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.defaultreturntype
  33  * this.active_repo.nosearch
  34  * this.active_repo.norefresh
  35  * this.active_repo.nologin
  36  * this.active_repo.help
  37  * this.active_repo.manage
  38  *
  39  * Server responses
  40  * =====
  41  * this.filelist, cached filelist
  42  * this.pages
  43  * this.page
  44  * this.filepath, current path (each element of the array is a part of the breadcrumb)
  45  * this.logindata, cached login form
  46  */
  47
  48 YUI.add('moodle-core_filepicker', function(Y) {
  49     /** help function to extract width/height style as a number, not as a string */
  50     Y.Node.prototype.getStylePx = function(attr) {
  51         var style = this.getStyle(attr);
  52         if (''+style == '0' || ''+style == '0px') {
  53             return 0;
  54         }
  55         var matches = style.match(/^([\d\.]+)px$/)
  56         if (matches && parseFloat(matches[1])) {
  57             return parseFloat(matches[1]);
  58         }
  59         return null;
  60     }
  61
  62     /** if condition is met, the class is added to the node, otherwise - removed */
  63     Y.Node.prototype.addClassIf = function(className, condition) {
  64         if (condition) {
  65             this.addClass(className);
  66         } else {
  67             this.removeClass(className);
  68         }
  69         return this;
  70     }
  71
  72     /** sets the width(height) of the node considering existing minWidth(minHeight) */
  73     Y.Node.prototype.setStyleAdv = function(stylename, value) {
  74         var stylenameCap = stylename.substr(0,1).toUpperCase() + stylename.substr(1, stylename.length-1).toLowerCase();
  75         this.setStyle(stylename, '' + Math.max(value, this.getStylePx('min'+stylenameCap)) + 'px')
  76         return this;
  77     }
  78
  79     /** set image source to src, if there is preview, remember it in lazyloading.
  80      *  If there is a preview and it was already loaded, use it. */
  81     Y.Node.prototype.setImgSrc = function(src, realsrc, lazyloading) {
  82         if (realsrc) {
  83             if (M.core_filepicker.loadedpreviews[realsrc]) {
  84                 this.set('src', realsrc).addClass('realpreview');
  85                 return this;
  86             } else {
  87                 if (!this.get('id')) {
  88                     this.generateID();
  89                 }
  90                 lazyloading[this.get('id')] = realsrc;
  91             }
  92         }
  93         this.set('src', src);
  94         return this;
  95     }
  96
  97     /**
  98      * Replaces the image source with preview. If the image is inside the treeview, we need
  99      * also to update the html property of corresponding YAHOO.widget.HTMLNode
 100      * @param array lazyloading array containing associations of imgnodeid->realsrc
 101      */
 102     Y.Node.prototype.setImgRealSrc = function(lazyloading) {
 103         if (this.get('id') && lazyloading[this.get('id')]) {
 104             var newsrc = lazyloading[this.get('id')];
 105             M.core_filepicker.loadedpreviews[newsrc] = true;
 106             this.set('src', newsrc).addClass('realpreview');
 107             delete lazyloading[this.get('id')];
 108             var treenode = this.ancestor('.fp-treeview')
 109             if (treenode && treenode.get('parentNode').treeview) {
 110                 treenode.get('parentNode').treeview.getRoot().refreshPreviews(this.get('id'), newsrc);
 111             }
 112         }
 113         return this;
 114     }
 115
 116     /** scan TreeView to find which node contains image with id=imgid and replace it's html
 117      * with the new image source. */
 118     Y.YUI2.widget.Node.prototype.refreshPreviews = function(imgid, newsrc, regex) {
 119         if (!regex) {
 120             regex = new RegExp("<img\\s[^>]*id=\""+imgid+"\"[^>]*?(/?)>", "im");
 121         }
 122         if (this.expanded || this.isLeaf) {
 123             var html = this.getContentHtml();
 124             if (html && this.setHtml && regex.test(html)) {
 125                 var newhtml = this.html.replace(regex, "<img id=\""+imgid+"\" src=\""+newsrc+"\" class=\"realpreview\"$1>", html);
 126                 this.setHtml(newhtml);
 127                 return true;
 128             }
 129             if (!this.isLeaf && this.children) {
 130                 for(var c in this.children) {
 131                     if (this.children[c].refreshPreviews(imgid, newsrc, regex)) {
 132                         return true;
 133                     }
 134                 }
 135             }
 136         }
 137         return false;
 138     }
 139
 140     /**
 141      * Displays a list of files (used by filepicker, filemanager) inside the Node
 142      *
 143      * @param array options
 144      *   viewmode : 1 - icons, 2 - tree, 3 - table
 145      *   appendonly : whether fileslist need to be appended instead of replacing the existing content
 146      *   filenode : Node element that contains template for displaying one file
 147      *   callback : On click callback. The element of the fileslist array will be passed as argument
 148      *   rightclickcallback : On right click callback (optional).
 149      *   callbackcontext : context where callbacks are executed
 150      *   sortable : whether content may be sortable (in table mode)
 151      *   dynload : allow dynamic load for tree view
 152      *   filepath : for pre-building of tree view - the path to the current directory in filepicker format
 153      *   treeview_dynload : callback to function to dynamically load the folder in tree view
 154      *   classnamecallback : callback to function that returns the class name for an element
 155      * @param array fileslist array of files to show, each array element may have attributes:
 156      *   title or fullname : file name
 157      *   shorttitle (optional) : display file name
 158      *   thumbnail : url of image
 159      *   icon : url of icon image
 160      *   thumbnail_width : width of thumbnail, default 90
 161      *   thumbnail_height : height of thumbnail, default 90
 162      *   thumbnail_alt : TODO not needed!
 163      *   description or thumbnail_title : alt text
 164      * @param array lazyloading : reference to the array with lazy loading images
 165      */
 166     Y.Node.prototype.fp_display_filelist = function(options, fileslist, lazyloading) {
 167         var viewmodeclassnames = {1:'fp-iconview', 2:'fp-treeview', 3:'fp-tableview'};
 168         var classname = viewmodeclassnames[options.viewmode];
 169         var scope = this;
 170         /** return whether file is a folder (different attributes in FileManager and FilePicker) */
 171         var file_is_folder = function(node) {
 172             if (node.children) {return true;}
 173             if (node.type && node.type == 'folder') {return true;}
 174             return false;
 175         };
 176         /** return the name of the file (different attributes in FileManager and FilePicker) */
 177         var file_get_filename = function(node) {
 178             return node.title ? node.title : node.fullname;
 179         };
 180         /** return display name of the file (different attributes in FileManager and FilePicker) */
 181         var file_get_displayname = function(node) {
 182             var displayname = node.shorttitle ? node.shorttitle : file_get_filename(node);
 183             return Y.Escape.html(displayname);
 184         };
 185         /** return file description (different attributes in FileManager and FilePicker) */
 186         var file_get_description = function(node) {
 187             var description = '';
 188             if (node.description) {
 189                 description = node.description;
 190             } else if (node.thumbnail_title) {
 191                 description = node.thumbnail_title;
 192             } else {
 193                 description = file_get_filename(node);
 194             }
 195             return Y.Escape.html(description);
 196         };
 197         /** help funciton for tree view */
 198         var build_tree = function(node, level) {
 199             // prepare file name with icon
 200             var el = Y.Node.create('<div/>');
 201             el.appendChild(options.filenode.cloneNode(true));
 202
 203             el.one('.fp-filename').setContent(file_get_displayname(node));
 204             // TODO add tooltip with node.title or node.thumbnail_title
 205             var tmpnodedata = {className:options.classnamecallback(node)};
 206             el.get('children').addClass(tmpnodedata.className);
 207             if (node.icon) {
 208                 el.one('.fp-icon').appendChild(Y.Node.create('<img/>'));
 209                 el.one('.fp-icon img').setImgSrc(node.icon, node.realicon, lazyloading);
 210             }
 211             // create node
 212             tmpnodedata.html = el.getContent();
 213             var tmpNode = new Y.YUI2.widget.HTMLNode(tmpnodedata, level, false);
 214             if (node.dynamicLoadComplete) {
 215                 tmpNode.dynamicLoadComplete = true;
 216             }
 217             tmpNode.fileinfo = node;
 218             tmpNode.isLeaf = !file_is_folder(node);
 219             if (!tmpNode.isLeaf) {
 220                 if(node.expanded) {
 221                     tmpNode.expand();
 222                 }
 223                 tmpNode.path = node.path ? node.path : (node.filepath ? node.filepath : '');
 224                 for(var c in node.children) {
 225                     build_tree(node.children[c], tmpNode);
 226                 }
 227             }
 228         };
 229         /** initialize tree view */
 230         var initialize_tree_view = function() {
 231             var parentid = scope.one('.'+classname).get('id');
 232             // TODO MDL-32736 use YUI3 gallery TreeView
 233             scope.treeview = new Y.YUI2.widget.TreeView(parentid);
 234             if (options.dynload) {
 235                 scope.treeview.setDynamicLoad(Y.bind(options.treeview_dynload, options.callbackcontext), 1);
 236             }
 237             scope.treeview.singleNodeHighlight = true;
 238             if (options.filepath && options.filepath.length) {
 239                 // we just jumped from icon/details view, we need to show all parents
 240                 // we extract as much information as possible from filepath and filelist
 241                 // and send additional requests to retrieve siblings for parent folders
 242                 var mytree = {};
 243                 var mytreeel = null;
 244                 for (var i in options.filepath) {
 245                     if (mytreeel == null) {
 246                         mytreeel = mytree;
 247                     } else {
 248                         mytreeel.children = [{}];
 249                         mytreeel = mytreeel.children[0];
 250                     }
 251                     var pathelement = options.filepath[i];
 252                     mytreeel.path = pathelement.path;
 253                     mytreeel.title = pathelement.name;
 254                     mytreeel.icon = pathelement.icon;
 255                     mytreeel.dynamicLoadComplete = true; // we will call it manually
 256                     mytreeel.expanded = true;
 257                 }
 258                 mytreeel.children = fileslist;
 259                 build_tree(mytree, scope.treeview.getRoot());
 260                 // manually call dynload for parent elements in the tree so we can load other siblings
 261                 if (options.dynload) {
 262                     var root = scope.treeview.getRoot();
 263                     while (root && root.children && root.children.length) {
 264                         root = root.children[0];
 265                         if (root.path == mytreeel.path) {
 266                             root.origpath = options.filepath;
 267                             root.origlist = fileslist;
 268                         } else if (!root.isLeaf && root.expanded) {
 269                             Y.bind(options.treeview_dynload, options.callbackcontext)(root, null);
 270                         }
 271                     }
 272                 }
 273             } else {
 274                 // there is no path information, just display all elements as a list, without hierarchy
 275                 for(k in fileslist) {
 276                     build_tree(fileslist[k], scope.treeview.getRoot());
 277                 }
 278             }
 279             scope.treeview.subscribe('clickEvent', function(e){
 280                 e.node.highlight(false);
 281                 var callback = options.callback;
 282                 if (options.rightclickcallback && e.event.target &&
 283                         Y.Node(e.event.target).ancestor('.fp-treeview .fp-contextmenu', true)) {
 284                     callback = options.rightclickcallback;
 285                 }
 286                 Y.bind(callback, options.callbackcontext)(e, e.node.fileinfo);
 287                 Y.YUI2.util.Event.stopEvent(e.event)
 288             });
 289             // TODO MDL-32736 support right click
 290             /*if (options.rightclickcallback) {
 291                 scope.treeview.subscribe('dblClickEvent', function(e){
 292                     e.node.highlight(false);
 293                     Y.bind(options.rightclickcallback, options.callbackcontext)(e, e.node.fileinfo);
 294                 });
 295             }*/
 296             scope.treeview.draw();
 297         };
 298         /** formatting function for table view */
 299         var formatValue = function (o){
 300             if (o.data[''+o.column.key+'_f_s']) {return o.data[''+o.column.key+'_f_s'];}
 301             else if (o.data[''+o.column.key+'_f']) {return o.data[''+o.column.key+'_f'];}
 302             else if (o.value) {return o.value;}
 303             else {return '';}
 304         };
 305         /** formatting function for table view */
 306         var formatTitle = function(o) {
 307             var el = Y.Node.create('<div/>');
 308             el.appendChild(options.filenode.cloneNode(true)); // TODO not node but string!
