Roo/dialog/UploadCropbox.js
[roojs1] / 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 {Array} buttons default ['rotateLeft', 'pictureBtn', 'rotateRight']
16  * @cfg {Boolean} isDocument (true|false) default false
17  * @cfg {String} url action url
18  * @cfg {String} paramName default 'imageUpload'
19  * @cfg {String} method default POST
20  * @cfg {Boolean} loadMask (true|false) default true
21  * @cfg {Boolean} loadingText default 'Loading...'
22  * 
23  * @constructor
24  * Create a new UploadCropbox
25  * @param {Object} config The config object
26  */
27
28  Roo.dialog.UploadCropbox = function(config){
29     Roo.dialog.UploadCropbox.superclass.constructor.call(this, config);
30     
31     this.addEvents({
32         /**
33          * @event beforeselectfile
34          * Fire before select file
35          * @param {Roo.dialog.UploadCropbox} this
36          */
37         "beforeselectfile" : true,
38         /**
39          * @event initial
40          * Fire after initEvent
41          * @param {Roo.dialog.UploadCropbox} this
42          */
43         "initial" : true,
44         /**
45          * @event crop
46          * Fire after initEvent
47          * @param {Roo.dialog.UploadCropbox} this
48          * @param {String} data
49          */
50         "crop" : true,
51         /**
52          * @event prepare
53          * Fire when preparing the file data
54          * @param {Roo.dialog.UploadCropbox} this
55          * @param {Object} file
56          */
57         "prepare" : true,
58         /**
59          * @event exception
60          * Fire when get exception
61          * @param {Roo.dialog.UploadCropbox} this
62          * @param {XMLHttpRequest} xhr
63          */
64         "exception" : true,
65         /**
66          * @event beforeloadcanvas
67          * Fire before load the canvas
68          * @param {Roo.dialog.UploadCropbox} this
69          * @param {String} src
70          */
71         "beforeloadcanvas" : true,
72         /**
73          * @event trash
74          * Fire when trash image
75          * @param {Roo.dialog.UploadCropbox} this
76          */
77         "trash" : true,
78         /**
79          * @event download
80          * Fire when download the image
81          * @param {Roo.dialog.UploadCropbox} this
82          */
83         "download" : true,
84         /**
85          * @event footerbuttonclick
86          * Fire when footerbuttonclick
87          * @param {Roo.dialog.UploadCropbox} this
88          * @param {String} type
89          */
90         "footerbuttonclick" : true,
91         /**
92          * @event resize
93          * Fire when resize
94          * @param {Roo.dialog.UploadCropbox} this
95          */
96         "resize" : true,
97         /**
98          * @event rotate
99          * Fire when rotate the image
100          * @param {Roo.dialog.UploadCropbox} this
101          * @param {String} pos
102          */
103         "rotate" : true,
104         /**
105          * @event inspect
106          * Fire when inspect the file
107          * @param {Roo.dialog.UploadCropbox} this
108          * @param {Object} file
109          */
110         "inspect" : true,
111         /**
112          * @event upload
113          * Fire when xhr upload the file
114          * @param {Roo.dialog.UploadCropbox} this
115          * @param {Object} data
116          */
117         "upload" : true,
118         /**
119          * @event arrange
120          * Fire when arrange the file data
121          * @param {Roo.dialog.UploadCropbox} this
122          * @param {Object} formData
123          */
124         "arrange" : true,
125         /**
126          * @event loadcanvas
127          * Fire after load the canvas
128          * @param {Roo.dialog.UploadCropbox}
129          * @param {Object} imgEl
130          */
131         "loadcanvas" : true
132     });
133     
134     this.buttons = this.buttons || Roo.dialog.UploadCropbox.footer.STANDARD;
135 };
136
137 Roo.extend(Roo.dialog.UploadCropbox, Roo.Component,  {
138     
139     emptyText : 'Click to upload image',
140     rotateNotify : 'Image is too small to rotate',
141     errorTimeout : 3000,
142     scale : 0,
143     baseScale : 1,
144     rotate : 0,
145     dragable : false,
146     pinching : false,
147     mouseX : 0,
148     mouseY : 0,
149     cropData : false,
150     minWidth : 300,
151     minHeight : 300,
152     file : false,
153     exif : {},
154     baseRotate : 1,
155     cropType : 'image/jpeg',
156     buttons : false,
157     canvasLoaded : false,
158     isDocument : false,
159     method : 'POST',
160     paramName : 'imageUpload',
161     loadMask : true,
162     loadingText : 'Loading...',
163     maskEl : false,
164     
165     getAutoCreate : function()
166     {
167         var cfg = {
168             tag : 'div',
169             cls : 'roo-upload-cropbox',
170             cn : [
171                 {
172                     tag : 'input',
173                     cls : 'roo-upload-cropbox-selector',
174                     type : 'file'
175                 },
176                 {
177                     tag : 'div',
178                     cls : 'roo-upload-cropbox-body',
179                     style : 'cursor:pointer',
180                     cn : [
181                         {
182                             tag : 'div',
183                             cls : 'roo-upload-cropbox-preview'
184                         },
185                         {
186                             tag : 'div',
187                             cls : 'roo-upload-cropbox-thumb'
188                         },
189                         {
190                             tag : 'div',
191                             cls : 'roo-upload-cropbox-empty-notify',
192                             html : this.emptyText
193                         },
194                         {
195                             tag : 'div',
196                             cls : 'roo-upload-cropbox-error-notify alert alert-danger',
197                             html : this.rotateNotify
198                         }
199                     ]
200                 },
201                 {
202                     tag : 'div',
203                     cls : 'roo-upload-cropbox-footer',
204                     cn : {
205                         tag : 'div',
206                         cls : 'btn-group btn-group-justified roo-upload-cropbox-btn-group',
207                         cn : []
208                     }
209                 }
210             ]
211         };
212         
213         return cfg;
214     },
215     
216     onRender : function(ct, position)
217     {
218         Roo.dialog.UploadCropbox.superclass.onRender.call(this, ct, position);
219
220         if(this.el){
221             if (this.el.attr('xtype')) {
222                 this.el.attr('xtypex', this.el.attr('xtype'));
223                 this.el.dom.removeAttribute('xtype');
224                 
225                 this.initEvents();
226             }
227         }
228         else {
229             var cfg = Roo.apply({},  this.getAutoCreate());
230         
231             cfg.id = this.id || Roo.id();
232             
233             if (this.cls) {
234                 cfg.cls = (typeof(cfg.cls) == 'undefined' ? this.cls : cfg.cls) + ' ' + this.cls;
235             }
236             
237             if (this.style) { // fixme needs to support more complex style data.
