#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "xmenu.h" /* * Function declarations */ /* argument parser */ static void parseposition(char *optarg); /* initializers, and their helper routines */ static void parsefonts(const char *s); static void ealloccolor(const char *s, XftColor *color); static void initmonitor(void); static void initresources(void); static void initdc(void); static void initiconsize(void); static void initatoms(void); /* structure builders, and their helper routines */ static struct Item *allocitem(const char *label, const char *output, char *file); static struct Menu *allocmenu(struct Menu *parent, struct Item *list, unsigned level); static struct Menu *buildmenutree(unsigned level, const char *label, const char *output, char *file); static struct Menu *parsestdin(void); /* text drawer, and its helper routine */ static FcChar32 getnextutf8char(const char *s, const char **end_ret); static XftFont *getfontucode(FcChar32 ucode); static int drawtext(XftDraw *draw, XftColor *color, int x, int y, unsigned h, const char *text); /* structure setters, and their helper routines */ static void setupitems(struct Menu *menu); static void setupmenupos(struct Menu *menu); static void setupmenu(struct Menu *menu, XClassHint *classh); /* grabbers */ static void grabpointer(void); static void grabkeyboard(void); /* item drawer, and its helper routine */ static Imlib_Image loadicon(const char *file); static void drawitems(struct Menu *menu); /* menu drawers and mappers */ static void drawmenus(struct Menu *currmenu); static void mapmenu(struct Menu *currmenu); /* getters */ static struct Menu *getmenu(struct Menu *currmenu, Window win); static struct Item *getitem(struct Menu *menu, int y); /* cycle through items */ static struct Item *itemcycle(struct Menu *currmenu, int direction); /* main event loop */ static void run(struct Menu *currmenu); /* cleaners */ static void cleanmenu(struct Menu *menu); static void cleanup(void); /* show usage */ static void usage(void); /* * Variable declarations */ /* X stuff */ static Display *dpy; static int screen; static Visual *visual; static Window rootwin; static Colormap colormap; static struct DC dc; static struct Monitor mon; static Atom utf8string; static Atom wmdelete; static Atom netatom[NetLast]; /* flags */ static int iflag = 0; /* whether to disable icons */ static int mflag = 0; /* whether the user specified a monitor with -p */ static int pflag = 0; /* whether the user specified a position with -p */ static int wflag = 0; /* whether to let the window manager control XMenu */ /* include config variable */ #include "config.h" /* * Function implementations */ /* xmenu: generate menu from stdin and print selected entry to stdout */ int main(int argc, char *argv[]) { struct Menu *rootmenu; XClassHint classh; int ch; while ((ch = getopt(argc, argv, "ip:w")) != -1) { switch (ch) { case 'i': iflag = 1; break; case 'p': pflag = 1; parseposition(optarg); break; case 'w': wflag = 1; break; default: usage(); break; } } argc -= optind; argv += optind; if (argc > 1) usage(); /* open connection to server and set X variables */ if ((dpy = XOpenDisplay(NULL)) == NULL) errx(1, "could not open display"); screen = DefaultScreen(dpy); visual = DefaultVisual(dpy, screen); rootwin = RootWindow(dpy, screen); colormap = DefaultColormap(dpy, screen); /* imlib2 stuff */ if (!iflag) { imlib_set_cache_size(2048 * 1024); imlib_context_set_dither(1); imlib_context_set_display(dpy); imlib_context_set_visual(visual); imlib_context_set_colormap(colormap); } /* initializers */ initmonitor(); initresources(); initdc(); initiconsize(); initatoms(); /* set window class */ classh.res_class = PROGNAME; if (argc == 1) classh.res_name = *argv; else classh.res_name = PROGNAME; /* generate menus and set them up */ rootmenu = parsestdin(); if (rootmenu == NULL) errx(1, "no menu generated"); setupmenu(rootmenu, &classh); /* grab mouse and keyboard */ if (!wflag) { grabpointer(); grabkeyboard(); } /* run event loop */ run(rootmenu); /* freeing stuff */ cleanmenu(rootmenu); cleanup(); return 0; } /* parse position string from -p, * put results on config.posx, config.posy, and config.monitor */ static void parseposition(char *optarg) { long n; char *s = optarg; char *endp; n = strtol(s, &endp, 10); if (errno == ERANGE || n > INT_MAX || n < 0 || endp == s || *endp != 'x') goto error; config.posx = n; s = endp+1; n = strtol(s, &endp, 10); if (errno == ERANGE || n > INT_MAX || n < 0 || endp == s) goto error; config.posy = n; if (*endp == ':') { s = endp+1; mflag = 1; if (strncasecmp(s, "CUR", 3) == 0) { config.monitor = -1; endp = s+3; } else { n = strtol(s, &endp, 10); if (errno == ERANGE || n > INT_MAX || n < 0 || endp == s || *endp != '\0') goto error; config.monitor = n; } } else if (*endp != '\0') { goto error; } return; error: errx(1, "improper position: %s", optarg); } /* parse color string */ static void parsefonts(const char *s) { const char *p; char buf[1024]; size_t nfont = 0; dc.nfonts = 1; for (p = s; *p; p++) if (*p == ',') dc.nfonts++; if ((dc.fonts = calloc(dc.nfonts, sizeof *dc.fonts)) == NULL) err(1, "calloc"); p = s; while (*p != '\0') { size_t i; i = 0; while (isspace(*p)) p++; while (i < sizeof buf && *p != '\0' && *p != ',') buf[i++] = *p++; if (i >= sizeof buf) errx(1, "font name too long"); if (*p == ',') p++; buf[i] = '\0'; if (nfont == 0) if ((dc.pattern = FcNameParse((FcChar8 *)buf)) == NULL) errx(1, "the first font in the cache must be loaded from a font string"); if ((dc.fonts[nfont++] = XftFontOpenName(dpy, screen, buf)) == NULL) errx(1, "could not load font"); } } /* get color from color string */ static void ealloccolor(const char *s, XftColor *color) { if(!XftColorAllocName(dpy, visual, colormap, s, color)) errx(1, "could not allocate color: %s", s); } /* query monitor information and cursor position */ static void initmonitor(void) { XineramaScreenInfo *info = NULL; Window dw; /* dummy variable */ int di; /* dummy variable */ unsigned du; /* dummy variable */ int cursx, cursy; /* cursor position */ int nmons; int i; XQueryPointer(dpy, rootwin, &dw, &dw, &cursx, &cursy, &di, &di, &du); mon.x = mon.y = 0; mon.w = DisplayWidth(dpy, screen); mon.h = DisplayHeight(dpy, screen); if ((info = XineramaQueryScreens(dpy, &nmons)) != NULL) { int selmon = 0; if (!mflag || config.monitor < 0 || config.monitor >= nmons) { for (i = 0; i < nmons; i++) { if (BETWEEN(cursx, info[i].x_org, info[i].x_org + info[i].width) && BETWEEN(cursy, info[i].y_org, info[i].y_org + info[i].height)) { selmon = i; break; } } } else { selmon = config.monitor; } mon.x = info[selmon].x_org; mon.y = info[selmon].y_org; mon.w = info[selmon].width; mon.h = info[selmon].height; } if (!pflag) { config.posx = cursx; config.posy = cursy; } else if (mflag) { config.posx += mon.x; config.posy += mon.y; } } /* read xrdb for configuration options */ static void initresources(void) { char *xrm; long n; char *type; XrmDatabase xdb; XrmValue xval; XrmInitialize(); if ((xrm = XResourceManagerString(dpy)) == NULL) return; xdb = XrmGetStringDatabase(xrm); if (XrmGetResource(xdb, "xmenu.borderWidth", "*", &type, &xval) == True) if ((n = strtol(xval.addr, NULL, 10)) > 0) config.border_pixels = n; if (XrmGetResource(xdb, "xmenu.separatorWidth", "*", &type, &xval) == True) if ((n = strtol(xval.addr, NULL, 10)) > 0) config.separator_pixels = n; if (XrmGetResource(xdb, "xmenu.height", "*", &type, &xval) == True) if ((n = strtol(xval.addr, NULL, 10)) > 0) config.height_pixels = n; if (XrmGetResource(xdb, "xmenu.width", "*", &type, &xval) == True) if ((n = strtol(xval.addr, NULL, 10)) > 0) config.width_pixels = n; if (XrmGetResource(xdb, "xmenu.gap", "*", &type, &xval) == True) if ((n = strtol(xval.addr, NULL, 10)) > 0) config.gap_pixels = n; if (XrmGetResource(xdb, "xmenu.background", "*", &type, &xval) == True) config.background_color = strdup(xval.addr); if (XrmGetResource(xdb, "xmenu.foreground", "*", &type, &xval) == True) config.foreground_color = strdup(xval.addr); if (XrmGetResource(xdb, "xmenu.selbackground", "*", &type, &xval) == True) config.selbackground_color = strdup(xval.addr); if (XrmGetResource(xdb, "xmenu.selforeground", "*", &type, &xval) == True) config.selforeground_color = strdup(xval.addr); if (XrmGetResource(xdb, "xmenu.separator", "*", &type, &xval) == True) config.separator_color = strdup(xval.addr); if (XrmGetResource(xdb, "xmenu.border", "*", &type, &xval) == True) config.border_color = strdup(xval.addr); if (XrmGetResource(xdb, "xmenu.font", "*", &type, &xval) == True) config.font = strdup(xval.addr); XrmDestroyDatabase(xdb); } /* init draw context */ static void initdc(void) { /* get color pixels */ ealloccolor(config.background_color, &dc.normal[ColorBG]); ealloccolor(config.foreground_color, &dc.normal[ColorFG]); ealloccolor(config.selbackground_color, &dc.selected[ColorBG]); ealloccolor(config.selforeground_color, &dc.selected[ColorFG]); ealloccolor(config.separator_color, &dc.separator); ealloccolor(config.border_color, &dc.border); /* parse fonts */ parsefonts(config.font); /* create common GC */ dc.gc = XCreateGC(dpy, rootwin, 0, NULL); } /* calculate icon size */ static void initiconsize(void) { config.iconsize = config.height_pixels - config.iconpadding * 2; } /* intern atoms */ static void initatoms(void) { utf8string = XInternAtom(dpy, "UTF8_STRING", False); wmdelete = XInternAtom(dpy, "WM_DELETE_WINDOW", False); netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False); netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False); netatom[NetWMWindowTypePopupMenu] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_POPUP_MENU", False); } /* allocate an item */ static struct Item * allocitem(const char *label, const char *output, char *file) { struct Item *item; if ((item = malloc(sizeof *item)) == NULL) err(1, "malloc"); if (label == NULL) { item->label = NULL; item->output = NULL; } else { if ((item->label = strdup(label)) == NULL) err(1, "strdup"); if (label == output) { item->output = item->label; } else { if ((item->output = strdup(output)) == NULL) err(1, "strdup"); } } if (file == NULL) { item->file = NULL; } else { if ((item->file = strdup(file)) == NULL) err(1, "strdup"); } item->y = 0; item->h = 0; item->next = NULL; item->submenu = NULL; item->icon = NULL; return item; } /* allocate a menu and create its window */ static struct Menu * allocmenu(struct Menu *parent, struct Item *list, unsigned level) { XSetWindowAttributes swa; struct Menu *menu; if ((menu = malloc(sizeof *menu)) == NULL) err(1, "malloc"); menu->parent = parent; menu->list = list; menu->caller = NULL; menu->selected = NULL; menu->w = 0; /* recalculated by setupmenu() */ menu->h = 0; /* recalculated by setupmenu() */ menu->x = mon.x; /* recalculated by setupmenu() */ menu->y = mon.y; /* recalculated by setupmenu() */ menu->level = level; menu->drawn = 0; menu->hasicon = 0; swa.override_redirect = (wflag) ? False : True; swa.background_pixel = dc.normal[ColorBG].pixel; swa.border_pixel = dc.border.pixel; swa.save_under = True; /* pop-up windows should save_under*/ swa.event_mask = ExposureMask | KeyPressMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask | LeaveWindowMask; if (wflag) swa.event_mask |= StructureNotifyMask; menu->win = XCreateWindow(dpy, rootwin, 0, 0, 1, 1, 0, CopyFromParent, CopyFromParent, CopyFromParent, CWOverrideRedirect | CWBackPixel | CWBorderPixel | CWEventMask | CWSaveUnder, &swa); return menu; } /* build the menu tree */ static struct Menu * buildmenutree(unsigned level, const char *label, const char *output, char *file) { static struct Menu *prevmenu = NULL; /* menu the previous item was added to */ static struct Menu *rootmenu = NULL; /* menu to be returned */ struct Item *curritem = NULL; /* item currently being read */ struct Item *item; /* dummy item for loops */ struct Menu *menu; /* dummy menu for loops */ unsigned i; /* create the item */ curritem = allocitem(label, output, file); /* put the item in the menu tree */ if (prevmenu == NULL) { /* there is