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gtkstylecontext: guard against gtk_css_widget_node_get_widget() returning NULL in more places

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When the widget gets finalized it clears the widgetnode and gtk_css_widget_node_get_widget
returns NULL. Guard against gtk_css_widget_node_get_widget() returning NULL like in other
places.

See https://gitlab.gnome.org/GNOME/pygobject/issues/28#note_82862
This commit is contained in:
Christoph Reiter 2018-03-19 18:21:25 +01:00
parent 1d26879fa5
commit f440c48dea
1 changed files with 5 additions and 1 deletions
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6
gtk/gtkstylecontext.c
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@ -170,7 +170,11 @@ gtk_style_context_real_changed (GtkStyleContext *context)
GtkStyleContextPrivate *priv = gtk_style_context_get_instance_private (context);
if (GTK_IS_CSS_WIDGET_NODE (priv->cssnode))
_gtk_widget_style_context_invalidated (gtk_css_widget_node_get_widget (GTK_CSS_WIDGET_NODE (priv->cssnode)));
{
GtkWidget *widget = gtk_css_widget_node_get_widget (GTK_CSS_WIDGET_NODE (priv->cssnode));
if (widget != NULL)
_gtk_widget_style_context_invalidated (widget);
}
}
static void