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07bf635f RS |
1 | /* The lwlib interface to "xlwmenu" menus. |
2 | Copyright (C) 1992 Lucid, Inc. | |
92b47a4a | 3 | Copyright (C) 1994, 2000, 2001, 2002, 2003, 2004, |
f5d0ac07 | 4 | 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. |
07bf635f RS |
5 | |
6 | This file is part of the Lucid Widget Library. | |
7 | ||
177c0ea7 | 8 | The Lucid Widget Library is free software; you can redistribute it and/or |
07bf635f RS |
9 | modify it under the terms of the GNU General Public License as published by |
10 | the Free Software Foundation; either version 1, or (at your option) | |
11 | any later version. | |
12 | ||
13 | The Lucid Widget Library is distributed in the hope that it will be useful, | |
177c0ea7 | 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
07bf635f RS |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GNU Emacs; see the file COPYING. If not, write to | |
364c38d3 LK |
20 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
07bf635f | 22 | |
0f0912e6 PE |
23 | #ifdef HAVE_CONFIG_H |
24 | #include <config.h> | |
25 | #endif | |
26 | ||
d7306fe6 | 27 | #include <setjmp.h> |
e226063c | 28 | #include "lisp.h" |
2f96293d | 29 | |
07bf635f RS |
30 | #include "lwlib-Xlw.h" |
31 | #include <X11/StringDefs.h> | |
32 | #include <X11/IntrinsicP.h> | |
33 | #include <X11/ObjectP.h> | |
34 | #include <X11/CompositeP.h> | |
35 | #include <X11/Shell.h> | |
36 | #include "xlwmenu.h" | |
37 | ||
d3a785ff GM |
38 | #if 0 |
39 | ||
40 | #include <stdio.h> | |
41 | ||
42 | /* Print the complete X resource name of widget WIDGET to stderr. | |
43 | This is sometimes handy to have available. */ | |
44 | ||
45 | void | |
46 | x_print_complete_resource_name (widget) | |
47 | Widget widget; | |
48 | { | |
49 | int i; | |
50 | String names[100]; | |
51 | ||
52 | for (i = 0; i < 100 && widget != NULL; ++i) | |
53 | { | |
54 | names[i] = XtName (widget); | |
55 | widget = XtParent (widget); | |
56 | } | |
57 | ||
58 | for (--i; i >= 1; --i) | |
59 | fprintf (stderr, "%s.", names[i]); | |
60 | fprintf (stderr, "%s\n", names[0]); | |
61 | } | |
62 | ||
63 | #endif /* 0 */ | |
64 | ||
65 | ||
07bf635f | 66 | \f/* Menu callbacks */ |
fa616ec4 GM |
67 | |
68 | /* Callback XtNhighlightCallback for Lucid menus. W is the menu | |
69 | widget, CLIENT_DATA contains a pointer to the widget_instance | |
70 | for the menu, CALL_DATA contains a pointer to the widget_value | |
71 | structure for the highlighted menu item. The latter may be null | |
72 | if there isn't any highlighted menu item. */ | |
73 | ||
74 | static void | |
75 | highlight_hook (w, client_data, call_data) | |
76 | Widget w; | |
77 | XtPointer client_data; | |
78 | XtPointer call_data; | |
79 | { | |
80 | widget_instance *instance = (widget_instance *) client_data; | |
81 | ||
82 | if (instance->info->highlight_cb | |
83 | && !w->core.being_destroyed) | |
84 | instance->info->highlight_cb (w, instance->info->id, call_data); | |
85 | } | |
86 | ||
3fcd0186 JD |
87 | static void |
88 | enter_hook (w, client_data, call_data) | |
89 | Widget w; | |
90 | XtPointer client_data; | |
91 | XtPointer call_data; | |
92 | { | |
93 | highlight_hook (w, client_data, call_data); | |
94 | } | |
95 | ||
96 | static void | |
97 | leave_hook (w, client_data, call_data) | |
98 | Widget w; | |
99 | XtPointer client_data; | |
100 | XtPointer call_data; | |
101 | { | |
102 | highlight_hook (w, client_data, NULL); | |
103 | } | |
104 | ||
105 | ||
07bf635f | 106 | static void |
345a94f9 RS |
107 | pre_hook (w, client_data, call_data) |
108 | Widget w; | |
109 | XtPointer client_data; | |
110 | XtPointer call_data; | |
07bf635f RS |
111 | { |
112 | widget_instance* instance = (widget_instance*)client_data; | |
