WINGs/wpopupbutton.c

   1
   2
   3
   4
   5 #include "WINGsP.h"
   6
   7
   8 typedef struct W_PopUpButton {
   9     W_Class widgetClass;
  10     WMView *view;
  11
  12     void *clientData;
  13     WMAction *action;
  14
  15     char *caption;
  16
  17     WMBag *items;
  18
  19     short selectedItemIndex;
  20
  21     short highlightedItem;
  22
  23     WMView *menuView;                  /* override redirect popup menu */
  24
  25     WMHandlerID timer;                 /* for autoscroll */
  26
  27     /**/
  28     int scrollStartY;                  /* for autoscroll */
  29
  30     struct {
  31         unsigned int pullsDown:1;
  32
  33         unsigned int configured:1;
  34
  35         unsigned int insideMenu:1;
  36
  37         unsigned int enabled:1;
  38
  39     } flags;
  40 } PopUpButton;
  41
  42
  43 #define MENU_BLINK_DELAY        60000
  44 #define MENU_BLINK_COUNT        2
  45
  46 #define SCROLL_DELAY            10
  47
  48
  49 #define DEFAULT_WIDTH   60
  50 #define DEFAULT_HEIGHT  20
  51 #define DEFAULT_CAPTION ""
  52
  53
  54 static void destroyPopUpButton(PopUpButton *bPtr);
  55 static void paintPopUpButton(PopUpButton *bPtr);
  56
  57 static void handleEvents(XEvent *event, void *data);
  58 static void handleActionEvents(XEvent *event, void *data);
  59
  60 static void resizeMenu(PopUpButton *bPtr);
  61
  62
  63 WMPopUpButton*
  64 WMCreatePopUpButton(WMWidget *parent)
  65 {
  66     PopUpButton *bPtr;
  67     W_Screen *scr = W_VIEW(parent)->screen;
  68
  69
  70     bPtr = wmalloc(sizeof(PopUpButton));
  71     memset(bPtr, 0, sizeof(PopUpButton));
  72
  73     bPtr->widgetClass = WC_PopUpButton;
  74
  75     bPtr->view = W_CreateView(W_VIEW(parent));
  76     if (!bPtr->view) {
  77         wfree(bPtr);
  78         return NULL;
  79     }
  80     bPtr->view->self = bPtr;
  81
  82     WMCreateEventHandler(bPtr->view, ExposureMask|StructureNotifyMask
  83                          |ClientMessageMask, handleEvents, bPtr);
  84
  85
  86     W_ResizeView(bPtr->view, DEFAULT_WIDTH, DEFAULT_HEIGHT);
  87     bPtr->caption = wstrdup(DEFAULT_CAPTION);
  88
  89     WMCreateEventHandler(bPtr->view, ButtonPressMask|ButtonReleaseMask,
  90                          handleActionEvents, bPtr);
  91
  92     bPtr->flags.enabled = 1;
  93
  94     bPtr->items = WMCreateBag(4);
  95
  96     bPtr->menuView = W_CreateTopView(scr);
  97     bPtr->menuView->attribs.override_redirect = True;
  98     bPtr->menuView->attribFlags |= CWOverrideRedirect;
  99
 100     W_ResizeView(bPtr->menuView, bPtr->view->size.width, 1);
 101
 102     WMCreateEventHandler(bPtr->menuView, ButtonPressMask|ButtonReleaseMask
 103                          |EnterWindowMask|LeaveWindowMask|ButtonMotionMask
 104                          |ExposureMask, handleActionEvents, bPtr);
 105
 106     return bPtr;
 107 }
 108
 109
 110 void
 111 WMSetPopUpButtonAction(WMPopUpButton *bPtr, WMAction *action, void *clientData)
 112 {
 113     CHECK_CLASS(bPtr, WC_PopUpButton);
 114
 115     bPtr->action = action;
 116
 117     bPtr->clientData = clientData;
 118 }
 119
 120
 121 WMMenuItem*
 122 WMAddPopUpButtonItem(WMPopUpButton *bPtr, char *title)
 123 {
 124     WMMenuItem *item;
 125
 126     CHECK_CLASS(bPtr, WC_PopUpButton);
 127
 128     item = WMCreateMenuItem();
 129     WMSetMenuItemTitle(item, title);
 130
 131     WMPutInBag(bPtr->items, item);
 132
