git.roojs.org Git - roojs1/blob - Roo/bootstrap/UploadCropbox.js

   1
   2 /*
   3 * Licence: LGPL
   4 */
   5
   6 /**
   7  * @class Roo.bootstrap.UploadCropbox
   8  * @extends Roo.bootstrap.Component
   9  * Bootstrap 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 {Array} buttons default ['rotateLeft', 'pictureBtn', 'rotateRight']
  16  *
  17  * @constructor
  18  * Create a new UploadCropbox
  19  * @param {Object} config The config object
  20  */
  21
  22 Roo.bootstrap.UploadCropbox = function(config){
  23     Roo.bootstrap.UploadCropbox.superclass.constructor.call(this, config);
  24
  25     this.addEvents({
  26         /**
  27          * @event beforeselectfile
  28          * Fire before select file
  29          * @param {Roo.bootstrap.UploadCropbox} this
  30          */
  31         "beforeselectfile" : true,
  32         /**
  33          * @event initial
  34          * Fire after initEvent
  35          * @param {Roo.bootstrap.UploadCropbox} this
  36          */
  37         "initial" : true,
  38         /**
  39          * @event crop
  40          * Fire after initEvent
  41          * @param {Roo.bootstrap.UploadCropbox} this
  42          * @param {String} data
  43          */
  44         "crop" : true,
  45         /**
  46          * @event prepare
  47          * Fire when preparing the file data
  48          * @param {Roo.bootstrap.UploadCropbox} this
  49          * @param {Object} file
  50          */
  51         "prepare" : true,
  52         /**
  53          * @event exception
  54          * Fire when get exception
  55          * @param {Roo.bootstrap.UploadCropbox} this
  56          * @param {Object} options
  57          */
  58         "exception" : true,
  59         /**
  60          * @event beforeloadcanvas
  61          * Fire before load the canvas
  62          * @param {Roo.bootstrap.UploadCropbox} this
  63          * @param {String} src
  64          */
  65         "beforeloadcanvas" : true,
  66         /**
  67          * @event trash
  68          * Fire when trash image
  69          * @param {Roo.bootstrap.UploadCropbox} this
  70          */
  71         "trash" : true,
  72         /**
  73          * @event download
  74          * Fire when download the image
  75          * @param {Roo.bootstrap.UploadCropbox} this
  76          */
  77         "download" : true,
  78         /**
  79          * @event footerbuttonclick
  80          * Fire when footerbuttonclick
  81          * @param {Roo.bootstrap.UploadCropbox} this
  82          * @param {String} type
  83          */
  84         "footerbuttonclick" : true,
  85         /**
  86          * @event resize
  87          * Fire when resize
  88          * @param {Roo.bootstrap.UploadCropbox} this
  89          */
  90         "resize" : true
  91
  92     });
  93
  94     this.buttons = this.buttons || Roo.bootstrap.UploadCropbox.footer.STANDARD;
  95 };
  96
  97 Roo.extend(Roo.bootstrap.UploadCropbox, Roo.bootstrap.Component,  {
  98
  99     emptyText : 'Click to upload image',
 100     rotateNotify : 'Image is too small to rotate',
 101     errorTimeout : 3000,
 102     scale : 0,
 103     baseScale : 1,
 104     rotate : 0,
 105     dragable : false,
 106     pinching : false,
 107     mouseX : 0,
 108     mouseY : 0,
 109     cropData : false,
 110     minWidth : 300,
 111     minHeight : 300,
 112     file : false,
 113     exif : {},
 114     baseRotate : 1,
 115     cropType : 'image/jpeg',
 116     buttons : false,
 117     canvasLoaded : false,
 118
 119     getAutoCreate : function()
 120     {
 121         var cfg = {
 122             tag : 'div',
 123             cls : 'roo-upload-cropbox',
 124             cn : [
 125                 {
 126                     tag : 'div',
 127                     cls : 'roo-upload-cropbox-body',
 128                     style : 'cursor:pointer',
 129                     cn : [
 130                         {
 131                             tag : 'div',
 132                             cls : 'roo-upload-cropbox-preview'
 133                         },
 134                         {
 135                             tag : 'div',
 136                             cls : 'roo-upload-cropbox-thumb'
 137                         },
 138                         {
 139                             tag : 'div',
 140                             cls : 'roo-upload-cropbox-empty-notify',
 141                             html : this.emptyText
 142                         },
 143                         {
 144                             tag : 'div',
 145                             cls : 'roo-upload-cropbox-error-notify alert alert-danger',
 146                             html : this.rotateNotify
 147                         }
 148                     ]
 149                 },
 150                 {
 151                     tag : 'div',
 152                     cls : 'roo-upload-cropbox-footer',
 153                     cn : {
 154                         tag : 'div',
 155                         cls : 'btn-group btn-group-justified roo-upload-cropbox-btn-group',
 156                         cn : []
 157                     }
 158                 }
 159             ]
 160         };
 161
 162         return cfg;
 163     },
 164
