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 / 0.9 * 0.05;
 557         var maxPaddingTop = maxPaddingLeft * this.minHeight / this.minWidth;
 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("maxPaddingLeft: " + maxPaddingLeft);
 576         Roo.log("maxPaddingTop: " + maxPaddingTop);
 577         Roo.log("min X: " + minX);
 578         Roo.log("min Y: " + minY);
 579         Roo.log("max X: " + maxX);
 580         Roo.log("max Y: " + maxY);
 581
 582
 583         if(minX > maxX) {
 584             var tempX = minX;
 585             minX = maxX;
 586             maxX = tempX;
 587         }
 588
 589         if(minY > maxY) {
 590             var tempY = minY;
 591             minY = maxY;
 592             maxY = tempY;
 593         }
 594
 595         var x = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 596         var y = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 597
 598         x = x - this.mouseX;
 599         y = y - this.mouseY;
 600
 601         var bgX = Math.ceil(x + this.previewEl.getLeft(true));
 602         var bgY = Math.ceil(y + this.previewEl.getTop(true));
 603
 604         bgX = (bgX < minX) ? minX : ((bgX > maxX) ? maxX : bgX);
 605         bgY = (bgY < minY) ? minY : ((bgY > maxY) ? maxY : bgY);
 606
 607         this.previewEl.setLeft(bgX);
 608         this.previewEl.setTop(bgY);
 609
 610         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 611         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 612     },
 613
 614     onMouseUp : function(e)
 615     {
 616         e.stopEvent();
 617
 618         this.dragable = false;
 619     },
 620
 621     onMouseWheel : function(e)
 622     {
 623         e.stopEvent();
 624
 625         this.startScale = this.scale;
 626         this.scale = (e.getWheelDelta() > 0) ? (this.scale + 1) : (this.scale - 1);
 627
 628         if(!this.zoomable()){
 629             this.scale = this.startScale;
 630             return;
 631         }
 632
 633
 634         this.draw();
 635
 636         return;
 637     },
 638
 639     zoomable : function()
 640     {
 641         var minScale = this.thumbEl.getWidth() / this.minWidth;
 642
 643         if(this.minWidth < this.minHeight){
 644             minScale = this.thumbEl.getHeight() / this.minHeight;
 645         }
 646
 647         var width = Math.ceil(this.imageEl.OriginWidth * this.getScaleLevel() / minScale);
 648         var height = Math.ceil(this.imageEl.OriginHeight * this.getScaleLevel() / minScale);
 649
 650         var maxWidth = this.imageEl.OriginWidth;
 651         var maxHeight = this.imageEl.OriginHeight;
 652
 653
 654         var newCanvasWidth = Math.floor(this.imageEl.OriginWidth * this.getScaleLevel());
 655         var newCanvasHeight = Math.floor(this.imageEl.OriginHeight * this.getScaleLevel());
 656
 657         var oldCenterLeft = Math.ceil((this.bodyEl.getWidth() - this.canvasEl.width) / 2);
 658         var oldCenterTop = Math.ceil((this.bodyEl.getHeight() - this.canvasEl.height) / 2);
 659
 660         var newCenterLeft = Math.ceil((this.bodyEl.getWidth() - newCanvasWidth) / 2);
 661         var newCenterTop = Math.ceil((this.bodyEl.getHeight() - newCanvasHeight) / 2);
 662
 663         var leftDiff = newCenterLeft - oldCenterLeft;
 664         var topDiff = newCenterTop - oldCenterTop;
 665
 666         var newPreviewLeft = this.previewEl.getLeft(true) + leftDiff;
 667         var newPreviewTop = this.previewEl.getTop(true) + topDiff;
 668
 669         var paddingLeft = newPreviewLeft - this.thumbEl.getLeft(true);
 670         var paddingTop = newPreviewTop - this.thumbEl.getTop(true);
 671
 672         var paddingRight = this.thumbEl.getLeft(true) + this.thumbEl.getWidth() - newCanvasWidth - newPreviewLeft;
 673         var paddingBottom = this.thumbEl.getTop(true) + this.thumbEl.getHeight() - newCanvasHeight - newPreviewTop;
 674
 675         var maxPaddingLeft = newCanvasWidth / 0.9 * 0.05;
 676         var maxPaddingTop = maxPaddingLeft * this.minHeight / this.minWidth;
 677
 678         if ((this.imageEl.OriginWidth / this.imageEl.OriginHeight <= this.minWidth / this.minHeight)) {
 679             maxPaddingLeft = (newCanvasHeight * this.minWidth / this.minHeight - newCanvasWidth) / 2 + maxPaddingLeft;
 680         }
 681
 682         if ((this.imageEl.OriginWidth / this.imageEl.OriginHeight >= this.minWidth / this.minHeight)) {
 683             maxPaddingTop = (newCanvasWidth * this.minHeight / this.minWidth - newCanvasHeight) / 2 + maxPaddingTop;
 684         }
 685
 686         Roo.log("=================================");
 687         Roo.log("old canvas width: " + this.canvasEl.width);
 688         Roo.log("old canvas height: " + this.canvasEl.height);
 689
 690         Roo.log("new canvas width: " + newCanvasWidth);
 691         Roo.log("new canvas height: " + newCanvasHeight);
 692
 693         Roo.log("old preview left: " + this.previewEl.getLeft(true));
 694         Roo.log("old preview top: " + this.previewEl.getTop(true));
 695
 696         Roo.log("new preview left: " + newPreviewLeft);
 697         Roo.log("new preview top: " + newPreviewTop);
 698
 699         Roo.log("padding left: " + paddingLeft);
 700         Roo.log("padding top: " + paddingTop);
 701
 702         Roo.log("padding right: " + paddingRight);
 703         Roo.log("padding bottom: " + paddingBottom);
 704
 705         Roo.log("max padding left: " + maxPaddingLeft);
 706         Roo.log("max padding top: " + maxPaddingTop);
 707
 708         if(
 709                 this.isDocument &&
 710                 (this.rotate == 0 || this.rotate == 180) &&
 711                 (
 712                     width > this.imageEl.OriginWidth ||
 713                     height > this.imageEl.OriginHeight ||
 714                     (width < this.minWidth && height < this.minHeight)
 715                 )
 716         ){
 717             return false;
 718         }
 719
 720         if(
 721                 this.isDocument &&
