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clutter/text: Emit cursor-changed right after setting cursor position

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ClutterText has a bit of a mess around its signalling of changes to the
cursor position: There's the position (deprecated) and cursor-position
property, and  there's the cursor-changed and cursor-event (deprecated)
signal. The two properties are supposed to be notified when the cursor
position changes, and the two signals are notified when the cursor
position or size changes.

Now the properties notifications and the signals get fired in two very
different places: The two properties are notified in
clutter_text_set_cursor_position(), while the signals are fired during
the paint cycle when we figured out the final cursor position. The
latter is a pretty bad idea, nobody expects such a signal to be fired
during painting, and also changes to the text that are done in the
signal handler will only be applied on the next paint.

Now StEntry listens to cursor position changes via cursor-changed and
invalidates its text shadow, but since the signal is only notified
during the paint, the old text shadow will still get applied. To fix
this, also emit the cursor-changed signal when we notify the
cursor-position property.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1757>
This commit is contained in:
Jonas Dreßler 2021-03-05 16:53:15 +01:00 committed by Marge Bot
parent a6df6796dd
commit ef1f65a013
1 changed files with 2 additions and 0 deletions
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2
clutter/clutter/clutter-text.c
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@ -1416,6 +1416,7 @@ clutter_text_delete_selection (ClutterText *self)
/* XXX:2.0 - remove */
g_object_notify_by_pspec (G_OBJECT (self), obj_props[PROP_POSITION]);
g_object_notify_by_pspec (G_OBJECT (self), obj_props[PROP_CURSOR_POSITION]);
g_signal_emit (self, text_signals[CURSOR_CHANGED], 0);
}
if (priv->selection_bound != old_selection)
@ -6259,6 +6260,7 @@ clutter_text_set_cursor_position (ClutterText *self,
/* XXX:2.0 - remove */
g_object_notify_by_pspec (G_OBJECT (self), obj_props[PROP_POSITION]);
g_object_notify_by_pspec (G_OBJECT (self), obj_props[PROP_CURSOR_POSITION]);
g_signal_emit (self, text_signals[CURSOR_CHANGED], 0);
}
/**