X-Git-Url: https://git.xinqibao.xyz/dmenu.git/blobdiff_plain/bba30e26863c75e66678f9d028d394883d86150a..855a56631916bdff1438e11c232b88450f973648:/dmenu.c

diff --git a/dmenu.c b/dmenu.c
index 7672eac..6fc414c 100644
--- a/dmenu.c
+++ b/dmenu.c
@@ -1,25 +1,14 @@
 /* See LICENSE file for copyright and license details. */
 #include <ctype.h>
 #include <locale.h>
-#include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <strings.h>
 #include <unistd.h>
 #include <X11/keysym.h>
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
-#ifdef XINERAMA
-#include <X11/extensions/Xinerama.h>
-#endif
-
-/* macros */
-#define CLEANMASK(mask)         (mask & ~(numlockmask | LockMask))
-#define INRECT(X,Y,RX,RY,RW,RH) ((X) >= (RX) && (X) < (RX) + (RW) && (Y) >= (RY) && (Y) < (RY) + (RH))
-#define MIN(a, b)               ((a) < (b) ? (a) : (b))
-#define MAX(a, b)               ((a) > (b) ? (a) : (b))
-#define IS_UTF8_1ST_CHAR(c)     ((((c) & 0xc0) == 0xc0) || !((c) & 0x80))
+#include "dmenu.h"
 
 typedef struct Item Item;
 struct Item {
@@ -34,45 +23,27 @@ static void calcoffsetsh(void);
 static void calcoffsetsv(void);
 static char *cistrstr(const char *s, const char *sub);
 static void cleanup(void);
-static void drawmenu(void);
+static void dinput(void);
 static void drawmenuh(void);
 static void drawmenuv(void);
-static void eprint(const char *errstr, ...);
-static Bool grabkeyboard(void);
-static void kpress(XKeyEvent * e);
-static void match(char *pattern);
+static void match(void);
 static void readstdin(void);
-static void run(void);
-static void setup(Bool topbar);
-
-#include "config.h"
 
 /* variables */
+static char **argp = NULL;
 static char *maxname = NULL;
-static char *prompt = NULL;
-static char text[4096];
-static int cmdw = 0;
-static int promptw = 0;
-static int ret = 0;
-static int screen;
-static unsigned int mw, mh;
-static unsigned int numlockmask = 0;
-static Bool running = True;
-static Display *dpy;
+static unsigned int cmdw = 0;
+static unsigned int lines = 0;
 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 parent, win;
 static int (*fstrncmp)(const char *, const char *, size_t) = strncmp;
 static char *(*fstrstr)(const char *, const char *) = strstr;
-static unsigned int lines = 0;
 static void (*calcoffsets)(void) = calcoffsetsh;
 
-#include "draw.c"
-
 void
 appenditem(Item *i, Item **list, Item **last) {
 	if(!(*last))
@@ -86,30 +57,27 @@ appenditem(Item *i, Item **list, Item **last) {
 
 void
 calcoffsetsh(void) {
-	unsigned int w;
+	unsigned int w, x;
 
-	if(!curr)
-		return;
-	w = promptw + cmdw + 2 * spaceitem;
-	for(next = curr; next && w < mw; next=next->right)
-		w += MIN(textw(next->text), mw / 3);
-	w = promptw + cmdw + 2 * spaceitem;
-	for(prev = curr; prev && prev->left && w < mw; prev=prev->left)
-		w += MIN(textw(prev->left->text), mw / 3);
+	w = promptw + cmdw + textw(&dc, "<") + textw(&dc, ">");
+	for(x = w, next = curr; next; next = next->right)
+		if((x += MIN(textw(&dc, next->text), mw / 3)) > mw)
+			break;
+	for(x = w, prev = curr; prev && prev->left; prev = prev->left)
+		if((x += MIN(textw(&dc, prev->left->text), mw / 3)) > mw)
+			break;
 }
 
 void
 calcoffsetsv(void) {
-	unsigned int h;
+	unsigned int i;
 
-	if(!curr)
-		return;
-	h = (dc.font.height + 2) * lines;
-	for(next = curr; next && h > 0; next = next->right)
-		h -= dc.font.height + 2;
-	h = (dc.font.height + 2) * lines;
-	for(prev = curr; prev && prev->left && h > 0; prev = prev->left)
-		h -= dc.font.height + 2;
+	next = prev = curr;
+	for(i = 0; i < lines && next; i++)
+		next = next->right;
+	mh = (dc.font.height + 2) * (i + 1);
+	for(i = 0; i < lines && prev && prev->left; i++)
+		prev = prev->left;
 }
 
