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  *
  20  * Filepicker options:
  21  * =====
  22  * this.options.client_id, the instance id
  23  * this.options.contextid
  24  * this.options.itemid
  25  * this.options.repositories, stores all repositories displaied in file picker
  26  * this.options.formcallback
  27  *
  28  * Active repository options
  29  * =====
  30  * this.active_repo.id
  31  * this.active_repo.nosearch
  32  * this.active_repo.norefresh
  33  * this.active_repo.nologin
  34  * this.active_repo.help
  35  * this.active_repo.manage
  36  *
  37  * Server responses
  38  * =====
  39  * this.filelist, cached filelist
  40  * this.pages
  41  * this.page
  42  * this.filepath, current path
  43  * this.logindata, cached login form
  44  */
  45
  46 YUI.add('moodle-core_filepicker', function(Y) {
  47     /** help function to extract width/height style as a number, not as a string */
  48     Y.Node.prototype.getStylePx = function(attr) {
  49         var style = this.getStyle(attr);
  50         if (''+style == '0' || ''+style == '0px') {
  51             return 0;
  52         }
  53         var matches = style.match(/^([\d\.]+)px$/)
  54         if (matches && parseFloat(matches[1])) {
  55             return parseFloat(matches[1]);
  56         }
  57         return null;
  58     }
  59
  60     /** if condition is met, the class is added to the node, otherwise - removed */
  61     Y.Node.prototype.addClassIf = function(className, condition) {
  62         if (condition) {
  63             this.addClass(className);
  64         } else {
  65             this.removeClass(className);
  66         }
  67         return this;
  68     }
  69
  70     /** sets the width(height) of the node considering existing minWidth(minHeight) */
  71     Y.Node.prototype.setStyleAdv = function(stylename, value) {
  72         var stylenameCap = stylename.substr(0,1).toUpperCase() + stylename.substr(1, stylename.length-1).toLowerCase();
  73         this.setStyle(stylename, '' + Math.max(value, this.getStylePx('min'+stylenameCap)) + 'px')
  74         return this;
  75     }
  76
  77     /** set image source to src, if there is preview, remember it in lazyloading.
  78      *  If there is a preview and it was already loaded, use it. */
  79     Y.Node.prototype.setImgSrc = function(src, realsrc, lazyloading) {
  80         if (realsrc) {
  81             if (M.core_filepicker.loadedpreviews[realsrc]) {
  82                 this.set('src', realsrc).addClass('realpreview');
  83                 return this;
  84             } else {
  85                 if (!this.get('id')) {
  86                     this.generateID();
  87                 }
  88                 lazyloading[this.get('id')] = realsrc;
  89             }
  90         }
  91         this.set('src', src);
  92         return this;
  93     }
  94
  95     /**
  96      * Replaces the image source with preview. If the image is inside the treeview, we need
  97      * also to update the html property of corresponding YAHOO.widget.HTMLNode
  98      * @param array lazyloading array containing associations of imgnodeid->realsrc
  99      */
 100     Y.Node.prototype.setImgRealSrc = function(lazyloading) {
 101         if (this.get('id') && lazyloading[this.get('id')]) {
 102             var newsrc = lazyloading[this.get('id')];
 103             M.core_filepicker.loadedpreviews[newsrc] = true;
 104             this.set('src', newsrc).addClass('realpreview');
 105             delete lazyloading[this.get('id')];
 106             var treenode = this.ancestor('.fp-treeview')
 107             if (treenode && treenode.get('parentNode').treeview) {
 108                 treenode.get('parentNode').treeview.getRoot().refreshPreviews(this.get('id'), newsrc);
 109             }
 110         }
 111         return this;
 112     }
 113
 114     /** scan TreeView to find which node contains image with id=imgid and replace it's html
 115      * with the new image source. */
 116     YAHOO.widget.Node.prototype.refreshPreviews = function(imgid, newsrc, regex) {
 117         if (!regex) {
 118             regex = new RegExp("<img\\s[^>]*id=\""+imgid+"\"[^>]*?(/?)>", "im");
 119         }
 120         if (this.expanded || this.isLeaf) {
 121             var html = this.getContentHtml();
 122             if (html && this.setHtml && regex.test(html)) {
 123                 var newhtml = this.html.replace(regex, "<img id=\""+imgid+"\" src=\""+newsrc+"\" class=\"realpreview\"$1>", html);
 124                 this.setHtml(newhtml);
 125                 return true;
 126             }
 127             if (!this.isLeaf && this.children) {
 128                 for(var c in this.children) {
 129                     if (this.children[c].refreshPreviews(imgid, newsrc, regex)) {
 130                         return true;
 131                     }
 132                 }
 133             }
 134         }
 135         return false;
 136     }
 137
 138     /**
 139      * Displays a list of files (used by filepicker, filemanager) inside the Node
 140      *
 141      * @param array options
 142      *   viewmode : 1 - icons, 2 - tree, 3 - table
 143      *   appendonly : whether fileslist need to be appended instead of replacing the existing content
 144      *   filenode : Node element that contains template for displaying one file
 145      *   callback : On click callback. The element of the fileslist array will be passed as argument
 146      *   rightclickcallback : On right click callback (optional).
 147      *   callbackcontext : context where callbacks are executed
 148      *   sortable : whether content may be sortable (in table mode)
 149      *   dynload : allow dynamic load for tree view
 150      *   filepath : for pre-building of tree view - the path to the current directory in filepicker format
 151      *   treeview_dynload : callback to function to dynamically load the folder in tree view
 152      *   classnamecallback : callback to function that returns the class name for an element
 153      * @param array fileslist array of files to show, each array element may have attributes:
 154      *   title or fullname : file name
 155      *   shorttitle (optional) : display file name
 156      *   thumbnail : url of image
 157      *   icon : url of icon image
 158      *   thumbnail_width : width of thumbnail, default 90
 159      *   thumbnail_height : height of thumbnail, default 90
 160      *   thumbnail_alt : TODO not needed!
 161      *   description or thumbnail_title : alt text
 162      * @param array lazyloading : reference to the array with lazy loading images
 163      */
 164     Y.Node.prototype.fp_display_filelist = function(options, fileslist, lazyloading) {
 165         var viewmodeclassnames = {1:'fp-iconview', 2:'fp-treeview', 3:'fp-tableview'};
 166         var classname = viewmodeclassnames[options.viewmode];
 167         var scope = this;
 168         /** return whether file is a folder (different attributes in FileManager and FilePicker) */
 169         var file_is_folder = function(node) {
 170             if (node.children) {return true;}
 171             if (node.type && node.type == 'folder') {return true;}
 172             return false;
 173         };
 174         /** return the name of the file (different attributes in FileManager and FilePicker) */
 175         var file_get_filename = function(node) {
 176             return node.title ? node.title : node.fullname;
 177         }
 178         /** return display name of the file (different attributes in FileManager and FilePicker) */
 179         var file_get_displayname = function(node) {
 180             return node.shorttitle ? node.shorttitle : file_get_filename(node);
 181         }
 182         /** return file description (different attributes in FileManager and FilePicker) */
 183         var file_get_description = function(node) {
 184             return node.description ? node.description : (node.thumbnail_title ? node.thumbnail_title : file_get_filename(node));
 185         }
 186         /** help funciton for tree view */
 187         var build_tree = function(node, level) {
 188             // prepare file name with icon
 189             var el = Y.Node.create('<div/>');
 190             el.appendChild(options.filenode.cloneNode(true));
 191
 192             el.one('.fp-filename').setContent(file_get_displayname(node));
 193             // TODO add tooltip with node.title or node.thumbnail_title
 194             var tmpnodedata = {className:options.classnamecallback(node)};
 195             el.get('children').addClass(tmpnodedata.className);
 196             if (node.icon) {
 197                 el.one('.fp-icon').appendChild(Y.Node.create('<img/>'));
 198                 el.one('.fp-icon img').setImgSrc(node.icon, node.realicon, lazyloading);
 199             }
 200             // create node
 201             tmpnodedata.html = el.getContent();
 202             var tmpNode = new YAHOO.widget.HTMLNode(tmpnodedata, level, false);
 203             if (node.dynamicLoadComplete) {
 204                 tmpNode.dynamicLoadComplete = true;
 205             }
 206             tmpNode.fileinfo = node;
 207             tmpNode.isLeaf = !file_is_folder(node);
 208             if (!tmpNode.isLeaf) {
 209                 if(node.expanded) {
 210                     tmpNode.expand();
 211                 }
 212                 tmpNode.path = node.path ? node.path : (node.filepath ? node.filepath : '');
 213                 for(var c in node.children) {
 214                     build_tree(node.children[c], tmpNode);
 215                 }
 216             }
 217         };
 218         /** initialize tree view */
 219         var initialize_tree_view = function() {
 220             var parentid = scope.one('.'+classname).get('id');
 221             // TODO MDL-32736 use YUI3 gallery TreeView
 222             scope.treeview = new YAHOO.widget.TreeView(parentid);
 223             if (options.dynload) {
 224                 scope.treeview.setDynamicLoad(Y.bind(options.treeview_dynload, options.callbackcontext), 1);
 225             }
 226             scope.treeview.singleNodeHighlight = true;
 227             if (options.filepath && options.filepath.length) {
 228                 // we just jumped from icon/details view, we need to show all parents
 229                 // we extract as much information as possible from filepath and filelist
 230                 // and send additional requests to retrieve siblings for parent folders
 231                 var mytree = {};
 232                 var mytreeel = null;
 233                 for (var i in options.filepath) {
 234                     if (mytreeel == null) {
 235                         mytreeel = mytree;
 236                     } else {
 237                         mytreeel.children = [{}];
 238                         mytreeel = mytreeel.children[0];
 239                     }
 240                     var pathelement = options.filepath[i];
 241                     mytreeel.path = pathelement.path;
 242                     mytreeel.title = pathelement.name;
 243                     mytreeel.icon = pathelement.icon;
 244                     mytreeel.dynamicLoadComplete = true; // we will call it manually
 245                     mytreeel.expanded = true;
 246                 }
 247                 mytreeel.children = fileslist;
 248                 build_tree(mytree, scope.treeview.getRoot());
 249                 // manually call dynload for parent elements in the tree so we can load other siblings
 250                 if (options.dynload) {
 251                     var root = scope.treeview.getRoot();
 252                     while (root && root.children && root.children.length) {
 253                         root = root.children[0];
 254                         if (root.path == mytreeel.path) {
 255                             root.origpath = options.filepath;
 256                             root.origlist = fileslist;
 257                         } else if (!root.isLeaf && root.expanded) {
 258                             Y.bind(options.treeview_dynload, options.callbackcontext)(root, null);
 259                         }
 260                     }
 261                 }
 262             } else {
 263                 // there is no path information, just display all elements as a list, without hierarchy
 264                 for(k in fileslist) {
 265                     build_tree(fileslist[k], scope.treeview.getRoot());
 266                 }
 267             }
 268             scope.treeview.subscribe('clickEvent', function(e){
 269                 e.node.highlight(false);
 270                 var callback = options.callback;
 271                 if (options.rightclickcallback && e.event.target &&
 272                         Y.Node(e.event.target).ancestor('.fp-treeview .fp-contextmenu', true)) {
 273                     callback = options.rightclickcallback;
 274                 }
 275                 Y.bind(callback, options.callbackcontext)(e, e.node.fileinfo);
 276                 YAHOO.util.Event.stopEvent(e.event)
 277             });
 278             // TODO MDL-32736 support right click
 279             /*if (options.rightclickcallback) {
 280                 scope.treeview.subscribe('dblClickEvent', function(e){
 281                     e.node.highlight(false);
 282                     Y.bind(options.rightclickcallback, options.callbackcontext)(e, e.node.fileinfo);
 283                 });
 284             }*/
 285             scope.treeview.draw();
 286         };
 287         /** formatting function for table view */
 288         var formatValue = function (o){
 289             if (o.data[''+o.column.key+'_f_s']) {return o.data[''+o.column.key+'_f_s'];}
 290             else if (o.data[''+o.column.key+'_f']) {return o.data[''+o.column.key+'_f'];}
 291             else if (o.value) {return o.value;}
 292             else {return '';}
 293         };
 294         /** formatting function for table view */
 295         var formatTitle = function(o) {
 296             var el = Y.Node.create('<div/>');
 297             el.appendChild(options.filenode.cloneNode(true)); // TODO not node but string!
