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aboutdialog: Update link colors on css changes

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This commit is contained in:
Alice Mikhaylenko 2024-06-14 00:56:29 +04:00
parent 9fcf55571e
commit ef5e3fae64
1 changed files with 61 additions and 1 deletions
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62
gtk/gtkaboutdialog.c
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@ -201,6 +201,10 @@ struct _GtkAboutDialog
guint hovering_over_link : 1;
guint wrap_license : 1;
guint in_child_changed : 1;
GSList *link_tags;
guint update_links_cb_id;
};
struct _GtkAboutDialogClass
@ -706,6 +710,51 @@ update_credits_button_visibility (GtkAboutDialog *about)
update_stack_switcher_visibility (about);
}
static void
update_links_cb (GtkAboutDialog *about)
{
GtkCssStyle *style;
GdkRGBA link_color, visited_link_color;
GSList *l;
style = gtk_css_node_get_style (about->link_node);
link_color = *gtk_css_color_value_get_rgba (style->core->color);
style = gtk_css_node_get_style (about->visited_link_node);
visited_link_color = *gtk_css_color_value_get_rgba (style->core->color);
for (l = about->link_tags; l != NULL; l = l->next)
{
GtkTextTag *tag = l->data;
GdkRGBA color;
if (g_ptr_array_find_with_equal_func (about->visited_links, link, (GCompareFunc)strcmp, NULL))
color = visited_link_color;
else
color = link_color;
g_object_set (G_OBJECT (tag), "foreground-rgba", &color, NULL);
}
about->update_links_cb_id = 0;
}
static void
link_style_changed_cb (GtkCssNode *node,
GtkCssStyleChange *change,
GtkAboutDialog *about)
{
if (gtk_css_style_change_affects (change, GTK_CSS_AFFECTS_REDRAW))
{
/* If we access the node right here, we'll end up with infinite recursion */
if (about->link_tags && !about->update_links_cb_id)
{
about->update_links_cb_id =
g_idle_add_once ((GSourceOnceFunc) update_links_cb, about);
}
}
}
static void
gtk_about_dialog_init (GtkAboutDialog *about)
{
@ -748,12 +797,16 @@ gtk_about_dialog_init (GtkAboutDialog *about)
gtk_css_node_set_name (about->link_node, g_quark_from_static_string ("link"));
gtk_css_node_set_parent (about->link_node, node);
gtk_css_node_set_state (about->link_node, state | GTK_STATE_FLAG_LINK);
g_signal_connect (about->link_node, "style-changed",
G_CALLBACK (link_style_changed_cb), about);
g_object_unref (about->link_node);
about->visited_link_node = gtk_css_node_new ();
gtk_css_node_set_name (about->visited_link_node, g_quark_from_static_string ("link"));
gtk_css_node_set_parent (about->visited_link_node, node);
gtk_css_node_set_state (about->visited_link_node, state | GTK_STATE_FLAG_VISITED);
gtk_css_node_set_state (about->visited_link_node, state | GTK_STATE_FLAG_LINK);
g_signal_connect (about->visited_link_node, "style-changed",
G_CALLBACK (link_style_changed_cb), about);
g_object_unref (about->visited_link_node);
}
@ -788,6 +841,10 @@ gtk_about_dialog_finalize (GObject *object)
g_slist_free_full (about->credit_sections, destroy_credit_section);
g_ptr_array_unref (about->visited_links);
g_slist_free (about->link_tags);
g_clear_handle_id (&about->update_links_cb_id, g_source_remove);
G_OBJECT_CLASS (gtk_about_dialog_parent_class)->finalize (object);
}
@ -1910,6 +1967,9 @@ text_buffer_new (GtkAboutDialog *about,
"foreground-rgba", &color,
"underline", PANGO_UNDERLINE_SINGLE,
NULL);
about->link_tags = g_slist_prepend (about->link_tags, tag);
if (strcmp (link_type, "email") == 0)
{
char *escaped;