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 displayed 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             var displayname = node.shorttitle ? node.shorttitle : file_get_filename(node);
 182             return Y.Escape.html(displayname);
 183         };
 184         /** return file description (different attributes in FileManager and FilePicker) */
 185         var file_get_description = function(node) {
 186             var description = '';
 187             if (node.description) {
 188                 description = node.description;
 189             } else if (node.thumbnail_title) {
 190                 description = node.thumbnail_title;
 191             } else {
 192                 description = file_get_filename(node);
 193             }
 194             return Y.Escape.html(description);
 195         };
 196         /** help funciton for tree view */
 197         var build_tree = function(node, level) {
 198             // prepare file name with icon
 199             var el = Y.Node.create('<div/>');
 200             el.appendChild(options.filenode.cloneNode(true));
 201
 202             el.one('.fp-filename').setContent(file_get_displayname(node));
 203             // TODO add tooltip with node.title or node.thumbnail_title
 204             var tmpnodedata = {className:options.classnamecallback(node)};
 205             el.get('children').addClass(tmpnodedata.className);
 206             if (node.icon) {
 207                 el.one('.fp-icon').appendChild(Y.Node.create('<img/>'));
 208                 el.one('.fp-icon img').setImgSrc(node.icon, node.realicon, lazyloading);
 209             }
 210             // create node
 211             tmpnodedata.html = el.getContent();
 212             var tmpNode = new Y.YUI2.widget.HTMLNode(tmpnodedata, level, false);
 213             if (node.dynamicLoadComplete) {
 214                 tmpNode.dynamicLoadComplete = true;
 215             }
 216             tmpNode.fileinfo = node;
 217             tmpNode.isLeaf = !file_is_folder(node);
 218             if (!tmpNode.isLeaf) {
 219                 if(node.expanded) {
 220                     tmpNode.expand();
 221                 }
 222                 tmpNode.path = node.path ? node.path : (node.filepath ? node.filepath : '');
 223                 for(var c in node.children) {
 224                     build_tree(node.children[c], tmpNode);
 225                 }
 226             }
 227         };
 228         /** initialize tree view */
 229         var initialize_tree_view = function() {
 230             var parentid = scope.one('.'+classname).get('id');
 231             // TODO MDL-32736 use YUI3 gallery TreeView
 232             scope.treeview = new Y.YUI2.widget.TreeView(parentid);
 233             if (options.dynload) {
 234                 scope.treeview.setDynamicLoad(Y.bind(options.treeview_dynload, options.callbackcontext), 1);
 235             }
 236             scope.treeview.singleNodeHighlight = true;
 237             if (options.filepath && options.filepath.length) {
 238                 // we just jumped from icon/details view, we need to show all parents
 239                 // we extract as much information as possible from filepath and filelist
 240                 // and send additional requests to retrieve siblings for parent folders
 241                 var mytree = {};
 242                 var mytreeel = null;
 243                 for (var i in options.filepath) {
 244                     if (mytreeel == null) {
 245                         mytreeel = mytree;
 246                     } else {
 247                         mytreeel.children = [{}];
 248                         mytreeel = mytreeel.children[0];
 249                     }
 250                     var pathelement = options.filepath[i];
 251                     mytreeel.path = pathelement.path;
 252                     mytreeel.title = pathelement.name;
 253                     mytreeel.icon = pathelement.icon;
 254                     mytreeel.dynamicLoadComplete = true; // we will call it manually
 255                     mytreeel.expanded = true;
 256                 }
 257                 mytreeel.children = fileslist;
 258                 build_tree(mytree, scope.treeview.getRoot());
 259                 // manually call dynload for parent elements in the tree so we can load other siblings
 260                 if (options.dynload) {
 261                     var root = scope.treeview.getRoot();
 262                     while (root && root.children && root.children.length) {
 263                         root = root.children[0];
 264                         if (root.path == mytreeel.path) {
 265                             root.origpath = options.filepath;
 266                             root.origlist = fileslist;
 267                         } else if (!root.isLeaf && root.expanded) {
 268                             Y.bind(options.treeview_dynload, options.callbackcontext)(root, null);
 269                         }
 270                     }
 271                 }
 272             } else {
 273                 // there is no path information, just display all elements as a list, without hierarchy
 274                 for(k in fileslist) {
 275                     build_tree(fileslist[k], scope.treeview.getRoot());
 276                 }
 277             }
 278             scope.treeview.subscribe('clickEvent', function(e){
 279                 e.node.highlight(false);
 280                 var callback = options.callback;
 281                 if (options.rightclickcallback && e.event.target &&
 282                         Y.Node(e.event.target).ancestor('.fp-treeview .fp-contextmenu', true)) {
 283                     callback = options.rightclickcallback;
 284                 }
 285                 Y.bind(callback, options.callbackcontext)(e, e.node.fileinfo);
 286                 Y.YUI2.util.Event.stopEvent(e.event)
 287             });
 288             // TODO MDL-32736 support right click
 289             /*if (options.rightclickcallback) {
 290                 scope.treeview.subscribe('dblClickEvent', function(e){
 291                     e.node.highlight(false);
 292                     Y.bind(options.rightclickcallback, options.callbackcontext)(e, e.node.fileinfo);
 293                 });
 294             }*/
 295             scope.treeview.draw();
 296         };
 297         /** formatting function for table view */
 298         var formatValue = function (o){
 299             if (o.data[''+o.column.key+'_f_s']) {return o.data[''+o.column.key+'_f_s'];}
 300             else if (o.data[''+o.column.key+'_f']) {return o.data[''+o.column.key+'_f'];}
 301             else if (o.value) {return o.value;}
 302             else {return '';}
 303         };
 304         /** formatting function for table view */
 305         var formatTitle = function(o) {
 306             var el = Y.Node.create('<div/>');
 307             el.appendChild(options.filenode.cloneNode(true)); // TODO not node but string!
 308             el.get('children').addClass(o.data['classname']);
 309             el.one('.fp-filename').setContent(o.value);
 310             if (o.data['icon']) {
 311                 el.one('.fp-icon').appendChild(Y.Node.create('<img/>'));
 312                 el.one('.fp-icon img').setImgSrc(o.data['icon'], o.data['realicon'], lazyloading);
 313             }
 314             if (options.rightclickcallback) {
 315                 el.get('children').addClass('fp-hascontextmenu');
 316             }
 317             // TODO add tooltip with o.data['title'] (o.value) or o.data['thumbnail_title']
 318             return el.getContent();
 319         }
 320         /** sorting function for table view */
 321         var sortFoldersFirst = function(a, b, desc) {
 322             if (a.get('isfolder') && !b.get('isfolder')) {
 323                 return -1;
 324             }
 325             if (!a.get('isfolder') && b.get('isfolder')) {
 326                 return 1;
 327             }
 328             var aa = a.get(this.key), bb = b.get(this.key), dir = desc ? -1 : 1;
 329             return (aa > bb) ? dir : ((aa < bb) ? -dir : 0);
 330         }
 331         /** initialize table view */
 332         var initialize_table_view = function() {
 333             var cols = [
 334                 {key: "displayname", label: M.util.get_string('name', 'moodle'), allowHTML: true, formatter: formatTitle,
 335                     sortable: true, sortFn: sortFoldersFirst},
 336                 {key: "datemodified", label: M.util.get_string('lastmodified', 'moodle'), allowHTML: true, formatter: formatValue,
 337                     sortable: true, sortFn: sortFoldersFirst},
 338                 {key: "size", label: M.util.get_string('size', 'repository'), allowHTML: true, formatter: formatValue,
 339                     sortable: true, sortFn: sortFoldersFirst},
 340                 {key: "mimetype", label: M.util.get_string('type', 'repository'), allowHTML: true,
 341                     sortable: true, sortFn: sortFoldersFirst}
 342             ];
 343             scope.tableview = new Y.DataTable({columns: cols, data: fileslist});
 344             scope.tableview.delegate('click', function (e, tableview) {
 345                 var record = tableview.getRecord(e.currentTarget.get('id'));
 346                 if (record) {
 347                     var callback = options.callback;
 348                     if (options.rightclickcallback && e.target.ancestor('.fp-tableview .fp-contextmenu', true)) {
 349                         callback = options.rightclickcallback;
 350                     }
 351                     Y.bind(callback, this)(e, record.getAttrs());
 352                 }
 353             }, 'tr', options.callbackcontext, scope.tableview);
 354             if (options.rightclickcallback) {
 355                 scope.tableview.delegate('contextmenu', function (e, tableview) {
 356                     var record = tableview.getRecord(e.currentTarget.get('id'));
 357                     if (record) { Y.bind(options.rightclickcallback, this)(e, record.getAttrs()); }
 358                 }, 'tr', options.callbackcontext, scope.tableview);
 359             }
 360         }
 361         /** append items in table view mode */
 362         var append_files_table = function() {
 363             if (options.appendonly) {
 364                 fileslist.forEach(function(el) {
 365                     this.tableview.data.add(el);
 366                 },scope);
 367             }
 368             scope.tableview.render(scope.one('.'+classname));
 369             scope.tableview.sortable = options.sortable ? true : false;
 370         };
 371         /** append items in tree view mode */
 372         var append_files_tree = function() {
 373             if (options.appendonly) {
 374                 var parentnode = scope.treeview.getRoot();
 375                 if (scope.treeview.getHighlightedNode()) {
 376                     parentnode = scope.treeview.getHighlightedNode();
 377                     if (parentnode.isLeaf) {parentnode = parentnode.parent;}
 378                 }
 379                 for (var k in fileslist) {
 380                     build_tree(fileslist[k], parentnode);
 381                 }
 382                 scope.treeview.draw();
 383             } else {
 384                 // otherwise files were already added in initialize_tree_view()
 385             }
 386         }
 387         /** append items in icon view mode */
 388         var append_files_icons = function() {
 389             parent = scope.one('.'+classname);
 390             for (var k in fileslist) {
 391                 var node = fileslist[k];
 392                 var element = options.filenode.cloneNode(true);
 393                 parent.appendChild(element);
 394                 element.addClass(options.classnamecallback(node));
 395                 var filenamediv = element.one('.fp-filename');
 396                 filenamediv.setContent(file_get_displayname(node));
 397                 var imgdiv = element.one('.fp-thumbnail'), width, height, src;
 398                 if (node.thumbnail) {
 399                     width = node.thumbnail_width ? node.thumbnail_width : 90;
 400                     height = node.thumbnail_height ? node.thumbnail_height : 90;
 401                     src = node.thumbnail;
 402                 } else {
 403                     width = 16;
 404                     height = 16;
 405                     src = node.icon;
 406                 }
 407                 filenamediv.setStyleAdv('width', width);
 408                 imgdiv.setStyleAdv('width', width).setStyleAdv('height', height);
 409                 var img = Y.Node.create('<img/>').setAttrs({
 410                         title: file_get_description(node),
 411                         alt: Y.Escape.html(node.thumbnail_alt ? node.thumbnail_alt : file_get_filename(node))}).
