Implement IME for Mac plugins using the Cocoa event model on 10.6

chrome/browser/renderer_host/render_widget_host_view_mac.h

 // Copyright (c) 2006-2008 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 CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_
 #pragma once
 
 #import <Cocoa/Cocoa.h>
 #import <QuartzCore/CALayer.h>
@@ skipping 106 matching lines @@
   std::vector<WebKit::WebCompositionUnderline> underlines_;
 
   // Indicates if doCommandBySelector method receives any edit command when
   // handling a key down event.
   BOOL hasEditCommands_;
 
   // Contains edit commands received by the -doCommandBySelector: method when
   // handling a key down event, not including inserting commands, eg. insertTab,
   // etc.
   EditCommands editCommands_;
+
+  // The plugin for which IME is currently enabled (-1 if not enabled).
+  int pluginImeIdentifier_;
 }
 
 @property(assign, nonatomic) NSRect caretRect;
 
 - (void)setCanBeKeyView:(BOOL)can;
 - (void)setTakesFocusOnlyOnMouseDown:(BOOL)b;
 - (void)setCloseOnDeactivate:(BOOL)b;
 - (void)setToolTipAtMousePoint:(NSString *)string;
 // Set frame, then notify the RenderWidgetHost that the frame has been changed,
 // but do it in a separate task, using |performSelector:withObject:afterDelay:|.
 // This stops the flickering issue in http://crbug.com/31970
 - (void)setFrameWithDeferredUpdate:(NSRect)frame;
 // Notify the RenderWidgetHost that the frame was updated so it can resize
 // its contents.
 - (void)renderWidgetHostWasResized;
 // Cancel ongoing composition (abandon the marked text).
 - (void)cancelComposition;
 // Set the new accessibility tree.
 - (void)setAccessibilityTreeRoot:(BrowserAccessibility*) treeRoot;
 // Confirm ongoing composition.
 - (void)confirmComposition;
+// Enables or disables plugin IME for the given plugin.
+- (void)setPluginImeEnabled:(BOOL)enabled forPlugin:(int)pluginId;
+// Evaluates the event in the context of plugin IME, if plugin IME is enabled.
+// Returns YES if the event was handled.
+- (BOOL)postProcessEventForPluginIme:(NSEvent*)event;
 
 @end
 
 ///////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewMac
 //
 //  An object representing the "View" of a rendered web page. This object is
 //  responsible for displaying the content of the web page, and integrating with
 //  the Cocoa view system. It is the implementation of the RenderWidgetHostView
 //  that the cross-platform RenderWidgetHost object uses
@@ skipping 59 matching lines @@
   virtual gfx::Rect GetRootWindowRect();
   virtual void SetActive(bool active);
   virtual void SetWindowVisibility(bool visible);
   virtual void WindowFrameChanged();
   virtual void SetBackground(const SkBitmap& background);
   virtual bool ContainsNativeView(gfx::NativeView native_view) const;
 
   virtual void OnAccessibilityNotifications(
       const std::vector<ViewHostMsg_AccessibilityNotification_Params>& params);
 
+  virtual void SetPluginImeEnabled(bool enabled, int plugin_id);
+  virtual bool PostProcessEventForPluginIme(
+      const NativeWebKeyboardEvent& event);
+
   // Methods associated with GPU-accelerated plug-in instances and the
   // accelerated compositor.
   virtual gfx::PluginWindowHandle AllocateFakePluginWindowHandle(bool opaque,
                                                                  bool root);
   virtual void DestroyFakePluginWindowHandle(gfx::PluginWindowHandle window);
 
   // Helper to do the actual cleanup after a plugin handle has been destroyed.
   // Required because DestroyFakePluginWindowHandle() isn't always called for
   // all handles (it's e.g. not called on navigation, when the RWHVMac gets
   // destroyed anyway).
@@ skipping 19 matching lines @@
   void ForceTextureReload();
 
   virtual void SetVisuallyDeemphasized(bool deemphasized);
 
   void KillSelf();
 
   void set_parent_view(NSView* parent_view) { parent_view_ = parent_view; }
 
   void SetTextInputActive(bool active);
 
+  // Sends confirmed plugin IME text back to the renderer.
+  void PluginImeCompositionConfirmed(const string16& text, int plugin_id);
+
   const std::string& selected_text() const { return selected_text_; }
 
   // 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_|.
   RenderWidgetHost* render_widget_host_;
 
   // This is true when we are currently painting and thus should handle extra
@@ skipping 72 matching lines @@
   // Used for positioning a popup menu.
   NSView* parent_view_;
 
   // selected text on the renderer.
   std::string selected_text_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewMac);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_