Cancels an ongoing IME composition when receiving an IME_CANCEL_COMPOSITION e...

chrome/browser/ime_input.cc

Index: chrome/browser/ime_input.cc
===================================================================
--- chrome/browser/ime_input.cc	(revision 47867)
+++ chrome/browser/ime_input.cc	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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.
 
@@ -304,6 +304,17 @@
   ::ImmAssociateContextEx(window_handle, NULL, 0);
 }
 
+void ImeInput::CancelIME(HWND window_handle) {
+  if (is_composing_) {
+    HIMC imm_context = ::ImmGetContext(window_handle);
+    if (imm_context) {
+      ::ImmNotifyIME(imm_context, NI_COMPOSITIONSTR, CPS_CANCEL, 0);
+      ::ImmReleaseContext(window_handle, imm_context);
+    }
+    ResetComposition(window_handle);
+  }
+}
+
 void ImeInput::EnableIME(HWND window_handle,
                          const gfx::Rect& caret_rect,
                          bool complete) {