 165     onRender : function(ct, position)
 166     {
 167         Roo.bootstrap.UploadCropbox.superclass.onRender.call(this, ct, position);
 168
 169         if (this.buttons.length) {
 170
 171             Roo.each(this.buttons, function(bb) {
 172
 173                 var btn = this.el.select('.roo-upload-cropbox-footer div.roo-upload-cropbox-btn-group').first().createChild(bb);
 174
 175                 btn.on('click', this.onFooterButtonClick.createDelegate(this, [bb.action], true));
 176
 177             }, this);
 178         }
 179     },
 180
 181     initEvents : function()
 182     {
 183         this.urlAPI = (window.createObjectURL && window) ||
 184                                 (window.URL && URL.revokeObjectURL && URL) ||
 185                                 (window.webkitURL && webkitURL);
 186
 187         this.bodyEl = this.el.select('.roo-upload-cropbox-body', true).first();
 188         this.bodyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 189
 190         this.previewEl = this.el.select('.roo-upload-cropbox-preview', true).first();
 191         this.previewEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 192
 193         this.thumbEl = this.el.select('.roo-upload-cropbox-thumb', true).first();
 194         this.thumbEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 195         this.thumbEl.hide();
 196
 197         this.notifyEl = this.el.select('.roo-upload-cropbox-empty-notify', true).first();
 198         this.notifyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 199
 200         this.errorEl = this.el.select('.roo-upload-cropbox-error-notify', true).first();
 201         this.errorEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 202         this.errorEl.hide();
 203
 204         this.footerEl = this.el.select('.roo-upload-cropbox-footer', true).first();
 205         this.footerEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
 206         this.footerEl.hide();
 207
 208         this.setThumbBoxSize();
 209
 210         this.bind();
 211
 212         this.resize();
 213
 214         this.fireEvent('initial', this);
 215     },
 216
 217     bind : function()
 218     {
 219         var _this = this;
 220
 221         window.addEventListener("resize", function() { _this.resize(); } );
 222
 223         this.bodyEl.on('click', this.beforeSelectFile, this);
 224
 225         if(Roo.isTouch){
 226             this.bodyEl.on('touchstart', this.onTouchStart, this);
 227             this.bodyEl.on('touchmove', this.onTouchMove, this);
 228             this.bodyEl.on('touchend', this.onTouchEnd, this);
 229         }
 230
 231         if(!Roo.isTouch){
 232             this.bodyEl.on('mousedown', this.onMouseDown, this);
 233             this.bodyEl.on('mousemove', this.onMouseMove, this);
 234             var mousewheel = (/Firefox/i.test(navigator.userAgent))? 'DOMMouseScroll' : 'mousewheel';
 235             this.bodyEl.on(mousewheel, this.onMouseWheel, this);
 236             Roo.get(document).on('mouseup', this.onMouseUp, this);
 237         }
 238     },
 239
 240     reset : function()
 241     {
 242         this.scale = 0;
 243         this.baseScale = 1;
 244         this.rotate = 0;
 245         this.baseRotate = 1;
 246         this.dragable = false;
 247         this.pinching = false;
 248         this.mouseX = 0;
 249         this.mouseY = 0;
 250         this.cropData = false;
 251         this.notifyEl.dom.innerHTML = this.emptyText;
 252
 253     },
 254
 255     resize : function()
 256     {
 257         if(this.fireEvent('resize', this) != false){
 258             this.setThumbBoxPosition();
 259             this.setCanvasPosition();
 260         }
 261     },
 262
 263     onFooterButtonClick : function(e, el, o, type)
 264     {
 265         switch (type) {
 266             case 'rotate-left' :
 267                 this.onRotateLeft(e);
 268                 break;
 269             case 'rotate-right' :
 270                 this.onRotateRight(e);
 271                 break;
 272             case 'picture' :
 273                 this.beforeSelectFile(e);
 274                 break;
 275             case 'trash' :
 276                 this.trash(e);
 277                 break;
 278             case 'crop' :
 279                 this.crop(e);
 280                 break;
 281             case 'download' :
 282                 this.download(e);
 283                 break;
 284             default :
 285                 break;
 286         }
 287
 288         this.fireEvent('footerbuttonclick', this, type);
 289     },
 290
 291     beforeSelectFile : function(e)
 292     {
 293         this.fireEvent('beforeselectfile', this);
 294     },
 295
 296     trash : function(e)
 297     {
 298         this.fireEvent('trash', this);
 299     },
 300
 301     download : function(e)
 302     {
 303         this.fireEvent('download', this);
 304     },
 305
 306     loadCanvas : function(src)
 307     {
 308         if(this.fireEvent('beforeloadcanvas', this, src) != false){
 309
 310             this.reset();
 311
 312             this.imageEl = document.createElement('img');
 313
 314             var _this = this;
 315
 316             this.imageEl.addEventListener("load", function(){ _this.onLoadCanvas(); });
 317
 318             this.imageEl.src = src;
