filex/filex.js

   1 var Filex = Filex || {};
   2
   3 $(function(){
   4         'use strict';
   5
   6     // ------------------------------------------------------------------------
   7     // Models
   8     // ------------------------------------------------------------------------
   9
  10     var OfflineModel = Backbone.Model.extend({
  11         // prevent syncing with server
  12         sync: function() {
  13             return false;
  14         }
  15     });
  16
  17     Filex.File = OfflineModel.extend({
  18         defaults: {
  19             checked: false
  20         },
  21
  22         isDir: function() {
  23             return false;
  24         },
  25
  26         isFile: function() {
  27             return true;
  28         },
  29
  30         isHidden: function() {
  31             return this.get('name')[0] == '.';
  32         },
  33
  34         toggle: function() {
  35             this.set('checked', !this.get('checked'));
  36         }
  37     });
  38
  39     Filex.Directory = Filex.File.extend({
  40         isDir: function() {
  41             return true;
  42         },
  43
  44         isFile: function() {
  45             return false;
  46         }
  47     });
  48
  49     Filex.PathBit = OfflineModel.extend({
  50         defaults: {
  51             'active': false
  52         }
  53     });
  54
  55
  56     // ------------------------------------------------------------------------
  57     // Collections
  58     // ------------------------------------------------------------------------
  59
  60     Filex.FileList = Backbone.Collection.extend({
  61         url: '/filex/list/',
  62
  63         model: function(attrs, options) {
  64             switch (attrs['type']) {
  65                 case 'directory':
  66                     return new Filex.Directory(attrs, options);
  67                 case 'file':
  68                     return new Filex.File(attrs, options);
  69                 default:
  70                     console.error('Unknown model type:', attrs['type']);
  71             }
  72         },
  73
  74         comparator: function(a, b) {
  75             if (a.isFile() == b.isFile())
  76                 return a.get('name').toLowerCase().localeCompare(b.get('name').toLowerCase());
  77
  78             return (a.isFile() && b.isDir()) ? 1 : -1;
  79         },
  80
  81         hidden: function() {
  82             return this.filter(function (item) {
  83                 return item.isHidden();
  84             })
  85         },
  86
  87         visible: function () {
  88             return this.filter(function (item) {
  89                 return !item.isHidden();
  90             })
  91         }
  92     });
  93
  94     Filex.Path = Backbone.Collection.extend({
  95         model: Filex.PathBit,
  96
  97         initialize: function() {
  98             this.listenTo(this, 'reset', this.setActive);
  99             this.listenTo(this, 'add', this.setActive);
 100         },
 101
 102         setActive: function() {
 103             _.each(this.initial(), function(bit) {
 104                 bit.set('active', false);
 105             });
 106
 107             this.last().set('active', true);
 108         },
 109
 110         full: function() {
 111             return this.pluck('path').join('/') || '/';
 112         }
 113     });
 114
 115
 116     // ------------------------------------------------------------------------
 117     // Views
 118     // ------------------------------------------------------------------------
 119
 120     Filex.ListingItem = Backbone.View.extend({
 121         tagName:  'tr',
 122
 123         events: {
 124             'click': 'click'
 125         },
 126
 127         initialize: function(options) {
 128             this.view = options.view;
 129
 130             this.listenTo(this.model, 'change', this.render);
 131             this.listenTo(this.model, 'remove', this.remove);
 132             this.listenTo(this.model, 'hidden', this.toggleHidden);
 133         },
 134
 135         template: function() {
 136             var templateSelector = this.model.isDir() ? '#dir-template' : '#file-template';
 137
 138             return _.template($(templateSelector).html());
 139         },
 140
 141         render: function() {
 142             var data = this.model.toJSON();
 143             data['url_params'] = $.param({
 144                 host: this.view.host,
 145                 path: this.view.path.full(),
 146                 name: this.model.get('name')
 147             });
 148             data['cid'] = this.model.cid;
 149
