dd6a0f8085096e514d74e6fce8db9406183ae256
[moodle.git] / repository / filepicker.js
1 // YUI3 File Picker module for moodle
2 // Author: Dongsheng Cai <dongsheng@moodle.com>
4 /**
5  *
6  * File Picker UI
7  * =====
8  * this.fpnode, contains reference to filepicker Node, non-empty if and only if rendered
9  * this.api, stores the URL to make ajax request
10  * this.mainui, YUI Panel
11  * this.selectnode, contains reference to select-file Node
12  * this.selectui, YUI Panel for selecting particular file
13  * this.msg_dlg, YUI Panel for error or info message
14  * this.process_dlg, YUI Panel for processing existing filename
15  * this.treeview, YUI Treeview
16  * this.viewmode, store current view mode
17  * this.pathbar, reference to the Node with path bar
18  * this.pathnode, a Node element representing one folder in a path bar (not attached anywhere, just used for template)
19  * this.currentpath, the current path in the repository (or last requested path)
20  *
21  * Filepicker options:
22  * =====
23  * this.options.client_id, the instance id
24  * this.options.contextid
25  * this.options.itemid
26  * this.options.repositories, stores all repositories displaied in file picker
27  * this.options.formcallback
28  *
29  * Active repository options
30  * =====
31  * this.active_repo.id
32  * this.active_repo.nosearch
33  * this.active_repo.norefresh
34  * this.active_repo.nologin
35  * this.active_repo.help
36  * this.active_repo.manage
37  *
38  * Server responses
39  * =====
40  * this.filelist, cached filelist
41  * this.pages
42  * this.page
43  * this.filepath, current path (each element of the array is a part of the breadcrumb)
44  * this.logindata, cached login form
45  */
47 YUI.add('moodle-core_filepicker', function(Y) {
48     /** help function to extract width/height style as a number, not as a string */
49     Y.Node.prototype.getStylePx = function(attr) {
50         var style = this.getStyle(attr);
51         if (''+style == '0' || ''+style == '0px') {
52             return 0;
53         }
54         var matches = style.match(/^([\d\.]+)px$/)
55         if (matches && parseFloat(matches[1])) {
56             return parseFloat(matches[1]);
57         }
58         return null;
59     }
61     /** if condition is met, the class is added to the node, otherwise - removed */
62     Y.Node.prototype.addClassIf = function(className, condition) {
63         if (condition) {
64             this.addClass(className);
65         } else {
66             this.removeClass(className);
67         }
68         return this;
69     }
71     /** sets the width(height) of the node considering existing minWidth(minHeight) */
72     Y.Node.prototype.setStyleAdv = function(stylename, value) {
73         var stylenameCap = stylename.substr(0,1).toUpperCase() + stylename.substr(1, stylename.length-1).toLowerCase();
74         this.setStyle(stylename, '' + Math.max(value, this.getStylePx('min'+stylenameCap)) + 'px')
75         return this;
76     }
78     /** set image source to src, if there is preview, remember it in lazyloading.
79      *  If there is a preview and it was already loaded, use it. */
80     Y.Node.prototype.setImgSrc = function(src, realsrc, lazyloading) {
81         if (realsrc) {
82             if (M.core_filepicker.loadedpreviews[realsrc]) {
83                 this.set('src', realsrc).addClass('realpreview');
84                 return this;
85             } else {
86                 if (!this.get('id')) {
87                     this.generateID();
88                 }
89                 lazyloading[this.get('id')] = realsrc;
90             }
91         }
92         this.set('src', src);
93         return this;
94     }
96     /**
97      * Replaces the image source with preview. If the image is inside the treeview, we need
98      * also to update the html property of corresponding YAHOO.widget.HTMLNode
99      * @param array lazyloading array containing associations of imgnodeid->realsrc
100      */
101     Y.Node.prototype.setImgRealSrc = function(lazyloading) {
102         if (this.get('id') && lazyloading[this.get('id')]) {
103             var newsrc = lazyloading[this.get('id')];
104             M.core_filepicker.loadedpreviews[newsrc] = true;
105             this.set('src', newsrc).addClass('realpreview');
106             delete lazyloading[this.get('id')];
107             var treenode = this.ancestor('.fp-treeview')
108             if (treenode && treenode.get('parentNode').treeview) {
109                 treenode.get('parentNode').treeview.getRoot().refreshPreviews(this.get('id'), newsrc);
110             }
111         }
112         return this;
113     }
115     /** scan TreeView to find which node contains image with id=imgid and replace it's html
116      * with the new image source. */
117     YAHOO.widget.Node.prototype.refreshPreviews = function(imgid, newsrc, regex) {
118         if (!regex) {
119             regex = new RegExp("<img\\s[^>]*id=\""+imgid+"\"[^>]*?(/?)>", "im");
120         }
121         if (this.expanded || this.isLeaf) {
122             var html = this.getContentHtml();
123             if (html && this.setHtml && regex.test(html)) {
124                 var newhtml = this.html.replace(regex, "<img id=\""+imgid+"\" src=\""+newsrc+"\" class=\"realpreview\"$1>", html);
125                 this.setHtml(newhtml);
126                 return true;
127             }
128             if (!this.isLeaf && this.children) {
129                 for(var c in this.children) {
130                     if (this.children[c].refreshPreviews(imgid, newsrc, regex)) {
131                         return true;
132                     }
133                 }
134             }
135         }
136         return false;
137     }
139     /**
140      * Displays a list of files (used by filepicker, filemanager) inside the Node
141      *
142      * @param array options
143      *   viewmode : 1 - icons, 2 - tree, 3 - table
144      *   appendonly : whether fileslist need to be appended instead of replacing the existing content
145      *   filenode : Node element that contains template for displaying one file
146      *   callback : On click callback. The element of the fileslist array will be passed as argument
147      *   rightclickcallback : On right click callback (optional).
148      *   callbackcontext : context where callbacks are executed
149      *   sortable : whether content may be sortable (in table mode)
150      *   dynload : allow dynamic load for tree view
151      *   filepath : for pre-building of tree view - the path to the current directory in filepicker format
152      *   treeview_dynload : callback to function to dynamically load the folder in tree view
153      *   classnamecallback : callback to function that returns the class name for an element
154      * @param array fileslist array of files to show, each array element may have attributes:
155      *   title or fullname : file name
156      *   shorttitle (optional) : display file name
157      *   thumbnail : url of image
158      *   icon : url of icon image
159      *   thumbnail_width : width of thumbnail, default 90
160      *   thumbnail_height : height of thumbnail, default 90
161      *   thumbnail_alt : TODO not needed!
162      *   description or thumbnail_title : alt text
163      * @param array lazyloading : reference to the array with lazy loading images
164      */
165     Y.Node.prototype.fp_display_filelist = function(options, fileslist, lazyloading) {
166         var viewmodeclassnames = {1:'fp-iconview', 2:'fp-treeview', 3:'fp-tableview'};
167         var classname = viewmodeclassnames[options.viewmode];
168         var scope = this;
169         /** return whether file is a folder (different attributes in FileManager and FilePicker) */
170         var file_is_folder = function(node) {
171             if (node.children) {return true;}
172             if (node.type && node.type == 'folder') {return true;}
173             return false;
174         };
175         /** return the name of the file (different attributes in FileManager and FilePicker) */
176         var file_get_filename = function(node) {
177             return node.title ? node.title : node.fullname;
178         }
179         /** return display name of the file (different attributes in FileManager and FilePicker) */
180         var file_get_displayname = function(node) {
181             return node.shorttitle ? node.shorttitle : file_get_filename(node);
182         }
183         /** return file description (different attributes in FileManager and FilePicker) */
184         var file_get_description = function(node) {
185             return node.description ? node.description : (node.thumbnail_title ? node.thumbnail_title : file_get_filename(node));
186         }
187         /** help funciton for tree view */
188         var build_tree = function(node, level) {
189             // prepare file name with icon
190             var el = Y.Node.create('<div/>');
191             el.appendChild(options.filenode.cloneNode(true));
193             el.one('.fp-filename').setContent(file_get_displayname(node));
194             // TODO add tooltip with node.title or node.thumbnail_title
195             var tmpnodedata = {className:options.classnamecallback(node)};
196             el.get('children').addClass(tmpnodedata.className);
197             if (node.icon) {
198                 el.one('.fp-icon').appendChild(Y.Node.create('<img/>'));
199                 el.one('.fp-icon img').setImgSrc(node.icon, node.realicon, lazyloading);
200             }
201             // create node
202             tmpnodedata.html = el.getContent();
203             var tmpNode = new YAHOO.widget.HTMLNode(tmpnodedata, level, false);
204             if (node.dynamicLoadComplete) {
205                 tmpNode.dynamicLoadComplete = true;
206             }
207             tmpNode.fileinfo = node;
208             tmpNode.isLeaf = !file_is_folder(node);
209             if (!tmpNode.isLeaf) {
210                 if(node.expanded) {
211                     tmpNode.expand();
212                 }
213                 tmpNode.path = node.path ? node.path : (node.filepath ? node.filepath : '');
214                 for(var c in node.children) {
215                     build_tree(node.children[c], tmpNode);
216                 }
217             }
218         };
219         /** initialize tree view */
220         var initialize_tree_view = function() {
221             var parentid = scope.one('.'+classname).get('id');
222             // TODO MDL-32736 use YUI3 gallery TreeView
223             scope.treeview = new YAHOO.widget.TreeView(parentid);
224             if (options.dynload) {
225                 scope.treeview.setDynamicLoad(Y.bind(options.treeview_dynload, options.callbackcontext), 1);
226             }
227             scope.treeview.singleNodeHighlight = true;
228             if (options.filepath && options.filepath.length) {
229                 // we just jumped from icon/details view, we need to show all parents
230                 // we extract as much information as possible from filepath and filelist
231                 // and send additional requests to retrieve siblings for parent folders
232                 var mytree = {};
233                 var mytreeel = null;
234                 for (var i in options.filepath) {
235                     if (mytreeel == null) {
236                         mytreeel = mytree;
237                     } else {
238                         mytreeel.children = [{}];
239                         mytreeel = mytreeel.children[0];
240                     }
241                     var pathelement = options.filepath[i];
242                     mytreeel.path = pathelement.path;
243                     mytreeel.title = pathelement.name;
244                     mytreeel.icon = pathelement.icon;
245                     mytreeel.dynamicLoadComplete = true; // we will call it manually
246                     mytreeel.expanded = true;
247                 }
248                 mytreeel.children = fileslist;
249                 build_tree(mytree, scope.treeview.getRoot());
250                 // manually call dynload for parent elements in the tree so we can load other siblings
251                 if (options.dynload) {
252                     var root = scope.treeview.getRoot();
253                     while (root && root.children && root.children.length) {
254                         root = root.children[0];
255                         if (root.path == mytreeel.path) {
256                             root.origpath = options.filepath;
257                             root.origlist = fileslist;
258                         } else if (!root.isLeaf && root.expanded) {
259                             Y.bind(options.treeview_dynload, options.callbackcontext)(root, null);
260                         }
261                     }
262                 }
263             } else {
264                 // there is no path information, just display all elements as a list, without hierarchy
265                 for(k in fileslist) {
266                     build_tree(fileslist[k], scope.treeview.getRoot());
267                 }
268             }
269             scope.treeview.subscribe('clickEvent', function(e){
270                 e.node.highlight(false);
271                 var callback = options.callback;
272                 if (options.rightclickcallback && e.event.target &&
273                         Y.Node(e.event.target).ancestor('.fp-treeview .fp-contextmenu', true)) {
274                     callback = options.rightclickcallback;
275                 }
276                 Y.bind(callback, options.callbackcontext)(e, e.node.fileinfo);
277                 YAHOO.util.Event.stopEvent(e.event)
278             });
279             // TODO MDL-32736 support right click
280             /*if (options.rightclickcallback) {
281                 scope.treeview.subscribe('dblClickEvent', function(e){
282                     e.node.highlight(false);
283                     Y.bind(options.rightclickcallback, options.callbackcontext)(e, e.node.fileinfo);
284                 });
285             }*/
286             scope.treeview.draw();
287         };
288         /** formatting function for table view */
289         var formatValue = function (o){
290             if (o.data[''+o.column.key+'_f_s']) {return o.data[''+o.column.key+'_f_s'];}
291             else if (o.data[''+o.column.key+'_f']) {return o.data[''+o.column.key+'_f'];}
292             else if (o.value) {return o.value;}
293             else {return '';}
294         };
295         /** formatting function for table view */
296         var formatTitle = function(o) {
297             var el = Y.Node.create('<div/>');
298             el.appendChild(options.filenode.cloneNode(true)); // TODO not node but string!
