diff options
Diffstat (limited to 'main.c')
| -rw-r--r-- | main.c | 578 |
1 files changed, 0 insertions, 578 deletions
@@ -1,578 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include "dmenu.h" -#include <ctype.h> -#include <locale.h> -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> -#include <X11/Xutil.h> -#include <X11/keysym.h> - -#define CLEANMASK(mask) (mask & ~(numlockmask | LockMask)) - -typedef struct Item Item; -struct Item { - Item *next; /* traverses all items */ - Item *left, *right; /* traverses items matching current search pattern */ - char *text; -}; - -/* static */ - -static char text[4096]; -static char *prompt = NULL; -static int mw, mh; -static int ret = 0; -static int nitem = 0; -static unsigned int cmdw = 0; -static unsigned int promptw = 0; -static unsigned int numlockmask = 0; -static Bool running = True; -static Item *allitems = NULL; /* first of all items */ -static Item *item = NULL; /* first of pattern matching items */ -static Item *sel = NULL; -static Item *next = NULL; -static Item *prev = NULL; -static Item *curr = NULL; -static Window root; -static Window win; - -static void -calcoffsets(void) { - unsigned int tw, w; - - if(!curr) - return; - w = promptw + cmdw + 2 * SPACE; - for(next = curr; next; next=next->right) { - tw = textw(next->text); - if(tw > mw / 3) - tw = mw / 3; - w += tw; - if(w > mw) - break; - } - w = promptw + cmdw + 2 * SPACE; - for(prev = curr; prev && prev->left; prev=prev->left) { - tw = textw(prev->left->text); - if(tw > mw / 3) - tw = mw / 3; - w += tw; - if(w > mw) - break; - } -} - -static void -drawmenu(void) { - Item *i; - - dc.x = 0; - dc.y = 0; - dc.w = mw; - dc.h = mh; - drawtext(NULL, dc.norm); - /* print prompt? */ - if(promptw) { - dc.w = promptw; - drawtext(prompt, dc.sel); - } - dc.x += promptw; - dc.w = mw - promptw; - /* print command */ - if(cmdw && item) - dc.w = cmdw; - drawtext(text[0] ? text : NULL, dc.norm); - dc.x += cmdw; - if(curr) { - dc.w = SPACE; - drawtext((curr && curr->left) ? "<" : NULL, dc.norm); - dc.x += dc.w; - /* determine maximum items */ - for(i = curr; i != next; i=i->right) { - dc.w = textw(i->text); - if(dc.w > mw / 3) - dc.w = mw / 3; - drawtext(i->text, (sel == i) ? dc.sel : dc.norm); - dc.x += dc.w; - } - dc.x = mw - SPACE; - dc.w = SPACE; - drawtext(next ? ">" : NULL, dc.norm); - } - XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0); - XFlush(dpy); -} - -static Bool -grabkeyboard(void) { - unsigned int len; - - for(len = 1000; len; len--) { - if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime) - == GrabSuccess) - break; - usleep(1000); - } - return len > 0; -} - -static unsigned long -initcolor(const char *colstr) { - Colormap cmap = DefaultColormap(dpy, screen); - XColor color; - - if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color)) - eprint("error, cannot allocate color '%s'\n", colstr); - return color.pixel; -} - -static void -initfont(const char *fontstr) { - char *def, **missing; - int i, n; - - if(!fontstr || fontstr[0] == '\0') - eprint("error, cannot load font: '%s'\n", fontstr); - missing = NULL; - if(dc.font.set) - XFreeFontSet(dpy, dc.font.set); - dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def); - if(missing) - XFreeStringList(missing); - if(dc.font.set) { - XFontSetExtents *font_extents; - XFontStruct **xfonts; - char **font_names; - dc.font.ascent = dc.font.descent = 0; - font_extents = XExtentsOfFontSet(dc.font.set); - n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names); - for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) { - if(dc.font.ascent < (*xfonts)->ascent) - dc.font.ascent = (*xfonts)->ascent; - if(dc.font.descent < (*xfonts)->descent) - dc.font.descent = (*xfonts)->descent; - xfonts++; - } - } - else { - if(dc.font.xfont) - XFreeFont(dpy, dc.font.xfont); - dc.font.xfont = NULL; - if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))) { - if(!