repository/filepicker.js

   1 // YUI3 File Picker module for moodle
   2 // Author: Dongsheng Cai <dongsheng@moodle.com>
   3
   4 /**
   5  *
   6  * File Picker UI
   7  * =====
   8  * this.fpnode, contains reference to filepicker Node, non-empty if and only if rendered
   9  * this.api, stores the URL to make ajax request
  10  * this.mainui, YUI Panel
  11  * this.selectnode, contains reference to select-file Node
  12  * this.selectui, YUI Panel for selecting particular file
  13  * this.msg_dlg, YUI Panel for error or info message
  14  * this.process_dlg, YUI Panel for processing existing filename
  15  * this.treeview, YUI Treeview
  16  * this.viewmode, store current view mode
  17  * this.pathbar, reference to the Node with path bar
  18  * this.pathnode, a Node element representing one folder in a path bar (not attached anywhere, just used for template)
  19  * this.currentpath, the current path in the repository (or last requested path)
  20  *
  21  * Filepicker options:
  22  * =====
  23  * this.options.client_id, the instance id
  24  * this.options.contextid
  25  * this.options.itemid
  26  * this.options.repositories, stores all repositories displaied in file picker
  27  * this.options.formcallback
  28  *
  29  * Active repository options
  30  * =====
  31  * this.active_repo.id
  32  * this.active_repo.nosearch
  33  * this.active_repo.norefresh
  34  * this.active_repo.nologin
  35  * this.active_repo.help
  36  * this.active_repo.manage
  37  *
  38  * Server responses
  39  * =====
  40  * this.filelist, cached filelist
  41  * this.pages
  42  * this.page
  43  * this.filepath, current path (each element of the array is a part of the breadcrumb)
  44  * this.logindata, cached login form
  45  */
  46
  47 YUI.add('moodle-core_filepicker', function(Y) {
  48     /** help function to extract width/height style as a number, not as a string */
  49     Y.Node.prototype.getStylePx = function(attr) {
  50         var style = this.getStyle(attr);
  51         if (''+style == '0' || ''+style == '0px') {
  52             return 0;
  53         }
  54         var matches = style.match(/^([\d\.]+)px$/)
  55         if (matches && parseFloat(matches[1])) {
  56             return parseFloat(matches[1]);
  57         }
  58         return null;
  59     }
  60
  61     /** if condition is met, the class is added to the node, otherwise - removed */
  62     Y.Node.prototype.addClassIf = function(className, condition) {
  63         if (condition) {
  64             this.addClass(className);
  65         } else {
  66             this.removeClass(className);
  67         }
  68         return this;
  69     }
  70
  71     /** sets the width(height) of the node considering existing minWidth(minHeight) */
  72     Y.Node.prototype.setStyleAdv = function(stylename, value) {
  73         var stylenameCap = stylename.substr(0,1).toUpperCase() + stylename.substr(1, stylename.length-1).toLowerCase();
  74         this.setStyle(stylename, '' + Math.max(value, this.getStylePx('min'+stylenameCap)) + 'px')
  75         return this;
  76     }
  77
  78     /** set image source to src, if there is preview, remember it in lazyloading.
  79      *  If there is a preview and it was already loaded, use it. */
  80     Y.Node.prototype.setImgSrc = function(src, realsrc, lazyloading) {
  81         if (realsrc) {
  82             if (M.core_filepicker.loadedpreviews[realsrc]) {
  83                 this.set('src', realsrc).addClass('realpreview');
  84                 return this;
  85             } else {
  86                 if (!this.get('id')) {
  87                     this.generateID();
  88                 }
  89                 lazyloading[this.get('id')] = realsrc;
  90             }
  91         }
  92         this.set('src', src);
  93         return this;
  94     }
  95
  96     /**
  97      * Replaces the image source with preview. If the image is inside the treeview, we need
  98      * also to update the html property of corresponding YAHOO.widget.HTMLNode
  99      * @param array lazyloading array containing associations of imgnodeid->realsrc
 100      */
 101     Y.Node.prototype.setImgRealSrc = function(lazyloading) {
 102         if (this.get('id') && lazyloading[this.get('id')]) {
 103             var newsrc = lazyloading[this.get('id')];
 104             M.core_filepicker.loadedpreviews[newsrc] = true;
 105             this.set('src', newsrc).addClass('realpreview');
 106             delete lazyloading[this.get('id')];
 107             var treenode = this.ancestor('.fp-treeview')
 108             if (treenode && treenode.get('parentNode').treeview) {
 109                 treenode.get('parentNode').treeview.getRoot().refreshPreviews(this.get('id'), newsrc);
 110             }
 111         }
 112         return this;
 113     }
 114
 115     /** scan TreeView to find which node contains image with id=imgid and replace it's html
 116      * with the new image source. */
 117     Y.YUI2.widget.Node.prototype.refreshPreviews = function(imgid, newsrc, regex) {
 118         if (!regex) {
 119             regex = new RegExp("<img\\s[^>]*id=\""+imgid+"\"[^>]*?(/?)>", "im");
 120         }
 121         if (this.expanded || this.isLeaf) {
 122             var html = this.getContentHtml();
 123             if (html && this.setHtml && regex.test(html)) {
 124                 var newhtml = this.html.replace(regex, "<img id=\""+imgid+"\" src=\""+newsrc+"\" class=\"realpreview\"$1>", html);
 125                 this.setHtml(newhtml);
 126                 return true;
 127             }
 128             if (!this.isLeaf && this.children) {
 129                 for(var c in this.children) {
 130                     if (this.children[c].refreshPreviews(imgid, newsrc, regex)) {
 131                         return true;
 132                     }
 133                 }
 134             }
 135         }
 136         return false;
 137     }
 138
 139     /**
 140      * Displays a list of files (used by filepicker, filemanager) inside the Node
 141      *
 142      * @param array options
 143      *   viewmode : 1 - icons, 2 - tree, 3 - table
 144      *   appendonly : whether fileslist need to be appended instead of replacing the existing content
 145      *   filenode : Node element that contains template for displaying one file
 146      *   callback : On click callback. The element of the fileslist array will be passed as argument
 147      *   rightclickcallback : On right click callback (optional).
 148      *   callbackcontext : context where callbacks are executed
 149      *   sortable : whether content may be sortable (in table mode)
 150      *   dynload : allow dynamic load for tree view
 151      *   filepath : for pre-building of tree view - the path to the current directory in filepicker format
 152      *   treeview_dynload : callback to function to dynamically load the folder in tree view
 153      *   classnamecallback : callback to function that returns the class name for an element
 154      * @param array fileslist array of files to show, each array element may have attributes:
 155      *   title or fullname : file name
 156      *   shorttitle (optional) : display file name
 157      *   thumbnail : url of image
 158      *   icon : url of icon image
 159      *   thumbnail_width : width of thumbnail, default 90
 160      *   thumbnail_height : height of thumbnail, default 90
 161      *   thumbnail_alt : TODO not needed!
 162      *   description or thumbnail_title : alt text
 163      * @param array lazyloading : reference to the array with lazy loading images
 164      */
 165     Y.Node.prototype.fp_display_filelist = function(options, fileslist, lazyloading) {
 166         var viewmodeclassnames = {1:'fp-iconview', 2:'fp-treeview', 3:'fp-tableview'};
 167         var classname = viewmodeclassnames[options.viewmode];
 168         var scope = this;
 169         /** return whether file is a folder (different attributes in FileManager and FilePicker) */
 170         var file_is_folder = function(node) {
 171             if (node.children) {return true;}
 172             if (node.type && node.type == 'folder') {return true;}
 173             return false;
 174         };
 175         /** return the name of the file (different attributes in FileManager and FilePicker) */
 176         var file_get_filename = function(node) {
 177             return node.title ? node.title : node.fullname;
 178         };
 179         /** return display name of the file (different attributes in FileManager and FilePicker) */
 180         var file_get_displayname = function(node) {
 181             var displayname = node.shorttitle ? node.shorttitle : file_get_filename(node);
 182             return Y.Escape.html(displayname);
 183         };
 184         /** return file description (different attributes in FileManager and FilePicker) */
 185         var file_get_description = function(node) {
 186             var description = '';
 187             if (node.description) {
 188                 description = node.description;
 189             } else if (node.thumbnail_title) {
 190                 description = node.thumbnail_title;
 191             } else {
 192                 description = file_get_filename(node);
 193             }
 194             return Y.Escape.html(description);
 195         };
 196         /** help funciton for tree view */
 197         var build_tree = function(node, level) {
 198             // prepare file name with icon
 199             var el = Y.Node.create('<div/>');
 200             el.appendChild(options.filenode.cloneNode(true));
 201
 202             el.one('.fp-filename').setContent(file_get_displayname(node));
 203             // TODO add tooltip with node.title or node.thumbnail_title
 204             var tmpnodedata = {className:options.classnamecallback(node)};
 205             el.get('children').addClass(tmpnodedata.className);
 206             if (node.icon) {
 207                 el.one('.fp-icon').appendChild(Y.Node.create('<img/>'));
 208                 el.one('.fp-icon img').setImgSrc(node.icon, node.realicon, lazyloading);
 209             }
 210             // create node
 211             tmpnodedata.html = el.getContent();
 212             var tmpNode = new Y.YUI2.widget.HTMLNode(tmpnodedata, level, false);
 213             if (node.dynamicLoadComplete) {
 214                 tmpNode.dynamicLoadComplete = true;
 215             }
 216             tmpNode.fileinfo = node;
 217             tmpNode.isLeaf = !file_is_folder(node);
 218             if (!tmpNode.isLeaf) {
 219                 if(node.expanded) {
 220                     tmpNode.expand();
 221                 }
 222                 tmpNode.path = node.path ? node.path : (node.filepath ? node.filepath : '');
 223                 for(var c in node.children) {
 224                     build_tree(node.children[c], tmpNode);
 225                 }
 226             }
 227         };
 228         /** initialize tree view */
 229         var initialize_tree_view = function() {
 230             var parentid = scope.one('.'+classname).get('id');
 231             // TODO MDL-32736 use YUI3 gallery TreeView
 232             scope.treeview = new Y.YUI2.widget.TreeView(parentid);
 233             if (options.dynload) {
 234                 scope.treeview.setDynamicLoad(Y.bind(options.treeview_dynload, options.callbackcontext), 1);
 235             }
 236             scope.treeview.singleNodeHighlight = true;
 237             if (options.filepath && options.filepath.length) {
 238                 // we just jumped from icon/details view, we need to show all parents
 239                 // we extract as much information as possible from filepath and filelist
 240                 // and send additional requests to retrieve siblings for parent folders
 241                 var mytree = {};
 242                 var mytreeel = null;
 243                 for (var i in options.filepath) {
 244                     if (mytreeel == null) {
 245                         mytreeel = mytree;
 246                     } else {
 247                         mytreeel.children = [{}];
 248                         mytreeel = mytreeel.children[0];
 249                     }
 250                     var pathelement = options.filepath[i];
 251                     mytreeel.path = pathelement.path;
 252                     mytreeel.title = pathelement.name;
 253                     mytreeel.icon = pathelement.icon;
 254                     mytreeel.dynamicLoadComplete = true; // we will call it manually
 255                     mytreeel.expanded = true;
 256                 }
 257                 mytreeel.children = fileslist;
 258                 build_tree(mytree, scope.treeview.getRoot());
 259                 // manually call dynload for parent elements in the tree so we can load other siblings
 260                 if (options.dynload) {
 261                     var root = scope.treeview.getRoot();
 262                     while (root && root.children && root.children.length) {
 263                         root = root.children[0];
 264                         if (root.path == mytreeel.path) {
 265                             root.origpath = options.filepath;
 266                             root.origlist = fileslist;
 267                         } else if (!root.isLeaf && root.expanded) {
 268                             Y.bind(options.treeview_dynload, options.callbackcontext)(root, null);
 269                         }
 270                     }
 271                 }
 272             } else {
 273                 // there is no path information, just display all elements as a list, without hierarchy
 274                 for(k in fileslist) {
 275                     build_tree(fileslist[k], scope.treeview.getRoot());
 276                 }
 277             }
 278             scope.treeview.subscribe('clickEvent', function(e){
 279                 e.node.highlight(false);
 280                 var callback = options.callback;
 281                 if (options.rightclickcallback && e.event.target &&
 282                         Y.Node(e.event.target).ancestor('.fp-treeview .fp-contextmenu', true)) {
 283                     callback = options.rightclickcallback;
 284                 }
 285                 Y.bind(callback, options.callbackcontext)(e, e.node.fileinfo);
 286                 Y.YUI2.util.Event.stopEvent(e.event)
 287             });
 288             // TODO MDL-32736 support right click
 289             /*if (options.rightclickcallback) {
 290                 scope.treeview.subscribe('dblClickEvent', function(e){
 291                     e.node.highlight(false);
 292                     Y.bind(options.rightclickcallback, options.callbackcontext)(e, e.node.fileinfo);
 293                 });
 294             }*/
 295             scope.treeview.draw();
 296         };
 297         /** formatting function for table view */
 298         var formatValue = function (o){
 299             if (o.data[''+o.column.key+'_f_s']) {return o.data[''+o.column.key+'_f_s'];}
 300             else if (o.data[''+o.column.key+'_f']) {return o.data[''+o.column.key+'_f'];}
 301             else if (o.value) {return o.value;}
 302             else {return '';}
 303         };
 304         /** formatting function for table view */
 305         var formatTitle = function(o) {
 306             var el = Y.Node.create('<div/>');
 307             el.appendChild(options.filenode.cloneNode(true)); // TODO not node but string!
