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 "client.h"
  23 #include "group.h"
  24 #include "event.h"
  25 #include "obt/display.h"
  26 #include "obt/keyboard.h"
  27 #include "obt/prop.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 static void prompt_run_callback(ObPrompt *self, gint result);
  54
  55 void prompt_startup(gboolean reconfig)
  56 {
  57     RrColor *c_button, *c_focus, *c_press, *c_pfocus;
  58
  59     /* note: this is not a copy, don't free it */
  60     prompt_a_bg = ob_rr_theme->osd_hilite_bg;
  61
  62     prompt_a_button = RrAppearanceCopy(ob_rr_theme->a_focused_unpressed_close);
  63     prompt_a_focus = RrAppearanceCopy(ob_rr_theme->a_hover_focused_close);
  64     prompt_a_press = RrAppearanceCopy(ob_rr_theme->a_focused_pressed_close);
  65     prompt_a_pfocus = RrAppearanceCopy(ob_rr_theme->a_focused_pressed_close);
  66
  67     c_button = prompt_a_button->texture[0].data.mask.color;
  68     c_focus = prompt_a_focus->texture[0].data.mask.color;
  69     c_press = prompt_a_press->texture[0].data.mask.color;
  70     c_pfocus = prompt_a_press->texture[0].data.mask.color;
  71
  72     RrAppearanceRemoveTextures(prompt_a_button);
  73     RrAppearanceRemoveTextures(prompt_a_focus);
  74     RrAppearanceRemoveTextures(prompt_a_press);
  75     RrAppearanceRemoveTextures(prompt_a_pfocus);
  76
  77     /* texture[0] is the text and texture[1-4] (for prompt_a_focus and
  78        prompt_a_pfocus) is lineart to show where keyboard focus is */
  79     RrAppearanceAddTextures(prompt_a_button, 1);
  80     RrAppearanceAddTextures(prompt_a_focus, 5);
  81     RrAppearanceAddTextures(prompt_a_press, 1);
  82     RrAppearanceAddTextures(prompt_a_pfocus, 5);
  83
  84     /* totally cheating here.. */
  85     prompt_a_button->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
  86     prompt_a_focus->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
  87     prompt_a_press->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
  88     prompt_a_pfocus->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
  89
  90     prompt_a_button->texture[0].data.text.justify = RR_JUSTIFY_CENTER;
  91     prompt_a_focus->texture[0].data.text.justify = RR_JUSTIFY_CENTER;
  92     prompt_a_press->texture[0].data.text.justify = RR_JUSTIFY_CENTER;
  93     prompt_a_pfocus->texture[0].data.text.justify = RR_JUSTIFY_CENTER;
  94
  95     prompt_a_button->texture[0].data.text.color = c_button;
  96     prompt_a_focus->texture[0].data.text.color = c_focus;
  97     prompt_a_press->texture[0].data.text.color = c_press;
  98     prompt_a_pfocus->texture[0].data.text.color = c_pfocus;
  99
 100     prompt_a_focus->texture[1].data.lineart.color = c_focus;
 101     prompt_a_focus->texture[2].data.lineart.color = c_focus;
 102     prompt_a_focus->texture[3].data.lineart.color = c_focus;
 103     prompt_a_focus->texture[4].data.lineart.color = c_focus;
 104
 105     prompt_a_pfocus->texture[1].data.lineart.color = c_press;
 106     prompt_a_pfocus->texture[2].data.lineart.color = c_press;
 107     prompt_a_pfocus->texture[3].data.lineart.color = c_press;
 108     prompt_a_pfocus->texture[4].data.lineart.color = c_press;
 109
 110     prompt_a_msg = RrAppearanceCopy(ob_rr_theme->osd_hilite_label);
 111     prompt_a_msg->texture[0].data.text.flow = TRUE;
 112
 113     if (reconfig) {
 114         GList *it;
 115         for (it = prompt_list; it; it = g_list_next(it)) {
 116             ObPrompt *p = it->data;
 117             prompt_layout(p);
 118             render_all(p);
 119         }
 120     }
 121 }
 122
 123 void prompt_shutdown(gboolean reconfig)
 124 {
 125     GList *it;
 126
 127     if (!reconfig) {
 128         for (it = prompt_list; it; it = g_list_next(it)) {
 129             ObPrompt *p = it->data;
