wip: Aura-specific implementation of unified touch selection: touch_selection

ui/touch_selection/touch_selection_controller_aura.h

+// 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.
+
+#ifndef UI_TOUCH_SELECTION_TOUCH_SELECTION_CONTROLLER_AURA_H_
+#define UI_TOUCH_SELECTION_TOUCH_SELECTION_CONTROLLER_AURA_H_
+
+#include "base/timer/timer.h"
+#include "ui/events/event_handler.h"
+#include "ui/events/event_target.h"
+#include "ui/touch_selection/touch_selection_controller_impl.h"
+
+namespace aura {
+class Window;
+}
+
+namespace ui {
+class MotionEventAura;
+class TouchEvent;
+class TouchSelectionControllerAuraTestApi;
+
+// Aura implementation of |TouchSelectionController|.
+class UI_TOUCH_SELECTION_EXPORT TouchSelectionControllerAura
+    : public TouchSelectionControllerImpl,
+      public EventHandler {
+ public:
+  TouchSelectionControllerAura(
+      TouchSelectionControllerClient* client,
+      base::TimeDelta tap_timeout,
+      float tap_slop,
+      bool show_on_tap_for_empty_editable);
+
+  ~TouchSelectionControllerAura() override;
+
+  // TouchSelectionController:
+  bool OnSelectionBoundsUpdated(const SelectionBound& start,
+                                const SelectionBound& end) override;
+  bool WillHandleTouchEvent(const MotionEvent& event) override;
+  void OnTapEvent() override;
+  void OnLongPressEvent() override;
+  void AllowShowingFromCurrentSelection() override;
+  void HideAndDisallowShowingAutomatically() override;
+  void SetTemporarilyHidden(bool hidden) override;
+  void OnSelectionEditable(bool editable) override;
+  void OnSelectionEmpty(bool empty) override;
+  bool Animate(base::TimeTicks animate_time) override;
+  void OnNativeViewMoved() override;
+  void OnOverscrollStarted() override;
+  void OnOverscrollCompleted() override;
+  void OnFlingCompleted() override;
+
+ private:
+  friend class TouchSelectionControllerAuraTestApi;
+  class EnvPreTargetHandler;
+
+  // TouchSelectionControllerImpl:
+  void ActivateInsertion();
+  void DeactivateInsertion();
+  void ActivateSelection();
+  void DeactivateSelection();
+
+  // EventHandler:
+  void OnTouchEvent(TouchEvent* event) override;
+  void OnGestureEvent(GestureEvent* event) override;
+
+  scoped_ptr<MotionEventAura> motion_event_;
+  scoped_ptr<EnvPreTargetHandler> env_pre_target_handler_;
+
+  TouchSelectionControllerAuraTestApi* test_api_;
+
+  DISALLOW_COPY_AND_ASSIGN(TouchSelectionControllerAura);
+};
+
+}  // namespace ui
+
+#endif  // UI_TOUCH_SELECTION_TOUCH_SELECTION_CONTROLLER_AURA_H_