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libreoffice/0001-catch-and-rethrow-late...

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From 28fe78604ca46319ae596d04ddca206e6b2672a7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Caol=C3=A1n=20McNamara?= <caolanm@redhat.com>
Date: Fri, 21 Oct 2016 14:14:10 +0100
Subject: [PATCH] catch and rethrow later uno exceptions within glib signals
after g_main_context_iteration when its safe to do so again
otherwise if something happens inside the glib signal
callback and the exception skips the code waiting
for the callback to return, subsequent attempts to
show the native gtk3 error dialog will fail
Change-Id: I271c09f8f1f00c0eca76191fcb63ddf56c10060f
---
vcl/inc/unx/gtk/gtkdata.hxx | 2 ++
vcl/inc/unx/gtk/gtkframe.hxx | 7 ++++
vcl/unx/gtk3/gtk3gtkdata.cxx | 4 +++
vcl/unx/gtk3/gtk3gtkframe.cxx | 75 ++++++++++++++++++++++++++-----------------
4 files changed, 58 insertions(+), 30 deletions(-)
diff --git a/vcl/inc/unx/gtk/gtkdata.hxx b/vcl/inc/unx/gtk/gtkdata.hxx
index f5e1e03..ffb0fb7 100644
--- a/vcl/inc/unx/gtk/gtkdata.hxx
+++ b/vcl/inc/unx/gtk/gtkdata.hxx
@@ -97,6 +97,7 @@ class GtkData : public SalGenericData
GSource* m_pUserEvent;
osl::Mutex m_aDispatchMutex;
oslCondition m_aDispatchCondition;
+ css::uno::Any m_aException;
bool blockIdleTimeout;
public:
@@ -120,6 +121,7 @@ public:
inline GtkSalDisplay *GetGtkDisplay() const;
bool BlockIdleTimeout() const { return blockIdleTimeout; }
+ void setException(const css::uno::Any& rException) { m_aException = rException; }
};
class GtkSalFrame;
diff --git a/vcl/inc/unx/gtk/gtkframe.hxx b/vcl/inc/unx/gtk/gtkframe.hxx
index 0cdff6c..40ae9e2 100644
--- a/vcl/inc/unx/gtk/gtkframe.hxx
+++ b/vcl/inc/unx/gtk/gtkframe.hxx
@@ -539,6 +539,13 @@ public:
sal_uIntPtr GetNativeWindowHandle(GtkWidget *pWidget);
virtual sal_uIntPtr GetNativeWindowHandle() override;
+ //Call the usual SalFrame Callback, but catch uno exceptionss and delegate
+ //to GtkData to rethrow them after the gsignal is processed when its safe
+ //to do so again in our own code after the g_main_context_iteration call
+ //which triggers the gsignals.
+ long CallCallbackExc(SalEvent nEvent, const void* pEvent) const;
+
+
static void KeyCodeToGdkKey(const vcl::KeyCode& rKeyCode,
guint* pGdkKeyCode, GdkModifierType *pGdkModifiers);
diff --git a/vcl/unx/gtk3/gtk3gtkdata.cxx b/vcl/unx/gtk3/gtk3gtkdata.cxx
index 17cad89f..70f9249 100644
--- a/vcl/unx/gtk3/gtk3gtkdata.cxx
+++ b/vcl/unx/gtk3/gtk3gtkdata.cxx
@@ -51,6 +51,8 @@
# include <gdk/gdkx.h>
#endif
+#include <cppuhelper/exc_hlp.hxx>
+
using namespace vcl_sal;
/***************************************************************
@@ -478,6 +480,8 @@ SalYieldResult GtkData::Yield( bool bWait, bool bHandleAllCurrentEvents )
if( wasOneEvent )
bWasEvent = true;
}
+ if (m_aException.hasValue())
+ ::cppu::throwException(m_aException);
}
else if( bWait )
{
diff --git a/vcl/unx/gtk3/gtk3gtkframe.cxx b/vcl/unx/gtk3/gtk3gtkframe.cxx
index 9fc972da..e5ddb07 100644
--- a/vcl/unx/gtk3/gtk3gtkframe.cxx
+++ b/vcl/unx/gtk3/gtk3gtkframe.cxx
@@ -37,6 +37,7 @@
#include <vcl/svapp.hxx>
#include <vcl/window.hxx>
#include <vcl/settings.hxx>
+#include <cppuhelper/exc_hlp.hxx>
#include <config_gio.h>
