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+ − 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.
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+ − 4 Copyright (C) 2000, 2002, 2003 Ben Wing.
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+ − 5
+ − 6 This file is part of XEmacs.
+ − 7
+ − 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
+ − 11 later version.
+ − 12
+ − 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
+ − 16 for more details.
+ − 17
+ − 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. */
+ − 22
+ − 23 /* Synched up with: Not in FSF. */
+ − 24
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+ − 25 /* This file Mule-ized by Ben Wing, 7-8-00. */
+ − 26
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+ − 27 #include <config.h>
+ − 28 #include "lisp.h"
+ − 29
+ − 30 #include "buffer.h"
+ − 31 #include "commands.h" /* zmacs_regions */
+ − 32 #include "events.h"
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+ − 33 #include "frame-impl.h"
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+ − 34 #include "gui.h"
+ − 35 #include "opaque.h"
+ − 36 #include "window.h"
+ − 37
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+ − 38 #include "console-x-impl.h"
+ − 39
+ − 40 #include "EmacsFrame.h"
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+ − 41
+ − 42 static void
+ − 43 maybe_run_dbox_text_callback (LWLIB_ID id)
+ − 44 {
+ − 45 widget_value *wv;
+ − 46 int got_some;
+ − 47 wv = xmalloc_widget_value ();
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+ − 48 wv->name = xstrdup ("value");
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+ − 49 got_some = lw_get_some_values (id, wv);
+ − 50 if (got_some)
+ − 51 {
+ − 52 Lisp_Object text_field_callback;
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+ − 53 Extbyte *text_field_value = wv->value;
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+ − 54 text_field_callback = VOID_TO_LISP (wv->call_data);
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+ − 55 text_field_callback = XCAR (XCDR (text_field_callback));
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+ − 56 if (text_field_value)
+ − 57 {
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+ − 58 void *tmp =
+ − 59 LISP_TO_VOID (cons3 (Qnil,
+ − 60 list2 (text_field_callback,
+ − 61 build_ext_string (text_field_value,
+ − 62 Qlwlib_encoding)),
+ − 63 Qnil));
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+ − 64 popup_selection_callback (0, id, (XtPointer) tmp);
+ − 65 }
+ − 66 }
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+ − 67 /* This code tried to optimize, newing/freeing. This is generally
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+ − 68 unsafe so we will always strdup and always use
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+ − 69 free_widget_value_tree. */
+ − 70 free_widget_value_tree (wv);
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+ − 71 }
+ − 72
+ − 73 static void
+ − 74 dbox_selection_callback (Widget widget, LWLIB_ID id, XtPointer client_data)
+ − 75 {
+ − 76 /* This is called with client_data == -1 when WM_DELETE_WINDOW is sent
+ − 77 instead of a button being selected. */
+ − 78 struct device *d = get_device_from_display (XtDisplay (widget));
+ − 79 struct frame *f = 0;
+ − 80 Widget cur_widget = widget;
+ − 81
+ − 82 /* The parent which is actually connected to our EmacsFrame may be a
+ − 83 ways up the tree. */
+ − 84 while (!f && cur_widget)
+ − 85 {
+ − 86 f = x_any_window_to_frame (d, XtWindow (cur_widget));
+ − 87 cur_widget = XtParent (cur_widget);
+ − 88 }
+ − 89
+ − 90 if (popup_handled_p (id))
+ − 91 return;
+ − 92 assert (popup_up_p != 0);
+ − 93 ungcpro_popup_callbacks (id);
+ − 94 popup_up_p--;
+ − 95 maybe_run_dbox_text_callback (id);
+ − 96 popup_selection_callback (widget, id, client_data);
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+ − 97 /* #### need to error-protect! will do so when i merge in
+ − 98 my working ws */
+ − 99 va_run_hook_with_args (Qdelete_dialog_box_hook, 1, make_int (id));
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+ − 100 lw_destroy_all_widgets (id);
+ − 101
+ − 102 /* The Motif dialog box sets the keyboard focus to itself. When it
+ − 103 goes away we have to take care of getting the focus back
+ − 104 ourselves. */
+ − 105 #ifdef EXTERNAL_WIDGET
+ − 106 /* #### Not sure if this special case is necessary. */
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+ − 107 if (f && !FRAME_X_EXTERNAL_WINDOW_P (f))
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+ − 108 #else
+ − 109 if (f)
+ − 110 #endif
+ − 111 lw_set_keyboard_focus (FRAME_X_SHELL_WIDGET (f), FRAME_X_TEXT_WIDGET (f));
+ − 112 }
+ − 113
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+ − 114 static const Extbyte * const button_names [] = {
