lib/form/filemanager.js

   1 // This file is part of Moodle - http://moodle.org/
   2 //
   3 // Moodle is free software: you can redistribute it and/or modify
   4 // it under the terms of the GNU General Public License as published by
   5 // the Free Software Foundation, either version 3 of the License, or
   6 // (at your option) any later version.
   7 //
   8 // Moodle is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 // GNU General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU General Public License
  14 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  15 /**
  16  *
  17  * File Manager UI
  18  * =====
  19  * this.api, stores the URL to make ajax request
  20  * this.currentpath
  21  * this.filepicker_options
  22  * this.movefile_dialog
  23  * this.mkdir_dialog
  24  * this.rename_dialog
  25  * this.client_id
  26  * this.filecount, how many files in this filemanager
  27  * this.maxfiles
  28  * this.maxbytes
  29  * this.filemanager, contains reference to filemanager Node
  30  * this.selectnode, contains referenct to select-file Node
  31  * this.selectui, YUI Panel to select the file
  32  *
  33  * FileManager options:
  34  * =====
  35  * this.options.currentpath
  36  * this.options.itemid
  37  */
  38
  39
  40 M.form_filemanager = {templates:{}};
  41
  42 M.form_filemanager.set_templates = function(Y, templates) {
  43     M.form_filemanager.templates = templates;
  44 }
  45
  46 /**
  47  * This fucntion is called for each file picker on page.
  48  */
  49 M.form_filemanager.init = function(Y, options) {
  50     var FileManagerHelper = function(options) {
  51         FileManagerHelper.superclass.constructor.apply(this, arguments);
  52     };
  53     FileManagerHelper.NAME = "FileManager";
  54     FileManagerHelper.ATTRS = {
  55         options: {},
  56         lang: {}
  57     };
  58
  59     Y.extend(FileManagerHelper, Y.Base, {
  60         api: M.cfg.wwwroot+'/repository/draftfiles_ajax.php',
  61         menus: {},
  62         initializer: function(options) {
  63             this.options = options;
  64             if (options.mainfile) {
  65                 this.enablemainfile = options.mainfile;
  66             }
  67             this.client_id = options.client_id;
  68             this.currentpath = '/';
  69             this.maxfiles = options.maxfiles;
  70             this.maxbytes = options.maxbytes;
  71             this.emptycallback = null; // Used by drag and drop upload
  72
  73             this.filepicker_options = options.filepicker?options.filepicker:{};
  74             this.filepicker_options.client_id = this.client_id;
  75             this.filepicker_options.context = options.context;
  76             this.filepicker_options.maxfiles = this.maxfiles;
  77             this.filepicker_options.maxbytes = this.maxbytes;
  78             this.filepicker_options.env = 'filemanager';
  79             this.filepicker_options.itemid = options.itemid;
  80
  81             if (options.filecount) {
  82                 this.filecount = options.filecount;
  83             } else {
  84                 this.filecount = 0;
  85             }
  86             // prepare filemanager for drag-and-drop upload
  87             this.filemanager = Y.one('#filemanager-'+options.client_id);
  88             if (this.filemanager.hasClass('filemanager-container') || !this.filemanager.one('.filemanager-container')) {
  89                 this.dndcontainer = this.filemanager;
  90             } else  {
  91                 this.dndcontainer = this.filemanager.one('.filemanager-container');
  92                 if (!this.dndcontainer.get('id')) {
  93                     this.dndcontainer.generateID();
  94                 }
  95             }
  96             // save template for one path element and location of path bar
  97             if (this.filemanager.one('.fp-path-folder')) {
  98                 this.pathnode = this.filemanager.one('.fp-path-folder');
  99                 this.pathbar = this.pathnode.get('parentNode');
 100                 this.pathbar.removeChild(this.pathnode);
 101             }
 102             // initialize 'select file' panel
 103             this.selectnode = Y.Node.create(M.form_filemanager.templates.fileselectlayout);
 104             this.selectnode.generateID();
 105             Y.one(document.body).appendChild(this.selectnode);
 106             this.selectui = new Y.Panel({
 107                 srcNode      : this.selectnode,
 108                 zIndex       : 600000,
 109                 centered     : true,
 110                 modal        : true,
 111                 close        : true,
 112                 render       : true
 113             });
 114             this.selectui.plug(Y.Plugin.Drag,{handles:['#'+this.selectnode.get('id')+' .yui3-widget-hd']});
 115             this.selectui.hide();
 116             this.setup_select_file();
 117             // setup buttons onclick events
 118             this.setup_buttons();
 119             // set event handler for lazy loading of thumbnails
 120             this.filemanager.one('.fp-content').on(['scroll','resize'], this.content_scrolled, this);
 121             // display files
 122             this.viewmode = 1; // TODO take from cookies?