@@ -453,7 +454,7 @@ void GtkSalFrame::doKeyCallback( guint state,
if( bDown )
{
- bool bHandled = CallCallback( SalEvent::KeyInput, &aEvent );
+ bool bHandled = CallCallbackExc( SalEvent::KeyInput, &aEvent );
// #i46889# copy AlternateKeyCode handling from generic plugin
if( ! bHandled )
{
@@ -463,16 +464,16 @@ void GtkSalFrame::doKeyCallback( guint state,
aEvent.mnCode = aAlternate.nKeyCode;
if( aAlternate.nCharCode )
aEvent.mnCharCode = aAlternate.nCharCode;
- CallCallback( SalEvent::KeyInput, &aEvent );
+ CallCallbackExc( SalEvent::KeyInput, &aEvent );
}
}
if( bSendRelease && ! aDel.isDeleted() )
{
- CallCallback( SalEvent::KeyUp, &aEvent );
+ CallCallbackExc( SalEvent::KeyUp, &aEvent );
}
}
else
- CallCallback( SalEvent::KeyUp, &aEvent );
+ CallCallbackExc( SalEvent::KeyUp, &aEvent );
}
GtkSalFrame::GtkSalFrame( SalFrame* pParent, SalFrameStyleFlags nStyle )
@@ -2611,7 +2612,7 @@ gboolean GtkSalFrame::signalButton( GtkWidget*, GdkEventButton* pEvent, gpointer
if (!aDel.isDeleted())
{
- pThis->CallCallback( nEventType, &aEvent );
+ pThis->CallCallbackExc( nEventType, &aEvent );
}
return true;
@@ -2651,7 +2652,7 @@ gboolean GtkSalFrame::signalScroll(GtkWidget*, GdkEventScroll* pEvent, gpointer
if (aEvent.mnScrollLines == 0)
aEvent.mnScrollLines = 1;
- pThis->CallCallback(SalEvent::WheelMouse, &aEvent);
+ pThis->CallCallbackExc(SalEvent::WheelMouse, &aEvent);
}
if (pEvent->delta_y != 0.0)
@@ -2665,7 +2666,7 @@ gboolean GtkSalFrame::signalScroll(GtkWidget*, GdkEventScroll* pEvent, gpointer
if (aEvent.mnScrollLines == 0)
aEvent.mnScrollLines = 1;
- pThis->CallCallback(SalEvent::WheelMouse, &aEvent);
+ pThis->CallCallbackExc(SalEvent::WheelMouse, &aEvent);
}
break;
@@ -2675,7 +2676,7 @@ gboolean GtkSalFrame::signalScroll(GtkWidget*, GdkEventScroll* pEvent, gpointer
aEvent.mnNotchDelta = 1;
aEvent.mnScrollLines = 3;
aEvent.mbHorz = false;
- pThis->CallCallback(SalEvent::WheelMouse, &aEvent);
+ pThis->CallCallbackExc(SalEvent::WheelMouse, &aEvent);
break;
case GDK_SCROLL_DOWN:
@@ -2683,7 +2684,7 @@ gboolean GtkSalFrame::signalScroll(GtkWidget*, GdkEventScroll* pEvent, gpointer
aEvent.mnNotchDelta = -1;
aEvent.mnScrollLines = 3;
aEvent.mbHorz = false;
- pThis->CallCallback(SalEvent::WheelMouse, &aEvent);
+ pThis->CallCallbackExc(SalEvent::WheelMouse, &aEvent);
break;
case GDK_SCROLL_LEFT:
@@ -2691,7 +2692,7 @@ gboolean GtkSalFrame::signalScroll(GtkWidget*, GdkEventScroll* pEvent, gpointer
aEvent.mnNotchDelta = 1;
aEvent.mnScrollLines = 3;
aEvent.mbHorz = true;
- pThis->CallCallback(SalEvent::WheelMouse, &aEvent);
+ pThis->CallCallbackExc(SalEvent::WheelMouse, &aEvent);
break;
case GDK_SCROLL_RIGHT:
@@ -2699,7 +2700,7 @@ gboolean GtkSalFrame::signalScroll(GtkWidget*, GdkEventScroll* pEvent, gpointer
aEvent.mnNotchDelta = -1;
aEvent.mnScrollLines = 3;
aEvent.mbHorz = true;
- pThis->CallCallback(SalEvent::WheelMouse, &aEvent);
+ pThis->CallCallbackExc(SalEvent::WheelMouse, &aEvent);
break;
}
@@ -2724,7 +2725,7 @@ void GtkSalFrame::gestureSwipe(GtkGestureSwipe* gesture, gdouble velocity_x, gdo
aEvent.mnX = x;
aEvent.mnY = y;
- pThis->CallCallback(SalEvent::Swipe, &aEvent);
+ pThis->CallCallbackExc(SalEvent::Swipe, &aEvent);
}
}
@@ -2742,7 +2743,7 @@ void GtkSalFrame::gestureLongPress(GtkGestureLongPress* gesture, gpointer frame)
