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.createWithFilesSkin(M.form_filemanager.templates.fileselectlayout);
 104             this.selectnode.generateID();
 105             this.selectui = new Y.Panel({
 106                 srcNode      : this.selectnode,
 107                 zIndex       : 600000,
 108                 centered     : true,
 109                 modal        : true,
 110                 close        : true,
 111                 render       : true
 112             });
 113             this.selectui.plug(Y.Plugin.Drag,{handles:['#'+this.selectnode.get('id')+' .yui3-widget-hd']});
 114             this.selectui.hide();
 115             this.setup_select_file();
 116             // setup buttons onclick events
 117             this.setup_buttons();
 118             // set event handler for lazy loading of thumbnails
 119             this.filemanager.one('.fp-content').on(['scroll','resize'], this.content_scrolled, this);
 120             // display files
 121             this.viewmode = 1; // TODO take from cookies?
 122             this.filemanager.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').removeClass('checked')
 123             this.filemanager.all('.fp-vb-icons').addClass('checked')
 124             this.refresh(this.currentpath); // MDL-31113 get latest list from server
 125         },
 126
 127         wait: function() {
 128            this.filemanager.addClass('fm-updating');
 129         },
 130         request: function(args, redraw) {
 131             var api = this.api + '?action='+args.action;
 132             var params = {};
 133             var scope = this;
 134             if (args['scope']) {
 135                 scope = args['scope'];
 136             }
 137             params['sesskey'] = M.cfg.sesskey;
 138             params['client_id'] = this.client_id;
 139             params['filepath'] = this.currentpath;
 140             params['itemid'] = this.options.itemid?this.options.itemid:0;
 141             if (args['params']) {
 142                 for (i in args['params']) {
 143                     params[i] = args['params'][i];
 144                 }
 145             }
 146             var cfg = {
 147                 method: 'POST',
 148                 on: {
 149                     complete: function(id,o,p) {
 150                         if (!o) {
 151                             alert('IO FATAL');
 152                             return;
 153                         }
 154                         var data = null;
 155                         try {
 156                             data = Y.JSON.parse(o.responseText);
 157                         } catch(e) {
 158                             scope.print_msg(M.str.repository.invalidjson, 'error');
 159                             Y.error(M.str.repository.invalidjson+":\n"+o.responseText);
 160                             return;
 161                         }
 162                         if (data && data.tree && scope.set_current_tree) {
 163                             scope.set_current_tree(data.tree);
 164                         }
 165                         args.callback(id,data,p);
 166                     }
 167                 },
 168                 arguments: {
 169                     scope: scope
 170                 },
 171                 headers: {
 172                     'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
 173                     'User-Agent': 'MoodleFileManager/3.0'
 174                 },
 175                 data: build_querystring(params)
 176             };
 177             if (args.form) {
 178                 cfg.form = args.form;
 179             }
 180             Y.io(api, cfg);
 181             if (redraw) {
 182                 this.wait();
 183             }
 184         },
 185         filepicker_callback: function(obj) {
 186             this.filecount++;
 187             this.check_buttons();
 188             this.refresh(this.currentpath);
 189             if (typeof M.core_formchangechecker != 'undefined') {
 190                 M.core_formchangechecker.set_form_changed();
 191             }
 192         },
 193         check_buttons: function() {
 194             if (this.filecount>0) {
 195                 this.filemanager.removeClass('fm-nofiles');
 196             } else {
 197                 this.filemanager.addClass('fm-nofiles');
 198             }
 199             if (this.filecount >= this.maxfiles && this.maxfiles!=-1) {
 200                 this.filemanager.addClass('fm-maxfiles');
 201             }
 202             else {
 203                 this.filemanager.removeClass('fm-maxfiles');
 204             }
 205         },
 206         refresh: function(filepath) {
 207             var scope = this;
 208             this.currentpath = filepath;
 209             if (!filepath) {
 210                 filepath = this.currentpath;
 211             } else {
 212                 this.currentpath = filepath;
 213             }
 214             this.request({
 215                 action: 'list',
 216                 scope: scope,
 217                 params: {'filepath':filepath},
 218                 callback: function(id, obj, args) {
 219                     scope.filecount = obj.filecount;
 220                     scope.check_buttons();
 221                     scope.options = obj;
 222                     scope.lazyloading = {};
 223                     scope.render(obj);
 224                 }
 225             }, true);
 226         },
 227         /** displays message in a popup */
 228         print_msg: function(msg, type) {
 229             var header = M.str.moodle.error;
 230             if (type != 'error') {
 231                 type = 'info'; // one of only two types excepted
 232                 header = M.str.moodle.info;
 233             }
 234             if (!this.msg_dlg) {
 235                 this.msg_dlg_node = Y.Node.createWithFilesSkin(M.form_filemanager.templates.message);
 236                 var nodeid = this.msg_dlg_node.generateID();
 237
 238                 this.msg_dlg = new Y.Panel({
