forked from AuroraMiddleware/gtk
7c30f2a15f
Use common marshalling routines instead of having widget-private ones. It compiles & links. testgtk segfaults. I'm convinced that is Somebody Else's Problem (marshalling routine gets func_data=0x0 and blithely passes it on) but the fact that it happens now & not before makes me wrong :-)
1849 lines
45 KiB
C
1849 lines
45 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <stdarg.h>
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#include <string.h>
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#include <stdio.h>
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#include "gtksignal.h"
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#include "gtkargcollector.c"
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#define SIGNAL_BLOCK_SIZE (100)
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#define HANDLER_BLOCK_SIZE (200)
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#define EMISSION_BLOCK_SIZE (100)
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#define DISCONNECT_INFO_BLOCK_SIZE (64)
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#define MAX_SIGNAL_PARAMS (31)
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enum
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{
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EMISSION_CONTINUE,
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EMISSION_RESTART,
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EMISSION_DONE
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};
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#define GTK_RUN_TYPE(x) ((x) & GTK_RUN_MASK)
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typedef struct _GtkSignal GtkSignal;
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typedef struct _GtkSignalHash GtkSignalHash;
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typedef struct _GtkHandler GtkHandler;
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typedef struct _GtkEmission GtkEmission;
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typedef union _GtkEmissionAllocator GtkEmissionAllocator;
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typedef struct _GtkDisconnectInfo GtkDisconnectInfo;
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typedef void (*GtkSignalMarshaller0) (GtkObject *object,
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gpointer data);
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struct _GtkSignal
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{
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guint signal_id;
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GtkType object_type;
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gchar *name;
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guint function_offset;
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GtkSignalRunType signal_flags;
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GtkSignalMarshaller marshaller;
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GtkType return_val;
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GtkType *params;
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guint nparams;
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};
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struct _GtkSignalHash
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{
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GtkType object_type;
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GQuark quark;
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guint signal_id;
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};
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struct _GtkHandler
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{
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guint id;
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guint blocked : 20;
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guint object_signal : 1;
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guint after : 1;
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guint no_marshal : 1;
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guint16 ref_count;
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guint16 signal_id;
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GtkSignalFunc func;
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gpointer func_data;
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GtkSignalDestroy destroy_func;
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GtkHandler *prev;
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GtkHandler *next;
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};
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struct _GtkEmission
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{
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GtkObject *object;
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guint signal_id;
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};
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union _GtkEmissionAllocator
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{
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GtkEmissionAllocator *next;
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GtkEmission emission;
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};
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struct _GtkDisconnectInfo
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{
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GtkObject *object1;
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guint disconnect_handler1;
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guint signal_handler;
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GtkObject *object2;
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guint disconnect_handler2;
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};
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static guint gtk_signal_hash (gconstpointer h);
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static gint gtk_signal_compare (gconstpointer h1,
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gconstpointer h2);
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static GtkHandler* gtk_signal_handler_new (void);
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static void gtk_signal_handler_ref (GtkHandler *handler);
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static void gtk_signal_handler_unref (GtkHandler *handler,
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GtkObject *object);
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static void gtk_signal_handler_insert (GtkObject *object,
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GtkHandler *handler);
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static void gtk_signal_real_emit (GtkObject *object,
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guint signal_id,
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GtkArg *params);
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static GtkHandler* gtk_signal_get_handlers (GtkObject *object,
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guint signal_type);
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static guint gtk_signal_connect_by_type (GtkObject *object,
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guint signal_id,
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GtkSignalFunc func,
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gpointer func_data,
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GtkSignalDestroy destroy_func,
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gint object_signal,
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gint after,
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gint no_marshal);
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static guint gtk_alive_disconnecter (GtkDisconnectInfo *info);
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static GtkEmission* gtk_emission_new (void);
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static void gtk_emission_add (GList **emissions,
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GtkObject *object,
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guint signal_type);
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static void gtk_emission_remove (GList **emissions,
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GtkObject *object,
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guint signal_type);
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static gint gtk_emission_check (GList *emissions,
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GtkObject *object,
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guint signal_type);
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static gint gtk_handlers_run (GtkHandler *handlers,
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GtkSignal *signal,
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GtkObject *object,
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GtkArg *params,
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gint after);
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static gboolean gtk_signal_collect_params (GtkArg *params,
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guint nparams,
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GtkType *param_types,
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GtkType return_type,
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va_list var_args);
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#define LOOKUP_SIGNAL_ID(signal_id) ( \
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signal_id > 0 && signal_id < gtk_n_signals ? \
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(GtkSignal*) gtk_signals + signal_id : \
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(GtkSignal*) 0 \
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)
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static GtkSignalMarshal global_marshaller = NULL;
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static GtkSignalDestroy global_destroy_notify = NULL;
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static guint gtk_handler_id = 1;
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static guint handler_quark = 0;
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static GHashTable *gtk_signal_hash_table = NULL;
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static GtkSignal *gtk_signals = NULL;
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static guint gtk_n_signals = 0;
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static GMemChunk *gtk_signal_hash_mem_chunk = NULL;
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static GMemChunk *gtk_disconnect_info_mem_chunk = NULL;
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static GtkHandler *gtk_handler_free_list = NULL;
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static GtkEmissionAllocator *gtk_emission_free_list = NULL;
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static GList *current_emissions = NULL;
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static GList *stop_emissions = NULL;
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static GList *restart_emissions = NULL;
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static GtkSignal*
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gtk_signal_next_and_invalidate (void)
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{
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static guint gtk_n_free_signals = 0;
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register GtkSignal *signal;
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register guint new_signal_id;
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/* don't keep *any* GtkSignal pointers across invokation of this function!!!