 133     if (bPtr->menuView && bPtr->menuView->flags.realized)
 134         resizeMenu(bPtr);
 135
 136     return item;
 137 }
 138
 139
 140 WMMenuItem*
 141 WMInsertPopUpButtonItem(WMPopUpButton *bPtr, int index, char *title)
 142 {
 143     WMMenuItem *item;
 144
 145     CHECK_CLASS(bPtr, WC_PopUpButton);
 146
 147     item = WMCreateMenuItem();
 148     WMSetMenuItemTitle(item, title);
 149
 150     WMInsertInBag(bPtr->items, index, item);
 151
 152     /* if there is an selected item, update it's index to match the new
 153      * position */
 154     if (index < bPtr->selectedItemIndex)
 155         bPtr->selectedItemIndex++;
 156
 157     if (bPtr->menuView && bPtr->menuView->flags.realized)
 158         resizeMenu(bPtr);
 159
 160     return item;
 161 }
 162
 163
 164 void
 165 WMRemovePopUpButtonItem(WMPopUpButton *bPtr, int index)
 166 {
 167     WMMenuItem *item;
 168
 169     CHECK_CLASS(bPtr, WC_PopUpButton);
 170
 171     wassertr(index >= 0 && index < WMGetBagItemCount(bPtr->items));
 172
 173
 174     item = WMGetFromBag(bPtr->items, index);
 175     WMDeleteFromBag(bPtr->items, index);
 176
 177     WMDestroyMenuItem(item);
 178
 179     if (bPtr->selectedItemIndex >= 0 && !bPtr->flags.pullsDown) {
 180         if (index < bPtr->selectedItemIndex)
 181             bPtr->selectedItemIndex--;
 182         else if (index == bPtr->selectedItemIndex) {
 183             /* reselect first item if the removed item is the
 184              * selected one */
 185             bPtr->selectedItemIndex = 0;
 186             if (bPtr->view->flags.mapped)
 187                 paintPopUpButton(bPtr);
 188         }
 189     }
 190
 191     if (bPtr->menuView && bPtr->menuView->flags.realized)
 192         resizeMenu(bPtr);
 193 }
 194
 195
 196 void
 197 WMSetPopUpButtonEnabled(WMPopUpButton *bPtr, Bool flag)
 198 {
 199     bPtr->flags.enabled = flag;
 200     if (bPtr->view->flags.mapped)
 201         paintPopUpButton(bPtr);
 202 }
 203
 204
 205 Bool
 206 WMGetPopUpButtonEnabled(WMPopUpButton *bPtr)
 207 {
 208     return bPtr->flags.enabled;
 209 }
 210
 211
 212 void
 213 WMSetPopUpButtonSelectedItem(WMPopUpButton *bPtr, int index)
 214 {
 215
 216     wassertr(index < WMGetBagItemCount(bPtr->items));
 217
 218     /* if (index >= WMGetBagCount(bPtr->items))
 219         index = -1;*/
 220
 221     bPtr->selectedItemIndex = index;
 222
 223     if (bPtr->view->flags.mapped)
 224         paintPopUpButton(bPtr);
 225 }
 226
 227 int
 228 WMGetPopUpButtonSelectedItem(WMPopUpButton *bPtr)
 229 {
 230     if (!bPtr->flags.pullsDown && bPtr->selectedItemIndex < 0)
 231         return -1;
 232     else
 233         return bPtr->selectedItemIndex;
 234 }
 235
 236
 237 void
 238 WMSetPopUpButtonText(WMPopUpButton *bPtr, char *text)
 239 {
 240     if (bPtr->caption)
 241         wfree(bPtr->caption);
 242     if (text)
 243         bPtr->caption = wstrdup(text);
 244     else
 245         bPtr->caption = NULL;
 246     if (bPtr->view->flags.realized) {
 247         if (bPtr->flags.pullsDown || bPtr->selectedItemIndex < 0) {
 248             paintPopUpButton(bPtr);
 249         }
 250     }
 251 }
 252
 253
 254
 255 void
 256 WMSetPopUpButtonItemEnabled(WMPopUpButton *bPtr, int index, Bool flag)
 257 {
 258     WMMenuItem *item;
 259
 260     item = WMGetFromBag(bPtr->items, index);
 261     wassertr(item != NULL);
 262
 263     WMSetMenuItemEnabled(item, flag);
 264 }
 265