 130             if (p->cleanup) p->cleanup(p, p->data);
 131         }
 132
 133         g_assert(prompt_list == NULL);
 134     }
 135
 136     RrAppearanceFree(prompt_a_button);
 137     RrAppearanceFree(prompt_a_focus);
 138     RrAppearanceFree(prompt_a_press);
 139     RrAppearanceFree(prompt_a_pfocus);
 140     RrAppearanceFree(prompt_a_msg);
 141 }
 142
 143 ObPrompt* prompt_new(const gchar *msg, const gchar *title,
 144                      const ObPromptAnswer *answers, gint n_answers,
 145                      gint default_result, gint cancel_result,
 146                      ObPromptCallback func, ObPromptCleanup cleanup,
 147                      gpointer data)
 148 {
 149     ObPrompt *self;
 150     XSetWindowAttributes attrib;
 151     gint i;
 152
 153     attrib.override_redirect = FALSE;
 154
 155     self = g_new0(ObPrompt, 1);
 156     self->ref = 1;
 157     self->func = func;
 158     self->cleanup = cleanup;
 159     self->data = data;
 160     self->default_result = default_result;
 161     self->cancel_result = cancel_result;
 162     self->super.type = OB_WINDOW_CLASS_PROMPT;
 163     self->super.window = XCreateWindow(obt_display, obt_root(ob_screen),
 164                                        0, 0, 1, 1, 0,
 165                                        CopyFromParent, InputOutput,
 166                                        CopyFromParent,
 167                                        CWOverrideRedirect,
 168                                        &attrib);
 169
 170     /* make it a dialog type window */
 171     OBT_PROP_SET32(self->super.window, NET_WM_WINDOW_TYPE, ATOM,
 172                    OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_DIALOG));
 173
 174     /* set the window's title */
 175     if (title)
 176         OBT_PROP_SETS(self->super.window, NET_WM_NAME, utf8, title);
 177
 178     /* listen for key presses on the window */
 179     self->event_mask = KeyPressMask;
 180
 181     /* set up the text message widow */
 182     self->msg.text = g_strdup(msg);
 183     self->msg.window = XCreateWindow(obt_display, self->super.window,
 184                                      0, 0, 1, 1, 0,
 185                                      CopyFromParent, InputOutput,
 186                                      CopyFromParent, 0, NULL);
 187     XMapWindow(obt_display, self->msg.window);
 188
 189     /* set up the buttons from the answers */
 190
 191     self->n_buttons = n_answers;
 192     if (!self->n_buttons)
 193         self->n_buttons = 1;
 194
 195     self->button = g_new0(ObPromptElement, self->n_buttons);
 196
 197     if (n_answers == 0) {
 198         g_assert(self->n_buttons == 1); /* should be set to this above.. */
 199         self->button[0].text = g_strdup(_("OK"));
 200     }
 201     else {
 202         g_assert(self->n_buttons > 0);
 203         for (i = 0; i < self->n_buttons; ++i) {
 204             self->button[i].text = g_strdup(answers[i].text);
 205             self->button[i].result = answers[i].result;
 206         }
 207     }
 208
 209     for (i = 0; i < self->n_buttons; ++i) {
 210         self->button[i].window = XCreateWindow(obt_display, self->super.window,
 211                                                0, 0, 1, 1, 0,
 212                                                CopyFromParent, InputOutput,
 213                                                CopyFromParent, 0, NULL);
 214         XMapWindow(obt_display, self->button[i].window);
 215         window_add(&self->button[i].window, PROMPT_AS_WINDOW(self));
 216
 217         /* listen for button presses on the buttons */
 218         XSelectInput(obt_display, self->button[i].window,
 219                      ButtonPressMask | ButtonReleaseMask | ButtonMotionMask);
 220     }
 221
