WINGs/wpopupbutton.c

   1
   2 #include "WINGsP.h"
   3
   4 typedef struct W_PopUpButton {
   5         W_Class widgetClass;
   6         WMView *view;
   7
   8         void *clientData;
   9         WMAction *action;
  10
  11         char *caption;
  12
  13         WMArray *items;
  14
  15         short selectedItemIndex;
  16
  17         short highlightedItem;
  18
  19         WMView *menuView;       /* override redirect popup menu */
  20
  21         WMHandlerID timer;      /* for autoscroll */
  22
  23          /**/ int scrollStartY; /* for autoscroll */
  24
  25         struct {
  26                 unsigned int pullsDown:1;
  27
  28                 unsigned int configured:1;
  29
  30                 unsigned int insideMenu:1;
  31
  32                 unsigned int enabled:1;
  33
  34         } flags;
  35 } PopUpButton;
  36
  37 #define MENU_BLINK_DELAY        60000
  38 #define MENU_BLINK_COUNT        2
  39
  40 #define SCROLL_DELAY            10
  41
  42 #define DEFAULT_WIDTH   60
  43 #define DEFAULT_HEIGHT  20
  44 #define DEFAULT_CAPTION ""
  45
  46 static void destroyPopUpButton(PopUpButton * bPtr);
  47 static void paintPopUpButton(PopUpButton * bPtr);
  48
  49 static void handleEvents(XEvent * event, void *data);
  50 static void handleActionEvents(XEvent * event, void *data);
  51
  52 static void resizeMenu(PopUpButton * bPtr);
  53
  54 WMPopUpButton *WMCreatePopUpButton(WMWidget * parent)
  55 {
  56         PopUpButton *bPtr;
  57         W_Screen *scr = W_VIEW(parent)->screen;
  58
  59         bPtr = wmalloc(sizeof(PopUpButton));
  60         memset(bPtr, 0, sizeof(PopUpButton));
  61
  62         bPtr->widgetClass = WC_PopUpButton;
  63
  64         bPtr->view = W_CreateView(W_VIEW(parent));
  65         if (!bPtr->view) {
  66                 wfree(bPtr);
  67                 return NULL;
  68         }
  69         bPtr->view->self = bPtr;
  70
  71         WMCreateEventHandler(bPtr->view, ExposureMask | StructureNotifyMask
  72                              | ClientMessageMask, handleEvents, bPtr);
  73
  74         W_ResizeView(bPtr->view, DEFAULT_WIDTH, DEFAULT_HEIGHT);
  75         bPtr->caption = wstrdup(DEFAULT_CAPTION);
  76
  77         WMCreateEventHandler(bPtr->view, ButtonPressMask | ButtonReleaseMask, handleActionEvents, bPtr);
  78
  79         bPtr->flags.enabled = 1;
  80
  81         bPtr->items = WMCreateArrayWithDestructor(4, (WMFreeDataProc *) WMDestroyMenuItem);
  82
  83         bPtr->selectedItemIndex = -1;
  84
  85         bPtr->menuView = W_CreateUnmanagedTopView(scr);
  86
  87         W_ResizeView(bPtr->menuView, bPtr->view->size.width, 1);
  88
  89         WMCreateEventHandler(bPtr->menuView, ButtonPressMask | ButtonReleaseMask
  90                              | EnterWindowMask | LeaveWindowMask | ButtonMotionMask
  91                              | ExposureMask, handleActionEvents, bPtr);
  92
  93         return bPtr;
  94 }
  95
  96 void WMSetPopUpButtonAction(WMPopUpButton * bPtr, WMAction * action, void *clientData)
  97 {
  98         CHECK_CLASS(bPtr, WC_PopUpButton);
  99
 100         bPtr->action = action;
 101
 102         bPtr->clientData = clientData;
 103 }
 104
 105 WMMenuItem *WMAddPopUpButtonItem(WMPopUpButton * bPtr, char *title)
 106 {
 107         WMMenuItem *item;
 108
 109         CHECK_CLASS(bPtr, WC_PopUpButton);
 110
 111         item = WMCreateMenuItem();
 112         WMSetMenuItemTitle(item, title);
 113
 114         WMAddToArray(bPtr->items, item);
 115
 116         if (bPtr->menuView && bPtr->menuView->flags.realized)
 117                 resizeMenu(bPtr);
 118
 119         return item;
 120 }
 121
 122 WMMenuItem *WMInsertPopUpButtonItem(WMPopUpButton * bPtr, int index, char *title)
 123 {
 124         WMMenuItem *item;
 125
 126         CHECK_CLASS(bPtr, WC_PopUpButton);
 127
 128         item = WMCreateMenuItem();
 129         WMSetMenuItemTitle(item, title);
