WPrefs.app/editmenu.c

   1 /* editmenu.c - editable menus
   2  *
   3  *  WPrefs - Window Maker Preferences Program
   4  *
   5  *  Copyright (c) 2000-2003 Alfredo K. Kojima
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License along
  18  *  with this program; if not, write to the Free Software Foundation, Inc.,
  19  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include <WINGs/WINGsP.h>
  23 #include <WINGs/WUtil.h>
  24 #include <stdlib.h>
  25 #include <stdint.h>
  26 #include <assert.h>
  27 #include <ctype.h>
  28
  29 #include "editmenu.h"
  30
  31 typedef struct W_EditMenuItem {
  32         W_Class widgetClass;
  33         WMView *view;
  34
  35         struct W_EditMenu *parent;
  36
  37         char *label;
  38         WMPixmap *pixmap;       /* pixmap to show at left */
  39
  40         void *data;
  41         WMCallback *destroyData;
  42
  43         struct W_EditMenu *submenu;     /* if it's a cascade, NULL otherwise */
  44
  45         struct {
  46                 unsigned isTitle:1;
  47                 unsigned isHighlighted:1;
  48         } flags;
  49 } EditMenuItem;
  50
  51 typedef struct W_EditMenu {
  52         W_Class widgetClass;
  53         WMView *view;
  54
  55         struct W_EditMenu *parent;
  56
  57         WMArray *items;         /* EditMenuItem */
  58
  59         EditMenuItem *selectedItem;
  60
  61         WMTextField *tfield;
  62
  63         WMButton *closeB;
  64
  65         int titleHeight;
  66         int itemHeight;
  67
  68         WEditMenuDelegate *delegate;
  69
  70         WMTextFieldDelegate *tdelegate;
  71
  72         /* item dragging */
  73         int draggedItem;
  74         int dragX, dragY;
  75
  76         /* only for non-standalone menu */
  77         WMSize maxSize;
  78         WMSize minSize;
  79
  80         struct {
  81                 unsigned standalone:1;
  82                 unsigned isTitled:1;
  83
  84                 unsigned acceptsDrop:1;
  85                 unsigned isFactory:1;
  86                 unsigned isSelectable:1;
  87                 unsigned isEditable:1;
  88
  89                 unsigned isTornOff:1;
  90
  91                 unsigned isDragging:1;
  92                 unsigned isEditing:1;
  93
  94                 unsigned wasMapped:1;
  95         } flags;
  96 } EditMenu;
  97
  98 /******************** WEditMenuItem ********************/
  99
 100 static void destroyEditMenuItem(WEditMenuItem * iPtr);
 101 static void paintEditMenuItem(WEditMenuItem * iPtr);
 102 static void handleItemEvents(XEvent * event, void *data);
 103
 104 static void handleItemClick(XEvent * event, void *data);
 105
 106 static W_Class EditMenuItemClass = 0;
 107
 108 W_Class InitEditMenuItem(void)
 109 {
 110         /* register our widget with WINGs and get our widget class ID */
 111         if (!EditMenuItemClass) {
 112                 EditMenuItemClass = W_RegisterUserWidget();
 113         }
 114
 115         return EditMenuItemClass;
 116 }
 117
 118 WEditMenuItem *WCreateEditMenuItem(WMWidget * parent, const char *title, Bool isTitle)
 119 {
 120         WEditMenuItem *iPtr;
 121         WMScreen *scr = WMWidgetScreen(parent);
 122
 123         if (!EditMenuItemClass)
 124                 InitEditMenuItem();
 125
 126         iPtr = wmalloc(sizeof(WEditMenuItem));
 127
 128         iPtr->widgetClass = EditMenuItemClass;
 129
 130         iPtr->view = W_CreateView(W_VIEW(parent));
 131         if (!iPtr->view) {
 132                 wfree(iPtr);
 133                 return NULL;
 134         }
 135         iPtr->view->self = iPtr;
 136
 137         iPtr->parent = parent;
 138
 139         iPtr->label = wstrdup(title);
 140
 141         iPtr->flags.isTitle = isTitle;
 142
 143         if (isTitle) {
 144                 WMSetWidgetBackgroundColor(iPtr, WMBlackColor(scr));
 145         }
 146
 147         WMCreateEventHandler(iPtr->view, ExposureMask | StructureNotifyMask, handleItemEvents, iPtr);
 148
 149         WMCreateEventHandler(iPtr->view, ButtonPressMask | ButtonReleaseMask
 150                              | ButtonMotionMask, handleItemClick, iPtr);
 151
 152         return iPtr;
 153 }
 154
 155 char *WGetEditMenuItemTitle(WEditMenuItem * item)
 156 {
 157         return item->label;
 158 }
 159
 160 void *WGetEditMenuItemData(WEditMenuItem * item)
 161 {
 162         return item->data;
 163 }
 164
 165 void WSetEditMenuItemData(WEditMenuItem * item, void *data, WMCallback * destroyer)
 166 {
 167         item->data = data;
 168         item->destroyData = destroyer;
 169 }
 170
 171 void WSetEditMenuItemImage(WEditMenuItem * item, WMPixmap * pixmap)
 172 {
 173         if (item->pixmap)
 174                 WMReleasePixmap(item->pixmap);
 175         item->pixmap = WMRetainPixmap(pixmap);
 176 }
 177
 178 static void paintEditMenuItem(WEditMenuItem * iPtr)
 179 {
 180         WMScreen *scr = WMWidgetScreen(iPtr);
 181         WMColor *color;
 182         Window win = W_VIEW(iPtr)->window;
 183         int w = W_VIEW(iPtr)->size.width;
 184         int h = W_VIEW(iPtr)->size.height;
 185         WMFont *font = (iPtr->flags.isTitle ? scr->boldFont : scr->normalFont);
 186
 187         if (!iPtr->view->flags.realized)
 188                 return;
 189
 190         color = scr->black;
 191         if (iPtr->flags.isTitle && !iPtr->flags.isHighlighted) {
 192                 color = scr->white;
 193         }
 194
 195         XClearWindow(scr->display, win);
 196
 197         W_DrawRelief(scr, win, 0, 0, w + 1, h, WRRaised);
 198
