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- /**
- * @file signals.h Signal 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_SIGNALS_H_
- #define _GAIM_SIGNALS_H_
-
- #include <glib.h>
- #include "value.h"
-
- #define GAIM_CALLBACK(func) ((GaimCallback)func)
-
- typedef void (*GaimCallback)(void);
- typedef void (*GaimSignalMarshalFunc)(GaimCallback cb, va_list args,
- void *data, void **return_val);
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
- /**************************************************************************/
- /** @name Signal API */
- /**************************************************************************/
- /*@{*/
-
- /**
- * Signal Connect Priorities
- */
- #define GAIM_SIGNAL_PRIORITY_DEFAULT 0
- #define GAIM_SIGNAL_PRIORITY_HIGHEST 9999
- #define GAIM_SIGNAL_PRIORITY_LOWEST -9999
-
- /**
- * Registers a signal in an instance.
- *
- * @param instance The instance to register the signal for.
- * @param signal The signal name.
- * @param marshal The marshal function.
- * @param ret_value The return value type, or NULL for no return value.
- * @param num_values The number of values to be passed to the callbacks.
- * @param ... The values to pass to the callbacks.
- *
- * @return The signal ID local to that instance, or 0 if the signal
- * couldn't be registered.
- *
- * @see GaimValue
- */
- gulong gaim_signal_register(void *instance, const char *signal,
- GaimSignalMarshalFunc marshal,
- GaimValue *ret_value, int num_values, ...);
-
- /**
- * Unregisters a signal in an instance.
- *
- * @param instance The instance to unregister the signal for.
- * @param signal The signal name.
- */
- void gaim_signal_unregister(void *instance, const char *signal);
-
- /**
- * Unregisters all signals in an instance.
- *
- * @param instance The instance to unregister the signal for.
- */
- void gaim_signals_unregister_by_instance(void *instance);
-
- /**
- * Returns a list of value types used for a signal.
- *
- * @param instance The instance the signal is registered to.
- * @param signal The signal.
- * @param ret_value The return value from the last signal handler.
- * @param num_values The returned number of values.
- * @param values The returned list of values.
- */
- void gaim_signal_get_values(void *instance, const char *signal,
- GaimValue **ret_value,
- int *num_values, GaimValue ***values);
-
- /**
- * Connects a signal handler to a signal for a particular object.
- *
- * Take care not to register a handler function twice. Gaim will
- * not correct any mistakes for you in this area.
- *
- * @param instance The instance to connect to.
- * @param signal The name of the signal to connect.
- * @param handle The handle of the receiver.
- * @param func The callback function.
- * @param data The data to pass to the callback function.
- * @param priority The order in which the signal should be added to the list
- *
- * @return The signal handler ID.
- *
- * @see gaim_signal_disconnect()
- */
- gulong gaim_signal_connect_priority(void *instance, const char *signal,
- void *handle, GaimCallback func, void *data, int priority);
-
- /**
- * Connects a signal handler to a signal for a particular object.
- * (priority defaults to 0)
- *
- * Take care not to register a handler function twice. Gaim will
- * not correct any mistakes for you in this area.
- *
- * @param instance The instance to connect to.
- * @param signal The name of the signal to connect.
- * @param handle The handle of the receiver.
- * @param func The callback function.
- * @param data The data to pass to the callback function.
- *
- * @return The signal handler ID.
- *
- * @see gaim_signal_disconnect()
- */
- gulong gaim_signal_connect(void *instance, const char *signal,
- void *handle, GaimCallback func, void *data);
-
- /**
- * Connects a signal handler to a signal for a particular object.
- *
- * The signal handler will take a va_args of arguments, instead of
- * individual arguments.
- *
- * Take care not to register a handler function twice. Gaim will
- * not correct any mistakes for you in this area.
- *
- * @param instance The instance to connect to.
- * @param signal The name of the signal to connect.
- * @param handle The handle of the receiver.
- * @param func The callback function.
- * @param data The data to pass to the callback function.
- * @param priority The order in which the signal should be added to the list
- *
- * @return The signal handler ID.
- *
- * @see gaim_signal_disconnect()
- */
- gulong gaim_signal_connect_priority_vargs(void *instance, const char *signal,
- void *handle, GaimCallback func, void *data, int priority);
-
- /**
- * Connects a signal handler to a signal for a particular object.
- * (priority defaults to 0)
- * The signal handler will take a va_args of arguments, instead of
- * individual arguments.
- *
- * Take care not to register a handler function twice. Gaim will
- * not correct any mistakes for you in this area.
- *
- * @param instance The instance to connect to.
- * @param signal The name of the signal to connect.
- * @param handle The handle of the receiver.
- * @param func The callback function.
- * @param data The data to pass to the callback function.
- *
- * @return The signal handler ID.
- *
- * @see gaim_signal_disconnect()
- */
- gulong gaim_signal_connect_vargs(void *instance, const char *signal,
- void *handle, GaimCallback func, void *data);
-
- /**
- * Disconnects a signal handler from a signal on an object.
- *
- * @param instance The instance to disconnect from.
- * @param signal The name of the signal to disconnect.
- * @param handle The handle of the receiver.
