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685 lines
17 KiB
685 lines
17 KiB
/* See LICENSE file for copyright and license details. */
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#include <ctype.h>
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#include <locale.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <unistd.h>
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#include <X11/Xlib.h>
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#include <X11/Xatom.h>
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#include <X11/Xutil.h>
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#ifdef XINERAMA
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#include <X11/extensions/Xinerama.h>
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#endif
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#include <X11/Xft/Xft.h>
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#include "drw.h"
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#include "util.h"
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/* macros */
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#define INTERSECT(x,y,w,h,r) (MAX(0, MIN((x)+(w),(r).x_org+(r).width) - MAX((x),(r).x_org)) \
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* MAX(0, MIN((y)+(h),(r).y_org+(r).height) - MAX((y),(r).y_org)))
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#define LENGTH(X) (sizeof X / sizeof X[0])
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#define TEXTNW(X,N) (drw_font_getexts_width(drw->fonts[0], (X), (N)))
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#define TEXTW(X) (drw_text(drw, 0, 0, 0, 0, (X), 0) + drw->fonts[0]->h)
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/* enums */
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enum { SchemeNorm, SchemeSel, SchemeOut, SchemeLast }; /* color schemes */
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typedef struct Item Item;
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struct Item {
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char *text;
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Item *left, *right;
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Bool out;
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};
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static void appenditem(Item *item, Item **list, Item **last);
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static void calcoffsets(void);
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static char *cistrstr(const char *s, const char *sub);
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static void cleanup(void);
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static void drawmenu(void);
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static void grabkeyboard(void);
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static void insert(const char *str, ssize_t n);
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static void keypress(XKeyEvent *ev);
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static void match(void);
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static size_t nextrune(int inc);
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static void paste(void);
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static void readstdin(void);
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static void run(void);
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static void setup(void);
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static void usage(void);
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static char text[BUFSIZ] = "";
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static int bh, mw, mh;
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static int inputw, promptw;
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static size_t cursor = 0;
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static Atom clip, utf8;
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static Item *items = NULL;
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static Item *matches, *matchend;
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static Item *prev, *curr, *next, *sel;
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static Window win;
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static XIC xic;
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static int mon = -1;
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static ClrScheme scheme[SchemeLast];
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static Display *dpy;
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static int screen;
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static Window root;
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static Drw *drw;
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static int sw, sh; /* X display screen geometry width, height */
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#include "config.h"
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static int (*fstrncmp)(const char *, const char *, size_t) = strncmp;
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static char *(*fstrstr)(const char *, const char *) = strstr;
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int
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main(int argc, char *argv[]) {
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Bool fast = False;
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int i;
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for(i = 1; i < argc; i++)
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/* these options take no arguments */
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if(!strcmp(argv[i], "-v")) { /* prints version information */
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puts("dmenu-"VERSION", © 2006-2015 dmenu engineers, see LICENSE for details");
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exit(0);
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}
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else if(!strcmp(argv[i], "-b")) /* appears at the bottom of the screen */
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topbar = False;
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else if(!strcmp(argv[i], "-f")) /* grabs keyboard before reading stdin */
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fast = True;
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else if(!strcmp(argv[i], "-i")) { /* case-insensitive item matching */
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fstrncmp = strncasecmp;
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fstrstr = cistrstr;
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}
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else if(i+1 == argc)
