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_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_slice_new0(ObPrompt);
 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     self->ic = obt_keyboard_context_new(self->super.window,
 170                                         self->super.window);
 171
 172     /* make it a dialog type window */
 173     OBT_PROP_SET32(self->super.window, NET_WM_WINDOW_TYPE, ATOM,
 174                    OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_DIALOG));
 175
 176     /* set the window's title */
 177     if (title)
 178         OBT_PROP_SETS(self->super.window, NET_WM_NAME, title);
 179
 180     /* listen for key presses on the window */
 181     self->event_mask = KeyPressMask;
 182
 183     /* set up the text message widow */
 184     self->msg.text = g_strdup(msg);
 185     self->msg.window = XCreateWindow(obt_display, self->super.window,
 186                                      0, 0, 1, 1, 0,
 187                                      CopyFromParent, InputOutput,
 188                                      CopyFromParent, 0, NULL);
 189     XMapWindow(obt_display, self->msg.window);
 190
 191     /* set up the buttons from the answers */
 192
 193     self->n_buttons = n_answers;
 194     if (!self->n_buttons)
 195         self->n_buttons = 1;
 196
 197     self->button = g_new0(ObPromptElement, self->n_buttons);
 198
 199     if (n_answers == 0) {
 200         g_assert(self->n_buttons == 1); /* should be set to this above.. */
 201         self->button[0].text = g_strdup(_("OK"));
 202     }
 203     else {
 204         g_assert(self->n_buttons > 0);
 205         for (i = 0; i < self->n_buttons; ++i) {
 206             self->button[i].text = g_strdup(answers[i].text);
 207             self->button[i].result = answers[i].result;
 208         }
 209     }
 210
 211     for (i = 0; i < self->n_buttons; ++i) {
 212         self->button[i].window = XCreateWindow(obt_display, self->super.window,
 213                                                0, 0, 1, 1, 0,
 214                                                CopyFromParent, InputOutput,
 215                                                CopyFromParent, 0, NULL);
 216         XMapWindow(obt_display, self->button[i].window);
 217         window_add(&self->button[i].window, PROMPT_AS_WINDOW(self));
 218
 219         /* listen for button presses on the buttons */
 220         XSelectInput(obt_display, self->button[i].window,
 221                      ButtonPressMask | ButtonReleaseMask | ButtonMotionMask);
 222     }
 223
 224     prompt_list = g_list_prepend(prompt_list, self);
 225
 226     return self;
 227 }
 228
 229 void prompt_ref(ObPrompt *self)
 230 {
 231     ++self->ref;
 232 }
 233
 234 void prompt_unref(ObPrompt *self)
 235 {
 236     if (self && --self->ref == 0) {
 237         gint i;
 238
 239         if (self->mapped)
 240             prompt_hide(self);
 241
 242         prompt_list = g_list_remove(prompt_list, self);
 243
 244         obt_keyboard_context_unref(self->ic);
 245
 246         for (i = 0; i < self->n_buttons; ++i) {
 247             window_remove(self->button[i].window);
 248             XDestroyWindow(obt_display, self->button[i].window);
 249         }
 250
 251         XDestroyWindow(obt_display, self->msg.window);
 252         XDestroyWindow(obt_display, self->super.window);
 253         g_slice_free(ObPrompt, self);
 254     }
 255 }
 256
 257 static void prompt_layout(ObPrompt *self)
 258 {
 259     gint l, r, t, b;
 260     gint i;
 261     gint allbuttonsw, allbuttonsh, buttonx;
 262     gint w, h;
 263     gint maxw;
 264
 265     RrMargins(prompt_a_bg, &l, &t, &r, &b);
 266     l += OUTSIDE_MARGIN;
 267     t += OUTSIDE_MARGIN;
 268     r += OUTSIDE_MARGIN;
 269     b += OUTSIDE_MARGIN;
 270
 271     {
 272         const Rect *area = screen_physical_area_all_monitors();
 273         maxw = MIN(MAX_WIDTH, area->width*4/5);
 274     }
 275
 276     /* find the button sizes and how much space we need for them */