 123             this.filemanager.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').removeClass('checked')
 124             this.filemanager.all('.fp-vb-icons').addClass('checked')
 125             this.refresh(this.currentpath); // MDL-31113 get latest list from server
 126         },
 127
 128         wait: function() {
 129            this.filemanager.addClass('fm-updating');
 130         },
 131         request: function(args, redraw) {
 132             var api = this.api + '?action='+args.action;
 133             var params = {};
 134             var scope = this;
 135             if (args['scope']) {
 136                 scope = args['scope'];
 137             }
 138             params['sesskey'] = M.cfg.sesskey;
 139             params['client_id'] = this.client_id;
 140             params['filepath'] = this.currentpath;
 141             params['itemid'] = this.options.itemid?this.options.itemid:0;
 142             if (args['params']) {
 143                 for (i in args['params']) {
 144                     params[i] = args['params'][i];
 145                 }
 146             }
 147             var cfg = {
 148                 method: 'POST',
 149                 on: {
 150                     complete: function(id,o,p) {
 151                         if (!o) {
 152                             alert('IO FATAL');
 153                             return;
 154                         }
 155                         var data = null;
 156                         try {
 157                             data = Y.JSON.parse(o.responseText);
 158                         } catch(e) {
 159                             // TODO display error
 160                             scope.print_msg(M.str.repository.invalidjson, 'error');
 161                             //scope.display_error(M.str.repository.invalidjson+'<pre>'+stripHTML(o.responseText)+'</pre>', 'invalidjson')
 162                             return;
 163                         }
 164                         if (data && data.tree && scope.set_current_tree) {
 165                             scope.set_current_tree(data.tree);
 166                         }
 167                         args.callback(id,data,p);
 168                     }
 169                 },
 170                 arguments: {
 171                     scope: scope
 172                 },
 173                 headers: {
 174                     'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
 175                     'User-Agent': 'MoodleFileManager/3.0'
 176                 },
 177                 data: build_querystring(params)
 178             };
 179             if (args.form) {
 180                 cfg.form = args.form;
 181             }
 182             Y.io(api, cfg);
 183             if (redraw) {
 184                 this.wait();
 185             }
 186         },
 187         filepicker_callback: function(obj) {
 188             this.filecount++;
 189             this.check_buttons();
 190             this.refresh(this.currentpath);
 191             if (typeof M.core_formchangechecker != 'undefined') {
 192                 M.core_formchangechecker.set_form_changed();
 193             }
 194         },
 195         check_buttons: function() {
 196             if (this.filecount>0) {
 197                 this.filemanager.removeClass('fm-nofiles');
 198             } else {
 199                 this.filemanager.addClass('fm-nofiles');
 200             }
 201             if (this.filecount >= this.maxfiles && this.maxfiles!=-1) {
 202                 this.filemanager.addClass('fm-maxfiles');
 203             }
 204             else {
 205                 this.filemanager.removeClass('fm-maxfiles');
 206             }
 207         },
 208         refresh: function(filepath) {
 209             var scope = this;
 210             this.currentpath = filepath;
 211             if (!filepath) {
 212                 filepath = this.currentpath;
 213             } else {
 214                 this.currentpath = filepath;
 215             }
 216             this.request({
 217                 action: 'list',
 218                 scope: scope,
 219                 params: {'filepath':filepath},
 220                 callback: function(id, obj, args) {
 221                     scope.filecount = obj.filecount;
 222                     scope.check_buttons();
 223                     scope.options = obj;
 224                     scope.lazyloading = {};
 225                     scope.render(obj);
 226                 }
 227             }, true);
 228         },
 229         /** displays message in a popup */
 230         print_msg: function(msg, type) {
 231             var header = M.str.moodle.error;
 232             if (type != 'error') {
 233                 type = 'info'; // one of only two types excepted
 234                 header = M.str.moodle.info;
 235             }
 236             if (!this.msg_dlg) {
 237                 var node = Y.Node.create(M.form_filemanager.templates.message);
 238                 this.filemanager.appendChild(node);
 239
 240                 this.msg_dlg = new Y.Panel({
 241                     srcNode      : node,
 242                     zIndex       : 800000,
 243                     centered     : true,
 244                     modal        : true,
 245                     visible      : false,
 246                     render       : true
 247                 });
 248                 this.msg_dlg.plug(Y.Plugin.Drag,{handles:['.yui3-widget-hd']});
 249                 node.one('.fp-msg-butok').on('click', function(e) {
 250                     e.preventDefault();
 251                     this.msg_dlg.hide();
 252                 }, this);
 253             }
 254
 255             this.msg_dlg.set('headerContent', header);
 256             this.filemanager.one('.fp-msg').removeClass('fp-msg-info').removeClass('fp-msg-error').addClass('fp-msg-'+type)
 257             this.filemanager.one('.fp-msg .fp-msg-text').setContent(msg);
 258             this.msg_dlg.show();
 259         },
 260         setup_buttons: function() {
 261             var button_download = this.filemanager.one('.fp-btn-download');
 262             var button_create   = this.filemanager.one('.fp-btn-mkdir');
 263             var button_addfile  = this.filemanager.one('.fp-btn-add');
 264
 265             // setup 'add file' button
 266             // if maxfiles == -1, the no limit
 267             button_addfile.on('click', function(e) {
 268                 e.preventDefault();
 269                 var options = this.filepicker_options;
 270                 options.formcallback = this.filepicker_callback;