 298             el.get('children').addClass(o.data['classname']);
 299             el.one('.fp-filename').setContent(o.value);
 300             if (o.data['icon']) {
 301                 el.one('.fp-icon').appendChild(Y.Node.create('<img/>'));
 302                 el.one('.fp-icon img').setImgSrc(o.data['icon'], o.data['realicon'], lazyloading);
 303             }
 304             if (options.rightclickcallback) {
 305                 el.get('children').addClass('fp-hascontextmenu');
 306             }
 307             // TODO add tooltip with o.data['title'] (o.value) or o.data['thumbnail_title']
 308             return el.getContent();
 309         }
 310         /** sorting function for table view */
 311         var sortFoldersFirst = function(a, b, desc) {
 312             if (a.get('isfolder') && !b.get('isfolder')) {
 313                 return -1;
 314             }
 315             if (!a.get('isfolder') && b.get('isfolder')) {
 316                 return 1;
 317             }
 318             var aa = a.get(this.key), bb = b.get(this.key), dir = desc ? -1 : 1;
 319             return (aa > bb) ? dir : ((aa < bb) ? -dir : 0);
 320         }
 321         /** initialize table view */
 322         var initialize_table_view = function() {
 323             var parentid = scope.one('.'+classname).get('id');
 324             var cols = [
 325                 {key: "displayname", label: M.str.moodle.name, allowHTML: true, formatter: formatTitle,
 326                     sortable: true, sortFn: sortFoldersFirst},
 327                 {key: "datemodified", label: M.str.moodle.lastmodified, allowHTML: true, formatter: formatValue,
 328                     sortable: true, sortFn: sortFoldersFirst},
 329                 {key: "size", label: M.str.repository.size, allowHTML: true, formatter: formatValue,
 330                     sortable: true, sortFn: sortFoldersFirst},
 331                 {key: "mimetype", label: M.str.repository.type, allowHTML: true,
 332                     sortable: true, sortFn: sortFoldersFirst}
 333             ];
 334             scope.tableview = new Y.DataTable({columns: cols});
 335             scope.tableview.render('#'+parentid);
 336             scope.tableview.delegate('click', function (e, tableview) {
 337                 var record = tableview.getRecord(e.currentTarget.get('id'));
 338                 if (record) {
 339                     var callback = options.callback;
 340                     if (options.rightclickcallback && e.target.ancestor('.fp-tableview .fp-contextmenu', true)) {
 341                         callback = options.rightclickcallback;
 342                     }
 343                     Y.bind(callback, this)(e, record.getAttrs());
 344                 }
 345             }, 'tr', options.callbackcontext, scope.tableview);
 346             if (options.rightclickcallback) {
 347                 scope.tableview.delegate('contextmenu', function (e, tableview) {
 348                     var record = tableview.getRecord(e.currentTarget.get('id'));
 349                     if (record) { Y.bind(options.rightclickcallback, this)(e, record.getAttrs()); }
 350                 }, 'tr', options.callbackcontext, scope.tableview);
 351             }
 352         }
 353         /** append items in table view mode */
 354         var append_files_table = function() {
 355             for (var k in fileslist) {
 356                 // to speed up sorting and formatting
 357                 fileslist[k].displayname = file_get_displayname(fileslist[k]);
 358                 fileslist[k].isfolder = file_is_folder(fileslist[k]);
 359                 fileslist[k].classname = options.classnamecallback(fileslist[k]);
 360             }
 361             scope.tableview.addRows(fileslist);
 362             scope.tableview.sortable = options.sortable ? true : false;
 363         };
 364         /** append items in tree view mode */
 365         var append_files_tree = function() {
 366             if (options.appendonly) {
 367                 var parentnode = scope.treeview.getRoot();
 368                 if (scope.treeview.getHighlightedNode()) {
 369                     parentnode = scope.treeview.getHighlightedNode();
 370                     if (parentnode.isLeaf) {parentnode = parentnode.parent;}
 371                 }
 372                 for (var k in fileslist) {
 373                     build_tree(fileslist[k], parentnode);
 374                 }
 375                 scope.treeview.draw();
 376             } else {
 377                 // otherwise files were already added in initialize_tree_view()
 378             }
 379         }
 380         /** append items in icon view mode */
 381         var append_files_icons = function() {
 382             parent = scope.one('.'+classname);
 383             for (var k in fileslist) {
 384                 var node = fileslist[k];
 385                 var element = options.filenode.cloneNode(true);
 386                 parent.appendChild(element);
 387                 element.addClass(options.classnamecallback(node));
 388                 var filenamediv = element.one('.fp-filename');
 389                 filenamediv.setContent(file_get_displayname(node));
 390                 var imgdiv = element.one('.fp-thumbnail'), width, height, src;
 391                 if (node.thumbnail) {
 392                     width = node.thumbnail_width ? node.thumbnail_width : 90;
 393                     height = node.thumbnail_height ? node.thumbnail_height : 90;
 394                     src = node.thumbnail;
 395                 } else {
 396                     width = 16;
 397                     height = 16;
 398                     src = node.icon;
 399                 }
 400                 filenamediv.setStyleAdv('width', width);
 401                 imgdiv.setStyleAdv('width', width).setStyleAdv('height', height);
 402                 var img = Y.Node.create('<img/>').setAttrs({
 403                         title: file_get_description(node),
 404                         alt: node.thumbnail_alt ? node.thumbnail_alt : file_get_filename(node)}).
 405                     setStyle('maxWidth', ''+width+'px').
 406                     setStyle('maxHeight', ''+height+'px');
 407                 img.setImgSrc(src, node.realthumbnail, lazyloading);
 408                 imgdiv.appendChild(img);
 409                 element.on('click', function(e, nd) {
 410                     if (options.rightclickcallback && e.target.ancestor('.fp-iconview .fp-contextmenu', true)) {
 411                         Y.bind(options.rightclickcallback, this)(e, nd);
 412                     } else {
 413                         Y.bind(options.callback, this)(e, nd);
 414                     }
 415                 }, options.callbackcontext, node);
 416                 if (options.rightclickcallback) {
 417                     element.on('contextmenu', options.rightclickcallback, options.callbackcontext, node);
 418                 }
 419             }
 420         }
 421
 422         // initialize files view
 423         if (!options.appendonly) {
 424             var parent = Y.Node.create('<div/>').addClass(classname);
 425             this.setContent('').appendChild(parent);
 426             parent.generateID();
 427             if (options.viewmode == 2) {
 428                 initialize_tree_view();
 429             } else if (options.viewmode == 3) {
 430                 initialize_table_view();
 431             } else {
 432                 // nothing to initialize for icon view
 433             }
 434         }
 435
 436         // append files to the list
 437         if (options.viewmode == 2) {
 438             append_files_tree();
 439         } else if (options.viewmode == 3) {
 440             append_files_table();
 441         } else {
 442             append_files_icons();
 443         }
 444
 445     }
 446
 447     /**
 448      * creates a node and adds it to the div with id #filesskin. This is needed for CSS to be able
 449      * to overwrite YUI skin styles (instead of using !important that does not work in IE)
 450      */
 451     Y.Node.createWithFilesSkin = function(node) {
 452         if (!Y.one('#filesskin')) {
 453             Y.one(document.body).appendChild(Y.Node.create('<div/>').set('id', 'filesskin'));
 454         }
 455         return Y.one('#filesskin').appendChild(Y.Node.create(node));
 456     }
 457 }, '@VERSION@', {
 458     requires:['base', 'node', 'yui2-treeview', 'panel', 'cookie', 'datatable', 'datatable-sort']
 459 });
 460
 461 M.core_filepicker = M.core_filepicker || {};
 462
 463 /**
 464  * instances of file pickers used on page
 465  */
 466 M.core_filepicker.instances = M.core_filepicker.instances || {};
 467 M.core_filepicker.active_filepicker = null;
 468
 469 /**
 470  * HTML Templates to use in FilePicker
 471  */
 472 M.core_filepicker.templates = M.core_filepicker.templates || {};
 473
 474 /**
 475  * Array of image sources for real previews (realicon or realthumbnail) that are already loaded
 476  */
 477 M.core_filepicker.loadedpreviews = M.core_filepicker.loadedpreviews || {};
 478
 479 /**
 480 * Set selected file info
 481 *
 482 * @parma object file info
 483 */
 484 M.core_filepicker.select_file = function(file) {
 485     M.core_filepicker.active_filepicker.select_file(file);
 486 }
 487
 488 /**
 489  * Init and show file picker
 490  */
 491 M.core_filepicker.show = function(Y, options) {
 492     if (!M.core_filepicker.instances[options.client_id]) {
 493         M.core_filepicker.init(Y, options);
 494     }
 495     M.core_filepicker.instances[options.client_id].show();
 496 };
 497
 498 M.core_filepicker.set_templates = function(Y, templates) {
 499     for (var templid in templates) {
 500         M.core_filepicker.templates[templid] = templates[templid];
 501     }
 502 }
 503
 504 /**
 505  * Add new file picker to current instances
 506  */
 507 M.core_filepicker.init = function(Y, options) {
 508     var FilePickerHelper = function(options) {
 509         FilePickerHelper.superclass.constructor.apply(this, arguments);
 510     };
 511
 512     FilePickerHelper.NAME = "FilePickerHelper";
 513     FilePickerHelper.ATTRS = {
 514         options: {},
 515         lang: {}
 516     };
 517
 518     Y.extend(FilePickerHelper, Y.Base, {
 519         api: M.cfg.wwwroot+'/repository/repository_ajax.php',
 520         cached_responses: {},
 521         waitinterval : null, // When the loading template is being displayed and its animation is running this will be an interval instance.