aEvent.mnX = x;
aEvent.mnY = y;
- pThis->CallCallback(SalEvent::LongPress, &aEvent);
+ pThis->CallCallbackExc(SalEvent::LongPress, &aEvent);
}
}
@@ -2774,7 +2775,7 @@ gboolean GtkSalFrame::signalMotion( GtkWidget*, GdkEventMotion* pEvent, gpointer
vcl::DeletionListener aDel( pThis );
- pThis->CallCallback( SalEvent::MouseMove, &aEvent );
+ pThis->CallCallbackExc( SalEvent::MouseMove, &aEvent );
if( ! aDel.isDeleted() )
{
@@ -2784,7 +2785,7 @@ gboolean GtkSalFrame::signalMotion( GtkWidget*, GdkEventMotion* pEvent, gpointer
{
pThis->maGeometry.nX = frame_x;
pThis->maGeometry.nY = frame_y;
- pThis->CallCallback( SalEvent::Move, nullptr );
+ pThis->CallCallbackExc( SalEvent::Move, nullptr );
}
if( ! aDel.isDeleted() )
@@ -2811,7 +2812,7 @@ gboolean GtkSalFrame::signalCrossing( GtkWidget*, GdkEventCrossing* pEvent, gpoi
aEvent.mnCode = GetMouseModCode( pEvent->state );
aEvent.mnButton = 0;
- pThis->CallCallback( (pEvent->type == GDK_ENTER_NOTIFY) ? SalEvent::MouseMove : SalEvent::MouseLeave, &aEvent );
+ pThis->CallCallbackExc( (pEvent->type == GDK_ENTER_NOTIFY) ? SalEvent::MouseMove : SalEvent::MouseLeave, &aEvent );
return true;
}
@@ -2858,7 +2859,7 @@ void GtkSalFrame::sizeAllocated(GtkWidget*, GdkRectangle *pAllocation, gpointer
pThis->maGeometry.nWidth = pAllocation->width;
pThis->maGeometry.nHeight = pAllocation->height;
pThis->AllocateFrame();
- pThis->CallCallback( SalEvent::Resize, nullptr );
+ pThis->CallCallbackExc( SalEvent::Resize, nullptr );
pThis->TriggerPaintEvent();
}
@@ -2891,7 +2892,7 @@ gboolean GtkSalFrame::signalConfigure(GtkWidget*, GdkEventConfigure* pEvent, gpo
pThis->updateScreenNumber();
if (bMoved)
- pThis->CallCallback(SalEvent::Move, nullptr);
+ pThis->CallCallbackExc(SalEvent::Move, nullptr);
return false;
}
@@ -2912,7 +2913,7 @@ void GtkSalFrame::TriggerPaintEvent()
//that duplicates the amount of drawing and is hideously slow
SAL_INFO("vcl.gtk3", "force painting" << 0 << "," << 0 << " " << maGeometry.nWidth << "x" << maGeometry.nHeight);
SalPaintEvent aPaintEvt(0, 0, maGeometry.nWidth, maGeometry.nHeight, true);
- CallCallback(SalEvent::Paint, &aPaintEvt);
+ CallCallbackExc(SalEvent::Paint, &aPaintEvt);
gtk_widget_queue_draw(GTK_WIDGET(m_pFixedContainer));
}
@@ -2946,7 +2947,7 @@ gboolean GtkSalFrame::signalFocus( GtkWidget*, GdkEventFocus* pEvent, gpointer f
// in the meantime do not propagate focus get/lose if floats are open
if( m_nFloats == 0 )
- pThis->CallCallback( pEvent->in ? SalEvent::GetFocus : SalEvent::LoseFocus, nullptr );
+ pThis->CallCallbackExc( pEvent->in ? SalEvent::GetFocus : SalEvent::LoseFocus, nullptr );
return false;
}
@@ -2955,7 +2956,7 @@ gboolean GtkSalFrame::signalMap(GtkWidget *, GdkEvent*, gpointer frame)
{
GtkSalFrame* pThis = static_cast<GtkSalFrame*>(frame);
- pThis->CallCallback( SalEvent::Resize, nullptr );
+ pThis->CallCallbackExc( SalEvent::Resize, nullptr );
pThis->TriggerPaintEvent();
return false;
@@ -2965,7 +2966,7 @@ gboolean GtkSalFrame::signalUnmap( GtkWidget*, GdkEvent*, gpointer frame )
{
GtkSalFrame* pThis = static_cast<GtkSalFrame*>(frame);
- pThis->CallCallback( SalEvent::Resize, nullptr );
+ pThis->CallCallbackExc( SalEvent::Resize, nullptr );
