repository/filepicker.js

   1 // YUI3 File Picker module for moodle
   2 // Author: Dongsheng Cai <dongsheng@moodle.com>
   3
   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  */
  46
  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     }
  60
  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     }
  70
  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     }
  77
  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     }
  95
  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     }
 114
 115     /** scan TreeView to find which node contains image with id=imgid and replace it's html
 116      * with the new image source. */
 117     Y.YUI2.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     }
 138
 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));
 192
 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 Y.YUI2.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 Y.YUI2.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                 Y.YUI2.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 parentid = scope.one('.'+classname).get('id');
 325             var cols = [
 326                 {key: "displayname", label: M.str.moodle.name, allowHTML: true, formatter: formatTitle,
 327                     sortable: true, sortFn: sortFoldersFirst},
 328                 {key: "datemodified", label: M.str.moodle.lastmodified, allowHTML: true, formatter: formatValue,
 329                     sortable: true, sortFn: sortFoldersFirst},
 330                 {key: "size", label: M.str.repository.size, allowHTML: true, formatter: formatValue,
 331                     sortable: true, sortFn: sortFoldersFirst},
 332                 {key: "mimetype", label: M.str.repository.type, allowHTML: true,
 333                     sortable: true, sortFn: sortFoldersFirst}
 334             ];
 335             scope.tableview = new Y.DataTable({columns: cols});
 336             scope.tableview.render('#'+parentid);
 337             scope.tableview.delegate('click', function (e, tableview) {
 338                 var record = tableview.getRecord(e.currentTarget.get('id'));
 339                 if (record) {
 340                     var callback = options.callback;
 341                     if (options.rightclickcallback && e.target.ancestor('.fp-tableview .fp-contextmenu', true)) {
 342                         callback = options.rightclickcallback;
 343                     }
 344                     Y.bind(callback, this)(e, record.getAttrs());
 345                 }
 346             }, 'tr', options.callbackcontext, scope.tableview);
 347             if (options.rightclickcallback) {
 348                 scope.tableview.delegate('contextmenu', function (e, tableview) {
 349                     var record = tableview.getRecord(e.currentTarget.get('id'));
 350                     if (record) { Y.bind(options.rightclickcallback, this)(e, record.getAttrs()); }
 351                 }, 'tr', options.callbackcontext, scope.tableview);
 352             }
 353         }
 354         /** append items in table view mode */
 355         var append_files_table = function() {
 356             for (var k in fileslist) {
 357                 // to speed up sorting and formatting
 358                 fileslist[k].displayname = file_get_displayname(fileslist[k]);
 359                 fileslist[k].isfolder = file_is_folder(fileslist[k]);
 360                 fileslist[k].classname = options.classnamecallback(fileslist[k]);
 361             }
 362             scope.tableview.addRows(fileslist);
 363             scope.tableview.sortable = options.sortable ? true : false;
 364         };
 365         /** append items in tree view mode */
 366         var append_files_tree = function() {
 367             if (options.appendonly) {
 368                 var parentnode = scope.treeview.getRoot();
 369                 if (scope.treeview.getHighlightedNode()) {
 370                     parentnode = scope.treeview.getHighlightedNode();
 371                     if (parentnode.isLeaf) {parentnode = parentnode.parent;}
 372                 }
 373                 for (var k in fileslist) {
 374                     build_tree(fileslist[k], parentnode);
 375                 }
 376                 scope.treeview.draw();
 377             } else {
 378                 // otherwise files were already added in initialize_tree_view()
 379             }
 380         }
 381         /** append items in icon view mode */
 382         var append_files_icons = function() {
 383             parent = scope.one('.'+classname);
 384             for (var k in fileslist) {
 385                 var node = fileslist[k];
 386                 var element = options.filenode.cloneNode(true);
 387                 parent.appendChild(element);
 388                 element.addClass(options.classnamecallback(node));
 389                 var filenamediv = element.one('.fp-filename');
 390                 filenamediv.setContent(file_get_displayname(node));
 391                 var imgdiv = element.one('.fp-thumbnail'), width, height, src;
 392                 if (node.thumbnail) {
 393                     width = node.thumbnail_width ? node.thumbnail_width : 90;
 394                     height = node.thumbnail_height ? node.thumbnail_height : 90;
 395                     src = node.thumbnail;
 396                 } else {
 397                     width = 16;
 398                     height = 16;
 399                     src = node.icon;
 400                 }
 401                 filenamediv.setStyleAdv('width', width);
 402                 imgdiv.setStyleAdv('width', width).setStyleAdv('height', height);
 403                 var img = Y.Node.create('<img/>').setAttrs({
 404                         title: file_get_description(node),
 405                         alt: node.thumbnail_alt ? node.thumbnail_alt : file_get_filename(node)}).
 406                     setStyle('maxWidth', ''+width+'px').
 407                     setStyle('maxHeight', ''+height+'px');
 408                 img.setImgSrc(src, node.realthumbnail, lazyloading);
 409                 imgdiv.appendChild(img);
 410                 element.on('click', function(e, nd) {
 411                     if (options.rightclickcallback && e.target.ancestor('.fp-iconview .fp-contextmenu', true)) {
 412                         Y.bind(options.rightclickcallback, this)(e, nd);
 413                     } else {
 414                         Y.bind(options.callback, this)(e, nd);
 415                     }
 416                 }, options.callbackcontext, node);
 417                 if (options.rightclickcallback) {
 418                     element.on('contextmenu', options.rightclickcallback, options.callbackcontext, node);
 419                 }
 420             }
 421         }
 422
 423         // initialize files view
 424         if (!options.appendonly) {
 425             var parent = Y.Node.create('<div/>').addClass(classname);
 426             this.setContent('').appendChild(parent);
 427             parent.generateID();
 428             if (options.viewmode == 2) {
 429                 initialize_tree_view();
 430             } else if (options.viewmode == 3) {
 431                 initialize_table_view();
 432             } else {
 433                 // nothing to initialize for icon view
 434             }
 435         }
 436
 437         // append files to the list
 438         if (options.viewmode == 2) {
 439             append_files_tree();
 440         } else if (options.viewmode == 3) {
 441             append_files_table();
 442         } else {
 443             append_files_icons();
 444         }
 445
 446     }
 447
 448     /**
 449      * creates a node and adds it to the div with id #filesskin. This is needed for CSS to be able
 450      * to overwrite YUI skin styles (instead of using !important that does not work in IE)
 451      */
 452     Y.Node.createWithFilesSkin = function(node) {
 453         if (!Y.one('#filesskin')) {
 454             Y.one(document.body).appendChild(Y.Node.create('<div/>').set('id', 'filesskin'));
 455         }
 456         return Y.one('#filesskin').appendChild(Y.Node.create(node));
 457     }
 458 }, '@VERSION@', {
 459     requires:['base', 'node', 'yui2-treeview', 'panel', 'cookie', 'datatable', 'datatable-sort']
 460 });
 461
 462 M.core_filepicker = M.core_filepicker || {};
 463
 464 /**
 465  * instances of file pickers used on page
 466  */
 467 M.core_filepicker.instances = M.core_filepicker.instances || {};
 468 M.core_filepicker.active_filepicker = null;
 469
 470 /**
 471  * HTML Templates to use in FilePicker
 472  */
 473 M.core_filepicker.templates = M.core_filepicker.templates || {};
 474
 475 /**
 476  * Array of image sources for real previews (realicon or realthumbnail) that are already loaded
 477  */
 478 M.core_filepicker.loadedpreviews = M.core_filepicker.loadedpreviews || {};
 479
 480 /**
 481 * Set selected file info
 482 *
 483 * @parma object file info
 484 */
 485 M.core_filepicker.select_file = function(file) {
 486     M.core_filepicker.active_filepicker.select_file(file);
 487 }
 488
 489 /**
 490  * Init and show file picker
 491  */
 492 M.core_filepicker.show = function(Y, options) {
 493     if (!M.core_filepicker.instances[options.client_id]) {
 494         M.core_filepicker.init(Y, options);
 495     }
 496     M.core_filepicker.instances[options.client_id].show();
 497 };
 498
 499 M.core_filepicker.set_templates = function(Y, templates) {
 500     for (var templid in templates) {
 501         M.core_filepicker.templates[templid] = templates[templid];
 502     }
 503 }
 504
 505 /**
 506  * Add new file picker to current instances
 507  */
 508 M.core_filepicker.init = function(Y, options) {
 509     var FilePickerHelper = function(options) {
 510         FilePickerHelper.superclass.constructor.apply(this, arguments);
 511     };
 512
 513     FilePickerHelper.NAME = "FilePickerHelper";
 514     FilePickerHelper.ATTRS = {
 515         options: {},
 516         lang: {}
 517     };
 518
 519     Y.extend(FilePickerHelper, Y.Base, {
 520         api: M.cfg.wwwroot+'/repository/repository_ajax.php',
 521         cached_responses: {},
 522         waitinterval : null, // When the loading template is being displayed and its animation is running this will be an interval instance.
