Reland of move remote tree host and some related input and metro_driver code

win8/viewer/metro_viewer_process_host.cc

Index: win8/viewer/metro_viewer_process_host.cc
diff --git a/win8/viewer/metro_viewer_process_host.cc b/win8/viewer/metro_viewer_process_host.cc
deleted file mode 100644
index a3652410d413a25cefa04ab0e7af970f16f593af..0000000000000000000000000000000000000000
--- a/win8/viewer/metro_viewer_process_host.cc
+++ /dev/null
@@ -1,346 +0,0 @@
-// Copyright (c) 2013 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 "win8/viewer/metro_viewer_process_host.h"
-
-#include <shlobj.h>
-#include <stdint.h>
-
-#include "base/command_line.h"
-#include "base/files/file_path.h"
-#include "base/files/file_util.h"
-#include "base/memory/ref_counted.h"
-#include "base/path_service.h"
-#include "base/process/process.h"
-#include "base/strings/string16.h"
-#include "base/synchronization/waitable_event.h"
-#include "base/time/time.h"
-#include "base/win/scoped_comptr.h"
-#include "base/win/windows_version.h"
-#include "ipc/ipc_channel_proxy.h"
-#include "ipc/ipc_message.h"
-#include "ipc/ipc_message_macros.h"
-#include "ui/aura/remote_window_tree_host_win.h"
-#include "ui/metro_viewer/metro_viewer_messages.h"
-#include "win8/viewer/metro_viewer_constants.h"
-
-namespace {
-
-const int kViewerProcessConnectionTimeoutSecs = 60;
-
-}  // namespace
-
-namespace win8 {
-
-// static
-MetroViewerProcessHost* MetroViewerProcessHost::instance_ = NULL;
-
-MetroViewerProcessHost::InternalMessageFilter::InternalMessageFilter(
-    MetroViewerProcessHost* owner)
-    : owner_(owner) {
-}
-
-void MetroViewerProcessHost::InternalMessageFilter::OnChannelConnected(
-    int32_t peer_pid) {
-  owner_->NotifyChannelConnected();
-}
-
-MetroViewerProcessHost::InternalMessageFilter::~InternalMessageFilter() {
-}
-
-MetroViewerProcessHost::MetroViewerProcessHost(
-    const scoped_refptr<base::SingleThreadTaskRunner>& ipc_task_runner) {
-  DCHECK(!instance_);
-  instance_ = this;
-
-  channel_ = IPC::ChannelProxy::Create(kMetroViewerIPCChannelName,
-                                       IPC::Channel::MODE_NAMED_SERVER,
-                                       this,
-                                       ipc_task_runner);
-}
-
-MetroViewerProcessHost::~MetroViewerProcessHost() {
-  if (!channel_) {
-    instance_ = NULL;
-    return;
-  }
-
-  base::ProcessId viewer_process_id = GetViewerProcessId();
-  channel_->Close();
-  if (message_filter_.get()) {
-    // Wait for the viewer process to go away.
-    if (viewer_process_id != base::kNullProcessId) {
-      base::Process viewer_process =
-          base::Process::OpenWithAccess(
-              viewer_process_id,
-              PROCESS_QUERY_INFORMATION | SYNCHRONIZE);
-      if (viewer_process.IsValid()) {
-        int exit_code;
-        viewer_process.WaitForExit(&exit_code);
-      }
-    }
-    channel_->RemoveFilter(message_filter_.get());
-  }
-  instance_ = NULL;
-}
-
-base::ProcessId MetroViewerProcessHost::GetViewerProcessId() {
-  if (channel_)
-    return channel_->GetPeerPID();
-  return base::kNullProcessId;
-}
-
-bool MetroViewerProcessHost::LaunchViewerAndWaitForConnection(
-    const base::string16& app_user_model_id) {
-  DCHECK_EQ(base::kNullProcessId, channel_->GetPeerPID());
-
-  channel_connected_event_.reset(new base::WaitableEvent(false, false));
-
-  message_filter_ = new InternalMessageFilter(this);
-  channel_->AddFilter(message_filter_.get());
-
-  if (base::win::GetVersion() >= base::win::VERSION_WIN8) {
-    base::win::ScopedComPtr<IApplicationActivationManager> activator;
-    HRESULT hr = activator.CreateInstance(CLSID_ApplicationActivationManager);
-    if (SUCCEEDED(hr)) {
-      DWORD pid = 0;
-      // Use the "connect" verb to
-      hr = activator->ActivateApplication(
-          app_user_model_id.c_str(), kMetroViewerConnectVerb, AO_NONE, &pid);
-    }
-
-    LOG_IF(ERROR, FAILED(hr)) << "Tried and failed to launch Metro Chrome. "
-                              << "hr=" << std::hex << hr;
-  } else {
-    // For Windows 7 we need to launch the viewer ourselves.
