mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2024-12-25 15:06:14 +01:00
b94a2fe66c
Thu Sep 22 12:42:12 2005 Tim Janik <timj@gtk.org>
* gparam.c (g_param_spec_internal): fix pspec->name assignment which
needs to be strdup()ed for non G_PARAM_STATIC_NAME pspecs. this fixes
recently introduced crashes during plugin unloading.
also, ensure that static pspec names are canonicalized.
* gsignal.h: reverted last change from matthias, we don't guarantee
that type ids aren't mangled with G_SIGNAL_TYPE_STATIC_SCOPE anywhere.
271 lines
10 KiB
C
271 lines
10 KiB
C
/* GObject - GLib Type, Object, Parameter and Signal Library
|
|
* Copyright (C) 2000-2001 Red Hat, Inc.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General
|
|
* Public License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
#if !defined (__GLIB_GOBJECT_H_INSIDE__) && !defined (GOBJECT_COMPILATION)
|
|
#error "Only <glib-object.h> can be included directly."
|
|
#endif
|
|
|
|
#ifndef __G_SIGNAL_H__
|
|
#define __G_SIGNAL_H__
|
|
|
|
#include <gobject/gclosure.h>
|
|
#include <gobject/gvalue.h>
|
|
#include <gobject/gparam.h>
|
|
#include <gobject/gmarshal.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/* --- typedefs --- */
|
|
typedef struct _GSignalQuery GSignalQuery;
|
|
typedef struct _GSignalInvocationHint GSignalInvocationHint;
|
|
typedef GClosureMarshal GSignalCMarshaller;
|
|
typedef gboolean (*GSignalEmissionHook) (GSignalInvocationHint *ihint,
|
|
guint n_param_values,
|
|
const GValue *param_values,
|
|
gpointer data);
|
|
typedef gboolean (*GSignalAccumulator) (GSignalInvocationHint *ihint,
|
|
GValue *return_accu,
|
|
const GValue *handler_return,
|
|
gpointer data);
|
|
|
|
|
|
/* --- run, match and connect types --- */
|
|
typedef enum
|
|
{
|
|
G_SIGNAL_RUN_FIRST = 1 << 0,
|
|
G_SIGNAL_RUN_LAST = 1 << 1,
|
|
G_SIGNAL_RUN_CLEANUP = 1 << 2,
|
|
G_SIGNAL_NO_RECURSE = 1 << 3,
|
|
G_SIGNAL_DETAILED = 1 << 4,
|
|
G_SIGNAL_ACTION = 1 << 5,
|
|
G_SIGNAL_NO_HOOKS = 1 << 6
|
|
} GSignalFlags;
|
|
#define G_SIGNAL_FLAGS_MASK 0x7f
|
|
typedef enum
|
|
{
|
|
G_CONNECT_AFTER = 1 << 0,
|
|
G_CONNECT_SWAPPED = 1 << 1
|
|
} GConnectFlags;
|
|
typedef enum
|
|
{
|
|
G_SIGNAL_MATCH_ID = 1 << 0,
|
|
G_SIGNAL_MATCH_DETAIL = 1 << 1,
|
|
G_SIGNAL_MATCH_CLOSURE = 1 << 2,
|
|
G_SIGNAL_MATCH_FUNC = 1 << 3,
|
|
G_SIGNAL_MATCH_DATA = 1 << 4,
|
|
G_SIGNAL_MATCH_UNBLOCKED = 1 << 5
|
|
} GSignalMatchType;
|
|
#define G_SIGNAL_MATCH_MASK 0x3f
|
|
#define G_SIGNAL_TYPE_STATIC_SCOPE (G_TYPE_FLAG_RESERVED_ID_BIT)
|
|
|
|
|
|
/* --- signal information --- */
|
|
struct _GSignalInvocationHint
|
|
{
|
|
guint signal_id;
|
|
GQuark detail;
|
|
GSignalFlags run_type;
|
|
};
|
|
struct _GSignalQuery
|
|
{
|
|
guint signal_id;
|
|
const gchar *signal_name;
|
|
GType itype;
|
|
GSignalFlags signal_flags;
|
|
GType return_type; /* mangled with G_SIGNAL_TYPE_STATIC_SCOPE flag */
|
|
guint n_params;
|
|
const GType *param_types; /* mangled with G_SIGNAL_TYPE_STATIC_SCOPE flag */
|
|
