1 files changed, 97 insertions, 5 deletions

diff --git a/src/sxwm.c b/src/sxwm.c
index 5000f2e..c8d50ba 100644
--- a/src/sxwm.c
+++ b/src/sxwm.c
@@ -11,12 +11,65 @@
 
 *///			(C) Abhinav Prasai 2025
 
-#include "sxwm.h"
+#include <err.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <X11/Xlib.h>
+#include <X11/XKBlib.h>
+
+#include "defs.h"
+
+typedef void (*EventHandler)(XEvent *);
+
+static void hdl_dummy(XEvent *xev);
+static void hdl_keypress(XEvent *xev);
+static void other_wm(void);
+static int other_wm_err(Display *dpy, XErrorEvent *ee);
+static void quit(void);
+static void run(void);
+static void setup(void);
+static void spawn(const char **cmd);
+static int xerr(Display *dpy, XErrorEvent *ee);
+static void xev_case(XEvent *xev);
+
+static Client clients[MAXCLIENTS] = {0};
+static EventHandler evtable[LASTEvent];
+static Display 	*dpy;
+static Window	root;
+
+#include "usercfg.h"
+
+static void
+hdl_dummy(XEvent *xev){}
 
 static void
-otherwm(void)
+hdl_keypress(XEvent *xev)
 {
-	XSetErrorHandler(otherwmerr);
+	KeySym keysym;
+	XKeyEvent *ev = &xev->xkey;
+	unsigned int modifiers;
+
+	modifiers = ev->state;
+	keysym = XkbKeycodeToKeysym(dpy, ev->keycode, 0, 0);
+
+	int lenbindings = sizeof(binds) / sizeof(binds[0]);
+	for (int i = 0; i < lenbindings; ++i) {
+		if (keysym == binds[i].keysym && modifiers == binds[i].mods) {
+			if (binds[i].is_func)
+				binds[i].action.fn();
+			else
+				spawn(binds[i].action.cmd);
+			return;
+		}
+	}
+}
+
+static void
+other_wm(void)
+{
+	XSetErrorHandler(other_wm_err);
 	XChangeWindowAttributes(dpy, root, CWEventMask, 
 			&(XSetWindowAttributes){.event_mask = SubstructureRedirectMask});
 	XSync(dpy, False);
@@ -25,7 +78,7 @@ otherwm(void)
 }
 
 static int
-otherwmerr(Display *dpy, XErrorEvent *ee)
+other_wm_err(Display *dpy, XErrorEvent *ee)
 {
 	errx(0, "sxwm: can't start because another window manager is already running");
 	return 0;
@@ -33,11 +86,18 @@ otherwmerr(Display *dpy, XErrorEvent *ee)
 }
 
 static void
+quit(void)
+{
+	errx(0, "sxwm: quitting...");
+}
+
+static void
 run(void)
 {
 	XEvent xev;
 	for (;;) {
 		XNextEvent(dpy, &xev);
+		xev_case(&xev);
 	}
 }
 
@@ -49,10 +109,33 @@ setup(void)
 		errx(0, "sxwm: can't open display.");
 
 	root = XDefaultRootWindow(dpy);
-	otherwm();
+	other_wm();
 	XSelectInput(dpy, root,
 		SubstructureRedirectMask | KeyPressMask | KeyReleaseMask
 	);
+
+	for (int i = 0; i < LASTEvent; ++i)
+		evtable[i] = hdl_dummy;
+
+	evtable[KeyPress] = hdl_keypress;
+}
+
+static void
+spawn(const char **cmd)
+{
+	if (!cmd) return;
+	printf("sxwm: attempting to spawn: %s\n", cmd[0]);
+
+	pid_t pid = fork();
+	if (pid == 0) {
+		if (dpy)
+			close(ConnectionNumber(dpy));
+		setsid();
+		execvp(cmd[0], (char *const*)cmd);
+		errx(1, "sxwm: execvp '%s' failed\n", cmd[0]);
+	} else if (pid < 0) {
+		fprintf(stderr, "sxwm: failed to fork process\n");
+	}
 }
 
 static int
@@ -64,6 +147,15 @@ xerr(Display *dpy, XErrorEvent *ee)
 	if (dpy && ee) return 0;
 }
 
+static void
+xev_case(XEvent *xev)
+{
+	if (xev->type >= 0 && xev->type < LASTEvent)
+		evtable[xev->type](xev);
+	else
+		printf("sxwm: invalid event type: %d\n", xev->type);
+}
+
 int
 main(int ac, char **av)
 {