 722                 (this.rotate == 90 || this.rotate == 270) &&
 723                 (
 724                     width > this.imageEl.OriginWidth ||
 725                     height > this.imageEl.OriginHeight ||
 726                     (width < this.minHeight && height < this.minWidth)
 727                 )
 728         ){
 729             return false;
 730         }
 731
 732         if(
 733                 !this.isDocument &&
 734                 (this.rotate == 0 || this.rotate == 180) &&
 735                 (
 736                     // for zoom out
 737                     paddingLeft > maxPaddingLeft ||
 738                     paddingRight > maxPaddingLeft ||
 739                     paddingTop > maxPaddingTop ||
 740                     paddingBottom > maxPaddingTop ||
 741                     // for zoom in
 742                     width > maxWidth ||
 743                     height > maxHeight
 744                 )
 745         ){
 746             return false;
 747         }
 748
 749         if(
 750                 !this.isDocument &&
 751                 (this.rotate == 90 || this.rotate == 270) &&
 752                 (
 753                     width < this.minHeight ||
 754                     width > this.imageEl.OriginWidth ||
 755                     height < this.minWidth ||
 756                     height > this.imageEl.OriginHeight
 757                 )
 758         ){
 759             return false;
 760         }
 761
 762         return true;
 763
 764     },
 765
 766     onRotateLeft : function(e)
 767     {
 768         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 769
 770             var minScale = this.thumbEl.getWidth() / this.minWidth;
 771
 772             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 773             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 774
 775             this.startScale = this.scale;
 776
 777             while (this.getScaleLevel() < minScale){
 778
 779                 this.scale = this.scale + 1;
 780
 781                 if(!this.zoomable()){
 782                     break;
 783                 }
 784
 785                 if(
 786                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 787                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 788                 ){
 789                     continue;
 790                 }
 791
 792                 this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 793
 794                 this.draw();
 795
 796                 return;
 797             }
 798
 799             this.scale = this.startScale;
 800
 801             this.onRotateFail();
 802
 803             return false;
 804         }
 805
 806         this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 807
 808         if(this.isDocument){
 809             this.setThumbBoxSize();
 810             this.setThumbBoxPosition();
 811             this.setCanvasPosition();
 812         }
 813
 814         this.draw();
 815
 816         this.fireEvent('rotate', this, 'left');
 817
 818     },
 819
 820     onRotateRight : function(e)
 821     {
 822         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
 823
 824             var minScale = this.thumbEl.getWidth() / this.minWidth;
 825
 826             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
 827             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
 828
 829             this.startScale = this.scale;
 830
 831             while (this.getScaleLevel() < minScale){
 832
 833                 this.scale = this.scale + 1;
 834
 835                 if(!this.zoomable()){
 836                     break;
 837                 }
 838
 839                 if(
 840                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
 841                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
 842                 ){
 843                     continue;
 844                 }
 845
 846                 this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 847
 848                 this.draw();
 849
 850                 return;
 851             }
 852
 853             this.scale = this.startScale;
 854
 855             this.onRotateFail();
 856
 857             return false;
 858         }
 859
 860         this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 861
 862         if(this.isDocument){
 863             this.setThumbBoxSize();
 864             this.setThumbBoxPosition();
 865             this.setCanvasPosition();
 866         }
 867
 868         this.draw();
 869
 870         this.fireEvent('rotate', this, 'right');
 871     },
 872
 873     onRotateFail : function()
 874     {
 875         this.errorEl.show(true);
 876
 877         var _this = this;
 878
 879         (function() { _this.errorEl.hide(true); }).defer(this.errorTimeout);
 880     },
 881
 882     draw : function()
 883     {
 884         this.previewEl.dom.innerHTML = '';
 885
 886         var canvasEl = document.createElement("canvas");
 887
 888         var contextEl = canvasEl.getContext("2d");
 889
 890         canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 891         canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 892         var center = this.imageEl.OriginWidth / 2;
 893
 894         if(this.imageEl.OriginWidth < this.imageEl.OriginHeight){
 895             canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 896             canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 897             center = this.imageEl.OriginHeight / 2;
 898         }
 899
 900         contextEl.scale(this.getScaleLevel(), this.getScaleLevel());
 901
 902         contextEl.translate(center, center);
 903         contextEl.rotate(this.rotate * Math.PI / 180);
 904
 905         contextEl.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 906
 907         this.canvasEl = document.createElement("canvas");
 908
 909         this.contextEl = this.canvasEl.getContext("2d");
 910