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*/
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if (gtk_n_free_signals == 0)
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{
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register guint i;
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register guint size;
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/* nearest pow
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*/
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size = gtk_n_signals + SIGNAL_BLOCK_SIZE;
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size *= sizeof (GtkSignal);
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i = 1;
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while (i < size)
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i <<= 1;
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size = i;
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gtk_signals = g_realloc (gtk_signals, size);
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gtk_n_free_signals = size / sizeof (GtkSignal) - gtk_n_signals;
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memset (gtk_signals + gtk_n_signals, 0, gtk_n_free_signals * sizeof (GtkSignal));
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}
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new_signal_id = gtk_n_signals++;
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gtk_n_free_signals--;
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signal = LOOKUP_SIGNAL_ID (new_signal_id);
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if (signal)
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signal->signal_id = new_signal_id;
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return signal;
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}
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void
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gtk_signal_init (void)
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{
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if (!handler_quark)
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{
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GtkSignal *zero;
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zero = gtk_signal_next_and_invalidate ();
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g_assert (zero == NULL);
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handler_quark = g_quark_from_static_string ("gtk-signal-handlers");
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gtk_signal_hash_mem_chunk =
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g_mem_chunk_new ("GtkSignalHash mem chunk",
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sizeof (GtkSignalHash),
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sizeof (GtkSignalHash) * SIGNAL_BLOCK_SIZE,
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G_ALLOC_ONLY);
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gtk_disconnect_info_mem_chunk =
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g_mem_chunk_new ("GtkDisconnectInfo mem chunk",
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sizeof (GtkDisconnectInfo),
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sizeof (GtkDisconnectInfo) * DISCONNECT_INFO_BLOCK_SIZE,
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G_ALLOC_AND_FREE);
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gtk_handler_free_list = NULL;
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gtk_emission_free_list = NULL;
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gtk_signal_hash_table = g_hash_table_new (gtk_signal_hash,
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gtk_signal_compare);
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}
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}
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guint
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gtk_signal_newv (const gchar *r_name,
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GtkSignalRunType signal_flags,
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GtkType object_type,
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guint function_offset,
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GtkSignalMarshaller marshaller,
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GtkType return_val,
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guint nparams,
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GtkType *params)
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{
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GtkSignal *signal;
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GtkSignalHash *hash;
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GQuark quark;
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guint i;
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gchar *name;
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g_return_val_if_fail (r_name != NULL, 0);
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g_return_val_if_fail (marshaller != NULL, 0);
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g_return_val_if_fail (nparams < MAX_SIGNAL_PARAMS, 0);
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if (nparams)
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g_return_val_if_fail (params != NULL, 0);
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if (!handler_quark)
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gtk_signal_init ();
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name = g_strdup (r_name);
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g_strdelimit (name, NULL, '_');
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quark = gtk_signal_lookup (name, object_type);
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if (quark)
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{
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g_warning ("gtk_signal_newv(): signal \"%s\" already exists in the `%s' class ancestry\n",
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r_name,
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gtk_type_name (object_type));
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g_free (name);
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return 0;
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}
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if (return_val != GTK_TYPE_NONE &&
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(signal_flags & GTK_RUN_BOTH) == GTK_RUN_FIRST)
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{
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g_warning ("gtk_signal_newv(): signal \"%s\" with return value `%s' excludes GTK_RUN_LAST",
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name, gtk_type_name (return_val));
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g_free (name);
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return 0;
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}
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signal = gtk_signal_next_and_invalidate ();
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/* signal->signal_id already set */
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signal->object_type = object_type;
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signal->name = name;
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signal->function_offset = function_offset;
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signal->signal_flags = signal_flags;
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signal->marshaller = marshaller;
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signal->return_val = return_val;
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signal->nparams = nparams;
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if (nparams > 0)
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{
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signal->params = g_new (GtkType, nparams);
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for (i = 0; i < nparams; i++)
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signal->params[i] = params[i];
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}
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else
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signal->params = NULL;
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/* insert "signal_name" into hash table
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*/
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hash = g_chunk_new (GtkSignalHash, gtk_signal_hash_mem_chunk);
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hash->object_type = object_type;
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hash->quark = g_quark_from_string (signal->name);
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hash->signal_id = signal->signal_id;
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g_hash_table_insert (gtk_signal_hash_table, hash, GUINT_TO_POINTER (hash->signal_id));
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/* insert "signal-name" into hash table
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*/
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g_strdelimit (signal->name, NULL, '-');
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quark = g_quark_from_static_string (signal->name);
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if (quark != hash->quark)
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{
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hash = g_chunk_new (GtkSignalHash, gtk_signal_hash_mem_chunk);
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hash->object_type = object_type;
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hash->quark = quark;
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hash->signal_id = signal->signal_id;
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g_hash_table_insert (gtk_signal_hash_table, hash, GUINT_TO_POINTER (hash->signal_id));
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}
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return signal->signal_id;
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}
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guint
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gtk_signal_new (const gchar *name,
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GtkSignalRunType signal_flags,
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GtkType object_type,
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guint function_offset,
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GtkSignalMarshaller marshaller,
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GtkType return_val,
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guint nparams,
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...)
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{
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GtkType *params;
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guint i;
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va_list args;
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guint signal_id;
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g_return_val_if_fail (nparams < MAX_SIGNAL_PARAMS, 0);
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if (nparams > 0)
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{
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params = g_new (GtkType, nparams);
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va_start (args, nparams);
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for (i = 0; i < nparams; i++)
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params[i] = va_arg (args, GtkType);
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va_end (args);
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}
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else
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params = NULL;
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signal_id = gtk_signal_newv (name,
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signal_flags,
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object_type,
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function_offset,
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marshaller,
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return_val,
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nparams,
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params);
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g_free (params);
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return signal_id;
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}
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guint
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gtk_signal_lookup (const gchar *name,
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GtkType object_type)
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{
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GtkSignalHash hash;
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g_return_val_if_fail (name != NULL, 0);
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g_return_val_if_fail (gtk_type_is_a (object_type, GTK_TYPE_OBJECT), 0);
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hash.quark = g_quark_try_string (name);
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if (hash.quark)
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{
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while (object_type)
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{
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guint signal_id;
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hash.object_type = object_type;
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signal_id = GPOINTER_TO_UINT (g_hash_table_lookup (gtk_signal_hash_table, &hash));
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if (signal_id)
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return signal_id;
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object_type = gtk_type_parent (object_type);
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}
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}
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return 0;
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}
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GtkSignalQuery*
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gtk_signal_query (guint signal_id)
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{
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GtkSignalQuery *query;
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GtkSignal *signal;
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g_return_val_if_fail (signal_id >= 1, NULL);
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signal = LOOKUP_SIGNAL_ID (signal_id);
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if (signal)
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{
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query = g_new (GtkSignalQuery, 1);
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query->object_type = signal->object_type;
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query->signal_id = signal_id;
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query->signal_name = signal->name;
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query->is_user_signal = signal->function_offset == 0;
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query->signal_flags = signal->signal_flags;
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query->return_val = signal->return_val;
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query->nparams = signal->nparams;
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query->params = signal->params;
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}
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else
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query = NULL;
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return query;
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}
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|
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gchar*
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gtk_signal_name (guint signal_id)
|
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{
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GtkSignal *signal;
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g_return_val_if_fail (signal_id >= 1, NULL);
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signal = LOOKUP_SIGNAL_ID (signal_id);
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if (signal)
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return signal->name;
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|
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return NULL;
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}
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|
|
void
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gtk_signal_emitv (GtkObject *object,
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guint signal_id,
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GtkArg *params)
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{
|
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GtkSignal *signal;
|
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|
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g_return_if_fail (object != NULL);
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g_return_if_fail (signal_id >= 1);
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|
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signal = LOOKUP_SIGNAL_ID (signal_id);
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g_return_if_fail (signal != NULL);
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g_return_if_fail (gtk_type_is_a (GTK_OBJECT_TYPE (object), signal->object_type));
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|
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if (signal->nparams > 0)
|
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g_return_if_fail (params != NULL);
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|
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gtk_signal_real_emit (object, signal_id, params);
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}
|
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|
|
void
|
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gtk_signal_emit (GtkObject *object,
|
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guint signal_id,
|
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...)
|
|
{
|
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GtkSignal *signal;
|
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va_list args;
|
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GtkArg params[MAX_SIGNAL_PARAMS + 1];
|
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gboolean abort;
|
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|
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g_return_if_fail (object != NULL);
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g_return_if_fail (signal_id >= 1);
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|
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signal = LOOKUP_SIGNAL_ID (signal_id);
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g_return_if_fail (signal != NULL);
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g_return_if_fail (gtk_type_is_a (GTK_OBJECT_TYPE (object), signal->object_type));
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|
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va_start (args, signal_id);
|
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abort = gtk_signal_collect_params (params,
|
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signal->nparams,
|
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signal->params,
|
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signal->return_val,
|
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args);
|
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va_end (args);
|
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|
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if (!abort)
|
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gtk_signal_real_emit (object, signal_id, params);
|
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}
|
|
|
|
void
|
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gtk_signal_emitv_by_name (GtkObject *object,
|
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const gchar *name,
|
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GtkArg *params)
|
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{
|
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guint signal_id;
|
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|
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g_return_if_fail (object != NULL);
|
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g_return_if_fail (name != NULL);
|
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g_return_if_fail (params != NULL);
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|
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signal_id = gtk_signal_lookup (name, GTK_OBJECT_TYPE (object));
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|
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if (signal_id >= 1)
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{
|
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GtkSignal *signal;
|
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|
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signal = LOOKUP_SIGNAL_ID (signal_id);
|
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g_return_if_fail (signal != NULL);
|
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g_return_if_fail (gtk_type_is_a (GTK_OBJECT_TYPE (object), signal->object_type));
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|
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gtk_signal_real_emit (object, signal_id, params);
|
|
}
|
|
else
|
|
{
|
|
g_warning ("gtk_signal_emitv_by_name(): could not find signal \"%s\" in the `%s' class ancestry",
|
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name,
|
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gtk_type_name (GTK_OBJECT_TYPE (object)));
|
|
}
|
|
}
|
|
|
|
void
|
|
gtk_signal_emit_by_name (GtkObject *object,
|
|
const gchar *name,
|
|
...)