(dc.font.xfont = XLoadQueryFont(dpy, "fixed"))) - eprint("error, cannot load font: '%s'\n", fontstr); - } - dc.font.ascent = dc.font.xfont->ascent; - dc.font.descent = dc.font.xfont->descent; - } - dc.font.height = dc.font.ascent + dc.font.descent; -} - -static int -strido(const char *text, const char *pattern) { - for(; *text && *pattern; text++) - if (*text == *pattern) - pattern++; - return !*pattern; -} - -static void -match(char *pattern) { - unsigned int plen; - Item *i, *j; - - if(!pattern) - return; - plen = strlen(pattern); - item = j = NULL; - nitem = 0; - for(i = allitems; i; i=i->next) - if(!plen || !strncmp(pattern, i->text, plen)) { - if(!j) - item = i; - else - j->right = i; - i->left = j; - i->right = NULL; - j = i; - nitem++; - } - for(i = allitems; i; i=i->next) - if(plen && strncmp(pattern, i->text, plen) - && strstr(i->text, pattern)) { - if(!j) - item = i; - else - j->right = i; - i->left = j; - i->right = NULL; - j = i; - nitem++; - } - for(i = allitems; i; i=i->next) - if(plen && strncmp(pattern, i->text, plen) - && !strstr(i->text, pattern) - && strido(i->text,pattern)) { - if(!j) - item = i; - else - j->right = i; - i->left = j; - i->right = NULL; - j = i; - nitem++; - } - curr = prev = next = sel = item; - calcoffsets(); -} - -static void -kpress(XKeyEvent * e) { - char buf[32]; - int i, num; - unsigned int len; - KeySym ksym; - - len = strlen(text); - buf[0] = 0; - num = XLookupString(e, buf, sizeof buf, &ksym, 0); - if(IsKeypadKey(ksym)) { - if(ksym == XK_KP_Enter) { - ksym = XK_Return; - } else if(ksym >= XK_KP_0 && ksym <= XK_KP_9) { - ksym = (ksym - XK_KP_0) + XK_0; - } - } - if(IsFunctionKey(ksym) || IsKeypadKey(ksym) - || IsMiscFunctionKey(ksym) || IsPFKey(ksym) - || IsPrivateKeypadKey(ksym)) - return; - /* first check if a control mask is omitted */ - if(e->state & ControlMask) { - switch (ksym) { - default: /* ignore other control sequences */ - return; - case XK_bracketleft: - ksym = XK_Escape; - break; - case XK_h: - case XK_H: - ksym = XK_BackSpace; - break; - case XK_i: - case XK_I: - ksym = XK_Tab; - break; - case XK_j: - case XK_J: - ksym = XK_Return; - break; - case XK_u: - case XK_U: - text[0] = 0; - match(text); - drawmenu(); - return; - case XK_w: - case XK_W: - if(len) { - i = len - 1; - while(i >= 0 && text[i] == ' ') - text[i--] = 0; - while(i >= 0 && text[i] != ' ') - text[i--] = 0; - match(text); - drawmenu(); - } - return; - } - } - if(CLEANMASK(e->state) & Mod1Mask) { - switch(ksym) { - default: return; - case XK_h: - ksym = XK_Left; - break; - case XK_l: - ksym = XK_Right; - break; - case XK_j: - ksym = XK_Next; - break; - case XK_k: - ksym = XK_Prior; - break; - case XK_g: - ksym = XK_Home; - break; - case XK_G: - ksym = XK_End; - break; - } - } - switch(ksym) { - default: - if(num && !iscntrl((int) buf[0])) { - buf[num] = 0; - if(len > 0) - strncat(text, buf, sizeof text); - else - strncpy(text, buf, sizeof text); - match(text); - } - break; - case XK_BackSpace: - if(len) { - text[--len] = 0; - match(text); - } - break; - case XK_End: - if(!item) - return; - while(next) { - sel = curr = next; - calcoffsets(); - } - while(sel && sel->right) - sel = sel->right; - break; - case XK_Escape: - ret = 1; - running = False; - break; - case XK_Home: - if(!item) - return; - sel = curr = item; - calcoffsets(); - break; - case XK_Left: - if(!(sel && sel->left)) - return; - sel=sel->left; - if(sel->right == curr) { - curr = prev; - calcoffsets(); - } - break; - case XK_Next: - if(!next) - return; - sel = curr = next; - calcoffsets(); - break; - case XK_Prior: - if(!prev) - return; - sel = curr = prev; - calcoffsets(); - break; - case XK_Return: - if((e->state & ShiftMask) && text) - fprintf(stdout, "%s", text); - else if(sel) - fprintf(stdout, "%s", sel->text); - else if(text) - fprintf(stdout, "%s", text); - fflush(stdout); - running = False; - break; - case XK_Right: - if(!