 277     allbuttonsw = allbuttonsh = 0;
 278     for (i = 0; i < self->n_buttons; ++i) {
 279         gint bw, bh;
 280
 281         prompt_a_button->texture[0].data.text.string = self->button[i].text;
 282         prompt_a_focus->texture[0].data.text.string = self->button[i].text;
 283         prompt_a_press->texture[0].data.text.string = self->button[i].text;
 284         prompt_a_pfocus->texture[0].data.text.string = self->button[i].text;
 285         RrMinSize(prompt_a_button, &bw, &bh);
 286         self->button[i].width = bw;
 287         self->button[i].height = bh;
 288         RrMinSize(prompt_a_focus, &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_press, &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         RrMinSize(prompt_a_pfocus, &bw, &bh);
 295         self->button[i].width = MAX(self->button[i].width, bw);
 296         self->button[i].height = MAX(self->button[i].height, bh);
 297
 298         self->button[i].width += BUTTON_HMARGIN * 2;
 299         self->button[i].height += BUTTON_VMARGIN * 2;
 300
 301         allbuttonsw += self->button[i].width + (i > 0 ? BUTTON_SEPARATION : 0);
 302         allbuttonsh = MAX(allbuttonsh, self->button[i].height);
 303     }
 304
 305     self->msg_wbound = MAX(allbuttonsw, maxw);
 306
 307     /* measure the text message area */
 308     prompt_a_msg->texture[0].data.text.string = self->msg.text;
 309     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 310     RrMinSize(prompt_a_msg, &self->msg.width, &self->msg.height);
 311
 312     /* width and height inside the outer margins */
 313     w = MAX(self->msg.width, allbuttonsw);
 314     h = self->msg.height + MSG_BUTTON_SEPARATION + allbuttonsh;
 315
 316     /* position the text message */
 317     self->msg.x = l + (w - self->msg.width) / 2;
 318     self->msg.y = t;
 319
 320     /* position the button buttons on the right of the dialog */
 321     buttonx = l + w;
 322     for (i = self->n_buttons - 1; i >= 0; --i) {
 323         self->button[i].x = buttonx - self->button[i].width;
 324         buttonx -= self->button[i].width + BUTTON_SEPARATION;
 325         self->button[i].y = t + h - allbuttonsh;
 326         self->button[i].y += (allbuttonsh - self->button[i].height) / 2;
 327     }
 328
 329     /* size and position the toplevel window */
 330     prompt_resize(self, w + l + r, h + t + b);
 331
 332     /* move and resize the internal windows */
 333     XMoveResizeWindow(obt_display, self->msg.window,
 334                       self->msg.x, self->msg.y,
 335                       self->msg.width, self->msg.height);
 336     for (i = 0; i < self->n_buttons; ++i)
 337         XMoveResizeWindow(obt_display, self->button[i].window,
 338                           self->button[i].x, self->button[i].y,
 339                           self->button[i].width, self->button[i].height);
 340 }
 341
 342 static void prompt_resize(ObPrompt *self, gint w, gint h)
 343 {
 344     XConfigureRequestEvent req;
 345     XSizeHints hints;
 346
 347     self->width = w;
 348     self->height = h;
 349
 350     /* the user can't resize the prompt */
 351     hints.flags = PMinSize | PMaxSize;
 352     hints.min_width = hints.max_width = w;
 353     hints.min_height = hints.max_height = h;
 354     XSetWMNormalHints(obt_display, self->super.window, &hints);
 355
 356     if (self->mapped) {
 357         /* send a configure request like a normal client would */
 358         req.type = ConfigureRequest;
 359         req.display = obt_display;
 360         req.parent = obt_root(ob_screen);
 361         req.window = self->super.window;
 362         req.width = w;
 363         req.height = h;
 364         req.value_mask = CWWidth | CWHeight;
 365         XSendEvent(req.display, req.window, FALSE, StructureNotifyMask,
 366                    (XEvent*)&req);
 367     }
 368     else
 369         XResizeWindow(obt_display, self->super.window, w, h);
 370 }
 371
 372 static void setup_button_focus_tex(ObPromptElement *e, RrAppearance *a,
 373                                    gboolean on)