 412                     setStyle('maxWidth', ''+width+'px').
 413                     setStyle('maxHeight', ''+height+'px');
 414                 img.setImgSrc(src, node.realthumbnail, lazyloading);
 415                 imgdiv.appendChild(img);
 416                 element.on('click', function(e, nd) {
 417                     if (options.rightclickcallback && e.target.ancestor('.fp-iconview .fp-contextmenu', true)) {
 418                         Y.bind(options.rightclickcallback, this)(e, nd);
 419                     } else {
 420                         Y.bind(options.callback, this)(e, nd);
 421                     }
 422                 }, options.callbackcontext, node);
 423                 if (options.rightclickcallback) {
 424                     element.on('contextmenu', options.rightclickcallback, options.callbackcontext, node);
 425                 }
 426             }
 427         }
 428
 429         // If table view, need some additional properties
 430         // before passing fileslist to the YUI tableview
 431         if (options.viewmode == 3) {
 432             fileslist.forEach(function(el) {
 433                 el.displayname = file_get_displayname(el);
 434                 el.isfolder = file_is_folder(el);
 435                 el.classname = options.classnamecallback(el);
 436             }, scope);
 437         }
 438
 439         // initialize files view
 440         if (!options.appendonly) {
 441             var parent = Y.Node.create('<div/>').addClass(classname);
 442             this.setContent('').appendChild(parent);
 443             parent.generateID();
 444             if (options.viewmode == 2) {
 445                 initialize_tree_view();
 446             } else if (options.viewmode == 3) {
 447                 initialize_table_view();
 448             } else {
 449                 // nothing to initialize for icon view
 450             }
 451         }
 452
 453         // append files to the list
 454         if (options.viewmode == 2) {
 455             append_files_tree();
 456         } else if (options.viewmode == 3) {
 457             append_files_table();
 458         } else {
 459             append_files_icons();
 460         }
 461
 462     }
 463
 464     /**
 465      * creates a node and adds it to the div with id #filesskin. This is needed for CSS to be able
 466      * to overwrite YUI skin styles (instead of using !important that does not work in IE)
 467      */
 468     Y.Node.createWithFilesSkin = function(node) {
 469         if (!Y.one('#filesskin')) {
 470             Y.one(document.body).appendChild(Y.Node.create('<div/>').set('id', 'filesskin'));
 471         }
 472         return Y.one('#filesskin').appendChild(Y.Node.create(node));
 473     }
 474 }, '@VERSION@', {
 475     requires:['base', 'node', 'yui2-treeview', 'panel', 'cookie', 'datatable', 'datatable-sort']
 476 });
 477
 478 M.core_filepicker = M.core_filepicker || {};
 479
 480 /**
 481  * instances of file pickers used on page
 482  */
 483 M.core_filepicker.instances = M.core_filepicker.instances || {};
 484 M.core_filepicker.active_filepicker = null;
 485
 486 /**
 487  * HTML Templates to use in FilePicker
 488  */
 489 M.core_filepicker.templates = M.core_filepicker.templates || {};
 490
 491 /**
 492  * Array of image sources for real previews (realicon or realthumbnail) that are already loaded
 493  */
 494 M.core_filepicker.loadedpreviews = M.core_filepicker.loadedpreviews || {};
 495
 496 /**
 497 * Set selected file info
 498 *
 499 * @param object file info
 500 */
 501 M.core_filepicker.select_file = function(file) {
 502     M.core_filepicker.active_filepicker.select_file(file);
 503 }
 504
 505 /**
 506  * Init and show file picker
 507  */
 508 M.core_filepicker.show = function(Y, options) {
 509     if (!M.core_filepicker.instances[options.client_id]) {
 510         M.core_filepicker.init(Y, options);
 511     }
 512     M.core_filepicker.instances[options.client_id].show();
 513 };
 514
 515 M.core_filepicker.set_templates = function(Y, templates) {
 516     for (var templid in templates) {
 517         M.core_filepicker.templates[templid] = templates[templid];
 518     }
 519 }
 520
 521 /**
 522  * Add new file picker to current instances
 523  */
 524 M.core_filepicker.init = function(Y, options) {
 525     var FilePickerHelper = function(options) {
 526         FilePickerHelper.superclass.constructor.apply(this, arguments);
 527     };
 528
 529     FilePickerHelper.NAME = "FilePickerHelper";
 530     FilePickerHelper.ATTRS = {
 531         options: {},
 532         lang: {}
 533     };
 534
 535     Y.extend(FilePickerHelper, Y.Base, {
 536         api: M.cfg.wwwroot+'/repository/repository_ajax.php',
 537         cached_responses: {},
 538         waitinterval : null, // When the loading template is being displayed and its animation is running this will be an interval instance.
 539         initializer: function(options) {
 540             this.options = options;
 541             if (!this.options.savepath) {
 542                 this.options.savepath = '/';
 543             }
 544         },
 545
 546         destructor: function() {
 547         },
 548
 549         request: function(args, redraw) {
 550             var api = (args.api ? args.api : this.api) + '?action='+args.action;
 551             var params = {};
 552             var scope = args['scope'] ? args['scope'] : this;
 553             params['repo_id']=args.repository_id;
 554             params['p'] = args.path?args.path:'';
 555             params['page'] = args.page?args.page:'';
 556             params['env']=this.options.env;
 557             // the form element only accept certain file types
 558             params['accepted_types']=this.options.accepted_types;
 559             params['sesskey'] = M.cfg.sesskey;
 560             params['client_id'] = args.client_id;
 561             params['itemid'] = this.options.itemid?this.options.itemid:0;
 562             params['maxbytes'] = this.options.maxbytes?this.options.maxbytes:-1;
 563             // The unlimited value of areamaxbytes is -1, it is defined by FILE_AREA_MAX_BYTES_UNLIMITED.
