             return;
1334         }
1335
1336         var touches = e.browserEvent.touches;
1337
1338         if(!touches){
1339             return;
1340         }
1341
1342         if(this.dragable){
1343             this.onMouseMove(e);
1344             return;
1345         }
1346
1347         var coords = [];
1348
1349         for(var i = 0, finger; finger = touches[i]; i++){
1350             coords.push(finger.pageX, finger.pageY);
1351         }
1352
1353         var x = Math.pow(coords[0] - coords[2], 2);
1354         var y = Math.pow(coords[1] - coords[3], 2);
1355
1356         this.endDistance = Math.sqrt(x + y);
1357
1358         this.scale = this.startScale + Math.floor(Math.log(this.endDistance / this.startDistance) / Math.log(1.1));
1359
1360         if(!this.zoomable()){
1361             this.scale = this.startScale;
1362             return;
1363         }
1364
1365         this.draw();
1366
1367     },
1368
1369     onTouchEnd : function(e)
1370     {
1371         this.pinching = false;
1372         this.dragable = false;
1373
1374     },
1375
1376     process : function(file, crop)
1377     {
1378         if(this.loadMask){
1379             this.maskEl.mask(this.loadingText);
1380         }
1381
1382         this.xhr = new XMLHttpRequest();
1383
1384         file.xhr = this.xhr;
1385
1386         this.xhr.open(this.method, this.url, true);
1387
1388         var headers = {
1389             "Accept": "application/json",
1390             "Cache-Control": "no-cache",
1391             "X-Requested-With": "XMLHttpRequest"
1392         };
1393
1394         for (var headerName in headers) {
1395             var headerValue = headers[headerName];
1396             if (headerValue) {
1397                 this.xhr.setRequestHeader(headerName, headerValue);
1398             }
1399         }
1400
1401         var _this = this;
1402
1403         this.xhr.onload = function()
1404         {
1405             _this.xhrOnLoad(_this.xhr);
1406         }
1407
1408         this.xhr.onerror = function()
1409         {
1410             _this.xhrOnError(_this.xhr);
1411         }
1412
1413         var formData = new FormData();
1414
1415         formData.append('returnHTML', 'NO');
1416
1417         if(crop){
1418             formData.append('crop', crop);
1419             var blobBin = atob(crop.split(',')[1]);
1420             var array = [];
1421             for(var i = 0; i < blobBin.length; i++) {
1422                 array.push(blobBin.charCodeAt(i));
1423             }
1424             var croppedFile =new Blob([new Uint8Array(array)], {type: this.cropType});
1425             formData.append(this.paramName, croppedFile, file.name);
1426         }
1427
1428         if(typeof(file.filename) != 'undefined'){
1429             formData.append('filename', file.filename);
1430         }
1431
1432         if(typeof(file.mimetype) != 'undefined'){
1433             formData.append('mimetype', file.mimetype);
1434         }
1435
1436         if(this.fireEvent('arrange', this, formData) != false){
1437             this.xhr.send(formData);
1438         };
1439     },
1440
1441     xhrOnLoad : function(xhr)
1442     {
1443         if(this.loadMask){
1444             this.maskEl.unmask();
1445         }
1446
1447         if (xhr.readyState !== 4) {
1448             this.fireEvent('exception', this, xhr);
1449             return;
1450         }
1451
1452         var response = Roo.decode(xhr.responseText);
1453
1454         if(!response.success){
1455             this.fireEvent('exception', this, xhr);
1456             return;
1457         }
1458
1459         var response = Roo.decode(xhr.responseText);
1460
1461         this.fireEvent('upload', this, response);
1462
1463     },
1464
1465     xhrOnError : function()
1466     {
1467         if(this.loadMask){
1468             this.maskEl.unmask();
1469         }
1470
1471         Roo.log('xhr on error');
1472
1473         var response = Roo.decode(xhr.responseText);
1474
1475         Roo.log(response);
1476
1477     },
1478
1479     prepare : function(file)
1480     {
1481         if(this.loadMask){
1482             this.maskEl.mask(this.loadingText);
1483         }
1484
1485         this.file = false;
1486         this.exif = {};
1487
1488         if(typeof(file) === 'string'){
1489             this.loadCanvas(file);
1490             return;
1491         }
1492
1493         if(!file || !this.urlAPI){
1494             return;
1495         }
1496
1497         this.file = file;
1498         if(typeof(file.type) != 'undefined' && file.type.length != 0) {
1499             this.cropType = file.type;
1500         }
1501
1502         var _this = this;
1503
1504         if(this.fireEvent('prepare', this, this.file) != false){
1505
1506             var reader = new FileReader();
1507
1508             reader.onload = function (e) {
1509                 if (e.target.error) {
1510                     Roo.log(e.target.error);
1511                     return;
1512                 }
