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                     // Whether search results are currently displayed in the active repository in the filepicker.
 264                     // We do not want to load siblings of parent elements when displaying search tree results.
 265                     var isSearchResult = typeof options.callbackcontext.active_repo !== 'undefined' &&
 266                         options.callbackcontext.active_repo.issearchresult;
 267                     while (root && root.children && root.children.length) {
 268                         root = root.children[0];
 269                         if (root.path == mytreeel.path) {
 270                             root.origpath = options.filepath;
 271                             root.origlist = fileslist;
 272                         } else if (!root.isLeaf && root.expanded && !isSearchResult) {
 273                             Y.bind(options.treeview_dynload, options.callbackcontext)(root, null);
 274                         }
 275                     }
 276                 }
 277             } else {
 278                 // there is no path information, just display all elements as a list, without hierarchy
 279                 for(k in fileslist) {
 280                     build_tree(fileslist[k], scope.treeview.getRoot());
 281                 }
 282             }
 283             scope.treeview.subscribe('clickEvent', function(e){
 284                 e.node.highlight(false);
 285                 var callback = options.callback;
 286                 if (options.rightclickcallback && e.event.target &&
 287                         Y.Node(e.event.target).ancestor('.fp-treeview .fp-contextmenu', true)) {
 288                     callback = options.rightclickcallback;
 289                 }
 290                 Y.bind(callback, options.callbackcontext)(e, e.node.fileinfo);
 291                 Y.YUI2.util.Event.stopEvent(e.event)
 292             });
 293             // TODO MDL-32736 support right click
 294             /*if (options.rightclickcallback) {
 295                 scope.treeview.subscribe('dblClickEvent', function(e){
 296                     e.node.highlight(false);
 297                     Y.bind(options.rightclickcallback, options.callbackcontext)(e, e.node.fileinfo);
 298                 });
 299             }*/
 300             scope.treeview.draw();
 301         };
 302         /** formatting function for table view */
 303         var formatValue = function (o){
 304             if (o.data[''+o.column.key+'_f_s']) {return o.data[''+o.column.key+'_f_s'];}
 305             else if (o.data[''+o.column.key+'_f']) {return o.data[''+o.column.key+'_f'];}
 306             else if (o.value) {return o.value;}
 307             else {return '';}
 308         };
 309         /** formatting function for table view */
 310         var formatTitle = function(o) {
 311             var el = Y.Node.create('<div/>');
 312             el.appendChild(options.filenode.cloneNode(true)); // TODO not node but string!
 313             el.get('children').addClass(o.data['classname']);
 314             el.one('.fp-filename').setContent(o.value);
 315             if (o.data['icon']) {
 316                 el.one('.fp-icon').appendChild(Y.Node.create('<img/>'));
 317                 el.one('.fp-icon img').setImgSrc(o.data['icon'], o.data['realicon'], lazyloading);
 318             }
 319             if (options.rightclickcallback) {
 320                 el.get('children').addClass('fp-hascontextmenu');
 321             }
 322             // TODO add tooltip with o.data['title'] (o.value) or o.data['thumbnail_title']
 323             return el.getContent();
 324         }
 325
 326         /**
 327          * Generate slave checkboxes based on toggleall's specification
 328          * @param {object} o An object reprsenting the record for the current row.
 329          * @return {html} The checkbox html
 330          */
 331         var formatCheckbox = function(o) {
 332             var el = Y.Node.create('<div/>');
 333
 334             var checkbox = Y.Node.create('<input/>')
 335                 .setAttribute('type', 'checkbox')
 336                 .setAttribute('data-fieldtype', 'checkbox')
 337                 .setAttribute('data-fullname', o.data.fullname)
 338                 .setAttribute('data-action', 'toggle')
 339                 .setAttribute('data-toggle', 'slave')
 340                 .setAttribute('data-togglegroup', 'file-selections')
 341                 .setAttribute('data-toggle-selectall', M.util.get_string('selectall', 'moodle'))
 342                 .setAttribute('data-toggle-deselectall', M.util.get_string('deselectall', 'moodle'));
 343
 344             var checkboxLabel = Y.Node.create('<label>')
 345                 .setHTML("Select file '" + o.data.fullname + "'")
 346                 .addClass('sr-only')
 347                 .setAttrs({
 348                     for: checkbox.generateID(),
 349                 });
 350
 351             el.appendChild(checkbox);
 352             el.appendChild(checkboxLabel);
 353             return el.getContent();
 354         };
 355         /** sorting function for table view */
 356         var sortFoldersFirst = function(a, b, desc) {
 357             if (a.get('isfolder') && !b.get('isfolder')) {
 358                 return -1;
 359             }
 360             if (!a.get('isfolder') && b.get('isfolder')) {
 361                 return 1;
 362             }
 363             var aa = a.get(this.key), bb = b.get(this.key), dir = desc ? -1 : 1;
 364             return (aa > bb) ? dir : ((aa < bb) ? -dir : 0);
 365         }
 366         /** initialize table view */
 367         var initialize_table_view = function() {
 368             var cols = [
 369                 {key: "displayname", label: M.util.get_string('name', 'moodle'), allowHTML: true, formatter: formatTitle,
 370                     sortable: true, sortFn: sortFoldersFirst},
 371                 {key: "datemodified", label: M.util.get_string('lastmodified', 'moodle'), allowHTML: true, formatter: formatValue,
 372                     sortable: true, sortFn: sortFoldersFirst},
 373                 {key: "size", label: M.util.get_string('size', 'repository'), allowHTML: true, formatter: formatValue,
 374                     sortable: true, sortFn: sortFoldersFirst},
 375                 {key: "mimetype", label: M.util.get_string('type', 'repository'), allowHTML: true,
 376                     sortable: true, sortFn: sortFoldersFirst}
 377             ];
 378
 379             // Generate a checkbox based on toggleall's specification
 380             var div = Y.Node.create('<div/>');
 381             var checkbox = Y.Node.create('<input/>')
 382                 .setAttribute('type', 'checkbox')
 383                 // .setAttribute('title', M.util.get_string('selectallornone', 'form'))
 384                 .setAttribute('data-action', 'toggle')
 385                 .setAttribute('data-toggle', 'master')
 386                 .setAttribute('data-togglegroup', 'file-selections');
 387
 388             var checkboxLabel = Y.Node.create('<label>')
 389                 .setHTML(M.util.get_string('selectallornone', 'form'))
 390                 .addClass('sr-only')
 391                 .setAttrs({
 392                     for: checkbox.generateID(),
 393                 });
 394
 395             div.appendChild(checkboxLabel);
 396             div.appendChild(checkbox);
 397
 398             // Define the selector for the click event handler.
 399             var clickEventSelector = 'tr';
 400             // Enable the selectable checkboxes
 401             if (options.disablecheckboxes != undefined && !options.disablecheckboxes) {
 402                 clickEventSelector = 'tr td:not(:first-child)';
 403                 cols.unshift({
 404                     key: "",
 405                     label: div.getContent(),
 406                     allowHTML: true,
 407                     formatter: formatCheckbox,
 408                     sortable: false
 409                 });
 410             }
 411             scope.tableview = new Y.DataTable({columns: cols, data: fileslist});
 412             scope.tableview.delegate('click', function (e, tableview) {
 413                 var record = tableview.getRecord(e.currentTarget.get('id'));
 414                 if (record) {
 415                     var callback = options.callback;
 416                     if (options.rightclickcallback && e.target.ancestor('.fp-tableview .fp-contextmenu', true)) {
 417                         callback = options.rightclickcallback;
 418                     }
 419                     Y.bind(callback, this)(e, record.getAttrs());
 420                 }
 421             }, clickEventSelector, options.callbackcontext, scope.tableview);
 422
 423             if (options.rightclickcallback) {
 424                 scope.tableview.delegate('contextmenu', function (e, tableview) {
 425                     var record = tableview.getRecord(e.currentTarget.get('id'));
 426                     if (record) { Y.bind(options.rightclickcallback, this)(e, record.getAttrs()); }
 427                 }, 'tr', options.callbackcontext, scope.tableview);
 428             }
 429         }
 430         /** append items in table view mode */
 431         var append_files_table = function() {
 432             if (options.appendonly) {
 433                 fileslist.forEach(function(el) {
 434                     this.tableview.data.add(el);
 435                 },scope);
 436             }
 437             scope.tableview.render(scope.one('.'+classname));
 438             scope.tableview.sortable = options.sortable ? true : false;
 439         };
 440         /** append items in tree view mode */
 441         var append_files_tree = function() {
 442             if (options.appendonly) {
 443                 var parentnode = scope.treeview.getRoot();
 444                 if (scope.treeview.getHighlightedNode()) {
 445                     parentnode = scope.treeview.getHighlightedNode();
 446                     if (parentnode.isLeaf) {parentnode = parentnode.parent;}
 447                 }
 448                 for (var k in fileslist) {
 449                     build_tree(fileslist[k], parentnode);
 450                 }
 451                 scope.treeview.draw();
 452             } else {
 453                 // otherwise files were already added in initialize_tree_view()
 454             }
 455         }
 456         /** append items in icon view mode */
 457         var append_files_icons = function() {
 458             parent = scope.one('.'+classname);
 459             for (var k in fileslist) {
 460                 var node = fileslist[k];
 461                 var element = options.filenode.cloneNode(true);
 462                 parent.appendChild(element);
 463                 element.addClass(options.classnamecallback(node));
 464                 var filenamediv = element.one('.fp-filename');
 465                 filenamediv.setContent(file_get_displayname(node));
 466                 var imgdiv = element.one('.fp-thumbnail'), width, height, src;
 467                 if (node.thumbnail) {
 468                     width = node.thumbnail_width ? node.thumbnail_width : 90;
 469                     height = node.thumbnail_height ? node.thumbnail_height : 90;
 470                     src = node.thumbnail;
 471                 } else {
 472                     width = 16;
 473                     height = 16;
 474                     src = node.icon;
 475                 }
 476                 filenamediv.setStyleAdv('width', width);
 477                 imgdiv.setStyleAdv('width', width).setStyleAdv('height', height);
 478                 var img = Y.Node.create('<img/>').setAttrs({
 479                         title: file_get_description(node),
 480                         alt: Y.Escape.html(node.thumbnail_alt ? node.thumbnail_alt : file_get_filename(node))}).