238                 cfg.style = (typeof(cfg.style) == 'undefined' ? this.style : cfg.style) + '; ' + this.style;
239             }
240             
241             this.el = ct.createChild(cfg, position);
242             
243             this.initEvents();
244         }
245         
246         if (this.buttons.length) {
247             
248             Roo.each(this.buttons, function(bb) {
249                 
250                 var btn = this.el.select('.roo-upload-cropbox-footer div.roo-upload-cropbox-btn-group').first().createChild(bb);
251                 
252                 btn.on('click', this.onFooterButtonClick.createDelegate(this, [bb.action], true));
253                 
254             }, this);
255         }
256         
257         if(this.loadMask){
258             this.maskEl = this.el;
259         }
260     },
261     
262     initEvents : function()
263     {
264         this.urlAPI = (window.createObjectURL && window) || 
265                                 (window.URL && URL.revokeObjectURL && URL) || 
266                                 (window.webkitURL && webkitURL);
267                         
268         this.bodyEl = this.el.select('.roo-upload-cropbox-body', true).first();
269         this.bodyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
270         
271         this.selectorEl = this.el.select('.roo-upload-cropbox-selector', true).first();
272         this.selectorEl.hide();
273         
274         this.previewEl = this.el.select('.roo-upload-cropbox-preview', true).first();
275         this.previewEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
276         
277         this.thumbEl = this.el.select('.roo-upload-cropbox-thumb', true).first();
278         this.thumbEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
279         this.thumbEl.hide();
280         
281         this.notifyEl = this.el.select('.roo-upload-cropbox-empty-notify', true).first();
282         this.notifyEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
283         
284         this.errorEl = this.el.select('.roo-upload-cropbox-error-notify', true).first();
285         this.errorEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
286         this.errorEl.hide();
287         
288         this.footerEl = this.el.select('.roo-upload-cropbox-footer', true).first();
289         this.footerEl.setVisibilityMode(Roo.Element.DISPLAY).originalDisplay = 'block';
290         this.footerEl.hide();
291         
292         this.setThumbBoxSize();
293         
294         this.bind();
295         
296         this.resize();
297         
298         this.fireEvent('initial', this);
299     },
300
301     bind : function()
302     {
303         var _this = this;
304         
305         window.addEventListener("resize", function() { _this.resize(); } );
306         
307         this.bodyEl.on('click', this.beforeSelectFile, this);
308         
309         if(Roo.isTouch){
310             this.bodyEl.on('touchstart', this.onTouchStart, this);
311             this.bodyEl.on('touchmove', this.onTouchMove, this);
312             this.bodyEl.on('touchend', this.onTouchEnd, this);
313         }
314         
315         if(!Roo.isTouch){
316             this.bodyEl.on('mousedown', this.onMouseDown, this);
317             this.bodyEl.on('mousemove', this.onMouseMove, this);
318             var mousewheel = (/Firefox/i.test(navigator.userAgent))? 'DOMMouseScroll' : 'mousewheel';
319             this.bodyEl.on(mousewheel, this.onMouseWheel, this);
320             Roo.get(document).on('mouseup', this.onMouseUp, this);
321         }
322         
323         this.selectorEl.on('change', this.onFileSelected, this);
324     },
325     
326     reset : function()
327     {    
328         this.scale = 0;
329         this.baseScale = 1;
330         this.rotate = 0;
331         this.baseRotate = 1;
332         this.dragable = false;
333         this.pinching = false;
334         this.mouseX = 0;
335         this.mouseY = 0;
336         this.cropData = false;
337         this.notifyEl.dom.innerHTML = this.emptyText;
338         
339         // this.selectorEl.dom.value = '';
340         
341     },
342     
343     resize : function()
344     {
345         if(this.fireEvent('resize', this) != false){
346             this.setThumbBoxPosition();
347             this.setCanvasPosition();
348         }
349     },
350     
351     onFooterButtonClick : function(e, el, o, type)
352     {
353         switch (type) {
354             case 'rotate-left' :
355                 this.onRotateLeft(e);
356                 break;
357             case 'rotate-right' :
358                 this.onRotateRight(e);
359                 break;
360             case 'picture' :
361                 this.beforeSelectFile(e);
362                 break;
363             case 'trash' :
364                 this.trash(e);
365                 break;
366             case 'crop' :
367                 this.crop(e);
368                 break;
369             case 'download' :
370                 this.download(e);
371                 break;
372             default :
373                 break;
374         }
375         
376         this.fireEvent('footerbuttonclick', this, type);
377     },
378     
379     beforeSelectFile : function(e)
380     {
381         e.preventDefault();
382         
383         if(this.fireEvent('beforeselectfile', this) != false){
384             this.selectorEl.dom.click();
385         }
386     },
387     
388     onFileSelected : function(e)
389     {
390         e.preventDefault();
391         
392         if(typeof(this.selectorEl.dom.files) == 'undefined' || !this.selectorEl.dom.files.length){
393             return;
394         }
395         
396         var file = this.selectorEl.dom.files[0];
397         
398         if(this.fireEvent('inspect', this, file) != false){
399             this.prepare(file);
400         }
401         
402     },
403     
404     trash : function(e)
405     {
406         this.fireEvent('trash', this);
407     },
408     
409     download : function(e)
410     {
411         this.fireEvent('download', this);
412     },
413     
414     loadCanvas : function(src)
415     {   
416         if(this.fireEvent('beforeloadcanvas', this, src) != false){
417             
418             this.reset();
419             
420             this.imageEl = document.createElement('img');
421             
422             var _this = this;
423             
424             this.imageEl.addEventListener("load", function(){ _this.onLoadCanvas(); });
425             
426             this.imageEl.src = src;
427         }
428     },
429     
430     onLoadCanvas : function()
431     {   
432         this.imageEl.OriginWidth = this.imageEl.naturalWidth || this.imageEl.width;
433         this.imageEl.OriginHeight = this.imageEl.naturalHeight || this.imageEl.height;
434
435         if(this.fireEvent('loadcanvas', this, this.imageEl) != false){
436         
437             this.bodyEl.un('click', this.beforeSelectFile, this);
438             
439             this.notifyEl.hide();
440             this.thumbEl.show();
441             this.footerEl.show();
442             
443             this.baseRotateLevel();
444             
445             if(this.isDocument){
446                 this.setThumbBoxSize();
447             }
448             
449             this.setThumbBoxPosition();
450             
451             this.baseScaleLevel();
452             
453             this.draw();
454             
455             this.resize();
456             
457             this.canvasLoaded = true;
458         
459         }
460         
461         if(this.loadMask){
462             this.maskEl.unmask();
463         }
464         
465     },
466     
467     setCanvasPosition : function()
468     {   
469         if(!this.canvasEl){
470             return;
471         }
472         
473         var pw = Math.ceil((this.bodyEl.getWidth() - this.canvasEl.width) / 2);
474         var ph = Math.ceil((this.bodyEl.getHeight() - this.canvasEl.height) / 2);
475         
476         this.previewEl.setLeft(pw);
477         this.previewEl.setTop(ph);
478         
479     },
480     
481     onMouseDown : function(e)
482     {   
483         e.stopEvent();
484         
485         this.dragable = true;
486         this.pinching = false;
487         