 523         initializer: function(options) {
 524             this.options = options;
 525             if (!this.options.savepath) {
 526                 this.options.savepath = '/';
 527             }
 528         },
 529
 530         destructor: function() {
 531         },
 532
 533         request: function(args, redraw) {
 534             var api = (args.api ? args.api : this.api) + '?action='+args.action;
 535             var params = {};
 536             var scope = args['scope'] ? args['scope'] : this;
 537             params['repo_id']=args.repository_id;
 538             params['p'] = args.path?args.path:'';
 539             params['page'] = args.page?args.page:'';
 540             params['env']=this.options.env;
 541             // the form element only accept certain file types
 542             params['accepted_types']=this.options.accepted_types;
 543             params['sesskey'] = M.cfg.sesskey;
 544             params['client_id'] = args.client_id;
 545             params['itemid'] = this.options.itemid?this.options.itemid:0;
 546             params['maxbytes'] = this.options.maxbytes?this.options.maxbytes:-1;
 547             // The unlimited value of areamaxbytes is -1, it is defined by FILE_AREA_MAX_BYTES_UNLIMITED.
 548             params['areamaxbytes'] = this.options.areamaxbytes ? this.options.areamaxbytes : -1;
 549             if (this.options.context && this.options.context.id) {
 550                 params['ctx_id'] = this.options.context.id;
 551             }
 552             if (args['params']) {
 553                 for (i in args['params']) {
 554                     params[i] = args['params'][i];
 555                 }
 556             }
 557             if (args.action == 'upload') {
 558                 var list = [];
 559                 for(var k in params) {
 560                     var value = params[k];
 561                     if(value instanceof Array) {
 562                         for(var i in value) {
 563                             list.push(k+'[]='+value[i]);
 564                         }
 565                     } else {
 566                         list.push(k+'='+value);
 567                     }
 568                 }
 569                 params = list.join('&');
 570             } else {
 571                 params = build_querystring(params);
 572             }
 573             var cfg = {
 574                 method: 'POST',
 575                 on: {
 576                     complete: function(id,o,p) {
 577                         if (!o) {
 578                             // TODO
 579                             alert('IO FATAL');
 580                             return;
 581                         }
 582                         var data = null;
 583                         try {
 584                             data = Y.JSON.parse(o.responseText);
 585                         } catch(e) {
 586                             scope.print_msg(M.str.repository.invalidjson, 'error');
 587                             scope.display_error(M.str.repository.invalidjson+'<pre>'+stripHTML(o.responseText)+'</pre>', 'invalidjson')
 588                             return;
 589                         }
 590                         // error checking
 591                         if (data && data.error) {
 592                             scope.print_msg(data.error, 'error');
 593                             if (args.onerror) {
 594                                 args.onerror(id,data,p);
 595                             } else {
 596                                 this.fpnode.one('.fp-content').setContent('');
 597                             }
 598                             return;
 599                         } else {
 600                             if (data.msg) {
 601                                 scope.print_msg(data.msg, 'info');
 602                             }
 603                             // cache result if applicable
 604                             if (args.action != 'upload' && data.allowcaching) {
 605                                 scope.cached_responses[params] = data;
 606                             }
 607                             // invoke callback
 608                             args.callback(id,data,p);
 609                         }
 610                     }
 611                 },
 612                 arguments: {
 613                     scope: scope
 614                 },
 615                 headers: {
 616                     'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'
 617                 },
 618                 data: params,
 619                 context: this
 620             };
 621             if (args.form) {
 622                 cfg.form = args.form;
 623             }
 624             // check if result of the same request has been already cached. If not, request it
 625             // (never applicable in case of form submission and/or upload action):
 626             if (!args.form && args.action != 'upload' && scope.cached_responses[params]) {
 627                 args.callback(null, scope.cached_responses[params], {scope: scope})
 628             } else {
 629                 Y.io(api, cfg);
 630                 if (redraw) {
 631                     this.wait();
 632                 }
 633             }
 634         },
 635         /** displays the dialog and processes rename/overwrite if there is a file with the same name in the same filearea*/
 636         process_existing_file: function(data) {
 637             var scope = this;
 638             var handleOverwrite = function(e) {
 639                 // overwrite
 640                 e.preventDefault();
 641                 var data = this.process_dlg.dialogdata;
 642                 var params = {}
 643                 params['existingfilename'] = data.existingfile.filename;
 644                 params['existingfilepath'] = data.existingfile.filepath;
 645                 params['newfilename'] = data.newfile.filename;
 646                 params['newfilepath'] = data.newfile.filepath;
 647                 this.hide_header();
 648                 this.request({
 649                     'params': params,
 650                     'scope': this,
 651                     'action':'overwrite',
 652                     'path': '',
 653                     'client_id': this.options.client_id,
 654                     'repository_id': this.active_repo.id,
 655                     'callback': function(id, o, args) {
 656                         scope.hide();
 657                         // editor needs to update url
 658                         // filemanager do nothing
 659                         if (scope.options.editor_target && scope.options.env == 'editor') {
 660                             scope.options.editor_target.value = data.existingfile.url;
 661                             scope.options.editor_target.onchange();
 662                         } else if (scope.options.env === 'filepicker') {
 663                             var fileinfo = {'client_id':scope.options.client_id,
 664                                     'url':data.existingfile.url,
 665                                     'file':data.existingfile.filename};
 666                             var formcallback_scope = scope.options.magicscope ? scope.options.magicscope : scope;
 667                             scope.options.formcallback.apply(formcallback_scope, [fileinfo]);
 668                         }
 669                     }
 670                 }, true);
 671             }
 672             var handleRename = function(e) {
 673                 // inserts file with the new name
 674                 e.preventDefault();
 675                 var scope = this;
 676                 var data = this.process_dlg.dialogdata;
 677                 if (scope.options.editor_target && scope.options.env == 'editor') {
 678                     scope.options.editor_target.value = data.newfile.url;
 679                     scope.options.editor_target.onchange();
 680                 }
 681                 scope.hide();
 682                 var formcallback_scope = scope.options.magicscope ? scope.options.magicscope : scope;
 683                 var fileinfo = {'client_id':scope.options.client_id,
 684                                 'url':data.newfile.url,
 685                                 'file':data.newfile.filename};
 686                 scope.options.formcallback.apply(formcallback_scope, [fileinfo]);
 687             }
 688             var handleCancel = function(e) {
 689                 // Delete tmp file
 690                 e.preventDefault();
 691                 var params = {};
 692                 params['newfilename'] = this.process_dlg.dialogdata.newfile.filename;
 693                 params['newfilepath'] = this.process_dlg.dialogdata.newfile.filepath;
 694                 this.request({
 695                     'params': params,
 696                     'scope': this,
 697                     'action':'deletetmpfile',
 698                     'path': '',
 699                     'client_id': this.options.client_id,
 700                     'repository_id': this.active_repo.id,
 701                     'callback': function(id, o, args) {
 702                         // let it be in background, from user point of view nothing is happenning
 703                     }
 704                 }, false);
 705                 this.process_dlg.hide();
 706                 this.selectui.hide();
 707             }
 708             if (!this.process_dlg) {
 709                 this.process_dlg_node = Y.Node.createWithFilesSkin(M.core_filepicker.templates.processexistingfile);
 710                 var node = this.process_dlg_node;
 711                 node.generateID();
 712                 this.process_dlg = new Y.Panel({
 713                     srcNode      : node,
 714                     headerContent: M.str.repository.fileexistsdialogheader,
 715                     zIndex       : 8000,
 716                     centered     : true,
 717                     modal        : true,
 718                     visible      : false,
 719                     render       : true,
 720                     buttons      : {}
 721                 });
 722                 this.process_dlg.plug(Y.Plugin.Drag,{handles:['#'+node.get('id')+' .yui3-widget-hd']});
 723                 node.one('.fp-dlg-butoverwrite').on('click', handleOverwrite, this);
 724                 node.one('.fp-dlg-butrename').on('click', handleRename, this);
 725                 node.one('.fp-dlg-butcancel').on('click', handleCancel, this);
 726                 if (this.options.env == 'editor') {
 727                     node.one('.fp-dlg-text').setContent(M.str.repository.fileexistsdialog_editor);
 728                 } else {
 729                     node.one('.fp-dlg-text').setContent(M.str.repository.fileexistsdialog_filemanager);
 730                 }
 731             }
 732             this.selectnode.removeClass('loading');
 733             this.process_dlg.dialogdata = data;
 734             this.process_dlg_node.one('.fp-dlg-butrename').setContent(M.util.get_string('renameto', 'repository', data.newfile.filename));
 735             this.process_dlg.show();
 736         },
 737         /** displays error instead of filepicker contents */
 738         display_error: function(errortext, errorcode) {
 739             this.fpnode.one('.fp-content').setContent(M.core_filepicker.templates.error);
 740             this.fpnode.one('.fp-content .fp-error').
