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 maxPaddingLeft = this.canvasEl.width > this.canvasEl.height ? this.canvasEl.width * 0.05 : this.canvasEl.height * 0.05;
 557         var maxPaddingHeight = this.canvasEl.width > this.canvasEl.height ? this.canvasEl.width * 0.05 : this.canvasEl.height * 0.05;
 558
 559         if ((this.imageEl.OriginWidth / this.imageEl.OriginHeight <= this.minWidth / this.minHeight)) {
 560             maxPaddingLeft = (this.canvasEl.height * this.minWidth / this.minHeight - this.canvasEl.width) / 2 + maxPaddingTop;
 561         }
 562
 563         if ((this.imageEl.OriginWidth / this.imageEl.OriginHeight >= this.minWidth / this.minHeight)) {
 564             maxPaddingTop = (this.canvasEl.width * this.minHeight / this.minWidth - this.canvasEl.height) / 2 + maxPaddingLeft;
 565         }
 566
 567         Roo.log("+++++++++++++++++++++++");
 568
 569         Roo.log("max padding left: " + maxPaddingLeft);
 570         Roo.log("max padding top: " + maxPaddingTop);
 571
 572
 573
 574         var minX = Math.ceil(this.thumbEl.getLeft(true));
 575         var minY = Math.ceil(this.thumbEl.getTop(true));
 576
 577         var maxX = Math.ceil(minX + this.thumbEl.getWidth() - this.canvasEl.width);
 578         var maxY = Math.ceil(minY + this.thumbEl.getHeight() - this.canvasEl.height);
 579
 580         if(minX > maxX) {
 581             var tempX = minX;
 582             minX = maxX;
 583             maxX = tempX;
 584         }
 585
 586         if(minY > maxY) {
 587             var tempY = minY;
 588             minY = maxY;
 589             maxY = tempY;
 590         }
 591
 592         var x = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 593         var y = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 594
 595         x = x - this.mouseX;
 596         y = y - this.mouseY;
 597
 598         var bgX = Math.ceil(x + this.previewEl.getLeft(true));
 599         var bgY = Math.ceil(y + this.previewEl.getTop(true));
 600
 601         bgX = (bgX < minX) ? minX : ((bgX > maxX) ? maxX : bgX);
 602         bgY = (bgY < minY) ? minY : ((bgY > maxY) ? maxY : bgY);
 603
 604         this.previewEl.setLeft(bgX);
 605         this.previewEl.setTop(bgY);
 606
 607         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 608         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 609     },
 610
 611     onMouseUp : function(e)
 612     {
 613         e.stopEvent();
 614
 615         this.dragable = false;
 616     },
 617
 618     onMouseWheel : function(e)
 619     {
 620         e.stopEvent();
 621
 622         this.startScale = this.scale;
 623         this.scale = (e.getWheelDelta() > 0) ? (this.scale + 1) : (this.scale - 1);
 624
 625         if(!this.zoomable()){
 626             this.scale = this.startScale;
 627             return;
 628         }
 629
 630
 631         this.draw();
 632
 633         return;
 634     },
 635
 636     zoomable : function()
 637     {
 638         var minScale = this.thumbEl.getWidth() / this.minWidth;
 639
 640         if(this.minWidth < this.minHeight){
 641             minScale = this.thumbEl.getHeight() / this.minHeight;
 642         }
 643
 644         var width = Math.ceil(this.imageEl.OriginWidth * this.getScaleLevel() / minScale);
 645         var height = Math.ceil(this.imageEl.OriginHeight * this.getScaleLevel() / minScale);
 646
 647         var maxWidth = this.imageEl.OriginWidth;
 648         var maxHeight = this.imageEl.OriginHeight;
 649
 650
 651         var newCanvasWidth = Math.floor(this.imageEl.OriginWidth * this.getScaleLevel());
 652         var newCanvasHeight = Math.floor(this.imageEl.OriginHeight * this.getScaleLevel());
 653
 654         var oldCenterLeft = Math.ceil((this.bodyEl.getWidth() - this.canvasEl.width) / 2);
 655         var oldCenterTop = Math.ceil((this.bodyEl.getHeight() - this.canvasEl.height) / 2);
 656
 657         var newCenterLeft = Math.ceil((this.bodyEl.getWidth() - newCanvasWidth) / 2);
 658         var newCenterTop = Math.ceil((this.bodyEl.getHeight() - newCanvasHeight) / 2);
 659
 660         var leftDiff = newCenterLeft - oldCenterLeft;
 661         var topDiff = newCenterTop - oldCenterTop;
 662
 663         var newPreviewLeft = this.previewEl.getLeft(true) + leftDiff;
 664         var newPreviewTop = this.previewEl.getTop(true) + topDiff;
 665
 666         var paddingLeft = newPreviewLeft - this.thumbEl.getLeft(true);
 667         var paddingTop = newPreviewTop - this.thumbEl.getTop(true);
 668
 669         var paddingRight = this.thumbEl.getLeft(true) + this.thumbEl.getWidth() - newCanvasWidth - newPreviewLeft;
 670         var paddingBottom = this.thumbEl.getTop(true) + this.thumbEl.getHeight() - newCanvasHeight - newPreviewTop;
 671
 672         var maxPaddingLeft = newCanvasWidth > newCanvasHeight ? newCanvasWidth * 0.05 : newCanvasHeight * 0.05;
 673         var maxPaddingTop = newCanvasWidth > newCanvasHeight ? newCanvasWidth * 0.05 : newCanvasHeight * 0.05;
 674
 675         if ((this.imageEl.OriginWidth / this.imageEl.OriginHeight <= this.minWidth / this.minHeight)) {
 676             maxPaddingLeft = (newCanvasHeight * this.minWidth / this.minHeight - newCanvasWidth) / 2 + maxPaddingTop;
 677         }
 678
 679         if ((this.imageEl.OriginWidth / this.imageEl.OriginHeight >= this.minWidth / this.minHeight)) {
 680             maxPaddingTop = (newCanvasWidth * this.minHeight / this.minWidth - newCanvasHeight) / 2 + maxPaddingLeft;
 681         }
 682
 683         Roo.log("=================================");
 684         Roo.log("old canvas width: " + this.canvasEl.width);
 685         Roo.log("old canvas height: " + this.canvasEl.height);
 686
 687         Roo.log("new canvas width: " + newCanvasWidth);
 688         Roo.log("new canvas height: " + newCanvasHeight);
 689
 690         Roo.log("old preview left: " + this.previewEl.getLeft(true));
 691         Roo.log("old preview top: " + this.previewEl.getTop(true));
 692
 693         Roo.log("new preview left: " + newPreviewLeft);
 694         Roo.log("new preview top: " + newPreviewTop);