no menu yet */ menu = allocmenu(NULL, curritem, level); rootmenu = menu; prevmenu = menu; curritem->prev = NULL; } else if (level < prevmenu->level) { /* item is continuation of a parent menu */ /* go up the menu tree until find the menu this item continues */ for (menu = prevmenu, i = level; menu != NULL && i != prevmenu->level; menu = menu->parent, i++) ; if (menu == NULL) errx(1, "reached NULL menu"); /* find last item in the new menu */ for (item = menu->list; item->next != NULL; item = item->next) ; prevmenu = menu; item->next = curritem; curritem->prev = item; } else if (level == prevmenu->level) { /* item is a continuation of current menu */ /* find last item in the previous menu */ for (item = prevmenu->list; item->next != NULL; item = item->next) ; item->next = curritem; curritem->prev = item; } else if (level > prevmenu->level) { /* item begins a new menu */ menu = allocmenu(prevmenu, curritem, level); /* find last item in the previous menu */ for (item = prevmenu->list; item->next != NULL; item = item->next) ; prevmenu = menu; menu->caller = item; item->submenu = menu; curritem->prev = NULL; } if (curritem->file) prevmenu->hasicon = 1; return rootmenu; } /* create menus and items from the stdin */ static struct Menu * parsestdin(void) { struct Menu *rootmenu; char *s, buf[BUFSIZ]; char *file, *label, *output; unsigned level = 0; rootmenu = NULL; while (fgets(buf, BUFSIZ, stdin) != NULL) { /* get the indentation level */ level = strspn(buf, "\t"); /* get the label */ s = level + buf; label = strtok(s, "\t\n"); /* get the filename */ file = NULL; if (label != NULL && strncmp(label, "IMG:", 4) == 0) { file = label + 4; label = strtok(NULL, "\t\n"); } /* get the output */ output = strtok(NULL, "\n"); if (output == NULL) { output = label; } else { while (*output == '\t') output++; } rootmenu = buildmenutree(level, label, output, file); } return rootmenu; } /* get next utf8 char from s return its codepoint and set next_ret to pointer to end of character */ static FcChar32 getnextutf8char(const char *s, const char **next_ret) { static const unsigned char utfbyte[] = {0x80, 0x00, 0xC0, 0xE0, 0xF0}; static const unsigned char utfmask[] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8}; static const FcChar32 utfmin[] = {0, 0x00, 0x80, 0x800, 0x10000}; static const FcChar32 utfmax[] = {0, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF}; /* 0xFFFD is the replacement character, used to represent unknown characters */ static const FcChar32 unknown = 0xFFFD; FcChar32 ucode; /* FcChar32 type holds 32 bits */ size_t usize = 0; /* n' of bytes of the utf8 character */ size_t i; *next_ret = s+1; /* get code of first byte of utf8 character */ for (i = 0; i < sizeof utfmask; i++) { if (((unsigned char)*s & utfmask[i]) == utfbyte[i]) { usize = i; ucode = (unsigned char)*s & ~utfmask[i]; break; } } /* if first byte is a continuation byte or is not allowed, return unknown */ if (i == sizeof utfmask || usize == 0) return unknown; /* check the other usize-1 bytes */ s++; for (i = 1; i < usize; i++) { *next_ret = s+1; /* if byte is nul or is not a continuation byte, return unknown */ if (*s == '\0' || ((unsigned char)*s & utfmask[0]) != utfbyte[0]) return unknown; /* 6 is the number of relevant bits in the continuation byte */ ucode = (ucode << 6) | ((unsigned char)*s & ~utfmask[0]); s++; } /* check if ucode is invalid or in utf-16 surrogate halves */ if (!BETWEEN(ucode, utfmin[usize], utfmax[usize]) || BETWEEN (ucode, 0xD800, 0xDFFF)) return unknown; return ucode; } /* get which font contains a given code point */ static XftFont * getfontucode(FcChar32 ucode) { FcCharSet *fccharset = NULL; FcPattern *fcpattern = NULL; FcPattern *match = NULL; XftFont *retfont = NULL; XftResult result; size_t i; for (i = 0; i < dc.nfonts; i++) if (XftCharExists(dpy, dc.fonts[i], ucode) == FcTrue) return dc.fonts[i]; /* create a charset containing our code point */ fccharset = FcCharSetCreate(); FcCharSetAddChar(fccharset, ucode); /* create a pattern akin