diff options
Diffstat (limited to 'src/3rdparty/webkit/WebCore/plugins/qt/PluginPackageQt.cpp')
| -rw-r--r-- | src/3rdparty/webkit/WebCore/plugins/qt/PluginPackageQt.cpp | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/WebCore/plugins/qt/PluginPackageQt.cpp b/src/3rdparty/webkit/WebCore/plugins/qt/PluginPackageQt.cpp index 74deaf62d1..d5292fe04c 100644 --- a/src/3rdparty/webkit/WebCore/plugins/qt/PluginPackageQt.cpp +++ b/src/3rdparty/webkit/WebCore/plugins/qt/PluginPackageQt.cpp @@ -35,6 +35,8 @@ namespace WebCore { +typedef void gtkInitFunc(int *argc, char ***argv); + bool PluginPackage::fetchInfo() { if (!load()) @@ -109,6 +111,7 @@ bool PluginPackage::load() NP_InitializeFuncPtr NP_Initialize; NPError npErr; + gtkInitFunc* gtkInit; NP_Initialize = (NP_InitializeFuncPtr)m_module->resolve("NP_Initialize"); m_NPP_Shutdown = (NPP_ShutdownProcPtr)m_module->resolve("NP_Shutdown"); @@ -127,6 +130,26 @@ bool PluginPackage::load() m_browserFuncs.getvalue = staticPluginQuirkRequiresGtkToolKit_NPN_GetValue; } + // WORKAROUND: Prevent gtk based plugin crashes such as BR# 40567 by + // explicitly forcing the initializing of Gtk, i.e. calling gtk_init, + // whenver the symbol is present in the plugin library loaded above. + // Note that this workaround is based on code from the NSPluginClass ctor + // in KDE's kdebase/apps/nsplugins/viewer/nsplugin.cpp file. + gtkInit = (gtkInitFunc*)m_module->resolve("gtk_init"); + if (gtkInit) { + // Prevent gtk_init() from replacing the X error handlers, since the Gtk + // handlers abort when they receive an X error, thus killing the viewer. +#ifdef Q_WS_X11 + int (*old_error_handler)(Display*, XErrorEvent*) = XSetErrorHandler(0); + int (*old_io_error_handler)(Display*) = XSetIOErrorHandler(0); +#endif + gtkInit(0, 0); +#ifdef Q_WS_X11 + XSetErrorHandler(old_error_handler); + XSetIOErrorHandler(old_io_error_handler); +#endif + } + #if defined(XP_UNIX) npErr = NP_Initialize(&m_browserFuncs, &m_pluginFuncs); #else |