X-Git-Url: https://git.xinqibao.xyz/dmenu.git/blobdiff_plain/5077207088b08e6b21601cb19925d20e9d5af573..08420a935b96bf1bd8531c3a9cda66ee87e31855:/main.c

diff --git a/main.c b/main.c
index 14524c9..573d7c3 100644
--- a/main.c
+++ b/main.c
@@ -1,17 +1,17 @@
-/*
- * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
- * (C)opyright MMVI Sander van Dijk <a dot h dot vandijk at gmail dot com>
+/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
+ * (C)opyright MMVI-MMVII Sander van Dijk <a dot h dot vandijk at gmail dot com>
  * See LICENSE file for 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/cursorfont.h>
+#include <sys/select.h>
+#include <sys/time.h>
 #include <X11/Xutil.h>
 #include <X11/keysym.h>
 
@@ -24,14 +24,14 @@ struct Item {
 
 /* static */
 
-static char *title, text[4096];
+static char text[4096];
+static char *prompt = NULL;
 static int mx, my, mw, mh;
 static int ret = 0;
 static int nitem = 0;
 static unsigned int cmdw = 0;
-static unsigned int tw = 0;
-static unsigned int cw = 0;
-static Bool done = False;
+static unsigned int promptw = 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;
@@ -42,14 +42,12 @@ static Window root;
 static Window win;
 
 static void
-calcoffsets()
-{
+calcoffsets(void) {
 	unsigned int tw, w;
 
 	if(!curr)
 		return;
-
-	w = cmdw + 2 * SPACE;
+	w = promptw + cmdw + 2 * SPACE;
 	for(next = curr; next; next=next->right) {
 		tw = textw(next->text);
 		if(tw > mw / 3)
@@ -58,8 +56,7 @@ calcoffsets()
 		if(w > mw)
 			break;
 	}
-
-	w = cmdw + 2 * SPACE;
+	w = promptw + cmdw + 2 * SPACE;
 	for(prev = curr; prev && prev->left; prev=prev->left) {
 		tw = textw(prev->left->text);
 		if(tw > mw / 3)
@@ -71,71 +68,56 @@ calcoffsets()
 }
 
 static void
-drawmenu()
-{
+drawmenu(void) {
 	Item *i;
 
 	dc.x = 0;
 	dc.y = 0;
 	dc.w = mw;
 	dc.h = mh;
-	drawtext(NULL, False, False);
-
-	/* print command */
-	if(!title || text[0]) {
-		cmdw = cw;
-		if(cmdw && item)
-			dc.w = cmdw;
-		drawtext(text, False, False);
+	drawtext(NULL, dc.norm);
+	/* print prompt? */
+	if(promptw) {
+		dc.w = promptw;
+		drawtext(prompt, dc.sel);
 	}
-	else {
-		cmdw = tw;
+	dc.x += promptw;
+	dc.w = mw - promptw;
+	/* print command */
+	if(cmdw && item)
 		dc.w = cmdw;
-		drawtext(title, False, False);
-	}
-	dc.x += dc.w;
-
+	drawtext(text[0] ? text : NULL, dc.norm);
+	dc.x += cmdw;
 	if(curr) {
 		dc.w = SPACE;
-		drawtext((curr && curr->left) ? "<" : NULL, False, False);
+		drawtext((curr && curr->left) ? "<" : NULL, dc.norm);
 		dc.x += dc.w;
-
 		/* determine maximum items */
 		for(i = curr; i != next; i=i->right) {
-			dc.border = False;
 			dc.w = textw(i->text);
 			if(dc.w > mw / 3)
 				dc.w = mw / 3;
-			drawtext(i->text, sel == i, sel == i);
+			drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
 			dc.x += dc.w;
 		}
-
 		dc.x = mw - SPACE;
 		dc.w = SPACE;
-		drawtext(next ? ">" : NULL, False, False);
+		drawtext(next ? ">" : NULL, dc.norm);
 	}
 	XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
 	XFlush(dpy);
 }
 
 static void
-input(char *pattern)
-{
+match(char *pattern) {
 	unsigned int plen;
 	Item *i, *j;
 
 	if(!pattern)
 		return;
-
-	if(!title || *pattern)
-		cmdw = cw;
-	else
-		cmdw = tw;
-
 	plen = strlen(pattern);
 	item = j = NULL;
 	nitem = 0;
-
 	for(i = allitems; i; i=i->next)
 		if(!plen || !strncmp(pattern, i->text, plen)) {
 			if(!j)
@@ -159,14 +141,12 @@ input(char *pattern)
 			j = i;
 			nitem++;
 		}
-
 	curr = prev = next = sel = item;
 	calcoffsets();
 }
 
