forked from AuroraMiddleware/gtk
b238c0124a
Fixes https://bugzilla.gnome.org/show_bug.cgi?id=620440 (Reported by Marek Kašík), where the print dialog modality would impair the pop-up window from getting events. Device GTK+ grabs gain in specificness.
2430 lines
65 KiB
C
2430 lines
65 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 Lesser 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser 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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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "config.h"
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#include <glib.h>
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#include "gdkconfig.h"
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#include <locale.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <sys/types.h> /* For uid_t, gid_t */
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#ifdef G_OS_WIN32
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#define STRICT
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#include <windows.h>
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#undef STRICT
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#endif
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#include "gtkintl.h"
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#include "gtkaccelmap.h"
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#include "gtkbox.h"
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#include "gtkclipboard.h"
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#include "gtkdnd.h"
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#include "gtkversion.h"
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#include "gtkmain.h"
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#include "gtkmodules.h"
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#include "gtkrc.h"
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#include "gtkrecentmanager.h"
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#include "gtkselection.h"
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#include "gtksettings.h"
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#include "gtkwidget.h"
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#include "gtkwindow.h"
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#include "gtktooltip.h"
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#include "gtkdebug.h"
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#include "gtkalias.h"
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#include "gtkmenu.h"
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#include "gdk/gdkkeysyms.h"
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#include "gdk/gdkprivate.h" /* for GDK_WINDOW_DESTROYED */
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#ifdef G_OS_WIN32
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static HMODULE gtk_dll;
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BOOL WINAPI
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DllMain (HINSTANCE hinstDLL,
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DWORD fdwReason,
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LPVOID lpvReserved)
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{
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switch (fdwReason)
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{
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case DLL_PROCESS_ATTACH:
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gtk_dll = (HMODULE) hinstDLL;
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break;
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}
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return TRUE;
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}
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/* These here before inclusion of gtkprivate.h so that the original
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* GTK_LIBDIR and GTK_LOCALEDIR definitions are seen. Yeah, this is a
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* bit sucky.
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*/
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const gchar *
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_gtk_get_libdir (void)
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{
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static char *gtk_libdir = NULL;
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if (gtk_libdir == NULL)
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{
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gchar *root = g_win32_get_package_installation_directory_of_module (gtk_dll);
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gchar *slash = strrchr (root, '\\');
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if (g_ascii_strcasecmp (slash + 1, ".libs") == 0)
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gtk_libdir = GTK_LIBDIR;
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else
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gtk_libdir = g_build_filename (root, "lib", NULL);
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g_free (root);
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}
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return gtk_libdir;
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}
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const gchar *
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_gtk_get_localedir (void)
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{
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static char *gtk_localedir = NULL;
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if (gtk_localedir == NULL)
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{
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const gchar *p;
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gchar *root, *temp;
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/* GTK_LOCALEDIR ends in either /lib/locale or
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* /share/locale. Scan for that slash.
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*/
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p = GTK_LOCALEDIR + strlen (GTK_LOCALEDIR);
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while (*--p != '/')
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;
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while (*--p != '/')
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;
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root = g_win32_get_package_installation_directory_of_module (gtk_dll);
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temp = g_build_filename (root, p, NULL);
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g_free (root);
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/* gtk_localedir is passed to bindtextdomain() which isn't
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* UTF-8-aware.
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*/
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gtk_localedir = g_win32_locale_filename_from_utf8 (temp);
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g_free (temp);
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}
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return gtk_localedir;
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}
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#endif
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#include "gtkprivate.h"
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/* Private type definitions
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*/
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typedef struct _GtkInitFunction GtkInitFunction;
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typedef struct _GtkQuitFunction GtkQuitFunction;
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typedef struct _GtkKeySnooperData GtkKeySnooperData;
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struct _GtkInitFunction
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{
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GtkFunction function;
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gpointer data;
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};
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struct _GtkQuitFunction
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{
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guint id;
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guint main_level;
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GtkCallbackMarshal marshal;
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GtkFunction function;
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gpointer data;
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GDestroyNotify destroy;
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};
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struct _GtkKeySnooperData
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{
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GtkKeySnoopFunc func;
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gpointer func_data;
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guint id;
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};
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static gint gtk_quit_invoke_function (GtkQuitFunction *quitf);
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static void gtk_quit_destroy (GtkQuitFunction *quitf);
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static gint gtk_invoke_key_snoopers (GtkWidget *grab_widget,
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GdkEvent *event);
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static GtkWindowGroup *gtk_main_get_window_group (GtkWidget *widget);
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const guint gtk_major_version = GTK_MAJOR_VERSION;
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const guint gtk_minor_version = GTK_MINOR_VERSION;
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const guint gtk_micro_version = GTK_MICRO_VERSION;
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const guint gtk_binary_age = GTK_BINARY_AGE;
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const guint gtk_interface_age = GTK_INTERFACE_AGE;
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static guint gtk_main_loop_level = 0;
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static gint pre_initialized = FALSE;
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static gint gtk_initialized = FALSE;
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static GList *current_events = NULL;
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static GSList *main_loops = NULL; /* stack of currently executing main loops */
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static GList *init_functions = NULL; /* A list of init functions.
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*/
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static GList *quit_functions = NULL; /* A list of quit functions.
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*/
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static GSList *key_snoopers = NULL;
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guint gtk_debug_flags = 0; /* Global GTK debug flag */
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#ifdef G_ENABLE_DEBUG
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static const GDebugKey gtk_debug_keys[] = {
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{"misc", GTK_DEBUG_MISC},
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{"plugsocket", GTK_DEBUG_PLUGSOCKET},
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{"text", GTK_DEBUG_TEXT},
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{"tree", GTK_DEBUG_TREE},
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{"updates", GTK_DEBUG_UPDATES},
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{"keybindings", GTK_DEBUG_KEYBINDINGS},
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{"multihead", GTK_DEBUG_MULTIHEAD},
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{"modules", GTK_DEBUG_MODULES},
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{"geometry", GTK_DEBUG_GEOMETRY},
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{"icontheme", GTK_DEBUG_ICONTHEME},
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{"printing", GTK_DEBUG_PRINTING},
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{"builder", GTK_DEBUG_BUILDER},
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{"extended-layout", GTK_DEBUG_EXTENDED_LAYOUT},
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};
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#endif /* G_ENABLE_DEBUG */
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/**
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* gtk_check_version:
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* @required_major: the required major version.
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* @required_minor: the required minor version.
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* @required_micro: the required micro version.
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*
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* Checks that the GTK+ library in use is compatible with the
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* given version. Generally you would pass in the constants
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* #GTK_MAJOR_VERSION, #GTK_MINOR_VERSION, #GTK_MICRO_VERSION
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* as the three arguments to this function; that produces
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* a check that the library in use is compatible with
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* the version of GTK+ the application or module was compiled
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* against.
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*
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* Compatibility is defined by two things: first the version
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* of the running library is newer than the version
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* @required_major.required_minor.@required_micro. Second
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* the running library must be binary compatible with the
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* version @required_major.required_minor.@required_micro
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* (same major version.)
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*
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* This function is primarily for GTK+ modules; the module
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* can call this function to check that it wasn't loaded
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* into an incompatible version of GTK+. However, such a
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* a check isn't completely reliable, since the module may be
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* linked against an old version of GTK+ and calling the
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* old version of gtk_check_version(), but still get loaded
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* into an application using a newer version of GTK+.
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*
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* Return value: %NULL if the GTK+ library is compatible with the
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* given version, or a string describing the version mismatch.
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* The returned string is owned by GTK+ and should not be modified
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* or freed.
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**/
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const gchar*
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gtk_check_version (guint required_major,
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guint required_minor,
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guint required_micro)
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{
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gint gtk_effective_micro = 100 * GTK_MINOR_VERSION + GTK_MICRO_VERSION;
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gint required_effective_micro = 100 * required_minor + required_micro;
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if (required_major > GTK_MAJOR_VERSION)
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return "Gtk+ version too old (major mismatch)";
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if (required_major < GTK_MAJOR_VERSION)
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return "Gtk+ version too new (major mismatch)";
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if (required_effective_micro < gtk_effective_micro - GTK_BINARY_AGE)
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return "Gtk+ version too new (micro mismatch)";
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if (required_effective_micro > gtk_effective_micro)
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return "Gtk+ version too old (micro mismatch)";
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return NULL;
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}
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/* This checks to see if the process is running suid or sgid
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* at the current time. If so, we don't allow GTK+ to be initialized.
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* This is meant to be a mild check - we only error out if we
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* can prove the programmer is doing something wrong, not if
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* they could be doing something wrong. For this reason, we
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* don't use issetugid() on BSD or prctl (PR_GET_DUMPABLE).
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*/
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static gboolean
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check_setugid (void)
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{
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/* this isn't at all relevant on MS Windows and doesn't compile ... --hb */
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#ifndef G_OS_WIN32
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uid_t ruid, euid, suid; /* Real, effective and saved user ID's */
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gid_t rgid, egid, sgid; /* Real, effective and saved group ID's */
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#ifdef HAVE_GETRESUID
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/* These aren't in the header files, so we prototype them here.
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*/
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int getresuid(uid_t *ruid, uid_t *euid, uid_t *suid);
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int getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid);
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if (getresuid (&ruid, &euid, &suid) != 0 ||
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getresgid (&rgid, &egid, &sgid) != 0)
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#endif /* HAVE_GETRESUID */
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{
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suid = ruid = getuid ();
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sgid = rgid = getgid ();
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euid = geteuid ();
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egid = getegid ();
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}
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if (ruid != euid || ruid != suid ||
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rgid != egid || rgid != sgid)
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{
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g_warning ("This process is currently running setuid or setgid.\n"
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"This is not a supported use of GTK+. You must create a helper\n"
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"program instead. For further details, see:\n\n"
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" http://www.gtk.org/setuid.html\n\n"
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"Refusing to initialize GTK+.");
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exit (1);
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}
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#endif
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return TRUE;
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}
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#ifdef G_OS_WIN32
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const gchar *
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_gtk_get_datadir (void)
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{
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static char *gtk_datadir = NULL;
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if (gtk_datadir == NULL)
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{
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gchar *root = g_win32_get_package_installation_directory_of_module (gtk_dll);
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gtk_datadir = g_build_filename (root, "share", NULL);
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g_free (root);
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}
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return gtk_datadir;
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}
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const gchar *
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_gtk_get_sysconfdir (void)
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{
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static char *gtk_sysconfdir = NULL;
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if (gtk_sysconfdir == NULL)
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{
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gchar *root = g_win32_get_package_installation_directory_of_module (gtk_dll);
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gtk_sysconfdir = g_build_filename (root, "etc", NULL);
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g_free (root);
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}
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return gtk_sysconfdir;
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}
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const gchar *
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_gtk_get_data_prefix (void)
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{
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static char *gtk_data_prefix = NULL;
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if (gtk_data_prefix == NULL)
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gtk_data_prefix = g_win32_get_package_installation_directory_of_module (gtk_dll);
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return gtk_data_prefix;
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}
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#endif /* G_OS_WIN32 */
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static gboolean do_setlocale = TRUE;
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/**
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* gtk_disable_setlocale:
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*
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* Prevents gtk_init(), gtk_init_check(), gtk_init_with_args() and
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* gtk_parse_args() from automatically
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* calling <literal>setlocale (LC_ALL, "")</literal>. You would
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* want to use this function if you wanted to set the locale for
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* your program to something other than the user's locale, or if
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* you wanted to set different values for different locale categories.