 695
 696         Roo.log("padding left: " + paddingLeft);
 697         Roo.log("padding top: " + paddingTop);
 698
 699         Roo.log("padding right: " + paddingRight);
 700         Roo.log("padding bottom: " + paddingBottom);
 701
 702         Roo.log("max padding left: " + maxPaddingLeft);
 703         Roo.log("max padding top: " + maxPaddingTop);
 704
 705         if(
 706                 this.isDocument &&
 707                 (this.rotate == 0 || this.rotate == 180) &&
 708                 (
 709                     width > this.imageEl.OriginWidth ||
 710                     height > this.imageEl.OriginHeight ||
 711                     (width < this.minWidth && height < this.minHeight)
 712                 )
 713         ){
 714             return false;
 715         }
 716
 717         if(
 718                 this.isDocument &&
 719                 (this.rotate == 90 || this.rotate == 270) &&
 720                 (
 721                     width > this.imageEl.OriginWidth ||
 722                     height > this.imageEl.OriginHeight ||
 723                     (width < this.minHeight && height < this.minWidth)
 724                 )
 725         ){
 726             return false;
 727         }
 728
 729         if(
 730                 !this.isDocument &&
 731                 (this.rotate == 0 || this.rotate == 180) &&
 732                 (
 733                     // for zoom out
 734                     paddingLeft > maxPaddingLeft ||
 735                     paddingRight > maxPaddingLeft ||
 736                     paddingTop > maxPaddingTop ||
 737                     paddingBottom > maxPaddingTop ||
 738                     // for zoom in
 739                     width > maxWidth ||
 740                     height > maxHeight
 741                 )
 742         ){
 743             return false;
 744         }
 745
 746         if(
 747                 !this.isDocument &&
 748                 (this.rotate == 90 || this.rotate == 270) &&
 749                 (
 750                     width < this.minHeight ||
 751                     width > this.imageEl.OriginWidth ||
 752                     height < this.minWidth ||
 753                     height > this.imageEl.OriginHeight
 754                 )
 755         ){
 756             return false;
 757         }
 758
 759         return true;
 760
 761     },
 762
 763     onRotateLeft : function(e)
 764     {
 765         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 766
 767             var minScale = this.thumbEl.getWidth() / this.minWidth;
 768
 769             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 770             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 771
 772             this.startScale = this.scale;
 773
 774             while (this.getScaleLevel() < minScale){
 775
 776                 this.scale = this.scale + 1;
 777
 778                 if(!this.zoomable()){
 779                     break;
 780                 }
 781
 782                 if(
 783                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 784                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 785                 ){
 786                     continue;
 787                 }
 788
 789                 this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 790
 791                 this.draw();
 792
 793                 return;
 794             }
 795
 796             this.scale = this.startScale;
 797
 798             this.onRotateFail();
 799
 800             return false;
 801         }
 802
 803         this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 804
 805         if(this.isDocument){
 806             this.setThumbBoxSize();
 807             this.setThumbBoxPosition();
 808             this.setCanvasPosition();
 809         }
 810
 811         this.draw();
 812
 813         this.fireEvent('rotate', this, 'left');
 814
 815     },
 816
 817     onRotateRight : function(e)
 818     {
 819         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 820
 821             var minScale = this.thumbEl.getWidth() / this.minWidth;
 822
 823             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 824             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 825
 826             this.startScale = this.scale;
 827
 828             while (this.getScaleLevel() < minScale){
 829
 830                 this.scale = this.scale + 1;
 831
 832                 if(!this.zoomable()){
 833                     break;
 834                 }
 835
 836                 if(
 837                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 838                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 839                 ){
 840                     continue;
 841                 }
 842
 843                 this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 844
 845                 this.draw();
 846
 847                 return;
 848             }
 849
 850             this.scale = this.startScale;
 851
 852             this.onRotateFail();
 853
 854             return false;
 855         }
 856
 857         this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 858
 859         if(this.isDocument){
 860             this.setThumbBoxSize();
 861             this.setThumbBoxPosition();
 862             this.setCanvasPosition();
 863         }
 864
 865         this.draw();
 866
 867         this.fireEvent('rotate', this, 'right');
 868     },
 869
 870     onRotateFail : function()
 871     {
 872         this.errorEl.show(true);
 873
 874         var _this = this;
 875
 876         (function() { _this.errorEl.hide(true); }).defer(this.errorTimeout);
 877     },
 878
 879     draw : function()
 880     {
 881         this.previewEl.dom.innerHTML = '';
 882
 883         var canvasEl = document.createElement("canvas");
 884
 885         var contextEl = canvasEl.getContext("2d");
 886
 887         canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 888         canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 889         var center = this.imageEl.OriginWidth / 2;