488         if(this.isDocument && (this.canvasEl.width < this.thumbEl.getWidth() || this.canvasEl.height < this.thumbEl.getHeight())){
489             this.dragable = false;
490             return;
491         }
492         
493         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
494         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
495         
496     },
497     
498     onMouseMove : function(e)
499     {   
500         e.stopEvent();
501         
502         if(!this.canvasLoaded){
503             return;
504         }
505         
506         if (!this.dragable){
507             return;
508         }
509         
510         var minX = Math.ceil(this.thumbEl.getLeft(true));
511         var minY = Math.ceil(this.thumbEl.getTop(true));
512         
513         var maxX = Math.ceil(minX + this.thumbEl.getWidth() - this.canvasEl.width);
514         var maxY = Math.ceil(minY + this.thumbEl.getHeight() - this.canvasEl.height);
515
516         if(minX > maxX) {
517             var tempX = minX;
518             minX = maxX;
519             maxX = tempX;
520         }
521
522         if(minY > maxY) {
523             var tempY = minY;
524             minY = maxY;
525             maxY = tempY;
526         }
527
528         var x = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
529         var y = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
530         
531         x = x - this.mouseX;
532         y = y - this.mouseY;
533
534         var bgX = Math.ceil(x + this.previewEl.getLeft(true));
535         var bgY = Math.ceil(y + this.previewEl.getTop(true));
536         
537         bgX = (bgX < minX) ? minX : ((bgX > maxX) ? maxX : bgX);
538         bgY = (bgY < minY) ? minY : ((bgY > maxY) ? maxY : bgY);
539         
540         this.previewEl.setLeft(bgX);
541         this.previewEl.setTop(bgY);
542         
543         this.mouseX = Roo.isTouch ? e.browserEvent.touches[0].pageX : e.getPageX();
544         this.mouseY = Roo.isTouch ? e.browserEvent.touches[0].pageY : e.getPageY();
545     },
546     
547     onMouseUp : function(e)
548     {   
549         e.stopEvent();
550         
551         this.dragable = false;
552     },
553     
554     onMouseWheel : function(e)
555     {   
556         e.stopEvent();
557         
558         this.startScale = this.scale;
559         this.scale = (e.getWheelDelta() == 1) ? (this.scale + 1) : (this.scale - 1);
560         
561         if(!this.zoomable()){
562             this.scale = this.startScale;
563             return;
564         }
565
566         
567         this.draw();
568         
569         return;
570     },
571     
572     zoomable : function()
573     {
574         var minScale = this.thumbEl.getWidth() / this.minWidth;
575         
576         if(this.minWidth < this.minHeight){
577             minScale = this.thumbEl.getHeight() / this.minHeight;
578         }
579         
580         var width = Math.ceil(this.imageEl.OriginWidth * this.getScaleLevel() / minScale);
581         var height = Math.ceil(this.imageEl.OriginHeight * this.getScaleLevel() / minScale);
582
583         console.log("ZOOM");
584         console.log("WIDTH: " + (this.thumbEl.getWidth() / this.getScaleLevel()));
585         console.log("HEIGHT: " + (this.thumbEl.getHeight() / this.getScaleLevel()));
586
587
588         var maxWidth = this.imageEl.OriginWidth;
589         var maxHeight = this.imageEl.OriginHeight;
590         
591         if(
592                 this.isDocument &&
593                 (this.rotate == 0 || this.rotate == 180) && 
594                 (
595                     width > this.imageEl.OriginWidth || 
596                     height > this.imageEl.OriginHeight ||
597                     (width < this.minWidth && height < this.minHeight)
598                 )
599         ){
600             return false;
601         }
602         
603         if(
604                 this.isDocument &&
605                 (this.rotate == 90 || this.rotate == 270) && 
606                 (
607                     width > this.imageEl.OriginWidth || 
608                     height > this.imageEl.OriginHeight ||
609                     (width < this.minHeight && height < this.minWidth)
610                 )
611         ){
612             return false;
613         }
614         
615         if(
616                 !this.isDocument &&
617                 (this.rotate == 0 || this.rotate == 180) && 
618                 (
619                     (this.imageEl.OriginWidth >= this.minWidth) && width < this.minWidth ||
620                     (this.imageEl.OriginHeight >= this.minHeight) && height < this.minHeight ||
621                     width > maxWidth ||
622                     height > maxHeight
623                 )
624         ){
625             return false;
626         }
627         
628         if(
629                 !this.isDocument &&
630                 (this.rotate == 90 || this.rotate == 270) && 
631                 (
632                     width < this.minHeight || 
633                     width > this.imageEl.OriginWidth || 
634                     height < this.minWidth || 
635                     height > this.imageEl.OriginHeight
636                 )
637         ){
638             return false;
639         }
640         
641         return true;
642         
643     },
644     
645     onRotateLeft : function(e)
646     {   
647         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
648             
649             var minScale = this.thumbEl.getWidth() / this.minWidth;
650             
651             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
652             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
653             
654             this.startScale = this.scale;
655             
656             while (this.getScaleLevel() < minScale){
657             
658                 this.scale = this.scale + 1;
659                 
660                 if(!this.zoomable()){
661                     break;
662                 }
663                 
664                 if(
665                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
666                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
667                 ){
668                     continue;
669                 }
670                 
671                 this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
672
673                 this.draw();
674                 
675                 return;
676             }
677             
678             this.scale = this.startScale;
679             
680             this.onRotateFail();
681             
682             return false;
683         }
684         
685         this.rotate = (this.rotate < 90) ? 270 : this.rotate - 90;
686
687         if(this.isDocument){
688             this.setThumbBoxSize();
689             this.setThumbBoxPosition();
690             this.setCanvasPosition();
691         }
692         
693         this.draw();
694         
695         this.fireEvent('rotate', this, 'left');
696         
697     },
698     
699     onRotateRight : function(e)
700     {
701         if(!this.isDocument && (this.canvasEl.height < this.thumbEl.getWidth() || this.canvasEl.width < this.thumbEl.getHeight())){
702             
703             var minScale = this.thumbEl.getWidth() / this.minWidth;
704         
705             var bw = Math.ceil(this.canvasEl.width / this.getScaleLevel());
706             var bh = Math.ceil(this.canvasEl.height / this.getScaleLevel());
707             
708             this.startScale = this.scale;
709             
710             while (this.getScaleLevel() < minScale){
711             
712                 this.scale = this.scale + 1;
713                 
714                 if(!this.zoomable()){
715                     break;
716                 }
717                 
718                 if(
719                         Math.ceil(bw * this.getScaleLevel()) < this.thumbEl.getHeight() ||
720                         Math.ceil(bh * this.getScaleLevel()) < this.thumbEl.getWidth()
721                 ){
722                     continue;
723                 }
724                 
725                 this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
726
727                 this.draw();
728                 
729                 return;
730             }
731             
732             this.scale = this.startScale;