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usage();
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/* these options take one argument */
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else if(!strcmp(argv[i], "-l")) /* number of lines in vertical list */
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lines = atoi(argv[++i]);
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else if(!strcmp(argv[i], "-m"))
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mon = atoi(argv[++i]);
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else if(!strcmp(argv[i], "-p")) /* adds prompt to left of input field */
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prompt = argv[++i];
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else if(!strcmp(argv[i], "-fn")) /* font or font set */
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fonts[0] = argv[++i];
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else if(!strcmp(argv[i], "-nb")) /* normal background color */
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normbgcolor = argv[++i];
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else if(!strcmp(argv[i], "-nf")) /* normal foreground color */
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normfgcolor = argv[++i];
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else if(!strcmp(argv[i], "-sb")) /* selected background color */
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selbgcolor = argv[++i];
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else if(!strcmp(argv[i], "-sf")) /* selected foreground color */
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selfgcolor = argv[++i];
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else
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usage();
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if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
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fputs("warning: no locale support\n", stderr);
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if(!(dpy = XOpenDisplay(NULL)))
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die("dwm: cannot open display\n");
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screen = DefaultScreen(dpy);
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root = RootWindow(dpy, screen);
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sw = DisplayWidth(dpy, screen);
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sh = DisplayHeight(dpy, screen);
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drw = drw_create(dpy, screen, root, sw, sh);
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drw_load_fonts(drw, fonts, LENGTH(fonts));
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if(!drw->fontcount)
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die("No fonts could be loaded.\n");
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drw_setscheme(drw, &scheme[SchemeNorm]);
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if(fast) {
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grabkeyboard();
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readstdin();
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}
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else {
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readstdin();
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grabkeyboard();
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}
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setup();
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run();
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return 1; /* unreachable */
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}
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void
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appenditem(Item *item, Item **list, Item **last) {
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if(*last)
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(*last)->right = item;
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else
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*list = item;
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item->left = *last;
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item->right = NULL;
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*last = item;
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}
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void
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calcoffsets(void) {
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int i, n;
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if(lines > 0)
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n = lines * bh;
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else
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n = mw - (promptw + inputw + TEXTW("<") + TEXTW(">"));
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/* calculate which items will begin the next page and previous page */
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for(i = 0, next = curr; next; next = next->right)
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if((i += (lines > 0) ? bh : MIN(TEXTW(next->text), n)) > n)
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break;
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for(i = 0, prev = curr; prev && prev->left; prev = prev->left)
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if((i += (lines > 0) ? bh : MIN(TEXTW(prev->left->text), n)) > n)
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break;
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}
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void
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cleanup(void) {
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XUngrabKey(dpy, AnyKey, AnyModifier, root);
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drw_clr_free(scheme[SchemeNorm].bg);
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drw_clr_free(scheme[SchemeNorm].fg);
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drw_clr_free(scheme[SchemeSel].fg);
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drw_clr_free(scheme[SchemeSel].bg);
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drw_clr_free(scheme[SchemeOut].fg);
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drw_clr_free(scheme[SchemeOut].bg);
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drw_free(drw);
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XSync(dpy, False);
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XCloseDisplay(dpy);
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}
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char *
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cistrstr(const char *s, const char *sub) {