 911         switch (this.rotate) {
 912             case 0 :
 913
 914                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 915                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 916
 917                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 918
 919                 break;
 920             case 90 :
 921
 922                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 923                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 924
 925                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 926                     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);
 927                     break;
 928                 }
 929
 930                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 931
 932                 break;
 933             case 180 :
 934
 935                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 936                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 937
 938                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 939                     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);
 940                     break;
 941                 }
 942
 943                 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);
 944
 945                 break;
 946             case 270 :
 947
 948                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 949                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 950
 951                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 952                     this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 953                     break;
 954                 }
 955
 956                 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);
 957
 958                 break;
 959             default :
 960                 break;
 961         }
 962
 963         this.previewEl.appendChild(this.canvasEl);
 964
 965         this.setCanvasPosition(false);
 966     },
 967
 968     crop : function()
 969     {
 970         if(!this.canvasLoaded){
 971             return;
 972         }
 973
 974         var imageCanvas = document.createElement("canvas");
 975
 976         var imageContext = imageCanvas.getContext("2d");
 977
 978         imageCanvas.width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 979         imageCanvas.height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
 980
 981         var center = imageCanvas.width / 2;
 982
 983         imageContext.translate(center, center);
 984
 985         imageContext.rotate(this.rotate * Math.PI / 180);
 986
 987         imageContext.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 988
 989         var canvas = document.createElement("canvas");
 990
 991         var context = canvas.getContext("2d");
 992
 993         canvas.width = this.thumbEl.getWidth() / this.getScaleLevel();
 994
 995         canvas.height = this.thumbEl.getHeight() / this.getScaleLevel();
 996
 997         switch (this.rotate) {
 998             case 0 :
 999
1000                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
1001                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
1002
1003                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1004                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1005
1006                 var sx = this.thumbEl.getLeft(true) - this.previewEl.getLeft(true);
1007                 var sy = this.thumbEl.getTop(true) - this.previewEl.getTop(true);
1008
1009                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1010                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1011
1012                 if(canvas.width > this.outputMaxWidth) {
1013                     var scale = this.outputMaxWidth / canvas.width;
1014                     canvas.width = canvas.width * scale;
1015                     canvas.height = canvas.height * scale;
1016                     context.scale(scale, scale);
1017                 }
1018
1019                 context.fillStyle = 'white';
1020                 context.fillRect(0, 0, this.thumbEl.getWidth() / this.getScaleLevel(), this.thumbEl.getHeight() / this.getScaleLevel());
1021
1022
1023                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1024
1025                 break;
1026             case 90 :
1027
1028                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
1029                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
1030
1031                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1032                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1033
1034                 var targetWidth = this.minWidth - 2 * x;
1035                 var targetHeight = this.minHeight - 2 * y;
1036
1037                 var scale = 1;
1038
1039                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1040                     scale = targetWidth / width;
1041                 }
1042
1043                 if(x > 0 && y == 0){
1044                     scale = targetHeight / height;
1045                 }
1046
1047                 if(x > 0 && y > 0){
1048                     scale = targetWidth / width;
1049
1050                     if(width < height){
1051                         scale = targetHeight / height;
1052                     }
1053                 }
1054
1055                 context.scale(scale, scale);
1056
1057                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1058                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1059
1060                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1061                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1062
1063                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
1064
1065                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1066
1067                 break;
1068             case 180 :