 271                 // XXX: magic here, to let filepicker use filemanager scope
 272                 options.magicscope = this;
 273                 options.savepath = this.currentpath;
 274                 M.core_filepicker.show(Y, options);
 275             }, this);
 276
 277             // setup 'make a folder' button
 278             if (this.options.subdirs) {
 279                 button_create.on('click',function(e) {
 280                     e.preventDefault();
 281                     var scope = this;
 282                     // a function used to perform an ajax request
 283                     var perform_action = function(e) {
 284                         e.preventDefault();
 285                         var foldername = Y.one('#fm-newname-'+scope.client_id).get('value');
 286                         if (!foldername) {
 287                             scope.mkdir_dialog.hide();
 288                             return;
 289                         }
 290                         scope.request({
 291                             action:'mkdir',
 292                             params: {filepath:scope.currentpath, newdirname:foldername},
 293                             callback: function(id, obj, args) {
 294                                 var filepath = obj.filepath;
 295                                 scope.mkdir_dialog.hide();
 296                                 scope.refresh(filepath);
 297                                 Y.one('#fm-newname-'+scope.client_id).set('value', '');
 298                                 if (typeof M.core_formchangechecker != 'undefined') {
 299                                     M.core_formchangechecker.set_form_changed();
 300                                 }
 301                             }
 302                         });
 303                     }
 304                     if (!this.mkdir_dialog) {
 305                         var node = Y.Node.create(M.form_filemanager.templates.mkdir);
 306                         this.filemanager.appendChild(node);
 307                         this.mkdir_dialog = new Y.Panel({
 308                             srcNode      : node,
 309                             zIndex       : 800000,
 310                             centered     : true,
 311                             modal        : true,
 312                             visible      : false,
 313                             render       : true
 314                         });
 315                         this.mkdir_dialog.plug(Y.Plugin.Drag,{handles:['.yui3-widget-hd']});
 316                         node.one('.fp-dlg-butcreate').on('click', perform_action, this);
 317                         node.one('input').set('id', 'fm-newname-'+this.client_id).
 318                             on('keydown', function(e){
 319                                 if (e.keyCode == 13) {Y.bind(perform_action, this)(e);}
 320                             }, this);
 321                         node.all('.fp-dlg-butcancel').on('click', function(e){e.preventDefault();this.mkdir_dialog.hide();}, this);
 322                         node.all('.fp-dlg-curpath').set('id', 'fm-curpath-'+this.client_id);
 323                     }
 324                     this.mkdir_dialog.show();
 325                     Y.one('#fm-newname-'+scope.client_id).focus();
 326                     Y.all('#fm-curpath-'+scope.client_id).setContent(this.currentpath)
 327                 }, this);
 328             } else {
 329                 this.filemanager.addClass('fm-nomkdir');
 330             }
 331
 332             // setup 'download this folder' button
 333             // NOTE: popup window must be enabled to perform download process
 334             button_download.on('click',function(e) {
 335                 e.preventDefault();
 336                 var scope = this;
 337                 // perform downloaddir ajax request
 338                 this.request({
 339                     action: 'downloaddir',
 340                     scope: scope,
 341                     callback: function(id, obj, args) {
 342                         if (obj) {
 343                             scope.refresh(obj.filepath);
 344                             var win = window.open(obj.fileurl, 'fm-download-folder');
 345                             if (!win) {
 346                                 scope.print_msg(M.str.repository.popupblockeddownload, 'error');
 347                             }
 348                         } else {
 349                             scope.print_msg(M.str.repository.draftareanofiles, 'error');
 350                         }
 351                     }
 352                 });
 353             }, this);
 354
 355             this.filemanager.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').
 356                 on('click', function(e) {
 357                     e.preventDefault();
 358                     var viewbar = this.filemanager.one('.fp-viewbar')
 359                     if (!viewbar || !viewbar.hasClass('disabled')) {
 360                         this.filemanager.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').removeClass('checked')
 361                         if (e.currentTarget.hasClass('fp-vb-tree')) {
 362                             this.viewmode = 2;
 363                         } else if (e.currentTarget.hasClass('fp-vb-details')) {
 364                             this.viewmode = 3;
 365                         } else {
 366                             this.viewmode = 1;
 367                         }
 368                         e.currentTarget.addClass('checked')
 369                         this.render();
 370                         //Y.Cookie.set('recentviewmode', this.viewmode);
 371                     }
 372                 }, this);
 373         },
 374         print_path: function() {
 375             var p = this.options.path;
 376             this.pathbar.setContent('').addClass('empty');
 377             if (p && p.length!=0 && this.viewmode != 2) {
 378                 for(var i = 0; i < p.length; i++) {
 379                     var el = this.pathnode.cloneNode(true);
 380                     this.pathbar.appendChild(el);
 381
 382                     if (i == 0) {
 383                         el.addClass('first');
 384                     }
 385                     if (i == p.length-1) {
 386                         el.addClass('last');
 387                     }
 388
 389                     if (i%2) {
 390                         el.addClass('even');
 391                     } else {
 392                         el.addClass('odd');
 393                     }
 394                     el.one('.fp-path-folder-name').setContent(p[i].name).
