Moves mash/wm into ash/mus

ash/mus/user_window_controller_impl.cc

 // Copyright 2015 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/user_window_controller_impl.h"
+#include "ash/mus/user_window_controller_impl.h"
 
+#include <stdint.h>

[msw, 2016/06/02 20:28:35]

q: why is this neeeded? (trying to fix your TODO below?)

[sky, 2016/06/02 21:31:51]

Indeed. I had thought it might be necessary to fix the TODO below, but it
doesn't matter. Removed.

+
+#include "ash/mus/property_util.h"
+#include "ash/mus/root_window_controller.h"
 #include "ash/public/interfaces/container.mojom.h"
 #include "components/mus/public/cpp/property_type_converters.h"
 #include "components/mus/public/cpp/window.h"
 #include "components/mus/public/cpp/window_property.h"
 #include "components/mus/public/cpp/window_tree_client.h"
-#include "mash/wm/property_util.h"
-#include "mash/wm/root_window_controller.h"
 #include "mojo/common/common_type_converters.h"
 #include "ui/resources/grit/ui_resources.h"
 
-MUS_DECLARE_WINDOW_PROPERTY_TYPE(uint32_t);
+// TODO(sky): figure out why this generates a complie time error.

[msw, 2016/06/02 20:28:35]

Should this be fixed before landing? (will it break window properties?)

[sky, 2016/06/02 21:31:51]

It compiled fine without this. But I ended up reverting the changes to
components/mus/public/cpp/window_property and moving the MUS_DEFINE outside of
ash::mus namespace. There was some weird collision with ash::mus and mus:: in
window_property that I could not seem to get working correctly. No doubt some
weird template specialization issue.

+// MUS_DECLARE_WINDOW_PROPERTY_TYPE(uint32_t);
 
-namespace mash {
-namespace wm {
+namespace ash {
+namespace mus {
 
 // Key used for storing identifier sent to clients for windows.
 MUS_DEFINE_LOCAL_WINDOW_PROPERTY_KEY(uint32_t, kUserWindowIdKey, 0u);
 
 namespace {
 
 // Returns |window|, or an ancestor thereof, parented to |container|, or null.
-mus::Window* GetTopLevelWindow(mus::Window* window, mus::Window* container) {
+::mus::Window* GetTopLevelWindow(::mus::Window* window,
+                                 ::mus::Window* container) {
   while (window && window->parent() != container)
     window = window->parent();
   return window;
 }
 
 // Get a UserWindow struct from a mus::Window.
-ash::mojom::UserWindowPtr GetUserWindow(mus::Window* window) {
-  ash::mojom::UserWindowPtr user_window(ash::mojom::UserWindow::New());
+mojom::UserWindowPtr GetUserWindow(::mus::Window* window) {
+  mojom::UserWindowPtr user_window(mojom::UserWindow::New());
   DCHECK_NE(0u, window->GetLocalProperty(kUserWindowIdKey));
   user_window->window_id = window->GetLocalProperty(kUserWindowIdKey);
   user_window->window_title = mojo::String::From(GetWindowTitle(window));
   user_window->window_app_icon = GetWindowAppIcon(window);
   user_window->window_app_id = mojo::String::From(GetAppID(window));
   user_window->ignored_by_shelf = GetWindowIgnoredByShelf(window);
-  mus::Window* focused = window->window_tree()->GetFocusedWindow();
+  ::mus::Window* focused = window->window_tree()->GetFocusedWindow();
   focused = GetTopLevelWindow(focused, window->parent());
   user_window->window_has_focus = focused == window;
   return user_window;
 }
 
 }  // namespace
 
 // Observes property changes on user windows. UserWindowControllerImpl uses
 // this separate observer to avoid observing duplicate tree change
 // notifications.
-class WindowPropertyObserver : public mus::WindowObserver {
+class WindowPropertyObserver : public ::mus::WindowObserver {
  public:
   explicit WindowPropertyObserver(UserWindowControllerImpl* controller)
       : controller_(controller) {}
   ~WindowPropertyObserver() override {}
 
  private:
   // mus::WindowObserver:
   void OnWindowSharedPropertyChanged(
-      mus::Window* window,
+      ::mus::Window* window,
       const std::string& name,
       const std::vector<uint8_t>* old_data,
       const std::vector<uint8_t>* new_data) override {
     if (!controller_->user_window_observer())
       return;
-    if (name == mus::mojom::WindowManager::kWindowTitle_Property) {
+    if (name == ::mus::mojom::WindowManager::kWindowTitle_Property) {
       controller_->user_window_observer()->OnUserWindowTitleChanged(
           window->GetLocalProperty(kUserWindowIdKey),
           mojo::String::From(GetWindowTitle(window)));
-    } else if (name == mus::mojom::WindowManager::kWindowAppIcon_Property) {
+    } else if (name == ::mus::mojom::WindowManager::kWindowAppIcon_Property) {
       controller_->user_window_observer()->OnUserWindowAppIconChanged(
           window->GetLocalProperty(kUserWindowIdKey),
           new_data ? mojo::Array<uint8_t>::From(*new_data)
                    : mojo::Array<uint8_t>());
     }
   }
 
   UserWindowControllerImpl* controller_;
   DISALLOW_COPY_AND_ASSIGN(WindowPropertyObserver);
 };
 
 UserWindowControllerImpl::UserWindowControllerImpl()
     : root_controller_(nullptr) {}
 
 UserWindowControllerImpl::~UserWindowControllerImpl() {
   if (!root_controller_)
     return;
 