 199         WMDrawString(scr, win, color, font, 5, 3, iPtr->label, strlen(iPtr->label));
 200
 201         if (iPtr->pixmap) {
 202                 WMSize size = WMGetPixmapSize(iPtr->pixmap);
 203
 204                 WMDrawPixmap(iPtr->pixmap, win, w - size.width - 5, (h - size.height) / 2);
 205         } else if (iPtr->submenu) {
 206                 /* draw the cascade indicator */
 207                 XDrawLine(scr->display, win, WMColorGC(scr->darkGray), w - 11, 6, w - 6, h / 2 - 1);
 208                 XDrawLine(scr->display, win, WMColorGC(scr->white), w - 11, h - 8, w - 6, h / 2 - 1);
 209                 XDrawLine(scr->display, win, WMColorGC(scr->black), w - 12, 6, w - 12, h - 8);
 210         }
 211 }
 212
 213 static void highlightItem(WEditMenuItem * iPtr, Bool high)
 214 {
 215         if (iPtr->flags.isTitle)
 216                 return;
 217
 218         iPtr->flags.isHighlighted = high;
 219
 220         if (high) {
 221                 WMSetWidgetBackgroundColor(iPtr, WMWhiteColor(WMWidgetScreen(iPtr)));
 222         } else {
 223                 if (!iPtr->flags.isTitle) {
 224                         WMSetWidgetBackgroundColor(iPtr, WMGrayColor(WMWidgetScreen(iPtr)));
 225                 } else {
 226                         WMSetWidgetBackgroundColor(iPtr, WMBlackColor(WMWidgetScreen(iPtr)));
 227                 }
 228         }
 229 }
 230
 231 static int getItemTextWidth(WEditMenuItem * iPtr)
 232 {
 233         WMScreen *scr = WMWidgetScreen(iPtr);
 234
 235         if (iPtr->flags.isTitle) {
 236                 return WMWidthOfString(scr->boldFont, iPtr->label, strlen(iPtr->label));
 237         } else {
 238                 return WMWidthOfString(scr->normalFont, iPtr->label, strlen(iPtr->label));
 239         }
 240 }
 241
 242 static void handleItemEvents(XEvent * event, void *data)
 243 {
 244         WEditMenuItem *iPtr = (WEditMenuItem *) data;
 245
 246         switch (event->type) {
 247         case Expose:
 248                 if (event->xexpose.count != 0)
 249                         break;
 250                 paintEditMenuItem(iPtr);
 251                 break;
 252
 253         case DestroyNotify:
 254                 destroyEditMenuItem(iPtr);
 255                 break;
 256         }
 257 }
 258
 259 static void destroyEditMenuItem(WEditMenuItem * iPtr)
 260 {
 261         if (iPtr->label)
 262                 wfree(iPtr->label);
 263         if (iPtr->data && iPtr->destroyData)
 264                 (*iPtr->destroyData) (iPtr->data);
 265         if (iPtr->submenu)
 266                 WMDestroyWidget(iPtr->submenu);
 267
 268         wfree(iPtr);
 269 }
 270
 271 /******************** WEditMenu *******************/
 272
 273 static void destroyEditMenu(WEditMenu * mPtr);
 274
 275 static void updateMenuContents(WEditMenu * mPtr);
 276
 277 static void handleEvents(XEvent * event, void *data);
 278
 279 static void editItemLabel(WEditMenuItem * item);
 280
 281 static void stopEditItem(WEditMenu * menu, Bool apply);
 282
 283 static void deselectItem(WEditMenu * menu);
 284
 285 static W_Class EditMenuClass = 0;
 286
 287 W_Class InitEditMenu(void)
 288 {
 289         /* register our widget with WINGs and get our widget class ID */
 290         if (!EditMenuClass) {
 291
 292                 EditMenuClass = W_RegisterUserWidget();
 293         }
 294
 295         return EditMenuClass;
 296 }
 297
 298 typedef struct {
 299         int flags;
 300         int window_style;
 301         int window_level;
 302         int reserved;
 303         Pixmap miniaturize_pixmap;      /* pixmap for miniaturize button */
 304         Pixmap close_pixmap;    /* pixmap for close button */
 305         Pixmap miniaturize_mask;        /* miniaturize pixmap mask */
 306         Pixmap close_mask;      /* close pixmap mask */
 307         int extra_flags;
 308 } GNUstepWMAttributes;
 309
 310 #define GSWindowStyleAttr       (1<<0)
 311 #define GSWindowLevelAttr       (1<<1)
 312
 313 static void writeGNUstepWMAttr(WMScreen * scr, Window window, GNUstepWMAttributes * attr)
 314 {
 315         unsigned long data[9];
 316
 317         /* handle idiot compilers where array of CARD32 != struct of CARD32 */
 318         data[0] = attr->flags;
 319         data[1] = attr->window_style;
 320         data[2] = attr->window_level;
 321         data[3] = 0;            /* reserved */
 322         /* The X protocol says XIDs are 32bit */
 323         data[4] = attr->miniaturize_pixmap;
 324         data[5] = attr->close_pixmap;
 325         data[6] = attr->miniaturize_mask;
 326         data[7] = attr->close_mask;
 327         data[8] = attr->extra_flags;
 328         XChangeProperty(scr->display, window, scr->attribsAtom, scr->attribsAtom,
 329                         32, PropModeReplace, (unsigned char *)data, 9);
 330 }
 331
 332 static void realizeObserver(void *self, WMNotification * not)
 333 {
 334         WEditMenu *menu = (WEditMenu *) self;
 335         GNUstepWMAttributes attribs;
 336
 337         /* Parameter not used, but tell the compiler that it is ok */
 338         (void) not;
 339
 340         memset(&attribs, 0, sizeof(GNUstepWMAttributes));
 341         attribs.flags = GSWindowStyleAttr | GSWindowLevelAttr;
 342         attribs.window_style = WMBorderlessWindowMask;
 343         attribs.window_level = WMSubmenuWindowLevel;
 344
 345         writeGNUstepWMAttr(WMWidgetScreen(menu), menu->view->window, &attribs);
 346 }
 347
 348 static void itemSelectObserver(void *self, WMNotification * notif)
 349 {
 350         WEditMenu *menu = (WEditMenu *) self;