to the dc.pattern but containing our charset */ if (fccharset) { fcpattern = FcPatternDuplicate(dc.pattern); FcPatternAddCharSet(fcpattern, FC_CHARSET, fccharset); } /* find pattern matching fcpattern */ if (fcpattern) { FcConfigSubstitute(NULL, fcpattern, FcMatchPattern); FcDefaultSubstitute(fcpattern); match = XftFontMatch(dpy, screen, fcpattern, &result); } /* if found a pattern, open its font */ if (match) { retfont = XftFontOpenPattern(dpy, match); if (retfont && XftCharExists(dpy, retfont, ucode) == FcTrue) { if ((dc.fonts = realloc(dc.fonts, dc.nfonts+1)) == NULL) err(1, "realloc"); dc.fonts[dc.nfonts] = retfont; return dc.fonts[dc.nfonts++]; } else { XftFontClose(dpy, retfont); } } /* in case no fount was found, return the first one */ return dc.fonts[0]; } /* draw text into XftDraw, return width of text glyphs */ static int drawtext(XftDraw *draw, XftColor *color, int x, int y, unsigned h, const char *text) { int textwidth = 0; while (*text) { XftFont *currfont; XGlyphInfo ext; FcChar32 ucode; const char *next; size_t len; ucode = getnextutf8char(text, &next); currfont = getfontucode(ucode); len = next - text; XftTextExtentsUtf8(dpy, currfont, (XftChar8 *)text, len, &ext); textwidth += ext.xOff; if (draw) { int texty; texty = y + (h - (currfont->ascent + currfont->descent))/2 + currfont->ascent; XftDrawStringUtf8(draw, color, currfont, x, texty, (XftChar8 *)text, len); x += ext.xOff; } text = next; } return textwidth; } /* setup the height, width and icon of the items of a menu */ static void setupitems(struct Menu *menu) { struct Item *item; menu->w = config.width_pixels; for (item = menu->list; item != NULL; item = item->next) { int itemwidth; int textwidth; item->y = menu->h; if (item->label == NULL) /* height for separator item */ item->h = config.separator_pixels; else item->h = config.height_pixels; menu->h += item->h; if (item->label) textwidth = drawtext(NULL, NULL, 0, 0, 0, item->label); else textwidth = 0; /* * set menu width * * the item width depends on the size of its label (textwidth), * and it is only used to calculate the width of the menu (which * is equal to the width of the largest item). * * the horizontal padding appears 4 times through the width of a * item: before and after its icon, and before and after its triangle. * if the iflag is set (icons are disabled) then the horizontal * padding appears 3 times: before the label and around the triangle. */ itemwidth = textwidth + config.triangle_width + config.horzpadding * 3; itemwidth += (iflag || !menu->hasicon) ? 0 : config.iconsize + config.horzpadding; menu->w = MAX(menu->w, itemwidth); } } /* setup the position of a menu */ static void setupmenupos(struct Menu *menu) { int width, height; width = menu->w + config.border_pixels * 2; height = menu->h + config.border_pixels * 2; if (menu->parent == NULL) { /* if root menu, calculate in respect to cursor */ if (pflag || (config.posx > mon.x && mon.x + mon.w - config.posx >= width)) menu->x = config.posx; else if (config.posx > width) menu->x = config.posx - width; if (pflag || (config.posy > mon.y && mon.y + mon.h - config.posy >= height)) menu->y = config.posy; else if (mon.y + mon.h > height) menu->y = mon.y + mon.h - height; } else { /* else, calculate in respect to parent menu */ int parentwidth; parentwidth = menu->parent->x + menu->parent->w + config.border_pixels + config.gap_pixels; if (mon.x + mon.w - parentwidth >= width) menu->x = parentwidth; else if (menu->parent->x > menu->w + config.border_pixels + config.gap_pixels) menu->x = menu->parent->x - menu->w - config.border_pixels - config.gap_pixels; if (mon.y + mon.h - (menu->caller->y + menu->parent->y) >= height) menu->y = menu->caller->y + menu->parent->y; else if (mon.y + mon.h > height) menu->y = mon.y + mon.h - height; } } /* recursivelly setup menu configuration and its pixmap */ static void setupmenu(struct Menu *menu, XClassHint *classh) { char *title; struct Item *item; XWindowChanges changes; XSizeHints sizeh; XTextProperty wintitle; /* setup