Files.app: Provide detailed change information on onDirectoryChanged event

chrome/browser/chromeos/drive/change_list_processor.cc

 // 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.
 
 #include "chrome/browser/chromeos/drive/change_list_processor.h"
 
 #include "base/metrics/histogram.h"
 #include "base/strings/string_number_conversions.h"
 #include "chrome/browser/chromeos/drive/drive.pb.h"
+#include "chrome/browser/chromeos/drive/file_change.h"
 #include "chrome/browser/chromeos/drive/file_system_util.h"
 #include "chrome/browser/chromeos/drive/resource_entry_conversion.h"
 #include "chrome/browser/chromeos/drive/resource_metadata.h"
 #include "chrome/browser/drive/drive_api_util.h"
 #include "google_apis/drive/drive_api_parser.h"
 
 namespace drive {
 namespace internal {
 
 namespace {
@@ skipping 86 matching lines @@
       ++entries_index;
     }
   }
   entries_.resize(entries_index);
   parent_resource_ids_.resize(entries_index);
 }
 
 ChangeList::~ChangeList() {}
 
 ChangeListProcessor::ChangeListProcessor(ResourceMetadata* resource_metadata)
-  : resource_metadata_(resource_metadata) {
+    : resource_metadata_(resource_metadata), changed_files_(new FileChange) {
 }
 
 ChangeListProcessor::~ChangeListProcessor() {
 }
 
 FileError ChangeListProcessor::Apply(
     scoped_ptr<google_apis::AboutResource> about_resource,
     ScopedVector<ChangeList> change_lists,
     bool is_delta_update) {
   DCHECK(about_resource);
@@ skipping 346 matching lines @@
 void ChangeListProcessor::UpdateChangedDirs(const ResourceEntry& entry) {
   DCHECK(!entry.resource_id().empty());
 
   std::string local_id;
   base::FilePath file_path;
   if (resource_metadata_->GetIdByResourceId(
           entry.resource_id(), &local_id) == FILE_ERROR_OK)
     resource_metadata_->GetFilePath(local_id, &file_path);
 
   if (!file_path.empty()) {
-    // Notify parent.
-    changed_dirs_.insert(file_path.DirName());
-
-    if (entry.file_info().is_directory()) {
-      // Notify self if entry is a directory.
-      changed_dirs_.insert(file_path);
-
-      // Notify all descendants if it is a directory deletion.
-      if (entry.deleted()) {
-        std::set<base::FilePath> sub_directories;
-        resource_metadata_->GetSubDirectoriesRecursively(local_id,
-                                                         &sub_directories);
-        changed_dirs_.insert(sub_directories.begin(), sub_directories.end());
-      }
-    }
+    FileChange::ChangeType type =
+        entry.deleted() ? FileChange::DELETE : FileChange::ADD_OR_UPDATE;
+    changed_files_->Update(file_path, entry, type);
   }
 }
 
 }  // namespace internal
 }  // namespace drive