5 #include <dbus/dbus-glib.h>
6 #include <dbus/dbus-glib-lowlevel.h>
7 #include <hal/libhal.h>
10 #include <mce/dbus-names.h>
11 #include <mce/mode-names.h>
13 #define HAL_COND_BUTTONPRESSED "ButtonPressed"
14 #define HAL_BUTTON_POWER "power"
15 #define HAL_INPUTDEV_PATH "/org/freedesktop/Hal/devices/computer_logicaldev_input"
28 static void speak_time(struct app_data *app)
30 struct espeaktime_settings cfg;
31 cfg_read(app->gconf, &cfg);
32 cfg_speak(&cfg, FALSE);
36 static void sig_tklock_mode(DBusGProxy *proxy, const char *mode, gpointer user_data)
38 struct app_data *app = user_data;
39 g_debug("sig_tklock_mode [%s]", mode);
40 app->mode_locked = !strcmp(mode, MCE_TK_LOCKED);
43 static void sig_display_status(DBusGProxy *proxy, const char *status, gpointer user_data)
45 struct app_data *app = user_data;
46 g_debug("sig_display_status [%s]", status);
47 app->display_on = !strcmp(status, MCE_DISPLAY_ON_STRING);
49 /* Double-pressing the button at a normal rate will usually result
50 * in the two ButtonPress events being received before the display_status==on
51 * event. Check here if that's the case.
53 if (app->display_on && app->press_count > 1 && time(NULL) - app->last_press <= 1)
57 static void debug_log(const gchar *log_domain,
58 GLogLevelFlags log_level, const gchar *message, gpointer unused_data)
60 g_print("# %s\n", message);
63 static void power_button(struct app_data *app)
68 if (now - app->last_press > 1)
71 app->last_press = now;
73 g_debug("power button: count=%d", app->press_count);
74 if (app->mode_locked && app->display_on)
79 * Call a method with no input arguments and one string output argument.
80 * Return the allocaed result string on success, NULL on failure.
82 static char *mce_call_getstr(DBusGProxy *proxy, const char *method)
87 if (dbus_g_proxy_call(proxy, method, &err,
89 G_TYPE_STRING, &s, G_TYPE_INVALID))
92 g_error("Couldn't call MCE (%s): %s\n", method, err->message);
97 static gboolean prefill_status(struct app_data *app)
102 mce_req = dbus_g_proxy_new_for_name(app->bus, MCE_SERVICE, MCE_REQUEST_PATH, MCE_REQUEST_IF);
105 mode = mce_call_getstr(mce_req, MCE_TKLOCK_MODE_GET);
106 status = mce_call_getstr(mce_req, MCE_DISPLAY_STATUS_GET);
108 sig_tklock_mode(NULL, mode, app);
110 sig_display_status(NULL, status, app);
113 g_object_unref(mce_req);
115 return mode && status;
118 static void connect_signals(struct app_data *app)
122 mce_sig = dbus_g_proxy_new_for_name(app->bus, MCE_SERVICE, MCE_SIGNAL_PATH, MCE_SIGNAL_IF);
124 dbus_g_proxy_add_signal(mce_sig, MCE_TKLOCK_MODE_SIG, G_TYPE_STRING, G_TYPE_INVALID);
125 dbus_g_proxy_add_signal(mce_sig, MCE_DISPLAY_SIG, G_TYPE_STRING, G_TYPE_INVALID);
126 dbus_g_proxy_connect_signal(mce_sig, MCE_TKLOCK_MODE_SIG, G_CALLBACK(sig_tklock_mode), app, NULL);
127 dbus_g_proxy_connect_signal(mce_sig, MCE_DISPLAY_SIG, G_CALLBACK(sig_display_status), app, NULL);
131 static void device_condition(LibHalContext *ctx,
133 const char *condition_name,
134 const char *condition_detail)
136 g_debug("device_condition: name [%s] detail [%s]",
137 condition_name, condition_detail);
138 if (!strcmp(condition_name, HAL_COND_BUTTONPRESSED) && !strcmp(condition_detail, HAL_BUTTON_POWER)) {
139 struct app_data *app = libhal_ctx_get_user_data(ctx);
145 static gboolean init_hal(struct app_data *app)
149 app->hal = libhal_ctx_new();
151 g_error("Couldn't get a HAL context");
154 libhal_ctx_set_dbus_connection(app->hal,
155 dbus_g_connection_get_connection(app->bus));
156 libhal_ctx_set_device_condition(app->hal, device_condition);
157 libhal_ctx_set_user_data(app->hal, app);
159 dbus_error_init(&err);
160 if (!libhal_ctx_init(app->hal, &err)) {
161 g_error("Couldn't initialize HAL context: %s", err.message);
162 dbus_error_free(&err);
163 libhal_ctx_free(app->hal);
167 if (!libhal_device_add_property_watch(app->hal, HAL_INPUTDEV_PATH, &err)) {
168 g_error("Couldn't add HAL watch: %s", err.message);
169 dbus_error_free(&err);
170 libhal_ctx_free(app->hal);
175 int main(int argc, char *argv[])
181 if (argc > 1 && !strcmp(argv[1], "-v"))
182 g_log_set_handler(G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, debug_log, NULL);
185 memset(&app, 0, sizeof(app));
188 loop = g_main_loop_new(NULL, FALSE);
190 app.bus = dbus_g_bus_get(DBUS_BUS_SYSTEM, &err);
192 g_error("Couldn't get DBUS connection: %s\n", err->message);
197 app.gconf = gconf_client_get_default();
203 if (!prefill_status(&app))
205 connect_signals(&app);
208 g_main_loop_run(loop);
209 dbus_g_connection_unref(app.bus);