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*
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* Most programs should not need to call this function.
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**/
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void
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gtk_disable_setlocale (void)
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{
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if (pre_initialized)
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g_warning ("gtk_disable_setlocale() must be called before gtk_init()");
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do_setlocale = FALSE;
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}
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#ifdef G_PLATFORM_WIN32
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#undef gtk_init_check
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#endif
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static GString *gtk_modules_string = NULL;
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static gboolean g_fatal_warnings = FALSE;
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#ifdef G_ENABLE_DEBUG
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static gboolean
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gtk_arg_debug_cb (const char *key, const char *value, gpointer user_data)
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{
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gtk_debug_flags |= g_parse_debug_string (value,
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gtk_debug_keys,
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G_N_ELEMENTS (gtk_debug_keys));
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return TRUE;
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}
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static gboolean
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gtk_arg_no_debug_cb (const char *key, const char *value, gpointer user_data)
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{
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gtk_debug_flags &= ~g_parse_debug_string (value,
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gtk_debug_keys,
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G_N_ELEMENTS (gtk_debug_keys));
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return TRUE;
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}
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#endif /* G_ENABLE_DEBUG */
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static gboolean
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gtk_arg_module_cb (const char *key, const char *value, gpointer user_data)
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{
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if (value && *value)
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{
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if (gtk_modules_string)
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g_string_append_c (gtk_modules_string, G_SEARCHPATH_SEPARATOR);
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else
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gtk_modules_string = g_string_new (NULL);
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g_string_append (gtk_modules_string, value);
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}
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return TRUE;
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}
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static const GOptionEntry gtk_args[] = {
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{ "gtk-module", 0, 0, G_OPTION_ARG_CALLBACK, gtk_arg_module_cb,
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/* Description of --gtk-module=MODULES in --help output */ N_("Load additional GTK+ modules"),
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/* Placeholder in --gtk-module=MODULES in --help output */ N_("MODULES") },
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{ "g-fatal-warnings", 0, 0, G_OPTION_ARG_NONE, &g_fatal_warnings,
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/* Description of --g-fatal-warnings in --help output */ N_("Make all warnings fatal"), NULL },
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#ifdef G_ENABLE_DEBUG
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{ "gtk-debug", 0, 0, G_OPTION_ARG_CALLBACK, gtk_arg_debug_cb,
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/* Description of --gtk-debug=FLAGS in --help output */ N_("GTK+ debugging flags to set"),
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/* Placeholder in --gtk-debug=FLAGS in --help output */ N_("FLAGS") },
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{ "gtk-no-debug", 0, 0, G_OPTION_ARG_CALLBACK, gtk_arg_no_debug_cb,
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/* Description of --gtk-no-debug=FLAGS in --help output */ N_("GTK+ debugging flags to unset"),
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/* Placeholder in --gtk-no-debug=FLAGS in --help output */ N_("FLAGS") },
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#endif
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{ NULL }
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};
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#ifdef G_OS_WIN32
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static char *iso639_to_check = NULL;
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static char *iso3166_to_check = NULL;
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static char *script_to_check = NULL;
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static gboolean setlocale_called = FALSE;
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static BOOL CALLBACK
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enum_locale_proc (LPTSTR locale)
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{
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LCID lcid;
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char iso639[10];
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char iso3166[10];
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char *endptr;
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lcid = strtoul (locale, &endptr, 16);
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if (*endptr == '\0' &&
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GetLocaleInfo (lcid, LOCALE_SISO639LANGNAME, iso639, sizeof (iso639)) &&
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GetLocaleInfo (lcid, LOCALE_SISO3166CTRYNAME, iso3166, sizeof (iso3166)))
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{
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if (strcmp (iso639, iso639_to_check) == 0 &&
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((iso3166_to_check != NULL &&
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strcmp (iso3166, iso3166_to_check) == 0) ||
|
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(iso3166_to_check == NULL &&
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SUBLANGID (LANGIDFROMLCID (lcid)) == SUBLANG_DEFAULT)))
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{
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char language[100], country[100];
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char locale[300];
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|
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if (script_to_check != NULL)
|
|
{
|
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/* If lcid is the "other" script for this language,
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* return TRUE, i.e. continue looking.
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*/
|
|
if (strcmp (script_to_check, "Latn") == 0)
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{
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switch (LANGIDFROMLCID (lcid))
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{
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case MAKELANGID (LANG_AZERI, SUBLANG_AZERI_CYRILLIC):
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return TRUE;
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case MAKELANGID (LANG_UZBEK, SUBLANG_UZBEK_CYRILLIC):
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return TRUE;
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case MAKELANGID (LANG_SERBIAN, SUBLANG_SERBIAN_CYRILLIC):
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return TRUE;
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case MAKELANGID (LANG_SERBIAN, 0x07):
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/* Serbian in Bosnia and Herzegovina, Cyrillic */
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return TRUE;
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}
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}
|
|
else if (strcmp (script_to_check, "Cyrl") == 0)
|
|
{
|
|
switch (LANGIDFROMLCID (lcid))
|
|
{
|
|
case MAKELANGID (LANG_AZERI, SUBLANG_AZERI_LATIN):
|
|
return TRUE;
|
|
case MAKELANGID (LANG_UZBEK, SUBLANG_UZBEK_LATIN):
|
|
return TRUE;
|
|
case MAKELANGID (LANG_SERBIAN, SUBLANG_SERBIAN_LATIN):
|
|
return TRUE;
|
|
case MAKELANGID (LANG_SERBIAN, 0x06):
|
|
/* Serbian in Bosnia and Herzegovina, Latin */
|
|
return TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
SetThreadLocale (lcid);
|
|
|
|
if (GetLocaleInfo (lcid, LOCALE_SENGLANGUAGE, language, sizeof (language)) &&
|
|
GetLocaleInfo (lcid, LOCALE_SENGCOUNTRY, country, sizeof (country)))
|
|
{
|
|
strcpy (locale, language);
|
|
strcat (locale, "_");
|
|
strcat (locale, country);
|
|
|
|
if (setlocale (LC_ALL, locale) != NULL)
|
|
setlocale_called = TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
#endif
|
|
|
|
static void
|
|
setlocale_initialization (void)
|
|
{
|
|
static gboolean initialized = FALSE;
|
|
|
|
if (initialized)
|
|
return;
|
|
initialized = TRUE;
|
|
|
|
if (do_setlocale)
|
|
{
|
|
#ifdef G_OS_WIN32
|
|
/* If some of the POSIXish environment variables are set, set
|
|
* the Win32 thread locale correspondingly.
|
|
*/
|
|
char *p = getenv ("LC_ALL");
|
|
if (p == NULL)
|
|
p = getenv ("LANG");
|
|
|
|
if (p != NULL)
|
|
{
|
|
p = g_strdup (p);
|
|
if (strcmp (p, "C") == 0)
|
|
SetThreadLocale (LOCALE_SYSTEM_DEFAULT);
|
|
else
|
|
{
|
|
/* Check if one of the supported locales match the
|
|
* environment variable. If so, use that locale.
|
|
*/
|
|
iso639_to_check = p;
|
|
iso3166_to_check = strchr (iso639_to_check, '_');
|
|
if (iso3166_to_check != NULL)
|
|
{
|
|
*iso3166_to_check++ = '\0';
|
|
|
|
script_to_check = strchr (iso3166_to_check, '@');
|
|
if (script_to_check != NULL)
|
|
*script_to_check++ = '\0';
|
|
|
|
/* Handle special cases. */
|
|
|
|
/* The standard code for Serbia and Montenegro was
|
|
* "CS", but MSFT uses for some reason "SP". By now
|
|
* (October 2006), SP has split into two, "RS" and
|
|
* "ME", but don't bother trying to handle those
|
|
* yet. Do handle the even older "YU", though.
|
|
*/
|
|
if (strcmp (iso3166_to_check, "CS") == 0 ||
|
|
strcmp (iso3166_to_check, "YU") == 0)
|
|
iso3166_to_check = "SP";
|
|
}
|
|
else
|
|
{
|
|
script_to_check = strchr (iso639_to_check, '@');
|
|
if (script_to_check != NULL)
|
|
*script_to_check++ = '\0';
|
|
/* LANG_SERBIAN == LANG_CROATIAN, recognize just "sr" */
|
|
if (strcmp (iso639_to_check, "sr") == 0)
|
|
iso3166_to_check = "SP";
|
|
}
|
|
|
|
EnumSystemLocales (enum_locale_proc, LCID_SUPPORTED);
|
|
}
|
|
g_free (p);
|
|
}
|
|
if (!setlocale_called)
|
|
setlocale (LC_ALL, "");
|
|
#else
|
|
if (!setlocale (LC_ALL, ""))
|
|
g_warning ("Locale not supported by C library.\n\tUsing the fallback 'C' locale.");
|
|
#endif
|
|
}
|
|
}
|
|
|
|
static void
|
|
do_pre_parse_initialization (int *argc,
|
|
char ***argv)
|
|
{
|
|
const gchar *env_string;
|
|
|
|
if (pre_initialized)
|
|
return;
|
|
|
|
pre_initialized = TRUE;
|
|
|
|
gdk_pre_parse_libgtk_only ();
|
|
gdk_event_handler_set ((GdkEventFunc)gtk_main_do_event, NULL, NULL);
|
|
|
|
#ifdef G_ENABLE_DEBUG
|
|
env_string = g_getenv ("GTK_DEBUG");
|
|
if (env_string != NULL)
|
|
{
|
|
gtk_debug_flags = g_parse_debug_string (env_string,
|
|
gtk_debug_keys,
|
|
G_N_ELEMENTS (gtk_debug_keys));
|
|
env_string = NULL;
|
|
}
|
|
#endif /* G_ENABLE_DEBUG */
|
|
|
|
env_string = g_getenv ("GTK_MODULES");
|
|
if (env_string)
|
|
gtk_modules_string = g_string_new (env_string);
|
|
}
|
|
|
|
static void
|
|
gettext_initialization (void)
|
|
{
|
|
setlocale_initialization ();
|
|
|
|
#ifdef ENABLE_NLS
|
|
bindtextdomain (GETTEXT_PACKAGE, GTK_LOCALEDIR);
|
|
bindtextdomain (GETTEXT_PACKAGE "-properties", GTK_LOCALEDIR);
|
|
# ifdef HAVE_BIND_TEXTDOMAIN_CODESET
|
|
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
|
|
bind_textdomain_codeset (GETTEXT_PACKAGE "-properties", "UTF-8");
|
|
# endif
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
do_post_parse_initialization (int *argc,
|
|
char ***argv)
|
|
{
|
|
if (gtk_initialized)
|
|
return;
|
|
|
|
gettext_initialization ();
|
|
|
|
#ifdef SIGPIPE
|
|
signal (SIGPIPE, SIG_IGN);
|
|
#endif
|
|
|
|
if (g_fatal_warnings)
|
|
{
|
|
GLogLevelFlags fatal_mask;
|
|
|
|
fatal_mask = g_log_set_always_fatal (G_LOG_FATAL_MASK);
|
|
fatal_mask |= G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL;
|
|
g_log_set_always_fatal (fatal_mask);
|
|
}
|
|
|
|
if (gtk_debug_flags & GTK_DEBUG_UPDATES)
|
|
gdk_window_set_debug_updates (TRUE);
|
|
|
|
{
|
|
/* Translate to default:RTL if you want your widgets
|
|
* to be RTL, otherwise translate to default:LTR.
