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author | Matthew Barnes <mbarnes@redhat.com> | 2011-07-11 00:18:15 +0800 |
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committer | Matthew Barnes <mbarnes@redhat.com> | 2011-07-11 00:28:29 +0800 |
commit | 830102ae9fef49bf5f97bae503b069d7731be712 (patch) | |
tree | 5db75affe980066edca8db987ff6e35b1c8b8c38 | |
parent | 4bae40b6d675e0dcb11d55454de64ec393e6ee1a (diff) | |
download | gsoc2013-evolution-830102ae9fef49bf5f97bae503b069d7731be712.tar.gz gsoc2013-evolution-830102ae9fef49bf5f97bae503b069d7731be712.tar.zst gsoc2013-evolution-830102ae9fef49bf5f97bae503b069d7731be712.zip |
Bug 652629 - GnomeCanvas: Disregard synthesized crossing events
synth_crossing() in gtkwidget.c does not set valid pointer coordinates,
but GnomeCanvas relies on these coordinates to figure out what canvas
item the event applies to.
Detect these synthesized GDK_ENTER_NOTIFY and GDK_LEAVE_NOTIFY events
and disregard them.
This was breaking drag-and-drop of EMinicards and probably elsewhere.
-rw-r--r-- | libgnomecanvas/gnome-canvas.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libgnomecanvas/gnome-canvas.c b/libgnomecanvas/gnome-canvas.c index a0ad066f44..cca3df0e56 100644 --- a/libgnomecanvas/gnome-canvas.c +++ b/libgnomecanvas/gnome-canvas.c @@ -2736,6 +2736,13 @@ gnome_canvas_crossing (GtkWidget *widget, GdkEventCrossing *event) if (event->window != bin_window) return FALSE; + /* XXX Detect and disregard synthesized crossing events generated + * by synth_crossing() in gtkwidget.c. The pointer coordinates + * are invalid and pick_current_item() relies on them. */ + if (event->x == 0 && event->y == 0 && + event->x_root == 0 && event->y_root == 0) + return FALSE; + canvas->state = event->state; return pick_current_item (canvas, (GdkEvent *) event); } |