|
|
{
|
|
guint signal_id;
|
|
|
|
g_return_if_fail (object != NULL);
|
|
g_return_if_fail (name != NULL);
|
|
|
|
signal_id = gtk_signal_lookup (name, GTK_OBJECT_TYPE (object));
|
|
|
|
if (signal_id >= 1)
|
|
{
|
|
GtkSignal *signal;
|
|
GtkArg params[MAX_SIGNAL_PARAMS + 1];
|
|
va_list args;
|
|
gboolean abort;
|
|
|
|
signal = LOOKUP_SIGNAL_ID (signal_id);
|
|
g_return_if_fail (signal != NULL);
|
|
g_return_if_fail (gtk_type_is_a (GTK_OBJECT_TYPE (object), signal->object_type));
|
|
|
|
va_start (args, name);
|
|
abort = gtk_signal_collect_params (params,
|
|
signal->nparams,
|
|
signal->params,
|
|
signal->return_val,
|
|
args);
|
|
va_end (args);
|
|
|
|
if (!abort)
|
|
gtk_signal_real_emit (object, signal_id, params);
|
|
}
|
|
else
|
|
{
|
|
g_warning ("gtk_signal_emit_by_name(): could not find signal \"%s\" in the `%s' class ancestry",
|
|
name,
|
|
gtk_type_name (GTK_OBJECT_TYPE (object)));
|
|
}
|
|
}
|
|
|
|
void
|
|
gtk_signal_emit_stop (GtkObject *object,
|
|
guint signal_id)
|
|
{
|
|
g_return_if_fail (object != NULL);
|
|
g_return_if_fail (signal_id >= 1);
|
|
|
|
if (gtk_emission_check (current_emissions, object, signal_id))
|
|
gtk_emission_add (&stop_emissions, object, signal_id);
|
|
else
|
|
g_warning ("gtk_signal_emit_stop(): no current emission (%u) for object `%s'",
|
|
signal_id,
|
|
gtk_type_name (GTK_OBJECT_TYPE (object)));
|
|
}
|
|
|
|
void
|
|
gtk_signal_emit_stop_by_name (GtkObject *object,
|
|
const gchar *name)
|
|
{
|
|
guint signal_id;
|
|
|
|
g_return_if_fail (object != NULL);
|
|
g_return_if_fail (name != NULL);
|
|
|
|
signal_id = gtk_signal_lookup (name, GTK_OBJECT_TYPE (object));
|
|
if (signal_id)
|
|
gtk_signal_emit_stop (object, signal_id);
|
|
else
|
|
g_warning ("gtk_signal_emit_stop_by_name(): could not find signal \"%s\" in the `%s' class ancestry",
|
|
name,
|
|
gtk_type_name (GTK_OBJECT_TYPE (object)));
|
|
}
|
|
|
|
guint
|
|
gtk_signal_n_emissions (GtkObject *object,
|
|
guint signal_id)
|
|
{
|
|
GList *list;
|
|
guint n;
|
|
|
|
g_return_val_if_fail (object != NULL, 0);
|
|
g_return_val_if_fail (GTK_IS_OBJECT (object), 0);
|
|
|
|
n = 0;
|
|
for (list = current_emissions; list; list = list->next)
|
|
{
|
|
GtkEmission *emission;
|
|
|
|
emission = list->data;
|
|
|
|
if ((emission->object == object) &&
|
|
(emission->signal_id == signal_id))
|
|
n++;
|
|
}
|
|
|
|
return n;
|
|
}
|
|
|
|
guint
|
|
gtk_signal_n_emissions_by_name (GtkObject *object,
|
|
const gchar *name)
|
|
{
|
|
guint signal_id;
|
|
guint n;
|
|
|
|
g_return_val_if_fail (object != NULL, 0);
|
|
g_return_val_if_fail (GTK_IS_OBJECT (object), 0);
|
|
g_return_val_if_fail (name != NULL, 0);
|
|
|
|
signal_id = gtk_signal_lookup (name, GTK_OBJECT_TYPE (object));
|
|
if (signal_id)
|
|
n = gtk_signal_n_emissions (object, signal_id);
|
|
else
|
|
{
|
|
g_warning ("gtk_signal_n_emissions_by_name(): could not find signal \"%s\" in the `%s' class ancestry",
|
|
name,
|
|
gtk_type_name (GTK_OBJECT_TYPE (object)));
|
|
n = 0;
|
|
}
|
|
|
|
return n;
|
|
}
|
|
|
|
guint
|
|
gtk_signal_connect (GtkObject *object,
|
|
const gchar *name,
|
|
GtkSignalFunc func,
|
|
gpointer func_data)
|
|
{
|
|
guint signal_id;
|
|
|
|
g_return_val_if_fail (object != NULL, 0);
|
|
g_return_val_if_fail (GTK_IS_OBJECT (object), 0);
|
|
|
|
signal_id = gtk_signal_lookup (name, GTK_OBJECT_TYPE (object));
|
|
if (!signal_id)
|
|
{
|
|
g_warning ("gtk_signal_connect(): could not find signal \"%s\" in the `%s' class ancestry",
|
|
name,
|
|
gtk_type_name (GTK_OBJECT_TYPE (object)));
|
|
return 0;
|
|
}
|
|
|
|
return gtk_signal_connect_by_type (object, signal_id,
|
|
func, func_data, NULL,
|
|
FALSE, FALSE, FALSE);
|
|
}
|
|
|
|
guint
|
|
gtk_signal_connect_after (GtkObject *object,
|
|
const gchar *name,
|
|
GtkSignalFunc func,
|
|
gpointer func_data)
|
|
{
|
|
guint signal_id;
|
|
|
|
g_return_val_if_fail (object != NULL, 0);
|
|
|
|
signal_id = gtk_signal_lookup (name, GTK_OBJECT_TYPE (object));
|
|
if (!signal_id)
|
|
{
|
|
g_warning ("gtk_signal_connect_after(): could not find signal \"%s\" in the `%s' class ancestry",
|
|
name,
|
|
gtk_type_name (GTK_OBJECT_TYPE (object)));
|
|
return 0;
|
|
}
|
|
|
|
return gtk_signal_connect_by_type (object, signal_id,
|
|
func, func_data, NULL,
|
|
FALSE, TRUE, FALSE);
|
|
}
|
|
|
|
guint
|
|
gtk_signal_connect_full (GtkObject *object,
|
|
const gchar *name,
|
|
GtkSignalFunc func,
|
|
GtkCallbackMarshal marshal,
|
|
gpointer func_data,
|
|
GtkDestroyNotify destroy_func,
|
|
gint object_signal,
|
|
gint after)
|
|
{
|
|
guint signal_id;
|
|
|
|
g_return_val_if_fail (object != NULL, 0);
|
|
|
|
signal_id = gtk_signal_lookup (name, GTK_OBJECT_TYPE (object));
|
|
if (!signal_id)
|
|
{
|
|
g_warning ("gtk_signal_connect_full(): could not find signal \"%s\" in the `%s' class ancestry",
|
|
name,
|
|
gtk_type_name (GTK_OBJECT_TYPE (object)));
|
|
return 0;
|
|
}
|
|
|
|
if (marshal)
|
|
return gtk_signal_connect_by_type (object, signal_id, (GtkSignalFunc) marshal,
|
|
func_data, destroy_func,
|
|
object_signal, after, TRUE);
|
|
else
|
|
return gtk_signal_connect_by_type (object, signal_id, func,
|
|
func_data, destroy_func,
|
|
object_signal, after, FALSE);
|
|
}
|
|
|
|
guint
|
|
gtk_signal_connect_interp (GtkObject *object,
|
|
const gchar *name,
|
|
GtkCallbackMarshal func,
|
|
gpointer func_data,