 481                     setStyle('maxWidth', ''+width+'px').
 482                     setStyle('maxHeight', ''+height+'px');
 483                 img.setImgSrc(src, node.realthumbnail, lazyloading);
 484                 imgdiv.appendChild(img);
 485                 element.on('click', function(e, nd) {
 486                     if (options.rightclickcallback && e.target.ancestor('.fp-iconview .fp-contextmenu', true)) {
 487                         Y.bind(options.rightclickcallback, this)(e, nd);
 488                     } else {
 489                         Y.bind(options.callback, this)(e, nd);
 490                     }
 491                 }, options.callbackcontext, node);
 492                 if (options.rightclickcallback) {
 493                     element.on('contextmenu', options.rightclickcallback, options.callbackcontext, node);
 494                 }
 495             }
 496         }
 497
 498         // Notify the user if any of the files has a problem status.
 499         var problemFiles = [];
 500         fileslist.forEach(function(file) {
 501             if (!file_is_folder(file) && file.hasOwnProperty('status') && file.status != 0) {
 502                 problemFiles.push(file);
 503             }
 504         });
 505         if (problemFiles.length > 0) {
 506             require(["core/notification", "core/str"], function(Notification, Str) {
 507                 problemFiles.forEach(function(problemFile) {
 508                     Str.get_string('storedfilecannotreadfile', 'error', problemFile.fullname).then(function(string) {
 509                         Notification.addNotification({
 510                             message: string,
 511                             type: "error"
 512                         });
 513                         return;
 514                     }).catch(Notification.exception);
 515                 });
 516             });
 517         }
 518
 519         // If table view, need some additional properties
 520         // before passing fileslist to the YUI tableview
 521         if (options.viewmode == 3) {
 522             fileslist.forEach(function(el) {
 523                 el.displayname = file_get_displayname(el);
 524                 el.isfolder = file_is_folder(el);
 525                 el.classname = options.classnamecallback(el);
 526             }, scope);
 527         }
 528
 529         // initialize files view
 530         if (!options.appendonly) {
 531             var parent = Y.Node.create('<div/>').addClass(classname);
 532             this.setContent('').appendChild(parent);
 533             parent.generateID();
 534             if (options.viewmode == 2) {
 535                 initialize_tree_view();
 536             } else if (options.viewmode == 3) {
 537                 initialize_table_view();
 538             } else {
 539                 // nothing to initialize for icon view
 540             }
 541         }
 542
 543         // append files to the list
 544         if (options.viewmode == 2) {
 545             append_files_tree();
 546         } else if (options.viewmode == 3) {
 547             append_files_table();
 548         } else {
 549             append_files_icons();
 550         }
 551
 552     }
 553 }, '@VERSION@', {
 554     requires:['base', 'node', 'yui2-treeview', 'panel', 'cookie', 'datatable', 'datatable-sort']
 555 });
 556
 557 M.core_filepicker = M.core_filepicker || {};
 558
 559 /**
 560  * instances of file pickers used on page
 561  */
 562 M.core_filepicker.instances = M.core_filepicker.instances || {};
 563 M.core_filepicker.active_filepicker = null;
 564
 565 /**
 566  * HTML Templates to use in FilePicker
 567  */
 568 M.core_filepicker.templates = M.core_filepicker.templates || {};
 569
 570 /**
 571  * Array of image sources for real previews (realicon or realthumbnail) that are already loaded
 572  */
 573 M.core_filepicker.loadedpreviews = M.core_filepicker.loadedpreviews || {};
 574
 575 /**
 576 * Set selected file info
 577 *
 578 * @param object file info
 579 */
 580 M.core_filepicker.select_file = function(file) {
 581     M.core_filepicker.active_filepicker.select_file(file);
 582 }
 583
 584 /**
 585  * Init and show file picker
 586  */
 587 M.core_filepicker.show = function(Y, options) {
 588     if (!M.core_filepicker.instances[options.client_id]) {
 589         M.core_filepicker.init(Y, options);
 590     }
 591     M.core_filepicker.instances[options.client_id].options.formcallback = options.formcallback;
 592     M.core_filepicker.instances[options.client_id].show();
 593 };
 594
 595 M.core_filepicker.set_templates = function(Y, templates) {
 596     for (var templid in templates) {
 597         M.core_filepicker.templates[templid] = templates[templid];
 598     }
 599 }
 600
 601 /**
 602  * Add new file picker to current instances
 603  */
 604 M.core_filepicker.init = function(Y, options) {
 605     var FilePickerHelper = function(options) {
 606         FilePickerHelper.superclass.constructor.apply(this, arguments);
 607     };
 608
 609     FilePickerHelper.NAME = "FilePickerHelper";
 610     FilePickerHelper.ATTRS = {
 611         options: {},
 612         lang: {}
 613     };
 614
 615     Y.extend(FilePickerHelper, Y.Base, {
 616         api: M.cfg.wwwroot+'/repository/repository_ajax.php',
 617         cached_responses: {},
 618         waitinterval : null, // When the loading template is being displayed and its animation is running this will be an interval instance.
 619         initializer: function(options) {
 620             this.options = options;
 621             if (!this.options.savepath) {
 622                 this.options.savepath = '/';
 623             }
 624         },
 625
 626         destructor: function() {
 627         },
 628
 629         request: function(args, redraw) {
 630             var api = (args.api ? args.api : this.api) + '?action='+args.action;
 631             var params = {};
 632             var scope = args['scope'] ? args['scope'] : this;
 633             params['repo_id']=args.repository_id;
 634             params['p'] = args.path?args.path:'';
 635             params['page'] = args.page?args.page:'';
 636             params['env']=this.options.env;
 637             // the form element only accept certain file types
 638             params['accepted_types']=this.options.accepted_types;
 639             params['sesskey'] = M.cfg.sesskey;
 640             params['client_id'] = args.client_id;
 641             params['itemid'] = this.options.itemid?this.options.itemid:0;
 642             params['maxbytes'] = this.options.maxbytes?this.options.maxbytes:-1;
 643             // The unlimited value of areamaxbytes is -1, it is defined by FILE_AREA_MAX_BYTES_UNLIMITED.
 644             params['areamaxbytes'] = this.options.areamaxbytes ? this.options.areamaxbytes : -1;
 645             if (this.options.context && this.options.context.id) {
 646                 params['ctx_id'] = this.options.context.id;
 647             }
 648             if (args['params']) {
 649                 for (i in args['params']) {
 650                     params[i] = args['params'][i];
 651                 }
 652             }
 653             if (args.action == 'upload') {
 654                 var list = [];
 655                 for(var k in params) {
 656                     var value = params[k];
 657                     if(value instanceof Array) {
 658                         for(var i in value) {
 659                             list.push(k+'[]='+value[i]);
 660                         }
 661                     } else {
 662                         list.push(k+'='+value);
 663                     }
 664                 }
 665                 params = list.join('&');
 666             } else {
 667                 params = build_querystring(params);
 668             }
 669             var cfg = {
 670                 method: 'POST',
 671                 on: {
 672                     complete: function(id,o,p) {
 673                         var data = null;
 674                         try {
 675                             data = Y.JSON.parse(o.responseText);
 676                         } catch(e) {
 677                             if (o && o.status && o.status > 0) {
 678                                 Y.use('moodle-core-notification-exception', function() {
 679                                     return new M.core.exception(e);
 680                                 });
 681                                 return;
 682                             }
 683                         }
 684                         // error checking
 685                         if (data && data.error) {
 686                             Y.use('moodle-core-notification-ajaxexception', function () {
 687                                 return new M.core.ajaxException(data);
 688                             });
 689                             this.fpnode.one('.fp-content').setContent('');
 690                             return;
 691                         } else {
 692                             if (data.msg) {
 693                                 scope.print_msg(data.msg, 'info');
 694                             }
 695                             // cache result if applicable
 696                             if (args.action != 'upload' && data.allowcaching) {
 697                                 scope.cached_responses[params] = data;
 698                             }
 699                             // invoke callback
 700                             args.callback(id,data,p);
 701                         }
 702                     }
 703                 },
 704                 arguments: {
 705                     scope: scope
 706                 },
 707                 headers: {
 708                     'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'
 709                 },
 710                 data: params,
 711                 context: this
 712             };
 713             if (args.form) {
 714                 cfg.form = args.form;
 715             }
 716             // check if result of the same request has been already cached. If not, request it
 717             // (never applicable in case of form submission and/or upload action):
 718             if (!args.form && args.action != 'upload' && scope.cached_responses[params]) {
 719                 args.callback(null, scope.cached_responses[params], {scope: scope})
 720             } else {
 721                 Y.io(api, cfg);
 722                 if (redraw) {
 723                     this.wait();
 724                 }
 725             }
 726         },
 727         /** displays the dialog and processes rename/overwrite if there is a file with the same name in the same filearea*/
 728         process_existing_file: function(data) {
 729             var scope = this;
 730             var handleOverwrite = function(e) {
 731                 // overwrite
 732                 e.preventDefault();
 733                 var data = this.process_dlg.dialogdata;
 734                 var params = {}
 735                 params['existingfilename'] = data.existingfile.filename;
 736                 params['existingfilepath'] = data.existingfile.filepath;
 737                 params['newfilename'] = data.newfile.filename;
 738                 params['newfilepath'] = data.newfile.filepath;
 739                 this.hide_header();
 740                 this.request({
 741                     'params': params,
 742                     'scope': this,
 743                     'action':'overwrite',
 744                     'path': '',
 745                     'client_id': this.options.client_id,
 746                     'repository_id': this.active_repo.id,
 747                     'callback': function(id, o, args) {
 748                         scope.hide();
 749                         // Add an arbitrary parameter to the URL to force browsers to re-load the new image even
 750                         // if the file name has not changed.
