drive: Add drive/trash

chrome/browser/chromeos/drive/resource_metadata.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/resource_metadata.h"
 
 #include "base/guid.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "base/sys_info.h"
@@ skipping 96 matching lines @@
   return FILE_ERROR_OK;
 }
 
 ResourceMetadata::~ResourceMetadata() {
   DCHECK(blocking_task_runner_->RunsTasksOnCurrentThread());
 }
 
 bool ResourceMetadata::SetUpDefaultEntries() {
   DCHECK(blocking_task_runner_->RunsTasksOnCurrentThread());
 
-  // Initialize the grand root and "other" entries. "/drive" and "/drive/other".
+  // Initialize "/drive", "/drive/other" and "drive/trash".
   ResourceEntry entry;
   if (!storage_->GetEntry(util::kDriveGrandRootLocalId, &entry)) {
     ResourceEntry root;
     root.mutable_file_info()->set_is_directory(true);
     // TODO(hashimoto): Stop setting dummy resource ID here.
     root.set_resource_id(util::kDriveGrandRootLocalId);
     root.set_local_id(util::kDriveGrandRootLocalId);
     root.set_title(util::kDriveGrandRootDirName);
     SetBaseNameFromTitle(&root);
     if (!storage_->PutEntry(root))
       return false;
   }
   if (!storage_->GetEntry(util::kDriveOtherDirLocalId, &entry)) {
     ResourceEntry other_dir;
     other_dir.mutable_file_info()->set_is_directory(true);
     // TODO(hashimoto): Stop setting dummy resource ID here.
     other_dir.set_resource_id(util::kDriveOtherDirLocalId);
     other_dir.set_local_id(util::kDriveOtherDirLocalId);
     other_dir.set_parent_local_id(util::kDriveGrandRootLocalId);
     other_dir.set_title(util::kDriveOtherDirName);
     if (!PutEntryUnderDirectory(other_dir))
       return false;
   }
+  if (!storage_->GetEntry(util::kDriveTrashDirLocalId, &entry)) {
+    ResourceEntry trash_dir;
+    trash_dir.mutable_file_info()->set_is_directory(true);
+    trash_dir.set_local_id(util::kDriveTrashDirLocalId);
+    trash_dir.set_parent_local_id(util::kDriveGrandRootLocalId);
+    trash_dir.set_title(util::kDriveTrashDirName);
+    if (!PutEntryUnderDirectory(trash_dir))
+      return false;
+  }
   return true;
 }
 
 void ResourceMetadata::DestroyOnBlockingPool() {
   DCHECK(blocking_task_runner_->RunsTasksOnCurrentThread());
   delete this;
 }
 
 int64 ResourceMetadata::GetLargestChangestamp() {
   DCHECK(blocking_task_runner_->RunsTasksOnCurrentThread());
@@ skipping 44 matching lines @@
   *out_id = local_id;
   return FILE_ERROR_OK;
 }
 
 FileError ResourceMetadata::RemoveEntry(const std::string& id) {
   DCHECK(blocking_task_runner_->RunsTasksOnCurrentThread());
 
   if (!EnoughDiskSpaceIsAvailableForDBOperation(storage_->directory_path()))
     return FILE_ERROR_NO_LOCAL_SPACE;
 
-  // Disallow deletion of special entries "/drive" and "/drive/other".
-  if (util::IsSpecialResourceId(id))
+  // Disallow deletion of default entries.
+  if (id == util::kDriveGrandRootLocalId ||
+      id == util::kDriveOtherDirLocalId ||
+      id == util::kDriveTrashDirLocalId)
     return FILE_ERROR_ACCESS_DENIED;
 
   ResourceEntry entry;
   if (!storage_->GetEntry(id, &entry))
     return FILE_ERROR_NOT_FOUND;
 
   if (!RemoveEntryRecursively(id))
     return FILE_ERROR_FAILED;
   return FILE_ERROR_OK;
 }
@@ skipping 240 matching lines @@
     for (size_t i = 0; i < children.size(); ++i) {
       if (!RemoveEntryRecursively(children[i]))
         return false;
     }
   }
   return storage_->RemoveEntry(id);
 }
 
 }  // namespace internal
 }  // namespace drive