 374 {
 375     gint i, l, r, t, b;
 376
 377     for (i = 1; i < 5; ++i)
 378         a->texture[i].type = on ? RR_TEXTURE_LINE_ART : RR_TEXTURE_NONE;
 379
 380     if (!on) return;
 381
 382     RrMargins(a, &l, &t, &r, &b);
 383     l += MIN(BUTTON_HMARGIN, BUTTON_VMARGIN) / 2;
 384     r += MIN(BUTTON_HMARGIN, BUTTON_VMARGIN) / 2;
 385     t += MIN(BUTTON_HMARGIN, BUTTON_VMARGIN) / 2;
 386     b += MIN(BUTTON_HMARGIN, BUTTON_VMARGIN) / 2;
 387
 388     /* top line */
 389     a->texture[1].data.lineart.x1 = l;
 390     a->texture[1].data.lineart.x2 = e->width - r - 1;
 391     a->texture[1].data.lineart.y1 = t;
 392     a->texture[1].data.lineart.y2 = t;
 393
 394     /* bottom line */
 395     a->texture[2].data.lineart.x1 = l;
 396     a->texture[2].data.lineart.x2 = e->width - r - 1;
 397     a->texture[2].data.lineart.y1 = e->height - b - 1;
 398     a->texture[2].data.lineart.y2 = e->height - b - 1;
 399
 400     /* left line */
 401     a->texture[3].data.lineart.x1 = l;
 402     a->texture[3].data.lineart.x2 = l;
 403     a->texture[3].data.lineart.y1 = t;
 404     a->texture[3].data.lineart.y2 = e->height - b - 1;
 405
 406     /* right line */
 407     a->texture[4].data.lineart.x1 = e->width - r - 1;
 408     a->texture[4].data.lineart.x2 = e->width - r - 1;
 409     a->texture[4].data.lineart.y1 = t;
 410     a->texture[4].data.lineart.y2 = e->height - b - 1;
 411 }
 412
 413 static void render_button(ObPrompt *self, ObPromptElement *e)
 414 {
 415     RrAppearance *a;
 416
 417     if (e->hover && self->focus == e) a = prompt_a_pfocus;
 418     else if (self->focus == e)        a = prompt_a_focus;
 419     else if (e->pressed)              a = prompt_a_press;
 420     else                              a = prompt_a_button;
 421
 422     a->surface.parent = prompt_a_bg;
 423     a->surface.parentx = e->x;
 424     a->surface.parenty = e->y;
 425
 426     /* draw the keyfocus line */
 427     if (a == prompt_a_pfocus || a == prompt_a_focus)
 428         setup_button_focus_tex(e, a, TRUE);
 429
 430     a->texture[0].data.text.string = e->text;
 431     RrPaint(a, e->window, e->width, e->height);
 432
 433     /* turn off the keyfocus line so that it doesn't affect size calculations
 434      */
 435     if (a == prompt_a_pfocus || a == prompt_a_focus)
 436         setup_button_focus_tex(e, a, FALSE);
 437 }
 438
 439 static void render_all(ObPrompt *self)
 440 {
 441     gint i;
 442
 443     RrPaint(prompt_a_bg, self->super.window, self->width, self->height);
 444
 445     prompt_a_msg->surface.parent = prompt_a_bg;
 446     prompt_a_msg->surface.parentx = self->msg.x;
 447     prompt_a_msg->surface.parenty = self->msg.y;
 448
 449     prompt_a_msg->texture[0].data.text.string = self->msg.text;
 450     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 451     RrPaint(prompt_a_msg, self->msg.window, self->msg.width, self->msg.height);
 452
 453     for (i = 0; i < self->n_buttons; ++i)
 454         render_button(self, &self->button[i]);
 455 }
 456
 457 void prompt_show(ObPrompt *self, ObClient *parent, gboolean modal)
 458 {
 459     gint i;
 460
 461     if (self->mapped) {
 462         /* activate the prompt */
 463         OBT_PROP_MSG(ob_screen, self->super.window, NET_ACTIVE_WINDOW,
 464                      1, /* from an application.. */
 465                      event_time(),
 466                      0,
 467                      0, 0);
 468         return;
 469     }
 470
 471     /* set the focused button (if not found then the first button is used) */
 472     self->focus = &self->button[0];
 473     for (i = 0; i < self->n_buttons; ++i)
 474         if (self->button[i].result == self->default_result) {
 475             self->focus = &self->button[i];
 476             break;
 477         }
 478
 479     if (parent) {
 480         Atom states[1];
 481         gint nstates;
 482         Window p;
 483         XWMHints h;
 484
 485         if (parent->group) {
 486             /* make it transient for the window's group */