 309             el.get('children').addClass(o.data['classname']);
 310             el.one('.fp-filename').setContent(o.value);
 311             if (o.data['icon']) {
 312                 el.one('.fp-icon').appendChild(Y.Node.create('<img/>'));
 313                 el.one('.fp-icon img').setImgSrc(o.data['icon'], o.data['realicon'], lazyloading);
 314             }
 315             if (options.rightclickcallback) {
 316                 el.get('children').addClass('fp-hascontextmenu');
 317             }
 318             // TODO add tooltip with o.data['title'] (o.value) or o.data['thumbnail_title']
 319             return el.getContent();
 320         }
 321         /** sorting function for table view */
 322         var sortFoldersFirst = function(a, b, desc) {
 323             if (a.get('isfolder') && !b.get('isfolder')) {
 324                 return -1;
 325             }
 326             if (!a.get('isfolder') && b.get('isfolder')) {
 327                 return 1;
 328             }
 329             var aa = a.get(this.key), bb = b.get(this.key), dir = desc ? -1 : 1;
 330             return (aa > bb) ? dir : ((aa < bb) ? -dir : 0);
 331         }
 332         /** initialize table view */
 333         var initialize_table_view = function() {
 334             var cols = [
 335                 {key: "displayname", label: M.util.get_string('name', 'moodle'), allowHTML: true, formatter: formatTitle,
 336                     sortable: true, sortFn: sortFoldersFirst},
 337                 {key: "datemodified", label: M.util.get_string('lastmodified', 'moodle'), allowHTML: true, formatter: formatValue,
 338                     sortable: true, sortFn: sortFoldersFirst},
 339                 {key: "size", label: M.util.get_string('size', 'repository'), allowHTML: true, formatter: formatValue,
 340                     sortable: true, sortFn: sortFoldersFirst},
 341                 {key: "mimetype", label: M.util.get_string('type', 'repository'), allowHTML: true,
 342                     sortable: true, sortFn: sortFoldersFirst}
 343             ];
 344             scope.tableview = new Y.DataTable({columns: cols, data: fileslist});
 345             scope.tableview.delegate('click', function (e, tableview) {
 346                 var record = tableview.getRecord(e.currentTarget.get('id'));
 347                 if (record) {
 348                     var callback = options.callback;
 349                     if (options.rightclickcallback && e.target.ancestor('.fp-tableview .fp-contextmenu', true)) {
 350                         callback = options.rightclickcallback;
 351                     }
 352                     Y.bind(callback, this)(e, record.getAttrs());
 353                 }
 354             }, 'tr', options.callbackcontext, scope.tableview);
 355             if (options.rightclickcallback) {
 356                 scope.tableview.delegate('contextmenu', function (e, tableview) {
 357                     var record = tableview.getRecord(e.currentTarget.get('id'));
 358                     if (record) { Y.bind(options.rightclickcallback, this)(e, record.getAttrs()); }
 359                 }, 'tr', options.callbackcontext, scope.tableview);
 360             }
 361         }
 362         /** append items in table view mode */
 363         var append_files_table = function() {
 364             if (options.appendonly) {
 365                 fileslist.forEach(function(el) {
 366                     this.tableview.data.add(el);
 367                 },scope);
 368             }
 369             scope.tableview.render(scope.one('.'+classname));
 370             scope.tableview.sortable = options.sortable ? true : false;
 371         };
 372         /** append items in tree view mode */
 373         var append_files_tree = function() {
 374             if (options.appendonly) {
 375                 var parentnode = scope.treeview.getRoot();
 376                 if (scope.treeview.getHighlightedNode()) {
 377                     parentnode = scope.treeview.getHighlightedNode();
 378                     if (parentnode.isLeaf) {parentnode = parentnode.parent;}
 379                 }
 380                 for (var k in fileslist) {
 381                     build_tree(fileslist[k], parentnode);
 382                 }
 383                 scope.treeview.draw();
 384             } else {
 385                 // otherwise files were already added in initialize_tree_view()
 386             }
 387         }
 388         /** append items in icon view mode */
 389         var append_files_icons = function() {
 390             parent = scope.one('.'+classname);
 391             for (var k in fileslist) {
 392                 var node = fileslist[k];
 393                 var element = options.filenode.cloneNode(true);
 394                 parent.appendChild(element);
 395                 element.addClass(options.classnamecallback(node));
 396                 var filenamediv = element.one('.fp-filename');
 397                 filenamediv.setContent(file_get_displayname(node));
 398                 var imgdiv = element.one('.fp-thumbnail'), width, height, src;
 399                 if (node.thumbnail) {
 400                     width = node.thumbnail_width ? node.thumbnail_width : 90;
 401                     height = node.thumbnail_height ? node.thumbnail_height : 90;
 402                     src = node.thumbnail;
 403                 } else {
 404                     width = 16;
 405                     height = 16;
 406                     src = node.icon;
 407                 }
 408                 filenamediv.setStyleAdv('width', width);
 409                 imgdiv.setStyleAdv('width', width).setStyleAdv('height', height);
 410                 var img = Y.Node.create('<img/>').setAttrs({
 411                         title: file_get_description(node),
 412                         alt: Y.Escape.html(node.thumbnail_alt ? node.thumbnail_alt : file_get_filename(node))}).
 413                     setStyle('maxWidth', ''+width+'px').
 414                     setStyle('maxHeight', ''+height+'px');
 415                 img.setImgSrc(src, node.realthumbnail, lazyloading);
 416                 imgdiv.appendChild(img);
 417                 element.on('click', function(e, nd) {
 418                     if (options.rightclickcallback && e.target.ancestor('.fp-iconview .fp-contextmenu', true)) {
 419                         Y.bind(options.rightclickcallback, this)(e, nd);
 420                     } else {
 421                         Y.bind(options.callback, this)(e, nd);
 422                     }
 423                 }, options.callbackcontext, node);
 424                 if (options.rightclickcallback) {
 425                     element.on('contextmenu', options.rightclickcallback, options.callbackcontext, node);
 426                 }
 427             }
 428         }
 429
 430         // Notify the user if any of the files has a problem status.
 431         var problemFiles = [];
 432         fileslist.forEach(function(file) {
 433             if (!file_is_folder(file) && file.hasOwnProperty('status') && file.status != 0) {
 434                 problemFiles.push(file);
 435             }
 436         });
 437         if (problemFiles.length > 0) {
 438             require(["core/notification", "core/str"], function(Notification, Str) {
 439                 problemFiles.forEach(function(problemFile) {
 440                     Str.get_string('storedfilecannotreadfile', 'error', problemFile.fullname).then(function(string) {
 441                         Notification.addNotification({
 442                             message: string,
 443                             type: "error"
 444                         });
 445                         return;
 446                     }).catch(Notification.exception);
 447                 });
 448             });
 449         }
 450
 451         // If table view, need some additional properties
 452         // before passing fileslist to the YUI tableview
 453         if (options.viewmode == 3) {
 454             fileslist.forEach(function(el) {
 455                 el.displayname = file_get_displayname(el);
 456                 el.isfolder = file_is_folder(el);
 457                 el.classname = options.classnamecallback(el);
 458             }, scope);
 459         }
 460
 461         // initialize files view
 462         if (!options.appendonly) {
 463             var parent = Y.Node.create('<div/>').addClass(classname);
 464             this.setContent('').appendChild(parent);
 465             parent.generateID();
 466             if (options.viewmode == 2) {
 467                 initialize_tree_view();
 468             } else if (options.viewmode == 3) {
 469                 initialize_table_view();
 470             } else {
 471                 // nothing to initialize for icon view
 472             }
 473         }
 474
 475         // append files to the list
 476         if (options.viewmode == 2) {
 477             append_files_tree();
 478         } else if (options.viewmode == 3) {
 479             append_files_table();
 480         } else {
 481             append_files_icons();
 482         }
 483
 484     }
 485 }, '@VERSION@', {
 486     requires:['base', 'node', 'yui2-treeview', 'panel', 'cookie', 'datatable', 'datatable-sort']
 487 });
 488
 489 M.core_filepicker = M.core_filepicker || {};
 490
 491 /**
 492  * instances of file pickers used on page
 493  */
 494 M.core_filepicker.instances = M.core_filepicker.instances || {};
 495 M.core_filepicker.active_filepicker = null;
 496
 497 /**
 498  * HTML Templates to use in FilePicker
 499  */
 500 M.core_filepicker.templates = M.core_filepicker.templates || {};
 501
 502 /**
 503  * Array of image sources for real previews (realicon or realthumbnail) that are already loaded
 504  */
 505 M.core_filepicker.loadedpreviews = M.core_filepicker.loadedpreviews || {};
 506
 507 /**
 508 * Set selected file info
 509 *
 510 * @param object file info
 511 */
 512 M.core_filepicker.select_file = function(file) {
 513     M.core_filepicker.active_filepicker.select_file(file);
 514 }
 515
 516 /**
 517  * Init and show file picker
 518  */
 519 M.core_filepicker.show = function(Y, options) {
 520     if (!M.core_filepicker.instances[options.client_id]) {
 521         M.core_filepicker.init(Y, options);
 522     }
 523     M.core_filepicker.instances[options.client_id].options.formcallback = options.formcallback;
 524     M.core_filepicker.instances[options.client_id].show();
 525 };
 526
 527 M.core_filepicker.set_templates = function(Y, templates) {
 528     for (var templid in templates) {
 529         M.core_filepicker.templates[templid] = templates[templid];
 530     }
 531 }
 532
 533 /**
 534  * Add new file picker to current instances
 535  */
 536 M.core_filepicker.init = function(Y, options) {
 537     var FilePickerHelper = function(options) {
 538         FilePickerHelper.superclass.constructor.apply(this, arguments);
 539     };
 540
 541     FilePickerHelper.NAME = "FilePickerHelper";
 542     FilePickerHelper.ATTRS = {
 543         options: {},
 544         lang: {}
 545     };
 546
 547     Y.extend(FilePickerHelper, Y.Base, {
 548         api: M.cfg.wwwroot+'/repository/repository_ajax.php',
 549         cached_responses: {},
 550         waitinterval : null, // When the loading template is being displayed and its animation is running this will be an interval instance.