 522         initializer: function(options) {
 523             this.options = options;
 524             if (!this.options.savepath) {
 525                 this.options.savepath = '/';
 526             }
 527         },
 528
 529         destructor: function() {
 530         },
 531
 532         request: function(args, redraw) {
 533             var api = (args.api ? args.api : this.api) + '?action='+args.action;
 534             var params = {};
 535             var scope = args['scope'] ? args['scope'] : this;
 536             params['repo_id']=args.repository_id;
 537             params['p'] = args.path?args.path:'';
 538             params['page'] = args.page?args.page:'';
 539             params['env']=this.options.env;
 540             // the form element only accept certain file types
 541             params['accepted_types']=this.options.accepted_types;
 542             params['sesskey'] = M.cfg.sesskey;
 543             params['client_id'] = args.client_id;
 544             params['itemid'] = this.options.itemid?this.options.itemid:0;
 545             params['maxbytes'] = this.options.maxbytes?this.options.maxbytes:-1;
 546             if (this.options.context && this.options.context.id) {
 547                 params['ctx_id'] = this.options.context.id;
 548             }
 549             if (args['params']) {
 550                 for (i in args['params']) {
 551                     params[i] = args['params'][i];
 552                 }
 553             }
 554             if (args.action == 'upload') {
 555                 var list = [];
 556                 for(var k in params) {
 557                     var value = params[k];
 558                     if(value instanceof Array) {
 559                         for(var i in value) {
 560                             list.push(k+'[]='+value[i]);
 561                         }
 562                     } else {
 563                         list.push(k+'='+value);
 564                     }
 565                 }
 566                 params = list.join('&');
 567             } else {
 568                 params = build_querystring(params);
 569             }
 570             var cfg = {
 571                 method: 'POST',
 572                 on: {
 573                     complete: function(id,o,p) {
 574                         if (!o) {
 575                             // TODO
 576                             alert('IO FATAL');
 577                             return;
 578                         }
 579                         var data = null;
 580                         try {
 581                             data = Y.JSON.parse(o.responseText);
 582                         } catch(e) {
 583                             scope.print_msg(M.str.repository.invalidjson, 'error');
 584                             scope.display_error(M.str.repository.invalidjson+'<pre>'+stripHTML(o.responseText)+'</pre>', 'invalidjson')
 585                             return;
 586                         }
 587                         // error checking
 588                         if (data && data.error) {
 589                             scope.print_msg(data.error, 'error');
 590                             if (args.onerror) {
 591                                 args.onerror(id,data,p);
 592                             } else {
 593                                 this.fpnode.one('.fp-content').setContent('');
 594                             }
 595                             return;
 596                         } else {
 597                             if (data.msg) {
 598                                 scope.print_msg(data.msg, 'info');
 599                             }
 600                             // cache result if applicable
 601                             if (args.action != 'upload' && data.allowcaching) {
 602                                 scope.cached_responses[params] = data;
 603                             }
 604                             // invoke callback
 605                             args.callback(id,data,p);
 606                         }
 607                     }
 608                 },
 609                 arguments: {
 610                     scope: scope
 611                 },
 612                 headers: {
 613                     'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'
 614                 },
 615                 data: params,
 616                 context: this
 617             };
 618             if (args.form) {
 619                 cfg.form = args.form;
 620             }
 621             // check if result of the same request has been already cached. If not, request it
 622             // (never applicable in case of form submission and/or upload action):
 623             if (!args.form && args.action != 'upload' && scope.cached_responses[params]) {
 624                 args.callback(null, scope.cached_responses[params], {scope: scope})
 625             } else {
 626                 Y.io(api, cfg);
 627                 if (redraw) {
 628                     this.wait();
 629                 }
 630             }
 631         },
 632         /** displays the dialog and processes rename/overwrite if there is a file with the same name in the same filearea*/
 633         process_existing_file: function(data) {
 634             var scope = this;
 635             var handleOverwrite = function(e) {
 636                 // overwrite
 637                 e.preventDefault();
 638                 var data = this.process_dlg.dialogdata;
 639                 var params = {}
 640                 params['existingfilename'] = data.existingfile.filename;
 641                 params['existingfilepath'] = data.existingfile.filepath;
 642                 params['newfilename'] = data.newfile.filename;
 643                 params['newfilepath'] = data.newfile.filepath;
 644                 this.hide_header();
 645                 this.request({
 646                     'params': params,
 647                     'scope': this,
 648                     'action':'overwrite',
 649                     'path': '',
 650                     'client_id': this.options.client_id,
 651                     'repository_id': this.active_repo.id,
 652                     'callback': function(id, o, args) {
 653                         scope.hide();
 654                         // editor needs to update url
 655                         // filemanager do nothing
 656                         if (scope.options.editor_target && scope.options.env == 'editor') {
 657                             scope.options.editor_target.value = data.existingfile.url;
 658                             scope.options.editor_target.onchange();
 659                         } else if (scope.options.env === 'filepicker') {
 660                             var fileinfo = {'client_id':scope.options.client_id,
 661                                     'url':data.existingfile.url,
 662                                     'file':data.existingfile.filename};
 663                             var formcallback_scope = scope.options.magicscope ? scope.options.magicscope : scope;
 664                             scope.options.formcallback.apply(formcallback_scope, [fileinfo]);
 665                         }
 666                     }
 667                 }, true);
 668             }
 669             var handleRename = function(e) {
 670                 // inserts file with the new name
 671                 e.preventDefault();
 672                 var scope = this;
 673                 var data = this.process_dlg.dialogdata;
 674                 if (scope.options.editor_target && scope.options.env == 'editor') {
 675                     scope.options.editor_target.value = data.newfile.url;
 676                     scope.options.editor_target.onchange();
 677                 }
 678                 scope.hide();
 679                 var formcallback_scope = scope.options.magicscope ? scope.options.magicscope : scope;
 680                 var fileinfo = {'client_id':scope.options.client_id,
 681                                 'url':data.newfile.url,
 682                                 'file':data.newfile.filename};
 683                 scope.options.formcallback.apply(formcallback_scope, [fileinfo]);
 684             }
 685             var handleCancel = function(e) {
 686                 // Delete tmp file
 687                 e.preventDefault();
 688                 var params = {};
 689                 params['newfilename'] = this.process_dlg.dialogdata.newfile.filename;
 690                 params['newfilepath'] = this.process_dlg.dialogdata.newfile.filepath;
 691                 this.request({
 692                     'params': params,
 693                     'scope': this,
 694                     'action':'deletetmpfile',
 695                     'path': '',
 696                     'client_id': this.options.client_id,
 697                     'repository_id': this.active_repo.id,
 698                     'callback': function(id, o, args) {
 699                         // let it be in background, from user point of view nothing is happenning
 700                     }
 701                 }, false);
 702                 this.process_dlg.hide();
 703                 this.selectui.hide();
 704             }
 705             if (!this.process_dlg) {
 706                 this.process_dlg_node = Y.Node.createWithFilesSkin(M.core_filepicker.templates.processexistingfile);
 707                 var node = this.process_dlg_node;
 708                 node.generateID();
 709                 this.process_dlg = new Y.Panel({
 710                     srcNode      : node,
 711                     headerContent: M.str.repository.fileexistsdialogheader,
 712                     zIndex       : 800000,
 713                     centered     : true,
 714                     modal        : true,
 715                     visible      : false,
 716                     render       : true,
 717                     buttons      : {}
 718                 });
 719                 this.process_dlg.plug(Y.Plugin.Drag,{handles:['#'+node.get('id')+' .yui3-widget-hd']});
 720                 node.one('.fp-dlg-butoverwrite').on('click', handleOverwrite, this);
 721                 node.one('.fp-dlg-butrename').on('click', handleRename, this);
 722                 node.one('.fp-dlg-butcancel').on('click', handleCancel, this);
 723                 if (this.options.env == 'editor') {
 724                     node.one('.fp-dlg-text').setContent(M.str.repository.fileexistsdialog_editor);
 725                 } else {
 726                     node.one('.fp-dlg-text').setContent(M.str.repository.fileexistsdialog_filemanager);
 727                 }
 728             }
 729             this.selectnode.removeClass('loading');
 730             this.process_dlg.dialogdata = data;
 731             this.process_dlg_node.one('.fp-dlg-butrename').setContent(M.util.get_string('renameto', 'repository', data.newfile.filename));
 732             this.process_dlg.show();
 733         },
 734         /** displays error instead of filepicker contents */
 735         display_error: function(errortext, errorcode) {
 736             this.fpnode.one('.fp-content').setContent(M.core_filepicker.templates.error);
 737             this.fpnode.one('.fp-content .fp-error').
