Track TextInputState from multiple RenderWidgets in TextInputManager (Mac)

content/browser/renderer_host/render_widget_host_view_mac.h

 // Copyright (c) 2012 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_RENDER_WIDGET_HOST_VIEW_MAC_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_
 
 #import <Cocoa/Cocoa.h>
 #include <IOSurface/IOSurface.h>
 #include <stddef.h>
 #include <stdint.h>
 
 #include <list>
 #include <map>
 #include <memory>
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/mac/scoped_nsobject.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "cc/surfaces/surface_id.h"
 #include "content/browser/renderer_host/browser_compositor_view_mac.h"
 #include "content/browser/renderer_host/input/mouse_wheel_rails_filter_mac.h"
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
+#include "content/browser/renderer_host/text_input_manager.h"
 #include "content/common/content_export.h"
 #include "content/common/cursors/webcursor.h"
 #include "content/common/edit_command.h"
 #include "ipc/ipc_sender.h"
 #include "third_party/WebKit/public/web/WebCompositionUnderline.h"
 #include "ui/accelerated_widget_mac/accelerated_widget_mac.h"
 #include "ui/accelerated_widget_mac/display_link_mac.h"
 #import "ui/base/cocoa/command_dispatcher.h"
 #include "ui/base/cocoa/remote_layer_api.h"
 #import "ui/base/cocoa/tool_tip_base_view.h"
@@ skipping 179 matching lines @@
 //  Comment excerpted from render_widget_host.h:
 //
 //    "The lifetime of the RenderWidgetHost* is tied to the render process.
 //     If the render process dies, the RenderWidgetHost* goes away and all
 //     references to it must become NULL."
 //
 // RenderWidgetHostView class hierarchy described in render_widget_host_view.h.
 class CONTENT_EXPORT RenderWidgetHostViewMac
     : public RenderWidgetHostViewBase,
       public BrowserCompositorMacClient,
+      public TextInputManager::Observer,
       public ui::AcceleratedWidgetMacNSView,
       public IPC::Sender,
       public display::DisplayObserver {
  public:
   // The view will associate itself with the given widget. The native view must
   // be hooked up immediately to the view hierarchy, or else when it is
   // deleted it will delete this out from under the caller.
   //
   // When |is_guest_view_hack| is true, this view isn't really the view for
   // the |widget|, a RenderWidgetHostViewGuest is.
@@ skipping 37 matching lines @@
   void StopSpeaking() override;
   void SetBackgroundColor(SkColor color) override;
 
   // Implementation of RenderWidgetHostViewBase.
   void InitAsPopup(RenderWidgetHostView* parent_host_view,
                    const gfx::Rect& pos) override;
   void InitAsFullscreen(RenderWidgetHostView* reference_host_view) override;
   void Focus() override;
   void UpdateCursor(const WebCursor& cursor) override;
   void SetIsLoading(bool is_loading) override;
-  void TextInputStateChanged(const TextInputState& params) override;
   void ImeCancelComposition() override;
   void ImeCompositionRangeChanged(
       const gfx::Range& range,
       const std::vector<gfx::Rect>& character_bounds) override;
   void RenderProcessGone(base::TerminationStatus status,
                          int error_code) override;
   void Destroy() override;
   void SetTooltipText(const base::string16& tooltip_text) override;
   void SelectionChanged(const base::string16& text,
                         size_t offset,
@@ skipping 45 matching lines @@
   void ProcessMouseWheelEvent(const blink::WebMouseWheelEvent& event,
                               const ui::LatencyInfo& latency) override;
   void ProcessTouchEvent(const blink::WebTouchEvent& event,
                          const ui::LatencyInfo& latency) override;
   void ProcessGestureEvent(const blink::WebGestureEvent& event,
                            const ui::LatencyInfo& latency) override;
   void TransformPointToLocalCoordSpace(const gfx::Point& point,
                                        const cc::SurfaceId& original_surface,
                                        gfx::Point* transformed_point) override;
 
+  // TextInputManager::Observer implementation.
+  void OnUpdateTextInputStateCalled(TextInputManager* text_input_manager,
+                                    RenderWidgetHostViewBase* updated_view,
+                                    bool did_update_state) override;
   // IPC::Sender implementation.
   bool Send(IPC::Message* message) override;
 
   // display::DisplayObserver implementation.
   void OnDisplayAdded(const display::Display& new_display) override;
   void OnDisplayRemoved(const display::Display& old_display) override;
   void OnDisplayMetricsChanged(const display::Display& display,
                                uint32_t metrics) override;
 
   // Forwards the mouse event to the renderer.
@@ skipping 37 matching lines @@
 
   WebContents* GetWebContents();
 
   // These member variables should be private, but the associated ObjC class
   // needs access to them and can't be made a friend.
 
   // The associated Model.  Can be NULL if Destroy() is called when
   // someone (other than superview) has retained |cocoa_view_|.
   RenderWidgetHostImpl* render_widget_host_;
 
-  // Current text input type.
-  ui::TextInputType text_input_type_;
-  bool can_compose_inline_;
-
   // The background CoreAnimation layer which is hosted by |cocoa_view_|.
   base::scoped_nsobject<CALayer> background_layer_;
 
   // Delegated frame management and compositor interface.
   std::unique_ptr<BrowserCompositorMac> browser_compositor_;
 
   // Set when the currently-displayed frame is the minimum scale. Used to
   // determine if pinch gestures need to be thresholded.
   bool page_at_minimum_scale_;
 
@@ skipping 37 matching lines @@
 
   // AcceleratedWidgetMacNSView implementation.
   NSView* AcceleratedWidgetGetNSView() const override;
   void AcceleratedWidgetGetVSyncParameters(
       base::TimeTicks* timebase, base::TimeDelta* interval) const override;
   void AcceleratedWidgetSwapCompleted() override;
 
   // Exposed for testing.
   cc::SurfaceId SurfaceIdForTesting() const override;
 
+  // Helper method to obtain ui::TextInputType for the active widget from the
+  // TextInputManager.
+  ui::TextInputType GetTextInputType();
+
  private:
   friend class RenderWidgetHostViewMacTest;
 
   // Returns whether this render view is a popup (autocomplete window).
   bool IsPopup() const;
 
   // Shuts down the render_widget_host_.  This is a separate function so we can
   // invoke it from the message loop.
   void ShutdownHost();
 
@@ skipping 59 matching lines @@
 
   // Factory used to safely scope delayed calls to ShutdownHost().
   base::WeakPtrFactory<RenderWidgetHostViewMac> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewMac);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_