 239                     srcNode      : this.msg_dlg_node,
 240                     zIndex       : 800000,
 241                     centered     : true,
 242                     modal        : true,
 243                     visible      : false,
 244                     render       : true
 245                 });
 246                 this.msg_dlg.plug(Y.Plugin.Drag,{handles:['#'+nodeid+' .yui3-widget-hd']});
 247                 this.msg_dlg_node.one('.fp-msg-butok').on('click', function(e) {
 248                     e.preventDefault();
 249                     this.msg_dlg.hide();
 250                 }, this);
 251             }
 252
 253             this.msg_dlg.set('headerContent', header);
 254             this.msg_dlg_node.removeClass('fp-msg-info').removeClass('fp-msg-error').addClass('fp-msg-'+type)
 255             this.msg_dlg_node.one('.fp-msg-text').setContent(msg);
 256             this.msg_dlg.show();
 257         },
 258         setup_buttons: function() {
 259             var button_download = this.filemanager.one('.fp-btn-download');
 260             var button_create   = this.filemanager.one('.fp-btn-mkdir');
 261             var button_addfile  = this.filemanager.one('.fp-btn-add');
 262
 263             // setup 'add file' button
 264             button_addfile.on('click', this.show_filepicker, this);
 265
 266             var dndarrow = this.filemanager.one('.dndupload-arrow');
 267             if (dndarrow) {
 268                 dndarrow.on('click', this.show_filepicker, this);
 269             }
 270
 271             // setup 'make a folder' button
 272             if (this.options.subdirs) {
 273                 button_create.on('click',function(e) {
 274                     e.preventDefault();
 275                     var scope = this;
 276                     // a function used to perform an ajax request
 277                     var perform_action = function(e) {
 278                         e.preventDefault();
 279                         var foldername = Y.one('#fm-newname-'+scope.client_id).get('value');
 280                         if (!foldername) {
 281                             scope.mkdir_dialog.hide();
 282                             return;
 283                         }
 284                         scope.request({
 285                             action:'mkdir',
 286                             params: {filepath:scope.currentpath, newdirname:foldername},
 287                             callback: function(id, obj, args) {
 288                                 var filepath = obj.filepath;
 289                                 scope.mkdir_dialog.hide();
 290                                 scope.refresh(filepath);
 291                                 Y.one('#fm-newname-'+scope.client_id).set('value', '');
 292                                 if (typeof M.core_formchangechecker != 'undefined') {
 293                                     M.core_formchangechecker.set_form_changed();
 294                                 }
 295                             }
 296                         });
 297                     }
 298                     if (!this.mkdir_dialog) {
 299                         var node = Y.Node.createWithFilesSkin(M.form_filemanager.templates.mkdir);
 300                         this.mkdir_dialog = new Y.Panel({
 301                             srcNode      : node,
 302                             zIndex       : 800000,
 303                             centered     : true,
 304                             modal        : true,
 305                             visible      : false,
 306                             render       : true
 307                         });
 308                         this.mkdir_dialog.plug(Y.Plugin.Drag,{handles:['.yui3-widget-hd']});
 309                         node.one('.fp-dlg-butcreate').on('click', perform_action, this);
 310                         node.one('input').set('id', 'fm-newname-'+this.client_id).
 311                             on('keydown', function(e){
 312                                 if (e.keyCode == 13) {Y.bind(perform_action, this)(e);}
 313                             }, this);
 314                         node.all('.fp-dlg-butcancel').on('click', function(e){e.preventDefault();this.mkdir_dialog.hide();}, this);
 315                         node.all('.fp-dlg-curpath').set('id', 'fm-curpath-'+this.client_id);
 316                     }
 317                     this.mkdir_dialog.show();
 318                     Y.one('#fm-newname-'+scope.client_id).focus();
 319                     Y.all('#fm-curpath-'+scope.client_id).setContent(this.currentpath)
 320                 }, this);
 321             } else {
 322                 this.filemanager.addClass('fm-nomkdir');
 323             }
 324
 325             // setup 'download this folder' button
 326             button_download.on('click',function(e) {
 327                 e.preventDefault();
 328                 var scope = this;
 329                 // perform downloaddir ajax request
 330                 this.request({
 331                     action: 'downloaddir',
 332                     scope: scope,
 333                     callback: function(id, obj, args) {
 334                         if (obj) {
 335                             scope.refresh(obj.filepath);
 336                             node = Y.Node.create('<iframe></iframe>').setStyles({
 337                                 visibility : 'hidden',
 338                                 width : '1px',
 339                                 height : '1px'
 340                             });
 341                             node.set('src', obj.fileurl);
 342                             Y.one('body').appendChild(node);
 343                         } else {
 344                             scope.print_msg(M.str.repository.draftareanofiles, 'error');
 345                         }
 346                     }
 347                 });
 348             }, this);
 349
 350             this.filemanager.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').