1069
1070                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
1071                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
1072
1073                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1074                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1075
1076                 var targetWidth = this.minWidth - 2 * x;
1077                 var targetHeight = this.minHeight - 2 * y;
1078
1079                 var scale = 1;
1080
1081                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1082                     scale = targetWidth / width;
1083                 }
1084
1085                 if(x > 0 && y == 0){
1086                     scale = targetHeight / height;
1087                 }
1088
1089                 if(x > 0 && y > 0){
1090                     scale = targetWidth / width;
1091
1092                     if(width < height){
1093                         scale = targetHeight / height;
1094                     }
1095                 }
1096
1097                 context.scale(scale, scale);
1098
1099                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1100                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1101
1102                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1103                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1104
1105                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1106                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
1107
1108                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1109
1110                 break;
1111             case 270 :
1112
1113                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
1114                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
1115
1116                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1117                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1118
1119                 var targetWidth = this.minWidth - 2 * x;
1120                 var targetHeight = this.minHeight - 2 * y;
1121
1122                 var scale = 1;
1123
1124                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1125                     scale = targetWidth / width;
1126                 }
1127
1128                 if(x > 0 && y == 0){
1129                     scale = targetHeight / height;
1130                 }
1131
1132                 if(x > 0 && y > 0){
1133                     scale = targetWidth / width;
1134
1135                     if(width < height){
1136                         scale = targetHeight / height;
1137                     }
1138                 }
1139
1140                 context.scale(scale, scale);
1141                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1142                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1143
1144                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1145                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1146
1147                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1148
1149                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1150
1151                 break;
1152             default :
1153                 break;
1154         }
1155
1156         this.cropData = canvas.toDataURL(this.cropType);
1157
1158         if(this.fireEvent('crop', this, this.cropData) !== false){
1159             this.process(this.file, this.cropData);
1160         }
1161
1162         return;
1163
1164     },
1165
1166     setThumbBoxSize : function()
1167     {
1168         var width, height;
1169
1170         if(this.isDocument && typeof(this.imageEl) != 'undefined'){
1171             width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.max(this.minWidth, this.minHeight) : Math.min(this.minWidth, this.minHeight);
1172             height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.min(this.minWidth, this.minHeight) : Math.max(this.minWidth, this.minHeight);
1173
1174             this.minWidth = width;
1175             this.minHeight = height;
1176
1177             if(this.rotate == 90 || this.rotate == 270){
1178                 this.minWidth = height;
1179                 this.minHeight = width;
1180             }
1181         }
1182
1183         height = this.windowSize;
1184         width = Math.ceil(this.minWidth * height / this.minHeight);
1185
1186         if(this.minWidth > this.minHeight){
1187             width = this.windowSize;
1188             height = Math.ceil(this.minHeight * width / this.minWidth);
1189         }
1190
1191         this.thumbEl.setStyle({
1192             width : width + 'px',
1193             height : height + 'px'
1194         });
1195
1196         return;
1197
1198     },
1199
1200     setThumbBoxPosition : function()
1201     {
1202         var x = Math.ceil((this.bodyEl.getWidth() - this.thumbEl.getWidth()) / 2 );
1203         var y = Math.ceil((this.bodyEl.getHeight() - this.thumbEl.getHeight()) / 2);
1204
1205         this.thumbEl.setLeft(x);
1206         this.thumbEl.setTop(y);
1207
1208     },
1209
1210     baseRotateLevel : function()
1211     {
1212         this.baseRotate = 1;
1213
1214         if(
1215                 typeof(this.exif) != 'undefined' &&
1216                 typeof(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != 'undefined' &&
1217                 [1, 3, 6, 8].indexOf(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != -1
1218         ){
1219             this.baseRotate = this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']];
1220         }
1221
1222         this.rotate = Roo.dialog.UploadCropbox['Orientation'][this.baseRotate];
1223
1224     },
1225
1226     baseScaleLevel : function()
1227     {
1228         var width, height;
1229
1230         if(this.isDocument){
1231
1232             if(this.baseRotate == 6 || this.baseRotate == 8){
1233
1234                 height = this.thumbEl.getHeight();
