Added support for a reply from the StartComposition message. Necessary for XIM support on UNIX.

content/events/public/MANIFEST

@@ -6,3 +6,4 @@ nsIEventStateManager.h
 nsIPrivateDOMEvent.h
 nsIPrivateTextEvent.h
 nsIPrivateTextRange.h
+nsIPrivateCompositionEvent.h

content/events/public/Makefile.in

@@ -30,6 +30,7 @@ EXPORTS =			    \
 	nsIPrivateDOMEvent.h	    \
 	nsIPrivateTextEvent.h		\
 	nsIPrivateTextRange.h		\
+	nsIPrivateCompositionEvent.h \
         $(NULL)
 
 EXPORTS := $(addprefix $(srcdir)/, $(EXPORTS))

content/events/public/makefile.win

@@ -24,6 +24,7 @@ EXPORTS =			    \
 	nsIPrivateDOMEvent.h	    \
 	nsIPrivateTextEvent.h		\
 	nsIPrivateTextRange.h		\
+	nsIPrivateCompositionEvent.h		\
         $(NULL)
 
 MODULE=raptor 

content/events/public/nsIPrivateCompositionEvent.h

@@ -0,0 +1,39 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+#ifndef nsIPrivateCompositionEvent_h__
+#define nsIPrivateCompositionEvent_h__
+
+#include "nsGUIEvent.h"
+#include "nsISupports.h"
+
+// {ECF6BEF1-5F0C-11d3-9EB3-0060089FE59B}
+#define NS_IPRIVATECOMPOSITIONEVENT_IID	\
+{ 0xecf6bef1, 0x5f0c, 0x11d3, \
+{ 0x9e, 0xb3, 0x0, 0x60, 0x8, 0x9f, 0xe5, 0x9b }}
+
+class nsIPrivateCompositionEvent : public nsISupports {
+
+public:
+	static const nsIID& GetIID() { static nsIID iid = NS_IPRIVATECOMPOSITIONEVENT_IID; return iid; }
+
+	NS_IMETHOD GetCompositionReply(struct nsTextEventReply** aReply) = 0;
+};
+
+#endif // nsIPrivateCompositionEvent_h__
+

content/events/src/nsDOMEvent.cpp

@@ -28,6 +28,7 @@
 #include "nsIPresShell.h"
 #include "nsPrivateTextRange.h"
 #include "nsIDocument.h"
+#include "nsIPrivateCompositionEvent.h"
 
 static NS_DEFINE_IID(kIDOMNodeIID, NS_IDOMNODE_IID);
 static NS_DEFINE_IID(kIFrameIID, NS_IFRAME_IID);
@@ -38,6 +39,7 @@ static NS_DEFINE_IID(kIDOMNSUIEventIID, NS_IDOMNSUIEVENT_IID);
 static NS_DEFINE_IID(kIPrivateDOMEventIID, NS_IPRIVATEDOMEVENT_IID);
 static NS_DEFINE_IID(kIPrivateTextEventIID, NS_IPRIVATETEXTEVENT_IID);
 static NS_DEFINE_IID(kIWebShellIID, NS_IWEB_SHELL_IID);
+static NS_DEFINE_IID(kIPrivateCompositionEventIID,NS_IPRIVATECOMPOSITIONEVENT_IID);
 
 static char* mEventNames[] = {
   "mousedown", "mouseup", "click", "dblclick", "mouseover",
@@ -128,6 +130,11 @@ nsresult nsDOMEvent::QueryInterface(const nsIID& aIID,
 	AddRef();
 	return NS_OK;
   }
+  if (aIID.Equals(kIPrivateCompositionEventIID)) {
+    *aInstancePtrResult = (void*)((nsIPrivateCompositionEvent*)this);
+    AddRef();
+    return NS_OK;
+  }
   return NS_NOINTERFACE;
 }
 
@@ -269,6 +276,17 @@ NS_METHOD nsDOMEvent::GetEventReply(nsTextEventReply** aReply)
 	return NS_ERROR_FAILURE;
 }
 
