1 /* Implements elisp-programmable dialog boxes -- X interface.
2 Copyright (C) 1993, 1994 Free Software Foundation, Inc.
3 Copyright (C) 1995 Tinker Systems and INS Engineering Corp.
4 Copyright (C) 2000 Ben Wing.
6 This file is part of XEmacs.
8 XEmacs is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by the
10 Free Software Foundation; either version 2, or (at your option) any
13 XEmacs is distributed in the hope that it will be useful, but WITHOUT
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with XEmacs; see the file COPYING. If not, write to
20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
23 /* Synched up with: Not in FSF. */
25 /* This file Mule-ized by Ben Wing, 7-8-00. */
30 #include "console-x.h"
31 #include "EmacsFrame.h"
35 #include "commands.h" /* zmacs_regions */
44 maybe_run_dbox_text_callback (LWLIB_ID id)
48 wv = xmalloc_widget_value ();
49 wv->name = xstrdup ("value");
50 got_some = lw_get_some_values (id, wv);
53 Lisp_Object text_field_callback;
54 Extbyte *text_field_value = wv->value;
55 VOID_TO_LISP (text_field_callback, wv->call_data);
56 text_field_callback = XCAR (XCDR (text_field_callback));
60 LISP_TO_VOID (cons3 (Qnil,
61 list2 (text_field_callback,
62 build_ext_string (text_field_value,
65 popup_selection_callback (0, id, (XtPointer) tmp);
68 /* This code tried to optimize, newing/freeing. This is generally
69 unsafe so we will always strdup and always use
70 free_widget_value_tree. */
71 free_widget_value_tree (wv);
75 dbox_selection_callback (Widget widget, LWLIB_ID id, XtPointer client_data)
77 /* This is called with client_data == -1 when WM_DELETE_WINDOW is sent
78 instead of a button being selected. */
79 struct device *d = get_device_from_display (XtDisplay (widget));
81 Widget cur_widget = widget;
83 /* The parent which is actually connected to our EmacsFrame may be a
85 while (!f && cur_widget)
87 f = x_any_window_to_frame (d, XtWindow (cur_widget));
88 cur_widget = XtParent (cur_widget);
91 if (popup_handled_p (id))
93 assert (popup_up_p != 0);
94 ungcpro_popup_callbacks (id);
96 maybe_run_dbox_text_callback (id);
97 popup_selection_callback (widget, id, client_data);
98 /* #### need to error-protect! will do so when i merge in
100 va_run_hook_with_args (Qdelete_dialog_box_hook, 1, make_int (id));
101 lw_destroy_all_widgets (id);
103 /* The Motif dialog box sets the keyboard focus to itself. When it
104 goes away we have to take care of getting the focus back
106 #ifdef EXTERNAL_WIDGET
107 /* #### Not sure if this special case is necessary. */
108 if (!FRAME_X_EXTERNAL_WINDOW_P (f) && f)
112 lw_set_keyboard_focus (FRAME_X_SHELL_WIDGET (f), FRAME_X_TEXT_WIDGET (f));
115 static const Extbyte * const button_names [] = {
116 "button1", "button2", "button3", "button4", "button5",
117 "button6", "button7", "button8", "button9", "button10" };
119 static widget_value *
120 dbox_descriptor_to_widget_value (Lisp_Object keys)
122 /* This function can GC */
123 int lbuttons = 0, rbuttons = 0;
124 int partition_seen = 0;
125 int text_field_p = 0;
126 int allow_text_p = 1;
127 widget_value *prev = 0, *kids = 0;
129 int count = specpdl_depth ();
130 Lisp_Object wv_closure, gui_item;
131 Lisp_Object question = Qnil, title = Qnil, buttons = Qnil;
134 EXTERNAL_PROPERTY_LIST_LOOP_3 (key, value, keys)
136 if (EQ (key, Q_question))
138 CHECK_STRING (value);
141 else if (EQ (key, Q_title))
143 CHECK_STRING (value);
146 else if (EQ (key, Q_buttons))
152 syntax_error ("Unrecognized question-dialog keyword", key);
157 syntax_error ("Dialog descriptor provides no question", keys);
159 /* Inhibit GC during this conversion. The reasons for this are
