openbox/prompt.c

   1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
   2
   3    prompt.c for the Openbox window manager
   4    Copyright (c) 2008        Dana Jansens
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    See the COPYING file for a copy of the GNU General Public License.
  17 */
  18
  19 #include "prompt.h"
  20 #include "openbox.h"
  21 #include "screen.h"
  22 #include "openbox.h"
  23 #include "client.h"
  24 #include "group.h"
  25 #include "prop.h"
  26 #include "modkeys.h"
  27 #include "event.h"
  28 #include "gettext.h"
  29
  30 static GList *prompt_list = NULL;
  31
  32 /* we construct these */
  33 static RrAppearance *prompt_a_bg;
  34 static RrAppearance *prompt_a_button;
  35 static RrAppearance *prompt_a_focus;
  36 static RrAppearance *prompt_a_press;
  37 static RrAppearance *prompt_a_pfocus;
  38 /* we change the max width which would screw with others */
  39 static RrAppearance *prompt_a_msg;
  40
  41 /* sizing stuff */
  42 #define OUTSIDE_MARGIN 4
  43 #define MSG_BUTTON_SEPARATION 4
  44 #define BUTTON_SEPARATION 4
  45 #define BUTTON_VMARGIN 4
  46 #define BUTTON_HMARGIN 12
  47 #define MAX_WIDTH 400
  48
  49 static void prompt_layout(ObPrompt *self);
  50 static void render_all(ObPrompt *self);
  51 static void render_button(ObPrompt *self, ObPromptElement *e);
  52 static void prompt_resize(ObPrompt *self, gint w, gint h);
  53
  54 void prompt_startup(gboolean reconfig)
  55 {
  56     RrColor *c_button, *c_focus, *c_press, *c_pfocus;
  57
  58     /* note: this is not a copy, don't free it */
  59     prompt_a_bg = ob_rr_theme->osd_hilite_bg;
  60
  61     prompt_a_button = RrAppearanceCopy(ob_rr_theme->a_focused_unpressed_close);
  62     prompt_a_focus = RrAppearanceCopy(ob_rr_theme->a_hover_focused_close);
  63     prompt_a_press = RrAppearanceCopy(ob_rr_theme->a_focused_pressed_close);
  64     prompt_a_pfocus = RrAppearanceCopy(ob_rr_theme->a_focused_pressed_close);
  65
  66     c_button = prompt_a_button->texture[0].data.mask.color;
  67     c_focus = prompt_a_focus->texture[0].data.mask.color;
  68     c_press = prompt_a_press->texture[0].data.mask.color;
  69     c_pfocus = prompt_a_press->texture[0].data.mask.color;
  70
  71     RrAppearanceRemoveTextures(prompt_a_button);
  72     RrAppearanceRemoveTextures(prompt_a_focus);
  73     RrAppearanceRemoveTextures(prompt_a_press);
  74     RrAppearanceRemoveTextures(prompt_a_pfocus);
  75
  76     /* texture[0] is the text and texture[1-4] (for prompt_a_focus and
  77        prompt_a_pfocus) is lineart to show where keyboard focus is */
  78     RrAppearanceAddTextures(prompt_a_button, 1);
  79     RrAppearanceAddTextures(prompt_a_focus, 5);
  80     RrAppearanceAddTextures(prompt_a_press, 1);
  81     RrAppearanceAddTextures(prompt_a_pfocus, 5);
  82
  83     /* totally cheating here.. */
  84     prompt_a_button->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
  85     prompt_a_focus->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
  86     prompt_a_press->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
  87     prompt_a_pfocus->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
  88
  89     prompt_a_button->texture[0].data.text.justify = RR_JUSTIFY_CENTER;
  90     prompt_a_focus->texture[0].data.text.justify = RR_JUSTIFY_CENTER;
  91     prompt_a_press->texture[0].data.text.justify = RR_JUSTIFY_CENTER;
  92     prompt_a_pfocus->texture[0].data.text.justify = RR_JUSTIFY_CENTER;
  93
  94     prompt_a_button->texture[0].data.text.color = c_button;
  95     prompt_a_focus->texture[0].data.text.color = c_focus;
  96     prompt_a_press->texture[0].data.text.color = c_press;
  97     prompt_a_pfocus->texture[0].data.text.color = c_press;
  98