 266
 267 Bool
 268 WMGetPopUpButtonItemEnabled(WMPopUpButton *bPtr, int index)
 269 {
 270     WMMenuItem *item;
 271
 272     item = WMGetFromBag(bPtr->items, index);
 273     wassertrv(item != NULL, False);
 274
 275     return WMGetMenuItemEnabled(item);
 276 }
 277
 278
 279 void
 280 WMSetPopUpButtonPullsDown(WMPopUpButton *bPtr, Bool flag)
 281 {
 282     bPtr->flags.pullsDown = flag;
 283     if (flag) {
 284         bPtr->selectedItemIndex = -1;
 285     }
 286
 287     if (bPtr->view->flags.mapped)
 288         paintPopUpButton(bPtr);
 289 }
 290
 291
 292 int
 293 WMGetPopUpButtonNumberOfItems(WMPopUpButton *bPtr)
 294 {
 295     return WMGetBagItemCount(bPtr->items);
 296 }
 297
 298
 299 char*
 300 WMGetPopUpButtonItem(WMPopUpButton *bPtr, int index)
 301 {
 302     WMMenuItem *item;
 303
 304     if (index >= WMGetBagItemCount(bPtr->items) || index < 0)
 305         return NULL;
 306
 307     item = WMGetFromBag(bPtr->items, index);
 308     if (!item)
 309         return NULL;
 310
 311     return WMGetMenuItemTitle(item);
 312 }
 313
 314
 315 WMMenuItem*
 316 WMGetPopUpButtonMenuItem(WMPopUpButton *bPtr, int index)
 317 {
 318     WMMenuItem *item;
 319
 320     item = WMGetFromBag(bPtr->items, index);
 321
 322     return item;
 323 }
 324
 325
 326
 327 static void
 328 paintPopUpButton(PopUpButton *bPtr)
 329 {
 330     W_Screen *scr = bPtr->view->screen;
 331     char *caption;
 332     Pixmap pixmap;
 333
 334
 335     if (bPtr->flags.pullsDown) {
 336         caption = bPtr->caption;
 337     } else {
 338         if (bPtr->selectedItemIndex < 0) {
 339             /* if no item selected, show the caption */
 340             caption = bPtr->caption;
 341         } else {
 342             caption = WMGetPopUpButtonItem(bPtr, bPtr->selectedItemIndex);
 343         }
 344     }
 345
 346     pixmap = XCreatePixmap(scr->display, bPtr->view->window,
 347                            bPtr->view->size.width, bPtr->view->size.height,
 348                            scr->depth);
 349     XFillRectangle(scr->display, pixmap, WMColorGC(scr->gray), 0, 0,
 350                    bPtr->view->size.width, bPtr->view->size.height);
 351
 352     W_DrawRelief(scr, pixmap, 0, 0, bPtr->view->size.width,
 353                  bPtr->view->size.height, WRRaised);
 354
 355     if (caption) {
 356         W_PaintText(bPtr->view, pixmap, scr->normalFont, 6,
 357                     (bPtr->view->size.height-WMFontHeight(scr->normalFont))/2,
 358                     bPtr->view->size.width, WALeft,
 359                     bPtr->flags.enabled ? WMColorGC(scr->black) : WMColorGC(scr->darkGray),
 360                     False, caption, strlen(caption));
 361     }
 362
 363     if (bPtr->flags.pullsDown) {
 364         XCopyArea(scr->display, scr->pullDownIndicator->pixmap,
 365                   pixmap, scr->copyGC, 0, 0, scr->pullDownIndicator->width,
 366                   scr->pullDownIndicator->height,
 367                   bPtr->view->size.width-scr->pullDownIndicator->width-4,
 368                   (bPtr->view->size.height-scr->pullDownIndicator->height)/2);
 369     } else {
 370         int x, y;
 371
 372         x = bPtr->view->size.width - scr->popUpIndicator->width - 4;
 373         y = (bPtr->view->size.height-scr->popUpIndicator->height)/2;
 374
 375         XSetClipOrigin(scr->display, scr->clipGC, x, y);
 376         XSetClipMask(scr->display, scr->clipGC, scr->popUpIndicator->mask);
