X-Git-Url: https://git.xinqibao.xyz/dmenu.git/blobdiff_plain/8b2f132973f0fc8150ea66debbed057d849b5cfe..2cef0ddb014622fe96ad38614b540325911a8696:/dmenu.c?ds=inline

diff --git a/dmenu.c b/dmenu.c
index 3256f9c..fa7bbe8 100644
--- a/dmenu.c
+++ b/dmenu.c
@@ -2,13 +2,17 @@
 #include <ctype.h>
 #include <locale.h>
 #include <stdarg.h>
-#include <stdlib.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>
-#include <X11/keysym.h>
+#ifdef XINERAMA
+#include <X11/extensions/Xinerama.h>
+#endif
 
 /* macros */
 #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
@@ -17,10 +21,12 @@
 enum { ColFG, ColBG, ColLast };
 
 /* typedefs */
+typedef unsigned int uint;
+typedef unsigned long ulong;
 typedef struct {
 	int x, y, w, h;
-	unsigned long norm[ColLast];
-	unsigned long sel[ColLast];
+	ulong norm[ColLast];
+	ulong sel[ColLast];
 	Drawable drawable;
 	GC gc;
 	struct {
@@ -34,85 +40,74 @@ typedef struct {
 
 typedef struct Item Item;
 struct Item {
+	char *text;
 	Item *next;		/* traverses all items */
 	Item *left, *right;	/* traverses items matching current search pattern */
-	char *text;
-	Bool matched;
 };
 
 /* forward declarations */
-Item *appenditem(Item *i, Item *last);
-void calcoffsets(void);
-void cleanup(void);
-void drawmenu(void);
-void drawtext(const char *text, unsigned long col[ColLast]);
-void *emalloc(unsigned int size);
-void eprint(const char *errstr, ...);
-char *estrdup(const char *str);
-unsigned long getcolor(const char *colstr);
-Bool grabkeyboard(void);
-void initfont(const char *fontstr);
-void kpress(XKeyEvent * e);
-void match(char *pattern);
-void readstdin(void);
-void run(void);
-void setup(Bool bottom);
-int strcaseido(const char *text, const char *pattern);
-char *cistrstr(const char *s, const char *sub);
-unsigned int textnw(const char *text, unsigned int len);
-unsigned int textw(const char *text);
+static void appenditem(Item *i, Item **list, Item **last);
+static void calcoffsets(void);
+static char *cistrstr(const char *s, const char *sub);
+static void cleanup(void);
+static void drawmenu(void);
+static void drawtext(const char *text, ulong col[ColLast]);
+static void eprint(const char *errstr, ...);
+static ulong getcolor(const char *colstr);
+static Bool grabkeyboard(void);
+static void initfont(const char *fontstr);
+static void kpress(XKeyEvent * e);
+static void match(char *pattern);
+static void readstdin(void);
+static void run(void);
+static void setup(Bool topbar);
+static int textnw(const char *text, uint len);
+static int textw(const char *text);
 
 #include "config.h"
 
 /* variables */
-char *font = FONT;
-char *maxname = NULL;
-char *normbg = NORMBGCOLOR;
-char *normfg = NORMFGCOLOR;
-char *prompt = NULL;
-char *selbg = SELBGCOLOR;
-char *selfg = SELFGCOLOR;
-char text[4096];
-int screen;
-int ret = 0;
-unsigned int cmdw = 0;
-unsigned int mw, mh;
-unsigned int promptw = 0;
-unsigned int nitem = 0;
-unsigned int numlockmask = 0;
-Bool idomatch = False;
-Bool running = True;
-Display *dpy;
-DC dc = {0};
-Item *allitems = NULL;	/* first of all items */
-Item *item = NULL;	/* first of pattern matching items */
-Item *sel = NULL;
-Item *next = NULL;
-Item *prev = NULL;
-Item *curr = NULL;
-Window root, win;
-
-Item *
-appenditem(Item *i, Item *last) {
-	if(!last)
-		item = i;
+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 uint mw, mh;
+static uint numlockmask = 0;
+static Bool running = True;
+static Display *dpy;
+static DC dc = {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 root, win;
+static int (*fstrncmp)(const char *, const char *, size_t n) = strncmp;
+static char *(*fstrstr)(const char *, const char *) = strstr;
+
+void
+appenditem(Item *i, Item **list, Item **last) {
+	if(!(*last))
+		*list = i;
 	else
-		last->right = i;
-	i->matched = True;
-	i->left = last;
+		(*last)->right = i;
+	i->left = *last;
 	i->right = NULL;
-	last = i;
-	nitem++;
-	return last;
+	*last = i;
 }
 
