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 * 0.05;
 557         var maxPaddingTop = 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 + maxPaddingLeft;
 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 + maxPaddingTop;
 565         }
 566
 567         var minX = Math.ceil(this.thumbEl.getLeft(true) + this.thumbEl.getWidth() - this.canvasEl.width - maxPaddingLeft);
 568         var minY = Math.ceil(this.thumbEl.getTop(true) + this.thumbEl.getHeight() - this.canvasEl.height - maxPaddingTop);
 569
 570         var maxX = Math.ceil(this.thumbEl.getLeft(true) + maxPaddingLeft);
 571         var maxY = Math.ceil(this.thumbEl.getTop(true) +  maxPaddingTop);
 572
 573         Roo.log("++++++++++++++++++");
 574
 575         Roo.log("min X: " + minX);
 576         Roo.log("min Y: " + minY);
 577         Roo.log("max X: " + maxX);
 578         Roo.log("max Y: " + maxY);
 579
 580
 581         if(minX > maxX) {
 582             var tempX = minX;
 583             minX = maxX;
 584             maxX = tempX;
 585         }
 586
 587         if(minY > maxY) {
 588             var tempY = minY;
 589             minY = maxY;
 590             maxY = tempY;
 591         }
 592
 593         var x = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 594         var y = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 595
 596         x = x - this.mouseX;
 597         y = y - this.mouseY;
 598
 599         var bgX = Math.ceil(x + this.previewEl.getLeft(true));
 600         var bgY = Math.ceil(y + this.previewEl.getTop(true));
 601
 602         bgX = (bgX < minX) ? minX : ((bgX > maxX) ? maxX : bgX);
 603         bgY = (bgY < minY) ? minY : ((bgY > maxY) ? maxY : bgY);
 604
 605         this.previewEl.setLeft(bgX);
 606         this.previewEl.setTop(bgY);
 607
 608         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 609         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 610     },
 611
 612     onMouseUp : function(e)
 613     {
 614         e.stopEvent();
 615
 616         this.dragable = false;
 617     },
 618
 619     onMouseWheel : function(e)
 620     {
 621         e.stopEvent();
 622
 623         this.startScale = this.scale;
 624         this.scale = (e.getWheelDelta() > 0) ? (this.scale + 1) : (this.scale - 1);
 625
 626         if(!this.zoomable()){
 627             this.scale = this.startScale;
 628             return;
 629         }
 630
 631
 632         this.draw();
 633
 634         return;
 635     },
 636
 637     zoomable : function()
 638     {
 639         var minScale = this.thumbEl.getWidth() / this.minWidth;
 640
 641         if(this.minWidth < this.minHeight){
 642             minScale = this.thumbEl.getHeight() / this.minHeight;
 643         }
 644
 645         var width = Math.ceil(this.imageEl.OriginWidth * this.getScaleLevel() / minScale);
 646         var height = Math.ceil(this.imageEl.OriginHeight * this.getScaleLevel() / minScale);
 647
 648         var maxWidth = this.imageEl.OriginWidth;
 649         var maxHeight = this.imageEl.OriginHeight;
 650
 651
 652         var newCanvasWidth = Math.floor(this.imageEl.OriginWidth * this.getScaleLevel());
 653         var newCanvasHeight = Math.floor(this.imageEl.OriginHeight * this.getScaleLevel());
 654
 655         var oldCenterLeft = Math.ceil((this.bodyEl.getWidth() - this.canvasEl.width) / 2);
 656         var oldCenterTop = Math.ceil((this.bodyEl.getHeight() - this.canvasEl.height) / 2);
 657
 658         var newCenterLeft = Math.ceil((this.bodyEl.getWidth() - newCanvasWidth) / 2);
 659         var newCenterTop = Math.ceil((this.bodyEl.getHeight() - newCanvasHeight) / 2);
 660
 661         var leftDiff = newCenterLeft - oldCenterLeft;
 662         var topDiff = newCenterTop - oldCenterTop;
 663
 664         var newPreviewLeft = this.previewEl.getLeft(true) + leftDiff;
 665         var newPreviewTop = this.previewEl.getTop(true) + topDiff;
 666
 667         var paddingLeft = newPreviewLeft - this.thumbEl.getLeft(true);
 668         var paddingTop = newPreviewTop - this.thumbEl.getTop(true);
 669
 670         var paddingRight = this.thumbEl.getLeft(true) + this.thumbEl.getWidth() - newCanvasWidth - newPreviewLeft;
 671         var paddingBottom = this.thumbEl.getTop(true) + this.thumbEl.getHeight() - newCanvasHeight - newPreviewTop;
 672
 673         var maxPaddingLeft = newCanvasWidth * 0.05;
 674         var maxPaddingTop = newCanvasHeight * 0.05;
 675
 676         if ((this.imageEl.OriginWidth / this.imageEl.OriginHeight <= this.minWidth / this.minHeight)) {
 677             maxPaddingLeft = (newCanvasHeight * this.minWidth / this.minHeight - newCanvasWidth) / 2 + maxPaddingLeft;
 678         }
 679
 680         if ((this.imageEl.OriginWidth / this.imageEl.OriginHeight >= this.minWidth / this.minHeight)) {
 681             maxPaddingTop = (newCanvasWidth * this.minHeight / this.minWidth - newCanvasHeight) / 2 + maxPaddingTop;
 682         }
 683
 684         Roo.log("=================================");
 685         Roo.log("old canvas width: " + this.canvasEl.width);
 686         Roo.log("old canvas height: " + this.canvasEl.height);
 687
 688         Roo.log("new canvas width: " + newCanvasWidth);
 689         Roo.log("new canvas height: " + newCanvasHeight);
 690
 691         Roo.log("old preview left: " + this.previewEl.getLeft(true));
 692         Roo.log("old preview top: " + this.previewEl.getTop(true));
 693
 694         Roo.log("new preview left: " + newPreviewLeft);
 695         Roo.log("new preview top: " + newPreviewTop);
 696
 697         Roo.log("padding left: " + paddingLeft);
 698         Roo.log("padding top: " + paddingTop);
 699
 700         Roo.log("padding right: " + paddingRight);
 701         Roo.log("padding bottom: " + paddingBottom);
 702
 703         Roo.log("max padding left: " + maxPaddingLeft);
 704         Roo.log("max padding top: " + maxPaddingTop);
 705
 706         if(
 707                 this.isDocument &&
 708                 (this.rotate == 0 || this.rotate == 180) &&