|
|
GtkDestroyNotify destroy_func,
|
|
gint after)
|
|
{
|
|
return gtk_signal_connect_full (object, name, NULL, func,
|
|
func_data, destroy_func, FALSE, after);
|
|
}
|
|
|
|
guint
|
|
gtk_signal_connect_object (GtkObject *object,
|
|
const gchar *name,
|
|
GtkSignalFunc func,
|
|
GtkObject *slot_object)
|
|
{
|
|
guint signal_id;
|
|
|
|
g_return_val_if_fail (object != NULL, 0);
|
|
/* slot_object needs to be treated as ordinary pointer
|
|
*/
|
|
|
|
signal_id = gtk_signal_lookup (name, GTK_OBJECT_TYPE (object));
|
|
if (!signal_id)
|
|
{
|
|
g_warning ("gtk_signal_connect_object(): could not find signal \"%s\" in the `%s' class ancestry",
|
|
name,
|
|
gtk_type_name (GTK_OBJECT_TYPE (object)));
|
|
return 0;
|
|
}
|
|
|
|
return gtk_signal_connect_by_type (object, signal_id,
|
|
func, slot_object, NULL,
|
|
TRUE, FALSE, FALSE);
|
|
}
|
|
|
|
guint
|
|
gtk_signal_connect_object_after (GtkObject *object,
|
|
const gchar *name,
|
|
GtkSignalFunc func,
|
|
GtkObject *slot_object)
|
|
{
|
|
guint signal_id;
|
|
|
|
g_return_val_if_fail (object != NULL, 0);
|
|
|
|
signal_id = gtk_signal_lookup (name, GTK_OBJECT_TYPE (object));
|
|
if (!signal_id)
|
|
{
|
|
g_warning ("gtk_signal_connect_object_after(): could not find signal \"%s\" in the `%s' class ancestry",
|
|
name,
|
|
gtk_type_name (GTK_OBJECT_TYPE (object)));
|
|
return 0;
|
|
}
|
|
|
|
return gtk_signal_connect_by_type (object, signal_id,
|
|
func, slot_object, NULL,
|
|
TRUE, TRUE, FALSE);
|
|
}
|
|
|
|
void
|
|
gtk_signal_connect_while_alive (GtkObject *object,
|
|
const gchar *signal,
|
|
GtkSignalFunc func,
|
|
gpointer func_data,
|
|
GtkObject *alive_object)
|
|
{
|
|
GtkDisconnectInfo *info;
|
|
|
|
g_return_if_fail (object != NULL);
|
|
g_return_if_fail (GTK_IS_OBJECT (object));
|
|
g_return_if_fail (signal != NULL);
|
|
g_return_if_fail (func != NULL);
|
|
g_return_if_fail (alive_object != NULL);
|
|
g_return_if_fail (GTK_IS_OBJECT (alive_object));
|
|
|
|
info = g_chunk_new (GtkDisconnectInfo, gtk_disconnect_info_mem_chunk);
|
|
info->object1 = object;
|
|
info->object2 = alive_object;
|
|
|
|
info->signal_handler = gtk_signal_connect (object, signal, func, func_data);
|
|
info->disconnect_handler1 =
|
|
gtk_signal_connect_object (info->object1,
|
|
"destroy",
|
|
GTK_SIGNAL_FUNC (gtk_alive_disconnecter),
|
|
(GtkObject*) info);
|
|
info->disconnect_handler2 =
|
|
gtk_signal_connect_object (info->object2,
|
|
"destroy",
|
|
GTK_SIGNAL_FUNC (gtk_alive_disconnecter),
|
|
(GtkObject*) info);
|
|
}
|
|
|
|
void
|
|
gtk_signal_connect_object_while_alive (GtkObject *object,
|
|
const gchar *signal,
|
|
GtkSignalFunc func,
|
|
GtkObject *alive_object)
|
|
{
|
|
GtkDisconnectInfo *info;
|
|
|
|
g_return_if_fail (object != NULL);
|
|
g_return_if_fail (GTK_IS_OBJECT (object));
|
|
g_return_if_fail (signal != NULL);
|
|
g_return_if_fail (func != NULL);
|
|
g_return_if_fail (alive_object != NULL);
|
|
g_return_if_fail (GTK_IS_OBJECT (alive_object));
|
|
|
|
info = g_chunk_new (GtkDisconnectInfo, gtk_disconnect_info_mem_chunk);
|
|
info->object1 = object;
|
|
info->object2 = alive_object;
|
|
|
|
info->signal_handler = gtk_signal_connect_object (object, signal, func, alive_object);
|
|
info->disconnect_handler1 =
|
|
gtk_signal_connect_object (info->object1,
|
|
"destroy",
|
|
GTK_SIGNAL_FUNC (gtk_alive_disconnecter),
|
|
(GtkObject*) info);
|
|
info->disconnect_handler2 =
|
|
gtk_signal_connect_object (info->object2,
|
|
"destroy",
|
|
GTK_SIGNAL_FUNC (gtk_alive_disconnecter),
|
|
(GtkObject*) info);
|
|
}
|
|
|
|
void
|
|
gtk_signal_disconnect (GtkObject *object,
|
|
guint handler_id)
|
|
{
|
|
GtkHandler *handler;
|
|
|
|
g_return_if_fail (object != NULL);
|
|
g_return_if_fail (handler_id > 0);
|
|
|
|
handler = gtk_object_get_data_by_id (object, handler_quark);
|
|
|
|
while (handler)
|
|
{
|
|
if (handler->id == handler_id)
|
|
{
|
|
handler->id = 0;
|
|
handler->blocked += 1;
|
|
gtk_signal_handler_unref (handler, object);
|
|
return;
|
|
}
|
|
handler = handler->next;
|
|
}
|
|
|
|
g_warning ("gtk_signal_disconnect(): could not find handler (%u)", handler_id);
|
|
}
|
|
|
|
void
|
|
gtk_signal_disconnect_by_func (GtkObject *object,
|
|
GtkSignalFunc func,
|
|
gpointer data)
|
|
{
|
|
GtkHandler *handler;
|
|
gint found_one;
|
|
|
|
g_return_if_fail (object != NULL);
|
|
g_return_if_fail (func != NULL);
|
|
|
|
found_one = FALSE;
|
|
handler = gtk_object_get_data_by_id (object, handler_quark);
|
|
|
|
while (handler)
|
|
{
|
|
GtkHandler *handler_next;
|
|
|
|
handler_next = handler->next;
|
|
if ((handler->id > 0) &&
|
|
(handler->func == func) &&
|
|
(handler->func_data == data))
|
|
{
|
|
found_one = TRUE;
|
|
handler->id = 0;
|
|
handler->blocked += 1;
|
|
gtk_signal_handler_unref (handler, object);
|
|
}
|
|
handler = handler_next;
|
|
}
|
|
|
|
if (!found_one)
|
|
g_warning ("gtk_signal_disconnect_by_func(): could not find handler (0x%0lX) containing data (0x%0lX)", (long) func, (long) data);
|
|
}
|
|
|
|
void
|
|
gtk_signal_disconnect_by_data (GtkObject *object,
|
|
gpointer data)
|
|
{
|
|
GtkHandler *handler;
|
|
gint found_one;
|
|
|
|
g_return_if_fail (object != NULL);
|
|
|
|
found_one = FALSE;
|
|
handler = gtk_object_get_data_by_id (object, handler_quark);
|
|
|
|
while (handler)
|
|
{
|
|
GtkHandler *handler_next;
|
|
|
|
handler_next = handler->next;
