exo: Run exo in mus+ash

components/exo/wm_helper_ash.cc

+// Copyright 2016 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 "components/exo/wm_helper_ash.h"
+
+#include "ash/common/wm/maximize_mode/maximize_mode_controller.h"
+#include "ash/common/wm_shell.h"
+#include "ash/display/display_manager.h"
+#include "ash/shell.h"
+#include "base/memory/singleton.h"
+#include "ui/aura/client/focus_client.h"
+#include "ui/wm/public/activation_client.h"
+
+namespace exo {
+
+////////////////////////////////////////////////////////////////////////////////
+// WMHelperAsh, public:
+
+WMHelperAsh::WMHelperAsh() {
+  ash::WmShell::Get()->AddShellObserver(this);
+  ash::Shell::GetInstance()->activation_client()->AddObserver(this);
+  aura::client::FocusClient* focus_client =
+      aura::client::GetFocusClient(ash::Shell::GetPrimaryRootWindow());
+  focus_client->AddObserver(this);
+}
+
+WMHelperAsh::~WMHelperAsh() {
+  if (!ash::Shell::HasInstance())
+    return;
+  aura::client::FocusClient* focus_client =
+      aura::client::GetFocusClient(ash::Shell::GetPrimaryRootWindow());
+  focus_client->AddObserver(this);
+  focus_client->RemoveObserver(this);
+  ash::Shell::GetInstance()->activation_client()->RemoveObserver(this);
+  ash::WmShell::Get()->RemoveShellObserver(this);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// WMHelperAsh, private:
+
+const ash::DisplayInfo WMHelperAsh::GetDisplayInfo(int64_t display_id) const {
+  return ash::Shell::GetInstance()->display_manager()->GetDisplayInfo(
+      display_id);
+}
+
+aura::Window* WMHelperAsh::GetContainer(int container_id) {
+  return ash::Shell::GetContainer(ash::Shell::GetTargetRootWindow(),
+                                  container_id);
+}
+
+aura::Window* WMHelperAsh::GetActiveWindow() const {
+  return ash::Shell::GetInstance()->activation_client()->GetActiveWindow();
+}
+
+aura::Window* WMHelperAsh::GetFocusedWindow() const {
+  aura::client::FocusClient* focus_client =
+      aura::client::GetFocusClient(ash::Shell::GetPrimaryRootWindow());
+  return focus_client->GetFocusedWindow();
+}
+
+ui::CursorSetType WMHelperAsh::GetCursorSet() const {
+  return ash::Shell::GetInstance()->cursor_manager()->GetCursorSet();
+}
+
+void WMHelperAsh::AddPreTargetHandler(ui::EventHandler* handler) {
+  ash::Shell::GetInstance()->AddPreTargetHandler(handler);
+}
+
+void WMHelperAsh::PrependPreTargetHandler(ui::EventHandler* handler) {
+  ash::Shell::GetInstance()->PrependPreTargetHandler(handler);
+}
+
+void WMHelperAsh::RemovePreTargetHandler(ui::EventHandler* handler) {
+  ash::Shell::GetInstance()->RemovePreTargetHandler(handler);
+}
+
+void WMHelperAsh::AddPostTargetHandler(ui::EventHandler* handler) {
+  ash::Shell::GetInstance()->AddPostTargetHandler(handler);
+}
+
+void WMHelperAsh::RemovePostTargetHandler(ui::EventHandler* handler) {
+  ash::Shell::GetInstance()->RemovePostTargetHandler(handler);
+}
+
+bool WMHelperAsh::IsMaximizeModeWindowManagerEnabled() const {
+  return ash::WmShell::Get()
+      ->maximize_mode_controller()
+      ->IsMaximizeModeWindowManagerEnabled();
+}
+
+void WMHelperAsh::OnWindowActivated(
+    aura::client::ActivationChangeObserver::ActivationReason reason,
+    aura::Window* gained_active,
+    aura::Window* lost_active) {
+  NotifyWindowActivated(gained_active, lost_active);
+}
+
+void WMHelperAsh::OnWindowFocused(aura::Window* gained_focus,
+                                  aura::Window* lost_focus) {
+  NotifyWindowFocused(gained_focus, lost_focus);
+}
+
+void WMHelperAsh::OnCursorVisibilityChanged(bool is_visible) {
+  NotifyCursorVisibilityChanged(is_visible);
+}
+
+void WMHelperAsh::OnCursorSetChanged(ui::CursorSetType cursor_set) {
+  NotifyCursorSetChanged(cursor_set);
+}
+
+void WMHelperAsh::OnMaximizeModeStarted() {
+  NotifyMaximizeModeStarted();
+}
+
+void WMHelperAsh::OnMaximizeModeEnded() {
+  NotifyMaximizeModeEnded();
+}
+
+}  // namespace exo