 308             el.get('children').addClass(o.data['classname']);
 309             el.one('.fp-filename').setContent(o.value);
 310             if (o.data['icon']) {
 311                 el.one('.fp-icon').appendChild(Y.Node.create('<img/>'));
 312                 el.one('.fp-icon img').setImgSrc(o.data['icon'], o.data['realicon'], lazyloading);
 313             }
 314             if (options.rightclickcallback) {
 315                 el.get('children').addClass('fp-hascontextmenu');
 316             }
 317             // TODO add tooltip with o.data['title'] (o.value) or o.data['thumbnail_title']
 318             return el.getContent();
 319         }
 320         /** sorting function for table view */
 321         var sortFoldersFirst = function(a, b, desc) {
 322             if (a.get('isfolder') && !b.get('isfolder')) {
 323                 return -1;
 324             }
 325             if (!a.get('isfolder') && b.get('isfolder')) {
 326                 return 1;
 327             }
 328             var aa = a.get(this.key), bb = b.get(this.key), dir = desc ? -1 : 1;
 329             return (aa > bb) ? dir : ((aa < bb) ? -dir : 0);
 330         }
 331         /** initialize table view */
 332         var initialize_table_view = function() {
 333             var cols = [
 334                 {key: "displayname", label: M.str.moodle.name, allowHTML: true, formatter: formatTitle,
 335                     sortable: true, sortFn: sortFoldersFirst},
 336                 {key: "datemodified", label: M.str.moodle.lastmodified, allowHTML: true, formatter: formatValue,
 337                     sortable: true, sortFn: sortFoldersFirst},
 338                 {key: "size", label: M.str.repository.size, allowHTML: true, formatter: formatValue,
 339                     sortable: true, sortFn: sortFoldersFirst},
 340                 {key: "mimetype", label: M.str.repository.type, allowHTML: true,
 341                     sortable: true, sortFn: sortFoldersFirst}
 342             ];
 343             for (var k in fileslist) {
 344                 // to speed up sorting and formatting
 345                 fileslist[k].displayname = file_get_displayname(fileslist[k]);
 346                 fileslist[k].isfolder = file_is_folder(fileslist[k]);
 347                 fileslist[k].classname = options.classnamecallback(fileslist[k]);
 348             }
 349             scope.tableview = new Y.DataTable({columns: cols, data: fileslist});
 350             scope.tableview.delegate('click', function (e, tableview) {
 351                 var record = tableview.getRecord(e.currentTarget.get('id'));
 352                 if (record) {
 353                     var callback = options.callback;
 354                     if (options.rightclickcallback && e.target.ancestor('.fp-tableview .fp-contextmenu', true)) {
 355                         callback = options.rightclickcallback;
 356                     }
 357                     Y.bind(callback, this)(e, record.getAttrs());
 358                 }
 359             }, 'tr', options.callbackcontext, scope.tableview);
 360             if (options.rightclickcallback) {
 361                 scope.tableview.delegate('contextmenu', function (e, tableview) {
 362                     var record = tableview.getRecord(e.currentTarget.get('id'));
 363                     if (record) { Y.bind(options.rightclickcallback, this)(e, record.getAttrs()); }
 364                 }, 'tr', options.callbackcontext, scope.tableview);
 365             }
 366         }
 367         /** append items in table view mode */
 368         var append_files_table = function() {
 369             var parentnode = scope.one('.'+classname);
 370             scope.tableview.render(parentnode);
 371             scope.tableview.sortable = options.sortable ? true : false;
 372         };
 373         /** append items in tree view mode */
 374         var append_files_tree = function() {
 375             if (options.appendonly) {
 376                 var parentnode = scope.treeview.getRoot();
 377                 if (scope.treeview.getHighlightedNode()) {
 378                     parentnode = scope.treeview.getHighlightedNode();
 379                     if (parentnode.isLeaf) {parentnode = parentnode.parent;}
 380                 }
 381                 for (var k in fileslist) {
 382                     build_tree(fileslist[k], parentnode);
 383                 }
 384                 scope.treeview.draw();
 385             } else {
 386                 // otherwise files were already added in initialize_tree_view()
 387             }
 388         }
 389         /** append items in icon view mode */
 390         var append_files_icons = function() {
 391             parent = scope.one('.'+classname);
 392             for (var k in fileslist) {
 393                 var node = fileslist[k];
 394                 var element = options.filenode.cloneNode(true);
 395                 parent.appendChild(element);
 396                 element.addClass(options.classnamecallback(node));
 397                 var filenamediv = element.one('.fp-filename');
 398                 filenamediv.setContent(file_get_displayname(node));
 399                 var imgdiv = element.one('.fp-thumbnail'), width, height, src;
 400                 if (node.thumbnail) {
 401                     width = node.thumbnail_width ? node.thumbnail_width : 90;
 402                     height = node.thumbnail_height ? node.thumbnail_height : 90;
 403                     src = node.thumbnail;
 404                 } else {
 405                     width = 16;
 406                     height = 16;
 407                     src = node.icon;
 408                 }
 409                 filenamediv.setStyleAdv('width', width);
 410                 imgdiv.setStyleAdv('width', width).setStyleAdv('height', height);
 411                 var img = Y.Node.create('<img/>').setAttrs({
 412                         title: file_get_description(node),
 413                         alt: Y.Escape.html(node.thumbnail_alt ? node.thumbnail_alt : file_get_filename(node))}).
 414                     setStyle('maxWidth', ''+width+'px').