 890
 891         if(this.imageEl.OriginWidth < this.imageEl.OriginHeight){
 892             canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 893             canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 894             center = this.imageEl.OriginHeight / 2;
 895         }
 896
 897         contextEl.scale(this.getScaleLevel(), this.getScaleLevel());
 898
 899         contextEl.translate(center, center);
 900         contextEl.rotate(this.rotate * Math.PI / 180);
 901
 902         contextEl.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 903
 904         this.canvasEl = document.createElement("canvas");
 905
 906         this.contextEl = this.canvasEl.getContext("2d");
 907
 908         switch (this.rotate) {
 909             case 0 :
 910
 911                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 912                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 913
 914                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 915
 916                 break;
 917             case 90 :
 918
 919                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 920                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 921
 922                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 923                     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);
 924                     break;
 925                 }
 926
 927                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 928
 929                 break;
 930             case 180 :
 931
 932                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 933                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 934
 935                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 936                     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);
 937                     break;
 938                 }
 939
 940                 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);
 941
 942                 break;
 943             case 270 :
 944
 945                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 946                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 947
 948                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 949                     this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 950                     break;
 951                 }
 952
 953                 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);
 954
 955                 break;
 956             default :
 957                 break;
 958         }
 959
 960         this.previewEl.appendChild(this.canvasEl);
 961
 962         this.setCanvasPosition(false);
 963     },
 964
 965     crop : function()
 966     {
 967         if(!this.canvasLoaded){
 968             return;
 969         }
 970
 971         var imageCanvas = document.createElement("canvas");
 972
 973         var imageContext = imageCanvas.getContext("2d");
 974
 975         imageCanvas.width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 976         imageCanvas.height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 977
 978         var center = imageCanvas.width / 2;
 979
 980         imageContext.translate(center, center);
 981
 982         imageContext.rotate(this.rotate * Math.PI / 180);
 983
 984         imageContext.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 985
 986         var canvas = document.createElement("canvas");
 987
 988         var context = canvas.getContext("2d");
 989
 990         canvas.width = this.thumbEl.getWidth() / this.getScaleLevel();
 991
 992         canvas.height = this.thumbEl.getHeight() / this.getScaleLevel();
 993
 994         switch (this.rotate) {
 995             case 0 :
 996
 997                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 998                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
 999
1000                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1001                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1002
1003                 var sx = this.thumbEl.getLeft(true) - this.previewEl.getLeft(true);
1004                 var sy = this.thumbEl.getTop(true) - this.previewEl.getTop(true);
1005
1006                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1007                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1008
1009                 if(canvas.width > this.outputMaxWidth) {
1010                     var scale = this.outputMaxWidth / canvas.width;
1011                     canvas.width = canvas.width * scale;
1012                     canvas.height = canvas.height * scale;
1013                     context.scale(scale, scale);
1014                 }
1015
1016                 context.fillStyle = 'white';
1017                 context.fillRect(0, 0, this.thumbEl.getWidth() / this.getScaleLevel(), this.thumbEl.getHeight() / this.getScaleLevel());
1018
1019
1020                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1021
1022                 break;
1023             case 90 :
1024
1025                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
1026                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
1027
1028                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1029                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1030
1031                 var targetWidth = this.minWidth - 2 * x;
1032                 var targetHeight = this.minHeight - 2 * y;
1033
1034                 var scale = 1;
1035
1036                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1037                     scale = targetWidth / width;
1038                 }
1039
1040                 if(x > 0 && y == 0){
1041                     scale = targetHeight / height;
1042                 }
1043
1044                 if(x > 0 && y > 0){
1045                     scale = targetWidth / width;
1046
1047                     if(width < height){
1048                         scale = targetHeight / height;
1049                     }