 char *
@@ -136,37 +104,54 @@ cistrstr(const char *s, const char *sub) {
 
 void
 cleanup(void) {
-	dccleanup();
+	Item *itm;
+
+	while(allitems) {
+		itm = allitems->next;
+		free(allitems->text);
+		free(allitems);
+		allitems = itm;
+	}
+	cleanupdraw(&dc);
 	XDestroyWindow(dpy, win);
 	XUngrabKeyboard(dpy, CurrentTime);
+	XCloseDisplay(dpy);
 }
 
 void
-drawmenu(void) {
+dinput(void) {
+	cleanup();
+	argp[0] = "dinput";
+	argp[1] = text;
+	execvp("dinput", argp);
+	eprint("cannot exec dinput\n");
+}
+
+void
+drawbar(void) {
 	dc.x = 0;
 	dc.y = 0;
 	dc.w = mw;
 	dc.h = mh;
-	drawtext(NULL, dc.norm);
+	drawtext(&dc, NULL, normcol);
+	dc.h = dc.font.height + 2;
+	dc.y = topbar ? 0 : mh - dc.h;
 	/* print prompt? */
 	if(prompt) {
 		dc.w = promptw;
-		drawtext(prompt, dc.sel);
+		drawtext(&dc, prompt, selcol);
 		dc.x += dc.w;
 	}
 	dc.w = mw - dc.x;
 	/* print command */
 	if(cmdw && item && lines == 0)
 		dc.w = cmdw;
-	drawtext(*text ? text : NULL, dc.norm);
-	if(curr) {
-		if(lines > 0)
-			drawmenuv();
-		else
-			drawmenuh();
-	}
-	XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
-	XFlush(dpy);
+	drawtext(&dc, text, normcol);
+	if(lines > 0)
+		drawmenuv();
+	else if(curr)
+		drawmenuh();
+	commitdraw(&dc, win);
 }
 
 void
@@ -174,59 +159,37 @@ drawmenuh(void) {
 	Item *i;
 
 	dc.x += cmdw;
-	dc.w = spaceitem;
-	drawtext(curr->left ? "<" : NULL, dc.norm);
+	dc.w = textw(&dc, "<");
+	drawtext(&dc, curr->left ? "<" : NULL, normcol);
 	dc.x += dc.w;
-	for(i = curr; i != next; i=i->right) {
-		dc.w = MIN(textw(i->text), mw / 3);
-		drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
+	for(i = curr; i != next; i = i->right) {
+		dc.w = MIN(textw(&dc, i->text), mw / 3);
+		drawtext(&dc, i->text, (sel == i) ? selcol : normcol);
 		dc.x += dc.w;
 	}
-	dc.w = spaceitem;
+	dc.w = textw(&dc, ">");
 	dc.x = mw - dc.w;
-	drawtext(next ? ">" : NULL, dc.norm);
+	drawtext(&dc, next ? ">" : NULL, normcol);
 }
 
 void
 drawmenuv(void) {
 	Item *i;
+	XWindowAttributes wa;
 
+	dc.y = topbar ? dc.h : 0;
 	dc.w = mw - dc.x;
-	dc.h = dc.font.height + 2;
-	dc.y = dc.h;
-	for(i = curr; i != next; i=i->right) {
-		drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
+	for(i = curr; i != next; i = i->right) {
+		drawtext(&dc, i->text, (sel == i) ? selcol : normcol);
 		dc.y += dc.h;
 	}
-	dc.h = mh - dc.y;
-	drawtext(NULL, dc.norm);
+	if(!XGetWindowAttributes(dpy, win, &wa))
+		eprint("cannot get window attributes");
+	XMoveResizeWindow(dpy, win, wa.x, wa.y + (topbar ? 0 : wa.height - mh), mw, mh);
 }
 