|
|
* Do *not* translate it to "predefinito:LTR", if it
|
|
* it isn't default:LTR or default:RTL it will not work
|
|
*/
|
|
char *e = _("default:LTR");
|
|
if (strcmp (e, "default:RTL")==0)
|
|
gtk_widget_set_default_direction (GTK_TEXT_DIR_RTL);
|
|
else if (strcmp (e, "default:LTR"))
|
|
g_warning ("Whoever translated default:LTR did so wrongly.\n");
|
|
}
|
|
|
|
/* do what the call to gtk_type_init() used to do */
|
|
g_type_init ();
|
|
|
|
_gtk_accel_map_init ();
|
|
_gtk_rc_init ();
|
|
|
|
/* Set the 'initialized' flag.
|
|
*/
|
|
gtk_initialized = TRUE;
|
|
|
|
/* load gtk modules */
|
|
if (gtk_modules_string)
|
|
{
|
|
_gtk_modules_init (argc, argv, gtk_modules_string->str);
|
|
g_string_free (gtk_modules_string, TRUE);
|
|
}
|
|
else
|
|
{
|
|
_gtk_modules_init (argc, argv, NULL);
|
|
}
|
|
}
|
|
|
|
|
|
typedef struct
|
|
{
|
|
gboolean open_default_display;
|
|
} OptionGroupInfo;
|
|
|
|
static gboolean
|
|
pre_parse_hook (GOptionContext *context,
|
|
GOptionGroup *group,
|
|
gpointer data,
|
|
GError **error)
|
|
{
|
|
do_pre_parse_initialization (NULL, NULL);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
post_parse_hook (GOptionContext *context,
|
|
GOptionGroup *group,
|
|
gpointer data,
|
|
GError **error)
|
|
{
|
|
OptionGroupInfo *info = data;
|
|
|
|
|
|
do_post_parse_initialization (NULL, NULL);
|
|
|
|
if (info->open_default_display)
|
|
{
|
|
if (gdk_display_open_default_libgtk_only () == NULL)
|
|
{
|
|
const char *display_name = gdk_get_display_arg_name ();
|
|
g_set_error (error,
|
|
G_OPTION_ERROR,
|
|
G_OPTION_ERROR_FAILED,
|
|
_("Cannot open display: %s"),
|
|
display_name ? display_name : "" );
|
|
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/**
|
|
* gtk_get_option_group:
|
|
* @open_default_display: whether to open the default display
|
|
* when parsing the commandline arguments
|
|
*
|
|
* Returns a #GOptionGroup for the commandline arguments recognized
|
|
* by GTK+ and GDK. You should add this group to your #GOptionContext
|
|
* with g_option_context_add_group(), if you are using
|
|
* g_option_context_parse() to parse your commandline arguments.
|
|
*
|
|
* Returns: a #GOptionGroup for the commandline arguments recognized
|
|
* by GTK+
|
|
*
|
|
* Since: 2.6
|
|
*/
|
|
GOptionGroup *
|
|
gtk_get_option_group (gboolean open_default_display)
|
|
{
|
|
GOptionGroup *group;
|
|
OptionGroupInfo *info;
|
|
|
|
gettext_initialization ();
|
|
|
|
info = g_new0 (OptionGroupInfo, 1);
|
|
info->open_default_display = open_default_display;
|
|
|
|
group = g_option_group_new ("gtk", _("GTK+ Options"), _("Show GTK+ Options"), info, g_free);
|
|
g_option_group_set_parse_hooks (group, pre_parse_hook, post_parse_hook);
|
|
|
|
gdk_add_option_entries_libgtk_only (group);
|
|
g_option_group_add_entries (group, gtk_args);
|
|
g_option_group_set_translation_domain (group, GETTEXT_PACKAGE);
|
|
|
|
return group;
|
|
}
|
|
|
|
/**
|
|
* gtk_init_with_args:
|
|
* @argc: a pointer to the number of command line arguments.
|
|
* @argv: a pointer to the array of command line arguments.
|
|
* @parameter_string: a string which is displayed in
|
|
* the first line of <option>--help</option> output, after
|
|
* <literal><replaceable>programname</replaceable> [OPTION...]</literal>
|
|
* @entries: a %NULL-terminated array of #GOptionEntry<!-- -->s
|
|
* describing the options of your program
|
|
* @translation_domain: a translation domain to use for translating
|
|
* the <option>--help</option> output for the options in @entries
|
|
* with gettext(), or %NULL
|
|
* @error: a return location for errors
|
|
*
|
|
* This function does the same work as gtk_init_check().
|
|
* Additionally, it allows you to add your own commandline options,
|
|
* and it automatically generates nicely formatted
|
|
* <option>--help</option> output. Note that your program will
|
|
* be terminated after writing out the help output.
|
|
*
|
|
* Returns: %TRUE if the GUI has been successfully initialized,
|
|
* %FALSE otherwise.
|
|
*
|
|
* Since: 2.6
|
|
*/
|
|
gboolean
|
|
gtk_init_with_args (gint *argc,
|
|
gchar ***argv,
|
|
const gchar *parameter_string,
|
|
const GOptionEntry *entries,
|
|
const gchar *translation_domain,
|
|
GError **error)
|
|
{
|
|
GOptionContext *context;
|
|
GOptionGroup *gtk_group;
|
|
gboolean retval;
|
|
|
|
if (gtk_initialized)
|
|
return gdk_display_open_default_libgtk_only () != NULL;
|
|
|
|
gettext_initialization ();
|
|
|
|
if (!check_setugid ())
|
|
return FALSE;
|
|
|
|
gtk_group = gtk_get_option_group (TRUE);
|
|
|
|
context = g_option_context_new (parameter_string);
|
|
g_option_context_add_group (context, gtk_group);
|
|
|
|
if (entries)
|
|
g_option_context_add_main_entries (context, entries, translation_domain);
|
|
retval = g_option_context_parse (context, argc, argv, error);
|
|
|
|
g_option_context_free (context);
|
|
|
|
return retval;
|
|
}
|
|
|
|
|
|
/**
|
|
* gtk_parse_args:
|
|
* @argc: (inout): a pointer to the number of command line arguments.
|
|
* @argv: (array) (inout): a pointer to the array of command line arguments.
|
|
*
|
|
* Parses command line arguments, and initializes global
|
|
* attributes of GTK+, but does not actually open a connection
|
|
* to a display. (See gdk_display_open(), gdk_get_display_arg_name())
|
|
*
|
|
* Any arguments used by GTK+ or GDK are removed from the array and
|
|
* @argc and @argv are updated accordingly.
|
|
*
|
|
* You shouldn't call this function explicitely if you are using
|
|
* gtk_init(), or gtk_init_check().
|
|
*
|
|
* Return value: %TRUE if initialization succeeded, otherwise %FALSE.
|
|
**/
|
|
gboolean
|
|
gtk_parse_args (int *argc,
|
|
char ***argv)
|
|
{
|
|
GOptionContext *option_context;
|
|
GOptionGroup *gtk_group;
|
|
GError *error = NULL;
|
|
|
|
if (gtk_initialized)
|
|
return TRUE;
|
|
|
|
gettext_initialization ();
|
|
|
|
if (!check_setugid ())
|
|
return FALSE;
|
|
|
|
option_context = g_option_context_new (NULL);
|
|
g_option_context_set_ignore_unknown_options (option_context, TRUE);
|
|
g_option_context_set_help_enabled (option_context, FALSE);
|
|
gtk_group = gtk_get_option_group (FALSE);
|
|
g_option_context_set_main_group (option_context, gtk_group);
|
|
if (!g_option_context_parse (option_context, argc, argv, &error))
|
|
{
|
|
g_warning ("%s", error->message);
|
|
g_error_free (error);
|
|
}
|
|
|
|
g_option_context_free (option_context);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
#ifdef G_PLATFORM_WIN32
|
|
#undef gtk_init_check
|
|
#endif
|
|
|
|
/**
|
|
* gtk_init_check:
|
|
* @argc: (inout): Address of the <parameter>argc</parameter> parameter of your
|
|
* main() function. Changed if any arguments were handled.
|
|
* @argv: (array length=argc) (inout) (allow-none): Address of the <parameter>argv</parameter> parameter of main().
|
|
* Any parameters understood by gtk_init() are stripped before return.
|
|
*
|
|
* This function does the same work as gtk_init() with only
|
|
* a single change: It does not terminate the program if the GUI can't be
|
|
* initialized. Instead it returns %FALSE on failure.
|
|
*
|
|
* This way the application can fall back to some other means of communication
|
|
* with the user - for example a curses or command line interface.
|
|
*
|
|
* Return value: %TRUE if the GUI has been successfully initialized,
|
|
* %FALSE otherwise.
|
|
**/
|
|
gboolean
|
|
gtk_init_check (int *argc,
|
|
char ***argv)
|
|
{
|
|
if (!gtk_parse_args (argc, argv))
|
|
return FALSE;
|
|
|
|
return gdk_display_open_default_libgtk_only () != NULL;
|
|
}
|
|
|
|
#ifdef G_PLATFORM_WIN32
|
|
#undef gtk_init
|
|
#endif
|
|
|
|
/**
|
|
* gtk_init:
|
|
* @argc: (inout): Address of the <parameter>argc</parameter> parameter of your
|
|
* main() function. Changed if any arguments were handled.
