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mir: fix issues with mouse over parent menu

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Mouse over a parent menu[bar] didn't work while the menu was open.
The fix was to correct the behaviour of pointer crossing events so that
the pointer appears to be only inside one window at a time.

See: http://tronche.com/gui/x/xlib/events/window-entry-exit/normal.html
This commit is contained in:
William Hua 2015-01-08 00:24:42 -05:00
parent 6a3904cf0c
commit 5eacc92ba7
3 changed files with 130 additions and 28 deletions
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12
gdk/mir/gdkmir-private.h
View File

@ -133,4 +133,16 @@ void _gdk_mir_print_resize_event (const MirResizeEvent *event);
void _gdk_mir_print_event (const MirEvent *event);
/* TODO: Remove once we have proper transient window support. */
GdkWindow * _gdk_mir_window_get_visible_transient_child (GdkWindow *window,
gdouble x,
gdouble y,
gdouble *out_x,
gdouble *out_y);
/* TODO: Remove once we have proper transient window support. */
void _gdk_mir_window_transient_children_foreach (GdkWindow *window,
void (*func) (GdkWindow *, gpointer),
gpointer user_data);
#endif /* __GDK_PRIVATE_MIR_H__ */

144
gdk/mir/gdkmireventsource.c
View File

@ -292,6 +292,47 @@ handle_key_event (GdkWindow *window, const MirKeyEvent *event)
}
}
/* TODO: Remove once we have proper transient window support. */
typedef struct
{
GdkWindow *except;
gdouble x;
gdouble y;
guint32 time;
} LeaveInfo;
/* TODO: Remove once we have proper transient window support. */
/*
* leave_windows_except:
*
* Generate a leave event for every window except the one the cursor is in.
*/
static void
leave_windows_except (GdkWindow *window,
gpointer user_data)
{
LeaveInfo info = *((LeaveInfo *) user_data);
info.x -= window->x;
info.y -= window->y;
_gdk_mir_window_transient_children_foreach (window, leave_windows_except, &info);
if (window != info.except)
{
GdkMirWindowImpl *impl = GDK_MIR_WINDOW_IMPL (window->impl);
gboolean cursor_inside;
MirMotionButton button_state;
_gdk_mir_window_impl_get_cursor_state (impl, NULL, NULL, &cursor_inside, &button_state);
if (cursor_inside)
generate_crossing_event (window, GDK_LEAVE_NOTIFY, info.x, info.y, info.time);
_gdk_mir_window_impl_set_cursor_state (impl, info.x, info.y, FALSE, button_state);
}
}
static void
handle_motion_event (GdkWindow *window, const MirMotionEvent *event)
{
@ -313,36 +354,85 @@ handle_motion_event (GdkWindow *window, const MirMotionEvent *event)
modifier_state = get_modifier_state (event->modifiers, event->button_state);
event_time = NANO_TO_MILLI (event->event_time);
/* Update which window has focus */
_gdk_mir_pointer_set_location (get_pointer (window), x, y, window, modifier_state);
switch (event->action)
/* TODO: Remove once we have proper transient window support. */
if (event->action == mir_motion_action_hover_exit)
{
case mir_motion_action_down:
case mir_motion_action_up:
event_type = event->action == mir_motion_action_down ? GDK_BUTTON_PRESS : GDK_BUTTON_RELEASE;
changed_button_state = button_state ^ event->button_state;
if (changed_button_state == 0 || (changed_button_state & mir_motion_button_primary) != 0)
generate_button_event (window, event_type, x, y, GDK_BUTTON_PRIMARY, modifier_state, event_time);
if ((changed_button_state & mir_motion_button_secondary) != 0)
generate_button_event (window, event_type, x, y, GDK_BUTTON_SECONDARY, modifier_state, event_time);
if ((changed_button_state & mir_motion_button_tertiary) != 0)
generate_button_event (window, event_type, x, y, GDK_BUTTON_MIDDLE, modifier_state, event_time);