 377         XCopyArea(scr->display, scr->popUpIndicator->pixmap, pixmap,
 378                   scr->clipGC, 0, 0, scr->popUpIndicator->width,
 379                   scr->popUpIndicator->height, x, y);
 380     }
 381
 382     XCopyArea(scr->display, pixmap, bPtr->view->window, scr->copyGC, 0, 0,
 383               bPtr->view->size.width, bPtr->view->size.height, 0, 0);
 384
 385     XFreePixmap(scr->display, pixmap);
 386 }
 387
 388
 389
 390 static void
 391 handleEvents(XEvent *event, void *data)
 392 {
 393     PopUpButton *bPtr = (PopUpButton*)data;
 394
 395     CHECK_CLASS(data, WC_PopUpButton);
 396
 397
 398     switch (event->type) {
 399      case Expose:
 400         if (event->xexpose.count!=0)
 401             break;
 402         paintPopUpButton(bPtr);
 403         break;
 404
 405      case DestroyNotify:
 406         destroyPopUpButton(bPtr);
 407         break;
 408     }
 409 }
 410
 411
 412
 413 static void
 414 paintMenuEntry(PopUpButton *bPtr, int index, int highlight)
 415 {
 416     W_Screen *scr = bPtr->view->screen;
 417     int yo;
 418     int width, height, itemHeight, itemCount;
 419     char *title;
 420
 421     itemCount = WMGetBagItemCount(bPtr->items);
 422     if (index < 0 || index >= itemCount)
 423         return;
 424
 425     itemHeight = bPtr->view->size.height;
 426     width = bPtr->view->size.width;
 427     height = itemHeight * itemCount;
 428     yo = (itemHeight - WMFontHeight(scr->normalFont))/2;
 429
 430     if (!highlight) {
 431         XClearArea(scr->display, bPtr->menuView->window, 0, index*itemHeight,
 432                    width, itemHeight, False);
 433         return;
 434     } else if (index < 0 && bPtr->flags.pullsDown) {
 435         return;
 436     }
 437
 438     XFillRectangle(scr->display, bPtr->menuView->window, WMColorGC(scr->white),
 439                    1, index*itemHeight+1, width-3, itemHeight-3);
 440
 441     title = WMGetPopUpButtonItem(bPtr, index);
 442
 443     W_DrawRelief(scr, bPtr->menuView->window, 0, index*itemHeight,
 444                  width, itemHeight, WRRaised);
 445
 446     W_PaintText(bPtr->menuView, bPtr->menuView->window, scr->normalFont,  6,
 447                 index*itemHeight + yo, width, WALeft, WMColorGC(scr->black),
 448                 False, title, strlen(title));
 449
 450     if (!bPtr->flags.pullsDown && index == bPtr->selectedItemIndex) {
 451         XCopyArea(scr->display, scr->popUpIndicator->pixmap,
 452                   bPtr->menuView->window, scr->copyGC, 0, 0,
 453                   scr->popUpIndicator->width, scr->popUpIndicator->height,
 454                   width-scr->popUpIndicator->width-4,
 455                   index*itemHeight+(itemHeight-scr->popUpIndicator->height)/2);
 456     }
 457 }
 458
 459
 460 Pixmap
 461 makeMenuPixmap(PopUpButton *bPtr)
 462 {
 463     Pixmap pixmap;
 464     W_Screen *scr = bPtr->view->screen;
 465     int i;
 466     int yo;
 467     int width, height, itemHeight;
 468
 469     itemHeight = bPtr->view->size.height;
 470     width = bPtr->view->size.width;
 471     height = itemHeight * WMGetBagItemCount(bPtr->items);
 472     yo = (itemHeight - WMFontHeight(scr->normalFont))/2;
 473
 474     pixmap = XCreatePixmap(scr->display, bPtr->view->window, width, height,
 475                            scr->depth);
 476
 477     XFillRectangle(scr->display, pixmap, WMColorGC(scr->gray), 0, 0,