|
|
* @argv: (array length=argc) (inout) (allow-none): Address of the <parameter>argv</parameter> parameter of main().
|
|
* Any parameters understood by gtk_init() are stripped before return.
|
|
*
|
|
* Call this function before using any other GTK+ functions in your GUI
|
|
* applications. It will initialize everything needed to operate the
|
|
* toolkit and parses some standard command line options. @argc and
|
|
* @argv are adjusted accordingly so your own code will
|
|
* never see those standard arguments.
|
|
*
|
|
* Note that there are some alternative ways to initialize GTK+:
|
|
* if you are calling gtk_parse_args(), gtk_init_check(),
|
|
* gtk_init_with_args() or g_option_context_parse() with
|
|
* the option group returned by gtk_get_option_group(), you
|
|
* <emphasis>don't</emphasis> have to call gtk_init().
|
|
*
|
|
* <note><para>
|
|
* This function will terminate your program if it was unable to initialize
|
|
* the GUI for some reason. If you want your program to fall back to a
|
|
* textual interface you want to call gtk_init_check() instead.
|
|
* </para></note>
|
|
*
|
|
* <note><para>
|
|
* Since 2.18, GTK+ calls <literal>signal (SIGPIPE, SIG_IGN)</literal>
|
|
* during initialization, to ignore SIGPIPE signals, since these are
|
|
* almost never wanted in graphical applications. If you do need to
|
|
* handle SIGPIPE for some reason, reset the handler after gtk_init(),
|
|
* but notice that other libraries (e.g. libdbus or gvfs) might do
|
|
* similar things.
|
|
* </para></note>
|
|
**/
|
|
void
|
|
gtk_init (int *argc, char ***argv)
|
|
{
|
|
if (!gtk_init_check (argc, argv))
|
|
{
|
|
const char *display_name_arg = gdk_get_display_arg_name ();
|
|
if (display_name_arg == NULL)
|
|
display_name_arg = getenv("DISPLAY");
|
|
g_warning ("cannot open display: %s", display_name_arg ? display_name_arg : "");
|
|
exit (1);
|
|
}
|
|
}
|
|
|
|
#ifdef G_PLATFORM_WIN32
|
|
|
|
static void
|
|
check_sizeof_GtkWindow (size_t sizeof_GtkWindow)
|
|
{
|
|
if (sizeof_GtkWindow != sizeof (GtkWindow))
|
|
g_error ("Incompatible build!\n"
|
|
"The code using GTK+ thinks GtkWindow is of different\n"
|
|
"size than it actually is in this build of GTK+.\n"
|
|
"On Windows, this probably means that you have compiled\n"
|
|
"your code with gcc without the -mms-bitfields switch,\n"
|
|
"or that you are using an unsupported compiler.");
|
|
}
|
|
|
|
/* In GTK+ 2.0 the GtkWindow struct actually is the same size in
|
|
* gcc-compiled code on Win32 whether compiled with -fnative-struct or
|
|
* not. Unfortunately this wan't noticed until after GTK+ 2.0.1. So,
|
|
* from GTK+ 2.0.2 on, check some other struct, too, where the use of
|
|
* -fnative-struct still matters. GtkBox is one such.
|
|
*/
|
|
static void
|
|
check_sizeof_GtkBox (size_t sizeof_GtkBox)
|
|
{
|
|
if (sizeof_GtkBox != sizeof (GtkBox))
|
|
g_error ("Incompatible build!\n"
|
|
"The code using GTK+ thinks GtkBox is of different\n"
|
|
"size than it actually is in this build of GTK+.\n"
|
|
"On Windows, this probably means that you have compiled\n"
|
|
"your code with gcc without the -mms-bitfields switch,\n"
|
|
"or that you are using an unsupported compiler.");
|
|
}
|
|
|
|
/* These two functions might get more checks added later, thus pass
|
|
* in the number of extra args.
|
|
*/
|
|
void
|
|
gtk_init_abi_check (int *argc, char ***argv, int num_checks, size_t sizeof_GtkWindow, size_t sizeof_GtkBox)
|
|
{
|
|
check_sizeof_GtkWindow (sizeof_GtkWindow);
|
|
if (num_checks >= 2)
|
|
check_sizeof_GtkBox (sizeof_GtkBox);
|
|
gtk_init (argc, argv);
|
|
}
|
|
|
|
gboolean
|
|
gtk_init_check_abi_check (int *argc, char ***argv, int num_checks, size_t sizeof_GtkWindow, size_t sizeof_GtkBox)
|
|
{
|
|
check_sizeof_GtkWindow (sizeof_GtkWindow);
|
|
if (num_checks >= 2)
|
|
check_sizeof_GtkBox (sizeof_GtkBox);
|
|
return gtk_init_check (argc, argv);
|
|
}
|
|
|
|
#endif
|
|
|
|
/**
|
|
* gtk_set_locale:
|
|
*
|
|
* Initializes internationalization support for GTK+. gtk_init()
|
|
* automatically does this, so there is typically no point
|
|
* in calling this function.
|
|
*
|
|
* If you are calling this function because you changed the locale
|
|
* after GTK+ is was initialized, then calling this function
|
|
* may help a bit. (Note, however, that changing the locale
|
|
* after GTK+ is initialized may produce inconsistent results and
|
|
* is not really supported.)
|
|
*
|
|
* In detail - sets the current locale according to the
|
|
* program environment. This is the same as calling the C library function
|
|
* <literal>setlocale (LC_ALL, "")</literal> but also takes care of the
|
|
* locale specific setup of the windowing system used by GDK.
|
|
*
|
|
* Returns: a string corresponding to the locale set, typically in the
|
|
* form lang_COUNTRY, where lang is an ISO-639 language code, and
|
|
* COUNTRY is an ISO-3166 country code. On Unix, this form matches the
|
|
* result of the setlocale(); it is also used on other machines, such as
|
|
* Windows, where the C library returns a different result. The string is
|
|
* owned by GTK+ and should not be modified or freed.
|
|
**/
|
|
gchar *
|
|
gtk_set_locale (void)
|
|
{
|
|
return gdk_set_locale ();
|
|
}
|
|
|
|
/**
|
|
* _gtk_get_lc_ctype:
|
|
*
|
|
* Return the Unix-style locale string for the language currently in
|
|
* effect. On Unix systems, this is the return value from
|
|
* <literal>setlocale(LC_CTYPE, NULL)</literal>, and the user can
|
|
* affect this through the environment variables LC_ALL, LC_CTYPE or
|
|
* LANG (checked in that order). The locale strings typically is in
|
|
* the form lang_COUNTRY, where lang is an ISO-639 language code, and
|
|
* COUNTRY is an ISO-3166 country code. For instance, sv_FI for
|
|
* Swedish as written in Finland or pt_BR for Portuguese as written in
|
|
* Brazil.
|
|
*
|
|
* On Windows, the C library doesn't use any such environment
|
|
* variables, and setting them won't affect the behaviour of functions
|
|
* like ctime(). The user sets the locale through the Regional Options
|
|
* in the Control Panel. The C library (in the setlocale() function)
|
|
* does not use country and language codes, but country and language
|
|
* names spelled out in English.
|
|
* However, this function does check the above environment
|
|
* variables, and does return a Unix-style locale string based on
|
|
* either said environment variables or the thread's current locale.
|
|
*
|
|
* Return value: a dynamically allocated string, free with g_free().
|
|
*/
|
|
|
|
gchar *
|
|
_gtk_get_lc_ctype (void)
|
|
{
|
|
#ifdef G_OS_WIN32
|
|
/* Somebody might try to set the locale for this process using the
|
|
* LANG or LC_ environment variables. The Microsoft C library
|
|
* doesn't know anything about them. You set the locale in the
|
|
* Control Panel. Setting these env vars won't have any affect on
|
|
* locale-dependent C library functions like ctime(). But just for
|
|
* kicks, do obey LC_ALL, LC_CTYPE and LANG in GTK. (This also makes
|
|
* it easier to test GTK and Pango in various default languages, you
|
|
* don't have to clickety-click in the Control Panel, you can simply
|
|
* start the program with LC_ALL=something on the command line.)
|
|
*/
|
|
gchar *p;
|
|
|
|
p = getenv ("LC_ALL");
|
|
if (p != NULL)
|
|
return g_strdup (p);
|
|
|
|
p = getenv ("LC_CTYPE");
|
|
if (p != NULL)
|
|
return g_strdup (p);
|
|
|
|
p = getenv ("LANG");
|
|
if (p != NULL)
|
|
return g_strdup (p);
|
|
|
|
return g_win32_getlocale ();
|
|
#else
|
|
return g_strdup (setlocale (LC_CTYPE, NULL));
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* gtk_get_default_language:
|
|
*
|
|
* Returns the #PangoLanguage for the default language currently in
|
|
* effect. (Note that this can change over the life of an
|
|
* application.) The default language is derived from the current
|
|
* locale. It determines, for example, whether GTK+ uses the
|
|
* right-to-left or left-to-right text direction.
|
|
*
|
|
* This function is equivalent to pango_language_get_default(). See
|
|
* that function for details.