 709                 (
 710                     width > this.imageEl.OriginWidth ||
 711                     height > this.imageEl.OriginHeight ||
 712                     (width < this.minWidth && height < this.minHeight)
 713                 )
 714         ){
 715             return false;
 716         }
 717
 718         if(
 719                 this.isDocument &&
 720                 (this.rotate == 90 || this.rotate == 270) &&
 721                 (
 722                     width > this.imageEl.OriginWidth ||
 723                     height > this.imageEl.OriginHeight ||
 724                     (width < this.minHeight && height < this.minWidth)
 725                 )
 726         ){
 727             return false;
 728         }
 729
 730         if(
 731                 !this.isDocument &&
 732                 (this.rotate == 0 || this.rotate == 180) &&
 733                 (
 734                     // for zoom out
 735                     paddingLeft > maxPaddingLeft ||
 736                     paddingRight > maxPaddingLeft ||
 737                     paddingTop > maxPaddingTop ||
 738                     paddingBottom > maxPaddingTop ||
 739                     // for zoom in
 740                     width > maxWidth ||
 741                     height > maxHeight
 742                 )
 743         ){
 744             return false;
 745         }
 746
 747         if(
 748                 !this.isDocument &&
 749                 (this.rotate == 90 || this.rotate == 270) &&
 750                 (
 751                     width < this.minHeight ||
 752                     width > this.imageEl.OriginWidth ||
 753                     height < this.minWidth ||
 754                     height > this.imageEl.OriginHeight
 755                 )
 756         ){
 757             return false;
 758         }
 759
 760         return true;
 761
 762     },
 763
 764     onRotateLeft : function(e)
 765     {
 766         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 767
 768             var minScale = this.thumbEl.getWidth() / this.minWidth;
 769
 770             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 771             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 772
 773             this.startScale = this.scale;
 774
 775             while (this.getScaleLevel() < minScale){
 776
 777                 this.scale = this.scale + 1;
 778
 779                 if(!this.zoomable()){
 780                     break;
 781                 }
 782
 783                 if(
 784                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 785                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 786                 ){
 787                     continue;
 788                 }
 789
 790                 this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 791
 792                 this.draw();
 793
 794                 return;
 795             }
 796
 797             this.scale = this.startScale;
 798
 799             this.onRotateFail();
 800
 801             return false;
 802         }
 803
 804         this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 805
 806         if(this.isDocument){
 807             this.setThumbBoxSize();
 808             this.setThumbBoxPosition();
 809             this.setCanvasPosition();
 810         }
 811
 812         this.draw();
 813
 814         this.fireEvent('rotate', this, 'left');
 815
 816     },
 817
 818     onRotateRight : function(e)
 819     {
 820         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 821
 822             var minScale = this.thumbEl.getWidth() / this.minWidth;
 823
 824             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 825             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 826
 827             this.startScale = this.scale;
 828
 829             while (this.getScaleLevel() < minScale){
 830
 831                 this.scale = this.scale + 1;
 832
 833                 if(!this.zoomable()){
 834                     break;
 835                 }
 836
 837                 if(
 838                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 839                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 840                 ){
 841                     continue;
 842                 }
 843
 844                 this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 845
 846                 this.draw();
 847
 848                 return;
 849             }
 850
 851             this.scale = this.startScale;
 852
 853             this.onRotateFail();
 854
 855             return false;
 856         }
 857
 858         this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 859
 860         if(this.isDocument){
 861             this.setThumbBoxSize();
 862             this.setThumbBoxPosition();
 863             this.setCanvasPosition();
 864         }
 865
 866         this.draw();
 867
 868         this.fireEvent('rotate', this, 'right');
 869     },
 870
 871     onRotateFail : function()
 872     {
 873         this.errorEl.show(true);
 874
 875         var _this = this;
 876
 877         (function() { _this.errorEl.hide(true); }).defer(this.errorTimeout);
 878     },
 879
 880     draw : function()
 881     {
 882         this.previewEl.dom.innerHTML = '';
 883
 884         var canvasEl = document.createElement("canvas");
 885
 886         var contextEl = canvasEl.getContext("2d");
 887
 888         canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 889         canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 890         var center = this.imageEl.OriginWidth / 2;
 891
 892         if(this.imageEl.OriginWidth < this.imageEl.OriginHeight){
 893             canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 894             canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 895             center = this.imageEl.OriginHeight / 2;
 896         }
 897
 898         contextEl.scale(this.getScaleLevel(), this.getScaleLevel());
 899
 900         contextEl.translate(center, center);