299             el.get('children').addClass(o.data['classname']);
300             el.one('.fp-filename').setContent(o.value);
301             if (o.data['icon']) {
302                 el.one('.fp-icon').appendChild(Y.Node.create('<img/>'));
303                 el.one('.fp-icon img').setImgSrc(o.data['icon'], o.data['realicon'], lazyloading);
304             }
305             if (options.rightclickcallback) {
306                 el.get('children').addClass('fp-hascontextmenu');
307             }
308             // TODO add tooltip with o.data['title'] (o.value) or o.data['thumbnail_title']
309             return el.getContent();
310         }
311         /** sorting function for table view */
312         var sortFoldersFirst = function(a, b, desc) {
313             if (a.get('isfolder') && !b.get('isfolder')) {
314                 return -1;
315             }
316             if (!a.get('isfolder') && b.get('isfolder')) {
317                 return 1;
318             }
319             var aa = a.get(this.key), bb = b.get(this.key), dir = desc ? -1 : 1;
320             return (aa > bb) ? dir : ((aa < bb) ? -dir : 0);
321         }
322         /** initialize table view */
323         var initialize_table_view = function() {
324             var cols = [
325                 {key: "displayname", label: M.str.moodle.name, allowHTML: true, formatter: formatTitle,
326                     sortable: true, sortFn: sortFoldersFirst},
327                 {key: "datemodified", label: M.str.moodle.lastmodified, allowHTML: true, formatter: formatValue,
328                     sortable: true, sortFn: sortFoldersFirst},
329                 {key: "size", label: M.str.repository.size, allowHTML: true, formatter: formatValue,
330                     sortable: true, sortFn: sortFoldersFirst},
331                 {key: "mimetype", label: M.str.repository.type, allowHTML: true,
332                     sortable: true, sortFn: sortFoldersFirst}
333             ];
334             for (var k in fileslist) {
335                 // to speed up sorting and formatting
336                 fileslist[k].displayname = file_get_displayname(fileslist[k]);
337                 fileslist[k].isfolder = file_is_folder(fileslist[k]);
338                 fileslist[k].classname = options.classnamecallback(fileslist[k]);
339             }
340             scope.tableview = new Y.DataTable({columns: cols, data: fileslist});
341             scope.tableview.delegate('click', function (e, tableview) {
342                 var record = tableview.getRecord(e.currentTarget.get('id'));
343                 if (record) {
344                     var callback = options.callback;
345                     if (options.rightclickcallback && e.target.ancestor('.fp-tableview .fp-contextmenu', true)) {
346                         callback = options.rightclickcallback;
347                     }
348                     Y.bind(callback, this)(e, record.getAttrs());
349                 }
350             }, 'tr', options.callbackcontext, scope.tableview);
351             if (options.rightclickcallback) {
352                 scope.tableview.delegate('contextmenu', function (e, tableview) {
353                     var record = tableview.getRecord(e.currentTarget.get('id'));
354                     if (record) { Y.bind(options.rightclickcallback, this)(e, record.getAttrs()); }
355                 }, 'tr', options.callbackcontext, scope.tableview);
356             }
357         }
358         /** append items in table view mode */
359         var append_files_table = function() {
360             var parentnode = scope.one('.'+classname);
361             scope.tableview.render(parentnode);
362             scope.tableview.sortable = options.sortable ? true : false;
363         };
364         /** append items in tree view mode */
365         var append_files_tree = function() {
366             if (options.appendonly) {
367                 var parentnode = scope.treeview.getRoot();
368                 if (scope.treeview.getHighlightedNode()) {
369                     parentnode = scope.treeview.getHighlightedNode();
370                     if (parentnode.isLeaf) {parentnode = parentnode.parent;}
371                 }
372                 for (var k in fileslist) {
373                     build_tree(fileslist[k], parentnode);
374                 }
375                 scope.treeview.draw();
376             } else {
377                 // otherwise files were already added in initialize_tree_view()
378             }
379         }
380         /** append items in icon view mode */
381         var append_files_icons = function() {
382             parent = scope.one('.'+classname);
383             for (var k in fileslist) {
384                 var node = fileslist[k];
385                 var element = options.filenode.cloneNode(true);
386                 parent.appendChild(element);
387                 element.addClass(options.classnamecallback(node));
388                 var filenamediv = element.one('.fp-filename');
389                 filenamediv.setContent(file_get_displayname(node));
390                 var imgdiv = element.one('.fp-thumbnail'), width, height, src;
391                 if (node.thumbnail) {
392                     width = node.thumbnail_width ? node.thumbnail_width : 90;
393                     height = node.thumbnail_height ? node.thumbnail_height : 90;
394                     src = node.thumbnail;
395                 } else {
396                     width = 16;
397                     height = 16;
398                     src = node.icon;
399                 }
400                 filenamediv.setStyleAdv('width', width);
401                 imgdiv.setStyleAdv('width', width).setStyleAdv('height', height);
402                 var img = Y.Node.create('<img/>').setAttrs({
403                         title: file_get_description(node),
404                         alt: node.thumbnail_alt ? node.thumbnail_alt : file_get_filename(node)}).
405                     setStyle('maxWidth', ''+width+'px').
406                     setStyle('maxHeight', ''+height+'px');
407                 img.setImgSrc(src, node.realthumbnail, lazyloading);
408                 imgdiv.appendChild(img);
409                 element.on('click', function(e, nd) {
410                     if (options.rightclickcallback && e.target.ancestor('.fp-iconview .fp-contextmenu', true)) {
411                         Y.bind(options.rightclickcallback, this)(e, nd);
412                     } else {
413                         Y.bind(options.callback, this)(e, nd);
414                     }
415                 }, options.callbackcontext, node);
416                 if (options.rightclickcallback) {
417                     element.on('contextmenu', options.rightclickcallback, options.callbackcontext, node);
418                 }
419             }
420         }
422         // initialize files view
423         if (!options.appendonly) {
424             var parent = Y.Node.create('<div/>').addClass(classname);
425             this.setContent('').appendChild(parent);
426             parent.generateID();
427             if (options.viewmode == 2) {
428                 initialize_tree_view();
429             } else if (options.viewmode == 3) {
430                 initialize_table_view();
431             } else {
432                 // nothing to initialize for icon view
433             }
434         }
436         // append files to the list
437         if (options.viewmode == 2) {
438             append_files_tree();
439         } else if (options.viewmode == 3) {
440             append_files_table();
441         } else {
442             append_files_icons();
443         }
445     }
447     /**
448      * creates a node and adds it to the div with id #filesskin. This is needed for CSS to be able
449      * to overwrite YUI skin styles (instead of using !important that does not work in IE)
450      */
451     Y.Node.createWithFilesSkin = function(node) {
452         if (!Y.one('#filesskin')) {
453             Y.one(document.body).appendChild(Y.Node.create('<div/>').set('id', 'filesskin'));
454         }
455         return Y.one('#filesskin').appendChild(Y.Node.create(node));
456     }
457 }, '@VERSION@', {
458     requires:['base', 'node', 'yui2-treeview', 'panel', 'cookie', 'datatable', 'datatable-sort']
459 });
461 M.core_filepicker = M.core_filepicker || {};
463 /**
464  * instances of file pickers used on page
465  */
466 M.core_filepicker.instances = M.core_filepicker.instances || {};
467 M.core_filepicker.active_filepicker = null;
469 /**
470  * HTML Templates to use in FilePicker
471  */
472 M.core_filepicker.templates = M.core_filepicker.templates || {};
474 /**
475  * Array of image sources for real previews (realicon or realthumbnail) that are already loaded
476  */
477 M.core_filepicker.loadedpreviews = M.core_filepicker.loadedpreviews || {};
479 /**
480 * Set selected file info
482 * @parma object file info
483 */
484 M.core_filepicker.select_file = function(file) {
485     M.core_filepicker.active_filepicker.select_file(file);
488 /**
489  * Init and show file picker
490  */
491 M.core_filepicker.show = function(Y, options) {
492     if (!M.core_filepicker.instances[options.client_id]) {
493         M.core_filepicker.init(Y, options);
494     }
495     M.core_filepicker.instances[options.client_id].show();
496 };
498 M.core_filepicker.set_templates = function(Y, templates) {
499     for (var templid in templates) {
500         M.core_filepicker.templates[templid] = templates[templid];
501     }
504 /**
505  * Add new file picker to current instances
506  */
507 M.core_filepicker.init = function(Y, options) {
508     var FilePickerHelper = function(options) {
509         FilePickerHelper.superclass.constructor.apply(this, arguments);
510     };
512     FilePickerHelper.NAME = "FilePickerHelper";
513     FilePickerHelper.ATTRS = {
514         options: {},
515         lang: {}
516     };
518     Y.extend(FilePickerHelper, Y.Base, {
519         api: M.cfg.wwwroot+'/repository/repository_ajax.php',
520         cached_responses: {},
521         waitinterval : null, // When the loading template is being displayed and its animation is running this will be an interval instance.
