Add gdata content search

chrome/browser/chromeos/gdata/gdata_file_system_proxy.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/gdata/gdata_file_system_proxy.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/platform_file.h"
 #include "base/string_util.h"
 #include "base/values.h"
 #include "content/public/browser/browser_thread.h"
+#include "chrome/browser/chromeos/gdata/gdata_file_system.h"
 #include "chrome/browser/chromeos/gdata/gdata.pb.h"
 #include "chrome/browser/chromeos/gdata/gdata_system_service.h"
-#include "chrome/browser/chromeos/gdata/gdata_file_system.h"
+#include "chrome/browser/chromeos/gdata/gdata_util.h"
 #include "webkit/blob/shareable_file_reference.h"
 #include "webkit/fileapi/file_system_file_util_proxy.h"
 #include "webkit/fileapi/file_system_types.h"
 #include "webkit/fileapi/file_system_util.h"
 
 using base::MessageLoopProxy;
 using content::BrowserThread;
 using fileapi::FileSystemOperationInterface;
 using webkit_blob::ShareableFileReference;
 
@@ skipping 117 matching lines @@
   if (!ValidateUrl(file_url, &file_path)) {
     base::MessageLoopProxy::current()->PostTask(
         FROM_HERE,
         base::Bind(callback,
                    base::PLATFORM_FILE_ERROR_NOT_FOUND,
                    std::vector<base::FileUtilProxy::Entry>(),
                    false));
     return;
   }
 
+  // File paths with type GDATA_SEARH_PATH_QUERY are virtual path reserved for
+  // displaying gdata content search results. They are formatted so their base
+  // name equals to search query. So to get their contents, we have to kick off
+  // content search.
+  if (util::GetSearchPathStatus(file_path) == util::GDATA_SEARCH_PATH_QUERY) {
+    file_system_->SearchAsync(
+        file_path.BaseName().value(),
+        base::Bind(&GDataFileSystemProxy::OnReadDirectory,
+                   this,
+                   file_system_->hide_hosted_documents(),
+                   callback));
+    return;
+  }
+
   file_system_->ReadDirectoryByPathAsync(
       file_path,
       base::Bind(&GDataFileSystemProxy::OnReadDirectory,
                  this,
                  file_system_->hide_hosted_documents(),
                  callback));
 }
 
 void GDataFileSystemProxy::Remove(const GURL& file_url, bool recursive,
     const FileSystemOperationInterface::StatusCallback& callback) {
@@ skipping 99 matching lines @@
     if (hide_hosted_documents && proto.is_hosted_document())
         continue;
     entries.push_back(
         GDataEntryProtoToFileUtilProxyEntry(proto.gdata_entry()));
   }
 
   callback.Run(base::PLATFORM_FILE_OK, entries, false);
 }
 
 }  // namespace gdata