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From d2a4e30fdb92aeaf476dcaaf2b5d6f8275d6af70 Mon Sep 17 00:00:00 2001
From: Peter Wu <lekensteyn@gmail.com>
Date: Tue, 4 Sep 2012 19:40:08 +0200
Subject: [PATCH] Do not crash on missing/invalid DISPLAY envvar.
- Check whether the passed DISPLAY environment variable contains ":".
- Fallback to "-display" parameter passed to QApplication.
---
src/CMakeLists.txt | 2 ++
src/qibusbus.cpp | 23 ++++++++++++++++-------
2 files changed, 18 insertions(+), 7 deletions(-)
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 2ad5588..8866ac0 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -92,9 +92,11 @@ set_target_properties(
target_link_libraries(
ibus-qt
debug ${QT_QTCORE_LIBRARY_DEBUG}
+ debug ${QT_QTGUI_LIBRARY_DEBUG}
debug ${QT_QTDBUS_LIBRARY_DEBUG}
debug ${QT_QTXML_LIBRARY_DEBUG}
optimized ${QT_QTCORE_LIBRARY_RELEASE}
+ optimized ${QT_QTGUI_LIBRARY_RELEASE}
optimized ${QT_QTDBUS_LIBRARY_RELEASE}
optimized ${QT_QTXML_LIBRARY_RELEASE}
${DBUS_LIBRARIES}
diff --git a/src/qibusbus.cpp b/src/qibusbus.cpp
index 6a45d65..ed8248a 100644
--- a/src/qibusbus.cpp
+++ b/src/qibusbus.cpp
@@ -12,7 +12,8 @@
#include "qibusbus.h"
#include "qibusibusproxy.h"
#include "qibusdbusproxy.h"
-
+#include <X11/Xlib.h>
+#include <QX11Info>
namespace IBus {
/**
@@ -121,15 +122,23 @@
Bus::getSocketPath (void)
{
QString display = getenv ("DISPLAY");
- QStringList strs = display.split(":");
QString hostname = "unix";
QString display_number = "0";
+ /* fallback when -display is passed to QApplication with no DISPLAY env */
+ if (display == NULL) {
+ Display * dpy = QX11Info::display();
+ if (dpy)
+ display = XDisplayString(dpy);
+ }
+ if (display != NULL && display.contains(':')) {
+ QStringList strs = display.split(":");
- if (!strs[0].isEmpty())
- hostname = strs[0];
- strs = strs[1].split(".");
- if (!strs[0].isEmpty())
- display_number = strs[0];
+ if (!strs[0].isEmpty())
+ hostname = strs[0];
+ strs = strs[1].split(".");
+ if (!strs[0].isEmpty())
+ display_number = strs[0];
+ }
QString path =
QDir::homePath() +
--
1.7.10
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