 395                         on('click', function(e, path) {
 396                             e.preventDefault();
 397                             this.refresh(path);
 398                         }, this, p[i].path);
 399                 }
 400                 this.pathbar.removeClass('empty');
 401             }
 402         },
 403         get_filepath: function(obj) {
 404             if (obj.path && obj.path.length) {
 405                 return obj.path[obj.path.length-1].path;
 406             }
 407             return '';
 408         },
 409         treeview_dynload: function(node, cb) {
 410             var retrieved_children = {};
 411             if (node.children) {
 412                 for (var i in node.children) {
 413                     retrieved_children[node.children[i].path] = node.children[i];
 414                 }
 415             }
 416             if (!node.path || node.path == '/') {
 417                 // this is a root pseudo folder
 418                 node.fileinfo.filepath = '/';
 419                 node.fileinfo.type = 'folder';
 420                 node.fileinfo.fullname = node.fileinfo.title;
 421                 node.fileinfo.filename = '.';
 422             }
 423             this.request({
 424                 action:'list',
 425                 params: {filepath:node.path?node.path:''},
 426                 scope:this,
 427                 callback: function(id, obj, args) {
 428                     var list = obj.list;
 429                     var scope = args.scope;
 430                     // check that user did not leave the view mode before recieving this response
 431                     if (!(scope.viewmode == 2 && node && node.getChildrenEl())) {
 432                         return;
 433                     }
 434                     if (cb != null) { // (in manual mode do not update current path)
 435                         scope.options = obj;
 436                         scope.currentpath = node.path?node.path:'/';
 437                     }
 438                     node.highlight(false);
 439                     node.origlist = obj.list ? obj.list : null;
 440                     node.origpath = obj.path ? obj.path : null;
 441                     node.children = [];
 442                     for(k in list) {
 443                         if (list[k].type == 'folder' && retrieved_children[list[k].filepath]) {
 444                             // if this child is a folder and has already been retrieved
 445                             retrieved_children[list[k].filepath].fileinfo = list[k];
 446                             node.children[node.children.length] = retrieved_children[list[k].filepath];
 447                         } else {
 448                             // append new file to the list
 449                             scope.view_files([list[k]]);
 450                         }
 451                     }
 452                     if (cb == null) {
 453                         node.refresh();
 454                     } else {
 455                         // invoke callback requested by TreeView component
 456                         cb();
 457                     }
 458                     scope.content_scrolled();
 459                 }
 460             }, false);
 461         },
 462         content_scrolled: function(e) {
 463             setTimeout(Y.bind(function() {
 464                 if (this.processingimages) {return;}
 465                 this.processingimages = true;
 466                 var scope = this,
 467                     fpcontent = this.filemanager.one('.fp-content'),
 468                     fpcontenty = fpcontent.getY(),
 469                     fpcontentheight = fpcontent.getStylePx('height'),
 470                     is_node_visible = function(node) {
 471                         var offset = node.getY()-fpcontenty;
 472                         if (offset <= fpcontentheight && (offset >=0 || offset+node.getStylePx('height')>=0)) {
 473                             return true;
 474                         }
 475                         return false;
 476                     };
 477                 // replace src for visible images that need to be lazy-loaded
 478                 if (scope.lazyloading) {
 479                     fpcontent.all('img').each( function(node) {
 480                         if (node.get('id') && scope.lazyloading[node.get('id')] && is_node_visible(node)) {
 481                             node.set('src', scope.lazyloading[node.get('id')]);
 482                             delete scope.lazyloading[node.get('id')];
 483                         }
 484                     });
 485                 }
 486                 this.processingimages = false;
 487             }, this), 200)
 488         },
 489         view_files: function(appendfiles) {
 490             this.filemanager.removeClass('fm-updating').removeClass('fm-noitems');
 491             if ((appendfiles == null) && (!this.options.list || this.options.list.length == 0) && this.viewmode != 2) {
 492                 this.filemanager.addClass('fm-noitems');
 493                 return;
 494             }
 495             var list = (appendfiles != null) ? appendfiles : this.options.list;
 496             var element_template;
 497             if (this.viewmode == 2 || this.viewmode == 3) {
 498                 element_template = Y.Node.create(M.form_filemanager.templates.listfilename);
 499             } else {
 500                 this.viewmode = 1;
 501                 element_template = Y.Node.create(M.form_filemanager.templates.iconfilename);
 502             }
 503             var options = {
 504                 viewmode : this.viewmode,
 505                 appendonly : appendfiles != null,
 506                 filenode : element_template,
 507                 callbackcontext : this,
 508                 callback : function(e, node) {
 509                     if (e.preventDefault) { e.preventDefault(); }
 510                     if (node.type == 'folder') {
