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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_vcl.hxx"
#include <osl/module.h>
#include <unx/gtk/gtkdata.hxx>
#include <unx/gtk/gtkinst.hxx>
#include <unx/salobj.h>
#include <unx/gtk/gtkframe.hxx>
#include <unx/gtk/gtkobject.hxx>
#include <unx/gtk/atkbridge.hxx>
#include <rtl/strbuf.hxx>
#include <rtl/uri.hxx>
#if OSL_DEBUG_LEVEL > 1
#include <stdio.h>
#endif
#include <dlfcn.h>
#include <fcntl.h>
#include <unistd.h>
GtkHookedYieldMutex::GtkHookedYieldMutex()
{
}
/*
* These methods always occur in pairs
* A ThreadsEnter is followed by a ThreadsLeave
* We need to queue up the recursive lock count
* for each pair, so we can accurately restore
* it later.
*/
void GtkHookedYieldMutex::ThreadsEnter()
{
acquire();
if( !aYieldStack.empty() )
{ /* Previously called ThreadsLeave() */
ULONG nCount = aYieldStack.front();
aYieldStack.pop_front();
while( nCount-- > 1 )
acquire();
}
}
void GtkHookedYieldMutex::ThreadsLeave()
{
aYieldStack.push_front( mnCount );
#if OSL_DEBUG_LEVEL > 1
if( mnThreadId &&
mnThreadId != vos::OThread::getCurrentIdentifier())
fprintf( stderr, "\n\n--- A different thread owns the mutex ...---\n\n\n");
#endif
while( mnCount > 1 )
release();
release();
}
void GtkHookedYieldMutex::acquire()
{
SalYieldMutex::acquire();
}
void GtkHookedYieldMutex::release()
{
SalYieldMutex::release();
}
extern "C"
{
#define GET_YIELD_MUTEX() static_cast<GtkHookedYieldMutex*>(GetSalData()->m_pInstance->GetYieldMutex())
static void GdkThreadsEnter( void )
{
GtkHookedYieldMutex *pYieldMutex = GET_YIELD_MUTEX();
pYieldMutex->ThreadsEnter();
}
static void GdkThreadsLeave( void )
{
GtkHookedYieldMutex *pYieldMutex = GET_YIELD_MUTEX();
pYieldMutex->ThreadsLeave();
}
static bool hookLocks( oslModule pModule )
{
typedef void (*GdkLockFn) (GCallback enter_fn, GCallback leave_fn);
GdkLockFn gdk_threads_set_lock_functions =
(GdkLockFn) osl_getAsciiFunctionSymbol( pModule, "gdk_threads_set_lock_functions" );
if ( !gdk_threads_set_lock_functions )
{
#if OSL_DEBUG_LEVEL > 1
fprintf( stderr, "Failed to hook gdk threads locks\n" );
#endif
return false;
}
gdk_threads_set_lock_functions (GdkThreadsEnter, GdkThreadsLeave);
#if OSL_DEBUG_LEVEL > 1
fprintf( stderr, "Hooked gdk threads locks\n" );
#endif
return true;
}
VCL_DLLPUBLIC SalInstance* create_SalInstance( oslModule pModule )
{
/* #i92121# workaround deadlocks in the X11 implementation
*/
static const char* pNoXInitThreads = getenv( "SAL_NO_XINITTHREADS" );
/* #i90094#
from now on we know that an X connection will be
established, so protect X against itself
*/
if( ! ( pNoXInitThreads && *pNoXInitThreads ) )
XInitThreads();
const gchar* pVersion = gtk_check_version( 2, 2, 0 );
if( pVersion )
{
#if OSL_DEBUG_LEVEL > 1
fprintf( stderr, "gtk version conflict: %s\n", pVersion );
#endif
return NULL;
}
GtkYieldMutex *pYieldMutex;
// init gdk thread protection
if ( !g_thread_supported() )
g_thread_init( NULL );
if ( hookLocks( pModule ) )
pYieldMutex = new GtkHookedYieldMutex();
else
pYieldMutex = new GtkYieldMutex();
gdk_threads_init();
GtkInstance* pInstance = new GtkInstance( pYieldMutex );
#if OSL_DEBUG_LEVEL > 1
fprintf( stderr, "creating GtkSalInstance 0x%p\n", pInstance );
#endif
// initialize SalData
GtkData *pSalData = new GtkData();
SetSalData( pSalData );
pSalData->m_pInstance = pInstance;
pSalData->Init();
pSalData->initNWF();
InitAtkBridge();
return pInstance;
}
}
GtkInstance::~GtkInstance()
{
DeInitAtkBridge();
}
SalFrame* GtkInstance::CreateFrame( SalFrame* pParent, ULONG nStyle )
{
return new GtkSalFrame( pParent, nStyle );
}
SalFrame* GtkInstance::CreateChildFrame( SystemParentData* pParentData, ULONG )
{
SalFrame* pFrame = new GtkSalFrame( pParentData );
return pFrame;
}
SalObject* GtkInstance::CreateObject( SalFrame* pParent, SystemWindowData* pWindowData, BOOL bShow )
{
// there is no method to set a visual for a GtkWidget
// so we need the X11SalObject in that case
if( pWindowData )
return X11SalObject::CreateObject( pParent, pWindowData, bShow );
return new GtkSalObject( static_cast<GtkSalFrame*>(pParent), bShow );
}
extern "C"