 150             this.$el.html(this.template()(data));
 151             this.toggleHidden();
 152
 153             return this;
 154         },
 155
 156         toggleHidden: function() {
 157             this.$el.toggleClass('hidden', this.model.isHidden() && !this.view.showHidden());
 158         },
 159
 160         click: function(e) {
 161             if (e.target.className == 'link') {
 162                 if (this.model.isDir()) {
 163                     e.preventDefault();
 164                     this.model.trigger('selected:dir', this.model);
 165                 }
 166
 167                 return;
 168             }
 169
 170             this.model.toggle();
 171         }
 172     });
 173
 174     Filex.Breadcrumb = Backbone.View.extend({
 175         tagName: 'li',
 176
 177         events: {
 178             'click a': 'selected'
 179         },
 180
 181         initialize: function() {
 182             this.listenTo(this.model, 'change:active', this.render);
 183             this.listenTo(this.model, 'remove', this.remove);
 184         },
 185
 186         render: function() {
 187             if (this.model.get('active')) {
 188                 this.$el.text(this.model.get('text'));
 189             }
 190             else {
 191                 this.$el.html($('<a/>', {
 192                     href: '#',
 193                     text: this.model.get('text')
 194                 }));
 195             }
 196             this.$el.toggleClass('active', this.model.get('active'));
 197
 198             return this;
 199         },
 200
 201         selected: function(e) {
 202             e.preventDefault();
 203             this.model.trigger('selected', this.model);
 204         }
 205     });
 206
 207     Filex.FilexView = Backbone.View.extend({
 208         el: $('#filex'),
 209
 210         events: {
 211             'change #show-hidden': 'toggleHidden',
 212             'click #host-controls .view': 'hostEdit',
 213             'click #select-all': 'selectAll'
 214         },
 215
 216         initialize: function(options) {
 217             this.$noItems = $('#no-items');
 218             this.$error = $('#error');
 219             this.$showHidden = $('#show-hidden');
 220             this.$host = $('#host-controls');
 221             this.$selectAll = $('#select-all');
 222
 223             this.host = options.host;
 224             this.path = new Filex.Path();
 225             this.files = new Filex.FileList();
 226
 227             this.listenTo(this.path, 'reset', this.resetPath);
 228             this.listenTo(this.path, 'add', this.reloadFiles);
 229             this.listenTo(this.path, 'add', this.addPath);
 230             this.listenTo(this.path, 'selected', this.selectedPath);
 231             this.listenTo(this.files, 'reset', this.resetFiles);
 232             this.listenTo(this.files, 'selected:dir', this.selectedDir);
 233             this.listenTo(this.files, 'change:checked', this.updateSelectAll);
 234
 235             // used in selectize callbacks
 236             var view = this,
 237                 optionTemplate = _.template('<div><div><%= host %></div><div class="small text-muted"><%= path %></div></div>');
 238
 239             this.$('#host-selector').selectize({
 240                 valueField: 'host',
 241                 labelField: 'host',
 242                 searchField: ['host', 'path'],
 243                 sortField: [
 244                     {field: 'host', direction: 'asc'},
 245                     {field: 'path', direction: 'asc'}
 246                 ],
 247                 items: [this.host],
 248                 options: options.hostOptions,
 249                 render: {
 250                     option: function(item) {
 251                         return optionTemplate(item);
 252                     }
 253                 },
 254                 onDropdownClose: function() {
 255                     this.blur();
 256                 },
 257                 onBlur: function() {
 258                     view.$host.toggleClass('editing');
 259
 260                     var value = this.getValue();
 261                     if (!value) {
 262                         this.addItem(view.host, true);
 263                         return;
 264                     }
 265
 266                     if (value != view.host) {
 267                         var location = this.options[value];
 268
 269                         view.host = location.host;
 270                         view.navigate(location.path);
 271                     }
 272                 }
 273             });
 274             this.hostSelectize = this.$('#host-selector')[0].selectize;