|
|
*
|
|
* Return value: the default language as a #PangoLanguage, must not be
|
|
* freed
|
|
**/
|
|
PangoLanguage *
|
|
gtk_get_default_language (void)
|
|
{
|
|
return pango_language_get_default ();
|
|
}
|
|
|
|
void
|
|
gtk_main (void)
|
|
{
|
|
GList *tmp_list;
|
|
GList *functions;
|
|
GtkInitFunction *init;
|
|
GMainLoop *loop;
|
|
|
|
gtk_main_loop_level++;
|
|
|
|
loop = g_main_loop_new (NULL, TRUE);
|
|
main_loops = g_slist_prepend (main_loops, loop);
|
|
|
|
tmp_list = functions = init_functions;
|
|
init_functions = NULL;
|
|
|
|
while (tmp_list)
|
|
{
|
|
init = tmp_list->data;
|
|
tmp_list = tmp_list->next;
|
|
|
|
(* init->function) (init->data);
|
|
g_free (init);
|
|
}
|
|
g_list_free (functions);
|
|
|
|
if (g_main_loop_is_running (main_loops->data))
|
|
{
|
|
GDK_THREADS_LEAVE ();
|
|
g_main_loop_run (loop);
|
|
GDK_THREADS_ENTER ();
|
|
gdk_flush ();
|
|
}
|
|
|
|
if (quit_functions)
|
|
{
|
|
GList *reinvoke_list = NULL;
|
|
GtkQuitFunction *quitf;
|
|
|
|
while (quit_functions)
|
|
{
|
|
quitf = quit_functions->data;
|
|
|
|
tmp_list = quit_functions;
|
|
quit_functions = g_list_remove_link (quit_functions, quit_functions);
|
|
g_list_free_1 (tmp_list);
|
|
|
|
if ((quitf->main_level && quitf->main_level != gtk_main_loop_level) ||
|
|
gtk_quit_invoke_function (quitf))
|
|
{
|
|
reinvoke_list = g_list_prepend (reinvoke_list, quitf);
|
|
}
|
|
else
|
|
{
|
|
gtk_quit_destroy (quitf);
|
|
}
|
|
}
|
|
if (reinvoke_list)
|
|
{
|
|
GList *work;
|
|
|
|
work = g_list_last (reinvoke_list);
|
|
if (quit_functions)
|
|
quit_functions->prev = work;
|
|
work->next = quit_functions;
|
|
quit_functions = work;
|
|
}
|
|
|
|
gdk_flush ();
|
|
}
|
|
|
|
main_loops = g_slist_remove (main_loops, loop);
|
|
|
|
g_main_loop_unref (loop);
|
|
|
|
gtk_main_loop_level--;
|
|
|
|
if (gtk_main_loop_level == 0)
|
|
{
|
|
/* Try storing all clipboard data we have */
|
|
_gtk_clipboard_store_all ();
|
|
|
|
/* Synchronize the recent manager singleton */
|
|
_gtk_recent_manager_sync ();
|
|
}
|
|
}
|
|
|
|
guint
|
|
gtk_main_level (void)
|
|
{
|
|
return gtk_main_loop_level;
|
|
}
|
|
|
|
void
|
|
gtk_main_quit (void)
|
|
{
|
|
g_return_if_fail (main_loops != NULL);
|
|
|
|
g_main_loop_quit (main_loops->data);
|
|
}
|
|
|
|
gboolean
|
|
gtk_events_pending (void)
|
|
{
|
|
gboolean result;
|
|
|
|
GDK_THREADS_LEAVE ();
|
|
result = g_main_context_pending (NULL);
|
|
GDK_THREADS_ENTER ();
|
|
|
|
return result;
|
|
}
|
|
|
|
gboolean
|
|
gtk_main_iteration (void)
|
|
{
|
|
GDK_THREADS_LEAVE ();
|
|
g_main_context_iteration (NULL, TRUE);
|
|
GDK_THREADS_ENTER ();
|
|
|
|
if (main_loops)
|
|
return !g_main_loop_is_running (main_loops->data);
|
|
else
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
gtk_main_iteration_do (gboolean blocking)
|
|
{
|
|
GDK_THREADS_LEAVE ();
|
|
g_main_context_iteration (NULL, blocking);
|
|
GDK_THREADS_ENTER ();
|
|
|
|
if (main_loops)
|
|
return !g_main_loop_is_running (main_loops->data);
|
|
else
|
|
return TRUE;
|
|
}
|
|
|
|
/* private libgtk to libgdk interfaces
|
|
*/
|
|
gboolean gdk_device_grab_info_libgtk_only (GdkDisplay *display,
|
|
GdkDevice *device,
|
|
GdkWindow **grab_window,
|
|
gboolean *owner_events);
|
|
|
|
static void
|
|
rewrite_events_translate (GdkWindow *old_window,
|
|
GdkWindow *new_window,
|
|
gdouble *x,
|
|
gdouble *y)
|
|
{
|
|
gint old_origin_x, old_origin_y;
|
|
gint new_origin_x, new_origin_y;
|
|
|
|
gdk_window_get_origin (old_window, &old_origin_x, &old_origin_y);
|
|
gdk_window_get_origin (new_window, &new_origin_x, &new_origin_y);
|
|
|
|
*x += old_origin_x - new_origin_x;
|
|
*y += old_origin_y - new_origin_y;
|
|
}
|
|
|
|
static GdkEvent *
|
|
rewrite_event_for_window (GdkEvent *event,
|
|
GdkWindow *new_window)
|
|
{
|
|
event = gdk_event_copy (event);
|
|
|
|
switch (event->type)
|
|
{
|
|
case GDK_SCROLL:
|
|
rewrite_events_translate (event->any.window,
|
|
new_window,
|
|
&event->scroll.x, &event->scroll.y);
|
|
break;
|
|
case GDK_BUTTON_PRESS:
|
|
case GDK_2BUTTON_PRESS:
|
|
case GDK_3BUTTON_PRESS:
|
|
case GDK_BUTTON_RELEASE:
|
|
rewrite_events_translate (event->any.window,
|
|
new_window,
|
|
&event->button.x, &event->button.y);
|
|
break;
|
|
case GDK_MOTION_NOTIFY:
|
|
rewrite_events_translate (event->any.window,
|
|
new_window,
|
|
&event->motion.x, &event->motion.y);
|
|
break;
|
|
case GDK_KEY_PRESS:
|
|
case GDK_KEY_RELEASE:
|
|
case GDK_PROXIMITY_IN:
|
|
case GDK_PROXIMITY_OUT:
|
|
break;
|
|
|
|
default:
|
|
return event;
|
|
}
|
|
|
|
g_object_unref (event->any.window);
|
|
event->any.window = g_object_ref (new_window);
|
|
|
|
return event;
|
|
}
|
|
|
|
/* If there is a pointer or keyboard grab in effect with owner_events = TRUE,
|
|
* then what X11 does is deliver the event normally if it was going to this
|
|
* client, otherwise, delivers it in terms of the grab window. This function
|
|
* rewrites events to the effect that events going to the same window group
|
|
* are delivered normally, otherwise, the event is delivered in terms of the
|
|
* grab window.
|
|
*/
|
|
static GdkEvent *
|
|
rewrite_event_for_grabs (GdkEvent *event)
|
|
{
|
|
GdkWindow *grab_window;
|
|
GtkWidget *event_widget, *grab_widget;
|
|
gpointer grab_widget_ptr;
|
|
gboolean owner_events;
|
|
GdkDisplay *display;
|
|
GdkDevice *device;
|
|
|
|
switch (event->type)
|
|
{
|
|
case GDK_SCROLL:
|
|
case GDK_BUTTON_PRESS:
|
|
case GDK_2BUTTON_PRESS:
|
|
case GDK_3BUTTON_PRESS:
|
|
case GDK_BUTTON_RELEASE:
|
|
case GDK_MOTION_NOTIFY:
|
|
case GDK_PROXIMITY_IN:
|
|
case GDK_PROXIMITY_OUT:
|
|
case GDK_KEY_PRESS:
|
|
case GDK_KEY_RELEASE:
|
|
display = gdk_drawable_get_display (event->any.window);
|
|
device = gdk_event_get_device (event);
|
|
|
|
if (!gdk_device_grab_info_libgtk_only (display, device, &grab_window, &owner_events) ||
|
|
!owner_events)
|
|
return NULL;
|
|
break;
|
|
default:
|
|
return NULL;
|
|
}
|
|
|
|
event_widget = gtk_get_event_widget (event);
|
|
gdk_window_get_user_data (grab_window, &grab_widget_ptr);
|
|
grab_widget = grab_widget_ptr;
|
|
|
|
if (grab_widget &&
|
|
gtk_main_get_window_group (grab_widget) != gtk_main_get_window_group (event_widget))
|
|
return rewrite_event_for_window (event, grab_window);
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
gtk_main_do_event (GdkEvent *event)
|
|
{
|
|
GtkWidget *event_widget;
|
|
GtkWidget *grab_widget = NULL;
|
|
GtkWindowGroup *window_group;
|
|
GdkEvent *rewritten_event = NULL;
|
|
GdkDevice *device;
|
|
GList *tmp_list;
|
|
|
|
if (event->type == GDK_SETTING)
|
|
{
|
|
_gtk_settings_handle_event (&event->setting);
|
|
return;
|
|
}
|
|
|
|
if (event->type == GDK_OWNER_CHANGE)
|
|
{
|
|
_gtk_clipboard_handle_event (&event->owner_change);
|
|
return;
|
|
}
|
|
|
|
/* Find the widget which got the event. We store the widget
|
|
* in the user_data field of GdkWindow's.
|
|
* Ignore the event if we don't have a widget for it, except
|
|
* for GDK_PROPERTY_NOTIFY events which are handled specialy.
|
|
* Though this happens rarely, bogus events can occour
|
|
* for e.g. destroyed GdkWindows.
|
|
*/
|
|
event_widget = gtk_get_event_widget (event);
|
|
if (!event_widget)
|
|
{
|
|
/* To handle selection INCR transactions, we select
|
|
* PropertyNotify events on the requestor window and create
|
|
* a corresponding (fake) GdkWindow so that events get
|
|
* here. There won't be a widget though, so we have to handle
|
|
* them specially
|
|
*/
|
|
if (event->type == GDK_PROPERTY_NOTIFY)
|
|
_gtk_selection_incr_event (event->any.window,
|
|
&event->property);
|
|
|
|
return;
|
|
}
|
|
|
|
/* If pointer or keyboard grabs are in effect, munge the events
|
|
* so that each window group looks like a separate app.
|
|
*/
|
|
rewritten_event = rewrite_event_for_grabs (event);
|
|
if (rewritten_event)
|
|
{
|
|
event = rewritten_event;
|
|
event_widget = gtk_get_event_widget (event);
|
|
}
|
|
|
|
window_group = gtk_main_get_window_group (event_widget);
|
|
device = gdk_event_get_device (event);
|
|
|
|
/* check whether there is a (device) grab in effect...
|
|
*/
|
|
if (device)
|
|
grab_widget = gtk_window_group_get_current_device_grab (window_group, device);
|
|
|
|
if (!grab_widget && window_group->grabs)
|
|
grab_widget = window_group->grabs->data;
|
|
|
|
/* If the grab widget is an ancestor of the event widget
|
|
* then we send the event to the original event widget.
|
|
* This is the key to implementing modality.
|
|
*/
|
|
if (!grab_widget ||
|
|
(gtk_widget_is_sensitive (event_widget) &&
|
|
gtk_widget_is_ancestor (event_widget, grab_widget)))
|
|
grab_widget = event_widget;
|
|
|
|
/* If the widget receiving events is actually blocked by another device GTK+ grab */
|
|
if (device &&
|
|
_gtk_window_group_widget_is_blocked_for_device (window_group, grab_widget, device))
|
|
{
|
|
if (rewritten_event)
|
|
gdk_event_free (rewritten_event);
|
|
|
|
return;
|
|
}
|
|
|
|
/* Push the event onto a stack of current events for
|
|
* gtk_current_event_get().
|
|
*/
|
|
current_events = g_list_prepend (current_events, event);
|
|
|
|
/* Not all events get sent to the grabbing widget.