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size_t len;
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for(len = strlen(sub); *s; s++)
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if(!strncasecmp(s, sub, len))
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return (char *)s;
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return NULL;
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}
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void
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drawmenu(void) {
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int curpos;
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Item *item;
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int x = 0, y = 0, h = bh, w;
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drw_setscheme(drw, &scheme[SchemeNorm]);
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drw_rect(drw, 0, 0, mw, mh, True, 1, 1);
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if(prompt && *prompt) {
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drw_setscheme(drw, &scheme[SchemeSel]);
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drw_text(drw, x, 0, promptw, bh, prompt, 0);
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x += promptw;
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}
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/* draw input field */
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w = (lines > 0 || !matches) ? mw - x : inputw;
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drw_setscheme(drw, &scheme[SchemeNorm]);
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drw_text(drw, x, 0, w, bh, text, 0);
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if((curpos = TEXTNW(text, cursor) + bh/2 - 2) < w) {
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drw_setscheme(drw, &scheme[SchemeNorm]);
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drw_rect(drw, x + curpos + 2, 2, 1, bh - 4, 1, 1, 0);
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}
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if(lines > 0) {
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/* draw vertical list */
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w = mw - x;
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for(item = curr; item != next; item = item->right) {
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y += h;
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if(item == sel)
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drw_setscheme(drw, &scheme[SchemeSel]);
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else if(item->out)
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drw_setscheme(drw, &scheme[SchemeOut]);
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else
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drw_setscheme(drw, &scheme[SchemeNorm]);
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drw_text(drw, x, y, w, bh, item->text, 0);
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}
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}
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else if(matches) {
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/* draw horizontal list */
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x += inputw;
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w = TEXTW("<");
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if(curr->left) {
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drw_setscheme(drw, &scheme[SchemeNorm]);
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drw_text(drw, x, 0, w, bh, "<", 0);
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}
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for(item = curr; item != next; item = item->right) {
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x += w;
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w = MIN(TEXTW(item->text), mw - x - TEXTW(">"));
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if(item == sel)
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drw_setscheme(drw, &scheme[SchemeSel]);
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else if(item->out)
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drw_setscheme(drw, &scheme[SchemeOut]);
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else
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drw_setscheme(drw, &scheme[SchemeNorm]);
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drw_text(drw, x, 0, w, bh, item->text, 0);
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}
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w = TEXTW(">");
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x = mw - w;
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if(next) {
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drw_setscheme(drw, &scheme[SchemeNorm]);
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drw_text(drw, x, 0, w, bh, ">", 0);
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}
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}
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drw_map(drw, win, 0, 0, mw, mh);
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}
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void
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grabkeyboard(void) {
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int i;
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/* try to grab keyboard, we may have to wait for another process to ungrab */
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for(i = 0; i < 1000; i++) {
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if(XGrabKeyboard(dpy, DefaultRootWindow(dpy), True,
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GrabModeAsync, GrabModeAsync, CurrentTime) == GrabSuccess)
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return;
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usleep(1000);
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}
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die("cannot grab keyboard\n");
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}
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void
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insert(const char *str, ssize_t n) {
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if(strlen(text) + n > sizeof text - 1)
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return;
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/* move existing text out of the way, insert new text, and update cursor */
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memmove(&text[cursor + n], &text[cursor], sizeof text - cursor - MAX(n, 0));
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if(n > 0)
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memcpy(&text[cursor], str, n);
