Reland: Implement Aura side of unified touch text selection for contents

ui/touch_selection/touch_selection_menu_runner.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 UI_TOUCH_SELECTION_TOUCH_SELECTION_MENU_RUNNER_H_
+#define UI_TOUCH_SELECTION_TOUCH_SELECTION_MENU_RUNNER_H_
+
+#include "base/logging.h"
+#include "base/macros.h"
+#include "ui/touch_selection/ui_touch_selection_export.h"
+
+namespace aura {
+class Window;
+}
+
+namespace gfx {
+class Rect;
+class Size;
+}
+
+namespace ui {
+
+// ...
+class UI_TOUCH_SELECTION_EXPORT TouchSelectionMenuClient {
+ public:
+  virtual ~TouchSelectionMenuClient() {}
+
+  virtual bool IsCommandIdEnabled(int command_id) const = 0;
+  virtual void ExecuteCommand(int command_id, int event_flags) = 0;
+  virtual void OpenContextMenu() = 0;
+};
+
+// ...
+class UI_TOUCH_SELECTION_EXPORT TouchSelectionMenuRunner {
+ public:
+  virtual ~TouchSelectionMenuRunner();
+
+  static TouchSelectionMenuRunner* GetInstance();
+
+  virtual void RunMenu(TouchSelectionMenuClient* client,
+                       const gfx::Rect& anchor_rect,
+                       const gfx::Size& handle_image_size,
+                       aura::Window* context) = 0;
+  virtual void CloseMenu() = 0;
+  virtual bool IsRunning() const = 0;
+
+ protected:
+  TouchSelectionMenuRunner();
+
+  static void SetInstance(TouchSelectionMenuRunner* instance);
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(TouchSelectionMenuRunner);
+};
+
+}  // namespace ui
+
+#endif  // UI_TOUCH_SELECTION_TOUCH_SELECTION_MENU_RUNNER_H_