 901         contextEl.rotate(this.rotate * Math.PI / 180);
 902
 903         contextEl.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 904
 905         this.canvasEl = document.createElement("canvas");
 906
 907         this.contextEl = this.canvasEl.getContext("2d");
 908
 909         switch (this.rotate) {
 910             case 0 :
 911
 912                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 913                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 914
 915                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 916
 917                 break;
 918             case 90 :
 919
 920                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 921                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 922
 923                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 924                     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);
 925                     break;
 926                 }
 927
 928                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 929
 930                 break;
 931             case 180 :
 932
 933                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 934                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 935
 936                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 937                     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);
 938                     break;
 939                 }
 940
 941                 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);
 942
 943                 break;
 944             case 270 :
 945
 946                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 947                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 948
 949                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 950                     this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 951                     break;
 952                 }
 953
 954                 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);
 955
 956                 break;
 957             default :
 958                 break;
 959         }
 960
 961         this.previewEl.appendChild(this.canvasEl);
 962
 963         this.setCanvasPosition(false);
 964     },
 965
 966     crop : function()
 967     {
 968         if(!this.canvasLoaded){
 969             return;
 970         }
 971
 972         var imageCanvas = document.createElement("canvas");
 973
 974         var imageContext = imageCanvas.getContext("2d");
 975
 976         imageCanvas.width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 977         imageCanvas.height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 978
 979         var center = imageCanvas.width / 2;
 980
 981         imageContext.translate(center, center);
 982
 983         imageContext.rotate(this.rotate * Math.PI / 180);
 984
 985         imageContext.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 986
 987         var canvas = document.createElement("canvas");
 988
 989         var context = canvas.getContext("2d");
 990
 991         canvas.width = this.thumbEl.getWidth() / this.getScaleLevel();
 992
 993         canvas.height = this.thumbEl.getHeight() / this.getScaleLevel();
 994
 995         switch (this.rotate) {
 996             case 0 :
 997
 998                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
 999                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
1000
1001                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1002                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1003
1004                 var sx = this.thumbEl.getLeft(true) - this.previewEl.getLeft(true);
1005                 var sy = this.thumbEl.getTop(true) - this.previewEl.getTop(true);
1006
1007                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1008                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1009
1010                 if(canvas.width > this.outputMaxWidth) {
1011                     var scale = this.outputMaxWidth / canvas.width;
1012                     canvas.width = canvas.width * scale;
1013                     canvas.height = canvas.height * scale;
1014                     context.scale(scale, scale);
1015                 }
1016
1017                 context.fillStyle = 'white';
1018                 context.fillRect(0, 0, this.thumbEl.getWidth() / this.getScaleLevel(), this.thumbEl.getHeight() / this.getScaleLevel());
1019
1020
1021                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1022
1023                 break;
1024             case 90 :
1025
1026                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
1027                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
1028
1029                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1030                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1031
1032                 var targetWidth = this.minWidth - 2 * x;
1033                 var targetHeight = this.minHeight - 2 * y;
1034
1035                 var scale = 1;
1036
1037                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1038                     scale = targetWidth / width;
1039                 }
1040
1041                 if(x > 0 && y == 0){
1042                     scale = targetHeight / height;
1043                 }
1044
1045                 if(x > 0 && y > 0){
1046                     scale = targetWidth / width;
1047
1048                     if(width < height){
1049                         scale = targetHeight / height;
1050                     }
1051                 }
1052
1053                 context.scale(scale, scale);
1054
1055                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1056                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1057
1058                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1059                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1060
