commit 881102a89f9bd5984aa12a44224033487c65bb70
parent 933153e6e7ac74b194305c1f6711b0a1145ca3dd
Author: z0noxz <z0noxz@mail.com>
Date: Thu, 29 Mar 2018 22:17:42 +0200
Adding new patch dwm-fsignal-6.1.diff, in wiki.
- Chris Noxz
Diffstat:
2 files changed, 143 insertions(+), 0 deletions(-)
diff --git a/dwm.suckless.org/patches/fsignal/dwm-fsignal-6.1.diff b/dwm.suckless.org/patches/fsignal/dwm-fsignal-6.1.diff
@@ -0,0 +1,97 @@
+diff -up dwm-6.1/config.def.h dwm-6.1_FSIGNAL/config.def.h
+--- dwm-6.1/config.def.h 2015-11-08 23:11:48.000000000 +0100
++++ dwm-6.1_FSIGNAL/config.def.h 2018-03-29 21:34:43.218114924 +0200
+@@ -111,3 +111,10 @@ static Button buttons[] = {
+ { ClkTagBar, MODKEY, Button3, toggletag, {0} },
+ };
+
++/* signal definitions */
++/* signum must be greater than 0 */
++/* trigger signals using `xsetroot -name "fsignal:<signum>"` */
++static Signal signals[] = {
++ /* signum function argument */
++ { 1, setlayout, {.v = 0} },
++};
+Only in dwm-6.1_FSIGNAL/: config.h
+diff -up dwm-6.1/dwm.c dwm-6.1_FSIGNAL/dwm.c
+--- dwm-6.1/dwm.c 2015-11-08 23:11:48.000000000 +0100
++++ dwm-6.1_FSIGNAL/dwm.c 2018-03-29 21:22:07.697560231 +0200
+@@ -107,6 +107,12 @@ typedef struct {
+ } Key;
+
+ typedef struct {
++ unsigned int signum;
++ void (*func)(const Arg *);
++ const Arg arg;
++} Signal;
++
++typedef struct {
+ const char *symbol;
+ void (*arrange)(Monitor *);
+ } Layout;
+@@ -177,6 +183,7 @@ static void grabbuttons(Client *c, int f
+ static void grabkeys(void);
+ static void incnmaster(const Arg *arg);
+ static void keypress(XEvent *e);
++static int fake_signal(void);
+ static void killclient(const Arg *arg);
+ static void manage(Window w, XWindowAttributes *wa);
+ static void mappingnotify(XEvent *e);
+@@ -1013,6 +1020,47 @@ keypress(XEvent *e)
+ keys[i].func(&(keys[i].arg));
+ }
+
++int
++fake_signal(void)
++{
++ char fsignal[256];
++ char indicator[9] = "fsignal:";
++ char str_signum[16];
++ int i, v, signum;
++ size_t len_fsignal, len_indicator = strlen(indicator);
++
++ // Get root name property
++ if (gettextprop(root, XA_WM_NAME, fsignal, sizeof(fsignal))) {
++ len_fsignal = strlen(fsignal);
++
++ // Check if this is indeed a fake signal
++ if (len_indicator > len_fsignal ? 0 : strncmp(indicator, fsignal, len_indicator) == 0) {
++ memcpy(str_signum, &fsignal[len_indicator], len_fsignal - len_indicator);
++ str_signum[len_fsignal - len_indicator] = '\0';
++
++ // Convert string value into managable integer
++ for (i = signum = 0; i < strlen(str_signum); i++) {
++ v = str_signum[i] - '0';
++ if (v >= 0 && v <= 9) {
++ signum = signum * 10 + v;
++ }
++ }
++
++ // Check if a signal was found, and if so handle it
++ if (signum)
++ for (i = 0; i < LENGTH(signals); i++)
++ if (signum == signals[i].signum && signals[i].func)
++ signals[i].func(&(signals[i].arg));
++
++ // A fake signal was sent
++ return 1;
++ }
++ }
++
++ // No fake signal was sent, so proceed with update
++ return 0;
++}
++
+ void
+ killclient(const Arg *arg)
+ {
+@@ -1233,7 +1281,8 @@ propertynotify(XEvent *e)
+ XPropertyEvent *ev = &e->xproperty;
+
+ if ((ev->window == root) && (ev->atom == XA_WM_NAME))
+- updatestatus();
++ if (!fake_signal())
++ updatestatus();
+ else if (ev->state == PropertyDelete)
+ return; /* ignore */
+ else if ((c = wintoclient(ev->window))) {
diff --git a/dwm.suckless.org/patches/fsignal/index.md b/dwm.suckless.org/patches/fsignal/index.md
@@ -0,0 +1,46 @@
+fsignal
+================
+
+Description
+-----------
+
+Send "fake signals" to dwm for handling, using xsetroot. This will not conflict
+with the status bar, which also is managed using xsetroot.
+
+Usage areas can for example be setting layout through dmenu, or other external
+applications.
+
+Usage
+-----
+
+A signal can be sent for example in this way `xsetroot -name "fsignal:1"` to
+send the signal '1'.
+
+Signal handlers are defined in config.h as:
+
+ static Signal signals[] = {
+ /* signum function argument*/
+ { 1, setlayout, {.v = 0} },
+ ...
+ };
+
+This can then be triggered through dmenu with this script:
+
+ #!/bin/bash
+ layouts="echo -e tiled\ncolumns\n..."
+ layout=$($layouts | dmenu "$@")
+
+ if [[ "$layout" == "tiled" ]];then xsetroot -name "fsignal:1"; fi
+ ...
+
+...or however you want to use it :)
+
+Download
+--------
+
+* [dwm-fsignal-6.1.diff](dwm-fsignal-6.1.diff)
+
+Authors
+-------
+
+* Chris Noxz - <chris@noxz.tech>