733             
734             this.onRotateFail();
735             
736             return false;
737         }
738         
739         this.rotate = (this.rotate > 180) ? 0 : this.rotate + 90;
740
741         if(this.isDocument){
742             this.setThumbBoxSize();
743             this.setThumbBoxPosition();
744             this.setCanvasPosition();
745         }
746         
747         this.draw();
748         
749         this.fireEvent('rotate', this, 'right');
750     },
751     
752     onRotateFail : function()
753     {
754         this.errorEl.show(true);
755         
756         var _this = this;
757         
758         (function() { _this.errorEl.hide(true); }).defer(this.errorTimeout);
759     },
760     
761     draw : function()
762     {
763         this.previewEl.dom.innerHTML = '';
764         
765         var canvasEl = document.createElement("canvas");
766         
767         var contextEl = canvasEl.getContext("2d");
768         
769         canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
770         canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
771         var center = this.imageEl.OriginWidth / 2;
772         
773         if(this.imageEl.OriginWidth < this.imageEl.OriginHeight){
774             canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
775             canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
776             center = this.imageEl.OriginHeight / 2;
777         }
778         
779         contextEl.scale(this.getScaleLevel(), this.getScaleLevel());
780         
781         contextEl.translate(center, center);
782         contextEl.rotate(this.rotate * Math.PI / 180);
783
784         contextEl.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
785         
786         this.canvasEl = document.createElement("canvas");
787         
788         this.contextEl = this.canvasEl.getContext("2d");
789         
790         switch (this.rotate) {
791             case 0 :
792                 
793                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
794                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
795                 
796                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
797                 
798                 break;
799             case 90 : 
800                 
801                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
802                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
803                 
804                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
805                     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);
806                     break;
807                 }
808                 
809                 this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
810                 
811                 break;
812             case 180 :
813                 
814                 this.canvasEl.width = this.imageEl.OriginWidth * this.getScaleLevel();
815                 this.canvasEl.height = this.imageEl.OriginHeight * this.getScaleLevel();
816                 
817                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
818                     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);
819                     break;
820                 }
821                 
822                 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);
823                 
824                 break;
825             case 270 :
826                 
827                 this.canvasEl.width = this.imageEl.OriginHeight * this.getScaleLevel();
828                 this.canvasEl.height = this.imageEl.OriginWidth * this.getScaleLevel();
829         
830                 if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
831                     this.contextEl.drawImage(canvasEl, 0, 0, this.canvasEl.width, this.canvasEl.height, 0, 0, this.canvasEl.width, this.canvasEl.height);
832                     break;
833                 }
834                 
835                 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);
836                 
837                 break;
838             default : 
839                 break;
840         }
841         
842         this.previewEl.appendChild(this.canvasEl);
843         
844         this.setCanvasPosition();
845     },
846     
847     crop : function()
848     {
849         console.log("CROP");
850         if(!this.canvasLoaded){
851             return;
852         }
853         
854         var imageCanvas = document.createElement("canvas");
855         
856         var imageContext = imageCanvas.getContext("2d");
857         
858         imageCanvas.width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
859         imageCanvas.height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? this.imageEl.OriginWidth : this.imageEl.OriginHeight;
860
861         console.log("IMAGECANVAS WIDTH: " + imageCanvas.width);
862         console.log("IMAGECANVAS HEIGHT: " + imageCanvas.height);
863         
864         var center = imageCanvas.width / 2;
865         
866         imageContext.translate(center, center);
867         
868         imageContext.rotate(this.rotate * Math.PI / 180);
869         
870         imageContext.drawImage(this.imageEl, 0, 0, this.imageEl.OriginWidth, this.imageEl.OriginHeight, center * -1, center * -1, this.imageEl.OriginWidth, this.imageEl.OriginHeight);
871         
872         var canvas = document.createElement("canvas");
873         
874         var context = canvas.getContext("2d");
875
876         canvas.width = this.thumbEl.getWidth() / this.getScaleLevel();
877         
878         canvas.height = this.thumbEl.getHeight() / this.getScaleLevel();
879
880         console.log("CANVAS WIDTH: " + canvas.width);
881         console.log("CANVAS HEIGHT: " + canvas.height);
882
883         console.log("SCALELEVLE: " + scaleLevel);
884
885         switch (this.rotate) {
886             case 0 :
887                 
888                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
889                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
890
891                 console.log("WIDTH: " + width);
892                 console.log("HEIGHT: " + height);
893                 
894                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
895                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
896
897                 console.log("X: " + x);
898                 console.log("Y: " + y);
899                 
900                 // var targetWidth = this.minWidth - 2 * x;
901                 // var targetHeight = this.minHeight - 2 * y;
902
903                 // console.log("targetWidth: " + targetWidth);
904                 // console.log("targetHeight: " + targetHeight);
905                 
906                 // var scale = 1;
907                 
908                 // if((x == 0 && y == 0) || (x == 0 && y > 0)){
909                 //     scale = targetWidth / width;
910                 // }
911                 
912                 // if(x > 0 && y == 0){
913                 //     scale = targetHeight / height;
914                 // }
915                 
916                 // if(x > 0 && y > 0){
917                 //     scale = targetWidth / width;
918                     
919                 //     if(width < height){
920                 //         scale = targetHeight / height;
921                 //     }
922                 // }
923
924                 // console.log("scale: " + scale);
925                 
926                 // context.scale(scale, scale);
927                 
928                 var sx = this.thumbEl.getLeft(true) - this.previewEl.getLeft(true);
929                 var sy = this.thumbEl.getTop(true) - this.previewEl.getTop(true);
930
931                 console.log("sx: " + sx);
932                 console.log("sy: " + sy);
933
934                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
935                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
936
937                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
938                 
939                 break;
940             case 90 : 
941                 
942                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
943                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