 511                         this.refresh(node.filepath);
 512                     } else {
 513                         this.select_file(node);
 514                     }
 515                 },
 516                 rightclickcallback : function(e, node) {
 517                     if (e.preventDefault) { e.preventDefault(); }
 518                     this.select_file(node);
 519                 },
 520                 classnamecallback : function(node) {
 521                     var classname = '';
 522                     if (node.type == 'folder' || (!node.type && !node.filename)) {
 523                         classname = classname + ' fp-folder';
 524                     }
 525                     if (node.filename || node.filepath || (node.path && node.path != '/')) {
 526                         classname = classname + ' fp-hascontextmenu';
 527                     }
 528                     if (node.isref) {
 529                         classname = classname + ' fp-isreference';
 530                     }
 531                     if (node.refcount) {
 532                         classname = classname + ' fp-hasreferences';
 533                     }
 534                     if (node.sortorder == 1) { classname = classname + ' fp-mainfile';}
 535                     return Y.Lang.trim(classname);
 536                 }
 537             };
 538             if (this.viewmode == 2) {
 539                 options.dynload = true;
 540                 options.filepath = this.options.path;
 541                 options.treeview_dynload = this.treeview_dynload;
 542                 options.norootrightclick = true;
 543                 options.callback = function(e, node) {
 544                     // TODO MDL-32736 e is not an event here but an object with properties 'event' and 'node'
 545                     if (!node.fullname) {return;}
 546                     if (node.type != 'folder') {
 547                         if (e.node.parent && e.node.parent.origpath) {
 548                             // set the current path
 549                             this.options.path = e.node.parent.origpath;
 550                             this.options.list = e.node.parent.origlist;
 551                             this.print_path();
 552                         }
 553                         this.currentpath = node.filepath;
 554                         this.select_file(node);
 555                     } else {
 556                         // save current path and filelist (in case we want to jump to other viewmode)
 557                         this.options.path = e.node.origpath;
 558                         this.options.list = e.node.origlist;
 559                         this.currentpath = node.filepath;
 560                         this.print_path();
 561                         //this.content_scrolled();
 562                     }
 563                 };
 564             }
 565             if (!this.lazyloading) {
 566                 this.lazyloading={};
 567             }
 568             this.filemanager.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
 569             this.content_scrolled();
 570         },
 571         populate_licenses_select: function(node) {
 572             if (!node) {
 573                 return;
 574             }
 575             node.setContent('');
 576             var licenses = this.options.licenses;
 577             for (var i in licenses) {
 578                 var option = Y.Node.create('<option/>').
 579                     set('value', licenses[i].shortname).
 580                     setContent(licenses[i].fullname);
 581                 node.appendChild(option)
 582             }
 583         },
 584         set_current_tree: function(tree) {
 585             var appendfilepaths = function(list, node) {
 586                 if (!node || !node.children || !node.children.length) {return;}
 587                 for (var i in node.children) {
 588                     list[list.length] = node.children[i].filepath;
 589                     appendfilepaths(list, node.children[i]);
 590                 }
 591             }
 592             var list = ['/'];
 593             appendfilepaths(list, tree);
 594             var selectnode = this.selectnode;
 595             node = selectnode.one('.fp-path select');
 596             node.setContent('');
 597             for (var i in list) {
 598                 node.appendChild(Y.Node.create('<option/>').
 599                     set('value', list[i]).setContent(list[i]))
 600             }
 601         },
 602         update_file: function(confirmed) {
 603             var selectnode = this.selectnode;
 604             var fileinfo = this.selectui.fileinfo;
 605
 606             var newfilename = Y.Lang.trim(selectnode.one('.fp-saveas input').get('value'));
 607             var filenamechanged = (newfilename && newfilename != fileinfo.fullname);
 608             var pathselect = selectnode.one('.fp-path select'),
 609                     pathindex = pathselect.get('selectedIndex'),
 610                     targetpath = pathselect.get("options").item(pathindex).get('value');
 611             var filepathchanged = (targetpath != this.get_parent_folder_name(fileinfo));
 612             var newauthor = Y.Lang.trim(selectnode.one('.fp-author input').get('value'));
 613             var authorchanged = (newauthor != Y.Lang.trim(fileinfo.author));
 614             var licenseselect = selectnode.one('.fp-license select'),
 615                     licenseindex = licenseselect.get('selectedIndex'),
 616                     newlicense = licenseselect.get("options").item(licenseindex).get('value');
 617             var licensechanged = (newlicense != fileinfo.license);
 618
 619             var params, action;
 620             var dialog_options = {callback:this.update_file, callbackargs:[true], scope:this};
 621             if (fileinfo.type == 'folder') {
 622                 if (!newfilename) {
 623                     this.print_msg(M.str.repository.entername, 'error');