160 the same as in menu_item_descriptor_to_widget_value(); see
161 the large comment above that function. */
163 record_unwind_protect (restore_gc_inhibit,
164 make_int (gc_currently_forbidden));
165 gc_currently_forbidden = 1;
167 kids = prev = xmalloc_widget_value ();
169 /* Also make sure that we free the partially-created widget_value
170 tree on Lisp error. */
172 wv_closure = make_opaque_ptr (kids);
173 record_unwind_protect (widget_value_unwind, wv_closure);
174 prev->name = xstrdup ("message");
175 LISP_STRING_TO_EXTERNAL_MALLOC (question, prev->value, Qlwlib_encoding);
179 EXTERNAL_LIST_LOOP_2 (button, buttons)
186 syntax_error ("More than one partition (nil) seen in dbox spec",
191 CHECK_VECTOR (button);
192 wv = xmalloc_widget_value ();
194 gui_item = gui_parse_item_keywords (button);
195 if (!button_item_to_widget_value (Qdialog,
196 gui_item, wv, allow_text_p, 1, 0, 1))
198 free_widget_value_tree (wv);
202 if (wv->type == TEXT_TYPE)
205 allow_text_p = 0; /* only allow one */
207 else /* it's a button */
209 allow_text_p = 0; /* only allow text field at the front */
212 wv->value = wv->name; /* what a mess... */
213 wv->name = xstrdup (button_names [n]);
221 if (lbuttons > 9 || rbuttons > 9)
222 syntax_error ("Too many buttons (9)",
223 keys); /* #### this leaks */
232 syntax_error ("Dialog boxes must have some buttons", keys);
235 Extbyte type = (text_field_p ? 'P' : 'Q');
236 static Extbyte tmp_dbox_name [255];
239 sprintf (tmp_dbox_name, "%c%dBR%d", type, lbuttons + rbuttons, rbuttons);
240 dbox = xmalloc_widget_value ();
241 dbox->name = xstrdup (tmp_dbox_name);
242 dbox->contents = kids;
244 /* No more need to free the half-filled-in structures. */
245 set_opaque_ptr (wv_closure, 0);
246 unbind_to (count, Qnil);
252 x_make_dialog_box_internal (struct frame* f, Lisp_Object type,
259 if (!EQ (type, Qquestion))
260 signal_type_error (Qunimplemented, "Dialog box type", type);
262 data = dbox_descriptor_to_widget_value (keys);
264 parent = FRAME_X_SHELL_WIDGET (f);
266 dbox_id = new_lwlib_id ();
267 dbox = lw_create_widget (data->name, "dialog", dbox_id, data, parent, 1, 0,
268 dbox_selection_callback, 0);
269 lw_modify_all_widgets (dbox_id, data, True);
270 lw_modify_all_widgets (dbox_id, data->contents, True);
271 free_popup_widget_value_tree (data);
273 gcpro_popup_callbacks (dbox_id);
275 /* Setting zmacs-region-stays is necessary here because executing a
276 command from a dialog is really a two-command process: the first
277 command (bound to the button-click) simply pops up the dialog,
278 and returns. This causes a sequence of magic-events (destined
279 for the dialog widget) to begin. Eventually, a dialog item is
280 selected, and a misc-user-event blip is pushed onto the end of
281 the input stream, which is then executed by the event loop.
283 So there are two command-events, with a bunch of magic-events
284 between them. We don't want the *first* command event to alter
285 the state of the region, so that the region can be available as
286 an argument for the second command. */
288 zmacs_region_stays = 1;
291 lw_pop_up_all_widgets (dbox_id);
293 /* #### this could (theoretically) cause problems if we are up for
294 a REALLY REALLY long time -- too big to fit into lisp integer. */
295 return make_int (dbox_id);
299 syms_of_dialog_x (void)
304 console_type_create_dialog_x (void)
306 CONSOLE_HAS_METHOD (x, make_dialog_box_internal);
310 vars_of_dialog_x (void)
312 #if defined (LWLIB_DIALOGS_LUCID)
313 Fprovide (intern ("lucid-dialogs"));
314 #elif defined (LWLIB_DIALOGS_MOTIF)
315 Fprovide (intern ("motif-dialogs"));
316 #elif defined (LWLIB_DIALOGS_ATHENA)
317 Fprovide (intern ("athena-dialogs"));