 738                 addClass(errorcode).
 739                 setContent(errortext);
 740         },
 741         /** displays message in a popup */
 742         print_msg: function(msg, type) {
 743             var header = M.str.moodle.error;
 744             if (type != 'error') {
 745                 type = 'info'; // one of only two types excepted
 746                 header = M.str.moodle.info;
 747             }
 748             if (!this.msg_dlg) {
 749                 this.msg_dlg_node = Y.Node.createWithFilesSkin(M.core_filepicker.templates.message);
 750                 this.msg_dlg_node.generateID();
 751
 752                 this.msg_dlg = new Y.Panel({
 753                     srcNode      : this.msg_dlg_node,
 754                     zIndex       : 800000,
 755                     centered     : true,
 756                     modal        : true,
 757                     visible      : false,
 758                     render       : true
 759                 });
 760                 this.msg_dlg.plug(Y.Plugin.Drag,{handles:['#'+this.msg_dlg_node.get('id')+' .yui3-widget-hd']});
 761                 this.msg_dlg_node.one('.fp-msg-butok').on('click', function(e) {
 762                     e.preventDefault();
 763                     this.msg_dlg.hide();
 764                 }, this);
 765             }
 766
 767             this.msg_dlg.set('headerContent', header);
 768             this.msg_dlg_node.removeClass('fp-msg-info').removeClass('fp-msg-error').addClass('fp-msg-'+type)
 769             this.msg_dlg_node.one('.fp-msg-text').setContent(msg);
 770             this.msg_dlg.show();
 771         },
 772         view_files: function(appenditems) {
 773             this.viewbar_set_enabled(true);
 774             this.print_path();
 775             /*if ((appenditems == null) && (!this.filelist || !this.filelist.length) && !this.active_repo.hasmorepages) {
 776              // TODO do it via classes and adjust for each view mode!
 777                 // If there are no items and no next page, just display status message and quit
 778                 this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
 779                 return;
 780             }*/
 781             if (this.viewmode == 2) {
 782                 this.view_as_list(appenditems);
 783             } else if (this.viewmode == 3) {
 784                 this.view_as_table(appenditems);
 785             } else {
 786                 this.view_as_icons(appenditems);
 787             }
 788             // display/hide the link for requesting next page
 789             if (!appenditems && this.active_repo.hasmorepages) {
 790                 if (!this.fpnode.one('.fp-content .fp-nextpage')) {
 791                     this.fpnode.one('.fp-content').append(M.core_filepicker.templates.nextpage);
 792                 }
 793                 this.fpnode.one('.fp-content .fp-nextpage').one('a,button').on('click', function(e) {
 794                     e.preventDefault();
 795                     this.fpnode.one('.fp-content .fp-nextpage').addClass('loading');
 796                     this.request_next_page();
 797                 }, this);
 798             }
 799             if (!this.active_repo.hasmorepages && this.fpnode.one('.fp-content .fp-nextpage')) {
 800                 this.fpnode.one('.fp-content .fp-nextpage').remove();
 801             }
 802             if (this.fpnode.one('.fp-content .fp-nextpage')) {
 803                 this.fpnode.one('.fp-content .fp-nextpage').removeClass('loading');
 804             }
 805             this.content_scrolled();
 806         },
 807         content_scrolled: function(e) {
 808             setTimeout(Y.bind(function() {
 809                 if (this.processingimages) {
 810                     return;
 811                 }
 812                 this.processingimages = true;
 813                 var scope = this,
 814                     fpcontent = this.fpnode.one('.fp-content'),
 815                     fpcontenty = fpcontent.getY(),
 816                     fpcontentheight = fpcontent.getStylePx('height'),
 817                     nextpage = fpcontent.one('.fp-nextpage'),
 818                     is_node_visible = function(node) {
 819                         var offset = node.getY()-fpcontenty;
 820                         if (offset <= fpcontentheight && (offset >=0 || offset+node.getStylePx('height')>=0)) {
 821                             return true;
 822                         }
 823                         return false;
 824                     };
 825                 // automatically load next page when 'more' link becomes visible
 826                 if (nextpage && !nextpage.hasClass('loading') && is_node_visible(nextpage)) {
 827                     nextpage.one('a,button').simulate('click');
 828                 }
 829                 // replace src for visible images that need to be lazy-loaded
 830                 if (scope.lazyloading) {
 831                     fpcontent.all('img').each( function(node) {
 832                         if (node.get('id') && scope.lazyloading[node.get('id')] && is_node_visible(node)) {
 833                             node.setImgRealSrc(scope.lazyloading);
 834                         }
 835                     });
 836                 }
 837                 this.processingimages = false;
 838             }, this), 200)
 839         },
 840         treeview_dynload: function(node, cb) {
 841             var retrieved_children = {};
 842             if (node.children) {
 843                 for (var i in node.children) {
 844                     retrieved_children[node.children[i].path] = node.children[i];
 845                 }
 846             }
 847             this.request({
 848                 action:'list',
 849                 client_id: this.options.client_id,
 850                 repository_id: this.active_repo.id,
 851                 path:node.path?node.path:'',
 852                 page:node.page?args.page:'',
 853                 scope:this,
 854                 callback: function(id, obj, args) {
 855                     var list = obj.list;
 856                     var scope = args.scope;
 857                     // check that user did not leave the view mode before recieving this response
 858                     if (!(scope.active_repo.id == obj.repo_id && scope.viewmode == 2 && node && node.getChildrenEl())) {
 859                         return;
 860                     }
 861                     if (cb != null) { // (in manual mode do not update current path)
 862                         scope.viewbar_set_enabled(true);
 863                         scope.parse_repository_options(obj);
 864                     }
 865                     node.highlight(false);
 866                     node.origlist = obj.list ? obj.list : null;
 867                     node.origpath = obj.path ? obj.path : null;
 868                     node.children = [];
 869                     for(k in list) {
 870                         if (list[k].children && retrieved_children[list[k].path]) {
 871                             // if this child is a folder and has already been retrieved
 872                             node.children[node.children.length] = retrieved_children[list[k].path];
 873                         } else {
 874                             // append new file to the list
 875                             scope.view_as_list([list[k]]);
 876                         }
 877                     }
 878                     if (cb == null) {
 879                         node.refresh();
 880                     } else {
 881                         // invoke callback requested by TreeView component
 882                         cb();
 883                     }
 884                     scope.content_scrolled();
 885                 }
 886             }, false);
 887         },
 888        classnamecallback : function(node) {
 889             var classname = '';
 890             if (node.children) {
 891                 classname = classname + ' fp-folder';
 892             }
 893             if (node.isref) {
 894                 classname = classname + ' fp-isreference';
 895             }
 896             if (node.refcount) {
 897                 classname = classname + ' fp-hasreferences';
 898             }
 899             if (node.originalmissing) {
 900                 classname = classname + ' fp-originalmissing';
 901             }
 902             return Y.Lang.trim(classname);
 903         },
 904         /** displays list of files in tree (list) view mode. If param appenditems is specified,
 905          * appends those items to the end of the list. Otherwise (default behaviour)
 906          * clears the contents and displays the items from this.filelist */
 907         view_as_list: function(appenditems) {
 908             var list = (appenditems != null) ? appenditems : this.filelist;
 909             this.viewmode = 2;
 910             if (!this.filelist || this.filelist.length==0 && (!this.filepath || !this.filepath.length)) {
 911                 this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
 912                 return;
 913             }
 914
 915             var element_template = Y.Node.create(M.core_filepicker.templates.listfilename);
 916             var options = {
 917                 viewmode : this.viewmode,
 918                 appendonly : (appenditems != null),
 919                 filenode : element_template,
 920                 callbackcontext : this,
 921                 callback : function(e, node) {
 922                     // TODO MDL-32736 e is not an event here but an object with properties 'event' and 'node'
 923                     if (!node.children) {
 924                         if (e.node.parent && e.node.parent.origpath) {
 925                             // set the current path
 926                             this.filepath = e.node.parent.origpath;
 927                             this.filelist = e.node.parent.origlist;
 928                             this.print_path();
 929                         }
 930                         this.select_file(node);
 931                     } else {
 932                         // save current path and filelist (in case we want to jump to other viewmode)
 933                         this.filepath = e.node.origpath;
 934                         this.filelist = e.node.origlist;
 935                         this.print_path();
 936                         this.content_scrolled();
 937                     }
 938                 },
 939                 classnamecallback : this.classnamecallback,
 940                 dynload : this.active_repo.dynload,
 941                 filepath : this.filepath,
 942                 treeview_dynload : this.treeview_dynload
 943             };
 944             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
 945         },
 946         /** displays list of files in icon view mode. If param appenditems is specified,
 947          * appends those items to the end of the list. Otherwise (default behaviour)
 948          * clears the contents and displays the items from this.filelist */
 949         view_as_icons: function(appenditems) {
 950             this.viewmode = 1;
 951             var list = (appenditems != null) ? appenditems : this.filelist;
 952             var element_template = Y.Node.create(M.core_filepicker.templates.iconfilename);
 953             if ((appenditems == null) && (!this.filelist || !this.filelist.length)) {
 954                 this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
 955                 return;
 956             }
 957             var options = {
 958                 viewmode : this.viewmode,
 959                 appendonly : (appenditems != null),
 960                 filenode : element_template,
 961                 callbackcontext : this,
 962                 callback : function(e, node) {
 963                     if (e.preventDefault) {
 964                         e.preventDefault();
 965                     }
 966                     if(node.children) {
 967                         if (this.active_repo.dynload) {
 968                             this.list({'path':node.path});
 969                         } else {
 970                             this.filepath = node.path;
 971                             this.filelist = node.children;
 972                             this.view_files();
 973                         }
 974                     } else {
 975                         this.select_file(node);
 976                     }
 977                 },
 978                 classnamecallback : this.classnamecallback