 415                     setStyle('maxHeight', ''+height+'px');
 416                 img.setImgSrc(src, node.realthumbnail, lazyloading);
 417                 imgdiv.appendChild(img);
 418                 element.on('click', function(e, nd) {
 419                     if (options.rightclickcallback && e.target.ancestor('.fp-iconview .fp-contextmenu', true)) {
 420                         Y.bind(options.rightclickcallback, this)(e, nd);
 421                     } else {
 422                         Y.bind(options.callback, this)(e, nd);
 423                     }
 424                 }, options.callbackcontext, node);
 425                 if (options.rightclickcallback) {
 426                     element.on('contextmenu', options.rightclickcallback, options.callbackcontext, node);
 427                 }
 428             }
 429         }
 430
 431         // initialize files view
 432         if (!options.appendonly) {
 433             var parent = Y.Node.create('<div/>').addClass(classname);
 434             this.setContent('').appendChild(parent);
 435             parent.generateID();
 436             if (options.viewmode == 2) {
 437                 initialize_tree_view();
 438             } else if (options.viewmode == 3) {
 439                 initialize_table_view();
 440             } else {
 441                 // nothing to initialize for icon view
 442             }
 443         }
 444
 445         // append files to the list
 446         if (options.viewmode == 2) {
 447             append_files_tree();
 448         } else if (options.viewmode == 3) {
 449             append_files_table();
 450         } else {
 451             append_files_icons();
 452         }
 453
 454     }
 455
 456     /**
 457      * creates a node and adds it to the div with id #filesskin. This is needed for CSS to be able
 458      * to overwrite YUI skin styles (instead of using !important that does not work in IE)
 459      */
 460     Y.Node.createWithFilesSkin = function(node) {
 461         if (!Y.one('#filesskin')) {
 462             Y.one(document.body).appendChild(Y.Node.create('<div/>').set('id', 'filesskin'));
 463         }
 464         return Y.one('#filesskin').appendChild(Y.Node.create(node));
 465     }
 466 }, '@VERSION@', {
 467     requires:['base', 'node', 'yui2-treeview', 'panel', 'cookie', 'datatable', 'datatable-sort']
 468 });
 469
 470 M.core_filepicker = M.core_filepicker || {};
 471
 472 /**
 473  * instances of file pickers used on page
 474  */
 475 M.core_filepicker.instances = M.core_filepicker.instances || {};
 476 M.core_filepicker.active_filepicker = null;
 477
 478 /**
 479  * HTML Templates to use in FilePicker
 480  */
 481 M.core_filepicker.templates = M.core_filepicker.templates || {};
 482
 483 /**
 484  * Array of image sources for real previews (realicon or realthumbnail) that are already loaded
 485  */
 486 M.core_filepicker.loadedpreviews = M.core_filepicker.loadedpreviews || {};
 487
 488 /**
 489 * Set selected file info
 490 *
 491 * @parma object file info
 492 */
 493 M.core_filepicker.select_file = function(file) {
 494     M.core_filepicker.active_filepicker.select_file(file);
 495 }
 496
 497 /**
 498  * Init and show file picker
 499  */
 500 M.core_filepicker.show = function(Y, options) {
 501     if (!M.core_filepicker.instances[options.client_id]) {
 502         M.core_filepicker.init(Y, options);
 503     }
 504     M.core_filepicker.instances[options.client_id].show();
 505 };
 506
 507 M.core_filepicker.set_templates = function(Y, templates) {
 508     for (var templid in templates) {
 509         M.core_filepicker.templates[templid] = templates[templid];
 510     }
 511 }
 512
 513 /**
 514  * Add new file picker to current instances
 515  */
 516 M.core_filepicker.init = function(Y, options) {
 517     var FilePickerHelper = function(options) {
 518         FilePickerHelper.superclass.constructor.apply(this, arguments);
 519     };
 520
 521     FilePickerHelper.NAME = "FilePickerHelper";
 522     FilePickerHelper.ATTRS = {
 523         options: {},
 524         lang: {}
 525     };
 526
 527     Y.extend(FilePickerHelper, Y.Base, {
 528         api: M.cfg.wwwroot+'/repository/repository_ajax.php',
 529         cached_responses: {},
 530         waitinterval : null, // When the loading template is being displayed and its animation is running this will be an interval instance.
 531         initializer: function(options) {
 532             this.options = options;
 533             if (!this.options.savepath) {
 534                 this.options.savepath = '/';
 535             }
 536         },
 537
 538         destructor: function() {
 539         },
 540
 541         request: function(args, redraw) {
 542             var api = (args.api ? args.api : this.api) + '?action='+args.action;
 543             var params = {};
 544             var scope = args['scope'] ? args['scope'] : this;
 545             params['repo_id']=args.repository_id;
 546             params['p'] = args.path?args.path:'';
 547             params['page'] = args.page?args.page:'';
 548             params['env']=this.options.env;
 549             // the form element only accept certain file types
 550             params['accepted_types']=this.options.accepted_types;
 551             params['sesskey'] = M.cfg.sesskey;
 552             params['client_id'] = args.client_id;
 553             params['itemid'] = this.options.itemid?this.options.itemid:0;
 554             params['maxbytes'] = this.options.maxbytes?this.options.maxbytes:-1;
 555             // The unlimited value of areamaxbytes is -1, it is defined by FILE_AREA_MAX_BYTES_UNLIMITED.
 556             params['areamaxbytes'] = this.options.areamaxbytes ? this.options.areamaxbytes : -1;
 557             if (this.options.context && this.options.context.id) {
 558                 params['ctx_id'] = this.options.context.id;
 559             }
 560             if (args['params']) {
 561                 for (i in args['params']) {
 562                     params[i] = args['params'][i];
 563                 }
 564             }
 565             if (args.action == 'upload') {
 566                 var list = [];
 567                 for(var k in params) {
 568                     var value = params[k];
 569                     if(value instanceof Array) {
 570                         for(var i in value) {
 571                             list.push(k+'[]='+value[i]);
 572                         }
 573                     } else {
 574                         list.push(k+'='+value);
 575                     }
 576                 }
 577                 params = list.join('&');
 578             } else {
 579                 params = build_querystring(params);
 580             }
 581             var cfg = {
 582                 method: 'POST',
 583                 on: {
 584                     complete: function(id,o,p) {
 585                         if (!o) {
 586                             // TODO
 587                             alert('IO FATAL');
 588                             return;
 589                         }
 590                         var data = null;
 591                         try {
 592                             data = Y.JSON.parse(o.responseText);
 593                         } catch(e) {
 594                             scope.print_msg(M.str.repository.invalidjson, 'error');
 595                             scope.display_error(M.str.repository.invalidjson+'<pre>'+stripHTML(o.responseText)+'</pre>', 'invalidjson')
 596                             return;
 597                         }
 598                         // error checking
 599                         if (data && data.error) {
 600                             scope.print_msg(data.error, 'error');
 601                             if (args.onerror) {
 602                                 args.onerror(id,data,p);
 603                             } else {
 604                                 this.fpnode.one('.fp-content').setContent('');
 605                             }
 606                             return;
 607                         } else {
 608                             if (data.msg) {
 609                                 scope.print_msg(data.msg, 'info');
 610                             }
 611                             // cache result if applicable
 612                             if (args.action != 'upload' && data.allowcaching) {
 613                                 scope.cached_responses[params] = data;
 614                             }
 615                             // invoke callback
 616                             args.callback(id,data,p);
 617                         }
 618                     }
 619                 },
 620                 arguments: {
 621                     scope: scope
 622                 },
 623                 headers: {
 624                     'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'
 625                 },
 626                 data: params,
 627                 context: this
 628             };
 629             if (args.form) {
 630                 cfg.form = args.form;
 631             }
 632             // check if result of the same request has been already cached. If not, request it
 633             // (never applicable in case of form submission and/or upload action):
 634             if (!args.form && args.action != 'upload' && scope.cached_responses[params]) {
 635                 args.callback(null, scope.cached_responses[params], {scope: scope})
 636             } else {
 637                 Y.io(api, cfg);
 638                 if (redraw) {
 639                     this.wait();
 640                 }
 641             }
 642         },
 643         /** displays the dialog and processes rename/overwrite if there is a file with the same name in the same filearea*/
 644         process_existing_file: function(data) {
 645             var scope = this;
 646             var handleOverwrite = function(e) {
 647                 // overwrite
 648                 e.preventDefault();
 649                 var data = this.process_dlg.dialogdata;
 650                 var params = {}
 651                 params['existingfilename'] = data.existingfile.filename;
 652                 params['existingfilepath'] = data.existingfile.filepath;
 653                 params['newfilename'] = data.newfile.filename;
 654                 params['newfilepath'] = data.newfile.filepath;
 655                 this.hide_header();
 656                 this.request({
 657                     'params': params,
 658                     'scope': this,
 659                     'action':'overwrite',
 660                     'path': '',
 661                     'client_id': this.options.client_id,
 662                     'repository_id': this.active_repo.id,
 663                     'callback': function(id, o, args) {
 664                         scope.hide();
 665                         if (scope.options.editor_target && scope.options.env == 'editor') {
 666                             // editor needs to update url
 667                             scope.options.editor_target.value = data.existingfile.url;
 668                             scope.options.editor_target.onchange();
 669                         }
 670                         var fileinfo = {'client_id':scope.options.client_id,
 671                                 'url':data.existingfile.url,
 672                                 'file':data.existingfile.filename};
 673                         var formcallback_scope = scope.options.magicscope ? scope.options.magicscope : scope;
 674                         scope.options.formcallback.apply(formcallback_scope, [fileinfo]);
 675                     }
 676                 }, true);
 677             }
 678             var handleRename = function(e) {
 679                 // inserts file with the new name
 680                 e.preventDefault();
 681                 var scope = this;
 682                 var data = this.process_dlg.dialogdata;
 683                 if (scope.options.editor_target && scope.options.env == 'editor') {
 684                     scope.options.editor_target.value = data.newfile.url;
 685                     scope.options.editor_target.onchange();
 686                 }
 687                 scope.hide();
 688                 var formcallback_scope = scope.options.magicscope ? scope.options.magicscope : scope;
 689                 var fileinfo = {'client_id':scope.options.client_id,
 690                                 'url':data.newfile.url,
 691                                 'file':data.newfile.filename};
 692                 scope.options.formcallback.apply(formcallback_scope, [fileinfo]);
 693             }
 694             var handleCancel = function(e) {
 695                 // Delete tmp file
 696                 e.preventDefault();
 697                 var params = {};
 698                 params['newfilename'] = this.process_dlg.dialogdata.newfile.filename;
 699                 params['newfilepath'] = this.process_dlg.dialogdata.newfile.filepath;
 700                 this.request({
 701                     'params': params,
 702                     'scope': this,
 703                     'action':'deletetmpfile',
 704                     'path': '',
 705                     'client_id': this.options.client_id,
 706                     'repository_id': this.active_repo.id,
 707                     'callback': function(id, o, args) {
 708                         // let it be in background, from user point of view nothing is happenning
 709                     }
 710                 }, false);
 711                 this.process_dlg.hide();
 712                 this.selectui.hide();
 713             }
 714             if (!this.process_dlg) {
 715                 this.process_dlg_node = Y.Node.createWithFilesSkin(M.core_filepicker.templates.processexistingfile);
 716                 var node = this.process_dlg_node;
 717                 node.generateID();
 718                 this.process_dlg = new M.core.dialogue({
 719                     draggable    : true,
 720                     bodyContent  : node,
 721                     headerContent: M.str.repository.fileexistsdialogheader,
 722                     centered     : true,
 723                     modal        : true,
 724                     visible      : false,
 725                     zIndex       : this.options.zIndex
 726                 });
 727                 node.one('.fp-dlg-butoverwrite').on('click', handleOverwrite, this);
 728                 node.one('.fp-dlg-butrename').on('click', handleRename, this);
 729                 node.one('.fp-dlg-butcancel').on('click', handleCancel, this);
 730                 if (this.options.env == 'editor') {
 731                     node.one('.fp-dlg-text').setContent(M.str.repository.fileexistsdialog_editor);
 732                 } else {
 733                     node.one('.fp-dlg-text').setContent(M.str.repository.fileexistsdialog_filemanager);
 734                 }
 735             }
 736             this.selectnode.removeClass('loading');
 737             this.process_dlg.dialogdata = data;
 738             this.process_dlg_node.one('.fp-dlg-butrename').setContent(M.util.get_string('renameto', 'repository', data.newfile.filename));
 739             this.process_dlg.show();
 740         },
 741         /** displays error instead of filepicker contents */
 742         display_error: function(errortext, errorcode) {
 743             this.fpnode.one('.fp-content').setContent(M.core_filepicker.templates.error);
 744             this.fpnode.one('.fp-content .fp-error').