 static void
-kpress(XKeyEvent * e)
-{
+kpress(XKeyEvent * e) {
 	char buf[32];
 	int num, prev_nitem;
 	unsigned int i, len;
@@ -174,13 +154,11 @@ kpress(XKeyEvent * e)
 
 	len = strlen(text);
 	buf[0] = 0;
-	num = XLookupString(e, buf, sizeof(buf), &ksym, 0);
-
+	num = XLookupString(e, buf, sizeof buf, &ksym, 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) {
@@ -188,21 +166,82 @@ kpress(XKeyEvent * e)
 			return;
 			break;
 		case XK_h:
+		case XK_H:
 			ksym = XK_BackSpace;
 			break;
-		case XK_U:
 		case XK_u:
+		case XK_U:
 			text[0] = 0;
-			input(text);
+			match(text);
 			drawmenu();
 			return;
 			break;
-		case XK_bracketleft:
-			ksym = XK_Escape;
+		}
+	}
+	if(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((i = len)) {
+			prev_nitem = nitem;
+			do {
+				text[--i] = 0;
+				match(text);
+			} while(i && nitem && prev_nitem == nitem);
+			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;
@@ -212,70 +251,56 @@ kpress(XKeyEvent * e)
 			calcoffsets();
 		}
 		break;
-	case XK_Tab:
-		if(!sel)
+	case XK_Next:
+		if(!next)
 			return;
-		strncpy(text, sel->text, sizeof(text));
-		input(text);
+		sel = curr = next;
+		calcoffsets();
 		break;
-	case XK_Right:
-		if(!(sel && sel->right))
+	case XK_Prior:
+		if(!prev)
 			return;
-		sel=sel->right;
-		if(sel == next) {
-			curr = next;
-			calcoffsets();
-		}
+		sel = curr = prev;
+		calcoffsets();
 		break;
 	case XK_Return:
-		if(e->state & ShiftMask) {
-			if(text)
-				fprintf(stdout, "%s", text);
-		}
+		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);
-		done = True;
-		break;
-	case XK_Escape:
-		ret = 1;
-		done = True;
+		running = False;
 		break;
-	case XK_BackSpace:
-		if((i = len)) {
-			prev_nitem = nitem;
-			do {
-				text[--i] = 0;
-				input(text);
-			} while(i && nitem && prev_nitem == nitem);
-			input(text);
+	case XK_Right:
+		if(!(sel && sel->right))
+			return;
+		sel=sel->right;
+		if(sel == next) {
+			curr = next;
+			calcoffsets();
 		}
 		break;
-	default:
-		if(num && !iscntrl((int) buf[0])) {
-			buf[num] = 0;
-			if(len > 0)
-				strncat(text, buf, sizeof(text));
-			else
-				strncpy(text, buf, sizeof(text));
-			input(text);
-		}
+	case XK_Tab:
+		if(!sel)
+			return;
+		strncpy(text, sel->text, sizeof text);
+		match(text);
+		break;
 	}
 	drawmenu();
 }
 
 static char *
-readinput()
-{
+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)) {
+	while(fgets(buf, sizeof buf, stdin)) {
 		len = strlen(buf);
 		if (buf[len - 1] == '\n')
 			buf[len - 1] = 0;
@@ -284,7 +309,6 @@ readinput()
 			maxname = p;
 			max = len;
 		}
-
 		new = emalloc(sizeof(Item));
 		new->next = new->left = new->right = NULL;
 		new->text = p;
@@ -305,93 +329,118 @@ Display *dpy;
 DC dc = {0};
 
 int
-main(int argc, char *argv[])
-{
+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;
+	fd_set rd;
 	int i;
+	struct timeval timeout;
+	Item *itm;
 	XEvent ev;
 	XSetWindowAttributes wa;
 