|
|
if ((handler->id > 0) &&
|
|
(handler->func_data == data))
|
|
{
|
|
found_one = TRUE;
|
|
handler->id = 0;
|
|
handler->blocked += 1;
|
|
gtk_signal_handler_unref (handler, object);
|
|
}
|
|
handler = handler_next;
|
|
}
|
|
|
|
if (!found_one)
|
|
g_warning ("gtk_signal_disconnect_by_data(): could not find handler containing data (0x%0lX)", (long) data);
|
|
}
|
|
|
|
void
|
|
gtk_signal_handler_block (GtkObject *object,
|
|
guint handler_id)
|
|
{
|
|
GtkHandler *handler;
|
|
|
|
g_return_if_fail (object != NULL);
|
|
g_return_if_fail (handler_id > 0);
|
|
|
|
handler = gtk_object_get_data_by_id (object, handler_quark);
|
|
|
|
while (handler)
|
|
{
|
|
if (handler->id == handler_id)
|
|
{
|
|
handler->blocked += 1;
|
|
return;
|
|
}
|
|
handler = handler->next;
|
|
}
|
|
|
|
g_warning ("gtk_signal_handler_block(): could not find handler (%u)", handler_id);
|
|
}
|
|
|
|
void
|
|
gtk_signal_handler_block_by_func (GtkObject *object,
|
|
GtkSignalFunc func,
|
|
gpointer data)
|
|
{
|
|
GtkHandler *handler;
|
|
gint found_one;
|
|
|
|
g_return_if_fail (object != NULL);
|
|
g_return_if_fail (func != NULL);
|
|
|
|
found_one = FALSE;
|
|
handler = gtk_object_get_data_by_id (object, handler_quark);
|
|
|
|
while (handler)
|
|
{
|
|
if ((handler->id > 0) &&
|
|
(handler->func == func) &&
|
|
(handler->func_data == data))
|
|
{
|
|
found_one = TRUE;
|
|
handler->blocked += 1;
|
|
}
|
|
handler = handler->next;
|
|
}
|
|
|
|
if (!found_one)
|
|
g_warning ("gtk_signal_handler_block_by_func(): could not find handler (0x%0lX) containing data (0x%0lX)", (long) func, (long) data);
|
|
}
|
|
|
|
void
|
|
gtk_signal_handler_block_by_data (GtkObject *object,
|
|
gpointer data)
|
|
{
|
|
GtkHandler *handler;
|
|
gint found_one;
|
|
|
|
g_return_if_fail (object != NULL);
|
|
|
|
found_one = FALSE;
|
|
handler = gtk_object_get_data_by_id (object, handler_quark);
|
|
|
|
while (handler)
|
|
{
|
|
if ((handler->id > 0) &&
|
|
(handler->func_data == data))
|
|
{
|
|
found_one = TRUE;
|
|
handler->blocked += 1;
|
|
}
|
|
handler = handler->next;
|
|
}
|
|
|
|
if (!found_one)
|
|
g_warning ("gtk_signal_handler_block_by_data(): could not find handler containing data (0x%0lX)", (long) data);
|
|
}
|
|
|
|
void
|
|
gtk_signal_handler_unblock (GtkObject *object,
|
|
guint handler_id)
|
|
{
|
|
GtkHandler *handler;
|
|
|
|
g_return_if_fail (object != NULL);
|
|
g_return_if_fail (handler_id > 0);
|
|
|
|
handler = gtk_object_get_data_by_id (object, handler_quark);
|
|
|
|
while (handler)
|
|
{
|
|
if (handler->id == handler_id)
|
|
{
|
|
if (handler->blocked > 0)
|
|
handler->blocked -= 1;
|
|
else
|
|
g_warning ("gtk_signal_handler_unblock(): handler (%u) is not blocked", handler_id);
|
|
return;
|
|
}
|
|
handler = handler->next;
|
|
}
|
|
|
|
g_warning ("gtk_signal_handler_unblock(): could not find handler (%u)", handler_id);
|
|
}
|
|
|
|
void
|
|
gtk_signal_handler_unblock_by_func (GtkObject *object,
|
|
GtkSignalFunc func,
|
|
gpointer data)
|
|
{
|
|
GtkHandler *handler;
|
|
gint found_one;
|
|
|
|
g_return_if_fail (object != NULL);
|
|
g_return_if_fail (func != NULL);
|
|
|
|
found_one = FALSE;
|
|
handler = gtk_object_get_data_by_id (object, handler_quark);
|
|
|
|
while (handler)
|
|
{
|
|
if ((handler->id > 0) &&
|
|
(handler->func == func) &&
|
|
(handler->func_data == data) &&
|
|
(handler->blocked > 0))
|
|
{
|
|
handler->blocked -= 1;
|
|
found_one = TRUE;
|
|
}
|
|
handler = handler->next;
|
|
}
|
|
|
|
if (!found_one)
|
|
g_warning ("gtk_signal_handler_unblock_by_func(): could not find blocked handler (0x%0lX) containing data (0x%0lX)", (long) func, (long) data);
|
|
}
|
|
|
|
void
|
|
gtk_signal_handler_unblock_by_data (GtkObject *object,
|
|
gpointer data)
|
|
{
|
|
GtkHandler *handler;
|
|
gint found_one;
|
|
|
|
g_return_if_fail (object != NULL);
|
|
|
|
found_one = FALSE;
|
|
handler = gtk_object_get_data_by_id (object, handler_quark);
|
|
|
|
while (handler)
|
|
{
|
|
if ((handler->id > 0) &&
|
|
(handler->func_data == data) &&
|
|
(handler->blocked > 0))
|
|
{
|
|
handler->blocked -= 1;
|
|
found_one = TRUE;
|
|
}
|
|
handler = handler->next;
|
|
}
|
|
|
|
if (!found_one)
|
|
g_warning ("gtk_signal_handler_unblock_by_data(): could not find blocked handler containing data (0x%0lX)", (long) data);
|
|
}
|
|
|
|
void
|
|
gtk_signal_handlers_destroy (GtkObject *object)
|
|
{
|
|
GtkHandler *handler;
|
|
|
|
/* we make the "optimization" of destroying the first handler in the last
|
|
* place, since we don't want gtk_signal_handler_unref() to reset the objects
|
|
* handler_key data on each removal
|
|
*/
|
|
|
|
handler = gtk_object_get_data_by_id (object, handler_quark);
|
|
if (handler)
|
|
{
|
|
handler = handler->next;
|
|
while (handler)
|
|
{
|
|
GtkHandler *next;
|
|
|
|
next = handler->next;
|
|
gtk_signal_handler_unref (handler, object);
|
|
handler = next;
|
|
}
|
|
handler = gtk_object_get_data_by_id (object, handler_quark);
|
|
gtk_signal_handler_unref (handler, object);
|
|
}
|
|
}
|
|
|
|
/* Work around the
|
|
'#define gtk_signal_default_marshaller gtk_marshal_NONE__NONE'
|
|
in gtkmarshal.h
|
|
|
|
This is here to provide some sort of basic backwards binary
|
|
compatibility. It is not listed in gtksignal.h in order to make
|
|
sure people recompiling things see warnings and make changes as needed.
