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Diffstat (limited to 'vcl/aqua/source/dtrans/DragSource.cxx')
-rw-r--r--vcl/aqua/source/dtrans/DragSource.cxx14
1 files changed, 12 insertions, 2 deletions
diff --git a/vcl/aqua/source/dtrans/DragSource.cxx b/vcl/aqua/source/dtrans/DragSource.cxx
index adb247d70711..1a8f950e50d4 100644
--- a/vcl/aqua/source/dtrans/DragSource.cxx
+++ b/vcl/aqua/source/dtrans/DragSource.cxx
@@ -38,6 +38,7 @@
#include "DragSourceContext.hxx"
#include "aqua_clipboard.hxx"
#include "DragActionConversion.hxx"
+#include "salframe.h"
#include <rtl/ustring.h>
#include <memory>
@@ -158,6 +159,7 @@ Sequence<OUString> dragSource_getSupportedServiceNames()
DragSource::DragSource():
WeakComponentImplHelper3<XDragSource, XInitialization, XServiceInfo>(m_aMutex),
mView(NULL),
+ mpFrame(NULL),
mLastMouseEventBeforeStartDrag(nil),
m_MouseButton(0)
{
@@ -166,8 +168,9 @@ DragSource::DragSource():
DragSource::~DragSource()
{
- [(id <MouseEventListener>)mView unregisterMouseEventListener: mDragSourceHelper];
- [mDragSourceHelper release];
+ if( mpFrame && AquaSalFrame::isAlive( mpFrame ) )
+ [(id <MouseEventListener>)mView unregisterMouseEventListener: mDragSourceHelper];
+ [mDragSourceHelper release];
}
@@ -197,6 +200,13 @@ void SAL_CALL DragSource::initialize(const Sequence< Any >& aArguments)
throw Exception(OUString(RTL_CONSTASCII_USTRINGPARAM("DragSource::initialize: Provided view doesn't support mouse listener")),
static_cast<OWeakObject*>(this));
}
+ NSWindow* pWin = [mView window];
+ if( ! pWin || ![pWin respondsToSelector: @selector(getSalFrame)] )
+ {
+ throw Exception(OUString(RTL_CONSTASCII_USTRINGPARAM("DragSource::initialize: Provided view is not attached to a vcl frame")),
+ static_cast<OWeakObject*>(this));
+ }
+ mpFrame = (AquaSalFrame*)[pWin performSelector: @selector(getSalFrame)];
mDragSourceHelper = [[DragSourceHelper alloc] initWithDragSource: this];