 319         }
 320     },
 321
 322     onLoadCanvas : function()
 323     {
 324         this.bodyEl.un('click', this.beforeSelectFile, this);
 325
 326         this.notifyEl.hide();
 327         this.thumbEl.show();
 328         this.footerEl.show();
 329
 330         this.imageEl.OriginWidth = this.imageEl.naturalWidth || this.imageEl.width;
 331         this.imageEl.OriginHeight = this.imageEl.naturalHeight || this.imageEl.height;
 332
 333         this.setThumbBoxPosition();
 334         this.baseRotateLevel();
 335         this.baseScaleLevel();
 336
 337         this.draw();
 338
 339         this.resize();
 340
 341         this.canvasLoaded = true;
 342
 343     },
 344
 345     setCanvasPosition : function()
 346     {
 347         if(!this.canvasEl){
 348             return;
 349         }
 350
 351         var pw = Math.ceil((this.bodyEl.getWidth() - this.canvasEl.width) / 2);
 352         var ph = Math.ceil((this.bodyEl.getHeight() - this.canvasEl.height) / 2);
 353
 354         this.previewEl.setLeft(pw);
 355         this.previewEl.setTop(ph);
 356     },
 357
 358     onMouseDown : function(e)
 359     {
 360         e.stopEvent();
 361
 362         this.dragable = true;
 363         this.pinching = false;
 364
 365         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 366         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 367
 368     },
 369
 370     onMouseMove : function(e)
 371     {
 372         e.stopEvent();
 373
 374         if(!this.canvasLoaded){
 375             return;
 376         }
 377
 378         if (!this.dragable){
 379             return;
 380         }
 381
 382         var minX = Math.ceil(this.thumbEl.getLeft(true));
 383         var minY = Math.ceil(this.thumbEl.getTop(true));
 384
 385         var maxX = Math.ceil(minX + this.thumbEl.getWidth() - this.canvasEl.width);
 386         var maxY = Math.ceil(minY + this.thumbEl.getHeight() - this.canvasEl.height);
 387
 388         var x = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 389         var y = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 390
 391         x = x - this.mouseX;
 392         y = y - this.mouseY;
 393
 394         var bgX = Math.ceil(x + this.previewEl.getLeft(true));
 395         var bgY = Math.ceil(y + this.previewEl.getTop(true));
 396
 397         bgX = (minX < bgX) ? minX : ((maxX > bgX) ? maxX : bgX);
 398         bgY = (minY < bgY) ? minY : ((maxY > bgY) ? maxY : bgY);
 399
 400         this.previewEl.setLeft(bgX);
 401         this.previewEl.setTop(bgY);
 402
 403         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
 404         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
 405     },
 406
 407     onMouseUp : function(e)
 408     {
 409         e.stopEvent();
 410
 411         this.dragable = false;
 412     },
 413
 414     onMouseWheel : function(e)
 415     {
 416         e.stopEvent();
 417
 418         this.startScale = this.scale;
 419
 420         this.scale = (e.getWheelDelta() == 1) ? (this.scale + 1) : (this.scale - 1);
 421
 422         if(!this.zoomable()){
 423             this.scale = this.startScale;
 424             return;
 425         }
 426
 427         this.draw();
 428
 429         return;
 430     },
 431
 432     zoomable : function()
 433     {
 434         var minScale = this.thumbEl.getWidth() / this.minWidth;
 435
 436         var width = Math.ceil(this.imageEl.OriginWidth * this.getScaleLevel());
 437         var height = Math.ceil(this.imageEl.OriginHeight * this.getScaleLevel());
 438
 439         if(
 440                 (this.rotate == 0 || this.rotate == 180) &&
 441                 (
 442                     width / minScale < this.minWidth ||
 443                     width / minScale > this.imageEl.OriginWidth ||
 444                     height / minScale < this.minHeight ||
 445                     height / minScale > this.imageEl.OriginHeight
 446                 )
 447         ){
 448             return false;
 449         }
 450
 451         if(
 452                 (this.rotate == 90 || this.rotate == 270) &&
 453                 (
 454                     width / minScale < this.minHeight ||
 455                     width / minScale > this.imageEl.OriginWidth ||
 456                     height / minScale < this.minWidth ||
 457                     height / minScale > this.imageEl.OriginHeight
 458                 )
 459         ){
 460             return false;
 461         }
 462
 463         return true;
 464
 465     },
 466
 467     onRotateLeft : function(e)
 468     {
 469         var minScale = this.thumbEl.getWidth() / this.minWidth;
 470
 471         if(this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight()){
 472
 473             var bw = this.canvasEl.width / this.getScaleLevel();
 474             var bh = this.canvasEl.height / this.getScaleLevel();
 475
 476             this.startScale = this.scale;
 477
 478             while (this.getScaleLevel() < minScale){
 479
 480                 this.scale = this.scale + 1;
 481
 482                 if(!this.zoomable()){
 483                     break;
 484                 }
 485
 486                 if(
 487                         bw * this.getScaleLevel() < this.thumbEl.getHeight() ||
