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comparison src/dialog-x.c @ 428:3ecd8885ac67 r21-2-22

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Import from CVS: tag r21-2-22
author cvs
date Mon, 13 Aug 2007 11:28:15 +0200
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children 080151679be2
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427:0a0253eac470 428:3ecd8885ac67
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
5 This file is part of XEmacs.
6
7 XEmacs is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by the
9 Free Software Foundation; either version 2, or (at your option) any
10 later version.
11
12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with XEmacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
21
22 /* Synched up with: Not in FSF. */
23
24 #include <config.h>
25 #include "lisp.h"
26
27 #include "console-x.h"
28 #include "EmacsFrame.h"
29 #include "gui-x.h"
30
31 #include "buffer.h"
32 #include "commands.h" /* zmacs_regions */
33 #include "events.h"
34 #include "frame.h"
35 #include "gui.h"
36 #include "opaque.h"
37 #include "window.h"
38
39
40 static void
41 maybe_run_dbox_text_callback (LWLIB_ID id)
42 {
43 /* !!#### This function has not been Mule-ized */
44 widget_value *wv;
45 int got_some;
46 wv = xmalloc_widget_value ();
47 wv->name = (char *) "value";
48 got_some = lw_get_some_values (id, wv);
49 if (got_some)
50 {
51 Lisp_Object text_field_callback;
52 char *text_field_value = wv->value;
53 VOID_TO_LISP (text_field_callback, wv->call_data);
54 if (text_field_value)
55 {
56 void *tmp = LISP_TO_VOID (list2 (text_field_callback,
57 build_string (text_field_value)));
58 popup_selection_callback (0, id, (XtPointer) tmp);
59 xfree (text_field_value);
60 }
61 }
62 free_widget_value (wv);
63 }
64
65 static void
66 dbox_selection_callback (Widget widget, LWLIB_ID id, XtPointer client_data)
67 {
68 /* This is called with client_data == -1 when WM_DELETE_WINDOW is sent
69 instead of a button being selected. */
70 struct device *d = get_device_from_display (XtDisplay (widget));
71 struct frame *f = 0;
72 Widget cur_widget = widget;
73
74 /* The parent which is actually connected to our EmacsFrame may be a
75 ways up the tree. */
76 while (!f && cur_widget)
77 {
78 f = x_any_window_to_frame (d, XtWindow (cur_widget));
79 cur_widget = XtParent (cur_widget);
80 }
81
82 if (popup_handled_p (id))
83 return;
84 assert (popup_up_p != 0);
85 ungcpro_popup_callbacks (id);
86 popup_up_p--;
87 maybe_run_dbox_text_callback (id);
88 popup_selection_callback (widget, id, client_data);
89 lw_destroy_all_widgets (id);
90
91 /* The Motif dialog box sets the keyboard focus to itself. When it
92 goes away we have to take care of getting the focus back
93 ourselves. */
94 #ifdef EXTERNAL_WIDGET
95 /* #### Not sure if this special case is necessary. */
96 if (!FRAME_X_EXTERNAL_WINDOW_P (f) && f)
97 #else
98 if (f)
99 #endif
100 lw_set_keyboard_focus (FRAME_X_SHELL_WIDGET (f), FRAME_X_TEXT_WIDGET (f));
101 }
102
103 static CONST char * CONST button_names [] = {
104 "button1", "button2", "button3", "button4", "button5",
105 "button6", "button7", "button8", "button9", "button10" };
106
107 /* can't have static frame locals because of some broken compilers */
108 static char tmp_dbox_name [255];
109
110 static widget_value *
111 dbox_descriptor_to_widget_value (Lisp_Object desc)
112 {
113 /* !!#### This function has not been Mule-ized */
114 /* This function can GC */
115 char *name;
116 int lbuttons = 0, rbuttons = 0;
117 int partition_seen = 0;
118 int text_field_p = 0;
119 int allow_text_p = 1;
120 widget_value *prev = 0, *kids = 0;
121 int n = 0;
122 int count = specpdl_depth ();
123 Lisp_Object wv_closure, gui_item;
124
125 CHECK_CONS (desc);
126 CHECK_STRING (XCAR (desc));
127 name = (char *) XSTRING_DATA (LISP_GETTEXT (XCAR (desc)));
128 desc = XCDR (desc);
129 if (!CONSP (desc))
130 error ("dialog boxes must have some buttons");
131
132 /* Inhibit GC during this conversion. The reasons for this are