1061                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
1062
1063                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1064
1065                 break;
1066             case 180 :
1067
1068                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
1069                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
1070
1071                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1072                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1073
1074                 var targetWidth = this.minWidth - 2 * x;
1075                 var targetHeight = this.minHeight - 2 * y;
1076
1077                 var scale = 1;
1078
1079                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1080                     scale = targetWidth / width;
1081                 }
1082
1083                 if(x > 0 && y == 0){
1084                     scale = targetHeight / height;
1085                 }
1086
1087                 if(x > 0 && y > 0){
1088                     scale = targetWidth / width;
1089
1090                     if(width < height){
1091                         scale = targetHeight / height;
1092                     }
1093                 }
1094
1095                 context.scale(scale, scale);
1096
1097                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1098                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1099
1100                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1101                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1102
1103                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1104                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
1105
1106                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1107
1108                 break;
1109             case 270 :
1110
1111                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
1112                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
1113
1114                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1115                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1116
1117                 var targetWidth = this.minWidth - 2 * x;
1118                 var targetHeight = this.minHeight - 2 * y;
1119
1120                 var scale = 1;
1121
1122                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1123                     scale = targetWidth / width;
1124                 }
1125
1126                 if(x > 0 && y == 0){
1127                     scale = targetHeight / height;
1128                 }
1129
1130                 if(x > 0 && y > 0){
1131                     scale = targetWidth / width;
1132
1133                     if(width < height){
1134                         scale = targetHeight / height;
1135                     }
1136                 }
1137
1138                 context.scale(scale, scale);
1139                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1140                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1141
1142                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1143                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1144
1145                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1146
1147                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1148
1149                 break;
1150             default :
1151                 break;
1152         }
1153
1154         this.cropData = canvas.toDataURL(this.cropType);
1155
1156         if(this.fireEvent('crop', this, this.cropData) !== false){
1157             this.process(this.file, this.cropData);
1158         }
1159
1160         return;
1161
1162     },
1163
1164     setThumbBoxSize : function()
1165     {
1166         var width, height;
1167
1168         if(this.isDocument && typeof(this.imageEl) != 'undefined'){
1169             width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.max(this.minWidth, this.minHeight) : Math.min(this.minWidth, this.minHeight);
1170             height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.min(this.minWidth, this.minHeight) : Math.max(this.minWidth, this.minHeight);
1171
1172             this.minWidth = width;
1173             this.minHeight = height;
1174
1175             if(this.rotate == 90 || this.rotate == 270){
1176                 this.minWidth = height;
1177                 this.minHeight = width;
1178             }
1179         }
1180
1181         height = this.windowSize;
1182         width = Math.ceil(this.minWidth * height / this.minHeight);
1183
1184         if(this.minWidth > this.minHeight){
1185             width = this.windowSize;
1186             height = Math.ceil(this.minHeight * width / this.minWidth);
1187         }
1188
1189         this.thumbEl.setStyle({
1190             width : width + 'px',
1191             height : height + 'px'
1192         });
1193
1194         return;
1195
1196     },
1197
1198     setThumbBoxPosition : function()
1199     {
1200         var x = Math.ceil((this.bodyEl.getWidth() - this.thumbEl.getWidth()) / 2 );
1201         var y = Math.ceil((this.bodyEl.getHeight() - this.thumbEl.getHeight()) / 2);
1202
1203         this.thumbEl.setLeft(x);
1204         this.thumbEl.setTop(y);
1205
1206     },
1207
1208     baseRotateLevel : function()
1209     {
1210         this.baseRotate = 1;
1211
1212         if(
1213                 typeof(this.exif) != 'undefined' &&
1214                 typeof(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != 'undefined' &&
1215                 [1, 3, 6, 8].indexOf(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != -1
1216         ){
1217             this.baseRotate = this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']];
1218         }
1219
1220         this.rotate = Roo.dialog.UploadCropbox['Orientation'][this.baseRotate];
1221
1222     },
1223
1224     baseScaleLevel : function()
1225     {