 488                         bh * this.getScaleLevel() < this.thumbEl.getWidth()
 489                 ){
 490                     continue;
 491                 }
 492
 493                 this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 494
 495                 this.draw();
 496
 497                 return;
 498             }
 499
 500             this.scale = this.startScale;
 501
 502             this.onRotateFail();
 503
 504             return false;
 505         }
 506
 507         this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
 508
 509         this.draw();
 510
 511     },
 512
 513     onRotateRight : function(e)
 514     {
 515         var minScale = this.thumbEl.getWidth() / this.minWidth;
 516
 517         if(this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight()){
 518
 519             var bw = this.canvasEl.width / this.getScaleLevel();
 520             var bh = this.canvasEl.height / this.getScaleLevel();
 521
 522             this.startScale = this.scale;
 523
 524             while (this.getScaleLevel() < minScale){
 525
 526                 this.scale = this.scale + 1;
 527
 528                 if(!this.zoomable()){
 529                     break;
 530                 }
 531
 532                 if(
 533                         bw * this.getScaleLevel() < this.thumbEl.getHeight() ||
 534                         bh * this.getScaleLevel() < this.thumbEl.getWidth()
 535                 ){
 536                     continue;
 537                 }
 538
 539                 this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 540
 541                 this.draw();
 542
 543                 return;
 544             }
 545
 546             this.scale = this.startScale;
 547
 548             this.onRotateFail();
 549
 550             return false;
 551         }
 552
 553         this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
 554
 555         this.draw();
 556     },
 557
 558     onRotateFail : function()
 559     {
 560         this.errorEl.show(true);
 561
 562         var _this = this;
 563
 564         (function() { _this.errorEl.hide(true); }).defer(this.errorTimeout);
 565     },
 566
 567     draw : function()
 568     {
 569         this.previewEl.dom.innerHTML = '';
 570
 571         var canvasEl = document.createElement("canvas");
 572
 573         var contextEl = canvasEl.getContext("2d");
 574
 575         canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 576         canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 577         var center = this.imageEl.OriginWidth / 2;
 578
 579         if(this.imageEl.OriginWidth < this.imageEl.OriginHeight){
 580             canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 581             canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 582             center = this.imageEl.OriginHeight / 2;
 583         }
 584
 585         contextEl.scale(this.getScaleLevel(), this.getScaleLevel());
 586
 587         contextEl.translate(center, center);
 588         contextEl.rotate(this.rotate * Math.PI / 180);
 589
 590         contextEl.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
 591
 592         this.canvasEl = document.createElement("canvas");
 593
 594         this.contextEl = this.canvasEl.getContext("2d");
 595
 596         switch (this.rotate) {
 597             case 0 :
 598
 599                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 600                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 601
 602                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 603
 604                 break;
 605             case 90 :
 606
 607                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 608                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 609
 610                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 611                     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);
 612                     break;
 613                 }
 614
 615                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 616
 617                 break;
 618             case 180 :
 619
 620                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
 621                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
 622
 623                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 624                     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);
 625                     break;
 626                 }
 627
 628                 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);
 629
 630                 break;
 631             case 270 :
 632
 633                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
 634                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
 635
 636                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 637                     this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
 638                     break;
 639                 }
 640
 641                 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);
 642
 643                 break;
 644             default :
 645                 break;
 646         }
 647
 648         this.previewEl.appendChild(this.canvasEl);
 649
 650         this.setCanvasPosition();
 651     },