 741                 addClass(errorcode).
 742                 setContent(errortext);
 743         },
 744         /** displays message in a popup */
 745         print_msg: function(msg, type) {
 746             var header = M.str.moodle.error;
 747             if (type != 'error') {
 748                 type = 'info'; // one of only two types excepted
 749                 header = M.str.moodle.info;
 750             }
 751             if (!this.msg_dlg) {
 752                 this.msg_dlg_node = Y.Node.createWithFilesSkin(M.core_filepicker.templates.message);
 753                 this.msg_dlg_node.generateID();
 754
 755                 this.msg_dlg = new Y.Panel({
 756                     srcNode      : this.msg_dlg_node,
 757                     zIndex       : 8000,
 758                     centered     : true,
 759                     modal        : true,
 760                     visible      : false,
 761                     render       : true
 762                 });
 763                 this.msg_dlg.plug(Y.Plugin.Drag,{handles:['#'+this.msg_dlg_node.get('id')+' .yui3-widget-hd']});
 764                 this.msg_dlg_node.one('.fp-msg-butok').on('click', function(e) {
 765                     e.preventDefault();
 766                     this.msg_dlg.hide();
 767                 }, this);
 768             }
 769
 770             this.msg_dlg.set('headerContent', header);
 771             this.msg_dlg_node.removeClass('fp-msg-info').removeClass('fp-msg-error').addClass('fp-msg-'+type)
 772             this.msg_dlg_node.one('.fp-msg-text').setContent(msg);
 773             this.msg_dlg.show();
 774         },
 775         view_files: function(appenditems) {
 776             this.viewbar_set_enabled(true);
 777             this.print_path();
 778             /*if ((appenditems == null) && (!this.filelist || !this.filelist.length) && !this.active_repo.hasmorepages) {
 779              // TODO do it via classes and adjust for each view mode!
 780                 // If there are no items and no next page, just display status message and quit
 781                 this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
 782                 return;
 783             }*/
 784             if (this.viewmode == 2) {
 785                 this.view_as_list(appenditems);
 786             } else if (this.viewmode == 3) {
 787                 this.view_as_table(appenditems);
 788             } else {
 789                 this.view_as_icons(appenditems);
 790             }
 791             // display/hide the link for requesting next page
 792             if (!appenditems && this.active_repo.hasmorepages) {
 793                 if (!this.fpnode.one('.fp-content .fp-nextpage')) {
 794                     this.fpnode.one('.fp-content').append(M.core_filepicker.templates.nextpage);
 795                 }
 796                 this.fpnode.one('.fp-content .fp-nextpage').one('a,button').on('click', function(e) {
 797                     e.preventDefault();
 798                     this.fpnode.one('.fp-content .fp-nextpage').addClass('loading');
 799                     this.request_next_page();
 800                 }, this);
 801             }
 802             if (!this.active_repo.hasmorepages && this.fpnode.one('.fp-content .fp-nextpage')) {
 803                 this.fpnode.one('.fp-content .fp-nextpage').remove();
 804             }
 805             if (this.fpnode.one('.fp-content .fp-nextpage')) {
 806                 this.fpnode.one('.fp-content .fp-nextpage').removeClass('loading');
 807             }
 808             this.content_scrolled();
 809         },
 810         content_scrolled: function(e) {
 811             setTimeout(Y.bind(function() {
 812                 if (this.processingimages) {
 813                     return;
 814                 }
 815                 this.processingimages = true;
 816                 var scope = this,
 817                     fpcontent = this.fpnode.one('.fp-content'),
 818                     fpcontenty = fpcontent.getY(),
 819                     fpcontentheight = fpcontent.getStylePx('height'),
 820                     nextpage = fpcontent.one('.fp-nextpage'),
 821                     is_node_visible = function(node) {
 822                         var offset = node.getY()-fpcontenty;
 823                         if (offset <= fpcontentheight && (offset >=0 || offset+node.getStylePx('height')>=0)) {
 824                             return true;
 825                         }
 826                         return false;
 827                     };
 828                 // automatically load next page when 'more' link becomes visible
 829                 if (nextpage && !nextpage.hasClass('loading') && is_node_visible(nextpage)) {
 830                     nextpage.one('a,button').simulate('click');
 831                 }
 832                 // replace src for visible images that need to be lazy-loaded
 833                 if (scope.lazyloading) {
 834                     fpcontent.all('img').each( function(node) {
 835                         if (node.get('id') && scope.lazyloading[node.get('id')] && is_node_visible(node)) {
 836                             node.setImgRealSrc(scope.lazyloading);
 837                         }
 838                     });
 839                 }
 840                 this.processingimages = false;
 841             }, this), 200)
 842         },
 843         treeview_dynload: function(node, cb) {
 844             var retrieved_children = {};
 845             if (node.children) {
 846                 for (var i in node.children) {
 847                     retrieved_children[node.children[i].path] = node.children[i];
 848                 }
 849             }
 850             this.request({
 851                 action:'list',
 852                 client_id: this.options.client_id,
 853                 repository_id: this.active_repo.id,
 854                 path:node.path?node.path:'',
 855                 page:node.page?args.page:'',
 856                 scope:this,
 857                 callback: function(id, obj, args) {
 858                     var list = obj.list;
 859                     var scope = args.scope;
 860                     // check that user did not leave the view mode before recieving this response
 861                     if (!(scope.active_repo.id == obj.repo_id && scope.viewmode == 2 && node && node.getChildrenEl())) {
 862                         return;
 863                     }
 864                     if (cb != null) { // (in manual mode do not update current path)
 865                         scope.viewbar_set_enabled(true);
 866                         scope.parse_repository_options(obj);
 867                     }
 868                     node.highlight(false);
 869                     node.origlist = obj.list ? obj.list : null;
 870                     node.origpath = obj.path ? obj.path : null;
 871                     node.children = [];
 872                     for(k in list) {
 873                         if (list[k].children && retrieved_children[list[k].path]) {
 874                             // if this child is a folder and has already been retrieved
 875                             node.children[node.children.length] = retrieved_children[list[k].path];
 876                         } else {
 877                             // append new file to the list
 878                             scope.view_as_list([list[k]]);
 879                         }
 880                     }
 881                     if (cb == null) {
 882                         node.refresh();
 883                     } else {
 884                         // invoke callback requested by TreeView component
 885                         cb();
 886                     }
 887                     scope.content_scrolled();
 888                 }
 889             }, false);
 890         },
 891        classnamecallback : function(node) {
 892             var classname = '';
 893             if (node.children) {
 894                 classname = classname + ' fp-folder';
 895             }
 896             if (node.isref) {
 897                 classname = classname + ' fp-isreference';
 898             }
 899             if (node.refcount) {
 900                 classname = classname + ' fp-hasreferences';
 901             }
 902             if (node.originalmissing) {
 903                 classname = classname + ' fp-originalmissing';
 904             }
 905             return Y.Lang.trim(classname);
 906         },
 907         /** displays list of files in tree (list) view mode. If param appenditems is specified,
 908          * appends those items to the end of the list. Otherwise (default behaviour)
 909          * clears the contents and displays the items from this.filelist */
 910         view_as_list: function(appenditems) {
 911             var list = (appenditems != null) ? appenditems : this.filelist;
 912             this.viewmode = 2;
 913             if (!this.filelist || this.filelist.length==0 && (!this.filepath || !this.filepath.length)) {
 914                 this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
 915                 return;
 916             }
 917
 918             var element_template = Y.Node.create(M.core_filepicker.templates.listfilename);
 919             var options = {
 920                 viewmode : this.viewmode,
 921                 appendonly : (appenditems != null),
 922                 filenode : element_template,
 923                 callbackcontext : this,
 924                 callback : function(e, node) {
 925                     // TODO MDL-32736 e is not an event here but an object with properties 'event' and 'node'