 void
 calcoffsets(void) {
-	unsigned int tw, w;
+	int tw;
+	uint w;
 
 	if(!curr)
 		return;
-	w = promptw + cmdw + 2 * SPACE;
+	w = promptw + cmdw + 2 * spaceitem;
 	for(next = curr; next; next=next->right) {
 		tw = textw(next->text);
 		if(tw > mw / 3)
@@ -121,7 +116,7 @@ calcoffsets(void) {
 		if(w > mw)
 			break;
 	}
-	w = promptw + cmdw + 2 * SPACE;
+	w = promptw + cmdw + 2 * spaceitem;
 	for(prev = curr; prev && prev->left; prev=prev->left) {
 		tw = textw(prev->left->text);
 		if(tw > mw / 3)
@@ -132,6 +127,29 @@ calcoffsets(void) {
 	}
 }
 
+char *
+cistrstr(const char *s, const char *sub) {
+	int c, csub;
+	uint len;
+
+	if(!sub)
+		return (char *)s;
+	if((c = *sub++) != 0) {
+		c = tolower(c);
+		len = strlen(sub);
+		do {
+			do {
+				if((csub = *s++) == 0)
+					return (NULL);
+			}
+			while(tolower(csub) != c);
+		}
+		while(strncasecmp(s, sub, len) != 0);
+		s--;
+	}
+	return (char *)s;
+}
+
 void
 cleanup(void) {
 	Item *itm;
@@ -174,7 +192,7 @@ drawmenu(void) {
 	drawtext(text[0] ? text : NULL, dc.norm);
 	dc.x += cmdw;
 	if(curr) {
-		dc.w = SPACE;
+		dc.w = spaceitem;
 		drawtext((curr && curr->left) ? "<" : NULL, dc.norm);
 		dc.x += dc.w;
 		/* determine maximum items */
@@ -185,8 +203,8 @@ drawmenu(void) {
 			drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
 			dc.x += dc.w;
 		}
-		dc.x = mw - SPACE;
-		dc.w = SPACE;
+		dc.x = mw - spaceitem;
+		dc.w = spaceitem;
 		drawtext(next ? ">" : NULL, dc.norm);
 	}
 	XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
@@ -194,10 +212,10 @@ drawmenu(void) {
 }
 
 void
-drawtext(const char *text, unsigned long col[ColLast]) {
+drawtext(const char *text, ulong col[ColLast]) {
 	int x, y, w, h;
 	static char buf[256];
-	unsigned int len, olen;
+	uint len, olen;
 	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
 
 	XSetForeground(dpy, dc.gc, col[ColBG]);
@@ -233,15 +251,6 @@ drawtext(const char *text, unsigned long col[ColLast]) {
 		XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
 }
 
-void *
-emalloc(unsigned int size) {
-	void *res = malloc(size);
-
-	if(!res)
-		eprint("fatal: could not malloc() %u bytes\n", size);
-	return res;
-}
-
 void
 eprint(const char *errstr, ...) {
 	va_list ap;
@@ -252,16 +261,7 @@ eprint(const char *errstr, ...) {
 	exit(EXIT_FAILURE);
 }
 
-char *
-estrdup(const char *str) {
-	void *res = strdup(str);
-
-	if(!res)
-		eprint("fatal: could not malloc() %u bytes\n", strlen(str));
-	return res;
-}
-
-unsigned long
+ulong
 getcolor(const char *colstr) {
 	Colormap cmap = DefaultColormap(dpy, screen);
 	XColor color;
@@ -273,11 +273,11 @@ getcolor(const char *colstr) {
 
 Bool
 grabkeyboard(void) {
-	unsigned int len;
+	uint len;
 
 	for(len = 1000; len; len--) {
 		if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
-			== GrabSuccess)
+		== GrabSuccess)
 			break;
 		usleep(1000);
 	}
@@ -329,22 +329,21 @@ void
 kpress(XKeyEvent * e) {
 	char buf[32];
 	int i, num;
-	unsigned int len;
+	uint 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) {
+	if(IsKeypadKey(ksym)) {
+		if(ksym == XK_KP_Enter)
 			ksym = XK_Return;
-		} else if(ksym >= XK_KP_0 && ksym <= XK_KP_9) {
+		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))
+	   || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
+	   || IsPrivateKeypadKey(ksym))
 		return;
 	/* first check if a control mask is omitted */
 	if(e->state & ControlMask) {
@@ -468,11 +467,11 @@ kpress(XKeyEvent * e) {
 		calcoffsets();
 		break;
 	case XK_Return:
-		if((e->state & ShiftMask) && text)
+		if((e->state & ShiftMask) && *text)
 			fprintf(stdout, "%s", text);
 		else if(sel)
 			fprintf(stdout, "%s", sel->text);
-		else if(text)
+		else if(*text)
 			fprintf(stdout, "%s", text);
 		fflush(stdout);
 		running = False;
@@ -498,26 +497,41 @@ kpress(XKeyEvent * e) {
 