 751                         var urlimage = data.existingfile.url + "?time=" + (new Date()).getTime();
 752                         if (scope.options.editor_target && scope.options.env == 'editor') {
 753                             // editor needs to update url
 754                             scope.options.editor_target.value = urlimage;
 755                             scope.options.editor_target.dispatchEvent(new Event('change'), {'bubbles': true});
 756                         }
 757                         var fileinfo = {'client_id':scope.options.client_id,
 758                             'url': urlimage,
 759                             'file': data.existingfile.filename};
 760                         var formcallback_scope = scope.options.magicscope ? scope.options.magicscope : scope;
 761                         scope.options.formcallback.apply(formcallback_scope, [fileinfo]);
 762                     }
 763                 }, true);
 764             }
 765             var handleRename = function(e) {
 766                 // inserts file with the new name
 767                 e.preventDefault();
 768                 var scope = this;
 769                 var data = this.process_dlg.dialogdata;
 770                 if (scope.options.editor_target && scope.options.env == 'editor') {
 771                     scope.options.editor_target.value = data.newfile.url;
 772                     scope.options.editor_target.dispatchEvent(new Event('change'), {'bubbles': true});
 773                 }
 774                 scope.hide();
 775                 var formcallback_scope = scope.options.magicscope ? scope.options.magicscope : scope;
 776                 var fileinfo = {'client_id':scope.options.client_id,
 777                                 'url':data.newfile.url,
 778                                 'file':data.newfile.filename};
 779                 scope.options.formcallback.apply(formcallback_scope, [fileinfo]);
 780             }
 781             var handleCancel = function(e) {
 782                 // Delete tmp file
 783                 e.preventDefault();
 784                 var params = {};
 785                 params['newfilename'] = this.process_dlg.dialogdata.newfile.filename;
 786                 params['newfilepath'] = this.process_dlg.dialogdata.newfile.filepath;
 787                 this.request({
 788                     'params': params,
 789                     'scope': this,
 790                     'action':'deletetmpfile',
 791                     'path': '',
 792                     'client_id': this.options.client_id,
 793                     'repository_id': this.active_repo.id,
 794                     'callback': function(id, o, args) {
 795                         // let it be in background, from user point of view nothing is happenning
 796                     }
 797                 }, false);
 798                 this.process_dlg.hide();
 799                 this.selectui.hide();
 800             }
 801             if (!this.process_dlg) {
 802                 this.process_dlg_node = Y.Node.create(M.core_filepicker.templates.processexistingfile);
 803                 var node = this.process_dlg_node;
 804                 node.generateID();
 805                 this.process_dlg = new M.core.dialogue({
 806                     draggable    : true,
 807                     bodyContent  : node,
 808                     headerContent: M.util.get_string('fileexistsdialogheader', 'repository'),
 809                     centered     : true,
 810                     modal        : true,
 811                     visible      : false,
 812                     zIndex       : this.options.zIndex
 813                 });
 814                 node.one('.fp-dlg-butoverwrite').on('click', handleOverwrite, this);
 815                 node.one('.fp-dlg-butrename').on('click', handleRename, this);
 816                 node.one('.fp-dlg-butcancel').on('click', handleCancel, this);
 817                 if (this.options.env == 'editor') {
 818                     node.one('.fp-dlg-text').setContent(M.util.get_string('fileexistsdialog_editor', 'repository'));
 819                 } else {
 820                     node.one('.fp-dlg-text').setContent(M.util.get_string('fileexistsdialog_filemanager', 'repository'));
 821                 }
 822             }
 823             this.selectnode.removeClass('loading');
 824             this.process_dlg.dialogdata = data;
 825             this.process_dlg_node.one('.fp-dlg-butrename').setContent(M.util.get_string('renameto', 'repository', data.newfile.filename));
 826             this.process_dlg.show();
 827         },
 828         /** displays error instead of filepicker contents */
 829         display_error: function(errortext, errorcode) {
 830             this.fpnode.one('.fp-content').setContent(M.core_filepicker.templates.error);
 831             this.fpnode.one('.fp-content .fp-error').
 832                 addClass(errorcode).
 833                 setContent(Y.Escape.html(errortext));
 834         },
 835         /** displays message in a popup */
 836         print_msg: function(msg, type) {
 837             var header = M.util.get_string('error', 'moodle');
 838             if (type != 'error') {
 839                 type = 'info'; // one of only two types excepted
 840                 header = M.util.get_string('info', 'moodle');
 841             }
 842             if (!this.msg_dlg) {
 843                 this.msg_dlg_node = Y.Node.create(M.core_filepicker.templates.message);
 844                 this.msg_dlg_node.generateID();
 845
 846                 this.msg_dlg = new M.core.dialogue({
 847                     draggable    : true,
 848                     bodyContent  : this.msg_dlg_node,
 849                     centered     : true,
 850                     modal        : true,
 851                     visible      : false,
 852                     zIndex       : this.options.zIndex
 853                 });
 854                 this.msg_dlg_node.one('.fp-msg-butok').on('click', function(e) {
 855                     e.preventDefault();
 856                     this.msg_dlg.hide();
 857                 }, this);
 858             }
 859
 860             this.msg_dlg.set('headerContent', header);
 861             this.msg_dlg_node.removeClass('fp-msg-info').removeClass('fp-msg-error').addClass('fp-msg-'+type)
 862             this.msg_dlg_node.one('.fp-msg-text').setContent(Y.Escape.html(msg));
 863             this.msg_dlg.show();
 864         },
 865         view_files: function(appenditems) {
 866             this.viewbar_set_enabled(true);
 867             this.print_path();
 868             /*if ((appenditems == null) && (!this.filelist || !this.filelist.length) && !this.active_repo.hasmorepages) {
 869              // TODO do it via classes and adjust for each view mode!
 870                 // If there are no items and no next page, just display status message and quit
 871                 this.display_error(M.util.get_string('nofilesavailable', 'repository'), 'nofilesavailable');
 872                 return;
 873             }*/
 874             if (this.viewmode == 2) {
 875                 this.view_as_list(appenditems);
 876             } else if (this.viewmode == 3) {
 877                 this.view_as_table(appenditems);
 878             } else {
 879                 this.view_as_icons(appenditems);
 880             }
 881             this.fpnode.one('.fp-content').setAttribute('tabindex', '0');
 882             this.fpnode.one('.fp-content').focus();
 883             // display/hide the link for requesting next page
 884             if (!appenditems && this.active_repo.hasmorepages) {
 885                 if (!this.fpnode.one('.fp-content .fp-nextpage')) {
 886                     this.fpnode.one('.fp-content').append(M.core_filepicker.templates.nextpage);
 887                 }
 888                 this.fpnode.one('.fp-content .fp-nextpage').one('a,button').on('click', function(e) {
 889                     e.preventDefault();
 890                     this.fpnode.one('.fp-content .fp-nextpage').addClass('loading');
 891                     this.request_next_page();
 892                 }, this);
 893             }
 894             if (!this.active_repo.hasmorepages && this.fpnode.one('.fp-content .fp-nextpage')) {
 895                 this.fpnode.one('.fp-content .fp-nextpage').remove();
 896             }
 897             if (this.fpnode.one('.fp-content .fp-nextpage')) {
 898                 this.fpnode.one('.fp-content .fp-nextpage').removeClass('loading');
 899             }
 900             this.content_scrolled();
 901         },
 902         content_scrolled: function(e) {
 903             setTimeout(Y.bind(function() {
 904                 if (this.processingimages) {
 905                     return;
 906                 }
 907                 this.processingimages = true;
 908                 var scope = this,
 909                     fpcontent = this.fpnode.one('.fp-content'),
 910                     fpcontenty = fpcontent.getY(),
 911                     fpcontentheight = fpcontent.getStylePx('height'),
 912                     nextpage = fpcontent.one('.fp-nextpage'),
 913                     is_node_visible = function(node) {
 914                         var offset = node.getY()-fpcontenty;
 915                         if (offset <= fpcontentheight && (offset >=0 || offset+node.getStylePx('height')>=0)) {
 916                             return true;
 917                         }
 918                         return false;
 919                     };
 920                 // automatically load next page when 'more' link becomes visible
 921                 if (nextpage && !nextpage.hasClass('loading') && is_node_visible(nextpage)) {
 922                     nextpage.one('a,button').simulate('click');
 923                 }
 924                 // replace src for visible images that need to be lazy-loaded
 925                 if (scope.lazyloading) {
 926                     fpcontent.all('img').each( function(node) {
 927                         if (node.get('id') && scope.lazyloading[node.get('id')] && is_node_visible(node)) {
 928                             node.setImgRealSrc(scope.lazyloading);
 929                         }
 930                     });
 931                 }
 932                 this.processingimages = false;
 933             }, this), 200)
 934         },
 935         treeview_dynload: function(node, cb) {
 936             var retrieved_children = {};
 937             if (node.children) {
 938                 for (var i in node.children) {
 939                     retrieved_children[node.children[i].path] = node.children[i];
 940                 }
 941             }
 942             this.request({
 943                 action:'list',
 944                 client_id: this.options.client_id,
 945                 repository_id: this.active_repo.id,
 946                 path:node.path?node.path:'',
 947                 page:node.page?args.page:'',
 948                 scope:this,
 949                 callback: function(id, obj, args) {
 950                     var list = obj.list;
 951                     var scope = args.scope;
 952                     // check that user did not leave the view mode before recieving this response
 953                     if (!(scope.active_repo.id == obj.repo_id && scope.viewmode == 2 && node && node.getChildrenEl())) {
 954                         return;
 955                     }
 956                     if (cb != null) { // (in manual mode do not update current path)
 957                         scope.viewbar_set_enabled(true);
 958                         scope.parse_repository_options(obj);