 351                 on('click', function(e) {
 352                     e.preventDefault();
 353                     var viewbar = this.filemanager.one('.fp-viewbar')
 354                     if (!viewbar || !viewbar.hasClass('disabled')) {
 355                         this.filemanager.all('.fp-vb-icons,.fp-vb-tree,.fp-vb-details').removeClass('checked')
 356                         if (e.currentTarget.hasClass('fp-vb-tree')) {
 357                             this.viewmode = 2;
 358                         } else if (e.currentTarget.hasClass('fp-vb-details')) {
 359                             this.viewmode = 3;
 360                         } else {
 361                             this.viewmode = 1;
 362                         }
 363                         e.currentTarget.addClass('checked')
 364                         this.render();
 365                     }
 366                 }, this);
 367         },
 368
 369         show_filepicker: function (e) {
 370             // if maxfiles == -1, the no limit
 371             e.preventDefault();
 372             var options = this.filepicker_options;
 373             options.formcallback = this.filepicker_callback;
 374             // XXX: magic here, to let filepicker use filemanager scope
 375             options.magicscope = this;
 376             options.savepath = this.currentpath;
 377             M.core_filepicker.show(Y, options);
 378         },
 379
 380         print_path: function() {
 381             var p = this.options.path;
 382             this.pathbar.setContent('').addClass('empty');
 383             if (p && p.length!=0 && this.viewmode != 2) {
 384                 for(var i = 0; i < p.length; i++) {
 385                     var el = this.pathnode.cloneNode(true);
 386                     this.pathbar.appendChild(el);
 387
 388                     if (i == 0) {
 389                         el.addClass('first');
 390                     }
 391                     if (i == p.length-1) {
 392                         el.addClass('last');
 393                     }
 394
 395                     if (i%2) {
 396                         el.addClass('even');
 397                     } else {
 398                         el.addClass('odd');
 399                     }
 400                     el.one('.fp-path-folder-name').setContent(p[i].name).
 401                         on('click', function(e, path) {
 402                             e.preventDefault();
 403                             this.refresh(path);
 404                         }, this, p[i].path);
 405                 }
 406                 this.pathbar.removeClass('empty');
 407             }
 408         },
 409         get_filepath: function(obj) {
 410             if (obj.path && obj.path.length) {
 411                 return obj.path[obj.path.length-1].path;
 412             }
 413             return '';
 414         },
 415         treeview_dynload: function(node, cb) {
 416             var retrieved_children = {};
 417             if (node.children) {
 418                 for (var i in node.children) {
 419                     retrieved_children[node.children[i].path] = node.children[i];
 420                 }
 421             }
 422             if (!node.path || node.path == '/') {
 423                 // this is a root pseudo folder
 424                 node.fileinfo.filepath = '/';
 425                 node.fileinfo.type = 'folder';
 426                 node.fileinfo.fullname = node.fileinfo.title;
 427                 node.fileinfo.filename = '.';
 428             }
 429             this.request({
 430                 action:'list',
 431                 params: {filepath:node.path?node.path:''},
 432                 scope:this,
 433                 callback: function(id, obj, args) {
 434                     var list = obj.list;
 435                     var scope = args.scope;
 436                     // check that user did not leave the view mode before recieving this response
 437                     if (!(scope.viewmode == 2 && node && node.getChildrenEl())) {
 438                         return;
 439                     }
 440                     if (cb != null) { // (in manual mode do not update current path)
 441                         scope.options = obj;
 442                         scope.currentpath = node.path?node.path:'/';
 443                     }
 444                     node.highlight(false);
 445                     node.origlist = obj.list ? obj.list : null;
 446                     node.origpath = obj.path ? obj.path : null;
 447                     node.children = [];
 448                     for(k in list) {
 449                         if (list[k].type == 'folder' && retrieved_children[list[k].filepath]) {
 450                             // if this child is a folder and has already been retrieved
 451                             retrieved_children[list[k].filepath].fileinfo = list[k];
 452                             node.children[node.children.length] = retrieved_children[list[k].filepath];
 453                         } else {
 454                             // append new file to the list
 455                             scope.view_files([list[k]]);
 456                         }
 457                     }
 458                     if (cb == null) {
 459                         node.refresh();
 460                     } else {
 461                         // invoke callback requested by TreeView component
 462                         cb();
 463                     }
 464                     scope.content_scrolled();
 465                 }
 466             }, false);
 467         },
 468         content_scrolled: function(e) {
 469             setTimeout(Y.bind(function() {
 470                 if (this.processingimages) {return;}
 471                 this.processingimages = true;
 472                 var scope = this,
 473                     fpcontent = this.filemanager.one('.fp-content'),
