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Avoid extraneous signals at destroy time

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We need to disconnect the cursor-changed handler before the
treeview gets destroyed, to avoid unwanted emissions.
This commit is contained in:
Matthias Clasen 2011-08-09 02:04:22 +02:00
parent 96f9b67b51
commit 8dbdfa7e73
1 changed files with 41 additions and 17 deletions
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58
gtk/gtkfontchooser.c
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@ -83,7 +83,6 @@ struct _GtkFontChooserPrivate
GtkTreeModel *filter;
GtkWidget *preview;
GtkWidget *preview_scrolled_window;
gchar *preview_text;
gboolean show_preview_entry;
@ -93,6 +92,8 @@ struct _GtkFontChooserPrivate
gint size;
PangoFontFace *face;
PangoFontFamily *family;
gulong cursor_changed_handler;
};
#define DEFAULT_FONT_NAME "Sans 10"
@ -142,6 +143,7 @@ static void gtk_font_chooser_get_property (GObject *object,
GValue *value,
GParamSpec *pspec);
static void gtk_font_chooser_finalize (GObject *object);
static void gtk_font_chooser_dispose (GObject *object);
static void gtk_font_chooser_screen_changed (GtkWidget *widget,
GdkScreen *previous_screen);
@ -165,6 +167,7 @@ gtk_font_chooser_class_init (GtkFontChooserClass *klass)
widget_class->screen_changed = gtk_font_chooser_screen_changed;
widget_class->style_updated = gtk_font_chooser_style_updated;
gobject_class->dispose = gtk_font_chooser_dispose;
gobject_class->finalize = gtk_font_chooser_finalize;
gobject_class->set_property = gtk_font_chooser_set_property;
gobject_class->get_property = gtk_font_chooser_get_property;
@ -642,8 +645,9 @@ gtk_font_chooser_init (GtkFontChooser *fontchooser)
g_signal_connect (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->size_spin)),
"value-changed", G_CALLBACK (spin_change_cb), fontchooser);
g_signal_connect (priv->family_face_list, "cursor-changed",
G_CALLBACK (cursor_changed_cb), fontchooser);
priv->cursor_changed_handler =
g_signal_connect (priv->family_face_list, "cursor-changed",
G_CALLBACK (cursor_changed_cb), fontchooser);
/* Zoom on preview scroll*/
g_signal_connect (priv->preview, "scroll-event",
@ -708,9 +712,14 @@ populate_list (GtkFontChooser *fontchooser,
gint n_families, i;
PangoFontFamily **families;
GString *tmp;
GString *family_and_face;
GString *tmp = g_string_new (NULL);
GString *family_and_face = g_string_new (NULL);
if (!gtk_widget_has_screen (GTK_WIDGET (fontchooser)))
return;
tmp = g_string_new (NULL);
family_and_face = g_string_new (NULL);
pango_context_list_families (gtk_widget_get_pango_context (GTK_WIDGET (treeview)),
&families,
@ -878,6 +887,21 @@ gtk_font_chooser_bootstrap_fontlist (GtkFontChooser *fontchooser)
populate_list (fontchooser, treeview, fontchooser->priv->model);
}
static void
gtk_font_chooser_dispose (GObject *object)
{
GtkFontChooser *fontchooser = GTK_FONT_CHOOSER (object);
GtkFontChooserPrivate *priv = fontchooser->priv;
if (priv->cursor_changed_handler != 0)
{
g_signal_handler_disconnect (priv->family_face_list,
priv->cursor_changed_handler);
priv->cursor_changed_handler = 0;
}
G_OBJECT_CLASS (gtk_font_chooser_parent_class)->dispose (object);
}
static void
gtk_font_chooser_finalize (GObject *object)
@ -890,7 +914,6 @@ gtk_font_chooser_finalize (GObject *object)
G_OBJECT_CLASS (gtk_font_chooser_parent_class)->finalize (object);
}
static void
gtk_font_chooser_screen_changed (GtkWidget *widget,
GdkScreen *previous_screen)
@ -940,11 +963,6 @@ gtk_font_chooser_ref_face (GtkFontChooser *fontchooser,
priv->face = face;
}
/*
* These functions are the main public interface for getting/setting the font.
*/
/**
* gtk_font_chooser_get_family:
* @fontchooser: a #GtkFontChooser
@ -1242,13 +1260,19 @@ void
gtk_font_chooser_set_show_preview_entry (GtkFontChooser *fontchooser,
gboolean show_preview_entry)
{
GtkFontChooserPrivate *priv = fontchooser->priv;
g_return_if_fail (GTK_IS_FONT_CHOOSER (fontchooser));
if (show_preview_entry)
gtk_widget_show (fontchooser->priv->preview_scrolled_window);
else
gtk_widget_hide (fontchooser->priv->preview_scrolled_window);
if (priv->show_preview_entry != show_preview_entry)
{
fontchooser->priv->show_preview_entry = show_preview_entry;
fontchooser->priv->show_preview_entry = show_preview_entry;
g_object_notify (G_OBJECT (fontchooser), "show-preview-entry");
if (show_preview_entry)
gtk_widget_show (fontchooser->priv->preview);
else
gtk_widget_hide (fontchooser->priv->preview);
g_object_notify (G_OBJECT (fontchooser), "show-preview-entry");
}
}