Initial cut of ash/wm/common classes for mus

mash/wm/bridge/wm_globals_mus.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 "mash/wm/bridge/wm_globals_mus.h"
+
+#include "ash/wm/common/window_resizer.h"
+#include "ash/wm/common/wm_activation_observer.h"
+#include "ash/wm/common/wm_shell_window_ids.h"
+#include "components/mus/common/util.h"
+#include "components/mus/public/cpp/window.h"
+#include "components/mus/public/cpp/window_tree_connection.h"
+#include "mash/wm/bridge/wm_root_window_controller_mus.h"
+#include "mash/wm/bridge/wm_window_mus.h"
+#include "mash/wm/public/interfaces/container.mojom.h"
+#include "mash/wm/root_window_controller.h"
+
+namespace mash {
+namespace wm {
+
+WmGlobalsMus::WmGlobalsMus(mus::WindowTreeConnection* connection)
+    : connection_(connection) {
+  connection_->AddObserver(this);
+  WmGlobals::Set(this);
+}
+
+WmGlobalsMus::~WmGlobalsMus() {
+  connection_->RemoveObserver(this);
+  WmGlobals::Set(nullptr);
+}
+
+// static
+WmGlobalsMus* WmGlobalsMus::Get() {
+  return static_cast<WmGlobalsMus*>(ash::wm::WmGlobals::Get());
+}
+
+void WmGlobalsMus::AddRootWindowController(
+    WmRootWindowControllerMus* controller) {
+  root_window_controllers_.push_back(controller);
+}
+
+void WmGlobalsMus::RemoveRootWindowController(
+    WmRootWindowControllerMus* controller) {
+  root_window_controllers_.erase(std::find(root_window_controllers_.begin(),

[James Cook, 2016/05/06 19:46:46]

optional: Maybe DCHECK that controller is in the container?

[sky, 2016/05/06 22:12:57]

Done.

+                                           root_window_controllers_.end(),
+                                           controller));
+}
+
+// static
+WmWindowMus* WmGlobalsMus::GetToplevelAncestor(mus::Window* window) {
+  while (window) {
+    if (!window->parent())
+      return nullptr;

[James Cook, 2016/05/06 19:46:46]

Does this match the function comment? Or is this handling the case where
|window| is itself a container?

[sky, 2016/05/06 22:12:57]

Good catch, updated.

+    if (IsActivationParent(window->parent()))
+      return WmWindowMus::Get(window);
+    window = window->parent();
+  }
+  return nullptr;
+}
+
+WmRootWindowControllerMus* WmGlobalsMus::GetRootWindowControllerWithDisplayId(
+    int64_t id) {
+  for (WmRootWindowControllerMus* root_window_controller :
+       root_window_controllers_) {
+    if (root_window_controller->GetDisplay().id() == id)
+      return root_window_controller;
+  }
+  NOTREACHED();
+  return nullptr;
+}
+
+ash::wm::WmWindow* WmGlobalsMus::GetFocusedWindow() {
+  return WmWindowMus::Get(connection_->GetFocusedWindow());
+}
+
+ash::wm::WmWindow* WmGlobalsMus::GetActiveWindow() {
+  return GetToplevelAncestor(connection_->GetFocusedWindow());
+}
+
+ash::wm::WmWindow* WmGlobalsMus::GetRootWindowForDisplayId(int64_t display_id) {
+  return GetRootWindowControllerWithDisplayId(display_id)->GetWindow();
+}
+
+ash::wm::WmWindow* WmGlobalsMus::GetRootWindowForNewWindows() {
+  NOTIMPLEMENTED();
+  return root_window_controllers_[0]->GetWindow();
+}
+
+std::vector<ash::wm::WmWindow*> WmGlobalsMus::GetMruWindowListIgnoreModals() {
+  NOTIMPLEMENTED();
+  return std::vector<ash::wm::WmWindow*>();
+}
+
+bool WmGlobalsMus::IsForceMaximizeOnFirstRun() {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+bool WmGlobalsMus::IsUserSessionBlocked() {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+bool WmGlobalsMus::IsScreenLocked() {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+void WmGlobalsMus::LockCursor() {
+  NOTIMPLEMENTED();
+}
+
+void WmGlobalsMus::UnlockCursor() {
+  NOTIMPLEMENTED();
+}
+
+std::vector<ash::wm::WmWindow*> WmGlobalsMus::GetAllRootWindows() {
+  std::vector<ash::wm::WmWindow*> wm_windows(root_window_controllers_.size());
+  for (size_t i = 0; i < root_window_controllers_.size(); ++i)
+    wm_windows[i] = root_window_controllers_[i]->GetWindow();
+  return wm_windows;
+}
+
+void WmGlobalsMus::RecordUserMetricsAction(
+    ash::wm::WmUserMetricsAction action) {
+  NOTIMPLEMENTED();
+}
+
+std::unique_ptr<ash::WindowResizer> WmGlobalsMus::CreateDragWindowResizer(
+    std::unique_ptr<ash::WindowResizer> next_window_resizer,
+    ash::wm::WindowState* window_state) {
+  NOTIMPLEMENTED();
+  return next_window_resizer;
+}
+
+bool WmGlobalsMus::IsOverviewModeSelecting() {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+bool WmGlobalsMus::IsOverviewModeRestoringMinimizedWindows() {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+void WmGlobalsMus::AddActivationObserver(
+    ash::wm::WmActivationObserver* observer) {
+  activation_observers_.AddObserver(observer);
+}
+
+void WmGlobalsMus::RemoveActivationObserver(
+    ash::wm::WmActivationObserver* observer) {
+  activation_observers_.RemoveObserver(observer);
+}
+
+void WmGlobalsMus::AddDisplayObserver(ash::wm::WmDisplayObserver* observer) {
+  NOTIMPLEMENTED();
+}
+
+void WmGlobalsMus::RemoveDisplayObserver(ash::wm::WmDisplayObserver* observer) {
+  NOTIMPLEMENTED();
+}
+
+void WmGlobalsMus::AddOverviewModeObserver(
+    ash::wm::WmOverviewModeObserver* observer) {
+  NOTIMPLEMENTED();
+}
+
+void WmGlobalsMus::RemoveOverviewModeObserver(
+    ash::wm::WmOverviewModeObserver* observer) {
+  NOTIMPLEMENTED();
+}
+
+// static
+bool WmGlobalsMus::IsActivationParent(mus::Window* window) {
+  return window->local_id() == ash::kShellWindowId_DefaultContainer;
+}
+
+void WmGlobalsMus::OnWindowTreeFocusChanged(mus::Window* gained_focus,
+                                            mus::Window* lost_focus) {
+  WmWindowMus* gained_active = GetToplevelAncestor(gained_focus);
+  WmWindowMus* lost_active = GetToplevelAncestor(gained_focus);
+  if (gained_active == lost_active)
+    return;
+
+  FOR_EACH_OBSERVER(ash::wm::WmActivationObserver, activation_observers_,
+                    OnWindowActivated(gained_active, lost_active));
+}
+
+}  // namespace wm
+}  // namespace mash