 130
 131         WMInsertInArray(bPtr->items, index, item);
 132
 133         /* if there is an selected item, update it's index to match the new
 134          * position */
 135         if (index < bPtr->selectedItemIndex)
 136                 bPtr->selectedItemIndex++;
 137
 138         if (bPtr->menuView && bPtr->menuView->flags.realized)
 139                 resizeMenu(bPtr);
 140
 141         return item;
 142 }
 143
 144 void WMRemovePopUpButtonItem(WMPopUpButton * bPtr, int index)
 145 {
 146         CHECK_CLASS(bPtr, WC_PopUpButton);
 147
 148         wassertr(index >= 0 && index < WMGetArrayItemCount(bPtr->items));
 149
 150         WMDeleteFromArray(bPtr->items, index);
 151
 152         if (bPtr->selectedItemIndex >= 0 && !bPtr->flags.pullsDown) {
 153                 if (index < bPtr->selectedItemIndex)
 154                         bPtr->selectedItemIndex--;
 155                 else if (index == bPtr->selectedItemIndex) {
 156                         /* reselect first item if the removed item is the
 157                          * selected one */
 158                         bPtr->selectedItemIndex = 0;
 159                         if (bPtr->view->flags.mapped)
 160                                 paintPopUpButton(bPtr);
 161                 }
 162         }
 163
 164         if (bPtr->menuView && bPtr->menuView->flags.realized)
 165                 resizeMenu(bPtr);
 166 }
 167
 168 void WMSetPopUpButtonEnabled(WMPopUpButton * bPtr, Bool flag)
 169 {
 170         bPtr->flags.enabled = ((flag == 0) ? 0 : 1);
 171         if (bPtr->view->flags.mapped)
 172                 paintPopUpButton(bPtr);
 173 }
 174
 175 Bool WMGetPopUpButtonEnabled(WMPopUpButton * bPtr)
 176 {
 177         return bPtr->flags.enabled;
 178 }
 179
 180 void WMSetPopUpButtonSelectedItem(WMPopUpButton * bPtr, int index)
 181 {
 182
 183         wassertr(index < WMGetArrayItemCount(bPtr->items));
 184
 185         /* if (index >= WMGetArrayCount(bPtr->items))
 186            index = -1; */
 187
 188         bPtr->selectedItemIndex = index;
 189
 190         if (bPtr->view->flags.mapped)
 191                 paintPopUpButton(bPtr);
 192 }
 193
 194 int WMGetPopUpButtonSelectedItem(WMPopUpButton * bPtr)
 195 {
 196         if (!bPtr->flags.pullsDown && bPtr->selectedItemIndex < 0)
 197                 return -1;
 198         else
 199                 return bPtr->selectedItemIndex;
 200 }
 201
 202 void WMSetPopUpButtonText(WMPopUpButton * bPtr, char *text)
 203 {
 204         if (bPtr->caption)
 205                 wfree(bPtr->caption);
 206         if (text)
 207                 bPtr->caption = wstrdup(text);
 208         else
 209                 bPtr->caption = NULL;
 210         if (bPtr->view->flags.realized) {
 211                 if (bPtr->flags.pullsDown || bPtr->selectedItemIndex < 0) {
 212                         paintPopUpButton(bPtr);
 213                 }
 214         }
 215 }
 216
 217 void WMSetPopUpButtonItemEnabled(WMPopUpButton * bPtr, int index, Bool flag)
 218 {
 219         WMSetMenuItemEnabled(WMGetFromArray(bPtr->items, index), (flag ? 1 : 0));
 220 }
 221
 222 Bool WMGetPopUpButtonItemEnabled(WMPopUpButton * bPtr, int index)
 223 {
 224         return WMGetMenuItemEnabled(WMGetFromArray(bPtr->items, index));
 225 }
 226
 227 void WMSetPopUpButtonPullsDown(WMPopUpButton * bPtr, Bool flag)
 228 {
 229         bPtr->flags.pullsDown = ((flag == 0) ? 0 : 1);
 230         if (flag) {
 231                 bPtr->selectedItemIndex = -1;
 232         }
 233
 234         if (bPtr->view->flags.mapped)
 235                 paintPopUpButton(bPtr);
 236 }
 237
 238 int WMGetPopUpButtonNumberOfItems(WMPopUpButton * bPtr)
 239 {
 240         return WMGetArrayItemCount(bPtr->items);
 241 }
 242
 243 char *WMGetPopUpButtonItem(WMPopUpButton * bPtr, int index)
 244 {
 245         if (index >= WMGetArrayItemCount(bPtr->items) || index < 0)
