Integrate the Windows 8 code into the Chromium tree.

win8/metro_driver/settings_handler.cc

Index: win8/metro_driver/settings_handler.cc
diff --git a/win8/metro_driver/settings_handler.cc b/win8/metro_driver/settings_handler.cc
new file mode 100644
index 0000000000000000000000000000000000000000..6feae24320f7390c736f7cc2e3c33de095b6a67e
--- /dev/null
+++ b/win8/metro_driver/settings_handler.cc
@@ -0,0 +1,175 @@
+// 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 "stdafx.h"
+#include "settings_handler.h"
+
+// This include allows to send WM_SYSCOMMANDs to chrome.
+#include "chrome/app/chrome_command_ids.h"
+#include "chrome_app_view.h"
+#include "winrt_utils.h"
+
+typedef winfoundtn::ITypedEventHandler<
+    winui::ApplicationSettings::SettingsPane*,
+    winui::ApplicationSettings::SettingsPaneCommandsRequestedEventArgs*>
+        CommandsRequestedHandler;
+
+namespace {
+
+// String identifiers for the settings pane commands.
+const wchar_t* kSettingsId = L"settings";
+const wchar_t* kHelpId = L"help";
+const wchar_t* kAboutId = L"about";
+
+}
+
+SettingsHandler::SettingsHandler() {
+  DVLOG(1) << __FUNCTION__;
+}
+
+SettingsHandler::~SettingsHandler() {
+  DVLOG(1) << __FUNCTION__;
+}
+
+HRESULT SettingsHandler::Initialize() {
+  mswr::ComPtr<winui::ApplicationSettings::ISettingsPaneStatics>
+      settings_pane_statics;
+  HRESULT hr = winrt_utils::CreateActivationFactory(
+      RuntimeClass_Windows_UI_ApplicationSettings_SettingsPane,
+      settings_pane_statics.GetAddressOf());
+  CheckHR(hr, "Failed to activate ISettingsPaneStatics");
+
+  mswr::ComPtr<winui::ApplicationSettings::ISettingsPane> settings_pane;
+  hr = settings_pane_statics->GetForCurrentView(&settings_pane);
+  CheckHR(hr, "Failed to get ISettingsPane");
+
+  hr = settings_pane->add_CommandsRequested(
+      mswr::Callback<CommandsRequestedHandler>(
+          this,
+          &SettingsHandler::OnSettingsCommandsRequested).Get(),
+      &settings_token_);
+  CheckHR(hr, "Failed to add CommandsRequested");
+
+  return hr;
+}
+
+HRESULT SettingsHandler::OnSettingsCommandsRequested(
+    winui::ApplicationSettings::ISettingsPane* settings_pane,
+    winui::ApplicationSettings::ISettingsPaneCommandsRequestedEventArgs* args) {
+  mswr::ComPtr<winui::ApplicationSettings::ISettingsCommandFactory>
+      settings_command_factory;
+  HRESULT hr = winrt_utils::CreateActivationFactory(
+      RuntimeClass_Windows_UI_ApplicationSettings_SettingsCommand,
+      settings_command_factory.GetAddressOf());
+  CheckHR(hr, "Failed to activate ISettingsCommandFactory");
+
+  mswr::ComPtr<winui::ApplicationSettings::ISettingsPaneCommandsRequest>
+      settings_command_request;
+  hr = args->get_Request(&settings_command_request);
+  CheckHR(hr, "Failed to get_Request");
+
+  mswr::ComPtr<SettingsHandler::ISettingsCommandVector> application_commands;
+  hr = settings_command_request->get_ApplicationCommands(&application_commands);
+  CheckHR(hr, "Failed to get_ApplicationCommands");
+
+  // TODO(mad): Internationalize the hard coded user visible strings.