 void
-eprint(const char *errstr, ...) {
-	va_list ap;
-
-	va_start(ap, errstr);
-	vfprintf(stderr, errstr, ap);
-	va_end(ap);
-	exit(EXIT_FAILURE);
-}
-
-Bool
-grabkeyboard(void) {
-	unsigned int len;
-
-	for(len = 1000; len; len--) {
-		if(XGrabKeyboard(dpy, parent, True, GrabModeAsync, GrabModeAsync, CurrentTime)
-		== GrabSuccess)
-			break;
-		usleep(1000);
-	}
-	return len > 0;
-}
-
-void
-kpress(XKeyEvent * e) {
+kpress(XKeyEvent *e) {
 	char buf[sizeof text];
 	int num;
 	unsigned int i, len;
@@ -269,6 +232,7 @@ kpress(XKeyEvent * e) {
 			ksym = XK_Tab;
 			break;
 		case XK_j:
+		case XK_m:
 			ksym = XK_Return;
 			break;
 		case XK_n:
@@ -279,7 +243,7 @@ kpress(XKeyEvent * e) {
 			break;
 		case XK_u:
 			text[0] = '\0';
-			match(text);
+			match();
 			break;
 		case XK_w:
 			if(len == 0)
@@ -288,11 +252,7 @@ kpress(XKeyEvent * e) {
 			while(i-- > 0 && text[i] == ' ');
 			while(i-- > 0 && text[i] != ' ');
 			text[++i] = '\0';
-			match(text);
-			break;
-		case XK_x:
-			execlp("dinput", "dinput", text, NULL); /* todo: argv */
-			eprint("dmenu: cannot exec dinput:");
+			match();
 			break;
 		}
 	}
@@ -302,7 +262,7 @@ kpress(XKeyEvent * e) {
 		if(num && !iscntrl((int) buf[0])) {
 			memcpy(text + len, buf, num + 1);
 			len += num;
-			match(text);
+			match();
 		}
 		break;
 	case XK_BackSpace:
@@ -311,7 +271,7 @@ kpress(XKeyEvent * e) {
 		for(i = 1; len - i > 0 && !IS_UTF8_1ST_CHAR(text[len - i]); i++);
 		len -= i;
 		text[len] = '\0';
-		match(text);
+		match();
 		break;
 	case XK_End:
 		while(next) {
@@ -322,9 +282,7 @@ kpress(XKeyEvent * e) {
 			sel = sel->right;
 		break;
 	case XK_Escape:
-		ret = 1;
-		running = False;
-		return;
+		exit(EXIT_FAILURE);
 	case XK_Home:
 		sel = curr = item;
 		calcoffsets();
@@ -352,13 +310,11 @@ kpress(XKeyEvent * e) {
 		calcoffsets();
 		break;
 	case XK_Return:
-		if((e->state & ShiftMask) || !sel)
-			fprintf(stdout, "%s", text);
-		else
-			fprintf(stdout, "%s", sel->text);
+		if(e->state & ShiftMask)
+			dinput();
+		fprintf(stdout, "%s", sel ? sel->text : text);
 		fflush(stdout);
-		running = False;
-		return;
+		exit(EXIT_SUCCESS);
 	case XK_Right:
 	case XK_Down:
 		if(!sel || !sel->right)
@@ -370,30 +326,27 @@ kpress(XKeyEvent * e) {
 		}
 		break;
 	case XK_Tab:
-		if(!sel)
-			return;
-		strncpy(text, sel->text, sizeof text);
-		match(text);
+		if(sel)
+			strncpy(text, sel->text, sizeof text);
+		dinput();
 		break;
 	}
-	drawmenu();
+	drawbar();
 }
 
 void
-match(char *pattern) {
-	unsigned int plen;
+match(void) {
+	unsigned int len;
 	Item *i, *itemend, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
 
-	if(!pattern)
-		return;
-	plen = strlen(pattern);
+	len = strlen(text);
 	item = lexact = lprefix = lsubstr = itemend = exactend = prefixend = substrend = NULL;
 	for(i = allitems; i; i = i->next)
-		if(!fstrncmp(pattern, i->text, plen + 1))
+		if(!fstrncmp(text, i->text, len + 1))
 			appenditem(i, &lexact, &exactend);
-		else if(!fstrncmp(pattern, i->text, plen))
+		else if(!fstrncmp(text, i->text, len))
 			appenditem(i, &lprefix, &prefixend);
-		else if(fstrstr(i->text, pattern))
+		else if(fstrstr(i->text, text))
 			appenditem(i, &lsubstr, &substrend);
 	if(lexact) {
 		item = lexact;
@@ -432,11 +385,11 @@ readstdin(void) {
 		if(buf[len-1] == '\n')
 			buf[--len] = '\0';
 		if(!(p = strdup(buf)))
-			eprint("dmenu: cannot strdup %u bytes\n", len);
+			eprint("cannot strdup %u bytes\n", len);
 		if((max = MAX(max, len)) == len)
 			maxname = p;
 		if(!(new = malloc(sizeof *new)))
-			eprint("dmenu: cannot malloc %u bytes\n", sizeof *new);
+			eprint("cannot malloc %u bytes\n", sizeof *new);
 		new->next = new->left = new->right = NULL;
 		new->text = p;
 		if(!i)
@@ -447,104 +400,12 @@ readstdin(void) {
 	}
 }
 