 222     prompt_list = g_list_prepend(prompt_list, self);
 223
 224     return self;
 225 }
 226
 227 void prompt_ref(ObPrompt *self)
 228 {
 229     ++self->ref;
 230 }
 231
 232 void prompt_unref(ObPrompt *self)
 233 {
 234     if (self && --self->ref == 0) {
 235         gint i;
 236
 237         if (self->mapped)
 238             prompt_hide(self);
 239
 240         prompt_list = g_list_remove(prompt_list, self);
 241
 242         for (i = 0; i < self->n_buttons; ++i) {
 243             window_remove(self->button[i].window);
 244             XDestroyWindow(obt_display, self->button[i].window);
 245         }
 246
 247         XDestroyWindow(obt_display, self->msg.window);
 248         XDestroyWindow(obt_display, self->super.window);
 249         g_free(self);
 250     }
 251 }
 252
 253 static void prompt_layout(ObPrompt *self)
 254 {
 255     gint l, r, t, b;
 256     gint i;
 257     gint allbuttonsw, allbuttonsh, buttonx;
 258     gint w, h;
 259     gint maxw;
 260
 261     RrMargins(prompt_a_bg, &l, &t, &r, &b);
 262     l += OUTSIDE_MARGIN;
 263     t += OUTSIDE_MARGIN;
 264     r += OUTSIDE_MARGIN;
 265     b += OUTSIDE_MARGIN;
 266
 267     {
 268         Rect *area = screen_physical_area_all_monitors();
 269         maxw = MIN(MAX_WIDTH, area->width*4/5);
 270         g_free(area);
 271     }
 272
 273     /* find the button sizes and how much space we need for them */
 274     allbuttonsw = allbuttonsh = 0;
 275     for (i = 0; i < self->n_buttons; ++i) {
 276         gint bw, bh;
 277
 278         prompt_a_button->texture[0].data.text.string = self->button[i].text;
 279         prompt_a_focus->texture[0].data.text.string = self->button[i].text;
 280         prompt_a_press->texture[0].data.text.string = self->button[i].text;
 281         prompt_a_pfocus->texture[0].data.text.string = self->button[i].text;
 282         RrMinSize(prompt_a_button, &bw, &bh);
 283         self->button[i].width = bw;
 284         self->button[i].height = bh;
 285         RrMinSize(prompt_a_focus, &bw, &bh);
 286         self->button[i].width = MAX(self->button[i].width, bw);
 287         self->button[i].height = MAX(self->button[i].height, bh);
 288         RrMinSize(prompt_a_press, &bw, &bh);
 289         self->button[i].width = MAX(self->button[i].width, bw);
 290         self->button[i].height = MAX(self->button[i].height, bh);
 291         RrMinSize(prompt_a_pfocus, &bw, &bh);
 292         self->button[i].width = MAX(self->button[i].width, bw);
 293         self->button[i].height = MAX(self->button[i].height, bh);
 294
 295         self->button[i].width += BUTTON_HMARGIN * 2;
 296         self->button[i].height += BUTTON_VMARGIN * 2;
 297
 298         allbuttonsw += self->button[i].width + (i > 0 ? BUTTON_SEPARATION : 0);
 299         allbuttonsh = MAX(allbuttonsh, self->button[i].height);
 300     }
 301
 302     self->msg_wbound = MAX(allbuttonsw, maxw);
 303
 304     /* measure the text message area */
 305     prompt_a_msg->texture[0].data.text.string = self->msg.text;
 306     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 307     RrMinSize(prompt_a_msg, &self->msg.width, &self->msg.height);
 308
 309     /* width and height inside the outer margins */
 310     w = MAX(self->msg.width, allbuttonsw);
 311     h = self->msg.height + MSG_BUTTON_SEPARATION + allbuttonsh;
 312
 313     /* position the text message */
 314     self->msg.x = l + (w - self->msg.width) / 2;
 315     self->msg.y = t;
 316
 317     /* position the button buttons on the right of the dialog */
 318     buttonx = l + w;
 319     for (i = self->n_buttons - 1; i >= 0; --i) {
 320         self->button[i].x = buttonx - self->button[i].width;
 321         buttonx -= self->button[i].width + BUTTON_SEPARATION;
 322         self->button[i].y = t + h - allbuttonsh;