  99     prompt_a_focus->texture[1].data.lineart.color = c_focus;
 100     prompt_a_focus->texture[2].data.lineart.color = c_focus;
 101     prompt_a_focus->texture[3].data.lineart.color = c_focus;
 102     prompt_a_focus->texture[4].data.lineart.color = c_focus;
 103
 104     prompt_a_pfocus->texture[1].data.lineart.color = c_press;
 105     prompt_a_pfocus->texture[2].data.lineart.color = c_press;
 106     prompt_a_pfocus->texture[3].data.lineart.color = c_press;
 107     prompt_a_pfocus->texture[4].data.lineart.color = c_press;
 108
 109     prompt_a_msg = RrAppearanceCopy(ob_rr_theme->osd_hilite_label);
 110     prompt_a_msg->texture[0].data.text.flow = TRUE;
 111
 112     if (reconfig) {
 113         GList *it;
 114         for (it = prompt_list; it; it = g_list_next(it)) {
 115             ObPrompt *p = it->data;
 116             prompt_layout(p);
 117             render_all(p);
 118         }
 119     }
 120 }
 121
 122 void prompt_shutdown(gboolean reconfig)
 123 {
 124     RrAppearanceFree(prompt_a_button);
 125     RrAppearanceFree(prompt_a_focus);
 126     RrAppearanceFree(prompt_a_press);
 127     RrAppearanceFree(prompt_a_pfocus);
 128     RrAppearanceFree(prompt_a_msg);
 129 }
 130
 131 ObPrompt* prompt_new(const gchar *msg,
 132                      const ObPromptAnswer *answers, gint n_answers,
 133                      gint default_result, gint cancel_result,
 134                      ObPromptCallback func, gpointer data)
 135 {
 136     ObPrompt *self;
 137     XSetWindowAttributes attrib;
 138     gint i;
 139
 140     attrib.override_redirect = FALSE;
 141
 142     self = g_new0(ObPrompt, 1);
 143     self->ref = 1;
 144     self->func = func;
 145     self->data = data;
 146     self->default_result = default_result;
 147     self->cancel_result = cancel_result;
 148     self->super.type = Window_Prompt;
 149     self->super.window = XCreateWindow(ob_display,
 150                                        RootWindow(ob_display, ob_screen),
 151                                        0, 0, 1, 1, 0,
 152                                        CopyFromParent, InputOutput,
 153                                        CopyFromParent,
 154                                        CWOverrideRedirect,
 155                                        &attrib);
 156
 157     /* make it a dialog type window */
 158     PROP_SET32(self->super.window, net_wm_window_type, atom,
 159                prop_atoms.net_wm_window_type_dialog);
 160
 161     /* listen for key presses on the window */
 162     self->event_mask = KeyPressMask;
 163
 164     /* set up the text message widow */
 165     self->msg.text = g_strdup(msg);
 166     self->msg.window = XCreateWindow(ob_display, self->super.window,
 167                                      0, 0, 1, 1, 0,
 168                                      CopyFromParent, InputOutput,
 169                                      CopyFromParent, 0, NULL);
 170     XMapWindow(ob_display, self->msg.window);
 171
 172     /* set up the buttons from the answers */
 173
 174     self->n_buttons = n_answers;
 175     if (!self->n_buttons)
 176         self->n_buttons = 1;
 177
 178     self->button = g_new0(ObPromptElement, self->n_buttons);
 179
 180     if (n_answers == 0) {
 181         g_assert(self->n_buttons == 1); /* should be set to this above.. */
 182         self->button[0].text = g_strdup(_("OK"));
 183     }
 184     else {
 185         g_assert(self->n_buttons > 0);
 186         for (i = 0; i < self->n_buttons; ++i) {
 187             self->button[i].text = g_strdup(answers[i].text);
 188             self->button[i].result = answers[i].result;
 189         }
 190     }
 191
 192     for (i = 0; i < self->n_buttons; ++i) {
 193         self->button[i].window = XCreateWindow(ob_display, self->super.window,
