1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 2000 Red Hat, Inc.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
25 #include "gtkimmulticontext.h"
26 #include "gtkimmodule.h"
28 #include "gtkradiomenuitem.h"
30 #include "gtkprivate.h" /* To get redefinition of GTK_LOCALE_DIR on Win32 */
33 struct _GtkIMMulticontextPrivate
35 GdkWindow *client_window;
36 GdkRectangle cursor_location;
38 guint use_preedit : 1;
39 guint have_cursor_location : 1;
43 static void gtk_im_multicontext_finalize (GObject *object);
45 static void gtk_im_multicontext_set_slave (GtkIMMulticontext *multicontext,
49 static void gtk_im_multicontext_set_client_window (GtkIMContext *context,
51 static void gtk_im_multicontext_get_preedit_string (GtkIMContext *context,
53 PangoAttrList **attrs,
55 static gboolean gtk_im_multicontext_filter_keypress (GtkIMContext *context,
57 static void gtk_im_multicontext_focus_in (GtkIMContext *context);
58 static void gtk_im_multicontext_focus_out (GtkIMContext *context);
59 static void gtk_im_multicontext_reset (GtkIMContext *context);
60 static void gtk_im_multicontext_set_cursor_location (GtkIMContext *context,
62 static void gtk_im_multicontext_set_use_preedit (GtkIMContext *context,
63 gboolean use_preedit);
64 static gboolean gtk_im_multicontext_get_surrounding (GtkIMContext *context,
67 static void gtk_im_multicontext_set_surrounding (GtkIMContext *context,
72 static void gtk_im_multicontext_preedit_start_cb (GtkIMContext *slave,
73 GtkIMMulticontext *multicontext);
74 static void gtk_im_multicontext_preedit_end_cb (GtkIMContext *slave,
75 GtkIMMulticontext *multicontext);
76 static void gtk_im_multicontext_preedit_changed_cb (GtkIMContext *slave,
77 GtkIMMulticontext *multicontext);
78 static void gtk_im_multicontext_commit_cb (GtkIMContext *slave,
80 GtkIMMulticontext *multicontext);
81 static gboolean gtk_im_multicontext_retrieve_surrounding_cb (GtkIMContext *slave,
82 GtkIMMulticontext *multicontext);
83 static gboolean gtk_im_multicontext_delete_surrounding_cb (GtkIMContext *slave,
86 GtkIMMulticontext *multicontext);
88 static const gchar *user_context_id = NULL;
89 static const gchar *global_context_id = NULL;
91 G_DEFINE_TYPE (GtkIMMulticontext, gtk_im_multicontext, GTK_TYPE_IM_CONTEXT)
94 gtk_im_multicontext_class_init (GtkIMMulticontextClass *class)
96 GObjectClass *gobject_class = G_OBJECT_CLASS (class);
97 GtkIMContextClass *im_context_class = GTK_IM_CONTEXT_CLASS (class);
99 im_context_class->set_client_window = gtk_im_multicontext_set_client_window;
100 im_context_class->get_preedit_string = gtk_im_multicontext_get_preedit_string;
101 im_context_class->filter_keypress = gtk_im_multicontext_filter_keypress;
102 im_context_class->focus_in = gtk_im_multicontext_focus_in;
103 im_context_class->focus_out = gtk_im_multicontext_focus_out;
104 im_context_class->reset = gtk_im_multicontext_reset;
105 im_context_class->set_cursor_location = gtk_im_multicontext_set_cursor_location;
106 im_context_class->set_use_preedit = gtk_im_multicontext_set_use_preedit;
107 im_context_class->set_surrounding = gtk_im_multicontext_set_surrounding;
108 im_context_class->get_surrounding = gtk_im_multicontext_get_surrounding;
110 gobject_class->finalize = gtk_im_multicontext_finalize;
112 g_type_class_add_private (gobject_class, sizeof (GtkIMMulticontextPrivate));
116 gtk_im_multicontext_init (GtkIMMulticontext *multicontext)
118 multicontext->slave = NULL;
120 multicontext->priv = G_TYPE_INSTANCE_GET_PRIVATE (multicontext, GTK_TYPE_IM_MULTICONTEXT, GtkIMMulticontextPrivate);
121 multicontext->priv->use_preedit = TRUE;
122 multicontext->priv->have_cursor_location = FALSE;
123 multicontext->priv->focus_in = FALSE;
127 * gtk_im_multicontext_new:
129 * Creates a new #GtkIMMulticontext.
