The first step for enabling off-the-spot IME on Pepper on ChromeOS/Linux.

content/renderer/render_view.h

 // Copyright (c) 2011 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_RENDERER_RENDER_VIEW_H_
 #define CONTENT_RENDERER_RENDER_VIEW_H_
 #pragma once
 
 #include <deque>
 #include <map>
@@ skipping 287 matching lines @@
       webkit::ppapi::PluginModule* pepper_module);
 
   // Creates a fullscreen container for a pepper plugin instance.
   RenderWidgetFullscreenPepper* CreatePepperFullscreenContainer(
       webkit::ppapi::PluginInstance* plugin);
 
   // Create a new plugin without checking the content settings.
   WebKit::WebPlugin* CreatePluginNoCheck(WebKit::WebFrame* frame,
                                          const WebKit::WebPluginParams& params);
 
+  // Informs the render view that the given plugin has gained or lost focus.
+  void PpapiPluginFocusChanged(bool focused);
+
 #if defined(OS_MACOSX)
   // Informs the render view that the given plugin has gained or lost focus.
   void PluginFocusChanged(bool focused, int plugin_id);
 
   // Starts plugin IME.
   void StartPluginIme();
 
   // Helper routines for accelerated plugin support. Used by the
   // WebPluginDelegateProxy, which has a pointer to the RenderView.
   gfx::PluginWindowHandle AllocateFakePluginWindowHandle(bool opaque,
@@ skipping 284 matching lines @@
       TransportDIB** dib,
       gfx::Rect* location,
       gfx::Rect* clip);
   virtual gfx::Point GetScrollOffset();
   virtual void DidHandleKeyEvent();
   virtual void DidHandleMouseEvent(const WebKit::WebMouseEvent& event);
   virtual void OnSetFocus(bool enable);
   virtual void OnWasHidden();
   virtual void OnWasRestored(bool needs_repainting);
   virtual bool SupportsAsynchronousSwapBuffers() OVERRIDE;
+  virtual void OnImeSetComposition(
+      const string16& text,
+      const std::vector<WebKit::WebCompositionUnderline>& underlines,
+      int selection_start,
+      int selection_end) OVERRIDE;
+  virtual void OnImeConfirmComposition(const string16& text) OVERRIDE;
+  virtual void GetTextInputType(WebKit::WebTextInputType* type,
+                                WebKit::WebRect* caret_bounds) OVERRIDE;
 
  private:
   // For unit tests.
   friend class ExternalPopupMenuTest;
   friend class PepperDeviceTest;
   friend class RenderViewTest;
 
   FRIEND_TEST_ALL_PREFIXES(ExternalPopupMenuRemoveTest, RemoveOnChange);
   FRIEND_TEST_ALL_PREFIXES(ExternalPopupMenuTest, NormalCase);
   FRIEND_TEST_ALL_PREFIXES(ExternalPopupMenuTest, ShowPopupThenNavigate);
@@ skipping 421 matching lines @@
   // to install itself when user clicks on the info bar.
   base::WeakPtr<webkit::npapi::WebPluginDelegate> first_default_plugin_;
 
   PepperPluginDelegateImpl pepper_delegate_;
 
   // All the currently active plugin delegates for this RenderView; kept so that
   // we can enumerate them to send updates about things like window location
   // or tab focus and visibily. These are non-owning references.
   std::set<WebPluginDelegateProxy*> plugin_delegates_;
 
+  // Whether or not the focus is on a PPAPI plugin
+  bool is_ppapi_plugin_focused_;

[brettw, 2011/05/26 02:57:26]

Can this state be tracked on the PepperPluginDelegateImpl? RenderView can call
into that to query state as needed. But it's nice to keep RenderView as small as
possible and keep the Pepper stuff in one spot.

[kinaba, 2011/05/30 03:07:11]

Done.
(The variable is moved to PepperPluginDelegateImpl, but I still kept
the notification function PpapiPluginFocusChanged for invoking
UpdateInputMethod() at that timing.)

+
   // Helper objects ------------------------------------------------------------
 
   ScopedRunnableMethodFactory<RenderView> accessibility_method_factory_;
 
   RendererWebCookieJarImpl cookie_jar_;
 
   // The next group of objects all implement RenderViewObserver, so are deleted
   // along with the RenderView automatically.  This is why we just store weak
   // references.
 
@@ skipping 86 matching lines @@
   // bunch of stuff, you should probably create a helper class and put your
   // data and methods on that to avoid bloating RenderView more.  You can use
   // the Observer interface to filter IPC messages and receive frame change
   // notifications.
   // ---------------------------------------------------------------------------
 
   DISALLOW_COPY_AND_ASSIGN(RenderView);
 };
 
 #endif  // CONTENT_RENDERER_RENDER_VIEW_H_