- * @param func The registered function to disconnect.
- *
- * @see gaim_signal_connect()
- */
- void gaim_signal_disconnect(void *instance, const char *signal,
- void *handle, GaimCallback func);
-
- /**
- * Removes all callbacks associated with a receiver handle.
- *
- * @param handle The receiver handle.
- */
- void gaim_signals_disconnect_by_handle(void *handle);
-
- /**
- * Emits a signal.
- *
- * @param instance The instance emitting the signal.
- * @param signal The signal being emitted.
- *
- * @see gaim_signal_connect()
- * @see gaim_signal_disconnect()
- */
- void gaim_signal_emit(void *instance, const char *signal, ...);
-
- /**
- * Emits a signal, using a va_list of arguments.
- *
- * @param instance The instance emitting the signal.
- * @param signal The signal being emitted.
- * @param args The arguments list.
- *
- * @see gaim_signal_connect()
- * @see gaim_signal_disconnect()
- */
- void gaim_signal_emit_vargs(void *instance, const char *signal, va_list args);
-
- /**
- * Emits a signal and returns the return value from the last handler.
- *
- * @param instance The instance emitting the signal.
- * @param signal The signal being emitted.
- *
- * @return The return value from the last handler.
- */
- void *gaim_signal_emit_return_1(void *instance, const char *signal, ...);
-
- /**
- * Emits a signal and returns the return value from the last handler.
- *
- * @param instance The instance emitting the signal.
- * @param signal The signal being emitted.
- * @param args The arguments list.
- *
- * @return The return value from the last handler.
- */
- void *gaim_signal_emit_vargs_return_1(void *instance, const char *signal,
- va_list args);
-
- /**
- * Initializes the signals subsystem.
- */
- void gaim_signals_init();
-
- /**
- * Uninitializes the signals subsystem.
- */
- void gaim_signals_uninit();
-
- /*@}*/
-
- /**************************************************************************/
- /** @name Marshal Functions */
- /**************************************************************************/
- /*@{*/
-
- void gaim_marshal_VOID(
- GaimCallback cb, va_list args, void *data, void **return_val);
- void gaim_marshal_VOID__INT(
- GaimCallback cb, va_list args, void *data, void **return_val);
- void gaim_marshal_VOID__INT_INT(
- GaimCallback cb, va_list args, void *data, void **return_val);
- void gaim_marshal_VOID__POINTER(
- GaimCallback cb, va_list args, void *data, void **return_val);
- void gaim_marshal_VOID__POINTER_UINT(
- GaimCallback cb, va_list args, void *data, void **return_val);
- void gaim_marshal_VOID__POINTER_POINTER(
- GaimCallback cb, va_list args, void *data, void **return_val);
- void gaim_marshal_VOID__POINTER_POINTER_UINT(
- GaimCallback cb, va_list args, void *data, void **return_val);
- void gaim_marshal_VOID__POINTER_POINTER_UINT_UINT(
- GaimCallback cb, va_list args, void *data, void **return_val);
- void gaim_marshal_VOID__POINTER_POINTER_POINTER(
- GaimCallback cb, va_list args, void *data, void **return_val);
- void gaim_marshal_VOID__POINTER_POINTER_POINTER_POINTER(
- GaimCallback cb, va_list args, void *data, void **return_val);
- void gaim_marshal_VOID__POINTER_POINTER_POINTER_POINTER_POINTER(
- GaimCallback cb, va_list args, void *data, void **return_val);
- void gaim_marshal_VOID__POINTER_POINTER_POINTER_UINT(
- GaimCallback cb, va_list args, void *data, void **return_val);
- void gaim_marshal_VOID__POINTER_POINTER_POINTER_UINT_UINT(
- GaimCallback cb, va_list args, void *data, void **return_val);
-
- void gaim_marshal_INT__INT(
- GaimCallback cb, va_list args, void *data, void **return_val);
- void gaim_marshal_INT__INT_INT(
- GaimCallback cb, va_list args, void *data, void **return_val);
-
- void gaim_marshal_BOOLEAN__POINTER(
- GaimCallback cb, va_list args, void *data, void **return_val);
- void gaim_marshal_BOOLEAN__POINTER_POINTER(
- GaimCallback cb, va_list args, void *data, void **return_val);
- void gaim_marshal_BOOLEAN__POINTER_POINTER_POINTER(
- GaimCallback cb, va_list args, void *data, void **return_val);
- void gaim_marshal_BOOLEAN__POINTER_POINTER_UINT(
- GaimCallback cb, va_list args, void *data, void **return_val);
- void gaim_marshal_BOOLEAN__POINTER_POINTER_POINTER_UINT(
- GaimCallback cb, va_list args, void *data, void **return_val);
- void gaim_marshal_BOOLEAN__POINTER_POINTER_POINTER_POINTER(
- GaimCallback cb, va_list args, void *data, void **return_val);
- void gaim_marshal_BOOLEAN__POINTER_POINTER_POINTER_POINTER_POINTER(
- GaimCallback cb, va_list args, void *data, void **return_val);
-
- /*@}*/
-
- #ifdef __cplusplus
- }
- #endif
-
- #endif /* _GAIM_SIGNALS_H_ */
-