-void
-run(void) {
-	XEvent ev;
-
-	/* main event loop */
-	while(running && !XNextEvent(dpy, &ev))
-		switch (ev.type) {
-		case KeyPress:
-			kpress(&ev.xkey);
-			break;
-		case Expose:
-			if(ev.xexpose.count == 0)
-				drawmenu();
-			break;
-		case VisibilityNotify:
-			if (ev.xvisibility.state != VisibilityUnobscured)
-				XRaiseWindow(dpy, win);
-			break;
-		}
-}
-
-void
-setup(Bool topbar) {
-	int i, j, x, y;
-#if XINERAMA
-	int n;
-	XineramaScreenInfo *info = NULL;
-#endif
-	XModifierKeymap *modmap;
-	XSetWindowAttributes wa;
-	XWindowAttributes pwa;
-
-	/* 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);
-
-	initfont(font);
-
-	/* menu window */
-	wa.override_redirect = True;
-	wa.background_pixmap = ParentRelative;
-	wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask | VisibilityChangeMask;
-
-	/* menu window geometry */
-	mh = (dc.font.height + 2) * (lines + 1);
-#if XINERAMA
-	if(parent == RootWindow(dpy, screen) && XineramaIsActive(dpy) && (info = XineramaQueryScreens(dpy, &n))) {
-		i = 0;
-		if(n > 1) {
-			int di;
-			unsigned int dui;
-			Window dummy;
-			if(XQueryPointer(dpy, parent, &dummy, &dummy, &x, &y, &di, &di, &dui))
-				for(i = 0; i < n; i++)
-					if(INRECT(x, y, info[i].x_org, info[i].y_org, info[i].width, info[i].height))
-						break;
-		}
-		x = info[i].x_org;
-		y = topbar ? info[i].y_org : info[i].y_org + info[i].height - mh;
-		mw = info[i].width;
-		XFree(info);
-	}
-	else
-#endif
-	{
-		XGetWindowAttributes(dpy, parent, &pwa);
-		x = 0;
-		y = topbar ? 0 : pwa.height - mh;
-		mw = pwa.width;
-	}
-
-	win = XCreateWindow(dpy, parent, x, y, mw, mh, 0,
-			DefaultDepth(dpy, screen), CopyFromParent,
-			DefaultVisual(dpy, screen),
-			CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
-
-	dcsetup();
-	if(maxname)
-		cmdw = MIN(textw(maxname), mw / 3);
-	if(prompt)
-		promptw = MIN(textw(prompt), mw / 5);
-	text[0] = '\0';
-	match(text);
-	XMapRaised(dpy, win);
-}
-
 int
 main(int argc, char *argv[]) {
 	unsigned int i;
-	Bool topbar = True;
 
 	/* command line args */
+	progname = "dmenu";
 	for(i = 1; i < argc; i++)
 		if(!strcmp(argv[i], "-i")) {
 			fstrncmp = strncasecmp;
@@ -552,9 +413,6 @@ main(int argc, char *argv[]) {
 		}
 		else if(!strcmp(argv[i], "-b"))
 			topbar = False;
-		else if(!strcmp(argv[i], "-e")) {
-			if(++i < argc) parent = atoi(argv[i]);
-		}
 		else if(!strcmp(argv[i], "-l")) {
 			if(++i < argc) lines = atoi(argv[i]);
 			if(lines > 0)
@@ -578,27 +436,33 @@ main(int argc, char *argv[]) {
 		else if(!strcmp(argv[i], "-sf")) {
 			if(++i < argc) selfgcolor = argv[i];
 		}
-		else if(!strcmp(argv[i], "-v"))
-			eprint("dmenu-"VERSION", © 2006-2010 dmenu engineers, see LICENSE for details\n");
-		else
-			eprint("usage: dmenu [-i] [-b] [-e <xid>] [-l <lines>] [-fn <font>] [-nb <color>]\n"
-			       "             [-nf <color>] [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
+		else if(!strcmp(argv[i], "-v")) {
+			printf("dmenu-"VERSION", © 2006-2010 dmenu engineers, see LICENSE for details\n");
+			exit(EXIT_SUCCESS);
+		}
+		else {
+			fputs("usage: dmenu [-i] [-b] [-l <lines>] [-fn <font>] [-nb <color>]\n"
+			      "             [-nf <color>] [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n", stderr);
+			exit(EXIT_FAILURE);
+		}
 	if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
 		fprintf(stderr, "dmenu: warning: no locale support\n");
 	if(!(dpy = XOpenDisplay(NULL)))
-		eprint("dmenu: cannot open display\n");
+		eprint("cannot open display\n");
+	if(atexit(&cleanup) != 0)
+		eprint("cannot register cleanup\n");
 	screen = DefaultScreen(dpy);
-	if(!parent)
-		parent = RootWindow(dpy, screen);
+	root = RootWindow(dpy, screen);
+	if(!(argp = malloc(sizeof *argp * (argc+2))))
+		eprint("cannot malloc %u bytes\n", sizeof *argp * (argc+2));
+	memcpy(argp + 2, argv + 1, sizeof *argp * argc);
 
 	readstdin();
-	running = grabkeyboard();
-
-	setup(topbar);
-	drawmenu();
-	XSync(dpy, False);
+	grabkeyboard();
+	setup(lines);
+	if(maxname)
+		cmdw = MIN(textw(&dc, maxname), mw / 3);
+	match();
 	run();
-	cleanup();
-	XCloseDisplay(dpy);
-	return ret;
+	return 0;
 }