944                 
945                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
946                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
947                 
948                 var targetWidth = this.minWidth - 2 * x;
949                 var targetHeight = this.minHeight - 2 * y;
950                 
951                 var scale = 1;
952                 
953                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
954                     scale = targetWidth / width;
955                 }
956                 
957                 if(x > 0 && y == 0){
958                     scale = targetHeight / height;
959                 }
960                 
961                 if(x > 0 && y > 0){
962                     scale = targetWidth / width;
963                     
964                     if(width < height){
965                         scale = targetHeight / height;
966                     }
967                 }
968                 
969                 context.scale(scale, scale);
970                 
971                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
972                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
973
974                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
975                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
976                 
977                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
978                 
979                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
980                 
981                 break;
982             case 180 :
983                 
984                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getWidth() / this.getScaleLevel());
985                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getHeight() / this.getScaleLevel());
986                 
987                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
988                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
989                 
990                 var targetWidth = this.minWidth - 2 * x;
991                 var targetHeight = this.minHeight - 2 * y;
992                 
993                 var scale = 1;
994                 
995                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
996                     scale = targetWidth / width;
997                 }
998                 
999                 if(x > 0 && y == 0){
1000                     scale = targetHeight / height;
1001                 }
1002                 
1003                 if(x > 0 && y > 0){
1004                     scale = targetWidth / width;
1005                     
1006                     if(width < height){
1007                         scale = targetHeight / height;
1008                     }
1009                 }
1010                 
1011                 context.scale(scale, scale);
1012                 
1013                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1014                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1015
1016                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1017                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1018
1019                 sx += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1020                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight) : 0;
1021                 
1022                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1023                 
1024                 break;
1025             case 270 :
1026                 
1027                 var width = (this.thumbEl.getWidth() / this.getScaleLevel() > this.imageEl.OriginHeight) ? this.imageEl.OriginHeight : (this.thumbEl.getWidth() / this.getScaleLevel());
1028                 var height = (this.thumbEl.getHeight() / this.getScaleLevel() > this.imageEl.OriginWidth) ? this.imageEl.OriginWidth : (this.thumbEl.getHeight() / this.getScaleLevel());
1029                 
1030                 var x = (this.thumbEl.getLeft(true) > this.previewEl.getLeft(true)) ? 0 : ((this.previewEl.getLeft(true) - this.thumbEl.getLeft(true)) / this.getScaleLevel());
1031                 var y = (this.thumbEl.getTop(true) > this.previewEl.getTop(true)) ? 0 : ((this.previewEl.getTop(true) - this.thumbEl.getTop(true)) / this.getScaleLevel());
1032                 
1033                 var targetWidth = this.minWidth - 2 * x;
1034                 var targetHeight = this.minHeight - 2 * y;
1035                 
1036                 var scale = 1;
1037                 
1038                 if((x == 0 && y == 0) || (x == 0 && y > 0)){
1039                     scale = targetWidth / width;
1040                 }
1041                 
1042                 if(x > 0 && y == 0){
1043                     scale = targetHeight / height;
1044                 }
1045                 
1046                 if(x > 0 && y > 0){
1047                     scale = targetWidth / width;
1048                     
1049                     if(width < height){
1050                         scale = targetHeight / height;
1051                     }
1052                 }
1053                 
1054                 context.scale(scale, scale);
1055                 var sx = Math.min(this.canvasEl.width - this.thumbEl.getWidth(), this.thumbEl.getLeft(true) - this.previewEl.getLeft(true));
1056                 var sy = Math.min(this.canvasEl.height - this.thumbEl.getHeight(), this.thumbEl.getTop(true) - this.previewEl.getTop(true));
1057
1058                 sx = sx < 0 ? 0 : (sx / this.getScaleLevel());
1059                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
1060                 
1061                 sy += (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? 0 : Math.abs(this.imageEl.OriginWidth - this.imageEl.OriginHeight);
1062                 
1063                 context.drawImage(imageCanvas, sx, sy, width, height, x, y, width, height);
1064                 
1065                 break;
1066             default : 
1067                 break;
1068         }
1069         
1070         this.cropData = canvas.toDataURL(this.cropType);
1071         
1072         if(this.fireEvent('crop', this, this.cropData) !== false){
1073             this.process(this.file, this.cropData);
1074         }
1075         
1076         return;
1077         
1078     },
1079     
1080     setThumbBoxSize : function()
1081     {
1082         var width, height;
1083         
1084         if(this.isDocument && typeof(this.imageEl) != 'undefined'){
1085             width = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.max(this.minWidth, this.minHeight) : Math.min(this.minWidth, this.minHeight);
1086             height = (this.imageEl.OriginWidth > this.imageEl.OriginHeight) ? Math.min(this.minWidth, this.minHeight) : Math.max(this.minWidth, this.minHeight);
1087             
1088             this.minWidth = width;
1089             this.minHeight = height;
1090             
1091             if(this.rotate == 90 || this.rotate == 270){
1092                 this.minWidth = height;
1093                 this.minHeight = width;
1094             }
1095         }
1096         
1097         height = 300;
1098         width = Math.ceil(this.minWidth * height / this.minHeight);
1099         
1100         if(this.minWidth > this.minHeight){
1101             width = 300;
1102             height = Math.ceil(this.minHeight * width / this.minWidth);
1103         }
1104         
1105         this.thumbEl.setStyle({
1106             width : width + 'px',
1107             height : height + 'px'
1108         });
1109
1110         return;
1111             
1112     },
1113     
1114     setThumbBoxPosition : function()
1115     {
1116         var x = Math.ceil((this.bodyEl.getWidth() - this.thumbEl.getWidth()) / 2 );
1117         var y = Math.ceil((this.bodyEl.getHeight() - this.thumbEl.getHeight()) / 2);
1118         
1119         this.thumbEl.setLeft(x);
1120         this.thumbEl.setTop(y);
1121         
1122     },
1123     
1124     baseRotateLevel : function()
1125     {
1126         this.baseRotate = 1;
1127         
1128         if(
1129                 typeof(this.exif) != 'undefined' &&
1130                 typeof(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != 'undefined' &&
1131                 [1, 3, 6, 8].indexOf(this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']]) != -1