 246                 return NULL;
 247
 248         return WMGetMenuItemTitle(WMGetFromArray(bPtr->items, index));
 249 }
 250
 251 WMMenuItem *WMGetPopUpButtonMenuItem(WMPopUpButton * bPtr, int index)
 252 {
 253         return WMGetFromArray(bPtr->items, index);
 254 }
 255
 256 static void paintPopUpButton(PopUpButton * bPtr)
 257 {
 258         W_Screen *scr = bPtr->view->screen;
 259         char *caption;
 260         Pixmap pixmap;
 261
 262         if (bPtr->flags.pullsDown) {
 263                 caption = bPtr->caption;
 264         } else {
 265                 if (bPtr->selectedItemIndex < 0) {
 266                         /* if no item selected, show the caption */
 267                         caption = bPtr->caption;
 268                 } else {
 269                         caption = WMGetPopUpButtonItem(bPtr, bPtr->selectedItemIndex);
 270                 }
 271         }
 272
 273         pixmap = XCreatePixmap(scr->display, bPtr->view->window,
 274                                bPtr->view->size.width, bPtr->view->size.height, scr->depth);
 275         XFillRectangle(scr->display, pixmap, WMColorGC(scr->gray), 0, 0,
 276                        bPtr->view->size.width, bPtr->view->size.height);
 277
 278         W_DrawRelief(scr, pixmap, 0, 0, bPtr->view->size.width, bPtr->view->size.height, WRRaised);
 279
 280         if (caption) {
 281                 W_PaintText(bPtr->view, pixmap, scr->normalFont, 6,
 282                             (bPtr->view->size.height - WMFontHeight(scr->normalFont)) / 2,
 283                             bPtr->view->size.width, WALeft,
 284                             bPtr->flags.enabled ? scr->black : scr->darkGray, False, caption, strlen(caption));
 285         }
 286
 287         if (bPtr->flags.pullsDown) {
 288                 XCopyArea(scr->display, scr->pullDownIndicator->pixmap,
 289                           pixmap, scr->copyGC, 0, 0, scr->pullDownIndicator->width,
 290                           scr->pullDownIndicator->height,
 291                           bPtr->view->size.width - scr->pullDownIndicator->width - 4,
 292                           (bPtr->view->size.height - scr->pullDownIndicator->height) / 2);
 293         } else {
 294                 int x, y;
 295
 296                 x = bPtr->view->size.width - scr->popUpIndicator->width - 4;
 297                 y = (bPtr->view->size.height - scr->popUpIndicator->height) / 2;
 298
 299                 XSetClipOrigin(scr->display, scr->clipGC, x, y);
 300                 XSetClipMask(scr->display, scr->clipGC, scr->popUpIndicator->mask);
 301                 XCopyArea(scr->display, scr->popUpIndicator->pixmap, pixmap,
 302                           scr->clipGC, 0, 0, scr->popUpIndicator->width, scr->popUpIndicator->height, x, y);
 303         }
 304
 305         XCopyArea(scr->display, pixmap, bPtr->view->window, scr->copyGC, 0, 0,
 306                   bPtr->view->size.width, bPtr->view->size.height, 0, 0);
 307
 308         XFreePixmap(scr->display, pixmap);
 309 }
 310
 311 static void handleEvents(XEvent * event, void *data)
 312 {
 313         PopUpButton *bPtr = (PopUpButton *) data;
 314
 315         CHECK_CLASS(data, WC_PopUpButton);
 316
 317         switch (event->type) {
 318         case Expose:
 319                 if (event->xexpose.count != 0)
 320                         break;
 321                 paintPopUpButton(bPtr);
 322                 break;
 323
 324         case DestroyNotify:
 325                 destroyPopUpButton(bPtr);
 326                 break;
 327         }
 328 }
 329
 330 static void paintMenuEntry(PopUpButton * bPtr, int index, int highlight)
 331 {
 332         W_Screen *scr = bPtr->view->screen;
 333         int yo;
 334         int width, height, itemHeight, itemCount;
 335         char *title;
 336
 337         itemCount = WMGetArrayItemCount(bPtr->items);
 338         if (index < 0 || index >= itemCount)