|
|
-ECL
|
|
*/
|
|
#undef gtk_signal_default_marshaller
|
|
void
|
|
gtk_signal_default_marshaller (GtkObject *object,
|
|
GtkSignalFunc func,
|
|
gpointer func_data,
|
|
GtkArg *params)
|
|
{
|
|
GtkSignalMarshaller0 rfunc;
|
|
|
|
rfunc = (GtkSignalMarshaller0) func;
|
|
|
|
(* rfunc) (object, func_data);
|
|
}
|
|
#define gtk_signal_default_marshaller gtk_marshal_NONE__NONE
|
|
|
|
void
|
|
gtk_signal_set_funcs (GtkSignalMarshal marshal_func,
|
|
GtkSignalDestroy destroy_func)
|
|
{
|
|
global_marshaller = marshal_func;
|
|
global_destroy_notify = destroy_func;
|
|
}
|
|
|
|
static guint
|
|
gtk_signal_hash (gconstpointer h)
|
|
{
|
|
register const GtkSignalHash *hash = h;
|
|
|
|
return hash->object_type ^ hash->quark;
|
|
}
|
|
|
|
static gint
|
|
gtk_signal_compare (gconstpointer h1,
|
|
gconstpointer h2)
|
|
{
|
|
register const GtkSignalHash *hash1 = h1;
|
|
register const GtkSignalHash *hash2 = h2;
|
|
|
|
return (hash1->quark == hash2->quark &&
|
|
hash1->object_type == hash2->object_type);
|
|
}
|
|
|
|
static guint
|
|
gtk_alive_disconnecter (GtkDisconnectInfo *info)
|
|
{
|
|
g_return_val_if_fail (info != NULL, 0);
|
|
|
|
gtk_signal_disconnect (info->object1, info->disconnect_handler1);
|
|
gtk_signal_disconnect (info->object1, info->signal_handler);
|
|
gtk_signal_disconnect (info->object2, info->disconnect_handler2);
|
|
|
|
g_mem_chunk_free (gtk_disconnect_info_mem_chunk, info);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static GtkHandler*
|
|
gtk_signal_handler_new (void)
|
|
{
|
|
GtkHandler *handler;
|
|
|
|
if (!gtk_handler_free_list)
|
|
{
|
|
GtkHandler *handler_block;
|
|
guint i;
|
|
|
|
handler_block = g_new0 (GtkHandler, HANDLER_BLOCK_SIZE);
|
|
for (i = 1; i < HANDLER_BLOCK_SIZE; i++)
|
|
{
|
|
(handler_block + i)->next = gtk_handler_free_list;
|
|
gtk_handler_free_list = (handler_block + i);
|
|
}
|
|
|
|
handler = handler_block;
|
|
}
|
|
else
|
|
{
|
|
handler = gtk_handler_free_list;
|
|
gtk_handler_free_list = handler->next;
|
|
}
|
|
|
|
handler->id = 0;
|
|
handler->blocked = 0;
|
|
handler->signal_id = 0;
|
|
handler->object_signal = FALSE;
|
|
handler->after = FALSE;
|
|
handler->no_marshal = FALSE;
|
|
handler->ref_count = 1;
|
|
handler->func = NULL;
|
|
handler->func_data = NULL;
|
|
handler->destroy_func = NULL;
|
|
handler->prev = NULL;
|
|
handler->next = NULL;
|
|
|
|
return handler;
|
|
}
|
|
|
|
static void
|
|
gtk_signal_handler_ref (GtkHandler *handler)
|
|
{
|
|
handler->ref_count += 1;
|
|
}
|
|
|
|
static void
|
|
gtk_signal_handler_unref (GtkHandler *handler,
|
|
GtkObject *object)
|
|
{
|
|
if (!handler->ref_count)
|
|
{
|
|
/* FIXME: i wanna get removed somewhen */
|
|
g_warning ("gtk_signal_handler_unref(): handler with ref_count==0!");
|
|
return;
|
|
}
|
|
|
|
handler->ref_count -= 1;
|
|
|
|
if (handler->ref_count == 0)
|
|
{
|
|
if (handler->destroy_func)
|
|
(* handler->destroy_func) (handler->func_data);
|
|
else if (!handler->func && global_destroy_notify)
|
|
(* global_destroy_notify) (handler->func_data);
|
|
|
|
if (handler->prev)
|
|
handler->prev->next = handler->next;
|
|
else if (handler->next)
|
|
gtk_object_set_data_by_id (object, handler_quark, handler->next);
|
|
else
|
|
{
|
|
GTK_OBJECT_UNSET_FLAGS (object, GTK_CONNECTED);
|
|
gtk_object_set_data_by_id (object, handler_quark, NULL);
|
|
}
|
|
if (handler->next)
|
|
handler->next->prev = handler->prev;
|
|
|
|
handler->next = gtk_handler_free_list;
|
|
gtk_handler_free_list = handler;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_signal_handler_insert (GtkObject *object,
|
|
GtkHandler *handler)
|
|
{
|
|
GtkHandler *tmp;
|
|
|
|
/* FIXME: remove */ g_assert (handler->next == NULL);
|
|
/* FIXME: remove */ g_assert (handler->prev == NULL);
|
|
|
|
tmp = gtk_object_get_data_by_id (object, handler_quark);
|
|
if (!tmp)
|
|
{
|
|
GTK_OBJECT_SET_FLAGS (object, GTK_CONNECTED);
|
|
gtk_object_set_data_by_id (object, handler_quark, handler);
|
|
}
|
|
else
|
|
while (tmp)
|
|
{
|
|
if (tmp->signal_id < handler->signal_id)
|
|
{
|
|
if (tmp->prev)
|
|
{
|
|
tmp->prev->next = handler;
|
|
handler->prev = tmp->prev;
|
|
}
|
|
else
|
|
gtk_object_set_data_by_id (object, handler_quark, handler);
|
|
tmp->prev = handler;
|
|
handler->next = tmp;
|
|
break;
|
|
}
|
|
|
|
if (!tmp->next)
|
|
{
|
|
tmp->next = handler;
|
|
handler->prev = tmp;
|
|
break;
|
|
}
|
|
tmp = tmp->next;
|
|
}
|
|
}
|
|
|
|
static GtkObject *gtk_trace_signal_object = NULL;
|
|
|
|
static void
|
|
gtk_signal_real_emit (GtkObject *object,
|
|
guint signal_id,
|
|
GtkArg *params)
|
|
{
|
|
GtkSignal signal;
|
|
GtkHandler *handlers;
|
|
GtkSignalFunc *signal_func_offset;
|
|
|
|
/* gtk_handlers_run() expects a reentrant GtkSignal*, so we allocate
|
|
* it locally on the stack. we save some lookups ourselves with this as well.