 926                     if (!node.children) {
 927                         if (e.node.parent && e.node.parent.origpath) {
 928                             // set the current path
 929                             this.filepath = e.node.parent.origpath;
 930                             this.filelist = e.node.parent.origlist;
 931                             this.print_path();
 932                         }
 933                         this.select_file(node);
 934                     } else {
 935                         // save current path and filelist (in case we want to jump to other viewmode)
 936                         this.filepath = e.node.origpath;
 937                         this.filelist = e.node.origlist;
 938                         this.currentpath = e.node.path;
 939                         this.print_path();
 940                         this.content_scrolled();
 941                     }
 942                 },
 943                 classnamecallback : this.classnamecallback,
 944                 dynload : this.active_repo.dynload,
 945                 filepath : this.filepath,
 946                 treeview_dynload : this.treeview_dynload
 947             };
 948             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
 949         },
 950         /** displays list of files in icon view mode. If param appenditems is specified,
 951          * appends those items to the end of the list. Otherwise (default behaviour)
 952          * clears the contents and displays the items from this.filelist */
 953         view_as_icons: function(appenditems) {
 954             this.viewmode = 1;
 955             var list = (appenditems != null) ? appenditems : this.filelist;
 956             var element_template = Y.Node.create(M.core_filepicker.templates.iconfilename);
 957             if ((appenditems == null) && (!this.filelist || !this.filelist.length)) {
 958                 this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
 959                 return;
 960             }
 961             var options = {
 962                 viewmode : this.viewmode,
 963                 appendonly : (appenditems != null),
 964                 filenode : element_template,
 965                 callbackcontext : this,
 966                 callback : function(e, node) {
 967                     if (e.preventDefault) {
 968                         e.preventDefault();
 969                     }
 970                     if(node.children) {
 971                         if (this.active_repo.dynload) {
 972                             this.list({'path':node.path});
 973                         } else {
 974                             this.filelist = node.children;
 975                             this.view_files();
 976                         }
 977                     } else {
 978                         this.select_file(node);
 979                     }
 980                 },
 981                 classnamecallback : this.classnamecallback
 982             };
 983             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
 984         },
 985         /** displays list of files in table view mode. If param appenditems is specified,
 986          * appends those items to the end of the list. Otherwise (default behaviour)
 987          * clears the contents and displays the items from this.filelist */
 988         view_as_table: function(appenditems) {
 989             this.viewmode = 3;
 990             var list = (appenditems != null) ? appenditems : this.filelist;
 991             if (!appenditems && (!this.filelist || this.filelist.length==0) && !this.active_repo.hasmorepages) {
 992                 this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
 993                 return;
 994             }
 995             var element_template = Y.Node.create(M.core_filepicker.templates.listfilename);
 996             var options = {
 997                 viewmode : this.viewmode,
 998                 appendonly : (appenditems != null),
 999                 filenode : element_template,
1000                 callbackcontext : this,
1001                 sortable : !this.active_repo.hasmorepages,
1002                 callback : function(e, node) {
1003                     if (e.preventDefault) {e.preventDefault();}
1004                     if (node.children) {
1005                         if (this.active_repo.dynload) {
1006                             this.list({'path':node.path});
1007                         } else {
1008                             this.filelist = node.children;
1009                             this.view_files();
1010                         }
1011                     } else {
1012                         this.select_file(node);
1013                     }
1014                 },
1015                 classnamecallback : this.classnamecallback
1016             };
1017             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
1018         },
1019         /** If more than one page available, requests and displays the files from the next page */
1020         request_next_page: function() {
1021             if (!this.active_repo.hasmorepages || this.active_repo.nextpagerequested) {
1022                 // nothing to load
1023                 return;
1024             }
1025             this.active_repo.nextpagerequested = true;
1026             var nextpage = this.active_repo.page+1;
1027             var args = {
1028                 page: nextpage,
1029                 repo_id: this.active_repo.id
1030             };
1031             var action = this.active_repo.issearchresult ? 'search' : 'list';
1032             this.request({
1033                 path: this.currentpath,
1034                 scope: this,
1035                 action: action,
1036                 client_id: this.options.client_id,
1037                 repository_id: args.repo_id,
1038                 params: args,
1039                 callback: function(id, obj, args) {
1040                     var scope = args.scope;
1041                     // Check that we are still in the same repository and are expecting this page. We have no way
1042                     // to compare the requested page and the one returned, so we assume that if the last chunk
1043                     // of the breadcrumb is similar, then we probably are on the same page.
1044                     var samepage = true;
1045                     if (obj.path && scope.filepath) {
1046                         var pathbefore = scope.filepath[scope.filepath.length-1];
1047                         var pathafter = obj.path[obj.path.length-1];
1048                         if (pathbefore.path != pathafter.path) {
1049                             samepage = false;
1050                         }
1051                     }
1052                     if (scope.active_repo.hasmorepages && obj.list && obj.page &&
1053                             obj.repo_id == scope.active_repo.id &&
1054                             obj.page == scope.active_repo.page+1 && samepage) {
1055                         scope.parse_repository_options(obj, true);
1056                         scope.view_files(obj.list)
1057                     }
1058                 }
1059             }, false);
1060         },
1061         select_file: function(args) {
1062             this.selectui.show();
1063             var client_id = this.options.client_id;
1064             var selectnode = this.selectnode;
1065             var return_types = this.options.repositories[this.active_repo.id].return_types;
1066             selectnode.removeClass('loading');
1067             selectnode.one('.fp-saveas input').set('value', args.title);
1068
1069             var imgnode = Y.Node.create('<img/>').
1070                 set('src', args.realthumbnail ? args.realthumbnail : args.thumbnail).
1071                 setStyle('maxHeight', ''+(args.thumbnail_height ? args.thumbnail_height : 90)+'px').
1072                 setStyle('maxWidth', ''+(args.thumbnail_width ? args.thumbnail_width : 90)+'px');
1073             selectnode.one('.fp-thumbnail').setContent('').appendChild(imgnode);
1074
1075             // filelink is the array of file-link-types available for this repository in this env
1076             var filelinktypes = [2/*FILE_INTERNAL*/,1/*FILE_EXTERNAL*/,4/*FILE_REFERENCE*/];
1077             var filelink = {}, firstfilelink = null, filelinkcount = 0;
1078             for (var i in filelinktypes) {
1079                 var allowed = (return_types & filelinktypes[i]) &&
1080                     (this.options.return_types & filelinktypes[i]);
1081                 if (filelinktypes[i] == 1/*FILE_EXTERNAL*/ && !this.options.externallink && this.options.env == 'editor') {
1082                     // special configuration setting 'repositoryallowexternallinks' may prevent
1083                     // using external links in editor environment
1084                     allowed = false;
1085                 }
1086                 filelink[filelinktypes[i]] = allowed;
1087                 firstfilelink = (firstfilelink==null && allowed) ? filelinktypes[i] : firstfilelink;
1088                 filelinkcount += allowed ? 1 : 0;
1089             }
1090             // make radio buttons enabled if this file-link-type is available and only if there are more than one file-link-type option
1091             // check the first available file-link-type option
1092             for (var linktype in filelink) {
1093                 var el = selectnode.one('.fp-linktype-'+linktype);
1094                 el.addClassIf('uneditable', !(filelink[linktype] && filelinkcount>1));
1095                 el.one('input').set('disabled', (filelink[linktype] && filelinkcount>1) ? '' : 'disabled').