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cursor += n;
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match();
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}
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void
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keypress(XKeyEvent *ev) {
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char buf[32];
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int len;
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KeySym ksym = NoSymbol;
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Status status;
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len = XmbLookupString(xic, ev, buf, sizeof buf, &ksym, &status);
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if(status == XBufferOverflow)
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return;
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if(ev->state & ControlMask)
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switch(ksym) {
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case XK_a: ksym = XK_Home; break;
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case XK_b: ksym = XK_Left; break;
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case XK_c: ksym = XK_Escape; break;
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case XK_d: ksym = XK_Delete; break;
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case XK_e: ksym = XK_End; break;
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case XK_f: ksym = XK_Right; break;
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case XK_g: ksym = XK_Escape; break;
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case XK_h: ksym = XK_BackSpace; break;
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case XK_i: ksym = XK_Tab; break;
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case XK_j: /* fallthrough */
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case XK_J: /* fallthrough */
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case XK_m: /* fallthrough */
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case XK_M: ksym = XK_Return; ev->state &= ~ControlMask; break;
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case XK_n: ksym = XK_Down; break;
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case XK_p: ksym = XK_Up; break;
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case XK_k: /* delete right */
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text[cursor] = '\0';
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match();
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break;
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case XK_u: /* delete left */
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insert(NULL, 0 - cursor);
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break;
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case XK_w: /* delete word */
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while(cursor > 0 && text[nextrune(-1)] == ' ')
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insert(NULL, nextrune(-1) - cursor);
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while(cursor > 0 && text[nextrune(-1)] != ' ')
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insert(NULL, nextrune(-1) - cursor);
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break;
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case XK_y: /* paste selection */
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XConvertSelection(dpy, (ev->state & ShiftMask) ? clip : XA_PRIMARY,
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utf8, utf8, win, CurrentTime);
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return;
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case XK_Return:
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case XK_KP_Enter:
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break;
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case XK_bracketleft:
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cleanup();
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exit(1);
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default:
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return;
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}
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else if(ev->state & Mod1Mask)
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switch(ksym) {
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case XK_g: ksym = XK_Home; break;
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case XK_G: ksym = XK_End; break;
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case XK_h: ksym = XK_Up; break;
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case XK_j: ksym = XK_Next; break;
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case XK_k: ksym = XK_Prior; break;
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case XK_l: ksym = XK_Down; break;
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default:
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return;
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}
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switch(ksym) {
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default:
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if(!iscntrl(*buf))
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insert(buf, len);
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break;
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case XK_Delete:
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if(text[cursor] == '\0')
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return;
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cursor = nextrune(+1);
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/* fallthrough */
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case XK_BackSpace:
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if(cursor == 0)
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return;
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insert(NULL, nextrune(-1) - cursor);
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break;
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case XK_End:
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if(text[cursor] != '\0') {
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cursor = strlen(text);
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break;
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}
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if(next) {
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/* jump to end of list and position items in reverse */
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curr = matchend;
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calcoffsets();