|
|
*/
|
|
signal = *LOOKUP_SIGNAL_ID (signal_id);
|
|
if (signal.function_offset)
|
|
{
|
|
signal_func_offset = (GtkSignalFunc*) ((guchar*) object->klass + signal.function_offset);
|
|
if (!*signal_func_offset)
|
|
signal_func_offset = (GtkSignalFunc*) 0;
|
|
}
|
|
else
|
|
signal_func_offset = NULL;
|
|
|
|
#ifdef G_ENABLE_DEBUG
|
|
if (gtk_debug_flags & GTK_DEBUG_SIGNALS ||
|
|
object == gtk_trace_signal_object)
|
|
fprintf (stdout, "GTK-DEBUG: signal_emit (\"%s\") for %s:%p (class-pointer %p)\n",
|
|
signal.name,
|
|
gtk_type_name (GTK_OBJECT_TYPE (object)),
|
|
object,
|
|
signal_func_offset);
|
|
#endif /* G_ENABLE_DEBUG */
|
|
|
|
if ((signal.signal_flags & GTK_RUN_NO_RECURSE) &&
|
|
gtk_emission_check (current_emissions, object, signal_id))
|
|
{
|
|
gtk_emission_add (&restart_emissions, object, signal_id);
|
|
return;
|
|
}
|
|
|
|
gtk_object_ref (object);
|
|
|
|
gtk_emission_add (¤t_emissions, object, signal_id);
|
|
|
|
emission_restart:
|
|
if (GTK_RUN_TYPE (signal.signal_flags) != GTK_RUN_LAST && signal_func_offset)
|
|
signal.marshaller (object, *signal_func_offset, NULL, params);
|
|
|
|
if (GTK_OBJECT_CONNECTED (object))
|
|
{
|
|
handlers = gtk_signal_get_handlers (object, signal_id);
|
|
if (handlers)
|
|
{
|
|
gint return_val;
|
|
|
|
return_val = gtk_handlers_run (handlers, &signal, object, params, FALSE);
|
|
switch (return_val)
|
|
{
|
|
case EMISSION_CONTINUE:
|
|
break;
|
|
case EMISSION_RESTART:
|
|
goto emission_restart;
|
|
case EMISSION_DONE:
|
|
goto emission_done;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (GTK_RUN_TYPE (signal.signal_flags) != GTK_RUN_FIRST && signal_func_offset)
|
|
signal.marshaller (object, *signal_func_offset, NULL, params);
|
|
|
|
if (GTK_OBJECT_CONNECTED (object))
|
|
{
|
|
handlers = gtk_signal_get_handlers (object, signal_id);
|
|
if (handlers)
|
|
{
|
|
gint return_val;
|
|
|
|
return_val = gtk_handlers_run (handlers, &signal, object, params, TRUE);
|
|
switch (return_val)
|
|
{
|
|
case EMISSION_CONTINUE:
|
|
break;
|
|
case EMISSION_RESTART:
|
|
goto emission_restart;
|
|
case EMISSION_DONE:
|
|
goto emission_done;
|
|
}
|
|
}
|
|
}
|
|
|
|
emission_done:
|
|
|
|
gtk_emission_remove (¤t_emissions, object, signal_id);
|
|
|
|
if (signal.signal_flags & GTK_RUN_NO_RECURSE)
|
|
gtk_emission_remove (&restart_emissions, object, signal_id);
|
|
|
|
gtk_object_unref (object);
|
|
}
|
|
|
|
static GtkHandler*
|
|
gtk_signal_get_handlers (GtkObject *object,
|
|
guint signal_id)
|
|
{
|
|
GtkHandler *handlers;
|
|
|
|
handlers = gtk_object_get_data_by_id (object, handler_quark);
|
|
|
|
while (handlers)
|
|
{
|
|
if (handlers->signal_id == signal_id)
|
|
return handlers;
|
|
handlers = handlers->next;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
guint
|
|
gtk_signal_handler_pending (GtkObject *object,
|
|
guint signal_id,
|
|
gboolean may_be_blocked)
|
|
{
|
|
GtkHandler *handlers;
|
|
guint handler_id;
|
|
|
|
g_return_val_if_fail (object != NULL, 0);
|
|
g_return_val_if_fail (signal_id >= 1, 0);
|
|
|
|
if (GTK_OBJECT_CONNECTED (object))
|
|
handlers = gtk_signal_get_handlers (object, signal_id);
|
|
else
|
|
return 0;
|
|
|
|
handler_id = 0;
|
|
while (handlers && handlers->signal_id == signal_id)
|
|
{
|
|
if (handlers->id > 0 &&
|
|
(may_be_blocked || handlers->blocked == FALSE))
|
|
{
|
|
handler_id = handlers->id;
|
|
break;
|
|
}
|
|
|
|
handlers = handlers->next;
|
|
}
|
|
|
|
return handler_id;
|
|
}
|
|
|
|
guint
|
|
gtk_signal_handler_pending_by_func (GtkObject *object,
|
|
guint signal_id,
|
|
gboolean may_be_blocked,
|
|
GtkSignalFunc func,
|
|
gpointer data)
|
|
{
|
|
GtkHandler *handlers;
|
|
guint handler_id;
|
|
|
|
g_return_val_if_fail (object != NULL, 0);
|
|
g_return_val_if_fail (func != NULL, 0);
|
|
g_return_val_if_fail (signal_id >= 1, 0);
|
|
|
|
if (GTK_OBJECT_CONNECTED (object))
|
|
handlers = gtk_signal_get_handlers (object, signal_id);
|
|
else
|
|
return 0;
|
|
|
|
handler_id = 0;
|
|
while (handlers && handlers->signal_id == signal_id)
|
|
{
|
|
if (handlers->id > 0 &&
|
|
handlers->func == func &&
|
|
handlers->func_data == data &&
|
|
(may_be_blocked || handlers->blocked == FALSE))
|
|
{
|
|
handler_id = handlers->id;
|
|
break;
|
|
}
|
|
|
|
handlers = handlers->next;
|
|
}
|
|
|
|
return handler_id;
|
|
}
|
|
|
|
static guint
|
|
gtk_signal_connect_by_type (GtkObject *object,
|
|
guint signal_id,
|
|
GtkSignalFunc func,
|
|
gpointer func_data,
|
|
GtkSignalDestroy destroy_func,
|
|
gint object_signal,
|
|
gint after,
|
|
gint no_marshal)
|
|
{
|
|
GtkObjectClass *class;
|
|
GtkHandler *handler;
|
|
gint found_it;
|
|
|
|
g_return_val_if_fail (object != NULL, 0);
|
|
g_return_val_if_fail (object->klass != NULL, 0);
|
|
|
|
/* Search through the signals for this object and make
|
|
* sure the one we are adding is valid. We need to perform
|
|
* the lookup on the objects parents as well. If it isn't
|
|
* valid then issue a warning and return.
|
|
* As of now (1998-05-27) this lookup shouldn't be neccessarry
|
|
* anymore since gtk_signal_lookup() has been reworked to only
|
|
* return correct signal ids per class-branch.