1513
1514                 var buffer = e.target.result,
1515                     dataView = new DataView(buffer),
1516                     offset = 2,
1517                     maxOffset = dataView.byteLength - 4,
1518                     markerBytes,
1519                     markerLength;
1520
1521                 if (dataView.getUint16(0) === 0xffd8) {
1522                     while (offset < maxOffset) {
1523                         markerBytes = dataView.getUint16(offset);
1524
1525                         if ((markerBytes >= 0xffe0 && markerBytes <= 0xffef) || markerBytes === 0xfffe) {
1526                             markerLength = dataView.getUint16(offset + 2) + 2;
1527                             if (offset + markerLength > dataView.byteLength) {
1528                                 Roo.log('Invalid meta data: Invalid segment size.');
1529                                 break;
1530                             }
1531
1532                             if(markerBytes == 0xffe1){
1533                                 _this.parseExifData(
1534                                     dataView,
1535                                     offset,
1536                                     markerLength
1537                                 );
1538                             }
1539
1540                             offset += markerLength;
1541
1542                             continue;
1543                         }
1544
1545                         break;
1546                     }
1547
1548                 }
1549
1550                 var url = _this.urlAPI.createObjectURL(_this.file);
1551
1552                 _this.loadCanvas(url);
1553
1554                 return;
1555             }
1556
1557             reader.readAsArrayBuffer(this.file);
1558
1559         }
1560
1561     },
1562
1563     parseExifData : function(dataView, offset, length)
1564     {
1565         var tiffOffset = offset + 10,
1566             littleEndian,
1567             dirOffset;
1568
1569         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1570             // No Exif data, might be XMP data instead
1571             return;
1572         }
1573
1574         // Check for the ASCII code for "Exif" (0x45786966):
1575         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1576             // No Exif data, might be XMP data instead
1577             return;
1578         }
1579         if (tiffOffset + 8 > dataView.byteLength) {
1580             Roo.log('Invalid Exif data: Invalid segment size.');
1581             return;
1582         }
1583         // Check for the two null bytes:
1584         if (dataView.getUint16(offset + 8) !== 0x0000) {
1585             Roo.log('Invalid Exif data: Missing byte alignment offset.');
1586             return;
1587         }
1588         // Check the byte alignment:
1589         switch (dataView.getUint16(tiffOffset)) {
1590         case 0x4949:
1591             littleEndian = true;
1592             break;
1593         case 0x4D4D:
1594             littleEndian = false;
1595             break;
1596         default:
1597             Roo.log('Invalid Exif data: Invalid byte alignment marker.');
1598             return;
1599         }
1600         // Check for the TIFF tag marker (0x002A):
1601         if (dataView.getUint16(tiffOffset + 2, littleEndian) !== 0x002A) {
1602             Roo.log('Invalid Exif data: Missing TIFF marker.');
1603             return;
1604         }
1605         // Retrieve the directory offset bytes, usually 0x00000008 or 8 decimal:
1606         dirOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
1607
1608         this.parseExifTags(
1609             dataView,
1610             tiffOffset,
1611             tiffOffset + dirOffset,
1612             littleEndian
1613         );
1614     },
1615
1616     parseExifTags : function(dataView, tiffOffset, dirOffset, littleEndian)
1617     {
1618         var tagsNumber,
1619             dirEndOffset,
1620             i;
1621         if (dirOffset + 6 > dataView.byteLength) {
1622             Roo.log('Invalid Exif data: Invalid directory offset.');
1623             return;
1624         }
1625         tagsNumber = dataView.getUint16(dirOffset, littleEndian);
1626         dirEndOffset = dirOffset + 2 + 12 * tagsNumber;
1627         if (dirEndOffset + 4 > dataView.byteLength) {
1628             Roo.log('Invalid Exif data: Invalid directory size.');
1629             return;
1630         }
1631         for (i = 0; i < tagsNumber; i += 1) {
1632             this.parseExifTag(
1633                 dataView,
1634                 tiffOffset,
1635                 dirOffset + 2 + 12 * i, // tag offset
1636                 littleEndian
1637             );
1638         }
1639         // Return the offset to the next directory:
1640         return dataView.getUint32(dirEndOffset, littleEndian);
1641     },
1642
1643     parseExifTag : function (dataView, tiffOffset, offset, littleEndian)
1644     {
1645         var tag = dataView.getUint16(offset, littleEndian);