+NS_METHOD nsDOMEvent::GetCompositionReply(nsTextEventReply** aReply)
+{
+  if (mEvent->message==NS_COMPOSITION_START) {
+    *aReply = &(((nsCompositionEvent*)mEvent)->theReply);
+    return NS_OK;
+  }
+
+  return NS_ERROR_FAILURE;
+
+}
+
 NS_METHOD nsDOMEvent::GetScreenX(PRInt32* aScreenX)
 {
   // pinkerton -- i don't understand how we can assume that mEvent

content/events/src/nsDOMEvent.h

@@ -23,6 +23,7 @@
 #include "nsIDOMNSUIEvent.h"
 #include "nsISupports.h"
 #include "nsIPrivateDOMEvent.h"
+#include "nsIPrivateCompositionEvent.h"
 #include "nsIPrivateTextEvent.h"
 #include "nsIPrivateTextRange.h"
 
@@ -33,7 +34,7 @@ class nsIContent;
 
 class nsIDOMRenderingContext;
 
-class nsDOMEvent : public nsIDOMUIEvent, public nsIDOMNSUIEvent, public nsIPrivateDOMEvent, public nsIPrivateTextEvent {
+class nsDOMEvent : public nsIDOMUIEvent, public nsIDOMNSUIEvent, public nsIPrivateDOMEvent, public nsIPrivateTextEvent, public nsIPrivateCompositionEvent {
 
 public:
   // Note: this enum must be kept in sync with mEventNames in nsDOMEvent.cpp
@@ -135,6 +136,8 @@ public:
 	NS_IMETHOD GetInputRange(nsIPrivateTextRangeList** aInputRange);
 	NS_IMETHOD GetEventReply(nsTextEventReply** aReply);
 
+  // nsIPrivateCompositionEvent interface
+  NS_IMETHOD GetCompositionReply(nsTextEventReply** aReply);
 
 protected:
 

editor/base/nsEditor.cpp

@@ -1104,7 +1104,7 @@ nsEditor::DebugUnitTests(PRInt32 *outNumTests, PRInt32 *outNumTestsFailed)
 // created of IMETextTxn's.
 //
 NS_IMETHODIMP
-nsEditor::BeginComposition(void)
+nsEditor::BeginComposition(nsTextEventReply* aReply)
 {
 #ifdef DEBUG_tague
   printf("nsEditor::StartComposition\n");
@@ -1113,10 +1113,16 @@ nsEditor::BeginComposition(void)
   PRInt32 offset;
   nsCOMPtr<nsIDOMSelection> selection;
   nsCOMPtr<nsIDOMCharacterData> nodeAsText;
-  
+  nsCOMPtr<nsICaret> caretP; 
   if (!mPresShellWeak) return NS_ERROR_NOT_INITIALIZED;
   nsCOMPtr<nsIPresShell> ps = do_QueryReferent(mPresShellWeak);
   if (!ps) return NS_ERROR_NOT_INITIALIZED;
+  result = ps->GetCaret(getter_AddRefs(caretP));
+  if (NS_SUCCEEDED(result) && caretP) {
+    if (aReply) {
+      caretP->GetWindowRelativeCoordinates(aReply->mCursorPosition,aReply->mCursorIsCollapsed);
+    }
+  }
   result = ps->GetSelection(SELECTION_NORMAL, getter_AddRefs(selection));
   if ((NS_SUCCEEDED(result)) && selection)
   {
@@ -3879,7 +3885,7 @@ nsEditor::CreateTxnForIMEText(const nsString & aStringToInsert,
   nsresult  result;
 
   if (mIMETextNode==nsnull) 
-    BeginComposition();
+    BeginComposition(nsnull);
 
   result = TransactionFactory::GetNewTransaction(IMETextTxn::GetCID(), (EditTxn **)aTxn);
   if (nsnull!=*aTxn) {

editor/base/nsEditor.h

@@ -193,7 +193,7 @@ public:
 