1235                 this.baseScale = height / this.imageEl.OriginWidth;
1236
1237                 if(this.imageEl.OriginHeight * this.baseScale > this.thumbEl.getWidth()){
1238                     width = this.thumbEl.getWidth();
1239                     this.baseScale = width / this.imageEl.OriginHeight;
1240                 }
1241
1242                 return;
1243             }
1244
1245             height = this.thumbEl.getHeight();
1246             this.baseScale = height / this.imageEl.OriginHeight;
1247
1248             if(this.imageEl.OriginWidth * this.baseScale > this.thumbEl.getWidth()){
1249                 width = this.thumbEl.getWidth();
1250                 this.baseScale = width / this.imageEl.OriginWidth;
1251             }
1252
1253             return;
1254         }
1255
1256         if(this.baseRotate == 6 || this.baseRotate == 8){
1257
1258             width = this.thumbEl.getHeight();
1259             this.baseScale = width / this.imageEl.OriginHeight;
1260
1261             if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getWidth()){
1262                 height = this.thumbEl.getWidth();
1263                 this.baseScale = height / this.imageEl.OriginHeight;
1264             }
1265
1266             if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1267                 height = this.thumbEl.getWidth();
1268                 this.baseScale = height / this.imageEl.OriginHeight;
1269
1270                 if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getHeight()){
1271                     width = this.thumbEl.getHeight();
1272                     this.baseScale = width / this.imageEl.OriginWidth;
1273                 }
1274             }
1275
1276             return;
1277         }
1278
1279         width = this.thumbEl.getWidth();
1280         this.baseScale = width / this.imageEl.OriginWidth;
1281
1282         if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getHeight()){
1283             height = this.thumbEl.getHeight();
1284             this.baseScale = height / this.imageEl.OriginHeight;
1285         }
1286
1287         if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1288
1289             height = this.thumbEl.getHeight();
1290             this.baseScale = height / this.imageEl.OriginHeight;
1291
1292             if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getWidth()){
1293                 width = this.thumbEl.getWidth();
1294                 this.baseScale = width / this.imageEl.OriginWidth;
1295             }
1296
1297         }
1298
1299         if(this.imageEl.OriginWidth < this.minWidth || this.imageEl.OriginHeight < this.minHeight) {
1300             this.baseScale = width / this.minWidth;
1301         }
1302
1303         return;
1304     },
1305
1306     getScaleLevel : function()
1307     {
1308         return this.baseScale * Math.pow(1.02, this.scale);
1309     },
1310
1311     onTouchStart : function(e)
1312     {
1313         if(!this.canvasLoaded){
1314             this.beforeSelectFile(e);
1315             return;
1316         }
1317
1318         var touches = e.browserEvent.touches;
1319
1320         if(!touches){
1321             return;
1322         }
1323
1324         if(touches.length == 1){
1325             this.onMouseDown(e);
1326             return;
1327         }
1328
1329         if(touches.length != 2){
1330             return;
1331         }
1332
1333         var coords = [];
1334
1335         for(var i = 0, finger; finger = touches[i]; i++){
1336             coords.push(finger.pageX, finger.pageY);
1337         }
1338
1339         var x = Math.pow(coords[0] - coords[2], 2);
1340         var y = Math.pow(coords[1] - coords[3], 2);
1341
1342         this.startDistance = Math.sqrt(x + y);
1343
1344         this.startScale = this.scale;
1345
1346         this.pinching = true;
1347         this.dragable = false;
1348
1349     },
1350
1351     onTouchMove : function(e)
1352     {
1353         if(!this.pinching && !this.dragable){
1354             return;
1355         }
1356
1357         var touches = e.browserEvent.touches;
1358
1359         if(!touches){
1360             return;
1361         }
1362
1363         if(this.dragable){
1364             this.onMouseMove(e);
1365             return;
1366         }
1367
1368         var coords = [];
1369
1370         for(var i = 0, finger; finger = touches[i]; i++){
1371             coords.push(finger.pageX, finger.pageY);
1372         }
1373
1374         var x = Math.pow(coords[0] - coords[2], 2);
1375         var y = Math.pow(coords[1] - coords[3], 2);
1376
1377         this.endDistance = Math.sqrt(x + y);
1378
1379         this.scale = this.startScale + Math.floor(Math.log(this.endDistance / this.startDistance) / Math.log(1.1));
1380
1381         if(!this.zoomable()){
1382             this.scale = this.startScale;
1383             return;
1384         }
1385
1386         this.draw();
1387
1388     },
1389
1390     onTouchEnd : function(e)
1391     {
1392         this.pinching = false;
1393         this.dragable = false;
1394
1395     },
1396
1397     process : function(file, crop)
1398     {
1399         if(this.loadMask){
1400             this.maskEl.mask(this.loadingText);
1401         }
1402
1403         this.xhr = new XMLHttpRequest();
1404
1405         file.xhr = this.xhr;
1406
1407         this.xhr.open(this.method, this.url, true);
1408
1409         var headers = {
1410             "Accept": "application/json",
1411             "Cache-Control": "no-cache",
1412             "X-Requested-With": "XMLHttpRequest"
1413         };
1414
1415         for (var headerName in headers) {
1416             var headerValue = headers[headerName];
1417             if (headerValue) {
1418                 this.xhr.setRequestHeader(headerName, headerValue);
1419             }
1420         }
1421
1422         var _this = this;
1423
1424         this.xhr.onload = function()
1425         {
1426             _this.xhrOnLoad(_this.xhr);
1427         }
1428