113 | widget_value* val; | |
114 | ||
115 | if (w->core.being_destroyed) | |
116 | return; | |
117 | ||
118 | val = lw_get_widget_value_for_widget (instance, w); | |
119 | if (instance->info->pre_activate_cb) | |
120 | instance->info->pre_activate_cb (w, instance->info->id, | |
121 | val ? val->call_data : NULL); | |
122 | } | |
123 | ||
124 | static void | |
345a94f9 RS |
125 | pick_hook (w, client_data, call_data) |
126 | Widget w; | |
127 | XtPointer client_data; | |
128 | XtPointer call_data; | |
07bf635f RS |
129 | { |
130 | widget_instance* instance = (widget_instance*)client_data; | |
131 | widget_value* contents_val = (widget_value*)call_data; | |
132 | widget_value* widget_val; | |
133 | XtPointer widget_arg; | |
134 | ||
135 | if (w->core.being_destroyed) | |
136 | return; | |
137 | ||
138 | if (instance->info->selection_cb && contents_val && contents_val->enabled | |
139 | && !contents_val->contents) | |
140 | instance->info->selection_cb (w, instance->info->id, | |
141 | contents_val->call_data); | |
142 | ||
143 | widget_val = lw_get_widget_value_for_widget (instance, w); | |
144 | widget_arg = widget_val ? widget_val->call_data : NULL; | |
145 | if (instance->info->post_activate_cb) | |
146 | instance->info->post_activate_cb (w, instance->info->id, widget_arg); | |
147 | ||
148 | } | |
149 | ||
150 | \f/* creation functions */ | |
0b96f00b | 151 | |
07bf635f | 152 | static Widget |
345a94f9 RS |
153 | xlw_create_menubar (instance) |
154 | widget_instance* instance; | |
07bf635f | 155 | { |
9acc68b1 | 156 | Widget widget; |
5acc1a62 | 157 | Arg al[5]; |
c52de5eb | 158 | int ac = 0; |
9acc68b1 | 159 | |
c52de5eb | 160 | XtSetArg (al[ac], XtNmenu, instance->info->val); ac++; |
5acc1a62 PR |
161 | #ifdef emacs |
162 | XtSetArg (al[ac], XtNshowGrip, 0); ac++; | |
163 | XtSetArg (al[ac], XtNresizeToPreferred, 1); ac++; | |
164 | XtSetArg (al[ac], XtNallowResize, 1); ac++; | |
165 | #endif | |
9acc68b1 | 166 | |
c52de5eb RS |
167 | /* This used to use XtVaCreateWidget, but an old Xt version |
168 | has a bug in XtVaCreateWidget that frees instance->info->name. */ | |
364e6904 | 169 | widget |
c52de5eb RS |
170 | = XtCreateWidget (instance->info->name, xlwMenuWidgetClass, |
171 | instance->parent, al, ac); | |
19240c20 | 172 | |
07bf635f RS |
173 | XtAddCallback (widget, XtNopen, pre_hook, (XtPointer)instance); |
174 | XtAddCallback (widget, XtNselect, pick_hook, (XtPointer)instance); | |
3fcd0186 JD |
175 | XtAddCallback (widget, XtNleaveCallback, leave_hook, (XtPointer)instance); |
176 | XtAddCallback (widget, XtNenterCallback, enter_hook, (XtPointer)instance); | |
07bf635f RS |
177 | return widget; |
178 | } | |
179 | ||
180 | static Widget | |
345a94f9 RS |
181 | xlw_create_popup_menu (instance) |
182 | widget_instance* instance; | |
07bf635f | 183 | { |
364e6904 RS |
184 | Widget popup_shell |
185 | = XtCreatePopupShell (instance->info->name, overrideShellWidgetClass, | |
186 | instance->parent, NULL, 0); | |
177c0ea7 | 187 | |
19240c20 | 188 | Widget widget; |
c52de5eb RS |
189 | Arg al[2]; |
190 | int ac = 0; | |
19240c20 | 191 | |
c52de5eb RS |
192 | XtSetArg (al[ac], XtNmenu, instance->info->val); ac++; |
193 | XtSetArg (al[ac], XtNhorizontal, False); ac++; | |
19240c20 | 194 | |
c52de5eb RS |
195 | /* This used to use XtVaManagedCreateWidget, but an old Xt version |
196 | has a bug in XtVaManagedCreateWidget that frees instance->info->name. */ | |
364e6904 | 197 | widget |
c52de5eb RS |
198 | = XtCreateManagedWidget ("popup", xlwMenuWidgetClass, |
199 | popup_shell, al, ac); | |
19240c20 | 200 | |
07bf635f | 201 | XtAddCallback (widget, XtNselect, pick_hook, (XtPointer)instance); |
3fcd0186 JD |
202 | XtAddCallback (widget, XtNleaveCallback, leave_hook, (XtPointer)instance); |
