[Files.app] Show dot files in the Drive volume.

chrome/browser/resources/file_manager/foreground/js/file_manager.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 'use strict';
 
 /**
  * FileManager constructor.
  *
  * FileManager objects encapsulate the functionality of the file selector
@@ skipping 26 matching lines @@
    * @private
    */
   this.selectionHandler_ = null;
 
   /**
    * VolumeInfo of the current volume.
    * @type {VolumeInfo}
    * @private
    */
   this.currentVolumeInfo_ = null;
+
+  /**
+   * Whether to show dot files in the non-Drive folder. Default: false.
+   * @type {boolean}
+   * @private
+   */
+  this.dotFilesHidden_ = false;
 }
 
 FileManager.prototype = {
   __proto__: cr.EventTarget.prototype,
   get directoryModel() {
     return this.directoryModel_;
   },
   get navigationList() {
     return this.navigationList_;
   },
@@ skipping 843 matching lines @@
     // view that is not in use.
     this.emptyDataModel_ = new cr.ui.ArrayDataModel([]);
     this.emptySelectionModel_ = new cr.ui.ListSelectionModel();
 
     var singleSelection =
         this.dialogType == DialogType.SELECT_OPEN_FILE ||
         this.dialogType == DialogType.SELECT_FOLDER ||
         this.dialogType == DialogType.SELECT_UPLOAD_FOLDER ||
         this.dialogType == DialogType.SELECT_SAVEAS_FILE;
 
-    this.fileFilter_ = new FileFilter(
-        this.metadataCache_,
-        false  /* Don't show dot files by default. */);
+    this.fileFilter_ = new FileFilter(this.metadataCache_);
 
     this.fileWatcher_ = new FileWatcher(this.metadataCache_);
     this.fileWatcher_.addEventListener(
         'watcher-metadata-changed',
         this.onWatcherMetadataChanged_.bind(this));
 
     this.directoryModel_ = new DirectoryModel(
         singleSelection,
         this.fileFilter_,
         this.fileWatcher_,
@@ skipping 383 matching lines @@
       var regexp = new RegExp('.*(' +
           this.fileTypes_[selectedIndex - 1].extensions.join('|') + ')$', 'i');
       var filter = function(entry) {
         return entry.isDirectory || regexp.test(entry.name);
       };
       this.fileFilter_.addFilter('fileType', filter);
     }
   };
 
   /**
+   * Filters dot files if the setting is enabled and the current directory is
+   * '/Downloads'.
+   *
+   * @return {boolean} True if the filter is enabled, false otherwise.
+   * @private
+   */
+  FileManager.prototype.updateDotFilesFilter_ = function() {
+    var enabled =
+        this.dotFilesHidden_ &&
+        this.currentVolumeInfo_ &&
+        this.currentVolumeInfo_.volumeType !== util.VolumeType.DRIVE;
+
+    if (enabled) {
+      this.fileFilter_.addFilter(
+          'dot-file-hidden',
+          function(entry) {
+            return (entry.name.charAt(0) !== '.');
+          });
+    } else {
+      this.fileFilter_.removeFilter('dot-file-hidden');
+    }
+
+    return enabled;
+  };
+
+  /**
    * Resize details and thumb views to fit the new window size.
    * @private
    */
   FileManager.prototype.onResize_ = function() {
     if (this.listType_ == FileManager.ListType.THUMBNAIL)
       this.grid_.relayout();
     else
       this.table_.relayout();
 
     // May not be available during initialization.
@@ skipping 975 matching lines @@
     this.selectionHandler_.onFileSelectionChanged();
     this.ui_.searchBox.clear();
     // TODO(mtomasz): Use Entry.toURL() instead of fullPath.
     // TODO(mtomasz): Consider remembering the selection.
     util.updateAppState(
         this.getCurrentDirectoryEntry() ?
         this.getCurrentDirectoryEntry().fullPath : '',
         '' /* selectionPath */,
         '' /* opt_param */);
 
+    this.updateDotFilesFilter_();
+
     if (this.commandHandler)
       this.commandHandler.updateAvailability();
 
     this.updateUnformattedVolumeStatus_();
     this.updateTitle_();
 
     var currentEntry = this.getCurrentDirectoryEntry();
     this.previewPanel_.currentEntry = util.isFakeEntry(currentEntry) ?
         null : currentEntry;
   };
@@ skipping 513 matching lines @@
    * @private
    */
   FileManager.prototype.onKeyDown_ = function(event) {
     if (event.srcElement === this.renameInput_) {
       // Ignore keydown handler in the rename input box.
       return;
     }
 
     switch (util.getKeyModifiers(event) + event.keyCode) {
       case 'Ctrl-190':  // Ctrl-. => Toggle filter files.
-        this.fileFilter_.setFilterHidden(
-            !this.fileFilter_.isFilterHiddenOn());
-        event.preventDefault();
+        this.dotFilesHidden_ = !this.dotFilesHidden_;
+        this.updateDotFilesFilter_();
         return;
 
       case '27':  // Escape => Cancel dialog.
         if (this.dialogType != DialogType.FULL_PAGE) {
           // If there is nothing else for ESC to do, then cancel the dialog.
           event.preventDefault();
           this.cancelButton_.click();
         }
         break;
     }
@@ skipping 446 matching lines @@
   FileManager.prototype.validateFileName_ = function(
       parentEntry, name, onDone) {
     var msg;
     var testResult = /[\/\\\<\>\:\?\*\"\|]/.exec(name);
     if (testResult) {
       msg = strf('ERROR_INVALID_CHARACTER', testResult[0]);
     } else if (/^\s*$/i.test(name)) {
       msg = str('ERROR_WHITESPACE_NAME');
     } else if (/^(CON|PRN|AUX|NUL|COM[1-9]|LPT[1-9])$/i.test(name)) {
       msg = str('ERROR_RESERVED_NAME');
-    } else if (this.fileFilter_.isFilterHiddenOn() && name[0] == '.') {
+    } else if (this.updateDotFilesFilter_() && name[0] == '.') {
       msg = str('ERROR_HIDDEN_NAME');
     }
 
     if (msg) {
       this.alert.show(msg, function() {
         onDone(false);
       });
       return;
     }
 
@@ skipping 359 matching lines @@
       callback(this.preferences_);
       return;
     }
 
     chrome.fileBrowserPrivate.getPreferences(function(prefs) {
       this.preferences_ = prefs;
       callback(prefs);
     }.bind(this));
   };
 })();