 478                    width, height);
 479
 480     for (i = 0; i < WMGetBagItemCount(bPtr->items); i++) {
 481         GC gc;
 482         WMMenuItem *item;
 483         char *text;
 484
 485         item = (WMMenuItem*)WMGetFromBag(bPtr->items, i);
 486         text = WMGetMenuItemTitle(item);
 487
 488         W_DrawRelief(scr, pixmap, 0, i*itemHeight, width, itemHeight,
 489                      WRRaised);
 490
 491         if (!WMGetMenuItemEnabled(item))
 492             gc = WMColorGC(scr->darkGray);
 493         else
 494             gc = WMColorGC(scr->black);
 495
 496         W_PaintText(bPtr->menuView, pixmap, scr->normalFont,  6,
 497                     i*itemHeight + yo, width, WALeft, gc, False,
 498                     text, strlen(text));
 499
 500         if (!bPtr->flags.pullsDown && i == bPtr->selectedItemIndex) {
 501             XCopyArea(scr->display, scr->popUpIndicator->pixmap, pixmap,
 502                       scr->copyGC, 0, 0, scr->popUpIndicator->width,
 503                       scr->popUpIndicator->height,
 504                       width-scr->popUpIndicator->width-4,
 505                       i*itemHeight+(itemHeight-scr->popUpIndicator->height)/2);
 506         }
 507     }
 508
 509     return pixmap;
 510 }
 511
 512
 513 static void
 514 resizeMenu(PopUpButton *bPtr)
 515 {
 516     int height;
 517
 518     height = WMGetBagItemCount(bPtr->items) * bPtr->view->size.height;
 519     if (height > 0)
 520         W_ResizeView(bPtr->menuView, bPtr->view->size.width, height);
 521 }
 522
 523
 524 static void
 525 popUpMenu(PopUpButton *bPtr)
 526 {
 527     W_Screen *scr = bPtr->view->screen;
 528     Window dummyW;
 529     int x, y;
 530
 531     if (!bPtr->menuView->flags.realized) {
 532         W_RealizeView(bPtr->menuView);
 533         resizeMenu(bPtr);
 534     }
 535
 536     if (WMGetBagItemCount(bPtr->items) < 1)
 537         return;
 538
 539     XTranslateCoordinates(scr->display, bPtr->view->window, scr->rootWin,
 540                           0, 0, &x, &y, &dummyW);
 541
 542     if (bPtr->flags.pullsDown) {
 543         y += bPtr->view->size.height;
 544     } else {
 545         y -= bPtr->view->size.height*bPtr->selectedItemIndex;
 546     }
 547     W_MoveView(bPtr->menuView, x, y);
 548
 549     XSetWindowBackgroundPixmap(scr->display, bPtr->menuView->window,
 550                                makeMenuPixmap(bPtr));
 551     XClearWindow(scr->display, bPtr->menuView->window);
 552
 553     W_MapView(bPtr->menuView);
 554
 555     bPtr->highlightedItem = 0;
 556     if (!bPtr->flags.pullsDown && bPtr->selectedItemIndex < 0)
 557         paintMenuEntry(bPtr, bPtr->selectedItemIndex, True);
 558 }
 559
 560
 561 static void
 562 popDownMenu(PopUpButton *bPtr)
 563 {
 564     W_UnmapView(bPtr->menuView);
 565
 566     /* free the background pixmap used to draw the menu contents */
 567     XSetWindowBackgroundPixmap(bPtr->view->screen->display,
 568                                bPtr->menuView->window, None);
 569 }
 570
 571
 572 static void
 573 autoScroll(void *data)
 574 {
 575     PopUpButton *bPtr = (PopUpButton*)data;
 576     int scrHeight = WMWidgetScreen(bPtr)->rootView->size.height;
 577     int repeat = 0;
 578     int dy = 0;
 579
 580
 581     if (bPtr->scrollStartY >= scrHeight-1
 582         && bPtr->menuView->pos.y+bPtr->menuView->size.height >= scrHeight-1) {
 583         repeat = 1;
 584