 745                 addClass(errorcode).
 746                 setContent(Y.Escape.html(errortext));
 747         },
 748         /** displays message in a popup */
 749         print_msg: function(msg, type) {
 750             var header = M.str.moodle.error;
 751             if (type != 'error') {
 752                 type = 'info'; // one of only two types excepted
 753                 header = M.str.moodle.info;
 754             }
 755             if (!this.msg_dlg) {
 756                 this.msg_dlg_node = Y.Node.createWithFilesSkin(M.core_filepicker.templates.message);
 757                 this.msg_dlg_node.generateID();
 758
 759                 this.msg_dlg = new M.core.dialogue({
 760                     draggable    : true,
 761                     bodyContent  : this.msg_dlg_node,
 762                     centered     : true,
 763                     modal        : true,
 764                     visible      : false,
 765                     zIndex       : this.options.zIndex
 766                 });
 767                 this.msg_dlg_node.one('.fp-msg-butok').on('click', function(e) {
 768                     e.preventDefault();
 769                     this.msg_dlg.hide();
 770                 }, this);
 771             }
 772
 773             this.msg_dlg.set('headerContent', header);
 774             this.msg_dlg_node.removeClass('fp-msg-info').removeClass('fp-msg-error').addClass('fp-msg-'+type)
 775             this.msg_dlg_node.one('.fp-msg-text').setContent(Y.Escape.html(msg));
 776             this.msg_dlg.show();
 777         },
 778         view_files: function(appenditems) {
 779             this.viewbar_set_enabled(true);
 780             this.print_path();
 781             /*if ((appenditems == null) && (!this.filelist || !this.filelist.length) && !this.active_repo.hasmorepages) {
 782              // TODO do it via classes and adjust for each view mode!
 783                 // If there are no items and no next page, just display status message and quit
 784                 this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
 785                 return;
 786             }*/
 787             if (this.viewmode == 2) {
 788                 this.view_as_list(appenditems);
 789             } else if (this.viewmode == 3) {
 790                 this.view_as_table(appenditems);
 791             } else {
 792                 this.view_as_icons(appenditems);
 793             }
 794             this.fpnode.one('.fp-content').setAttribute('tabindex', '0');
 795             // Temporary fix for IE8 until MDL-41229 is integrated.
 796             // The role dialog is needed for screen reader to read
 797             // the filepicker's content (MDL-41232).
 798             this.fpnode.one('.fp-content').setAttribute('role', 'dialog');
 799             this.fpnode.one('.fp-content').setAttribute('aria-live', 'assertive');
 800             // End of temporary fix.
 801             this.fpnode.one('.fp-content').focus();
 802             // display/hide the link for requesting next page
 803             if (!appenditems && this.active_repo.hasmorepages) {
 804                 if (!this.fpnode.one('.fp-content .fp-nextpage')) {
 805                     this.fpnode.one('.fp-content').append(M.core_filepicker.templates.nextpage);
 806                 }
 807                 this.fpnode.one('.fp-content .fp-nextpage').one('a,button').on('click', function(e) {
 808                     e.preventDefault();
 809                     this.fpnode.one('.fp-content .fp-nextpage').addClass('loading');
 810                     this.request_next_page();
 811                 }, this);
 812             }
 813             if (!this.active_repo.hasmorepages && this.fpnode.one('.fp-content .fp-nextpage')) {
 814                 this.fpnode.one('.fp-content .fp-nextpage').remove();
 815             }
 816             if (this.fpnode.one('.fp-content .fp-nextpage')) {
 817                 this.fpnode.one('.fp-content .fp-nextpage').removeClass('loading');
 818             }
 819             this.content_scrolled();
 820         },
 821         content_scrolled: function(e) {
 822             setTimeout(Y.bind(function() {
 823                 if (this.processingimages) {
 824                     return;
 825                 }
 826                 this.processingimages = true;
 827                 var scope = this,
 828                     fpcontent = this.fpnode.one('.fp-content'),
 829                     fpcontenty = fpcontent.getY(),
 830                     fpcontentheight = fpcontent.getStylePx('height'),
 831                     nextpage = fpcontent.one('.fp-nextpage'),
 832                     is_node_visible = function(node) {
 833                         var offset = node.getY()-fpcontenty;
 834                         if (offset <= fpcontentheight && (offset >=0 || offset+node.getStylePx('height')>=0)) {
 835                             return true;
 836                         }
 837                         return false;
 838                     };
 839                 // automatically load next page when 'more' link becomes visible
 840                 if (nextpage && !nextpage.hasClass('loading') && is_node_visible(nextpage)) {
 841                     nextpage.one('a,button').simulate('click');
 842                 }
 843                 // replace src for visible images that need to be lazy-loaded
 844                 if (scope.lazyloading) {
 845                     fpcontent.all('img').each( function(node) {
 846                         if (node.get('id') && scope.lazyloading[node.get('id')] && is_node_visible(node)) {
 847                             node.setImgRealSrc(scope.lazyloading);
 848                         }
 849                     });
 850                 }
 851                 this.processingimages = false;
 852             }, this), 200)
 853         },
 854         treeview_dynload: function(node, cb) {
 855             var retrieved_children = {};
 856             if (node.children) {
 857                 for (var i in node.children) {
 858                     retrieved_children[node.children[i].path] = node.children[i];
 859                 }
 860             }
 861             this.request({
 862                 action:'list',
 863                 client_id: this.options.client_id,
 864                 repository_id: this.active_repo.id,
 865                 path:node.path?node.path:'',
 866                 page:node.page?args.page:'',
 867                 scope:this,
 868                 callback: function(id, obj, args) {
 869                     var list = obj.list;
 870                     var scope = args.scope;
 871                     // check that user did not leave the view mode before recieving this response
 872                     if (!(scope.active_repo.id == obj.repo_id && scope.viewmode == 2 && node && node.getChildrenEl())) {
 873                         return;
 874                     }
 875                     if (cb != null) { // (in manual mode do not update current path)
 876                         scope.viewbar_set_enabled(true);
 877                         scope.parse_repository_options(obj);
 878                     }
 879                     node.highlight(false);
 880                     node.origlist = obj.list ? obj.list : null;
 881                     node.origpath = obj.path ? obj.path : null;
 882                     node.children = [];
 883                     for(k in list) {
 884                         if (list[k].children && retrieved_children[list[k].path]) {
 885                             // if this child is a folder and has already been retrieved
 886                             node.children[node.children.length] = retrieved_children[list[k].path];
 887                         } else {
 888                             // append new file to the list
 889                             scope.view_as_list([list[k]]);
 890                         }
 891                     }
 892                     if (cb == null) {
 893                         node.refresh();
 894                     } else {
 895                         // invoke callback requested by TreeView component
 896                         cb();
 897                     }
 898                     scope.content_scrolled();
 899                 }
 900             }, false);
 901         },
 902        classnamecallback : function(node) {
 903             var classname = '';
 904             if (node.children) {
 905                 classname = classname + ' fp-folder';
 906             }
 907             if (node.isref) {
 908                 classname = classname + ' fp-isreference';
 909             }
 910             if (node.refcount) {
 911                 classname = classname + ' fp-hasreferences';
 912             }
 913             if (node.originalmissing) {
 914                 classname = classname + ' fp-originalmissing';
 915             }
 916             return Y.Lang.trim(classname);
 917         },
 918         /** displays list of files in tree (list) view mode. If param appenditems is specified,
 919          * appends those items to the end of the list. Otherwise (default behaviour)
 920          * clears the contents and displays the items from this.filelist */
 921         view_as_list: function(appenditems) {
 922             var list = (appenditems != null) ? appenditems : this.filelist;
 923             this.viewmode = 2;
 924             if (!this.filelist || this.filelist.length==0 && (!this.filepath || !this.filepath.length)) {
 925                 this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
 926                 return;
 927             }
 928
 929             var element_template = Y.Node.create(M.core_filepicker.templates.listfilename);
 930             var options = {
 931                 viewmode : this.viewmode,
 932                 appendonly : (appenditems != null),
 933                 filenode : element_template,
 934                 callbackcontext : this,
 935                 callback : function(e, node) {
 936                     // TODO MDL-32736 e is not an event here but an object with properties 'event' and 'node'
 937                     if (!node.children) {
 938                         if (e.node.parent && e.node.parent.origpath) {
 939                             // set the current path
 940                             this.filepath = e.node.parent.origpath;
 941                             this.filelist = e.node.parent.origlist;
 942                             this.print_path();
 943                         }
 944                         this.select_file(node);
 945                     } else {
 946                         // save current path and filelist (in case we want to jump to other viewmode)
 947                         this.filepath = e.node.origpath;
 948                         this.filelist = e.node.origlist;
 949                         this.currentpath = e.node.path;
 950                         this.print_path();
 951                         this.content_scrolled();
 952                     }
 953                 },
 954                 classnamecallback : this.classnamecallback,
 955                 dynload : this.active_repo.dynload,
 956                 filepath : this.filepath,
 957                 treeview_dynload : this.treeview_dynload
 958             };
 959             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
 960         },
 961         /** displays list of files in icon view mode. If param appenditems is specified,
 962          * appends those items to the end of the list. Otherwise (default behaviour)
 963          * clears the contents and displays the items from this.filelist */
 964         view_as_icons: function(appenditems) {
 965             this.viewmode = 1;
 966             var list = (appenditems != null) ? appenditems : this.filelist;
 967             var element_template = Y.Node.create(M.core_filepicker.templates.iconfilename);
 968             if ((appenditems == null) && (!this.filelist || !this.filelist.length)) {
 969                 this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
 970                 return;
 971             }
 972             var options = {
 973                 viewmode : this.viewmode,
 974                 appendonly : (appenditems != null),
 975                 filenode : element_template,
 976                 callbackcontext : this,
 977                 callback : function(e, node) {
 978                     if (e.preventDefault) {
 979                         e.preventDefault();
 980                     }
 981                     if(node.children) {
 982                         if (this.active_repo.dynload) {
 983                             this.list({'path':node.path});
 984                         } else {
 985                             this.filelist = node.children;
 986                             this.view_files();
 987                         }
 988                     } else {
 989                         this.select_file(node);
 990                     }
 991                 },
 992                 classnamecallback : this.classnamecallback
 993             };
 994             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
 995         },
 996         /** displays list of files in table view mode. If param appenditems is specified,
 997          * appends those items to the end of the list. Otherwise (default behaviour)
 998          * clears the contents and displays the items from this.filelist */
 999         view_as_table: function(appenditems) {
1000             this.viewmode = 3;
1001             var list = (appenditems != null) ? appenditems : this.filelist;
1002             if (!appenditems && (!this.filelist || this.filelist.length==0) && !this.active_repo.hasmorepages) {
1003                 this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
1004                 return;
1005             }
1006             var element_template = Y.Node.create(M.core_filepicker.templates.listfilename);
1007             var options = {
1008                 viewmode : this.viewmode,
1009                 appendonly : (appenditems != null),
1010                 filenode : element_template,
1011                 callbackcontext : this,
1012                 sortable : !this.active_repo.hasmorepages,
1013                 callback : function(e, node) {
1014                     if (e.preventDefault) {e.preventDefault();}
1015                     if (node.children) {
1016                         if (this.active_repo.dynload) {
1017                             this.list({'path':node.path});
1018                         } else {
1019                             this.filelist = node.children;
1020                             this.view_files();
1021                         }
1022                     } else {
1023                         this.select_file(node);
1024                     }
1025                 },
1026                 classnamecallback : this.classnamecallback
1027             };
1028             this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
1029         },
1030         /** If more than one page available, requests and displays the files from the next page */
1031         request_next_page: function() {
1032             if (!this.active_repo.hasmorepages || this.active_repo.nextpagerequested) {
1033                 // nothing to load
1034                 return;
1035             }
1036             this.active_repo.nextpagerequested = true;
1037             var nextpage = this.active_repo.page+1;
1038             var args = {
1039                 page: nextpage,
1040                 repo_id: this.active_repo.id
1041             };
1042             var action = this.active_repo.issearchresult ? 'search' : 'list';
1043             this.request({
1044                 path: this.currentpath,
1045                 scope: this,
1046                 action: action,
1047                 client_id: this.options.client_id,
1048                 repository_id: args.repo_id,
1049                 params: args,
1050                 callback: function(id, obj, args) {
1051                     var scope = args.scope;
1052                     // Check that we are still in the same repository and are expecting this page. We have no way
1053                     // to compare the requested page and the one returned, so we assume that if the last chunk
1054                     // of the breadcrumb is similar, then we probably are on the same page.