 564             params['areamaxbytes'] = this.options.areamaxbytes ? this.options.areamaxbytes : -1;
 565             if (this.options.context && this.options.context.id) {
 566                 params['ctx_id'] = this.options.context.id;
 567             }
 568             if (args['params']) {
 569                 for (i in args['params']) {
 570                     params[i] = args['params'][i];
 571                 }
 572             }
 573             if (args.action == 'upload') {
 574                 var list = [];
 575                 for(var k in params) {
 576                     var value = params[k];
 577                     if(value instanceof Array) {
 578                         for(var i in value) {
 579                             list.push(k+'[]='+value[i]);
 580                         }
 581                     } else {
 582                         list.push(k+'='+value);
 583                     }
 584                 }
 585                 params = list.join('&');
 586             } else {
 587                 params = build_querystring(params);
 588             }
 589             var cfg = {
 590                 method: 'POST',
 591                 on: {
 592                     complete: function(id,o,p) {
 593                         var data = null;
 594                         try {
 595                             data = Y.JSON.parse(o.responseText);
 596                         } catch(e) {
 597                             if (o && o.status && o.status > 0) {
 598                                 Y.use('moodle-core-notification-exception', function() {
 599                                     return new M.core.exception(e);
 600                                 });
 601                                 return;
 602                             }
 603                         }
 604                         // error checking
 605                         if (data && data.error) {
 606                             Y.use('moodle-core-notification-ajaxexception', function () {
 607                                 return new M.core.ajaxException(data);
 608                             });
 609                             this.fpnode.one('.fp-content').setContent('');
 610                             return;
 611                         } else {
 612                             if (data.msg) {
 613                                 scope.print_msg(data.msg, 'info');
 614                             }
 615                             // cache result if applicable
 616                             if (args.action != 'upload' && data.allowcaching) {
 617                                 scope.cached_responses[params] = data;
 618                             }
 619                             // invoke callback
 620                             args.callback(id,data,p);
 621                         }
 622                     }
 623                 },
 624                 arguments: {
 625                     scope: scope
 626                 },
 627                 headers: {
 628                     'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'
 629                 },
 630                 data: params,
 631                 context: this
 632             };
 633             if (args.form) {
 634                 cfg.form = args.form;
 635             }
 636             // check if result of the same request has been already cached. If not, request it
 637             // (never applicable in case of form submission and/or upload action):
 638             if (!args.form && args.action != 'upload' && scope.cached_responses[params]) {
 639                 args.callback(null, scope.cached_responses[params], {scope: scope})
 640             } else {
 641                 Y.io(api, cfg);
 642                 if (redraw) {
 643                     this.wait();
 644                 }
 645             }
 646         },
 647         /** displays the dialog and processes rename/overwrite if there is a file with the same name in the same filearea*/
 648         process_existing_file: function(data) {
 649             var scope = this;
 650             var handleOverwrite = function(e) {
 651                 // overwrite
 652                 e.preventDefault();
 653                 var data = this.process_dlg.dialogdata;
 654                 var params = {}
 655                 params['existingfilename'] = data.existingfile.filename;
 656                 params['existingfilepath'] = data.existingfile.filepath;
 657                 params['newfilename'] = data.newfile.filename;
 658                 params['newfilepath'] = data.newfile.filepath;
 659                 this.hide_header();
 660                 this.request({
 661                     'params': params,
 662                     'scope': this,
 663                     'action':'overwrite',
 664                     'path': '',
 665                     'client_id': this.options.client_id,
 666                     'repository_id': this.active_repo.id,
 667                     'callback': function(id, o, args) {
 668                         scope.hide();
 669                         if (scope.options.editor_target && scope.options.env == 'editor') {
 670                             // editor needs to update url
 671                             scope.options.editor_target.value = data.existingfile.url;
 672                             scope.options.editor_target.onchange();
 673                         }
 674                         var fileinfo = {'client_id':scope.options.client_id,
 675                                 'url':data.existingfile.url,
 676                                 'file':data.existingfile.filename};
 677                         var formcallback_scope = scope.options.magicscope ? scope.options.magicscope : scope;
 678                         scope.options.formcallback.apply(formcallback_scope, [fileinfo]);
 679                     }
 680                 }, true);
 681             }
 682             var handleRename = function(e) {
 683                 // inserts file with the new name
 684                 e.preventDefault();
 685                 var scope = this;
 686                 var data = this.process_dlg.dialogdata;
 687                 if (scope.options.editor_target && scope.options.env == 'editor') {
 688                     scope.options.editor_target.value = data.newfile.url;
 689                     scope.options.editor_target.onchange();
 690                 }
 691                 scope.hide();
 692                 var formcallback_scope = scope.options.magicscope ? scope.options.magicscope : scope;
 693                 var fileinfo = {'client_id':scope.options.client_id,
 694                                 'url':data.newfile.url,
 695                                 'file':data.newfile.filename};
 696                 scope.options.formcallback.apply(formcallback_scope, [fileinfo]);
 697             }
 698             var handleCancel = function(e) {
 699                 // Delete tmp file
 700                 e.preventDefault();
 701                 var params = {};
 702                 params['newfilename'] = this.process_dlg.dialogdata.newfile.filename;
 703                 params['newfilepath'] = this.process_dlg.dialogdata.newfile.filepath;
 704                 this.request({
 705                     'params': params,
 706                     'scope': this,
 707                     'action':'deletetmpfile',
 708                     'path': '',
 709                     'client_id': this.options.client_id,
 710                     'repository_id': this.active_repo.id,
 711                     'callback': function(id, o, args) {
 712                         // let it be in background, from user point of view nothing is happenning
 713                     }
 714                 }, false);
 715                 this.process_dlg.hide();
 716                 this.selectui.hide();
 717             }
 718             if (!this.process_dlg) {
 719                 this.process_dlg_node = Y.Node.createWithFilesSkin(M.core_filepicker.templates.processexistingfile);
 720                 var node = this.process_dlg_node;
 721                 node.generateID();
 722                 this.process_dlg = new M.core.dialogue({
 723                     draggable    : true,
 724                     bodyContent  : node,
 725                     headerContent: M.util.get_string('fileexistsdialogheader', 'repository'),
 726                     centered     : true,
 727                     modal        : true,
 728                     visible      : false,
 729                     zIndex       : this.options.zIndex
 730                 });
 731                 node.one('.fp-dlg-butoverwrite').on('click', handleOverwrite, this);
 732                 node.one('.fp-dlg-butrename').on('click', handleRename, this);
 733                 node.one('.fp-dlg-butcancel').on('click', handleCancel, this);
 734                 if (this.options.env == 'editor') {
 735                     node.one('.fp-dlg-text').setContent(M.util.get_string('fileexistsdialog_editor', 'repository'));
 736                 } else {
 737                     node.one('.fp-dlg-text').setContent(M.util.get_string('fileexistsdialog_filemanager', 'repository'));
 738                 }
 739             }
 740             this.selectnode.removeClass('loading');
 741             this.process_dlg.dialogdata = data;
 742             this.process_dlg_node.one('.fp-dlg-butrename').setContent(M.util.get_string('renameto', 'repository', data.newfile.filename));
 743             this.process_dlg.show();
 744         },
 745         /** displays error instead of filepicker contents */
 746         display_error: function(errortext, errorcode) {
 747             this.fpnode.one('.fp-content').setContent(M.core_filepicker.templates.error);
 748             this.fpnode.one('.fp-content .fp-error').
 749                 addClass(errorcode).
 750                 setContent(Y.Escape.html(errortext));
 751         },
 752         /** displays message in a popup */
 753         print_msg: function(msg, type) {
 754             var header = M.util.get_string('error', 'moodle');
 755             if (type != 'error') {
 756                 type = 'info'; // one of only two types excepted
 757                 header = M.util.get_string('info', 'moodle');
 758             }
 759             if (!this.msg_dlg) {
 760                 this.msg_dlg_node = Y.Node.createWithFilesSkin(M.core_filepicker.templates.message);
 761                 this.msg_dlg_node.generateID();
 762
 763                 this.msg_dlg = new M.core.dialogue({
 764                     draggable    : true,
 765                     bodyContent  : this.msg_dlg_node,
 766                     centered     : true,
 767                     modal        : true,
 768                     visible      : false,
 769                     zIndex       : this.options.zIndex
 770                 });
 771                 this.msg_dlg_node.one('.fp-msg-butok').on('click', function(e) {
 772                     e.preventDefault();
 773                     this.msg_dlg.hide();
 774                 }, this);
 775             }
 776
 777             this.msg_dlg.set('headerContent', header);
 778             this.msg_dlg_node.removeClass('fp-msg-info').removeClass('fp-msg-error').addClass('fp-msg-'+type)
 779             this.msg_dlg_node.one('.fp-msg-text').setContent(Y.Escape.html(msg));
 780             this.msg_dlg.show();
 781         },
 782         view_files: function(appenditems) {
 783             this.viewbar_set_enabled(true);
 784             this.print_path();
 785             /*if ((appenditems == null) && (!this.filelist || !this.filelist.length) && !this.active_repo.hasmorepages) {
 786              // TODO do it via classes and adjust for each view mode!
 787                 // If there are no items and no next page, just display status message and quit
 788                 this.display_error(M.util.get_string('nofilesavailable', 'repository'), 'nofilesavailable');
 789                 return;
 790             }*/
 791             if (this.viewmode == 2) {
 792                 this.view_as_list(appenditems);
 793             } else if (this.viewmode == 3) {
 794                 this.view_as_table(appenditems);
 795             } else {
 796                 this.view_as_icons(appenditems);
 797             }
 798             this.fpnode.one('.fp-content').setAttribute('tabindex', '0');
 799             this.fpnode.one('.fp-content').focus();
 800             // display/hide the link for requesting next page
 801             if (!appenditems && this.active_repo.hasmorepages) {
 802                 if (!this.fpnode.one('.fp-content .fp-nextpage')) {
 803                     this.fpnode.one('.fp-content').append(M.core_filepicker.templates.nextpage);
 804                 }
 805                 this.fpnode.one('.fp-content .fp-nextpage').one('a,button').on('click', function(e) {
 806                     e.preventDefault();
 807                     this.fpnode.one('.fp-content .fp-nextpage').addClass('loading');
 808                     this.request_next_page();
 809                 }, this);
 810             }
 811             if (!this.active_repo.hasmorepages && this.fpnode.one('.fp-content .fp-nextpage')) {
 812                 this.fpnode.one('.fp-content .fp-nextpage').remove();
 813             }
 814             if (this.fpnode.one('.fp-content .fp-nextpage')) {
 815                 this.fpnode.one('.fp-content .fp-nextpage').removeClass('loading');
 816             }
 817             this.content_scrolled();
 818         },
 819         content_scrolled: function(e) {
 820             setTimeout(Y.bind(function() {
 821                 if (this.processingimages) {
 822                     return;
 823                 }
 824                 this.processingimages = true;
 825                 var scope = this,
 826                     fpcontent = this.fpnode.one('.fp-content'),
 827                     fpcontenty = fpcontent.getY(),
 828                     fpcontentheight = fpcontent.getStylePx('height'),
