Eliminate WindowTreeConnection

components/mus/public/cpp/window_tree_connection.h

-// Copyright 2014 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_PUBLIC_CPP_WINDOW_TREE_CONNECTION_H_
-#define COMPONENTS_MUS_PUBLIC_CPP_WINDOW_TREE_CONNECTION_H_
-
-#include <stdint.h>
-
-#include <map>
-#include <string>
-#include <vector>
-
-#include "components/mus/common/types.h"
-#include "components/mus/public/interfaces/input_event_constants.mojom.h"
-#include "components/mus/public/interfaces/window_tree.mojom.h"
-#include "mojo/public/cpp/bindings/interface_request.h"
-
-namespace gfx {
-class Point;
-}
-
-namespace shell {
-class Connector;
-}
-
-namespace mus {
-
-class Window;
-class WindowManagerDelegate;
-class WindowTreeConnectionObserver;
-class WindowTreeDelegate;
-
-// Encapsulates a connection to a window tree. A unique connection is made
-// every time an app is embedded.
-class WindowTreeConnection {
- public:
-  enum class CreateType {
-    // Indicates Create() should wait for OnEmbed(). If true, the
-    // WindowTreeConnection returned from Create() will have its root, otherwise
-    // the WindowTreeConnection will get the root at a later time.
-    WAIT_FOR_EMBED,
-    DONT_WAIT_FOR_EMBED
-  };
-
-  virtual ~WindowTreeConnection() {}
-
-  // Creates a WindowTreeConnection with no roots. Use this to establish a
-  // connection directly to mus and create top level windows.
-  static WindowTreeConnection* Create(WindowTreeDelegate* delegate,
-                                      shell::Connector* connector);
-
-  // Creates a WindowTreeConnection to service the specified request for
-  // a WindowTreeClient. Use this to be embedded in another app.
-  static WindowTreeConnection* Create(
-      WindowTreeDelegate* delegate,
-      mojo::InterfaceRequest<mojom::WindowTreeClient> request,
-      CreateType create_type);
-
-  // Create a WindowTreeConnection that is going to serve as the WindowManager.
-  static WindowTreeConnection* CreateForWindowManager(
-      WindowTreeDelegate* delegate,
-      mojo::InterfaceRequest<mojom::WindowTreeClient> request,
-      CreateType create_type,
-      WindowManagerDelegate* window_manager_delegate);
-
-  // Sets whether this is deleted when there are no roots. The default is to
-  // delete when there are no roots.
-  virtual void SetDeleteOnNoRoots(bool value) = 0;
-
-  // Returns the root of this connection.
-  virtual const std::set<Window*>& GetRoots() = 0;
-
-  // Returns the Window with input capture; null if no window has requested
-  // input capture, or if another app has capture.
-  virtual Window* GetCaptureWindow() = 0;
-
-  // Returns the focused window; null if focus is not yet known or another app
-  // is focused.
-  virtual Window* GetFocusedWindow() = 0;
-
-  // Sets focus to null. This does nothing if focus is currently null.
-  virtual void ClearFocus() = 0;
-
-  // Returns the current location of the mouse on screen. Note: this method may
-  // race the asynchronous initialization; but in that case we return (0, 0).
-  virtual gfx::Point GetCursorScreenPoint() = 0;
-
-  // See description in window_tree.mojom. When an existing event observer is
-  // updated or cleared then any future events from the server for that observer
-  // will be ignored.
-  virtual void SetEventObserver(mojom::EventMatcherPtr matcher) = 0;
-
-  // Creates and returns a new Window (which is owned by the window server).
-  // Windows are initially hidden, use SetVisible(true) to show.
-  Window* NewWindow() { return NewWindow(nullptr); }
-  virtual Window* NewWindow(
-      const std::map<std::string, std::vector<uint8_t>>* properties) = 0;
-  virtual Window* NewTopLevelWindow(
-      const std::map<std::string, std::vector<uint8_t>>* properties) = 0;
-
-  virtual void AddObserver(WindowTreeConnectionObserver* observer) = 0;
-  virtual void RemoveObserver(WindowTreeConnectionObserver* observer) = 0;
-};
-
-}  // namespace mus
-
-#endif  // COMPONENTS_MUS_PUBLIC_CPP_WINDOW_TREE_CONNECTION_H_