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;
39 guint use_preedit : 1;
40 guint have_cursor_location : 1;
44 static void gtk_im_multicontext_finalize (GObject *object);
46 static void gtk_im_multicontext_set_slave (GtkIMMulticontext *multicontext,
50 static void gtk_im_multicontext_set_client_window (GtkIMContext *context,
52 static void gtk_im_multicontext_get_preedit_string (GtkIMContext *context,
54 PangoAttrList **attrs,
56 static gboolean gtk_im_multicontext_filter_keypress (GtkIMContext *context,
58 static void gtk_im_multicontext_focus_in (GtkIMContext *context);
59 static void gtk_im_multicontext_focus_out (GtkIMContext *context);
60 static void gtk_im_multicontext_reset (GtkIMContext *context);
61 static void gtk_im_multicontext_set_cursor_location (GtkIMContext *context,
63 static void gtk_im_multicontext_set_use_preedit (GtkIMContext *context,
64 gboolean use_preedit);
65 static gboolean gtk_im_multicontext_get_surrounding (GtkIMContext *context,
68 static void gtk_im_multicontext_set_surrounding (GtkIMContext *context,
73 static void gtk_im_multicontext_preedit_start_cb (GtkIMContext *slave,
74 GtkIMMulticontext *multicontext);
75 static void gtk_im_multicontext_preedit_end_cb (GtkIMContext *slave,
76 GtkIMMulticontext *multicontext);
77 static void gtk_im_multicontext_preedit_changed_cb (GtkIMContext *slave,
78 GtkIMMulticontext *multicontext);
79 static void gtk_im_multicontext_commit_cb (GtkIMContext *slave,
81 GtkIMMulticontext *multicontext);
82 static gboolean gtk_im_multicontext_retrieve_surrounding_cb (GtkIMContext *slave,
83 GtkIMMulticontext *multicontext);
84 static gboolean gtk_im_multicontext_delete_surrounding_cb (GtkIMContext *slave,
87 GtkIMMulticontext *multicontext);
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);
146 g_free (multicontext->priv->context_id);
148 G_OBJECT_CLASS (gtk_im_multicontext_parent_class)->finalize (object);
152 gtk_im_multicontext_set_slave (GtkIMMulticontext *multicontext,
156 GtkIMMulticontextPrivate *priv = multicontext->priv;
157 gboolean need_preedit_changed = FALSE;
159 if (multicontext->slave)
162 gtk_im_context_reset (multicontext->slave);
164 g_signal_handlers_disconnect_by_func (multicontext->slave,
165 gtk_im_multicontext_preedit_start_cb,
167 g_signal_handlers_disconnect_by_func (multicontext->slave,
168 gtk_im_multicontext_preedit_end_cb,
170 g_signal_handlers_disconnect_by_func (multicontext->slave,
171 gtk_im_multicontext_preedit_changed_cb,
173 g_signal_handlers_disconnect_by_func (multicontext->slave,
174 gtk_im_multicontext_commit_cb,
177 g_object_unref (multicontext->slave);
178 multicontext->slave = NULL;
181 need_preedit_changed = TRUE;
184 multicontext->slave = slave;
186 if (multicontext->slave)
188 g_object_ref (multicontext->slave);
190 g_signal_connect (multicontext->slave, "preedit-start",
191 G_CALLBACK (gtk_im_multicontext_preedit_start_cb),
193 g_signal_connect (multicontext->slave, "preedit-end",
194 G_CALLBACK (gtk_im_multicontext_preedit_end_cb),
196 g_signal_connect (multicontext->slave, "preedit-changed",
197 G_CALLBACK (gtk_im_multicontext_preedit_changed_cb),
199 g_signal_connect (multicontext->slave, "commit",
200 G_CALLBACK (gtk_im_multicontext_commit_cb),
202 g_signal_connect (multicontext->slave, "retrieve-surrounding",
203 G_CALLBACK (gtk_im_multicontext_retrieve_surrounding_cb),
205 g_signal_connect (multicontext->slave, "delete-surrounding",
206 G_CALLBACK (gtk_im_multicontext_delete_surrounding_cb),
209 if (!priv->use_preedit) /* Default is TRUE */
210 gtk_im_context_set_use_preedit (slave, FALSE);