 474                     fpcontenty = fpcontent.getY(),
 475                     fpcontentheight = fpcontent.getStylePx('height'),
 476                     is_node_visible = function(node) {
 477                         var offset = node.getY()-fpcontenty;
 478                         if (offset <= fpcontentheight && (offset >=0 || offset+node.getStylePx('height')>=0)) {
 479                             return true;
 480                         }
 481                         return false;
 482                     };
 483                 // replace src for visible images that need to be lazy-loaded
 484                 if (scope.lazyloading) {
 485                     fpcontent.all('img').each( function(node) {
 486                         if (node.get('id') && scope.lazyloading[node.get('id')] && is_node_visible(node)) {
 487                             node.setImgRealSrc(scope.lazyloading);
 488                         }
 489                     });
 490                 }
 491                 this.processingimages = false;
 492             }, this), 200)
 493         },
 494         view_files: function(appendfiles) {
 495             this.filemanager.removeClass('fm-updating').removeClass('fm-noitems');
 496             if ((appendfiles == null) && (!this.options.list || this.options.list.length == 0) && this.viewmode != 2) {
 497                 this.filemanager.addClass('fm-noitems');
 498                 return;
 499             }
 500             var list = (appendfiles != null) ? appendfiles : this.options.list;
 501             var element_template;
 502             if (this.viewmode == 2 || this.viewmode == 3) {
 503                 element_template = Y.Node.create(M.form_filemanager.templates.listfilename);
 504             } else {
 505                 this.viewmode = 1;
 506                 element_template = Y.Node.create(M.form_filemanager.templates.iconfilename);
 507             }
 508             var options = {
 509                 viewmode : this.viewmode,
 510                 appendonly : appendfiles != null,
 511                 filenode : element_template,
 512                 callbackcontext : this,
 513                 callback : function(e, node) {
 514                     if (e.preventDefault) { e.preventDefault(); }
 515                     if (node.type == 'folder') {
 516                         this.refresh(node.filepath);
 517                     } else {
 518                         this.select_file(node);
 519                     }
 520                 },
 521                 rightclickcallback : function(e, node) {
 522                     if (e.preventDefault) { e.preventDefault(); }
 523                     this.select_file(node);
 524                 },
 525                 classnamecallback : function(node) {
 526                     var classname = '';
 527                     if (node.type == 'folder' || (!node.type && !node.filename)) {
 528                         classname = classname + ' fp-folder';
 529                     }
 530                     if (node.filename || node.filepath || (node.path && node.path != '/')) {
 531                         classname = classname + ' fp-hascontextmenu';
 532                     }
 533                     if (node.isref) {
 534                         classname = classname + ' fp-isreference';
 535                     }
 536                     if (node.refcount) {
 537                         classname = classname + ' fp-hasreferences';
 538                     }
 539                     if (node.originalmissing) {
 540                         classname = classname + ' fp-originalmissing';
 541                     }
 542                     if (node.sortorder == 1) { classname = classname + ' fp-mainfile';}
 543                     return Y.Lang.trim(classname);
 544                 }
 545             };
 546             if (this.viewmode == 2) {
 547                 options.dynload = true;
 548                 options.filepath = this.options.path;
 549                 options.treeview_dynload = this.treeview_dynload;
 550                 options.norootrightclick = true;
 551                 options.callback = function(e, node) {
 552                     // TODO MDL-32736 e is not an event here but an object with properties 'event' and 'node'
 553                     if (!node.fullname) {return;}
 554                     if (node.type != 'folder') {
 555                         if (e.node.parent && e.node.parent.origpath) {
 556                             // set the current path
 557                             this.options.path = e.node.parent.origpath;
 558                             this.options.list = e.node.parent.origlist;
 559                             this.print_path();
 560                         }
 561                         this.currentpath = node.filepath;
 562                         this.select_file(node);
 563                     } else {
 564                         // save current path and filelist (in case we want to jump to other viewmode)
 565                         this.options.path = e.node.origpath;
 566                         this.options.list = e.node.origlist;
 567                         this.currentpath = node.filepath;
 568                         this.print_path();
 569                         //this.content_scrolled();
 570                     }
 571                 };
 572             }
 573             if (!this.lazyloading) {
 574                 this.lazyloading={};
 575             }
 576             this.filemanager.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
 577             this.content_scrolled();
 578         },
 579         populate_licenses_select: function(node) {
 580             if (!node) {
 581                 return;
 582             }
 583             node.setContent('');
 584             var licenses = this.options.licenses;
 585             for (var i in licenses) {
 586                 var option = Y.Node.create('<option/>').