 652
 653     crop : function()
 654     {
 655         if(!this.canvasLoaded){
 656             return;
 657         }
 658         var canvas = document.createElement("canvas");
 659
 660         var context = canvas.getContext("2d");
 661
 662         canvas.width = this.minWidth;
 663         canvas.height = this.minHeight;
 664
 665         var cropWidth = this.thumbEl.getWidth();
 666         var cropHeight = this.thumbEl.getHeight();
 667
 668         var x = this.thumbEl.getLeft(true) - this.previewEl.getLeft(true);
 669         var y = this.thumbEl.getTop(true) - this.previewEl.getTop(true);
 670
 671         if(this.canvasEl.width - cropWidth < x){
 672             x = this.canvasEl.width - cropWidth;
 673         }
 674
 675         if(this.canvasEl.height - cropHeight < y){
 676             y = this.canvasEl.height - cropHeight;
 677         }
 678
 679         x = x < 0 ? 0 : x;
 680         y = y < 0 ? 0 : y;
 681
 682         context.drawImage(this.canvasEl, x, y, cropWidth, cropHeight, 0, 0, canvas.width, canvas.height);
 683
 684         this.cropData = canvas.toDataURL(this.cropType);
 685
 686         this.fireEvent('crop', this, this.cropData);
 687
 688     },
 689
 690     setThumbBoxSize : function()
 691     {
 692         var height = 300;
 693         var width = Math.ceil(this.minWidth * height / this.minHeight);
 694
 695         if(this.minWidth > this.minHeight){
 696             width = 300;
 697             height = Math.ceil(this.minHeight * width / this.minWidth);
 698         }
 699
 700         this.thumbEl.setStyle({
 701             width : width + 'px',
 702             height : height + 'px'
 703         });
 704
 705         return;
 706
 707     },
 708
 709     setThumbBoxPosition : function()
 710     {
 711         var x = Math.ceil((this.bodyEl.getWidth() - this.thumbEl.getWidth()) / 2 );
 712         var y = Math.ceil((this.bodyEl.getHeight() - this.thumbEl.getHeight()) / 2);
 713
 714         this.thumbEl.setLeft(x);
 715         this.thumbEl.setTop(y);
 716
 717     },
 718
 719     baseRotateLevel : function()
 720     {
 721         this.baseRotate = 1;
 722
 723         if(
 724                 typeof(this.exif) != 'undefined' &&
 725                 typeof(this.exif[Roo.bootstrap.UploadCropbox['tags']['Orientation']]) != 'undefined' &&
 726                 [1, 3, 6, 8].indexOf(this.exif[Roo.bootstrap.UploadCropbox['tags']['Orientation']]) != -1
 727         ){
 728             this.baseRotate = this.exif[Roo.bootstrap.UploadCropbox['tags']['Orientation']];
 729         }
 730
 731         this.rotate = Roo.bootstrap.UploadCropbox['Orientation'][this.baseRotate];
 732
 733     },
 734
 735     baseScaleLevel : function()
 736     {
 737         var width, height;
 738
 739         if(this.baseRotate == 6 || this.baseRotate == 8){
 740
 741             width = this.thumbEl.getHeight();
 742             this.baseScale = height / this.imageEl.OriginHeight;
 743
 744             if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getWidth()){
 745                 height = this.thumbEl.getWidth();
 746                 this.baseScale = height / this.imageEl.OriginHeight;
 747             }
 748
 749             if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 750                 height = this.thumbEl.getWidth();
 751                 this.baseScale = height / this.imageEl.OriginHeight;
 752
 753                 if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getHeight()){
 754                     width = this.thumbEl.getHeight();
 755                     this.baseScale = width / this.imageEl.OriginWidth;
 756                 }
 757             }
 758
 759             return;
 760         }
 761
 762         width = this.thumbEl.getWidth();
 763         this.baseScale = width / this.imageEl.OriginWidth;
 764
 765         if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getHeight()){
 766             height = this.thumbEl.getHeight();
 767             this.baseScale = height / this.imageEl.OriginHeight;
 768         }
 769
 770
 771         if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
 772
 773             height = this.thumbEl.getHeight();
 774             this.baseScale = height / this.imageEl.OriginHeight;
 775
 776             if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getWidth()){
 777                 width = this.thumbEl.getWidth();
 778                 this.baseScale = width / this.imageEl.OriginWidth;
 779             }
 780
 781         }
 782
 783         return;
 784     },
 785
 786     getScaleLevel : function()
 787     {
 788         return this.baseScale * Math.pow(1.1, this.scale);
 789     },
 790
 791     onTouchStart : function(e)
 792     {
 793         if(!this.canvasLoaded){
 794             this.beforeSelectFile(e);
 795             return;
 796         }
 797
 798         var touches = e.browserEvent.touches;
 799
 800         if(!touches){
 801             return;
 802         }
 803
 804         if(touches.length == 1){
 805             this.onMouseDown(e);
 806             return;
 807         }
 808
 809         if(touches.length != 2){
 810             return;
 811         }
 812
 813         var coords = [];
 814
 815         for(var i = 0, finger; finger = touches[i]; i++){