211 if (priv->client_window)
212 gtk_im_context_set_client_window (slave, priv->client_window);
213 if (priv->have_cursor_location)
214 gtk_im_context_set_cursor_location (slave, &priv->cursor_location);
216 gtk_im_context_focus_in (slave);
219 if (need_preedit_changed)
220 g_signal_emit_by_name (multicontext, "preedit-changed");
223 static GtkIMContext *
224 gtk_im_multicontext_get_slave (GtkIMMulticontext *multicontext)
226 if (!multicontext->slave)
230 g_free (multicontext->context_id);
232 if (multicontext->priv->context_id)
233 multicontext->context_id = g_strdup (multicontext->priv->context_id);
236 if (!global_context_id)
237 global_context_id = _gtk_im_module_get_default_context_id (multicontext->priv->client_window);
238 multicontext->context_id = g_strdup (global_context_id);
240 slave = _gtk_im_module_create (multicontext->context_id);
241 gtk_im_multicontext_set_slave (multicontext, slave, FALSE);
242 g_object_unref (slave);
245 return multicontext->slave;
249 im_module_setting_changed (GtkSettings *settings,
252 global_context_id = NULL;
257 gtk_im_multicontext_set_client_window (GtkIMContext *context,
260 GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
262 GtkSettings *settings;
265 multicontext->priv->client_window = window;
267 gtk_im_multicontext_set_slave (multicontext, NULL, FALSE);
272 screen = gdk_drawable_get_screen (GDK_DRAWABLE (window));
274 settings = gtk_settings_get_for_screen (screen);
276 settings = gtk_settings_get_default ();
278 connected = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (settings),
279 "gtk-im-module-connected"));
282 g_signal_connect (settings, "notify::gtk-im-module",
283 G_CALLBACK (im_module_setting_changed), NULL);
284 g_object_set_data (G_OBJECT (settings), "gtk-im-module-connected",
285 GINT_TO_POINTER (TRUE));
287 global_context_id = NULL;
292 gtk_im_multicontext_get_preedit_string (GtkIMContext *context,
294 PangoAttrList **attrs,
297 GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
298 GtkIMContext *slave = gtk_im_multicontext_get_slave (multicontext);
301 gtk_im_context_get_preedit_string (slave, str, attrs, cursor_pos);
305 *str = g_strdup ("");
307 *attrs = pango_attr_list_new ();
312 gtk_im_multicontext_filter_keypress (GtkIMContext *context,
315 GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
316 GtkIMContext *slave = gtk_im_multicontext_get_slave (multicontext);
319 return gtk_im_context_filter_keypress (slave, event);
325 gtk_im_multicontext_focus_in (GtkIMContext *context)
327 GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
330 /* If the global context type is different from the context we were
331 * using before, get rid of the old slave and create a new one
332 * for the new global context type.
334 if (multicontext->context_id == NULL ||
335 (multicontext->priv->context_id != NULL &&
336 strcmp (multicontext->priv->context_id, multicontext->context_id) != 0) ||
337 (multicontext->priv->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_multicontext_set_context_id (context, id);
502 pathnamecmp (const char *a,
506 return strcmp (a, b);
508 /* Ignore case insensitivity, probably not that relevant here. Just
509 * make sure slash and backslash compare equal.
512 if ((G_IS_DIR_SEPARATOR (*a) && G_IS_DIR_SEPARATOR (*b)) ||
522 * gtk_im_multicontext_append_menuitems:
523 * @context: a #GtkIMMulticontext
524 * @menushell: a #GtkMenuShell
526 * Add menuitems for various available input methods to a menu;
527 * the menuitems, when selected, will switch the input method
528 * for the context and the global default input method.