1429         this.xhr.onerror = function()
1430         {
1431             _this.xhrOnError(_this.xhr);
1432         }
1433
1434         var formData = new FormData();
1435
1436         formData.append('returnHTML', 'NO');
1437
1438         if(crop){
1439             formData.append('crop', crop);
1440             var blobBin = atob(crop.split(',')[1]);
1441             var array = [];
1442             for(var i = 0; i < blobBin.length; i++) {
1443                 array.push(blobBin.charCodeAt(i));
1444             }
1445             var croppedFile =new Blob([new Uint8Array(array)], {type: this.cropType});
1446             formData.append(this.paramName, croppedFile, file.name);
1447         }
1448
1449         if(typeof(file.filename) != 'undefined'){
1450             formData.append('filename', file.filename);
1451         }
1452
1453         if(typeof(file.mimetype) != 'undefined'){
1454             formData.append('mimetype', file.mimetype);
1455         }
1456
1457         if(this.fireEvent('arrange', this, formData) != false){
1458             this.xhr.send(formData);
1459         };
1460     },
1461
1462     xhrOnLoad : function(xhr)
1463     {
1464         if(this.loadMask){
1465             this.maskEl.unmask();
1466         }
1467
1468         if (xhr.readyState !== 4) {
1469             this.fireEvent('exception', this, xhr);
1470             return;
1471         }
1472
1473         var response = Roo.decode(xhr.responseText);
1474
1475         if(!response.success){
1476             this.fireEvent('exception', this, xhr);
1477             return;
1478         }
1479
1480         var response = Roo.decode(xhr.responseText);
1481
1482         this.fireEvent('upload', this, response);
1483
1484     },
1485
1486     xhrOnError : function()
1487     {
1488         if(this.loadMask){
1489             this.maskEl.unmask();
1490         }
1491
1492         Roo.log('xhr on error');
1493
1494         var response = Roo.decode(xhr.responseText);
1495
1496         Roo.log(response);
1497
1498     },
1499
1500     prepare : function(file)
1501     {
1502         if(this.loadMask){
1503             this.maskEl.mask(this.loadingText);
1504         }
1505
1506         this.file = false;
1507         this.exif = {};
1508
1509         if(typeof(file) === 'string'){
1510             this.loadCanvas(file);
1511             return;
1512         }
1513
1514         if(!file || !this.urlAPI){
1515             return;
1516         }
1517
1518         this.file = file;
1519         if(typeof(file.type) != 'undefined' && file.type.length != 0) {
1520             this.cropType = file.type;
1521         }
1522
1523         var _this = this;
1524
1525         if(this.fireEvent('prepare', this, this.file) != false){
1526
1527             var reader = new FileReader();
1528
1529             reader.onload = function (e) {
1530                 if (e.target.error) {
1531                     Roo.log(e.target.error);
1532                     return;
1533                 }
1534
1535                 var buffer = e.target.result,
1536                     dataView = new DataView(buffer),
1537                     offset = 2,
1538                     maxOffset = dataView.byteLength - 4,
1539                     markerBytes,
1540                     markerLength;
1541
1542                 if (dataView.getUint16(0) === 0xffd8) {
1543                     while (offset < maxOffset) {
1544                         markerBytes = dataView.getUint16(offset);
1545
1546                         if ((markerBytes >= 0xffe0 && markerBytes <= 0xffef) || markerBytes === 0xfffe) {
1547                             markerLength = dataView.getUint16(offset + 2) + 2;
1548                             if (offset + markerLength > dataView.byteLength) {
1549                                 Roo.log('Invalid meta data: Invalid segment size.');
1550                                 break;
1551                             }
1552
1553                             if(markerBytes == 0xffe1){
1554                                 _this.parseExifData(
1555                                     dataView,
1556                                     offset,
1557                                     markerLength
1558                                 );
1559                             }
1560
1561                             offset += markerLength;
1562
1563                             continue;
1564                         }
1565
1566                         break;
1567                     }
1568
1569                 }
1570
1571                 var url = _this.urlAPI.createObjectURL(_this.file);
1572
1573                 _this.loadCanvas(url);
1574
1575                 return;
1576             }
1577
1578             reader.readAsArrayBuffer(this.file);
1579
1580         }
1581
1582     },
1583
1584     parseExifData : function(dataView, offset, length)
1585     {
1586         var tiffOffset = offset + 10,
1587             littleEndian,
1588             dirOffset;
1589
1590         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1591             // No Exif data, might be XMP data instead
1592             return;
1593         }
1594
1595         // Check for the ASCII code for "Exif" (0x45786966):
1596         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1597             // No Exif data, might be XMP data instead
1598             return;
1599         }
1600         if (tiffOffset + 8 > dataView.byteLength) {
1601             Roo.log('Invalid Exif data: Invalid segment size.');
1602             return;
1603         }
1604         // Check for the two null bytes:
1605         if (dataView.getUint16(offset + 8) !== 0x0000) {
1606             Roo.log('Invalid Exif data: Missing byte alignment offset.');
1607             return;
1608         }
1609         // Check the byte alignment:
1610         switch (dataView.getUint16(tiffOffset)) {
1611         case 0x4949:
1612             littleEndian = true;
1613             break;
1614         case 0x4D4D:
1615             littleEndian = false;
1616             break;
1617         default:
1618             Roo.log('Invalid Exif data: Invalid byte alignment marker.');
1619             return;
1620         }
1621         // Check for the TIFF tag marker (0x002A):
1622         if (dataView.getUint16(tiffOffset + 2, littleEndian) !== 0x002A) {
1623             Roo.log('Invalid Exif data: Missing TIFF marker.');
1624             return;
1625         }
1626         // Retrieve the directory offset bytes, usually 0x00000008 or 8 decimal:
1627         dirOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
1628
1629         this.parseExifTags(
1630             dataView,
1631             tiffOffset,
1632             tiffOffset + dirOffset,
1633             littleEndian
1634         );
1635     },
1636
1637     parseExifTags : function(dataView, tiffOffset, dirOffset, littleEndian)
1638     {
1639         var tagsNumber,
1640             dirEndOffset,
1641             i;
1642         if (dirOffset + 6 > dataView.byteLength) {
1643             Roo.log('Invalid Exif data: Invalid directory offset.');
1644             return;
1645         }
1646         tagsNumber = dataView.getUint16(dirOffset, littleEndian);
1647         dirEndOffset = dirOffset + 2 + 12 * tagsNumber;
1648         if (dirEndOffset + 4 > dataView.byteLength) {
1649             Roo.log('Invalid Exif data: Invalid directory size.');
1650             return;
1651         }
1652         for (i = 0; i < tagsNumber; i += 1) {
1653             this.parseExifTag(
1654                 dataView,
1655                 tiffOffset,
1656                 dirOffset + 2 + 12 * i, // tag offset
1657                 littleEndian
1658             );
1659         }
1660         // Return the offset to the next directory:
1661         return dataView.getUint32(dirEndOffset, littleEndian);
1662     },
1663
1664     parseExifTag : function (dataView, tiffOffset, offset, littleEndian)
1665     {
1666         var tag = dataView.getUint16(offset, littleEndian);
1667
1668         this.exif[tag] = this.getExifValue(
1669             dataView,
1670             tiffOffset,
1671             offset,
1672             dataView.getUint16(offset + 2, littleEndian), // tag type
1673             dataView.getUint32(offset + 4, littleEndian), // tag length
1674             littleEndian
1675         );
1676     },
1677
1678     getExifValue : function (dataView, tiffOffset, offset, type, length, littleEndian)
1679     {
1680         var tagType = Roo.dialog.UploadCropbox.exifTagTypes[type],
1681             tagSize,
1682             dataOffset,
1683             values,
1684             i,
1685             str,
1686             c;
1687
1688         if (!tagType) {
1689             Roo.log('Invalid Exif data: Invalid tag type.');
1690             return;
1691         }
1692
1693         tagSize = tagType.size * length;
1694         // Determine if the value is contained in the dataOffset bytes,
1695         // or if the value at the dataOffset is a pointer to the actual data:
1696         dataOffset = tagSize > 4 ?
1697                 tiffOffset + dataView.getUint32(offset + 8, littleEndian) : (offset + 8);
1698         if (dataOffset + tagSize > dataView.byteLength) {
1699             Roo.log('Invalid Exif data: Invalid data offset.');
1700             return;
1701         }
1702         if (length === 1) {
1703             return tagType.getValue(dataView, dataOffset, littleEndian);
1704         }
1705         values = [];
1706         for (i = 0; i < length; i += 1) {
1707             values[i] = tagType.getValue(dataView, dataOffset + i * tagType.size, littleEndian);
1708         }
1709
1710         if (tagType.ascii) {
1711             str = '';
1712             // Concatenate the chars:
1713             for (i = 0; i < values.length; i += 1) {
1714                 c = values[i];
1715                 // Ignore the terminating NULL byte(s):
1716                 if (c === '\u0000') {
1717                     break;
1718                 }
1719                 str += c;
1720             }
1721             return str;
1722         }
1723         return values;
1724     }
1725
1726 });
1727
1728 Roo.apply(Roo.dialog.UploadCropbox, {
1729     tags : {
1730         'Orientation': 0x0112
1731     },
1732
1733     Orientation: {
1734             1: 0, //'top-left',
1735 //            2: 'top-right',
1736             3: 180, //'bottom-right',
1737 //            4: 'bottom-left',
1738 //            5: 'left-top',
1739             6: 90, //'right-top',
1740 //            7: 'right-bottom',
1741             8: 270 //'left-bottom'
1742     },
1743
1744     exifTagTypes : {
1745         // byte, 8-bit unsigned int:
1746         1: {
1747             getValue: function (dataView, dataOffset) {
1748                 return dataView.getUint8(dataOffset);
1749             },
1750             size: 1
1751         },
1752         // ascii, 8-bit byte:
1753         2: {
1754             getValue: function (dataView, dataOffset) {
1755                 return String.fromCharCode(dataView.getUint8(dataOffset));
1756             },
1757             size: 1,
1758             ascii: true
1759         },
1760         // short, 16 bit int:
1761         3: {
1762             getValue: function (dataView, dataOffset, littleEndian) {
1763                 return dataView.getUint16(dataOffset, littleEndian);
1764             },
1765             size: 2
1766         },
1767         // long, 32 bit int:
1768         4: {
1769             getValue: function (dataView, dataOffset, littleEndian) {
1770                 return dataView.getUint32(dataOffset, littleEndian);
1771             },
1772             size: 4
1773         },
1774         // rational = two long values, first is numerator, second is denominator:
1775         5: {
1776             getValue: function (dataView, dataOffset, littleEndian) {
1777                 return dataView.getUint32(dataOffset, littleEndian) /
