From f27b386052202100a14fae6cd5a19648546cd839 Mon Sep 17 00:00:00 2001
From: "katakai%japan.sun.com" <katakai%japan.sun.com>
Date: Fri, 10 May 2002 01:11:24 +0000
Subject: [PATCH] bug 142873 Can't turn on IM after a popup window opens Call
 SetFocus() of XIC again to the current focused widget
 r=blizzard,sr=shaver,a=asa(for1.0branch)

---
 widget/src/gtk/nsGtkIMEHelper.cpp |  9 +++++++++
 widget/src/gtk/nsGtkIMEHelper.h   |  2 ++
 widget/src/gtk/nsWindow.cpp       | 19 +++++++++++++++++--
 3 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/widget/src/gtk/nsGtkIMEHelper.cpp b/widget/src/gtk/nsGtkIMEHelper.cpp
index c06d8ce02406..35a535df71f5 100644
--- a/widget/src/gtk/nsGtkIMEHelper.cpp
+++ b/widget/src/gtk/nsGtkIMEHelper.cpp
@@ -54,6 +54,7 @@ static NS_DEFINE_CID(kCharsetConverterManagerCID, NS_ICHARSETCONVERTERMANAGER_CI
 static NS_DEFINE_CID(kPrefServiceCID, NS_PREF_CID);
 
 nsIMEStatus *nsIMEGtkIC::gStatus = 0;
+nsWindow *nsIMEGtkIC::gGlobalFocusWindow = 0;
 #endif // USE_XIM 
 
 nsGtkIMEHelper* nsGtkIMEHelper::gSingleton = nsnull;
@@ -987,6 +988,12 @@ nsIMEGtkIC::GetFocusWindow()
   return mFocusWindow;
 }
 
+nsWindow *
+nsIMEGtkIC::GetGlobalFocusWindow()
+{
+  return gGlobalFocusWindow;
+}
+
 // workaround for kinput2/over-the-spot/ic-per-shell
 //   http://bugzilla.mozilla.org/show_bug.cgi?id=28022
 //
@@ -1010,6 +1017,8 @@ void
 nsIMEGtkIC::SetFocusWindow(nsWindow * aFocusWindow)
 {
   mFocusWindow = aFocusWindow;
+  gGlobalFocusWindow = aFocusWindow;
+
   GdkWindow *gdkWindow = (GdkWindow*)aFocusWindow->GetNativeData(NS_NATIVE_WINDOW);
   if (!gdkWindow) return;
 
diff --git a/widget/src/gtk/nsGtkIMEHelper.h b/widget/src/gtk/nsGtkIMEHelper.h
index c9e1bc0cea89..0fbbd6d65f3c 100644
--- a/widget/src/gtk/nsGtkIMEHelper.h
+++ b/widget/src/gtk/nsGtkIMEHelper.h
@@ -139,6 +139,7 @@ class nsIMEGtkIC {
   static nsIMEStatus *gStatus;
   nsWindow *mClientWindow;
   nsWindow *mFocusWindow;
+  static nsWindow *gGlobalFocusWindow;
   nsIMEGtkIC(nsWindow*, GdkFont*, GdkFont*);
   nsIMEGtkIC(nsWindow*, GdkFont*);
   GdkICPrivate *mIC;
@@ -152,6 +153,7 @@ class nsIMEGtkIC {
   static nsIMEGtkIC *GetXIC(nsWindow*, GdkFont*);
   void SetFocusWindow(nsWindow * aFocusWindow);
   nsWindow* GetFocusWindow();
+  nsWindow* GetGlobalFocusWindow();
   static void UnsetFocusWindow();
   static GdkIMStyle GetInputStyle();
 
diff --git a/widget/src/gtk/nsWindow.cpp b/widget/src/gtk/nsWindow.cpp
index b7455a2c9997..ffc1cf3b4706 100644
--- a/widget/src/gtk/nsWindow.cpp
+++ b/widget/src/gtk/nsWindow.cpp
@@ -3746,7 +3746,7 @@ nsWindow::IMEDestroyIC()
   }
 
   // reset parent window for status window
-  if (xic->mInputStyle & GDK_IM_PREEDIT_CALLBACKS) {
+  if (xic->mInputStyle & GDK_IM_STATUS_CALLBACKS) {
     xic->ResetStatusWindow(this);
   }
 
@@ -3757,11 +3757,26 @@ nsWindow::IMEDestroyIC()
     delete xic;
   } else {
     // xic and mIMEShellWindow are valid
-    // see discussion in bug 53989
+
+    nsWindow *gwin = xic->GetGlobalFocusWindow();
     nsWindow *fwin = xic->GetFocusWindow();
+
+    // bug 53989
+    // if the current focused widget in xic is being destroyed,
+    // we need to change focused window to mIMEShellWindow
     if (fwin && fwin == this) {
       xic->SetFocusWindow(mIMEShellWindow);
       xic->UnsetFocusWindow();
+
+      // bug 142873
+      // if focus is already changed before, we need to change
+      // focus window to the current focused window again for XIC
+      if (gwin && gwin != this && sFocusWindow == gwin) {
+        nsIMEGtkIC *focused_xic = gwin->IMEGetInputContext(PR_FALSE);
+        if (focused_xic) {
+          focused_xic->SetFocusWindow(gwin);
+        }
+      }
     }
   }
 }