-    base::FilePath chrome_path;
-    if (!PathService::Get(base::DIR_EXE, &chrome_path))
-      return false;
-    // TODO(cpu): launch with "-ServerName:DefaultBrowserServer"
-    // note that the viewer might try to launch chrome again.
-    CHECK(false);
-  }
-
-  // Having launched the viewer process, now we wait for it to connect.
-  bool success =
-      channel_connected_event_->TimedWait(base::TimeDelta::FromSeconds(
-          kViewerProcessConnectionTimeoutSecs));
-  channel_connected_event_.reset();
-  return success;
-}
-
-bool MetroViewerProcessHost::Send(IPC::Message* msg) {
-  return channel_->Send(msg);
-}
-
-bool MetroViewerProcessHost::OnMessageReceived(
-    const IPC::Message& message) {
-  DCHECK(CalledOnValidThread());
-  bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(MetroViewerProcessHost, message)
-    IPC_MESSAGE_HANDLER(MetroViewerHostMsg_FileSaveAsDone,
-                        OnFileSaveAsDone)
-    IPC_MESSAGE_HANDLER(MetroViewerHostMsg_FileOpenDone,
-                        OnFileOpenDone)
-    IPC_MESSAGE_HANDLER(MetroViewerHostMsg_MultiFileOpenDone,
-                        OnMultiFileOpenDone)
-    IPC_MESSAGE_HANDLER(MetroViewerHostMsg_OpenURL, OnOpenURL)
-    IPC_MESSAGE_HANDLER(MetroViewerHostMsg_SearchRequest, OnHandleSearchRequest)
-    IPC_MESSAGE_HANDLER(MetroViewerHostMsg_SelectFolderDone,
-                        OnSelectFolderDone)
-    IPC_MESSAGE_HANDLER(MetroViewerHostMsg_SetTargetSurface, OnSetTargetSurface)
-    IPC_MESSAGE_HANDLER(MetroViewerHostMsg_WindowSizeChanged,
-                        OnWindowSizeChanged)
-    IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP()
-  return handled ? true :
-      aura::RemoteWindowTreeHostWin::Instance()->OnMessageReceived(message);
-}
-
-// static
-void MetroViewerProcessHost::HandleActivateDesktop(
-    const base::FilePath& path,
-    bool ash_exit) {
-  if (instance_) {
-    instance_->Send(
-        new MetroViewerHostMsg_ActivateDesktop(path, ash_exit));
-  }
-}
-
-// static
-void MetroViewerProcessHost::HandleMetroExit() {
-  if (instance_)
-    instance_->Send(new MetroViewerHostMsg_MetroExit());
-}
-
-// static
-void MetroViewerProcessHost::HandleOpenFile(
-    const base::string16& title,
-    const base::FilePath& default_path,
-    const base::string16& filter,
-    const OpenFileCompletion& on_success,
-    const FileSelectionCanceled& on_failure) {
-  if (instance_) {
-    instance_->HandleOpenFileImpl(title, default_path, filter, on_success,
-                                  on_failure);
-  }
-}
-
-// static
-void MetroViewerProcessHost::HandleOpenMultipleFiles(
-    const base::string16& title,
-    const base::FilePath& default_path,
-    const base::string16& filter,
-    const OpenMultipleFilesCompletion& on_success,
-    const FileSelectionCanceled& on_failure) {
-  if (instance_) {
-    instance_->HandleOpenMultipleFilesImpl(title, default_path, filter,
-                                           on_success, on_failure);
-  }
-}
-
-// static
-void MetroViewerProcessHost::HandleSaveFile(
-    const base::string16& title,
-    const base::FilePath& default_path,
-    const base::string16& filter,
-    int filter_index,
-    const base::string16& default_extension,
-    const SaveFileCompletion& on_success,
-    const FileSelectionCanceled& on_failure) {
-  if (instance_) {
-    instance_->HandleSaveFileImpl(title, default_path, filter, filter_index,
-                                  default_extension, on_success, on_failure);
-  }
-}
-
-// static
-void MetroViewerProcessHost::HandleSelectFolder(
-    const base::string16& title,
-    const SelectFolderCompletion& on_success,
-    const FileSelectionCanceled& on_failure) {
-  if (instance_)
-    instance_->HandleSelectFolderImpl(title, on_success, on_failure);
-}
-
-void MetroViewerProcessHost::HandleOpenFileImpl(
-    const base::string16& title,
-    const base::FilePath& default_path,
-    const base::string16& filter,
-    const OpenFileCompletion& on_success,
-    const FileSelectionCanceled& on_failure) {
-  // Can only have one of these operations in flight.