 959                     }
 960                     node.highlight(false);
 961                     node.origlist = obj.list ? obj.list : null;
 962                     node.origpath = obj.path ? obj.path : null;
 963                     node.children = [];
 964                     for(k in list) {
 965                         if (list[k].children && retrieved_children[list[k].path]) {
 966                             // if this child is a folder and has already been retrieved
 967                             node.children[node.children.length] = retrieved_children[list[k].path];
 968                         } else {
 969                             // append new file to the list
 970                             scope.view_as_list([list[k]]);
 971                         }
 972                     }
 973                     if (cb == null) {
 974                         node.refresh();
 975                     } else {
 976                         // invoke callback requested by TreeView component
 977                         cb();
 978                     }
 979                     scope.content_scrolled();
 980                 }
 981             }, false);
 982         },
 983        classnamecallback : function(node) {
 984             var classname = '';
 985             if (node.children) {
 986                 classname = classname + ' fp-folder';
 987             }
 988             if (node.isref) {
 989                 classname = classname + ' fp-isreference';
 990             }
 991             if (node.iscontrolledlink) {
 992                 classname = classname + ' fp-iscontrolledlink';
 993             }
 994             if (node.refcount) {
 995                 classname = classname + ' fp-hasreferences';
 996             }
 997             if (node.originalmissing) {
 998                 classname = classname + ' fp-originalmissing';
 999             }
1000             return Y.Lang.trim(classname);
1001         },
1002         /** displays list of files in tree (list) view mode. If param appenditems is specified,
1003          * appends those items to the end of the list. Otherwise (default behaviour)
1004          * clears the contents and displays the items from this.filelist */
1005         view_as_list: function(appenditems) {
1006             var list = (appenditems != null) ? appenditems : this.filelist;
1007             this.viewmode = 2;
1008             if (!this.filelist || this.filelist.length==0 && (!this.filepath || !this.filepath.length)) {
1009                 this.display_error(M.util.get_string('nofilesavailable', 'repository'), 'nofilesavailable');
1010                 return;
1011             }
1012
1013             var element_template = Y.Node.create(M.core_filepicker.templates.listfilename);
1014             var options = {
1015                 viewmode : this.viewmode,
1016                 appendonly : (appenditems != null),
1017                 filenode : element_template,
1018                 callbackcontext : this,
1019                 callback : function(e, node) {
1020                     // TODO MDL-32736 e is not an event here but an object with properties 'event' and 'node'
1021                     if (!node.children) {
1022                         if (e.node.parent && e.node.parent.origpath) {
1023                             // set the current path
1024                             this.filepath = e.node.parent.origpath;
1025                             this.filelist = e.node.parent.origlist;
1026                             this.print_path();
1027                         }
1028                         this.select_file(node);
1029                     } else {
1030                         // save current path and filelist (in case we want to jump to other viewmode)
1031                         this.filepath = e.node.origpath;
1032                         this.filelist = e.node.origlist;
1033                         this.currentpath = e.node.path;
1034                         this.print_path();
1035                         this.content_scrolled();
1036                     }
1037                 },
1038                 classnamecallback : this.classnamecallback,
1039                 dynload : this.active_repo.dynload,
1040                 filepath : this.filepath,
1041                 treeview_dynload : this.treeview_dynload
1042             };
1043             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
1044         },
1045         /** displays list of files in icon view mode. If param appenditems is specified,
1046          * appends those items to the end of the list. Otherwise (default behaviour)
1047          * clears the contents and displays the items from this.filelist */
1048         view_as_icons: function(appenditems) {
1049             this.viewmode = 1;
1050             var list = (appenditems != null) ? appenditems : this.filelist;
1051             var element_template = Y.Node.create(M.core_filepicker.templates.iconfilename);
1052             if ((appenditems == null) && (!this.filelist || !this.filelist.length)) {
1053                 this.display_error(M.util.get_string('nofilesavailable', 'repository'), 'nofilesavailable');
1054                 return;
1055             }
1056             var options = {
1057                 viewmode : this.viewmode,
1058                 appendonly : (appenditems != null),
1059                 filenode : element_template,
1060                 callbackcontext : this,
1061                 callback : function(e, node) {
1062                     if (e.preventDefault) {
1063                         e.preventDefault();
1064                     }
1065                     if(node.children) {
1066                         if (this.active_repo.dynload) {
1067                             this.list({'path':node.path});
1068                         } else {
1069                             this.filelist = node.children;
1070                             this.view_files();
1071                         }
1072                     } else {
1073                         this.select_file(node);
1074                     }
1075                 },
1076                 classnamecallback : this.classnamecallback
1077             };
1078             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
1079         },
1080         /** displays list of files in table view mode. If param appenditems is specified,
1081          * appends those items to the end of the list. Otherwise (default behaviour)
1082          * clears the contents and displays the items from this.filelist */
1083         view_as_table: function(appenditems) {
1084             this.viewmode = 3;
1085             var list = (appenditems != null) ? appenditems : this.filelist;
1086             if (!appenditems && (!this.filelist || this.filelist.length==0) && !this.active_repo.hasmorepages) {
1087                 this.display_error(M.util.get_string('nofilesavailable', 'repository'), 'nofilesavailable');
1088                 return;
1089             }
1090             var element_template = Y.Node.create(M.core_filepicker.templates.listfilename);
1091             var options = {
1092                 viewmode : this.viewmode,
1093                 appendonly : (appenditems != null),
1094                 filenode : element_template,
1095                 callbackcontext : this,
1096                 sortable : !this.active_repo.hasmorepages,
1097                 callback : function(e, node) {
1098                     if (e.preventDefault) {e.preventDefault();}
1099                     if (node.children) {
1100                         if (this.active_repo.dynload) {
1101                             this.list({'path':node.path});
1102                         } else {
1103                             this.filelist = node.children;
1104                             this.view_files();
1105                         }
1106                     } else {
1107                         this.select_file(node);
1108                     }
1109                 },
1110                 classnamecallback : this.classnamecallback
1111             };
1112             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
1113         },
1114         /** If more than one page available, requests and displays the files from the next page */
1115         request_next_page: function() {
1116             if (!this.active_repo.hasmorepages || this.active_repo.nextpagerequested) {
1117                 // nothing to load
1118                 return;
1119             }
1120             this.active_repo.nextpagerequested = true;
1121             var nextpage = this.active_repo.page+1;
1122             var args = {
1123                 page: nextpage,
1124                 repo_id: this.active_repo.id
1125             };
1126             var action = this.active_repo.issearchresult ? 'search' : 'list';
1127             this.request({
1128                 path: this.currentpath,
1129                 scope: this,
1130                 action: action,
1131                 client_id: this.options.client_id,
1132                 repository_id: args.repo_id,
1133                 params: args,
1134                 callback: function(id, obj, args) {
1135                     var scope = args.scope;
1136                     // Check that we are still in the same repository and are expecting this page. We have no way
1137                     // to compare the requested page and the one returned, so we assume that if the last chunk
1138                     // of the breadcrumb is similar, then we probably are on the same page.
1139                     var samepage = true;
1140                     if (obj.path && scope.filepath) {
1141                         var pathbefore = scope.filepath[scope.filepath.length-1];
1142                         var pathafter = obj.path[obj.path.length-1];
1143                         if (pathbefore.path != pathafter.path) {
1144                             samepage = false;
1145                         }
1146                     }
1147                     if (scope.active_repo.hasmorepages && obj.list && obj.page &&
1148                             obj.repo_id == scope.active_repo.id &&
1149                             obj.page == scope.active_repo.page+1 && samepage) {
1150                         scope.parse_repository_options(obj, true);
1151                         scope.view_files(obj.list)
1152                     }
1153                 }
1154             }, false);
1155         },
1156         select_file: function(args) {
1157             var argstitle = args.shorttitle ? args.shorttitle : args.title;
1158             // Limit the string length so it fits nicely on mobile devices
1159             var titlelength = 30;
1160             if (argstitle.length > titlelength) {
1161                 argstitle = argstitle.substring(0, titlelength) + '...';
1162             }
1163             Y.one('#fp-file_label_'+this.options.client_id).setContent(Y.Escape.html(M.util.get_string('select', 'repository')+' '+argstitle));
1164             this.selectui.show();
1165             Y.one('#'+this.selectnode.get('id')).focus();
1166             var client_id = this.options.client_id;
1167             var selectnode = this.selectnode;
1168             var return_types = this.options.repositories[this.active_repo.id].return_types;
1169             selectnode.removeClass('loading');
1170             selectnode.one('.fp-saveas input').set('value', args.title);
1171
1172             var imgnode = Y.Node.create('<img/>').
1173                 set('src', args.realthumbnail ? args.realthumbnail : args.thumbnail).
1174                 setStyle('maxHeight', ''+(args.thumbnail_height ? args.thumbnail_height : 90)+'px').