 194                                                0, 0, 1, 1, 0,
 195                                                CopyFromParent, InputOutput,
 196                                                CopyFromParent, 0, NULL);
 197         XMapWindow(ob_display, self->button[i].window);
 198         g_hash_table_insert(window_map, &self->button[i].window,
 199                             PROMPT_AS_WINDOW(self));
 200
 201         /* listen for button presses on the buttons */
 202         XSelectInput(ob_display, self->button[i].window,
 203                      ButtonPressMask | ButtonReleaseMask | ButtonMotionMask);
 204     }
 205
 206     prompt_list = g_list_prepend(prompt_list, self);
 207
 208     return self;
 209 }
 210
 211 void prompt_ref(ObPrompt *self)
 212 {
 213     ++self->ref;
 214 }
 215
 216 void prompt_unref(ObPrompt *self)
 217 {
 218     if (self && --self->ref == 0) {
 219         gint i;
 220
 221         prompt_list = g_list_remove(prompt_list, self);
 222
 223         for (i = 0; i < self->n_buttons; ++i) {
 224             g_hash_table_remove(window_map, &self->button[i].window);
 225             XDestroyWindow(ob_display, self->button[i].window);
 226         }
 227
 228         XDestroyWindow(ob_display, self->msg.window);
 229         XDestroyWindow(ob_display, self->super.window);
 230         g_free(self);
 231     }
 232 }
 233
 234 static void prompt_layout(ObPrompt *self)
 235 {
 236     gint l, r, t, b;
 237     gint i;
 238     gint allbuttonsw, allbuttonsh, buttonx;
 239     gint w, h;
 240     gint maxw;
 241
 242     RrMargins(prompt_a_bg, &l, &t, &r, &b);
 243     l += OUTSIDE_MARGIN;
 244     t += OUTSIDE_MARGIN;
 245     r += OUTSIDE_MARGIN;
 246     b += OUTSIDE_MARGIN;
 247
 248     {
 249         Rect *area = screen_physical_area_all_monitors();
 250         maxw = MIN(MAX_WIDTH, area->width*4/5);
 251         g_free(area);
 252     }
 253
 254     /* find the button sizes and how much space we need for them */
 255     allbuttonsw = allbuttonsh = 0;
 256     for (i = 0; i < self->n_buttons; ++i) {
 257         gint bw, bh;
 258
 259         prompt_a_button->texture[0].data.text.string = self->button[i].text;
 260         prompt_a_focus->texture[0].data.text.string = self->button[i].text;
 261         prompt_a_press->texture[0].data.text.string = self->button[i].text;
 262         prompt_a_pfocus->texture[0].data.text.string = self->button[i].text;
 263         RrMinSize(prompt_a_button, &bw, &bh);
 264         self->button[i].width = bw;
 265         self->button[i].height = bh;
 266         RrMinSize(prompt_a_focus, &bw, &bh);
 267         g_print("button w %d h %d\n", bw, bh);
 268         self->button[i].width = MAX(self->button[i].width, bw);
 269         self->button[i].height = MAX(self->button[i].height, bh);
 270         RrMinSize(prompt_a_press, &bw, &bh);
 271         self->button[i].width = MAX(self->button[i].width, bw);
 272         self->button[i].height = MAX(self->button[i].height, bh);
 273         RrMinSize(prompt_a_pfocus, &bw, &bh);
 274         self->button[i].width = MAX(self->button[i].width, bw);
 275         self->button[i].height = MAX(self->button[i].height, bh);
 276
 277
 278         self->button[i].width += BUTTON_HMARGIN * 2;
 279         self->button[i].height += BUTTON_VMARGIN * 2;
 280
 281         allbuttonsw += self->button[i].width + (i > 0 ? BUTTON_SEPARATION : 0);
 282         allbuttonsh = MAX(allbuttonsh, self->button[i].height);
 283     }
 284
 285     self->msg_wbound = MAX(allbuttonsw, maxw);
 286
 287     /* measure the text message area */
 288     prompt_a_msg->texture[0].data.text.string = self->msg.text;
