158 lines
3.5 KiB
C
158 lines
3.5 KiB
C
#include <glib.h>
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#include <gmodule.h>
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typedef void (*PluginSetupConfig)();
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typedef void (*PluginStartup)();
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typedef void (*PluginShutdown)();
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typedef struct {
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GModule *module;
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char *name;
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PluginSetupConfig config;
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PluginStartup startup;
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PluginShutdown shutdown;
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} Plugin;
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static gpointer load_sym(GModule *module, char *name, char *symbol)
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{
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gpointer var;
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if (!g_module_symbol(module, symbol, &var)) {
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g_warning("Failed to load symbol '%s' from plugin '%s'",
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symbol, name);
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var = NULL;
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}
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return var;
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}
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static Plugin *plugin_new(char *name)
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{
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Plugin *p;
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char *path;
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p = g_new(Plugin, 1);
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path = g_build_filename(g_get_home_dir(), ".openbox", "plugins", name,
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NULL);
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p->module = g_module_open(path, 0);
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g_free(path);
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if (p->module == NULL) {
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path = g_build_filename(PLUGINDIR, name, NULL);
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p->module = g_module_open(path, 0);
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g_free(path);
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}
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if (p->module == NULL) {
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g_warning(g_module_error());
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g_free(p);
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return NULL;
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}
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p->config = (PluginSetupConfig)load_sym(p->module, name,
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"plugin_setup_config");
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p->startup = (PluginStartup)load_sym(p->module, name, "plugin_startup");
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p->shutdown = (PluginShutdown)load_sym(p->module, name, "plugin_shutdown");
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if (p->config == NULL || p->startup == NULL || p->shutdown == NULL) {
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g_module_close(p->module);
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g_free(p);
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return NULL;
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}
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p->name = g_strdup(name);
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return p;
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}
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static void plugin_free(Plugin *p)
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{
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p->shutdown();
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g_free(p->name);
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g_module_close(p->module);
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}
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static GData *plugins = NULL;
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void plugin_startup()
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{
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g_datalist_init(&plugins);
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}
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void plugin_shutdown()
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{
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g_datalist_clear(&plugins);
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}
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gboolean plugin_open(char *name)
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{
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Plugin *p;
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if (g_datalist_get_data(&plugins, name) != NULL) {
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g_warning("plugin '%s' already loaded, can't load again", name);
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return TRUE;
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}
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p = plugin_new(name);
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if (p == NULL) {
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g_warning("failed to load plugin '%s'", name);
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return FALSE;
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}
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p->config();
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g_datalist_set_data_full(&plugins, name, p, (GDestroyNotify) plugin_free);
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return TRUE;
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}
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void plugin_close(char *name)
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{
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g_datalist_remove_data(&plugins, name);
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}
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static void foreach_start(GQuark key, Plugin *p, gpointer *foo)
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{
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p->startup();
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}
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void plugin_startall()
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{
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g_datalist_foreach(&plugins, (GDataForeachFunc)foreach_start, NULL);
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}
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void plugin_loadall()
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{
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GIOChannel *io;
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GError *err;
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char *path, *name;
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path = g_build_filename(g_get_home_dir(), ".openbox", "pluginrc", NULL);
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err = NULL;
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io = g_io_channel_new_file(path, "r", &err);
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g_free(path);
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if (io == NULL) {
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path = g_build_filename(RCDIR, "pluginrc", NULL);
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err = NULL;
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io = g_io_channel_new_file(path, "r", &err);
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g_free(path);
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}
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if (io == NULL) {
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/* load the default plugins */
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plugin_open("focus");
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plugin_open("keyboard");
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plugin_open("mouse");
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plugin_open("placement");
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plugin_open("resistance");
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} else {
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/* load the plugins in the rc file */
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while (g_io_channel_read_line(io, &name, NULL, NULL, &err) ==
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G_IO_STATUS_NORMAL) {
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g_strstrip(name);
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plugin_open(name);
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g_free(name);
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}
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g_io_channel_unref(io);
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}
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}
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