   /* ------------ nsIEditorIMESupport methods -------------- */
   
-  NS_IMETHOD BeginComposition(void);
+  NS_IMETHOD BeginComposition(nsTextEventReply* aReply);
   NS_IMETHOD SetCompositionString(const nsString& aCompositionString, nsIPrivateTextRangeList* aTextRangeList,nsTextEventReply* aReply);
   NS_IMETHOD EndComposition(void);
 

editor/base/nsEditorEventListeners.cpp

@@ -32,6 +32,7 @@
 #include "nsIDOMUIEvent.h"
 #include "nsIDOMNSUIEvent.h"
 #include "nsIPrivateTextEvent.h"
+#include "nsIPrivateCompositionEvent.h"
 #include "nsIEditorMailSupport.h"
 #include "nsIDocumentEncoder.h"
 
@@ -1489,7 +1490,15 @@ void nsTextEditorCompositionListener::SetEditor(nsIEditor *aEditor)
 nsresult
 nsTextEditorCompositionListener::HandleStartComposition(nsIDOMEvent* aCompositionEvent)
 {
-   return mEditor->BeginComposition();
+  nsCOMPtr<nsIPrivateCompositionEvent> pCompositionEvent = do_QueryInterface(aCompositionEvent);
+  nsTextEventReply* eventReply;
+
+  if (!pCompositionEvent) return NS_ERROR_FAILURE;
+  
+  nsresult rv = pCompositionEvent->GetCompositionReply(&eventReply);
+  if (NS_FAILED(rv)) return rv;
+
+  return mEditor->BeginComposition(eventReply);
 }
 
 nsresult

editor/libeditor/base/nsEditor.cpp

@@ -1104,7 +1104,7 @@ nsEditor::DebugUnitTests(PRInt32 *outNumTests, PRInt32 *outNumTestsFailed)
 // created of IMETextTxn's.
 //
 NS_IMETHODIMP
-nsEditor::BeginComposition(void)
+nsEditor::BeginComposition(nsTextEventReply* aReply)
 {
 #ifdef DEBUG_tague
   printf("nsEditor::StartComposition\n");
@@ -1113,10 +1113,16 @@ nsEditor::BeginComposition(void)
   PRInt32 offset;
   nsCOMPtr<nsIDOMSelection> selection;
   nsCOMPtr<nsIDOMCharacterData> nodeAsText;
-  
+  nsCOMPtr<nsICaret> caretP; 
   if (!mPresShellWeak) return NS_ERROR_NOT_INITIALIZED;
   nsCOMPtr<nsIPresShell> ps = do_QueryReferent(mPresShellWeak);
   if (!ps) return NS_ERROR_NOT_INITIALIZED;
+  result = ps->GetCaret(getter_AddRefs(caretP));
+  if (NS_SUCCEEDED(result) && caretP) {
+    if (aReply) {
+      caretP->GetWindowRelativeCoordinates(aReply->mCursorPosition,aReply->mCursorIsCollapsed);
+    }
+  }
   result = ps->GetSelection(SELECTION_NORMAL, getter_AddRefs(selection));
   if ((NS_SUCCEEDED(result)) && selection)
   {
@@ -3879,7 +3885,7 @@ nsEditor::CreateTxnForIMEText(const nsString & aStringToInsert,
   nsresult  result;
 
   if (mIMETextNode==nsnull) 
-    BeginComposition();
+    BeginComposition(nsnull);
 
   result = TransactionFactory::GetNewTransaction(IMETextTxn::GetCID(), (EditTxn **)aTxn);
   if (nsnull!=*aTxn) {

editor/libeditor/base/nsEditor.h

@@ -193,7 +193,7 @@ public:
 
   /* ------------ nsIEditorIMESupport methods -------------- */
   
-  NS_IMETHOD BeginComposition(void);
+  NS_IMETHOD BeginComposition(nsTextEventReply* aReply);
   NS_IMETHOD SetCompositionString(const nsString& aCompositionString, nsIPrivateTextRangeList* aTextRangeList,nsTextEventReply* aReply);
   NS_IMETHOD EndComposition(void);
 

editor/libeditor/text/nsEditorEventListeners.cpp

@@ -32,6 +32,7 @@
 #include "nsIDOMUIEvent.h"
 #include "nsIDOMNSUIEvent.h"
 #include "nsIPrivateTextEvent.h"
+#include "nsIPrivateCompositionEvent.h"
 #include "nsIEditorMailSupport.h"
 #include "nsIDocumentEncoder.h"
 