 323         self->button[i].y += (allbuttonsh - self->button[i].height) / 2;
 324     }
 325
 326     /* size and position the toplevel window */
 327     prompt_resize(self, w + l + r, h + t + b);
 328
 329     /* move and resize the internal windows */
 330     XMoveResizeWindow(obt_display, self->msg.window,
 331                       self->msg.x, self->msg.y,
 332                       self->msg.width, self->msg.height);
 333     for (i = 0; i < self->n_buttons; ++i)
 334         XMoveResizeWindow(obt_display, self->button[i].window,
 335                           self->button[i].x, self->button[i].y,
 336                           self->button[i].width, self->button[i].height);
 337 }
 338
 339 static void prompt_resize(ObPrompt *self, gint w, gint h)
 340 {
 341     XConfigureRequestEvent req;
 342     XSizeHints hints;
 343
 344     self->width = w;
 345     self->height = h;
 346
 347     /* the user can't resize the prompt */
 348     hints.flags = PMinSize | PMaxSize;
 349     hints.min_width = hints.max_width = w;
 350     hints.min_height = hints.max_height = h;
 351     XSetWMNormalHints(obt_display, self->super.window, &hints);
 352
 353     if (self->mapped) {
 354         /* send a configure request like a normal client would */
 355         req.type = ConfigureRequest;
 356         req.display = obt_display;
 357         req.parent = obt_root(ob_screen);
 358         req.window = self->super.window;
 359         req.width = w;
 360         req.height = h;
 361         req.value_mask = CWWidth | CWHeight;
 362         XSendEvent(req.display, req.window, FALSE, StructureNotifyMask,
 363                    (XEvent*)&req);
 364     }
 365     else
 366         XResizeWindow(obt_display, self->super.window, w, h);
 367 }
 368
 369 static void setup_button_focus_tex(ObPromptElement *e, RrAppearance *a,
 370                                    gboolean on)
 371 {
 372     gint i, l, r, t, b;
 373
 374     for (i = 1; i < 5; ++i)
 375         a->texture[i].type = on ? RR_TEXTURE_LINE_ART : RR_TEXTURE_NONE;
 376
 377     if (!on) return;
 378
 379     RrMargins(a, &l, &t, &r, &b);
 380     l += MIN(BUTTON_HMARGIN, BUTTON_VMARGIN) / 2;
 381     r += MIN(BUTTON_HMARGIN, BUTTON_VMARGIN) / 2;
 382     t += MIN(BUTTON_HMARGIN, BUTTON_VMARGIN) / 2;
 383     b += MIN(BUTTON_HMARGIN, BUTTON_VMARGIN) / 2;
 384
 385     /* top line */
 386     a->texture[1].data.lineart.x1 = l;
 387     a->texture[1].data.lineart.x2 = e->width - r - 1;
 388     a->texture[1].data.lineart.y1 = t;
 389     a->texture[1].data.lineart.y2 = t;
 390
 391     /* bottom line */
 392     a->texture[2].data.lineart.x1 = l;
 393     a->texture[2].data.lineart.x2 = e->width - r - 1;
 394     a->texture[2].data.lineart.y1 = e->height - b - 1;
 395     a->texture[2].data.lineart.y2 = e->height - b - 1;
 396
 397     /* left line */
 398     a->texture[3].data.lineart.x1 = l;
 399     a->texture[3].data.lineart.x2 = l;
 400     a->texture[3].data.lineart.y1 = t;
 401     a->texture[3].data.lineart.y2 = e->height - b - 1;
 402
 403     /* right line */
 404     a->texture[4].data.lineart.x1 = e->width - r - 1;
 405     a->texture[4].data.lineart.x2 = e->width - r - 1;
 406     a->texture[4].data.lineart.y1 = t;
 407     a->texture[4].data.lineart.y2 = e->height - b - 1;
 408 }
 409
 410 static void render_button(ObPrompt *self, ObPromptElement *e)
 411 {
 412     RrAppearance *a;
 413
 414     if (e->pressed && self->focus == e) a = prompt_a_pfocus;
 415     else if (self->focus == e)          a = prompt_a_focus;
 416     else if (e->pressed)                a = prompt_a_press;
 417     else                                a = prompt_a_button;
 418
 419     a->surface.parent = prompt_a_bg;
 420     a->surface.parentx = e->x;
 421     a->surface.parenty = e->y;
 422