522         initializer: function(options) {
523             this.options = options;
524             if (!this.options.savepath) {
525                 this.options.savepath = '/';
526             }
527         },
529         destructor: function() {
530         },
532         request: function(args, redraw) {
533             var api = (args.api ? args.api : this.api) + '?action='+args.action;
534             var params = {};
535             var scope = args['scope'] ? args['scope'] : this;
536             params['repo_id']=args.repository_id;
537             params['p'] = args.path?args.path:'';
538             params['page'] = args.page?args.page:'';
539             params['env']=this.options.env;
540             // the form element only accept certain file types
541             params['accepted_types']=this.options.accepted_types;
542             params['sesskey'] = M.cfg.sesskey;
543             params['client_id'] = args.client_id;
544             params['itemid'] = this.options.itemid?this.options.itemid:0;
545             params['maxbytes'] = this.options.maxbytes?this.options.maxbytes:-1;
546             if (this.options.context && this.options.context.id) {
547                 params['ctx_id'] = this.options.context.id;
548             }
549             if (args['params']) {
550                 for (i in args['params']) {
551                     params[i] = args['params'][i];
552                 }
553             }
554             if (args.action == 'upload') {
555                 var list = [];
556                 for(var k in params) {
557                     var value = params[k];
558                     if(value instanceof Array) {
559                         for(var i in value) {
560                             list.push(k+'[]='+value[i]);
561                         }
562                     } else {
563                         list.push(k+'='+value);
564                     }
565                 }
566                 params = list.join('&');
567             } else {
568                 params = build_querystring(params);
569             }
570             var cfg = {
571                 method: 'POST',
572                 on: {
573                     complete: function(id,o,p) {
574                         if (!o) {
575                             // TODO
576                             alert('IO FATAL');
577                             return;
578                         }
579                         var data = null;
580                         try {
581                             data = Y.JSON.parse(o.responseText);
582                         } catch(e) {
583                             scope.print_msg(M.str.repository.invalidjson, 'error');
584                             scope.display_error(M.str.repository.invalidjson+'<pre>'+stripHTML(o.responseText)+'</pre>', 'invalidjson')
585                             return;
586                         }
587                         // error checking
588                         if (data && data.error) {
589                             scope.print_msg(data.error, 'error');
590                             if (args.onerror) {
591                                 args.onerror(id,data,p);
592                             } else {
593                                 this.fpnode.one('.fp-content').setContent('');
594                             }
595                             return;
596                         } else {
597                             if (data.msg) {
598                                 scope.print_msg(data.msg, 'info');
599                             }
600                             // cache result if applicable
601                             if (args.action != 'upload' && data.allowcaching) {
602                                 scope.cached_responses[params] = data;
603                             }
604                             // invoke callback
605                             args.callback(id,data,p);
606                         }
607                     }
608                 },
609                 arguments: {
610                     scope: scope
611                 },
612                 headers: {
613                     'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'
614                 },
615                 data: params,
616                 context: this
617             };
618             if (args.form) {
619                 cfg.form = args.form;
620             }
621             // check if result of the same request has been already cached. If not, request it
622             // (never applicable in case of form submission and/or upload action):
623             if (!args.form && args.action != 'upload' && scope.cached_responses[params]) {
624                 args.callback(null, scope.cached_responses[params], {scope: scope})
625             } else {
626                 Y.io(api, cfg);
627                 if (redraw) {
628                     this.wait();
629                 }
630             }
631         },
632         /** displays the dialog and processes rename/overwrite if there is a file with the same name in the same filearea*/
633         process_existing_file: function(data) {
634             var scope = this;
635             var handleOverwrite = function(e) {
636                 // overwrite
637                 e.preventDefault();
638                 var data = this.process_dlg.dialogdata;
639                 var params = {}
640                 params['existingfilename'] = data.existingfile.filename;
641                 params['existingfilepath'] = data.existingfile.filepath;
642                 params['newfilename'] = data.newfile.filename;
643                 params['newfilepath'] = data.newfile.filepath;
644                 this.hide_header();
645                 this.request({
646                     'params': params,
647                     'scope': this,
648                     'action':'overwrite',
649                     'path': '',
650                     'client_id': this.options.client_id,
651                     'repository_id': this.active_repo.id,
652                     'callback': function(id, o, args) {
653                         scope.hide();
654                         // editor needs to update url
655                         // filemanager do nothing
656                         if (scope.options.editor_target && scope.options.env == 'editor') {
657                             scope.options.editor_target.value = data.existingfile.url;
658                             scope.options.editor_target.onchange();
659                         } else if (scope.options.env === 'filepicker') {
660                             var fileinfo = {'client_id':scope.options.client_id,
661                                     'url':data.existingfile.url,
662                                     'file':data.existingfile.filename};
663                             var formcallback_scope = scope.options.magicscope ? scope.options.magicscope : scope;
664                             scope.options.formcallback.apply(formcallback_scope, [fileinfo]);
665                         }
666                     }
667                 }, true);
668             }
669             var handleRename = function(e) {
670                 // inserts file with the new name
671                 e.preventDefault();
672                 var scope = this;
673                 var data = this.process_dlg.dialogdata;
674                 if (scope.options.editor_target && scope.options.env == 'editor') {
675                     scope.options.editor_target.value = data.newfile.url;
676                     scope.options.editor_target.onchange();
677                 }
678                 scope.hide();
679                 var formcallback_scope = scope.options.magicscope ? scope.options.magicscope : scope;
680                 var fileinfo = {'client_id':scope.options.client_id,
681                                 'url':data.newfile.url,
682                                 'file':data.newfile.filename};
683                 scope.options.formcallback.apply(formcallback_scope, [fileinfo]);
684             }
685             var handleCancel = function(e) {
686                 // Delete tmp file
687                 e.preventDefault();
688                 var params = {};
689                 params['newfilename'] = this.process_dlg.dialogdata.newfile.filename;
690                 params['newfilepath'] = this.process_dlg.dialogdata.newfile.filepath;
691                 this.request({
692                     'params': params,
693                     'scope': this,
694                     'action':'deletetmpfile',
695                     'path': '',
696                     'client_id': this.options.client_id,
697                     'repository_id': this.active_repo.id,
698                     'callback': function(id, o, args) {
699                         // let it be in background, from user point of view nothing is happenning
700                     }
701                 }, false);
702                 this.process_dlg.hide();
703                 this.selectui.hide();
704             }
705             if (!this.process_dlg) {
706                 this.process_dlg_node = Y.Node.createWithFilesSkin(M.core_filepicker.templates.processexistingfile);
707                 var node = this.process_dlg_node;
708                 node.generateID();
709                 this.process_dlg = new Y.Panel({
710                     srcNode      : node,
711                     headerContent: M.str.repository.fileexistsdialogheader,
712                     zIndex       : 800000,
713                     centered     : true,
714                     modal        : true,
715                     visible      : false,
716                     render       : true,
717                     buttons      : {}
718                 });
719                 this.process_dlg.plug(Y.Plugin.Drag,{handles:['#'+node.get('id')+' .yui3-widget-hd']});
720                 node.one('.fp-dlg-butoverwrite').on('click', handleOverwrite, this);
721                 node.one('.fp-dlg-butrename').on('click', handleRename, this);
722                 node.one('.fp-dlg-butcancel').on('click', handleCancel, this);
723                 if (this.options.env == 'editor') {
724                     node.one('.fp-dlg-text').setContent(M.str.repository.fileexistsdialog_editor);
725                 } else {
726                     node.one('.fp-dlg-text').setContent(M.str.repository.fileexistsdialog_filemanager);
727                 }
728             }
729             this.selectnode.removeClass('loading');
730             this.process_dlg.dialogdata = data;
731             this.process_dlg_node.one('.fp-dlg-butrename').setContent(M.util.get_string('renameto', 'repository', data.newfile.filename));
732             this.process_dlg.show();
733         },
734         /** displays error instead of filepicker contents */
735         display_error: function(errortext, errorcode) {
736             this.fpnode.one('.fp-content').setContent(M.core_filepicker.templates.error);
737             this.fpnode.one('.fp-content .fp-error').
738                 addClass(errorcode).