@@ -1489,7 +1490,15 @@ void nsTextEditorCompositionListener::SetEditor(nsIEditor *aEditor)
 nsresult
 nsTextEditorCompositionListener::HandleStartComposition(nsIDOMEvent* aCompositionEvent)
 {
-   return mEditor->BeginComposition();
+  nsCOMPtr<nsIPrivateCompositionEvent> pCompositionEvent = do_QueryInterface(aCompositionEvent);
+  nsTextEventReply* eventReply;
+
+  if (!pCompositionEvent) return NS_ERROR_FAILURE;
+  
+  nsresult rv = pCompositionEvent->GetCompositionReply(&eventReply);
+  if (NS_FAILED(rv)) return rv;
+
+  return mEditor->BeginComposition(eventReply);
 }
 
 nsresult

editor/public/nsIEditorIMESupport.h

@@ -36,10 +36,10 @@ public:
 
 
   /**
-   * BeginComposition() Handles the start of inline input composition.
+   * BeginComposition(nsTextEventReply* aReply) Handles the start of inline input composition.
    */
 
-  NS_IMETHOD BeginComposition(void) = 0;
+  NS_IMETHOD BeginComposition(nsTextEventReply *aReply) = 0;
 
   /**
    * SetCompositionString() Sets the inline input composition string.

layout/events/public/MANIFEST

@@ -6,3 +6,4 @@ nsIEventStateManager.h
 nsIPrivateDOMEvent.h
 nsIPrivateTextEvent.h
 nsIPrivateTextRange.h
+nsIPrivateCompositionEvent.h

layout/events/public/Makefile.in

@@ -30,6 +30,7 @@ EXPORTS =			    \
 	nsIPrivateDOMEvent.h	    \
 	nsIPrivateTextEvent.h		\
 	nsIPrivateTextRange.h		\
+	nsIPrivateCompositionEvent.h \
         $(NULL)
 
 EXPORTS := $(addprefix $(srcdir)/, $(EXPORTS))

layout/events/public/makefile.win

@@ -24,6 +24,7 @@ EXPORTS =			    \
 	nsIPrivateDOMEvent.h	    \
 	nsIPrivateTextEvent.h		\
 	nsIPrivateTextRange.h		\
+	nsIPrivateCompositionEvent.h		\
         $(NULL)
 
 MODULE=raptor 

layout/events/public/nsIPrivateCompositionEvent.h

@@ -0,0 +1,39 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+#ifndef nsIPrivateCompositionEvent_h__
+#define nsIPrivateCompositionEvent_h__
+
+#include "nsGUIEvent.h"
+#include "nsISupports.h"
+
+// {ECF6BEF1-5F0C-11d3-9EB3-0060089FE59B}
+#define NS_IPRIVATECOMPOSITIONEVENT_IID	\
+{ 0xecf6bef1, 0x5f0c, 0x11d3, \
+{ 0x9e, 0xb3, 0x0, 0x60, 0x8, 0x9f, 0xe5, 0x9b }}
+
+class nsIPrivateCompositionEvent : public nsISupports {
+
+public:
+	static const nsIID& GetIID() { static nsIID iid = NS_IPRIVATECOMPOSITIONEVENT_IID; return iid; }
+
+	NS_IMETHOD GetCompositionReply(struct nsTextEventReply** aReply) = 0;
+};
+
+#endif // nsIPrivateCompositionEvent_h__
+

layout/events/src/nsDOMEvent.cpp

@@ -28,6 +28,7 @@
 #include "nsIPresShell.h"
 #include "nsPrivateTextRange.h"
 #include "nsIDocument.h"
+#include "nsIPrivateCompositionEvent.h"
 