1646
1647         this.exif[tag] = this.getExifValue(
1648             dataView,
1649             tiffOffset,
1650             offset,
1651             dataView.getUint16(offset + 2, littleEndian), // tag type
1652             dataView.getUint32(offset + 4, littleEndian), // tag length
1653             littleEndian
1654         );
1655     },
1656
1657     getExifValue : function (dataView, tiffOffset, offset, type, length, littleEndian)
1658     {
1659         var tagType = Roo.dialog.UploadCropbox.exifTagTypes[type],
1660             tagSize,
1661             dataOffset,
1662             values,
1663             i,
1664             str,
1665             c;
1666
1667         if (!tagType) {
1668             Roo.log('Invalid Exif data: Invalid tag type.');
1669             return;
1670         }
1671
1672         tagSize = tagType.size * length;
1673         // Determine if the value is contained in the dataOffset bytes,
1674         // or if the value at the dataOffset is a pointer to the actual data:
1675         dataOffset = tagSize > 4 ?
1676                 tiffOffset + dataView.getUint32(offset + 8, littleEndian) : (offset + 8);
1677         if (dataOffset + tagSize > dataView.byteLength) {
1678             Roo.log('Invalid Exif data: Invalid data offset.');
1679             return;
1680         }
1681         if (length === 1) {
1682             return tagType.getValue(dataView, dataOffset, littleEndian);
1683         }
1684         values = [];
1685         for (i = 0; i < length; i += 1) {
1686             values[i] = tagType.getValue(dataView, dataOffset + i * tagType.size, littleEndian);
1687         }
1688
1689         if (tagType.ascii) {
1690             str = '';
1691             // Concatenate the chars:
1692             for (i = 0; i < values.length; i += 1) {
1693                 c = values[i];
1694                 // Ignore the terminating NULL byte(s):
1695                 if (c === '\u0000') {
1696                     break;
1697                 }
1698                 str += c;
1699             }
1700             return str;
1701         }
1702         return values;
1703     }
1704
1705 });
1706
1707 Roo.apply(Roo.dialog.UploadCropbox, {
1708     tags : {
1709         'Orientation': 0x0112
1710     },
1711
1712     Orientation: {
1713             1: 0, //'top-left',
1714 //            2: 'top-right',
1715             3: 180, //'bottom-right',
1716 //            4: 'bottom-left',
1717 //            5: 'left-top',
1718             6: 90, //'right-top',
1719 //            7: 'right-bottom',
1720             8: 270 //'left-bottom'
1721     },
1722
1723     exifTagTypes : {
1724         // byte, 8-bit unsigned int:
1725         1: {
1726             getValue: function (dataView, dataOffset) {
1727                 return dataView.getUint8(dataOffset);
1728             },
1729             size: 1
1730         },
1731         // ascii, 8-bit byte:
1732         2: {
1733             getValue: function (dataView, dataOffset) {
1734                 return String.fromCharCode(dataView.getUint8(dataOffset));
1735             },
1736             size: 1,
1737             ascii: true
1738         },
1739         // short, 16 bit int:
1740         3: {
1741             getValue: function (dataView, dataOffset, littleEndian) {
1742                 return dataView.getUint16(dataOffset, littleEndian);
1743             },
1744             size: 2
1745         },
1746         // long, 32 bit int:
1747         4: {
1748             getValue: function (dataView, dataOffset, littleEndian) {
1749                 return dataView.getUint32(dataOffset, littleEndian);
1750             },
1751             size: 4
1752         },
1753         // rational = two long values, first is numerator, second is denominator:
1754         5: {
1755             getValue: function (dataView, dataOffset, littleEndian) {
1756                 return dataView.getUint32(dataOffset, littleEndian) /
1757                     dataView.getUint32(dataOffset + 4, littleEndian);
1758             },
1759             size: 8
1760         },
1761         // slong, 32 bit signed int:
1762         9: {
1763             getValue: function (dataView, dataOffset, littleEndian) {
1764                 return dataView.getInt32(dataOffset, littleEndian);
1765             },
1766             size: 4
1767         },
1768         // srational, two slongs, first is numerator, second is denominator:
1769         10: {
1770             getValue: function (dataView, dataOffset, littleEndian) {
1771                 return dataView.getInt32(dataOffset, littleEndian) /
1772                     dataView.getInt32(dataOffset + 4, littleEndian);
1773             },
1774             size: 8
1775         }
1776     },
1777
1778     footer : {
1779         STANDARD : [
1780             {
1781                 tag : 'div',
1782                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1783                 action : 'rotate-left',