739                 setContent(errortext);
740         },
741         /** displays message in a popup */
742         print_msg: function(msg, type) {
743             var header = M.str.moodle.error;
744             if (type != 'error') {
745                 type = 'info'; // one of only two types excepted
746                 header = M.str.moodle.info;
747             }
748             if (!this.msg_dlg) {
749                 this.msg_dlg_node = Y.Node.createWithFilesSkin(M.core_filepicker.templates.message);
750                 this.msg_dlg_node.generateID();
752                 this.msg_dlg = new Y.Panel({
753                     srcNode      : this.msg_dlg_node,
754                     zIndex       : 800000,
755                     centered     : true,
756                     modal        : true,
757                     visible      : false,
758                     render       : true
759                 });
760                 this.msg_dlg.plug(Y.Plugin.Drag,{handles:['#'+this.msg_dlg_node.get('id')+' .yui3-widget-hd']});
761                 this.msg_dlg_node.one('.fp-msg-butok').on('click', function(e) {
762                     e.preventDefault();
763                     this.msg_dlg.hide();
764                 }, this);
765             }
767             this.msg_dlg.set('headerContent', header);
768             this.msg_dlg_node.removeClass('fp-msg-info').removeClass('fp-msg-error').addClass('fp-msg-'+type)
769             this.msg_dlg_node.one('.fp-msg-text').setContent(msg);
770             this.msg_dlg.show();
771         },
772         view_files: function(appenditems) {
773             this.viewbar_set_enabled(true);
774             this.print_path();
775             /*if ((appenditems == null) && (!this.filelist || !this.filelist.length) && !this.active_repo.hasmorepages) {
776              // TODO do it via classes and adjust for each view mode!
777                 // If there are no items and no next page, just display status message and quit
778                 this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
779                 return;
780             }*/
781             if (this.viewmode == 2) {
782                 this.view_as_list(appenditems);
783             } else if (this.viewmode == 3) {
784                 this.view_as_table(appenditems);
785             } else {
786                 this.view_as_icons(appenditems);
787             }
788             // display/hide the link for requesting next page
789             if (!appenditems && this.active_repo.hasmorepages) {
790                 if (!this.fpnode.one('.fp-content .fp-nextpage')) {
791                     this.fpnode.one('.fp-content').append(M.core_filepicker.templates.nextpage);
792                 }
793                 this.fpnode.one('.fp-content .fp-nextpage').one('a,button').on('click', function(e) {
794                     e.preventDefault();
795                     this.fpnode.one('.fp-content .fp-nextpage').addClass('loading');
796                     this.request_next_page();
797                 }, this);
798             }
799             if (!this.active_repo.hasmorepages && this.fpnode.one('.fp-content .fp-nextpage')) {
800                 this.fpnode.one('.fp-content .fp-nextpage').remove();
801             }
802             if (this.fpnode.one('.fp-content .fp-nextpage')) {
803                 this.fpnode.one('.fp-content .fp-nextpage').removeClass('loading');
804             }
805             this.content_scrolled();
806         },
807         content_scrolled: function(e) {
808             setTimeout(Y.bind(function() {
809                 if (this.processingimages) {
810                     return;
811                 }
812                 this.processingimages = true;
813                 var scope = this,
814                     fpcontent = this.fpnode.one('.fp-content'),
815                     fpcontenty = fpcontent.getY(),
816                     fpcontentheight = fpcontent.getStylePx('height'),
817                     nextpage = fpcontent.one('.fp-nextpage'),
818                     is_node_visible = function(node) {
819                         var offset = node.getY()-fpcontenty;
820                         if (offset <= fpcontentheight && (offset >=0 || offset+node.getStylePx('height')>=0)) {
821                             return true;
822                         }
823                         return false;
824                     };
825                 // automatically load next page when 'more' link becomes visible
826                 if (nextpage && !nextpage.hasClass('loading') && is_node_visible(nextpage)) {
827                     nextpage.one('a,button').simulate('click');
828                 }
829                 // replace src for visible images that need to be lazy-loaded
830                 if (scope.lazyloading) {
831                     fpcontent.all('img').each( function(node) {
832                         if (node.get('id') && scope.lazyloading[node.get('id')] && is_node_visible(node)) {
833                             node.setImgRealSrc(scope.lazyloading);
834                         }
835                     });
836                 }
837                 this.processingimages = false;
838             }, this), 200)
839         },
840         treeview_dynload: function(node, cb) {
841             var retrieved_children = {};
842             if (node.children) {
843                 for (var i in node.children) {
844                     retrieved_children[node.children[i].path] = node.children[i];
845                 }
846             }
847             this.request({
848                 action:'list',
849                 client_id: this.options.client_id,
850                 repository_id: this.active_repo.id,
851                 path:node.path?node.path:'',
852                 page:node.page?args.page:'',
853                 scope:this,
854                 callback: function(id, obj, args) {
855                     var list = obj.list;
856                     var scope = args.scope;
857                     // check that user did not leave the view mode before recieving this response
858                     if (!(scope.active_repo.id == obj.repo_id && scope.viewmode == 2 && node && node.getChildrenEl())) {
859                         return;
860                     }
861                     if (cb != null) { // (in manual mode do not update current path)
862                         scope.viewbar_set_enabled(true);
863                         scope.parse_repository_options(obj);
864                     }
865                     node.highlight(false);
866                     node.origlist = obj.list ? obj.list : null;
867                     node.origpath = obj.path ? obj.path : null;
868                     node.children = [];
869                     for(k in list) {
870                         if (list[k].children && retrieved_children[list[k].path]) {
871                             // if this child is a folder and has already been retrieved
872                             node.children[node.children.length] = retrieved_children[list[k].path];
873                         } else {
874                             // append new file to the list
875                             scope.view_as_list([list[k]]);
876                         }
877                     }
878                     if (cb == null) {
879                         node.refresh();
880                     } else {
881                         // invoke callback requested by TreeView component
882                         cb();
883                     }
884                     scope.content_scrolled();
885                 }
886             }, false);
887         },
888        classnamecallback : function(node) {
889             var classname = '';
890             if (node.children) {
891                 classname = classname + ' fp-folder';
892             }
893             if (node.isref) {
894                 classname = classname + ' fp-isreference';
895             }
896             if (node.refcount) {
897                 classname = classname + ' fp-hasreferences';
898             }
899             if (node.originalmissing) {
900                 classname = classname + ' fp-originalmissing';
901             }
902             return Y.Lang.trim(classname);
903         },
904         /** displays list of files in tree (list) view mode. If param appenditems is specified,
905          * appends those items to the end of the list. Otherwise (default behaviour)
906          * clears the contents and displays the items from this.filelist */
907         view_as_list: function(appenditems) {
908             var list = (appenditems != null) ? appenditems : this.filelist;
909             this.viewmode = 2;
910             if (!this.filelist || this.filelist.length==0 && (!this.filepath || !this.filepath.length)) {
911                 this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
912                 return;
913             }
915             var element_template = Y.Node.create(M.core_filepicker.templates.listfilename);
916             var options = {
917                 viewmode : this.viewmode,
918                 appendonly : (appenditems != null),
919                 filenode : element_template,
920                 callbackcontext : this,
921                 callback : function(e, node) {
922                     // TODO MDL-32736 e is not an event here but an object with properties 'event' and 'node'
923                     if (!node.children) {
924                         if (e.node.parent && e.node.parent.origpath) {
925                             // set the current path
926                             this.filepath = e.node.parent.origpath;
927                             this.filelist = e.node.parent.origlist;
928                             this.print_path();
929                         }
930                         this.select_file(node);
931                     } else {
932                         // save current path and filelist (in case we want to jump to other viewmode)
933                         this.filepath = e.node.origpath;
934                         this.filelist = e.node.origlist;
935                         this.currentpath = e.node.path;
936                         this.print_path();
937                         this.content_scrolled();
938                     }
939                 },
940                 classnamecallback : this.classnamecallback,
941                 dynload : this.active_repo.dynload,
942                 filepath : this.filepath,
943                 treeview_dynload : this.treeview_dynload
944             };
945             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
946         },
947         /** displays list of files in icon view mode. If param appenditems is specified,
948          * appends those items to the end of the list. Otherwise (default behaviour)
949          * clears the contents and displays the items from this.filelist */
950         view_as_icons: function(appenditems) {
951             this.viewmode = 1;
952             var list = (appenditems != null) ? appenditems : this.filelist;
953             var element_template = Y.Node.create(M.core_filepicker.templates.iconfilename);
954             if ((appenditems == null) && (!this.filelist || !this.filelist.length)) {
955                 this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
956                 return;
957             }
958             var options = {
959                 viewmode : this.viewmode,
960                 appendonly : (appenditems != null),
961                 filenode : element_template,
962                 callbackcontext : this,
963                 callback : function(e, node) {
964                     if (e.preventDefault) {
965                         e.preventDefault();
966                     }
967                     if(node.children) {
968                         if (this.active_repo.dynload) {
969                             this.list({'path':node.path});
970                         } else {
971                             this.filelist = node.children;
972                             this.view_files();
973                         }
974                     } else {
975                         this.select_file(node);
976                     }
977                 },
978                 classnamecallback : this.classnamecallback
979             };
980             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
981         },
982         /** displays list of files in table view mode. If param appenditems is specified,
983          * appends those items to the end of the list. Otherwise (default behaviour)
984          * clears the contents and displays the items from this.filelist */
985         view_as_table: function(appenditems) {
986             this.viewmode = 3;
987             var list = (appenditems != null) ? appenditems : this.filelist;
988             if (!appenditems && (!this.filelist || this.filelist.length==0) && !this.active_repo.hasmorepages) {
989                 this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
990                 return;
991             }
992             var element_template = Y.Node.create(M.core_filepicker.templates.listfilename);
993             var options = {
994                 viewmode : this.viewmode,
995                 appendonly : (appenditems != null),
996                 filenode : element_template,
997                 callbackcontext : this,
998                 sortable : !this.active_repo.hasmorepages,
999                 callback : function(e, node) {
1000                     if (e.preventDefault) {e.preventDefault();}
1001                     if (node.children) {
1002                         if (this.active_repo.dynload) {
1003                             this.list({'path':node.path});
1004                         } else {
1005                             this.filelist = node.children;
1006                             this.view_files();
1007                         }
1008                     } else {
1009                         this.select_file(node);
1010                     }
1011                 },
1012                 classnamecallback : this.classnamecallback
1013             };
1014             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
1015         },
1016         /** If more than one page available, requests and displays the files from the next page */
1017         request_next_page: function() {
1018             if (!this.active_repo.hasmorepages || this.active_repo.nextpagerequested) {
1019                 // nothing to load
1020                 return;
1021             }
1022             this.active_repo.nextpagerequested = true;
1023             var nextpage = this.active_repo.page+1;
1024             var args = {
1025                 page: nextpage,
1026                 repo_id: this.active_repo.id,
1027             };
1028             var action = this.active_repo.issearchresult ? 'search' : 'list';
1029             this.request({
1030                 path: this.currentpath,
1031                 scope: this,
1032                 action: action,
1033                 client_id: this.options.client_id,
1034                 repository_id: args.repo_id,
1035                 params: args,
1036                 callback: function(id, obj, args) {
1037                     var scope = args.scope;
1038                     // Check that we are still in the same repository and are expecting this page. We have no way
1039                     // to compare the requested page and the one returned, so we assume that if the last chunk
1040                     // of the breadcrumb is similar, then we probably are on the same page.