 339                 return;
 340
 341         itemHeight = bPtr->view->size.height;
 342         width = bPtr->view->size.width;
 343         height = itemHeight * itemCount;
 344         yo = (itemHeight - WMFontHeight(scr->normalFont)) / 2;
 345
 346         if (!highlight) {
 347                 XClearArea(scr->display, bPtr->menuView->window, 0, index * itemHeight, width, itemHeight, False);
 348                 return;
 349         } else if (index < 0 && bPtr->flags.pullsDown) {
 350                 return;
 351         }
 352
 353         XFillRectangle(scr->display, bPtr->menuView->window, WMColorGC(scr->white),
 354                        1, index * itemHeight + 1, width - 3, itemHeight - 3);
 355
 356         title = WMGetPopUpButtonItem(bPtr, index);
 357
 358         W_DrawRelief(scr, bPtr->menuView->window, 0, index * itemHeight, width, itemHeight, WRRaised);
 359
 360         W_PaintText(bPtr->menuView, bPtr->menuView->window, scr->normalFont, 6,
 361                     index * itemHeight + yo, width, WALeft, scr->black, False, title, strlen(title));
 362
 363         if (!bPtr->flags.pullsDown && index == bPtr->selectedItemIndex) {
 364                 XCopyArea(scr->display, scr->popUpIndicator->pixmap,
 365                           bPtr->menuView->window, scr->copyGC, 0, 0,
 366                           scr->popUpIndicator->width, scr->popUpIndicator->height,
 367                           width - scr->popUpIndicator->width - 4,
 368                           index * itemHeight + (itemHeight - scr->popUpIndicator->height) / 2);
 369         }
 370 }
 371
 372 Pixmap makeMenuPixmap(PopUpButton * bPtr)
 373 {
 374         Pixmap pixmap;
 375         W_Screen *scr = bPtr->view->screen;
 376         WMMenuItem *item;
 377         WMArrayIterator iter;
 378         int yo, i;
 379         int width, height, itemHeight;
 380
 381         itemHeight = bPtr->view->size.height;
 382         width = bPtr->view->size.width;
 383         height = itemHeight * WMGetArrayItemCount(bPtr->items);
 384         yo = (itemHeight - WMFontHeight(scr->normalFont)) / 2;
 385
 386         pixmap = XCreatePixmap(scr->display, bPtr->view->window, width, height, scr->depth);
 387
 388         XFillRectangle(scr->display, pixmap, WMColorGC(scr->gray), 0, 0, width, height);
 389
 390         i = 0;
 391         WM_ITERATE_ARRAY(bPtr->items, item, iter) {
 392                 WMColor *color;
 393                 char *text;
 394
 395                 text = WMGetMenuItemTitle(item);
 396
 397                 W_DrawRelief(scr, pixmap, 0, i * itemHeight, width, itemHeight, WRRaised);
 398
 399                 if (!WMGetMenuItemEnabled(item))
 400                         color = scr->darkGray;
 401                 else
 402                         color = scr->black;
 403
 404                 W_PaintText(bPtr->menuView, pixmap, scr->normalFont, 6,
 405                             i * itemHeight + yo, width, WALeft, color, False, text, strlen(text));
 406
 407                 if (!bPtr->flags.pullsDown && i == bPtr->selectedItemIndex) {
 408                         XCopyArea(scr->display, scr->popUpIndicator->pixmap, pixmap,
 409                                   scr->copyGC, 0, 0, scr->popUpIndicator->width,
 410                                   scr->popUpIndicator->height,
 411                                   width - scr->popUpIndicator->width - 4,
 412                                   i * itemHeight + (itemHeight - scr->popUpIndicator->height) / 2);
 413                 }
 414
 415                 i++;
 416         }
 417
 418         return pixmap;
 419 }
 420
 421 static void resizeMenu(PopUpButton * bPtr)
 422 {
 423         int height;
 424
 425         height = WMGetArrayItemCount(bPtr->items) * bPtr->view->size.height;
 426         if (height > 0)
 427                 W_ResizeView(bPtr->menuView, bPtr->view->size.width, height);