 551         initializer: function(options) {
 552             this.options = options;
 553             if (!this.options.savepath) {
 554                 this.options.savepath = '/';
 555             }
 556         },
 557
 558         destructor: function() {
 559         },
 560
 561         request: function(args, redraw) {
 562             var api = (args.api ? args.api : this.api) + '?action='+args.action;
 563             var params = {};
 564             var scope = args['scope'] ? args['scope'] : this;
 565             params['repo_id']=args.repository_id;
 566             params['p'] = args.path?args.path:'';
 567             params['page'] = args.page?args.page:'';
 568             params['env']=this.options.env;
 569             // the form element only accept certain file types
 570             params['accepted_types']=this.options.accepted_types;
 571             params['sesskey'] = M.cfg.sesskey;
 572             params['client_id'] = args.client_id;
 573             params['itemid'] = this.options.itemid?this.options.itemid:0;
 574             params['maxbytes'] = this.options.maxbytes?this.options.maxbytes:-1;
 575             // The unlimited value of areamaxbytes is -1, it is defined by FILE_AREA_MAX_BYTES_UNLIMITED.
 576             params['areamaxbytes'] = this.options.areamaxbytes ? this.options.areamaxbytes : -1;
 577             if (this.options.context && this.options.context.id) {
 578                 params['ctx_id'] = this.options.context.id;
 579             }
 580             if (args['params']) {
 581                 for (i in args['params']) {
 582                     params[i] = args['params'][i];
 583                 }
 584             }
 585             if (args.action == 'upload') {
 586                 var list = [];
 587                 for(var k in params) {
 588                     var value = params[k];
 589                     if(value instanceof Array) {
 590                         for(var i in value) {
 591                             list.push(k+'[]='+value[i]);
 592                         }
 593                     } else {
 594                         list.push(k+'='+value);
 595                     }
 596                 }
 597                 params = list.join('&');
 598             } else {
 599                 params = build_querystring(params);
 600             }
 601             var cfg = {
 602                 method: 'POST',
 603                 on: {
 604                     complete: function(id,o,p) {
 605                         var data = null;
 606                         try {
 607                             data = Y.JSON.parse(o.responseText);
 608                         } catch(e) {
 609                             if (o && o.status && o.status > 0) {
 610                                 Y.use('moodle-core-notification-exception', function() {
 611                                     return new M.core.exception(e);
 612                                 });
 613                                 return;
 614                             }
 615                         }
 616                         // error checking
 617                         if (data && data.error) {
 618                             Y.use('moodle-core-notification-ajaxexception', function () {
 619                                 return new M.core.ajaxException(data);
 620                             });
 621                             this.fpnode.one('.fp-content').setContent('');
 622                             return;
 623                         } else {
 624                             if (data.msg) {
 625                                 scope.print_msg(data.msg, 'info');
 626                             }
 627                             // cache result if applicable
 628                             if (args.action != 'upload' && data.allowcaching) {
 629                                 scope.cached_responses[params] = data;
 630                             }
 631                             // invoke callback
 632                             args.callback(id,data,p);
 633                         }
 634                     }
 635                 },
 636                 arguments: {
 637                     scope: scope
 638                 },
 639                 headers: {
 640                     'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'
 641                 },
 642                 data: params,
 643                 context: this
 644             };
 645             if (args.form) {
 646                 cfg.form = args.form;
 647             }
 648             // check if result of the same request has been already cached. If not, request it
 649             // (never applicable in case of form submission and/or upload action):
 650             if (!args.form && args.action != 'upload' && scope.cached_responses[params]) {
 651                 args.callback(null, scope.cached_responses[params], {scope: scope})
 652             } else {
 653                 Y.io(api, cfg);
 654                 if (redraw) {
 655                     this.wait();
 656                 }
 657             }
 658         },
 659         /** displays the dialog and processes rename/overwrite if there is a file with the same name in the same filearea*/
 660         process_existing_file: function(data) {
 661             var scope = this;
 662             var handleOverwrite = function(e) {
 663                 // overwrite
 664                 e.preventDefault();
 665                 var data = this.process_dlg.dialogdata;
 666                 var params = {}
 667                 params['existingfilename'] = data.existingfile.filename;
 668                 params['existingfilepath'] = data.existingfile.filepath;
 669                 params['newfilename'] = data.newfile.filename;
 670                 params['newfilepath'] = data.newfile.filepath;
 671                 this.hide_header();
 672                 this.request({
 673                     'params': params,
 674                     'scope': this,
 675                     'action':'overwrite',
 676                     'path': '',
 677                     'client_id': this.options.client_id,
 678                     'repository_id': this.active_repo.id,
 679                     'callback': function(id, o, args) {
 680                         scope.hide();
 681                         if (scope.options.editor_target && scope.options.env == 'editor') {
 682                             // editor needs to update url
 683                             scope.options.editor_target.value = data.existingfile.url;
 684                             scope.options.editor_target.onchange();
 685                         }
 686                         var fileinfo = {'client_id':scope.options.client_id,
 687                                 'url':data.existingfile.url,
 688                                 'file':data.existingfile.filename};
 689                         var formcallback_scope = scope.options.magicscope ? scope.options.magicscope : scope;
 690                         scope.options.formcallback.apply(formcallback_scope, [fileinfo]);
 691                     }
 692                 }, true);
 693             }
 694             var handleRename = function(e) {
 695                 // inserts file with the new name
 696                 e.preventDefault();
 697                 var scope = this;
 698                 var data = this.process_dlg.dialogdata;
 699                 if (scope.options.editor_target && scope.options.env == 'editor') {
 700                     scope.options.editor_target.value = data.newfile.url;
 701                     scope.options.editor_target.onchange();
 702                 }
 703                 scope.hide();
 704                 var formcallback_scope = scope.options.magicscope ? scope.options.magicscope : scope;
 705                 var fileinfo = {'client_id':scope.options.client_id,
 706                                 'url':data.newfile.url,
 707                                 'file':data.newfile.filename};
 708                 scope.options.formcallback.apply(formcallback_scope, [fileinfo]);
 709             }
 710             var handleCancel = function(e) {
 711                 // Delete tmp file
 712                 e.preventDefault();
 713                 var params = {};
 714                 params['newfilename'] = this.process_dlg.dialogdata.newfile.filename;
 715                 params['newfilepath'] = this.process_dlg.dialogdata.newfile.filepath;
 716                 this.request({
 717                     'params': params,
 718                     'scope': this,
 719                     'action':'deletetmpfile',
 720                     'path': '',
 721                     'client_id': this.options.client_id,
 722                     'repository_id': this.active_repo.id,
 723                     'callback': function(id, o, args) {
 724                         // let it be in background, from user point of view nothing is happenning
 725                     }
 726                 }, false);
 727                 this.process_dlg.hide();
 728                 this.selectui.hide();
 729             }
 730             if (!this.process_dlg) {
 731                 this.process_dlg_node = Y.Node.create(M.core_filepicker.templates.processexistingfile);
 732                 var node = this.process_dlg_node;
 733                 node.generateID();
 734                 this.process_dlg = new M.core.dialogue({
 735                     draggable    : true,
 736                     bodyContent  : node,
 737                     headerContent: M.util.get_string('fileexistsdialogheader', 'repository'),
 738                     centered     : true,
 739                     modal        : true,
 740                     visible      : false,
 741                     zIndex       : this.options.zIndex
 742                 });
 743                 node.one('.fp-dlg-butoverwrite').on('click', handleOverwrite, this);
 744                 node.one('.fp-dlg-butrename').on('click', handleRename, this);
 745                 node.one('.fp-dlg-butcancel').on('click', handleCancel, this);
 746                 if (this.options.env == 'editor') {
 747                     node.one('.fp-dlg-text').setContent(M.util.get_string('fileexistsdialog_editor', 'repository'));
 748                 } else {
 749                     node.one('.fp-dlg-text').setContent(M.util.get_string('fileexistsdialog_filemanager', 'repository'));
 750                 }
 751             }
 752             this.selectnode.removeClass('loading');
 753             this.process_dlg.dialogdata = data;
 754             this.process_dlg_node.one('.fp-dlg-butrename').setContent(M.util.get_string('renameto', 'repository', data.newfile.filename));
 755             this.process_dlg.show();
 756         },
 757         /** displays error instead of filepicker contents */
 758         display_error: function(errortext, errorcode) {
 759             this.fpnode.one('.fp-content').setContent(M.core_filepicker.templates.error);
 760             this.fpnode.one('.fp-content .fp-error').
 761                 addClass(errorcode).