1041                     var samepage = true;
1042                     if (obj.path && scope.filepath) {
1043                         var pathbefore = scope.filepath[scope.filepath.length-1];
1044                         var pathafter = obj.path[obj.path.length-1];
1045                         if (pathbefore.path != pathafter.path) {
1046                             samepage = false;
1047                         }
1048                     }
1049                     if (scope.active_repo.hasmorepages && obj.list && obj.page &&
1050                             obj.repo_id == scope.active_repo.id &&
1051                             obj.page == scope.active_repo.page+1 && samepage) {
1052                         scope.parse_repository_options(obj, true);
1053                         scope.view_files(obj.list)
1054                     }
1055                 }
1056             }, false);
1057         },
1058         select_file: function(args) {
1059             this.selectui.show();
1060             var client_id = this.options.client_id;
1061             var selectnode = this.selectnode;
1062             var return_types = this.options.repositories[this.active_repo.id].return_types;
1063             selectnode.removeClass('loading');
1064             selectnode.one('.fp-saveas input').set('value', args.title);
1066             var imgnode = Y.Node.create('<img/>').
1067                 set('src', args.realthumbnail ? args.realthumbnail : args.thumbnail).
1068                 setStyle('maxHeight', ''+(args.thumbnail_height ? args.thumbnail_height : 90)+'px').
1069                 setStyle('maxWidth', ''+(args.thumbnail_width ? args.thumbnail_width : 90)+'px');
1070             selectnode.one('.fp-thumbnail').setContent('').appendChild(imgnode);
1072             // filelink is the array of file-link-types available for this repository in this env
1073             var filelinktypes = [2/*FILE_INTERNAL*/,1/*FILE_EXTERNAL*/,4/*FILE_REFERENCE*/];
1074             var filelink = {}, firstfilelink = null, filelinkcount = 0;
1075             for (var i in filelinktypes) {
1076                 var allowed = (return_types & filelinktypes[i]) &&
1077                     (this.options.return_types & filelinktypes[i]);
1078                 if (filelinktypes[i] == 1/*FILE_EXTERNAL*/ && !this.options.externallink && this.options.env == 'editor') {
1079                     // special configuration setting 'repositoryallowexternallinks' may prevent
1080                     // using external links in editor environment
1081                     allowed = false;
1082                 }
1083                 filelink[filelinktypes[i]] = allowed;
1084                 firstfilelink = (firstfilelink==null && allowed) ? filelinktypes[i] : firstfilelink;
1085                 filelinkcount += allowed ? 1 : 0;
1086             }
1087             // make radio buttons enabled if this file-link-type is available and only if there are more than one file-link-type option
1088             // check the first available file-link-type option
1089             for (var linktype in filelink) {
1090                 var el = selectnode.one('.fp-linktype-'+linktype);
1091                 el.addClassIf('uneditable', !(filelink[linktype] && filelinkcount>1));
1092                 el.one('input').set('disabled', (filelink[linktype] && filelinkcount>1) ? '' : 'disabled').
1093                     set('checked', (firstfilelink == linktype) ? 'checked' : '').simulate('change')
1094             }
1096             // TODO MDL-32532: attributes 'hasauthor' and 'haslicense' need to be obsolete,
1097             selectnode.one('.fp-setauthor input').set('value', args.author ? args.author : this.options.author);
1098             this.set_selected_license(selectnode.one('.fp-setlicense'), args.license);
1099             selectnode.one('form #filesource-'+client_id).set('value', args.source);
1101             // display static information about a file (when known)
1102             var attrs = ['datemodified','datecreated','size','license','author','dimensions'];
1103             for (var i in attrs) {
1104                 if (selectnode.one('.fp-'+attrs[i])) {
1105                     var value = (args[attrs[i]+'_f']) ? args[attrs[i]+'_f'] : (args[attrs[i]] ? args[attrs[i]] : '');
1106                     selectnode.one('.fp-'+attrs[i]).addClassIf('fp-unknown', ''+value == '')
1107                         .one('.fp-value').setContent(value);
1108                 }
1109             }
1110         },
1111         setup_select_file: function() {
1112             var client_id = this.options.client_id;
1113             var selectnode = this.selectnode;
1114             var getfile = selectnode.one('.fp-select-confirm');
1115             // bind labels with corresponding inputs
1116             selectnode.all('.fp-saveas,.fp-linktype-2,.fp-linktype-1,.fp-linktype-4,.fp-setauthor,.fp-setlicense').each(function (node) {
1117                 node.all('label').set('for', node.one('input,select').generateID());
1118             });
1119             selectnode.one('.fp-linktype-2 input').setAttrs({value: 2, name: 'linktype'});
1120             selectnode.one('.fp-linktype-1 input').setAttrs({value: 1, name: 'linktype'});
1121             selectnode.one('.fp-linktype-4 input').setAttrs({value: 4, name: 'linktype'});
1122             var changelinktype = function(e) {
1123                 if (e.currentTarget.get('checked')) {
1124                     var allowinputs = e.currentTarget.get('value') != 1/*FILE_EXTERNAL*/;
1125                     selectnode.all('.fp-setauthor,.fp-setlicense,.fp-saveas').each(function(node){
1126                         node.addClassIf('uneditable', !allowinputs);
1127                         node.all('input,select').set('disabled', allowinputs?'':'disabled');
1128                     });
1129                 }
1130             };
1131             selectnode.all('.fp-linktype-2,.fp-linktype-1,.fp-linktype-4').each(function (node) {
1132                 node.one('input').on('change', changelinktype, this);
1133             });
1134             this.populate_licenses_select(selectnode.one('.fp-setlicense select'));
1135             // register event on clicking submit button
1136             getfile.on('click', function(e) {
1137                 e.preventDefault();
1138                 var client_id = this.options.client_id;
1139                 var scope = this;
1140                 var repository_id = this.active_repo.id;
1141                 var title = selectnode.one('.fp-saveas input').get('value');
1142                 var filesource = selectnode.one('form #filesource-'+client_id).get('value');
1143                 var params = {'title':title, 'source':filesource, 'savepath': this.options.savepath};
1144                 var license = selectnode.one('.fp-setlicense select');
1145                 if (license) {
1146                     params['license'] = license.get('value');
1147                     var origlicense = selectnode.one('.fp-license .fp-value');
1148                     if (origlicense) {
1149                         origlicense = origlicense.getContent();
1150                     }
1151                     this.set_preference('recentlicense', license.get('value'));
1152                 }
1153                 params['author'] = selectnode.one('.fp-setauthor input').get('value');
1155                 var return_types = this.options.repositories[this.active_repo.id].return_types;
1156                 if (this.options.env == 'editor') {
1157                     // in editor, images are stored in '/' only
1158                     params.savepath = '/';
1159                 }
1160                 if ((this.options.externallink || this.options.env != 'editor') &&
1161                             (return_types & 1/*FILE_EXTERNAL*/) &&
1162                             (this.options.return_types & 1/*FILE_EXTERNAL*/) &&
1163                             selectnode.one('.fp-linktype-1 input').get('checked')) {
1164                     params['linkexternal'] = 'yes';
1165                 } else if ((return_types & 4/*FILE_REFERENCE*/) &&
1166                         (this.options.return_types & 4/*FILE_REFERENCE*/) &&
1167                         selectnode.one('.fp-linktype-4 input').get('checked')) {
1168                     params['usefilereference'] = '1';
1169                 }
1171                 selectnode.addClass('loading');
1172                 this.request({
1173                     action:'download',
1174                     client_id: client_id,
1175                     repository_id: repository_id,
1176                     'params': params,
1177                     onerror: function(id, obj, args) {
1178                         selectnode.removeClass('loading');
1179                         scope.selectui.hide();
1180                     },
1181                     callback: function(id, obj, args) {
1182                         selectnode.removeClass('loading');
1183                         if (obj.event == 'fileexists') {
1184                             scope.process_existing_file(obj);
1185                             return;
1186                         }
1187                         if (scope.options.editor_target && scope.options.env=='editor') {
1188                             scope.options.editor_target.value=obj.url;
1189                             scope.options.editor_target.onchange();
1190                         }
1191                         scope.hide();
1192                         obj.client_id = client_id;
1193                         var formcallback_scope = args.scope.options.magicscope ? args.scope.options.magicscope : args.scope;
1194                         scope.options.formcallback.apply(formcallback_scope, [obj]);
1195                     }
1196                 }, false);
1197             }, this);
1198             var elform = selectnode.one('form');
1199             elform.appendChild(Y.Node.create('<input/>').
1200                 setAttrs({type:'hidden',id:'filesource-'+client_id}));
1201             elform.on('keydown', function(e) {
1202                 if (e.keyCode == 13) {
1203                     getfile.simulate('click');
1204                     e.preventDefault();
1205                 }
1206             }, this);
1207             var cancel = selectnode.one('.fp-select-cancel');
1208             cancel.on('click', function(e) {
1209                 e.preventDefault();
1210                 this.selectui.hide();
1211             }, this);
1212         },
1213         wait: function() {
1214             // First check there isn't already an interval in play, and if there is kill it now.