1050                 }
1051
1052                 context.scale(scale, scale);
1053
1054                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1055                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1056
1057                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1058                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1059
1060                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
1061
1062                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1063
1064                 break;
1065             case 180 :
1066
1067                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
1068                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
1069
1070                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1071                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1072
1073                 var targetWidth = this.minWidth - 2 * x;
1074                 var targetHeight = this.minHeight - 2 * y;
1075
1076                 var scale = 1;
1077
1078                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1079                     scale = targetWidth / width;
1080                 }
1081
1082                 if(x > 0 && y == 0){
1083                     scale = targetHeight / height;
1084                 }
1085
1086                 if(x > 0 && y > 0){
1087                     scale = targetWidth / width;
1088
1089                     if(width < height){
1090                         scale = targetHeight / height;
1091                     }
1092                 }
1093
1094                 context.scale(scale, scale);
1095
1096                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1097                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1098
1099                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1100                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1101
1102                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1103                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
1104
1105                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1106
1107                 break;
1108             case 270 :
1109
1110                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
1111                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
1112
1113                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1114                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1115
1116                 var targetWidth = this.minWidth - 2 * x;
1117                 var targetHeight = this.minHeight - 2 * y;
1118
1119                 var scale = 1;
1120
1121                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1122                     scale = targetWidth / width;
1123                 }
1124
1125                 if(x > 0 && y == 0){
1126                     scale = targetHeight / height;
1127                 }
1128
1129                 if(x > 0 && y > 0){
1130                     scale = targetWidth / width;
1131
1132                     if(width < height){
1133                         scale = targetHeight / height;
1134                     }
1135                 }
1136
1137                 context.scale(scale, scale);
1138                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1139                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1140
1141                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1142                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1143
1144                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1145
1146                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1147
1148                 break;
1149             default :
1150                 break;
1151         }
1152
1153         this.cropData = canvas.toDataURL(this.cropType);
1154
1155         if(this.fireEvent('crop', this, this.cropData) !== false){
1156             this.process(this.file, this.cropData);
1157         }
1158
1159         return;
1160
1161     },
1162
1163     setThumbBoxSize : function()
1164     {
1165         var width, height;
1166
1167         if(this.isDocument && typeof(this.imageEl) != 'undefined'){
1168             width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.max(this.minWidth, this.minHeight) : Math.min(this.minWidth, this.minHeight);
1169             height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.min(this.minWidth, this.minHeight) : Math.max(this.minWidth, this.minHeight);
1170
1171             this.minWidth = width;
1172             this.minHeight = height;
1173
1174             if(this.rotate == 90 || this.rotate == 270){
1175                 this.minWidth = height;
1176                 this.minHeight = width;
1177             }
1178         }
1179
1180         height = this.windowSize;
1181         width = Math.ceil(this.minWidth * height / this.minHeight);
1182
1183         if(this.minWidth > this.minHeight){
1184             width = this.windowSize;
1185             height = Math.ceil(this.minHeight * width / this.minWidth);
1186         }
1187
1188         this.thumbEl.setStyle({
1189             width : width + 'px',
1190             height : height + 'px'
1191         });
1192
1193         return;
1194
1195     },
1196
1197     setThumbBoxPosition : function()
1198     {
1199         var x = Math.ceil((this.bodyEl.getWidth() - this.thumbEl.getWidth()) / 2 );
1200         var y = Math.ceil((this.bodyEl.getHeight() - this.thumbEl.getHeight()) / 2);
1201
1202         this.thumbEl.setLeft(x);
1203         this.thumbEl.setTop(y);
1204
1205     },
1206
1207     baseRotateLevel : function()
1208     {
1209         this.baseRotate = 1;
1210
1211         if(
1212                 typeof(this.exif) != 'undefined' &&
1213                 typeof(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != 'undefined' &&
1214                 [1, 3, 6, 8].indexOf(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != -1
1215         ){