 624                     return;
 625                 }
 626                 if (filenamechanged || filepathchanged) {
 627                     if (!confirmed) {
 628                         dialog_options.message = M.str.repository.confirmrenamefolder;
 629                         this.show_confirm_dialog(dialog_options);
 630                         return;
 631                     }
 632                     params = {filepath:fileinfo.filepath, newdirname:newfilename, newfilepath:targetpath};
 633                     action = 'updatedir';
 634                 }
 635             } else {
 636                 if (!newfilename) {
 637                     this.print_msg(M.str.repository.enternewname, 'error');
 638                     return;
 639                 }
 640                 if ((filenamechanged || filepathchanged) && !confirmed && fileinfo.refcount) {
 641                     dialog_options.message = M.util.get_string('confirmrenamefile', 'repository', fileinfo.refcount);
 642                     this.show_confirm_dialog(dialog_options);
 643                     return;
 644                 }
 645                 if (filenamechanged || filepathchanged || licensechanged || authorchanged) {
 646                     params = {filepath:fileinfo.filepath, filename:fileinfo.fullname,
 647                         newfilename:newfilename, newfilepath:targetpath,
 648                         newlicense:newlicense, newauthor:newauthor};
 649                     action = 'updatefile';
 650                 }
 651             }
 652             if (!action) {
 653                 // no changes
 654                 this.selectui.hide();
 655                 return;
 656             }
 657             selectnode.addClass('loading');
 658             this.request({
 659                 action: action,
 660                 scope: this,
 661                 params: params,
 662                 callback: function(id, obj, args) {
 663                     if (obj.error) {
 664                         selectnode.removeClass('loading');
 665                         args.scope.print_msg(obj.error, 'error');
 666                     } else {
 667                         args.scope.selectui.hide();
 668                         args.scope.refresh((obj && obj.filepath) ? obj.filepath : '/');
 669                         if (typeof M.core_formchangechecker != 'undefined') {
 670                             M.core_formchangechecker.set_form_changed();
 671                         }
 672                     }
 673                 }
 674             });
 675         },
 676         /**
 677          * Displays a confirmation dialog
 678          * Expected attributes in dialog_options: message, callback, callbackargs(optional), scope(optional)
 679          */
 680         show_confirm_dialog: function(dialog_options) {
 681             // instead of M.util.show_confirm_dialog(e, dialog_options);
 682             if (!this.confirm_dlg) {
 683                 this.confirm_dlg_node = Y.Node.create(M.form_filemanager.templates.confirmdialog);
 684                 var node = this.confirm_dlg_node;
 685                 node.generateID();
 686                 Y.one(document.body).appendChild(node);
 687                 this.confirm_dlg = new Y.Panel({
 688                     srcNode      : node,
 689                     zIndex       : 800000,
 690                     centered     : true,
 691                     modal        : true,
 692                     visible      : false,
 693                     render       : true,
 694                     buttons      : {}
 695                 });
 696                 this.confirm_dlg.plug(Y.Plugin.Drag,{handles:['#'+node.get('id')+' .yui3-widget-hd']});
 697                 var handle_confirm = function(ev) {
 698                     var dlgopt = this.confirm_dlg.dlgopt;
 699                     ev.preventDefault();
 700                     this.confirm_dlg.hide();
 701                     if (dlgopt.callback) {
 702                         if (dlgopt.callbackargs) {
 703                             dlgopt.callback.apply(dlgopt.scope || this, dlgopt.callbackargs);
 704                         } else {
 705                             dlgopt.callback.apply(dlgopt.scope || this);
 706                         }
 707                     }
 708                 }
 709                 var handle_cancel = function(ev) {
 710                     ev.preventDefault();
 711                     this.confirm_dlg.hide();
 712                 }
 713                 node.one('.fp-dlg-butconfirm').on('click', handle_confirm, this);
 714                 node.one('.fp-dlg-butcancel').on('click', handle_cancel, this);
 715             }
 716             this.confirm_dlg.dlgopt = dialog_options;
 717             this.confirm_dlg_node.one('.fp-dlg-text').setContent(dialog_options.message);
 718             this.confirm_dlg.show();
 719         },
 720         setup_select_file: function() {
 721             var selectnode = this.selectnode;
 722             // bind labels with corresponding inputs
 723             selectnode.all('.fp-saveas,.fp-path,.fp-author,.fp-license').each(function (node) {
 724                 node.all('label').set('for', node.one('input,select').generateID());
 725             });
 726             this.populate_licenses_select(selectnode.one('.fp-license select'));
 727             // register event on clicking buttons
 728             selectnode.one('.fp-file-update').on('click', function(e) {
 729                 e.preventDefault();
 730                 this.update_file();
 731             }, this);
 732             selectnode.one('.fp-file-download').on('click', function(e) {
 733                 e.preventDefault();
 734                 if (this.selectui.fileinfo.type != 'folder') {
 735                     window.open(this.selectui.fileinfo.url, 'fm-download-file');
 736                 }
 737             }, this);
 738             selectnode.one('.fp-file-delete').on('click', function(e) {