1215             if (this.waitinterval != null) {
1216                 clearInterval(this.waitinterval);
1217             }
1218             // Prepare the root node we will set content for and the loading template we want to display as a YUI node.
1219             var root = this.fpnode.one('.fp-content');
1220             var content = Y.Node.create(M.core_filepicker.templates.loading).addClass('fp-content-hidden').setStyle('opacity', 0);
1221             var count = 0;
1222             // Initiate an interval, we will have a count which will increment every 100 milliseconds.
1223             // Count 0 - the loading icon will have visibility set to hidden (invisible) and have an opacity of 0 (invisible also)
1224             // Count 5 - the visiblity will be switched to visible but opacity will still be at 0 (inivisible)
1225             // Counts 6 - 15 opacity will be increased by 0.1 making the loading icon visible over the period of a second
1226             // Count 16 - The interval will be cancelled.
1227             var interval = setInterval(function(){
1228                 if (!content || !root.contains(content) || count >= 15) {
1229                     clearInterval(interval);
1230                     return true;
1231                 }
1232                 if (count == 5) {
1233                     content.removeClass('fp-content-hidden');
1234                 } else if (count > 5) {
1235                     var opacity = parseFloat(content.getStyle('opacity'));
1236                     content.setStyle('opacity', opacity + 0.1);
1237                 }
1238                 count++;
1239                 return false;
1240             }, 100);
1241             // Store the wait interval so that we can check it in the future.
1242             this.waitinterval = interval;
1243             // Set the content to the loading template.
1244             root.setContent(content);
1245         },
1246         viewbar_set_enabled: function(mode) {
1247             var viewbar = this.fpnode.one('.fp-viewbar')
1248             if (viewbar) {
1249                 if (mode) {
1250                     viewbar.addClass('enabled').removeClass('disabled')
1251                 } else {
1252                     viewbar.removeClass('enabled').addClass('disabled')
1253                 }
1254             }
1255             this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').removeClass('checked')
1256             var modes = {1:'icons', 2:'tree', 3:'details'};
1257             this.fpnode.all('.fp-vb-'+modes[this.viewmode]).addClass('checked');
1258         },
1259         viewbar_clicked: function(e) {
1260             e.preventDefault();
1261             var viewbar = this.fpnode.one('.fp-viewbar')
1262             if (!viewbar || !viewbar.hasClass('disabled')) {
1263                 if (e.currentTarget.hasClass('fp-vb-tree')) {
1264                     this.viewmode = 2;
1265                 } else if (e.currentTarget.hasClass('fp-vb-details')) {
1266                     this.viewmode = 3;
1267                 } else {
1268                     this.viewmode = 1;
1269                 }
1270                 this.viewbar_set_enabled(true)
1271                 this.view_files();
1272                 this.set_preference('recentviewmode', this.viewmode);
1273             }
1274         },
1275         render: function() {
1276             var client_id = this.options.client_id;
1277             this.fpnode = Y.Node.createWithFilesSkin(M.core_filepicker.templates.generallayout).
1278                 set('id', 'filepicker-'+client_id);
1279             this.mainui = new Y.Panel({
1280                 srcNode      : this.fpnode,
1281                 headerContent: M.str.repository.filepicker,
1282                 zIndex       : 500000,
1283                 centered     : true,
1284                 modal        : true,
1285                 visible      : false,
1286                 minWidth     : this.fpnode.getStylePx('minWidth'),
1287                 minHeight    : this.fpnode.getStylePx('minHeight'),
1288                 maxWidth     : this.fpnode.getStylePx('maxWidth'),
1289                 maxHeight    : this.fpnode.getStylePx('maxHeight'),
1290                 render       : true
1291             });
1292             // allow to move the panel dragging it by it's header:
1293             this.mainui.plug(Y.Plugin.Drag,{handles:['#filepicker-'+client_id+' .yui3-widget-hd']});
1294             this.mainui.show();
1295             if (this.mainui.get('y') < 0) {
1296                 this.mainui.set('y', 0);
1297             }
1298             // create panel for selecting a file (initially hidden)
1299             this.selectnode = Y.Node.createWithFilesSkin(M.core_filepicker.templates.selectlayout).
1300                 set('id', 'filepicker-select-'+client_id);
1301             this.selectui = new Y.Panel({
1302                 srcNode      : this.selectnode,
1303                 zIndex       : 600000,
1304                 centered     : true,
1305                 modal        : true,
1306                 close        : true,
1307                 render       : true
1308             });
1309             // allow to move the panel dragging it by it's header:
1310             this.selectui.plug(Y.Plugin.Drag,{handles:['#filepicker-select-'+client_id+' .yui3-widget-hd']});
1311             this.selectui.hide();
1312             // event handler for lazy loading of thumbnails and next page
1313             this.fpnode.one('.fp-content').on(['scroll','resize'], this.content_scrolled, this);
1314             // save template for one path element and location of path bar
1315             if (this.fpnode.one('.fp-path-folder')) {
1316                 this.pathnode = this.fpnode.one('.fp-path-folder');
1317                 this.pathbar = this.pathnode.get('parentNode');
1318                 this.pathbar.removeChild(this.pathnode);
1319             }
1320             // assign callbacks for view mode switch buttons
1321             this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').
1322                 on('click', this.viewbar_clicked, this);
1323             // assign callbacks for toolbar links
1324             this.setup_toolbar();
1325             this.setup_select_file();
1326             this.hide_header();
1328             // processing repository listing
1329             // Resort the repositories by sortorder
1330             var sorted_repositories = [];
1331             for (var i in this.options.repositories) {
1332                 sorted_repositories[i] = this.options.repositories[i];
1333             }
1334             sorted_repositories.sort(function(a,b){return a.sortorder-b.sortorder});
1335             // extract one repository template and repeat it for all repositories available,
1336             // set name and icon and assign callbacks
1337             var reponode = this.fpnode.one('.fp-repo');
1338             if (reponode) {
1339                 var list = reponode.get('parentNode');
1340                 list.removeChild(reponode);
1341                 for (i in sorted_repositories) {
1342                     var repository = sorted_repositories[i];
1343                     var node = reponode.cloneNode(true);
1344                     list.appendChild(node);
1345                     node.
1346                         set('id', 'fp-repo-'+client_id+'-'+repository.id).
1347                         on('click', function(e, repository_id) {
1348                             e.preventDefault();
1349                             this.set_preference('recentrepository', repository_id);
1350                             this.hide_header();
1351                             this.list({'repo_id':repository_id});
1352                         }, this /*handler running scope*/, repository.id/*second argument of handler*/);
1353                     node.one('.fp-repo-name').setContent(repository.name);
1354                     node.one('.fp-repo-icon').set('src', repository.icon);
1355                     if (i==0) {
1356                         node.addClass('first');
1357                     }
1358                     if (i==sorted_repositories.length-1) {
1359                         node.addClass('last');
1360                     }
1361                     if (i%2) {
1362                         node.addClass('even');
1363                     } else {
1364                         node.addClass('odd');
1365                     }
1366                 }
1367             }
1368             // display error if no repositories found
1369             if (sorted_repositories.length==0) {
1370                 this.display_error(M.str.repository.norepositoriesavailable, 'norepositoriesavailable')
1371             }
1372             // display repository that was used last time
1373             this.show_recent_repository();
1374         },
1375         parse_repository_options: function(data, appendtolist) {
1376             if (appendtolist) {
1377                 if (data.list) {
1378                     if (!this.filelist) {
1379                         this.filelist = [];
1380                     }
1381                     for (var i in data.list) {
1382                         this.filelist[this.filelist.length] = data.list[i];
1383                     }
1384                 }
1385             } else {
1386                 this.filelist = data.list?data.list:null;
1387                 this.lazyloading = {};
1388             }
1389             this.filepath = data.path?data.path:null;
1390             this.objecttag = data.object?data.object:null;
1391             this.active_repo = {};
1392             this.active_repo.issearchresult = data.issearchresult ? true : false;
1393             this.active_repo.dynload = data.dynload?data.dynload:false;
1394             this.active_repo.pages = Number(data.pages?data.pages:null);
1395             this.active_repo.page = Number(data.page?data.page:null);
1396             this.active_repo.hasmorepages = (this.active_repo.pages && this.active_repo.page && (this.active_repo.page < this.active_repo.pages || this.active_repo.pages == -1))
1397             this.active_repo.id = data.repo_id?data.repo_id:null;
1398             this.active_repo.nosearch = (data.login || data.nosearch); // this is either login form or 'nosearch' attribute set
1399             this.active_repo.norefresh = (data.login || data.norefresh); // this is either login form or 'norefresh' attribute set
1400             this.active_repo.nologin = (data.login || data.nologin); // this is either login form or 'nologin' attribute is set
1401             this.active_repo.logouttext = data.logouttext?data.logouttext:null;
1402             this.active_repo.logouturl = (data.logouturl || '');
1403             this.active_repo.message = (data.message || '');
1404             this.active_repo.help = data.help?data.help:null;
1405             this.active_repo.manage = data.manage?data.manage:null;
1406             this.print_header();
1407         },
1408         print_login: function(data) {
1409             this.parse_repository_options(data);
1410             var client_id = this.options.client_id;
1411             var repository_id = data.repo_id;
1412             var l = this.logindata = data.login;
1413             var loginurl = '';
1414             var action = data['login_btn_action'] ? data['login_btn_action'] : 'login';
1415             var form_id = 'fp-form-'+client_id;
1417             var loginform_node = Y.Node.create(M.core_filepicker.templates.loginform);
1418             loginform_node.one('form').set('id', form_id);
1419             this.fpnode.one('.fp-content').setContent('').appendChild(loginform_node);
1420             var templates = {
1421                 'popup' : loginform_node.one('.fp-login-popup'),
1422                 'textarea' : loginform_node.one('.fp-login-textarea'),
1423                 'select' : loginform_node.one('.fp-login-select'),
1424                 'text' : loginform_node.one('.fp-login-text'),
1425                 'radio' : loginform_node.one('.fp-login-radiogroup'),
1426                 'checkbox' : loginform_node.one('.fp-login-checkbox'),
1427                 'input' : loginform_node.one('.fp-login-input')
1428             };
1429             var container;
1430             for (var i in templates) {
1431                 if (templates[i]) {
1432                     container = templates[i].get('parentNode');
1433                     container.removeChild(templates[i]);
1434                 }
1435             }
1437             for(var k in l) {
1438                 if (templates[l[k].type]) {
1439                     var node = templates[l[k].type].cloneNode(true);
1440                 } else {
1441                     node = templates['input'].cloneNode(true);
1442                 }
1443                 if (l[k].type == 'popup') {
1444                     // submit button
1445                     loginurl = l[k].url;
1446                     var popupbutton = node.one('button');
1447                     popupbutton.on('click', function(e){
1448                         M.core_filepicker.active_filepicker = this;
1449                         window.open(loginurl, 'repo_auth', 'location=0,status=0,width=500,height=300,scrollbars=yes');
1450                         e.preventDefault();
1451                     }, this);
1452                     loginform_node.one('form').on('keydown', function(e) {
1453                         if (e.keyCode == 13) {
1454                             popupbutton.simulate('click');
1455                             e.preventDefault();
1456                         }
1457                     }, this);
1458                     loginform_node.all('.fp-login-submit').remove();
1459                     action = 'popup';
1460                 } else if(l[k].type=='textarea') {
1461                     // textarea element
1462                     if (node.one('label')) {
1463                         node.one('label').set('for', l[k].id).setContent(l[k].label);
1464                     }
1465                     node.one('textarea').setAttrs({id:l[k].id, name:l[k].name});
1466                 } else if(l[k].type=='select') {
1467                     // select element
1468                     if (node.one('label')) {
1469                         node.one('label').set('for', l[k].id).setContent(l[k].label);
1470                     }
1471                     node.one('select').setAttrs({id:l[k].id, name:l[k].name}).setContent('');