 816             coords.push(finger.pageX, finger.pageY);
 817         }
 818
 819         var x = Math.pow(coords[0] - coords[2], 2);
 820         var y = Math.pow(coords[1] - coords[3], 2);
 821
 822         this.startDistance = Math.sqrt(x + y);
 823
 824         this.startScale = this.scale;
 825
 826         this.pinching = true;
 827         this.dragable = false;
 828
 829     },
 830
 831     onTouchMove : function(e)
 832     {
 833         if(!this.pinching && !this.dragable){
 834             return;
 835         }
 836
 837         var touches = e.browserEvent.touches;
 838
 839         if(!touches){
 840             return;
 841         }
 842
 843         if(this.dragable){
 844             this.onMouseMove(e);
 845             return;
 846         }
 847
 848         var coords = [];
 849
 850         for(var i = 0, finger; finger = touches[i]; i++){
 851             coords.push(finger.pageX, finger.pageY);
 852         }
 853
 854         var x = Math.pow(coords[0] - coords[2], 2);
 855         var y = Math.pow(coords[1] - coords[3], 2);
 856
 857         this.endDistance = Math.sqrt(x + y);
 858
 859         this.scale = this.startScale + Math.floor(Math.log(this.endDistance / this.startDistance) / Math.log(1.1));
 860
 861         if(!this.zoomable()){
 862             this.scale = this.startScale;
 863             return;
 864         }
 865
 866         this.draw();
 867
 868     },
 869
 870     onTouchEnd : function(e)
 871     {
 872         this.pinching = false;
 873         this.dragable = false;
 874
 875     },
 876
 877     prepare : function(input)
 878     {
 879         this.file = false;
 880         this.exif = {};
 881
 882         if(typeof(input) === 'string'){
 883             this.loadCanvas(input);
 884             return;
 885         }
 886
 887         if(!input.files || !input.files[0] || !this.urlAPI){
 888             return;
 889         }
 890
 891         this.file = input.files[0];
 892         this.cropType = this.file.type;
 893
 894         var _this = this;
 895
 896         if(this.fireEvent('prepare', this, this.file) != false){
 897
 898             var reader = new FileReader();
 899
 900             reader.onload = function (e) {
 901                 if (e.target.error) {
 902                     Roo.log(e.target.error);
 903                     return;
 904                 }
 905
 906                 var buffer = e.target.result,
 907                     dataView = new DataView(buffer),
 908                     offset = 2,
 909                     maxOffset = dataView.byteLength - 4,
 910                     markerBytes,
 911                     markerLength;
 912
 913                 if (dataView.getUint16(0) === 0xffd8) {
 914                     while (offset < maxOffset) {
 915                         markerBytes = dataView.getUint16(offset);
 916
 917                         if ((markerBytes >= 0xffe0 && markerBytes <= 0xffef) || markerBytes === 0xfffe) {
 918                             markerLength = dataView.getUint16(offset + 2) + 2;
 919                             if (offset + markerLength > dataView.byteLength) {
 920                                 Roo.log('Invalid meta data: Invalid segment size.');
 921                                 break;
 922                             }
 923
 924                             if(markerBytes == 0xffe1){
 925                                 _this.parseExifData(
 926                                     dataView,
 927                                     offset,
 928                                     markerLength
 929                                 );
 930                             }
 931
 932                             offset += markerLength;
 933
 934                             continue;
 935                         }
 936
 937                         break;
 938                     }
 939
 940                 }
 941
 942                 var url = _this.urlAPI.createObjectURL(_this.file);
 943
 944                 _this.loadCanvas(url);
 945
 946                 return;
 947             }
 948
 949             reader.readAsArrayBuffer(this.file);
 950
 951         }
 952
 953     },
 954
 955     parseExifData : function(dataView, offset, length)
 956     {
 957         var tiffOffset = offset + 10,
 958             littleEndian,
 959             dirOffset;
 960
 961         if (dataView.getUint32(offset + 4) !== 0x45786966) {
 962             // No Exif data, might be XMP data instead
 963             return;
 964         }
 965
 966         // Check for the ASCII code for "Exif" (0x45786966):
 967         if (dataView.getUint32(offset + 4) !== 0x45786966) {
 968             // No Exif data, might be XMP data instead
 969             return;
 970         }
 971         if (tiffOffset + 8 > dataView.byteLength) {
 972             Roo.log('Invalid Exif data: Invalid segment size.');
 973             return;
 974         }
 975         // Check for the two null bytes:
 976         if (dataView.getUint16(offset + 8) !== 0x0000) {
 977             Roo.log('Invalid Exif data: Missing byte alignment offset.');
 978             return;
 979         }
 980         // Check the byte alignment:
 981         switch (dataView.getUint16(tiffOffset)) {
 982         case 0x4949:
 983             littleEndian = true;