 void
 match(char *pattern) {
-	unsigned int plen;
-	Item *i, *j;
+	uint plen;
+	Item *i, *itemend, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
 
 	if(!pattern)
 		return;
 	plen = strlen(pattern);
-	item = j = NULL;
-	nitem = 0;
-	for(i = allitems; i; i=i->next)
-		i->matched = False;
+	item = lexact = lprefix = lsubstr = itemend = exactend = prefixend = substrend = NULL;
 	for(i = allitems; i; i = i->next)
-		if(!i->matched && !strncasecmp(pattern, i->text, plen))
-			j = appenditem(i, j);
-	for(i = allitems; i; i = i->next)
-		if(!i->matched && cistrstr(i->text, pattern))
-			j = appenditem(i, j);
-	if(idomatch)
-		for(i = allitems; i; i = i->next)
-			if(!i->matched && strcaseido(i->text, pattern))
-				j = appenditem(i, j);
+		if(!fstrncmp(pattern, i->text, plen + 1))
+			appenditem(i, &lexact, &exactend);
+		else if(!fstrncmp(pattern, i->text, plen))
+			appenditem(i, &lprefix, &prefixend);
+		else if(fstrstr(i->text, pattern))
+			appenditem(i, &lsubstr, &substrend);
+	if(lexact) {
+		item = lexact;
+		itemend = exactend;
+	}
+	if(lprefix) {
+		if(itemend) {
+			itemend->right = lprefix;
+			lprefix->left = itemend;
+		}
+		else
+			item = lprefix;
+		itemend = prefixend;
+	}
+	if(lsubstr) {
+		if(itemend) {
+			itemend->right = lsubstr;
+			lsubstr->left = itemend;
+		}
+		else
+			item = lsubstr;
+	}
 	curr = prev = next = sel = item;
 	calcoffsets();
 }
@@ -525,7 +539,7 @@ match(char *pattern) {
 void
 readstdin(void) {
 	char *p, buf[1024];
-	unsigned int len = 0, max = 0;
+	uint len = 0, max = 0;
 	Item *i, *new;
 
 	i = 0;
@@ -533,12 +547,14 @@ readstdin(void) {
 		len = strlen(buf);
 		if (buf[len - 1] == '\n')
 			buf[len - 1] = 0;
-		p = estrdup(buf);
+		if(!(p = strdup(buf)))
+			eprint("fatal: could not strdup() %u bytes\n", strlen(buf));
 		if(max < len) {
 			maxname = p;
 			max = len;
 		}
-		new = emalloc(sizeof(Item));
+		if((new = (Item *)malloc(sizeof(Item))) == NULL)
+			eprint("fatal: could not malloc() %u bytes\n", sizeof(Item));
 		new->next = new->left = new->right = NULL;
 		new->text = p;
 		if(!i)
@@ -569,10 +585,13 @@ run(void) {
 }
 
 void
-setup(Bool bottom) {
-	unsigned int i, j;
+setup(Bool topbar) {
+	int i, j, x, y;
 	XModifierKeymap *modmap;
 	XSetWindowAttributes wa;
+#if XINERAMA
+	XineramaScreenInfo *info = NULL;
+#endif
 
 	/* init modifier map */
 	modmap = XGetModifierMapping(dpy);
@@ -585,20 +604,36 @@ setup(Bool bottom) {
 	XFreeModifiermap(modmap);
 
 	/* style */
-	dc.norm[ColBG] = getcolor(normbg);
-	dc.norm[ColFG] = getcolor(normfg);
-	dc.sel[ColBG] = getcolor(selbg);
-	dc.sel[ColFG] = getcolor(selfg);
+	dc.norm[ColBG] = getcolor(normbgcolor);
+	dc.norm[ColFG] = getcolor(normfgcolor);
+	dc.sel[ColBG] = getcolor(selbgcolor);
+	dc.sel[ColFG] = getcolor(selfgcolor);
 	initfont(font);
 
