change ownership of processor window-proxy

fixes crashes:
* If the Editor-Mixer shows a channel with a plugin that
has been edited in the Mixer, double-clicking the plugin 
will try to bring up a 2nd instance of the plugin-UI.
* When closing Ardour both the Mixer and the Editor-Mixer try to delete the underlying plugin, resulting in a double free.

1 files changed, 9 insertions, 0 deletions

diff --git a/libs/ardour/processor.cc b/libs/ardour/processor.cc
index d571f55688..ca1f71db5a 100644
--- a/libs/ardour/processor.cc
+++ b/libs/ardour/processor.cc
@@ -63,6 +63,7 @@ Processor::Processor(Session& session, const string& name)
 	, _display_to_user (true)
 	, _pre_fader (false)
 	, _ui_pointer (0)
+	, _window_proxy (0)
 	, _owner (0)
 {
 }
@@ -79,6 +80,8 @@ Processor::Processor (const Processor& other)
 	, _display_to_user (true)
 	, _pre_fader (false)
 	, _ui_pointer (0)
+	, _window_proxy (0)
+	, _owner (0)
 {
 }
 
@@ -272,6 +275,12 @@ Processor::set_ui (void* p)
 }
 
 void
+Processor::set_window_proxy (ProcessorWindowProxy* wp)
+{
+	_window_proxy = wp;
+}
+
+void
 Processor::set_owner (SessionObject* o)
 {
 	_owner = o;