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

content/browser/renderer_host/input/touch_selection_controller_client_aura.h

Index: content/browser/renderer_host/input/touch_selection_controller_client_aura.h
diff --git a/content/browser/renderer_host/input/touch_selection_controller_client_aura.h b/content/browser/renderer_host/input/touch_selection_controller_client_aura.h
new file mode 100644
index 0000000000000000000000000000000000000000..6b3d8d0e903c95f225adf43c654a7906971d21d8
--- /dev/null
+++ b/content/browser/renderer_host/input/touch_selection_controller_client_aura.h
@@ -0,0 +1,66 @@
+// 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 CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCH_SELECTION_CONTROLLER_CLIENT_AURA_H_
+#define CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCH_SELECTION_CONTROLLER_CLIENT_AURA_H_
+
+#include "base/timer/timer.h"
+#include "ui/touch_selection/touch_selection_controller.h"
+#include "ui/touch_selection/touch_selection_menu_runner.h"
+
+namespace content {
+class RenderWidgetHostViewAura;
+
+// An implementation of |TouchSelectionControllerClient| to be used in Aura's
+// implementation of touch selection for contents.
+class TouchSelectionControllerClientAura
+    : public ui::TouchSelectionControllerClient,
+      public ui::TouchSelectionMenuClient {
+ public:
+  explicit TouchSelectionControllerClientAura(RenderWidgetHostViewAura* rwhva);
+  ~TouchSelectionControllerClientAura() override;
+
+  void OnWindowMoved();
+  void OnTouchDown();
+  void OnTouchUp();
+  void OnSelectionScrollStarted();
+  void OnSelectionScrollCompleted();
+
+ private:
+  class EnvPreTargetHandler;
+
+  bool IsQuickMenuAllowed() const;
+  void ShowQuickMenu();
+  void UpdateQuickMenu();
+
+  // ui::TouchSelectionControllerClient:
+  bool SupportsAnimation() const override;
+  void SetNeedsAnimate() override;
+  void MoveCaret(const gfx::PointF& position) override;
+  void MoveRangeSelectionExtent(const gfx::PointF& extent) override;
+  void SelectBetweenCoordinates(const gfx::PointF& base,
+                                const gfx::PointF& extent) override;
+  void OnSelectionEvent(ui::SelectionEventType event) override;
+  scoped_ptr<ui::TouchHandleDrawable> CreateDrawable() override;
+
+  // ui::TouchSelectionMenuClient:
+  bool IsCommandIdEnabled(int command_id) const override;
+  void ExecuteCommand(int command_id, int event_flags) override;
+  void RunContextMenu() override;
+
+  // Not owned, non-null for the lifetime of this object.
+  RenderWidgetHostViewAura* rwhva_;
+
+  base::Timer quick_menu_timer_;
+  bool touch_down_;
+  bool scroll_in_progress_;
+  bool handle_drag_in_progress_;
+  scoped_ptr<EnvPreTargetHandler> env_pre_target_handler_;

[sadrul, 2015/06/30 18:33:12]

Document the handler here.

[mohsen, 2015/07/03 18:07:23]

Done.

+
+  DISALLOW_COPY_AND_ASSIGN(TouchSelectionControllerClientAura);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCH_SELECTION_CONTROLLER_CLIENT_AURA_H_