131 * Returns: a new #GtkIMMulticontext.
134 gtk_im_multicontext_new (void)
136 return g_object_new (GTK_TYPE_IM_MULTICONTEXT, NULL);
140 gtk_im_multicontext_finalize (GObject *object)
142 GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (object);
144 gtk_im_multicontext_set_slave (multicontext, NULL, TRUE);
145 g_free (multicontext->context_id);
147 G_OBJECT_CLASS (gtk_im_multicontext_parent_class)->finalize (object);
151 gtk_im_multicontext_set_slave (GtkIMMulticontext *multicontext,
155 GtkIMMulticontextPrivate *priv = multicontext->priv;
156 gboolean need_preedit_changed = FALSE;
158 if (multicontext->slave)
161 gtk_im_context_reset (multicontext->slave);
163 g_signal_handlers_disconnect_by_func (multicontext->slave,
164 gtk_im_multicontext_preedit_start_cb,
166 g_signal_handlers_disconnect_by_func (multicontext->slave,
167 gtk_im_multicontext_preedit_end_cb,
169 g_signal_handlers_disconnect_by_func (multicontext->slave,
170 gtk_im_multicontext_preedit_changed_cb,
172 g_signal_handlers_disconnect_by_func (multicontext->slave,
173 gtk_im_multicontext_commit_cb,
176 g_object_unref (multicontext->slave);
177 multicontext->slave = NULL;
180 need_preedit_changed = TRUE;
183 multicontext->slave = slave;
185 if (multicontext->slave)
187 g_object_ref (multicontext->slave);
189 g_signal_connect (multicontext->slave, "preedit-start",
190 G_CALLBACK (gtk_im_multicontext_preedit_start_cb),
192 g_signal_connect (multicontext->slave, "preedit-end",
193 G_CALLBACK (gtk_im_multicontext_preedit_end_cb),
195 g_signal_connect (multicontext->slave, "preedit-changed",
196 G_CALLBACK (gtk_im_multicontext_preedit_changed_cb),
198 g_signal_connect (multicontext->slave, "commit",
199 G_CALLBACK (gtk_im_multicontext_commit_cb),
201 g_signal_connect (multicontext->slave, "retrieve-surrounding",
202 G_CALLBACK (gtk_im_multicontext_retrieve_surrounding_cb),
204 g_signal_connect (multicontext->slave, "delete-surrounding",
205 G_CALLBACK (gtk_im_multicontext_delete_surrounding_cb),
208 if (!priv->use_preedit) /* Default is TRUE */
209 gtk_im_context_set_use_preedit (slave, FALSE);
210 if (priv->client_window)
211 gtk_im_context_set_client_window (slave, priv->client_window);
212 if (priv->have_cursor_location)
213 gtk_im_context_set_cursor_location (slave, &priv->cursor_location);
215 gtk_im_context_focus_in (slave);
218 if (need_preedit_changed)
219 g_signal_emit_by_name (multicontext, "preedit-changed");
222 static GtkIMContext *
223 gtk_im_multicontext_get_slave (GtkIMMulticontext *multicontext)
225 if (!multicontext->slave)
229 if (!global_context_id)
232 global_context_id = user_context_id;
234 global_context_id = _gtk_im_module_get_default_context_id (multicontext->priv->client_window);
236 slave = _gtk_im_module_create (global_context_id);
237 gtk_im_multicontext_set_slave (multicontext, slave, FALSE);
238 g_object_unref (slave);
240 g_free (multicontext->context_id);
241 multicontext->context_id = g_strdup (global_context_id);
244 return multicontext->slave;
248 im_module_setting_changed (GtkSettings *settings,
251 global_context_id = NULL;
256 gtk_im_multicontext_set_client_window (GtkIMContext *context,
259 GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
262 GtkSettings *settings;
265 multicontext->priv->client_window = window;
267 slave = gtk_im_multicontext_get_slave (multicontext);
270 gtk_im_context_set_client_window (slave, window);
275 screen = gdk_drawable_get_screen (GDK_DRAWABLE (window));
277 settings = gtk_settings_get_for_screen (screen);
279 settings = gtk_settings_get_default ();
281 connected = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (settings),
282 "gtk-im-module-connected"));
285 g_signal_connect (settings, "notify::gtk-im-module",
286 G_CALLBACK (im_module_setting_changed), NULL);
287 g_object_set_data (G_OBJECT (settings), "gtk-im-module-connected",
288 GINT_TO_POINTER (TRUE));
290 global_context_id = NULL;
295 gtk_im_multicontext_get_preedit_string (GtkIMContext *context,
297 PangoAttrList **attrs,
300 GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
301 GtkIMContext *slave = gtk_im_multicontext_get_slave (multicontext);
304 gtk_im_context_get_preedit_string (slave, str, attrs, cursor_pos);
308 *str = g_strdup ("");
310 *attrs = pango_attr_list_new ();
315 gtk_im_multicontext_filter_keypress (GtkIMContext *context,
318 GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
319 GtkIMContext *slave = gtk_im_multicontext_get_slave (multicontext);
322 return gtk_im_context_filter_keypress (slave, event);
328 gtk_im_multicontext_focus_in (GtkIMContext *context)
330 GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
333 /* If the global context type is different from the context we were
334 * using before, get rid of the old slave and create a new one
335 * for the new global context type.