 829                     nextpage = fpcontent.one('.fp-nextpage'),
 830                     is_node_visible = function(node) {
 831                         var offset = node.getY()-fpcontenty;
 832                         if (offset <= fpcontentheight && (offset >=0 || offset+node.getStylePx('height')>=0)) {
 833                             return true;
 834                         }
 835                         return false;
 836                     };
 837                 // automatically load next page when 'more' link becomes visible
 838                 if (nextpage && !nextpage.hasClass('loading') && is_node_visible(nextpage)) {
 839                     nextpage.one('a,button').simulate('click');
 840                 }
 841                 // replace src for visible images that need to be lazy-loaded
 842                 if (scope.lazyloading) {
 843                     fpcontent.all('img').each( function(node) {
 844                         if (node.get('id') && scope.lazyloading[node.get('id')] && is_node_visible(node)) {
 845                             node.setImgRealSrc(scope.lazyloading);
 846                         }
 847                     });
 848                 }
 849                 this.processingimages = false;
 850             }, this), 200)
 851         },
 852         treeview_dynload: function(node, cb) {
 853             var retrieved_children = {};
 854             if (node.children) {
 855                 for (var i in node.children) {
 856                     retrieved_children[node.children[i].path] = node.children[i];
 857                 }
 858             }
 859             this.request({
 860                 action:'list',
 861                 client_id: this.options.client_id,
 862                 repository_id: this.active_repo.id,
 863                 path:node.path?node.path:'',
 864                 page:node.page?args.page:'',
 865                 scope:this,
 866                 callback: function(id, obj, args) {
 867                     var list = obj.list;
 868                     var scope = args.scope;
 869                     // check that user did not leave the view mode before recieving this response
 870                     if (!(scope.active_repo.id == obj.repo_id && scope.viewmode == 2 && node && node.getChildrenEl())) {
 871                         return;
 872                     }
 873                     if (cb != null) { // (in manual mode do not update current path)
 874                         scope.viewbar_set_enabled(true);
 875                         scope.parse_repository_options(obj);
 876                     }
 877                     node.highlight(false);
 878                     node.origlist = obj.list ? obj.list : null;
 879                     node.origpath = obj.path ? obj.path : null;
 880                     node.children = [];
 881                     for(k in list) {
 882                         if (list[k].children && retrieved_children[list[k].path]) {
 883                             // if this child is a folder and has already been retrieved
 884                             node.children[node.children.length] = retrieved_children[list[k].path];
 885                         } else {
 886                             // append new file to the list
 887                             scope.view_as_list([list[k]]);
 888                         }
 889                     }
 890                     if (cb == null) {
 891                         node.refresh();
 892                     } else {
 893                         // invoke callback requested by TreeView component
 894                         cb();
 895                     }
 896                     scope.content_scrolled();
 897                 }
 898             }, false);
 899         },
 900        classnamecallback : function(node) {
 901             var classname = '';
 902             if (node.children) {
 903                 classname = classname + ' fp-folder';
 904             }
 905             if (node.isref) {
 906                 classname = classname + ' fp-isreference';
 907             }
 908             if (node.refcount) {
 909                 classname = classname + ' fp-hasreferences';
 910             }
 911             if (node.originalmissing) {
 912                 classname = classname + ' fp-originalmissing';
 913             }
 914             return Y.Lang.trim(classname);
 915         },
 916         /** displays list of files in tree (list) view mode. If param appenditems is specified,
 917          * appends those items to the end of the list. Otherwise (default behaviour)
 918          * clears the contents and displays the items from this.filelist */
 919         view_as_list: function(appenditems) {
 920             var list = (appenditems != null) ? appenditems : this.filelist;
 921             this.viewmode = 2;
 922             if (!this.filelist || this.filelist.length==0 && (!this.filepath || !this.filepath.length)) {
 923                 this.display_error(M.util.get_string('nofilesavailable', 'repository'), 'nofilesavailable');
 924                 return;
 925             }
 926
 927             var element_template = Y.Node.create(M.core_filepicker.templates.listfilename);
 928             var options = {
 929                 viewmode : this.viewmode,
 930                 appendonly : (appenditems != null),
 931                 filenode : element_template,
 932                 callbackcontext : this,
 933                 callback : function(e, node) {
 934                     // TODO MDL-32736 e is not an event here but an object with properties 'event' and 'node'
 935                     if (!node.children) {
 936                         if (e.node.parent && e.node.parent.origpath) {
 937                             // set the current path
 938                             this.filepath = e.node.parent.origpath;
 939                             this.filelist = e.node.parent.origlist;
 940                             this.print_path();
 941                         }
 942                         this.select_file(node);
 943                     } else {
 944                         // save current path and filelist (in case we want to jump to other viewmode)
 945                         this.filepath = e.node.origpath;
 946                         this.filelist = e.node.origlist;
 947                         this.currentpath = e.node.path;
 948                         this.print_path();
 949                         this.content_scrolled();
 950                     }
 951                 },
 952                 classnamecallback : this.classnamecallback,
 953                 dynload : this.active_repo.dynload,
 954                 filepath : this.filepath,
 955                 treeview_dynload : this.treeview_dynload
 956             };
 957             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
 958         },
 959         /** displays list of files in icon view mode. If param appenditems is specified,
 960          * appends those items to the end of the list. Otherwise (default behaviour)
 961          * clears the contents and displays the items from this.filelist */
 962         view_as_icons: function(appenditems) {
 963             this.viewmode = 1;
 964             var list = (appenditems != null) ? appenditems : this.filelist;
 965             var element_template = Y.Node.create(M.core_filepicker.templates.iconfilename);
 966             if ((appenditems == null) && (!this.filelist || !this.filelist.length)) {
 967                 this.display_error(M.util.get_string('nofilesavailable', 'repository'), 'nofilesavailable');
 968                 return;
 969             }
 970             var options = {
 971                 viewmode : this.viewmode,
 972                 appendonly : (appenditems != null),
 973                 filenode : element_template,
 974                 callbackcontext : this,
 975                 callback : function(e, node) {
 976                     if (e.preventDefault) {
 977                         e.preventDefault();
 978                     }
 979                     if(node.children) {
 980                         if (this.active_repo.dynload) {
 981                             this.list({'path':node.path});
 982                         } else {
 983                             this.filelist = node.children;
 984                             this.view_files();
 985                         }
 986                     } else {
 987                         this.select_file(node);
 988                     }
 989                 },
 990                 classnamecallback : this.classnamecallback
 991             };
 992             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
 993         },
 994         /** displays list of files in table view mode. If param appenditems is specified,
 995          * appends those items to the end of the list. Otherwise (default behaviour)
 996          * clears the contents and displays the items from this.filelist */
 997         view_as_table: function(appenditems) {
 998             this.viewmode = 3;
 999             var list = (appenditems != null) ? appenditems : this.filelist;
1000             if (!appenditems && (!this.filelist || this.filelist.length==0) && !this.active_repo.hasmorepages) {
1001                 this.display_error(M.util.get_string('nofilesavailable', 'repository'), 'nofilesavailable');
1002                 return;
1003             }
1004             var element_template = Y.Node.create(M.core_filepicker.templates.listfilename);
1005             var options = {
1006                 viewmode : this.viewmode,
1007                 appendonly : (appenditems != null),
1008                 filenode : element_template,
1009                 callbackcontext : this,
1010                 sortable : !this.active_repo.hasmorepages,
1011                 callback : function(e, node) {
1012                     if (e.preventDefault) {e.preventDefault();}
1013                     if (node.children) {
1014                         if (this.active_repo.dynload) {
1015                             this.list({'path':node.path});
1016                         } else {
1017                             this.filelist = node.children;
1018                             this.view_files();
1019                         }
1020                     } else {
1021                         this.select_file(node);
1022                     }
1023                 },
1024                 classnamecallback : this.classnamecallback
1025             };
1026             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
1027         },
1028         /** If more than one page available, requests and displays the files from the next page */
1029         request_next_page: function() {
1030             if (!this.active_repo.hasmorepages || this.active_repo.nextpagerequested) {
1031                 // nothing to load
1032                 return;
1033             }
1034             this.active_repo.nextpagerequested = true;
1035             var nextpage = this.active_repo.page+1;
1036             var args = {
1037                 page: nextpage,
1038                 repo_id: this.active_repo.id
1039             };
1040             var action = this.active_repo.issearchresult ? 'search' : 'list';
1041             this.request({
1042                 path: this.currentpath,
1043                 scope: this,
1044                 action: action,
1045                 client_id: this.options.client_id,
1046                 repository_id: args.repo_id,
1047                 params: args,
1048                 callback: function(id, obj, args) {
1049                     var scope = args.scope;
1050                     // Check that we are still in the same repository and are expecting this page. We have no way
1051                     // to compare the requested page and the one returned, so we assume that if the last chunk
1052                     // of the breadcrumb is similar, then we probably are on the same page.
1053                     var samepage = true;
1054                     if (obj.path && scope.filepath) {
1055                         var pathbefore = scope.filepath[scope.filepath.length-1];
1056                         var pathafter = obj.path[obj.path.length-1];
1057                         if (pathbefore.path != pathafter.path) {
1058                             samepage = false;
1059                         }
1060                     }
1061                     if (scope.active_repo.hasmorepages && obj.list && obj.page &&
1062                             obj.repo_id == scope.active_repo.id &&
1063                             obj.page == scope.active_repo.page+1 && samepage) {
1064                         scope.parse_repository_options(obj, true);
1065                         scope.view_files(obj.list)
1066                     }
1067                 }
1068             }, false);
1069         },
1070         select_file: function(args) {
1071             var argstitle = args.title;
1072             // Limit the string length so it fits nicely on mobile devices
1073             var titlelength = 30;
1074             if (argstitle.length > titlelength) {
1075                 argstitle = argstitle.substring(0, titlelength) + '...';
1076             }
1077             Y.one('#fp-file_label_'+this.options.client_id).setContent(Y.Escape.html(M.util.get_string('select', 'repository')+' '+argstitle));
1078             this.selectui.show();
1079             Y.one('#'+this.selectnode.get('id')).focus();
1080             var client_id = this.options.client_id;
1081             var selectnode = this.selectnode;
1082             var return_types = this.options.repositories[this.active_repo.id].return_types;
1083             selectnode.removeClass('loading');
1084             selectnode.one('.fp-saveas input').set('value', args.title);
1085
1086             var imgnode = Y.Node.create('<img/>').
1087                 set('src', args.realthumbnail ? args.realthumbnail : args.thumbnail).
1088                 setStyle('maxHeight', ''+(args.thumbnail_height ? args.thumbnail_height : 90)+'px').