133 the same as in menu_item_descriptor_to_widget_value(); see
134 the large comment above that function. */
135
136 record_unwind_protect (restore_gc_inhibit,
137 make_int (gc_currently_forbidden));
138 gc_currently_forbidden = 1;
139
140 kids = prev = xmalloc_widget_value ();
141
142 /* Also make sure that we free the partially-created widget_value
143 tree on Lisp error. */
144
145 wv_closure = make_opaque_ptr (kids);
146 record_unwind_protect (widget_value_unwind, wv_closure);
147 prev->name = (char *) "message";
148 prev->value = xstrdup (name);
149 prev->enabled = 1;
150
151 for (; !NILP (desc); desc = Fcdr (desc))
152 {
153 Lisp_Object button = XCAR (desc);
154 widget_value *wv;
155
156 if (NILP (button))
157 {
158 if (partition_seen)
159 error ("more than one partition (nil) seen in dbox spec");
160 partition_seen = 1;
161 continue;
162 }
163 CHECK_VECTOR (button);
164 wv = xmalloc_widget_value ();
165
166 gui_item = gui_parse_item_keywords (button);
167 if (!button_item_to_widget_value (gui_item, wv, allow_text_p, 1))
168 {
169 free_widget_value (wv);
170 continue;
171 }
172
173 if (wv->type == TEXT_TYPE)
174 {
175 text_field_p = 1;
176 allow_text_p = 0; /* only allow one */
177 }
178 else /* it's a button */
179 {
180 allow_text_p = 0; /* only allow text field at the front */
181 wv->value = xstrdup (wv->name); /* what a mess... */
182 wv->name = (char *) button_names [n];
183
184 if (partition_seen)
185 rbuttons++;
186 else
187 lbuttons++;
188 n++;
189
190 if (lbuttons > 9 || rbuttons > 9)
191 error ("too many buttons (9)"); /* #### this leaks */
192 }
193
194 prev->next = wv;
195 prev = wv;
196 }
197
198 if (n == 0)
199 error ("dialog boxes must have some buttons");
200 {
201 char type = (text_field_p ? 'P' : 'Q');
202 widget_value *dbox;
203 sprintf (tmp_dbox_name, "%c%dBR%d", type, lbuttons + rbuttons, rbuttons);
204 dbox = xmalloc_widget_value ();
205 dbox->name = tmp_dbox_name;
206 dbox->contents = kids;
207
208 /* No more need to free the half-filled-in structures. */
209 set_opaque_ptr (wv_closure, 0);
210 unbind_to (count, Qnil);
211 return dbox;
212 }
213 }
214
215 static void
216 x_popup_dialog_box (struct frame* f, Lisp_Object dbox_desc)
217 {
218 int dbox_id;
219 widget_value *data;
220 Widget parent, dbox;
221
222 data = dbox_descriptor_to_widget_value (dbox_desc);
223
224 parent = FRAME_X_SHELL_WIDGET (f);
225
226 dbox_id = new_lwlib_id ();
227 dbox = lw_create_widget (data->name, "dialog", dbox_id, data, parent, 1, 0,
228 dbox_selection_callback, 0);
229 lw_modify_all_widgets (dbox_id, data, True);
230 lw_modify_all_widgets (dbox_id, data->contents, True);
231 free_popup_widget_value_tree (data);
232
233 gcpro_popup_callbacks (dbox_id);
234
235 /* Setting zmacs-region-stays is necessary here because executing a
236 command from a dialog is really a two-command process: the first
237 command (bound to the button-click) simply pops up the dialog,
238 and returns. This causes a sequence of magic-events (destined
239 for the dialog widget) to begin. Eventually, a dialog item is
240 selected, and a misc-user-event blip is pushed onto the end of
241 the input stream, which is then executed by the event loop.
242
243 So there are two command-events, with a bunch of magic-events
244 between them. We don't want the *first* command event to alter
245 the state of the region, so that the region can be available as
246 an argument for the second command. */
247 if (zmacs_regions)
248 zmacs_region_stays = 1;
249
250 popup_up_p++;
251 lw_pop_up_all_widgets (dbox_id);
252 }
253
254 void
255 syms_of_dialog_x (void)
256 {
257 }
258
259 void
260 console_type_create_dialog_x (void)
261 {
262 CONSOLE_HAS_METHOD (x, popup_dialog_box);
263 }
264
265 void
266 vars_of_dialog_x (void)
267 {
268 #if defined (LWLIB_DIALOGS_LUCID)
269 Fprovide (intern ("lucid-dialogs"));
270 #elif defined (LWLIB_DIALOGS_MOTIF)
271 Fprovide (intern ("motif-dialogs"));
272 #elif defined (LWLIB_DIALOGS_ATHENA)
273 Fprovide (intern ("athena-dialogs"));
274 #endif
275 }