 351         WEditMenu *rmenu;
 352
 353         rmenu = (WEditMenu *) WMGetNotificationObject(notif);
 354         /* check whether rmenu is from the same hierarchy of menu? */
 355
 356         if (rmenu == menu) {
 357                 return;
 358         }
 359
 360         if (menu->selectedItem) {
 361                 if (!menu->selectedItem->submenu)
 362                         deselectItem(menu);
 363                 if (menu->flags.isEditing)
 364                         stopEditItem(menu, False);
 365         }
 366 }
 367
 368 static WEditMenu *makeEditMenu(WMScreen * scr, WMWidget * parent, const char *title)
 369 {
 370         WEditMenu *mPtr;
 371         WEditMenuItem *item;
 372
 373         if (!EditMenuClass)
 374                 InitEditMenu();
 375
 376         mPtr = wmalloc(sizeof(WEditMenu));
 377
 378         mPtr->widgetClass = EditMenuClass;
 379
 380         if (parent) {
 381                 mPtr->view = W_CreateView(W_VIEW(parent));
 382                 mPtr->flags.standalone = 0;
 383         } else {
 384                 mPtr->view = W_CreateTopView(scr);
 385                 mPtr->flags.standalone = 1;
 386         }
 387         if (!mPtr->view) {
 388                 wfree(mPtr);
 389                 return NULL;
 390         }
 391         mPtr->view->self = mPtr;
 392
 393         mPtr->flags.isSelectable = 1;
 394         mPtr->flags.isEditable = 1;
 395
 396         W_SetViewBackgroundColor(mPtr->view, scr->darkGray);
 397
 398         WMAddNotificationObserver(realizeObserver, mPtr, WMViewRealizedNotification, mPtr->view);
 399
 400         WMAddNotificationObserver(itemSelectObserver, mPtr, "EditMenuItemSelected", NULL);
 401
 402         mPtr->items = WMCreateArray(4);
 403
 404         WMCreateEventHandler(mPtr->view, ExposureMask | StructureNotifyMask, handleEvents, mPtr);
 405
 406         if (title != NULL) {
 407                 item = WCreateEditMenuItem(mPtr, title, True);
 408
 409                 WMMapWidget(item);
 410                 WMAddToArray(mPtr->items, item);
 411
 412                 mPtr->flags.isTitled = 1;
 413         }
 414
 415         mPtr->itemHeight = WMFontHeight(scr->normalFont) + 6;
 416         mPtr->titleHeight = WMFontHeight(scr->boldFont) + 8;
 417
 418         updateMenuContents(mPtr);
 419
 420         return mPtr;
 421 }
 422
 423 WEditMenu *WCreateEditMenu(WMScreen * scr, const char *title)
 424 {
 425         return makeEditMenu(scr, NULL, title);
 426 }
 427
 428 WEditMenu *WCreateEditMenuPad(WMWidget * parent)
 429 {
 430         return makeEditMenu(WMWidgetScreen(parent), parent, NULL);
 431 }
 432
 433 void WSetEditMenuDelegate(WEditMenu * mPtr, WEditMenuDelegate * delegate)
 434 {
 435         mPtr->delegate = delegate;
 436 }
 437
 438 WEditMenuItem *WInsertMenuItemWithTitle(WEditMenu * mPtr, int index, const char *title)
 439 {
 440         WEditMenuItem *item;
 441
 442         item = WCreateEditMenuItem(mPtr, title, False);
 443
 444         WMMapWidget(item);
 445
 446         if (index >= WMGetArrayItemCount(mPtr->items)) {
 447                 WMAddToArray(mPtr->items, item);
 448         } else {
 449                 if (index < 0)
 450                         index = 0;
 451                 if (mPtr->flags.isTitled)
 452                         index++;
 453                 WMInsertInArray(mPtr->items, index, item);
 454         }
 455
 456         updateMenuContents(mPtr);
 457
 458         return item;
 459 }
 460
 461 WEditMenuItem *WGetEditMenuItem(WEditMenu * mPtr, int index)
 462 {
 463         if (index >= WMGetArrayItemCount(mPtr->items))
 464                 return NULL;
 465
 466         return WMGetFromArray(mPtr->items, index + (mPtr->flags.isTitled ? 1 : 0));
 467 }
 468
 469 WEditMenuItem *WAddMenuItemWithTitle(WEditMenu * mPtr, const char *title)
 470 {
 471         return WInsertMenuItemWithTitle(mPtr, WMGetArrayItemCount(mPtr->items), title);
 472 }
 473
 474 void WSetEditMenuTitle(WEditMenu * mPtr, const char *title)
 475 {
 476         WEditMenuItem *item;
 477
 478         item = WMGetFromArray(mPtr->items, 0);
 479
 480         wfree(item->label);
 481         item->label = wstrdup(title);
 482
 483         updateMenuContents(mPtr);
 484
 485         WMRedisplayWidget(item);
 486 }
 487
 488 char *WGetEditMenuTitle(WEditMenu * mPtr)
 489 {
 490         WEditMenuItem *item;
 491
 492         item = WMGetFromArray(mPtr->items, 0);
 493
 494         return item->label;
 495 }
 496
 497 void WSetEditMenuAcceptsDrop(WEditMenu * mPtr, Bool flag)
 498 {
 499         mPtr->flags.acceptsDrop = flag;
 500 }
 501
 502 void WSetEditMenuSubmenu(WEditMenu * mPtr, WEditMenuItem * item, WEditMenu * submenu)
 503 {
 504         item->submenu = submenu;
 505         submenu->parent = mPtr;
 506
 507         paintEditMenuItem(item);
 508 }
 509
 510 WEditMenu *WGetEditMenuSubmenu(WEditMenuItem *item)
 511 {
 512         return item->submenu;
 513 }
 514
 515 void WRemoveEditMenuItem(WEditMenu * mPtr, WEditMenuItem * item)
 516 {
 517         if (WMRemoveFromArray(mPtr->items, item) != 0) {
 518                 updateMenuContents(mPtr);
 519         }
 520 }
 521
 522 void WSetEditMenuSelectable(WEditMenu * mPtr, Bool flag)
 523 {
 524         mPtr->flags.isSelectable = flag;
 525 }
 526
 527 void WSetEditMenuEditable(WEditMenu * mPtr, Bool flag)
 528 {
 529         mPtr->flags.isEditable = flag;
 530 }
 531
 532 void WSetEditMenuIsFactory(WEditMenu * mPtr, Bool flag)
 533 {
 534         mPtr->flags.isFactory = flag;
 535 }
 536
 537 void WSetEditMenuMinSize(WEditMenu * mPtr, WMSize size)
 538 {