(sel && sel->right)) - return; - sel=sel->right; - if(sel == next) { - curr = next; - calcoffsets(); - } - break; - case XK_Tab: - if(!sel) - return; - strncpy(text, sel->text, sizeof text); - match(text); - break; - } - drawmenu(); -} - -static char * -readstdin(void) { - static char *maxname = NULL; - char *p, buf[1024]; - unsigned int len = 0, max = 0; - Item *i, *new; - - i = 0; - while(fgets(buf, sizeof buf, stdin)) { - len = strlen(buf); - if (buf[len - 1] == '\n') - buf[len - 1] = 0; - p = estrdup(buf); - if(max < len) { - maxname = p; - max = len; - } - new = emalloc(sizeof(Item)); - new->next = new->left = new->right = NULL; - new->text = p; - if(!i) - allitems = new; - else - i->next = new; - i = new; - } - - return maxname; -} - -static void -usage(void) { - eprint("usage: dmenu [-b] [-fn <font>] [-nb <color>] [-nf <color>]\n" - " [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n"); -} - -/* extern */ - -int screen; -Display *dpy; -DC dc = {0}; - -int -main(int argc, char *argv[]) { - Bool bottom = False; - char *font = FONT; - char *maxname; - char *normbg = NORMBGCOLOR; - char *normfg = NORMFGCOLOR; - char *selbg = SELBGCOLOR; - char *selfg = SELFGCOLOR; - int i, j; - Item *itm; - XEvent ev; - XModifierKeymap *modmap; - XSetWindowAttributes wa; - - /* command line args */ - for(i = 1; i < argc; i++) - if(!strcmp(argv[i], "-b")) { - bottom = True; - } - else if(!strcmp(argv[i], "-fn")) { - if(++i < argc) font = argv[i]; - } - else if(!strcmp(argv[i], "-nb")) { - if(++i < argc) normbg = argv[i]; - } - else if(!strcmp(argv[i], "-nf")) { - if(++i < argc) normfg = argv[i]; - } - else if(!strcmp(argv[i], "-p")) { - if(++i < argc) prompt = argv[i]; - } - else if(!strcmp(argv[i], "-sb")) { - if(++i < argc) selbg = argv[i]; - } - else if(!strcmp(argv[i], "-sf")) { - if(++i < argc) selfg = argv[i]; - } - else if(!strcmp(argv[i], "-v")) - eprint("dmenu-"VERSION", © 2006-2007 Anselm R. Garbe, Sander van Dijk\n"); - else - usage(); - setlocale(LC_CTYPE, ""); - dpy = XOpenDisplay(0); - if(!dpy) - eprint("dmenu: cannot open display\n"); - screen = DefaultScreen(dpy); - root = RootWindow(dpy, screen); - if(isatty(STDIN_FILENO)) { - maxname = readstdin(); - running = grabkeyboard(); - } - else { /* prevent keypress loss */ - running = grabkeyboard(); - maxname = readstdin(); - } - /* init modifier map */ - modmap = XGetModifierMapping(dpy); - for (i = 0; i < 8; i++) { - for (j = 0; j < modmap->max_keypermod; j++) { - if(modmap->modifiermap[i * modmap->max_keypermod + j] - == XKeysymToKeycode(dpy, XK_Num_Lock)) - numlockmask = (1 << i); - } - } - XFreeModifiermap(modmap); - /* style */ - dc.norm[ColBG] = initcolor(normbg); - dc.norm[ColFG] = initcolor(normfg); - dc.sel[ColBG] = initcolor(selbg); - dc.sel[ColFG] = initcolor(selfg); - initfont(font); - /* menu window */ - wa.override_redirect = 1; - wa.background_pixmap = ParentRelative; - wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask; - mw = DisplayWidth(dpy, screen); - mh = dc.font.height + 2; - win = XCreateWindow(dpy, root, 0, - bottom ? DisplayHeight(dpy, screen) - mh : 0, mw, mh, 0, - DefaultDepth(dpy, screen), CopyFromParent, - DefaultVisual(dpy, screen), - CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa); - /* pixmap */ - dc.drawable = XCreatePixmap(dpy, root, mw, mh, DefaultDepth(dpy, screen)); - dc.gc = XCreateGC(dpy, root, 0, 0); - XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter); - if(!dc.font.set) - XSetFont(dpy, dc.gc, dc.font.xfont->fid); - if(maxname) - cmdw = textw(maxname); - if(cmdw > mw / 3) - cmdw = mw / 3; - if(prompt) - promptw = textw(prompt); - if(promptw > mw / 5) - promptw = mw / 5; - text[0] = 0; - match(text); - XMapRaised(dpy, win); - drawmenu(); - XSync(dpy, False); - - /* main event loop */ - while(running && !XNextEvent(dpy, &ev)) - switch (ev.type) { - default: /* ignore all crap */ - break; - case KeyPress: - kpress(&ev.xkey); - break; - case Expose: - if(ev.xexpose.count == 0) - drawmenu(); - break; - } - - /* cleanup */ - while(allitems) { - itm = allitems->next; - free(allitems->text); - free(allitems); - allitems = itm; - } - if(dc.font.set) - XFreeFontSet(dpy, dc.font.set); - else - XFreeFont(dpy, dc.font.xfont); - XFreePixmap(dpy, dc.drawable); - XFreeGC(dpy, dc.gc); - XDestroyWindow(dpy, win); - XUngrabKeyboard(dpy, CurrentTime); - XCloseDisplay(dpy); - return ret; -} |