size and position of menus */ setupitems(menu); setupmenupos(menu); /* update menu geometry */ changes.border_width = config.border_pixels; changes.height = menu->h; changes.width = menu->w; changes.x = menu->x; changes.y = menu->y; XConfigureWindow(dpy, menu->win, CWBorderWidth | CWWidth | CWHeight | CWX | CWY, &changes); /* set window title (used if wflag is on) */ if (menu->parent == NULL) { title = classh->res_name; } else { title = menu->caller->output; } XStringListToTextProperty(&title, 1, &wintitle); /* set window manager hints */ sizeh.flags = USPosition | PMaxSize | PMinSize; sizeh.min_width = sizeh.max_width = menu->w; sizeh.min_height = sizeh.max_height = menu->h; XSetWMProperties(dpy, menu->win, &wintitle, NULL, NULL, 0, &sizeh, NULL, classh); /* set WM protocols and ewmh window properties */ XSetWMProtocols(dpy, menu->win, &wmdelete, 1); XChangeProperty(dpy, menu->win, netatom[NetWMName], utf8string, 8, PropModeReplace, (unsigned char *)title, strlen(title)); XChangeProperty(dpy, menu->win, netatom[NetWMWindowType], XA_ATOM, 32, PropModeReplace, (unsigned char *)&netatom[NetWMWindowTypePopupMenu], 1); /* calculate positions of submenus */ for (item = menu->list; item != NULL; item = item->next) { if (item->submenu != NULL) setupmenu(item->submenu, classh); } } /* try to grab pointer, we may have to wait for another process to ungrab */ static void grabpointer(void) { struct timespec ts = { .tv_sec = 0, .tv_nsec = 1000000 }; int i; for (i = 0; i < 1000; i++) { if (XGrabPointer(dpy, rootwin, True, ButtonPressMask, GrabModeAsync, GrabModeAsync, None, None, CurrentTime) == GrabSuccess) return; nanosleep(&ts, NULL); } errx(1, "could not grab keyboard"); } /* try to grab keyboard, we may have to wait for another process to ungrab */ static void grabkeyboard(void) { struct timespec ts = { .tv_sec = 0, .tv_nsec = 1000000 }; int i; for (i = 0; i < 1000; i++) { if (XGrabKeyboard(dpy, rootwin, True, GrabModeAsync, GrabModeAsync, CurrentTime) == GrabSuccess) return; nanosleep(&ts, NULL); } errx(1, "could not grab keyboard"); } /* load and scale icon */ static Imlib_Image loadicon(const char *file) { Imlib_Image icon; int width; int height; int imgsize; icon = imlib_load_image(file); if (icon == NULL) errx(1, "could not load icon %s", file); imlib_context_set_image(icon); width = imlib_image_get_width(); height = imlib_image_get_height(); imgsize = MIN(width, height); icon = imlib_create_cropped_scaled_image(0, 0, imgsize, imgsize, config.iconsize, config.iconsize); return icon; } /* draw pixmap for the selected and unselected version of each item on menu */ static void drawitems(struct Menu *menu) { struct Item *item; for (item = menu->list; item != NULL; item = item->next) { XftDraw *dsel, *dunsel; int x, y; item->unsel = XCreatePixmap(dpy, menu->win, menu->w, item->h, DefaultDepth(dpy, screen)); XSetForeground(dpy, dc.gc, dc.normal[ColorBG].pixel); XFillRectangle(dpy, item->unsel, dc.gc, 0, 0, menu->w, item->h); if (item->label == NULL) { /* item is separator */ y = item->h/2; XSetForeground(dpy, dc.gc, dc.separator.pixel); XDrawLine(dpy, item->unsel, dc.gc, config.horzpadding, y, menu->w - config.horzpadding, y); item->sel = item->unsel; } else { item->sel = XCreatePixmap(dpy, menu->win, menu->w, item->h, DefaultDepth(dpy, screen)); XSetForeground(dpy, dc.gc, dc.selected[ColorBG].pixel); XFillRectangle(dpy, item->sel, dc.gc, 0, 0, menu->w, item->h); /* draw text */ x = config.horzpadding; x += (iflag || !menu->hasicon) ? 