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curr = prev;
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calcoffsets();
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while(next && (curr = curr->right))
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calcoffsets();
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}
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sel = matchend;
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break;
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case XK_Escape:
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cleanup();
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exit(1);
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case XK_Home:
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if(sel == matches) {
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cursor = 0;
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break;
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}
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sel = curr = matches;
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calcoffsets();
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break;
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case XK_Left:
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if(cursor > 0 && (!sel || !sel->left || lines > 0)) {
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cursor = nextrune(-1);
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break;
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}
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if(lines > 0)
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return;
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/* fallthrough */
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case XK_Up:
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if(sel && sel->left && (sel = sel->left)->right == curr) {
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curr = prev;
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calcoffsets();
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}
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break;
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case XK_Next:
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if(!next)
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return;
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sel = curr = next;
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calcoffsets();
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break;
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case XK_Prior:
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if(!prev)
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return;
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sel = curr = prev;
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calcoffsets();
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break;
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case XK_Return:
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case XK_KP_Enter:
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puts((sel && !(ev->state & ShiftMask)) ? sel->text : text);
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if(!(ev->state & ControlMask)) {
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cleanup();
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exit(0);
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}
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if(sel)
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sel->out = True;
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break;
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case XK_Right:
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if(text[cursor] != '\0') {
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cursor = nextrune(+1);
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break;
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}
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if(lines > 0)
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return;
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/* fallthrough */
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case XK_Down:
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if(sel && sel->right && (sel = sel->right) == next) {
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curr = next;
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calcoffsets();
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}
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break;
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case XK_Tab:
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if(!sel)
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return;
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strncpy(text, sel->text, sizeof text - 1);
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text[sizeof text - 1] = '\0';
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cursor = strlen(text);
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match();
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break;
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}
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drawmenu();
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}
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void
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match(void) {
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static char **tokv = NULL;
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static int tokn = 0;
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char buf[sizeof text], *s;
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int i, tokc = 0;
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size_t len;
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Item *item, *lprefix, *lsubstr, *prefixend, *substrend;
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strcpy(buf, text);
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/* separate input text into tokens to be matched individually */
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for(s = strtok(buf, " "); s; tokv[tokc-1] = s, s = strtok(NULL, " "))
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if(++tokc > tokn && !(tokv = realloc(tokv, ++tokn * sizeof *tokv)))
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die("cannot realloc %u bytes\n", tokn * sizeof *tokv);
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len = tokc ? strlen(tokv[0]) : 0;
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matches = lprefix = lsubstr = matchend = prefixend = substrend = NULL;
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for(item = items; item && item->text; item++) {
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for(i = 0; i < tokc; i++)