 585         if (bPtr->menuView->pos.y+bPtr->menuView->size.height-5
 586             <= scrHeight - 1) {
 587             dy = scrHeight - 1
 588                 - (bPtr->menuView->pos.y+bPtr->menuView->size.height);
 589         } else
 590             dy = -5;
 591
 592     } else if (bPtr->scrollStartY <= 1 && bPtr->menuView->pos.y < 1) {
 593         repeat = 1;
 594
 595         if (bPtr->menuView->pos.y+5 > 1)
 596             dy = 1 - bPtr->menuView->pos.y;
 597         else
 598             dy = 5;
 599     }
 600
 601     if (repeat) {
 602         int oldItem;
 603
 604         W_MoveView(bPtr->menuView, bPtr->menuView->pos.x,
 605                    bPtr->menuView->pos.y + dy);
 606
 607         oldItem = bPtr->highlightedItem;
 608         bPtr->highlightedItem = (bPtr->scrollStartY - bPtr->menuView->pos.y)
 609             / bPtr->view->size.height;
 610
 611         if (oldItem!=bPtr->highlightedItem) {
 612             WMMenuItem *item;
 613
 614             paintMenuEntry(bPtr, oldItem, False);
 615
 616             if (bPtr->highlightedItem >= 0 &&
 617                 bPtr->highlightedItem < WMGetBagItemCount(bPtr->items)) {
 618                 item = WMGetPopUpButtonMenuItem(bPtr, bPtr->highlightedItem);
 619                 paintMenuEntry(bPtr, bPtr->highlightedItem,
 620                                WMGetMenuItemEnabled(item));
 621             } else {
 622                 bPtr->highlightedItem = -1;
 623             }
 624         }
 625
 626         bPtr->timer = WMAddTimerHandler(SCROLL_DELAY, autoScroll, bPtr);
 627     } else {
 628         bPtr->timer = NULL;
 629     }
 630 }
 631
 632
 633 static void
 634 handleActionEvents(XEvent *event, void *data)
 635 {
 636     PopUpButton *bPtr = (PopUpButton*)data;
 637     int oldItem;
 638     int scrHeight = WMWidgetScreen(bPtr)->rootView->size.height;
 639
 640     CHECK_CLASS(data, WC_PopUpButton);
 641
 642     if (WMGetBagItemCount(bPtr->items) < 1)
 643         return;
 644
 645     switch (event->type) {
 646         /* called for menuView */
 647      case Expose:
 648         paintMenuEntry(bPtr, bPtr->highlightedItem, True);
 649         break;
 650
 651      case LeaveNotify:
 652         bPtr->flags.insideMenu = 0;
 653         if (bPtr->menuView->flags.mapped)
 654             paintMenuEntry(bPtr, bPtr->highlightedItem, False);
 655         bPtr->highlightedItem = -1;
 656         break;
 657
 658      case EnterNotify:
 659         bPtr->flags.insideMenu = 1;
 660         break;
 661
 662      case MotionNotify:
 663         if (bPtr->flags.insideMenu) {
 664             oldItem = bPtr->highlightedItem;
 665             bPtr->highlightedItem = event->xmotion.y / bPtr->view->size.height;
 666             if (oldItem!=bPtr->highlightedItem) {
 667                 WMMenuItem *item;
 668
 669                 paintMenuEntry(bPtr, oldItem, False);
 670                 if (bPtr->highlightedItem >= 0 &&
 671                     bPtr->highlightedItem < WMGetBagItemCount(bPtr->items)) {
 672                     item = WMGetPopUpButtonMenuItem(bPtr, bPtr->highlightedItem);
 673                     paintMenuEntry(bPtr, bPtr->highlightedItem,
 674                                    WMGetMenuItemEnabled(item));
 675                 } else {
 676                     bPtr->highlightedItem = -1;
 677                 }
 678
 679             }
 680
 681             if (event->xmotion.y_root >= scrHeight-1