1175                 setStyle('maxWidth', ''+(args.thumbnail_width ? args.thumbnail_width : 90)+'px');
1176             selectnode.one('.fp-thumbnail').setContent('').appendChild(imgnode);
1177
1178             // filelink is the array of file-link-types available for this repository in this env
1179             var filelinktypes = [2/*FILE_INTERNAL*/,1/*FILE_EXTERNAL*/,4/*FILE_REFERENCE*/,8/*FILE_CONTROLLED_LINK*/];
1180             var filelink = {}, firstfilelink = null, filelinkcount = 0;
1181             for (var i in filelinktypes) {
1182                 var allowed = (return_types & filelinktypes[i]) &&
1183                     (this.options.return_types & filelinktypes[i]);
1184                 if (filelinktypes[i] == 1/*FILE_EXTERNAL*/ && !this.options.externallink && this.options.env == 'editor') {
1185                     // special configuration setting 'repositoryallowexternallinks' may prevent
1186                     // using external links in editor environment
1187                     allowed = false;
1188                 }
1189                 filelink[filelinktypes[i]] = allowed;
1190                 firstfilelink = (firstfilelink==null && allowed) ? filelinktypes[i] : firstfilelink;
1191                 filelinkcount += allowed ? 1 : 0;
1192             }
1193             var defaultreturntype = this.options.repositories[this.active_repo.id].defaultreturntype;
1194             if (defaultreturntype) {
1195                 if (filelink[defaultreturntype]) {
1196                     firstfilelink = defaultreturntype;
1197                 }
1198             }
1199             // make radio buttons enabled if this file-link-type is available and only if there are more than one file-link-type option
1200             // check the first available file-link-type option
1201             for (var linktype in filelink) {
1202                 var el = selectnode.one('.fp-linktype-'+linktype);
1203                 el.addClassIf('uneditable', !(filelink[linktype] && filelinkcount>1));
1204                 el.one('input').set('checked', (firstfilelink == linktype) ? 'checked' : '').simulate('change');
1205             }
1206
1207             // TODO MDL-32532: attributes 'hasauthor' and 'haslicense' need to be obsolete,
1208             selectnode.one('.fp-setauthor input').set('value', args.author ? args.author : this.options.author);
1209             this.populateLicensesSelect(selectnode.one('.fp-setlicense select'), args);
1210             selectnode.one('form #filesource-'+client_id).set('value', args.source);
1211             selectnode.one('form #filesourcekey-'+client_id).set('value', args.sourcekey);
1212
1213             // display static information about a file (when known)
1214             var attrs = ['datemodified','datecreated','size','license','author','dimensions'];
1215             for (var i in attrs) {
1216                 if (selectnode.one('.fp-'+attrs[i])) {
1217                     var value = (args[attrs[i]+'_f']) ? args[attrs[i]+'_f'] : (args[attrs[i]] ? args[attrs[i]] : '');
1218                     selectnode.one('.fp-'+attrs[i]).addClassIf('fp-unknown', ''+value == '')
1219                         .one('.fp-value').setContent(Y.Escape.html(value));
1220                 }
1221             }
1222         },
1223         setup_select_file: function() {
1224             var client_id = this.options.client_id;
1225             var selectnode = this.selectnode;
1226             var getfile = selectnode.one('.fp-select-confirm');
1227             // bind labels with corresponding inputs
1228             selectnode.all('.fp-saveas,.fp-linktype-2,.fp-linktype-1,.fp-linktype-4,fp-linktype-8,.fp-setauthor,.fp-setlicense').each(function (node) {
1229                 node.all('label').set('for', node.one('input,select').generateID());
1230             });
1231             selectnode.one('.fp-linktype-2 input').setAttrs({value: 2, name: 'linktype'});
1232             selectnode.one('.fp-linktype-1 input').setAttrs({value: 1, name: 'linktype'});
1233             selectnode.one('.fp-linktype-4 input').setAttrs({value: 4, name: 'linktype'});
1234             selectnode.one('.fp-linktype-8 input').setAttrs({value: 8, name: 'linktype'});
1235             var changelinktype = function(e) {
1236                 if (e.currentTarget.get('checked')) {
1237                     var allowinputs = e.currentTarget.get('value') != 1/*FILE_EXTERNAL*/;
1238                     selectnode.all('.fp-setauthor,.fp-setlicense,.fp-saveas').each(function(node){
1239                         node.addClassIf('uneditable', !allowinputs);
1240                         node.all('input,select').set('disabled', allowinputs?'':'disabled');
1241                     });
1242                 }
1243             };
1244             selectnode.all('.fp-linktype-2,.fp-linktype-1,.fp-linktype-4,.fp-linktype-8').each(function (node) {
1245                 node.one('input').on('change', changelinktype, this);
1246             });
1247             // register event on clicking submit button
1248             getfile.on('click', function(e) {
1249                 e.preventDefault();
1250                 var client_id = this.options.client_id;
1251                 var scope = this;
1252                 var repository_id = this.active_repo.id;
1253                 var title = selectnode.one('.fp-saveas input').get('value');
1254                 var filesource = selectnode.one('form #filesource-'+client_id).get('value');
1255                 var filesourcekey = selectnode.one('form #filesourcekey-'+client_id).get('value');
1256                 var params = {'title':title, 'source':filesource, 'savepath': this.options.savepath, sourcekey: filesourcekey};
1257                 var license = selectnode.one('.fp-setlicense select');
1258                 if (license) {
1259                     params['license'] = license.get('value');
1260                     var origlicense = selectnode.one('.fp-license .fp-value');
1261                     if (origlicense) {
1262                         origlicense = origlicense.getContent();
1263                     }
1264                     if (this.options.rememberuserlicensepref) {
1265                         this.set_preference('recentlicense', license.get('value'));
1266                     }
1267                 }
1268                 params['author'] = selectnode.one('.fp-setauthor input').get('value');
1269
1270                 var return_types = this.options.repositories[this.active_repo.id].return_types;
1271                 if (this.options.env == 'editor') {
1272                     // in editor, images are stored in '/' only
1273                     params.savepath = '/';
1274                 }
1275                 if ((this.options.externallink || this.options.env != 'editor') &&
1276                             (return_types & 1/*FILE_EXTERNAL*/) &&
1277                             (this.options.return_types & 1/*FILE_EXTERNAL*/) &&
1278                             selectnode.one('.fp-linktype-1 input').get('checked')) {
1279                     params['linkexternal'] = 'yes';
1280                 } else if ((return_types & 4/*FILE_REFERENCE*/) &&
1281                         (this.options.return_types & 4/*FILE_REFERENCE*/) &&
1282                         selectnode.one('.fp-linktype-4 input').get('checked')) {
1283                     params['usefilereference'] = '1';
1284                 } else if ((return_types & 8/*FILE_CONTROLLED_LINK*/) &&
1285                         (this.options.return_types & 8/*FILE_CONTROLLED_LINK*/) &&
1286                         selectnode.one('.fp-linktype-8 input').get('checked')) {
1287                     params['usecontrolledlink'] = '1';
1288                 }
1289
1290                 selectnode.addClass('loading');
1291                 this.request({
1292                     action:'download',
1293                     client_id: client_id,
1294                     repository_id: repository_id,
1295                     'params': params,
1296                     onerror: function(id, obj, args) {
1297                         selectnode.removeClass('loading');
1298                         scope.selectui.hide();
1299                     },
1300                     callback: function(id, obj, args) {
1301                         selectnode.removeClass('loading');
1302                         if (obj.event == 'fileexists') {
1303                             scope.process_existing_file(obj);
1304                             return;
1305                         }
1306                         if (scope.options.editor_target && scope.options.env=='editor') {
1307                             scope.options.editor_target.value=obj.url;
1308                             scope.options.editor_target.dispatchEvent(new Event('change'), {'bubbles': true});
1309                         }
1310                         scope.hide();
1311                         obj.client_id = client_id;
1312                         var formcallback_scope = args.scope.options.magicscope ? args.scope.options.magicscope : args.scope;
1313                         scope.options.formcallback.apply(formcallback_scope, [obj]);
1314                     }
1315                 }, false);
1316             }, this);
1317             var elform = selectnode.one('form');
1318             elform.appendChild(Y.Node.create('<input/>').
1319                 setAttrs({type:'hidden',id:'filesource-'+client_id}));
1320             elform.appendChild(Y.Node.create('<input/>').
1321                 setAttrs({type:'hidden',id:'filesourcekey-'+client_id}));
1322             elform.on('keydown', function(e) {
1323                 if (e.keyCode == 13) {
1324                     getfile.simulate('click');
1325                     e.preventDefault();
1326                 }
1327             }, this);
1328             var cancel = selectnode.one('.fp-select-cancel');
1329             cancel.on('click', function(e) {
1330                 e.preventDefault();
1331                 this.selectui.hide();
1332             }, this);
1333         },
1334         wait: function() {
1335             // First check there isn't already an interval in play, and if there is kill it now.
1336             if (this.waitinterval != null) {
1337                 clearInterval(this.waitinterval);
1338             }
1339             // Prepare the root node we will set content for and the loading template we want to display as a YUI node.
1340             var root = this.fpnode.one('.fp-content');
1341             var content = Y.Node.create(M.core_filepicker.templates.loading).addClass('fp-content-hidden').setStyle('opacity', 0);
1342             var count = 0;
1343             // Initiate an interval, we will have a count which will increment every 100 milliseconds.
1344             // Count 0 - the loading icon will have visibility set to hidden (invisible) and have an opacity of 0 (invisible also)
1345             // Count 5 - the visiblity will be switched to visible but opacity will still be at 0 (inivisible)
1346             // Counts 6 - 15 opacity will be increased by 0.1 making the loading icon visible over the period of a second
1347             // Count 16 - The interval will be cancelled.
1348             var interval = setInterval(function(){
1349                 if (!content || !root.contains(content) || count >= 15) {
1350                     clearInterval(interval);
1351                     return true;
1352                 }
1353                 if (count == 5) {
1354                     content.removeClass('fp-content-hidden');
1355                 } else if (count > 5) {
1356                     var opacity = parseFloat(content.getStyle('opacity'));
1357                     content.setStyle('opacity', opacity + 0.1);
1358                 }
1359                 count++;
1360                 return false;
1361             }, 100);
1362             // Store the wait interval so that we can check it in the future.
1363             this.waitinterval = interval;
1364             // Set the content to the loading template.
1365             root.setContent(content);
1366         },
1367         viewbar_set_enabled: function(mode) {
1368             var viewbar = this.fpnode.one('.fp-viewbar')
1369             if (viewbar) {
1370                 if (mode) {
1371                     viewbar.addClass('enabled').removeClass('disabled');
1372                     this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').setAttribute("aria-disabled", "false");
1373                     this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').setAttribute("tabindex", "");
1374                 } else {
1375                     viewbar.removeClass('enabled').addClass('disabled');
1376                     this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').setAttribute("aria-disabled", "true");
1377                     this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').setAttribute("tabindex", "-1");
1378                 }
1379             }
1380             this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').removeClass('checked');
1381             var modes = {1:'icons', 2:'tree', 3:'details'};
1382             this.fpnode.all('.fp-vb-'+modes[this.viewmode]).addClass('checked');
1383         },
1384         viewbar_clicked: function(e) {
1385             e.preventDefault();
1386             var viewbar = this.fpnode.one('.fp-viewbar')
1387             if (!viewbar || !viewbar.hasClass('disabled')) {
1388                 if (e.currentTarget.hasClass('fp-vb-tree')) {
1389                     this.viewmode = 2;
1390                 } else if (e.currentTarget.hasClass('fp-vb-details')) {
1391                     this.viewmode = 3;
1392                 } else {
1393                     this.viewmode = 1;
1394                 }
1395                 this.viewbar_set_enabled(true)
1396                 this.view_files();
1397                 this.set_preference('recentviewmode', this.viewmode);
1398             }
1399         },
1400         render: function() {
1401             var client_id = this.options.client_id;
1402             var fpid = "filepicker-"+ client_id;
1403             var labelid = 'fp-dialog-label_'+ client_id;
1404             var width = 873;
1405             var draggable = true;
1406             this.fpnode = Y.Node.create(M.core_filepicker.templates.generallayout).