 587                     set('value', licenses[i].shortname).
 588                     setContent(licenses[i].fullname);
 589                 node.appendChild(option)
 590             }
 591         },
 592         set_current_tree: function(tree) {
 593             var appendfilepaths = function(list, node) {
 594                 if (!node || !node.children || !node.children.length) {return;}
 595                 for (var i in node.children) {
 596                     list[list.length] = node.children[i].filepath;
 597                     appendfilepaths(list, node.children[i]);
 598                 }
 599             }
 600             var list = ['/'];
 601             appendfilepaths(list, tree);
 602             var selectnode = this.selectnode;
 603             node = selectnode.one('.fp-path select');
 604             node.setContent('');
 605             for (var i in list) {
 606                 node.appendChild(Y.Node.create('<option/>').
 607                     set('value', list[i]).setContent(list[i]))
 608             }
 609         },
 610         update_file: function(confirmed) {
 611             var selectnode = this.selectnode;
 612             var fileinfo = this.selectui.fileinfo;
 613
 614             var newfilename = Y.Lang.trim(selectnode.one('.fp-saveas input').get('value'));
 615             var filenamechanged = (newfilename && newfilename != fileinfo.fullname);
 616             var pathselect = selectnode.one('.fp-path select'),
 617                     pathindex = pathselect.get('selectedIndex'),
 618                     targetpath = pathselect.get("options").item(pathindex).get('value');
 619             var filepathchanged = (targetpath != this.get_parent_folder_name(fileinfo));
 620             var newauthor = Y.Lang.trim(selectnode.one('.fp-author input').get('value'));
 621             var authorchanged = (newauthor != Y.Lang.trim(fileinfo.author));
 622             var licenseselect = selectnode.one('.fp-license select'),
 623                     licenseindex = licenseselect.get('selectedIndex'),
 624                     newlicense = licenseselect.get("options").item(licenseindex).get('value');
 625             var licensechanged = (newlicense != fileinfo.license);
 626
 627             var params, action;
 628             var dialog_options = {callback:this.update_file, callbackargs:[true], scope:this};
 629             if (fileinfo.type == 'folder') {
 630                 if (!newfilename) {
 631                     this.print_msg(M.str.repository.entername, 'error');
 632                     return;
 633                 }
 634                 if (filenamechanged || filepathchanged) {
 635                     if (!confirmed) {
 636                         dialog_options.message = M.str.repository.confirmrenamefolder;
 637                         this.show_confirm_dialog(dialog_options);
 638                         return;
 639                     }
 640                     params = {filepath:fileinfo.filepath, newdirname:newfilename, newfilepath:targetpath};
 641                     action = 'updatedir';
 642                 }
 643             } else {
 644                 if (!newfilename) {
 645                     this.print_msg(M.str.repository.enternewname, 'error');
 646                     return;
 647                 }
 648                 if ((filenamechanged || filepathchanged) && !confirmed && fileinfo.refcount) {
 649                     dialog_options.message = M.util.get_string('confirmrenamefile', 'repository', fileinfo.refcount);
 650                     this.show_confirm_dialog(dialog_options);
 651                     return;
 652                 }
 653                 if (filenamechanged || filepathchanged || licensechanged || authorchanged) {
 654                     params = {filepath:fileinfo.filepath, filename:fileinfo.fullname,
 655                         newfilename:newfilename, newfilepath:targetpath,
 656                         newlicense:newlicense, newauthor:newauthor};
 657                     action = 'updatefile';
 658                 }
 659             }
 660             if (!action) {
 661                 // no changes
 662                 this.selectui.hide();
 663                 return;
 664             }
 665             selectnode.addClass('loading');
 666             this.request({
 667                 action: action,
 668                 scope: this,
 669                 params: params,
 670                 callback: function(id, obj, args) {
 671                     if (obj.error) {
 672                         selectnode.removeClass('loading');
 673                         args.scope.print_msg(obj.error, 'error');
 674                     } else {
 675                         args.scope.selectui.hide();
 676                         args.scope.refresh((obj && obj.filepath) ? obj.filepath : '/');
 677                         if (typeof M.core_formchangechecker != 'undefined') {
 678                             M.core_formchangechecker.set_form_changed();
 679                         }
 680                     }
 681                 }
 682             });
 683         },
 684         /**
 685          * Displays a confirmation dialog
 686          * Expected attributes in dialog_options: message, callback, callbackargs(optional), scope(optional)
 687          */
 688         show_confirm_dialog: function(dialog_options) {
 689             // instead of M.util.show_confirm_dialog(e, dialog_options);
 690             if (!this.confirm_dlg) {
 691                 this.confirm_dlg_node = Y.Node.createWithFilesSkin(M.form_filemanager.templates.confirmdialog);
 692                 var node = this.confirm_dlg_node;