1226         var width, height;
1227
1228         if(this.isDocument){
1229
1230             if(this.baseRotate == 6 || this.baseRotate == 8){
1231
1232                 height = this.thumbEl.getHeight();
1233                 this.baseScale = height / this.imageEl.OriginWidth;
1234
1235                 if(this.imageEl.OriginHeight * this.baseScale > this.thumbEl.getWidth()){
1236                     width = this.thumbEl.getWidth();
1237                     this.baseScale = width / this.imageEl.OriginHeight;
1238                 }
1239
1240                 return;
1241             }
1242
1243             height = this.thumbEl.getHeight();
1244             this.baseScale = height / this.imageEl.OriginHeight;
1245
1246             if(this.imageEl.OriginWidth * this.baseScale > this.thumbEl.getWidth()){
1247                 width = this.thumbEl.getWidth();
1248                 this.baseScale = width / this.imageEl.OriginWidth;
1249             }
1250
1251             return;
1252         }
1253
1254         if(this.baseRotate == 6 || this.baseRotate == 8){
1255
1256             width = this.thumbEl.getHeight();
1257             this.baseScale = width / this.imageEl.OriginHeight;
1258
1259             if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getWidth()){
1260                 height = this.thumbEl.getWidth();
1261                 this.baseScale = height / this.imageEl.OriginHeight;
1262             }
1263
1264             if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1265                 height = this.thumbEl.getWidth();
1266                 this.baseScale = height / this.imageEl.OriginHeight;
1267
1268                 if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getHeight()){
1269                     width = this.thumbEl.getHeight();
1270                     this.baseScale = width / this.imageEl.OriginWidth;
1271                 }
1272             }
1273
1274             return;
1275         }
1276
1277         width = this.thumbEl.getWidth();
1278         this.baseScale = width / this.imageEl.OriginWidth;
1279
1280         if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getHeight()){
1281             height = this.thumbEl.getHeight();
1282             this.baseScale = height / this.imageEl.OriginHeight;
1283         }
1284
1285         if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1286
1287             height = this.thumbEl.getHeight();
1288             this.baseScale = height / this.imageEl.OriginHeight;
1289
1290             if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getWidth()){
1291                 width = this.thumbEl.getWidth();
1292                 this.baseScale = width / this.imageEl.OriginWidth;
1293             }
1294
1295         }
1296
1297         if(this.imageEl.OriginWidth < this.minWidth || this.imageEl.OriginHeight < this.minHeight) {
1298             this.baseScale = width / this.minWidth;
1299         }
1300
1301         return;
1302     },
1303
1304     getScaleLevel : function()
1305     {
1306         return this.baseScale * Math.pow(1.02, this.scale);
1307     },
1308
1309     onTouchStart : function(e)
1310     {
1311         if(!this.canvasLoaded){
1312             this.beforeSelectFile(e);
1313             return;
1314         }
1315
1316         var touches = e.browserEvent.touches;
1317
1318         if(!touches){
1319             return;
1320         }
1321
1322         if(touches.length == 1){
1323             this.onMouseDown(e);
1324             return;
1325         }
1326
1327         if(touches.length != 2){
1328             return;
1329         }
1330
1331         var coords = [];
1332
1333         for(var i = 0, finger; finger = touches[i]; i++){
1334             coords.push(finger.pageX, finger.pageY);
1335         }
1336
1337         var x = Math.pow(coords[0] - coords[2], 2);
1338         var y = Math.pow(coords[1] - coords[3], 2);
1339
1340         this.startDistance = Math.sqrt(x + y);
1341
1342         this.startScale = this.scale;
1343
1344         this.pinching = true;
1345         this.dragable = false;
1346
1347     },
1348
1349     onTouchMove : function(e)
1350     {
1351         if(!this.pinching && !this.dragable){
1352             return;
1353         }
1354
1355         var touches = e.browserEvent.touches;
1356
1357         if(!touches){
1358             return;
1359         }
1360
1361         if(this.dragable){
1362             this.onMouseMove(e);
1363             return;
1364         }
1365
1366         var coords = [];
1367
1368         for(var i = 0, finger; finger = touches[i]; i++){
1369             coords.push(finger.pageX, finger.pageY);
1370         }
1371
1372         var x = Math.pow(coords[0] - coords[2], 2);
1373         var y = Math.pow(coords[1] - coords[3], 2);
1374
1375         this.endDistance = Math.sqrt(x + y);
1376
1377         this.scale = this.startScale + Math.floor(Math.log(this.endDistance / this.startDistance) / Math.log(1.1));
1378
1379         if(!this.zoomable()){
1380             this.scale = this.startScale;
1381             return;
1382         }
1383
1384         this.draw();
1385
1386     },
1387
1388     onTouchEnd : function(e)
1389     {
1390         this.pinching = false;
1391         this.dragable = false;
1392
1393     },
1394
1395     process : function(file, crop)
1396     {
1397         if(this.loadMask){
1398             this.maskEl.mask(this.loadingText);
1399         }
1400
1401         this.xhr = new XMLHttpRequest();
1402
1403         file.xhr = this.xhr;
1404
1405         this.xhr.open(this.method, this.url, true);
1406
1407         var headers = {
1408             "Accept": "application/json",
1409             "Cache-Control": "no-cache",
1410             "X-Requested-With": "XMLHttpRequest"
1411         };
1412
1413         for (var headerName in headers) {
1414             var headerValue = headers[headerName];
1415             if (headerValue) {
1416                 this.xhr.setRequestHeader(headerName, headerValue);
1417             }
1418         }
1419