 739                 e.preventDefault();
 740                 var dialog_options = {};
 741                 var params = {};
 742                 var fileinfo = this.selectui.fileinfo;
 743                 dialog_options.scope = this;
 744                 params.filepath = fileinfo.filepath;
 745                 if (fileinfo.type == 'folder') {
 746                     params.filename = '.';
 747                     dialog_options.message = M.str.repository.confirmdeletefolder;
 748                 } else {
 749                     params.filename = fileinfo.fullname;
 750                     if (fileinfo.refcount) {
 751                         dialog_options.message = M.util.get_string('confirmdeletefilewithhref', 'repository', fileinfo.refcount);
 752                     } else {
 753                         dialog_options.message = M.str.repository.confirmdeletefile;
 754                     }
 755                 }
 756                 dialog_options.callbackargs = [params];
 757                 dialog_options.callback = function(params) {
 758                     //selectnode.addClass('loading');
 759                     this.request({
 760                         action: 'delete',
 761                         scope: this,
 762                         params: params,
 763                         callback: function(id, obj, args) {
 764                             //args.scope.selectui.hide();
 765                             args.scope.filecount--;
 766                             args.scope.refresh(obj.filepath);
 767                             if (typeof M.core_formchangechecker != 'undefined') {
 768                                 M.core_formchangechecker.set_form_changed();
 769                             }
 770                         }
 771                     });
 772                 };
 773                 this.selectui.hide(); // TODO remove this after confirm dialog is replaced with YUI3
 774                 this.show_confirm_dialog(dialog_options);
 775             }, this);
 776             selectnode.one('.fp-file-zip').on('click', function(e) {
 777                 e.preventDefault();
 778                 var params = {};
 779                 var fileinfo = this.selectui.fileinfo;
 780                 if (fileinfo.type != 'folder') {
 781                     // this button should not even be shown
 782                     return;
 783                 }
 784                 params['filepath']   = fileinfo.filepath;
 785                 params['filename']   = '.';
 786                 selectnode.addClass('loading');
 787                 this.request({
 788                     action: 'zip',
 789                     scope: this,
 790                     params: params,
 791                     callback: function(id, obj, args) {
 792                         args.scope.selectui.hide();
 793                         args.scope.refresh(obj.filepath);
 794                     }
 795                 });
 796             }, this);
 797             selectnode.one('.fp-file-unzip').on('click', function(e) {
 798                 e.preventDefault();
 799                 var params = {};
 800                 var fileinfo = this.selectui.fileinfo;
 801                 if (fileinfo.type != 'zip') {
 802                     // this button should not even be shown
 803                     return;
 804                 }
 805                 params['filepath'] = fileinfo.filepath;
 806                 params['filename'] = fileinfo.fullname;
 807                 selectnode.addClass('loading');
 808                 this.request({
 809                     action: 'unzip',
 810                     scope: this,
 811                     params: params,
 812                     callback: function(id, obj, args) {
 813                         args.scope.selectui.hide();
 814                         args.scope.refresh(obj.filepath);
 815                     }
 816                 });
 817             }, this);
 818             selectnode.one('.fp-file-setmain').on('click', function(e) {
 819                 e.preventDefault();
 820                 var params = {};
 821                 var fileinfo = this.selectui.fileinfo;
 822                 if (fileinfo.type == 'folder') {
 823                     // this button should not even be shown for folders
 824                     return;
 825                 }
 826                 params['filepath'] = fileinfo.filepath;
 827                 params['filename'] = fileinfo.fullname;
 828                 selectnode.addClass('loading');
 829                 this.request({
 830                     action: 'setmainfile',
 831                     scope: this,
 832                     params: params,
 833                     callback: function(id, obj, args) {
 834                         args.scope.selectui.hide();
 835                         args.scope.refresh(fileinfo.filepath);
 836                     }
 837                 });
 838             }, this);
 839             selectnode.all('.fp-file-cancel').on('click', function(e) {
 840                 e.preventDefault();
 841                 // TODO if changed asked to confirm, the same with close button
 842                 this.selectui.hide();
 843             }, this);
 844         },
 845         get_parent_folder_name: function(node) {
 846             if (node.type != 'folder' || node.filepath.length < node.fullname.length+1) {
 847                 return node.filepath;
 848             }
 849             var basedir = node.filepath.substr(0, node.filepath.length - node.fullname.length - 1);
 850             var lastdir = node.filepath.substr(node.filepath.length - node.fullname.length - 2);
 851             if (lastdir == '/' + node.fullname + '/') {
 852                 return basedir;
 853             }
 854             return node.filepath;
 855         },
 856         select_file: function(node) {
 857             var selectnode = this.selectnode;
 858             selectnode.removeClass('loading').removeClass('fp-folder').