 693                 node.generateID();
 694                 this.confirm_dlg = new Y.Panel({
 695                     srcNode      : node,
 696                     zIndex       : 800000,
 697                     centered     : true,
 698                     modal        : true,
 699                     visible      : false,
 700                     render       : true,
 701                     buttons      : {}
 702                 });
 703                 this.confirm_dlg.plug(Y.Plugin.Drag,{handles:['#'+node.get('id')+' .yui3-widget-hd']});
 704                 var handle_confirm = function(ev) {
 705                     var dlgopt = this.confirm_dlg.dlgopt;
 706                     ev.preventDefault();
 707                     this.confirm_dlg.hide();
 708                     if (dlgopt.callback) {
 709                         if (dlgopt.callbackargs) {
 710                             dlgopt.callback.apply(dlgopt.scope || this, dlgopt.callbackargs);
 711                         } else {
 712                             dlgopt.callback.apply(dlgopt.scope || this);
 713                         }
 714                     }
 715                 }
 716                 var handle_cancel = function(ev) {
 717                     ev.preventDefault();
 718                     this.confirm_dlg.hide();
 719                 }
 720                 node.one('.fp-dlg-butconfirm').on('click', handle_confirm, this);
 721                 node.one('.fp-dlg-butcancel').on('click', handle_cancel, this);
 722             }
 723             this.confirm_dlg.dlgopt = dialog_options;
 724             this.confirm_dlg_node.one('.fp-dlg-text').setContent(dialog_options.message);
 725             this.confirm_dlg.show();
 726         },
 727         setup_select_file: function() {
 728             var selectnode = this.selectnode;
 729             // bind labels with corresponding inputs
 730             selectnode.all('.fp-saveas,.fp-path,.fp-author,.fp-license').each(function (node) {
 731                 node.all('label').set('for', node.one('input,select').generateID());
 732             });
 733             this.populate_licenses_select(selectnode.one('.fp-license select'));
 734             // register event on clicking buttons
 735             selectnode.one('.fp-file-update').on('click', function(e) {
 736                 e.preventDefault();
 737                 this.update_file();
 738             }, this);
 739             selectnode.one('.fp-file-download').on('click', function(e) {
 740                 e.preventDefault();
 741                 if (this.selectui.fileinfo.type != 'folder') {
 742                     node = Y.Node.create('<iframe></iframe>').setStyles({
 743                         visibility : 'hidden',
 744                         width : '1px',
 745                         height : '1px'
 746                     });
 747                     node.set('src', this.selectui.fileinfo.url);
 748                     Y.one('body').appendChild(node);
 749                 }
 750             }, this);
 751             selectnode.one('.fp-file-delete').on('click', function(e) {
 752                 e.preventDefault();
 753                 var dialog_options = {};
 754                 var params = {};
 755                 var fileinfo = this.selectui.fileinfo;
 756                 dialog_options.scope = this;
 757                 params.filepath = fileinfo.filepath;
 758                 if (fileinfo.type == 'folder') {
 759                     params.filename = '.';
 760                     dialog_options.message = M.str.repository.confirmdeletefolder;
 761                 } else {
 762                     params.filename = fileinfo.fullname;
 763                     if (fileinfo.refcount) {
 764                         dialog_options.message = M.util.get_string('confirmdeletefilewithhref', 'repository', fileinfo.refcount);
 765                     } else {
 766                         dialog_options.message = M.str.repository.confirmdeletefile;
 767                     }
 768                 }
 769                 dialog_options.callbackargs = [params];
 770                 dialog_options.callback = function(params) {
 771                     //selectnode.addClass('loading');
 772                     this.request({
 773                         action: 'delete',
 774                         scope: this,
 775                         params: params,
 776                         callback: function(id, obj, args) {
 777                             //args.scope.selectui.hide();
 778                             args.scope.filecount--;
 779                             args.scope.refresh(obj.filepath);
 780                             if (typeof M.core_formchangechecker != 'undefined') {
 781                                 M.core_formchangechecker.set_form_changed();
 782                             }
 783                         }
 784                     });
 785                 };
 786                 this.selectui.hide(); // TODO remove this after confirm dialog is replaced with YUI3
 787                 this.show_confirm_dialog(dialog_options);
 788             }, this);
 789             selectnode.one('.fp-file-zip').on('click', function(e) {
 790                 e.preventDefault();
 791                 var params = {};
 792                 var fileinfo = this.selectui.fileinfo;
 793                 if (fileinfo.type != 'folder') {
 794                     // this button should not even be shown
 795                     return;
 796                 }
 797                 params['filepath']   = fileinfo.filepath;
 798                 params['filename']   = '.';
