Add Drive API parser for About/Apps json

chrome/browser/chromeos/gdata/drive_api_parser.h

Index: chrome/browser/chromeos/gdata/drive_api_parser.h
diff --git a/chrome/browser/chromeos/gdata/drive_api_parser.h b/chrome/browser/chromeos/gdata/drive_api_parser.h
new file mode 100644
index 0000000000000000000000000000000000000000..0a4425bcaf49fedaff515cbfd98182c4a3138b90
--- /dev/null
+++ b/chrome/browser/chromeos/gdata/drive_api_parser.h
@@ -0,0 +1,208 @@
+// 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.
+
+#ifndef CHROME_BROWSER_CHROMEOS_GDATA_DRIVE_API_PARSER_H_
+#define CHROME_BROWSER_CHROMEOS_GDATA_DRIVE_API_PARSER_H_
+
+#include <string>
+#include <vector>
+
+#include "base/compiler_specific.h"
+#include "base/gtest_prod_util.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/scoped_vector.h"
+#include "base/string_piece.h"
+#include "base/time.h"
+#include "googleurl/src/gurl.h"
+
+namespace base {
+class Value;
+template <class StructType>
+class JSONValueConverter;
+
+namespace internal {
+template <class NestedType>
+class RepeatedMessageConverter;
+}  // namespace internal
+}  // namespace base
+
+// TODO(kochi): Rename to namespace drive. http://crbug.com/136371
+namespace gdata {
+
+// About resource represents the account information about the current user.
+class AboutResource {
+ public:
+  ~AboutResource();
+
+  // Registers the mapping between JSON field names and the members in this
+  // class.
+  static void RegisterJSONConverter(
+      base::JSONValueConverter<AboutResource>* converter);
+
+  static scoped_ptr<AboutResource> CreateFrom(const base::Value& value);

[satorux1, 2012/07/24 16:15:26]

function comment is missing. CreateFrom() and Parse() are similar. which one
should we use?

[kochi, 2012/07/25 06:24:04]

Done.

+
+  // Parses and initializes data members from content of |value|.
+  // Return false if parsing fails.
+  bool Parse(const base::Value& value) OVERRIDE;
+
+  const std::string& root_folder_id() const { return root_folder_id_; }

[satorux1, 2012/07/24 16:15:26]

please document this. with the old API, the root directory resource ID is always
set to "folder:root". is this the same with the new API?

[kochi, 2012/07/25 06:24:04]

The short answer is no, thus this field exists.
I also added a link to original json description in
developers.google.com in the class comment.

+  int64 quota_bytes_total() const { return quota_bytes_total_; }
+  int64 quota_bytes_used() const { return quota_bytes_used_; }
+  int64 largest_change_id() const { return largest_change_id_; }
+
+ private:
+  friend class DriveAPIParserTest;
+  FRIEND_TEST_ALL_PREFIXES(DriveAPIParserTest, AboutResourceParser);
+  AboutResource();
+
+  std::string root_folder_id_;
+  int64 quota_bytes_total_;
+  int64 quota_bytes_used_;
+  int64 largest_change_id_;
+
+  DISALLOW_COPY_AND_ASSIGN(AboutResource);
+};
+
+class DriveAppIcon {

[satorux1, 2012/07/24 16:15:26]

class comment is missing.

[kochi, 2012/07/25 06:24:04]

Done.

+ public:
+  enum IconCategory {
+    UNKNOWN,         // Uninitialized state
+    DOCUMENT,        // Document icon for various MIME types
+    APPLICATION,     // Application icon for various MIME types
+    SHARED_DOCUMENT, // Icon for documents that are shared from other users.
+  };
+
+  ~DriveAppIcon();
+
+  static void RegisterJSONConverter(
+      base::JSONValueConverter<DriveAppIcon>* converter);
+  static scoped_ptr<DriveAppIcon> CreateFrom(const base::Value& value);
+
+  bool Parse(const base::Value& value);
+
+  // Category of the icon.
+  IconCategory category() const { return category_; }
+
+  // Size in pixels of one side of the icon (icons are always square).
+  int size() const { return size_; }

[satorux1, 2012/07/24 16:15:26]

size -> side_length() ?

[kochi, 2012/07/25 06:24:04]

I tried to use the same field name as JSON, but I think this might be confusing
against other STL size() usages.
As this basically plays same role as AppIcon class for WAPI,
I copied the name (icon_side_length) from it.