1055                     var samepage = true;
1056                     if (obj.path && scope.filepath) {
1057                         var pathbefore = scope.filepath[scope.filepath.length-1];
1058                         var pathafter = obj.path[obj.path.length-1];
1059                         if (pathbefore.path != pathafter.path) {
1060                             samepage = false;
1061                         }
1062                     }
1063                     if (scope.active_repo.hasmorepages && obj.list && obj.page &&
1064                             obj.repo_id == scope.active_repo.id &&
1065                             obj.page == scope.active_repo.page+1 && samepage) {
1066                         scope.parse_repository_options(obj, true);
1067                         scope.view_files(obj.list)
1068                     }
1069                 }
1070             }, false);
1071         },
1072         select_file: function(args) {
1073             var argstitle = args.title;
1074             // Limit the string length so it fits nicely on mobile devices
1075             var titlelength = 30;
1076             if (argstitle.length > titlelength) {
1077                 argstitle = argstitle.substring(0, titlelength) + '...';
1078             }
1079             Y.one('#fp-file_label_'+this.options.client_id).setContent(Y.Escape.html(M.str.repository.select+' '+argstitle));
1080             this.selectui.show();
1081             Y.one('#'+this.selectnode.get('id')).focus();
1082             var client_id = this.options.client_id;
1083             var selectnode = this.selectnode;
1084             var return_types = this.options.repositories[this.active_repo.id].return_types;
1085             selectnode.removeClass('loading');
1086             selectnode.one('.fp-saveas input').set('value', args.title);
1087
1088             var imgnode = Y.Node.create('<img/>').
1089                 set('src', args.realthumbnail ? args.realthumbnail : args.thumbnail).
1090                 setStyle('maxHeight', ''+(args.thumbnail_height ? args.thumbnail_height : 90)+'px').
1091                 setStyle('maxWidth', ''+(args.thumbnail_width ? args.thumbnail_width : 90)+'px');
1092             selectnode.one('.fp-thumbnail').setContent('').appendChild(imgnode);
1093
1094             // filelink is the array of file-link-types available for this repository in this env
1095             var filelinktypes = [2/*FILE_INTERNAL*/,1/*FILE_EXTERNAL*/,4/*FILE_REFERENCE*/];
1096             var filelink = {}, firstfilelink = null, filelinkcount = 0;
1097             for (var i in filelinktypes) {
1098                 var allowed = (return_types & filelinktypes[i]) &&
1099                     (this.options.return_types & filelinktypes[i]);
1100                 if (filelinktypes[i] == 1/*FILE_EXTERNAL*/ && !this.options.externallink && this.options.env == 'editor') {
1101                     // special configuration setting 'repositoryallowexternallinks' may prevent
1102                     // using external links in editor environment
1103                     allowed = false;
1104                 }
1105                 filelink[filelinktypes[i]] = allowed;
1106                 firstfilelink = (firstfilelink==null && allowed) ? filelinktypes[i] : firstfilelink;
1107                 filelinkcount += allowed ? 1 : 0;
1108             }
1109             // make radio buttons enabled if this file-link-type is available and only if there are more than one file-link-type option
1110             // check the first available file-link-type option
1111             for (var linktype in filelink) {
1112                 var el = selectnode.one('.fp-linktype-'+linktype);
1113                 el.addClassIf('uneditable', !(filelink[linktype] && filelinkcount>1));
1114                 el.one('input').set('disabled', (filelink[linktype] && filelinkcount>1) ? '' : 'disabled').
1115                     set('checked', (firstfilelink == linktype) ? 'checked' : '').simulate('change')
1116             }
1117
1118             // TODO MDL-32532: attributes 'hasauthor' and 'haslicense' need to be obsolete,
1119             selectnode.one('.fp-setauthor input').set('value', args.author ? args.author : this.options.author);
1120             this.set_selected_license(selectnode.one('.fp-setlicense'), args.license);
1121             selectnode.one('form #filesource-'+client_id).set('value', args.source);
1122
1123             // display static information about a file (when known)
1124             var attrs = ['datemodified','datecreated','size','license','author','dimensions'];
1125             for (var i in attrs) {
1126                 if (selectnode.one('.fp-'+attrs[i])) {
1127                     var value = (args[attrs[i]+'_f']) ? args[attrs[i]+'_f'] : (args[attrs[i]] ? args[attrs[i]] : '');
1128                     selectnode.one('.fp-'+attrs[i]).addClassIf('fp-unknown', ''+value == '')
1129                         .one('.fp-value').setContent(Y.Escape.html(value));
1130                 }
1131             }
1132         },
1133         setup_select_file: function() {
1134             var client_id = this.options.client_id;
1135             var selectnode = this.selectnode;
1136             var getfile = selectnode.one('.fp-select-confirm');
1137             // bind labels with corresponding inputs
1138             selectnode.all('.fp-saveas,.fp-linktype-2,.fp-linktype-1,.fp-linktype-4,.fp-setauthor,.fp-setlicense').each(function (node) {
1139                 node.all('label').set('for', node.one('input,select').generateID());
1140             });
1141             selectnode.one('.fp-linktype-2 input').setAttrs({value: 2, name: 'linktype'});
1142             selectnode.one('.fp-linktype-1 input').setAttrs({value: 1, name: 'linktype'});
1143             selectnode.one('.fp-linktype-4 input').setAttrs({value: 4, name: 'linktype'});
1144             var changelinktype = function(e) {
1145                 if (e.currentTarget.get('checked')) {
1146                     var allowinputs = e.currentTarget.get('value') != 1/*FILE_EXTERNAL*/;
1147                     selectnode.all('.fp-setauthor,.fp-setlicense,.fp-saveas').each(function(node){
1148                         node.addClassIf('uneditable', !allowinputs);
1149                         node.all('input,select').set('disabled', allowinputs?'':'disabled');
1150                     });
1151                 }
1152             };
1153             selectnode.all('.fp-linktype-2,.fp-linktype-1,.fp-linktype-4').each(function (node) {
1154                 node.one('input').on('change', changelinktype, this);
1155             });
1156             this.populate_licenses_select(selectnode.one('.fp-setlicense select'));
1157             // register event on clicking submit button
1158             getfile.on('click', function(e) {
1159                 e.preventDefault();
1160                 var client_id = this.options.client_id;
1161                 var scope = this;
1162                 var repository_id = this.active_repo.id;
1163                 var title = selectnode.one('.fp-saveas input').get('value');
1164                 var filesource = selectnode.one('form #filesource-'+client_id).get('value');
1165                 var params = {'title':title, 'source':filesource, 'savepath': this.options.savepath};
1166                 var license = selectnode.one('.fp-setlicense select');
1167                 if (license) {
1168                     params['license'] = license.get('value');
1169                     var origlicense = selectnode.one('.fp-license .fp-value');
1170                     if (origlicense) {
1171                         origlicense = origlicense.getContent();
1172                     }
1173                     this.set_preference('recentlicense', license.get('value'));
1174                 }
1175                 params['author'] = selectnode.one('.fp-setauthor input').get('value');
1176
1177                 var return_types = this.options.repositories[this.active_repo.id].return_types;
1178                 if (this.options.env == 'editor') {
1179                     // in editor, images are stored in '/' only
1180                     params.savepath = '/';
1181                 }
1182                 if ((this.options.externallink || this.options.env != 'editor') &&
1183                             (return_types & 1/*FILE_EXTERNAL*/) &&
1184                             (this.options.return_types & 1/*FILE_EXTERNAL*/) &&
1185                             selectnode.one('.fp-linktype-1 input').get('checked')) {
1186                     params['linkexternal'] = 'yes';
1187                 } else if ((return_types & 4/*FILE_REFERENCE*/) &&
1188                         (this.options.return_types & 4/*FILE_REFERENCE*/) &&
1189                         selectnode.one('.fp-linktype-4 input').get('checked')) {
1190                     params['usefilereference'] = '1';
1191                 }
1192
1193                 selectnode.addClass('loading');
1194                 this.request({
1195                     action:'download',
1196                     client_id: client_id,
1197                     repository_id: repository_id,
1198                     'params': params,
1199                     onerror: function(id, obj, args) {
1200                         selectnode.removeClass('loading');
1201                         scope.selectui.hide();
1202                     },
1203                     callback: function(id, obj, args) {
1204                         selectnode.removeClass('loading');
1205                         if (obj.event == 'fileexists') {
1206                             scope.process_existing_file(obj);
1207                             return;
1208                         }
1209                         if (scope.options.editor_target && scope.options.env=='editor') {
1210                             scope.options.editor_target.value=obj.url;
1211                             scope.options.editor_target.onchange();
1212                         }
1213                         scope.hide();
1214                         obj.client_id = client_id;
1215                         var formcallback_scope = args.scope.options.magicscope ? args.scope.options.magicscope : args.scope;
1216                         scope.options.formcallback.apply(formcallback_scope, [obj]);
1217                     }
1218                 }, false);
1219             }, this);
1220             var elform = selectnode.one('form');
1221             elform.appendChild(Y.Node.create('<input/>').