1096                     set('checked', (firstfilelink == linktype) ? 'checked' : '').simulate('change')
1097             }
1098
1099             // TODO MDL-32532: attributes 'hasauthor' and 'haslicense' need to be obsolete,
1100             selectnode.one('.fp-setauthor input').set('value', args.author ? args.author : this.options.author);
1101             this.set_selected_license(selectnode.one('.fp-setlicense'), args.license);
1102             selectnode.one('form #filesource-'+client_id).set('value', args.source);
1103
1104             // display static information about a file (when known)
1105             var attrs = ['datemodified','datecreated','size','license','author','dimensions'];
1106             for (var i in attrs) {
1107                 if (selectnode.one('.fp-'+attrs[i])) {
1108                     var value = (args[attrs[i]+'_f']) ? args[attrs[i]+'_f'] : (args[attrs[i]] ? args[attrs[i]] : '');
1109                     selectnode.one('.fp-'+attrs[i]).addClassIf('fp-unknown', ''+value == '')
1110                         .one('.fp-value').setContent(value);
1111                 }
1112             }
1113         },
1114         setup_select_file: function() {
1115             var client_id = this.options.client_id;
1116             var selectnode = this.selectnode;
1117             var getfile = selectnode.one('.fp-select-confirm');
1118             // bind labels with corresponding inputs
1119             selectnode.all('.fp-saveas,.fp-linktype-2,.fp-linktype-1,.fp-linktype-4,.fp-setauthor,.fp-setlicense').each(function (node) {
1120                 node.all('label').set('for', node.one('input,select').generateID());
1121             });
1122             selectnode.one('.fp-linktype-2 input').setAttrs({value: 2, name: 'linktype'});
1123             selectnode.one('.fp-linktype-1 input').setAttrs({value: 1, name: 'linktype'});
1124             selectnode.one('.fp-linktype-4 input').setAttrs({value: 4, name: 'linktype'});
1125             var changelinktype = function(e) {
1126                 if (e.currentTarget.get('checked')) {
1127                     var allowinputs = e.currentTarget.get('value') != 1/*FILE_EXTERNAL*/;
1128                     selectnode.all('.fp-setauthor,.fp-setlicense,.fp-saveas').each(function(node){
1129                         node.addClassIf('uneditable', !allowinputs);
1130                         node.all('input,select').set('disabled', allowinputs?'':'disabled');
1131                     });
1132                 }
1133             };
1134             selectnode.all('.fp-linktype-2,.fp-linktype-1,.fp-linktype-4').each(function (node) {
1135                 node.one('input').on('change', changelinktype, this);
1136             });
1137             this.populate_licenses_select(selectnode.one('.fp-setlicense select'));
1138             // register event on clicking submit button
1139             getfile.on('click', function(e) {
1140                 e.preventDefault();
1141                 var client_id = this.options.client_id;
1142                 var scope = this;
1143                 var repository_id = this.active_repo.id;
1144                 var title = selectnode.one('.fp-saveas input').get('value');
1145                 var filesource = selectnode.one('form #filesource-'+client_id).get('value');
1146                 var params = {'title':title, 'source':filesource, 'savepath': this.options.savepath};
1147                 var license = selectnode.one('.fp-setlicense select');
1148                 if (license) {
1149                     params['license'] = license.get('value');
1150                     var origlicense = selectnode.one('.fp-license .fp-value');
1151                     if (origlicense) {
1152                         origlicense = origlicense.getContent();
1153                     }
1154                     this.set_preference('recentlicense', license.get('value'));
1155                 }
1156                 params['author'] = selectnode.one('.fp-setauthor input').get('value');
1157
1158                 var return_types = this.options.repositories[this.active_repo.id].return_types;
1159                 if (this.options.env == 'editor') {
1160                     // in editor, images are stored in '/' only
1161                     params.savepath = '/';
1162                 }
1163                 if ((this.options.externallink || this.options.env != 'editor') &&
1164                             (return_types & 1/*FILE_EXTERNAL*/) &&
1165                             (this.options.return_types & 1/*FILE_EXTERNAL*/) &&
1166                             selectnode.one('.fp-linktype-1 input').get('checked')) {
1167                     params['linkexternal'] = 'yes';
1168                 } else if ((return_types & 4/*FILE_REFERENCE*/) &&
1169                         (this.options.return_types & 4/*FILE_REFERENCE*/) &&
1170                         selectnode.one('.fp-linktype-4 input').get('checked')) {
1171                     params['usefilereference'] = '1';
1172                 }
1173
1174                 selectnode.addClass('loading');
1175                 this.request({
1176                     action:'download',
1177                     client_id: client_id,
1178                     repository_id: repository_id,
1179                     'params': params,
1180                     onerror: function(id, obj, args) {
1181                         selectnode.removeClass('loading');
1182                         scope.selectui.hide();
1183                     },
1184                     callback: function(id, obj, args) {
1185                         selectnode.removeClass('loading');
1186                         if (obj.event == 'fileexists') {
1187                             scope.process_existing_file(obj);
1188                             return;
1189                         }
1190                         if (scope.options.editor_target && scope.options.env=='editor') {
1191                             scope.options.editor_target.value=obj.url;
1192                             scope.options.editor_target.onchange();
1193                         }
1194                         scope.hide();
1195                         obj.client_id = client_id;
1196                         var formcallback_scope = args.scope.options.magicscope ? args.scope.options.magicscope : args.scope;
1197                         scope.options.formcallback.apply(formcallback_scope, [obj]);
1198                     }
1199                 }, false);
1200             }, this);
1201             var elform = selectnode.one('form');
1202             elform.appendChild(Y.Node.create('<input/>').
1203                 setAttrs({type:'hidden',id:'filesource-'+client_id}));
1204             elform.on('keydown', function(e) {
1205                 if (e.keyCode == 13) {
1206                     getfile.simulate('click');
1207                     e.preventDefault();
1208                 }
1209             }, this);
1210             var cancel = selectnode.one('.fp-select-cancel');
1211             cancel.on('click', function(e) {
1212                 e.preventDefault();
1213                 this.selectui.hide();
1214             }, this);
1215         },
1216         wait: function() {
1217             // First check there isn't already an interval in play, and if there is kill it now.
1218             if (this.waitinterval != null) {
1219                 clearInterval(this.waitinterval);
1220             }
1221             // Prepare the root node we will set content for and the loading template we want to display as a YUI node.
1222             var root = this.fpnode.one('.fp-content');
1223             var content = Y.Node.create(M.core_filepicker.templates.loading).addClass('fp-content-hidden').setStyle('opacity', 0);
1224             var count = 0;
1225             // Initiate an interval, we will have a count which will increment every 100 milliseconds.
1226             // Count 0 - the loading icon will have visibility set to hidden (invisible) and have an opacity of 0 (invisible also)
1227             // Count 5 - the visiblity will be switched to visible but opacity will still be at 0 (inivisible)
1228             // Counts 6 - 15 opacity will be increased by 0.1 making the loading icon visible over the period of a second
1229             // Count 16 - The interval will be cancelled.
1230             var interval = setInterval(function(){
1231                 if (!content || !root.contains(content) || count >= 15) {
1232                     clearInterval(interval);
1233                     return true;
1234                 }
1235                 if (count == 5) {
1236                     content.removeClass('fp-content-hidden');
1237                 } else if (count > 5) {
1238                     var opacity = parseFloat(content.getStyle('opacity'));
1239                     content.setStyle('opacity', opacity + 0.1);
1240                 }
1241                 count++;
1242                 return false;
1243             }, 100);
1244             // Store the wait interval so that we can check it in the future.
1245             this.waitinterval = interval;
1246             // Set the content to the loading template.
1247             root.setContent(content);
1248         },
1249         viewbar_set_enabled: function(mode) {
1250             var viewbar = this.fpnode.one('.fp-viewbar')
1251             if (viewbar) {
1252                 if (mode) {
1253                     viewbar.addClass('enabled').removeClass('disabled')
1254                 } else {
1255                     viewbar.removeClass('enabled').addClass('disabled')
1256                 }
1257             }
1258             this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').removeClass('checked')
1259             var modes = {1:'icons', 2:'tree', 3:'details'};
1260             this.fpnode.all('.fp-vb-'+modes[this.viewmode]).addClass('checked');
1261         },
1262         viewbar_clicked: function(e) {
1263             e.preventDefault();
1264             var viewbar = this.fpnode.one('.fp-viewbar')
1265             if (!viewbar || !viewbar.hasClass('disabled')) {
1266                 if (e.currentTarget.hasClass('fp-vb-tree')) {
1267                     this.viewmode = 2;
1268                 } else if (e.currentTarget.hasClass('fp-vb-details')) {
1269                     this.viewmode = 3;
1270                 } else {
1271                     this.viewmode = 1;
1272                 }
1273                 this.viewbar_set_enabled(true)
1274                 this.view_files();
1275                 this.set_preference('recentviewmode', this.viewmode);
1276             }
1277         },
1278         render: function() {
1279             var client_id = this.options.client_id;
1280             this.fpnode = Y.Node.createWithFilesSkin(M.core_filepicker.templates.generallayout).
1281                 set('id', 'filepicker-'+client_id);
1282             this.mainui = new Y.Panel({
1283                 srcNode      : this.fpnode,
1284                 headerContent: M.str.repository.filepicker,
1285                 zIndex       : 5000,
1286                 centered     : true,
1287                 modal        : true,
1288                 visible      : false,
1289                 minWidth     : this.fpnode.getStylePx('minWidth'),
1290                 minHeight    : this.fpnode.getStylePx('minHeight'),
1291                 maxWidth     : this.fpnode.getStylePx('maxWidth'),
1292                 maxHeight    : this.fpnode.getStylePx('maxHeight'),
1293                 render       : true
1294             });
1295             // allow to move the panel dragging it by it's header:
1296             this.mainui.plug(Y.Plugin.Drag,{handles:['#filepicker-'+client_id+' .yui3-widget-hd']});
1297             this.mainui.show();
1298             if (this.mainui.get('y') < 0) {
1299                 this.mainui.set('y', 0);
1300             }
1301             // create panel for selecting a file (initially hidden)
1302             this.selectnode = Y.Node.createWithFilesSkin(M.core_filepicker.templates.selectlayout).