 799                 selectnode.addClass('loading');
 800                 this.request({
 801                     action: 'zip',
 802                     scope: this,
 803                     params: params,
 804                     callback: function(id, obj, args) {
 805                         args.scope.selectui.hide();
 806                         args.scope.refresh(obj.filepath);
 807                     }
 808                 });
 809             }, this);
 810             selectnode.one('.fp-file-unzip').on('click', function(e) {
 811                 e.preventDefault();
 812                 var params = {};
 813                 var fileinfo = this.selectui.fileinfo;
 814                 if (fileinfo.type != 'zip') {
 815                     // this button should not even be shown
 816                     return;
 817                 }
 818                 params['filepath'] = fileinfo.filepath;
 819                 params['filename'] = fileinfo.fullname;
 820                 selectnode.addClass('loading');
 821                 this.request({
 822                     action: 'unzip',
 823                     scope: this,
 824                     params: params,
 825                     callback: function(id, obj, args) {
 826                         args.scope.selectui.hide();
 827                         args.scope.refresh(obj.filepath);
 828                     }
 829                 });
 830             }, this);
 831             selectnode.one('.fp-file-setmain').on('click', function(e) {
 832                 e.preventDefault();
 833                 var params = {};
 834                 var fileinfo = this.selectui.fileinfo;
 835                 if (!this.enablemainfile || fileinfo.type == 'folder') {
 836                     // this button should not even be shown for folders or when mainfile is disabled
 837                     return;
 838                 }
 839                 params['filepath'] = fileinfo.filepath;
 840                 params['filename'] = fileinfo.fullname;
 841                 selectnode.addClass('loading');
 842                 this.request({
 843                     action: 'setmainfile',
 844                     scope: this,
 845                     params: params,
 846                     callback: function(id, obj, args) {
 847                         args.scope.selectui.hide();
 848                         args.scope.refresh(fileinfo.filepath);
 849                     }
 850                 });
 851             }, this);
 852             selectnode.all('.fp-file-cancel').on('click', function(e) {
 853                 e.preventDefault();
 854                 // TODO if changed asked to confirm, the same with close button
 855                 this.selectui.hide();
 856             }, this);
 857         },
 858         get_parent_folder_name: function(node) {
 859             if (node.type != 'folder' || node.filepath.length < node.fullname.length+1) {
 860                 return node.filepath;
 861             }
 862             var basedir = node.filepath.substr(0, node.filepath.length - node.fullname.length - 1);
 863             var lastdir = node.filepath.substr(node.filepath.length - node.fullname.length - 2);
 864             if (lastdir == '/' + node.fullname + '/') {
 865                 return basedir;
 866             }
 867             return node.filepath;
 868         },
 869         select_file: function(node) {
 870             var selectnode = this.selectnode;
 871             selectnode.removeClass('loading').removeClass('fp-folder').
 872                 removeClass('fp-file').removeClass('fp-zip').removeClass('fp-cansetmain');
 873             if (node.type == 'folder' || node.type == 'zip') {
 874                 selectnode.addClass('fp-'+node.type);
 875             } else {
 876                 selectnode.addClass('fp-file');
 877             }
 878             if (this.enablemainfile && (node.sortorder != 1) && node.type == 'file') {
 879                 selectnode.addClass('fp-cansetmain');
 880             }
 881             this.selectui.fileinfo = node;
 882             selectnode.one('.fp-saveas input').set('value', node.fullname);
 883             var foldername = this.get_parent_folder_name(node);
 884             selectnode.all('.fp-author input').set('value', node.author ? node.author : '');
 885             selectnode.all('.fp-license select option[selected]').set('selected', false);
 886             selectnode.all('.fp-license select option[value='+node.license+']').set('selected', true);
 887             selectnode.all('.fp-path select option[selected]').set('selected', false);
 888             selectnode.all('.fp-path select option').each(function(el){
 889                 if (el.get('value') == foldername) {
 890                     el.set('selected', true);
 891                 }
 892             });
 893             selectnode.all('.fp-author input, .fp-license select').set('disabled',(node.type == 'folder')?'disabled':'');
 894             // display static information about a file (when known)
 895             var attrs = ['datemodified','datecreated','size','dimensions','original','reflist'];
 896             for (var i in attrs) {
 897                 if (selectnode.one('.fp-'+attrs[i])) {
 898                     var value = (node[attrs[i]+'_f']) ? node[attrs[i]+'_f'] : (node[attrs[i]] ? node[attrs[i]] : '');
 899                     selectnode.one('.fp-'+attrs[i]).addClassIf('fp-unknown', ''+value == '')
 900                         .one('.fp-value').setContent(value);
 901                 }
 902             }
 903             // display thumbnail
 904             var imgnode = Y.Node.create('<img/>').