 979             };
 980             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
 981         },
 982         /** displays list of files in table view mode. If param appenditems is specified,
 983          * appends those items to the end of the list. Otherwise (default behaviour)
 984          * clears the contents and displays the items from this.filelist */
 985         view_as_table: function(appenditems) {
 986             this.viewmode = 3;
 987             var list = (appenditems != null) ? appenditems : this.filelist;
 988             if (!appenditems && (!this.filelist || this.filelist.length==0) && !this.active_repo.hasmorepages) {
 989                 this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
 990                 return;
 991             }
 992             var element_template = Y.Node.create(M.core_filepicker.templates.listfilename);
 993             var options = {
 994                 viewmode : this.viewmode,
 995                 appendonly : (appenditems != null),
 996                 filenode : element_template,
 997                 callbackcontext : this,
 998                 sortable : !this.active_repo.hasmorepages,
 999                 callback : function(e, node) {
1000                     if (e.preventDefault) {e.preventDefault();}
1001                     if (node.children) {
1002                         if (this.active_repo.dynload) {
1003                             this.list({'path':node.path});
1004                         } else {
1005                             this.filepath = node.path;
1006                             this.filelist = node.children;
1007                             this.view_files();
1008                         }
1009                     } else {
1010                         this.select_file(node);
1011                     }
1012                 },
1013                 classnamecallback : this.classnamecallback
1014             };
1015             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
1016         },
1017         /** If more than one page available, requests and displays the files from the next page */
1018         request_next_page: function() {
1019             if (!this.active_repo.hasmorepages || this.active_repo.nextpagerequested) {
1020                 // nothing to load
1021                 return;
1022             }
1023             this.active_repo.nextpagerequested = true;
1024             var nextpage = this.active_repo.page+1;
1025             var args = {page:nextpage, repo_id:this.active_repo.id, path:this.active_repo.path};
1026             var action = this.active_repo.issearchresult ? 'search' : 'list';
1027             this.request({
1028                 scope: this,
1029                 action: action,
1030                 client_id: this.options.client_id,
1031                 repository_id: args.repo_id,
1032                 params: args,
1033                 callback: function(id, obj, args) {
1034                     var scope = args.scope;
1035                     // check that we are still in the same repository and are expecting this page
1036                     if (scope.active_repo.hasmorepages && obj.list && obj.page &&
1037                             obj.repo_id == scope.active_repo.id &&
1038                             obj.page == scope.active_repo.page+1 && obj.path == scope.path) {
1039                         scope.parse_repository_options(obj, true);
1040                         scope.view_files(obj.list)
1041                     }
1042                 }
1043             }, false);
1044         },
1045         select_file: function(args) {
1046             this.selectui.show();
1047             var client_id = this.options.client_id;
1048             var selectnode = this.selectnode;
1049             var return_types = this.options.repositories[this.active_repo.id].return_types;
1050             selectnode.removeClass('loading');
1051             selectnode.one('.fp-saveas input').set('value', args.title);
1052
1053             var imgnode = Y.Node.create('<img/>').
1054                 set('src', args.realthumbnail ? args.realthumbnail : args.thumbnail).
1055                 setStyle('maxHeight', ''+(args.thumbnail_height ? args.thumbnail_height : 90)+'px').
1056                 setStyle('maxWidth', ''+(args.thumbnail_width ? args.thumbnail_width : 90)+'px');
1057             selectnode.one('.fp-thumbnail').setContent('').appendChild(imgnode);
1058
1059             // filelink is the array of file-link-types available for this repository in this env
1060             var filelinktypes = [2/*FILE_INTERNAL*/,1/*FILE_EXTERNAL*/,4/*FILE_REFERENCE*/];
1061             var filelink = {}, firstfilelink = null, filelinkcount = 0;
1062             for (var i in filelinktypes) {
1063                 var allowed = (return_types & filelinktypes[i]) &&
1064                     (this.options.return_types & filelinktypes[i]);
1065                 if (filelinktypes[i] == 1/*FILE_EXTERNAL*/ && !this.options.externallink && this.options.env == 'editor') {
1066                     // special configuration setting 'repositoryallowexternallinks' may prevent
1067                     // using external links in editor environment
1068                     allowed = false;
1069                 }
1070                 filelink[filelinktypes[i]] = allowed;
1071                 firstfilelink = (firstfilelink==null && allowed) ? filelinktypes[i] : firstfilelink;
1072                 filelinkcount += allowed ? 1 : 0;
1073             }
1074             // make radio buttons enabled if this file-link-type is available and only if there are more than one file-link-type option
1075             // check the first available file-link-type option
1076             for (var linktype in filelink) {
1077                 var el = selectnode.one('.fp-linktype-'+linktype);
1078                 el.addClassIf('uneditable', !(filelink[linktype] && filelinkcount>1));
1079                 el.one('input').set('disabled', (filelink[linktype] && filelinkcount>1) ? '' : 'disabled').
1080                     set('checked', (firstfilelink == linktype) ? 'checked' : '').simulate('change')
1081             }
1082
1083             // TODO MDL-32532: attributes 'hasauthor' and 'haslicense' need to be obsolete,
1084             selectnode.one('.fp-setauthor input').set('value', args.author ? args.author : this.options.author);
1085             this.set_selected_license(selectnode.one('.fp-setlicense'), args.license);
1086             selectnode.one('form #filesource-'+client_id).set('value', args.source);
1087
1088             // display static information about a file (when known)
1089             var attrs = ['datemodified','datecreated','size','license','author','dimensions'];
1090             for (var i in attrs) {
1091                 if (selectnode.one('.fp-'+attrs[i])) {
1092                     var value = (args[attrs[i]+'_f']) ? args[attrs[i]+'_f'] : (args[attrs[i]] ? args[attrs[i]] : '');
1093                     selectnode.one('.fp-'+attrs[i]).addClassIf('fp-unknown', ''+value == '')
1094                         .one('.fp-value').setContent(value);
1095                 }
1096             }
1097         },
1098         setup_select_file: function() {
1099             var client_id = this.options.client_id;
1100             var selectnode = this.selectnode;
1101             var getfile = selectnode.one('.fp-select-confirm');
1102             // bind labels with corresponding inputs
1103             selectnode.all('.fp-saveas,.fp-linktype-2,.fp-linktype-1,.fp-linktype-4,.fp-setauthor,.fp-setlicense').each(function (node) {
1104                 node.all('label').set('for', node.one('input,select').generateID());
1105             });
1106             selectnode.one('.fp-linktype-2 input').setAttrs({value: 2, name: 'linktype'});
1107             selectnode.one('.fp-linktype-1 input').setAttrs({value: 1, name: 'linktype'});
1108             selectnode.one('.fp-linktype-4 input').setAttrs({value: 4, name: 'linktype'});
1109             var changelinktype = function(e) {
1110                 if (e.currentTarget.get('checked')) {
1111                     var allowinputs = e.currentTarget.get('value') != 1/*FILE_EXTERNAL*/;
1112                     selectnode.all('.fp-setauthor,.fp-setlicense,.fp-saveas').each(function(node){
1113                         node.addClassIf('uneditable', !allowinputs);
1114                         node.all('input,select').set('disabled', allowinputs?'':'disabled');
1115                     });
1116                 }
1117             };
1118             selectnode.all('.fp-linktype-2,.fp-linktype-1,.fp-linktype-4').each(function (node) {
1119                 node.one('input').on('change', changelinktype, this);
1120             });
1121             this.populate_licenses_select(selectnode.one('.fp-setlicense select'));
1122             // register event on clicking submit button
1123             getfile.on('click', function(e) {
1124                 e.preventDefault();
1125                 var client_id = this.options.client_id;
1126                 var scope = this;
1127                 var repository_id = this.active_repo.id;
1128                 var title = selectnode.one('.fp-saveas input').get('value');
1129                 var filesource = selectnode.one('form #filesource-'+client_id).get('value');
1130                 var params = {'title':title, 'source':filesource, 'savepath': this.options.savepath};
1131                 var license = selectnode.one('.fp-setlicense select');
1132                 if (license) {
1133                     params['license'] = license.get('value');
1134                     var origlicense = selectnode.one('.fp-license .fp-value');
1135                     if (origlicense) {
1136                         origlicense = origlicense.getContent();
1137                     }
1138                     this.set_preference('recentlicense', license.get('value'));
1139                 }
1140                 params['author'] = selectnode.one('.fp-setauthor input').get('value');
1141
1142                 var return_types = this.options.repositories[this.active_repo.id].return_types;
1143                 if (this.options.env == 'editor') {
1144                     // in editor, images are stored in '/' only
1145                     params.savepath = '/';
1146                 }
1147                 if ((this.options.externallink || this.options.env != 'editor') &&
1148                             (return_types & 1/*FILE_EXTERNAL*/) &&
1149                             (this.options.return_types & 1/*FILE_EXTERNAL*/) &&
1150                             selectnode.one('.fp-linktype-1 input').get('checked')) {
1151                     params['linkexternal'] = 'yes';
1152                 } else if ((return_types & 4/*FILE_REFERENCE*/) &&
1153                         (this.options.return_types & 4/*FILE_REFERENCE*/) &&
1154                         selectnode.one('.fp-linktype-4 input').get('checked')) {
1155                     params['usefilereference'] = '1';
1156                 }
1157
1158                 selectnode.addClass('loading');
1159                 this.request({
1160                     action:'download',
1161                     client_id: client_id,
1162                     repository_id: repository_id,
1163                     'params': params,
1164                     onerror: function(id, obj, args) {
1165                         selectnode.removeClass('loading');
1166                         scope.selectui.hide();
1167                     },
1168                     callback: function(id, obj, args) {
1169                         selectnode.removeClass('loading');
1170                         if (obj.event == 'fileexists') {
1171                             scope.process_existing_file(obj);
1172                             return;
1173                         }
1174                         if (scope.options.editor_target && scope.options.env=='editor') {
1175                             scope.options.editor_target.value=obj.url;
1176                             scope.options.editor_target.onchange();
1177                         }
1178                         scope.hide();
1179                         obj.client_id = client_id;
1180                         var formcallback_scope = args.scope.options.magicscope ? args.scope.options.magicscope : args.scope;
1181                         scope.options.formcallback.apply(formcallback_scope, [obj]);
1182                     }
1183                 }, false);
1184             }, this);
1185             var elform = selectnode.one('form');
1186             elform.appendChild(Y.Node.create('<input/>').