 428 }
 429
 430 static void popUpMenu(PopUpButton * bPtr)
 431 {
 432         W_Screen *scr = bPtr->view->screen;
 433         Window dummyW;
 434         int x, y;
 435
 436         if (!bPtr->flags.enabled)
 437                 return;
 438
 439         if (!bPtr->menuView->flags.realized) {
 440                 W_RealizeView(bPtr->menuView);
 441                 resizeMenu(bPtr);
 442         }
 443
 444         if (WMGetArrayItemCount(bPtr->items) < 1)
 445                 return;
 446
 447         XTranslateCoordinates(scr->display, bPtr->view->window, scr->rootWin, 0, 0, &x, &y, &dummyW);
 448
 449         if (bPtr->flags.pullsDown) {
 450                 y += bPtr->view->size.height;
 451         } else {
 452                 y -= bPtr->view->size.height * bPtr->selectedItemIndex;
 453         }
 454         W_MoveView(bPtr->menuView, x, y);
 455
 456         XSetWindowBackgroundPixmap(scr->display, bPtr->menuView->window, makeMenuPixmap(bPtr));
 457         XClearWindow(scr->display, bPtr->menuView->window);
 458
 459         if (W_VIEW_WIDTH(bPtr->menuView) != W_VIEW_WIDTH(bPtr->view))
 460                 resizeMenu(bPtr);
 461
 462         W_MapView(bPtr->menuView);
 463
 464         bPtr->highlightedItem = 0;
 465         if (!bPtr->flags.pullsDown && bPtr->selectedItemIndex < 0)
 466                 paintMenuEntry(bPtr, bPtr->selectedItemIndex, True);
 467 }
 468
 469 static void popDownMenu(PopUpButton * bPtr)
 470 {
 471         W_UnmapView(bPtr->menuView);
 472 }
 473
 474 static void autoScroll(void *data)
 475 {
 476         PopUpButton *bPtr = (PopUpButton *) data;
 477         int scrHeight = WMWidgetScreen(bPtr)->rootView->size.height;
 478         int repeat = 0;
 479         int dy = 0;
 480
 481         if (bPtr->scrollStartY >= scrHeight - 1
 482             && bPtr->menuView->pos.y + bPtr->menuView->size.height >= scrHeight - 1) {
 483                 repeat = 1;
 484
 485                 if (bPtr->menuView->pos.y + bPtr->menuView->size.height - 5 <= scrHeight - 1) {
 486                         dy = scrHeight - 1 - (bPtr->menuView->pos.y + bPtr->menuView->size.height);
 487                 } else
 488                         dy = -5;
 489
 490         } else if (bPtr->scrollStartY <= 1 && bPtr->menuView->pos.y < 1) {
 491                 repeat = 1;
 492
 493                 if (bPtr->menuView->pos.y + 5 > 1)
 494                         dy = 1 - bPtr->menuView->pos.y;
 495                 else
 496                         dy = 5;
 497         }
 498
 499         if (repeat) {
 500                 int oldItem;
 501
 502                 W_MoveView(bPtr->menuView, bPtr->menuView->pos.x, bPtr->menuView->pos.y + dy);
 503
 504                 oldItem = bPtr->highlightedItem;
 505                 bPtr->highlightedItem = (bPtr->scrollStartY - bPtr->menuView->pos.y)
 506                     / bPtr->view->size.height;
 507
 508                 if (oldItem != bPtr->highlightedItem) {
 509                         WMMenuItem *item;
 510
 511                         paintMenuEntry(bPtr, oldItem, False);
 512
 513                         if (bPtr->highlightedItem >= 0 && bPtr->highlightedItem < WMGetArrayItemCount(bPtr->items)) {
 514                                 item = WMGetPopUpButtonMenuItem(bPtr, bPtr->highlightedItem);
 515                                 paintMenuEntry(bPtr, bPtr->highlightedItem, WMGetMenuItemEnabled(item));
 516                         } else {
 517                                 bPtr->highlightedItem = -1;
 518                         }
 519                 }
 520
 521                 bPtr->timer = WMAddTimerHandler(SCROLL_DELAY, autoScroll, bPtr);
 522         } else {
 523                 bPtr->timer = NULL;
 524         }
 525 }
 526
 527 static void wheelScrollUp(PopUpButton * bPtr)
 528 {
 529         int testIndex = bPtr->selectedItemIndex - 1;
 530