 539         mPtr->minSize.width = size.width;
 540         mPtr->minSize.height = size.height;
 541 }
 542
 543 void WSetEditMenuMaxSize(WEditMenu * mPtr, WMSize size)
 544 {
 545         mPtr->maxSize.width = size.width;
 546         mPtr->maxSize.height = size.height;
 547 }
 548
 549 WMPoint WGetEditMenuLocationForSubmenu(WEditMenu * mPtr, WEditMenu * submenu)
 550 {
 551         WMArrayIterator iter;
 552         WEditMenuItem *item;
 553         int y;
 554
 555         if (mPtr->flags.isTitled)
 556                 y = -mPtr->titleHeight;
 557         else
 558                 y = 0;
 559         WM_ITERATE_ARRAY(mPtr->items, item, iter) {
 560                 if (item->submenu == submenu) {
 561                         WMPoint pt = WMGetViewScreenPosition(mPtr->view);
 562
 563                         return wmkpoint(pt.x + mPtr->view->size.width, pt.y + y);
 564                 }
 565                 y += W_VIEW_HEIGHT(item->view);
 566         }
 567
 568         puts("invalid submenu passed to WGetEditMenuLocationForSubmenu()");
 569
 570         return wmkpoint(0, 0);
 571 }
 572
 573 static void closeMenuAction(WMWidget * w, void *data)
 574 {
 575         WEditMenu *menu = (WEditMenu *) data;
 576
 577         /* Parameter not used, but tell the compiler that it is ok */
 578         (void) w;
 579
 580         WMAddIdleHandler(WMDestroyWidget, menu->closeB);
 581         menu->closeB = NULL;
 582
 583         WEditMenuHide(menu);
 584 }
 585
 586 void WTearOffEditMenu(WEditMenu * menu, WEditMenu * submenu)
 587 {
 588         WEditMenuItem *item;
 589
 590         submenu->flags.isTornOff = 1;
 591
 592         item = (WEditMenuItem *) WMGetFromArray(submenu->items, 0);
 593
 594         submenu->closeB = WMCreateCommandButton(item);
 595         WMResizeWidget(submenu->closeB, 15, 15);
 596         WMMoveWidget(submenu->closeB, W_VIEW(submenu)->size.width - 20, 3);
 597         WMRealizeWidget(submenu->closeB);
 598         WMSetButtonText(submenu->closeB, "X");
 599         WMSetButtonAction(submenu->closeB, closeMenuAction, submenu);
 600         WMMapWidget(submenu->closeB);
 601
 602         if (menu->selectedItem && menu->selectedItem->submenu == submenu)
 603                 deselectItem(menu);
 604 }
 605
 606 Bool WEditMenuIsTornOff(WEditMenu * mPtr)
 607 {
 608         return mPtr->flags.isTornOff;
 609 }
 610
 611 void WEditMenuHide(WEditMenu * mPtr)
 612 {
 613         WEditMenuItem *item;
 614         int i = 0;
 615
 616         if (WMWidgetIsMapped(mPtr)) {
 617                 WMUnmapWidget(mPtr);
 618                 mPtr->flags.wasMapped = 1;
 619         } else {
 620                 mPtr->flags.wasMapped = 0;
 621         }
 622         while ((item = WGetEditMenuItem(mPtr, i++))) {
 623                 WEditMenu *submenu;
 624
 625                 submenu = WGetEditMenuSubmenu(item);
 626                 if (submenu) {
 627                         WEditMenuHide(submenu);
 628                 }
 629         }
 630 }
 631
 632 void WEditMenuUnhide(WEditMenu * mPtr)
 633 {
 634         WEditMenuItem *item;
 635         int i = 0;
 636
 637         if (mPtr->flags.wasMapped) {
 638                 WMMapWidget(mPtr);
 639         }
 640         while ((item = WGetEditMenuItem(mPtr, i++))) {
 641                 WEditMenu *submenu;
 642
 643                 submenu = WGetEditMenuSubmenu(item);
 644                 if (submenu) {
 645                         WEditMenuUnhide(submenu);
 646                 }
 647         }
 648 }
 649
 650 void WEditMenuShowAt(WEditMenu * menu, int x, int y)
 651 {
 652         XSizeHints *hints;
 653
 654         hints = XAllocSizeHints();
 655
 656         hints->flags = USPosition;
 657         hints->x = x;
 658         hints->y = y;
 659
 660         WMMoveWidget(menu, x, y);
 661         XSetWMNormalHints(W_VIEW_DISPLAY(menu->view), W_VIEW_DRAWABLE(menu->view), hints);
 662         XFree(hints);
 663
 664         WMMapWidget(menu);
 665 }
 666
 667 static void updateMenuContents(WEditMenu * mPtr)
 668 {
 669         int newW, newH;
 670         int w;
 671         int i;
 672         int iheight = mPtr->itemHeight;
 673         int offs = 1;
 674         WMArrayIterator iter;
 675         WEditMenuItem *item;
 676
 677         newW = 0;
 678         newH = offs;
 679
 680         i = 0;
 681         WM_ITERATE_ARRAY(mPtr->items, item, iter) {
 682                 w = getItemTextWidth(item);
 683
 684                 newW = WMAX(w, newW);
 685
 686                 WMMoveWidget(item, offs, newH);
 687                 if (i == 0 && mPtr->flags.isTitled) {
 688                         newH += mPtr->titleHeight;
 689                 } else {
 690                         newH += iheight;
 691                 }
 692                 i = 1;
 693         }
 694
 695         newW += iheight + 10;
 696         newH--;
 697
 698         if (mPtr->minSize.width)
 699                 newW = WMAX(newW, mPtr->minSize.width);
 700         if (mPtr->maxSize.width)
 701                 newW = WMIN(newW, mPtr->maxSize.width);
 702
 703         if (mPtr->minSize.height)
 704                 newH = WMAX(newH, mPtr->minSize.height);
 705         if (mPtr->maxSize.height)
 706                 newH = WMIN(newH, mPtr->maxSize.height);
 707
 708         if (W_VIEW(mPtr)->size.width == newW && mPtr->view->size.height == newH + 1)
 709                 return;
 710
 711         W_ResizeView(mPtr->view, newW, newH + 1);
 712
 713         if (mPtr->closeB)
 714                 WMMoveWidget(mPtr->closeB, newW - 20, 3);
 715
 716         newW -= 2 * offs;
