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/*
* SPDX-FileCopyrightText: 2020 Mikhail Zolotukhin <zomial@protonmail.com>
*
* SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
*/
#include <gdk/gdk.h>
#include <gio/gio.h>
#include <glib.h>
#include <gtk/gtk.h>
#define UNUSED(x) (void)(x)
gchar *window_decorations_css_path;
GFile *window_decorations_css_file;
GFileMonitor *window_decorations_css_monitor;
GtkCssProvider *css_provider;
void manage_css_provider(GFileMonitor *monitor, GFile *file, GFile *other_file, GFileMonitorEvent event_type, gpointer user_data);
void reload_css_provider();
void remove_css_provider();
int theme_is_breeze();
void theme_changed(GtkSettings *settings, GParamSpec *param_spec, void *user_data);
__attribute__((visibility("default"))) void gtk_module_init(gint *argc, gchar ***argv[])
{
UNUSED(argc);
UNUSED(argv);
window_decorations_css_path = g_strconcat(g_get_user_config_dir(), "/gtk-3.0/window_decorations.css", NULL);
window_decorations_css_file = g_file_new_for_path(window_decorations_css_path);
window_decorations_css_monitor = g_file_monitor_file(window_decorations_css_file, G_FILE_MONITOR_NONE, NULL, NULL);
css_provider = NULL;
g_signal_connect(window_decorations_css_monitor, "changed", G_CALLBACK(manage_css_provider), NULL);
g_signal_connect(gtk_settings_get_default(), "notify::gtk-theme-name", G_CALLBACK(theme_changed), NULL);
reload_css_provider();
}
void manage_css_provider(GFileMonitor *monitor, GFile *file, GFile *other_file, GFileMonitorEvent event_type, gpointer user_data)
{
UNUSED(monitor);
UNUSED(file);
UNUSED(other_file);
UNUSED(user_data);
if (event_type == G_FILE_MONITOR_EVENT_CREATED || event_type == G_FILE_MONITOR_EVENT_CHANGED) {
reload_css_provider();
} else if (event_type == G_FILE_MONITOR_EVENT_DELETED) {
remove_css_provider();
}
}
void reload_css_provider()
{
remove_css_provider();
if (!theme_is_breeze()) {
return;
}
css_provider = gtk_css_provider_new();
gtk_style_context_add_provider_for_screen(gdk_screen_get_default(), GTK_STYLE_PROVIDER(css_provider), GTK_STYLE_PROVIDER_PRIORITY_USER + 1);
if (g_file_query_exists(window_decorations_css_file, NULL)) {
gtk_css_provider_load_from_file(css_provider, window_decorations_css_file, NULL);
}
}
void remove_css_provider()
{
if (!css_provider) {
return;
}
gtk_style_context_remove_provider_for_screen(gdk_screen_get_default(), GTK_STYLE_PROVIDER(css_provider));
g_clear_object(&css_provider);
}
int theme_is_breeze()
{
GtkSettings *settings = gtk_settings_get_default();
char *theme_name = NULL;
g_object_get(settings, "gtk-theme-name", &theme_name, NULL);
if (!theme_name) {
return 0;
}
int ret = !strcmp(theme_name, "Breeze");
g_free(theme_name);
return ret;
}
void theme_changed(GtkSettings *settings, GParamSpec *param_spec, void *user_data)
{
UNUSED(settings);
UNUSED(param_spec);
UNUSED(user_data);
reload_css_provider();
}
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