1222                 setAttrs({type:'hidden',id:'filesource-'+client_id}));
1223             elform.on('keydown', function(e) {
1224                 if (e.keyCode == 13) {
1225                     getfile.simulate('click');
1226                     e.preventDefault();
1227                 }
1228             }, this);
1229             var cancel = selectnode.one('.fp-select-cancel');
1230             cancel.on('click', function(e) {
1231                 e.preventDefault();
1232                 this.selectui.hide();
1233             }, this);
1234         },
1235         wait: function() {
1236             // First check there isn't already an interval in play, and if there is kill it now.
1237             if (this.waitinterval != null) {
1238                 clearInterval(this.waitinterval);
1239             }
1240             // Prepare the root node we will set content for and the loading template we want to display as a YUI node.
1241             var root = this.fpnode.one('.fp-content');
1242             var content = Y.Node.create(M.core_filepicker.templates.loading).addClass('fp-content-hidden').setStyle('opacity', 0);
1243             var count = 0;
1244             // Initiate an interval, we will have a count which will increment every 100 milliseconds.
1245             // Count 0 - the loading icon will have visibility set to hidden (invisible) and have an opacity of 0 (invisible also)
1246             // Count 5 - the visiblity will be switched to visible but opacity will still be at 0 (inivisible)
1247             // Counts 6 - 15 opacity will be increased by 0.1 making the loading icon visible over the period of a second
1248             // Count 16 - The interval will be cancelled.
1249             var interval = setInterval(function(){
1250                 if (!content || !root.contains(content) || count >= 15) {
1251                     clearInterval(interval);
1252                     return true;
1253                 }
1254                 if (count == 5) {
1255                     content.removeClass('fp-content-hidden');
1256                 } else if (count > 5) {
1257                     var opacity = parseFloat(content.getStyle('opacity'));
1258                     content.setStyle('opacity', opacity + 0.1);
1259                 }
1260                 count++;
1261                 return false;
1262             }, 100);
1263             // Store the wait interval so that we can check it in the future.
1264             this.waitinterval = interval;
1265             // Set the content to the loading template.
1266             root.setContent(content);
1267         },
1268         viewbar_set_enabled: function(mode) {
1269             var viewbar = this.fpnode.one('.fp-viewbar')
1270             if (viewbar) {
1271                 if (mode) {
1272                     viewbar.addClass('enabled').removeClass('disabled')
1273                 } else {
1274                     viewbar.removeClass('enabled').addClass('disabled')
1275                 }
1276             }
1277             this.fpnode.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').removeClass('checked')
1278             var modes = {1:'icons', 2:'tree', 3:'details'};
1279             this.fpnode.all('.fp-vb-'+modes[this.viewmode]).addClass('checked');
1280         },
1281         viewbar_clicked: function(e) {
1282             e.preventDefault();
1283             var viewbar = this.fpnode.one('.fp-viewbar')
1284             if (!viewbar || !viewbar.hasClass('disabled')) {
1285                 if (e.currentTarget.hasClass('fp-vb-tree')) {
1286                     this.viewmode = 2;
1287                 } else if (e.currentTarget.hasClass('fp-vb-details')) {
1288                     this.viewmode = 3;
1289                 } else {
1290                     this.viewmode = 1;
1291                 }
1292                 this.viewbar_set_enabled(true)
1293                 this.view_files();
1294                 this.set_preference('recentviewmode', this.viewmode);
1295             }
1296         },
1297         render: function() {
1298             var client_id = this.options.client_id;
1299             var fpid = "filepicker-"+ client_id;
1300             var labelid = 'fp-dialog-label_'+ client_id;
1301             this.fpnode = Y.Node.createWithFilesSkin(M.core_filepicker.templates.generallayout).
1302                 set('id', 'filepicker-'+client_id).set('aria-labelledby', labelid);
1303             this.mainui = new M.core.dialogue({
1304                 extraClasses : ['filepicker'],
1305                 draggable    : true,
1306                 bodyContent  : this.fpnode,
1307                 headerContent: '<span id="'+ labelid +'">'+ M.str.repository.filepicker +'</span>',
1308                 centered     : true,
1309                 modal        : true,
1310                 visible      : false,
1311                 width        : '873px',
1312                 responsiveWidth : 873,
1313                 height       : '558px',
1314                 zIndex       : this.options.zIndex
1315             });
1316
1317             // create panel for selecting a file (initially hidden)
1318             this.selectnode = Y.Node.createWithFilesSkin(M.core_filepicker.templates.selectlayout).
1319                 set('id', 'filepicker-select-'+client_id).
1320                 set('aria-live', 'assertive').
1321                 set('role', 'dialog');
1322
1323             var fplabel = 'fp-file_label_'+ client_id;
1324             this.selectui = new M.core.dialogue({
1325                 headerContent: '<span id="' + fplabel +'">'+M.str.repository.select+'</span>',
1326                 draggable    : true,
1327                 width        : '450px',
1328                 bodyContent  : this.selectnode,
1329                 centered     : true,
1330                 modal        : true,
1331                 visible      : false,
1332                 zIndex       : this.options.zIndex
1333             });
1334             Y.one('#'+this.selectnode.get('id')).setAttribute('aria-labelledby', fplabel);
1335             // event handler for lazy loading of thumbnails and next page
1336             this.fpnode.one('.fp-content').on(['scroll','resize'], this.content_scrolled, this);
1337             // save template for one path element and location of path bar
1338             if (this.fpnode.one('.fp-path-folder')) {
1339                 this.pathnode = this.fpnode.one('.fp-path-folder');
1340                 this.pathbar = this.pathnode.get('parentNode');
1341                 this.pathbar.removeChild(this.pathnode);
1342             }
1343             // assign callbacks for view mode switch buttons
1344             this.fpnode.one('.fp-vb-icons').on('click', this.viewbar_clicked, this);
1345             this.fpnode.one('.fp-vb-tree').on('click', this.viewbar_clicked, this);
1346             this.fpnode.one('.fp-vb-details').on('click', this.viewbar_clicked, this);
1347
1348             // assign callbacks for toolbar links
1349             this.setup_toolbar();
1350             this.setup_select_file();
1351             this.hide_header();
1352
1353             // processing repository listing
1354             // Resort the repositories by sortorder
1355             var sorted_repositories = [];
1356             for (var i in this.options.repositories) {
1357                 sorted_repositories[i] = this.options.repositories[i];
1358             }
1359             sorted_repositories.sort(function(a,b){return a.sortorder-b.sortorder});
1360             // extract one repository template and repeat it for all repositories available,
1361             // set name and icon and assign callbacks
1362             var reponode = this.fpnode.one('.fp-repo');
1363             if (reponode) {
1364                 var list = reponode.get('parentNode');
1365                 list.removeChild(reponode);
1366                 for (i in sorted_repositories) {
1367                     var repository = sorted_repositories[i];
1368                     var node = reponode.cloneNode(true);
1369                     list.appendChild(node);
1370                     node.
1371                         set('id', 'fp-repo-'+client_id+'-'+repository.id).
1372                         on('click', function(e, repository_id) {
1373                             e.preventDefault();
1374                             this.set_preference('recentrepository', repository_id);
1375                             this.hide_header();
1376                             this.list({'repo_id':repository_id});
1377                         }, this /*handler running scope*/, repository.id/*second argument of handler*/);
1378                     node.one('.fp-repo-name').setContent(Y.Escape.html(repository.name));
1379                     node.one('.fp-repo-icon').set('src', repository.icon);
1380                     if (i==0) {
1381                         node.addClass('first');
1382                     }
1383                     if (i==sorted_repositories.length-1) {
1384                         node.addClass('last');
1385                     }
1386                     if (i%2) {
1387                         node.addClass('even');
1388                     } else {
1389                         node.addClass('odd');
1390                     }
1391                 }
1392             }
1393             // display error if no repositories found
1394             if (sorted_repositories.length==0) {
1395                 this.display_error(M.str.repository.norepositoriesavailable, 'norepositoriesavailable')
1396             }
1397             // display repository that was used last time
1398             this.mainui.show();
1399             this.show_recent_repository();
1400         },
1401         parse_repository_options: function(data, appendtolist) {
1402             if (appendtolist) {
1403                 if (data.list) {
1404                     if (!this.filelist) {
1405                         this.filelist = [];
1406                     }
1407                     for (var i in data.list) {
1408                         this.filelist[this.filelist.length] = data.list[i];
1409                     }
1410                 }
1411             } else {
1412                 this.filelist = data.list?data.list:null;
1413                 this.lazyloading = {};
1414             }
1415             this.filepath = data.path?data.path:null;
1416             this.objecttag = data.object?data.object:null;
1417             this.active_repo = {};
1418             this.active_repo.issearchresult = data.issearchresult ? true : false;
1419             this.active_repo.dynload = data.dynload?data.dynload:false;
1420             this.active_repo.pages = Number(data.pages?data.pages:null);
1421             this.active_repo.page = Number(data.page?data.page:null);
1422             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))
1423             this.active_repo.id = data.repo_id?data.repo_id:null;
1424             this.active_repo.nosearch = (data.login || data.nosearch); // this is either login form or 'nosearch' attribute set
1425             this.active_repo.norefresh = (data.login || data.norefresh); // this is either login form or 'norefresh' attribute set
1426             this.active_repo.nologin = (data.login || data.nologin); // this is either login form or 'nologin' attribute is set
1427             this.active_repo.logouttext = data.logouttext?data.logouttext:null;
1428             this.active_repo.logouturl = (data.logouturl || '');
1429             this.active_repo.message = (data.message || '');
1430             this.active_repo.help = data.help?data.help:null;
1431             this.active_repo.manage = data.manage?data.manage:null;
1432             this.print_header();
1433         },
1434         print_login: function(data) {
1435             this.parse_repository_options(data);
1436             var client_id = this.options.client_id;
1437             var repository_id = data.repo_id;
1438             var l = this.logindata = data.login;
1439             var loginurl = '';
1440             var action = data['login_btn_action'] ? data['login_btn_action'] : 'login';
1441             var form_id = 'fp-form-'+client_id;
1442
1443             var loginform_node = Y.Node.create(M.core_filepicker.templates.loginform);
1444             loginform_node.one('form').set('id', form_id);
1445             this.fpnode.one('.fp-content').setContent('').appendChild(loginform_node);
1446             var templates = {
1447                 'popup' : loginform_node.one('.fp-login-popup'),
1448                 'textarea' : loginform_node.one('.fp-login-textarea'),
1449                 'select' : loginform_node.one('.fp-login-select'),
1450                 'text' : loginform_node.one('.fp-login-text'),
1451                 'radio' : loginform_node.one('.fp-login-radiogroup'),
1452                 'checkbox' : loginform_node.one('.fp-login-checkbox'),
1453                 'input' : loginform_node.one('.fp-login-input')
1454             };
1455             var container;
1456             for (var i in templates) {
1457                 if (templates[i]) {
1458                     container = templates[i].get('parentNode');
1459                     container.removeChild(templates[i]);
1460                 }
1461             }
1462
1463             for(var k in l) {
1464                 if (templates[l[k].type]) {
1465                     var node = templates[l[k].type].cloneNode(true);
1466                 } else {
1467                     node = templates['input'].cloneNode(true);
1468                 }
1469                 if (l[k].type == 'popup') {
1470                     // submit button
1471                     loginurl = l[k].url;
1472                     var popupbutton = node.one('button');
1473                     popupbutton.on('click', function(e){
1474                         M.core_filepicker.active_filepicker = this;
1475                         window.open(loginurl, 'repo_auth', 'location=0,status=0,width=500,height=300,scrollbars=yes');
1476                         e.preventDefault();
1477                     }, this);
1478                     loginform_node.one('form').on('keydown', function(e) {
1479                         if (e.keyCode == 13) {
1480                             popupbutton.simulate('click');
1481                             e.preventDefault();
1482                         }
1483                     }, this);
1484                     loginform_node.all('.fp-login-submit').remove();
1485                     action = 'popup';
1486                 } else if(l[k].type=='textarea') {
1487                     // textarea element
1488                     if (node.one('label')) {
1489                         node.one('label').set('for', l[k].id).setContent(l[k].label);
1490                     }
1491                     node.one('textarea').setAttrs({id:l[k].id, name:l[k].name});
1492                 } else if(l[k].type=='select') {
1493                     // select element
1494                     if (node.one('label')) {
1495                         node.one('label').set('for', l[k].id).setContent(l[k].label);
1496                     }
1497                     node.one('select').setAttrs({id:l[k].id, name:l[k].name}).setContent('');