1407                 set('id', 'filepicker-'+client_id).set('aria-labelledby', labelid);
1408
1409             if (this.in_iframe()) {
1410                 width = Math.floor(window.innerWidth * 0.95);
1411                 draggable = false;
1412             }
1413
1414             this.mainui = new M.core.dialogue({
1415                 extraClasses : ['filepicker'],
1416                 draggable    : draggable,
1417                 bodyContent  : this.fpnode,
1418                 headerContent: '<h3 id="'+ labelid +'">'+ M.util.get_string('filepicker', 'repository') +'</h3>',
1419                 centered     : true,
1420                 modal        : true,
1421                 visible      : false,
1422                 width        : width+'px',
1423                 responsiveWidth : 768,
1424                 height       : '558px',
1425                 zIndex       : this.options.zIndex,
1426                 focusOnPreviousTargetAfterHide: true,
1427                 focusAfterHide: this.options.previousActiveElement
1428             });
1429
1430             // create panel for selecting a file (initially hidden)
1431             this.selectnode = Y.Node.create(M.core_filepicker.templates.selectlayout).
1432                 set('id', 'filepicker-select-'+client_id).
1433                 set('aria-live', 'assertive').
1434                 set('role', 'dialog');
1435
1436             var fplabel = 'fp-file_label_'+ client_id;
1437             this.selectui = new M.core.dialogue({
1438                 headerContent: '<h3 id="' + fplabel +'">'+M.util.get_string('select', 'repository')+'</h3>',
1439                 draggable    : true,
1440                 width        : '450px',
1441                 bodyContent  : this.selectnode,
1442                 centered     : true,
1443                 modal        : true,
1444                 visible      : false,
1445                 zIndex       : this.options.zIndex
1446             });
1447             Y.one('#'+this.selectnode.get('id')).setAttribute('aria-labelledby', fplabel);
1448             // event handler for lazy loading of thumbnails and next page
1449             this.fpnode.one('.fp-content').on(['scroll','resize'], this.content_scrolled, this);
1450             // save template for one path element and location of path bar
1451             if (this.fpnode.one('.fp-path-folder')) {
1452                 this.pathnode = this.fpnode.one('.fp-path-folder');
1453                 this.pathbar = this.pathnode.get('parentNode');
1454                 this.pathbar.removeChild(this.pathnode);
1455             }
1456             // assign callbacks for view mode switch buttons
1457             this.fpnode.one('.fp-vb-icons').on('click', this.viewbar_clicked, this);
1458             this.fpnode.one('.fp-vb-tree').on('click', this.viewbar_clicked, this);
1459             this.fpnode.one('.fp-vb-details').on('click', this.viewbar_clicked, this);
1460
1461             // assign callbacks for toolbar links
1462             this.setup_toolbar();
1463             this.setup_select_file();
1464             this.hide_header();
1465
1466             // processing repository listing
1467             // Resort the repositories by sortorder
1468             var sorted_repositories = [];
1469             var i;
1470             for (i in this.options.repositories) {
1471                 sorted_repositories[i] = this.options.repositories[i];
1472             }
1473             sorted_repositories.sort(function(a,b){return a.sortorder-b.sortorder});
1474             // extract one repository template and repeat it for all repositories available,
1475             // set name and icon and assign callbacks
1476             var reponode = this.fpnode.one('.fp-repo');
1477             if (reponode) {
1478                 var list = reponode.get('parentNode');
1479                 list.removeChild(reponode);
1480                 for (i in sorted_repositories) {
1481                     var repository = sorted_repositories[i];
1482                     var h = (parseInt(i) == 0) ? parseInt(i) : parseInt(i) - 1,
1483                         j = (parseInt(i) == Object.keys(sorted_repositories).length - 1) ? parseInt(i) : parseInt(i) + 1;
1484                     var previousrepository = sorted_repositories[h];
1485                     var nextrepository = sorted_repositories[j];
1486                     var node = reponode.cloneNode(true);
1487                     list.appendChild(node);
1488                     node.
1489                         set('id', 'fp-repo-'+client_id+'-'+repository.id).
1490                         on('click', function(e, repository_id) {
1491                             e.preventDefault();
1492                             this.set_preference('recentrepository', repository_id);
1493                             this.hide_header();
1494                             this.list({'repo_id':repository_id});
1495                         }, this /*handler running scope*/, repository.id/*second argument of handler*/);
1496                     node.on('key', function(e, previousrepositoryid, nextrepositoryid, clientid, repositoryid) {
1497                         this.changeHighlightedRepository(e, clientid, repositoryid, previousrepositoryid, nextrepositoryid);
1498                     }, 'down:38,40', this, previousrepository.id, nextrepository.id, client_id, repository.id);
1499                     node.on('key', function(e, repositoryid) {
1500                         e.preventDefault();
1501                         this.set_preference('recentrepository', repositoryid);
1502                         this.hide_header();
1503                         this.list({'repo_id': repositoryid});
1504                     }, 'enter', this, repository.id);
1505                     node.one('.fp-repo-name').setContent(Y.Escape.html(repository.name));
1506                     node.one('.fp-repo-icon').set('src', repository.icon);
1507                     if (i==0) {
1508                         node.addClass('first');
1509                     }
1510                     if (i==sorted_repositories.length-1) {
1511                         node.addClass('last');
1512                     }
1513                     if (i%2) {
1514                         node.addClass('even');
1515                     } else {
1516                         node.addClass('odd');
1517                     }
1518                 }
1519             }
1520             // display error if no repositories found
1521             if (sorted_repositories.length==0) {
1522                 this.display_error(M.util.get_string('norepositoriesavailable', 'repository'), 'norepositoriesavailable')
1523             }
1524             // display repository that was used last time
1525             this.mainui.show();
1526             this.show_recent_repository();
1527         },
1528         /**
1529          * Change the highlighted repository to a new one.
1530          *
1531          * @param  {object} event The key event
1532          * @param  {integer} clientid The client id to identify the repo class.
1533          * @param  {integer} oldrepositoryid The repository id that we are removing the highlight for
1534          * @param  {integer} previousrepositoryid The previous repository id.
1535          * @param  {integer} nextrepositoryid The next repository id.
1536          */
1537         changeHighlightedRepository: function(event, clientid, oldrepositoryid, previousrepositoryid, nextrepositoryid) {
1538             event.preventDefault();
1539             var newrepositoryid = (event.keyCode == '40') ? nextrepositoryid : previousrepositoryid;
1540             this.fpnode.one('#fp-repo-' + clientid + '-' + oldrepositoryid).setAttribute('tabindex', '-1');
1541             this.fpnode.one('#fp-repo-' + clientid + '-' + newrepositoryid)
1542                     .setAttribute('tabindex', '0')
1543                     .focus();
1544         },
1545         parse_repository_options: function(data, appendtolist) {
1546             if (appendtolist) {
1547                 if (data.list) {
1548                     if (!this.filelist) {
1549                         this.filelist = [];
1550                     }
1551                     for (var i in data.list) {
1552                         this.filelist[this.filelist.length] = data.list[i];
1553                     }
1554                 }
1555             } else {
1556                 this.filelist = data.list?data.list:null;
1557                 this.lazyloading = {};
1558             }
1559             this.filepath = data.path?data.path:null;
1560             this.objecttag = data.object?data.object:null;
1561             this.active_repo = {};
1562             this.active_repo.issearchresult = data.issearchresult ? true : false;
1563             this.active_repo.defaultreturntype = data.defaultreturntype?data.defaultreturntype:null;
1564             this.active_repo.dynload = data.dynload?data.dynload:false;
1565             this.active_repo.pages = Number(data.pages?data.pages:null);
1566             this.active_repo.page = Number(data.page?data.page:null);
1567             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))
1568             this.active_repo.id = data.repo_id?data.repo_id:null;
1569             this.active_repo.nosearch = (data.login || data.nosearch); // this is either login form or 'nosearch' attribute set
1570             this.active_repo.norefresh = (data.login || data.norefresh); // this is either login form or 'norefresh' attribute set
1571             this.active_repo.nologin = (data.login || data.nologin); // this is either login form or 'nologin' attribute is set
1572             this.active_repo.logouttext = data.logouttext?data.logouttext:null;
1573             this.active_repo.logouturl = (data.logouturl || '');
1574             this.active_repo.message = (data.message || '');
1575             this.active_repo.help = data.help?data.help:null;
1576             this.active_repo.manage = data.manage?data.manage:null;
1577             this.print_header();
1578         },
1579         print_login: function(data) {
1580             this.parse_repository_options(data);
1581             var client_id = this.options.client_id;
1582             var repository_id = data.repo_id;
1583             var l = this.logindata = data.login;
1584             var loginurl = '';
1585             var action = data['login_btn_action'] ? data['login_btn_action'] : 'login';
1586             var form_id = 'fp-form-'+client_id;
1587
1588             var loginform_node = Y.Node.create(M.core_filepicker.templates.loginform);
1589             loginform_node.one('form').set('id', form_id);
1590             this.fpnode.one('.fp-content').setContent('').appendChild(loginform_node);
1591             var templates = {
1592                 'popup' : loginform_node.one('.fp-login-popup'),
1593                 'textarea' : loginform_node.one('.fp-login-textarea'),
1594                 'select' : loginform_node.one('.fp-login-select'),
1595                 'text' : loginform_node.one('.fp-login-text'),
1596                 'radio' : loginform_node.one('.fp-login-radiogroup'),
1597                 'checkbox' : loginform_node.one('.fp-login-checkbox'),
1598                 'input' : loginform_node.one('.fp-login-input')
1599             };
1600             var container;
1601             for (var i in templates) {
1602                 if (templates[i]) {
1603                     container = templates[i].get('parentNode');
1604                     container.removeChild(templates[i]);
1605                 }
1606             }
1607
1608             for(var k in l) {
1609                 if (templates[l[k].type]) {
1610                     var node = templates[l[k].type].cloneNode(true);
1611                 } else {
1612                     node = templates['input'].cloneNode(true);
1613                 }
1614                 if (l[k].type == 'popup') {
1615                     // submit button
1616                     loginurl = l[k].url;
1617                     var popupbutton = node.one('button');
1618                     popupbutton.on('click', function(e){
1619                         M.core_filepicker.active_filepicker = this;
1620                         window.open(loginurl, 'repo_auth', 'location=0,status=0,width=500,height=300,scrollbars=yes');
1621                         e.preventDefault();
1622                     }, this);
1623                     loginform_node.one('form').on('keydown', function(e) {
1624                         if (e.keyCode == 13) {
1625                             popupbutton.simulate('click');
1626                             e.preventDefault();
1627                         }
1628                     }, this);
1629                     loginform_node.all('.fp-login-submit').remove();
1630                     action = 'popup';
1631                 } else if(l[k].type=='textarea') {
1632                     // textarea element
1633                     if (node.one('label')) {
1634                         node.one('label').set('for', l[k].id).setContent(l[k].label);
1635                     }
1636                     node.one('textarea').setAttrs({id:l[k].id, name:l[k].name});
1637                 } else if(l[k].type=='select') {
1638                     // select element
1639                     if (node.one('label')) {
1640                         node.one('label').set('for', l[k].id).setContent(l[k].label);
1641                     }
1642                     node.one('select').setAttrs({id:l[k].id, name:l[k].name}).setContent('');