 762                 setContent(Y.Escape.html(errortext));
 763         },
 764         /** displays message in a popup */
 765         print_msg: function(msg, type) {
 766             var header = M.util.get_string('error', 'moodle');
 767             if (type != 'error') {
 768                 type = 'info'; // one of only two types excepted
 769                 header = M.util.get_string('info', 'moodle');
 770             }
 771             if (!this.msg_dlg) {
 772                 this.msg_dlg_node = Y.Node.create(M.core_filepicker.templates.message);
 773                 this.msg_dlg_node.generateID();
 774
 775                 this.msg_dlg = new M.core.dialogue({
 776                     draggable    : true,
 777                     bodyContent  : this.msg_dlg_node,
 778                     centered     : true,
 779                     modal        : true,
 780                     visible      : false,
 781                     zIndex       : this.options.zIndex
 782                 });
 783                 this.msg_dlg_node.one('.fp-msg-butok').on('click', function(e) {
 784                     e.preventDefault();
 785                     this.msg_dlg.hide();
 786                 }, this);
 787             }
 788
 789             this.msg_dlg.set('headerContent', header);
 790             this.msg_dlg_node.removeClass('fp-msg-info').removeClass('fp-msg-error').addClass('fp-msg-'+type)
 791             this.msg_dlg_node.one('.fp-msg-text').setContent(Y.Escape.html(msg));
 792             this.msg_dlg.show();
 793         },
 794         view_files: function(appenditems) {
 795             this.viewbar_set_enabled(true);
 796             this.print_path();
 797             /*if ((appenditems == null) && (!this.filelist || !this.filelist.length) && !this.active_repo.hasmorepages) {
 798              // TODO do it via classes and adjust for each view mode!
 799                 // If there are no items and no next page, just display status message and quit
 800                 this.display_error(M.util.get_string('nofilesavailable', 'repository'), 'nofilesavailable');
 801                 return;
 802             }*/
 803             if (this.viewmode == 2) {
 804                 this.view_as_list(appenditems);
 805             } else if (this.viewmode == 3) {
 806                 this.view_as_table(appenditems);
 807             } else {
 808                 this.view_as_icons(appenditems);
 809             }
 810             this.fpnode.one('.fp-content').setAttribute('tabindex', '0');
 811             this.fpnode.one('.fp-content').focus();
 812             // display/hide the link for requesting next page
 813             if (!appenditems && this.active_repo.hasmorepages) {
 814                 if (!this.fpnode.one('.fp-content .fp-nextpage')) {
 815                     this.fpnode.one('.fp-content').append(M.core_filepicker.templates.nextpage);
 816                 }
 817                 this.fpnode.one('.fp-content .fp-nextpage').one('a,button').on('click', function(e) {
 818                     e.preventDefault();
 819                     this.fpnode.one('.fp-content .fp-nextpage').addClass('loading');
 820                     this.request_next_page();
 821                 }, this);
 822             }
 823             if (!this.active_repo.hasmorepages && this.fpnode.one('.fp-content .fp-nextpage')) {
 824                 this.fpnode.one('.fp-content .fp-nextpage').remove();
 825             }
 826             if (this.fpnode.one('.fp-content .fp-nextpage')) {
 827                 this.fpnode.one('.fp-content .fp-nextpage').removeClass('loading');
 828             }
 829             this.content_scrolled();
 830         },
 831         content_scrolled: function(e) {
 832             setTimeout(Y.bind(function() {
 833                 if (this.processingimages) {
 834                     return;
 835                 }
 836                 this.processingimages = true;
 837                 var scope = this,
 838                     fpcontent = this.fpnode.one('.fp-content'),
 839                     fpcontenty = fpcontent.getY(),
 840                     fpcontentheight = fpcontent.getStylePx('height'),
 841                     nextpage = fpcontent.one('.fp-nextpage'),
 842                     is_node_visible = function(node) {
 843                         var offset = node.getY()-fpcontenty;
 844                         if (offset <= fpcontentheight && (offset >=0 || offset+node.getStylePx('height')>=0)) {
 845                             return true;
 846                         }
 847                         return false;
 848                     };
 849                 // automatically load next page when 'more' link becomes visible
 850                 if (nextpage && !nextpage.hasClass('loading') && is_node_visible(nextpage)) {
 851                     nextpage.one('a,button').simulate('click');
 852                 }
 853                 // replace src for visible images that need to be lazy-loaded
 854                 if (scope.lazyloading) {
 855                     fpcontent.all('img').each( function(node) {
 856                         if (node.get('id') && scope.lazyloading[node.get('id')] && is_node_visible(node)) {
 857                             node.setImgRealSrc(scope.lazyloading);
 858                         }
 859                     });
 860                 }
 861                 this.processingimages = false;
 862             }, this), 200)
 863         },
 864         treeview_dynload: function(node, cb) {
 865             var retrieved_children = {};
 866             if (node.children) {
 867                 for (var i in node.children) {
 868                     retrieved_children[node.children[i].path] = node.children[i];
 869                 }
 870             }
 871             this.request({
 872                 action:'list',
 873                 client_id: this.options.client_id,
 874                 repository_id: this.active_repo.id,
 875                 path:node.path?node.path:'',
 876                 page:node.page?args.page:'',
 877                 scope:this,
 878                 callback: function(id, obj, args) {
 879                     var list = obj.list;
 880                     var scope = args.scope;
 881                     // check that user did not leave the view mode before recieving this response
 882                     if (!(scope.active_repo.id == obj.repo_id && scope.viewmode == 2 && node && node.getChildrenEl())) {
 883                         return;
 884                     }
 885                     if (cb != null) { // (in manual mode do not update current path)
 886                         scope.viewbar_set_enabled(true);
 887                         scope.parse_repository_options(obj);
 888                     }
 889                     node.highlight(false);
 890                     node.origlist = obj.list ? obj.list : null;
 891                     node.origpath = obj.path ? obj.path : null;
 892                     node.children = [];
 893                     for(k in list) {
 894                         if (list[k].children && retrieved_children[list[k].path]) {
 895                             // if this child is a folder and has already been retrieved
 896                             node.children[node.children.length] = retrieved_children[list[k].path];
 897                         } else {
 898                             // append new file to the list
 899                             scope.view_as_list([list[k]]);
 900                         }
 901                     }
 902                     if (cb == null) {
 903                         node.refresh();
 904                     } else {
 905                         // invoke callback requested by TreeView component
 906                         cb();
 907                     }
 908                     scope.content_scrolled();
 909                 }
 910             }, false);
 911         },
 912        classnamecallback : function(node) {
 913             var classname = '';
 914             if (node.children) {
 915                 classname = classname + ' fp-folder';
 916             }
 917             if (node.isref) {
 918                 classname = classname + ' fp-isreference';
 919             }
 920             if (node.iscontrolledlink) {
 921                 classname = classname + ' fp-iscontrolledlink';
 922             }
 923             if (node.refcount) {
 924                 classname = classname + ' fp-hasreferences';
 925             }
 926             if (node.originalmissing) {
 927                 classname = classname + ' fp-originalmissing';
 928             }
 929             return Y.Lang.trim(classname);
 930         },
 931         /** displays list of files in tree (list) view mode. If param appenditems is specified,
 932          * appends those items to the end of the list. Otherwise (default behaviour)
 933          * clears the contents and displays the items from this.filelist */
 934         view_as_list: function(appenditems) {
 935             var list = (appenditems != null) ? appenditems : this.filelist;
 936             this.viewmode = 2;
 937             if (!this.filelist || this.filelist.length==0 && (!this.filepath || !this.filepath.length)) {
 938                 this.display_error(M.util.get_string('nofilesavailable', 'repository'), 'nofilesavailable');
 939                 return;
 940             }
 941
 942             var element_template = Y.Node.create(M.core_filepicker.templates.listfilename);
 943             var options = {
 944                 viewmode : this.viewmode,
 945                 appendonly : (appenditems != null),
 946                 filenode : element_template,
 947                 callbackcontext : this,
 948                 callback : function(e, node) {
 949                     // TODO MDL-32736 e is not an event here but an object with properties 'event' and 'node'
 950                     if (!node.children) {
 951                         if (e.node.parent && e.node.parent.origpath) {
 952                             // set the current path
 953                             this.filepath = e.node.parent.origpath;
 954                             this.filelist = e.node.parent.origlist;
 955                             this.print_path();
 956                         }
 957                         this.select_file(node);
 958                     } else {
 959                         // save current path and filelist (in case we want to jump to other viewmode)
 960                         this.filepath = e.node.origpath;
 961                         this.filelist = e.node.origlist;
 962                         this.currentpath = e.node.path;
 963                         this.print_path();
 964                         this.content_scrolled();
 965                     }
 966                 },
 967                 classnamecallback : this.classnamecallback,
 968                 dynload : this.active_repo.dynload,
 969                 filepath : this.filepath,
 970                 treeview_dynload : this.treeview_dynload
 971             };
 972             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
 973         },
 974         /** displays list of files in icon view mode. If param appenditems is specified,
 975          * appends those items to the end of the list. Otherwise (default behaviour)
 976          * clears the contents and displays the items from this.filelist */
 977         view_as_icons: function(appenditems) {
 978             this.viewmode = 1;
 979             var list = (appenditems != null) ? appenditems : this.filelist;
 980             var element_template = Y.Node.create(M.core_filepicker.templates.iconfilename);
 981             if ((appenditems == null) && (!this.filelist || !this.filelist.length)) {
 982                 this.display_error(M.util.get_string('nofilesavailable', 'repository'), 'nofilesavailable');
 983                 return;
 984             }
 985             var options = {
 986                 viewmode : this.viewmode,
 987                 appendonly : (appenditems != null),
 988                 filenode : element_template,
 989                 callbackcontext : this,
 990                 callback : function(e, node) {
 991                     if (e.preventDefault) {
 992                         e.preventDefault();
 993                     }
 994                     if(node.children) {
 995                         if (this.active_repo.dynload) {
 996                             this.list({'path':node.path});
 997                         } else {
 998                             this.filelist = node.children;
 999                             this.view_files();
1000                         }
1001                     } else {
1002                         this.select_file(node);
1003                     }
1004                 },
1005                 classnamecallback : this.classnamecallback
1006             };
1007             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
1008         },
1009         /** displays list of files in table view mode. If param appenditems is specified,
1010          * appends those items to the end of the list. Otherwise (default behaviour)
1011          * clears the contents and displays the items from this.filelist */
1012         view_as_table: function(appenditems) {
1013             this.viewmode = 3;
1014             var list = (appenditems != null) ? appenditems : this.filelist;
1015             if (!appenditems && (!this.filelist || this.filelist.length==0) && !this.active_repo.hasmorepages) {
1016                 this.display_error(M.util.get_string('nofilesavailable', 'repository'), 'nofilesavailable');
1017                 return;
1018             }
1019             var element_template = Y.Node.create(M.core_filepicker.templates.listfilename);
1020             var options = {
1021                 viewmode : this.viewmode,
1022                 appendonly : (appenditems != null),
1023                 filenode : element_template,
1024                 callbackcontext : this,
1025                 sortable : !this.active_repo.hasmorepages,
1026                 callback : function(e, node) {
1027                     if (e.preventDefault) {e.preventDefault();}
1028                     if (node.children) {
1029                         if (this.active_repo.dynload) {
1030                             this.list({'path':node.path});
1031                         } else {
1032                             this.filelist = node.children;
1033                             this.view_files();
1034                         }
1035                     } else {
1036                         this.select_file(node);
1037                     }
1038                 },
1039                 classnamecallback : this.classnamecallback
1040             };
1041             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
1042         },
1043         /** If more than one page available, requests and displays the files from the next page */
1044         request_next_page: function() {
1045             if (!this.active_repo.hasmorepages || this.active_repo.nextpagerequested) {
1046                 // nothing to load
1047                 return;
1048             }
1049             this.active_repo.nextpagerequested = true;
1050             var nextpage = this.active_repo.page+1;
1051             var args = {
1052                 page: nextpage,
1053                 repo_id: this.active_repo.id
1054             };
1055             var action = this.active_repo.issearchresult ? 'search' : 'list';
1056             this.request({
1057                 path: this.currentpath,
1058                 scope: this,
1059                 action: action,
1060                 client_id: this.options.client_id,
1061                 repository_id: args.repo_id,
1062                 params: args,
1063                 callback: function(id, obj, args) {
1064                     var scope = args.scope;
1065                     // Check that we are still in the same repository and are expecting this page. We have no way
1066                     // to compare the requested page and the one returned, so we assume that if the last chunk
1067                     // of the breadcrumb is similar, then we probably are on the same page.