1420         var _this = this;
1421
1422         this.xhr.onload = function()
1423         {
1424             _this.xhrOnLoad(_this.xhr);
1425         }
1426
1427         this.xhr.onerror = function()
1428         {
1429             _this.xhrOnError(_this.xhr);
1430         }
1431
1432         var formData = new FormData();
1433
1434         formData.append('returnHTML', 'NO');
1435
1436         if(crop){
1437             formData.append('crop', crop);
1438             var blobBin = atob(crop.split(',')[1]);
1439             var array = [];
1440             for(var i = 0; i < blobBin.length; i++) {
1441                 array.push(blobBin.charCodeAt(i));
1442             }
1443             var croppedFile =new Blob([new Uint8Array(array)], {type: this.cropType});
1444             formData.append(this.paramName, croppedFile, file.name);
1445         }
1446
1447         if(typeof(file.filename) != 'undefined'){
1448             formData.append('filename', file.filename);
1449         }
1450
1451         if(typeof(file.mimetype) != 'undefined'){
1452             formData.append('mimetype', file.mimetype);
1453         }
1454
1455         if(this.fireEvent('arrange', this, formData) != false){
1456             this.xhr.send(formData);
1457         };
1458     },
1459
1460     xhrOnLoad : function(xhr)
1461     {
1462         if(this.loadMask){
1463             this.maskEl.unmask();
1464         }
1465
1466         if (xhr.readyState !== 4) {
1467             this.fireEvent('exception', this, xhr);
1468             return;
1469         }
1470
1471         var response = Roo.decode(xhr.responseText);
1472
1473         if(!response.success){
1474             this.fireEvent('exception', this, xhr);
1475             return;
1476         }
1477
1478         var response = Roo.decode(xhr.responseText);
1479
1480         this.fireEvent('upload', this, response);
1481
1482     },
1483
1484     xhrOnError : function()
1485     {
1486         if(this.loadMask){
1487             this.maskEl.unmask();
1488         }
1489
1490         Roo.log('xhr on error');
1491
1492         var response = Roo.decode(xhr.responseText);
1493
1494         Roo.log(response);
1495
1496     },
1497
1498     prepare : function(file)
1499     {
1500         if(this.loadMask){
1501             this.maskEl.mask(this.loadingText);
1502         }
1503
1504         this.file = false;
1505         this.exif = {};
1506
1507         if(typeof(file) === 'string'){
1508             this.loadCanvas(file);
1509             return;
1510         }
1511
1512         if(!file || !this.urlAPI){
1513             return;
1514         }
1515
1516         this.file = file;
1517         if(typeof(file.type) != 'undefined' && file.type.length != 0) {
1518             this.cropType = file.type;
1519         }
1520
1521         var _this = this;
1522
1523         if(this.fireEvent('prepare', this, this.file) != false){
1524
1525             var reader = new FileReader();
1526
1527             reader.onload = function (e) {
1528                 if (e.target.error) {
1529                     Roo.log(e.target.error);
1530                     return;
1531                 }
1532
1533                 var buffer = e.target.result,
1534                     dataView = new DataView(buffer),
1535                     offset = 2,
1536                     maxOffset = dataView.byteLength - 4,
1537                     markerBytes,
1538                     markerLength;
1539
1540                 if (dataView.getUint16(0) === 0xffd8) {
1541                     while (offset < maxOffset) {
1542                         markerBytes = dataView.getUint16(offset);
1543
1544                         if ((markerBytes >= 0xffe0 && markerBytes <= 0xffef) || markerBytes === 0xfffe) {
1545                             markerLength = dataView.getUint16(offset + 2) + 2;
1546                             if (offset + markerLength > dataView.byteLength) {
1547                                 Roo.log('Invalid meta data: Invalid segment size.');
1548                                 break;
1549                             }
1550
1551                             if(markerBytes == 0xffe1){
1552                                 _this.parseExifData(
1553                                     dataView,
1554                                     offset,
1555                                     markerLength
1556                                 );
1557                             }
1558
1559                             offset += markerLength;
1560
1561                             continue;
1562                         }
1563
1564                         break;
1565                     }
1566
1567                 }
1568
1569                 var url = _this.urlAPI.createObjectURL(_this.file);
1570
1571                 _this.loadCanvas(url);
1572
1573                 return;
1574             }
1575
1576             reader.readAsArrayBuffer(this.file);
1577
1578         }
1579
1580     },
1581
1582     parseExifData : function(dataView, offset, length)
1583     {
1584         var tiffOffset = offset + 10,
1585             littleEndian,
1586             dirOffset;
1587
1588         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1589             // No Exif data, might be XMP data instead
1590             return;
1591         }
1592
1593         // Check for the ASCII code for "Exif" (0x45786966):
1594         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1595             // No Exif data, might be XMP data instead
1596             return;
1597         }
1598         if (tiffOffset + 8 > dataView.byteLength) {
1599             Roo.log('Invalid Exif data: Invalid segment size.');
1600             return;
1601         }
1602         // Check for the two null bytes:
1603         if (dataView.getUint16(offset + 8) !== 0x0000) {
1604             Roo.log('Invalid Exif data: Missing byte alignment offset.');
1605             return;
1606         }
1607         // Check the byte alignment:
1608         switch (dataView.getUint16(tiffOffset)) {
