add key bindings for moving to the word start or end

[dmenu.git] / dmenu.c

diff --git a/dmenu.c b/dmenu.c
index 91330f1..5e9c367 100644 (file)
--- a/dmenu.c
+++ b/dmenu.c
@@ -287,6 +287,22 @@ nextrune(int inc)
        return n;
 }
 
+static void
+movewordedge(int dir)
+{
+       if (dir < 0) { /* move cursor to the start of the word*/
+               while (cursor > 0 && strchr(worddelimiters, text[nextrune(-1)]))
+                       cursor = nextrune(-1);
+               while (cursor > 0 && !strchr(worddelimiters, text[nextrune(-1)]))
+                       cursor = nextrune(-1);
+       } else { /* move cursor to the end of the word */
+               while (text[cursor] && strchr(worddelimiters, text[cursor]))
+                       cursor = nextrune(+1);
+               while (text[cursor] && !strchr(worddelimiters, text[cursor]))
+                       cursor = nextrune(+1);
+       }
+}
+
 static void
 keypress(XKeyEvent *ev)
 {
@@ -334,6 +350,14 @@ keypress(XKeyEvent *ev)
                        XConvertSelection(dpy, (ev->state & ShiftMask) ? clip : XA_PRIMARY,
                                          utf8, utf8, win, CurrentTime);
                        return;
+               case XK_Left:
+                       movewordedge(-1);
+                       ksym = NoSymbol;
+                       break;
+               case XK_Right:
+                       movewordedge(+1);
+                       ksym = NoSymbol;
+                       break;
                case XK_Return:
                case XK_KP_Enter:
                        break;
@@ -345,6 +369,14 @@ keypress(XKeyEvent *ev)
                }
        else if (ev->state & Mod1Mask)
                switch(ksym) {
+               case XK_b:
+                       movewordedge(-1);
+                       ksym = NoSymbol;
+                       break;
+               case XK_f:
+                       movewordedge(+1);
+                       ksym = NoSymbol;
+                       break;
                case XK_g: ksym = XK_Home;  break;
                case XK_G: ksym = XK_End;   break;
                case XK_h: ksym = XK_Up;    break;
@@ -359,6 +391,8 @@ keypress(XKeyEvent *ev)
                if (!iscntrl(*buf))
                        insert(buf, len);
                break;
+       case NoSymbol:
+               break;
        case XK_Delete:
                if (text[cursor] == '\0')
                        return;
@@ -467,10 +501,12 @@ paste(void)
        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);
+       if (XGetWindowProperty(dpy, win, utf8, 0, (sizeof text / 4) + 1, False,
+                          utf8, &da, &di, &dl, &dl, (unsigned char **)&p)
+           == Success && p) {
+               insert(p, (q = strchr(p, '\n')) ? q - p : (ssize_t)strlen(p));
+               XFree(p);
+       }
        drawmenu();
 }
 
@@ -539,7 +575,7 @@ run(void)
 static void
 setup(void)
 {
-       int x, y, i = 0;
+       int x, y, i, j;
        unsigned int du;
        XSetWindowAttributes swa;
        XIM xim;
@@ -549,9 +585,8 @@ setup(void)
 #ifdef XINERAMA
        XineramaScreenInfo *info;
        Window pw;
-       int a, j, di, n, area = 0;
+       int a, di, n, area = 0;
 #endif
-
        /* init appearance */
        for (j = 0; j < SchemeLast; j++)
                scheme[j] = drw_scm_create(drw, colors[j], 2);
@@ -564,6 +599,7 @@ setup(void)
        lines = MAX(lines, 0);
        mh = (lines + 1) * bh;
 #ifdef XINERAMA
+       i = 0;
        if (parentwin == root && (info = XineramaQueryScreens(dpy, &n))) {
                XGetInputFocus(dpy, &w, &di);
                if (mon >= 0 && mon < n)