1643                     for (i in l[k].options) {
1644                         node.one('select').appendChild(
1645                             Y.Node.create('<option/>').
1646                                 set('value', l[k].options[i].value).
1647                                 setContent(l[k].options[i].label));
1648                     }
1649                 } else if(l[k].type=='radio') {
1650                     // radio input element
1651                     node.all('label').setContent(l[k].label);
1652                     var list = l[k].value.split('|');
1653                     var labels = l[k].value_label.split('|');
1654                     var radionode = null;
1655                     for(var item in list) {
1656                         if (radionode == null) {
1657                             radionode = node.one('.fp-login-radio');
1658                             radionode.one('input').set('checked', 'checked');
1659                         } else {
1660                             var x = radionode.cloneNode(true);
1661                             radionode.insert(x, 'after');
1662                             radionode = x;
1663                             radionode.one('input').set('checked', '');
1664                         }
1665                         radionode.one('input').setAttrs({id:''+l[k].id+item, name:l[k].name,
1666                             type:l[k].type, value:list[item]});
1667                         radionode.all('label').setContent(labels[item]).set('for', ''+l[k].id+item)
1668                     }
1669                     if (radionode == null) {
1670                         node.one('.fp-login-radio').remove();
1671                     }
1672                 } else {
1673                     // input element
1674                     if (node.one('label')) { node.one('label').set('for', l[k].id).setContent(l[k].label) }
1675                     node.one('input').
1676                         set('type', l[k].type).
1677                         set('id', l[k].id).
1678                         set('name', l[k].name).
1679                         set('value', l[k].value?l[k].value:'')
1680                 }
1681                 container.appendChild(node);
1682             }
1683             // custom label text for submit button
1684             if (data['login_btn_label']) {
1685                 loginform_node.all('.fp-login-submit').setContent(data['login_btn_label'])
1686             }
1687             // register button action for login and search
1688             if (action == 'login' || action == 'search') {
1689                 loginform_node.one('.fp-login-submit').on('click', function(e){
1690                     e.preventDefault();
1691                     this.hide_header();
1692                     this.request({
1693                         'scope': this,
1694                         'action':(action == 'search') ? 'search' : 'signin',
1695                         'path': '',
1696                         'client_id': client_id,
1697                         'repository_id': repository_id,
1698                         'form': {id:form_id, upload:false, useDisabled:true},
1699                         'callback': this.display_response
1700                     }, true);
1701                 }, this);
1702             }
1703             // if 'Enter' is pressed in the form, simulate the button click
1704             if (loginform_node.one('.fp-login-submit')) {
1705                 loginform_node.one('form').on('keydown', function(e) {
1706                     if (e.keyCode == 13) {
1707                         loginform_node.one('.fp-login-submit').simulate('click')
1708                         e.preventDefault();
1709                     }
1710                 }, this);
1711             }
1712         },
1713         display_response: function(id, obj, args) {
1714             var scope = args.scope;
1715             // highlight the current repository in repositories list
1716             scope.fpnode.all('.fp-repo.active')
1717                     .removeClass('active')
1718                     .setAttribute('aria-selected', 'false')
1719                     .setAttribute('tabindex', '-1');
1720             scope.fpnode.all('.nav-link')
1721                     .removeClass('active')
1722                     .setAttribute('aria-selected', 'false')
1723                     .setAttribute('tabindex', '-1');
1724             var activenode = scope.fpnode.one('#fp-repo-' + scope.options.client_id + '-' + obj.repo_id);
1725             activenode.addClass('active')
1726                     .setAttribute('aria-selected', 'true')
1727                     .setAttribute('tabindex', '0');
1728             activenode.all('.nav-link').addClass('active');
1729             // add class repository_REPTYPE to the filepicker (for repository-specific styles)
1730             for (var i in scope.options.repositories) {
1731                 scope.fpnode.removeClass('repository_'+scope.options.repositories[i].type)
1732             }
1733             if (obj.repo_id && scope.options.repositories[obj.repo_id]) {
1734                 scope.fpnode.addClass('repository_'+scope.options.repositories[obj.repo_id].type)
1735             }
1736             Y.one('.file-picker .fp-repo-items').focus();
1737
1738             // display response
1739             if (obj.login) {
1740                 scope.viewbar_set_enabled(false);
1741                 scope.print_login(obj);
1742             } else if (obj.upload) {
1743                 scope.viewbar_set_enabled(false);
1744                 scope.parse_repository_options(obj);
1745                 scope.create_upload_form(obj);
1746             } else if (obj.object) {
1747                 M.core_filepicker.active_filepicker = scope;
1748                 scope.viewbar_set_enabled(false);
1749                 scope.parse_repository_options(obj);
1750                 scope.create_object_container(obj.object);
1751             } else if (obj.list) {
1752                 scope.viewbar_set_enabled(true);
1753                 scope.parse_repository_options(obj);
1754                 scope.view_files();
1755             }
1756         },
1757         list: function(args) {
1758             if (!args) {
1759                 args = {};
1760             }
1761             if (!args.repo_id) {
1762                 args.repo_id = this.active_repo.id;
1763             }
1764             if (!args.path) {
1765                 args.path = '';
1766             }
1767             this.currentpath = args.path;
1768             this.request({
1769                 action: 'list',
1770                 client_id: this.options.client_id,
1771                 repository_id: args.repo_id,
1772                 path: args.path,
1773                 page: args.page,
1774                 scope: this,
1775                 callback: this.display_response
1776             }, true);
1777         },
1778         populateLicensesSelect: function(licensenode, filenode) {
1779             if (!licensenode) {
1780                 return;
1781             }
1782             licensenode.setContent('');
1783             var selectedlicense = this.options.defaultlicense;
1784             if (filenode) {
1785                 // File has a license already, use it.
1786                 selectedlicense = filenode.license;
1787             } else if (this.options.rememberuserlicensepref) {
1788                 selectedlicense = this.get_preference('recentlicense');
1789             }
1790             var licenses = this.options.licenses;
1791             for (var i in licenses) {
1792                 // Include the file's current license, even if not enabled, to prevent displaying
1793                 // misleading information about which license the file currently has assigned to it.
1794                 if (licenses[i].enabled == true || (filenode !== undefined && licenses[i].shortname === filenode.license)) {
1795                     var option = Y.Node.create('<option/>').
1796                     set('selected', (licenses[i].shortname == selectedlicense)).
1797                     set('value', licenses[i].shortname).
1798                     setContent(Y.Escape.html(licenses[i].fullname));
1799                     licensenode.appendChild(option);
1800                 }
1801             }
1802         },
1803         create_object_container: function(data) {
1804             var content = this.fpnode.one('.fp-content');
1805             content.setContent('');
1806             //var str = '<object data="'+data.src+'" type="'+data.type+'" width="98%" height="98%" id="container_object" class="fp-object-container mdl-align"></object>';
1807             var container = Y.Node.create('<object/>').
1808                 setAttrs({data:data.src, type:data.type, id:'container_object'}).
1809                 addClass('fp-object-container');
1810             content.setContent('').appendChild(container);
1811         },
1812         create_upload_form: function(data) {
1813             var client_id = this.options.client_id;
1814             var id = data.upload.id+'_'+client_id;
1815             var content = this.fpnode.one('.fp-content');
1816             var template_name = 'uploadform_'+this.options.repositories[data.repo_id].type;
1817             var template = M.core_filepicker.templates[template_name] || M.core_filepicker.templates['uploadform'];
1818             content.setContent(template);
1819
1820             content.all('.fp-file,.fp-saveas,.fp-setauthor,.fp-setlicense').each(function (node) {
1821                 node.all('label').set('for', node.one('input,select').generateID());
1822             });
1823             content.one('form').set('id', id);
1824             content.one('.fp-file input').set('name', 'repo_upload_file');
1825             if (data.upload.label && content.one('.fp-file label')) {
1826                 content.one('.fp-file label').setContent(data.upload.label);
1827             }
1828             content.one('.fp-saveas input').set('name', 'title');
1829             content.one('.fp-setauthor input').setAttrs({name:'author', value:this.options.author});
1830             content.one('.fp-setlicense select').set('name', 'license');
1831             this.populateLicensesSelect(content.one('.fp-setlicense select'));
1832             // append hidden inputs to the upload form
1833             content.one('form').appendChild(Y.Node.create('<input/>').
1834                 setAttrs({type:'hidden',name:'itemid',value:this.options.itemid}));
1835             var types = this.options.accepted_types;
1836             for (var i in types) {
1837                 content.one('form').appendChild(Y.Node.create('<input/>').