1472                     for (i in l[k].options) {
1473                         node.one('select').appendChild(
1474                             Y.Node.create('<option/>').
1475                                 set('value', l[k].options[i].value).
1476                                 setContent(l[k].options[i].label));
1477                     }
1478                 } else if(l[k].type=='radio') {
1479                     // radio input element
1480                     node.all('label').setContent(l[k].label);
1481                     var list = l[k].value.split('|');
1482                     var labels = l[k].value_label.split('|');
1483                     var radionode = null;
1484                     for(var item in list) {
1485                         if (radionode == null) {
1486                             radionode = node.one('.fp-login-radio');
1487                             radionode.one('input').set('checked', 'checked');
1488                         } else {
1489                             var x = radionode.cloneNode(true);
1490                             radionode.insert(x, 'after');
1491                             radionode = x;
1492                             radionode.one('input').set('checked', '');
1493                         }
1494                         radionode.one('input').setAttrs({id:''+l[k].id+item, name:l[k].name,
1495                             type:l[k].type, value:list[item]});
1496                         radionode.all('label').setContent(labels[item]).set('for', ''+l[k].id+item)
1497                     }
1498                     if (radionode == null) {
1499                         node.one('.fp-login-radio').remove();
1500                     }
1501                 } else {
1502                     // input element
1503                     if (node.one('label')) { node.one('label').set('for', l[k].id).setContent(l[k].label) }
1504                     node.one('input').
1505                         set('type', l[k].type).
1506                         set('id', l[k].id).
1507                         set('name', l[k].name).
1508                         set('value', l[k].value?l[k].value:'')
1509                 }
1510                 container.appendChild(node);
1511             }
1512             // custom label text for submit button
1513             if (data['login_btn_label']) {
1514                 loginform_node.all('.fp-login-submit').setContent(data['login_btn_label'])
1515             }
1516             // register button action for login and search
1517             if (action == 'login' || action == 'search') {
1518                 loginform_node.one('.fp-login-submit').on('click', function(e){
1519                     e.preventDefault();
1520                     this.hide_header();
1521                     this.request({
1522                         'scope': this,
1523                         'action':(action == 'search') ? 'search' : 'signin',
1524                         'path': '',
1525                         'client_id': client_id,
1526                         'repository_id': repository_id,
1527                         'form': {id:form_id, upload:false, useDisabled:true},
1528                         'callback': this.display_response
1529                     }, true);
1530                 }, this);
1531             }
1532             // if 'Enter' is pressed in the form, simulate the button click
1533             if (loginform_node.one('.fp-login-submit')) {
1534                 loginform_node.one('form').on('keydown', function(e) {
1535                     if (e.keyCode == 13) {
1536                         loginform_node.one('.fp-login-submit').simulate('click')
1537                         e.preventDefault();
1538                     }
1539                 }, this);
1540             }
1541         },
1542         display_response: function(id, obj, args) {
1543             var scope = args.scope
1544             // highlight the current repository in repositories list
1545             scope.fpnode.all('.fp-repo.active').removeClass('active');
1546             scope.fpnode.all('#fp-repo-'+scope.options.client_id+'-'+obj.repo_id).addClass('active')
1547             // add class repository_REPTYPE to the filepicker (for repository-specific styles)
1548             for (var i in scope.options.repositories) {
1549                 scope.fpnode.removeClass('repository_'+scope.options.repositories[i].type)
1550             }
1551             if (obj.repo_id && scope.options.repositories[obj.repo_id]) {
1552                 scope.fpnode.addClass('repository_'+scope.options.repositories[obj.repo_id].type)
1553             }
1554             // display response
1555             if (obj.login) {
1556                 scope.viewbar_set_enabled(false);
1557                 scope.print_login(obj);
1558             } else if (obj.upload) {
1559                 scope.viewbar_set_enabled(false);
1560                 scope.parse_repository_options(obj);
1561                 scope.create_upload_form(obj);
1562             } else if (obj.object) {
1563                 M.core_filepicker.active_filepicker = scope;
1564                 scope.viewbar_set_enabled(false);
1565                 scope.parse_repository_options(obj);
1566                 scope.create_object_container(obj.object);
1567             } else if (obj.list) {
1568                 scope.viewbar_set_enabled(true);
1569                 scope.parse_repository_options(obj);
1570                 scope.view_files();
1571             }
1572         },
1573         list: function(args) {
1574             if (!args) {
1575                 args = {};
1576             }
1577             if (!args.repo_id) {
1578                 args.repo_id = this.active_repo.id;
1579             }
1580             if (!args.path) {
1581                 args.path = '';
1582             }
1583             this.currentpath = args.path;
1584             this.request({
1585                 action: 'list',
1586                 client_id: this.options.client_id,
1587                 repository_id: args.repo_id,
1588                 path: args.path,
1589                 page: args.page,
1590                 scope: this,
1591                 callback: this.display_response
1592             }, true);
1593         },
1594         populate_licenses_select: function(node) {
1595             if (!node) {
1596                 return;
1597             }
1598             node.setContent('');
1599             var licenses = this.options.licenses;
1600             var recentlicense = this.get_preference('recentlicense');
1601             if (recentlicense) {
1602                 this.options.defaultlicense=recentlicense;
1603             }
1604             for (var i in licenses) {
1605                 var option = Y.Node.create('<option/>').
1606                     set('selected', (this.options.defaultlicense==licenses[i].shortname)).
1607                     set('value', licenses[i].shortname).
1608                     setContent(licenses[i].fullname);
1609                 node.appendChild(option)
1610             }
1611         },
1612         set_selected_license: function(node, value) {
1613             var licenseset = false;
1614             node.all('option').each(function(el) {
1615                 if (el.get('value')==value || el.getContent()==value) {
1616                     el.set('selected', true);
1617                     licenseset = true;
1618                 }
1619             });
1620             if (!licenseset) {
1621                 // we did not find the value in the list
1622                 var recentlicense = this.get_preference('recentlicense');
1623                 node.all('option[selected]').set('selected', false);
1624                 node.all('option[value='+recentlicense+']').set('selected', true);
1625             }
1626         },
1627         create_object_container: function(data) {
1628             var content = this.fpnode.one('.fp-content');
1629             content.setContent('');
1630             //var str = '<object data="'+data.src+'" type="'+data.type+'" width="98%" height="98%" id="container_object" class="fp-object-container mdl-align"></object>';
1631             var container = Y.Node.create('<object/>').
1632                 setAttrs({data:data.src, type:data.type, id:'container_object'}).
1633                 addClass('fp-object-container');
1634             content.setContent('').appendChild(container);
1635         },
1636         create_upload_form: function(data) {
1637             var client_id = this.options.client_id;
1638             var id = data.upload.id+'_'+client_id;
1639             var content = this.fpnode.one('.fp-content');
1640             var template_name = 'uploadform_'+this.options.repositories[data.repo_id].type;
1641             var template = M.core_filepicker.templates[template_name] || M.core_filepicker.templates['uploadform'];
1642             content.setContent(template);
1644             content.all('.fp-file,.fp-saveas,.fp-setauthor,.fp-setlicense').each(function (node) {
1645                 node.all('label').set('for', node.one('input,select').generateID());
1646             });
1647             content.one('form').set('id', id);
1648             content.one('.fp-file input').set('name', 'repo_upload_file');
1649             if (data.upload.label && content.one('.fp-file label')) {
1650                 content.one('.fp-file label').setContent(data.upload.label);
1651             }
1652             content.one('.fp-saveas input').set('name', 'title');
1653             content.one('.fp-setauthor input').setAttrs({name:'author', value:this.options.author});
1654             content.one('.fp-setlicense select').set('name', 'license');
1655             this.populate_licenses_select(content.one('.fp-setlicense select'))
1656             // append hidden inputs to the upload form
1657             content.one('form').appendChild(Y.Node.create('<input/>').
1658                 setAttrs({type:'hidden',name:'itemid',value:this.options.itemid}));
1659             var types = this.options.accepted_types;
1660             for (var i in types) {
1661                 content.one('form').appendChild(Y.Node.create('<input/>').