1216             this.baseRotate = this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']];
1217         }
1218
1219         this.rotate = Roo.dialog.UploadCropbox['Orientation'][this.baseRotate];
1220
1221     },
1222
1223     baseScaleLevel : function()
1224     {
1225         var width, height;
1226
1227         if(this.isDocument){
1228
1229             if(this.baseRotate == 6 || this.baseRotate == 8){
1230
1231                 height = this.thumbEl.getHeight();
1232                 this.baseScale = height / this.imageEl.OriginWidth;
1233
1234                 if(this.imageEl.OriginHeight * this.baseScale > this.thumbEl.getWidth()){
1235                     width = this.thumbEl.getWidth();
1236                     this.baseScale = width / this.imageEl.OriginHeight;
1237                 }
1238
1239                 return;
1240             }
1241
1242             height = this.thumbEl.getHeight();
1243             this.baseScale = height / this.imageEl.OriginHeight;
1244
1245             if(this.imageEl.OriginWidth * this.baseScale > this.thumbEl.getWidth()){
1246                 width = this.thumbEl.getWidth();
1247                 this.baseScale = width / this.imageEl.OriginWidth;
1248             }
1249
1250             return;
1251         }
1252
1253         if(this.baseRotate == 6 || this.baseRotate == 8){
1254
1255             width = this.thumbEl.getHeight();
1256             this.baseScale = width / this.imageEl.OriginHeight;
1257
1258             if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getWidth()){
1259                 height = this.thumbEl.getWidth();
1260                 this.baseScale = height / this.imageEl.OriginHeight;
1261             }
1262
1263             if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1264                 height = this.thumbEl.getWidth();
1265                 this.baseScale = height / this.imageEl.OriginHeight;
1266
1267                 if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getHeight()){
1268                     width = this.thumbEl.getHeight();
1269                     this.baseScale = width / this.imageEl.OriginWidth;
1270                 }
1271             }
1272
1273             return;
1274         }
1275
1276         width = this.thumbEl.getWidth();
1277         this.baseScale = width / this.imageEl.OriginWidth;
1278
1279         if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getHeight()){
1280             height = this.thumbEl.getHeight();
1281             this.baseScale = height / this.imageEl.OriginHeight;
1282         }
1283
1284         if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1285
1286             height = this.thumbEl.getHeight();
1287             this.baseScale = height / this.imageEl.OriginHeight;
1288
1289             if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getWidth()){
1290                 width = this.thumbEl.getWidth();
1291                 this.baseScale = width / this.imageEl.OriginWidth;
1292             }
1293
1294         }
1295
1296         if(this.imageEl.OriginWidth < this.minWidth || this.imageEl.OriginHeight < this.minHeight) {
1297             this.baseScale = width / this.minWidth;
1298         }
1299
1300         return;
1301     },
1302
1303     getScaleLevel : function()
1304     {
1305         return this.baseScale * Math.pow(1.02, this.scale);
1306     },
1307
1308     onTouchStart : function(e)
1309     {
1310         if(!this.canvasLoaded){
1311             this.beforeSelectFile(e);
1312             return;
1313         }
1314
1315         var touches = e.browserEvent.touches;
1316
1317         if(!touches){
1318             return;
1319         }
1320
1321         if(touches.length == 1){
1322             this.onMouseDown(e);
1323             return;
1324         }
1325
1326         if(touches.length != 2){
1327             return;
1328         }
1329
1330         var coords = [];
1331
1332         for(var i = 0, finger; finger = touches[i]; i++){
1333             coords.push(finger.pageX, finger.pageY);
1334         }
1335
1336         var x = Math.pow(coords[0] - coords[2], 2);
1337         var y = Math.pow(coords[1] - coords[3], 2);
1338
1339         this.startDistance = Math.sqrt(x + y);
1340
1341         this.startScale = this.scale;
1342
1343         this.pinching = true;
1344         this.dragable = false;
1345
1346     },
1347
1348     onTouchMove : function(e)
1349     {
1350         if(!this.pinching && !this.dragable){
1351             return;
1352         }
1353
1354         var touches = e.browserEvent.touches;
1355
1356         if(!touches){
1357             return;
1358         }
1359
1360         if(this.dragable){
1361             this.onMouseMove(e);
1362             return;
1363         }
1364
1365         var coords = [];
1366
1367         for(var i = 0, finger; finger = touches[i]; i++){
1368             coords.push(finger.pageX, finger.pageY);
1369         }
1370
1371         var x = Math.pow(coords[0] - coords[2], 2);
1372         var y = Math.pow(coords[1] - coords[3], 2);
1373
1374         this.endDistance = Math.sqrt(x + y);
1375
1376         this.scale = this.startScale + Math.floor(Math.log(this.endDistance / this.startDistance) / Math.log(1.1));
1377
1378         if(!this.zoomable()){
1379             this.scale = this.startScale;
1380             return;
1381         }
1382
1383         this.draw();
1384
1385     },
1386
1387     onTouchEnd : function(e)
1388     {
1389         this.pinching = false;
1390         this.dragable = false;
1391
1392     },
1393
1394     process : function(file, crop)
1395     {
1396         if(this.loadMask){
1397             this.maskEl.mask(this.loadingText);
1398         }
1399
1400         this.xhr = new XMLHttpRequest();
1401
1402         file.xhr = this.xhr;
1403
1404         this.xhr.open(this.method, this.url, true);
1405
1406         var headers = {
1407             "Accept": "application/json",
1408             "Cache-Control": "no-cache",
1409             "X-Requested-With": "XMLHttpRequest"
1410         };
1411
1412         for (var headerName in headers) {