|
|
* The delete, destroy, expose, focus change and resize
|
|
* events still get sent to the event widget because
|
|
* 1) these events have no meaning for the grabbing widget
|
|
* and 2) redirecting these events to the grabbing widget
|
|
* could cause the display to be messed up.
|
|
*
|
|
* Drag events are also not redirected, since it isn't
|
|
* clear what the semantics of that would be.
|
|
*/
|
|
switch (event->type)
|
|
{
|
|
case GDK_NOTHING:
|
|
break;
|
|
|
|
case GDK_DELETE:
|
|
g_object_ref (event_widget);
|
|
if ((!window_group->grabs || gtk_widget_get_toplevel (window_group->grabs->data) == event_widget) &&
|
|
!gtk_widget_event (event_widget, event))
|
|
gtk_widget_destroy (event_widget);
|
|
g_object_unref (event_widget);
|
|
break;
|
|
|
|
case GDK_DESTROY:
|
|
/* Unexpected GDK_DESTROY from the outside, ignore for
|
|
* child windows, handle like a GDK_DELETE for toplevels
|
|
*/
|
|
if (!event_widget->parent)
|
|
{
|
|
g_object_ref (event_widget);
|
|
if (!gtk_widget_event (event_widget, event) &&
|
|
gtk_widget_get_realized (event_widget))
|
|
gtk_widget_destroy (event_widget);
|
|
g_object_unref (event_widget);
|
|
}
|
|
break;
|
|
|
|
case GDK_EXPOSE:
|
|
if (event->any.window && gtk_widget_get_double_buffered (event_widget))
|
|
{
|
|
gdk_window_begin_paint_region (event->any.window, event->expose.region);
|
|
gtk_widget_send_expose (event_widget, event);
|
|
gdk_window_end_paint (event->any.window);
|
|
}
|
|
else
|
|
{
|
|
/* The app may paint with a previously allocated cairo_t,
|
|
which will draw directly to the window. We can't catch cairo
|
|
drap operatoins to automatically flush the window, thus we
|
|
need to explicitly flush any outstanding moves or double
|
|
buffering */
|
|
gdk_window_flush (event->any.window);
|
|
gtk_widget_send_expose (event_widget, event);
|
|
}
|
|
break;
|
|
|
|
case GDK_PROPERTY_NOTIFY:
|
|
case GDK_NO_EXPOSE:
|
|
case GDK_FOCUS_CHANGE:
|
|
case GDK_CONFIGURE:
|
|
case GDK_MAP:
|
|
case GDK_UNMAP:
|
|
case GDK_SELECTION_CLEAR:
|
|
case GDK_SELECTION_REQUEST:
|
|
case GDK_SELECTION_NOTIFY:
|
|
case GDK_CLIENT_EVENT:
|
|
case GDK_VISIBILITY_NOTIFY:
|
|
case GDK_WINDOW_STATE:
|
|
case GDK_GRAB_BROKEN:
|
|
case GDK_DAMAGE:
|
|
gtk_widget_event (event_widget, event);
|
|
break;
|
|
|
|
case GDK_SCROLL:
|
|
case GDK_BUTTON_PRESS:
|
|
case GDK_2BUTTON_PRESS:
|
|
case GDK_3BUTTON_PRESS:
|
|
gtk_propagate_event (grab_widget, event);
|
|
break;
|
|
|
|
case GDK_KEY_PRESS:
|
|
case GDK_KEY_RELEASE:
|
|
if (key_snoopers)
|
|
{
|
|
if (gtk_invoke_key_snoopers (grab_widget, event))
|
|
break;
|
|
}
|
|
/* Catch alt press to enable auto-mnemonics;
|
|
* menus are handled elsewhere
|
|
*/
|
|
if ((event->key.keyval == GDK_Alt_L || event->key.keyval == GDK_Alt_R) &&
|
|
!GTK_IS_MENU_SHELL (grab_widget))
|
|
{
|
|
gboolean auto_mnemonics;
|
|
|
|
g_object_get (gtk_widget_get_settings (grab_widget),
|
|
"gtk-auto-mnemonics", &auto_mnemonics, NULL);
|
|
|
|
if (auto_mnemonics)
|
|
{
|
|
gboolean mnemonics_visible;
|
|
GtkWidget *window;
|
|
|
|
mnemonics_visible = (event->type == GDK_KEY_PRESS);
|
|
|
|
window = gtk_widget_get_toplevel (grab_widget);
|
|
|
|
if (GTK_IS_WINDOW (window))
|
|
gtk_window_set_mnemonics_visible (GTK_WINDOW (window), mnemonics_visible);
|
|
}
|
|
}
|
|
/* else fall through */
|
|
case GDK_MOTION_NOTIFY:
|
|
case GDK_BUTTON_RELEASE:
|
|
case GDK_PROXIMITY_IN:
|
|
case GDK_PROXIMITY_OUT:
|
|
gtk_propagate_event (grab_widget, event);
|
|
break;
|
|
|
|
case GDK_ENTER_NOTIFY:
|
|
_gtk_widget_set_device_window (event_widget,
|
|
gdk_event_get_device (event),
|
|
event->any.window);
|
|
if (gtk_widget_is_sensitive (grab_widget))
|
|
gtk_widget_event (grab_widget, event);
|
|
break;
|
|
|
|
case GDK_LEAVE_NOTIFY:
|
|
_gtk_widget_set_device_window (event_widget,
|
|
gdk_event_get_device (event),
|
|
NULL);
|
|
if (gtk_widget_is_sensitive (grab_widget))
|
|
gtk_widget_event (grab_widget, event);
|
|
break;
|
|
|
|
case GDK_DRAG_STATUS:
|
|
case GDK_DROP_FINISHED:
|
|
_gtk_drag_source_handle_event (event_widget, event);
|
|
break;
|
|
case GDK_DRAG_ENTER:
|
|
case GDK_DRAG_LEAVE:
|
|
case GDK_DRAG_MOTION:
|
|
case GDK_DROP_START:
|
|
_gtk_drag_dest_handle_event (event_widget, event);
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
|
|
if (event->type == GDK_ENTER_NOTIFY
|
|
|| event->type == GDK_LEAVE_NOTIFY
|
|
|| event->type == GDK_BUTTON_PRESS
|
|
|| event->type == GDK_2BUTTON_PRESS
|
|
|| event->type == GDK_3BUTTON_PRESS
|
|
|| event->type == GDK_KEY_PRESS
|
|
|| event->type == GDK_DRAG_ENTER
|
|
|| event->type == GDK_GRAB_BROKEN
|
|
|| event->type == GDK_MOTION_NOTIFY
|
|
|| event->type == GDK_SCROLL)
|
|
{
|
|
_gtk_tooltip_handle_event (event);
|
|
}
|
|
|
|
tmp_list = current_events;
|
|
current_events = g_list_remove_link (current_events, tmp_list);
|
|
g_list_free_1 (tmp_list);
|
|
|
|
if (rewritten_event)
|
|
gdk_event_free (rewritten_event);
|
|
}
|
|
|
|
gboolean
|
|
gtk_true (void)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
gtk_false (void)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
static GtkWindowGroup *
|
|
gtk_main_get_window_group (GtkWidget *widget)
|
|
{
|
|
GtkWidget *toplevel = NULL;
|
|
|
|
if (widget)
|
|
toplevel = gtk_widget_get_toplevel (widget);
|
|
|
|
if (GTK_IS_WINDOW (toplevel))
|
|
return gtk_window_get_group (GTK_WINDOW (toplevel));
|
|
else
|
|
return gtk_window_get_group (NULL);
|
|
}
|
|
|
|
typedef struct
|
|
{
|
|
GtkWidget *old_grab_widget;
|
|
GtkWidget *new_grab_widget;
|
|
gboolean was_grabbed;
|
|
gboolean is_grabbed;
|
|
gboolean from_grab;
|
|
GList *notified_windows;
|
|
GdkDevice *device;
|
|
} GrabNotifyInfo;
|
|
|
|
static void
|
|
synth_crossing_for_grab_notify (GtkWidget *from,
|
|
GtkWidget *to,
|
|
GrabNotifyInfo *info,
|
|
GList *devices,
|
|
GdkCrossingMode mode)
|
|
{
|
|
while (devices)
|
|
{
|
|
GdkDevice *device = devices->data;
|
|
GdkWindow *from_window, *to_window;
|
|
|
|
/* Do not propagate events more than once to
|
|
* the same windows if non-multidevice aware.