 717
 718         i = 0;
 719         WM_ITERATE_ARRAY(mPtr->items, item, iter) {
 720                 if (i == 0 && mPtr->flags.isTitled) {
 721                         WMResizeWidget(item, newW, mPtr->titleHeight);
 722                 } else {
 723                         WMResizeWidget(item, newW, iheight);
 724                 }
 725                 i = 1;
 726         }
 727 }
 728
 729 static void deselectItem(WEditMenu * menu)
 730 {
 731         WEditMenu *submenu;
 732         WEditMenuItem *item = menu->selectedItem;
 733
 734         highlightItem(item, False);
 735
 736         if (menu->delegate && menu->delegate->itemDeselected) {
 737                 (*menu->delegate->itemDeselected) (menu->delegate, menu, item);
 738         }
 739         submenu = item->submenu;
 740
 741         if (submenu && !WEditMenuIsTornOff(submenu)) {
 742                 WEditMenuHide(submenu);
 743         }
 744
 745         menu->selectedItem = NULL;
 746 }
 747
 748 static void selectItem(WEditMenu * menu, WEditMenuItem * item)
 749 {
 750         if (!menu->flags.isSelectable || menu->selectedItem == item) {
 751                 return;
 752         }
 753         if (menu->selectedItem) {
 754                 deselectItem(menu);
 755         }
 756
 757         if (menu->flags.isEditing) {
 758                 stopEditItem(menu, False);
 759         }
 760
 761         if (item && !item->flags.isTitle) {
 762                 highlightItem(item, True);
 763
 764                 if (item->submenu && !W_VIEW_MAPPED(item->submenu->view)) {
 765                         WMPoint pt;
 766
 767                         pt = WGetEditMenuLocationForSubmenu(menu, item->submenu);
 768
 769                         WEditMenuShowAt(item->submenu, pt.x, pt.y);
 770
 771                         item->submenu->flags.isTornOff = 0;
 772                 }
 773
 774                 WMPostNotificationName("EditMenuItemSelected", menu, NULL);
 775
 776                 if (menu->delegate && menu->delegate->itemSelected) {
 777                         (*menu->delegate->itemSelected) (menu->delegate, menu, item);
 778                 }
 779         }
 780
 781         menu->selectedItem = item;
 782 }
 783
 784 static void paintMenu(WEditMenu * mPtr)
 785 {
 786         W_View *view = mPtr->view;
 787
 788         W_DrawRelief(W_VIEW_SCREEN(view), W_VIEW_DRAWABLE(view), 0, 0,
 789                      W_VIEW_WIDTH(view), W_VIEW_HEIGHT(view), WRSimple);
 790 }
 791
 792 static void handleEvents(XEvent * event, void *data)
 793 {
 794         WEditMenu *mPtr = (WEditMenu *) data;
 795
 796         switch (event->type) {
 797         case DestroyNotify:
 798                 destroyEditMenu(mPtr);
 799                 break;
 800
 801         case Expose:
 802                 if (event->xexpose.count == 0)
 803                         paintMenu(mPtr);
 804                 break;
 805         }
 806 }
 807
 808 /* -------------------------- Menu Label Editing ------------------------ */
 809
 810 static void stopEditItem(WEditMenu * menu, Bool apply)
 811 {
 812         if (apply) {
 813                 wfree(menu->selectedItem->label);
 814                 menu->selectedItem->label = WMGetTextFieldText(menu->tfield);
 815
 816                 updateMenuContents(menu);
 817
 818                 if (menu->delegate && menu->delegate->itemEdited) {
 819                         (*menu->delegate->itemEdited) (menu->delegate, menu, menu->selectedItem);
 820                 }
 821
 822         }
 823         WMUnmapWidget(menu->tfield);
 824         menu->flags.isEditing = 0;
 825 }
 826
 827 static void textEndedEditing(struct WMTextFieldDelegate *self, WMNotification * notif)
 828 {
 829         WEditMenu *menu = (WEditMenu *) self->data;
 830         uintptr_t reason;
 831         int i;
 832         WEditMenuItem *item;
 833
 834         if (!menu->flags.isEditing)
 835                 return;
 836
 837         reason = (uintptr_t)WMGetNotificationClientData(notif);
 838
 839         switch (reason) {
 840         case WMEscapeTextMovement:
 841                 stopEditItem(menu, False);
 842                 break;
 843
 844         case WMReturnTextMovement:
 845                 stopEditItem(menu, True);
 846                 break;
 847
 848         case WMTabTextMovement:
 849                 stopEditItem(menu, True);
 850
 851                 i = WMGetFirstInArray(menu->items, menu->selectedItem);
 852                 item = WMGetFromArray(menu->items, i + 1);
 853                 if (item != NULL) {
 854                         selectItem(menu, item);
 855                         editItemLabel(item);
 856                 }
 857                 break;
 858
 859         case WMBacktabTextMovement:
 860                 stopEditItem(menu, True);
 861
 862                 i = WMGetFirstInArray(menu->items, menu->selectedItem);
 863                 item = WMGetFromArray(menu->items, i - 1);
 864                 if (item != NULL) {
 865                         selectItem(menu, item);
 866                         editItemLabel(item);
 867                 }
 868                 break;
 869         }
 870 }
 871
 872 static WMTextFieldDelegate textFieldDelegate = {
 873         NULL,
 874         NULL,
 875         NULL,
 876         textEndedEditing,
 877         NULL,
 878         NULL
 879 };
 880
 881 static void editItemLabel(WEditMenuItem * item)
 882 {
 883         WEditMenu *mPtr = item->parent;
 884         WMTextField *tf;
 885
 886         if (!mPtr->flags.isEditable) {
 887                 return;
