Implement TouchSelectionEditing controls for OOPIF.

content/browser/frame_host/render_widget_host_view_child_frame.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 CONTENT_BROWSER_FRAME_HOST_RENDER_WIDGET_HOST_VIEW_CHILD_FRAME_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_WIDGET_HOST_VIEW_CHILD_FRAME_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <deque>
 #include <memory>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "build/build_config.h"
 #include "cc/resources/returned_resource.h"
 #include "cc/scheduler/begin_frame_source.h"
 #include "cc/surfaces/compositor_frame_sink_support_client.h"
 #include "cc/surfaces/surface_info.h"
 #include "cc/surfaces/surface_sequence.h"
 #include "content/browser/compositor/image_transport_factory.h"
 #include "content/browser/renderer_host/event_with_latency_info.h"
+#include "content/browser/renderer_host/input/touch_selection_controller_client_manager.h"
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
 #include "content/common/content_export.h"
 #include "content/common/input/input_event_ack_state.h"
 #include "content/public/browser/readback_types.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace cc {
 class CompositorFrameSinkSupport;
 }
 
 namespace content {
 class CrossProcessFrameConnector;
 class RenderWidgetHost;
 class RenderWidgetHostImpl;
 class RenderWidgetHostViewChildFrameTest;
 class RenderWidgetHostViewGuestSurfaceTest;
+class TouchSelectionControllerClientChildFrame;
 
 // RenderWidgetHostViewChildFrame implements the view for a RenderWidgetHost
 // associated with content being rendered in a separate process from
 // content that is embedding it. This is not a platform-specific class; rather,
 // the embedding renderer process implements the platform containing the
 // widget, and the top-level frame's RenderWidgetHostView will ultimately
 // manage all native widget interaction.
 //
 // See comments in render_widget_host_view.h about this class and its members.
 class CONTENT_EXPORT RenderWidgetHostViewChildFrame
     : public RenderWidgetHostViewBase,
+      public TouchSelectionControllerClientManager::Observer,
       public NON_EXPORTED_BASE(cc::CompositorFrameSinkSupportClient) {
  public:
   static RenderWidgetHostViewChildFrame* Create(RenderWidgetHost* widget);
   ~RenderWidgetHostViewChildFrame() override;
 
   void SetCrossProcessFrameConnector(
       CrossProcessFrameConnector* frame_connector);
 
   // This functions registers single-use callbacks that want to be notified when
   // the next frame is swapped. The callback is triggered by
   // ProcessCompositorFrame, which is the appropriate time to request pixel
   // readback for the frame that is about to be drawn. Once called, the callback
   // pointer is released.
   // TODO(wjmaclean): We should consider making this available in other view
   // types, such as RenderWidgetHostViewAura.
   void RegisterFrameSwappedCallback(std::unique_ptr<base::Closure> callback);
 
+  // TouchSelectionControllerClientManager::Observer implementation.
+  void OnManagerWillDestroy(
+      TouchSelectionControllerClientManager* manager) override;
+
   // RenderWidgetHostView implementation.
   void InitAsChild(gfx::NativeView parent_view) override;
   RenderWidgetHost* GetRenderWidgetHost() const override;
   void SetSize(const gfx::Size& size) override;
   void SetBounds(const gfx::Rect& rect) override;
   void Focus() override;
   bool HasFocus() const override;
   bool IsSurfaceAvailableForCopy() const override;
   void CopyFromSurface(const gfx::Rect& src_rect,
                        const gfx::Size& output_size,
@@ skipping 101 matching lines @@
   // to the frame tree.
   RenderWidgetHostViewBase* GetParentView();
 
   void RegisterFrameSinkId();
   void UnregisterFrameSinkId();
 
   void UpdateViewportIntersection(const gfx::Rect& viewport_intersection);
 
   bool has_frame() { return has_frame_; }
 
+  ui::TextInputType GetTextInputType() const;
+  bool GetSelectionRange(gfx::Range* range) const;
+  gfx::Point GetViewOriginInRoot() const;

[kenrb, 2017/05/23 16:19:02]

This one warrants a comment explaining what it returns (and also disambiguating
'origin', which is an overloaded term in a web browser).

[wjmaclean, 2017/05/23 17:00:41]

Done.

+
  protected:
   friend class RenderWidgetHostView;
   friend class RenderWidgetHostViewChildFrameTest;
   friend class RenderWidgetHostViewGuestSurfaceTest;
   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewChildFrameTest,
                            ForwardsBeginFrameAcks);
 
   explicit RenderWidgetHostViewChildFrame(RenderWidgetHost* widget);
   void Init();
 
@@ skipping 56 matching lines @@
   // The surface client ID of the parent RenderWidgetHostView.  0 if none.
   cc::FrameSinkId parent_frame_sink_id_;
 
   bool has_frame_ = false;
   cc::mojom::MojoCompositorFrameSinkClient* renderer_compositor_frame_sink_ =
       nullptr;
 
   // The background color of the widget.
   SkColor background_color_;
 
+  std::unique_ptr<TouchSelectionControllerClientChildFrame>
+      selection_controller_client_;
+
   base::WeakPtrFactory<RenderWidgetHostViewChildFrame> weak_factory_;
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewChildFrame);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_WIDGET_HOST_VIEW_CHILD_FRAME_H_