/* GTK - The GIMP Toolkit * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library. If not, see <http://www.gnu.org/licenses/>.Free */ /* * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS * file for a list of people on the GTK+ Team. See the ChangeLog * files for a list of changes. These files are distributed with * GTK+ at ftp://ftp.gtk.org/pub/gtk/. */ #include "config.h" #include <errno.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <glib/gstdio.h> #include <gmodule.h> #include "gtkimmodule.h" #include "gtkimmoduleprivate.h" #include "gtkimcontextsimple.h" #include "gtkmodulesprivate.h" #include "gtksettings.h" #include "gtkprivate.h" #include "gtkintl.h" #ifdef GDK_WINDOWING_X11 #include "x11/gdkx.h" #endif #ifdef GDK_WINDOWING_WAYLAND #include "wayland/gdkwayland.h" #include "gtkimcontextwayland.h" #endif #ifdef GDK_WINDOWING_BROADWAY #include "broadway/gdkbroadway.h" #include "gtkimcontextbroadway.h" #endif #ifdef GDK_WINDOWING_WIN32 #include "win32/gdkwin32.h" #include "gtkimcontextime.h" #endif #ifdef GDK_WINDOWING_MACOS #include "macos/gdkmacos.h" #include "gtkimcontextquartz.h" #endif #ifdef G_OS_WIN32 #include <windows.h> #endif #define SIMPLE_ID "gtk-im-context-simple" #define NONE_ID "gtk-im-context-none" /** * _gtk_im_module_create: * @context_id: the context ID for the context type to create * * Create an IM context of a type specified by the string * ID @context_id. * * Returns: a newly created input context of or @context_id, or * if that could not be created, a newly created GtkIMContextSimple. */ GtkIMContext * _gtk_im_module_create (const char *context_id) { GIOExtensionPoint *ep; GIOExtension *ext; GType type; GtkIMContext *context = NULL; if (strcmp (context_id, NONE_ID) == 0) return NULL; ep = g_io_extension_point_lookup (GTK_IM_MODULE_EXTENSION_POINT_NAME); ext = g_io_extension_point_get_extension_by_name (ep, context_id); if (ext) { type = g_io_extension_get_type (ext); context = g_object_new (type, NULL); } return context; } static gboolean match_backend (GdkDisplay *display, const char *context_id) { if (g_strcmp0 (context_id, "wayland") == 0) { #ifdef GDK_WINDOWING_WAYLAND return GDK_IS_WAYLAND_DISPLAY (display) && gdk_wayland_display_query_registry (display, "zwp_text_input_manager_v3"); #else return FALSE; #endif } if (g_strcmp0 (context_id, "broadway") == 0) #ifdef GDK_WINDOWING_BROADWAY return GDK_IS_BROADWAY_DISPLAY (display); #else return FALSE; #endif if (g_strcmp0 (context_id, "ime") == 0) #ifdef GDK_WINDOWING_WIN32 return GDK_IS_WIN32_DISPLAY (display); #else return FALSE; #endif if (g_strcmp0 (context_id, "quartz") == 0) #ifdef GDK_WINDOWING_MACOS return GDK_IS_MACOS_DISPLAY (display); #else return FALSE; #endif return TRUE; } static const char * lookup_immodule (GdkDisplay *display, char **immodules_list) { guint i; for (i = 0; immodules_list[i]; i++) { if (!match_backend (display, immodules_list[i])) continue; if (g_strcmp0 (immodules_list[i], SIMPLE_ID) == 0) return SIMPLE_ID; else if (g_strcmp0 (immodules_list[i], NONE_ID) == 0) return NONE_ID; else { GIOExtensionPoint *ep; GIOExtension *ext; ep = g_io_extension_point_lookup (GTK_IM_MODULE_EXTENSION_POINT_NAME); ext = g_io_extension_point_get_extension_by_name (ep, immodules_list[i]); if (ext) return g_io_extension_get_name (ext); } } return NULL; } /** * _gtk_im_module_get_default_context_id: * @display: The display to look up the module for * * Return the context_id of the best IM context type * for the given window. * * Returns: the context ID (will never be %NULL) */ const char * _gtk_im_module_get_default_context_id (GdkDisplay *display) { const char *context_id = NULL; const char *envvar; GtkSettings *settings; GIOExtensionPoint *ep; GList *l; char *tmp; envvar = g_getenv ("GTK_IM_MODULE"); if (envvar) { char **immodules; immodules = g_strsplit (envvar, ":", 0); context_id = lookup_immodule (display, immodules); g_strfreev (immodules); if (context_id) return context_id; } /* Check if the certain immodule is set in XSETTINGS. */ settings = gtk_settings_get_for_display (display); g_object_get (G_OBJECT (settings), "gtk-im-module", &tmp, NULL); if (tmp) { char **immodules; immodules = g_strsplit (tmp, ":", 0); context_id = lookup_immodule (display, immodules); g_strfreev (immodules); g_free (tmp); if (context_id) return context_id; } ep = g_io_extension_point_lookup (GTK_IM_MODULE_EXTENSION_POINT_NAME); for (l = g_io_extension_point_get_extensions (ep); l; l = l->next) { GIOExtension *ext = l->data; context_id = g_io_extension_get_name (ext); if (match_backend (display, context_id)) return context_id; } g_error ("GTK was run without any IM module being present. This must not happen."); return SIMPLE_ID; } void gtk_im_module_ensure_extension_point (void) { GIOExtensionPoint *ep; static gboolean registered = FALSE; if (registered) return; GTK_NOTE (MODULES, g_print ("Registering extension point %s\n", GTK_IM_MODULE_EXTENSION_POINT_NAME)); ep = g_io_extension_point_register (GTK_IM_MODULE_EXTENSION_POINT_NAME); g_io_extension_point_set_required_type (ep, GTK_TYPE_IM_CONTEXT); registered = TRUE; } void gtk_im_modules_init (void) { GIOModuleScope *scope; char **paths; int i; gtk_im_module_ensure_extension_point (); g_type_ensure (gtk_im_context_simple_get_type ()); #ifdef GDK_WINDOWING_WAYLAND g_type_ensure (gtk_im_context_wayland_get_type ()); #endif #ifdef GDK_WINDOWING_BROADWAY g_type_ensure (gtk_im_context_broadway_get_type ()); #endif #ifdef GDK_WINDOWING_WIN32 g_type_ensure (gtk_im_context_ime_get_type ()); #endif #ifdef GDK_WINDOWING_MACOS g_type_ensure (gtk_im_context_quartz_get_type ()); #endif scope = g_io_module_scope_new (G_IO_MODULE_SCOPE_BLOCK_DUPLICATES); paths = _gtk_get_module_path ("immodules"); for (i = 0; paths[i]; i++) { GTK_NOTE (MODULES, g_print ("Scanning io modules in %s\n", paths[i])); g_io_modules_scan_all_in_directory_with_scope (paths[i], scope); } g_strfreev (paths); g_io_module_scope_free (scope); if (GTK_DEBUG_CHECK (MODULES)) { GIOExtensionPoint *ep; GList *list, *l; ep = g_io_extension_point_lookup (GTK_IM_MODULE_EXTENSION_POINT_NAME); list = g_io_extension_point_get_extensions (ep); for (l = list; l; l = l->next) { GIOExtension *ext = l->data; g_print ("extension: %s: type %s\n", g_io_extension_get_name (ext), g_type_name (g_io_extension_get_type (ext))); } } }