+	timeout.tv_usec = 0;
+	timeout.tv_sec = 3;
 	/* command line args */
-	for(i = 1; i < argc; i++) {
-		if (argv[i][0] == '-')
-			switch (argv[i][1]) {
-			case 'v':
-				fputs("dmenu-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout);
-				exit(EXIT_SUCCESS);
-				break;
-			case 't':
-				if(++i < argc) {
-					title = argv[i];
-					break;
-				}
-			default:
-				eprint("usage: dmenu [-v] [-t <title>]\n");
-				break;
-			}
+	for(i = 1; i < argc; i++)
+		if(!strncmp(argv[i], "-b", 3)) {
+			bottom = True;
+		}
+		else if(!strncmp(argv[i], "-fn", 4)) {
+			if(++i < argc) font = argv[i];
+		}
+		else if(!strncmp(argv[i], "-nb", 4)) {
+			if(++i < argc) normbg = argv[i];
+		}
+		else if(!strncmp(argv[i], "-nf", 4)) {
+			if(++i < argc) normfg = argv[i];
+		}
+		else if(!strncmp(argv[i], "-p", 3)) {
+			if(++i < argc) prompt = argv[i];
+		}
+		else if(!strncmp(argv[i], "-sb", 4)) {
+			if(++i < argc) selbg = argv[i];
+		}
+		else if(!strncmp(argv[i], "-sf", 4)) {
+			if(++i < argc) selfg = argv[i];
+		}
+		else if(!strncmp(argv[i], "-t", 3)) {
+			if(++i < argc) timeout.tv_sec = atoi(argv[i]);
+		}
+		else if(!strncmp(argv[i], "-v", 3)) {
+			fputs("dmenu-"VERSION", (C)opyright MMVI-MMVII Anselm R. Garbe\n", stdout);
+			exit(EXIT_SUCCESS);
+		}
 		else
-			eprint("usage: dmenu [-v] [-t <title>]\n");
-	}
-
+			eprint("usage: dmenu [-b] [-fn <font>] [-nb <color>] [-nf <color>] [-p <prompt>]\n"
+				"             [-sb <color>] [-sf <color>] [-t <seconds>] [-v]\n", stdout);
+	setlocale(LC_CTYPE, "");
 	dpy = XOpenDisplay(0);
 	if(!dpy)
-		eprint("dmenu: cannot open dpy\n");
+		eprint("dmenu: cannot open display\n");
 	screen = DefaultScreen(dpy);
 	root = RootWindow(dpy, screen);
 
-	maxname = readinput();
-
-	/* grab as early as possible, but after reading all items!!! */
+	/* Note, the select() construction allows to grab all keypresses as
+	 * early as possible, to not loose them. But if there is no standard
+	 * input supplied, we will make sure to exit after MAX_WAIT_STDIN
+	 * seconds. This is convenience behavior for rapid typers.
+	 */ 
 	while(XGrabKeyboard(dpy, root, True, GrabModeAsync,
 			 GrabModeAsync, CurrentTime) != GrabSuccess)
 		usleep(1000);
-
+	FD_ZERO(&rd);
+	FD_SET(STDIN_FILENO, &rd);
+	if(select(ConnectionNumber(dpy) + 1, &rd, NULL, NULL, &timeout) < 1)
+		goto UninitializedEnd;
+	maxname = readstdin();
 	/* style */
-	dc.bg = getcolor(BGCOLOR);
-	dc.fg = getcolor(FGCOLOR);
-	dc.border = getcolor(BORDERCOLOR);
-	setfont(FONT);
-
+	dc.norm[ColBG] = getcolor(normbg);
+	dc.norm[ColFG] = getcolor(normfg);
+	dc.sel[ColBG] = getcolor(selbg);
+	dc.sel[ColFG] = getcolor(selfg);
+	setfont(font);
+	/* menu window */
 	wa.override_redirect = 1;
 	wa.background_pixmap = ParentRelative;
 	wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask;
-
 	mx = my = 0;
 	mw = DisplayWidth(dpy, screen);
-	mh = dc.font.height + 4;
-
+	mh = dc.font.height + 2;
+	if(bottom)
+		my += DisplayHeight(dpy, screen) - mh;
 	win = XCreateWindow(dpy, root, mx, my, mw, mh, 0,
 			DefaultDepth(dpy, screen), CopyFromParent,
 			DefaultVisual(dpy, screen),
 			CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
-	XDefineCursor(dpy, win, XCreateFontCursor(dpy, XC_xterm));
-
 	/* 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(maxname)
-		cw = textw(maxname);
-	if(cw > mw / 3)
-		cw = mw / 3;
-
-	if(title) {
-		tw = textw(title);
-		if(tw > mw / 3)
-			tw = mw / 3;
-	}
-
-	cmdw = title ? tw : cw;
-
+		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;
-	input(text);
+	match(text);
 	XMapRaised(dpy, win);
 	drawmenu();
 	XSync(dpy, False);
 
 	/* main event loop */
-	while(!done && !XNextEvent(dpy, &ev)) {
+	while(running && !XNextEvent(dpy, &ev))
 		switch (ev.type) {
+		default:	/* ignore all crap */
+			break;
 		case KeyPress:
 			kpress(&ev.xkey);
 			break;
@@ -399,16 +448,24 @@ main(int argc, char *argv[])
 			if(ev.xexpose.count == 0)
 				drawmenu();
 			break;
-		default:
-			break;
 		}
-	}
 
-	XUngrabKeyboard(dpy, CurrentTime);
+	/* 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);
+UninitializedEnd:
+	XUngrabKeyboard(dpy, CurrentTime);
 	XCloseDisplay(dpy);
-
 	return ret;
 }