1413             var headerValue = headers[headerName];
1414             if (headerValue) {
1415                 this.xhr.setRequestHeader(headerName, headerValue);
1416             }
1417         }
1418
1419         var _this = this;
1420
1421         this.xhr.onload = function()
1422         {
1423             _this.xhrOnLoad(_this.xhr);
1424         }
1425
1426         this.xhr.onerror = function()
1427         {
1428             _this.xhrOnError(_this.xhr);
1429         }
1430
1431         var formData = new FormData();
1432
1433         formData.append('returnHTML', 'NO');
1434
1435         if(crop){
1436             formData.append('crop', crop);
1437             var blobBin = atob(crop.split(',')[1]);
1438             var array = [];
1439             for(var i = 0; i < blobBin.length; i++) {
1440                 array.push(blobBin.charCodeAt(i));
1441             }
1442             var croppedFile =new Blob([new Uint8Array(array)], {type: this.cropType});
1443             formData.append(this.paramName, croppedFile, file.name);
1444         }
1445
1446         if(typeof(file.filename) != 'undefined'){
1447             formData.append('filename', file.filename);
1448         }
1449
1450         if(typeof(file.mimetype) != 'undefined'){
1451             formData.append('mimetype', file.mimetype);
1452         }
1453
1454         if(this.fireEvent('arrange', this, formData) != false){
1455             this.xhr.send(formData);
1456         };
1457     },
1458
1459     xhrOnLoad : function(xhr)
1460     {
1461         if(this.loadMask){
1462             this.maskEl.unmask();
1463         }
1464
1465         if (xhr.readyState !== 4) {
1466             this.fireEvent('exception', this, xhr);
1467             return;
1468         }
1469
1470         var response = Roo.decode(xhr.responseText);
1471
1472         if(!response.success){
1473             this.fireEvent('exception', this, xhr);
1474             return;
1475         }
1476
1477         var response = Roo.decode(xhr.responseText);
1478
1479         this.fireEvent('upload', this, response);
1480
1481     },
1482
1483     xhrOnError : function()
1484     {
1485         if(this.loadMask){
1486             this.maskEl.unmask();
1487         }
1488
1489         Roo.log('xhr on error');
1490
1491         var response = Roo.decode(xhr.responseText);
1492
1493         Roo.log(response);
1494
1495     },
1496
1497     prepare : function(file)
1498     {
1499         if(this.loadMask){
1500             this.maskEl.mask(this.loadingText);
1501         }
1502
1503         this.file = false;
1504         this.exif = {};
1505
1506         if(typeof(file) === 'string'){
1507             this.loadCanvas(file);
1508             return;
1509         }
1510
1511         if(!file || !this.urlAPI){
1512             return;
1513         }
1514
1515         this.file = file;
1516         if(typeof(file.type) != 'undefined' && file.type.length != 0) {
1517             this.cropType = file.type;
1518         }
1519
1520         var _this = this;
1521
1522         if(this.fireEvent('prepare', this, this.file) != false){
1523
1524             var reader = new FileReader();
1525
1526             reader.onload = function (e) {
1527                 if (e.target.error) {
1528                     Roo.log(e.target.error);
1529                     return;
1530                 }
1531
1532                 var buffer = e.target.result,
1533                     dataView = new DataView(buffer),
1534                     offset = 2,
1535                     maxOffset = dataView.byteLength - 4,
1536                     markerBytes,
1537                     markerLength;
1538
1539                 if (dataView.getUint16(0) === 0xffd8) {
1540                     while (offset < maxOffset) {
1541                         markerBytes = dataView.getUint16(offset);
1542
1543                         if ((markerBytes >= 0xffe0 && markerBytes <= 0xffef) || markerBytes === 0xfffe) {
1544                             markerLength = dataView.getUint16(offset + 2) + 2;
1545                             if (offset + markerLength > dataView.byteLength) {
1546                                 Roo.log('Invalid meta data: Invalid segment size.');
1547                                 break;
1548                             }
1549
1550                             if(markerBytes == 0xffe1){
1551                                 _this.parseExifData(
1552                                     dataView,
1553                                     offset,
1554                                     markerLength
1555                                 );
1556                             }
1557
1558                             offset += markerLength;
1559
1560                             continue;
1561                         }
1562
1563                         break;
1564                     }
1565
1566                 }
1567
1568                 var url = _this.urlAPI.createObjectURL(_this.file);
1569
1570                 _this.loadCanvas(url);
1571
1572                 return;
1573             }
1574
1575             reader.readAsArrayBuffer(this.file);
1576
1577         }
1578
1579     },
1580
1581     parseExifData : function(dataView, offset, length)
1582     {
1583         var tiffOffset = offset + 10,
1584             littleEndian,
1585             dirOffset;
1586
1587         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1588             // No Exif data, might be XMP data instead
1589             return;
1590         }
1591
1592         // Check for the ASCII code for "Exif" (0x45786966):
1593         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1594             // No Exif data, might be XMP data instead
1595             return;
1596         }
1597         if (tiffOffset + 8 > dataView.byteLength) {
1598             Roo.log('Invalid Exif data: Invalid segment size.');
1599             return;
1600         }
1601         // Check for the two null bytes:
1602         if (dataView.getUint16(offset + 8) !== 0x0000) {
1603             Roo.log('Invalid Exif data: Missing byte alignment offset.');