337 if (multicontext->context_id == NULL ||
338 global_context_id == NULL ||
339 strcmp (global_context_id, multicontext->context_id) != 0)
340 gtk_im_multicontext_set_slave (multicontext, NULL, FALSE);
342 slave = gtk_im_multicontext_get_slave (multicontext);
344 multicontext->priv->focus_in = TRUE;
347 gtk_im_context_focus_in (slave);
351 gtk_im_multicontext_focus_out (GtkIMContext *context)
353 GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
354 GtkIMContext *slave = gtk_im_multicontext_get_slave (multicontext);
356 multicontext->priv->focus_in = FALSE;
359 gtk_im_context_focus_out (slave);
363 gtk_im_multicontext_reset (GtkIMContext *context)
365 GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
366 GtkIMContext *slave = gtk_im_multicontext_get_slave (multicontext);
369 gtk_im_context_reset (slave);
373 gtk_im_multicontext_set_cursor_location (GtkIMContext *context,
376 GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
377 GtkIMContext *slave = gtk_im_multicontext_get_slave (multicontext);
379 multicontext->priv->have_cursor_location = TRUE;
380 multicontext->priv->cursor_location = *area;
383 gtk_im_context_set_cursor_location (slave, area);
387 gtk_im_multicontext_set_use_preedit (GtkIMContext *context,
388 gboolean use_preedit)
390 GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
391 GtkIMContext *slave = gtk_im_multicontext_get_slave (multicontext);
393 use_preedit = use_preedit != FALSE;
395 multicontext->priv->use_preedit = use_preedit;
398 gtk_im_context_set_use_preedit (slave, use_preedit);
402 gtk_im_multicontext_get_surrounding (GtkIMContext *context,
406 GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
407 GtkIMContext *slave = gtk_im_multicontext_get_slave (multicontext);
410 return gtk_im_context_get_surrounding (slave, text, cursor_index);
423 gtk_im_multicontext_set_surrounding (GtkIMContext *context,
428 GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
429 GtkIMContext *slave = gtk_im_multicontext_get_slave (multicontext);
432 gtk_im_context_set_surrounding (slave, text, len, cursor_index);
436 gtk_im_multicontext_preedit_start_cb (GtkIMContext *slave,
437 GtkIMMulticontext *multicontext)
439 g_signal_emit_by_name (multicontext, "preedit-start");
443 gtk_im_multicontext_preedit_end_cb (GtkIMContext *slave,
444 GtkIMMulticontext *multicontext)
446 g_signal_emit_by_name (multicontext, "preedit-end");
450 gtk_im_multicontext_preedit_changed_cb (GtkIMContext *slave,
451 GtkIMMulticontext *multicontext)
453 g_signal_emit_by_name (multicontext, "preedit-changed");
457 gtk_im_multicontext_commit_cb (GtkIMContext *slave,
459 GtkIMMulticontext *multicontext)
461 g_signal_emit_by_name (multicontext, "commit", str);;
465 gtk_im_multicontext_retrieve_surrounding_cb (GtkIMContext *slave,
466 GtkIMMulticontext *multicontext)
470 g_signal_emit_by_name (multicontext, "retrieve-surrounding", &result);
476 gtk_im_multicontext_delete_surrounding_cb (GtkIMContext *slave,
479 GtkIMMulticontext *multicontext)
483 g_signal_emit_by_name (multicontext, "delete-surrounding",
484 offset, n_chars, &result);
490 activate_cb (GtkWidget *menuitem,
491 GtkIMMulticontext *context)
493 if (GTK_CHECK_MENU_ITEM (menuitem)->active)
495 const gchar *id = g_object_get_data (G_OBJECT (menuitem), "gtk-context-id");
497 gtk_im_context_reset (GTK_IM_CONTEXT (context));
499 user_context_id = id;
500 global_context_id = NULL;
501 gtk_im_multicontext_set_slave (context, NULL, FALSE);
506 pathnamecmp (const char *a,
510 return strcmp (a, b);
512 /* Ignore case insensitivity, probably not that relevant here. Just
513 * make sure slash and backslash compare equal.