1187                 setAttrs({type:'hidden',id:'filesource-'+client_id}));
1188             elform.on('keydown', function(e) {
1189                 if (e.keyCode == 13) {
1190                     getfile.simulate('click');
1191                     e.preventDefault();
1192                 }
1193             }, this);
1194             var cancel = selectnode.one('.fp-select-cancel');
1195             cancel.on('click', function(e) {
1196                 e.preventDefault();
1197                 this.selectui.hide();
1198             }, this);
1199         },
1200         wait: function() {
1201             // First check there isn't already an interval in play, and if there is kill it now.
1202             if (this.waitinterval != null) {
1203                 clearInterval(this.waitinterval);
1204             }
1205             // Prepare the root node we will set content for and the loading template we want to display as a YUI node.
1206             var root = this.fpnode.one('.fp-content');
1207             var content = Y.Node.create(M.core_filepicker.templates.loading).addClass('fp-content-hidden').setStyle('opacity', 0);
1208             var count = 0;
1209             // Initiate an interval, we will have a count which will increment every 100 milliseconds.
1210             // Count 0 - the loading icon will have visibility set to hidden (invisible) and have an opacity of 0 (invisible also)
1211             // Count 5 - the visiblity will be switched to visible but opacity will still be at 0 (inivisible)
1212             // Counts 6 - 15 opacity will be increased by 0.1 making the loading icon visible over the period of a second
1213             // Count 16 - The interval will be cancelled.
1214             var interval = setInterval(function(){
1215                 if (!content || !root.contains(content) || count >= 15) {
1216                     clearInterval(interval);
1217                     return true;
1218                 }
1219                 if (count == 5) {
1220                     content.removeClass('fp-content-hidden');
1221                 } else if (count > 5) {
1222                     var opacity = parseFloat(content.getStyle('opacity'));
1223                     content.setStyle('opacity', opacity + 0.1);
1224                 }
1225                 count++;
1226                 return false;
1227             }, 100);
1228             // Store the wait interval so that we can check it in the future.
1229             this.waitinterval = interval;
1230             // Set the content to the loading template.
1231             root.setContent(content);
1232         },
1233         viewbar_set_enabled: function(mode) {
1234             var viewbar = this.fpnode.one('.fp-viewbar')
1235             if (viewbar) {
1236                 if (mode) {
1237                     viewbar.addClass('enabled').removeClass('disabled')
1238                 } else {
1239                     viewbar.removeClass('enabled').addClass('disabled')
1240                 }
1241             }
1242             this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').removeClass('checked')
1243             var modes = {1:'icons', 2:'tree', 3:'details'};
1244             this.fpnode.all('.fp-vb-'+modes[this.viewmode]).addClass('checked');
1245         },
1246         viewbar_clicked: function(e) {
1247             e.preventDefault();
1248             var viewbar = this.fpnode.one('.fp-viewbar')
1249             if (!viewbar || !viewbar.hasClass('disabled')) {
1250                 if (e.currentTarget.hasClass('fp-vb-tree')) {
1251                     this.viewmode = 2;
1252                 } else if (e.currentTarget.hasClass('fp-vb-details')) {
1253                     this.viewmode = 3;
1254                 } else {
1255                     this.viewmode = 1;
1256                 }
1257                 this.viewbar_set_enabled(true)
1258                 this.view_files();
1259                 this.set_preference('recentviewmode', this.viewmode);
1260             }
1261         },
1262         render: function() {
1263             var client_id = this.options.client_id;
1264             this.fpnode = Y.Node.createWithFilesSkin(M.core_filepicker.templates.generallayout).
1265                 set('id', 'filepicker-'+client_id);
1266             this.mainui = new Y.Panel({
1267                 srcNode      : this.fpnode,
1268                 headerContent: M.str.repository.filepicker,
1269                 zIndex       : 500000,
1270                 centered     : true,
1271                 modal        : true,
1272                 visible      : false,
1273                 minWidth     : this.fpnode.getStylePx('minWidth'),
1274                 minHeight    : this.fpnode.getStylePx('minHeight'),
1275                 maxWidth     : this.fpnode.getStylePx('maxWidth'),
1276                 maxHeight    : this.fpnode.getStylePx('maxHeight'),
1277                 render       : true
1278             });
1279             // allow to move the panel dragging it by it's header:
1280             this.mainui.plug(Y.Plugin.Drag,{handles:['#filepicker-'+client_id+' .yui3-widget-hd']});
1281             this.mainui.show();
1282             if (this.mainui.get('y') < 0) {
1283                 this.mainui.set('y', 0);
1284             }
1285             // create panel for selecting a file (initially hidden)
1286             this.selectnode = Y.Node.createWithFilesSkin(M.core_filepicker.templates.selectlayout).
1287                 set('id', 'filepicker-select-'+client_id);
1288             this.selectui = new Y.Panel({
1289                 srcNode      : this.selectnode,
1290                 zIndex       : 600000,
1291                 centered     : true,
1292                 modal        : true,
1293                 close        : true,
1294                 render       : true
1295             });
1296             // allow to move the panel dragging it by it's header:
1297             this.selectui.plug(Y.Plugin.Drag,{handles:['#filepicker-select-'+client_id+' .yui3-widget-hd']});
1298             this.selectui.hide();
1299             // event handler for lazy loading of thumbnails and next page
1300             this.fpnode.one('.fp-content').on(['scroll','resize'], this.content_scrolled, this);
1301             // save template for one path element and location of path bar
1302             if (this.fpnode.one('.fp-path-folder')) {
1303                 this.pathnode = this.fpnode.one('.fp-path-folder');
1304                 this.pathbar = this.pathnode.get('parentNode');
1305                 this.pathbar.removeChild(this.pathnode);
1306             }
1307             // assign callbacks for view mode switch buttons
1308             this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').
1309                 on('click', this.viewbar_clicked, this);
1310             // assign callbacks for toolbar links
1311             this.setup_toolbar();
1312             this.setup_select_file();
1313             this.hide_header();
1314
1315             // processing repository listing
1316             // Resort the repositories by sortorder
1317             var sorted_repositories = [];
1318             for (var i in this.options.repositories) {
1319                 sorted_repositories[i] = this.options.repositories[i];
1320             }
1321             sorted_repositories.sort(function(a,b){return a.sortorder-b.sortorder});
1322             // extract one repository template and repeat it for all repositories available,
1323             // set name and icon and assign callbacks
1324             var reponode = this.fpnode.one('.fp-repo');
1325             if (reponode) {
1326                 var list = reponode.get('parentNode');
1327                 list.removeChild(reponode);
1328                 for (i in sorted_repositories) {
1329                     var repository = sorted_repositories[i];
1330                     var node = reponode.cloneNode(true);
1331                     list.appendChild(node);
1332                     node.
1333                         set('id', 'fp-repo-'+client_id+'-'+repository.id).
1334                         on('click', function(e, repository_id) {
1335                             e.preventDefault();
1336                             this.set_preference('recentrepository', repository_id);
1337                             this.hide_header();
1338                             this.list({'repo_id':repository_id});
1339                         }, this /*handler running scope*/, repository.id/*second argument of handler*/);
1340                     node.one('.fp-repo-name').setContent(repository.name);
1341                     node.one('.fp-repo-icon').set('src', repository.icon);
1342                     if (i==0) {
1343                         node.addClass('first');
1344                     }
1345                     if (i==sorted_repositories.length-1) {
1346                         node.addClass('last');
1347                     }
1348                     if (i%2) {
1349                         node.addClass('even');
1350                     } else {
1351                         node.addClass('odd');
1352                     }
1353                 }
1354             }
1355             // display error if no repositories found
1356             if (sorted_repositories.length==0) {
1357                 this.display_error(M.str.repository.norepositoriesavailable, 'norepositoriesavailable')
1358             }
1359             // display repository that was used last time
1360             this.show_recent_repository();
1361         },
1362         parse_repository_options: function(data, appendtolist) {
1363             if (appendtolist) {
1364                 if (data.list) {
1365                     if (!this.filelist) {
1366                         this.filelist = [];
1367                     }
1368                     for (var i in data.list) {
1369                         this.filelist[this.filelist.length] = data.list[i];
1370                     }
1371                 }
1372             } else {
1373                 this.filelist = data.list?data.list:null;
1374                 this.lazyloading = {};
1375             }
1376             this.filepath = data.path?data.path:null;
1377             this.objecttag = data.object?data.object:null;
1378             this.active_repo = {};
1379             this.active_repo.issearchresult = data.issearchresult ? true : false;
1380             this.active_repo.dynload = data.dynload?data.dynload:false;
1381             this.active_repo.pages = Number(data.pages?data.pages:null);
1382             this.active_repo.page = Number(data.page?data.page:null);
1383             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))
1384             this.active_repo.id = data.repo_id?data.repo_id:null;
1385             this.active_repo.nosearch = (data.login || data.nosearch); // this is either login form or 'nosearch' attribute set
1386             this.active_repo.norefresh = (data.login || data.norefresh); // this is either login form or 'norefresh' attribute set
1387             this.active_repo.nologin = (data.login || data.nologin); // this is either login form or 'nologin' attribute is set
1388             this.active_repo.logouttext = data.logouttext?data.logouttext:null;
1389             this.active_repo.help = data.help?data.help:null;
1390             this.active_repo.manage = data.manage?data.manage:null;
1391             this.print_header();
1392         },
1393         print_login: function(data) {
1394             this.parse_repository_options(data);
1395             var client_id = this.options.client_id;
1396             var repository_id = data.repo_id;
1397             var l = this.logindata = data.login;
1398             var loginurl = '';
1399             var action = data['login_btn_action'] ? data['login_btn_action'] : 'login';
1400             var form_id = 'fp-form-'+client_id;
1401
1402             var loginform_node = Y.Node.create(M.core_filepicker.templates.loginform);
1403             loginform_node.one('form').set('id', form_id);
1404             this.fpnode.one('.fp-content').setContent('').appendChild(loginform_node);
1405             var templates = {
1406                 'popup' : loginform_node.one('.fp-login-popup'),
1407                 'textarea' : loginform_node.one('.fp-login-textarea'),
1408                 'select' : loginform_node.one('.fp-login-select'),
1409                 'text' : loginform_node.one('.fp-login-text'),
1410                 'radio' : loginform_node.one('.fp-login-radiogroup'),
1411                 'checkbox' : loginform_node.one('.fp-login-checkbox'),
1412                 'input' : loginform_node.one('.fp-login-input')
1413             };
1414             var container;
1415             for (var i in templates) {
1416                 if (templates[i]) {
1417                     container = templates[i].get('parentNode');
1418                     container.removeChild(templates[i]);
1419                 }
1420             }
1421
1422             for(var k in l) {
1423                 if (templates[l[k].type]) {
1424                     var node = templates[l[k].type].cloneNode(true);
1425                 } else {
1426                     node = templates['input'].cloneNode(true);
1427                 }
1428                 if (l[k].type == 'popup') {
1429                     // submit button
1430                     loginurl = l[k].url;
1431                     var popupbutton = node.one('button');
1432                     popupbutton.on('click', function(e){
1433                         M.core_filepicker.active_filepicker = this;
1434                         window.open(loginurl, 'repo_auth', 'location=0,status=0,width=500,height=300,scrollbars=yes');
1435                         e.preventDefault();
1436                     }, this);
1437                     loginform_node.one('form').on('keydown', function(e) {
1438                         if (e.keyCode == 13) {
1439                             popupbutton.simulate('click');
1440                             e.preventDefault();
1441                         }
1442                     }, this);
1443                     loginform_node.all('.fp-login-submit').remove();
1444                     action = 'popup';
1445                 } else if(l[k].type=='textarea') {
1446                     // textarea element
1447                     if (node.one('label')) {
1448                         node.one('label').set('for', l[k].id).setContent(l[k].label);
1449                     }
1450                     node.one('textarea').setAttrs({id:l[k].id, name:l[k].name});
1451                 } else if(l[k].type=='select') {
1452                     // select element
1453                     if (node.one('label')) {
1454                         node.one('label').set('for', l[k].id).setContent(l[k].label);
1455                     }
1456                     node.one('select').setAttrs({id:l[k].id, name:l[k].name}).setContent('');
