5 #include <dbus/dbus-glib.h>
6 #include <dbus/dbus-glib-lowlevel.h>
7 #include <hal/libhal.h>
9 #include <mce/dbus-names.h>
10 #include <mce/mode-names.h>
12 #define HAL_COND_BUTTONPRESSED "ButtonPressed"
13 #define HAL_BUTTON_POWER "power"
14 #define HAL_INPUTDEV_PATH "/org/freedesktop/Hal/devices/computer_logicaldev_input"
26 static void speak_time(struct app_data *app)
28 int res = system("espeaktime-now.sh");
29 g_debug("speak script: %d", res);
32 static void sig_tklock_mode(DBusGProxy *proxy, const char *mode, gpointer user_data)
34 struct app_data *app = user_data;
35 g_debug("sig_tklock_mode [%s]", mode);
36 app->mode_locked = !strcmp(mode, MCE_TK_LOCKED);
39 static void sig_display_status(DBusGProxy *proxy, const char *status, gpointer user_data)
41 struct app_data *app = user_data;
42 g_debug("sig_display_status [%s]", status);
43 app->display_on = !strcmp(status, MCE_DISPLAY_ON_STRING);
45 /* Double-pressing the button at a normal rate will usually result
46 * in the two ButtonPress events being received before the display_status==on
47 * event. Check here if that's the case.
49 if (app->display_on && app->press_count > 1 && time(NULL) - app->last_press <= 1)
53 static void debug_log(const gchar *log_domain,
54 GLogLevelFlags log_level, const gchar *message, gpointer unused_data)
56 g_print("# %s\n", message);
59 static void power_button(struct app_data *app)
64 if (now - app->last_press > 1)
67 app->last_press = now;
69 g_debug("power button: count=%d", app->press_count);
70 if (app->mode_locked && app->display_on)
75 * Call a method with no input arguments and one string output argument.
76 * Return the allocaed result string on success, NULL on failure.
78 static char *mce_call_getstr(DBusGProxy *proxy, const char *method)
83 if (dbus_g_proxy_call(proxy, method, &err,
85 G_TYPE_STRING, &s, G_TYPE_INVALID))
88 g_error("Couldn't call MCE (%s): %s\n", method, err->message);
93 static gboolean prefill_status(struct app_data *app)
98 mce_req = dbus_g_proxy_new_for_name(app->bus, MCE_SERVICE, MCE_REQUEST_PATH, MCE_REQUEST_IF);
101 mode = mce_call_getstr(mce_req, MCE_TKLOCK_MODE_GET);
102 status = mce_call_getstr(mce_req, MCE_DISPLAY_STATUS_GET);
104 sig_tklock_mode(NULL, mode, app);
106 sig_display_status(NULL, status, app);
109 g_object_unref(mce_req);
111 return mode && status;
114 static void connect_signals(struct app_data *app)
118 mce_sig = dbus_g_proxy_new_for_name(app->bus, MCE_SERVICE, MCE_SIGNAL_PATH, MCE_SIGNAL_IF);
120 dbus_g_proxy_add_signal(mce_sig, MCE_TKLOCK_MODE_SIG, G_TYPE_STRING, G_TYPE_INVALID);
121 dbus_g_proxy_add_signal(mce_sig, MCE_DISPLAY_SIG, G_TYPE_STRING, G_TYPE_INVALID);
122 dbus_g_proxy_connect_signal(mce_sig, MCE_TKLOCK_MODE_SIG, G_CALLBACK(sig_tklock_mode), app, NULL);
123 dbus_g_proxy_connect_signal(mce_sig, MCE_DISPLAY_SIG, G_CALLBACK(sig_display_status), app, NULL);
127 static void device_condition(LibHalContext *ctx,
129 const char *condition_name,
130 const char *condition_detail)
132 g_debug("device_condition: name [%s] detail [%s]",
133 condition_name, condition_detail);
134 if (!strcmp(condition_name, HAL_COND_BUTTONPRESSED) && !strcmp(condition_detail, HAL_BUTTON_POWER)) {
135 struct app_data *app = libhal_ctx_get_user_data(ctx);
141 static gboolean init_hal(struct app_data *app)
145 app->hal = libhal_ctx_new();
147 g_error("Couldn't get a HAL context");
150 libhal_ctx_set_dbus_connection(app->hal,
151 dbus_g_connection_get_connection(app->bus));
152 libhal_ctx_set_device_condition(app->hal, device_condition);
153 libhal_ctx_set_user_data(app->hal, app);
155 dbus_error_init(&err);
156 if (!libhal_ctx_init(app->hal, &err)) {
157 g_error("Couldn't initialize HAL context: %s", err.message);
158 dbus_error_free(&err);
159 libhal_ctx_free(app->hal);
163 if (!libhal_device_add_property_watch(app->hal, HAL_INPUTDEV_PATH, &err)) {
164 g_error("Couldn't add HAL watch: %s", err.message);
165 dbus_error_free(&err);
166 libhal_ctx_free(app->hal);
171 int main(int argc, char *argv[])
177 if (argc > 1 && !strcmp(argv[1], "-v"))
178 g_log_set_handler(G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, debug_log, NULL);
181 memset(&app, 0, sizeof(app));
184 loop = g_main_loop_new(NULL, FALSE);
186 app.bus = dbus_g_bus_get(DBUS_BUS_SYSTEM, &err);
188 g_error("Couldn't get DBUS connection: %s\n", err->message);
196 if (!prefill_status(&app))
198 connect_signals(&app);
201 g_main_loop_run(loop);
202 dbus_g_connection_unref(app.bus);