Move mus to //services/ui

components/mus/ws/window_manager_state.h

-// 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.
-
-#ifndef COMPONENTS_MUS_WS_WINDOW_MANAGER_STATE_H_
-#define COMPONENTS_MUS_WS_WINDOW_MANAGER_STATE_H_
-
-#include <stdint.h>
-
-#include <memory>
-
-#include "base/memory/weak_ptr.h"
-#include "base/timer/timer.h"
-#include "components/mus/public/interfaces/display.mojom.h"
-#include "components/mus/ws/event_dispatcher.h"
-#include "components/mus/ws/event_dispatcher_delegate.h"
-#include "components/mus/ws/user_id.h"
-#include "components/mus/ws/window_server.h"
-
-namespace mus {
-namespace ws {
-
-class DisplayManager;
-class WindowTree;
-
-namespace test {
-class WindowManagerStateTestApi;
-}
-
-// Manages state specific to a WindowManager that is shared across displays.
-// WindowManagerState is owned by the WindowTree the window manager is
-// associated with.
-class WindowManagerState : public EventDispatcherDelegate {
- public:
-  explicit WindowManagerState(WindowTree* window_tree);
-  ~WindowManagerState() override;
-
-  const UserId& user_id() const;
-
-  WindowTree* window_tree() { return window_tree_; }
-  const WindowTree* window_tree() const { return window_tree_; }
-
-  void OnWillDestroyTree(WindowTree* tree);
-
-  void SetFrameDecorationValues(mojom::FrameDecorationValuesPtr values);
-  const mojom::FrameDecorationValues& frame_decoration_values() const {
-    return *frame_decoration_values_;
-  }
-  bool got_frame_decoration_values() const {
-    return got_frame_decoration_values_;
-  }
-
-  bool SetCapture(ServerWindow* window, ClientSpecificId client_id);
-  ServerWindow* capture_window() { return event_dispatcher_.capture_window(); }
-  const ServerWindow* capture_window() const {
-    return event_dispatcher_.capture_window();
-  }
-
-  void ReleaseCaptureBlockedByModalWindow(const ServerWindow* modal_window);
-  void ReleaseCaptureBlockedByAnyModalWindow();
-
-  void AddSystemModalWindow(ServerWindow* window);
-
-  // TODO(sky): EventDispatcher is really an implementation detail and should
-  // not be exposed.
-  EventDispatcher* event_dispatcher() { return &event_dispatcher_; }
-
-  // Returns true if this is the WindowManager of the active user.
-  bool IsActive() const;
-
-  void Activate(const gfx::Point& mouse_location_on_screen);
-  void Deactivate();
-
-  // Processes an event from PlatformDisplay.
-  void ProcessEvent(const ui::Event& event);
-
-  // Called when the ack from an event dispatched to WindowTree |tree| is
-  // received.
-  // TODO(sky): make this private and use a callback.
-  void OnEventAck(mojom::WindowTree* tree, mojom::EventResult result);
-
- private:
-  class ProcessedEventTarget;
-  friend class Display;
-  friend class test::WindowManagerStateTestApi;
-
-  // There are two types of events that may be queued, both occur only when
-  // waiting for an ack from a client.
-  // . We get an event from the PlatformDisplay. This results in |event| being
-  //   set, but |processed_target| is null.
-  // . We get an event from the EventDispatcher. In this case both |event| and
-  //   |processed_target| are valid.
-  // The second case happens if EventDispatcher generates more than one event
-  // at a time.
-  struct QueuedEvent {
-    QueuedEvent();
-    ~QueuedEvent();
-
-    std::unique_ptr<ui::Event> event;
-    std::unique_ptr<ProcessedEventTarget> processed_target;
-  };
-
-  const WindowServer* window_server() const;
-  WindowServer* window_server();
-
-  DisplayManager* display_manager();
-  const DisplayManager* display_manager() const;
-
-  // Sets the visibility of all window manager roots windows to |value|.
-  void SetAllRootWindowsVisible(bool value);
-
-  // Returns the ServerWindow that is the root of the WindowManager for
-  // |window|. |window| corresponds to the root of a Display.
-  ServerWindow* GetWindowManagerRoot(ServerWindow* window);
-
-  void OnEventAckTimeout(ClientSpecificId client_id);
-
-  // Schedules an event to be processed later.
-  void QueueEvent(const ui::Event& event,
-                  std::unique_ptr<ProcessedEventTarget> processed_event_target);
-
-  // Processes the next valid event in |event_queue_|. If the event has already
-  // been processed it is dispatched, otherwise the event is passed to the
-  // EventDispatcher for processing.
-  void ProcessNextEventFromQueue();
-
-  // Dispatches the event to the appropriate client and starts the ack timer.
-  void DispatchInputEventToWindowImpl(ServerWindow* target,
-                                      ClientSpecificId client_id,
-                                      const ui::Event& event,
-                                      base::WeakPtr<Accelerator> accelerator);
-
-  // Registers accelerators used internally for debugging.
-  void AddDebugAccelerators();
-
-  // Returns true if the accelerator was handled.
-  bool HandleDebugAccelerator(uint32_t accelerator_id);
-
-  // EventDispatcherDelegate:
-  void OnAccelerator(uint32_t accelerator_id, const ui::Event& event) override;
-  void SetFocusedWindowFromEventDispatcher(ServerWindow* window) override;
-  ServerWindow* GetFocusedWindowForEventDispatcher() override;
-  void SetNativeCapture(ServerWindow* window) override;
-  void ReleaseNativeCapture() override;
-  void OnServerWindowCaptureLost(ServerWindow* window) override;
-  void OnMouseCursorLocationChanged(const gfx::Point& point) override;
-  void DispatchInputEventToWindow(ServerWindow* target,
-                                  ClientSpecificId client_id,
-                                  const ui::Event& event,
-                                  Accelerator* accelerator) override;
-  ClientSpecificId GetEventTargetClientId(const ServerWindow* window,
-                                          bool in_nonclient_area) override;
-  ServerWindow* GetRootWindowContaining(const gfx::Point& location) override;
-  void OnEventTargetNotFound(const ui::Event& event) override;
-
-  // The single WindowTree this WindowManagerState is associated with.
-  // |window_tree_| owns this.
-  WindowTree* window_tree_;
-
-  // Set to true the first time SetFrameDecorationValues() is called.
-  bool got_frame_decoration_values_ = false;
-  mojom::FrameDecorationValuesPtr frame_decoration_values_;
-
-  mojom::WindowTree* tree_awaiting_input_ack_ = nullptr;
-  std::unique_ptr<ui::Event> event_awaiting_input_ack_;
-  base::WeakPtr<Accelerator> post_target_accelerator_;
-  std::queue<std::unique_ptr<QueuedEvent>> event_queue_;
-  base::OneShotTimer event_ack_timer_;
-
-  EventDispatcher event_dispatcher_;
-
-  // PlatformDisplay that currently has capture.
-  PlatformDisplay* platform_display_with_capture_ = nullptr;
-
-  base::WeakPtrFactory<WindowManagerState> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(WindowManagerState);
-};
-
-}  // namespace ws
-}  // namespace mus
-
-#endif  // COMPONENTS_MUS_WS_WINDOW_MANAGER_STATE_H_