 487             h.flags = WindowGroupHint;
 488             h.window_group = parent->group->leader;
 489             p = obt_root(ob_screen);
 490         }
 491         else {
 492             /* make it transient for the window directly */
 493             h.flags = 0;
 494             p = parent->window;
 495         }
 496
 497         XSetWMHints(obt_display, self->super.window, &h);
 498         OBT_PROP_SET32(self->super.window, WM_TRANSIENT_FOR, WINDOW, p);
 499
 500         states[0] = OBT_PROP_ATOM(NET_WM_STATE_MODAL);
 501         nstates = (modal ? 1 : 0);
 502         OBT_PROP_SETA32(self->super.window, NET_WM_STATE, ATOM,
 503                         states, nstates);
 504     }
 505     else
 506         OBT_PROP_ERASE(self->super.window, WM_TRANSIENT_FOR);
 507
 508     /* set up the dialog and render it */
 509     prompt_layout(self);
 510     render_all(self);
 511
 512     client_manage(self->super.window, self);
 513
 514     self->mapped = TRUE;
 515 }
 516
 517 void prompt_hide(ObPrompt *self)
 518 {
 519     XUnmapWindow(obt_display, self->super.window);
 520     self->mapped = FALSE;
 521 }
 522
 523 gboolean prompt_key_event(ObPrompt *self, XEvent *e)
 524 {
 525     gboolean shift;
 526     guint shift_mask, mods;
 527     KeySym sym;
 528
 529     if (e->type != KeyPress) return FALSE;
 530
 531     shift_mask = obt_keyboard_modkey_to_modmask(OBT_KEYBOARD_MODKEY_SHIFT);
 532     mods = obt_keyboard_only_modmasks(e->xkey.state);
 533     shift = !!(mods & shift_mask);
 534
 535     /* only accept shift */
 536     if (mods != 0 && mods != shift_mask)
 537         return FALSE;
 538
 539     sym = obt_keyboard_keypress_to_keysym(e);
 540
 541     if (sym == XK_Escape)
 542         prompt_cancel(self);
 543     else if (sym == XK_Return || sym == XK_KP_Enter || sym == XK_space)
 544         prompt_run_callback(self, self->focus->result);
 545     else if (sym == XK_Tab || sym == XK_Left || sym == XK_Right) {
 546         gint i;
 547         gboolean left;
 548         ObPromptElement *oldfocus;
 549
 550         left = (sym == XK_Left) || ((sym == XK_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 = but->hover = 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->hover)
 598             prompt_run_callback(self, but->result);
 599         but->pressed = FALSE;
 600     }
 601     else if (e->type == MotionNotify) {
 602         if (but->pressed) {
 603             gboolean hover;
 604
 605             hover = (e->xmotion.x >= 0 && e->xmotion.y >= 0 &&
 606                      e->xmotion.x < but->width && e->xmotion.y < but->height);
 607
 608             if (hover != but->hover) {
 609                 but->hover = hover;
 610                 render_button(self, but);
 611             }
 612         }
 613     }
 614     return TRUE;
 615 }
 616
 617 void prompt_cancel(ObPrompt *self)
 618 {
 619     prompt_run_callback(self, self->cancel_result);
 620 }
 621
 622 static gboolean prompt_show_message_cb(ObPrompt *p, int res, gpointer data)
 623 {
 624     return TRUE; /* call the cleanup func */
 625 }
 626
 627 static void prompt_show_message_cleanup(ObPrompt *p, gpointer data)
 628 {
 629     prompt_unref(p);
 630 }
 631
 632 ObPrompt* prompt_show_message(const gchar *msg, const gchar *title,
 633                               const gchar *answer)
 634 {
 635     ObPrompt *p;
 636     ObPromptAnswer ans[] = {
 637         { answer, 0 }
 638     };
 639
 640     p = prompt_new(msg, title, ans, 1, 0, 0,
 641                    prompt_show_message_cb, prompt_show_message_cleanup, NULL);
 642     prompt_show(p, NULL, FALSE);
 643     return p;
 644 }
 645
 646 static void prompt_run_callback(ObPrompt *self, gint result)
 647 {
 648     prompt_ref(self);
 649     if (self->func) {
 650         gboolean clean = self->func(self, self->focus->result, self->data);
 651         if (clean && self->cleanup)
 652             self->cleanup(self, self->data);
 653     }
 654     prompt_hide(self);
 655     prompt_unref(self);
 656 }