 888         }
 889
 890         if (!mPtr->tfield) {
 891                 mPtr->tfield = WMCreateTextField(mPtr);
 892                 WMSetTextFieldBeveled(mPtr->tfield, False);
 893                 WMRealizeWidget(mPtr->tfield);
 894
 895                 mPtr->tdelegate = wmalloc(sizeof(WMTextFieldDelegate));
 896                 memcpy(mPtr->tdelegate, &textFieldDelegate, sizeof(WMTextFieldDelegate));
 897
 898                 mPtr->tdelegate->data = mPtr;
 899
 900                 WMSetTextFieldDelegate(mPtr->tfield, mPtr->tdelegate);
 901         }
 902         tf = mPtr->tfield;
 903
 904         WMSetTextFieldText(tf, item->label);
 905         WMSelectTextFieldRange(tf, wmkrange(0, strlen(item->label)));
 906         WMResizeWidget(tf, mPtr->view->size.width, mPtr->itemHeight);
 907         WMMoveWidget(tf, 0, item->view->pos.y);
 908         WMMapWidget(tf);
 909         WMSetFocusToWidget(tf);
 910
 911         mPtr->flags.isEditing = 1;
 912 }
 913
 914 /* -------------------------------------------------- */
 915
 916 static void slideWindow(Display * dpy, Window win, int srcX, int srcY, int dstX, int dstY)
 917 {
 918         double x, y, dx, dy;
 919         int i;
 920         int iterations;
 921
 922         iterations = WMIN(25, WMAX(abs(dstX - srcX), abs(dstY - srcY)));
 923
 924         x = srcX;
 925         y = srcY;
 926
 927         dx = (double)(dstX - srcX) / iterations;
 928         dy = (double)(dstY - srcY) / iterations;
 929
 930         for (i = 0; i <= iterations; i++) {
 931                 XMoveWindow(dpy, win, x, y);
 932                 XFlush(dpy);
 933
 934                 wusleep(800);
 935
 936                 x += dx;
 937                 y += dy;
 938         }
 939 }
 940
 941 static int errorHandler(Display * d, XErrorEvent * ev)
 942 {
 943         /* Parameter not used, but tell the compiler that it is ok */
 944         (void) d;
 945         (void) ev;
 946
 947         /* just ignore */
 948         return 0;
 949 }
 950
 951 static WEditMenu *findMenuInWindow(Display * dpy, Window toplevel, int x, int y)
 952 {
 953         Window foo, bar;
 954         Window *children;
 955         unsigned nchildren;
 956         int i;
 957         WEditMenu *menu;
 958         WMView *view;
 959         int (*oldHandler) (Display *, XErrorEvent *);
 960
 961         view = W_GetViewForXWindow(dpy, toplevel);
 962         if (view && view->self && WMWidgetClass(view->self) == EditMenuClass) {
 963                 menu = (WEditMenu *) view->self;
 964                 if (menu->flags.acceptsDrop) {
 965                         return menu;
 966                 }
 967         }
 968
 969         if (!XQueryTree(dpy, toplevel, &foo, &bar, &children, &nchildren) || children == NULL) {
 970                 return NULL;
 971         }
 972
 973         oldHandler = XSetErrorHandler(errorHandler);
 974
 975         /* first window that contains the point is the one */
 976         for (i = nchildren - 1; i >= 0; i--) {
 977                 XWindowAttributes attr;
 978
 979                 if (XGetWindowAttributes(dpy, children[i], &attr)
 980                     && attr.map_state == IsViewable
 981                     && x >= attr.x && y >= attr.y && x < attr.x + attr.width && y < attr.y + attr.height) {
 982                         Window tmp;
 983
 984                         tmp = children[i];
 985
 986                         menu = findMenuInWindow(dpy, tmp, x - attr.x, y - attr.y);
 987                         if (menu) {
 988                                 XFree(children);
 989                                 return menu;
 990                         }
 991                 }
 992         }
 993
 994         XSetErrorHandler(oldHandler);
 995
 996         XFree(children);
 997         return NULL;
 998 }
 999
1000 static void handleDragOver(WEditMenu *menu, WMView *view, WEditMenuItem *item, int y)
1001 {
1002         WMScreen *scr = W_VIEW_SCREEN(menu->view);
1003         Window blaw;
1004         int mx, my;
1005         int offs;
1006
1007         XTranslateCoordinates(scr->display, W_VIEW_DRAWABLE(menu->view), scr->rootWin, 0, 0, &mx, &my, &blaw);
1008
1009         offs = menu->flags.standalone ? 0 : 1;
1010
1011         W_MoveView(view, mx + offs, y);
1012         if (view->size.width != menu->view->size.width) {
1013                 W_ResizeView(view, menu->view->size.width - 2 * offs, menu->itemHeight);
1014                 W_ResizeView(item->view, menu->view->size.width - 2 * offs, menu->itemHeight);
1015         }
1016 }
1017
1018 static void handleItemDrop(WEditMenu *menu, WEditMenuItem *item, int y)
1019 {
1020         WMScreen *scr = W_VIEW_SCREEN(menu->view);
1021         Window blaw;
1022         int mx, my;
1023         int index;
1024
1025         XTranslateCoordinates(scr->display, W_VIEW_DRAWABLE(menu->view), scr->rootWin, 0, 0, &mx, &my, &blaw);
1026
1027         index = y - my;
1028         if (menu->flags.isTitled) {
1029                 index -= menu->titleHeight;
1030         }
1031         index = (index + menu->itemHeight / 2) / menu->itemHeight;
1032         if (index < 0)
1033                 index = 0;
1034
1035         if (menu->flags.isTitled) {
1036                 index++;
1037         }
1038
1039         if (index > WMGetArrayItemCount(menu->items)) {
1040                 WMAddToArray(menu->items, item);
1041         } else {
1042                 WMInsertInArray(menu->items, index, item);
1043         }
1044
1045         W_ReparentView(item->view, menu->view, 0, index * menu->itemHeight);
1046