1132         ){
1133             this.baseRotate = this.exif[Roo.dialog.UploadCropbox['tags']['Orientation']];
1134         }
1135         
1136         this.rotate = Roo.dialog.UploadCropbox['Orientation'][this.baseRotate];
1137         
1138     },
1139     
1140     baseScaleLevel : function()
1141     {
1142         console.log("BASE SCALE LEVEL");
1143         var width, height;
1144         
1145         if(this.isDocument){
1146             
1147             if(this.baseRotate == 6 || this.baseRotate == 8){
1148             
1149                 height = this.thumbEl.getHeight();
1150                 this.baseScale = height / this.imageEl.OriginWidth;
1151
1152                 if(this.imageEl.OriginHeight * this.baseScale > this.thumbEl.getWidth()){
1153                     width = this.thumbEl.getWidth();
1154                     this.baseScale = width / this.imageEl.OriginHeight;
1155                 }
1156
1157                 return;
1158             }
1159
1160             height = this.thumbEl.getHeight();
1161             this.baseScale = height / this.imageEl.OriginHeight;
1162
1163             if(this.imageEl.OriginWidth * this.baseScale > this.thumbEl.getWidth()){
1164                 width = this.thumbEl.getWidth();
1165                 this.baseScale = width / this.imageEl.OriginWidth;
1166             }
1167
1168             return;
1169         }
1170         
1171         if(this.baseRotate == 6 || this.baseRotate == 8){
1172             
1173             width = this.thumbEl.getHeight();
1174             this.baseScale = width / this.imageEl.OriginHeight;
1175             
1176             if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getWidth()){
1177                 height = this.thumbEl.getWidth();
1178                 this.baseScale = height / this.imageEl.OriginHeight;
1179             }
1180             
1181             if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1182                 height = this.thumbEl.getWidth();
1183                 this.baseScale = height / this.imageEl.OriginHeight;
1184                 
1185                 if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getHeight()){
1186                     width = this.thumbEl.getHeight();
1187                     this.baseScale = width / this.imageEl.OriginWidth;
1188                 }
1189             }
1190             
1191             return;
1192         }
1193         
1194         width = this.thumbEl.getWidth();
1195         this.baseScale = width / this.imageEl.OriginWidth;
1196         
1197         if(this.imageEl.OriginHeight * this.baseScale < this.thumbEl.getHeight()){
1198             height = this.thumbEl.getHeight();
1199             this.baseScale = height / this.imageEl.OriginHeight;
1200         }
1201         
1202         if(this.imageEl.OriginWidth > this.imageEl.OriginHeight){
1203             
1204             height = this.thumbEl.getHeight();
1205             this.baseScale = height / this.imageEl.OriginHeight;
1206             
1207             if(this.imageEl.OriginWidth * this.baseScale < this.thumbEl.getWidth()){
1208                 width = this.thumbEl.getWidth();
1209                 this.baseScale = width / this.imageEl.OriginWidth;
1210             }
1211             
1212         }
1213
1214         if(this.imageEl.OriginWidth < this.minWidth || this.imageEl.OriginHeight < this.minHeight) {
1215             this.baseScale = width / this.minWidth;
1216         }
1217         console.log(this.baseScale);
1218         return;
1219     },
1220     
1221     getScaleLevel : function()
1222     {
1223         return this.baseScale * Math.pow(1.02, this.scale);
1224     },
1225     
1226     onTouchStart : function(e)
1227     {
1228         if(!this.canvasLoaded){
1229             this.beforeSelectFile(e);
1230             return;
1231         }
1232         
1233         var touches = e.browserEvent.touches;
1234         
1235         if(!touches){
1236             return;
1237         }
1238         
1239         if(touches.length == 1){
1240             this.onMouseDown(e);
1241             return;
1242         }
1243         
1244         if(touches.length != 2){
1245             return;
1246         }
1247         
1248         var coords = [];
1249         
1250         for(var i = 0, finger; finger = touches[i]; i++){
1251             coords.push(finger.pageX, finger.pageY);
1252         }
1253         
1254         var x = Math.pow(coords[0] - coords[2], 2);
1255         var y = Math.pow(coords[1] - coords[3], 2);
1256         
1257         this.startDistance = Math.sqrt(x + y);
1258         
1259         this.startScale = this.scale;
1260         
1261         this.pinching = true;
1262         this.dragable = false;
1263         
1264     },
1265     
1266     onTouchMove : function(e)
1267     {
1268         if(!this.pinching && !this.dragable){
1269             return;
1270         }
1271         
1272         var touches = e.browserEvent.touches;
1273         
1274         if(!touches){
1275             return;
1276         }
1277         
1278         if(this.dragable){
1279             this.onMouseMove(e);
1280             return;
1281         }
1282         
1283         var coords = [];
1284         
1285         for(var i = 0, finger; finger = touches[i]; i++){
1286             coords.push(finger.pageX, finger.pageY);
1287         }
1288         
1289         var x = Math.pow(coords[0] - coords[2], 2);
1290         var y = Math.pow(coords[1] - coords[3], 2);
1291         
1292         this.endDistance = Math.sqrt(x + y);
1293         
1294         this.scale = this.startScale + Math.floor(Math.log(this.endDistance / this.startDistance) / Math.log(1.1));
1295         
1296         if(!this.zoomable()){
1297             this.scale = this.startScale;
1298             return;
1299         }
1300         
1301         this.draw();
1302         
1303     },
1304     
1305     onTouchEnd : function(e)
1306     {
1307         this.pinching = false;
1308         this.dragable = false;
1309         
1310     },
1311     
1312     process : function(file, crop)
1313     {
1314         if(this.loadMask){
1315             this.maskEl.mask(this.loadingText);
1316         }
1317         
1318         this.xhr = new XMLHttpRequest();
1319         
1320         file.xhr = this.xhr;
1321
1322         this.xhr.open(this.method, this.url, true);
1323         
1324         var headers = {
1325             "Accept": "application/json",
1326             "Cache-Control": "no-cache",
1327             "X-Requested-With": "XMLHttpRequest"
1328         };
1329         
1330         for (var headerName in headers) {
1331             var headerValue = headers[headerName];
1332             if (headerValue) {
1333                 this.xhr.setRequestHeader(headerName, headerValue);
1334             }
1335         }
1336         
1337         var _this = this;
1338         
1339         this.xhr.onload = function()
1340         {
1341             _this.xhrOnLoad(_this.xhr);
1342         }
1343         
1344         this.xhr.onerror = function()
1345         {
1346             _this.xhrOnError(_this.xhr);
1347         }
1348         
1349         var formData = new FormData();
1350
1351         formData.append("onid", "43024");
1352         formData.append("ontable", "pressrelease_boilerplate");
1353
1354         formData.append('returnHTML', 'NO');
1355         
1356         if(crop){
1357             formData.append('crop', crop);
1358             var blobBin = atob(crop.split(',')[1]);
1359             var array = [];
1360             for(var i = 0; i < blobBin.length; i++) {
1361                 array.push(blobBin.charCodeAt(i));
1362             }
1363             var croppedFile =new Blob([new Uint8Array(array)], {type: 'image/png'});
1364             formData.append(this.paramName, croppedFile, file.name);
1365         }
1366         
1367         if(typeof(file.filename) != 'undefined'){
1368             formData.append('filename', file.filename);
1369         }
1370         
1371         if(typeof(file.mimetype) != 'undefined'){
1372             formData.append('mimetype', file.mimetype);
1373         }
1374
1375         if(this.fireEvent('arrange', this, formData) != false){
1376             this.xhr.send(formData);
1377         };
1378     },