1457                     for (i in l[k].options) {
1458                         node.one('select').appendChild(
1459                             Y.Node.create('<option/>').
1460                                 set('value', l[k].options[i].value).
1461                                 setContent(l[k].options[i].label));
1462                     }
1463                 } else if(l[k].type=='radio') {
1464                     // radio input element
1465                     node.all('label').setContent(l[k].label);
1466                     var list = l[k].value.split('|');
1467                     var labels = l[k].value_label.split('|');
1468                     var radionode = null;
1469                     for(var item in list) {
1470                         if (radionode == null) {
1471                             radionode = node.one('.fp-login-radio');
1472                             radionode.one('input').set('checked', 'checked');
1473                         } else {
1474                             var x = radionode.cloneNode(true);
1475                             radionode.insert(x, 'after');
1476                             radionode = x;
1477                             radionode.one('input').set('checked', '');
1478                         }
1479                         radionode.one('input').setAttrs({id:''+l[k].id+item, name:l[k].name,
1480                             type:l[k].type, value:list[item]});
1481                         radionode.all('label').setContent(labels[item]).set('for', ''+l[k].id+item)
1482                     }
1483                     if (radionode == null) {
1484                         node.one('.fp-login-radio').remove();
1485                     }
1486                 } else {
1487                     // input element
1488                     if (node.one('label')) { node.one('label').set('for', l[k].id).setContent(l[k].label) }
1489                     node.one('input').
1490                         set('type', l[k].type).
1491                         set('id', l[k].id).
1492                         set('name', l[k].name).
1493                         set('value', l[k].value?l[k].value:'')
1494                 }
1495                 container.appendChild(node);
1496             }
1497             // custom label text for submit button
1498             if (data['login_btn_label']) {
1499                 loginform_node.all('.fp-login-submit').setContent(data['login_btn_label'])
1500             }
1501             // register button action for login and search
1502             if (action == 'login' || action == 'search') {
1503                 loginform_node.one('.fp-login-submit').on('click', function(e){
1504                     e.preventDefault();
1505                     this.hide_header();
1506                     this.request({
1507                         'scope': this,
1508                         'action':(action == 'search') ? 'search' : 'signin',
1509                         'path': '',
1510                         'client_id': client_id,
1511                         'repository_id': repository_id,
1512                         'form': {id:form_id, upload:false, useDisabled:true},
1513                         'callback': this.display_response
1514                     }, true);
1515                 }, this);
1516             }
1517             // if 'Enter' is pressed in the form, simulate the button click
1518             if (loginform_node.one('.fp-login-submit')) {
1519                 loginform_node.one('form').on('keydown', function(e) {
1520                     if (e.keyCode == 13) {
1521                         loginform_node.one('.fp-login-submit').simulate('click')
1522                         e.preventDefault();
1523                     }
1524                 }, this);
1525             }
1526         },
1527         display_response: function(id, obj, args) {
1528             var scope = args.scope
1529             // highlight the current repository in repositories list
1530             scope.fpnode.all('.fp-repo.active').removeClass('active');
1531             scope.fpnode.all('#fp-repo-'+scope.options.client_id+'-'+obj.repo_id).addClass('active')
1532             // add class repository_REPTYPE to the filepicker (for repository-specific styles)
1533             for (var i in scope.options.repositories) {
1534                 scope.fpnode.removeClass('repository_'+scope.options.repositories[i].type)
1535             }
1536             if (obj.repo_id && scope.options.repositories[obj.repo_id]) {
1537                 scope.fpnode.addClass('repository_'+scope.options.repositories[obj.repo_id].type)
1538             }
1539             // display response
1540             if (obj.login) {
1541                 scope.viewbar_set_enabled(false);
1542                 scope.print_login(obj);
1543             } else if (obj.upload) {
1544                 scope.viewbar_set_enabled(false);
1545                 scope.parse_repository_options(obj);
1546                 scope.create_upload_form(obj);
1547             } else if (obj.object) {
1548                 M.core_filepicker.active_filepicker = scope;
1549                 scope.viewbar_set_enabled(false);
1550                 scope.parse_repository_options(obj);
1551                 scope.create_object_container(obj.object);
1552             } else if (obj.list) {
1553                 scope.viewbar_set_enabled(true);
1554                 scope.parse_repository_options(obj);
1555                 scope.view_files();
1556             }
1557         },
1558         list: function(args) {
1559             if (!args) {
1560                 args = {};
1561             }
1562             if (!args.repo_id) {
1563                 args.repo_id = this.active_repo.id;
1564             }
1565             this.request({
1566                 action: 'list',
1567                 client_id: this.options.client_id,
1568                 repository_id: args.repo_id,
1569                 path: args.path,
1570                 page: args.page,
1571                 scope: this,
1572                 callback: this.display_response
1573             }, true);
1574         },
1575         populate_licenses_select: function(node) {
1576             if (!node) {
1577                 return;
1578             }
1579             node.setContent('');
1580             var licenses = this.options.licenses;
1581             var recentlicense = this.get_preference('recentlicense');
1582             if (recentlicense) {
1583                 this.options.defaultlicense=recentlicense;
1584             }
1585             for (var i in licenses) {
1586                 var option = Y.Node.create('<option/>').
1587                     set('selected', (this.options.defaultlicense==licenses[i].shortname)).
1588                     set('value', licenses[i].shortname).
1589                     setContent(licenses[i].fullname);
1590                 node.appendChild(option)
1591             }
1592         },
1593         set_selected_license: function(node, value) {
1594             var licenseset = false;
1595             node.all('option').each(function(el) {
1596                 if (el.get('value')==value || el.getContent()==value) {
1597                     el.set('selected', true);
1598                     licenseset = true;
1599                 }
1600             });
1601             if (!licenseset) {
1602                 // we did not find the value in the list
1603                 var recentlicense = this.get_preference('recentlicense');
1604                 node.all('option[selected]').set('selected', false);
1605                 node.all('option[value='+recentlicense+']').set('selected', true);
1606             }
1607         },
1608         create_object_container: function(data) {
1609             var content = this.fpnode.one('.fp-content');
1610             content.setContent('');
1611             //var str = '<object data="'+data.src+'" type="'+data.type+'" width="98%" height="98%" id="container_object" class="fp-object-container mdl-align"></object>';
1612             var container = Y.Node.create('<object/>').
1613                 setAttrs({data:data.src, type:data.type, id:'container_object'}).
1614                 addClass('fp-object-container');
1615             content.setContent('').appendChild(container);
1616         },
1617         create_upload_form: function(data) {
1618             var client_id = this.options.client_id;
1619             var id = data.upload.id+'_'+client_id;
1620             var content = this.fpnode.one('.fp-content');
1621             content.setContent(M.core_filepicker.templates.uploadform);
1622
1623             content.all('.fp-file,.fp-saveas,.fp-setauthor,.fp-setlicense').each(function (node) {
1624                 node.all('label').set('for', node.one('input,select').generateID());
1625             });
1626             content.one('form').set('id', id);
1627             content.one('.fp-file input').set('name', 'repo_upload_file');
1628             if (data.upload.label && content.one('.fp-file label')) {
1629                 content.one('.fp-file label').setContent(data.upload.label);
1630             }
1631             content.one('.fp-saveas input').set('name', 'title');
1632             content.one('.fp-setauthor input').setAttrs({name:'author', value:this.options.author});
1633             content.one('.fp-setlicense select').set('name', 'license');
1634             this.populate_licenses_select(content.one('.fp-setlicense select'))
1635             // append hidden inputs to the upload form
1636             content.one('form').appendChild(Y.Node.create('<input/>').