1609         case 0x4949:
1610             littleEndian = true;
1611             break;
1612         case 0x4D4D:
1613             littleEndian = false;
1614             break;
1615         default:
1616             Roo.log('Invalid Exif data: Invalid byte alignment marker.');
1617             return;
1618         }
1619         // Check for the TIFF tag marker (0x002A):
1620         if (dataView.getUint16(tiffOffset + 2, littleEndian) !== 0x002A) {
1621             Roo.log('Invalid Exif data: Missing TIFF marker.');
1622             return;
1623         }
1624         // Retrieve the directory offset bytes, usually 0x00000008 or 8 decimal:
1625         dirOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
1626
1627         this.parseExifTags(
1628             dataView,
1629             tiffOffset,
1630             tiffOffset + dirOffset,
1631             littleEndian
1632         );
1633     },
1634
1635     parseExifTags : function(dataView, tiffOffset, dirOffset, littleEndian)
1636     {
1637         var tagsNumber,
1638             dirEndOffset,
1639             i;
1640         if (dirOffset + 6 > dataView.byteLength) {
1641             Roo.log('Invalid Exif data: Invalid directory offset.');
1642             return;
1643         }
1644         tagsNumber = dataView.getUint16(dirOffset, littleEndian);
1645         dirEndOffset = dirOffset + 2 + 12 * tagsNumber;
1646         if (dirEndOffset + 4 > dataView.byteLength) {
1647             Roo.log('Invalid Exif data: Invalid directory size.');
1648             return;
1649         }
1650         for (i = 0; i < tagsNumber; i += 1) {
1651             this.parseExifTag(
1652                 dataView,
1653                 tiffOffset,
1654                 dirOffset + 2 + 12 * i, // tag offset
1655                 littleEndian
1656             );
1657         }
1658         // Return the offset to the next directory:
1659         return dataView.getUint32(dirEndOffset, littleEndian);
1660     },
1661
1662     parseExifTag : function (dataView, tiffOffset, offset, littleEndian)
1663     {
1664         var tag = dataView.getUint16(offset, littleEndian);
1665
1666         this.exif[tag] = this.getExifValue(
1667             dataView,
1668             tiffOffset,
1669             offset,
1670             dataView.getUint16(offset + 2, littleEndian), // tag type
1671             dataView.getUint32(offset + 4, littleEndian), // tag length
1672             littleEndian
1673         );
1674     },
1675
1676     getExifValue : function (dataView, tiffOffset, offset, type, length, littleEndian)
1677     {
1678         var tagType = Roo.dialog.UploadCropbox.exifTagTypes[type],
1679             tagSize,
1680             dataOffset,
1681             values,
1682             i,
1683             str,
1684             c;
1685
1686         if (!tagType) {
1687             Roo.log('Invalid Exif data: Invalid tag type.');
1688             return;
1689         }
1690
1691         tagSize = tagType.size * length;
1692         // Determine if the value is contained in the dataOffset bytes,
1693         // or if the value at the dataOffset is a pointer to the actual data:
1694         dataOffset = tagSize > 4 ?
1695                 tiffOffset + dataView.getUint32(offset + 8, littleEndian) : (offset + 8);
1696         if (dataOffset + tagSize > dataView.byteLength) {
1697             Roo.log('Invalid Exif data: Invalid data offset.');
1698             return;
1699         }
1700         if (length === 1) {
1701             return tagType.getValue(dataView, dataOffset, littleEndian);
1702         }
1703         values = [];
1704         for (i = 0; i < length; i += 1) {
1705             values[i] = tagType.getValue(dataView, dataOffset + i * tagType.size, littleEndian);
1706         }
1707
1708         if (tagType.ascii) {
1709             str = '';
1710             // Concatenate the chars:
1711             for (i = 0; i < values.length; i += 1) {
1712                 c = values[i];
1713                 // Ignore the terminating NULL byte(s):
1714                 if (c === '\u0000') {
1715                     break;
1716                 }
1717                 str += c;
1718             }
1719             return str;
1720         }
1721         return values;
1722     }
1723
1724 });
1725
1726 Roo.apply(Roo.dialog.UploadCropbox, {
1727     tags : {
1728         'Orientation': 0x0112
1729     },
1730
1731     Orientation: {
1732             1: 0, //'top-left',
1733 //            2: 'top-right',
1734             3: 180, //'bottom-right',
1735 //            4: 'bottom-left',
1736 //            5: 'left-top',
1737             6: 90, //'right-top',
1738 //            7: 'right-bottom',
1739             8: 270 //'left-bottom'
1740     },
1741
1742     exifTagTypes : {
1743         // byte, 8-bit unsigned int:
1744         1: {
1745             getValue: function (dataView, dataOffset) {
1746                 return dataView.getUint8(dataOffset);
1747             },
1748             size: 1
1749         },
1750         // ascii, 8-bit byte:
1751         2: {
1752             getValue: function (dataView, dataOffset) {
1753                 return String.fromCharCode(dataView.getUint8(dataOffset));
1754             },
1755             size: 1,
1756             ascii: true
1757         },
1758         // short, 16 bit int:
1759         3: {
1760             getValue: function (dataView, dataOffset, littleEndian) {
1761                 return dataView.getUint16(dataOffset, littleEndian);
1762             },
1763             size: 2
1764         },
1765         // long, 32 bit int:
1766         4: {
1767             getValue: function (dataView, dataOffset, littleEndian) {
1768                 return dataView.getUint32(dataOffset, littleEndian);
1769             },
1770             size: 4
1771         },
1772         // rational = two long values, first is numerator, second is denominator:
1773         5: {
1774             getValue: function (dataView, dataOffset, littleEndian) {
1775                 return dataView.getUint32(dataOffset, littleEndian) /