1303                 set('id', 'filepicker-select-'+client_id);
1304             this.selectui = new Y.Panel({
1305                 srcNode      : this.selectnode,
1306                 zIndex       : 6000,
1307                 centered     : true,
1308                 modal        : true,
1309                 close        : true,
1310                 render       : true
1311             });
1312             // allow to move the panel dragging it by it's header:
1313             this.selectui.plug(Y.Plugin.Drag,{handles:['#filepicker-select-'+client_id+' .yui3-widget-hd']});
1314             this.selectui.hide();
1315             // event handler for lazy loading of thumbnails and next page
1316             this.fpnode.one('.fp-content').on(['scroll','resize'], this.content_scrolled, this);
1317             // save template for one path element and location of path bar
1318             if (this.fpnode.one('.fp-path-folder')) {
1319                 this.pathnode = this.fpnode.one('.fp-path-folder');
1320                 this.pathbar = this.pathnode.get('parentNode');
1321                 this.pathbar.removeChild(this.pathnode);
1322             }
1323             // assign callbacks for view mode switch buttons
1324             this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').
1325                 on('click', this.viewbar_clicked, this);
1326             // assign callbacks for toolbar links
1327             this.setup_toolbar();
1328             this.setup_select_file();
1329             this.hide_header();
1330
1331             // processing repository listing
1332             // Resort the repositories by sortorder
1333             var sorted_repositories = [];
1334             for (var i in this.options.repositories) {
1335                 sorted_repositories[i] = this.options.repositories[i];
1336             }
1337             sorted_repositories.sort(function(a,b){return a.sortorder-b.sortorder});
1338             // extract one repository template and repeat it for all repositories available,
1339             // set name and icon and assign callbacks
1340             var reponode = this.fpnode.one('.fp-repo');
1341             if (reponode) {
1342                 var list = reponode.get('parentNode');
1343                 list.removeChild(reponode);
1344                 for (i in sorted_repositories) {
1345                     var repository = sorted_repositories[i];
1346                     var node = reponode.cloneNode(true);
1347                     list.appendChild(node);
1348                     node.
1349                         set('id', 'fp-repo-'+client_id+'-'+repository.id).
1350                         on('click', function(e, repository_id) {
1351                             e.preventDefault();
1352                             this.set_preference('recentrepository', repository_id);
1353                             this.hide_header();
1354                             this.list({'repo_id':repository_id});
1355                         }, this /*handler running scope*/, repository.id/*second argument of handler*/);
1356                     node.one('.fp-repo-name').setContent(repository.name);
1357                     node.one('.fp-repo-icon').set('src', repository.icon);
1358                     if (i==0) {
1359                         node.addClass('first');
1360                     }
1361                     if (i==sorted_repositories.length-1) {
1362                         node.addClass('last');
1363                     }
1364                     if (i%2) {
1365                         node.addClass('even');
1366                     } else {
1367                         node.addClass('odd');
1368                     }
1369                 }
1370             }
1371             // display error if no repositories found
1372             if (sorted_repositories.length==0) {
1373                 this.display_error(M.str.repository.norepositoriesavailable, 'norepositoriesavailable')
1374             }
1375             // display repository that was used last time
1376             this.show_recent_repository();
1377         },
1378         parse_repository_options: function(data, appendtolist) {
1379             if (appendtolist) {
1380                 if (data.list) {
1381                     if (!this.filelist) {
1382                         this.filelist = [];
1383                     }
1384                     for (var i in data.list) {
1385                         this.filelist[this.filelist.length] = data.list[i];
1386                     }
1387                 }
1388             } else {
1389                 this.filelist = data.list?data.list:null;
1390                 this.lazyloading = {};
1391             }
1392             this.filepath = data.path?data.path:null;
1393             this.objecttag = data.object?data.object:null;
1394             this.active_repo = {};
1395             this.active_repo.issearchresult = data.issearchresult ? true : false;
1396             this.active_repo.dynload = data.dynload?data.dynload:false;
1397             this.active_repo.pages = Number(data.pages?data.pages:null);
1398             this.active_repo.page = Number(data.page?data.page:null);
1399             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))
1400             this.active_repo.id = data.repo_id?data.repo_id:null;
1401             this.active_repo.nosearch = (data.login || data.nosearch); // this is either login form or 'nosearch' attribute set
1402             this.active_repo.norefresh = (data.login || data.norefresh); // this is either login form or 'norefresh' attribute set
1403             this.active_repo.nologin = (data.login || data.nologin); // this is either login form or 'nologin' attribute is set
1404             this.active_repo.logouttext = data.logouttext?data.logouttext:null;
1405             this.active_repo.logouturl = (data.logouturl || '');
1406             this.active_repo.message = (data.message || '');
1407             this.active_repo.help = data.help?data.help:null;
1408             this.active_repo.manage = data.manage?data.manage:null;
1409             this.print_header();
1410         },
1411         print_login: function(data) {
1412             this.parse_repository_options(data);
1413             var client_id = this.options.client_id;
1414             var repository_id = data.repo_id;
1415             var l = this.logindata = data.login;
1416             var loginurl = '';
1417             var action = data['login_btn_action'] ? data['login_btn_action'] : 'login';
1418             var form_id = 'fp-form-'+client_id;
1419
1420             var loginform_node = Y.Node.create(M.core_filepicker.templates.loginform);
1421             loginform_node.one('form').set('id', form_id);
1422             this.fpnode.one('.fp-content').setContent('').appendChild(loginform_node);
1423             var templates = {
1424                 'popup' : loginform_node.one('.fp-login-popup'),
1425                 'textarea' : loginform_node.one('.fp-login-textarea'),
1426                 'select' : loginform_node.one('.fp-login-select'),
1427                 'text' : loginform_node.one('.fp-login-text'),
1428                 'radio' : loginform_node.one('.fp-login-radiogroup'),
1429                 'checkbox' : loginform_node.one('.fp-login-checkbox'),
1430                 'input' : loginform_node.one('.fp-login-input')
1431             };
1432             var container;
1433             for (var i in templates) {
1434                 if (templates[i]) {
1435                     container = templates[i].get('parentNode');
1436                     container.removeChild(templates[i]);
1437                 }
1438             }
1439
1440             for(var k in l) {
1441                 if (templates[l[k].type]) {
1442                     var node = templates[l[k].type].cloneNode(true);
1443                 } else {
1444                     node = templates['input'].cloneNode(true);
1445                 }
1446                 if (l[k].type == 'popup') {
1447                     // submit button
1448                     loginurl = l[k].url;
1449                     var popupbutton = node.one('button');
1450                     popupbutton.on('click', function(e){
1451                         M.core_filepicker.active_filepicker = this;
1452                         window.open(loginurl, 'repo_auth', 'location=0,status=0,width=500,height=300,scrollbars=yes');
1453                         e.preventDefault();
1454                     }, this);
1455                     loginform_node.one('form').on('keydown', function(e) {
1456                         if (e.keyCode == 13) {
1457                             popupbutton.simulate('click');
1458                             e.preventDefault();
1459                         }
1460                     }, this);
1461                     loginform_node.all('.fp-login-submit').remove();
1462                     action = 'popup';
1463                 } else if(l[k].type=='textarea') {
1464                     // textarea element
1465                     if (node.one('label')) {
1466                         node.one('label').set('for', l[k].id).setContent(l[k].label);
1467                     }
1468                     node.one('textarea').setAttrs({id:l[k].id, name:l[k].name});
1469                 } else if(l[k].type=='select') {
1470                     // select element
1471                     if (node.one('label')) {
1472                         node.one('label').set('for', l[k].id).setContent(l[k].label);
1473                     }
1474                     node.one('select').setAttrs({id:l[k].id, name:l[k].name}).setContent('');
1475                     for (i in l[k].options) {
1476                         node.one('select').appendChild(
1477                             Y.Node.create('<option/>').
1478                                 set('value', l[k].options[i].value).
1479                                 setContent(l[k].options[i].label));
1480                     }
1481                 } else if(l[k].type=='radio') {
1482                     // radio input element
1483                     node.all('label').setContent(l[k].label);
1484                     var list = l[k].value.split('|');
1485                     var labels = l[k].value_label.split('|');
1486                     var radionode = null;
1487                     for(var item in list) {
1488                         if (radionode == null) {
1489                             radionode = node.one('.fp-login-radio');
1490                             radionode.one('input').set('checked', 'checked');
1491                         } else {
1492                             var x = radionode.cloneNode(true);
1493                             radionode.insert(x, 'after');
1494                             radionode = x;
1495                             radionode.one('input').set('checked', '');
1496                         }
1497                         radionode.one('input').setAttrs({id:''+l[k].id+item, name:l[k].name,
1498                             type:l[k].type, value:list[item]});
1499                         radionode.all('label').setContent(labels[item]).set('for', ''+l[k].id+item)
1500                     }
1501                     if (radionode == null) {
1502                         node.one('.fp-login-radio').remove();
1503                     }
1504                 } else {
1505                     // input element
1506                     if (node.one('label')) { node.one('label').set('for', l[k].id).setContent(l[k].label) }
1507                     node.one('input').