 275
 276             this.render();
 277             this.navigate(this.hostSelectize.options[this.host].path);
 278         },
 279
 280         render: function() {
 281             this.updateSelectAll();
 282             this.$host.find('.view').text(this.host);
 283             this.$noItems.toggle(!Boolean(this.visibleFiles().length));
 284             this.$error.hide();
 285         },
 286
 287         navigate: function(path) {
 288             var pathBits = [new Filex.PathBit({'text': '/', 'path': ''})];
 289
 290             pathBits = pathBits.concat(_.map(path.replace(/(^\/+|\/+$)/g, '').split('/'), function(name) {
 291                 return new Filex.PathBit({'text': name, 'path': name});
 292             }));
 293
 294             this.path.reset(pathBits);
 295         },
 296
 297         reloadFiles: function() {
 298             this.busy();
 299
 300             var view = this;
 301
 302             this.files.fetch({
 303                 reset: true,
 304                 data: {host: this.host, path: this.path.full()},
 305                 success: function() {
 306                     view.render();
 307                     view.idle();
 308                 },
 309                 error: function(collection, response) {
 310                     view.files.reset();
 311
 312                     var msg = (response.responseJSON || {}).msg || 'Błąd serwera';
 313
 314                     view.$noItems.hide();
 315                     view.$error.find('.msg').text(msg);
 316                     view.$error.show();
 317                     view.idle();
 318                 }
 319             });
 320         },
 321
 322         addPath: function(bit) {
 323             var view = new Filex.Breadcrumb({model: bit});
 324             this.$('.path').append(view.render().el);
 325         },
 326
 327         resetPath: function(models, options) {
 328             this.reloadFiles();
 329
 330             _.each(options.previousModels, function(model) {
 331                 model.trigger('remove');
 332             });
 333
 334             this.path.each(this.addPath, this);
 335         },
 336
 337         resetFiles: function(models, options) {
 338             _.each(options.previousModels, function(model) {
 339                 model.trigger('remove');
 340             });
 341
 342             this.files.each(function(file) {
 343                 var view = new Filex.ListingItem({model: file, view: this});
 344                 this.$('tbody').append(view.render().el);
 345             }, this);
 346         },
 347
 348         toggleHidden: function() {
 349             this.files.each(function(item) { item.trigger('hidden'); }, this);
 350             this.render();
 351         },
 352
 353         selectedDir: function(dir) {
 354             this.path.add({'text': dir.get('name'), 'path': dir.get('name')});
 355         },
 356
 357         selectedPath: function(bit) {
 358             var newPath = this.path.slice(0, this.path.indexOf(bit) + 1);
 359             this.path.set(newPath);
 360             this.reloadFiles();
 361         },
 362
 363         showHidden: function() {
 364             return this.$showHidden[0].checked;
 365         },
 366
 367         hostEdit: function() {
 368             this.$host.toggleClass('editing');
 369             this.hostSelectize.focus();
 370         },
 371
 372         busy: function() {
 373             this.$el.addClass('busy');
 374         },
 375
 376         idle: function() {
 377             this.$el.removeClass('busy');
 378         },
 379
 380         visibleFiles: function() {
 381             return this.showHidden() ? this.files.models : this.files.visible();
 382         },
 383
 384         selectedFiles: function() {
 385             return _.filter(this.visibleFiles(), function(item) {
 386                 return item.get('checked');
 387             });
 388         },
 389
 390         selectAll: function() {
 391             var checked = this.$selectAll[0].checked;
 392
 393             _.each(this.visibleFiles(), function(item) {
 394                 item.set('checked', checked);
 395             })
 396         },
 397
 398         updateSelectAll: function() {
 399             this.$selectAll.prop('checked', this.selectedFiles().length == this.visibleFiles().length);
 400         },
 401
 402         clearSelection: function() {
 403             _.each(this.visibleFiles(), function(item) {
 404                 item.set('checked', false);
 405             });
 406
 407             this.updateSelectAll();
 408         }
 409     });
 410 });