 984             break;
 985         case 0x4D4D:
 986             littleEndian = false;
 987             break;
 988         default:
 989             Roo.log('Invalid Exif data: Invalid byte alignment marker.');
 990             return;
 991         }
 992         // Check for the TIFF tag marker (0x002A):
 993         if (dataView.getUint16(tiffOffset + 2, littleEndian) !== 0x002A) {
 994             Roo.log('Invalid Exif data: Missing TIFF marker.');
 995             return;
 996         }
 997         // Retrieve the directory offset bytes, usually 0x00000008 or 8 decimal:
 998         dirOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
 999
1000         this.parseExifTags(
1001             dataView,
1002             tiffOffset,
1003             tiffOffset + dirOffset,
1004             littleEndian
1005         );
1006     },
1007
1008     parseExifTags : function(dataView, tiffOffset, dirOffset, littleEndian)
1009     {
1010         var tagsNumber,
1011             dirEndOffset,
1012             i;
1013         if (dirOffset + 6 > dataView.byteLength) {
1014             Roo.log('Invalid Exif data: Invalid directory offset.');
1015             return;
1016         }
1017         tagsNumber = dataView.getUint16(dirOffset, littleEndian);
1018         dirEndOffset = dirOffset + 2 + 12 * tagsNumber;
1019         if (dirEndOffset + 4 > dataView.byteLength) {
1020             Roo.log('Invalid Exif data: Invalid directory size.');
1021             return;
1022         }
1023         for (i = 0; i < tagsNumber; i += 1) {
1024             this.parseExifTag(
1025                 dataView,
1026                 tiffOffset,
1027                 dirOffset + 2 + 12 * i, // tag offset
1028                 littleEndian
1029             );
1030         }
1031         // Return the offset to the next directory:
1032         return dataView.getUint32(dirEndOffset, littleEndian);
1033     },
1034
1035     parseExifTag : function (dataView, tiffOffset, offset, littleEndian)
1036     {
1037         var tag = dataView.getUint16(offset, littleEndian);
1038
1039         this.exif[tag] = this.getExifValue(
1040             dataView,
1041             tiffOffset,
1042             offset,
1043             dataView.getUint16(offset + 2, littleEndian), // tag type
1044             dataView.getUint32(offset + 4, littleEndian), // tag length
1045             littleEndian
1046         );
1047     },
1048
1049     getExifValue : function (dataView, tiffOffset, offset, type, length, littleEndian)
1050     {
1051         var tagType = Roo.bootstrap.UploadCropbox.exifTagTypes[type],
1052             tagSize,
1053             dataOffset,
1054             values,
1055             i,
1056             str,
1057             c;
1058
1059         if (!tagType) {
1060             Roo.log('Invalid Exif data: Invalid tag type.');
1061             return;
1062         }
1063
1064         tagSize = tagType.size * length;
1065         // Determine if the value is contained in the dataOffset bytes,
1066         // or if the value at the dataOffset is a pointer to the actual data:
1067         dataOffset = tagSize > 4 ?
1068                 tiffOffset + dataView.getUint32(offset + 8, littleEndian) : (offset + 8);
1069         if (dataOffset + tagSize > dataView.byteLength) {
1070             Roo.log('Invalid Exif data: Invalid data offset.');
1071             return;
1072         }
1073         if (length === 1) {
1074             return tagType.getValue(dataView, dataOffset, littleEndian);
1075         }
1076         values = [];
1077         for (i = 0; i < length; i += 1) {
1078             values[i] = tagType.getValue(dataView, dataOffset + i * tagType.size, littleEndian);
1079         }
1080
1081         if (tagType.ascii) {
1082             str = '';
1083             // Concatenate the chars:
1084             for (i = 0; i < values.length; i += 1) {
1085                 c = values[i];
1086                 // Ignore the terminating NULL byte(s):
1087                 if (c === '\u0000') {
1088                     break;
1089                 }
1090                 str += c;
1091             }
1092             return str;
1093         }
1094         return values;
1095     }
1096
1097 });
1098
1099 Roo.apply(Roo.bootstrap.UploadCropbox, {
1100     tags : {
1101         'Orientation': 0x0112
1102     },
1103
1104     Orientation: {
1105             1: 0, //'top-left',
1106 //            2: 'top-right',
1107             3: 180, //'bottom-right',
1108 //            4: 'bottom-left',
1109 //            5: 'left-top',
1110             6: 90, //'right-top',
1111 //            7: 'right-bottom',
1112             8: 270 //'left-bottom'
1113     },
1114
1115     exifTagTypes : {
1116         // byte, 8-bit unsigned int:
1117         1: {
1118             getValue: function (dataView, dataOffset) {
1119                 return dataView.getUint8(dataOffset);
1120             },
1121             size: 1
1122         },
1123         // ascii, 8-bit byte:
1124         2: {
1125             getValue: function (dataView, dataOffset) {
1126                 return String.fromCharCode(dataView.getUint8(dataOffset));
1127             },
1128             size: 1,
1129             ascii: true
1130         },
1131         // short, 16 bit int:
1132         3: {