 static NS_DEFINE_IID(kIDOMNodeIID, NS_IDOMNODE_IID);
 static NS_DEFINE_IID(kIFrameIID, NS_IFRAME_IID);
@@ -38,6 +39,7 @@ static NS_DEFINE_IID(kIDOMNSUIEventIID, NS_IDOMNSUIEVENT_IID);
 static NS_DEFINE_IID(kIPrivateDOMEventIID, NS_IPRIVATEDOMEVENT_IID);
 static NS_DEFINE_IID(kIPrivateTextEventIID, NS_IPRIVATETEXTEVENT_IID);
 static NS_DEFINE_IID(kIWebShellIID, NS_IWEB_SHELL_IID);
+static NS_DEFINE_IID(kIPrivateCompositionEventIID,NS_IPRIVATECOMPOSITIONEVENT_IID);
 
 static char* mEventNames[] = {
   "mousedown", "mouseup", "click", "dblclick", "mouseover",
@@ -128,6 +130,11 @@ nsresult nsDOMEvent::QueryInterface(const nsIID& aIID,
 	AddRef();
 	return NS_OK;
   }
+  if (aIID.Equals(kIPrivateCompositionEventIID)) {
+    *aInstancePtrResult = (void*)((nsIPrivateCompositionEvent*)this);
+    AddRef();
+    return NS_OK;
+  }
   return NS_NOINTERFACE;
 }
 
@@ -269,6 +276,17 @@ NS_METHOD nsDOMEvent::GetEventReply(nsTextEventReply** aReply)
 	return NS_ERROR_FAILURE;
 }
 
+NS_METHOD nsDOMEvent::GetCompositionReply(nsTextEventReply** aReply)
+{
+  if (mEvent->message==NS_COMPOSITION_START) {
+    *aReply = &(((nsCompositionEvent*)mEvent)->theReply);
+    return NS_OK;
+  }
+
+  return NS_ERROR_FAILURE;
+
+}
+
 NS_METHOD nsDOMEvent::GetScreenX(PRInt32* aScreenX)
 {
   // pinkerton -- i don't understand how we can assume that mEvent

layout/events/src/nsDOMEvent.h

@@ -23,6 +23,7 @@
 #include "nsIDOMNSUIEvent.h"
 #include "nsISupports.h"
 #include "nsIPrivateDOMEvent.h"
+#include "nsIPrivateCompositionEvent.h"
 #include "nsIPrivateTextEvent.h"
 #include "nsIPrivateTextRange.h"
 
@@ -33,7 +34,7 @@ class nsIContent;
 
 class nsIDOMRenderingContext;
 
-class nsDOMEvent : public nsIDOMUIEvent, public nsIDOMNSUIEvent, public nsIPrivateDOMEvent, public nsIPrivateTextEvent {
+class nsDOMEvent : public nsIDOMUIEvent, public nsIDOMNSUIEvent, public nsIPrivateDOMEvent, public nsIPrivateTextEvent, public nsIPrivateCompositionEvent {
 
 public:
   // Note: this enum must be kept in sync with mEventNames in nsDOMEvent.cpp
@@ -135,6 +136,8 @@ public:
 	NS_IMETHOD GetInputRange(nsIPrivateTextRangeList** aInputRange);
 	NS_IMETHOD GetEventReply(nsTextEventReply** aReply);
 
+  // nsIPrivateCompositionEvent interface
+  NS_IMETHOD GetCompositionReply(nsTextEventReply** aReply);
 
 protected:
 

view/src/nsViewManager.cpp

@@ -1585,9 +1585,13 @@ NS_IMETHODIMP nsViewManager :: DispatchEvent(nsGUIEvent *aEvent, nsEventStatus &
 		if (aEvent->message==NS_TEXT_EVENT) {
 			((nsTextEvent*)aEvent)->theReply.mCursorPosition.x=NSTwipsToIntPixels(((nsTextEvent*)aEvent)->theReply.mCursorPosition.x, t2p);
 			((nsTextEvent*)aEvent)->theReply.mCursorPosition.y=NSTwipsToIntPixels(((nsTextEvent*)aEvent)->theReply.mCursorPosition.y, t2p);
-       }
-      }
-
+		}
+		if (aEvent->message==NS_COMPOSITION_START) {
+			((nsCompositionEvent*)aEvent)->theReply.mCursorPosition.x=NSTwipsToIntPixels(((nsCompositionEvent*)aEvent)->theReply.mCursorPosition.x,t2p);
+	        ((nsCompositionEvent*)aEvent)->theReply.mCursorPosition.y=NSTwipsToIntPixels(((nsCompositionEvent*)aEvent)->theReply.mCursorPosition.y,t2p);
+		}
+	  }
+    
       break;
     }
   }