 905                 set('src', node.realthumbnail ? node.realthumbnail : node.thumbnail).
 906                 setStyle('maxHeight', ''+(node.thumbnail_height ? node.thumbnail_height : 90)+'px').
 907                 setStyle('maxWidth', ''+(node.thumbnail_width ? node.thumbnail_width : 90)+'px');
 908             selectnode.one('.fp-thumbnail').setContent('').appendChild(imgnode);
 909             // load original location if applicable
 910             if (node.isref && !node.original) {
 911                 selectnode.one('.fp-original').removeClass('fp-unknown').addClass('fp-loading');
 912                 this.request({
 913                     action: 'getoriginal',
 914                     scope: this,
 915                     params: {'filepath':node.filepath,'filename':node.fullname},
 916                     callback: function(id, obj, args) {
 917                         // check if we did not select another file meanwhile
 918                         var scope = args.scope;
 919                         if (scope.selectui.fileinfo && node &&
 920                                 scope.selectui.fileinfo.filepath == node.filepath &&
 921                                 scope.selectui.fileinfo.fullname == node.fullname) {
 922                             selectnode.one('.fp-original').removeClass('fp-loading');
 923                             if (obj.original) {
 924                                 node.original = obj.original;
 925                                 selectnode.one('.fp-original .fp-value').setContent(node.original);
 926                             } else {
 927                                 selectnode.one('.fp-original .fp-value').setContent(M.str.repository.unknownsource);
 928                             }
 929                         }
 930                     }
 931                 }, false);
 932             }
 933             // load references list if applicable
 934             selectnode.one('.fp-refcount').setContent(node.refcount ? M.util.get_string('referencesexist', 'repository', node.refcount) : '');
 935             if (node.refcount && !node.reflist) {
 936                 selectnode.one('.fp-reflist').removeClass('fp-unknown').addClass('fp-loading');
 937                 this.request({
 938                     action: 'getreferences',
 939                     scope: this,
 940                     params: {'filepath':node.filepath,'filename':node.fullname},
 941                     callback: function(id, obj, args) {
 942                         // check if we did not select another file meanwhile
 943                         var scope = args.scope;
 944                         if (scope.selectui.fileinfo && node &&
 945                                 scope.selectui.fileinfo.filepath == node.filepath &&
 946                                 scope.selectui.fileinfo.fullname == node.fullname) {
 947                             selectnode.one('.fp-reflist').removeClass('fp-loading');
 948                             if (obj.references) {
 949                                 node.reflist = '';
 950                                 for (var i in obj.references) {
 951                                     node.reflist += '<li>'+obj.references[i]+'</li>';
 952                                 }
 953                                 selectnode.one('.fp-reflist .fp-value').setContent(node.reflist);
 954                             } else {
 955                                 selectnode.one('.fp-reflist .fp-value').setContent('');
 956                             }
 957                         }
 958                     }
 959                 }, false);
 960             }
 961             // show panel
 962             this.selectui.show();
 963         },
 964         render: function() {
 965             this.print_path();
 966             this.view_files();
 967         }
 968     });
 969
 970     // finally init everything needed
 971     // hide loading picture, display filemanager interface
 972     var filemanager = Y.one('#filemanager-'+options.client_id);
 973     filemanager.removeClass('fm-loading').addClass('fm-loaded');
 974
 975     var manager = new FileManagerHelper(options);
 976     var dndoptions = {
 977         filemanager: manager,
 978         acceptedtypes: options.accepted_types,
 979         clientid: options.client_id,
 980         author: options.author,
 981         maxfiles: options.maxfiles,
 982         maxbytes: options.maxbytes,
 983         itemid: options.itemid,
 984         repositories: manager.filepicker_options.repositories,
 985         containerid: manager.dndcontainer.get('id')
 986     };
 987     M.form_dndupload.init(Y, dndoptions);
 988 };