1133             getValue: function (dataView, dataOffset, littleEndian) {
1134                 return dataView.getUint16(dataOffset, littleEndian);
1135             },
1136             size: 2
1137         },
1138         // long, 32 bit int:
1139         4: {
1140             getValue: function (dataView, dataOffset, littleEndian) {
1141                 return dataView.getUint32(dataOffset, littleEndian);
1142             },
1143             size: 4
1144         },
1145         // rational = two long values, first is numerator, second is denominator:
1146         5: {
1147             getValue: function (dataView, dataOffset, littleEndian) {
1148                 return dataView.getUint32(dataOffset, littleEndian) /
1149                     dataView.getUint32(dataOffset + 4, littleEndian);
1150             },
1151             size: 8
1152         },
1153         // slong, 32 bit signed int:
1154         9: {
1155             getValue: function (dataView, dataOffset, littleEndian) {
1156                 return dataView.getInt32(dataOffset, littleEndian);
1157             },
1158             size: 4
1159         },
1160         // srational, two slongs, first is numerator, second is denominator:
1161         10: {
1162             getValue: function (dataView, dataOffset, littleEndian) {
1163                 return dataView.getInt32(dataOffset, littleEndian) /
1164                     dataView.getInt32(dataOffset + 4, littleEndian);
1165             },
1166             size: 8
1167         }
1168     },
1169
1170     footer : {
1171         STANDARD : [
1172             {
1173                 tag : 'div',
1174                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1175                 action : 'rotate-left',
1176                 cn : [
1177                     {
1178                         tag : 'button',
1179                         cls : 'btn btn-default',
1180                         html : '<i class="fa fa-undo"></i>'
1181                     }
1182                 ]
1183             },
1184             {
1185                 tag : 'div',
1186                 cls : 'btn-group roo-upload-cropbox-picture',
1187                 action : 'picture',
1188                 cn : [
1189                     {
1190                         tag : 'button',
1191                         cls : 'btn btn-default',
1192                         html : '<i class="fa fa-picture-o"></i>'
1193                     }
1194                 ]
1195             },
1196             {
1197                 tag : 'div',
1198                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1199                 action : 'rotate-right',
1200                 cn : [
1201                     {
1202                         tag : 'button',
1203                         cls : 'btn btn-default',
1204                         html : '<i class="fa fa-repeat"></i>'
1205                     }
1206                 ]
1207             }
1208         ],
1209         DOCUMENT : [
1210             {
1211                 tag : 'div',
1212                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1213                 action : 'rotate-left',
1214                 cn : [
1215                     {
1216                         tag : 'button',
1217                         cls : 'btn btn-default',
1218                         html : '<i class="fa fa-undo"></i>'
1219                     }
1220                 ]
1221             },
1222             {
1223                 tag : 'div',
1224                 cls : 'btn-group roo-upload-cropbox-download',
1225                 action : 'download',
1226                 cn : [
1227                     {
1228                         tag : 'button',
1229                         cls : 'btn btn-default',
1230                         html : '<i class="fa fa-download"></i>'
1231                     }
1232                 ]
1233             },
1234             {
1235                 tag : 'div',
1236                 cls : 'btn-group roo-upload-cropbox-crop',
1237                 action : 'crop',
1238                 cn : [
1239                     {
1240                         tag : 'button',
1241                         cls : 'btn btn-default',
1242                         html : '<i class="fa fa-crop"></i>'
1243                     }
1244                 ]
1245             },
1246             {
1247                 tag : 'div',
1248                 cls : 'btn-group roo-upload-cropbox-trash',
1249                 action : 'trash',
1250                 cn : [
1251                     {
1252                         tag : 'button',
1253                         cls : 'btn btn-default',
1254                         html : '<i class="fa fa-trash"></i>'
1255                     }
1256                 ]
1257             },
1258             {
1259                 tag : 'div',
1260                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1261                 action : 'rotate-right',
1262                 cn : [
1263                     {
1264                         tag : 'button',
1265                         cls : 'btn btn-default',
1266                         html : '<i class="fa fa-repeat"></i>'
1267                     }
1268                 ]
1269             }
1270         ]
1271     }
1272 });