1784                 cn : [
1785                     {
1786                         tag : 'button',
1787                         cls : 'btn btn-default',
1788                         html : '<i class="fa fa-undo"></i>'
1789                     }
1790                 ]
1791             },
1792             {
1793                 tag : 'div',
1794                 cls : 'btn-group roo-upload-cropbox-picture',
1795                 action : 'picture',
1796                 cn : [
1797                     {
1798                         tag : 'button',
1799                         cls : 'btn btn-default',
1800                         html : '<i class="fa fa-picture-o"></i>'
1801                     }
1802                 ]
1803             },
1804             {
1805                 tag : 'div',
1806                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1807                 action : 'rotate-right',
1808                 cn : [
1809                     {
1810                         tag : 'button',
1811                         cls : 'btn btn-default',
1812                         html : '<i class="fa fa-repeat"></i>'
1813                     }
1814                 ]
1815             }
1816         ],
1817         DOCUMENT : [
1818             {
1819                 tag : 'div',
1820                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1821                 action : 'rotate-left',
1822                 cn : [
1823                     {
1824                         tag : 'button',
1825                         cls : 'btn btn-default',
1826                         html : '<i class="fa fa-undo"></i>'
1827                     }
1828                 ]
1829             },
1830             {
1831                 tag : 'div',
1832                 cls : 'btn-group roo-upload-cropbox-download',
1833                 action : 'download',
1834                 cn : [
1835                     {
1836                         tag : 'button',
1837                         cls : 'btn btn-default',
1838                         html : '<i class="fa fa-download"></i>'
1839                     }
1840                 ]
1841             },
1842             {
1843                 tag : 'div',
1844                 cls : 'btn-group roo-upload-cropbox-crop',
1845                 action : 'crop',
1846                 cn : [
1847                     {
1848                         tag : 'button',
1849                         cls : 'btn btn-default',
1850                         html : '<i class="fa fa-crop"></i>'
1851                     }
1852                 ]
1853             },
1854             {
1855                 tag : 'div',
1856                 cls : 'btn-group roo-upload-cropbox-trash',
1857                 action : 'trash',
1858                 cn : [
1859                     {
1860                         tag : 'button',
1861                         cls : 'btn btn-default',
1862                         html : '<i class="fa fa-trash"></i>'
1863                     }
1864                 ]
1865             },
1866             {
1867                 tag : 'div',
1868                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1869                 action : 'rotate-right',
1870                 cn : [
1871                     {
1872                         tag : 'button',
1873                         cls : 'btn btn-default',
1874                         html : '<i class="fa fa-repeat"></i>'
1875                     }
1876                 ]
1877             }
1878         ],
1879         ROTATOR : [
1880             {
1881                 tag : 'div',
1882                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1883                 action : 'rotate-left',
1884                 cn : [
1885                     {
1886                         tag : 'button',
1887                         cls : 'btn btn-default',
1888                         html : '<i class="fa fa-undo"></i>'
1889                     }
1890                 ]
1891             },
1892             {
1893                 tag : 'div',
1894                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1895                 action : 'rotate-right',
1896                 cn : [
1897                     {
1898                         tag : 'button',
1899                         cls : 'btn btn-default',
1900                         html : '<i class="fa fa-repeat"></i>'
1901                     }
1902                 ]
1903             }
1904         ],
1905         CENTER : [
1906             {
1907                 tag : 'div',
1908                 cls : 'btn-group roo-upload-cropbox-center',
1909                 action : 'center',
1910                 cn : [
1911                     {
1912                         tag : 'button',
1913                         cls : 'btn btn-default',
1914                         html : 'CENTER'
1915                     }
1916                 ]
1917             }
1918         ]
1919     }
1920 });