Files.app: Add subfolders in the left nav

chrome/browser/resources/file_manager/js/file_manager_commands.js

Index: chrome/browser/resources/file_manager/js/file_manager_commands.js
diff --git a/chrome/browser/resources/file_manager/js/file_manager_commands.js b/chrome/browser/resources/file_manager/js/file_manager_commands.js
index e7fa055aa7fd79a6ae1fd30ca422de253c471092..db791c51b9d301e4196e15162f48d2376fd4a6f7 100644
--- a/chrome/browser/resources/file_manager/js/file_manager_commands.js
+++ b/chrome/browser/resources/file_manager/js/file_manager_commands.js
@@ -8,24 +8,25 @@ var CommandUtil = {};
  * Extracts root on which command event was dispatched.
  *
  * @param {Event} event Command event for which to retrieve root to operate on.
- * @param {cr.ui.List} rootsList Root list to extract root node.
+ * @param {DirectoryTree} directoryTree Directory tree to extract root node.
  * @return {DirectoryEntry} Found root.
  */
-CommandUtil.getCommandRoot = function(event, rootsList) {
-  var result = rootsList.dataModel.item(
-                   rootsList.getIndexOfListItem(event.target)) ||
-               rootsList.selectedItem;
+CommandUtil.getCommandRoot = function(event, directoryTree) {
+  var entry = directoryTree.selectedItem;
 
-  return result;
+  if (entry && PathUtil.isRootPath(entry.fullPath))
+    return entry;
+  else
+    return null;
 };
 
 /**
  * @param {Event} event Command event for which to retrieve root type.
- * @param {cr.ui.List} rootsList Root list to extract root node.
- * @return {string} Found root.
+ * @param {DirectoryTree} directoryTree Directory tree to extract root node.
+ * @return {?string} Found root.
  */
-CommandUtil.getCommandRootType = function(event, rootsList) {
-  var root = CommandUtil.getCommandRoot(event, rootsList);
+CommandUtil.getCommandRootType = function(event, directoryTree) {
+  var root = CommandUtil.getCommandRoot(event, directoryTree);
 
   return root && PathUtil.getRootType(root.fullPath);
 };
@@ -128,13 +129,21 @@ Commands.defaultCommand = {
  * Unmounts external drive.
  */
 Commands.unmountCommand = {
-  execute: function(event, rootsList, fileManager) {
-    var root = CommandUtil.getCommandRoot(event, rootsList);
+  /**
+   * @param {Event} event Command event.
+   * @param {DirectoryTree} directoryTree Target directory tree.
+   */
+  execute: function(event, directoryTree, fileManager) {
+    var root = CommandUtil.getCommandRoot(event, directoryTree);
     if (root)
       fileManager.unmountVolume(PathUtil.getRootPath(root.fullPath));
   },
-  canExecute: function(event, rootsList) {
-    var rootType = CommandUtil.getCommandRootType(event, rootsList);
+  /**
+   * @param {Event} event Command event.
+   * @param {DirectoryTree} directoryTree Target directory tree.
+   */
+  canExecute: function(event, directoryTree) {
+    var rootType = CommandUtil.getCommandRootType(event, directoryTree);
 
     event.canExecute = (rootType == RootType.ARCHIVE ||
                         rootType == RootType.REMOVABLE);
@@ -148,8 +157,12 @@ Commands.unmountCommand = {
  * Formats external drive.
  */
 Commands.formatCommand = {
-  execute: function(event, rootsList, fileManager) {
-    var root = CommandUtil.getCommandRoot(event, rootsList);
+  /**
+   * @param {Event} event Command event.
+   * @param {DirectoryTree} directoryTree Target directory tree.
+   */
+  execute: function(event, directoryTree, fileManager) {
+    var root = CommandUtil.getCommandRoot(event, directoryTree);
 
     if (root) {
       var url = util.makeFilesystemUrl(PathUtil.getRootPath(root.fullPath));
@@ -158,8 +171,12 @@ Commands.formatCommand = {
           chrome.fileBrowserPrivate.formatDevice.bind(null, url));
     }
   },
-  canExecute: function(event, rootsList, fileManager, directoryModel) {
-    var root = CommandUtil.getCommandRoot(event, rootsList);
+  /**
+   * @param {Event} event Command event.
+   * @param {DirectoryTree} directoryTree Target directory tree.
+   */
+  canExecute: function(event, directoryTree, fileManager, directoryModel) {
+    var root = CommandUtil.getCommandRoot(event, directoryTree);
     var removable = root &&
                     PathUtil.getRootType(root.fullPath) == RootType.REMOVABLE;
     var isReadOnly = root && directoryModel.isPathReadOnly(root.fullPath);
@@ -172,8 +189,12 @@ Commands.formatCommand = {
  * Imports photos from external drive
  */
 Commands.importCommand = {
-  execute: function(event, rootsList) {
-    var root = CommandUtil.getCommandRoot(event, rootsList);
+  /**
+   * @param {Event} event Command event.
+   * @param {DirectoryTree} directoryTree Target directory tree.
+   */
+  execute: function(event, directoryTree) {
+    var root = CommandUtil.getCommandRoot(event, directoryTree);
     if (!root)
       return;
 
@@ -184,9 +205,13 @@ Commands.importCommand = {
             type: 'popup' });
     }.bind(this));
   },
-  canExecute: function(event, rootsList) {
-    event.canExecute =
-        (CommandUtil.getCommandRootType(event, rootsList) != RootType.DRIVE);
+  /**
+   * @param {Event} event Command event.
+   * @param {DirectoryTree} directoryTree Target directory tree.
+   */
+  canExecute: function(event, directoryTree) {
+    var rootType = CommandUtil.getCommandRootType(event, directoryTree);
+    event.canExecute = (rootType != RootType.DRIVE);
   }
 };