{
typedef void*(* getDefaultFnc)();
typedef void(* addItemFnc)(void *, const char *);
}
void GtkInstance::AddToRecentDocumentList(const rtl::OUString& rFileUrl, const rtl::OUString& rMimeType)
{
rtl::OString sGtkURL;
rtl_TextEncoding aSystemEnc = osl_getThreadTextEncoding();
if ((aSystemEnc == RTL_TEXTENCODING_UTF8) || (rFileUrl.compareToAscii( "file://", 7 ) != 0))
sGtkURL = rtl::OUStringToOString(rFileUrl, RTL_TEXTENCODING_UTF8);
else
{
//Non-utf8 locales are a bad idea if trying to work with non-ascii filenames
//Decode %XX components
rtl::OUString sDecodedUri = Uri::decode(rFileUrl.copy(7), rtl_UriDecodeToIuri, RTL_TEXTENCODING_UTF8);
//Convert back to system locale encoding
rtl::OString sSystemUrl = rtl::OUStringToOString(sDecodedUri, aSystemEnc);
//Encode to an escaped ASCII-encoded URI
gchar *g_uri = g_filename_to_uri(sSystemUrl.getStr(), NULL, NULL);
sGtkURL = rtl::OString(g_uri);
g_free(g_uri);
}
#if GTK_CHECK_VERSION(2,10,0)
GtkRecentManager *manager = gtk_recent_manager_get_default ();
gtk_recent_manager_add_item (manager, sGtkURL);
(void)rMimeType;
#else
static getDefaultFnc sym_gtk_recent_manager_get_default =
(getDefaultFnc)osl_getAsciiFunctionSymbol( GetSalData()->m_pPlugin, "gtk_recent_manager_get_default" );
static addItemFnc sym_gtk_recent_manager_add_item =
(addItemFnc)osl_getAsciiFunctionSymbol( GetSalData()->m_pPlugin, "gtk_recent_manager_add_item");
if (sym_gtk_recent_manager_get_default && sym_gtk_recent_manager_add_item)
sym_gtk_recent_manager_add_item(sym_gtk_recent_manager_get_default(), sGtkURL);
else
X11SalInstance::AddToRecentDocumentList(rFileUrl, rMimeType);
#endif
}
GtkYieldMutex::GtkYieldMutex()
{
}
void GtkYieldMutex::acquire()
{
vos::OThread::TThreadIdentifier aCurrentThread = vos::OThread::getCurrentIdentifier();
// protect member manipulation
OMutex::acquire();
if( mnCount > 0 && mnThreadId == aCurrentThread )
{
mnCount++;
OMutex::release();
return;
}
OMutex::release();
// obtain gdk mutex
gdk_threads_enter();
// obtained gdk mutex, now lock count is one by definition
OMutex::acquire();
mnCount = 1;
mnThreadId = aCurrentThread;
OMutex::release();
}
void GtkYieldMutex::release()
{
vos::OThread::TThreadIdentifier aCurrentThread = vos::OThread::getCurrentIdentifier();
// protect member manipulation
OMutex::acquire();
// strange things happen, do nothing if we don't own the mutex
if( mnThreadId == aCurrentThread )
{
mnCount--;
if( mnCount == 0 )
{
gdk_threads_leave();
mnThreadId = 0;
}
}
OMutex::release();
}
sal_Bool GtkYieldMutex::tryToAcquire()
{
vos::OThread::TThreadIdentifier aCurrentThread = vos::OThread::getCurrentIdentifier();
// protect member manipulation
OMutex::acquire();
if( mnCount > 0 )
{
if( mnThreadId == aCurrentThread )
{
mnCount++;
OMutex::release();
return sal_True;
}
else
{
OMutex::release();
return sal_False;
}
}
OMutex::release();
// HACK: gdk_threads_mutex is private, we shouldn't use it.
// how to we do a try_lock without having a gdk_threads_try_enter ?
if( ! g_mutex_trylock( gdk_threads_mutex ) )
return sal_False;
// obtained gdk mutex, now lock count is one by definition
OMutex::acquire();
mnCount = 1;
mnThreadId = aCurrentThread;
OMutex::release();
return sal_True;
}
int GtkYieldMutex::Grab()
{
// this MUST only be called by gdk/gtk callbacks:
// they are entered with gdk mutex locked; the mutex
// was unlocked by GtkYieldMutex befor yielding which
// is now locked again by gtk implicitly
// obtained gdk mutex, now lock count is one by definition
OMutex::acquire();
int nRet = mnCount;
if( mnCount == 0 ) // recursive else
mnThreadId = vos::OThread::getCurrentIdentifier();
#if OSL_DEBUG_LEVEL > 1
else if( mnThreadId != vos::OThread::getCurrentIdentifier() )
{
fprintf( stderr, "Yield mutex grabbed in different thread !\n" );
abort();
}
#endif
mnCount = 1;
OMutex::release();
return nRet;
}
void GtkYieldMutex::Ungrab( int nGrabs )
{
// this MUST only be called when leaving the callback
// that locked the mutex with Grab()
OMutex::acquire();
mnCount = nGrabs;
if( mnCount == 0 )
mnThreadId = 0;
OMutex::release();
}
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