1047         item->parent = menu;
1048         if (item->submenu) {
1049                 item->submenu->parent = menu;
1050         }
1051
1052         updateMenuContents(menu);
1053 }
1054
1055 static void dragMenu(WEditMenu * menu)
1056 {
1057         WMScreen *scr = W_VIEW_SCREEN(menu->view);
1058         XEvent ev;
1059         Bool done = False;
1060         int dx, dy;
1061         unsigned blau;
1062         Window blaw;
1063
1064         XGetGeometry(scr->display, W_VIEW_DRAWABLE(menu->view), &blaw, &dx, &dy, &blau, &blau, &blau, &blau);
1065
1066         XTranslateCoordinates(scr->display, W_VIEW_DRAWABLE(menu->view), scr->rootWin, dx, dy, &dx, &dy, &blaw);
1067
1068         dx = menu->dragX - dx;
1069         dy = menu->dragY - dy;
1070
1071         XGrabPointer(scr->display, scr->rootWin, False,
1072                      ButtonReleaseMask | ButtonMotionMask,
1073                      GrabModeAsync, GrabModeAsync, None, scr->defaultCursor, CurrentTime);
1074
1075         if (menu->parent)
1076                 WTearOffEditMenu(menu->parent, menu);
1077
1078         while (!done) {
1079                 WMNextEvent(scr->display, &ev);
1080
1081                 switch (ev.type) {
1082                 case ButtonRelease:
1083                         done = True;
1084                         break;
1085
1086                 case MotionNotify:
1087                         while (XCheckMaskEvent(scr->display, ButtonMotionMask, &ev)) ;
1088
1089                         WMMoveWidget(menu, ev.xmotion.x_root - dx, ev.xmotion.y_root - dy);
1090                         break;
1091
1092                 default:
1093                         WMHandleEvent(&ev);
1094                         break;
1095                 }
1096         }
1097
1098         XUngrabPointer(scr->display, CurrentTime);
1099 }
1100
1101 static WEditMenuItem *duplicateItem(WEditMenuItem * item)
1102 {
1103         WEditMenuItem *nitem;
1104
1105         nitem = WCreateEditMenuItem(item->parent, item->label, False);
1106         if (item->pixmap)
1107                 nitem->pixmap = WMRetainPixmap(item->pixmap);
1108
1109         return nitem;
1110 }
1111
1112 static WEditMenu *duplicateMenu(WEditMenu * menu)
1113 {
1114         WEditMenu *nmenu;
1115         WEditMenuItem *item;
1116         WMArrayIterator iter;
1117         Bool first = menu->flags.isTitled;
1118
1119         nmenu = WCreateEditMenu(WMWidgetScreen(menu), WGetEditMenuTitle(menu));
1120
1121         memcpy(&nmenu->flags, &menu->flags, sizeof(menu->flags));
1122         nmenu->delegate = menu->delegate;
1123
1124         WM_ITERATE_ARRAY(menu->items, item, iter) {
1125                 WEditMenuItem *nitem;
1126
1127                 if (first) {
1128                         first = False;
1129                         continue;
1130                 }
1131
1132                 nitem = WAddMenuItemWithTitle(nmenu, item->label);
1133                 if (item->pixmap)
1134                         WSetEditMenuItemImage(nitem, item->pixmap);
1135
1136                 if (menu->delegate && menu->delegate->itemCloned) {
1137                         (*menu->delegate->itemCloned) (menu->delegate, menu, item, nitem);
1138                 }
1139         }
1140
1141         WMRealizeWidget(nmenu);
1142
1143         return nmenu;
1144 }
1145
1146 static void dragItem(WEditMenu * menu, WEditMenuItem * item, Bool copy)
1147 {
1148         static XColor black = { 0, 0, 0, 0, DoRed | DoGreen | DoBlue, 0 };
1149         static XColor green = { 0x0045b045, 0x4500, 0xb000, 0x4500, DoRed | DoGreen | DoBlue, 0 };
1150         static XColor back = { 0, 0xffff, 0xffff, 0xffff, DoRed | DoGreen | DoBlue, 0 };
1151         Display *dpy = W_VIEW_DISPLAY(menu->view);
1152         WMScreen *scr = W_VIEW_SCREEN(menu->view);
1153         int x = 0, y = 0;
1154         int dx, dy;
1155         Bool done = False;
1156         Window blaw;
1157         int blai;
1158         unsigned blau;
1159         Window win;
1160         WMView *dview;
1161         int orix, oriy;
1162         Bool enteredMenu = False;
1163         WMSize oldSize = item->view->size;
1164         WEditMenuItem *dritem = item;
1165         WEditMenu *dmenu = NULL;
1166
1167         if (item->flags.isTitle) {
1168                 WMRaiseWidget(menu);
1169
1170                 dragMenu(menu);
1171
1172                 return;
1173         }
1174
1175         selectItem(menu, NULL);
1176
1177         win = scr->rootWin;
1178
1179         XTranslateCoordinates(dpy, W_VIEW_DRAWABLE(item->view), win, 0, 0, &orix, &oriy, &blaw);
1180
1181         dview = W_CreateUnmanagedTopView(scr);
1182         W_SetViewBackgroundColor(dview, scr->black);
1183         W_ResizeView(dview, W_VIEW_WIDTH(item->view), W_VIEW_HEIGHT(item->view));
1184         W_MoveView(dview, orix, oriy);
1185         W_RealizeView(dview);
1186
1187         if (menu->flags.isFactory || copy) {
1188                 dritem = duplicateItem(item);
1189
1190                 W_ReparentView(dritem->view, dview, 0, 0);
1191                 WMResizeWidget(dritem, oldSize.width, oldSize.height);
1192                 WMRealizeWidget(dritem);
1193                 WMMapWidget(dritem);
1194         } else {
1195                 W_ReparentView(item->view, dview, 0, 0);
1196         }
1197
1198         W_MapView(dview);
1199
1200         dx = menu->dragX - orix;
1201         dy = menu->dragY - oriy;
1202
1203         XGrabPointer(dpy, scr->rootWin, False,
1204                      ButtonPressMask | ButtonReleaseMask | ButtonMotionMask,
1205                      GrabModeAsync, GrabModeAsync, None, scr->defaultCursor, CurrentTime);