|
|
*/
|
|
found_it = FALSE;
|
|
class = object->klass;
|
|
while (class)
|
|
{
|
|
GtkType parent;
|
|
guint *object_signals;
|
|
guint nsignals;
|
|
guint i;
|
|
|
|
object_signals = class->signals;
|
|
nsignals = class->nsignals;
|
|
|
|
for (i = 0; i < nsignals; i++)
|
|
if (object_signals[i] == signal_id)
|
|
{
|
|
found_it = TRUE;
|
|
break;
|
|
}
|
|
|
|
parent = gtk_type_parent (class->type);
|
|
if (parent)
|
|
class = gtk_type_class (parent);
|
|
else
|
|
class = NULL;
|
|
}
|
|
|
|
if (!found_it)
|
|
{
|
|
g_warning ("gtk_signal_connect_by_type(): could not find signal id (%u) in the `%s' class ancestry",
|
|
signal_id,
|
|
gtk_type_name (object->klass->type));
|
|
return 0;
|
|
}
|
|
|
|
handler = gtk_signal_handler_new ();
|
|
handler->id = gtk_handler_id++;
|
|
handler->signal_id = signal_id;
|
|
handler->object_signal = object_signal;
|
|
handler->func = func;
|
|
handler->func_data = func_data;
|
|
handler->destroy_func = destroy_func;
|
|
handler->after = after != FALSE;
|
|
handler->no_marshal = no_marshal;
|
|
|
|
gtk_signal_handler_insert (object, handler);
|
|
return handler->id;
|
|
}
|
|
|
|
static GtkEmission*
|
|
gtk_emission_new (void)
|
|
{
|
|
GtkEmission *emission;
|
|
|
|
if (!gtk_emission_free_list)
|
|
{
|
|
GtkEmissionAllocator *emission_block;
|
|
guint i;
|
|
|
|
emission_block = g_new0 (GtkEmissionAllocator, EMISSION_BLOCK_SIZE);
|
|
for (i = 1; i < EMISSION_BLOCK_SIZE; i++)
|
|
{
|
|
(emission_block + i)->next = gtk_emission_free_list;
|
|
gtk_emission_free_list = (emission_block + i);
|
|
}
|
|
|
|
emission = &emission_block->emission;
|
|
}
|
|
else
|
|
{
|
|
emission = >k_emission_free_list->emission;
|
|
gtk_emission_free_list = gtk_emission_free_list->next;
|
|
}
|
|
|
|
emission->object = NULL;
|
|
emission->signal_id = 0;
|
|
|
|
return emission;
|
|
}
|
|
|
|
static void
|
|
gtk_emission_add (GList **emissions,
|
|
GtkObject *object,
|
|
guint signal_id)
|
|
{
|
|
GtkEmission *emission;
|
|
|
|
g_return_if_fail (emissions != NULL);
|
|
g_return_if_fail (object != NULL);
|
|
|
|
emission = gtk_emission_new ();
|
|
emission->object = object;
|
|
emission->signal_id = signal_id;
|
|
|
|
*emissions = g_list_prepend (*emissions, emission);
|
|
}
|
|
|
|
static void
|
|
gtk_emission_remove (GList **emissions,
|
|
GtkObject *object,
|
|
guint signal_id)
|
|
{
|
|
GList *tmp;
|
|
|
|
g_return_if_fail (emissions != NULL);
|
|
|
|
tmp = *emissions;
|
|
while (tmp)
|
|
{
|
|
GtkEmissionAllocator *ea;
|
|
|
|
ea = tmp->data;
|
|
|
|
if ((ea->emission.object == object) &&
|
|
(ea->emission.signal_id == signal_id))
|
|
{
|
|
*emissions = g_list_remove_link (*emissions, tmp);
|
|
g_list_free (tmp);
|
|
|
|
ea->next = gtk_emission_free_list;
|
|
gtk_emission_free_list = ea;
|
|
break;
|
|
}
|
|
|
|
tmp = tmp->next;
|
|
}
|
|
}
|
|
|
|
static gint
|
|
gtk_emission_check (GList *emissions,
|
|
GtkObject *object,
|
|
guint signal_id)
|
|
{
|
|
GtkEmission *emission;
|
|
GList *tmp;
|
|
|
|
tmp = emissions;
|
|
while (tmp)
|
|
{
|
|
emission = tmp->data;
|
|
tmp = tmp->next;
|
|
|
|
if ((emission->object == object) &&
|
|
(emission->signal_id == signal_id))
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
gtk_handlers_run (GtkHandler *handlers,
|
|
GtkSignal *signal,
|
|
GtkObject *object,
|
|
GtkArg *params,
|
|
gint after)
|
|
{
|
|
/* *signal is a local copy on the stack of gtk_signal_real_emit(),
|
|
* so we don't need to look it up every time we invoked a function.
|
|
*/
|
|
while (handlers && handlers->signal_id == signal->signal_id)
|
|
{
|
|
GtkHandler *handlers_next;
|
|
|
|
gtk_signal_handler_ref (handlers);
|
|
|
|
if (handlers->blocked == 0 && (handlers->after == after))
|
|
{
|
|
if (handlers->func)
|
|
{
|
|
if (handlers->no_marshal)
|
|
(* (GtkCallbackMarshal) handlers->func) (object,
|
|
handlers->func_data,
|
|
signal->nparams,
|
|
params);
|
|
else if (handlers->object_signal)
|
|
/* don't GTK_OBJECT(handlers->func_data) cast */
|
|
(* signal->marshaller) ((GtkObject*) handlers->func_data,
|
|
handlers->func,
|
|
handlers->func_data,
|
|
params);
|
|
else
|
|
(* signal->marshaller) (object,
|
|
handlers->func,
|
|
handlers->func_data,
|
|
params);
|
|
}
|
|
else if (global_marshaller)
|
|
(* global_marshaller) (object,
|
|
handlers->func_data,
|
|
signal->nparams,
|
|
params,
|
|
signal->params,
|
|
signal->return_val);
|
|
|
|
if (gtk_emission_check (stop_emissions, object,
|
|
signal->signal_id))
|
|
{
|
|
gtk_emission_remove (&stop_emissions, object,
|
|
signal->signal_id);
|
|
|
|
if (signal->signal_flags & GTK_RUN_NO_RECURSE)
|
|
gtk_emission_remove (&restart_emissions, object,
|
|
signal->signal_id);
|
|
gtk_signal_handler_unref (handlers, object);
|
|
return EMISSION_DONE;
|
|
}
|
|
else if ((signal->signal_flags & GTK_RUN_NO_RECURSE) &&
|
|
gtk_emission_check (restart_emissions, object,
|
|
signal->signal_id))
|
|
{
|
|
gtk_emission_remove (&restart_emissions, object,
|
|
signal->signal_id);
|
|
gtk_signal_handler_unref (handlers, object);
|
|
return EMISSION_RESTART;
|
|
}
|
|
}
|
|
|
|
handlers_next = handlers->next;
|
|
gtk_signal_handler_unref (handlers, object);
|
|
handlers = handlers_next;
|
|
}
|
|
|
|
return EMISSION_CONTINUE;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_signal_collect_params (GtkArg *params,
|
|
guint n_params,
|
|
GtkType *param_types,
|
|
GtkType return_type,
|
|
va_list var_args)
|
|
{
|
|
register GtkArg *last_param;
|
|
register gboolean failed = FALSE;
|
|
|
|
for (last_param = params + n_params; params < last_param; params++)
|
|
{
|
|
register gchar *error;
|
|
|
|
params->type = *(param_types++);
|
|
params->name = NULL;
|
|
error = gtk_arg_collect_value (GTK_FUNDAMENTAL_TYPE (params->type),
|
|
params,
|
|
&var_args);
|
|
if (error)
|
|
{
|
|
failed = TRUE;
|
|
g_warning ("gtk_signal_collect_params(): %s", error);
|
|
g_free (error);
|
|
}
|
|
}
|
|
|
|
params->type = return_type;
|
|
params->name = NULL;
|
|
|
|
return_type = GTK_FUNDAMENTAL_TYPE (return_type);
|
|
if (return_type != GTK_TYPE_NONE)
|
|
{
|
|
if ((return_type >= GTK_TYPE_FLAT_FIRST &&
|
|
return_type <= GTK_TYPE_FLAT_LAST) ||
|
|
(return_type == GTK_TYPE_OBJECT))
|
|
{
|
|
GTK_VALUE_POINTER (*params) = va_arg (var_args, gpointer);
|
|
|
|
if (GTK_VALUE_POINTER (*params) == NULL)
|
|
{
|
|
failed = TRUE;
|
|
g_warning ("gtk_signal_collect_params(): invalid NULL pointer for return argument type `%s'",
|
|
gtk_type_name (params->type));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
failed = TRUE;
|
|
g_warning ("gtk_signal_collect_params(): unsupported return argument type `%s'",
|
|
gtk_type_name (params->type));
|
|
}
|
|
}
|
|
else
|
|
GTK_VALUE_POINTER (*params) = NULL;
|
|
|
|
return failed;
|
|
}
|