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if(!fstrstr(item->text, tokv[i]))
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break;
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if(i != tokc) /* not all tokens match */
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continue;
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/* exact matches go first, then prefixes, then substrings */
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if(!tokc || !fstrncmp(tokv[0], item->text, len+1))
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appenditem(item, &matches, &matchend);
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else if(!fstrncmp(tokv[0], item->text, len))
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appenditem(item, &lprefix, &prefixend);
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else
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appenditem(item, &lsubstr, &substrend);
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}
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if(lprefix) {
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if(matches) {
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matchend->right = lprefix;
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lprefix->left = matchend;
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}
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else
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matches = lprefix;
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matchend = prefixend;
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}
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if(lsubstr) {
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if(matches) {
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matchend->right = lsubstr;
|
|
lsubstr->left = matchend;
|
|
}
|
|
else
|
|
matches = lsubstr;
|
|
matchend = substrend;
|
|
}
|
|
curr = sel = matches;
|
|
calcoffsets();
|
|
}
|
|
|
|
size_t
|
|
nextrune(int inc) {
|
|
ssize_t n;
|
|
|
|
/* return location of next utf8 rune in the given direction (+1 or -1) */
|
|
for(n = cursor + inc; n + inc >= 0 && (text[n] & 0xc0) == 0x80; n += inc);
|
|
return n;
|
|
}
|
|
|
|
void
|
|
paste(void) {
|
|
char *p, *q;
|
|
int di;
|
|
unsigned long dl;
|
|
Atom da;
|
|
|
|
/* we have been given the current selection, now insert it into input */
|
|
XGetWindowProperty(dpy, win, utf8, 0, (sizeof text / 4) + 1, False,
|
|
utf8, &da, &di, &dl, &dl, (unsigned char **)&p);
|
|
insert(p, (q = strchr(p, '\n')) ? q-p : (ssize_t)strlen(p));
|
|
XFree(p);
|
|
drawmenu();
|
|
}
|
|
|
|
void
|
|
readstdin(void) {
|
|
char buf[sizeof text], *p, *maxstr = NULL;
|
|
size_t i, max = 0, size = 0;
|
|
|
|
/* read each line from stdin and add it to the item list */
|
|
for(i = 0; fgets(buf, sizeof buf, stdin); i++) {
|
|
if(i+1 >= size / sizeof *items)
|
|
if(!(items = realloc(items, (size += BUFSIZ))))
|
|
die("cannot realloc %u bytes:", size);
|
|
if((p = strchr(buf, '\n')))
|
|
*p = '\0';
|
|
if(!(items[i].text = strdup(buf)))
|
|
die("cannot strdup %u bytes:", strlen(buf)+1);
|
|
items[i].out = False;
|
|
if(strlen(items[i].text) > max)
|
|
max = strlen(maxstr = items[i].text);
|
|
}
|
|
if(items)
|
|
items[i].text = NULL;
|
|
inputw = maxstr ? TEXTW(maxstr) : 0;
|
|
lines = MIN(lines, i);
|
|
}
|
|
|
|
void
|
|
run(void) {
|
|
XEvent ev;
|
|
|
|
while(!XNextEvent(dpy, &ev)) {
|
|
if(XFilterEvent(&ev, win))
|
|
continue;
|
|
switch(ev.type) {
|
|
case Expose:
|
|
if(ev.xexpose.count == 0)
|
|
drw_map(drw, win, 0, 0, mw, mh);
|
|
break;
|
|
case KeyPress:
|
|
keypress(&ev.xkey);
|
|
break;
|
|
case SelectionNotify:
|
|
if(ev.xselection.property == utf8)
|
|
paste();
|
|
break;
|
|
case VisibilityNotify:
|
|
if(ev.xvisibility.state != VisibilityUnobscured)
|
|
XRaiseWindow(dpy, win);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
setup(void) {
|
|
int x, y;
|
|
XSetWindowAttributes swa;
|
|
XIM xim;
|
|
#ifdef XINERAMA
|
|
XineramaScreenInfo *info;
|
|
Window w, pw, dw, *dws;
|
|
XWindowAttributes wa;
|
|
int a, j, di, n, i = 0, area = 0;
|
|
unsigned int du;
|
|
#endif
|
|
|
|
/* init appearance */
|
|
scheme[SchemeNorm].bg = drw_clr_create(drw, normbgcolor);
|
|
scheme[SchemeNorm].fg = drw_clr_create(drw, normfgcolor);
|
|
scheme[SchemeSel].bg = drw_clr_create(drw, selbgcolor);
|
|
scheme[SchemeSel].fg = drw_clr_create(drw, selfgcolor);
|
|
scheme[SchemeOut].bg = drw_clr_create(drw, outbgcolor);
|
|
scheme[SchemeOut].fg = drw_clr_create(drw, outfgcolor);
|
|
|
|
clip = XInternAtom(dpy, "CLIPBOARD", False);
|
|
utf8 = XInternAtom(dpy, "UTF8_STRING", False);
|
|
|
|
/* calculate menu geometry */
|
|
bh = drw->fonts[0]->h + 2;
|
|
lines = MAX(lines, 0);
|
|
mh = (lines + 1) * bh;
|
|
#ifdef XINERAMA
|
|
if((info = XineramaQueryScreens(dpy, &n))) {
|
|
XGetInputFocus(dpy, &w, &di);
|
|
if(mon != -1 && mon < n)
|
|
i = mon;
|
|
if(!i && w != root && w != PointerRoot && w != None) {
|
|
/* find top-level window containing current input focus */
|
|
do {
|
|
if(XQueryTree(dpy, (pw = w), &dw, &w, &dws, &du) && dws)
|
|
XFree(dws);
|
|
} while(w != root && w != pw);
|
|
/* find xinerama screen with which the window intersects most */
|
|
if(XGetWindowAttributes(dpy, pw, &wa))
|
|
for(j = 0; j < n; j++)
|
|
if((a = INTERSECT(wa.x, wa.y, wa.width, wa.height, info[j])) > area) {
|
|
area = a;
|
|
i = j;
|
|
}
|
|
}
|
|
/* no focused window is on screen, so use pointer location instead */
|
|
if(mon == -1 && !area && XQueryPointer(dpy, root, &dw, &dw, &x, &y, &di, &di, &du))
|
|
for(i = 0; i < n; i++)
|
|
if(INTERSECT(x, y, 1, 1, info[i]))
|
|
break;
|
|
|
|
x = info[i].x_org;
|
|
y = info[i].y_org + (topbar ? 0 : info[i].height - mh);
|
|
mw = info[i].width;
|
|
XFree(info);
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
x = 0;
|
|
y = topbar ? 0 : sh - mh;
|
|
mw = sw;
|
|
}
|
|
promptw = (prompt && *prompt) ? TEXTW(prompt) : 0;
|
|
inputw = MIN(inputw, mw/3);
|
|
match();
|
|
|
|
/* create menu window */
|
|
swa.override_redirect = True;
|
|
swa.background_pixel = scheme[SchemeNorm].bg->pix;
|
|
swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask;
|
|
win = XCreateWindow(dpy, root, x, y, mw, mh, 0,
|
|
DefaultDepth(dpy, screen), CopyFromParent,
|
|
DefaultVisual(dpy, screen),
|
|
CWOverrideRedirect | CWBackPixel | CWEventMask, &swa);
|
|
|
|
/* open input methods */
|
|
xim = XOpenIM(dpy, NULL, NULL, NULL);
|
|
xic = XCreateIC(xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing,
|
|
XNClientWindow, win, XNFocusWindow, win, NULL);
|
|
|
|
XMapRaised(dpy, win);
|
|
drw_resize(drw, mw, mh);
|
|
drawmenu();
|
|
}
|
|
|
|
void
|
|
usage(void) {
|
|
fputs("usage: dmenu [-b] [-f] [-i] [-l lines] [-p prompt] [-fn font] [-m monitor]\n"
|
|
" [-nb color] [-nf color] [-sb color] [-sf color] [-v]\n", stderr);
|
|
exit(1);
|
|
}
|