Redesigns the text input focus handling.

content/public/browser/render_widget_host_view.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_PUBLIC_BROWSER_RENDER_WIDGET_HOST_VIEW_H_
 #define CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_VIEW_H_
 
 #include "base/basictypes.h"
 #include "base/strings/string16.h"
 #include "content/common/content_export.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkRegion.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "ui/gfx/native_widget_types.h"
 
 #if defined(TOOLKIT_GTK)
 #include <gdk/gdk.h>
 #endif
 
 class GURL;
 
 namespace gfx {
 class Rect;
 class Size;
 }
 
+namespace ui {
+class TextInputClient;
+}
+
 namespace content {
 
 class BrowserAccessibilityManager;
 class RenderWidgetHost;
 
 // RenderWidgetHostView is an interface implemented by an object that acts as
 // the "View" portion of a RenderWidgetHost. The RenderWidgetHost and its
 // associated RenderProcessHost own the "Model" in this case which is the
 // child renderer process. The View is responsible for receiving events from
 // the surrounding environment and passing them to the RenderWidgetHost, and
@@ skipping 36 matching lines @@
   // Tells the View to size and move itself to the specified size and point in
   // screen space.
   virtual void SetBounds(const gfx::Rect& rect) = 0;
 
   // Retrieves the native view used to contain plugins and identify the
   // renderer in IPC messages.
   virtual gfx::NativeView GetNativeView() const = 0;
   virtual gfx::NativeViewId GetNativeViewId() const = 0;
   virtual gfx::NativeViewAccessible GetNativeViewAccessible() = 0;
 
+  // Returns a ui::TextInputClient to support text input or NULL if this RWHV
+  // doesn't support text input.

[msw, 2014/04/18 19:57:57]

nit: should this note that certain platforms are not expected to return a
ui::TextInputClient, even if they support text input, like mac and android?

[Yuki, 2014/04/22 09:09:02]

Added a note.

+  virtual ui::TextInputClient* GetTextInputClient() = 0;
+
   // Set focus to the associated View component.
   virtual void Focus() = 0;
   // Returns true if the View currently has the focus.
   virtual bool HasFocus() const = 0;
   // Returns true is the current display surface is available.
   virtual bool IsSurfaceAvailableForCopy() const = 0;
 
   // Shows/hides the view.  These must always be called together in pairs.
   // It is not legal to call Hide() multiple times in a row.
   virtual void Show() = 0;
@@ skipping 63 matching lines @@
   // Gets the event for the last mouse down.
   virtual GdkEventButton* GetLastMouseDown() = 0;
   // Builds a submenu containing all the gtk input method commands.
   virtual gfx::NativeView BuildInputMethodsGtkMenu() = 0;
 #endif  // defined(TOOLKIT_GTK)
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_VIEW_H_