1498                     for (i in l[k].options) {
1499                         node.one('select').appendChild(
1500                             Y.Node.create('<option/>').
1501                                 set('value', l[k].options[i].value).
1502                                 setContent(l[k].options[i].label));
1503                     }
1504                 } else if(l[k].type=='radio') {
1505                     // radio input element
1506                     node.all('label').setContent(l[k].label);
1507                     var list = l[k].value.split('|');
1508                     var labels = l[k].value_label.split('|');
1509                     var radionode = null;
1510                     for(var item in list) {
1511                         if (radionode == null) {
1512                             radionode = node.one('.fp-login-radio');
1513                             radionode.one('input').set('checked', 'checked');
1514                         } else {
1515                             var x = radionode.cloneNode(true);
1516                             radionode.insert(x, 'after');
1517                             radionode = x;
1518                             radionode.one('input').set('checked', '');
1519                         }
1520                         radionode.one('input').setAttrs({id:''+l[k].id+item, name:l[k].name,
1521                             type:l[k].type, value:list[item]});
1522                         radionode.all('label').setContent(labels[item]).set('for', ''+l[k].id+item)
1523                     }
1524                     if (radionode == null) {
1525                         node.one('.fp-login-radio').remove();
1526                     }
1527                 } else {
1528                     // input element
1529                     if (node.one('label')) { node.one('label').set('for', l[k].id).setContent(l[k].label) }
1530                     node.one('input').
1531                         set('type', l[k].type).
1532                         set('id', l[k].id).
1533                         set('name', l[k].name).
1534                         set('value', l[k].value?l[k].value:'')
1535                 }
1536                 container.appendChild(node);
1537             }
1538             // custom label text for submit button
1539             if (data['login_btn_label']) {
1540                 loginform_node.all('.fp-login-submit').setContent(data['login_btn_label'])
1541             }
1542             // register button action for login and search
1543             if (action == 'login' || action == 'search') {
1544                 loginform_node.one('.fp-login-submit').on('click', function(e){
1545                     e.preventDefault();
1546                     this.hide_header();
1547                     this.request({
1548                         'scope': this,
1549                         'action':(action == 'search') ? 'search' : 'signin',
1550                         'path': '',
1551                         'client_id': client_id,
1552                         'repository_id': repository_id,
1553                         'form': {id:form_id, upload:false, useDisabled:true},
1554                         'callback': this.display_response
1555                     }, true);
1556                 }, this);
1557             }
1558             // if 'Enter' is pressed in the form, simulate the button click
1559             if (loginform_node.one('.fp-login-submit')) {
1560                 loginform_node.one('form').on('keydown', function(e) {
1561                     if (e.keyCode == 13) {
1562                         loginform_node.one('.fp-login-submit').simulate('click')
1563                         e.preventDefault();
1564                     }
1565                 }, this);
1566             }
1567         },
1568         display_response: function(id, obj, args) {
1569             var scope = args.scope;
1570             // highlight the current repository in repositories list
1571             scope.fpnode.all('.fp-repo.active').removeClass('active');
1572             scope.fpnode.all('#fp-repo-'+scope.options.client_id+'-'+obj.repo_id).addClass('active')
1573             // add class repository_REPTYPE to the filepicker (for repository-specific styles)
1574             for (var i in scope.options.repositories) {
1575                 scope.fpnode.removeClass('repository_'+scope.options.repositories[i].type)
1576             }
1577             if (obj.repo_id && scope.options.repositories[obj.repo_id]) {
1578                 scope.fpnode.addClass('repository_'+scope.options.repositories[obj.repo_id].type)
1579             }
1580             Y.one('.file-picker .fp-repo-items').focus();
1581
1582             // display response
1583             if (obj.login) {
1584                 scope.viewbar_set_enabled(false);
1585                 scope.print_login(obj);
1586             } else if (obj.upload) {
1587                 scope.viewbar_set_enabled(false);
1588                 scope.parse_repository_options(obj);
1589                 scope.create_upload_form(obj);
1590             } else if (obj.object) {
1591                 M.core_filepicker.active_filepicker = scope;
1592                 scope.viewbar_set_enabled(false);
1593                 scope.parse_repository_options(obj);
1594                 scope.create_object_container(obj.object);
1595             } else if (obj.list) {
1596                 scope.viewbar_set_enabled(true);
1597                 scope.parse_repository_options(obj);
1598                 scope.view_files();
1599             }
1600         },
1601         list: function(args) {
1602             if (!args) {
1603                 args = {};
1604             }
1605             if (!args.repo_id) {
1606                 args.repo_id = this.active_repo.id;
1607             }
1608             if (!args.path) {
1609                 args.path = '';
1610             }
1611             this.currentpath = args.path;
1612             this.request({
1613                 action: 'list',
1614                 client_id: this.options.client_id,
1615                 repository_id: args.repo_id,
1616                 path: args.path,
1617                 page: args.page,
1618                 scope: this,
1619                 callback: this.display_response
1620             }, true);
1621         },
1622         populate_licenses_select: function(node) {
1623             if (!node) {
1624                 return;
1625             }
1626             node.setContent('');
1627             var licenses = this.options.licenses;
1628             var recentlicense = this.get_preference('recentlicense');
1629             if (recentlicense) {
1630                 this.options.defaultlicense=recentlicense;
1631             }
1632             for (var i in licenses) {
1633                 var option = Y.Node.create('<option/>').
1634                     set('selected', (this.options.defaultlicense==licenses[i].shortname)).
1635                     set('value', licenses[i].shortname).
1636                     setContent(Y.Escape.html(licenses[i].fullname));
1637                 node.appendChild(option)
1638             }
1639         },
1640         set_selected_license: function(node, value) {
1641             var licenseset = false;
1642             node.all('option').each(function(el) {
1643                 if (el.get('value')==value || el.getContent()==value) {
1644                     el.set('selected', true);
1645                     licenseset = true;
1646                 }
1647             });
1648             if (!licenseset) {
1649                 // we did not find the value in the list
1650                 var recentlicense = this.get_preference('recentlicense');
1651                 node.all('option[selected]').set('selected', false);
1652                 node.all('option[value='+recentlicense+']').set('selected', true);
1653             }
1654         },
1655         create_object_container: function(data) {
1656             var content = this.fpnode.one('.fp-content');
1657             content.setContent('');
1658             //var str = '<object data="'+data.src+'" type="'+data.type+'" width="98%" height="98%" id="container_object" class="fp-object-container mdl-align"></object>';
1659             var container = Y.Node.create('<object/>').
1660                 setAttrs({data:data.src, type:data.type, id:'container_object'}).
1661                 addClass('fp-object-container');
1662             content.setContent('').appendChild(container);
1663         },
1664         create_upload_form: function(data) {
1665             var client_id = this.options.client_id;
1666             var id = data.upload.id+'_'+client_id;
1667             var content = this.fpnode.one('.fp-content');
1668             var template_name = 'uploadform_'+this.options.repositories[data.repo_id].type;
1669             var template = M.core_filepicker.templates[template_name] || M.core_filepicker.templates['uploadform'];
1670             content.setContent(template);
1671
1672             content.all('.fp-file,.fp-saveas,.fp-setauthor,.fp-setlicense').each(function (node) {
1673                 node.all('label').set('for', node.one('input,select').generateID());
1674             });
1675             content.one('form').set('id', id);
1676             content.one('.fp-file input').set('name', 'repo_upload_file');
1677             if (data.upload.label && content.one('.fp-file label')) {
1678                 content.one('.fp-file label').setContent(data.upload.label);
1679             }
1680             content.one('.fp-saveas input').set('name', 'title');
1681             content.one('.fp-setauthor input').setAttrs({name:'author', value:this.options.author});
1682             content.one('.fp-setlicense select').set('name', 'license');
1683             this.populate_licenses_select(content.one('.fp-setlicense select'))
1684             // append hidden inputs to the upload form
1685             content.one('form').appendChild(Y.Node.create('<input/>').