|
|
*/
|
|
if (!from)
|
|
from_window = NULL;
|
|
else
|
|
{
|
|
from_window = _gtk_widget_get_device_window (from, device);
|
|
|
|
if (from_window &&
|
|
!gdk_window_get_support_multidevice (from_window) &&
|
|
g_list_find (info->notified_windows, from_window))
|
|
from_window = NULL;
|
|
}
|
|
|
|
if (!to)
|
|
to_window = NULL;
|
|
else
|
|
{
|
|
to_window = _gtk_widget_get_device_window (to, device);
|
|
|
|
if (to_window &&
|
|
!gdk_window_get_support_multidevice (to_window) &&
|
|
g_list_find (info->notified_windows, to_window))
|
|
to_window = NULL;
|
|
}
|
|
|
|
if (from_window || to_window)
|
|
{
|
|
_gtk_widget_synthesize_crossing ((from_window) ? from : NULL,
|
|
(to_window) ? to : NULL,
|
|
device, mode);
|
|
|
|
if (from_window)
|
|
info->notified_windows = g_list_prepend (info->notified_windows, from_window);
|
|
|
|
if (to_window)
|
|
info->notified_windows = g_list_prepend (info->notified_windows, to_window);
|
|
}
|
|
|
|
devices = devices->next;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_grab_notify_foreach (GtkWidget *child,
|
|
gpointer data)
|
|
{
|
|
GrabNotifyInfo *info = data;
|
|
gboolean was_grabbed, is_grabbed, was_shadowed, is_shadowed;
|
|
GList *devices;
|
|
|
|
was_grabbed = info->was_grabbed;
|
|
is_grabbed = info->is_grabbed;
|
|
|
|
info->was_grabbed = info->was_grabbed || (child == info->old_grab_widget);
|
|
info->is_grabbed = info->is_grabbed || (child == info->new_grab_widget);
|
|
|
|
was_shadowed = info->old_grab_widget && !info->was_grabbed;
|
|
is_shadowed = info->new_grab_widget && !info->is_grabbed;
|
|
|
|
g_object_ref (child);
|
|
|
|
if ((was_shadowed || is_shadowed) && GTK_IS_CONTAINER (child))
|
|
gtk_container_forall (GTK_CONTAINER (child), gtk_grab_notify_foreach, info);
|
|
|
|
if (info->device &&
|
|
_gtk_widget_get_device_window (child, info->device))
|
|
{
|
|
/* Device specified and is on widget */
|
|
devices = g_list_prepend (NULL, info->device);
|
|
}
|
|
else
|
|
devices = _gtk_widget_list_devices (child);
|
|
|
|
if (is_shadowed)
|
|
{
|
|
GTK_PRIVATE_SET_FLAG (child, GTK_SHADOWED);
|
|
if (!was_shadowed && devices &&
|
|
gtk_widget_is_sensitive (child))
|
|
synth_crossing_for_grab_notify (child, info->new_grab_widget,
|
|
info, devices,
|
|
GDK_CROSSING_GTK_GRAB);
|
|
}
|
|
else
|
|
{
|
|
GTK_PRIVATE_UNSET_FLAG (child, GTK_SHADOWED);
|
|
if (was_shadowed && devices &&
|
|
gtk_widget_is_sensitive (child))
|
|
synth_crossing_for_grab_notify (info->old_grab_widget, child,
|
|
info, devices,
|
|
info->from_grab ? GDK_CROSSING_GTK_GRAB :
|
|
GDK_CROSSING_GTK_UNGRAB);
|
|
}
|
|
|
|
if (was_shadowed != is_shadowed)
|
|
_gtk_widget_grab_notify (child, was_shadowed);
|
|
|
|
g_object_unref (child);
|
|
g_list_free (devices);
|
|
|
|
info->was_grabbed = was_grabbed;
|
|
info->is_grabbed = is_grabbed;
|
|
}
|
|
|
|
static void
|
|
gtk_grab_notify (GtkWindowGroup *group,
|
|
GdkDevice *device,
|
|
GtkWidget *old_grab_widget,
|
|
GtkWidget *new_grab_widget,
|
|
gboolean from_grab)
|
|
{
|
|
GList *toplevels;
|
|
GrabNotifyInfo info = { 0 };
|
|
|
|
if (old_grab_widget == new_grab_widget)
|
|
return;
|
|
|
|
info.old_grab_widget = old_grab_widget;
|
|
info.new_grab_widget = new_grab_widget;
|
|
info.from_grab = from_grab;
|
|
info.device = device;
|
|
|
|
g_object_ref (group);
|
|
|
|
toplevels = gtk_window_list_toplevels ();
|
|
g_list_foreach (toplevels, (GFunc)g_object_ref, NULL);
|
|
|
|
while (toplevels)
|
|
{
|
|
GtkWindow *toplevel = toplevels->data;
|
|
toplevels = g_list_delete_link (toplevels, toplevels);
|
|
|
|
info.was_grabbed = FALSE;
|
|
info.is_grabbed = FALSE;
|
|
|
|
if (group == gtk_window_get_group (toplevel))
|
|
gtk_grab_notify_foreach (GTK_WIDGET (toplevel), &info);
|
|
g_object_unref (toplevel);
|
|
}
|
|
|
|
g_list_free (info.notified_windows);
|
|
g_object_unref (group);
|
|
}
|
|
|
|
void
|
|
gtk_grab_add (GtkWidget *widget)
|
|
{
|
|
GtkWindowGroup *group;
|
|
GtkWidget *old_grab_widget;
|
|
|
|
g_return_if_fail (widget != NULL);
|
|
|
|
if (!gtk_widget_has_grab (widget) && gtk_widget_is_sensitive (widget))
|
|
{
|
|
_gtk_widget_set_has_grab (widget, TRUE);
|
|
|
|
group = gtk_main_get_window_group (widget);
|
|
|
|
if (group->grabs)
|
|
old_grab_widget = (GtkWidget *)group->grabs->data;
|
|
else
|
|
old_grab_widget = NULL;
|
|
|
|
g_object_ref (widget);
|
|
group->grabs = g_slist_prepend (group->grabs, widget);
|
|
|
|
gtk_grab_notify (group, NULL, old_grab_widget, widget, TRUE);
|
|
}
|
|
}
|
|
|
|
GtkWidget*
|
|
gtk_grab_get_current (void)
|
|
{
|
|
GtkWindowGroup *group;
|
|
|
|
group = gtk_main_get_window_group (NULL);
|
|
|
|
if (group->grabs)
|
|
return GTK_WIDGET (group->grabs->data);
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
gtk_grab_remove (GtkWidget *widget)
|
|
{
|
|
GtkWindowGroup *group;
|
|
GtkWidget *new_grab_widget;
|
|
|
|
g_return_if_fail (widget != NULL);
|
|
|
|
if (gtk_widget_has_grab (widget))
|
|
{
|
|
_gtk_widget_set_has_grab (widget, FALSE);
|
|
|
|
group = gtk_main_get_window_group (widget);
|
|
group->grabs = g_slist_remove (group->grabs, widget);
|
|
|
|
if (group->grabs)
|
|
new_grab_widget = (GtkWidget *)group->grabs->data;
|
|
else
|
|
new_grab_widget = NULL;
|
|
|
|
gtk_grab_notify (group, NULL, widget, new_grab_widget, FALSE);
|
|
|
|
g_object_unref (widget);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_device_grab_add:
|
|
* @widget: a #GtkWidget
|
|
* @device: a #GtkDevice to grab on.
|
|
* @block_others: %TRUE to prevent other devices to interact with @widget.
|
|
*
|
|
* Adds a GTK+ grab on @device, so all the events on @device and its
|
|
* associated pointer or keyboard (if any) are delivered to @widget.
|
|
* If the @block_others parameter is %TRUE, any other devices will be
|
|
* unable to interact with @widget during the grab.
|
|
*
|
|
* Since: 3.0
|
|
**/
|
|
void
|
|
gtk_device_grab_add (GtkWidget *widget,
|
|
GdkDevice *device,
|
|
gboolean block_others)
|
|
{
|
|
GtkWindowGroup *group;
|
|
GtkWidget *old_grab_widget;
|
|
|
|
g_return_if_fail (GTK_IS_WIDGET (widget));
|
|
g_return_if_fail (GDK_IS_DEVICE (device));
|
|
|
|
group = gtk_main_get_window_group (widget);
|
|
old_grab_widget = gtk_window_group_get_current_device_grab (group, device);
|
|
|
|
if (old_grab_widget != widget)
|
|
_gtk_window_group_add_device_grab (group, widget, device, block_others);
|
|
|
|
gtk_grab_notify (group, device, old_grab_widget, widget, TRUE);
|
|
}
|
|
|
|
/**
|
|
* gtk_device_grab_remove:
|
|
* @widget: a #GtkWidget
|
|
* @device: a #GdkDevice
|
|
*
|
|
* Removes a device grab from the given widget. You have to pair calls
|
|
* to gtk_device_grab_add() and gtk_device_grab_remove().
|
|
*
|
|
* Since: 3.0
|
|
**/
|
|
void
|
|
gtk_device_grab_remove (GtkWidget *widget,
|
|
GdkDevice *device)
|
|
{
|
|
GtkWindowGroup *group;
|
|
GtkWidget *new_grab_widget;
|
|
|
|
g_return_if_fail (GTK_IS_WIDGET (widget));
|
|
g_return_if_fail (GDK_IS_DEVICE (device));
|
|
|
|
group = gtk_main_get_window_group (widget);
|
|
_gtk_window_group_remove_device_grab (group, widget, device);
|
|
new_grab_widget = gtk_window_group_get_current_device_grab (group, device);
|
|
|
|
gtk_grab_notify (group, device, widget, new_grab_widget, FALSE);
|
|
}
|
|
|
|
void
|
|
gtk_init_add (GtkFunction function,
|
|
gpointer data)
|
|
{
|
|
GtkInitFunction *init;
|
|
|
|
init = g_new (GtkInitFunction, 1);
|
|
init->function = function;
|
|
init->data = data;
|
|
|
|
init_functions = g_list_prepend (init_functions, init);
|
|
}
|
|
|
|
guint
|
|
gtk_key_snooper_install (GtkKeySnoopFunc snooper,
|
|
gpointer func_data)
|
|
{
|
|
GtkKeySnooperData *data;
|
|
static guint snooper_id = 1;
|
|
|
|
g_return_val_if_fail (snooper != NULL, 0);
|
|
|
|
data = g_new (GtkKeySnooperData, 1);
|
|
data->func = snooper;
|
|
data->func_data = func_data;
|
|
data->id = snooper_id++;
|
|
key_snoopers = g_slist_prepend (key_snoopers, data);
|
|
|
|
return data->id;
|
|
}
|
|
|
|
void
|
|
gtk_key_snooper_remove (guint snooper_id)
|
|
{
|
|
GtkKeySnooperData *data = NULL;
|
|
GSList *slist;
|
|
|
|
slist = key_snoopers;
|
|
while (slist)
|
|
{
|
|
data = slist->data;
|
|
if (data->id == snooper_id)
|
|
break;
|
|
|
|
slist = slist->next;
|
|
data = NULL;
|
|
}
|
|
if (data)
|
|
{
|
|
key_snoopers = g_slist_remove (key_snoopers, data);
|
|
g_free (data);
|
|
}
|
|
}
|
|
|
|
static gint
|
|
gtk_invoke_key_snoopers (GtkWidget *grab_widget,
|
|
GdkEvent *event)
|
|
{
|
|
GSList *slist;
|
|
gint return_val = FALSE;
|
|
|
|
slist = key_snoopers;
|
|
while (slist && !return_val)
|
|
{
|
|
GtkKeySnooperData *data;
|
|
|
|
data = slist->data;
|
|
slist = slist->next;
|
|
return_val = (*data->func) (grab_widget, (GdkEventKey*) event, data->func_data);
|
|
}
|
|
|
|
return return_val;
|
|
}
|
|
|
|
guint
|
|
gtk_quit_add_full (guint main_level,
|
|
GtkFunction function,
|
|
GtkCallbackMarshal marshal,
|
|
gpointer data,
|
|
GDestroyNotify destroy)
|
|
{
|
|
static guint quit_id = 1;
|
|
GtkQuitFunction *quitf;
|
|
|
|
g_return_val_if_fail ((function != NULL) || (marshal != NULL), 0);
|
|
|
|
quitf = g_slice_new (GtkQuitFunction);
|
|
|
|
quitf->id = quit_id++;
|
|
quitf->main_level = main_level;
|
|
quitf->function = function;
|
|
quitf->marshal = marshal;
|
|
quitf->data = data;
|
|
quitf->destroy = destroy;
|
|
|
|
quit_functions = g_list_prepend (quit_functions, quitf);
|
|
|
|
return quitf->id;
|
|
}
|
|
|
|
static void
|
|
gtk_quit_destroy (GtkQuitFunction *quitf)
|
|
{
|
|
if (quitf->destroy)
|
|
quitf->destroy (quitf->data);
|
|
g_slice_free (GtkQuitFunction, quitf);
|
|
}
|
|
|
|
static gint
|
|
gtk_quit_destructor (GtkObject **object_p)
|
|
{
|
|
if (*object_p)
|
|
gtk_object_destroy (*object_p);
|
|
g_free (object_p);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
void
|
|
gtk_quit_add_destroy (guint main_level,
|
|
GtkObject *object)
|
|
{
|
|
GtkObject **object_p;
|
|
|
|
g_return_if_fail (main_level > 0);
|
|
g_return_if_fail (GTK_IS_OBJECT (object));
|
|
|
|
object_p = g_new (GtkObject*, 1);
|
|
*object_p = object;
|
|
g_signal_connect (object,
|
|
"destroy",
|
|
G_CALLBACK (gtk_widget_destroyed),
|
|
object_p);
|
|
gtk_quit_add (main_level, (GtkFunction) gtk_quit_destructor, object_p);
|
|
}
|
|
|
|
guint
|
|
gtk_quit_add (guint main_level,
|
|
GtkFunction function,
|
|
gpointer data)
|
|
{
|
|
return gtk_quit_add_full (main_level, function, NULL, data, NULL);
|
|
}
|
|
|
|
void
|
|
gtk_quit_remove (guint id)
|
|
{
|
|
GtkQuitFunction *quitf;
|
|
GList *tmp_list;
|
|
|
|
tmp_list = quit_functions;
|
|
while (tmp_list)
|
|
{
|
|
quitf = tmp_list->data;
|
|
|
|
if (quitf->id == id)
|
|
{
|
|
quit_functions = g_list_remove_link (quit_functions, tmp_list);
|
|
g_list_free (tmp_list);
|
|
gtk_quit_destroy (quitf);
|
|
|
|
return;
|
|
}
|
|
|
|
tmp_list = tmp_list->next;
|
|
}
|
|
}
|
|
|
|
void
|
|
gtk_quit_remove_by_data (gpointer data)
|
|
{
|
|
GtkQuitFunction *quitf;
|
|
GList *tmp_list;
|
|
|
|
tmp_list = quit_functions;
|
|
while (tmp_list)
|
|
{
|
|
quitf = tmp_list->data;
|
|
|
|
if (quitf->data == data)
|
|
{
|
|
quit_functions = g_list_remove_link (quit_functions, tmp_list);
|
|
g_list_free (tmp_list);
|
|
gtk_quit_destroy (quitf);
|
|
|
|
return;
|
|
}
|
|
|
|
tmp_list = tmp_list->next;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_get_current_event:
|
|
*
|
|
* Obtains a copy of the event currently being processed by GTK+. For
|
|
* example, if you get a "clicked" signal from #GtkButton, the current
|
|
* event will be the #GdkEventButton that triggered the "clicked"
|
|
* signal. The returned event must be freed with gdk_event_free().