-  mus::Window* user_container = GetUserWindowContainer();
+  ::mus::Window* user_container = GetUserWindowContainer();
   if (!user_container)
     return;
 
   RemoveObservers(user_container);
 }
 
 void UserWindowControllerImpl::Initialize(
     RootWindowController* root_controller) {
   DCHECK(root_controller);
   DCHECK(!root_controller_);
   root_controller_ = root_controller;
   GetUserWindowContainer()->AddObserver(this);
   GetUserWindowContainer()->window_tree()->AddObserver(this);
   window_property_observer_.reset(new WindowPropertyObserver(this));
-  for (mus::Window* window : GetUserWindowContainer()->children()) {
+  for (::mus::Window* window : GetUserWindowContainer()->children()) {
     AssignIdIfNecessary(window);
     window->AddObserver(window_property_observer_.get());
   }
 }
 
-void UserWindowControllerImpl::AssignIdIfNecessary(mus::Window* window) {
+void UserWindowControllerImpl::AssignIdIfNecessary(::mus::Window* window) {
   if (window->GetLocalProperty(kUserWindowIdKey) == 0u)
     window->SetLocalProperty(kUserWindowIdKey, next_id_++);
 }
 
-void UserWindowControllerImpl::RemoveObservers(mus::Window* user_container) {
+void UserWindowControllerImpl::RemoveObservers(::mus::Window* user_container) {
   user_container->RemoveObserver(this);
   user_container->window_tree()->RemoveObserver(this);
   for (auto iter : user_container->children())
     iter->RemoveObserver(window_property_observer_.get());
 }
 
-mus::Window* UserWindowControllerImpl::GetUserWindowById(uint32_t id) {
-  for (mus::Window* window : GetUserWindowContainer()->children()) {
+::mus::Window* UserWindowControllerImpl::GetUserWindowById(uint32_t id) {
+  for (::mus::Window* window : GetUserWindowContainer()->children()) {
     if (window->GetLocalProperty(kUserWindowIdKey) == id)
       return window;
   }
   return nullptr;
 }
 
-mus::Window* UserWindowControllerImpl::GetUserWindowContainer() const {
+::mus::Window* UserWindowControllerImpl::GetUserWindowContainer() const {
   return root_controller_->GetWindowForContainer(
-      ash::mojom::Container::USER_PRIVATE_WINDOWS);
+      mojom::Container::USER_PRIVATE_WINDOWS);
 }
 
 void UserWindowControllerImpl::OnTreeChanging(const TreeChangeParams& params) {
   DCHECK(root_controller_);
   if (params.new_parent == GetUserWindowContainer()) {
     params.target->AddObserver(window_property_observer_.get());
     AssignIdIfNecessary(params.target);
     if (user_window_observer_)
       user_window_observer_->OnUserWindowAdded(GetUserWindow(params.target));
   } else if (params.old_parent == GetUserWindowContainer()) {
     params.target->RemoveObserver(window_property_observer_.get());
     if (user_window_observer_)
       user_window_observer_->OnUserWindowRemoved(
           params.target->GetLocalProperty(kUserWindowIdKey));
   }
 }
 
-void UserWindowControllerImpl::OnWindowDestroying(mus::Window* window) {
+void UserWindowControllerImpl::OnWindowDestroying(::mus::Window* window) {
   if (window == GetUserWindowContainer())
     RemoveObservers(window);
 }
 
 void UserWindowControllerImpl::OnWindowTreeFocusChanged(
-    mus::Window* gained_focus,
-    mus::Window* lost_focus) {
+    ::mus::Window* gained_focus,
+    ::mus::Window* lost_focus) {
   if (!user_window_observer_)
     return;
 
   // Treat focus in the user window hierarchy as focus of the top-level window.
   gained_focus = GetTopLevelWindow(gained_focus, GetUserWindowContainer());
   lost_focus = GetTopLevelWindow(lost_focus, GetUserWindowContainer());
   if (gained_focus == lost_focus)
     return;
 
   if (lost_focus) {
     user_window_observer_->OnUserWindowFocusChanged(
         lost_focus->GetLocalProperty(kUserWindowIdKey), false);
   }
   if (gained_focus) {
     user_window_observer_->OnUserWindowFocusChanged(
         gained_focus->GetLocalProperty(kUserWindowIdKey), true);
   }
 }
 
 void UserWindowControllerImpl::AddUserWindowObserver(
-    ash::mojom::UserWindowObserverPtr observer) {
+    mojom::UserWindowObserverPtr observer) {
   // TODO(msw): Support multiple observers.
   user_window_observer_ = std::move(observer);
 
-  const mus::Window::Children& windows = GetUserWindowContainer()->children();
-  mojo::Array<ash::mojom::UserWindowPtr> user_windows =
-      mojo::Array<ash::mojom::UserWindowPtr>::New(windows.size());
+  const ::mus::Window::Children& windows = GetUserWindowContainer()->children();
+  mojo::Array<mojom::UserWindowPtr> user_windows =
+      mojo::Array<mojom::UserWindowPtr>::New(windows.size());
   for (size_t i = 0; i < windows.size(); ++i)
     user_windows[i] = GetUserWindow(windows[i]);
   user_window_observer_->OnUserWindowObserverAdded(std::move(user_windows));
 }
 
 void UserWindowControllerImpl::FocusUserWindow(uint32_t window_id) {
-  mus::Window* window = GetUserWindowById(window_id);
+  ::mus::Window* window = GetUserWindowById(window_id);
   if (window)
     window->SetFocus();
 }
 
-}  // namespace wm
-}  // namespace mash
+}  // namespace mus
+}  // namespace ash