1089                 setStyle('maxWidth', ''+(args.thumbnail_width ? args.thumbnail_width : 90)+'px');
1090             selectnode.one('.fp-thumbnail').setContent('').appendChild(imgnode);
1091
1092             // filelink is the array of file-link-types available for this repository in this env
1093             var filelinktypes = [2/*FILE_INTERNAL*/,1/*FILE_EXTERNAL*/,4/*FILE_REFERENCE*/];
1094             var filelink = {}, firstfilelink = null, filelinkcount = 0;
1095             for (var i in filelinktypes) {
1096                 var allowed = (return_types & filelinktypes[i]) &&
1097                     (this.options.return_types & filelinktypes[i]);
1098                 if (filelinktypes[i] == 1/*FILE_EXTERNAL*/ && !this.options.externallink && this.options.env == 'editor') {
1099                     // special configuration setting 'repositoryallowexternallinks' may prevent
1100                     // using external links in editor environment
1101                     allowed = false;
1102                 }
1103                 filelink[filelinktypes[i]] = allowed;
1104                 firstfilelink = (firstfilelink==null && allowed) ? filelinktypes[i] : firstfilelink;
1105                 filelinkcount += allowed ? 1 : 0;
1106             }
1107             // make radio buttons enabled if this file-link-type is available and only if there are more than one file-link-type option
1108             // check the first available file-link-type option
1109             for (var linktype in filelink) {
1110                 var el = selectnode.one('.fp-linktype-'+linktype);
1111                 el.addClassIf('uneditable', !(filelink[linktype] && filelinkcount>1));
1112                 el.one('input').set('checked', (firstfilelink == linktype) ? 'checked' : '').simulate('change');
1113             }
1114
1115             // TODO MDL-32532: attributes 'hasauthor' and 'haslicense' need to be obsolete,
1116             selectnode.one('.fp-setauthor input').set('value', args.author ? args.author : this.options.author);
1117             this.set_selected_license(selectnode.one('.fp-setlicense'), args.license);
1118             selectnode.one('form #filesource-'+client_id).set('value', args.source);
1119
1120             // display static information about a file (when known)
1121             var attrs = ['datemodified','datecreated','size','license','author','dimensions'];
1122             for (var i in attrs) {
1123                 if (selectnode.one('.fp-'+attrs[i])) {
1124                     var value = (args[attrs[i]+'_f']) ? args[attrs[i]+'_f'] : (args[attrs[i]] ? args[attrs[i]] : '');
1125                     selectnode.one('.fp-'+attrs[i]).addClassIf('fp-unknown', ''+value == '')
1126                         .one('.fp-value').setContent(Y.Escape.html(value));
1127                 }
1128             }
1129         },
1130         setup_select_file: function() {
1131             var client_id = this.options.client_id;
1132             var selectnode = this.selectnode;
1133             var getfile = selectnode.one('.fp-select-confirm');
1134             // bind labels with corresponding inputs
1135             selectnode.all('.fp-saveas,.fp-linktype-2,.fp-linktype-1,.fp-linktype-4,.fp-setauthor,.fp-setlicense').each(function (node) {
1136                 node.all('label').set('for', node.one('input,select').generateID());
1137             });
1138             selectnode.one('.fp-linktype-2 input').setAttrs({value: 2, name: 'linktype'});
1139             selectnode.one('.fp-linktype-1 input').setAttrs({value: 1, name: 'linktype'});
1140             selectnode.one('.fp-linktype-4 input').setAttrs({value: 4, name: 'linktype'});
1141             var changelinktype = function(e) {
1142                 if (e.currentTarget.get('checked')) {
1143                     var allowinputs = e.currentTarget.get('value') != 1/*FILE_EXTERNAL*/;
1144                     selectnode.all('.fp-setauthor,.fp-setlicense,.fp-saveas').each(function(node){
1145                         node.addClassIf('uneditable', !allowinputs);
1146                         node.all('input,select').set('disabled', allowinputs?'':'disabled');
1147                     });
1148                 }
1149             };
1150             selectnode.all('.fp-linktype-2,.fp-linktype-1,.fp-linktype-4').each(function (node) {
1151                 node.one('input').on('change', changelinktype, this);
1152             });
1153             this.populate_licenses_select(selectnode.one('.fp-setlicense select'));
1154             // register event on clicking submit button
1155             getfile.on('click', function(e) {
1156                 e.preventDefault();
1157                 var client_id = this.options.client_id;
1158                 var scope = this;
1159                 var repository_id = this.active_repo.id;
1160                 var title = selectnode.one('.fp-saveas input').get('value');
1161                 var filesource = selectnode.one('form #filesource-'+client_id).get('value');
1162                 var params = {'title':title, 'source':filesource, 'savepath': this.options.savepath};
1163                 var license = selectnode.one('.fp-setlicense select');
1164                 if (license) {
1165                     params['license'] = license.get('value');
1166                     var origlicense = selectnode.one('.fp-license .fp-value');
1167                     if (origlicense) {
1168                         origlicense = origlicense.getContent();
1169                     }
1170                     this.set_preference('recentlicense', license.get('value'));
1171                 }
1172                 params['author'] = selectnode.one('.fp-setauthor input').get('value');
1173
1174                 var return_types = this.options.repositories[this.active_repo.id].return_types;
1175                 if (this.options.env == 'editor') {
1176                     // in editor, images are stored in '/' only
1177                     params.savepath = '/';
1178                 }
1179                 if ((this.options.externallink || this.options.env != 'editor') &&
1180                             (return_types & 1/*FILE_EXTERNAL*/) &&
1181                             (this.options.return_types & 1/*FILE_EXTERNAL*/) &&
1182                             selectnode.one('.fp-linktype-1 input').get('checked')) {
1183                     params['linkexternal'] = 'yes';
1184                 } else if ((return_types & 4/*FILE_REFERENCE*/) &&
1185                         (this.options.return_types & 4/*FILE_REFERENCE*/) &&
1186                         selectnode.one('.fp-linktype-4 input').get('checked')) {
1187                     params['usefilereference'] = '1';
1188                 }
1189
1190                 selectnode.addClass('loading');
1191                 this.request({
1192                     action:'download',
1193                     client_id: client_id,
1194                     repository_id: repository_id,
1195                     'params': params,
1196                     onerror: function(id, obj, args) {
1197                         selectnode.removeClass('loading');
1198                         scope.selectui.hide();
1199                     },
1200                     callback: function(id, obj, args) {
1201                         selectnode.removeClass('loading');
1202                         if (obj.event == 'fileexists') {
1203                             scope.process_existing_file(obj);
1204                             return;
1205                         }
1206                         if (scope.options.editor_target && scope.options.env=='editor') {
1207                             scope.options.editor_target.value=obj.url;
1208                             scope.options.editor_target.onchange();
1209                         }
1210                         scope.hide();
1211                         obj.client_id = client_id;
1212                         var formcallback_scope = args.scope.options.magicscope ? args.scope.options.magicscope : args.scope;
1213                         scope.options.formcallback.apply(formcallback_scope, [obj]);
1214                     }
1215                 }, false);
1216             }, this);
1217             var elform = selectnode.one('form');
1218             elform.appendChild(Y.Node.create('<input/>').
1219                 setAttrs({type:'hidden',id:'filesource-'+client_id}));
1220             elform.on('keydown', function(e) {
1221                 if (e.keyCode == 13) {
1222                     getfile.simulate('click');
1223                     e.preventDefault();
1224                 }
1225             }, this);
1226             var cancel = selectnode.one('.fp-select-cancel');
1227             cancel.on('click', function(e) {
1228                 e.preventDefault();
1229                 this.selectui.hide();
1230             }, this);
1231         },
1232         wait: function() {
1233             // First check there isn't already an interval in play, and if there is kill it now.
1234             if (this.waitinterval != null) {
1235                 clearInterval(this.waitinterval);
1236             }
1237             // Prepare the root node we will set content for and the loading template we want to display as a YUI node.
1238             var root = this.fpnode.one('.fp-content');
1239             var content = Y.Node.create(M.core_filepicker.templates.loading).addClass('fp-content-hidden').setStyle('opacity', 0);
1240             var count = 0;
1241             // Initiate an interval, we will have a count which will increment every 100 milliseconds.
1242             // Count 0 - the loading icon will have visibility set to hidden (invisible) and have an opacity of 0 (invisible also)
1243             // Count 5 - the visiblity will be switched to visible but opacity will still be at 0 (inivisible)
1244             // Counts 6 - 15 opacity will be increased by 0.1 making the loading icon visible over the period of a second
1245             // Count 16 - The interval will be cancelled.
1246             var interval = setInterval(function(){
1247                 if (!content || !root.contains(content) || count >= 15) {
1248                     clearInterval(interval);
1249                     return true;
1250                 }
1251                 if (count == 5) {
1252                     content.removeClass('fp-content-hidden');
1253                 } else if (count > 5) {
1254                     var opacity = parseFloat(content.getStyle('opacity'));
1255                     content.setStyle('opacity', opacity + 0.1);
1256                 }
1257                 count++;
1258                 return false;
1259             }, 100);
1260             // Store the wait interval so that we can check it in the future.
1261             this.waitinterval = interval;
1262             // Set the content to the loading template.