1604             return;
1605         }
1606         // Check the byte alignment:
1607         switch (dataView.getUint16(tiffOffset)) {
1608         case 0x4949:
1609             littleEndian = true;
1610             break;
1611         case 0x4D4D:
1612             littleEndian = false;
1613             break;
1614         default:
1615             Roo.log('Invalid Exif data: Invalid byte alignment marker.');
1616             return;
1617         }
1618         // Check for the TIFF tag marker (0x002A):
1619         if (dataView.getUint16(tiffOffset + 2, littleEndian) !== 0x002A) {
1620             Roo.log('Invalid Exif data: Missing TIFF marker.');
1621             return;
1622         }
1623         // Retrieve the directory offset bytes, usually 0x00000008 or 8 decimal:
1624         dirOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
1625
1626         this.parseExifTags(
1627             dataView,
1628             tiffOffset,
1629             tiffOffset + dirOffset,
1630             littleEndian
1631         );
1632     },
1633
1634     parseExifTags : function(dataView, tiffOffset, dirOffset, littleEndian)
1635     {
1636         var tagsNumber,
1637             dirEndOffset,
1638             i;
1639         if (dirOffset + 6 > dataView.byteLength) {
1640             Roo.log('Invalid Exif data: Invalid directory offset.');
1641             return;
1642         }
1643         tagsNumber = dataView.getUint16(dirOffset, littleEndian);
1644         dirEndOffset = dirOffset + 2 + 12 * tagsNumber;
1645         if (dirEndOffset + 4 > dataView.byteLength) {
1646             Roo.log('Invalid Exif data: Invalid directory size.');
1647             return;
1648         }
1649         for (i = 0; i < tagsNumber; i += 1) {
1650             this.parseExifTag(
1651                 dataView,
1652                 tiffOffset,
1653                 dirOffset + 2 + 12 * i, // tag offset
1654                 littleEndian
1655             );
1656         }
1657         // Return the offset to the next directory:
1658         return dataView.getUint32(dirEndOffset, littleEndian);
1659     },
1660
1661     parseExifTag : function (dataView, tiffOffset, offset, littleEndian)
1662     {
1663         var tag = dataView.getUint16(offset, littleEndian);
1664
1665         this.exif[tag] = this.getExifValue(
1666             dataView,
1667             tiffOffset,
1668             offset,
1669             dataView.getUint16(offset + 2, littleEndian), // tag type
1670             dataView.getUint32(offset + 4, littleEndian), // tag length
1671             littleEndian
1672         );
1673     },
1674
1675     getExifValue : function (dataView, tiffOffset, offset, type, length, littleEndian)
1676     {
1677         var tagType = Roo.dialog.UploadCropbox.exifTagTypes[type],
1678             tagSize,
1679             dataOffset,
1680             values,
1681             i,
1682             str,
1683             c;
1684
1685         if (!tagType) {
1686             Roo.log('Invalid Exif data: Invalid tag type.');
1687             return;
1688         }
1689
1690         tagSize = tagType.size * length;
1691         // Determine if the value is contained in the dataOffset bytes,
1692         // or if the value at the dataOffset is a pointer to the actual data:
1693         dataOffset = tagSize > 4 ?
1694                 tiffOffset + dataView.getUint32(offset + 8, littleEndian) : (offset + 8);
1695         if (dataOffset + tagSize > dataView.byteLength) {
1696             Roo.log('Invalid Exif data: Invalid data offset.');
1697             return;
1698         }
1699         if (length === 1) {
1700             return tagType.getValue(dataView, dataOffset, littleEndian);
1701         }
1702         values = [];
1703         for (i = 0; i < length; i += 1) {
1704             values[i] = tagType.getValue(dataView, dataOffset + i * tagType.size, littleEndian);
1705         }
1706
1707         if (tagType.ascii) {
1708             str = '';
1709             // Concatenate the chars:
1710             for (i = 0; i < values.length; i += 1) {
1711                 c = values[i];
1712                 // Ignore the terminating NULL byte(s):
1713                 if (c === '\u0000') {
1714                     break;
1715                 }
1716                 str += c;
1717             }
1718             return str;
1719         }
1720         return values;
1721     }
1722
1723 });
1724
1725 Roo.apply(Roo.dialog.UploadCropbox, {
1726     tags : {
1727         'Orientation': 0x0112
1728     },
1729
1730     Orientation: {
1731             1: 0, //'top-left',
1732 //            2: 'top-right',
1733             3: 180, //'bottom-right',
1734 //            4: 'bottom-left',
1735 //            5: 'left-top',
1736             6: 90, //'right-top',
1737 //            7: 'right-bottom',
1738             8: 270 //'left-bottom'
1739     },
1740
1741     exifTagTypes : {
1742         // byte, 8-bit unsigned int:
1743         1: {
1744             getValue: function (dataView, dataOffset) {
1745                 return dataView.getUint8(dataOffset);
1746             },
1747             size: 1
1748         },
1749         // ascii, 8-bit byte:
1750         2: {
1751             getValue: function (dataView, dataOffset) {
1752                 return String.fromCharCode(dataView.getUint8(dataOffset));
1753             },
1754             size: 1,
1755             ascii: true
1756         },
1757         // short, 16 bit int:
1758         3: {
1759             getValue: function (dataView, dataOffset, littleEndian) {
1760                 return dataView.getUint16(dataOffset, littleEndian);
1761             },
1762             size: 2
1763         },
1764         // long, 32 bit int:
1765         4: {
1766             getValue: function (dataView, dataOffset, littleEndian) {
1767                 return dataView.getUint32(dataOffset, littleEndian);
1768             },
1769             size: 4
1770         },
1771         // rational = two long values, first is numerator, second is denominator:
1772         5: {
1773             getValue: function (dataView, dataOffset, littleEndian) {