1068                     var samepage = true;
1069                     if (obj.path && scope.filepath) {
1070                         var pathbefore = scope.filepath[scope.filepath.length-1];
1071                         var pathafter = obj.path[obj.path.length-1];
1072                         if (pathbefore.path != pathafter.path) {
1073                             samepage = false;
1074                         }
1075                     }
1076                     if (scope.active_repo.hasmorepages && obj.list && obj.page &&
1077                             obj.repo_id == scope.active_repo.id &&
1078                             obj.page == scope.active_repo.page+1 && samepage) {
1079                         scope.parse_repository_options(obj, true);
1080                         scope.view_files(obj.list)
1081                     }
1082                 }
1083             }, false);
1084         },
1085         select_file: function(args) {
1086             var argstitle = args.title;
1087             // Limit the string length so it fits nicely on mobile devices
1088             var titlelength = 30;
1089             if (argstitle.length > titlelength) {
1090                 argstitle = argstitle.substring(0, titlelength) + '...';
1091             }
1092             Y.one('#fp-file_label_'+this.options.client_id).setContent(Y.Escape.html(M.util.get_string('select', 'repository')+' '+argstitle));
1093             this.selectui.show();
1094             Y.one('#'+this.selectnode.get('id')).focus();
1095             var client_id = this.options.client_id;
1096             var selectnode = this.selectnode;
1097             var return_types = this.options.repositories[this.active_repo.id].return_types;
1098             selectnode.removeClass('loading');
1099             selectnode.one('.fp-saveas input').set('value', args.title);
1100
1101             var imgnode = Y.Node.create('<img/>').
1102                 set('src', args.realthumbnail ? args.realthumbnail : args.thumbnail).
1103                 setStyle('maxHeight', ''+(args.thumbnail_height ? args.thumbnail_height : 90)+'px').
1104                 setStyle('maxWidth', ''+(args.thumbnail_width ? args.thumbnail_width : 90)+'px');
1105             selectnode.one('.fp-thumbnail').setContent('').appendChild(imgnode);
1106
1107             // filelink is the array of file-link-types available for this repository in this env
1108             var filelinktypes = [2/*FILE_INTERNAL*/,1/*FILE_EXTERNAL*/,4/*FILE_REFERENCE*/,8/*FILE_CONTROLLED_LINK*/];
1109             var filelink = {}, firstfilelink = null, filelinkcount = 0;
1110             for (var i in filelinktypes) {
1111                 var allowed = (return_types & filelinktypes[i]) &&
1112                     (this.options.return_types & filelinktypes[i]);
1113                 if (filelinktypes[i] == 1/*FILE_EXTERNAL*/ && !this.options.externallink && this.options.env == 'editor') {
1114                     // special configuration setting 'repositoryallowexternallinks' may prevent
1115                     // using external links in editor environment
1116                     allowed = false;
1117                 }
1118                 filelink[filelinktypes[i]] = allowed;
1119                 firstfilelink = (firstfilelink==null && allowed) ? filelinktypes[i] : firstfilelink;
1120                 filelinkcount += allowed ? 1 : 0;
1121             }
1122             var defaultreturntype = this.options.repositories[this.active_repo.id].defaultreturntype;
1123             if (defaultreturntype) {
1124                 if (filelink[defaultreturntype]) {
1125                     firstfilelink = defaultreturntype;
1126                 }
1127             }
1128             // make radio buttons enabled if this file-link-type is available and only if there are more than one file-link-type option
1129             // check the first available file-link-type option
1130             for (var linktype in filelink) {
1131                 var el = selectnode.one('.fp-linktype-'+linktype);
1132                 el.addClassIf('uneditable', !(filelink[linktype] && filelinkcount>1));
1133                 el.one('input').set('checked', (firstfilelink == linktype) ? 'checked' : '').simulate('change');
1134             }
1135
1136             // TODO MDL-32532: attributes 'hasauthor' and 'haslicense' need to be obsolete,
1137             selectnode.one('.fp-setauthor input').set('value', args.author ? args.author : this.options.author);
1138             this.set_selected_license(selectnode.one('.fp-setlicense'), args.license);
1139             selectnode.one('form #filesource-'+client_id).set('value', args.source);
1140
1141             // display static information about a file (when known)
1142             var attrs = ['datemodified','datecreated','size','license','author','dimensions'];
1143             for (var i in attrs) {
1144                 if (selectnode.one('.fp-'+attrs[i])) {
1145                     var value = (args[attrs[i]+'_f']) ? args[attrs[i]+'_f'] : (args[attrs[i]] ? args[attrs[i]] : '');
1146                     selectnode.one('.fp-'+attrs[i]).addClassIf('fp-unknown', ''+value == '')
1147                         .one('.fp-value').setContent(Y.Escape.html(value));
1148                 }
1149             }
1150         },
1151         setup_select_file: function() {
1152             var client_id = this.options.client_id;
1153             var selectnode = this.selectnode;
1154             var getfile = selectnode.one('.fp-select-confirm');
1155             // bind labels with corresponding inputs
1156             selectnode.all('.fp-saveas,.fp-linktype-2,.fp-linktype-1,.fp-linktype-4,fp-linktype-8,.fp-setauthor,.fp-setlicense').each(function (node) {
1157                 node.all('label').set('for', node.one('input,select').generateID());
1158             });
1159             selectnode.one('.fp-linktype-2 input').setAttrs({value: 2, name: 'linktype'});
1160             selectnode.one('.fp-linktype-1 input').setAttrs({value: 1, name: 'linktype'});
1161             selectnode.one('.fp-linktype-4 input').setAttrs({value: 4, name: 'linktype'});
1162             selectnode.one('.fp-linktype-8 input').setAttrs({value: 8, name: 'linktype'});
1163             var changelinktype = function(e) {
1164                 if (e.currentTarget.get('checked')) {
1165                     var allowinputs = e.currentTarget.get('value') != 1/*FILE_EXTERNAL*/;
1166                     selectnode.all('.fp-setauthor,.fp-setlicense,.fp-saveas').each(function(node){
1167                         node.addClassIf('uneditable', !allowinputs);
1168                         node.all('input,select').set('disabled', allowinputs?'':'disabled');
1169                     });
1170                 }
1171             };
1172             selectnode.all('.fp-linktype-2,.fp-linktype-1,.fp-linktype-4,.fp-linktype-8').each(function (node) {
1173                 node.one('input').on('change', changelinktype, this);
1174             });
1175             this.populate_licenses_select(selectnode.one('.fp-setlicense select'));
1176             // register event on clicking submit button
1177             getfile.on('click', function(e) {
1178                 e.preventDefault();
1179                 var client_id = this.options.client_id;
1180                 var scope = this;
1181                 var repository_id = this.active_repo.id;
1182                 var title = selectnode.one('.fp-saveas input').get('value');
1183                 var filesource = selectnode.one('form #filesource-'+client_id).get('value');
1184                 var params = {'title':title, 'source':filesource, 'savepath': this.options.savepath};
1185                 var license = selectnode.one('.fp-setlicense select');
1186                 if (license) {
1187                     params['license'] = license.get('value');
1188                     var origlicense = selectnode.one('.fp-license .fp-value');
1189                     if (origlicense) {
1190                         origlicense = origlicense.getContent();
1191                     }
1192                     this.set_preference('recentlicense', license.get('value'));
1193                 }
1194                 params['author'] = selectnode.one('.fp-setauthor input').get('value');
1195
1196                 var return_types = this.options.repositories[this.active_repo.id].return_types;
1197                 if (this.options.env == 'editor') {
1198                     // in editor, images are stored in '/' only
1199                     params.savepath = '/';
1200                 }
1201                 if ((this.options.externallink || this.options.env != 'editor') &&
1202                             (return_types & 1/*FILE_EXTERNAL*/) &&
1203                             (this.options.return_types & 1/*FILE_EXTERNAL*/) &&
1204                             selectnode.one('.fp-linktype-1 input').get('checked')) {
1205                     params['linkexternal'] = 'yes';
1206                 } else if ((return_types & 4/*FILE_REFERENCE*/) &&
1207                         (this.options.return_types & 4/*FILE_REFERENCE*/) &&
1208                         selectnode.one('.fp-linktype-4 input').get('checked')) {
1209                     params['usefilereference'] = '1';
1210                 } else if ((return_types & 8/*FILE_CONTROLLED_LINK*/) &&
1211                         (this.options.return_types & 8/*FILE_CONTROLLED_LINK*/) &&
1212                         selectnode.one('.fp-linktype-8 input').get('checked')) {
1213                     params['usecontrolledlink'] = '1';
1214                 }
1215
1216                 selectnode.addClass('loading');
1217                 this.request({
1218                     action:'download',
1219                     client_id: client_id,
1220                     repository_id: repository_id,
1221                     'params': params,
1222                     onerror: function(id, obj, args) {
1223                         selectnode.removeClass('loading');
1224                         scope.selectui.hide();
1225                     },
1226                     callback: function(id, obj, args) {
1227                         selectnode.removeClass('loading');
1228                         if (obj.event == 'fileexists') {
1229                             scope.process_existing_file(obj);
1230                             return;
1231                         }
1232                         if (scope.options.editor_target && scope.options.env=='editor') {
1233                             scope.options.editor_target.value=obj.url;
1234                             scope.options.editor_target.onchange();
1235                         }
1236                         scope.hide();
1237                         obj.client_id = client_id;
1238                         var formcallback_scope = args.scope.options.magicscope ? args.scope.options.magicscope : args.scope;
1239                         scope.options.formcallback.apply(formcallback_scope, [obj]);
1240                     }
1241                 }, false);
1242             }, this);
1243             var elform = selectnode.one('form');
1244             elform.appendChild(Y.Node.create('<input/>').