531 gtk_im_multicontext_append_menuitems (GtkIMMulticontext *context,
532 GtkMenuShell *menushell)
534 const GtkIMContextInfo **contexts;
536 GSList *group = NULL;
537 GtkWidget *menuitem, *system_menuitem;
538 const char *system_context_id;
540 system_context_id = _gtk_im_module_get_default_context_id (context->priv->client_window);
541 system_menuitem = menuitem = gtk_radio_menu_item_new_with_label (group, C_("input method menu", "System"));
542 if (!context->priv->context_id)
543 gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (menuitem), TRUE);
544 group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (menuitem));
545 g_object_set_data (G_OBJECT (menuitem), I_("gtk-context-id"), NULL);
546 g_signal_connect (menuitem, "activate", G_CALLBACK (activate_cb), context);
548 gtk_widget_show (menuitem);
549 gtk_menu_shell_append (menushell, menuitem);
551 menuitem = gtk_separator_menu_item_new ();
552 gtk_widget_show (menuitem);
553 gtk_menu_shell_append (menushell, menuitem);
555 _gtk_im_module_list (&contexts, &n_contexts);
557 for (i = 0; i < n_contexts; i++)
559 const gchar *translated_name;
561 if (contexts[i]->domain && contexts[i]->domain[0])
563 if (strcmp (contexts[i]->domain, GETTEXT_PACKAGE) == 0)
565 /* Same translation domain as GTK+ */
566 if (!(contexts[i]->domain_dirname && contexts[i]->domain_dirname[0]) ||
567 pathnamecmp (contexts[i]->domain_dirname, GTK_LOCALEDIR) == 0)
569 /* Empty or NULL, domain directory, or same as
570 * GTK+. Input method may have a name in the GTK+
573 translated_name = _(contexts[i]->context_name);
577 /* Separate domain directory but the same
578 * translation domain as GTK+. We can't call
579 * bindtextdomain() as that would make GTK+ forget
582 g_warning ("Input method %s should not use GTK's translation domain %s",
583 contexts[i]->context_id, GETTEXT_PACKAGE);
584 /* Try translating the name in GTK+'s domain */
585 translated_name = _(contexts[i]->context_name);
588 else if (contexts[i]->domain_dirname && contexts[i]->domain_dirname[0])
589 /* Input method has own translation domain and message catalog */
591 bindtextdomain (contexts[i]->domain,
592 contexts[i]->domain_dirname);
593 #ifdef HAVE_BIND_TEXTDOMAIN_CODESET
594 bind_textdomain_codeset (contexts[i]->domain, "UTF-8");
596 translated_name = g_dgettext (contexts[i]->domain, contexts[i]->context_name);
600 /* Different translation domain, but no domain directory */
601 translated_name = contexts[i]->context_name;
605 /* Empty or NULL domain. We assume that input method does not
606 * want a translated name in this case.
608 translated_name = contexts[i]->context_name;
610 translated_name = contexts[i]->context_name;
612 menuitem = gtk_radio_menu_item_new_with_label (group,
615 if ((context->priv->context_id &&
616 strcmp (contexts[i]->context_id, context->priv->context_id) == 0))
617 gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (menuitem), TRUE);
619 if (strcmp (contexts[i]->context_id, system_context_id) == 0)
624 label = gtk_bin_get_child (GTK_BIN (system_menuitem));
625 text = g_strdup_printf (C_("input method menu", "System (%s)"), translated_name);
626 gtk_label_set_text (GTK_LABEL (label), text);
630 group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (menuitem));
632 g_object_set_data (G_OBJECT (menuitem), I_("gtk-context-id"),
633 (char *)contexts[i]->context_id);
634 g_signal_connect (menuitem, "activate",
635 G_CALLBACK (activate_cb), context);
637 gtk_widget_show (menuitem);
638 gtk_menu_shell_append (menushell, menuitem);
645 * gtk_im_multicontext_get_context_id:
646 * @context: a #GtkIMMulticontext
648 * Gets the id of the currently active slave of the @context.
650 * Returns: the id of the currently active slave
655 gtk_im_multicontext_get_context_id (GtkIMMulticontext *context)
657 return context->context_id;
661 * gtk_im_multicontext_set_context_id:
662 * @context: a #GtkIMMulticontext
663 * @context_id: the id to use
665 * Sets the context id for @context.
667 * This causes the currently active slave of @context to be
668 * replaced by the slave corresponding to the new context id.
673 gtk_im_multicontext_set_context_id (GtkIMMulticontext *context,
674 const char *context_id)
676 gtk_im_context_reset (GTK_IM_CONTEXT (context));
677 g_free (context->priv->context_id);
678 context->priv->context_id = g_strdup (context_id);
679 gtk_im_multicontext_set_slave (context, NULL, FALSE);
683 #define __GTK_IM_MULTICONTEXT_C__
684 #include "gtkaliasdef.c"