1838                     setAttrs({type:'hidden',name:'accepted_types[]',value:types[i]}));
1839             }
1840
1841             var scope = this;
1842             content.one('.fp-upload-btn').on('click', function(e) {
1843                 e.preventDefault();
1844                 var license = content.one('.fp-setlicense select');
1845
1846                 if (this.options.rememberuserlicensepref) {
1847                     this.set_preference('recentlicense', license.get('value'));
1848                 }
1849                 if (!content.one('.fp-file input').get('value')) {
1850                     scope.print_msg(M.util.get_string('nofilesattached', 'repository'), 'error');
1851                     return false;
1852                 }
1853                 this.hide_header();
1854                 scope.request({
1855                         scope: scope,
1856                         action:'upload',
1857                         client_id: client_id,
1858                         params: {'savepath':scope.options.savepath},
1859                         repository_id: scope.active_repo.id,
1860                         form: {id: id, upload:true},
1861                         onerror: function(id, o, args) {
1862                             scope.create_upload_form(data);
1863                         },
1864                         callback: function(id, o, args) {
1865                             if (o.event == 'fileexists') {
1866                                 scope.create_upload_form(data);
1867                                 scope.process_existing_file(o);
1868                                 return;
1869                             }
1870                             if (scope.options.editor_target&&scope.options.env=='editor') {
1871                                 scope.options.editor_target.value=o.url;
1872                                 scope.options.editor_target.dispatchEvent(new Event('change'), {'bubbles': true});
1873                             }
1874                             scope.hide();
1875                             o.client_id = client_id;
1876                             var formcallback_scope = args.scope.options.magicscope ? args.scope.options.magicscope : args.scope;
1877                             scope.options.formcallback.apply(formcallback_scope, [o]);
1878                         }
1879                 }, true);
1880             }, this);
1881         },
1882         /** setting handlers and labels for elements in toolbar. Called once during the initial render of filepicker */
1883         setup_toolbar: function() {
1884             var client_id = this.options.client_id;
1885             var toolbar = this.fpnode.one('.fp-toolbar');
1886             toolbar.one('.fp-tb-logout').one('a,button').on('click', function(e) {
1887                 e.preventDefault();
1888                 if (!this.active_repo.nologin) {
1889                     this.hide_header();
1890                     this.request({
1891                         action:'logout',
1892                         client_id: this.options.client_id,
1893                         repository_id: this.active_repo.id,
1894                         path:'',
1895                         callback: this.display_response
1896                     }, true);
1897                 }
1898                 if (this.active_repo.logouturl) {
1899                     window.open(this.active_repo.logouturl, 'repo_auth', 'location=0,status=0,width=500,height=300,scrollbars=yes');
1900                 }
1901             }, this);
1902             toolbar.one('.fp-tb-refresh').one('a,button').on('click', function(e) {
1903                 e.preventDefault();
1904                 if (!this.active_repo.norefresh) {
1905                     this.list({ path: this.currentpath });
1906                 }
1907             }, this);
1908             toolbar.one('.fp-tb-search form').
1909                 set('method', 'POST').
1910                 set('id', 'fp-tb-search-'+client_id).
1911                 on('submit', function(e) {
1912                     e.preventDefault();
1913                     if (!this.active_repo.nosearch) {
1914                         this.request({
1915                             scope: this,
1916                             action:'search',
1917                             client_id: this.options.client_id,
1918                             repository_id: this.active_repo.id,
1919                             form: {id: 'fp-tb-search-'+client_id, upload:false, useDisabled:true},
1920                             callback: this.display_response
1921                         }, true);
1922                     }
1923             }, this);
1924
1925             // it does not matter what kind of element is .fp-tb-manage, we create a dummy <a>
1926             // element and use it to open url on click event
1927             var managelnk = Y.Node.create('<a/>').
1928                 setAttrs({id:'fp-tb-manage-'+client_id+'-link', target:'_blank'}).
1929                 setStyle('display', 'none');
1930             toolbar.append(managelnk);
1931             toolbar.one('.fp-tb-manage').one('a,button').
1932                 on('click', function(e) {
1933                     e.preventDefault();
1934                     managelnk.simulate('click')
1935                 });
1936
1937             // same with .fp-tb-help
1938             var helplnk = Y.Node.create('<a/>').
1939                 setAttrs({id:'fp-tb-help-'+client_id+'-link', target:'_blank'}).
1940                 setStyle('display', 'none');
1941             toolbar.append(helplnk);
1942             toolbar.one('.fp-tb-help').one('a,button').
1943                 on('click', function(e) {
1944                     e.preventDefault();
1945                     helplnk.simulate('click')
1946                 });
1947         },
1948         hide_header: function() {
1949             if (this.fpnode.one('.fp-toolbar')) {
1950                 this.fpnode.one('.fp-toolbar').addClass('empty');
1951             }
1952             if (this.pathbar) {
1953                 this.pathbar.setContent('').addClass('empty');
1954             }
1955         },
1956         print_header: function() {
1957             var r = this.active_repo;
1958             var scope = this;
1959             var client_id = this.options.client_id;
1960             this.hide_header();
1961             this.print_path();
1962             var toolbar = this.fpnode.one('.fp-toolbar');
1963             if (!toolbar) { return; }
1964
1965             var enable_tb_control = function(node, enabled) {
1966                 if (!node) { return; }
1967                 node.addClassIf('disabled', !enabled).addClassIf('enabled', enabled)
1968                 if (enabled) {
1969                     toolbar.removeClass('empty');
1970                 }
1971             }
1972
1973             // TODO 'back' permanently disabled for now. Note, flickr_public uses 'Logout' for it!
1974             enable_tb_control(toolbar.one('.fp-tb-back'), false);
1975
1976             // search form
1977             enable_tb_control(toolbar.one('.fp-tb-search'), !r.nosearch);
1978             if(!r.nosearch) {
1979                 var searchform = toolbar.one('.fp-tb-search form');
1980                 searchform.setContent('');
1981                 this.request({
1982                     scope: this,
1983                     action:'searchform',
1984                     repository_id: this.active_repo.id,
1985                     callback: function(id, obj, args) {
1986                         if (obj.repo_id == scope.active_repo.id && obj.form) {
1987                             // if we did not jump to another repository meanwhile
1988                             searchform.setContent(obj.form);
1989                             // Highlight search text when user click for search.
1990                             var searchnode = searchform.one('input[name="s"]');
1991                             if (searchnode) {
1992                                 searchnode.once('click', function(e) {
1993                                     e.preventDefault();
1994                                     this.select();
1995                                 });
1996                             }
1997                         }
1998                     }
1999                 }, false);
2000             }
2001
2002             // refresh button
2003             // weather we use cache for this instance, this button will reload listing anyway
2004             enable_tb_control(toolbar.one('.fp-tb-refresh'), !r.norefresh);
2005
2006             // login button
2007             enable_tb_control(toolbar.one('.fp-tb-logout'), !r.nologin);
2008
2009             // manage url
2010             enable_tb_control(toolbar.one('.fp-tb-manage'), r.manage);
2011             Y.one('#fp-tb-manage-'+client_id+'-link').set('href', r.manage);
2012
2013             // help url
2014             enable_tb_control(toolbar.one('.fp-tb-help'), r.help);
2015             Y.one('#fp-tb-help-'+client_id+'-link').set('href', r.help);
2016
2017             // message
2018             enable_tb_control(toolbar.one('.fp-tb-message'), r.message);
2019             toolbar.one('.fp-tb-message').setContent(r.message);
2020         },
2021         print_path: function() {
2022             if (!this.pathbar) {
2023                 return;
2024             }
2025             this.pathbar.setContent('').addClass('empty');
2026             var p = this.filepath;
2027             if (p && p.length!=0 && this.viewmode != 2) {
2028                 for(var i = 0; i < p.length; i++) {
2029                     var el = this.pathnode.cloneNode(true);
2030                     this.pathbar.appendChild(el);
2031                     if (i == 0) {
2032                         el.addClass('first');
2033                     }
2034                     if (i == p.length-1) {
2035                         el.addClass('last');
2036                     }
2037                     if (i%2) {
2038                         el.addClass('even');
2039                     } else {
2040                         el.addClass('odd');
2041                     }
2042                     el.all('.fp-path-folder-name').setContent(Y.Escape.html(p[i].name));
2043                     el.on('click',
2044                             function(e, path) {
2045                                 e.preventDefault();
2046                                 this.list({'path':path});
2047                             },
2048                         this, p[i].path);
2049                 }
2050                 this.pathbar.removeClass('empty');
2051             }
2052         },
2053         hide: function() {
2054             this.selectui.hide();
2055             if (this.process_dlg) {
2056                 this.process_dlg.hide();
2057             }
2058             if (this.msg_dlg) {
2059                 this.msg_dlg.hide();
2060             }
2061             this.mainui.hide();
2062         },
2063         show: function() {
2064             if (this.fpnode) {
2065                 this.hide();
2066                 this.mainui.show();
2067                 this.show_recent_repository();
2068             } else {
2069                 this.launch();
2070             }
2071         },
2072         launch: function() {
2073             this.render();
2074         },
2075         show_recent_repository: function() {
2076             this.hide_header();
2077             this.viewbar_set_enabled(false);
2078             var repository_id = this.get_preference('recentrepository');
2079             this.viewmode = this.get_preference('recentviewmode');
2080             if (this.viewmode != 2 && this.viewmode != 3) {
2081                 this.viewmode = 1;
2082             }
2083             if (this.options.repositories[repository_id]) {
2084                 this.list({'repo_id':repository_id});
2085             }
2086         },
2087         get_preference: function (name) {
2088             if (this.options.userprefs[name]) {
2089                 return this.options.userprefs[name];
2090             } else {
2091                 return false;
2092             }
2093         },
2094         set_preference: function(name, value) {
2095             if (this.options.userprefs[name] != value) {
2096                 M.util.set_user_preference('filepicker_' + name, value);
2097                 this.options.userprefs[name] = value;
2098             }
2099         },
2100         in_iframe: function () {
2101             // If we're not the top window then we're in an iFrame
2102             return window.self !== window.top;
2103         }
2104     });
2105     var loading = Y.one('#filepicker-loading-'+options.client_id);
2106     if (loading) {
2107         loading.setStyle('display', 'none');
2108     }
2109     M.core_filepicker.instances[options.client_id] = new FilePickerHelper(options);
2110 };