button_state = event->button_state;
break;
case mir_motion_action_scroll:
generate_scroll_event (window, x, y, event->pointer_coordinates[0].hscroll, event->pointer_coordinates[0].vscroll, modifier_state, event_time);
break;
case mir_motion_action_move: // move with button
case mir_motion_action_hover_move: // move without button
generate_motion_event (window, x, y, modifier_state, event_time);
break;
case mir_motion_action_hover_exit:
cursor_inside = FALSE;
generate_crossing_event (window, GDK_LEAVE_NOTIFY, x, y, event_time);
break;
LeaveInfo info;
info.x = x;
info.y = y;
info.time = event_time;
info.except = window;
/* Leave all transient children from leaf to root, except the root since we do it later. */
_gdk_mir_window_transient_children_foreach (window, leave_windows_except, &info);
}
else
{
LeaveInfo info;
info.x = x;
info.y = y;
info.time = event_time;
info.except = _gdk_mir_window_get_visible_transient_child (window, x, y, &x, &y);
/* Leave all transient children from leaf to root, except the pointer window since we enter it. */
_gdk_mir_window_transient_children_foreach (window, leave_windows_except, &info);
window = info.except;
if (window)
{
/* Enter the pointer window. */
gboolean cursor_inside_pointer_window;
impl = GDK_MIR_WINDOW_IMPL (window->impl);
_gdk_mir_window_impl_get_cursor_state (impl, NULL, NULL, &cursor_inside_pointer_window, NULL);
if (!cursor_inside_pointer_window)
{
generate_crossing_event (window, GDK_ENTER_NOTIFY, x, y, event_time);
_gdk_mir_window_impl_set_cursor_state (impl, x, y, TRUE, event->button_state);
}
}
}
_gdk_mir_window_impl_set_cursor_state (impl, x, y, cursor_inside, button_state);
if (window)
{
/* Update which window has focus */
_gdk_mir_pointer_set_location (get_pointer (window), x, y, window, modifier_state);
switch (event->action)
{
case mir_motion_action_down:
case mir_motion_action_up:
event_type = event->action == mir_motion_action_down ? GDK_BUTTON_PRESS : GDK_BUTTON_RELEASE;
changed_button_state = button_state ^ event->button_state;
if (changed_button_state == 0 || (changed_button_state & mir_motion_button_primary) != 0)
generate_button_event (window, event_type, x, y, GDK_BUTTON_PRIMARY, modifier_state, event_time);
if ((changed_button_state & mir_motion_button_secondary) != 0)
generate_button_event (window, event_type, x, y, GDK_BUTTON_SECONDARY, modifier_state, event_time);
if ((changed_button_state & mir_motion_button_tertiary) != 0)
generate_button_event (window, event_type, x, y, GDK_BUTTON_MIDDLE, modifier_state, event_time);
button_state = event->button_state;
break;
case mir_motion_action_scroll:
generate_scroll_event (window, x, y, event->pointer_coordinates[0].hscroll, event->pointer_coordinates[0].vscroll, modifier_state, event_time);
break;
case mir_motion_action_move: // move with button
case mir_motion_action_hover_move: // move without button
generate_motion_event (window, x, y, modifier_state, event_time);
break;
case mir_motion_action_hover_exit:
if (cursor_inside)
{
cursor_inside = FALSE;
generate_crossing_event (window, GDK_LEAVE_NOTIFY, x, y, event_time);
}
break;
}
_gdk_mir_window_impl_set_cursor_state (impl, x, y, cursor_inside, button_state);
}
}
static void

2
gdk/mir/gdkmirwindowimpl.c
View File

@ -288,7 +288,7 @@ redraw_transient (GdkWindow *window)
gdk_window_invalidate_rect (GDK_MIR_WINDOW_IMPL (window->impl)->transient_for, &r, FALSE);
}
/* Remove once we have proper transient window support. */
/* TODO: Remove once we have proper transient window support. */
static gboolean
should_render_in_parent (GdkWindow *window)
{