1662                     setAttrs({type:'hidden',name:'accepted_types[]',value:types[i]}));
1663             }
1665             var scope = this;
1666             content.one('.fp-upload-btn').on('click', function(e) {
1667                 e.preventDefault();
1668                 var license = content.one('.fp-setlicense select');
1670                 this.set_preference('recentlicense', license.get('value'));
1671                 if (!content.one('.fp-file input').get('value')) {
1672                     scope.print_msg(M.str.repository.nofilesattached, 'error');
1673                     return false;
1674                 }
1675                 this.hide_header();
1676                 scope.request({
1677                         scope: scope,
1678                         action:'upload',
1679                         client_id: client_id,
1680                         params: {'savepath':scope.options.savepath},
1681                         repository_id: scope.active_repo.id,
1682                         form: {id: id, upload:true},
1683                         onerror: function(id, o, args) {
1684                             scope.create_upload_form(data);
1685                         },
1686                         callback: function(id, o, args) {
1687                             if (o.event == 'fileexists') {
1688                                 scope.create_upload_form(data);
1689                                 scope.process_existing_file(o);
1690                                 return;
1691                             }
1692                             if (scope.options.editor_target&&scope.options.env=='editor') {
1693                                 scope.options.editor_target.value=o.url;
1694                                 scope.options.editor_target.onchange();
1695                             }
1696                             scope.hide();
1697                             o.client_id = client_id;
1698                             var formcallback_scope = args.scope.options.magicscope ? args.scope.options.magicscope : args.scope;
1699                             scope.options.formcallback.apply(formcallback_scope, [o]);
1700                         }
1701                 }, true);
1702             }, this);
1703         },
1704         /** setting handlers and labels for elements in toolbar. Called once during the initial render of filepicker */
1705         setup_toolbar: function() {
1706             var client_id = this.options.client_id;
1707             var toolbar = this.fpnode.one('.fp-toolbar');
1708             toolbar.one('.fp-tb-logout').one('a,button').on('click', function(e) {
1709                 e.preventDefault();
1710                 if (!this.active_repo.nologin) {
1711                     this.hide_header();
1712                     this.request({
1713                         action:'logout',
1714                         client_id: this.options.client_id,
1715                         repository_id: this.active_repo.id,
1716                         path:'',
1717                         callback: this.display_response
1718                     }, true);
1719                 }
1720                 if (this.active_repo.logouturl) {
1721                     window.open(this.active_repo.logouturl, 'repo_auth', 'location=0,status=0,width=500,height=300,scrollbars=yes');
1722                 }
1723             }, this);
1724             toolbar.one('.fp-tb-refresh').one('a,button').on('click', function(e) {
1725                 e.preventDefault();
1726                 if (!this.active_repo.norefresh) {
1727                     this.list({ path: this.currentpath });
1728                 }
1729             }, this);
1730             toolbar.one('.fp-tb-search form').
1731                 set('method', 'POST').
1732                 set('id', 'fp-tb-search-'+client_id).
1733                 on('submit', function(e) {
1734                     e.preventDefault();
1735                     if (!this.active_repo.nosearch) {
1736                         this.request({
1737                             scope: this,
1738                             action:'search',
1739                             client_id: this.options.client_id,
1740                             repository_id: this.active_repo.id,
1741                             form: {id: 'fp-tb-search-'+client_id, upload:false, useDisabled:true},
1742                             callback: this.display_response
1743                         }, true);
1744                     }
1745             }, this);
1747             // it does not matter what kind of element is .fp-tb-manage, we create a dummy <a>
1748             // element and use it to open url on click event
1749             var managelnk = Y.Node.create('<a/>').
1750                 setAttrs({id:'fp-tb-manage-'+client_id+'-link', target:'_blank'}).
1751                 setStyle('display', 'none');
1752             toolbar.append(managelnk);
1753             toolbar.one('.fp-tb-manage').one('a,button').
1754                 on('click', function(e) {
1755                     e.preventDefault();
1756                     managelnk.simulate('click')
1757                 });
1759             // same with .fp-tb-help
1760             var helplnk = Y.Node.create('<a/>').
1761                 setAttrs({id:'fp-tb-help-'+client_id+'-link', target:'_blank'}).
1762                 setStyle('display', 'none');
1763             toolbar.append(helplnk);
1764             toolbar.one('.fp-tb-help').one('a,button').
1765                 on('click', function(e) {
1766                     e.preventDefault();
1767                     helplnk.simulate('click')
1768                 });
1769         },
1770         hide_header: function() {
1771             if (this.fpnode.one('.fp-toolbar')) {
1772                 this.fpnode.one('.fp-toolbar').addClass('empty');
1773             }
1774             if (this.pathbar) {
1775                 this.pathbar.setContent('').addClass('empty');
1776             }
1777         },
1778         print_header: function() {
1779             var r = this.active_repo;
1780             var scope = this;
1781             var client_id = this.options.client_id;
1782             this.hide_header();
1783             this.print_path();
1784             var toolbar = this.fpnode.one('.fp-toolbar');
1785             if (!toolbar) { return; }
1787             var enable_tb_control = function(node, enabled) {
1788                 if (!node) { return; }
1789                 node.addClassIf('disabled', !enabled).addClassIf('enabled', enabled)
1790                 if (enabled) {
1791                     toolbar.removeClass('empty');
1792                 }
1793             }
1795             // TODO 'back' permanently disabled for now. Note, flickr_public uses 'Logout' for it!
1796             enable_tb_control(toolbar.one('.fp-tb-back'), false);
1798             // search form
1799             enable_tb_control(toolbar.one('.fp-tb-search'), !r.nosearch);
1800             if(!r.nosearch) {
1801                 var searchform = toolbar.one('.fp-tb-search form');
1802                 searchform.setContent('');
1803                 this.request({
1804                     scope: this,
1805                     action:'searchform',
1806                     repository_id: this.active_repo.id,
1807                     callback: function(id, obj, args) {
1808                         if (obj.repo_id == scope.active_repo.id && obj.form) {
1809                             // if we did not jump to another repository meanwhile
1810                             searchform.setContent(obj.form);
1811                             // Highlight search text when user click for search.
1812                             var searchnode = searchform.one('input[name="s"]');
1813                             if (searchnode) {
1814                                 searchnode.once('click', function(e) {
1815                                     e.preventDefault();
1816                                     this.select();
1817                                 });
1818                             }
1819                         }
1820                     }
1821                 }, false);
1822             }
1824             // refresh button
1825             // weather we use cache for this instance, this button will reload listing anyway
1826             enable_tb_control(toolbar.one('.fp-tb-refresh'), !r.norefresh);
1828             // login button
1829             enable_tb_control(toolbar.one('.fp-tb-logout'), !r.nologin);
1830             if (!r.nologin) {
1831                 var label = r.logouttext ? r.logouttext : M.str.repository.logout;
1832                 toolbar.one('.fp-tb-logout').one('a,button').setContent(label)
1833             }
1835             // manage url
1836             enable_tb_control(toolbar.one('.fp-tb-manage'), r.manage);
1837             Y.one('#fp-tb-manage-'+client_id+'-link').set('href', r.manage);
1839             // help url
1840             enable_tb_control(toolbar.one('.fp-tb-help'), r.help);
1841             Y.one('#fp-tb-help-'+client_id+'-link').set('href', r.help);
1843             // message
1844             if (toolbar.one('.fp-tb-message')) {
1845                 enable_tb_control(toolbar.one('.fp-tb-message'), r.message);
1846                 toolbar.one('.fp-tb-message').setContent(r.message);
1847             }
1848         },
1849         print_path: function() {
1850             if (!this.pathbar) {
1851                 return;
1852             }
1853             this.pathbar.setContent('').addClass('empty');
1854             var p = this.filepath;
1855             if (p && p.length!=0 && this.viewmode != 2) {
1856                 for(var i = 0; i < p.length; i++) {
1857                     var el = this.pathnode.cloneNode(true);
1858                     this.pathbar.appendChild(el);
1859                     if (i == 0) {
1860                         el.addClass('first');
1861                     }
1862                     if (i == p.length-1) {
1863                         el.addClass('last');
1864                     }
1865                     if (i%2) {
1866                         el.addClass('even');
1867                     } else {
1868                         el.addClass('odd');
1869                     }
1870                     el.all('.fp-path-folder-name').setContent(p[i].name);
1871                     el.on('click',
1872                             function(e, path) {
1873                                 e.preventDefault();
1874                                 this.list({'path':path});
1875                             },
1876                         this, p[i].path);
1877                 }
1878                 this.pathbar.removeClass('empty');
1879             }
1880         },
1881         hide: function() {
1882             this.selectui.hide();
1883             if (this.process_dlg) {
1884                 this.process_dlg.hide();
1885             }
1886             if (this.msg_dlg) {
1887                 this.msg_dlg.hide();
1888             }
1889             this.mainui.hide();
1890         },
1891         show: function() {
1892             if (this.fpnode) {
1893                 this.hide();
1894                 this.mainui.show();
1895                 this.show_recent_repository();
1896             } else {
1897                 this.launch();
1898             }
1899         },
1900         launch: function() {
1901             this.render();
1902         },
1903         show_recent_repository: function() {
1904             this.hide_header();
1905             this.viewbar_set_enabled(false);
1906             var repository_id = this.get_preference('recentrepository');
1907             this.viewmode = this.get_preference('recentviewmode');
1908             if (this.viewmode != 2 && this.viewmode != 3) {
1909                 this.viewmode = 1;
1910             }
1911             if (this.options.repositories[repository_id]) {
1912                 this.list({'repo_id':repository_id});
1913             }
1914         },
1915         get_preference: function (name) {
1916             if (this.options.userprefs[name]) {
1917                 return this.options.userprefs[name];
1918             } else {
1919                 return false;
1920             }
1921         },
1922         set_preference: function(name, value) {
1923             if (this.options.userprefs[name] != value) {
1924                 M.util.set_user_preference('filepicker_' + name, value);
1925                 this.options.userprefs[name] = value;
1926             }
1927         }
1928     });
1929     var loading = Y.one('#filepicker-loading-'+options.client_id);
1930     if (loading) {
1931         loading.setStyle('display', 'none');
1932     }
1933     M.core_filepicker.instances[options.client_id] = new FilePickerHelper(options);
1934 };