1508                         set('type', l[k].type).
1509                         set('id', l[k].id).
1510                         set('name', l[k].name).
1511                         set('value', l[k].value?l[k].value:'')
1512                 }
1513                 container.appendChild(node);
1514             }
1515             // custom label text for submit button
1516             if (data['login_btn_label']) {
1517                 loginform_node.all('.fp-login-submit').setContent(data['login_btn_label'])
1518             }
1519             // register button action for login and search
1520             if (action == 'login' || action == 'search') {
1521                 loginform_node.one('.fp-login-submit').on('click', function(e){
1522                     e.preventDefault();
1523                     this.hide_header();
1524                     this.request({
1525                         'scope': this,
1526                         'action':(action == 'search') ? 'search' : 'signin',
1527                         'path': '',
1528                         'client_id': client_id,
1529                         'repository_id': repository_id,
1530                         'form': {id:form_id, upload:false, useDisabled:true},
1531                         'callback': this.display_response
1532                     }, true);
1533                 }, this);
1534             }
1535             // if 'Enter' is pressed in the form, simulate the button click
1536             if (loginform_node.one('.fp-login-submit')) {
1537                 loginform_node.one('form').on('keydown', function(e) {
1538                     if (e.keyCode == 13) {
1539                         loginform_node.one('.fp-login-submit').simulate('click')
1540                         e.preventDefault();
1541                     }
1542                 }, this);
1543             }
1544         },
1545         display_response: function(id, obj, args) {
1546             var scope = args.scope
1547             // highlight the current repository in repositories list
1548             scope.fpnode.all('.fp-repo.active').removeClass('active');
1549             scope.fpnode.all('#fp-repo-'+scope.options.client_id+'-'+obj.repo_id).addClass('active')
1550             // add class repository_REPTYPE to the filepicker (for repository-specific styles)
1551             for (var i in scope.options.repositories) {
1552                 scope.fpnode.removeClass('repository_'+scope.options.repositories[i].type)
1553             }
1554             if (obj.repo_id && scope.options.repositories[obj.repo_id]) {
1555                 scope.fpnode.addClass('repository_'+scope.options.repositories[obj.repo_id].type)
1556             }
1557             // display response
1558             if (obj.login) {
1559                 scope.viewbar_set_enabled(false);
1560                 scope.print_login(obj);
1561             } else if (obj.upload) {
1562                 scope.viewbar_set_enabled(false);
1563                 scope.parse_repository_options(obj);
1564                 scope.create_upload_form(obj);
1565             } else if (obj.object) {
1566                 M.core_filepicker.active_filepicker = scope;
1567                 scope.viewbar_set_enabled(false);
1568                 scope.parse_repository_options(obj);
1569                 scope.create_object_container(obj.object);
1570             } else if (obj.list) {
1571                 scope.viewbar_set_enabled(true);
1572                 scope.parse_repository_options(obj);
1573                 scope.view_files();
1574             }
1575         },
1576         list: function(args) {
1577             if (!args) {
1578                 args = {};
1579             }
1580             if (!args.repo_id) {
1581                 args.repo_id = this.active_repo.id;
1582             }
1583             if (!args.path) {
1584                 args.path = '';
1585             }
1586             this.currentpath = args.path;
1587             this.request({
1588                 action: 'list',
1589                 client_id: this.options.client_id,
1590                 repository_id: args.repo_id,
1591                 path: args.path,
1592                 page: args.page,
1593                 scope: this,
1594                 callback: this.display_response
1595             }, true);
1596         },
1597         populate_licenses_select: function(node) {
1598             if (!node) {
1599                 return;
1600             }
1601             node.setContent('');
1602             var licenses = this.options.licenses;
1603             var recentlicense = this.get_preference('recentlicense');
1604             if (recentlicense) {
1605                 this.options.defaultlicense=recentlicense;
1606             }
1607             for (var i in licenses) {
1608                 var option = Y.Node.create('<option/>').
1609                     set('selected', (this.options.defaultlicense==licenses[i].shortname)).
1610                     set('value', licenses[i].shortname).
1611                     setContent(licenses[i].fullname);
1612                 node.appendChild(option)
1613             }
1614         },
1615         set_selected_license: function(node, value) {
1616             var licenseset = false;
1617             node.all('option').each(function(el) {
1618                 if (el.get('value')==value || el.getContent()==value) {
1619                     el.set('selected', true);
1620                     licenseset = true;
1621                 }
1622             });
1623             if (!licenseset) {
1624                 // we did not find the value in the list
1625                 var recentlicense = this.get_preference('recentlicense');
1626                 node.all('option[selected]').set('selected', false);
1627                 node.all('option[value='+recentlicense+']').set('selected', true);
1628             }
1629         },
1630         create_object_container: function(data) {
1631             var content = this.fpnode.one('.fp-content');
1632             content.setContent('');
1633             //var str = '<object data="'+data.src+'" type="'+data.type+'" width="98%" height="98%" id="container_object" class="fp-object-container mdl-align"></object>';
1634             var container = Y.Node.create('<object/>').
1635                 setAttrs({data:data.src, type:data.type, id:'container_object'}).
1636                 addClass('fp-object-container');
1637             content.setContent('').appendChild(container);
1638         },
1639         create_upload_form: function(data) {
1640             var client_id = this.options.client_id;
1641             var id = data.upload.id+'_'+client_id;
1642             var content = this.fpnode.one('.fp-content');
1643             var template_name = 'uploadform_'+this.options.repositories[data.repo_id].type;
1644             var template = M.core_filepicker.templates[template_name] || M.core_filepicker.templates['uploadform'];
1645             content.setContent(template);
1646
1647             content.all('.fp-file,.fp-saveas,.fp-setauthor,.fp-setlicense').each(function (node) {
1648                 node.all('label').set('for', node.one('input,select').generateID());
1649             });
1650             content.one('form').set('id', id);
1651             content.one('.fp-file input').set('name', 'repo_upload_file');
1652             if (data.upload.label && content.one('.fp-file label')) {
1653                 content.one('.fp-file label').setContent(data.upload.label);
1654             }
1655             content.one('.fp-saveas input').set('name', 'title');
1656             content.one('.fp-setauthor input').setAttrs({name:'author', value:this.options.author});
1657             content.one('.fp-setlicense select').set('name', 'license');
1658             this.populate_licenses_select(content.one('.fp-setlicense select'))
1659             // append hidden inputs to the upload form
1660             content.one('form').appendChild(Y.Node.create('<input/>').
1661                 setAttrs({type:'hidden',name:'itemid',value:this.options.itemid}));
1662             var types = this.options.accepted_types;
1663             for (var i in types) {
1664                 content.one('form').appendChild(Y.Node.create('<input/>').
1665                     setAttrs({type:'hidden',name:'accepted_types[]',value:types[i]}));
1666             }
1667
1668             var scope = this;
1669             content.one('.fp-upload-btn').on('click', function(e) {
1670                 e.preventDefault();
1671                 var license = content.one('.fp-setlicense select');
1672
1673                 this.set_preference('recentlicense', license.get('value'));
1674                 if (!content.one('.fp-file input').get('value')) {
1675                     scope.print_msg(M.str.repository.nofilesattached, 'error');
1676                     return false;
1677                 }
1678                 this.hide_header();
1679                 scope.request({
1680                         scope: scope,
1681                         action:'upload',
1682                         client_id: client_id,
1683                         params: {'savepath':scope.options.savepath},
1684                         repository_id: scope.active_repo.id,
1685                         form: {id: id, upload:true},
1686                         onerror: function(id, o, args) {
1687                             scope.create_upload_form(data);
1688                         },
1689                         callback: function(id, o, args) {
1690                             if (o.event == 'fileexists') {
1691                                 scope.create_upload_form(data);
1692                                 scope.process_existing_file(o);
1693                                 return;
1694                             }
1695                             if (scope.options.editor_target&&scope.options.env=='editor') {
1696                                 scope.options.editor_target.value=o.url;
1697                                 scope.options.editor_target.onchange();
1698                             }
1699                             scope.hide();
1700                             o.client_id = client_id;
1701                             var formcallback_scope = args.scope.options.magicscope ? args.scope.options.magicscope : args.scope;
1702                             scope.options.formcallback.apply(formcallback_scope, [o]);
1703                         }
1704                 }, true);
1705             }, this);
1706         },
1707         /** setting handlers and labels for elements in toolbar. Called once during the initial render of filepicker */
1708         setup_toolbar: function() {
1709             var client_id = this.options.client_id;
1710             var toolbar = this.fpnode.one('.fp-toolbar');
1711             toolbar.one('.fp-tb-logout').one('a,button').on('click', function(e) {
1712                 e.preventDefault();
1713                 if (!this.active_repo.nologin) {
1714                     this.hide_header();
1715                     this.request({
1716                         action:'logout',
1717                         client_id: this.options.client_id,
1718                         repository_id: this.active_repo.id,
1719                         path:'',
1720                         callback: this.display_response
1721                     }, true);
1722                 }
1723                 if (this.active_repo.logouturl) {
1724                     window.open(this.active_repo.logouturl, 'repo_auth', 'location=0,status=0,width=500,height=300,scrollbars=yes');
1725                 }
1726             }, this);
1727             toolbar.one('.fp-tb-refresh').one('a,button').on('click', function(e) {
1728                 e.preventDefault();
1729                 if (!this.active_repo.norefresh) {
1730                     this.list({ path: this.currentpath });
1731                 }
1732             }, this);
1733             toolbar.one('.fp-tb-search form').