 289     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 290     RrMinSize(prompt_a_msg, &self->msg.width, &self->msg.height);
 291
 292     /* width and height inside the outer margins */
 293     w = MAX(self->msg.width, allbuttonsw);
 294     h = self->msg.height + MSG_BUTTON_SEPARATION + allbuttonsh;
 295
 296     /* position the text message */
 297     self->msg.x = l + (w - self->msg.width) / 2;
 298     self->msg.y = t;
 299
 300     /* position the button buttons on the right of the dialog */
 301     buttonx = l + w;
 302     for (i = self->n_buttons - 1; i >= 0; --i) {
 303         self->button[i].x = buttonx - self->button[i].width;
 304         buttonx -= self->button[i].width + BUTTON_SEPARATION;
 305         self->button[i].y = t + h - allbuttonsh;
 306         self->button[i].y += (allbuttonsh - self->button[i].height) / 2;
 307     }
 308
 309     /* size and position the toplevel window */
 310     prompt_resize(self, w + l + r, h + t + b);
 311
 312     /* move and resize the internal windows */
 313     XMoveResizeWindow(ob_display, self->msg.window,
 314                       self->msg.x, self->msg.y,
 315                       self->msg.width, self->msg.height);
 316     for (i = 0; i < self->n_buttons; ++i)
 317         XMoveResizeWindow(ob_display, self->button[i].window,
 318                           self->button[i].x, self->button[i].y,
 319                           self->button[i].width, self->button[i].height);
 320 }
 321
 322 static void prompt_resize(ObPrompt *self, gint w, gint h)
 323 {
 324     XConfigureRequestEvent req;
 325     XSizeHints hints;
 326
 327     self->width = w;
 328     self->height = h;
 329
 330     /* the user can't resize the prompt */
 331     hints.flags = PMinSize | PMaxSize;
 332     hints.min_width = hints.max_width = w;
 333     hints.min_height = hints.max_height = h;
 334     XSetWMNormalHints(ob_display, self->super.window, &hints);
 335
 336     if (self->mapped) {
 337         /* send a configure request like a normal client would */
 338         req.type = ConfigureRequest;
 339         req.display = ob_display;
 340         req.parent = RootWindow(ob_display, ob_screen);
 341         req.window = self->super.window;
 342         req.width = w;
 343         req.height = h;
 344         req.value_mask = CWWidth | CWHeight;
 345         XSendEvent(req.display, req.window, FALSE, StructureNotifyMask,
 346                    (XEvent*)&req);
 347     }
 348     else
 349         XResizeWindow(ob_display, self->super.window, w, h);
 350 }
 351
 352 static void setup_button_focus_tex(ObPromptElement *e, RrAppearance *a,
 353                                    gboolean on)
 354 {
 355     gint i, l, r, t, b;
 356
 357     for (i = 1; i < 5; ++i)
 358         a->texture[i].type = on ? RR_TEXTURE_LINE_ART : RR_TEXTURE_NONE;
 359
 360     if (!on) return;
 361
 362     RrMargins(a, &l, &t, &r, &b);
 363     l += MIN(BUTTON_HMARGIN, BUTTON_VMARGIN) / 2;
 364     r += MIN(BUTTON_HMARGIN, BUTTON_VMARGIN) / 2;
 365     t += MIN(BUTTON_HMARGIN, BUTTON_VMARGIN) / 2;
 366     b += MIN(BUTTON_HMARGIN, BUTTON_VMARGIN) / 2;
 367
 368     /* top line */
 369     a->texture[1].data.lineart.x1 = l;
 370     a->texture[1].data.lineart.x2 = e->width - r - 1;
 371     a->texture[1].data.lineart.y1 = t;
 372     a->texture[1].data.lineart.y2 = t;
 373
 374     /* bottom line */
 375     a->texture[2].data.lineart.x1 = l;
 376     a->texture[2].data.lineart.x2 = e->width - r - 1;
 377     a->texture[2].data.lineart.y1 = e->height - b - 1;
 378     a->texture[2].data.lineart.y2 = e->height - b - 1;
 379
 380     /* left line */
 381     a->texture[3].data.lineart.x1 = l;
 382     a->texture[3].data.lineart.x2 = l;
 383     a->texture[3].data.lineart.y1 = t;
 384     a->texture[3].data.lineart.y2 = e->height - b - 1;