1245                 setAttrs({type:'hidden',id:'filesource-'+client_id}));
1246             elform.on('keydown', function(e) {
1247                 if (e.keyCode == 13) {
1248                     getfile.simulate('click');
1249                     e.preventDefault();
1250                 }
1251             }, this);
1252             var cancel = selectnode.one('.fp-select-cancel');
1253             cancel.on('click', function(e) {
1254                 e.preventDefault();
1255                 this.selectui.hide();
1256             }, this);
1257         },
1258         wait: function() {
1259             // First check there isn't already an interval in play, and if there is kill it now.
1260             if (this.waitinterval != null) {
1261                 clearInterval(this.waitinterval);
1262             }
1263             // Prepare the root node we will set content for and the loading template we want to display as a YUI node.
1264             var root = this.fpnode.one('.fp-content');
1265             var content = Y.Node.create(M.core_filepicker.templates.loading).addClass('fp-content-hidden').setStyle('opacity', 0);
1266             var count = 0;
1267             // Initiate an interval, we will have a count which will increment every 100 milliseconds.
1268             // Count 0 - the loading icon will have visibility set to hidden (invisible) and have an opacity of 0 (invisible also)
1269             // Count 5 - the visiblity will be switched to visible but opacity will still be at 0 (inivisible)
1270             // Counts 6 - 15 opacity will be increased by 0.1 making the loading icon visible over the period of a second
1271             // Count 16 - The interval will be cancelled.
1272             var interval = setInterval(function(){
1273                 if (!content || !root.contains(content) || count >= 15) {
1274                     clearInterval(interval);
1275                     return true;
1276                 }
1277                 if (count == 5) {
1278                     content.removeClass('fp-content-hidden');
1279                 } else if (count > 5) {
1280                     var opacity = parseFloat(content.getStyle('opacity'));
1281                     content.setStyle('opacity', opacity + 0.1);
1282                 }
1283                 count++;
1284                 return false;
1285             }, 100);
1286             // Store the wait interval so that we can check it in the future.
1287             this.waitinterval = interval;
1288             // Set the content to the loading template.
1289             root.setContent(content);
1290         },
1291         viewbar_set_enabled: function(mode) {
1292             var viewbar = this.fpnode.one('.fp-viewbar')
1293             if (viewbar) {
1294                 if (mode) {
1295                     viewbar.addClass('enabled').removeClass('disabled');
1296                     this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').setAttribute("aria-disabled", "false");
1297                     this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').setAttribute("tabindex", "");
1298                 } else {
1299                     viewbar.removeClass('enabled').addClass('disabled');
1300                     this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').setAttribute("aria-disabled", "true");
1301                     this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').setAttribute("tabindex", "-1");
1302                 }
1303             }
1304             this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').removeClass('checked');
1305             var modes = {1:'icons', 2:'tree', 3:'details'};
1306             this.fpnode.all('.fp-vb-'+modes[this.viewmode]).addClass('checked');
1307         },
1308         viewbar_clicked: function(e) {
1309             e.preventDefault();
1310             var viewbar = this.fpnode.one('.fp-viewbar')
1311             if (!viewbar || !viewbar.hasClass('disabled')) {
1312                 if (e.currentTarget.hasClass('fp-vb-tree')) {
1313                     this.viewmode = 2;
1314                 } else if (e.currentTarget.hasClass('fp-vb-details')) {
1315                     this.viewmode = 3;
1316                 } else {
1317                     this.viewmode = 1;
1318                 }
1319                 this.viewbar_set_enabled(true)
1320                 this.view_files();
1321                 this.set_preference('recentviewmode', this.viewmode);
1322             }
1323         },
1324         render: function() {
1325             var client_id = this.options.client_id;
1326             var fpid = "filepicker-"+ client_id;
1327             var labelid = 'fp-dialog-label_'+ client_id;
1328             var width = 873;
1329             var draggable = true;
1330             this.fpnode = Y.Node.create(M.core_filepicker.templates.generallayout).
1331                 set('id', 'filepicker-'+client_id).set('aria-labelledby', labelid);
1332
1333             if (this.in_iframe()) {
1334                 width = Math.floor(window.innerWidth * 0.95);
1335                 draggable = false;
1336             }
1337
1338             this.mainui = new M.core.dialogue({
1339                 extraClasses : ['filepicker'],
1340                 draggable    : draggable,
1341                 bodyContent  : this.fpnode,
1342                 headerContent: '<h3 id="'+ labelid +'">'+ M.util.get_string('filepicker', 'repository') +'</h3>',
1343                 centered     : true,
1344                 modal        : true,
1345                 visible      : false,
1346                 width        : width+'px',
1347                 responsiveWidth : 768,
1348                 height       : '558px',
1349                 zIndex       : this.options.zIndex
1350             });
1351
1352             // create panel for selecting a file (initially hidden)
1353             this.selectnode = Y.Node.create(M.core_filepicker.templates.selectlayout).
1354                 set('id', 'filepicker-select-'+client_id).
1355                 set('aria-live', 'assertive').
1356                 set('role', 'dialog');
1357
1358             var fplabel = 'fp-file_label_'+ client_id;
1359             this.selectui = new M.core.dialogue({
1360                 headerContent: '<h3 id="' + fplabel +'">'+M.util.get_string('select', 'repository')+'</h3>',
1361                 draggable    : true,
1362                 width        : '450px',
1363                 bodyContent  : this.selectnode,
1364                 centered     : true,
1365                 modal        : true,
1366                 visible      : false,
1367                 zIndex       : this.options.zIndex
1368             });
1369             Y.one('#'+this.selectnode.get('id')).setAttribute('aria-labelledby', fplabel);
1370             // event handler for lazy loading of thumbnails and next page
1371             this.fpnode.one('.fp-content').on(['scroll','resize'], this.content_scrolled, this);
1372             // save template for one path element and location of path bar
1373             if (this.fpnode.one('.fp-path-folder')) {
1374                 this.pathnode = this.fpnode.one('.fp-path-folder');
1375                 this.pathbar = this.pathnode.get('parentNode');
1376                 this.pathbar.removeChild(this.pathnode);
1377             }
1378             // assign callbacks for view mode switch buttons
1379             this.fpnode.one('.fp-vb-icons').on('click', this.viewbar_clicked, this);
1380             this.fpnode.one('.fp-vb-tree').on('click', this.viewbar_clicked, this);
1381             this.fpnode.one('.fp-vb-details').on('click', this.viewbar_clicked, this);
1382
1383             // assign callbacks for toolbar links
1384             this.setup_toolbar();
1385             this.setup_select_file();
1386             this.hide_header();
1387
1388             // processing repository listing
1389             // Resort the repositories by sortorder
1390             var sorted_repositories = [];
1391             for (var i in this.options.repositories) {
1392                 sorted_repositories[i] = this.options.repositories[i];
1393             }
1394             sorted_repositories.sort(function(a,b){return a.sortorder-b.sortorder});
1395             // extract one repository template and repeat it for all repositories available,
1396             // set name and icon and assign callbacks
1397             var reponode = this.fpnode.one('.fp-repo');
1398             if (reponode) {
1399                 var list = reponode.get('parentNode');
1400                 list.removeChild(reponode);
1401                 for (i in sorted_repositories) {
1402                     var repository = sorted_repositories[i];
1403                     var node = reponode.cloneNode(true);
1404                     list.appendChild(node);
1405                     node.
1406                         set('id', 'fp-repo-'+client_id+'-'+repository.id).
