changed Backspace/C-w behavior (now it only removes a single character)

[dmenu.git] / main.c

diff --git a/main.c b/main.c
index 54a3a12..b733feb 100644 (file)
--- a/main.c
+++ b/main.c
@@ -3,7 +3,6 @@
  * See LICENSE file for license details.
  */
 #include "dmenu.h"
-
 #include <ctype.h>
 #include <locale.h>
 #include <stdlib.h>
@@ -42,22 +41,6 @@ static Item *curr = NULL;
 static Window root;
 static Window win;
 
-static unsigned int
-textnw(const char *text, unsigned int len) {
-       XRectangle r;
-
-       if(dc.font.set) {
-               XmbTextExtents(dc.font.set, text, len, NULL, &r);
-               return r.width;
-       }
-       return XTextWidth(dc.font.xfont, text, len);
-}
-
-static unsigned int
-textw(const char *text) {
-       return textnw(text, strlen(text)) + dc.font.height;
-}
-
 static void
 calcoffsets(void) {
        unsigned int tw, w;
@@ -84,53 +67,6 @@ calcoffsets(void) {
        }
 }
 
-static void
-drawtext(const char *text, unsigned long col[ColLast]) {
-       int x, y, w, h;
-       static char buf[256];
-       unsigned int len, olen;
-       XGCValues gcv;
-       XRectangle r = { dc.x, dc.y, dc.w, dc.h };
-
-       XSetForeground(dpy, dc.gc, col[ColBG]);
-       XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
-       if(!text)
-               return;
-       w = 0;
-       olen = len = strlen(text);
-       if(len >= sizeof buf)
-               len = sizeof buf - 1;
-       memcpy(buf, text, len);
-       buf[len] = 0;
-       h = dc.font.ascent + dc.font.descent;
-       y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
-       x = dc.x + (h / 2);
-       /* shorten text if necessary */
-       while(len && (w = textnw(buf, len)) > dc.w - h)
-               buf[--len] = 0;
-       if(len < olen) {
-               if(len > 1)
-                       buf[len - 1] = '.';
-               if(len > 2)
-                       buf[len - 2] = '.';
-               if(len > 3)
-                       buf[len - 3] = '.';
-       }
-       if(w > dc.w)
-               return; /* too long */
-       gcv.foreground = col[ColFG];
-       if(dc.font.set) {
-               XChangeGC(dpy, dc.gc, GCForeground, &gcv);
-               XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc,
-                               x, y, buf, len);
-       }
-       else {
-               gcv.font = dc.font.xfont->fid;
-               XChangeGC(dpy, dc.gc, GCForeground | GCFont, &gcv);
-               XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
-       }
-}
-
 static void
 drawmenu(void) {
        Item *i;
@@ -172,8 +108,15 @@ drawmenu(void) {
        XFlush(dpy);
 }
 
+static void
+grabkeyboard(void) {
+       while(XGrabKeyboard(dpy, root, True, GrabModeAsync,
+                        GrabModeAsync, CurrentTime) != GrabSuccess)
+               usleep(1000);
+}
+
 static unsigned long
-getcolor(const char *colstr) {
+initcolor(const char *colstr) {
        Colormap cmap = DefaultColormap(dpy, screen);
        XColor color;
 
@@ -183,7 +126,7 @@ getcolor(const char *colstr) {
 }
 
 static void
-setfont(const char *fontstr) {
+initfont(const char *fontstr) {
        char *def, **missing;
        int i, n;
 
@@ -346,12 +289,8 @@ kpress(XKeyEvent * e) {
                }
                break;
        case XK_BackSpace:
-               if((i = len)) {
-                       prev_nitem = nitem;
-                       do {
-                               text[--i] = 0;
-                               match(text);
-                       } while(i && nitem && prev_nitem == nitem);
+               if(len) {
+                       text[--len] = 0;
                        match(text);
                }
                break;
@@ -482,10 +421,6 @@ main(int argc, char *argv[]) {
        XModifierKeymap *modmap;
        XSetWindowAttributes wa;
 
-       if(isatty(STDIN_FILENO)) {
-               fputs("error: dmenu can't run in an interactive shell\n", stdout);
-               usage();
-       }
        /* command line args */
        for(i = 1; i < argc; i++)
                if(!strncmp(argv[i], "-b", 3)) {
@@ -519,10 +454,14 @@ main(int argc, char *argv[]) {
                eprint("dmenu: cannot open display\n");
        screen = DefaultScreen(dpy);
        root = RootWindow(dpy, screen);
-       while(XGrabKeyboard(dpy, root, True, GrabModeAsync,
-                        GrabModeAsync, CurrentTime) != GrabSuccess)
-               usleep(1000);
-       maxname = readstdin();
+       if(isatty(STDIN_FILENO)) {
+               maxname = readstdin();
+               grabkeyboard();
+       }
+       else { /* prevent keypress loss */
+               grabkeyboard();
+               maxname = readstdin();
+       }
        /* init modifier map */
        modmap = XGetModifierMapping(dpy);
        for (i = 0; i < 8; i++) {
@@ -534,11 +473,11 @@ main(int argc, char *argv[]) {
        }
        XFreeModifiermap(modmap);
        /* style */
-       dc.norm[ColBG] = getcolor(normbg);
-       dc.norm[ColFG] = getcolor(normfg);
-       dc.sel[ColBG] = getcolor(selbg);
-       dc.sel[ColFG] = getcolor(selfg);
-       setfont(font);
+       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;