};
|
|
|
|
|
|
/* --- signals --- */
|
|
guint g_signal_newv (const gchar *signal_name,
|
|
GType itype,
|
|
GSignalFlags signal_flags,
|
|
GClosure *class_closure,
|
|
GSignalAccumulator accumulator,
|
|
gpointer accu_data,
|
|
GSignalCMarshaller c_marshaller,
|
|
GType return_type,
|
|
guint n_params,
|
|
GType *param_types);
|
|
guint g_signal_new_valist (const gchar *signal_name,
|
|
GType itype,
|
|
GSignalFlags signal_flags,
|
|
GClosure *class_closure,
|
|
GSignalAccumulator accumulator,
|
|
gpointer accu_data,
|
|
GSignalCMarshaller c_marshaller,
|
|
GType return_type,
|
|
guint n_params,
|
|
va_list args);
|
|
guint g_signal_new (const gchar *signal_name,
|
|
GType itype,
|
|
GSignalFlags signal_flags,
|
|
guint class_offset,
|
|
GSignalAccumulator accumulator,
|
|
gpointer accu_data,
|
|
GSignalCMarshaller c_marshaller,
|
|
GType return_type,
|
|
guint n_params,
|
|
...);
|
|
void g_signal_emitv (const GValue *instance_and_params,
|
|
guint signal_id,
|
|
GQuark detail,
|
|
GValue *return_value);
|
|
void g_signal_emit_valist (gpointer instance,
|
|
guint signal_id,
|
|
GQuark detail,
|
|
va_list var_args);
|
|
void g_signal_emit (gpointer instance,
|
|
guint signal_id,
|
|
GQuark detail,
|
|
...);
|
|
void g_signal_emit_by_name (gpointer instance,
|
|
const gchar *detailed_signal,
|
|
...);
|
|
guint g_signal_lookup (const gchar *name,
|
|
GType itype);
|
|
G_CONST_RETURN gchar* g_signal_name (guint signal_id);
|
|
void g_signal_query (guint signal_id,
|
|
GSignalQuery *query);
|
|
guint* g_signal_list_ids (GType itype,
|
|
guint *n_ids);
|
|
gboolean g_signal_parse_name (const gchar *detailed_signal,
|
|
GType itype,
|
|
guint *signal_id_p,
|
|
GQuark *detail_p,
|
|
gboolean force_detail_quark);
|
|
GSignalInvocationHint* g_signal_get_invocation_hint (gpointer instance);
|
|
|
|
|
|
/* --- signal emissions --- */
|
|
void g_signal_stop_emission (gpointer instance,
|
|
guint signal_id,
|
|
GQuark detail);
|
|
void g_signal_stop_emission_by_name (gpointer instance,
|
|
const gchar *detailed_signal);
|
|
gulong g_signal_add_emission_hook (guint signal_id,
|
|
GQuark detail,
|
|
GSignalEmissionHook hook_func,
|
|
gpointer hook_data,
|
|
GDestroyNotify data_destroy);
|
|
void g_signal_remove_emission_hook (guint signal_id,
|
|
gulong hook_id);
|
|
|
|
|
|
/* --- signal handlers --- */
|
|
gboolean g_signal_has_handler_pending (gpointer instance,
|
|
guint signal_id,
|
|
GQuark detail,
|
|
gboolean may_be_blocked);
|
|
gulong g_signal_connect_closure_by_id (gpointer instance,
|
|
guint signal_id,
|
|
GQuark detail,
|
|
GClosure *closure,
|
|
gboolean after);
|
|
gulong g_signal_connect_closure (gpointer instance,
|
|
const gchar *detailed_signal,
|
|
GClosure *closure,
|
|
gboolean after);
|
|
gulong g_signal_connect_data (gpointer instance,
|
|
const gchar *detailed_signal,
|
|
GCallback c_handler,
|
|
gpointer data,
|
|
GClosureNotify destroy_data,
|
|
GConnectFlags connect_flags);
|
|
void g_signal_handler_block (gpointer instance,