 682                 || event->xmotion.y_root <= 1) {
 683                 bPtr->scrollStartY = event->xmotion.y_root;
 684                 if (!bPtr->timer)
 685                     autoScroll(bPtr);
 686             } else if (bPtr->timer) {
 687                 WMDeleteTimerHandler(bPtr->timer);
 688                 bPtr->timer = NULL;
 689             }
 690         }
 691         break;
 692
 693         /* called for bPtr->view */
 694      case ButtonPress:
 695         if (!bPtr->flags.enabled)
 696             break;
 697
 698         popUpMenu(bPtr);
 699         if (!bPtr->flags.pullsDown) {
 700             bPtr->highlightedItem = bPtr->selectedItemIndex;
 701             bPtr->flags.insideMenu = 1;
 702         } else {
 703             bPtr->highlightedItem = -1;
 704             bPtr->flags.insideMenu = 0;
 705         }
 706         XGrabPointer(bPtr->view->screen->display, bPtr->menuView->window,
 707                      False, ButtonReleaseMask|ButtonMotionMask|EnterWindowMask
 708                      |LeaveWindowMask, GrabModeAsync, GrabModeAsync,
 709                      None, None, CurrentTime);
 710         break;
 711
 712      case ButtonRelease:
 713         XUngrabPointer(bPtr->view->screen->display, event->xbutton.time);
 714         if (!bPtr->flags.pullsDown)
 715             popDownMenu(bPtr);
 716
 717         if (bPtr->timer) {
 718             WMDeleteTimerHandler(bPtr->timer);
 719             bPtr->timer = NULL;
 720         }
 721
 722         if (bPtr->flags.insideMenu && bPtr->highlightedItem>=0) {
 723             WMMenuItem *item;
 724
 725             item = WMGetPopUpButtonMenuItem(bPtr, bPtr->highlightedItem);
 726
 727             if (WMGetMenuItemEnabled(item)) {
 728                 int i;
 729                 WMSetPopUpButtonSelectedItem(bPtr, bPtr->highlightedItem);
 730
 731                 if (bPtr->flags.pullsDown) {
 732                     for (i=0; i<MENU_BLINK_COUNT; i++) {
 733                         paintMenuEntry(bPtr, bPtr->highlightedItem, False);
 734                         XSync(bPtr->view->screen->display, 0);
 735                         wusleep(MENU_BLINK_DELAY);
 736                         paintMenuEntry(bPtr, bPtr->highlightedItem, True);
 737                         XSync(bPtr->view->screen->display, 0);
 738                         wusleep(MENU_BLINK_DELAY);
 739                     }
 740                 }
 741                 paintMenuEntry(bPtr, bPtr->highlightedItem, False);
 742                 popDownMenu(bPtr);
 743                 if (bPtr->action)
 744                     (*bPtr->action)(bPtr, bPtr->clientData);
 745             }
 746         }
 747         if (bPtr->menuView->flags.mapped)
 748             popDownMenu(bPtr);
 749         break;
 750     }
 751 }
 752
 753
 754
 755 static void
 756 destroyPopUpButton(PopUpButton *bPtr)
 757 {
 758     WMMenuItem *item;
 759     int i;
 760
 761     if (bPtr->timer) {
 762         WMDeleteTimerHandler(bPtr->timer);
 763     }
 764
 765     for (i = 0; i < WMGetBagItemCount(bPtr->items); i++) {
 766         item = WMGetFromBag(bPtr->items, i);
 767         WMDestroyMenuItem(item);
 768     }
 769     WMFreeBag(bPtr->items);
 770
 771     if (bPtr->caption)
 772         wfree(bPtr->caption);
 773
 774     /* have to destroy explicitly because the popup is a toplevel */
 775     W_DestroyView(bPtr->menuView);
 776
 777     wfree(bPtr);
 778 }