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+ − 115 "button1", "button2", "button3", "button4", "button5",
+ − 116 "button6", "button7", "button8", "button9", "button10" };
+ − 117
+ − 118 static widget_value *
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+ − 119 dbox_descriptor_to_widget_value (Lisp_Object keys)
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+ − 120 {
+ − 121 /* This function can GC */
+ − 122 int lbuttons = 0, rbuttons = 0;
+ − 123 int partition_seen = 0;
+ − 124 int text_field_p = 0;
+ − 125 int allow_text_p = 1;
+ − 126 widget_value *prev = 0, *kids = 0;
+ − 127 int n = 0;
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+ − 128 int count;
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+ − 129 Lisp_Object wv_closure, gui_item;
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+ − 130 Lisp_Object question = Qnil;
+ − 131 Lisp_Object buttons = Qnil;
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+ − 132 /* Lisp_Object title = Qnil; #### currently unused */
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+ − 133
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+ − 134 {
+ − 135 EXTERNAL_PROPERTY_LIST_LOOP_3 (key, value, keys)
+ − 136 {
+ − 137 if (EQ (key, Q_question))
+ − 138 {
+ − 139 CHECK_STRING (value);
+ − 140 question = value;
+ − 141 }
+ − 142 else if (EQ (key, Q_title))
+ − 143 {
+ − 144 CHECK_STRING (value);
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+ − 145 /* title = value; */
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+ − 146 }
+ − 147 else if (EQ (key, Q_buttons))
+ − 148 {
+ − 149 CHECK_LIST (value);
+ − 150 buttons = value;
+ − 151 }
+ − 152 else
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+ − 153 invalid_constant ("Unrecognized question-dialog keyword", key);
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+ − 154 }
+ − 155 }
+ − 156
+ − 157 if (NILP (question))
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+ − 158 sferror ("Dialog descriptor provides no question", keys);
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+ − 159
+ − 160 /* Inhibit GC during this conversion. The reasons for this are
+ − 161 the same as in menu_item_descriptor_to_widget_value(); see
+ − 162 the large comment above that function. */
+ − 163
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+ − 164 count = begin_gc_forbidden ();
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+ − 165
+ − 166 kids = prev = xmalloc_widget_value ();
+ − 167
+ − 168 /* Also make sure that we free the partially-created widget_value
+ − 169 tree on Lisp error. */
+ − 170
+ − 171 wv_closure = make_opaque_ptr (kids);
+ − 172 record_unwind_protect (widget_value_unwind, wv_closure);
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+ − 173 prev->name = xstrdup ("message");
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+ − 174 LISP_STRING_TO_EXTERNAL_MALLOC (question, prev->value, Qlwlib_encoding);
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+ − 175 prev->enabled = 1;
+ − 176
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+ − 177 {
+ − 178 EXTERNAL_LIST_LOOP_2 (button, buttons)
+ − 179 {
+ − 180 widget_value *wv;
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+ − 181
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+ − 182 if (NILP (button))
+ − 183 {
+ − 184 if (partition_seen)
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+ − 185 sferror ("More than one partition (nil) seen in dbox spec",
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+ − 186 keys);
+ − 187 partition_seen = 1;
+ − 188 continue;
+ − 189 }
+ − 190 CHECK_VECTOR (button);
+ − 191 wv = xmalloc_widget_value ();
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+ − 192
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+ − 193 gui_item = gui_parse_item_keywords (button);
+ − 194 if (!button_item_to_widget_value (Qdialog,
+ − 195 gui_item, wv, allow_text_p, 1, 0, 1))
+ − 196 {
+ − 197 free_widget_value_tree (wv);
+ − 198 continue;
+ − 199 }
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+ − 200
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+ − 201 if (wv->type == TEXT_TYPE)
+ − 202 {
+ − 203 text_field_p = 1;
+ − 204 allow_text_p = 0; /* only allow one */
+ − 205 }
+ − 206 else /* it's a button */
+ − 207 {
+ − 208 allow_text_p = 0; /* only allow text field at the front */
+ − 209 if (wv->value)
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+ − 210 xfree (wv->value, char *);
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+ − 211 wv->value = wv->name; /* what a mess... */
+ − 212 wv->name = xstrdup (button_names [n]);
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+ − 213
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+ − 214 if (partition_seen)
+ − 215 rbuttons++;
+ − 216 else
+ − 217 lbuttons++;
+ − 218 n++;
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+ − 219