1407                         on('click', function(e, repository_id) {
1408                             e.preventDefault();
1409                             this.set_preference('recentrepository', repository_id);
1410                             this.hide_header();
1411                             this.list({'repo_id':repository_id});
1412                         }, this /*handler running scope*/, repository.id/*second argument of handler*/);
1413                     node.one('.fp-repo-name').setContent(Y.Escape.html(repository.name));
1414                     node.one('.fp-repo-icon').set('src', repository.icon);
1415                     if (i==0) {
1416                         node.addClass('first');
1417                     }
1418                     if (i==sorted_repositories.length-1) {
1419                         node.addClass('last');
1420                     }
1421                     if (i%2) {
1422                         node.addClass('even');
1423                     } else {
1424                         node.addClass('odd');
1425                     }
1426                 }
1427             }
1428             // display error if no repositories found
1429             if (sorted_repositories.length==0) {
1430                 this.display_error(M.util.get_string('norepositoriesavailable', 'repository'), 'norepositoriesavailable')
1431             }
1432             // display repository that was used last time
1433             this.mainui.show();
1434             this.show_recent_repository();
1435         },
1436         parse_repository_options: function(data, appendtolist) {
1437             if (appendtolist) {
1438                 if (data.list) {
1439                     if (!this.filelist) {
1440                         this.filelist = [];
1441                     }
1442                     for (var i in data.list) {
1443                         this.filelist[this.filelist.length] = data.list[i];
1444                     }
1445                 }
1446             } else {
1447                 this.filelist = data.list?data.list:null;
1448                 this.lazyloading = {};
1449             }
1450             this.filepath = data.path?data.path:null;
1451             this.objecttag = data.object?data.object:null;
1452             this.active_repo = {};
1453             this.active_repo.issearchresult = data.issearchresult ? true : false;
1454             this.active_repo.defaultreturntype = data.defaultreturntype?data.defaultreturntype:null;
1455             this.active_repo.dynload = data.dynload?data.dynload:false;
1456             this.active_repo.pages = Number(data.pages?data.pages:null);
1457             this.active_repo.page = Number(data.page?data.page:null);
1458             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))
1459             this.active_repo.id = data.repo_id?data.repo_id:null;
1460             this.active_repo.nosearch = (data.login || data.nosearch); // this is either login form or 'nosearch' attribute set
1461             this.active_repo.norefresh = (data.login || data.norefresh); // this is either login form or 'norefresh' attribute set
1462             this.active_repo.nologin = (data.login || data.nologin); // this is either login form or 'nologin' attribute is set
1463             this.active_repo.logouttext = data.logouttext?data.logouttext:null;
1464             this.active_repo.logouturl = (data.logouturl || '');
1465             this.active_repo.message = (data.message || '');
1466             this.active_repo.help = data.help?data.help:null;
1467             this.active_repo.manage = data.manage?data.manage:null;
1468             this.print_header();
1469         },
1470         print_login: function(data) {
1471             this.parse_repository_options(data);
1472             var client_id = this.options.client_id;
1473             var repository_id = data.repo_id;
1474             var l = this.logindata = data.login;
1475             var loginurl = '';
1476             var action = data['login_btn_action'] ? data['login_btn_action'] : 'login';
1477             var form_id = 'fp-form-'+client_id;
1478
1479             var loginform_node = Y.Node.create(M.core_filepicker.templates.loginform);
1480             loginform_node.one('form').set('id', form_id);
1481             this.fpnode.one('.fp-content').setContent('').appendChild(loginform_node);
1482             var templates = {
1483                 'popup' : loginform_node.one('.fp-login-popup'),
1484                 'textarea' : loginform_node.one('.fp-login-textarea'),
1485                 'select' : loginform_node.one('.fp-login-select'),
1486                 'text' : loginform_node.one('.fp-login-text'),
1487                 'radio' : loginform_node.one('.fp-login-radiogroup'),
1488                 'checkbox' : loginform_node.one('.fp-login-checkbox'),
1489                 'input' : loginform_node.one('.fp-login-input')
1490             };
1491             var container;
1492             for (var i in templates) {
1493                 if (templates[i]) {
1494                     container = templates[i].get('parentNode');
1495                     container.removeChild(templates[i]);
1496                 }
1497             }
1498
1499             for(var k in l) {
1500                 if (templates[l[k].type]) {
1501                     var node = templates[l[k].type].cloneNode(true);
1502                 } else {
1503                     node = templates['input'].cloneNode(true);
1504                 }
1505                 if (l[k].type == 'popup') {
1506                     // submit button
1507                     loginurl = l[k].url;
1508                     var popupbutton = node.one('button');
1509                     popupbutton.on('click', function(e){
1510                         M.core_filepicker.active_filepicker = this;
1511                         window.open(loginurl, 'repo_auth', 'location=0,status=0,width=500,height=300,scrollbars=yes');
1512                         e.preventDefault();
1513                     }, this);
1514                     loginform_node.one('form').on('keydown', function(e) {
1515                         if (e.keyCode == 13) {
1516                             popupbutton.simulate('click');
1517                             e.preventDefault();
1518                         }
1519                     }, this);
1520                     loginform_node.all('.fp-login-submit').remove();
1521                     action = 'popup';
1522                 } else if(l[k].type=='textarea') {
1523                     // textarea element
1524                     if (node.one('label')) {
1525                         node.one('label').set('for', l[k].id).setContent(l[k].label);
1526                     }
1527                     node.one('textarea').setAttrs({id:l[k].id, name:l[k].name});
1528                 } else if(l[k].type=='select') {
1529                     // select element
1530                     if (node.one('label')) {
1531                         node.one('label').set('for', l[k].id).setContent(l[k].label);
1532                     }
1533                     node.one('select').setAttrs({id:l[k].id, name:l[k].name}).setContent('');
1534                     for (i in l[k].options) {
1535                         node.one('select').appendChild(
1536                             Y.Node.create('<option/>').
1537                                 set('value', l[k].options[i].value).
1538                                 setContent(l[k].options[i].label));
1539                     }
1540                 } else if(l[k].type=='radio') {
1541                     // radio input element
1542                     node.all('label').setContent(l[k].label);
1543                     var list = l[k].value.split('|');
1544                     var labels = l[k].value_label.split('|');
1545                     var radionode = null;
1546                     for(var item in list) {
1547                         if (radionode == null) {
1548                             radionode = node.one('.fp-login-radio');
1549                             radionode.one('input').set('checked', 'checked');
1550                         } else {
1551                             var x = radionode.cloneNode(true);
1552                             radionode.insert(x, 'after');
1553                             radionode = x;
1554                             radionode.one('input').set('checked', '');
1555                         }
1556                         radionode.one('input').setAttrs({id:''+l[k].id+item, name:l[k].name,
1557                             type:l[k].type, value:list[item]});
1558                         radionode.all('label').setContent(labels[item]).set('for', ''+l[k].id+item)
1559                     }
1560                     if (radionode == null) {
1561                         node.one('.fp-login-radio').remove();
1562                     }
1563                 } else {
1564                     // input element
1565                     if (node.one('label')) { node.one('label').set('for', l[k].id).setContent(l[k].label) }
1566                     node.one('input').
1567                         set('type', l[k].type).
1568                         set('id', l[k].id).
1569                         set('name', l[k].name).
1570                         set('value', l[k].value?l[k].value:'')
1571                 }
1572                 container.appendChild(node);
1573             }
1574             // custom label text for submit button
1575             if (data['login_btn_label']) {
1576                 loginform_node.all('.fp-login-submit').setContent(data['login_btn_label'])
1577             }
1578             // register button action for login and search
1579             if (action == 'login' || action == 'search') {
1580                 loginform_node.one('.fp-login-submit').on('click', function(e){
1581                     e.preventDefault();
1582                     this.hide_header();
1583                     this.request({
1584                         'scope': this,
1585                         'action':(action == 'search') ? 'search' : 'signin',
1586                         'path': '',
1587                         'client_id': client_id,
1588                         'repository_id': repository_id,
1589                         'form': {id:form_id, upload:false, useDisabled:true},
1590                         'callback': this.display_response
1591                     }, true);
1592                 }, this);
1593             }
1594             // if 'Enter' is pressed in the form, simulate the button click
1595             if (loginform_node.one('.fp-login-submit')) {
1596                 loginform_node.one('form').on('keydown', function(e) {
1597                     if (e.keyCode == 13) {
1598                         loginform_node.one('.fp-login-submit').simulate('click')
1599                         e.preventDefault();
1600                     }
1601                 }, this);
1602             }
1603         },
1604         display_response: function(id, obj, args) {
1605             var scope = args.scope;
1606             // highlight the current repository in repositories list
1607             scope.fpnode.all('.fp-repo.active').removeClass('active');
1608             scope.fpnode.all('#fp-repo-'+scope.options.client_id+'-'+obj.repo_id).addClass('active')
1609             // add class repository_REPTYPE to the filepicker (for repository-specific styles)
1610             for (var i in scope.options.repositories) {
1611                 scope.fpnode.removeClass('repository_'+scope.options.repositories[i].type)
1612             }
1613             if (obj.repo_id && scope.options.repositories[obj.repo_id]) {
1614                 scope.fpnode.addClass('repository_'+scope.options.repositories[obj.repo_id].type)
1615             }
1616             Y.one('.file-picker .fp-repo-items').focus();
1617
1618             // display response
1619             if (obj.login) {
1620                 scope.viewbar_set_enabled(false);
1621                 scope.print_login(obj);
1622             } else if (obj.upload) {
1623                 scope.viewbar_set_enabled(false);
1624                 scope.parse_repository_options(obj);
1625                 scope.create_upload_form(obj);
1626             } else if (obj.object) {
1627                 M.core_filepicker.active_filepicker = scope;
1628                 scope.viewbar_set_enabled(false);
1629                 scope.parse_repository_options(obj);
1630                 scope.create_object_container(obj.object);
1631             } else if (obj.list) {
1632                 scope.viewbar_set_enabled(true);
1633                 scope.parse_repository_options(obj);
1634                 scope.view_files();
1635             }
1636         },
1637         list: function(args) {
1638             if (!args) {
1639                 args = {};
1640             }
1641             if (!args.repo_id) {
1642                 args.repo_id = this.active_repo.id;
1643             }
1644             if (!args.path) {
1645                 args.path = '';
1646             }
1647             this.currentpath = args.path;
1648             this.request({
1649                 action: 'list',
1650                 client_id: this.options.client_id,
1651                 repository_id: args.repo_id,
1652                 path: args.path,
1653                 page: args.page,
1654                 scope: this,
1655                 callback: this.display_response
1656             }, true);
1657         },
1658         populate_licenses_select: function(node) {
1659             if (!node) {
1660                 return;
1661             }
1662             node.setContent('');
1663             var licenses = this.options.licenses;
1664             var recentlicense = this.get_preference('recentlicense');
1665             if (recentlicense) {
1666                 this.options.defaultlicense=recentlicense;
1667             }
1668             for (var i in licenses) {
1669                 var option = Y.Node.create('<option/>').
1670                     set('selected', (this.options.defaultlicense==licenses[i].shortname)).
1671                     set('value', licenses[i].shortname).
1672                     setContent(Y.Escape.html(licenses[i].fullname));
1673                 node.appendChild(option)
1674             }
1675         },
1676         set_selected_license: function(node, value) {
1677             var licenseset = false;
1678             node.all('option').each(function(el) {
1679                 if (el.get('value')==value || el.getContent()==value) {
1680                     el.set('selected', true);
1681                     licenseset = true;
1682                 }
1683             });
1684             if (!licenseset) {
1685                 // we did not find the value in the list
1686                 var recentlicense = this.get_preference('recentlicense');
1687                 node.all('option[selected]').set('selected', false);
1688                 node.all('option[value='+recentlicense+']').set('selected', true);
1689             }
1690         },
1691         create_object_container: function(data) {
1692             var content = this.fpnode.one('.fp-content');
1693             content.setContent('');
1694             //var str = '<object data="'+data.src+'" type="'+data.type+'" width="98%" height="98%" id="container_object" class="fp-object-container mdl-align"></object>';
1695             var container = Y.Node.create('<object/>').
1696                 setAttrs({data:data.src, type:data.type, id:'container_object'}).
1697                 addClass('fp-object-container');
1698             content.setContent('').appendChild(container);
1699         },
1700         create_upload_form: function(data) {
1701             var client_id = this.options.client_id;
1702             var id = data.upload.id+'_'+client_id;
1703             var content = this.fpnode.one('.fp-content');
1704             var template_name = 'uploadform_'+this.options.repositories[data.repo_id].type;
1705             var template = M.core_filepicker.templates[template_name] || M.core_filepicker.templates['uploadform'];
1706             content.setContent(template);
1707
1708             content.all('.fp-file,.fp-saveas,.fp-setauthor,.fp-setlicense').each(function (node) {
1709                 node.all('label').set('for', node.one('input,select').generateID());
1710             });
1711             content.one('form').set('id', id);
1712             content.one('.fp-file input').set('name', 'repo_upload_file');
1713             if (data.upload.label && content.one('.fp-file label')) {
1714                 content.one('.fp-file label').setContent(data.upload.label);
1715             }
1716             content.one('.fp-saveas input').set('name', 'title');
1717             content.one('.fp-setauthor input').setAttrs({name:'author', value:this.options.author});
1718             content.one('.fp-setlicense select').set('name', 'license');
1719             this.populate_licenses_select(content.one('.fp-setlicense select'))
1720             // append hidden inputs to the upload form
1721             content.one('form').appendChild(Y.Node.create('<input/>').
