On Thu, Oct 04, 2007 at 03:01:12PM +0330, Ali Gholami Rudi wrote:
> I've written a patch to allow prefixed keys.
>
> With this patch you can bind ``C-t k`` (where ``C-t`` is your prefix),
> for instance, to kill window or ``C-t 1`` to ``view("1")``. You can
> change the prefix by editing the line that contains the ``setprefix``
> function in the config file.
>
> I've written this patch because:
>
> * Some of dwm's default keys conflict with emacs keybinding
> * Some emacs users, including me, don't like to push three buttons at
> the same time very oftern
> * If ``? x`` (? is the prefix and x is a tag) is bound to view("x"),
> letters can be a tag like digits.
> * Prefixed and normal keys can coexist
>
> I didn't know dwm's policy for submitting patches; so I've attached
> the outcome of ``hg export``.
In the last patch prefixed keys could not contain modifiers such as
``? shift-1`` (where ``?`` is the prefix). This patch fixes it.
So now one can bind:
* C-; x -> view("x")
* C-; shift-x -> tag("x")
* C-; C-x -> toggleview("x")
* C-; C-shift-x -> toggletag("x")
for both letters and digits (where ``C-;`` is the prefix).
--Ali
# HG changeset patch
# User Ali Gholami Rudi <[EMAIL PROTECTED]>
# Date 1191574032 -12600
# Node ID f66c2d9024734507164a26603a6fd29db54710ad
# Parent 3027df4b2c0d6a894818f23643ae453b99e98591
Added prefixed keys
diff --git a/config.def.h b/config.def.h
--- a/config.def.h
+++ b/config.def.h
@@ -90,4 +90,12 @@ Key keys[] = { \
{ MODKEY|ControlMask|ShiftMask, XK_8, toggletag, tags[7] }, \
{ MODKEY|ControlMask|ShiftMask, XK_9, toggletag, tags[8] }, \
{ MODKEY|ShiftMask, XK_q, quit, NULL }, \
+ { ControlMask, XK_t, setprefix, NULL }, \
};
+
+#define PREFIXEDKEYS \
+Key prefixedkeys[] = { \
+ /* modifier key function argument */ \
+ { 0, XK_1, view, tags[0] }, \
+ { ShiftMask, XK_1, tag, tags[0] }, \
+};
diff --git a/dwm.c b/dwm.c
--- a/dwm.c
+++ b/dwm.c
@@ -143,6 +143,7 @@ long getstate(Window w);
long getstate(Window w);
Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
void grabbuttons(Client *c, Bool focused);
+void handlekey(Key keys[], unsigned int len, XEvent *e);
unsigned int idxoftag(const char *tag);
void initfont(const char *fontstr);
Bool isarrange(void (*func)());
@@ -167,6 +168,7 @@ void setclientstate(Client *c, long stat
void setclientstate(Client *c, long state);
void setlayout(const char *arg);
void setmwfact(const char *arg);
+void setprefix(const char *arg);
void setup(void);
void spawn(const char *arg);
void tag(const char *arg);
@@ -228,6 +230,7 @@ DC dc = {0};
DC dc = {0};
Window barwin, root;
Regs *regs = NULL;
+Bool prefix = False;
/* configuration, allows nested code to access above variables */
#include "config.h"
@@ -840,6 +843,23 @@ grabbuttons(Client *c, Bool focused) {
GrabModeAsync, GrabModeSync, None, None);
}
+void
+handlekey(Key keys[], unsigned int len, XEvent *e) {
+ XKeyEvent *ev;
+ KeySym keysym;
+ unsigned int i;
+
+ ev = &e->xkey;
+ keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
+ for(i = 0; i < len; i++)
+ if(keysym == keys[i].keysym
+ && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state))
+ {
+ if(keys[i].func)
+ keys[i].func(keys[i].arg);
+ }
+}
+
unsigned int
idxoftag(const char *tag) {
unsigned int i;
@@ -936,13 +956,20 @@ void
void
keypress(XEvent *e) {
KEYS
+ PREFIXEDKEYS
unsigned int len = sizeof keys / sizeof keys[0];
+ unsigned int prefixedlen = sizeof prefixedkeys / sizeof prefixedkeys[0];
unsigned int i;
KeyCode code;
KeySym keysym;
XKeyEvent *ev;
if(!e) { /* grabkeys */
+ if (prefix) {
+ XGrabKey(dpy, AnyKey, AnyModifier, root, True,
+ GrabModeAsync, GrabModeAsync);
+ return;
+ }
XUngrabKey(dpy, AnyKey, AnyModifier, root);
for(i = 0; i < len; i++) {
code = XKeysymToKeycode(dpy, keys[i].keysym);
@@ -957,15 +984,17 @@ keypress(XEvent *e) {
}
return;
}
- ev = &e->xkey;
- keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
- for(i = 0; i < len; i++)
- if(keysym == keys[i].keysym
- && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state))
- {
- if(keys[i].func)
- keys[i].func(keys[i].arg);
- }
+ if (prefix) {
+ ev = &e->xkey;
+ keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
+ if (!IsModifierKey(keysym)) {
+ handlekey(prefixedkeys, prefixedlen, e);
+ prefix = False;
+ keypress(NULL);
+ }
+ }
+ else
+ handlekey(keys, len, e);
}
void
@@ -1418,6 +1447,12 @@ setmwfact(const char *arg) {
}
void
+setprefix(const char *arg) {
+ prefix = True;
+ keypress(NULL);
+}
+
+void
setup(void) {
int d;
unsigned int i, j, mask;
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