1206
1207         if (menu->flags.acceptsDrop)
1208                 XRecolorCursor(dpy, scr->defaultCursor, &green, &back);
1209
1210         while (!done) {
1211                 XEvent ev;
1212
1213                 WMNextEvent(dpy, &ev);
1214
1215                 switch (ev.type) {
1216                 case MotionNotify:
1217                         while (XCheckMaskEvent(dpy, ButtonMotionMask, &ev)) ;
1218
1219                         XQueryPointer(dpy, win, &blaw, &blaw, &blai, &blai, &x, &y, &blau);
1220
1221                         dmenu = findMenuInWindow(dpy, win, x, y);
1222
1223                         if (dmenu) {
1224                                 handleDragOver(dmenu, dview, dritem, y - dy);
1225                                 if (!enteredMenu) {
1226                                         enteredMenu = True;
1227                                         XRecolorCursor(dpy, scr->defaultCursor, &green, &back);
1228                                 }
1229                         } else {
1230                                 if (enteredMenu) {
1231                                         W_ResizeView(dview, oldSize.width, oldSize.height);
1232                                         W_ResizeView(dritem->view, oldSize.width, oldSize.height);
1233                                         enteredMenu = False;
1234                                         XRecolorCursor(dpy, scr->defaultCursor, &black, &back);
1235                                 }
1236                                 W_MoveView(dview, x - dx, y - dy);
1237                         }
1238
1239                         break;
1240
1241                 case ButtonRelease:
1242                         done = True;
1243                         break;
1244
1245                 default:
1246                         WMHandleEvent(&ev);
1247                         break;
1248                 }
1249         }
1250         XRecolorCursor(dpy, scr->defaultCursor, &black, &back);
1251
1252         XUngrabPointer(dpy, CurrentTime);
1253
1254         if (!enteredMenu) {
1255                 Bool rem = True;
1256
1257                 if (!menu->flags.isFactory && !copy) {
1258                         W_UnmapView(dview);
1259                         if (menu->delegate && menu->delegate->shouldRemoveItem) {
1260                                 rem = (*menu->delegate->shouldRemoveItem) (menu->delegate, menu, item);
1261                         }
1262                         W_MapView(dview);
1263                 }
1264
1265                 if (!rem || menu->flags.isFactory || copy) {
1266                         slideWindow(dpy, W_VIEW_DRAWABLE(dview), x - dx, y - dy, orix, oriy);
1267
1268                         if (!menu->flags.isFactory && !copy) {
1269                                 WRemoveEditMenuItem(menu, dritem);
1270                                 handleItemDrop(dmenu ? dmenu : menu, dritem, oriy);
1271                         }
1272                 } else {
1273                         WRemoveEditMenuItem(menu, dritem);
1274                 }
1275         } else {
1276                 WRemoveEditMenuItem(menu, dritem);
1277
1278                 if (menu->delegate && menu->delegate->itemCloned && (menu->flags.isFactory || copy)) {
1279                         (*menu->delegate->itemCloned) (menu->delegate, menu, item, dritem);
1280                 }
1281
1282                 handleItemDrop(dmenu, dritem, y - dy);
1283
1284                 if (item->submenu && (menu->flags.isFactory || copy)) {
1285                         WEditMenu *submenu;
1286
1287                         submenu = duplicateMenu(item->submenu);
1288                         WSetEditMenuSubmenu(dmenu, dritem, submenu);
1289                 }
1290         }
1291
1292         /* can't destroy now because we're being called from
1293          * the event handler of the item. and destroying now,
1294          * would mean destroying the item too in some cases.
1295          */
1296         WMAddIdleHandler((WMCallback *) W_DestroyView, dview);
1297 }
1298
1299 static void handleItemClick(XEvent * event, void *data)
1300 {
1301         WEditMenuItem *item = (WEditMenuItem *) data;
1302         WEditMenu *menu = item->parent;
1303
1304         switch (event->type) {
1305         case ButtonPress:
1306                 selectItem(menu, item);
1307
1308                 if (WMIsDoubleClick(event)) {
1309                         editItemLabel(item);
1310                 }
1311
1312                 menu->flags.isDragging = 1;
1313                 menu->dragX = event->xbutton.x_root;
1314                 menu->dragY = event->xbutton.y_root;
1315                 break;
1316
1317         case ButtonRelease:
1318                 menu->flags.isDragging = 0;
1319                 break;
1320
1321         case MotionNotify:
1322                 if (menu->flags.isDragging) {
1323                         if (abs(event->xbutton.x_root - menu->dragX) > 5
1324                             || abs(event->xbutton.y_root - menu->dragY) > 5) {
1325                                 menu->flags.isDragging = 0;
1326                                 dragItem(menu, item, event->xbutton.state & ControlMask);
1327                         }
1328                 }
1329                 break;
1330         }
1331 }
1332
1333 static void destroyEditMenu(WEditMenu * mPtr)
1334 {
1335         WMRemoveNotificationObserver(mPtr);
1336
1337         WMFreeArray(mPtr->items);
1338
1339         wfree(mPtr->tdelegate);
1340
1341         wfree(mPtr);
1342 }