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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 92bef46b4c
commit d65a4c2e0a
1 changed files with 7 additions and 2 deletions
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9
gtk/gtkstylecontext.c
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@ -187,7 +187,11 @@ gtk_style_context_real_changed (GtkStyleContext *context)
GtkStyleContextPrivate *priv = context->priv;
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
@ -522,7 +526,8 @@ gtk_style_context_push_state (GtkStyleContext *context,
{
GtkWidget *widget = gtk_css_widget_node_get_widget (GTK_CSS_WIDGET_NODE (root));
g_debug ("State %u for %s %p doesn't match state %u set via gtk_style_context_set_state ()",
state, gtk_widget_get_name (widget), widget, gtk_css_node_get_state (priv->cssnode));
state, (widget == NULL) ? "(null)" : gtk_widget_get_name (widget),
widget, gtk_css_node_get_state (priv->cssnode));
}
else
{