1686                 setAttrs({type:'hidden',name:'itemid',value:this.options.itemid}));
1687             var types = this.options.accepted_types;
1688             for (var i in types) {
1689                 content.one('form').appendChild(Y.Node.create('<input/>').
1690                     setAttrs({type:'hidden',name:'accepted_types[]',value:types[i]}));
1691             }
1692
1693             var scope = this;
1694             content.one('.fp-upload-btn').on('click', function(e) {
1695                 e.preventDefault();
1696                 var license = content.one('.fp-setlicense select');
1697
1698                 this.set_preference('recentlicense', license.get('value'));
1699                 if (!content.one('.fp-file input').get('value')) {
1700                     scope.print_msg(M.str.repository.nofilesattached, 'error');
1701                     return false;
1702                 }
1703                 this.hide_header();
1704                 scope.request({
1705                         scope: scope,
1706                         action:'upload',
1707                         client_id: client_id,
1708                         params: {'savepath':scope.options.savepath},
1709                         repository_id: scope.active_repo.id,
1710                         form: {id: id, upload:true},
1711                         onerror: function(id, o, args) {
1712                             scope.create_upload_form(data);
1713                         },
1714                         callback: function(id, o, args) {
1715                             if (o.event == 'fileexists') {
1716                                 scope.create_upload_form(data);
1717                                 scope.process_existing_file(o);
1718                                 return;
1719                             }
1720                             if (scope.options.editor_target&&scope.options.env=='editor') {
1721                                 scope.options.editor_target.value=o.url;
1722                                 scope.options.editor_target.onchange();
1723                             }
1724                             scope.hide();
1725                             o.client_id = client_id;
1726                             var formcallback_scope = args.scope.options.magicscope ? args.scope.options.magicscope : args.scope;
1727                             scope.options.formcallback.apply(formcallback_scope, [o]);
1728                         }
1729                 }, true);
1730             }, this);
1731         },
1732         /** setting handlers and labels for elements in toolbar. Called once during the initial render of filepicker */
1733         setup_toolbar: function() {
1734             var client_id = this.options.client_id;
1735             var toolbar = this.fpnode.one('.fp-toolbar');
1736             toolbar.one('.fp-tb-logout').one('a,button').on('click', function(e) {
1737                 e.preventDefault();
1738                 if (!this.active_repo.nologin) {
1739                     this.hide_header();
1740                     this.request({
1741                         action:'logout',
1742                         client_id: this.options.client_id,
1743                         repository_id: this.active_repo.id,
1744                         path:'',
1745                         callback: this.display_response
1746                     }, true);
1747                 }
1748                 if (this.active_repo.logouturl) {
1749                     window.open(this.active_repo.logouturl, 'repo_auth', 'location=0,status=0,width=500,height=300,scrollbars=yes');
1750                 }
1751             }, this);
1752             toolbar.one('.fp-tb-refresh').one('a,button').on('click', function(e) {
1753                 e.preventDefault();
1754                 if (!this.active_repo.norefresh) {
1755                     this.list({ path: this.currentpath });
1756                 }
1757             }, this);
1758             toolbar.one('.fp-tb-search form').
1759                 set('method', 'POST').
1760                 set('id', 'fp-tb-search-'+client_id).
1761                 on('submit', function(e) {
1762                     e.preventDefault();
1763                     if (!this.active_repo.nosearch) {
1764                         this.request({
1765                             scope: this,
1766                             action:'search',
1767                             client_id: this.options.client_id,
1768                             repository_id: this.active_repo.id,
1769                             form: {id: 'fp-tb-search-'+client_id, upload:false, useDisabled:true},
1770                             callback: this.display_response
1771                         }, true);
1772                     }
1773             }, this);
1774
1775             // it does not matter what kind of element is .fp-tb-manage, we create a dummy <a>
1776             // element and use it to open url on click event
1777             var managelnk = Y.Node.create('<a/>').
1778                 setAttrs({id:'fp-tb-manage-'+client_id+'-link', target:'_blank'}).
1779                 setStyle('display', 'none');
1780             toolbar.append(managelnk);
1781             toolbar.one('.fp-tb-manage').one('a,button').
1782                 on('click', function(e) {
1783                     e.preventDefault();
1784                     managelnk.simulate('click')
1785                 });
1786
1787             // same with .fp-tb-help
1788             var helplnk = Y.Node.create('<a/>').
1789                 setAttrs({id:'fp-tb-help-'+client_id+'-link', target:'_blank'}).
1790                 setStyle('display', 'none');
1791             toolbar.append(helplnk);
1792             toolbar.one('.fp-tb-help').one('a,button').
1793                 on('click', function(e) {
1794                     e.preventDefault();
1795                     helplnk.simulate('click')
1796                 });
1797         },
1798         hide_header: function() {
1799             if (this.fpnode.one('.fp-toolbar')) {
1800                 this.fpnode.one('.fp-toolbar').addClass('empty');
1801             }
1802             if (this.pathbar) {
1803                 this.pathbar.setContent('').addClass('empty');
1804             }
1805         },
1806         print_header: function() {
1807             var r = this.active_repo;
1808             var scope = this;
1809             var client_id = this.options.client_id;
1810             this.hide_header();
1811             this.print_path();
1812             var toolbar = this.fpnode.one('.fp-toolbar');
1813             if (!toolbar) { return; }
1814
1815             var enable_tb_control = function(node, enabled) {
1816                 if (!node) { return; }
1817                 node.addClassIf('disabled', !enabled).addClassIf('enabled', enabled)
1818                 if (enabled) {
1819                     toolbar.removeClass('empty');
1820                 }
1821             }
1822
1823             // TODO 'back' permanently disabled for now. Note, flickr_public uses 'Logout' for it!
1824             enable_tb_control(toolbar.one('.fp-tb-back'), false);
1825
1826             // search form
1827             enable_tb_control(toolbar.one('.fp-tb-search'), !r.nosearch);
1828             if(!r.nosearch) {
1829                 var searchform = toolbar.one('.fp-tb-search form');
1830                 searchform.setContent('');
1831                 this.request({
1832                     scope: this,
1833                     action:'searchform',
1834                     repository_id: this.active_repo.id,
1835                     callback: function(id, obj, args) {
1836                         if (obj.repo_id == scope.active_repo.id && obj.form) {
1837                             // if we did not jump to another repository meanwhile
1838                             searchform.setContent(obj.form);
1839                             // Highlight search text when user click for search.
1840                             var searchnode = searchform.one('input[name="s"]');
1841                             if (searchnode) {
1842                                 searchnode.once('click', function(e) {
1843                                     e.preventDefault();
1844                                     this.select();
1845                                 });
1846                             }
1847                         }
1848                     }
1849                 }, false);
1850             }
1851
1852             // refresh button
1853             // weather we use cache for this instance, this button will reload listing anyway
1854             enable_tb_control(toolbar.one('.fp-tb-refresh'), !r.norefresh);
1855
1856             // login button
1857             enable_tb_control(toolbar.one('.fp-tb-logout'), !r.nologin);
1858             if (!r.nologin) {
1859                 var label = r.logouttext ? r.logouttext : M.str.repository.logout;
1860                 toolbar.one('.fp-tb-logout').one('a,button').setContent(label)
1861             }
1862
1863             // manage url
1864             enable_tb_control(toolbar.one('.fp-tb-manage'), r.manage);
1865             Y.one('#fp-tb-manage-'+client_id+'-link').set('href', r.manage);
1866
1867             // help url
1868             enable_tb_control(toolbar.one('.fp-tb-help'), r.help);
1869             Y.one('#fp-tb-help-'+client_id+'-link').set('href', r.help);
1870
1871             // message
1872             enable_tb_control(toolbar.one('.fp-tb-message'), r.message);
1873             toolbar.one('.fp-tb-message').setContent(r.message);
1874         },
1875         print_path: function() {
1876             if (!this.pathbar) {
1877                 return;
1878             }
1879             this.pathbar.setContent('').addClass('empty');
1880             var p = this.filepath;
1881             if (p && p.length!=0 && this.viewmode != 2) {
1882                 for(var i = 0; i < p.length; i++) {
1883                     var el = this.pathnode.cloneNode(true);
1884                     this.pathbar.appendChild(el);
1885                     if (i == 0) {
1886                         el.addClass('first');
1887                     }
1888                     if (i == p.length-1) {
1889                         el.addClass('last');
1890                     }
1891                     if (i%2) {
1892                         el.addClass('even');
1893                     } else {
1894                         el.addClass('odd');
1895                     }
1896                     el.all('.fp-path-folder-name').setContent(Y.Escape.html(p[i].name));
1897                     el.on('click',
1898                             function(e, path) {
1899                                 e.preventDefault();
1900                                 this.list({'path':path});
1901                             },
1902                         this, p[i].path);
1903                 }
1904                 this.pathbar.removeClass('empty');
1905             }
1906         },
1907         hide: function() {
1908             this.selectui.hide();
1909             if (this.process_dlg) {
1910                 this.process_dlg.hide();
1911             }
1912             if (this.msg_dlg) {
1913                 this.msg_dlg.hide();
1914             }
1915             this.mainui.hide();
1916         },
1917         show: function() {
1918             if (this.fpnode) {
1919                 this.hide();
1920                 this.mainui.show();
1921                 this.show_recent_repository();
1922             } else {
1923                 this.launch();
1924             }
1925         },
1926         launch: function() {
1927             this.render();
1928         },
1929         show_recent_repository: function() {
1930             this.hide_header();
1931             this.viewbar_set_enabled(false);
1932             var repository_id = this.get_preference('recentrepository');
1933             this.viewmode = this.get_preference('recentviewmode');
1934             if (this.viewmode != 2 && this.viewmode != 3) {
1935                 this.viewmode = 1;
1936             }
1937             if (this.options.repositories[repository_id]) {
1938                 this.list({'repo_id':repository_id});
1939             }
1940         },
1941         get_preference: function (name) {
1942             if (this.options.userprefs[name]) {
1943                 return this.options.userprefs[name];
1944             } else {
1945                 return false;
1946             }
1947         },
1948         set_preference: function(name, value) {
1949             if (this.options.userprefs[name] != value) {
1950                 M.util.set_user_preference('filepicker_' + name, value);
1951                 this.options.userprefs[name] = value;
1952             }
1953         }
1954     });
1955     var loading = Y.one('#filepicker-loading-'+options.client_id);
1956     if (loading) {
1957         loading.setStyle('display', 'none');
1958     }
1959     M.core_filepicker.instances[options.client_id] = new FilePickerHelper(options);
1960 };