 385
 386     /* right line */
 387     a->texture[4].data.lineart.x1 = e->width - r - 1;
 388     a->texture[4].data.lineart.x2 = e->width - r - 1;
 389     a->texture[4].data.lineart.y1 = t;
 390     a->texture[4].data.lineart.y2 = e->height - b - 1;
 391
 392     g_print("setting x2 %d\n", e->width - r - 1);
 393 }
 394
 395 static void render_button(ObPrompt *self, ObPromptElement *e)
 396 {
 397     RrAppearance *a;
 398
 399     if (e->pressed && self->focus == e) a = prompt_a_pfocus;
 400     else if (self->focus == e)          a = prompt_a_focus;
 401     else if (e->pressed)                a = prompt_a_press;
 402     else                                a = prompt_a_button;
 403
 404     a->surface.parent = prompt_a_bg;
 405     a->surface.parentx = e->x;
 406     a->surface.parenty = e->y;
 407
 408     /* draw the keyfocus line */
 409     if (a == prompt_a_pfocus || a == prompt_a_focus)
 410         setup_button_focus_tex(e, a, TRUE);
 411
 412     a->texture[0].data.text.string = e->text;
 413     RrPaint(a, e->window, e->width, e->height);
 414
 415     /* turn off the keyfocus line so that it doesn't affect size calculations
 416      */
 417     if (a == prompt_a_pfocus || a == prompt_a_focus)
 418         setup_button_focus_tex(e, a, FALSE);
 419 }
 420
 421 static void render_all(ObPrompt *self)
 422 {
 423     gint i;
 424
 425     RrPaint(prompt_a_bg, self->super.window, self->width, self->height);
 426
 427     prompt_a_msg->surface.parent = prompt_a_bg;
 428     prompt_a_msg->surface.parentx = self->msg.x;
 429     prompt_a_msg->surface.parenty = self->msg.y;
 430
 431     prompt_a_msg->texture[0].data.text.string = self->msg.text;
 432     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 433     RrPaint(prompt_a_msg, self->msg.window, self->msg.width, self->msg.height);
 434
 435     for (i = 0; i < self->n_buttons; ++i)
 436         render_button(self, &self->button[i]);
 437 }
 438
 439 void prompt_show(ObPrompt *self, ObClient *parent, gboolean modal)
 440 {
 441     gint i;
 442
 443     if (self->mapped) {
 444         /* activate the prompt */
 445         PROP_MSG(self->super.window, net_active_window,
 446                  1, /* from an application.. */
 447                  event_curtime,
 448                  0,
 449                  0);
 450         return;
 451     }
 452
 453     /* set the focused button (if not found then the first button is used) */
 454     self->focus = &self->button[0];
 455     for (i = 0; i < self->n_buttons; ++i)
 456         if (self->button[i].result == self->default_result) {
 457             self->focus = &self->button[i];
 458             break;
 459         }
 460
 461     if (parent) {
 462         Atom states[1];
 463         gint nstates;
 464         Window p;
 465         XWMHints h;
 466
 467         if (parent->group) {
 468             /* make it transient for the window's group */
 469             h.flags = WindowGroupHint;
 470             h.window_group = parent->group->leader;
 471             p = RootWindow(ob_display, ob_screen);
 472         }
 473         else {
 474             /* make it transient for the window directly */
 475             h.flags = 0;
 476             p = parent->window;
 477         }
 478
 479         XSetWMHints(ob_display, self->super.window, &h);
 480         PROP_SET32(self->super.window, wm_transient_for, window, p);
 481
 482         states[0] = prop_atoms.net_wm_state_modal;
 483         nstates = (modal ? 1 : 0);
 484         PROP_SETA32(self->super.window, net_wm_state, atom, states, nstates);
 485     }
 486     else
 487         PROP_ERASE(self->super.window, wm_transient_for);
 488
 489     /* set up the dialog and render it */
 490     prompt_layout(self);
