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- /**
- * @file plugin.h Plugin API
- * @ingroup core
- *
- * gaim
- *
- * Gaim is the legal property of its developers, whose names are too numerous
- * to list here. Please refer to the COPYRIGHT file distributed with this
- * source distribution.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- #ifndef _GAIM_PLUGIN_H_
- #define _GAIM_PLUGIN_H_
-
- #include <glib/glist.h>
- #include <gmodule.h>
- #include "signals.h"
- #include "value.h"
-
- typedef struct _GaimPlugin GaimPlugin;
- typedef struct _GaimPluginInfo GaimPluginInfo;
- typedef struct _GaimPluginUiInfo GaimPluginUiInfo;
- typedef struct _GaimPluginLoaderInfo GaimPluginLoaderInfo;
-
- typedef struct _GaimPluginAction GaimPluginAction;
-
- typedef int GaimPluginPriority; /**< Plugin priority. */
-
- #include "pluginpref.h"
-
- /**
- * Plugin types.
- */
- typedef enum
- {
- GAIM_PLUGIN_UNKNOWN = -1, /**< Unknown type. */
- GAIM_PLUGIN_STANDARD = 0, /**< Standard plugin. */
- GAIM_PLUGIN_LOADER, /**< Loader plugin. */
- GAIM_PLUGIN_PROTOCOL /**< Protocol plugin. */
-
- } GaimPluginType;
-
- #define GAIM_PRIORITY_DEFAULT 0
- #define GAIM_PRIORITY_HIGHEST 9999
- #define GAIM_PRIORITY_LOWEST -9999
-
- #define GAIM_PLUGIN_FLAG_INVISIBLE 0x01
-
- #define GAIM_PLUGIN_MAGIC 5 /* once we hit 6.0.0, I think we can remove this */
-
- /**
- * Detailed information about a plugin.
- *
- * This is used in the version 2.0 API and up.
- */
- struct _GaimPluginInfo
- {
- unsigned int magic;
- unsigned int major_version;
- unsigned int minor_version;
- GaimPluginType type;
- char *ui_requirement;
- unsigned long flags;
- GList *dependencies;
- GaimPluginPriority priority;
-
- char *id;
- char *name;
- char *version;
- char *summary;
- char *description;
- char *author;
- char *homepage;
-
- gboolean (*load)(GaimPlugin *plugin);
- gboolean (*unload)(GaimPlugin *plugin);
- void (*destroy)(GaimPlugin *plugin);
-
- void *ui_info;
- void *extra_info;
- GaimPluginUiInfo *prefs_info;
- GList *(*actions)(GaimPlugin *plugin, gpointer context);
- };
-
- /**
- * Extra information for loader plugins.
- */
- struct _GaimPluginLoaderInfo
- {
- GList *exts;
-
- gboolean (*probe)(GaimPlugin *plugin);
- gboolean (*load)(GaimPlugin *plugin);
- gboolean (*unload)(GaimPlugin *plugin);
- void (*destroy)(GaimPlugin *plugin);
- };
-
- /**
- * A plugin handle.
- */
- struct _GaimPlugin
- {
- gboolean native_plugin; /**< Native C plugin. */
- gboolean loaded; /**< The loaded state. */
- void *handle; /**< The module handle. */
- char *path; /**< The path to the plugin. */
- GaimPluginInfo *info; /**< The plugin information. */
- char *error;
- void *ipc_data; /**< IPC data. */
- void *extra; /**< Plugin-specific data. */
- };
-
- #define GAIM_PLUGIN_LOADER_INFO(plugin) \
- ((GaimPluginLoaderInfo *)(plugin)->info->extra_info)
-
- struct _GaimPluginUiInfo {
- GaimPluginPrefFrame *(*get_plugin_pref_frame)(GaimPlugin *plugin);
-
- void *iter; /**< Reserved */
- GaimPluginPrefFrame *frame; /**< Reserved */
- };
-
- #define GAIM_PLUGIN_HAS_PREF_FRAME(plugin) \
- ((plugin)->info != NULL && (plugin)->info->prefs_info != NULL)
-
- #define GAIM_PLUGIN_UI_INFO(plugin) \
- ((GaimPluginUiInfo*)(plugin)->info->prefs_info)
-
-
- /**
- * The structure used in the actions member of GaimPluginInfo
- */
- struct _GaimPluginAction {
- char *label;
- void (*callback)(GaimPluginAction *);
-
- /** set to the owning plugin */
- GaimPlugin *plugin;
-
- /** NULL for plugin actions menu, set to the GaimConnection for
- account actions menu */
- gpointer context;
- };
-
- #define GAIM_PLUGIN_HAS_ACTIONS(plugin) \
- ((plugin)->info != NULL && (plugin)->info->actions != NULL)
-
- #define GAIM_PLUGIN_ACTIONS(plugin, context) \
- (GAIM_PLUGIN_HAS_ACTIONS(plugin)? \
- (plugin)->info->actions(plugin, context): NULL)
-
-
- /**
- * Handles the initialization of modules.