0 : config.horzpadding + config.iconsize; dsel = XftDrawCreate(dpy, item->sel, visual, colormap); dunsel = XftDrawCreate(dpy, item->unsel, visual, colormap); XSetForeground(dpy, dc.gc, dc.selected[ColorFG].pixel); drawtext(dsel, &dc.selected[ColorFG], x, 0, item->h, item->label); XSetForeground(dpy, dc.gc, dc.normal[ColorFG].pixel); drawtext(dunsel, &dc.normal[ColorFG], x, 0, item->h, item->label); XftDrawDestroy(dsel); XftDrawDestroy(dunsel); /* draw triangle */ if (item->submenu != NULL) { x = menu->w - config.triangle_width - config.horzpadding; y = (item->h - config.triangle_height + 1) / 2; XPoint triangle[] = { {x, y}, {x + config.triangle_width, y + config.triangle_height/2}, {x, y + config.triangle_height}, {x, y} }; XSetForeground(dpy, dc.gc, dc.selected[ColorFG].pixel); XFillPolygon(dpy, item->sel, dc.gc, triangle, LEN(triangle), Convex, CoordModeOrigin); XSetForeground(dpy, dc.gc, dc.normal[ColorFG].pixel); XFillPolygon(dpy, item->unsel, dc.gc, triangle, LEN(triangle), Convex, CoordModeOrigin); } /* draw icon */ if (item->file != NULL && !iflag) { item->icon = loadicon(item->file); imlib_context_set_image(item->icon); imlib_context_set_drawable(item->sel); imlib_render_image_on_drawable(config.horzpadding, config.iconpadding); imlib_context_set_drawable(item->unsel); imlib_render_image_on_drawable(config.horzpadding, config.iconpadding); } } } } /* copy pixmaps of items of the current menu and of its ancestors into menu window */ static void drawmenus(struct Menu *currmenu) { struct Menu *menu; struct Item *item; for (menu = currmenu; menu != NULL; menu = menu->parent) { if (!menu->drawn) { drawitems(menu); menu->drawn = 1; } for (item = menu->list; item != NULL; item = item->next) { if (item == menu->selected) XCopyArea(dpy, item->sel, menu->win, dc.gc, 0, 0, menu->w, item->h, 0, item->y); else XCopyArea(dpy, item->unsel, menu->win, dc.gc, 0, 0, menu->w, item->h, 0, item->y); } } } /* umap previous menus and map current menu and its parents */ static void mapmenu(struct Menu *currmenu) { static struct Menu *prevmenu = NULL; struct Menu *menu, *menu_; struct Menu *lcamenu; /* lowest common ancestor menu */ unsigned minlevel; /* level of the closest to root menu */ unsigned maxlevel; /* level of the closest to root menu */ /* do not remap current menu if it wasn't updated*/ if (prevmenu == currmenu) return; /* if this is the first time mapping, skip calculations */ if (prevmenu == NULL) { XMapWindow(dpy, currmenu->win); prevmenu = currmenu; return; } /* find lowest common ancestor menu */ minlevel = MIN(currmenu->level, prevmenu->level); maxlevel = MAX(currmenu->level, prevmenu->level); if (currmenu->level == maxlevel) { menu = currmenu; menu_ = prevmenu; } else { menu = prevmenu; menu_ = currmenu; } while (menu->level > minlevel) menu = menu->parent; while (menu != menu_) { menu = menu->parent; menu_ = menu_->parent; } lcamenu = menu; /* unmap menus from currmenu (inclusive) until lcamenu (exclusive) */ for (menu = prevmenu; menu != lcamenu; menu = menu->parent) { menu->selected = NULL; XUnmapWindow(dpy, menu->win); } /* map menus from currmenu (inclusive) until lcamenu (exclusive) */ for (menu = currmenu; menu != lcamenu; menu = menu->parent) { if (wflag) { setupmenupos(menu); XMoveWindow(dpy, menu->win, menu->x, menu->y); } XMapWindow(dpy, menu->win); } prevmenu = currmenu; } /* get menu of given window */ static struct Menu * getmenu(struct Menu *currmenu, Window win) { struct Menu *menu; for (menu = currmenu; menu != NULL; menu = menu->parent) if (menu->win == win) return menu; return NULL; } /* get item of given menu and position */ static struct Item * getitem(struct Menu *menu, int y) { struct Item *item; if (menu == NULL) return NULL; for (item = menu->list; item != NULL; item = item->next) if (y >= item->y && y <= item->y + item->h) return item; return NULL; } /* cycle through the items; non-zero direction is next, zero is prev */ static struct Item * itemcycle(struct Menu *currmenu, int direction) { struct Item *item; struct Item *lastitem; item = NULL; if (direction == ITEMNEXT) { if (currmenu->selected == NULL) item = currmenu->list; else if (currmenu->selected->next != NULL) item = currmenu->selected->next; while (item != NULL && item->label == NULL) item = item->next; if (item == NULL) item = currmenu->list; } else { for (lastitem = currmenu->list; lastitem != NULL && lastitem->next != NULL; lastitem = lastitem->next) ; if (currmenu->selected == NULL) item = lastitem; else if (currmenu->selected->prev != NULL) item = currmenu->selected->prev; while (item != NULL && item->label == NULL) item = item->prev; if (item == NULL) item = lastitem; } return item; } /* run event loop */ static void run(struct Menu *currmenu) { struct Menu *menu; struct Item *item; struct Item *previtem = NULL; KeySym ksym; XEvent ev; mapmenu(currmenu); while (!XNextEvent(dpy, &ev)) { switch(ev.type) { case Expose: if (ev.xexpose.count == 0) drawmenus(currmenu); break; case MotionNotify: menu = getmenu(currmenu, ev.xbutton.window); item = getitem(menu, ev.xbutton.y); if (menu == NULL || item == NULL || previtem == item) break; previtem = item; menu->selected = item; if (item->submenu != NULL) { currmenu = item->submenu; currmenu->selected = NULL; } else { currmenu = menu; } mapmenu(currmenu); drawmenus(currmenu); break; case ButtonRelease: menu = getmenu(currmenu, ev.xbutton.window); item = getitem(menu, ev.xbutton.y); if (menu == NULL || item == NULL) break; selectitem: if (item->label == NULL) break; /* ignore separators */ if (item->submenu != NULL) { currmenu = item->submenu; } else { printf("%s\n", item->output); return; } mapmenu(currmenu); currmenu->selected = currmenu->list; drawmenus(currmenu); break; case ButtonPress: menu = getmenu(currmenu, ev.xbutton.window); if (menu == NULL) return; break; case KeyPress: ksym = XkbKeycodeToKeysym(dpy, ev.xkey.keycode, 0, 0); /* esc closes xmenu when current menu is the root menu */ if (ksym == XK_Escape && currmenu->parent == NULL) return; /* Shift-Tab = ISO_Left_Tab */ if (ksym == XK_Tab && (ev.xkey.state & ShiftMask)) ksym = XK_ISO_Left_Tab; /* cycle through menu */ item = NULL; if (ksym == XK_ISO_Left_Tab || ksym == XK_Up) { item = itemcycle(currmenu, ITEMPREV); } else if (ksym == XK_Tab || ksym == XK_Down) { item = itemcycle(currmenu, ITEMNEXT); } else if ((ksym == XK_Return || ksym == XK_Right) && currmenu->selected != NULL) { item = currmenu->selected; goto selectitem; } else if ((ksym == XK_Escape || ksym == XK_Left) && currmenu->parent != NULL) { item = currmenu->parent->selected; currmenu = currmenu->parent; mapmenu(currmenu); } else break; currmenu->selected = item; drawmenus(currmenu); break; case LeaveNotify: previtem = NULL; currmenu->selected = NULL; drawmenus(currmenu); break; case ConfigureNotify: menu = getmenu(currmenu, ev.xconfigure.window); if (menu == NULL) break; menu->x = ev.xconfigure.x; menu->y = ev.xconfigure.y; break; case ClientMessage: if ((unsigned long) ev.xclient.data.l[0] != wmdelete) break; /* user closed window */ menu = getmenu(currmenu, ev.xclient.window); if (menu->parent == NULL) return; /* closing the root menu closes the program */ currmenu = menu->parent; mapmenu(currmenu); break; } } } /* recursivelly free pixmaps and destroy windows */ static void cleanmenu(struct Menu *menu) { struct Item *item; struct Item *tmp; item = menu->list; while (item != NULL) { if (item->submenu != NULL) cleanmenu(item->submenu); tmp = item; if (menu->drawn) { XFreePixmap(dpy, item->unsel); if (tmp->label != NULL) XFreePixmap(dpy, item->sel); } if (tmp->label != tmp->output) free(tmp->label); free(tmp->output); if (tmp->file != NULL) { free(tmp->file); if (tmp->icon != NULL) { imlib_context_set_image(tmp->icon); imlib_free_image(); } } item = item->next; free(tmp); } XDestroyWindow(dpy, menu->win); free(menu); } /* cleanup X and exit */ static void cleanup(void) { size_t i; XUngrabPointer(dpy, CurrentTime); XUngrabKeyboard(dpy, CurrentTime); XftColorFree(dpy, visual, colormap, &dc.normal[ColorBG]); XftColorFree(dpy, visual, colormap, &dc.normal[ColorFG]); XftColorFree(dpy, visual, colormap, &dc.selected[ColorBG]); XftColorFree(dpy, visual, colormap, &dc.selected[ColorFG]); XftColorFree(dpy, visual, colormap, &dc.separator); XftColorFree(dpy, visual, colormap, &dc.border); for (i = 0; i < dc.nfonts; i++) XftFontClose(dpy, dc.fonts[i]); XFreeGC(dpy, dc.gc); XCloseDisplay(dpy); } /* show usage */ static void usage(void) { (void)fprintf(stderr, "usage: xmenu [-iw] [-p position] [title]\n"); exit(1); }