-  DCHECK(file_open_completion_callback_.is_null());
-  DCHECK(failure_callback_.is_null());
-
-  file_open_completion_callback_ = on_success;
-  failure_callback_ = on_failure;
-
-  Send(new MetroViewerHostMsg_DisplayFileOpen(title, filter, default_path,
-                                              false));
-}
-
-void MetroViewerProcessHost::HandleOpenMultipleFilesImpl(
-    const base::string16& title,
-    const base::FilePath& default_path,
-    const base::string16& filter,
-    const OpenMultipleFilesCompletion& on_success,
-    const FileSelectionCanceled& on_failure) {
-  // Can only have one of these operations in flight.
-  DCHECK(multi_file_open_completion_callback_.is_null());
-  DCHECK(failure_callback_.is_null());
-  multi_file_open_completion_callback_ = on_success;
-  failure_callback_ = on_failure;
-
-  Send(new MetroViewerHostMsg_DisplayFileOpen(title, filter, default_path,
-                                              true));
-}
-
-void MetroViewerProcessHost::HandleSaveFileImpl(
-    const base::string16& title,
-    const base::FilePath& default_path,
-    const base::string16& filter,
-    int filter_index,
-    const base::string16& default_extension,
-    const SaveFileCompletion& on_success,
-    const FileSelectionCanceled& on_failure) {
-  MetroViewerHostMsg_SaveAsDialogParams params;
-  params.title = title;
-  params.default_extension = default_extension;
-  params.filter = filter;
-  params.filter_index = filter_index;
-  params.suggested_name = default_path;
-
-  // Can only have one of these operations in flight.
-  DCHECK(file_saveas_completion_callback_.is_null());
-  DCHECK(failure_callback_.is_null());
-  file_saveas_completion_callback_ = on_success;
-  failure_callback_ = on_failure;
-
-  Send(new MetroViewerHostMsg_DisplayFileSaveAs(params));
-}
-
-void MetroViewerProcessHost::HandleSelectFolderImpl(
-    const base::string16& title,
-    const SelectFolderCompletion& on_success,
-    const FileSelectionCanceled& on_failure) {
-  // Can only have one of these operations in flight.
-  DCHECK(select_folder_completion_callback_.is_null());
-  DCHECK(failure_callback_.is_null());
-  select_folder_completion_callback_ = on_success;
-  failure_callback_ = on_failure;
-
-  Send(new MetroViewerHostMsg_DisplaySelectFolder(title));
-}
-
-void MetroViewerProcessHost::NotifyChannelConnected() {
-  if (channel_connected_event_)
-    channel_connected_event_->Signal();
-}
-
-void MetroViewerProcessHost::OnFileSaveAsDone(bool success,
-                                              const base::FilePath& filename,
-                                              int filter_index) {
-  if (success)
-    file_saveas_completion_callback_.Run(filename, filter_index, NULL);
-  else
-    failure_callback_.Run(NULL);
-  file_saveas_completion_callback_.Reset();
-  failure_callback_.Reset();
-}
-
-
-void MetroViewerProcessHost::OnFileOpenDone(bool success,
-                                            const base::FilePath& filename) {
-  if (success)
-    file_open_completion_callback_.Run(base::FilePath(filename), 0, NULL);
-  else
-    failure_callback_.Run(NULL);
-  file_open_completion_callback_.Reset();
-  failure_callback_.Reset();
-}
-
-void MetroViewerProcessHost::OnMultiFileOpenDone(
-    bool success,
-    const std::vector<base::FilePath>& files) {
-  if (success)
-    multi_file_open_completion_callback_.Run(files, NULL);
-  else
-    failure_callback_.Run(NULL);
-  multi_file_open_completion_callback_.Reset();
-  failure_callback_.Reset();
-}
-
-void MetroViewerProcessHost::OnSelectFolderDone(
-    bool success,
-    const base::FilePath& folder) {
-  if (success)
-    select_folder_completion_callback_.Run(base::FilePath(folder), 0, NULL);
-  else
-    failure_callback_.Run(NULL);
-  select_folder_completion_callback_.Reset();
-  failure_callback_.Reset();
-}
-
-}  // namespace win8