 491     render_all(self);
 492
 493     client_manage(self->super.window, self);
 494
 495     self->mapped = TRUE;
 496 }
 497
 498 void prompt_hide(ObPrompt *self)
 499 {
 500     XUnmapWindow(ob_display, self->super.window);
 501     self->mapped = FALSE;
 502 }
 503
 504 gboolean prompt_key_event(ObPrompt *self, XEvent *e)
 505 {
 506     gboolean shift;
 507     guint shift_mask;
 508
 509     if (e->type != KeyPress) return FALSE;
 510
 511     g_print("key 0x%x 0x%x\n", e->xkey.keycode, ob_keycode(OB_KEY_TAB));
 512
 513     shift_mask = modkeys_key_to_mask(OB_MODKEY_KEY_SHIFT);
 514     shift = !!(e->xkey.state & shift_mask);
 515
 516     /* only accept shift */
 517     if (e->xkey.state != 0 && e->xkey.state != shift_mask)
 518         return FALSE;
 519
 520     if (e->xkey.keycode == ob_keycode(OB_KEY_ESCAPE))
 521         prompt_cancel(self);
 522     else if (e->xkey.keycode == ob_keycode(OB_KEY_RETURN) ||
 523              e->xkey.keycode == ob_keycode(OB_KEY_SPACE))
 524     {
 525         if (self->func) self->func(self, self->focus->result, self->data);
 526         prompt_hide(self);
 527     }
 528     else if (e->xkey.keycode == ob_keycode(OB_KEY_TAB) ||
 529              e->xkey.keycode == ob_keycode(OB_KEY_LEFT) ||
 530              e->xkey.keycode == ob_keycode(OB_KEY_RIGHT))
 531     {
 532         gint i;
 533         gboolean left;
 534         ObPromptElement *oldfocus;
 535
 536         left = e->xkey.keycode == ob_keycode(OB_KEY_LEFT) ||
 537             (e->xkey.keycode == ob_keycode(OB_KEY_TAB) && shift);
 538         oldfocus = self->focus;
 539
 540         for (i = 0; i < self->n_buttons; ++i)
 541             if (self->focus == &self->button[i]) break;
 542         i += (left ? -1 : 1);
 543         if (i < 0) i = self->n_buttons - 1;
 544         else if (i >= self->n_buttons) i = 0;
 545         self->focus = &self->button[i];
 546
 547         if (oldfocus != self->focus) render_button(self, oldfocus);
 548         render_button(self, self->focus);
 549     }
 550     return TRUE;
 551 }
 552
 553 gboolean prompt_mouse_event(ObPrompt *self, XEvent *e)
 554 {
 555     gint i;
 556     ObPromptElement *but;
 557
 558     if (e->type != ButtonPress && e->type != ButtonRelease &&
 559         e->type != MotionNotify) return FALSE;
 560
 561     /* find the button */
 562     but = NULL;
 563     for (i = 0; i < self->n_buttons; ++i)
 564         if (self->button[i].window ==
 565             (e->type == MotionNotify ? e->xmotion.window : e->xbutton.window))
 566         {
 567             but = &self->button[i];
 568             break;
 569         }
 570     if (!but) return FALSE;
 571
 572     if (e->type == ButtonPress) {
 573         ObPromptElement *oldfocus;
 574
 575         oldfocus = self->focus;
 576
 577         but->pressed = TRUE;
 578         self->focus = but;
 579
 580         if (oldfocus != but) render_button(self, oldfocus);
 581         render_button(self, but);
 582     }
 583     else if (e->type == ButtonRelease) {
 584         if (but->pressed) {
 585             if (self->func) self->func(self, but->result, self->data);
 586             prompt_hide(self);
 587         }
 588     }
 589     else if (e->type == MotionNotify) {
 590         gboolean press;
 591
 592         press = (e->xmotion.x >= 0 && e->xmotion.y >= 0 &&
 593                  e->xmotion.x < but->width && e->xmotion.y < but->height);
 594
 595         if (press != but->pressed) {
 596             but->pressed = press;
 597             render_button(self, but);
 598         }
 599     }
 600     return TRUE;
 601 }
 602
 603 void prompt_cancel(ObPrompt *self)
 604 {
 605     if (self->func) self->func(self, self->cancel_result, self->data);
 606     prompt_hide(self);
 607 }