1776                     dataView.getUint32(dataOffset + 4, littleEndian);
1777             },
1778             size: 8
1779         },
1780         // slong, 32 bit signed int:
1781         9: {
1782             getValue: function (dataView, dataOffset, littleEndian) {
1783                 return dataView.getInt32(dataOffset, littleEndian);
1784             },
1785             size: 4
1786         },
1787         // srational, two slongs, first is numerator, second is denominator:
1788         10: {
1789             getValue: function (dataView, dataOffset, littleEndian) {
1790                 return dataView.getInt32(dataOffset, littleEndian) /
1791                     dataView.getInt32(dataOffset + 4, littleEndian);
1792             },
1793             size: 8
1794         }
1795     },
1796
1797     footer : {
1798         STANDARD : [
1799             {
1800                 tag : 'div',
1801                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1802                 action : 'rotate-left',
1803                 cn : [
1804                     {
1805                         tag : 'button',
1806                         cls : 'btn btn-default',
1807                         html : '<i class="fa fa-undo"></i>'
1808                     }
1809                 ]
1810             },
1811             {
1812                 tag : 'div',
1813                 cls : 'btn-group roo-upload-cropbox-picture',
1814                 action : 'picture',
1815                 cn : [
1816                     {
1817                         tag : 'button',
1818                         cls : 'btn btn-default',
1819                         html : '<i class="fa fa-picture-o"></i>'
1820                     }
1821                 ]
1822             },
1823             {
1824                 tag : 'div',
1825                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1826                 action : 'rotate-right',
1827                 cn : [
1828                     {
1829                         tag : 'button',
1830                         cls : 'btn btn-default',
1831                         html : '<i class="fa fa-repeat"></i>'
1832                     }
1833                 ]
1834             }
1835         ],
1836         DOCUMENT : [
1837             {
1838                 tag : 'div',
1839                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1840                 action : 'rotate-left',
1841                 cn : [
1842                     {
1843                         tag : 'button',
1844                         cls : 'btn btn-default',
1845                         html : '<i class="fa fa-undo"></i>'
1846                     }
1847                 ]
1848             },
1849             {
1850                 tag : 'div',
1851                 cls : 'btn-group roo-upload-cropbox-download',
1852                 action : 'download',
1853                 cn : [
1854                     {
1855                         tag : 'button',
1856                         cls : 'btn btn-default',
1857                         html : '<i class="fa fa-download"></i>'
1858                     }
1859                 ]
1860             },
1861             {
1862                 tag : 'div',
1863                 cls : 'btn-group roo-upload-cropbox-crop',
1864                 action : 'crop',
1865                 cn : [
1866                     {
1867                         tag : 'button',
1868                         cls : 'btn btn-default',
1869                         html : '<i class="fa fa-crop"></i>'
1870                     }
1871                 ]
1872             },
1873             {
1874                 tag : 'div',
1875                 cls : 'btn-group roo-upload-cropbox-trash',
1876                 action : 'trash',
1877                 cn : [
1878                     {
1879                         tag : 'button',
1880                         cls : 'btn btn-default',
1881                         html : '<i class="fa fa-trash"></i>'
1882                     }
1883                 ]
1884             },
1885             {
1886                 tag : 'div',
1887                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1888                 action : 'rotate-right',
1889                 cn : [
1890                     {
1891                         tag : 'button',
1892                         cls : 'btn btn-default',
1893                         html : '<i class="fa fa-repeat"></i>'
1894                     }
1895                 ]
1896             }
1897         ],
1898         ROTATOR : [
1899             {
1900                 tag : 'div',
1901                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1902                 action : 'rotate-left',
1903                 cn : [
1904                     {
1905                         tag : 'button',
1906                         cls : 'btn btn-default',
1907                         html : '<i class="fa fa-undo"></i>'
1908                     }
1909                 ]
1910             },
1911             {
1912                 tag : 'div',
1913                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1914                 action : 'rotate-right',
1915                 cn : [
1916                     {
1917                         tag : 'button',
1918                         cls : 'btn btn-default',
1919                         html : '<i class="fa fa-repeat"></i>'
1920                     }
1921                 ]
1922             }
1923         ],
1924         CENTER : [
1925             {
1926                 tag : 'div',
1927                 cls : 'btn-group roo-upload-cropbox-center',
1928                 action : 'center',
1929                 cn : [
1930                     {
1931                         tag : 'button',
1932                         cls : 'btn btn-default',
1933                         html : 'CENTER'
1934                     }
1935                 ]
1936             }
1937         ]
1938     }
1939 });