 423     /* draw the keyfocus line */
 424     if (a == prompt_a_pfocus || a == prompt_a_focus)
 425         setup_button_focus_tex(e, a, TRUE);
 426
 427     a->texture[0].data.text.string = e->text;
 428     RrPaint(a, e->window, e->width, e->height);
 429
 430     /* turn off the keyfocus line so that it doesn't affect size calculations
 431      */
 432     if (a == prompt_a_pfocus || a == prompt_a_focus)
 433         setup_button_focus_tex(e, a, FALSE);
 434 }
 435
 436 static void render_all(ObPrompt *self)
 437 {
 438     gint i;
 439
 440     RrPaint(prompt_a_bg, self->super.window, self->width, self->height);
 441
 442     prompt_a_msg->surface.parent = prompt_a_bg;
 443     prompt_a_msg->surface.parentx = self->msg.x;
 444     prompt_a_msg->surface.parenty = self->msg.y;
 445
 446     prompt_a_msg->texture[0].data.text.string = self->msg.text;
 447     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 448     RrPaint(prompt_a_msg, self->msg.window, self->msg.width, self->msg.height);
 449
 450     for (i = 0; i < self->n_buttons; ++i)
 451         render_button(self, &self->button[i]);
 452 }
 453
 454 void prompt_show(ObPrompt *self, ObClient *parent, gboolean modal)
 455 {
 456     gint i;
 457
 458     if (self->mapped) {
 459         /* activate the prompt */
 460         OBT_PROP_MSG(ob_screen, self->super.window, NET_ACTIVE_WINDOW,
 461                      1, /* from an application.. */
 462                      event_curtime,
 463                      0,
 464                      0, 0);
 465         return;
 466     }
 467
 468     /* set the focused button (if not found then the first button is used) */
 469     self->focus = &self->button[0];
 470     for (i = 0; i < self->n_buttons; ++i)
 471         if (self->button[i].result == self->default_result) {
 472             self->focus = &self->button[i];
 473             break;
 474         }
 475
 476     if (parent) {
 477         Atom states[1];
 478         gint nstates;
 479         Window p;
 480         XWMHints h;
 481
 482         if (parent->group) {
 483             /* make it transient for the window's group */
 484             h.flags = WindowGroupHint;
 485             h.window_group = parent->group->leader;
 486             p = obt_root(ob_screen);
 487         }
 488         else {
 489             /* make it transient for the window directly */
 490             h.flags = 0;
 491             p = parent->window;
 492         }
 493
 494         XSetWMHints(obt_display, self->super.window, &h);
 495         OBT_PROP_SET32(self->super.window, WM_TRANSIENT_FOR, WINDOW, p);
 496
 497         states[0] = OBT_PROP_ATOM(NET_WM_STATE_MODAL);
 498         nstates = (modal ? 1 : 0);
 499         OBT_PROP_SETA32(self->super.window, NET_WM_STATE, ATOM,
 500                         states, nstates);
 501     }
 502     else
 503         OBT_PROP_ERASE(self->super.window, WM_TRANSIENT_FOR);
 504
 505     /* set up the dialog and render it */
 506     prompt_layout(self);
 507     render_all(self);
 508
 509     client_manage(self->super.window, self);
 510
 511     self->mapped = TRUE;
 512 }
 513
 514 void prompt_hide(ObPrompt *self)
 515 {
 516     XUnmapWindow(obt_display, self->super.window);
 517     self->mapped = FALSE;
 518 }
 519
 520 gboolean prompt_key_event(ObPrompt *self, XEvent *e)
 521 {
 522     gboolean shift;
 523     guint shift_mask;
 524
 525     if (e->type != KeyPress) return FALSE;
 526
 527     shift_mask = obt_keyboard_modkey_to_modmask(OBT_KEYBOARD_MODKEY_SHIFT);
 528     shift = !!(e->xkey.state & shift_mask);
 529
 530     /* only accept shift */
 531     if (e->xkey.state != 0 && e->xkey.state != shift_mask)
 532         return FALSE;
 533
 534     if (e->xkey.keycode == ob_keycode(OB_KEY_ESCAPE))
 535         prompt_cancel(self);