1637                 setAttrs({type:'hidden',name:'itemid',value:this.options.itemid}));
1638             var types = this.options.accepted_types;
1639             for (var i in types) {
1640                 content.one('form').appendChild(Y.Node.create('<input/>').
1641                     setAttrs({type:'hidden',name:'accepted_types[]',value:types[i]}));
1642             }
1643
1644             var scope = this;
1645             content.one('.fp-upload-btn').on('click', function(e) {
1646                 e.preventDefault();
1647                 var license = content.one('.fp-setlicense select');
1648
1649                 this.set_preference('recentlicense', license.get('value'));
1650                 if (!content.one('.fp-file input').get('value')) {
1651                     scope.print_msg(M.str.repository.nofilesattached, 'error');
1652                     return false;
1653                 }
1654                 this.hide_header();
1655                 scope.request({
1656                         scope: scope,
1657                         action:'upload',
1658                         client_id: client_id,
1659                         params: {'savepath':scope.options.savepath},
1660                         repository_id: scope.active_repo.id,
1661                         form: {id: id, upload:true},
1662                         onerror: function(id, o, args) {
1663                             scope.create_upload_form(data);
1664                         },
1665                         callback: function(id, o, args) {
1666                             if (o.event == 'fileexists') {
1667                                 scope.create_upload_form(data);
1668                                 scope.process_existing_file(o);
1669                                 return;
1670                             }
1671                             if (scope.options.editor_target&&scope.options.env=='editor') {
1672                                 scope.options.editor_target.value=o.url;
1673                                 scope.options.editor_target.onchange();
1674                             }
1675                             scope.hide();
1676                             o.client_id = client_id;
1677                             var formcallback_scope = args.scope.options.magicscope ? args.scope.options.magicscope : args.scope;
1678                             scope.options.formcallback.apply(formcallback_scope, [o]);
1679                         }
1680                 }, true);
1681             }, this);
1682         },
1683         /** setting handlers and labels for elements in toolbar. Called once during the initial render of filepicker */
1684         setup_toolbar: function() {
1685             var client_id = this.options.client_id;
1686             var toolbar = this.fpnode.one('.fp-toolbar');
1687             toolbar.one('.fp-tb-logout').one('a,button').on('click', function(e) {
1688                 e.preventDefault();
1689                 if (!this.active_repo.nologin) {
1690                     this.hide_header();
1691                     this.request({
1692                         action:'logout',
1693                         client_id: this.options.client_id,
1694                         repository_id: this.active_repo.id,
1695                         path:'',
1696                         callback: this.display_response
1697                     }, true);
1698                 }
1699             }, this);
1700             toolbar.one('.fp-tb-refresh').one('a,button').on('click', function(e) {
1701                 e.preventDefault();
1702                 if (!this.active_repo.norefresh) {
1703                     this.list();
1704                 }
1705             }, this);
1706             toolbar.one('.fp-tb-search form').
1707                 set('method', 'POST').
1708                 set('id', 'fp-tb-search-'+client_id).
1709                 on('submit', function(e) {
1710                     e.preventDefault();
1711                     if (!this.active_repo.nosearch) {
1712                         this.request({
1713                             scope: this,
1714                             action:'search',
1715                             client_id: this.options.client_id,
1716                             repository_id: this.active_repo.id,
1717                             form: {id: 'fp-tb-search-'+client_id, upload:false, useDisabled:true},
1718                             callback: this.display_response
1719                         }, true);
1720                     }
1721                 }, this);
1722
1723             // it does not matter what kind of element is .fp-tb-manage, we create a dummy <a>
1724             // element and use it to open url on click event
1725             var managelnk = Y.Node.create('<a/>').
1726                 setAttrs({id:'fp-tb-manage-'+client_id+'-link', target:'_blank'}).
1727                 setStyle('display', 'none');
1728             toolbar.append(managelnk);
1729             toolbar.one('.fp-tb-manage').one('a,button').
1730                 on('click', function(e) {
1731                     e.preventDefault();
1732                     managelnk.simulate('click')
1733                 });
1734
1735             // same with .fp-tb-help
1736             var helplnk = Y.Node.create('<a/>').
1737                 setAttrs({id:'fp-tb-help-'+client_id+'-link', target:'_blank'}).
1738                 setStyle('display', 'none');
1739             toolbar.append(helplnk);
1740             toolbar.one('.fp-tb-manage').one('a,button').
1741                 on('click', function(e) {
1742                     e.preventDefault();
1743                     helplnk.simulate('click')
1744                 });
1745         },
1746         hide_header: function() {
1747             if (this.fpnode.one('.fp-toolbar')) {
1748                 this.fpnode.one('.fp-toolbar').addClass('empty');
1749             }
1750             if (this.pathbar) {
1751                 this.pathbar.setContent('').addClass('empty');
1752             }
1753         },
1754         print_header: function() {
1755             var r = this.active_repo;
1756             var scope = this;
1757             var client_id = this.options.client_id;
1758             this.hide_header();
1759             this.print_path();
1760             var toolbar = this.fpnode.one('.fp-toolbar');
1761             if (!toolbar) { return; }
1762
1763             var enable_tb_control = function(node, enabled) {
1764                 if (!node) { return; }
1765                 node.addClassIf('disabled', !enabled).addClassIf('enabled', enabled)
1766                 if (enabled) {
1767                     toolbar.removeClass('empty');
1768                 }
1769             }
1770
1771             // TODO 'back' permanently disabled for now. Note, flickr_public uses 'Logout' for it!
1772             enable_tb_control(toolbar.one('.fp-tb-back'), false);
1773
1774             // search form
1775             enable_tb_control(toolbar.one('.fp-tb-search'), !r.nosearch);
1776             if(!r.nosearch) {
1777                 var searchform = toolbar.one('.fp-tb-search form');
1778                 searchform.setContent('');
1779                 this.request({
1780                     scope: this,
1781                     action:'searchform',
1782                     repository_id: this.active_repo.id,
1783                     callback: function(id, obj, args) {
1784                         if (obj.repo_id == scope.active_repo.id && obj.form) {
1785                             // if we did not jump to another repository meanwhile
1786                             searchform.setContent(obj.form);
1787                             // Highlight search text when user click for search.
1788                             var searchnode = searchform.one('input[name="s"]');
1789                             if (searchnode) {
1790                                 searchnode.once('click', function(e) {
1791                                     e.preventDefault();
1792                                     this.select();
1793                                 });
1794                             }
1795                         }
1796                     }
1797                 }, false);
1798             }
1799
1800             // refresh button
1801             // weather we use cache for this instance, this button will reload listing anyway
1802             enable_tb_control(toolbar.one('.fp-tb-refresh'), !r.norefresh);
1803
1804             // login button
1805             enable_tb_control(toolbar.one('.fp-tb-logout'), !r.nologin);
1806             if (!r.nologin) {
1807                 var label = r.logouttext ? r.logouttext : M.str.repository.logout;
1808                 toolbar.one('.fp-tb-logout').one('a,button').setContent(label)
1809             }
1810
1811             // manage url
1812             enable_tb_control(toolbar.one('.fp-tb-manage'), r.manage);
1813             Y.one('#fp-tb-manage-'+client_id+'-link').set('href', r.manage);
1814
1815             // help url
1816             enable_tb_control(toolbar.one('.fp-tb-help'), r.help);
1817             Y.one('#fp-tb-help-'+client_id+'-link').set('href', r.help);
1818         },
1819         print_path: function() {
1820             if (!this.pathbar) {
1821                 return;
1822             }
1823             this.pathbar.setContent('').addClass('empty');
1824             var p = this.filepath;
1825             if (p && p.length!=0 && this.viewmode != 2) {
1826                 for(var i = 0; i < p.length; i++) {
1827                     var el = this.pathnode.cloneNode(true);
1828                     this.pathbar.appendChild(el);
1829                     if (i == 0) {
1830                         el.addClass('first');
1831                     }
1832                     if (i == p.length-1) {
1833                         el.addClass('last');
1834                     }
1835                     if (i%2) {
1836                         el.addClass('even');
1837                     } else {
1838                         el.addClass('odd');
1839                     }
1840                     el.all('.fp-path-folder-name').setContent(p[i].name);
1841                     el.on('click',
1842                             function(e, path) {
1843                                 e.preventDefault();
1844                                 this.list({'path':path});
1845                             },
1846                         this, p[i].path);
1847                 }
1848                 this.pathbar.removeClass('empty');
1849             }
1850         },
1851         hide: function() {
1852             this.selectui.hide();
1853             if (this.process_dlg) {
1854                 this.process_dlg.hide();
1855             }
1856             if (this.msg_dlg) {
1857                 this.msg_dlg.hide();
1858             }
1859             this.mainui.hide();
1860         },
1861         show: function() {
1862             if (this.fpnode) {
1863                 this.hide();
1864                 this.mainui.show();
1865                 this.show_recent_repository();
1866             } else {
1867                 this.launch();
1868             }
1869         },
1870         launch: function() {
1871             this.render();
1872         },
1873         show_recent_repository: function() {
1874             this.hide_header();
1875             this.viewbar_set_enabled(false);
1876             var repository_id = this.get_preference('recentrepository');
1877             this.viewmode = this.get_preference('recentviewmode');
1878             if (this.viewmode != 2 && this.viewmode != 3) {
1879                 this.viewmode = 1;
1880             }
1881             if (this.options.repositories[repository_id]) {
1882                 this.list({'repo_id':repository_id});
1883             }
1884         },
1885         get_preference: function (name) {
1886             if (this.options.userprefs[name]) {
1887                 return this.options.userprefs[name];
1888             } else {
1889                 return false;
1890             }
1891         },
1892         set_preference: function(name, value) {
1893             if (this.options.userprefs[name] != value) {
1894                 M.util.set_user_preference('filepicker_' + name, value);
1895                 this.options.userprefs[name] = value;
1896             }
1897         }
1898     });
1899     var loading = Y.one('#filepicker-loading-'+options.client_id);
1900     if (loading) {
1901         loading.setStyle('display', 'none');
1902     }
1903     M.core_filepicker.instances[options.client_id] = new FilePickerHelper(options);
1904 };