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+ − 220 if (lbuttons > 9 || rbuttons > 9)
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+ − 221 sferror ("Too many buttons (9)",
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+ − 222 keys); /* #### this leaks */
+ − 223 }
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+ − 224
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+ − 225 prev->next = wv;
+ − 226 prev = wv;
+ − 227 }
+ − 228 }
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+ − 229
+ − 230 if (n == 0)
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+ − 231 sferror ("Dialog boxes must have some buttons", keys);
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+ − 232
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+ − 233 {
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+ − 234 Extbyte type = (text_field_p ? 'P' : 'Q');
+ − 235 static Extbyte tmp_dbox_name [255];
+ − 236
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+ − 237 widget_value *dbox;
+ − 238 sprintf (tmp_dbox_name, "%c%dBR%d", type, lbuttons + rbuttons, rbuttons);
+ − 239 dbox = xmalloc_widget_value ();
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+ − 240 dbox->name = xstrdup (tmp_dbox_name);
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+ − 241 dbox->contents = kids;
+ − 242
+ − 243 /* No more need to free the half-filled-in structures. */
+ − 244 set_opaque_ptr (wv_closure, 0);
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+ − 245 unbind_to (count);
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+ − 246 return dbox;
+ − 247 }
+ − 248 }
+ − 249
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+ − 250 static Lisp_Object
+ − 251 x_make_dialog_box_internal (struct frame* f, Lisp_Object type,
+ − 252 Lisp_Object keys)
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+ − 253 {
+ − 254 int dbox_id;
+ − 255 widget_value *data;
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+ − 256 Widget parent;
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+ − 257
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+ − 258 if (!EQ (type, Qquestion))
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+ − 259 signal_error (Qunimplemented, "Dialog box type", type);
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+ − 260
+ − 261 data = dbox_descriptor_to_widget_value (keys);
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+ − 262
+ − 263 parent = FRAME_X_SHELL_WIDGET (f);
+ − 264
+ − 265 dbox_id = new_lwlib_id ();
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+ − 266 (void) lw_create_widget (data->name, "dialog", dbox_id, data, parent, 1, 0,
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+ − 267 dbox_selection_callback, 0);
+ − 268 lw_modify_all_widgets (dbox_id, data, True);
+ − 269 lw_modify_all_widgets (dbox_id, data->contents, True);
+ − 270 free_popup_widget_value_tree (data);
+ − 271
+ − 272 gcpro_popup_callbacks (dbox_id);
+ − 273
+ − 274 /* Setting zmacs-region-stays is necessary here because executing a
+ − 275 command from a dialog is really a two-command process: the first
+ − 276 command (bound to the button-click) simply pops up the dialog,
+ − 277 and returns. This causes a sequence of magic-events (destined
+ − 278 for the dialog widget) to begin. Eventually, a dialog item is
+ − 279 selected, and a misc-user-event blip is pushed onto the end of
+ − 280 the input stream, which is then executed by the event loop.
+ − 281
+ − 282 So there are two command-events, with a bunch of magic-events
+ − 283 between them. We don't want the *first* command event to alter
+ − 284 the state of the region, so that the region can be available as
+ − 285 an argument for the second command. */
+ − 286 if (zmacs_regions)
+ − 287 zmacs_region_stays = 1;
+ − 288
+ − 289 popup_up_p++;
+ − 290 lw_pop_up_all_widgets (dbox_id);
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+ − 291
+ − 292 /* #### this could (theoretically) cause problems if we are up for
+ − 293 a REALLY REALLY long time -- too big to fit into lisp integer. */
+ − 294 return make_int (dbox_id);
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+ − 295 }
+ − 296
+ − 297 void
+ − 298 syms_of_dialog_x (void)
+ − 299 {
+ − 300 }
+ − 301
+ − 302 void
+ − 303 console_type_create_dialog_x (void)
+ − 304 {
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+ − 305 CONSOLE_HAS_METHOD (x, make_dialog_box_internal);
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+ − 306 }
+ − 307
+ − 308 void
+ − 309 vars_of_dialog_x (void)
+ − 310 {
+ − 311 #if defined (LWLIB_DIALOGS_LUCID)
+ − 312 Fprovide (intern ("lucid-dialogs"));
+ − 313 #elif defined (LWLIB_DIALOGS_MOTIF)
+ − 314 Fprovide (intern ("motif-dialogs"));
+ − 315 #elif defined (LWLIB_DIALOGS_ATHENA)
+ − 316 Fprovide (intern ("athena-dialogs"));
+ − 317 #endif
+ − 318 }