 	/* menu window */
 	wa.override_redirect = 1;
 	wa.background_pixmap = ParentRelative;
 	wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask;
-	mw = DisplayWidth(dpy, screen);
+
+	/* menu window geometry */
 	mh = dc.font.height + 2;
-	win = XCreateWindow(dpy, root, 0,
-			bottom ? DisplayHeight(dpy, screen) - mh : 0, mw, mh, 0,
+#if XINERAMA
+	if(XineramaIsActive(dpy)) {
+		info = XineramaQueryScreens(dpy, &i);
+		x = info[xidx].x_org;
+		y = topbar ? info[xidx].y_org : info[xidx].y_org + info[xidx].height - mh;
+		mw = info[xidx].width;
+		XFree(info);
+	}
+	else
+#endif
+	{
+		x = 0;
+		y = topbar ? 0 : DisplayHeight(dpy, screen) - mh;
+		mw = DisplayWidth(dpy, screen);
+	}
+
+	win = XCreateWindow(dpy, root, x, y, mw, mh, 0,
 			DefaultDepth(dpy, screen), CopyFromParent,
 			DefaultVisual(dpy, screen),
 			CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
@@ -623,38 +658,7 @@ setup(Bool bottom) {
 }
 
 int
-strcaseido(const char *text, const char *pattern) {
-	for(; *text && *pattern; text++)
-		if(tolower((int)*text) == tolower((int)*pattern))
-			pattern++;
-	return !*pattern;
-}                                  
-
-char *
-cistrstr(const char *s, const char *sub) {
-	int c, csub;
-	unsigned int len;
-
-	if(!sub)
-		return (char *)s;
-	if((c = *sub++) != 0) {
-		c = tolower(c);
-		len = strlen(sub);
-		do {
-			do {
-				if((csub = *s++) == 0)
-					return (NULL);
-			}
-			while(tolower(csub) != c);
-		}
-		while(strncasecmp(s, sub, len) != 0);
-		s--;
-	}
-	return (char *)s;
-}
-
-unsigned int
-textnw(const char *text, unsigned int len) {
+textnw(const char *text, uint len) {
 	XRectangle r;
 
 	if(dc.font.set) {
@@ -664,49 +668,49 @@ textnw(const char *text, unsigned int len) {
 	return XTextWidth(dc.font.xfont, text, len);
 }
 
-unsigned int
+int
 textw(const char *text) {
 	return textnw(text, strlen(text)) + dc.font.height;
 }
 
 int
 main(int argc, char *argv[]) {
-	Bool bottom = False;
-	unsigned int i;
+	uint i;
+	Bool topbar = True;
 
 	/* command line args */
 	for(i = 1; i < argc; i++)
-		if(!strcmp(argv[i], "-b")) {
-			bottom = True;
+		if(!strcmp(argv[i], "-i")) {
+			fstrncmp = strncasecmp;
+			fstrstr = cistrstr;
 		}
-		else if(!strcmp(argv[i], "-i"))
-			idomatch = True;
+		else if(!strcmp(argv[i], "-b"))
+			topbar = False;
 		else if(!strcmp(argv[i], "-fn")) {
 			if(++i < argc) font = argv[i];
 		}
 		else if(!strcmp(argv[i], "-nb")) {
-			if(++i < argc) normbg = argv[i];
+			if(++i < argc) normbgcolor = argv[i];
 		}
 		else if(!strcmp(argv[i], "-nf")) {
-			if(++i < argc) normfg = argv[i];
+			if(++i < argc) normfgcolor = 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];
+			if(++i < argc) selbgcolor = argv[i];
 		}
 		else if(!strcmp(argv[i], "-sf")) {
-			if(++i < argc) selfg = argv[i];
+			if(++i < argc) selfgcolor = argv[i];
 		}
 		else if(!strcmp(argv[i], "-v"))
-			eprint("dmenu-"VERSION", © 2006-2007 Anselm R. Garbe, Sander van Dijk, Michał Janeczek\n");
+			eprint("dmenu-"VERSION", © 2006-2008 dmenu engineers, see LICENSE for details\n");
 		else
-			eprint("usage: dmenu [-b] [-i] [-fn <font>] [-nb <color>] [-nf <color>]\n"
-			"             [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
+			eprint("usage: dmenu [-i] [-b] [-fn <font>] [-nb <color>] [-nf <color>]\n"
+			       "             [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
 	setlocale(LC_CTYPE, "");
-	dpy = XOpenDisplay(0);
-	if(!dpy)
+	if(!(dpy = XOpenDisplay(0)))
 		eprint("dmenu: cannot open display\n");
 	screen = DefaultScreen(dpy);
 	root = RootWindow(dpy, screen);
@@ -720,7 +724,7 @@ main(int argc, char *argv[]) {
 		readstdin();
 	}
 
-	setup(bottom);
+	setup(topbar);
 	drawmenu();
 	XSync(dpy, False);
 	run();