1263             root.setContent(content);
1264         },
1265         viewbar_set_enabled: function(mode) {
1266             var viewbar = this.fpnode.one('.fp-viewbar')
1267             if (viewbar) {
1268                 if (mode) {
1269                     viewbar.addClass('enabled').removeClass('disabled');
1270                     this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').setAttribute("aria-disabled", "false");
1271                     this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').setAttribute("tabindex", "");
1272                 } else {
1273                     viewbar.removeClass('enabled').addClass('disabled');
1274                     this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').setAttribute("aria-disabled", "true");
1275                     this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').setAttribute("tabindex", "-1");
1276                 }
1277             }
1278             this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').removeClass('checked');
1279             var modes = {1:'icons', 2:'tree', 3:'details'};
1280             this.fpnode.all('.fp-vb-'+modes[this.viewmode]).addClass('checked');
1281         },
1282         viewbar_clicked: function(e) {
1283             e.preventDefault();
1284             var viewbar = this.fpnode.one('.fp-viewbar')
1285             if (!viewbar || !viewbar.hasClass('disabled')) {
1286                 if (e.currentTarget.hasClass('fp-vb-tree')) {
1287                     this.viewmode = 2;
1288                 } else if (e.currentTarget.hasClass('fp-vb-details')) {
1289                     this.viewmode = 3;
1290                 } else {
1291                     this.viewmode = 1;
1292                 }
1293                 this.viewbar_set_enabled(true)
1294                 this.view_files();
1295                 this.set_preference('recentviewmode', this.viewmode);
1296             }
1297         },
1298         render: function() {
1299             var client_id = this.options.client_id;
1300             var fpid = "filepicker-"+ client_id;
1301             var labelid = 'fp-dialog-label_'+ client_id;
1302             var width = 873;
1303             var draggable = true;
1304             this.fpnode = Y.Node.createWithFilesSkin(M.core_filepicker.templates.generallayout).
1305                 set('id', 'filepicker-'+client_id).set('aria-labelledby', labelid);
1306
1307             if (this.in_iframe()) {
1308                 width = Math.floor(window.innerWidth * 0.95);
1309                 draggable = false;
1310             }
1311
1312             this.mainui = new M.core.dialogue({
1313                 extraClasses : ['filepicker'],
1314                 draggable    : draggable,
1315                 bodyContent  : this.fpnode,
1316                 headerContent: '<h3 id="'+ labelid +'">'+ M.util.get_string('filepicker', 'repository') +'</h3>',
1317                 centered     : true,
1318                 modal        : true,
1319                 visible      : false,
1320                 width        : width+'px',
1321                 responsiveWidth : 768,
1322                 height       : '558px',
1323                 zIndex       : this.options.zIndex
1324             });
1325
1326             // create panel for selecting a file (initially hidden)
1327             this.selectnode = Y.Node.createWithFilesSkin(M.core_filepicker.templates.selectlayout).
1328                 set('id', 'filepicker-select-'+client_id).
1329                 set('aria-live', 'assertive').
1330                 set('role', 'dialog');
1331
1332             var fplabel = 'fp-file_label_'+ client_id;
1333             this.selectui = new M.core.dialogue({
1334                 headerContent: '<h3 id="' + fplabel +'">'+M.util.get_string('select', 'repository')+'</h3>',
1335                 draggable    : true,
1336                 width        : '450px',
1337                 bodyContent  : this.selectnode,
1338                 centered     : true,
1339                 modal        : true,
1340                 visible      : false,
1341                 zIndex       : this.options.zIndex
1342             });
1343             Y.one('#'+this.selectnode.get('id')).setAttribute('aria-labelledby', fplabel);
1344             // event handler for lazy loading of thumbnails and next page
1345             this.fpnode.one('.fp-content').on(['scroll','resize'], this.content_scrolled, this);
1346             // save template for one path element and location of path bar
1347             if (this.fpnode.one('.fp-path-folder')) {
1348                 this.pathnode = this.fpnode.one('.fp-path-folder');
1349                 this.pathbar = this.pathnode.get('parentNode');
1350                 this.pathbar.removeChild(this.pathnode);
1351             }
1352             // assign callbacks for view mode switch buttons
1353             this.fpnode.one('.fp-vb-icons').on('click', this.viewbar_clicked, this);
1354             this.fpnode.one('.fp-vb-tree').on('click', this.viewbar_clicked, this);
1355             this.fpnode.one('.fp-vb-details').on('click', this.viewbar_clicked, this);
1356
1357             // assign callbacks for toolbar links
1358             this.setup_toolbar();
1359             this.setup_select_file();
1360             this.hide_header();
1361
1362             // processing repository listing
1363             // Resort the repositories by sortorder
1364             var sorted_repositories = [];
1365             for (var i in this.options.repositories) {
1366                 sorted_repositories[i] = this.options.repositories[i];
1367             }
1368             sorted_repositories.sort(function(a,b){return a.sortorder-b.sortorder});
1369             // extract one repository template and repeat it for all repositories available,
1370             // set name and icon and assign callbacks
1371             var reponode = this.fpnode.one('.fp-repo');
1372             if (reponode) {
1373                 var list = reponode.get('parentNode');
1374                 list.removeChild(reponode);
1375                 for (i in sorted_repositories) {
1376                     var repository = sorted_repositories[i];
1377                     var node = reponode.cloneNode(true);
1378                     list.appendChild(node);
1379                     node.
1380                         set('id', 'fp-repo-'+client_id+'-'+repository.id).
1381                         on('click', function(e, repository_id) {
1382                             e.preventDefault();
1383                             this.set_preference('recentrepository', repository_id);
1384                             this.hide_header();
1385                             this.list({'repo_id':repository_id});
1386                         }, this /*handler running scope*/, repository.id/*second argument of handler*/);
1387                     node.one('.fp-repo-name').setContent(Y.Escape.html(repository.name));
1388                     node.one('.fp-repo-icon').set('src', repository.icon);
1389                     if (i==0) {
1390                         node.addClass('first');
1391                     }
1392                     if (i==sorted_repositories.length-1) {
1393                         node.addClass('last');
1394                     }
1395                     if (i%2) {
1396                         node.addClass('even');
1397                     } else {
1398                         node.addClass('odd');
1399                     }
1400                 }
1401             }
1402             // display error if no repositories found
1403             if (sorted_repositories.length==0) {
1404                 this.display_error(M.util.get_string('norepositoriesavailable', 'repository'), 'norepositoriesavailable')
1405             }
1406             // display repository that was used last time
1407             this.mainui.show();
1408             this.show_recent_repository();
1409         },
1410         parse_repository_options: function(data, appendtolist) {
1411             if (appendtolist) {
1412                 if (data.list) {
1413                     if (!this.filelist) {
1414                         this.filelist = [];
1415                     }
1416                     for (var i in data.list) {
1417                         this.filelist[this.filelist.length] = data.list[i];
1418                     }
1419                 }
1420             } else {
1421                 this.filelist = data.list?data.list:null;
1422                 this.lazyloading = {};
1423             }
1424             this.filepath = data.path?data.path:null;
1425             this.objecttag = data.object?data.object:null;
1426             this.active_repo = {};
1427             this.active_repo.issearchresult = data.issearchresult ? true : false;
1428             this.active_repo.dynload = data.dynload?data.dynload:false;
1429             this.active_repo.pages = Number(data.pages?data.pages:null);
1430             this.active_repo.page = Number(data.page?data.page:null);
1431             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))
1432             this.active_repo.id = data.repo_id?data.repo_id:null;
1433             this.active_repo.nosearch = (data.login || data.nosearch); // this is either login form or 'nosearch' attribute set
1434             this.active_repo.norefresh = (data.login || data.norefresh); // this is either login form or 'norefresh' attribute set
1435             this.active_repo.nologin = (data.login || data.nologin); // this is either login form or 'nologin' attribute is set
1436             this.active_repo.logouttext = data.logouttext?data.logouttext:null;
1437             this.active_repo.logouturl = (data.logouturl || '');
1438             this.active_repo.message = (data.message || '');
1439             this.active_repo.help = data.help?data.help:null;
1440             this.active_repo.manage = data.manage?data.manage:null;
1441             this.print_header();
1442         },
1443         print_login: function(data) {
1444             this.parse_repository_options(data);
1445             var client_id = this.options.client_id;
1446             var repository_id = data.repo_id;
1447             var l = this.logindata = data.login;
1448             var loginurl = '';
1449             var action = data['login_btn_action'] ? data['login_btn_action'] : 'login';
1450             var form_id = 'fp-form-'+client_id;
1451
1452             var loginform_node = Y.Node.create(M.core_filepicker.templates.loginform);
1453             loginform_node.one('form').set('id', form_id);
1454             this.fpnode.one('.fp-content').setContent('').appendChild(loginform_node);
1455             var templates = {
1456                 'popup' : loginform_node.one('.fp-login-popup'),
1457                 'textarea' : loginform_node.one('.fp-login-textarea'),
1458                 'select' : loginform_node.one('.fp-login-select'),
1459                 'text' : loginform_node.one('.fp-login-text'),
1460                 'radio' : loginform_node.one('.fp-login-radiogroup'),
1461                 'checkbox' : loginform_node.one('.fp-login-checkbox'),
1462                 'input' : loginform_node.one('.fp-login-input')
1463             };
1464             var container;
1465             for (var i in templates) {
1466                 if (templates[i]) {
1467                     container = templates[i].get('parentNode');
1468                     container.removeChild(templates[i]);
1469                 }
1470             }
1471
1472             for(var k in l) {
1473                 if (templates[l[k].type]) {
1474                     var node = templates[l[k].type].cloneNode(true);
1475                 } else {
1476                     node = templates['input'].cloneNode(true);
1477                 }
1478                 if (l[k].type == 'popup') {
1479                     // submit button
1480                     loginurl = l[k].url;
1481                     var popupbutton = node.one('button');
1482                     popupbutton.on('click', function(e){
1483                         M.core_filepicker.active_filepicker = this;
1484                         window.open(loginurl, 'repo_auth', 'location=0,status=0,width=500,height=300,scrollbars=yes');
1485                         e.preventDefault();
1486                     }, this);
1487                     loginform_node.one('form').on('keydown', function(e) {
1488                         if (e.keyCode == 13) {
1489                             popupbutton.simulate('click');
1490                             e.preventDefault();
1491                         }
1492                     }, this);
1493                     loginform_node.all('.fp-login-submit').remove();
1494                     action = 'popup';
1495                 } else if(l[k].type=='textarea') {
1496                     // textarea element
1497                     if (node.one('label')) {
1498                         node.one('label').set('for', l[k].id).setContent(l[k].label);
1499                     }
1500                     node.one('textarea').setAttrs({id:l[k].id, name:l[k].name});
1501                 } else if(l[k].type=='select') {
1502                     // select element
1503                     if (node.one('label')) {
1504                         node.one('label').set('for', l[k].id).setContent(l[k].label);
1505                     }
1506                     node.one('select').setAttrs({id:l[k].id, name:l[k].name}).setContent('');
1507                     for (i in l[k].options) {
1508                         node.one('select').appendChild(
1509                             Y.Node.create('<option/>').
1510                                 set('value', l[k].options[i].value).