1379     
1380     xhrOnLoad : function(xhr)
1381     {
1382         if(this.loadMask){
1383             this.maskEl.unmask();
1384         }
1385         
1386         if (xhr.readyState !== 4) {
1387             this.fireEvent('exception', this, xhr);
1388             return;
1389         }
1390
1391         var response = Roo.decode(xhr.responseText);
1392         
1393         if(!response.success){
1394             this.fireEvent('exception', this, xhr);
1395             return;
1396         }
1397         
1398         var response = Roo.decode(xhr.responseText);
1399         
1400         this.fireEvent('upload', this, response);
1401         
1402     },
1403     
1404     xhrOnError : function()
1405     {
1406         if(this.loadMask){
1407             this.maskEl.unmask();
1408         }
1409         
1410         Roo.log('xhr on error');
1411         
1412         var response = Roo.decode(xhr.responseText);
1413           
1414         Roo.log(response);
1415         
1416     },
1417     
1418     prepare : function(file)
1419     {   
1420         if(this.loadMask){
1421             this.maskEl.mask(this.loadingText);
1422         }
1423         
1424         this.file = false;
1425         this.exif = {};
1426         
1427         if(typeof(file) === 'string'){
1428             this.loadCanvas(file);
1429             return;
1430         }
1431         
1432         if(!file || !this.urlAPI){
1433             return;
1434         }
1435         
1436         this.file = file;
1437         this.cropType = file.type;
1438         
1439         var _this = this;
1440         
1441         if(this.fireEvent('prepare', this, this.file) != false){
1442             
1443             var reader = new FileReader();
1444             
1445             reader.onload = function (e) {
1446                 if (e.target.error) {
1447                     Roo.log(e.target.error);
1448                     return;
1449                 }
1450                 
1451                 var buffer = e.target.result,
1452                     dataView = new DataView(buffer),
1453                     offset = 2,
1454                     maxOffset = dataView.byteLength - 4,
1455                     markerBytes,
1456                     markerLength;
1457                 
1458                 if (dataView.getUint16(0) === 0xffd8) {
1459                     while (offset < maxOffset) {
1460                         markerBytes = dataView.getUint16(offset);
1461                         
1462                         if ((markerBytes >= 0xffe0 && markerBytes <= 0xffef) || markerBytes === 0xfffe) {
1463                             markerLength = dataView.getUint16(offset + 2) + 2;
1464                             if (offset + markerLength > dataView.byteLength) {
1465                                 Roo.log('Invalid meta data: Invalid segment size.');
1466                                 break;
1467                             }
1468                             
1469                             if(markerBytes == 0xffe1){
1470                                 _this.parseExifData(
1471                                     dataView,
1472                                     offset,
1473                                     markerLength
1474                                 );
1475                             }
1476                             
1477                             offset += markerLength;
1478                             
1479                             continue;
1480                         }
1481                         
1482                         break;
1483                     }
1484                     
1485                 }
1486                 
1487                 var url = _this.urlAPI.createObjectURL(_this.file);
1488                 
1489                 _this.loadCanvas(url);
1490                 
1491                 return;
1492             }
1493             
1494             reader.readAsArrayBuffer(this.file);
1495             
1496         }
1497         
1498     },
1499     
1500     parseExifData : function(dataView, offset, length)
1501     {
1502         var tiffOffset = offset + 10,
1503             littleEndian,
1504             dirOffset;
1505     
1506         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1507             // No Exif data, might be XMP data instead
1508             return;
1509         }
1510         
1511         // Check for the ASCII code for "Exif" (0x45786966):
1512         if (dataView.getUint32(offset + 4) !== 0x45786966) {
1513             // No Exif data, might be XMP data instead
1514             return;
1515         }
1516         if (tiffOffset + 8 > dataView.byteLength) {
1517             Roo.log('Invalid Exif data: Invalid segment size.');
1518             return;
1519         }
1520         // Check for the two null bytes:
1521         if (dataView.getUint16(offset + 8) !== 0x0000) {
1522             Roo.log('Invalid Exif data: Missing byte alignment offset.');
1523             return;
1524         }
1525         // Check the byte alignment:
1526         switch (dataView.getUint16(tiffOffset)) {
1527         case 0x4949:
1528             littleEndian = true;
1529             break;
1530         case 0x4D4D:
1531             littleEndian = false;
1532             break;
1533         default:
1534             Roo.log('Invalid Exif data: Invalid byte alignment marker.');
1535             return;
1536         }
1537         // Check for the TIFF tag marker (0x002A):
1538         if (dataView.getUint16(tiffOffset + 2, littleEndian) !== 0x002A) {
1539             Roo.log('Invalid Exif data: Missing TIFF marker.');
1540             return;
1541         }
1542         // Retrieve the directory offset bytes, usually 0x00000008 or 8 decimal:
1543         dirOffset = dataView.getUint32(tiffOffset + 4, littleEndian);
1544         
1545         this.parseExifTags(
1546             dataView,
1547             tiffOffset,
1548             tiffOffset + dirOffset,
1549             littleEndian
1550         );
1551     },
1552     
1553     parseExifTags : function(dataView, tiffOffset, dirOffset, littleEndian)
1554     {
1555         var tagsNumber,
1556             dirEndOffset,
1557             i;
1558         if (dirOffset + 6 > dataView.byteLength) {
1559             Roo.log('Invalid Exif data: Invalid directory offset.');
1560             return;
1561         }
1562         tagsNumber = dataView.getUint16(dirOffset, littleEndian);
1563         dirEndOffset = dirOffset + 2 + 12 * tagsNumber;
1564         if (dirEndOffset + 4 > dataView.byteLength) {
1565             Roo.log('Invalid Exif data: Invalid directory size.');
1566             return;
1567         }
1568         for (i = 0; i < tagsNumber; i += 1) {
1569             this.parseExifTag(
1570                 dataView,
1571                 tiffOffset,
1572                 dirOffset + 2 + 12 * i, // tag offset
1573                 littleEndian
1574             );
1575         }
1576         // Return the offset to the next directory:
1577         return dataView.getUint32(dirEndOffset, littleEndian);
1578     },
1579     
1580     parseExifTag : function (dataView, tiffOffset, offset, littleEndian) 
1581     {
1582         var tag = dataView.getUint16(offset, littleEndian);
1583         
1584         this.exif[tag] = this.getExifValue(
1585             dataView,
1586             tiffOffset,
1587             offset,
1588             dataView.getUint16(offset + 2, littleEndian), // tag type
1589             dataView.getUint32(offset + 4, littleEndian), // tag length
1590             littleEndian
1591         );
1592     },
1593     
1594     getExifValue : function (dataView, tiffOffset, offset, type, length, littleEndian)
1595     {
1596         var tagType = Roo.dialog.UploadCropbox.exifTagTypes[type],
1597             tagSize,
1598             dataOffset,
1599             values,
1600             i,
1601             str,
1602             c;
1603     
1604         if (!tagType) {
1605             Roo.log('Invalid Exif data: Invalid tag type.');
1606             return;
1607         }
1608         
1609         tagSize = tagType.size * length;
1610         // Determine if the value is contained in the dataOffset bytes,
1611         // or if the value at the dataOffset is a pointer to the actual data:
1612         dataOffset = tagSize > 4 ?
