Implement TouchSelectionEditing controls for OOPIF.

content/browser/renderer_host/input/touch_selection_controller_client_child_frame.h

+// Copyright 2017 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_CHILD_FRAME_H_
+#define CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCH_SELECTION_CONTROLLER_CLIENT_CHILD_FRAME_H_
+
+#include "base/macros.h"
+#include "cc/input/selection.h"
+#include "content/common/content_export.h"
+#include "ui/touch_selection/touch_selection_controller.h"
+#include "ui/touch_selection/touch_selection_menu_runner.h"
+
+namespace content {
+class RenderWidgetHostViewChildFrame;
+class TouchSelectionControllerClientManager;
+
+// An implementation of |TouchSelectionControllerClient| to be used by
+// implementations of TouchSelectionControllerClientManager. This class serves
+// cross-process iframes, which have different renderers than the main frame,
+// and thus have their own RenderWidgetHostViewChildFrames. Since a
+// TouchSelectionControllerClient is intended to bind these views to the
+// TouchSelectionController, we need a different implementation for
+// cross-process subframes.
+class CONTENT_EXPORT TouchSelectionControllerClientChildFrame
+    : public ui::TouchSelectionControllerClient,
+      public ui::TouchSelectionMenuClient {
+ public:
+  TouchSelectionControllerClientChildFrame(
+      RenderWidgetHostViewChildFrame* rwhv,
+      TouchSelectionControllerClientManager* manager);
+  ~TouchSelectionControllerClientChildFrame() override;
+
+  void UpdateSelectionBoundsIfNeeded(
+      const cc::Selection<gfx::SelectionBound>& selection,
+      float device_scale_factor);
+
+ private:
+  // 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;
+  std::unique_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;
+
+  gfx::Point ConvertFromRoot(const gfx::PointF& point) const;
+
+  // Not owned, non-null for the lifetime of this object.
+  RenderWidgetHostViewChildFrame* rwhv_;
+  TouchSelectionControllerClientManager* manager_;
+
+  // The last selection bounds reported by the view.
+  gfx::SelectionBound selection_start_;
+  gfx::SelectionBound selection_end_;
+
+  DISALLOW_COPY_AND_ASSIGN(TouchSelectionControllerClientChildFrame);
+};
+
+}  // namespace content
+#endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCH_SELECTION_CONTROLLER_CLIENT_CHILD_FRAME_H_