From 786984e7e47a63094ad64ec86a4892cc5c0ad6d4 Mon Sep 17 00:00:00 2001
From: YAMAMOTO Atsushi <atsushi.yamyam@gmail.com>
Date: Tue, 15 Dec 2015 01:07:40 +0900
Subject: [PATCH] Windows: Fix QWindowsInputContext for Japanese IME.

Change the QWindowsInputContext::composition if it is called
with lParam has flags GCS_RESULTSTR and GCS_DELTASTART,
it doesn't call endContextComposition.

Task-number: QTBUG-49955
Change-Id: I2035c4b3c1e947c5757d7532150798963fc39012
Reviewed-by: Tasuku Suzuki <stasuku@gmail.com>
Reviewed-by: Takumi ASAKI <takumi.asaki@gmail.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Reviewed-by: Andy Shaw <andy.shaw@theqtcompany.com>
Reviewed-by: Liang Qi <liang.qi@theqtcompany.com>
---
 src/plugins/platforms/windows/qwindowsinputcontext.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/plugins/platforms/windows/qwindowsinputcontext.cpp b/src/plugins/platforms/windows/qwindowsinputcontext.cpp
index 7e1cc563cb..56b5561756 100644
--- a/src/plugins/platforms/windows/qwindowsinputcontext.cpp
+++ b/src/plugins/platforms/windows/qwindowsinputcontext.cpp
@@ -484,7 +484,8 @@ bool QWindowsInputContext::composition(HWND hwnd, LPARAM lParamIn)
     if (lParam & GCS_RESULTSTR) {
         // A fixed result, return the converted string
         event->setCommitString(getCompositionString(himc, GCS_RESULTSTR));
-        endContextComposition();
+        if (!(lParam & GCS_DELTASTART))
+            endContextComposition();
     }
     const bool result = QCoreApplication::sendEvent(m_compositionContext.focusObject, event.data());
     qCDebug(lcQpaInputMethods) << '<' << __FUNCTION__ << "sending markup="