- */
- #if !defined(GAIM_PLUGINS) || defined(GAIM_STATIC_PRPL)
- # define GAIM_INIT_PLUGIN(pluginname, initfunc, plugininfo) \
- gboolean gaim_init_##pluginname##_plugin(void) { \
- GaimPlugin *plugin = gaim_plugin_new(TRUE, NULL); \
- plugin->info = &(plugininfo); \
- initfunc((plugin)); \
- return gaim_plugin_register(plugin); \
- }
- #else /* GAIM_PLUGINS && !GAIM_STATIC_PRPL */
- # define GAIM_INIT_PLUGIN(pluginname, initfunc, plugininfo) \
- G_MODULE_EXPORT gboolean gaim_init_plugin(GaimPlugin *plugin) { \
- plugin->info = &(plugininfo); \
- initfunc((plugin)); \
- return gaim_plugin_register(plugin); \
- }
- #endif
-
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
-
- void *gaim_plugins_get_handle(void);
-
-
- /**************************************************************************/
- /** @name Plugin API */
- /**************************************************************************/
- /*@{*/
-
- /**
- * Creates a new plugin structure.
- *
- * @param native Whether or not the plugin is native.
- * @param path The path to the plugin, or @c NULL if statically compiled.
- *
- * @return A new GaimPlugin structure.
- */
- GaimPlugin *gaim_plugin_new(gboolean native, const char *path);
-
- /**
- * Probes a plugin, retrieving the information on it and adding it to the
- * list of available plugins.
- *
- * @param filename The plugin's filename.
- *
- * @return The plugin handle.
- *
- * @see gaim_plugin_load()
- * @see gaim_plugin_destroy()
- */
- GaimPlugin *gaim_plugin_probe(const char *filename);
-
- /**
- * Registers a plugin and prepares it for loading.
- *
- * This shouldn't be called by anything but the internal module code.
- *
- * @param plugin The plugin to register.
- */
- gboolean gaim_plugin_register(GaimPlugin *plugin);
-
- /**
- * Attempts to load a previously probed plugin.
- *
- * @param plugin The plugin to load.
- *
- * @return @c TRUE if successful, or @c FALSE otherwise.
- *
- * @see gaim_plugin_reload()
- * @see gaim_plugin_unload()
- */
- gboolean gaim_plugin_load(GaimPlugin *plugin);
-
- /**
- * Unloads the specified plugin.
- *
- * @param plugin The plugin handle.
- *
- * @return @c TRUE if successful, or @c FALSE otherwise.
- *
- * @see gaim_plugin_load()
- * @see gaim_plugin_reload()
- */
- gboolean gaim_plugin_unload(GaimPlugin *plugin);
-
- /**
- * Reloads a plugin.
- *
- * @param plugin The old plugin handle.
- *
- * @return @c TRUE if successful, or @c FALSE otherwise.
- *
- * @see gaim_plugin_load()
- * @see gaim_plugin_unload()
- */
- gboolean gaim_plugin_reload(GaimPlugin *plugin);
-
- /**
- * Unloads a plugin and destroys the structure from memory.
- *
- * @param plugin The plugin handle.
- */
- void gaim_plugin_destroy(GaimPlugin *plugin);
-
- /**
- * Returns whether or not a plugin is currently loaded.
- *
- * @param plugin The plugin.
- *
- * @return TRUE if loaded, or FALSE otherwise.
- */
- gboolean gaim_plugin_is_loaded(const GaimPlugin *plugin);
-
- /*@}*/
-
- /**************************************************************************/
- /** @name Plugin IPC API */
- /**************************************************************************/
- /*@{*/
-
- /**
- * Registers an IPC command in a plugin.
- *
- * @param plugin The plugin to register the command with.
- * @param command The name of the command.
- * @param func The function to execute.
- * @param marshal The marshalling function.
- * @param ret_value The return value type.
- * @param num_params The number of parameters.
- * @param ... The parameter types.
- *
- * @return TRUE if the function was registered successfully, or
- * FALSE otherwise.
- */
- gboolean gaim_plugin_ipc_register(GaimPlugin *plugin, const char *command,
- GaimCallback func,
- GaimSignalMarshalFunc marshal,
- GaimValue *ret_value, int num_params, ...);
-
- /**
- * Unregisters an IPC command in a plugin.
- *
- * @param plugin The plugin to unregister the command from.
- * @param command The name of the command.
- */
- void gaim_plugin_ipc_unregister(GaimPlugin *plugin, const char *command);
-
- /**
- * Unregisters all IPC commands in a plugin.
- *
- * @param plugin The plugin to unregister the commands from.
- */
- void gaim_plugin_ipc_unregister_all(GaimPlugin *plugin);
-
- /**
- * Returns a list of value types used for an IPC command.
- *
- * @param plugin The plugin.
- * @param command The name of the command.
- * @param ret_value The returned return value.
- * @param num_params The returned number of parameters.
- * @param params The returned list of parameters.
- *
- * @return TRUE if the command was found, or FALSE otherwise.