+  hr = AppendNewSettingsCommand(
+      kSettingsId, L"Settings", settings_command_factory.Get(),
+      application_commands.Get());
+  CheckHR(hr, "Failed to append new settings command");
+
+  hr = AppendNewSettingsCommand(
+      kHelpId, L"Help", settings_command_factory.Get(),
+      application_commands.Get());
+  CheckHR(hr, "Failed to append new help command");
+
+  hr = AppendNewSettingsCommand(
+      kAboutId, L"About", settings_command_factory.Get(),
+      application_commands.Get());
+  CheckHR(hr, "Failed to append new about command");
+
+  return hr;
+}
+
+HRESULT SettingsHandler::AppendNewSettingsCommand(
+    const wchar_t* id,
+    const wchar_t* name,
+    winui::ApplicationSettings::ISettingsCommandFactory*
+        settings_command_factory,
+    SettingsHandler::ISettingsCommandVector* settings_command_vector) {
+  mswr::ComPtr<winfoundtn::IPropertyValue> settings_id;
+  HRESULT hr = GetSettingsId(id, &settings_id);
+  CheckHR(hr, "Can't get settings id");
+
+  mswrw::HString settings_name;
+  settings_name.Attach(MakeHString(name));
+  mswr::ComPtr<winui::Popups::IUICommand> command;
+  hr = settings_command_factory->CreateSettingsCommand(
+      settings_id.Get(),
+      settings_name.Get(),
+      mswr::Callback<winui::Popups::IUICommandInvokedHandler>(
+          &SettingsHandler::OnSettings).Get(),
+      command.GetAddressOf());
+  CheckHR(hr, "Can't create settings command");
+
+  hr = settings_command_vector->Append(command.Get());
+  CheckHR(hr, "Failed to append settings command");
+
+  return hr;
+}
+
+HRESULT SettingsHandler::OnSettings(winui::Popups::IUICommand* command) {
+  mswr::ComPtr<winfoundtn::IPropertyValue> settings_id;
+  HRESULT hr = GetSettingsId(kSettingsId, &settings_id);
+  CheckHR(hr, "Failed to get settings id");
+
+  mswr::ComPtr<winfoundtn::IPropertyValue> help_id;
+  hr = GetSettingsId(kHelpId, &help_id);
+  CheckHR(hr, "Failed to get settings id");
+
+  mswr::ComPtr<winfoundtn::IPropertyValue> about_id;
+  hr = GetSettingsId(kAboutId, &about_id);
+  CheckHR(hr, "Failed to get settings id");
+
+  mswr::ComPtr<winfoundtn::IPropertyValue> command_id;
+  hr = command->get_Id(&command_id);
+  CheckHR(hr, "Failed to get command id");
+
+  INT32 result = -1;
+  hr = winrt_utils::CompareProperties(
+      command_id.Get(), settings_id.Get(), &result);
+  CheckHR(hr, "Failed to compare ids");
+
+  HWND chrome_window = globals.host_windows.front().first;
+
+  if (result == 0) {
+    ::PostMessageW(chrome_window, WM_SYSCOMMAND, IDC_OPTIONS, 0);
+    return S_OK;
+  }
+
+  hr = winrt_utils::CompareProperties(command_id.Get(), help_id.Get(), &result);
+  CheckHR(hr, "Failed to compare ids");
+  if (result == 0) {
+    ::PostMessageW(chrome_window, WM_SYSCOMMAND, IDC_HELP_PAGE_VIA_MENU, 0);
+    return S_OK;
+  }
+
+  hr = winrt_utils::CompareProperties(
+      command_id.Get(), about_id.Get(), &result);
+  CheckHR(hr, "Failed to compare ids");
+  if (result == 0) {
+    ::PostMessageW(chrome_window, WM_SYSCOMMAND, IDC_ABOUT, 0);
+    return S_OK;
+  }
+
+  return S_OK;
+}
+
+HRESULT SettingsHandler::GetSettingsId(
+    const wchar_t* value, winfoundtn::IPropertyValue** settings_id) {
+  mswrw::HString property_value_string;
+  property_value_string.Attach(MakeHString(value));
+  return winrt_utils::CreateStringProperty(property_value_string.Get(),
+                                           settings_id);
+}