1511                                 setContent(l[k].options[i].label));
1512                     }
1513                 } else if(l[k].type=='radio') {
1514                     // radio input element
1515                     node.all('label').setContent(l[k].label);
1516                     var list = l[k].value.split('|');
1517                     var labels = l[k].value_label.split('|');
1518                     var radionode = null;
1519                     for(var item in list) {
1520                         if (radionode == null) {
1521                             radionode = node.one('.fp-login-radio');
1522                             radionode.one('input').set('checked', 'checked');
1523                         } else {
1524                             var x = radionode.cloneNode(true);
1525                             radionode.insert(x, 'after');
1526                             radionode = x;
1527                             radionode.one('input').set('checked', '');
1528                         }
1529                         radionode.one('input').setAttrs({id:''+l[k].id+item, name:l[k].name,
1530                             type:l[k].type, value:list[item]});
1531                         radionode.all('label').setContent(labels[item]).set('for', ''+l[k].id+item)
1532                     }
1533                     if (radionode == null) {
1534                         node.one('.fp-login-radio').remove();
1535                     }
1536                 } else {
1537                     // input element
1538                     if (node.one('label')) { node.one('label').set('for', l[k].id).setContent(l[k].label) }
1539                     node.one('input').
1540                         set('type', l[k].type).
1541                         set('id', l[k].id).
1542                         set('name', l[k].name).
1543                         set('value', l[k].value?l[k].value:'')
1544                 }
1545                 container.appendChild(node);
1546             }
1547             // custom label text for submit button
1548             if (data['login_btn_label']) {
1549                 loginform_node.all('.fp-login-submit').setContent(data['login_btn_label'])
1550             }
1551             // register button action for login and search
1552             if (action == 'login' || action == 'search') {
1553                 loginform_node.one('.fp-login-submit').on('click', function(e){
1554                     e.preventDefault();
1555                     this.hide_header();
1556                     this.request({
1557                         'scope': this,
1558                         'action':(action == 'search') ? 'search' : 'signin',
1559                         'path': '',
1560                         'client_id': client_id,
1561                         'repository_id': repository_id,
1562                         'form': {id:form_id, upload:false, useDisabled:true},
1563                         'callback': this.display_response
1564                     }, true);
1565                 }, this);
1566             }
1567             // if 'Enter' is pressed in the form, simulate the button click
1568             if (loginform_node.one('.fp-login-submit')) {
1569                 loginform_node.one('form').on('keydown', function(e) {
1570                     if (e.keyCode == 13) {
1571                         loginform_node.one('.fp-login-submit').simulate('click')
1572                         e.preventDefault();
1573                     }
1574                 }, this);
1575             }
1576         },
1577         display_response: function(id, obj, args) {
1578             var scope = args.scope;
1579             // highlight the current repository in repositories list
1580             scope.fpnode.all('.fp-repo.active').removeClass('active');
1581             scope.fpnode.all('#fp-repo-'+scope.options.client_id+'-'+obj.repo_id).addClass('active')
1582             // add class repository_REPTYPE to the filepicker (for repository-specific styles)
1583             for (var i in scope.options.repositories) {
1584                 scope.fpnode.removeClass('repository_'+scope.options.repositories[i].type)
1585             }
1586             if (obj.repo_id && scope.options.repositories[obj.repo_id]) {
1587                 scope.fpnode.addClass('repository_'+scope.options.repositories[obj.repo_id].type)
1588             }
1589             Y.one('.file-picker .fp-repo-items').focus();
1590
1591             // display response
1592             if (obj.login) {
1593                 scope.viewbar_set_enabled(false);
1594                 scope.print_login(obj);
1595             } else if (obj.upload) {
1596                 scope.viewbar_set_enabled(false);
1597                 scope.parse_repository_options(obj);
1598                 scope.create_upload_form(obj);
1599             } else if (obj.object) {
1600                 M.core_filepicker.active_filepicker = scope;
1601                 scope.viewbar_set_enabled(false);
1602                 scope.parse_repository_options(obj);
1603                 scope.create_object_container(obj.object);
1604             } else if (obj.list) {
1605                 scope.viewbar_set_enabled(true);
1606                 scope.parse_repository_options(obj);
1607                 scope.view_files();
1608             }
1609         },
1610         list: function(args) {
1611             if (!args) {
1612                 args = {};
1613             }
1614             if (!args.repo_id) {
1615                 args.repo_id = this.active_repo.id;
1616             }
1617             if (!args.path) {
1618                 args.path = '';
1619             }
1620             this.currentpath = args.path;
1621             this.request({
1622                 action: 'list',
1623                 client_id: this.options.client_id,
1624                 repository_id: args.repo_id,
1625                 path: args.path,
1626                 page: args.page,
1627                 scope: this,
1628                 callback: this.display_response
1629             }, true);
1630         },
1631         populate_licenses_select: function(node) {
1632             if (!node) {
1633                 return;
1634             }
1635             node.setContent('');
1636             var licenses = this.options.licenses;
1637             var recentlicense = this.get_preference('recentlicense');
1638             if (recentlicense) {
1639                 this.options.defaultlicense=recentlicense;
1640             }
1641             for (var i in licenses) {
1642                 var option = Y.Node.create('<option/>').
1643                     set('selected', (this.options.defaultlicense==licenses[i].shortname)).
1644                     set('value', licenses[i].shortname).
1645                     setContent(Y.Escape.html(licenses[i].fullname));
1646                 node.appendChild(option)
1647             }
1648         },
1649         set_selected_license: function(node, value) {
1650             var licenseset = false;
1651             node.all('option').each(function(el) {
1652                 if (el.get('value')==value || el.getContent()==value) {
1653                     el.set('selected', true);
1654                     licenseset = true;
1655                 }
1656             });
1657             if (!licenseset) {
1658                 // we did not find the value in the list
1659                 var recentlicense = this.get_preference('recentlicense');
1660                 node.all('option[selected]').set('selected', false);
1661                 node.all('option[value='+recentlicense+']').set('selected', true);
1662             }
1663         },
1664         create_object_container: function(data) {
1665             var content = this.fpnode.one('.fp-content');
1666             content.setContent('');
1667             //var str = '<object data="'+data.src+'" type="'+data.type+'" width="98%" height="98%" id="container_object" class="fp-object-container mdl-align"></object>';
1668             var container = Y.Node.create('<object/>').
1669                 setAttrs({data:data.src, type:data.type, id:'container_object'}).
1670                 addClass('fp-object-container');
1671             content.setContent('').appendChild(container);
1672         },
1673         create_upload_form: function(data) {
1674             var client_id = this.options.client_id;
1675             var id = data.upload.id+'_'+client_id;
1676             var content = this.fpnode.one('.fp-content');
1677             var template_name = 'uploadform_'+this.options.repositories[data.repo_id].type;
1678             var template = M.core_filepicker.templates[template_name] || M.core_filepicker.templates['uploadform'];
1679             content.setContent(template);
1680
1681             content.all('.fp-file,.fp-saveas,.fp-setauthor,.fp-setlicense').each(function (node) {
1682                 node.all('label').set('for', node.one('input,select').generateID());
1683             });
1684             content.one('form').set('id', id);
1685             content.one('.fp-file input').set('name', 'repo_upload_file');
1686             if (data.upload.label && content.one('.fp-file label')) {
1687                 content.one('.fp-file label').setContent(data.upload.label);
1688             }
1689             content.one('.fp-saveas input').set('name', 'title');
1690             content.one('.fp-setauthor input').setAttrs({name:'author', value:this.options.author});
1691             content.one('.fp-setlicense select').set('name', 'license');
1692             this.populate_licenses_select(content.one('.fp-setlicense select'))
1693             // append hidden inputs to the upload form
1694             content.one('form').appendChild(Y.Node.create('<input/>').
1695                 setAttrs({type:'hidden',name:'itemid',value:this.options.itemid}));
1696             var types = this.options.accepted_types;
1697             for (var i in types) {
1698                 content.one('form').appendChild(Y.Node.create('<input/>').