|
|
gulong handler_id);
|
|
void g_signal_handler_unblock (gpointer instance,
|
|
gulong handler_id);
|
|
void g_signal_handler_disconnect (gpointer instance,
|
|
gulong handler_id);
|
|
gboolean g_signal_handler_is_connected (gpointer instance,
|
|
gulong handler_id);
|
|
gulong g_signal_handler_find (gpointer instance,
|
|
GSignalMatchType mask,
|
|
guint signal_id,
|
|
GQuark detail,
|
|
GClosure *closure,
|
|
gpointer func,
|
|
gpointer data);
|
|
guint g_signal_handlers_block_matched (gpointer instance,
|
|
GSignalMatchType mask,
|
|
guint signal_id,
|
|
GQuark detail,
|
|
GClosure *closure,
|
|
gpointer func,
|
|
gpointer data);
|
|
guint g_signal_handlers_unblock_matched (gpointer instance,
|
|
GSignalMatchType mask,
|
|
guint signal_id,
|
|
GQuark detail,
|
|
GClosure *closure,
|
|
gpointer func,
|
|
gpointer data);
|
|
guint g_signal_handlers_disconnect_matched (gpointer instance,
|
|
GSignalMatchType mask,
|
|
guint signal_id,
|
|
GQuark detail,
|
|
GClosure *closure,
|
|
gpointer func,
|
|
gpointer data);
|
|
|
|
|
|
/* --- chaining for language bindings --- */
|
|
void g_signal_override_class_closure (guint signal_id,
|
|
GType instance_type,
|
|
GClosure *class_closure);
|
|
void g_signal_chain_from_overridden (const GValue *instance_and_params,
|
|
GValue *return_value);
|
|
|
|
|
|
/* --- convenience --- */
|
|
#define g_signal_connect(instance, detailed_signal, c_handler, data) \
|
|
g_signal_connect_data ((instance), (detailed_signal), (c_handler), (data), NULL, (GConnectFlags) 0)
|
|
#define g_signal_connect_after(instance, detailed_signal, c_handler, data) \
|
|
g_signal_connect_data ((instance), (detailed_signal), (c_handler), (data), NULL, G_CONNECT_AFTER)
|
|
#define g_signal_connect_swapped(instance, detailed_signal, c_handler, data) \
|
|
g_signal_connect_data ((instance), (detailed_signal), (c_handler), (data), NULL, G_CONNECT_SWAPPED)
|
|
#define g_signal_handlers_disconnect_by_func(instance, func, data) \
|
|
g_signal_handlers_disconnect_matched ((instance), \
|
|
(GSignalMatchType) (G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA), \
|
|
0, 0, NULL, (func), (data))
|
|
#define g_signal_handlers_block_by_func(instance, func, data) \
|
|
g_signal_handlers_block_matched ((instance), \
|
|
(GSignalMatchType) (G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA), \
|
|
0, 0, NULL, (func), (data))
|
|
#define g_signal_handlers_unblock_by_func(instance, func, data) \
|
|
g_signal_handlers_unblock_matched ((instance), \
|
|
(GSignalMatchType) (G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA), \
|
|
0, 0, NULL, (func), (data))
|
|
|
|
|
|
gboolean g_signal_accumulator_true_handled (GSignalInvocationHint *ihint,
|
|
GValue *return_accu,
|
|
const GValue *handler_return,
|
|
gpointer dummy);
|
|
|
|
/*< private >*/
|
|
void g_signal_handlers_destroy (gpointer instance);
|
|
void _g_signals_destroy (GType itype);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __G_SIGNAL_H__ */
|