+
+  const GURL& icon_url() const { return icon_url_; }
+
+ private:
+  // Extracts the icon category from the given string. Returns false and does
+  // not change |result| when |scheme| has an unrecognizable value.
+  static bool GetIconCategory(const base::StringPiece& category,
+                              IconCategory* result);
+
+  friend class base::internal::RepeatedMessageConverter<DriveAppIcon>;
+  friend class AppResource;
+  DriveAppIcon();
+
+  IconCategory category_;
+  int size_;
+  GURL icon_url_;
+
+  DISALLOW_COPY_AND_ASSIGN(DriveAppIcon);
+};
+
+class AppResource {

[satorux1, 2012/07/24 16:15:26]

class comment 

[kochi, 2012/07/25 06:24:05]

Done.

+ public:
+  ~AppResource();
+
+  static void RegisterJSONConverter(
+      base::JSONValueConverter<AppResource>* converter);
+  static scoped_ptr<AppResource> CreateFrom(const base::Value& value);
+
+  bool Parse(const base::Value& value);
+
+  const std::string& id() const { return id_; }
+  const std::string& name() const { return name_; }
+  const std::string& object_type() const { return object_type_; }
+  bool supports_create() const { return supports_create_; }
+  bool supports_import() const { return supports_import_; }
+  bool installed() const { return installed_; }
+  bool authorized() const { return authorized_; }
+  const GURL& product_url() const { return product_url_; }

[satorux1, 2012/07/24 16:15:26]

Please document these fields.

[kochi, 2012/07/25 06:24:05]

Done.

+
+  // List of primary mime types supported by this WebApp. Primary status should
+  // trigger this WebApp becoming the default handler of file instances that
+  // have these mime types.
+  const ScopedVector<std::string>& primary_mimetypes() const {
+    return primary_mimetypes_;
+  }
+
+  // List of secondary mime types supported by this WebApp. Secondary status
+  // should make this WebApp show up in "Open with..." pop-up menu of the
+  // default action menu for file with matching mime types.
+  const ScopedVector<std::string>& secondary_mimetypes() const {
+    return secondary_mimetypes_;
+  }
+
+  // List of primary file extensions supported by this WebApp. Primary status
+  // should trigger this WebApp becoming the default handler of file instances
+  // that match these extensions.
+  const ScopedVector<std::string>& primary_file_extensions() const {
+    return primary_file_extensions_;
+  }
+
+  // List of secondary file extensions supported by this WebApp. Secondary
+  // status should make this WebApp show up in "Open with..." pop-up menu of the
+  // default action menu for file with matching extensions.
+  const ScopedVector<std::string>& secondary_file_extensions() const {
+    return secondary_file_extensions_;
+  }
+
+  const ScopedVector<DriveAppIcon>& icons() const {
+    return icons_;
+  }
+
+ private:
+  friend class base::internal::RepeatedMessageConverter<AppResource>;
+  friend class AppList;
+  AppResource();
+
+  std::string id_;
+  std::string name_;
+  std::string object_type_;
+  bool supports_create_;
+  bool supports_import_;
+  bool installed_;
+  bool authorized_;
+  GURL product_url_;
+  ScopedVector<std::string> primary_mimetypes_;
+  ScopedVector<std::string> secondary_mimetypes_;
+  ScopedVector<std::string> primary_file_extensions_;
+  ScopedVector<std::string> secondary_file_extensions_;
+  ScopedVector<DriveAppIcon> icons_;
+
+  DISALLOW_COPY_AND_ASSIGN(AppResource);
+};
+
+class AppList {

[satorux1, 2012/07/24 16:15:26]

class comment.

[kochi, 2012/07/25 06:24:05]

Done.

+ public:
+  ~AppList();
+
+  static void RegisterJSONConverter(
+      base::JSONValueConverter<AppList>* converter);
+  static scoped_ptr<AppList> CreateFrom(const base::Value& value);
+
+  bool Parse(const base::Value& value);
+
+  const std::string& etag() const { return etag_; }
+  const ScopedVector<AppResource>& items() const { return items_; }
+
+ private:
+  friend class DriveAPIParserTest;
+  FRIEND_TEST_ALL_PREFIXES(DriveAPIParserTest, AppListParser);
+  AppList();
+
+  std::string etag_;
+  ScopedVector<AppResource> items_;
+
+  DISALLOW_COPY_AND_ASSIGN(AppList);
+};
+
+}  // namespace gdata
+
+#endif  // CHROME_BROWSER_CHROMEOS_GDATA_DRIVE_API_PARSER_H_