 536     else if (e->xkey.keycode == ob_keycode(OB_KEY_RETURN) ||
 537              e->xkey.keycode == ob_keycode(OB_KEY_SPACE))
 538     {
 539         prompt_run_callback(self, self->focus->result);
 540     }
 541     else if (e->xkey.keycode == ob_keycode(OB_KEY_TAB) ||
 542              e->xkey.keycode == ob_keycode(OB_KEY_LEFT) ||
 543              e->xkey.keycode == ob_keycode(OB_KEY_RIGHT))
 544     {
 545         gint i;
 546         gboolean left;
 547         ObPromptElement *oldfocus;
 548
 549         left = e->xkey.keycode == ob_keycode(OB_KEY_LEFT) ||
 550             (e->xkey.keycode == ob_keycode(OB_KEY_TAB) && shift);
 551         oldfocus = self->focus;
 552
 553         for (i = 0; i < self->n_buttons; ++i)
 554             if (self->focus == &self->button[i]) break;
 555         i += (left ? -1 : 1);
 556         if (i < 0) i = self->n_buttons - 1;
 557         else if (i >= self->n_buttons) i = 0;
 558         self->focus = &self->button[i];
 559
 560         if (oldfocus != self->focus) render_button(self, oldfocus);
 561         render_button(self, self->focus);
 562     }
 563     return TRUE;
 564 }
 565
 566 gboolean prompt_mouse_event(ObPrompt *self, XEvent *e)
 567 {
 568     gint i;
 569     ObPromptElement *but;
 570
 571     if (e->type != ButtonPress && e->type != ButtonRelease &&
 572         e->type != MotionNotify) return FALSE;
 573
 574     /* find the button */
 575     but = NULL;
 576     for (i = 0; i < self->n_buttons; ++i)
 577         if (self->button[i].window ==
 578             (e->type == MotionNotify ? e->xmotion.window : e->xbutton.window))
 579         {
 580             but = &self->button[i];
 581             break;
 582         }
 583     if (!but) return FALSE;
 584
 585     if (e->type == ButtonPress) {
 586         ObPromptElement *oldfocus;
 587
 588         oldfocus = self->focus;
 589
 590         but->pressed = TRUE;
 591         self->focus = but;
 592
 593         if (oldfocus != but) render_button(self, oldfocus);
 594         render_button(self, but);
 595     }
 596     else if (e->type == ButtonRelease) {
 597         if (but->pressed)
 598             prompt_run_callback(self, but->result);
 599     }
 600     else if (e->type == MotionNotify) {
 601         gboolean press;
 602
 603         press = (e->xmotion.x >= 0 && e->xmotion.y >= 0 &&
 604                  e->xmotion.x < but->width && e->xmotion.y < but->height);
 605
 606         if (press != but->pressed) {
 607             but->pressed = press;
 608             render_button(self, but);
 609         }
 610     }
 611     return TRUE;
 612 }
 613
 614 void prompt_cancel(ObPrompt *self)
 615 {
 616     prompt_run_callback(self, self->cancel_result);
 617 }
 618
 619 static gboolean prompt_show_message_cb(ObPrompt *p, int res, gpointer data)
 620 {
 621     return TRUE; /* call the cleanup func */
 622 }
 623
 624 static void prompt_show_message_cleanup(ObPrompt *p, gpointer data)
 625 {
 626     prompt_unref(p);
 627 }
 628
 629 ObPrompt* prompt_show_message(const gchar *msg, const gchar *title,
 630                               const gchar *answer)
 631 {
 632     ObPrompt *p;
 633     ObPromptAnswer ans[] = {
 634         { answer, 0 }
 635     };
 636
 637     p = prompt_new(msg, title, ans, 1, 0, 0,
 638                    prompt_show_message_cb, prompt_show_message_cleanup, NULL);
 639     prompt_show(p, NULL, FALSE);
 640     return p;
 641 }
 642
 643 static void prompt_run_callback(ObPrompt *self, gint result)
 644 {
 645     prompt_ref(self);
 646     if (self->func) {
 647         gboolean clean = self->func(self, self->focus->result, self->data);
 648         if (clean && self->cleanup)
 649             self->cleanup(self, self->data);
 650     }
 651     prompt_hide(self);
 652     prompt_unref(self);
 653 }