1774                 return dataView.getUint32(dataOffset, littleEndian) /
1775                     dataView.getUint32(dataOffset + 4, littleEndian);
1776             },
1777             size: 8
1778         },
1779         // slong, 32 bit signed int:
1780         9: {
1781             getValue: function (dataView, dataOffset, littleEndian) {
1782                 return dataView.getInt32(dataOffset, littleEndian);
1783             },
1784             size: 4
1785         },
1786         // srational, two slongs, first is numerator, second is denominator:
1787         10: {
1788             getValue: function (dataView, dataOffset, littleEndian) {
1789                 return dataView.getInt32(dataOffset, littleEndian) /
1790                     dataView.getInt32(dataOffset + 4, littleEndian);
1791             },
1792             size: 8
1793         }
1794     },
1795
1796     footer : {
1797         STANDARD : [
1798             {
1799                 tag : 'div',
1800                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1801                 action : 'rotate-left',
1802                 cn : [
1803                     {
1804                         tag : 'button',
1805                         cls : 'btn btn-default',
1806                         html : '<i class="fa fa-undo"></i>'
1807                     }
1808                 ]
1809             },
1810             {
1811                 tag : 'div',
1812                 cls : 'btn-group roo-upload-cropbox-picture',
1813                 action : 'picture',
1814                 cn : [
1815                     {
1816                         tag : 'button',
1817                         cls : 'btn btn-default',
1818                         html : '<i class="fa fa-picture-o"></i>'
1819                     }
1820                 ]
1821             },
1822             {
1823                 tag : 'div',
1824                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1825                 action : 'rotate-right',
1826                 cn : [
1827                     {
1828                         tag : 'button',
1829                         cls : 'btn btn-default',
1830                         html : '<i class="fa fa-repeat"></i>'
1831                     }
1832                 ]
1833             }
1834         ],
1835         DOCUMENT : [
1836             {
1837                 tag : 'div',
1838                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1839                 action : 'rotate-left',
1840                 cn : [
1841                     {
1842                         tag : 'button',
1843                         cls : 'btn btn-default',
1844                         html : '<i class="fa fa-undo"></i>'
1845                     }
1846                 ]
1847             },
1848             {
1849                 tag : 'div',
1850                 cls : 'btn-group roo-upload-cropbox-download',
1851                 action : 'download',
1852                 cn : [
1853                     {
1854                         tag : 'button',
1855                         cls : 'btn btn-default',
1856                         html : '<i class="fa fa-download"></i>'
1857                     }
1858                 ]
1859             },
1860             {
1861                 tag : 'div',
1862                 cls : 'btn-group roo-upload-cropbox-crop',
1863                 action : 'crop',
1864                 cn : [
1865                     {
1866                         tag : 'button',
1867                         cls : 'btn btn-default',
1868                         html : '<i class="fa fa-crop"></i>'
1869                     }
1870                 ]
1871             },
1872             {
1873                 tag : 'div',
1874                 cls : 'btn-group roo-upload-cropbox-trash',
1875                 action : 'trash',
1876                 cn : [
1877                     {
1878                         tag : 'button',
1879                         cls : 'btn btn-default',
1880                         html : '<i class="fa fa-trash"></i>'
1881                     }
1882                 ]
1883             },
1884             {
1885                 tag : 'div',
1886                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1887                 action : 'rotate-right',
1888                 cn : [
1889                     {
1890                         tag : 'button',
1891                         cls : 'btn btn-default',
1892                         html : '<i class="fa fa-repeat"></i>'
1893                     }
1894                 ]
1895             }
1896         ],
1897         ROTATOR : [
1898             {
1899                 tag : 'div',
1900                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1901                 action : 'rotate-left',
1902                 cn : [
1903                     {
1904                         tag : 'button',
1905                         cls : 'btn btn-default',
1906                         html : '<i class="fa fa-undo"></i>'
1907                     }
1908                 ]
1909             },
1910             {
1911                 tag : 'div',
1912                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1913                 action : 'rotate-right',
1914                 cn : [
1915                     {
1916                         tag : 'button',
1917                         cls : 'btn btn-default',
1918                         html : '<i class="fa fa-repeat"></i>'
1919                     }
1920                 ]
1921             }
1922         ],
1923         CENTER : [
1924             {
1925                 tag : 'div',
1926                 cls : 'btn-group roo-upload-cropbox-center',
1927                 action : 'center',
1928                 cn : [
1929                     {
1930                         tag : 'button',
1931                         cls : 'btn btn-default',
1932                         html : 'CENTER'
1933                     }
1934                 ]
1935             }
1936         ]
1937     }
1938 });