- */
- gboolean gaim_plugin_ipc_get_params(GaimPlugin *plugin, const char *command,
- GaimValue **ret_value, int *num_params,
- GaimValue ***params);
-
- /**
- * Executes an IPC command.
- *
- * @param plugin The plugin to execute the command on.
- * @param command The name of the command.
- * @param ok TRUE if the call was successful, or FALSE otherwise.
- * @param ... The parameters to pass.
- *
- * @return The return value, which will be NULL if the command doesn't
- * return a value.
- */
- void *gaim_plugin_ipc_call(GaimPlugin *plugin, const char *command,
- gboolean *ok, ...);
-
- /*@}*/
-
- /**************************************************************************/
- /** @name Plugins API */
- /**************************************************************************/
- /*@{*/
-
- /**
- * Sets the search paths for plugins.
- *
- * @param count The number of search paths.
- * @param paths The search paths.
- */
- void gaim_plugins_set_search_paths(size_t count, char **paths);
-
- /**
- * Unloads all loaded plugins.
- */
- void gaim_plugins_unload_all(void);
-
- /**
- * Destroys all registered plugins.
- */
- void gaim_plugins_destroy_all(void);
-
- /**
- * Attempts to load all the plugins in the specified preference key
- * that were loaded when gaim last quit.
- *
- * @param key The preference key containing the list of plugins.
- */
- void gaim_plugins_load_saved(const char *key);
-
- /**
- * Probes for plugins in the registered module paths.
- *
- * @param ext The extension type to probe for, or @c NULL for all.
- *
- * @see gaim_plugin_set_probe_path()
- */
- void gaim_plugins_probe(const char *ext);
-
- /**
- * Returns whether or not plugin support is enabled.
- *
- * @return TRUE if plugin support is enabled, or FALSE otherwise.
- */
- gboolean gaim_plugins_enabled(void);
-
- /**
- * Registers a function that will be called when probing is finished.
- *
- * @param func The callback function.
- * @param data Data to pass to the callback.
- */
- void gaim_plugins_register_probe_notify_cb(void (*func)(void *), void *data);
-
- /**
- * Unregisters a function that would be called when probing is finished.
- *
- * @param func The callback function.
- */
- void gaim_plugins_unregister_probe_notify_cb(void (*func)(void *));
-
- /**
- * Registers a function that will be called when a plugin is loaded.
- *
- * @param func The callback function.
- * @param data Data to pass to the callback.
- */
- void gaim_plugins_register_load_notify_cb(void (*func)(GaimPlugin *, void *),
- void *data);
-
- /**
- * Unregisters a function that would be called when a plugin is loaded.
- *
- * @param func The callback function.
- */
- void gaim_plugins_unregister_load_notify_cb(void (*func)(GaimPlugin *, void *));
-
- /**
- * Registers a function that will be called when a plugin is unloaded.
- *
- * @param func The callback function.
- * @param data Data to pass to the callback.
- */
- void gaim_plugins_register_unload_notify_cb(void (*func)(GaimPlugin *, void *),
- void *data);
-
- /**
- * Unregisters a function that would be called when a plugin is unloaded.
- *
- * @param func The callback function.
- */
- void gaim_plugins_unregister_unload_notify_cb(void (*func)(GaimPlugin *,
- void *));
-
- /**
- * Finds a plugin with the specified name.
- *
- * @param name The plugin name.
- *
- * @return The plugin if found, or @c NULL if not found.
- */
- GaimPlugin *gaim_plugins_find_with_name(const char *name);
-
- /**
- * Finds a plugin with the specified filename (filename with a path).
- *
- * @param filename The plugin filename.
- *
- * @return The plugin if found, or @c NULL if not found.
- */
- GaimPlugin *gaim_plugins_find_with_filename(const char *filename);
-
- /**
- * Finds a plugin with the specified basename (filename without a path).
- *
- * @param basename The plugin basename.
- *
- * @return The plugin if found, or @c NULL if not found.
- */
- GaimPlugin *gaim_plugins_find_with_basename(const char *basename);
-
- /**
- * Finds a plugin with the specified plugin ID.
- *
- * @param id The plugin ID.
- *
- * @return The plugin if found, or @c NULL if not found.
- */
- GaimPlugin *gaim_plugins_find_with_id(const char *id);
-
- /**
- * Returns a list of all loaded plugins.
- *
- * @return A list of all loaded plugins.
- */
- GList *gaim_plugins_get_loaded(void);
-
- /**
- * Returns a list of all protocol plugins.
- *
- * @return A list of all protocol plugins.
- */
- GList *gaim_plugins_get_protocols(void);
-
- /**
- * Returns a list of all plugins, whether loaded or not.
- *
- * @return A list of all plugins.
- */
- GList *gaim_plugins_get_all(void);
-
- /*@}*/
-
-
- /**
- * Allocates and returns a new GaimPluginAction.
- */
- GaimPluginAction *gaim_plugin_action_new(char* label, void (*callback)(GaimPluginAction *));
-
- #ifdef __cplusplus
- }
- #endif
-
- #endif /* _GAIM_PLUGIN_H_ */
-