 531         while (testIndex >= 0 && !WMGetPopUpButtonItemEnabled(bPtr, testIndex))
 532                 testIndex--;
 533         if (testIndex != -1) {
 534                 WMSetPopUpButtonSelectedItem(bPtr, testIndex);
 535                 if (bPtr->action)
 536                         (*bPtr->action) (bPtr, bPtr->clientData);
 537         }
 538 }
 539
 540 static void wheelScrollDown(PopUpButton * bPtr)
 541 {
 542         int itemCount = WMGetArrayItemCount(bPtr->items);
 543         int testIndex = bPtr->selectedItemIndex + 1;
 544
 545         while (testIndex < itemCount && !WMGetPopUpButtonItemEnabled(bPtr, testIndex))
 546                 testIndex++;
 547         if (testIndex != itemCount) {
 548                 WMSetPopUpButtonSelectedItem(bPtr, testIndex);
 549                 if (bPtr->action)
 550                         (*bPtr->action) (bPtr, bPtr->clientData);
 551         }
 552 }
 553
 554 static void handleActionEvents(XEvent * event, void *data)
 555 {
 556         PopUpButton *bPtr = (PopUpButton *) data;
 557         int oldItem;
 558         int scrHeight = WMWidgetScreen(bPtr)->rootView->size.height;
 559
 560         CHECK_CLASS(data, WC_PopUpButton);
 561
 562         if (WMGetArrayItemCount(bPtr->items) < 1)
 563                 return;
 564
 565         switch (event->type) {
 566                 /* called for menuView */
 567         case Expose:
 568                 paintMenuEntry(bPtr, bPtr->highlightedItem, True);
 569                 break;
 570
 571         case LeaveNotify:
 572                 bPtr->flags.insideMenu = 0;
 573                 if (bPtr->menuView->flags.mapped)
 574                         paintMenuEntry(bPtr, bPtr->highlightedItem, False);
 575                 bPtr->highlightedItem = -1;
 576                 break;
 577
 578         case EnterNotify:
 579                 bPtr->flags.insideMenu = 1;
 580                 break;
 581
 582         case MotionNotify:
 583                 if (bPtr->flags.insideMenu) {
 584                         oldItem = bPtr->highlightedItem;
 585                         bPtr->highlightedItem = event->xmotion.y / bPtr->view->size.height;
 586                         if (oldItem != bPtr->highlightedItem) {
 587                                 WMMenuItem *item;
 588
 589                                 paintMenuEntry(bPtr, oldItem, False);
 590                                 if (bPtr->highlightedItem >= 0 &&
 591                                     bPtr->highlightedItem < WMGetArrayItemCount(bPtr->items)) {
 592                                         item = WMGetPopUpButtonMenuItem(bPtr, bPtr->highlightedItem);
 593                                         paintMenuEntry(bPtr, bPtr->highlightedItem, WMGetMenuItemEnabled(item));
 594                                 } else {
 595                                         bPtr->highlightedItem = -1;
 596                                 }
 597
 598                         }
 599
 600                         if (event->xmotion.y_root >= scrHeight - 1 || event->xmotion.y_root <= 1) {
 601                                 bPtr->scrollStartY = event->xmotion.y_root;
 602                                 if (!bPtr->timer)
 603                                         autoScroll(bPtr);
 604                         } else if (bPtr->timer) {
 605                                 WMDeleteTimerHandler(bPtr->timer);
 606                                 bPtr->timer = NULL;
 607                         }
 608                 }
 609                 break;
 610
 611                 /* called for bPtr->view */
 612         case ButtonPress:
 613                 if (!bPtr->flags.enabled)
 614                         break;
 615
 616                 if (event->xbutton.button == WINGsConfiguration.mouseWheelUp) {
 617                         if (!bPtr->menuView->flags.mapped && !bPtr->flags.pullsDown) {
 618                                 wheelScrollUp(bPtr);
 619                         }
