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wayland/xdnd: Add error traps around Xdnd* IPC

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Make all of them spew criticals, except for XdndLeave as it's feasible
to expect the window we are sending the event to did disappear in the
way (eg. if the window is destroyed while the DnD operation is ongoing
and the pointer is over the window).

Fixes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2590

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1184
This commit is contained in:
Carlos Garnacho 2020-04-07 19:16:16 +02:00
parent 83553e3f6e
commit db164bcfa2
1 changed files with 24 additions and 0 deletions
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24
src/wayland/meta-xwayland-dnd.c
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@ -145,6 +145,8 @@ xdnd_send_enter (MetaXWaylandDnd *dnd,
gchar **p;
struct wl_array *source_mime_types;
meta_x11_error_trap_push (x11_display);
data_source = compositor->seat->data_device.dnd_data_source;
xev.xclient.type = ClientMessage;
xev.xclient.message_type = xdnd_atoms[ATOM_DND_ENTER];
@ -189,6 +191,9 @@ xdnd_send_enter (MetaXWaylandDnd *dnd,
}
XSendEvent (xdisplay, dest, False, NoEventMask, &xev);
if (meta_x11_error_trap_pop_with_return (x11_display) != Success)
g_critical ("Error sending XdndEnter");
}
static void
@ -205,7 +210,9 @@ xdnd_send_leave (MetaXWaylandDnd *dnd,
xev.xclient.window = dest;
xev.xclient.data.l[0] = x11_display->selection.xwindow;
meta_x11_error_trap_push (x11_display);
XSendEvent (xdisplay, dest, False, NoEventMask, &xev);
meta_x11_error_trap_pop (x11_display);
}
static void
@ -241,7 +248,11 @@ xdnd_send_position (MetaXWaylandDnd *dnd,
xev.xclient.data.l[3] = time;
xev.xclient.data.l[4] = action_to_atom (action);
meta_x11_error_trap_push (x11_display);
XSendEvent (xdisplay, dest, False, NoEventMask, &xev);
if (meta_x11_error_trap_pop_with_return (x11_display) != Success)
g_critical ("Error sending XdndPosition");
}
static void
@ -261,7 +272,11 @@ xdnd_send_drop (MetaXWaylandDnd *dnd,
xev.xclient.data.l[0] = x11_display->selection.xwindow;
xev.xclient.data.l[2] = time;
meta_x11_error_trap_push (x11_display);
XSendEvent (xdisplay, dest, False, NoEventMask, &xev);
if (meta_x11_error_trap_pop_with_return (x11_display) != Success)
g_critical ("Error sending XdndDrop");
}
static void
@ -289,7 +304,11 @@ xdnd_send_finished (MetaXWaylandDnd *dnd,
xev.xclient.data.l[2] = action_to_atom (action);
}
meta_x11_error_trap_push (x11_display);
XSendEvent (xdisplay, dest, False, NoEventMask, &xev);
if (meta_x11_error_trap_pop_with_return (x11_display) != Success)
g_critical ("Error sending XdndFinished");
}
static void
@ -297,6 +316,7 @@ xdnd_send_status (MetaXWaylandDnd *dnd,
Window dest,
uint32_t action)
{
MetaX11Display *x11_display = meta_get_display ()->x11_display;
Display *xdisplay = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
XEvent xev = { 0 };
@ -312,7 +332,11 @@ xdnd_send_status (MetaXWaylandDnd *dnd,
if (xev.xclient.data.l[4])
xev.xclient.data.l[1] |= 1 << 0; /* Bit 1: dest accepts the drop */
meta_x11_error_trap_push (x11_display);
XSendEvent (xdisplay, dest, False, NoEventMask, &xev);
if (meta_x11_error_trap_pop_with_return (x11_display) != Success)
g_critical ("Error sending Xdndstatus");
}
static void