widget/public/nsGUIEvent.h

@@ -166,6 +166,7 @@ struct nsTextEvent : public nsInputEvent {
 
 struct nsCompositionEvent : public nsInputEvent {
 	PRUint32			compositionMessage;
+	nsTextEventReply	theReply;
 };
 
 /**

widget/src/windows/nsWindow.cpp

@@ -2680,16 +2680,9 @@ PRBool nsWindow::ProcessMessage(UINT msg, WPARAM wParam, LPARAM lParam, LRESULT
 			if (hIMEContext==NULL) {
 				return PR_TRUE;
 			}
-
-			compForm.dwStyle = CFS_POINT;
-			compForm.ptCurrentPos.x = 100;
-			compForm.ptCurrentPos.y = 100;
-
-//			::ImmSetCompositionWindow(hIMEContext,&compForm);	don't do this! it's bad.
-			::ImmReleaseContext(mWnd,hIMEContext);
-
-			HandleStartComposition();
+			HandleStartComposition(hIMEContext);
 			result = PR_TRUE;
+			::ImmReleaseContext(mWnd,hIMEContext);
 			}
 			break;
 
@@ -2779,7 +2772,7 @@ PRBool nsWindow::ProcessMessage(UINT msg, WPARAM wParam, LPARAM lParam, LRESULT
 				result = PR_TRUE;
 				HandleTextEvent(hIMEContext);
 				HandleEndComposition();
-				HandleStartComposition();
+				HandleStartComposition(hIMEContext);
 			}
 			
 			::ImmReleaseContext(mWnd,hIMEContext);
@@ -3533,10 +3526,11 @@ nsWindow::HandleTextEvent(HIMC hIMEContext)
 }
 
 void
-nsWindow::HandleStartComposition(void)
+nsWindow::HandleStartComposition(HIMC hIMEContext)
 {
 	nsCompositionEvent	event;
 	nsPoint				point;
+	CANDIDATEFORM		candForm;
 
 	point.x	= 0;
 	point.y = 0;
@@ -3545,6 +3539,18 @@ nsWindow::HandleStartComposition(void)
 	event.eventStructType = NS_COMPOSITION_START;
 	event.compositionMessage = NS_COMPOSITION_START;
 	(void)DispatchWindowEvent(&event);
+
+	//
+	// Post process event
+	//
+	candForm.dwIndex = 0;
+	candForm.dwStyle = CFS_CANDIDATEPOS;
+	candForm.ptCurrentPos.x = event.theReply.mCursorPosition.x + IME_X_OFFSET;
+	candForm.ptCurrentPos.y = event.theReply.mCursorPosition.y + IME_Y_OFFSET;
+#ifdef DEBUG_tague
+	printf("Candidate window position: x=%d, y=%d\n",candForm.ptCurrentPos.x,candForm.ptCurrentPos.y);
+#endif
+	::ImmSetCandidateWindow(hIMEContext,&candForm);
 	NS_RELEASE(event.widget);
 }
 

widget/src/windows/nsWindow.h

@@ -193,7 +193,7 @@ protected:
 
     void GetNonClientBounds(nsRect &aRect);
 	void HandleTextEvent(HIMC hIMEContext);
-	void HandleStartComposition(void);
+	void HandleStartComposition(HIMC hIMEContext);
 	void HandleEndComposition(void);
 	void MapDBCSAtrributeArrayToUnicodeOffsets(PRUint32* textRangeListLengthResult, nsTextRangeArray* textRangeListResult);