 620                         break;
 621                 } else if (event->xbutton.button == WINGsConfiguration.mouseWheelDown) {
 622                         if (!bPtr->menuView->flags.mapped && !bPtr->flags.pullsDown) {
 623                                 wheelScrollDown(bPtr);
 624                         }
 625                         break;
 626                 }
 627                 popUpMenu(bPtr);
 628                 if (!bPtr->flags.pullsDown) {
 629                         bPtr->highlightedItem = bPtr->selectedItemIndex;
 630                         bPtr->flags.insideMenu = 1;
 631                 } else {
 632                         bPtr->highlightedItem = -1;
 633                         bPtr->flags.insideMenu = 0;
 634                 }
 635                 XGrabPointer(bPtr->view->screen->display, bPtr->menuView->window,
 636                              False, ButtonReleaseMask | ButtonMotionMask | EnterWindowMask
 637                              | LeaveWindowMask, GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
 638                 break;
 639
 640         case ButtonRelease:
 641                 if (event->xbutton.button == WINGsConfiguration.mouseWheelUp ||
 642                     event->xbutton.button == WINGsConfiguration.mouseWheelDown) {
 643                         break;
 644                 }
 645                 XUngrabPointer(bPtr->view->screen->display, event->xbutton.time);
 646                 if (!bPtr->flags.pullsDown)
 647                         popDownMenu(bPtr);
 648
 649                 if (bPtr->timer) {
 650                         WMDeleteTimerHandler(bPtr->timer);
 651                         bPtr->timer = NULL;
 652                 }
 653
 654                 if (bPtr->flags.insideMenu && bPtr->highlightedItem >= 0) {
 655                         WMMenuItem *item;
 656
 657                         item = WMGetPopUpButtonMenuItem(bPtr, bPtr->highlightedItem);
 658
 659                         if (WMGetMenuItemEnabled(item)) {
 660                                 int i;
 661                                 WMSetPopUpButtonSelectedItem(bPtr, bPtr->highlightedItem);
 662
 663                                 if (bPtr->flags.pullsDown) {
 664                                         for (i = 0; i < MENU_BLINK_COUNT; i++) {
 665                                                 paintMenuEntry(bPtr, bPtr->highlightedItem, False);
 666                                                 XSync(bPtr->view->screen->display, 0);
 667                                                 wusleep(MENU_BLINK_DELAY);
 668                                                 paintMenuEntry(bPtr, bPtr->highlightedItem, True);
 669                                                 XSync(bPtr->view->screen->display, 0);
 670                                                 wusleep(MENU_BLINK_DELAY);
 671                                         }
 672                                 }
 673                                 paintMenuEntry(bPtr, bPtr->highlightedItem, False);
 674                                 popDownMenu(bPtr);
 675                                 if (bPtr->action)
 676                                         (*bPtr->action) (bPtr, bPtr->clientData);
 677                         }
 678                 }
 679                 if (bPtr->menuView->flags.mapped)
 680                         popDownMenu(bPtr);
 681                 break;
 682         }
 683 }
 684
 685 static void destroyPopUpButton(PopUpButton * bPtr)
 686 {
 687         if (bPtr->timer) {
 688                 WMDeleteTimerHandler(bPtr->timer);
 689         }
 690
 691         WMFreeArray(bPtr->items);
 692
 693         if (bPtr->caption)
 694                 wfree(bPtr->caption);
 695
 696         /* have to destroy explicitly because the popup is a toplevel */
 697         W_DestroyView(bPtr->menuView);
 698
 699         wfree(bPtr);
 700 }