1613                 tiffOffset + dataView.getUint32(offset + 8, littleEndian) : (offset + 8);
1614         if (dataOffset + tagSize > dataView.byteLength) {
1615             Roo.log('Invalid Exif data: Invalid data offset.');
1616             return;
1617         }
1618         if (length === 1) {
1619             return tagType.getValue(dataView, dataOffset, littleEndian);
1620         }
1621         values = [];
1622         for (i = 0; i < length; i += 1) {
1623             values[i] = tagType.getValue(dataView, dataOffset + i * tagType.size, littleEndian);
1624         }
1625         
1626         if (tagType.ascii) {
1627             str = '';
1628             // Concatenate the chars:
1629             for (i = 0; i < values.length; i += 1) {
1630                 c = values[i];
1631                 // Ignore the terminating NULL byte(s):
1632                 if (c === '\u0000') {
1633                     break;
1634                 }
1635                 str += c;
1636             }
1637             return str;
1638         }
1639         return values;
1640     }
1641     
1642 });
1643
1644 Roo.apply(Roo.dialog.UploadCropbox, {
1645     tags : {
1646         'Orientation': 0x0112
1647     },
1648     
1649     Orientation: {
1650             1: 0, //'top-left',
1651 //            2: 'top-right',
1652             3: 180, //'bottom-right',
1653 //            4: 'bottom-left',
1654 //            5: 'left-top',
1655             6: 90, //'right-top',
1656 //            7: 'right-bottom',
1657             8: 270 //'left-bottom'
1658     },
1659     
1660     exifTagTypes : {
1661         // byte, 8-bit unsigned int:
1662         1: {
1663             getValue: function (dataView, dataOffset) {
1664                 return dataView.getUint8(dataOffset);
1665             },
1666             size: 1
1667         },
1668         // ascii, 8-bit byte:
1669         2: {
1670             getValue: function (dataView, dataOffset) {
1671                 return String.fromCharCode(dataView.getUint8(dataOffset));
1672             },
1673             size: 1,
1674             ascii: true
1675         },
1676         // short, 16 bit int:
1677         3: {
1678             getValue: function (dataView, dataOffset, littleEndian) {
1679                 return dataView.getUint16(dataOffset, littleEndian);
1680             },
1681             size: 2
1682         },
1683         // long, 32 bit int:
1684         4: {
1685             getValue: function (dataView, dataOffset, littleEndian) {
1686                 return dataView.getUint32(dataOffset, littleEndian);
1687             },
1688             size: 4
1689         },
1690         // rational = two long values, first is numerator, second is denominator:
1691         5: {
1692             getValue: function (dataView, dataOffset, littleEndian) {
1693                 return dataView.getUint32(dataOffset, littleEndian) /
1694                     dataView.getUint32(dataOffset + 4, littleEndian);
1695             },
1696             size: 8
1697         },
1698         // slong, 32 bit signed int:
1699         9: {
1700             getValue: function (dataView, dataOffset, littleEndian) {
1701                 return dataView.getInt32(dataOffset, littleEndian);
1702             },
1703             size: 4
1704         },
1705         // srational, two slongs, first is numerator, second is denominator:
1706         10: {
1707             getValue: function (dataView, dataOffset, littleEndian) {
1708                 return dataView.getInt32(dataOffset, littleEndian) /
1709                     dataView.getInt32(dataOffset + 4, littleEndian);
1710             },
1711             size: 8
1712         }
1713     },
1714     
1715     footer : {
1716         STANDARD : [
1717             {
1718                 tag : 'div',
1719                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1720                 action : 'rotate-left',
1721                 cn : [
1722                     {
1723                         tag : 'button',
1724                         cls : 'btn btn-default',
1725                         html : '<i class="fa fa-undo"></i>'
1726                     }
1727                 ]
1728             },
1729             {
1730                 tag : 'div',
1731                 cls : 'btn-group roo-upload-cropbox-picture',
1732                 action : 'picture',
1733                 cn : [
1734                     {
1735                         tag : 'button',
1736                         cls : 'btn btn-default',
1737                         html : '<i class="fa fa-picture-o"></i>'
1738                     }
1739                 ]
1740             },
1741             {
1742                 tag : 'div',
1743                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1744                 action : 'rotate-right',
1745                 cn : [
1746                     {
1747                         tag : 'button',
1748                         cls : 'btn btn-default',
1749                         html : '<i class="fa fa-repeat"></i>'
1750                     }
1751                 ]
1752             }
1753         ],
1754         DOCUMENT : [
1755             {
1756                 tag : 'div',
1757                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1758                 action : 'rotate-left',
1759                 cn : [
1760                     {
1761                         tag : 'button',
1762                         cls : 'btn btn-default',
1763                         html : '<i class="fa fa-undo"></i>'
1764                     }
1765                 ]
1766             },
1767             {
1768                 tag : 'div',
1769                 cls : 'btn-group roo-upload-cropbox-download',
1770                 action : 'download',
1771                 cn : [
1772                     {
1773                         tag : 'button',
1774                         cls : 'btn btn-default',
1775                         html : '<i class="fa fa-download"></i>'
1776                     }
1777                 ]
1778             },
1779             {
1780                 tag : 'div',
1781                 cls : 'btn-group roo-upload-cropbox-crop',
1782                 action : 'crop',
1783                 cn : [
1784                     {
1785                         tag : 'button',
1786                         cls : 'btn btn-default',
1787                         html : '<i class="fa fa-crop"></i>'
1788                     }
1789                 ]
1790             },
1791             {
1792                 tag : 'div',
1793                 cls : 'btn-group roo-upload-cropbox-trash',
1794                 action : 'trash',
1795                 cn : [
1796                     {
1797                         tag : 'button',
1798                         cls : 'btn btn-default',
1799                         html : '<i class="fa fa-trash"></i>'
1800                     }
1801                 ]
1802             },
1803             {
1804                 tag : 'div',
1805                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1806                 action : 'rotate-right',
1807                 cn : [
1808                     {
1809                         tag : 'button',
1810                         cls : 'btn btn-default',
1811                         html : '<i class="fa fa-repeat"></i>'
1812                     }
1813                 ]
1814             }
1815         ],
1816         ROTATOR : [
1817             {
1818                 tag : 'div',
1819                 cls : 'btn-group roo-upload-cropbox-rotate-left',
1820                 action : 'rotate-left',
1821                 cn : [
1822                     {
1823                         tag : 'button',
1824                         cls : 'btn btn-default',
1825                         html : '<i class="fa fa-undo"></i>'
1826                     }
1827                 ]
1828             },
1829             {
1830                 tag : 'div',
1831                 cls : 'btn-group roo-upload-cropbox-rotate-right',
1832                 action : 'rotate-right',
1833                 cn : [
1834                     {
1835                         tag : 'button',
1836                         cls : 'btn btn-default',
1837                         html : '<i class="fa fa-repeat"></i>'
1838                     }
1839                 ]
1840             }
1841         ]
1842     }
1843 });