 859                 removeClass('fp-file').removeClass('fp-zip').removeClass('fp-cansetmain');
 860             if (node.type == 'folder' || node.type == 'zip') {
 861                 selectnode.addClass('fp-'+node.type);
 862             } else {
 863                 selectnode.addClass('fp-file');
 864             }
 865             if (this.enablemainfile && (node.sortorder != 1) && node.type == 'file') {
 866                 selectnode.addClass('fp-cansetmain');
 867             }
 868             this.selectui.fileinfo = node;
 869             selectnode.one('.fp-saveas input').set('value', node.fullname);
 870             var foldername = this.get_parent_folder_name(node);
 871             selectnode.all('.fp-author input').set('value', node.author);
 872             selectnode.all('.fp-license select option[selected]').set('selected', false);
 873             selectnode.all('.fp-license select option[value='+node.license+']').set('selected', true);
 874             selectnode.all('.fp-path select option[selected]').set('selected', false);
 875             selectnode.all('.fp-path select option').each(function(el){
 876                 if (el.get('value') == foldername) {
 877                     el.set('selected', true);
 878                 }
 879             });
 880             selectnode.all('.fp-author input, .fp-license select').set('disabled',(node.type == 'folder')?'disabled':'');
 881             // display static information about a file (when known)
 882             var attrs = ['datemodified','datecreated','size','dimensions','original','reflist'];
 883             for (var i in attrs) {
 884                 if (selectnode.one('.fp-'+attrs[i])) {
 885                     var value = (node[attrs[i]+'_f']) ? node[attrs[i]+'_f'] : (node[attrs[i]] ? node[attrs[i]] : '');
 886                     selectnode.one('.fp-'+attrs[i]).addClassIf('fp-unknown', ''+value == '')
 887                         .one('.fp-value').setContent(value);
 888                 }
 889             }
 890             // display thumbnail
 891             var imgnode = Y.Node.create('<img/>').
 892                 set('src', node.realthumbnail ? node.realthumbnail : node.thumbnail).
 893                 setStyle('maxHeight', ''+(node.thumbnail_height ? node.thumbnail_height : 90)+'px').
 894                 setStyle('maxWidth', ''+(node.thumbnail_width ? node.thumbnail_width : 90)+'px');
 895             selectnode.one('.fp-thumbnail').setContent('').appendChild(imgnode);
 896             // load original location if applicable
 897             if (node.isref && !node.original) {
 898                 selectnode.one('.fp-original').removeClass('fp-unknown').addClass('fp-loading');
 899                 this.request({
 900                     action: 'getoriginal',
 901                     scope: this,
 902                     params: {'filepath':node.filepath,'filename':node.fullname},
 903                     callback: function(id, obj, args) {
 904                         // check if we did not select another file meanwhile
 905                         var scope = args.scope;
 906                         if (scope.selectui.fileinfo && node &&
 907                                 scope.selectui.fileinfo.filepath == node.filepath &&
 908                                 scope.selectui.fileinfo.fullname == node.fullname) {
 909                             selectnode.one('.fp-original').removeClass('fp-loading');
 910                             if (obj.original) {
 911                                 node.original = obj.original;
 912                                 selectnode.one('.fp-original .fp-value').setContent(node.original);
 913                             } else {
 914                                 selectnode.one('.fp-original .fp-value').setContent(M.str.repository.unknownsource);
 915                             }
 916                         }
 917                     }
 918                 }, false);
 919             }
 920             // load references list if applicable
 921             selectnode.one('.fp-refcount').setContent(node.refcount ? M.util.get_string('referencesexist', 'repository', node.refcount) : '');
 922             if (node.refcount && !node.reflist) {
 923                 selectnode.one('.fp-reflist').removeClass('fp-unknown').addClass('fp-loading');
 924                 this.request({
 925                     action: 'getreferences',
 926                     scope: this,
 927                     params: {'filepath':node.filepath,'filename':node.fullname},
 928                     callback: function(id, obj, args) {
 929                         // check if we did not select another file meanwhile
 930                         var scope = args.scope;
 931                         if (scope.selectui.fileinfo && node &&
 932                                 scope.selectui.fileinfo.filepath == node.filepath &&
 933                                 scope.selectui.fileinfo.fullname == node.fullname) {
 934                             selectnode.one('.fp-reflist').removeClass('fp-loading');
 935                             if (obj.references) {
 936                                 node.reflist = '';
 937                                 for (var i in obj.references) {
 938                                     node.reflist += '<li>'+obj.references[i]+'</li>';
 939                                 }
 940                                 selectnode.one('.fp-reflist .fp-value').setContent(node.reflist);
 941                             } else {
 942                                 selectnode.one('.fp-reflist .fp-value').setContent('');
 943                             }
 944                         }
 945                     }
 946                 }, false);
 947             }
 948             // show panel
 949             this.selectui.show();
 950         },
 951         render: function() {
 952             this.print_path();
 953             this.view_files();
 954         }
 955     });
 956
 957     // finally init everything needed
 958     // hide loading picture, display filemanager interface
 959     var filemanager = Y.one('#filemanager-'+options.client_id);
 960     filemanager.removeClass('fm-loading').addClass('fm-loaded');
 961
 962     var manager = new FileManagerHelper(options);
 963     var dndoptions = {
 964         filemanager: manager,
 965         acceptedtypes: options.accepted_types,
 966         clientid: options.client_id,
 967         maxfiles: options.maxfiles,
 968         maxbytes: options.maxbytes,
 969         itemid: options.itemid,
 970         repositories: manager.filepicker_options.repositories,
 971         containerid: manager.dndcontainer.get('id')
 972     };
 973     M.form_dndupload.init(Y, dndoptions);
 974 };