|
|
* If there is no current event, the function returns %NULL.
|
|
*
|
|
* Return value: a copy of the current event, or %NULL if no current event.
|
|
**/
|
|
GdkEvent*
|
|
gtk_get_current_event (void)
|
|
{
|
|
if (current_events)
|
|
return gdk_event_copy (current_events->data);
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* gtk_get_current_event_time:
|
|
*
|
|
* If there is a current event and it has a timestamp, return that
|
|
* timestamp, otherwise return %GDK_CURRENT_TIME.
|
|
*
|
|
* Return value: the timestamp from the current event, or %GDK_CURRENT_TIME.
|
|
**/
|
|
guint32
|
|
gtk_get_current_event_time (void)
|
|
{
|
|
if (current_events)
|
|
return gdk_event_get_time (current_events->data);
|
|
else
|
|
return GDK_CURRENT_TIME;
|
|
}
|
|
|
|
/**
|
|
* gtk_get_current_event_state:
|
|
* @state: a location to store the state of the current event
|
|
*
|
|
* If there is a current event and it has a state field, place
|
|
* that state field in @state and return %TRUE, otherwise return
|
|
* %FALSE.
|
|
*
|
|
* Return value: %TRUE if there was a current event and it had a state field
|
|
**/
|
|
gboolean
|
|
gtk_get_current_event_state (GdkModifierType *state)
|
|
{
|
|
g_return_val_if_fail (state != NULL, FALSE);
|
|
|
|
if (current_events)
|
|
return gdk_event_get_state (current_events->data, state);
|
|
else
|
|
{
|
|
*state = 0;
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_get_current_event_device:
|
|
*
|
|
* If there is a current event and it has a device, return that
|
|
* device, otherwise return %NULL.
|
|
*
|
|
* Returns: a #GdkDevice, or %NULL
|
|
**/
|
|
GdkDevice *
|
|
gtk_get_current_event_device (void)
|
|
{
|
|
if (current_events)
|
|
return gdk_event_get_device (current_events->data);
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* gtk_get_event_widget:
|
|
* @event: a #GdkEvent
|
|
*
|
|
* If @event is %NULL or the event was not associated with any widget,
|
|
* returns %NULL, otherwise returns the widget that received the event
|
|
* originally.
|
|
*
|
|
* Return value: the widget that originally received @event, or %NULL
|
|
**/
|
|
GtkWidget*
|
|
gtk_get_event_widget (GdkEvent *event)
|
|
{
|
|
GtkWidget *widget;
|
|
gpointer widget_ptr;
|
|
|
|
widget = NULL;
|
|
if (event && event->any.window &&
|
|
(event->type == GDK_DESTROY || !GDK_WINDOW_DESTROYED (event->any.window)))
|
|
{
|
|
gdk_window_get_user_data (event->any.window, &widget_ptr);
|
|
widget = widget_ptr;
|
|
}
|
|
|
|
return widget;
|
|
}
|
|
|
|
static gint
|
|
gtk_quit_invoke_function (GtkQuitFunction *quitf)
|
|
{
|
|
if (!quitf->marshal)
|
|
return quitf->function (quitf->data);
|
|
else
|
|
{
|
|
GtkArg args[1];
|
|
gint ret_val = FALSE;
|
|
|
|
args[0].name = NULL;
|
|
args[0].type = G_TYPE_BOOLEAN;
|
|
args[0].d.pointer_data = &ret_val;
|
|
((GtkCallbackMarshal) quitf->marshal) (NULL,
|
|
quitf->data,
|
|
0, args);
|
|
return ret_val;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_propagate_event:
|
|
* @widget: a #GtkWidget
|
|
* @event: an event
|
|
*
|
|
* Sends an event to a widget, propagating the event to parent widgets
|
|
* if the event remains unhandled. Events received by GTK+ from GDK
|
|
* normally begin in gtk_main_do_event(). Depending on the type of
|
|
* event, existence of modal dialogs, grabs, etc., the event may be
|
|
* propagated; if so, this function is used. gtk_propagate_event()
|
|
* calls gtk_widget_event() on each widget it decides to send the
|
|
* event to. So gtk_widget_event() is the lowest-level function; it
|
|
* simply emits the "event" and possibly an event-specific signal on a
|
|
* widget. gtk_propagate_event() is a bit higher-level, and
|
|
* gtk_main_do_event() is the highest level.
|
|
*
|
|
* All that said, you most likely don't want to use any of these
|
|
* functions; synthesizing events is rarely needed. Consider asking on
|
|
* the mailing list for better ways to achieve your goals. For
|
|
* example, use gdk_window_invalidate_rect() or
|
|
* gtk_widget_queue_draw() instead of making up expose events.
|
|
*
|
|
**/
|
|
void
|
|
gtk_propagate_event (GtkWidget *widget,
|
|
GdkEvent *event)
|
|
{
|
|
gint handled_event;
|
|
|
|
g_return_if_fail (GTK_IS_WIDGET (widget));
|
|
g_return_if_fail (event != NULL);
|
|
|
|
handled_event = FALSE;
|
|
|
|
g_object_ref (widget);
|
|
|
|
if ((event->type == GDK_KEY_PRESS) ||
|
|
(event->type == GDK_KEY_RELEASE))
|
|
{
|
|
/* Only send key events within Window widgets to the Window
|
|
* The Window widget will in turn pass the
|
|
* key event on to the currently focused widget
|
|
* for that window.
|
|
*/
|
|
GtkWidget *window;
|
|
|
|
window = gtk_widget_get_toplevel (widget);
|
|
if (GTK_IS_WINDOW (window))
|
|
{
|
|
/* If there is a grab within the window, give the grab widget
|
|
* a first crack at the key event
|
|
*/
|
|
if (widget != window && gtk_widget_has_grab (widget))
|
|
handled_event = gtk_widget_event (widget, event);
|
|
|
|
if (!handled_event)
|
|
{
|
|
window = gtk_widget_get_toplevel (widget);
|
|
if (GTK_IS_WINDOW (window))
|
|
{
|
|
if (gtk_widget_is_sensitive (window))
|
|
gtk_widget_event (window, event);
|
|
}
|
|
}
|
|
|
|
handled_event = TRUE; /* don't send to widget */
|
|
}
|
|
}
|
|
|
|
/* Other events get propagated up the widget tree
|
|
* so that parents can see the button and motion
|
|
* events of the children.
|
|
*/
|
|
if (!handled_event)
|
|
{
|
|
while (TRUE)
|
|
{
|
|
GtkWidget *tmp;
|
|
|
|
/* Scroll events are special cased here because it
|
|
* feels wrong when scrolling a GtkViewport, say,
|
|
* to have children of the viewport eat the scroll
|
|
* event
|
|
*/
|
|
if (!gtk_widget_is_sensitive (widget))
|
|
handled_event = event->type != GDK_SCROLL;
|
|
else
|
|
handled_event = gtk_widget_event (widget, event);
|
|
|
|
tmp = widget->parent;
|
|
g_object_unref (widget);
|
|
|
|
widget = tmp;
|
|
|
|
if (!handled_event && widget)
|
|
g_object_ref (widget);
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
g_object_unref (widget);
|
|
}
|
|
|
|
gboolean
|
|
_gtk_boolean_handled_accumulator (GSignalInvocationHint *ihint,
|
|
GValue *return_accu,
|
|
const GValue *handler_return,
|
|
gpointer dummy)
|
|
{
|
|
gboolean continue_emission;
|
|
gboolean signal_handled;
|
|
|
|
signal_handled = g_value_get_boolean (handler_return);
|
|
g_value_set_boolean (return_accu, signal_handled);
|
|
continue_emission = !signal_handled;
|
|
|
|
return continue_emission;
|
|
}
|
|
|
|
#define __GTK_MAIN_C__
|
|
#include "gtkaliasdef.c"
|