1778                     dataView.getUint32(dataOffset + 4, littleEndian);
1779             },
1780             size: 8
1781         },
1782         // slong, 32 bit signed int:
1783         9: {
1784             getValue: function (dataView, dataOffset, littleEndian) {
1785                 return dataView.getInt32(dataOffset, littleEndian);
1786             },
1787             size: 4
1788         },
1789         // srational, two slongs, first is numerator, second is denominator:
1790         10: {
1791             getValue: function (dataView, dataOffset, littleEndian) {
1792                 return dataView.getInt32(dataOffset, littleEndian) /
1793                     dataView.getInt32(dataOffset + 4, littleEndian);
1794             },
1795             size: 8
1796         }
1797     },
1798
1799     footer : {
1800         STANDARD : [
1801             {
1802                 tag : 'div',
1803                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1804                 action : 'rotate-left',
1805                 cn : [
1806                     {
1807                         tag : 'button',
1808                         cls : 'btn btn-default',
1809                         html : '<i class="fa fa-undo"></i>'
1810                     }
1811                 ]
1812             },
1813             {
1814                 tag : 'div',
1815                 cls : 'btn-group roo-upload-cropbox-picture',
1816                 action : 'picture',
1817                 cn : [
1818                     {
1819                         tag : 'button',
1820                         cls : 'btn btn-default',
1821                         html : '<i class="fa fa-picture-o"></i>'
1822                     }
1823                 ]
1824             },
1825             {
1826                 tag : 'div',
1827                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1828                 action : 'rotate-right',
1829                 cn : [
1830                     {
1831                         tag : 'button',
1832                         cls : 'btn btn-default',
1833                         html : '<i class="fa fa-repeat"></i>'
1834                     }
1835                 ]
1836             }
1837         ],
1838         DOCUMENT : [
1839             {
1840                 tag : 'div',
1841                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1842                 action : 'rotate-left',
1843                 cn : [
1844                     {
1845                         tag : 'button',
1846                         cls : 'btn btn-default',
1847                         html : '<i class="fa fa-undo"></i>'
1848                     }
1849                 ]
1850             },
1851             {
1852                 tag : 'div',
1853                 cls : 'btn-group roo-upload-cropbox-download',
1854                 action : 'download',
1855                 cn : [
1856                     {
1857                         tag : 'button',
1858                         cls : 'btn btn-default',
1859                         html : '<i class="fa fa-download"></i>'
1860                     }
1861                 ]
1862             },
1863             {
1864                 tag : 'div',
1865                 cls : 'btn-group roo-upload-cropbox-crop',
1866                 action : 'crop',
1867                 cn : [
1868                     {
1869                         tag : 'button',
1870                         cls : 'btn btn-default',
1871                         html : '<i class="fa fa-crop"></i>'
1872                     }
1873                 ]
1874             },
1875             {
1876                 tag : 'div',
1877                 cls : 'btn-group roo-upload-cropbox-trash',
1878                 action : 'trash',
1879                 cn : [
1880                     {
1881                         tag : 'button',
1882                         cls : 'btn btn-default',
1883                         html : '<i class="fa fa-trash"></i>'
1884                     }
1885                 ]
1886             },
1887             {
1888                 tag : 'div',
1889                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1890                 action : 'rotate-right',
1891                 cn : [
1892                     {
1893                         tag : 'button',
1894                         cls : 'btn btn-default',
1895                         html : '<i class="fa fa-repeat"></i>'
1896                     }
1897                 ]
1898             }
1899         ],
1900         ROTATOR : [
1901             {
1902                 tag : 'div',
1903                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1904                 action : 'rotate-left',
1905                 cn : [
1906                     {
1907                         tag : 'button',
1908                         cls : 'btn btn-default',
1909                         html : '<i class="fa fa-undo"></i>'
1910                     }
1911                 ]
1912             },
1913             {
1914                 tag : 'div',
1915                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1916                 action : 'rotate-right',
1917                 cn : [
1918                     {
1919                         tag : 'button',
1920                         cls : 'btn btn-default',
1921                         html : '<i class="fa fa-repeat"></i>'
1922                     }
1923                 ]
1924             }
1925         ],
1926         CENTER : [
1927             {
1928                 tag : 'div',
1929                 cls : 'btn-group roo-upload-cropbox-center',
1930                 action : 'center',
1931                 cn : [
1932                     {
1933                         tag : 'button',
1934                         cls : 'btn btn-default',
1935                         html : 'CENTER'
1936                     }
1937                 ]
1938             }
1939         ]
1940     }
1941 });