203 | XtAddCallback (widget, XtNenterCallback, enter_hook, (XtPointer)instance); | |
244c93fe | 204 | |
07bf635f RS |
205 | return popup_shell; |
206 | } | |
207 | ||
177c0ea7 | 208 | widget_creation_entry |
07bf635f RS |
209 | xlw_creation_table [] = |
210 | { | |
211 | {"menubar", xlw_create_menubar}, | |
212 | {"popup", xlw_create_popup_menu}, | |
213 | {NULL, NULL} | |
214 | }; | |
215 | ||
216 | Boolean | |
345a94f9 RS |
217 | lw_lucid_widget_p (widget) |
218 | Widget widget; | |
07bf635f RS |
219 | { |
220 | WidgetClass the_class = XtClass (widget); | |
364e6904 | 221 | |
07bf635f RS |
222 | if (the_class == xlwMenuWidgetClass) |
223 | return True; | |
224 | if (the_class == overrideShellWidgetClass) | |
364e6904 RS |
225 | return (XtClass (((CompositeWidget)widget)->composite.children [0]) |
226 | == xlwMenuWidgetClass); | |
07bf635f RS |
227 | return False; |
228 | } | |
229 | ||
230 | void | |
e226063c DL |
231 | #ifdef PROTOTYPES |
232 | xlw_update_one_widget (widget_instance* instance, Widget widget, | |
233 | widget_value* val, Boolean deep_p) | |
234 | #else | |
345a94f9 RS |
235 | xlw_update_one_widget (instance, widget, val, deep_p) |
236 | widget_instance* instance; | |
237 | Widget widget; | |
238 | widget_value* val; | |
239 | Boolean deep_p; | |
e226063c | 240 | #endif |
07bf635f | 241 | { |
c52de5eb | 242 | Arg al[1]; |
07bf635f | 243 | |
c52de5eb RS |
244 | /* This used to use XtVaSetValues, but some old Xt versions |
245 | that have a bug in XtVaCreateWidget might have it here too. */ | |
246 | XtSetArg (al[0], XtNmenu, instance->info->val); | |
247 | ||
248 | XtSetValues (widget, al, 1); | |
07bf635f RS |
249 | } |
250 | ||
251 | void | |
345a94f9 RS |
252 | xlw_update_one_value (instance, widget, val) |
253 | widget_instance* instance; | |
254 | Widget widget; | |
255 | widget_value* val; | |
07bf635f RS |
256 | { |
257 | return; | |
258 | } | |
259 | ||
260 | void | |
e226063c DL |
261 | #ifdef PROTOTYPES |
262 | xlw_pop_instance (widget_instance* instance, Boolean up) | |
263 | #else | |
345a94f9 RS |
264 | xlw_pop_instance (instance, up) |
265 | widget_instance* instance; | |
266 | Boolean up; | |
e226063c | 267 | #endif |
07bf635f RS |
268 | { |
269 | } | |
270 | ||
271 | void | |
0c7c510c | 272 | xlw_popup_menu (widget, event) |
345a94f9 | 273 | Widget widget; |
0c7c510c | 274 | XEvent *event; |
07bf635f | 275 | { |
07bf635f RS |
276 | XlwMenuWidget mw; |
277 | ||
278 | if (!XtIsShell (widget)) | |
279 | return; | |
280 | ||
281 | mw = (XlwMenuWidget)((CompositeWidget)widget)->composite.children [0]; | |
282 | ||
0c7c510c | 283 | if (event) |
244c93fe | 284 | XtCallActionProc ((Widget) mw, "start", event, NULL, 0); |
0c7c510c RS |
285 | else |
286 | { | |
244c93fe JD |
287 | XEvent dummy; |
288 | XButtonPressedEvent *bd = &dummy.xbutton; | |
289 | ||
290 | bd->type = ButtonPress; | |
291 | bd->serial = 0; | |
292 | bd->send_event = 0; | |
293 | bd->display = XtDisplay (widget); | |
294 | bd->window = XtWindow (XtParent (widget)); | |
295 | bd->time = CurrentTime; | |
296 | bd->button = 0; | |
297 | XQueryPointer (bd->display, bd->window, &bd->root, | |
298 | &bd->subwindow, &bd->x_root, &bd->y_root, | |
299 | &bd->x, &bd->y, &bd->state); | |
300 | ||
301 | XtCallActionProc ((Widget) mw, "start", &dummy, NULL, 0); | |
0c7c510c | 302 | } |
07bf635f RS |
303 | } |
304 | ||
305 | \f/* Destruction of instances */ | |
306 | void | |
345a94f9 RS |
307 | xlw_destroy_instance (instance) |
308 | widget_instance* instance; | |
07bf635f RS |
309 | { |
310 | if (instance->widget) | |
311 | XtDestroyWidget (instance->widget); | |
312 | } | |
313 | ||
ab5796a9 MB |
314 | /* arch-tag: 541e3912-477d-406e-9bf2-dbf2b7ff8c3b |
315 | (do not change this comment) */ |