516 if ((G_IS_DIR_SEPARATOR (*a) && G_IS_DIR_SEPARATOR (*b)) ||
526 * gtk_im_multicontext_append_menuitems:
527 * @context: a #GtkIMMultiContext
528 * @menushell: a #GtkMenuShell
530 * Add menuitems for various available input methods to a menu;
531 * the menuitems, when selected, will switch the input method
532 * for the context and the global default input method.
535 gtk_im_multicontext_append_menuitems (GtkIMMulticontext *context,
536 GtkMenuShell *menushell)
538 const GtkIMContextInfo **contexts;
540 GSList *group = NULL;
543 menuitem = gtk_radio_menu_item_new_with_label (group, Q_("input method menu|System"));
544 if (!user_context_id)
545 gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (menuitem), TRUE);
546 group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (menuitem));
547 g_object_set_data (G_OBJECT (menuitem), I_("gtk-context-id"), NULL);
548 g_signal_connect (menuitem, "activate", G_CALLBACK (activate_cb), context);
550 gtk_widget_show (menuitem);
551 gtk_menu_shell_append (menushell, menuitem);
553 _gtk_im_module_list (&contexts, &n_contexts);
555 for (i = 0; i < n_contexts; i++)
557 const gchar *translated_name;
559 if (contexts[i]->domain && contexts[i]->domain[0])
561 if (strcmp (contexts[i]->domain, GETTEXT_PACKAGE) == 0)
563 /* Same translation domain as GTK+ */
564 if (!(contexts[i]->domain_dirname && contexts[i]->domain_dirname[0]) ||
565 pathnamecmp (contexts[i]->domain_dirname, GTK_LOCALEDIR) == 0)
567 /* Empty or NULL, domain directory, or same as
568 * GTK+. Input method may have a name in the GTK+
571 translated_name = _(contexts[i]->context_name);
575 /* Separate domain directory but the same
576 * translation domain as GTK+. We can't call
577 * bindtextdomain() as that would make GTK+ forget
580 g_warning ("Input method %s should not use GTK's translation domain %s",
581 contexts[i]->context_id, GETTEXT_PACKAGE);
582 /* Try translating the name in GTK+'s domain */
583 translated_name = _(contexts[i]->context_name);
586 else if (contexts[i]->domain_dirname && contexts[i]->domain_dirname[0])
587 /* Input method has own translation domain and message catalog */
589 bindtextdomain (contexts[i]->domain,
590 contexts[i]->domain_dirname);
591 #ifdef HAVE_BIND_TEXTDOMAIN_CODESET
592 bind_textdomain_codeset (contexts[i]->domain, "UTF-8");
594 translated_name = g_dgettext (contexts[i]->domain, contexts[i]->context_name);
598 /* Different translation domain, but no domain directory */
599 translated_name = contexts[i]->context_name;
603 /* Empty or NULL domain. We assume that input method does not
604 * want a translated name in this case.
606 translated_name = contexts[i]->context_name;
608 translated_name = contexts[i]->context_name;
610 menuitem = gtk_radio_menu_item_new_with_label (group,
613 if ((user_context_id &&
614 strcmp (contexts[i]->context_id, user_context_id) == 0))
615 gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (menuitem), TRUE);
617 group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (menuitem));
619 g_object_set_data (G_OBJECT (menuitem), I_("gtk-context-id"),
620 (char *)contexts[i]->context_id);
621 g_signal_connect (menuitem, "activate",
622 G_CALLBACK (activate_cb), context);
624 gtk_widget_show (menuitem);
625 gtk_menu_shell_append (menushell, menuitem);
631 #define __GTK_IM_MULTICONTEXT_C__
632 #include "gtkaliasdef.c"