1699                     setAttrs({type:'hidden',name:'accepted_types[]',value:types[i]}));
1700             }
1701
1702             var scope = this;
1703             content.one('.fp-upload-btn').on('click', function(e) {
1704                 e.preventDefault();
1705                 var license = content.one('.fp-setlicense select');
1706
1707                 this.set_preference('recentlicense', license.get('value'));
1708                 if (!content.one('.fp-file input').get('value')) {
1709                     scope.print_msg(M.util.get_string('nofilesattached', 'repository'), 'error');
1710                     return false;
1711                 }
1712                 this.hide_header();
1713                 scope.request({
1714                         scope: scope,
1715                         action:'upload',
1716                         client_id: client_id,
1717                         params: {'savepath':scope.options.savepath},
1718                         repository_id: scope.active_repo.id,
1719                         form: {id: id, upload:true},
1720                         onerror: function(id, o, args) {
1721                             scope.create_upload_form(data);
1722                         },
1723                         callback: function(id, o, args) {
1724                             if (o.event == 'fileexists') {
1725                                 scope.create_upload_form(data);
1726                                 scope.process_existing_file(o);
1727                                 return;
1728                             }
1729                             if (scope.options.editor_target&&scope.options.env=='editor') {
1730                                 scope.options.editor_target.value=o.url;
1731                                 scope.options.editor_target.onchange();
1732                             }
1733                             scope.hide();
1734                             o.client_id = client_id;
1735                             var formcallback_scope = args.scope.options.magicscope ? args.scope.options.magicscope : args.scope;
1736                             scope.options.formcallback.apply(formcallback_scope, [o]);
1737                         }
1738                 }, true);
1739             }, this);
1740         },
1741         /** setting handlers and labels for elements in toolbar. Called once during the initial render of filepicker */
1742         setup_toolbar: function() {
1743             var client_id = this.options.client_id;
1744             var toolbar = this.fpnode.one('.fp-toolbar');
1745             toolbar.one('.fp-tb-logout').one('a,button').on('click', function(e) {
1746                 e.preventDefault();
1747                 if (!this.active_repo.nologin) {
1748                     this.hide_header();
1749                     this.request({
1750                         action:'logout',
1751                         client_id: this.options.client_id,
1752                         repository_id: this.active_repo.id,
1753                         path:'',
1754                         callback: this.display_response
1755                     }, true);
1756                 }
1757                 if (this.active_repo.logouturl) {
1758                     window.open(this.active_repo.logouturl, 'repo_auth', 'location=0,status=0,width=500,height=300,scrollbars=yes');
1759                 }
1760             }, this);
1761             toolbar.one('.fp-tb-refresh').one('a,button').on('click', function(e) {
1762                 e.preventDefault();
1763                 if (!this.active_repo.norefresh) {
1764                     this.list({ path: this.currentpath });
1765                 }
1766             }, this);
1767             toolbar.one('.fp-tb-search form').
1768                 set('method', 'POST').
1769                 set('id', 'fp-tb-search-'+client_id).
1770                 on('submit', function(e) {
1771                     e.preventDefault();
1772                     if (!this.active_repo.nosearch) {
1773                         this.request({
1774                             scope: this,
1775                             action:'search',
1776                             client_id: this.options.client_id,
1777                             repository_id: this.active_repo.id,
1778                             form: {id: 'fp-tb-search-'+client_id, upload:false, useDisabled:true},
1779                             callback: this.display_response
1780                         }, true);
1781                     }
1782             }, this);
1783
1784             // it does not matter what kind of element is .fp-tb-manage, we create a dummy <a>
1785             // element and use it to open url on click event
1786             var managelnk = Y.Node.create('<a/>').
1787                 setAttrs({id:'fp-tb-manage-'+client_id+'-link', target:'_blank'}).
1788                 setStyle('display', 'none');
1789             toolbar.append(managelnk);
1790             toolbar.one('.fp-tb-manage').one('a,button').
1791                 on('click', function(e) {
1792                     e.preventDefault();
1793                     managelnk.simulate('click')
1794                 });
1795
1796             // same with .fp-tb-help
1797             var helplnk = Y.Node.create('<a/>').
1798                 setAttrs({id:'fp-tb-help-'+client_id+'-link', target:'_blank'}).
1799                 setStyle('display', 'none');
1800             toolbar.append(helplnk);
1801             toolbar.one('.fp-tb-help').one('a,button').
1802                 on('click', function(e) {
1803                     e.preventDefault();
1804                     helplnk.simulate('click')
1805                 });
1806         },
1807         hide_header: function() {
1808             if (this.fpnode.one('.fp-toolbar')) {
1809                 this.fpnode.one('.fp-toolbar').addClass('empty');
1810             }
1811             if (this.pathbar) {
1812                 this.pathbar.setContent('').addClass('empty');
1813             }
1814         },
1815         print_header: function() {
1816             var r = this.active_repo;
1817             var scope = this;
1818             var client_id = this.options.client_id;
1819             this.hide_header();
1820             this.print_path();
1821             var toolbar = this.fpnode.one('.fp-toolbar');
1822             if (!toolbar) { return; }
1823
1824             var enable_tb_control = function(node, enabled) {
1825                 if (!node) { return; }
1826                 node.addClassIf('disabled', !enabled).addClassIf('enabled', enabled)
1827                 if (enabled) {
1828                     toolbar.removeClass('empty');
1829                 }
1830             }
1831
1832             // TODO 'back' permanently disabled for now. Note, flickr_public uses 'Logout' for it!
1833             enable_tb_control(toolbar.one('.fp-tb-back'), false);
1834
1835             // search form
1836             enable_tb_control(toolbar.one('.fp-tb-search'), !r.nosearch);
1837             if(!r.nosearch) {
1838                 var searchform = toolbar.one('.fp-tb-search form');
1839                 searchform.setContent('');
1840                 this.request({
1841                     scope: this,
1842                     action:'searchform',
1843                     repository_id: this.active_repo.id,
1844                     callback: function(id, obj, args) {
1845                         if (obj.repo_id == scope.active_repo.id && obj.form) {
1846                             // if we did not jump to another repository meanwhile
1847                             searchform.setContent(obj.form);
1848                             // Highlight search text when user click for search.
1849                             var searchnode = searchform.one('input[name="s"]');
1850                             if (searchnode) {
1851                                 searchnode.once('click', function(e) {
1852                                     e.preventDefault();
1853                                     this.select();
1854                                 });
1855                             }
1856                         }
1857                     }
1858                 }, false);
1859             }
1860
1861             // refresh button
1862             // weather we use cache for this instance, this button will reload listing anyway
1863             enable_tb_control(toolbar.one('.fp-tb-refresh'), !r.norefresh);
1864
1865             // login button
1866             enable_tb_control(toolbar.one('.fp-tb-logout'), !r.nologin);
1867
1868             // manage url
1869             enable_tb_control(toolbar.one('.fp-tb-manage'), r.manage);
1870             Y.one('#fp-tb-manage-'+client_id+'-link').set('href', r.manage);
1871
1872             // help url
1873             enable_tb_control(toolbar.one('.fp-tb-help'), r.help);
1874             Y.one('#fp-tb-help-'+client_id+'-link').set('href', r.help);
1875
1876             // message
1877             enable_tb_control(toolbar.one('.fp-tb-message'), r.message);
1878             toolbar.one('.fp-tb-message').setContent(r.message);
1879         },
1880         print_path: function() {
1881             if (!this.pathbar) {
1882                 return;
1883             }
1884             this.pathbar.setContent('').addClass('empty');
1885             var p = this.filepath;
1886             if (p && p.length!=0 && this.viewmode != 2) {
1887                 for(var i = 0; i < p.length; i++) {
1888                     var el = this.pathnode.cloneNode(true);
1889                     this.pathbar.appendChild(el);
1890                     if (i == 0) {
1891                         el.addClass('first');
1892                     }
1893                     if (i == p.length-1) {
1894                         el.addClass('last');
1895                     }
1896                     if (i%2) {
1897                         el.addClass('even');
1898                     } else {
1899                         el.addClass('odd');
1900                     }
1901                     el.all('.fp-path-folder-name').setContent(Y.Escape.html(p[i].name));
1902                     el.on('click',
1903                             function(e, path) {
1904                                 e.preventDefault();
1905                                 this.list({'path':path});
1906                             },
1907                         this, p[i].path);
1908                 }
1909                 this.pathbar.removeClass('empty');
1910             }
1911         },
1912         hide: function() {
1913             this.selectui.hide();
1914             if (this.process_dlg) {
1915                 this.process_dlg.hide();
1916             }
1917             if (this.msg_dlg) {
1918                 this.msg_dlg.hide();
1919             }
1920             this.mainui.hide();
1921         },
1922         show: function() {
1923             if (this.fpnode) {
1924                 this.hide();
1925                 this.mainui.show();
1926                 this.show_recent_repository();
1927             } else {
1928                 this.launch();
1929             }
1930         },
1931         launch: function() {
1932             this.render();
1933         },
1934         show_recent_repository: function() {
1935             this.hide_header();
1936             this.viewbar_set_enabled(false);
1937             var repository_id = this.get_preference('recentrepository');
1938             this.viewmode = this.get_preference('recentviewmode');
1939             if (this.viewmode != 2 && this.viewmode != 3) {
1940                 this.viewmode = 1;
1941             }
1942             if (this.options.repositories[repository_id]) {
1943                 this.list({'repo_id':repository_id});
1944             }
1945         },
1946         get_preference: function (name) {
1947             if (this.options.userprefs[name]) {
1948                 return this.options.userprefs[name];
1949             } else {
1950                 return false;
1951             }
1952         },
1953         set_preference: function(name, value) {
1954             if (this.options.userprefs[name] != value) {
1955                 M.util.set_user_preference('filepicker_' + name, value);
1956                 this.options.userprefs[name] = value;
1957             }
1958         },
1959         in_iframe: function () {
1960             // If we're not the top window then we're in an iFrame
1961             return window.self !== window.top;
1962         }
1963     });
1964     var loading = Y.one('#filepicker-loading-'+options.client_id);
1965     if (loading) {
1966         loading.setStyle('display', 'none');
1967     }
1968     M.core_filepicker.instances[options.client_id] = new FilePickerHelper(options);
1969 };