1722                 setAttrs({type:'hidden',name:'itemid',value:this.options.itemid}));
1723             var types = this.options.accepted_types;
1724             for (var i in types) {
1725                 content.one('form').appendChild(Y.Node.create('<input/>').
1726                     setAttrs({type:'hidden',name:'accepted_types[]',value:types[i]}));
1727             }
1728
1729             var scope = this;
1730             content.one('.fp-upload-btn').on('click', function(e) {
1731                 e.preventDefault();
1732                 var license = content.one('.fp-setlicense select');
1733
1734                 this.set_preference('recentlicense', license.get('value'));
1735                 if (!content.one('.fp-file input').get('value')) {
1736                     scope.print_msg(M.util.get_string('nofilesattached', 'repository'), 'error');
1737                     return false;
1738                 }
1739                 this.hide_header();
1740                 scope.request({
1741                         scope: scope,
1742                         action:'upload',
1743                         client_id: client_id,
1744                         params: {'savepath':scope.options.savepath},
1745                         repository_id: scope.active_repo.id,
1746                         form: {id: id, upload:true},
1747                         onerror: function(id, o, args) {
1748                             scope.create_upload_form(data);
1749                         },
1750                         callback: function(id, o, args) {
1751                             if (o.event == 'fileexists') {
1752                                 scope.create_upload_form(data);
1753                                 scope.process_existing_file(o);
1754                                 return;
1755                             }
1756                             if (scope.options.editor_target&&scope.options.env=='editor') {
1757                                 scope.options.editor_target.value=o.url;
1758                                 scope.options.editor_target.onchange();
1759                             }
1760                             scope.hide();
1761                             o.client_id = client_id;
1762                             var formcallback_scope = args.scope.options.magicscope ? args.scope.options.magicscope : args.scope;
1763                             scope.options.formcallback.apply(formcallback_scope, [o]);
1764                         }
1765                 }, true);
1766             }, this);
1767         },
1768         /** setting handlers and labels for elements in toolbar. Called once during the initial render of filepicker */
1769         setup_toolbar: function() {
1770             var client_id = this.options.client_id;
1771             var toolbar = this.fpnode.one('.fp-toolbar');
1772             toolbar.one('.fp-tb-logout').one('a,button').on('click', function(e) {
1773                 e.preventDefault();
1774                 if (!this.active_repo.nologin) {
1775                     this.hide_header();
1776                     this.request({
1777                         action:'logout',
1778                         client_id: this.options.client_id,
1779                         repository_id: this.active_repo.id,
1780                         path:'',
1781                         callback: this.display_response
1782                     }, true);
1783                 }
1784                 if (this.active_repo.logouturl) {
1785                     window.open(this.active_repo.logouturl, 'repo_auth', 'location=0,status=0,width=500,height=300,scrollbars=yes');
1786                 }
1787             }, this);
1788             toolbar.one('.fp-tb-refresh').one('a,button').on('click', function(e) {
1789                 e.preventDefault();
1790                 if (!this.active_repo.norefresh) {
1791                     this.list({ path: this.currentpath });
1792                 }
1793             }, this);
1794             toolbar.one('.fp-tb-search form').
1795                 set('method', 'POST').
1796                 set('id', 'fp-tb-search-'+client_id).
1797                 on('submit', function(e) {
1798                     e.preventDefault();
1799                     if (!this.active_repo.nosearch) {
1800                         this.request({
1801                             scope: this,
1802                             action:'search',
1803                             client_id: this.options.client_id,
1804                             repository_id: this.active_repo.id,
1805                             form: {id: 'fp-tb-search-'+client_id, upload:false, useDisabled:true},
1806                             callback: this.display_response
1807                         }, true);
1808                     }
1809             }, this);
1810
1811             // it does not matter what kind of element is .fp-tb-manage, we create a dummy <a>
1812             // element and use it to open url on click event
1813             var managelnk = Y.Node.create('<a/>').
1814                 setAttrs({id:'fp-tb-manage-'+client_id+'-link', target:'_blank'}).
1815                 setStyle('display', 'none');
1816             toolbar.append(managelnk);
1817             toolbar.one('.fp-tb-manage').one('a,button').
1818                 on('click', function(e) {
1819                     e.preventDefault();
1820                     managelnk.simulate('click')
1821                 });
1822
1823             // same with .fp-tb-help
1824             var helplnk = Y.Node.create('<a/>').
1825                 setAttrs({id:'fp-tb-help-'+client_id+'-link', target:'_blank'}).
1826                 setStyle('display', 'none');
1827             toolbar.append(helplnk);
1828             toolbar.one('.fp-tb-help').one('a,button').
1829                 on('click', function(e) {
1830                     e.preventDefault();
1831                     helplnk.simulate('click')
1832                 });
1833         },
1834         hide_header: function() {
1835             if (this.fpnode.one('.fp-toolbar')) {
1836                 this.fpnode.one('.fp-toolbar').addClass('empty');
1837             }
1838             if (this.pathbar) {
1839                 this.pathbar.setContent('').addClass('empty');
1840             }
1841         },
1842         print_header: function() {
1843             var r = this.active_repo;
1844             var scope = this;
1845             var client_id = this.options.client_id;
1846             this.hide_header();
1847             this.print_path();
1848             var toolbar = this.fpnode.one('.fp-toolbar');
1849             if (!toolbar) { return; }
1850
1851             var enable_tb_control = function(node, enabled) {
1852                 if (!node) { return; }
1853                 node.addClassIf('disabled', !enabled).addClassIf('enabled', enabled)
1854                 if (enabled) {
1855                     toolbar.removeClass('empty');
1856                 }
1857             }
1858
1859             // TODO 'back' permanently disabled for now. Note, flickr_public uses 'Logout' for it!
1860             enable_tb_control(toolbar.one('.fp-tb-back'), false);
1861
1862             // search form
1863             enable_tb_control(toolbar.one('.fp-tb-search'), !r.nosearch);
1864             if(!r.nosearch) {
1865                 var searchform = toolbar.one('.fp-tb-search form');
1866                 searchform.setContent('');
1867                 this.request({
1868                     scope: this,
1869                     action:'searchform',
1870                     repository_id: this.active_repo.id,
1871                     callback: function(id, obj, args) {
1872                         if (obj.repo_id == scope.active_repo.id && obj.form) {
1873                             // if we did not jump to another repository meanwhile
1874                             searchform.setContent(obj.form);
1875                             // Highlight search text when user click for search.
1876                             var searchnode = searchform.one('input[name="s"]');
1877                             if (searchnode) {
1878                                 searchnode.once('click', function(e) {
1879                                     e.preventDefault();
1880                                     this.select();
1881                                 });
1882                             }
1883                         }
1884                     }
1885                 }, false);
1886             }
1887
1888             // refresh button
1889             // weather we use cache for this instance, this button will reload listing anyway
1890             enable_tb_control(toolbar.one('.fp-tb-refresh'), !r.norefresh);
1891
1892             // login button
1893             enable_tb_control(toolbar.one('.fp-tb-logout'), !r.nologin);
1894
1895             // manage url
1896             enable_tb_control(toolbar.one('.fp-tb-manage'), r.manage);
1897             Y.one('#fp-tb-manage-'+client_id+'-link').set('href', r.manage);
1898
1899             // help url
1900             enable_tb_control(toolbar.one('.fp-tb-help'), r.help);
1901             Y.one('#fp-tb-help-'+client_id+'-link').set('href', r.help);
1902
1903             // message
1904             enable_tb_control(toolbar.one('.fp-tb-message'), r.message);
1905             toolbar.one('.fp-tb-message').setContent(r.message);
1906         },
1907         print_path: function() {
1908             if (!this.pathbar) {
1909                 return;
1910             }
1911             this.pathbar.setContent('').addClass('empty');
1912             var p = this.filepath;
1913             if (p && p.length!=0 && this.viewmode != 2) {
1914                 for(var i = 0; i < p.length; i++) {
1915                     var el = this.pathnode.cloneNode(true);
1916                     this.pathbar.appendChild(el);
1917                     if (i == 0) {
1918                         el.addClass('first');
1919                     }
1920                     if (i == p.length-1) {
1921                         el.addClass('last');
1922                     }
1923                     if (i%2) {
1924                         el.addClass('even');
1925                     } else {
1926                         el.addClass('odd');
1927                     }
1928                     el.all('.fp-path-folder-name').setContent(Y.Escape.html(p[i].name));
1929                     el.on('click',
1930                             function(e, path) {
1931                                 e.preventDefault();
1932                                 this.list({'path':path});
1933                             },
1934                         this, p[i].path);
1935                 }
1936                 this.pathbar.removeClass('empty');
1937             }
1938         },
1939         hide: function() {
1940             this.selectui.hide();
1941             if (this.process_dlg) {
1942                 this.process_dlg.hide();
1943             }
1944             if (this.msg_dlg) {
1945                 this.msg_dlg.hide();
1946             }
1947             this.mainui.hide();
1948         },
1949         show: function() {
1950             if (this.fpnode) {
1951                 this.hide();
1952                 this.mainui.show();
1953                 this.show_recent_repository();
1954             } else {
1955                 this.launch();
1956             }
1957         },
1958         launch: function() {
1959             this.render();
1960         },
1961         show_recent_repository: function() {
1962             this.hide_header();
1963             this.viewbar_set_enabled(false);
1964             var repository_id = this.get_preference('recentrepository');
1965             this.viewmode = this.get_preference('recentviewmode');
1966             if (this.viewmode != 2 && this.viewmode != 3) {
1967                 this.viewmode = 1;
1968             }
1969             if (this.options.repositories[repository_id]) {
1970                 this.list({'repo_id':repository_id});
1971             }
1972         },
1973         get_preference: function (name) {
1974             if (this.options.userprefs[name]) {
1975                 return this.options.userprefs[name];
1976             } else {
1977                 return false;
1978             }
1979         },
1980         set_preference: function(name, value) {
1981             if (this.options.userprefs[name] != value) {
1982                 M.util.set_user_preference('filepicker_' + name, value);
1983                 this.options.userprefs[name] = value;
1984             }
1985         },
1986         in_iframe: function () {
1987             // If we're not the top window then we're in an iFrame
1988             return window.self !== window.top;
1989         }
1990     });
1991     var loading = Y.one('#filepicker-loading-'+options.client_id);
1992     if (loading) {
1993         loading.setStyle('display', 'none');
1994     }
1995     M.core_filepicker.instances[options.client_id] = new FilePickerHelper(options);
1996 };