1734                 set('method', 'POST').
1735                 set('id', 'fp-tb-search-'+client_id).
1736                 on('submit', function(e) {
1737                     e.preventDefault();
1738                     if (!this.active_repo.nosearch) {
1739                         this.request({
1740                             scope: this,
1741                             action:'search',
1742                             client_id: this.options.client_id,
1743                             repository_id: this.active_repo.id,
1744                             form: {id: 'fp-tb-search-'+client_id, upload:false, useDisabled:true},
1745                             callback: this.display_response
1746                         }, true);
1747                     }
1748             }, this);
1749
1750             // it does not matter what kind of element is .fp-tb-manage, we create a dummy <a>
1751             // element and use it to open url on click event
1752             var managelnk = Y.Node.create('<a/>').
1753                 setAttrs({id:'fp-tb-manage-'+client_id+'-link', target:'_blank'}).
1754                 setStyle('display', 'none');
1755             toolbar.append(managelnk);
1756             toolbar.one('.fp-tb-manage').one('a,button').
1757                 on('click', function(e) {
1758                     e.preventDefault();
1759                     managelnk.simulate('click')
1760                 });
1761
1762             // same with .fp-tb-help
1763             var helplnk = Y.Node.create('<a/>').
1764                 setAttrs({id:'fp-tb-help-'+client_id+'-link', target:'_blank'}).
1765                 setStyle('display', 'none');
1766             toolbar.append(helplnk);
1767             toolbar.one('.fp-tb-help').one('a,button').
1768                 on('click', function(e) {
1769                     e.preventDefault();
1770                     helplnk.simulate('click')
1771                 });
1772         },
1773         hide_header: function() {
1774             if (this.fpnode.one('.fp-toolbar')) {
1775                 this.fpnode.one('.fp-toolbar').addClass('empty');
1776             }
1777             if (this.pathbar) {
1778                 this.pathbar.setContent('').addClass('empty');
1779             }
1780         },
1781         print_header: function() {
1782             var r = this.active_repo;
1783             var scope = this;
1784             var client_id = this.options.client_id;
1785             this.hide_header();
1786             this.print_path();
1787             var toolbar = this.fpnode.one('.fp-toolbar');
1788             if (!toolbar) { return; }
1789
1790             var enable_tb_control = function(node, enabled) {
1791                 if (!node) { return; }
1792                 node.addClassIf('disabled', !enabled).addClassIf('enabled', enabled)
1793                 if (enabled) {
1794                     toolbar.removeClass('empty');
1795                 }
1796             }
1797
1798             // TODO 'back' permanently disabled for now. Note, flickr_public uses 'Logout' for it!
1799             enable_tb_control(toolbar.one('.fp-tb-back'), false);
1800
1801             // search form
1802             enable_tb_control(toolbar.one('.fp-tb-search'), !r.nosearch);
1803             if(!r.nosearch) {
1804                 var searchform = toolbar.one('.fp-tb-search form');
1805                 searchform.setContent('');
1806                 this.request({
1807                     scope: this,
1808                     action:'searchform',
1809                     repository_id: this.active_repo.id,
1810                     callback: function(id, obj, args) {
1811                         if (obj.repo_id == scope.active_repo.id && obj.form) {
1812                             // if we did not jump to another repository meanwhile
1813                             searchform.setContent(obj.form);
1814                             // Highlight search text when user click for search.
1815                             var searchnode = searchform.one('input[name="s"]');
1816                             if (searchnode) {
1817                                 searchnode.once('click', function(e) {
1818                                     e.preventDefault();
1819                                     this.select();
1820                                 });
1821                             }
1822                         }
1823                     }
1824                 }, false);
1825             }
1826
1827             // refresh button
1828             // weather we use cache for this instance, this button will reload listing anyway
1829             enable_tb_control(toolbar.one('.fp-tb-refresh'), !r.norefresh);
1830
1831             // login button
1832             enable_tb_control(toolbar.one('.fp-tb-logout'), !r.nologin);
1833             if (!r.nologin) {
1834                 var label = r.logouttext ? r.logouttext : M.str.repository.logout;
1835                 toolbar.one('.fp-tb-logout').one('a,button').setContent(label)
1836             }
1837
1838             // manage url
1839             enable_tb_control(toolbar.one('.fp-tb-manage'), r.manage);
1840             Y.one('#fp-tb-manage-'+client_id+'-link').set('href', r.manage);
1841
1842             // help url
1843             enable_tb_control(toolbar.one('.fp-tb-help'), r.help);
1844             Y.one('#fp-tb-help-'+client_id+'-link').set('href', r.help);
1845
1846             // message
1847             enable_tb_control(toolbar.one('.fp-tb-message'), r.message);
1848             toolbar.one('.fp-tb-message').setContent(r.message);
1849         },
1850         print_path: function() {
1851             if (!this.pathbar) {
1852                 return;
1853             }
1854             this.pathbar.setContent('').addClass('empty');
1855             var p = this.filepath;
1856             if (p && p.length!=0 && this.viewmode != 2) {
1857                 for(var i = 0; i < p.length; i++) {
1858                     var el = this.pathnode.cloneNode(true);
1859                     this.pathbar.appendChild(el);
1860                     if (i == 0) {
1861                         el.addClass('first');
1862                     }
1863                     if (i == p.length-1) {
1864                         el.addClass('last');
1865                     }
1866                     if (i%2) {
1867                         el.addClass('even');
1868                     } else {
1869                         el.addClass('odd');
1870                     }
1871                     el.all('.fp-path-folder-name').setContent(p[i].name);
1872                     el.on('click',
1873                             function(e, path) {
1874                                 e.preventDefault();
1875                                 this.list({'path':path});
1876                             },
1877                         this, p[i].path);
1878                 }
1879                 this.pathbar.removeClass('empty');
1880             }
1881         },
1882         hide: function() {
1883             this.selectui.hide();
1884             if (this.process_dlg) {
1885                 this.process_dlg.hide();
1886             }
1887             if (this.msg_dlg) {
1888                 this.msg_dlg.hide();
1889             }
1890             this.mainui.hide();
1891         },
1892         show: function() {
1893             if (this.fpnode) {
1894                 this.hide();
1895                 this.mainui.show();
1896                 this.show_recent_repository();
1897             } else {
1898                 this.launch();
1899             }
1900         },
1901         launch: function() {
1902             this.render();
1903         },
1904         show_recent_repository: function() {
1905             this.hide_header();
1906             this.viewbar_set_enabled(false);
1907             var repository_id = this.get_preference('recentrepository');
1908             this.viewmode = this.get_preference('recentviewmode');
1909             if (this.viewmode != 2 && this.viewmode != 3) {
1910                 this.viewmode = 1;
1911             }
1912             if (this.options.repositories[repository_id]) {
1913                 this.list({'repo_id':repository_id});
1914             }
1915         },
1916         get_preference: function (name) {
1917             if (this.options.userprefs[name]) {
1918                 return this.options.userprefs[name];
1919             } else {
1920                 return false;
1921             }
1922         },
1923         set_preference: function(name, value) {
1924             if (this.options.userprefs[name] != value) {
1925                 M.util.set_user_preference('filepicker_' + name, value);
1926                 this.options.userprefs[name] = value;
1927             }
1928         }
1929     });
1930     var loading = Y.one('#filepicker-loading-'+options.client_id);
1931     if (loading) {
1932         loading.setStyle('display', 'none');
1933     }
1934     M.core_filepicker.instances[options.client_id] = new FilePickerHelper(options);
1935 };