return false;
}
@@ -3068,7 +3069,7 @@ gboolean GtkSalFrame::signalKey(GtkWidget* pWidget, GdkEventKey* pEvent, gpointe
aModEvt.mnTime = pEvent->time;
aModEvt.mnModKeyCode = pThis->m_nKeyModifiers;
- pThis->CallCallback( SalEvent::KeyModChange, &aModEvt );
+ pThis->CallCallbackExc( SalEvent::KeyModChange, &aModEvt );
}
else
@@ -3101,7 +3102,7 @@ gboolean GtkSalFrame::signalDelete( GtkWidget*, GdkEvent*, gpointer frame )
if (bBackDrop)
pThis->GetWindow()->Enable();
- pThis->CallCallback( SalEvent::Close, nullptr );
+ pThis->CallCallbackExc( SalEvent::Close, nullptr );
return true;
}
@@ -3545,13 +3546,13 @@ void GtkSalFrame::IMHandler::deleteIMContext()
void GtkSalFrame::IMHandler::doCallEndExtTextInput()
{
m_aInputEvent.mpTextAttr = nullptr;
- m_pFrame->CallCallback( SalEvent::EndExtTextInput, nullptr );
+ m_pFrame->CallCallbackExc( SalEvent::EndExtTextInput, nullptr );
}
void GtkSalFrame::IMHandler::updateIMSpotLocation()
{
SalExtTextInputPosEvent aPosEvent;
- m_pFrame->CallCallback( SalEvent::ExtTextInputPos, static_cast<void*>(&aPosEvent) );
+ m_pFrame->CallCallbackExc( SalEvent::ExtTextInputPos, static_cast<void*>(&aPosEvent) );
GdkRectangle aArea;
aArea.x = aPosEvent.mnX;
aArea.y = aPosEvent.mnY;
@@ -3571,9 +3572,9 @@ void GtkSalFrame::IMHandler::sendEmptyCommit()
aEmptyEv.maText.clear();
aEmptyEv.mnCursorPos = 0;
aEmptyEv.mnCursorFlags = 0;
- m_pFrame->CallCallback( SalEvent::ExtTextInput, static_cast<void*>(&aEmptyEv) );
+ m_pFrame->CallCallbackExc( SalEvent::ExtTextInput, static_cast<void*>(&aEmptyEv) );
if( ! aDel.isDeleted() )
- m_pFrame->CallCallback( SalEvent::EndExtTextInput, nullptr );
+ m_pFrame->CallCallbackExc( SalEvent::EndExtTextInput, nullptr );
}
void GtkSalFrame::IMHandler::endExtTextInput( EndExtTextInputFlags /*nFlags*/ )
@@ -3788,7 +3789,7 @@ void GtkSalFrame::IMHandler::signalIMCommit( GtkIMContext* /*pContext*/, gchar*
}
if( ! bSingleCommit )
{
- pThis->m_pFrame->CallCallback( SalEvent::ExtTextInput, static_cast<void*>(&pThis->m_aInputEvent));
+ pThis->m_pFrame->CallCallbackExc( SalEvent::ExtTextInput, static_cast<void*>(&pThis->m_aInputEvent));
if( ! aDel.isDeleted() )
pThis->doCallEndExtTextInput();
}
@@ -3902,7 +3903,7 @@ void GtkSalFrame::IMHandler::signalIMPreeditChanged( GtkIMContext*, gpointer im_
SolarMutexGuard aGuard;
vcl::DeletionListener aDel( pThis->m_pFrame );
- pThis->m_pFrame->CallCallback( SalEvent::ExtTextInput, static_cast<void*>(&pThis->m_aInputEvent));
+ pThis->m_pFrame->CallCallbackExc( SalEvent::ExtTextInput, static_cast<void*>(&pThis->m_aInputEvent));
if( bEndPreedit && ! aDel.isDeleted() )
pThis->doCallEndExtTextInput();
if( ! aDel.isDeleted() )
@@ -4210,5 +4211,19 @@ void GtkSalFrame::signalDragDataGet(GtkWidget* /*widget*/, GdkDragContext* /*con
pThis->m_pDragSource->dragDataGet(data, info);
}
+long GtkSalFrame::CallCallbackExc(SalEvent nEvent, const void* pEvent) const
+{
+ long nRet = 0;
+ try
+ {
+ nRet = CallCallback(nEvent, pEvent);
+ }
+ catch (const css::uno::Exception&)
+ {
+ GtkData *pSalData = static_cast<GtkData*>(GetSalData());
+ pSalData->setException(::cppu::getCaughtException());
+ }
+ return nRet;
+}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
--
2.9.3
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