/*
 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
 * See LICENSE file for license details.
 */

#include "wm.h"

#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <X11/keysym.h>

/********** CUSTOMIZE **********/

const char *term[] = { 
	"aterm", "-tr", "+sb", "-bg", "black", "-fg", "white", "-fn",
	"-*-terminus-medium-*-*-*-13-*-*-*-*-*-iso10646-*",NULL
};
const char *browse[] = { "firefox", NULL };

static Key key[] = {
	{ Mod1Mask, XK_Return, (void (*)(void *))spawn, term },
	{ Mod1Mask, XK_w, (void (*)(void *))spawn, browse },
	{ Mod1Mask, XK_k, sel, "prev" }, 
	{ Mod1Mask, XK_j, sel, "next" }, 
	{ Mod1Mask, XK_space, toggle, NULL }, 
	{ Mod1Mask, XK_m, max, NULL }, 
	{ Mod1Mask | ShiftMask, XK_c, ckill, NULL }, 
	{ Mod1Mask | ShiftMask, XK_q, quit, NULL },
};

/********** CUSTOMIZE **********/

void
update_keys(void)
{
	unsigned int i, len;
	KeyCode code;

	len = sizeof(key) / sizeof(key[0]);
	for(i = 0; i < len; i++) {
		code = XKeysymToKeycode(dpy, key[i].keysym);
		XUngrabKey(dpy, code, key[i].mod, root);
		XGrabKey(dpy, code, key[i].mod, root, True, GrabModeAsync, GrabModeAsync);
	}
}

void
keypress(XEvent *e)
{
	XKeyEvent *ev = &e->xkey;
	unsigned int i, len;
	KeySym keysym;

	keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
	len = sizeof(key) / sizeof(key[0]);
	for(i = 0; i < len; i++)
		if((keysym == key[i].keysym) && (key[i].mod == ev->state)) {
			if(key[i].func)
				key[i].func(key[i].aux);
			return;
		}
}

#define ButtonMask      (ButtonPressMask | ButtonReleaseMask)
#define MouseMask       (ButtonMask | PointerMotionMask)

void
mresize(Client *c)
{
	XEvent ev;
	int ocx, ocy;

	ocx = c->x;
	ocy = c->y;
	if(XGrabPointer(dpy, root, False, MouseMask, GrabModeAsync, GrabModeAsync,
				None, cursor[CurResize], CurrentTime) != GrabSuccess)
		return;
	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w, c->h);
	for(;;) {
		XMaskEvent(dpy, MouseMask | ExposureMask, &ev);
		switch(ev.type) {
		default: break;
		case Expose:
			handler[Expose](&ev);
			break;
		case MotionNotify:
			XFlush(dpy);
			c->w = abs(ocx - ev.xmotion.x);
			c->h = abs(ocy - ev.xmotion.y);
			c->x = (ocx <= ev.xmotion.x) ? ocx : ocx - c->w;
			c->y = (ocy <= ev.xmotion.y) ? ocy : ocy - c->h;
			resize(c);
			break;
		case ButtonRelease:
			XUngrabPointer(dpy, CurrentTime);
			return;
		}
	}
}

void
mmove(Client *c)
{
	XEvent ev;
	int x1, y1, ocx, ocy, di;
	unsigned int dui;
	Window dummy;

	ocx = c->x;
	ocy = c->y;
	if(XGrabPointer(dpy, root, False, MouseMask, GrabModeAsync, GrabModeAsync,
				None, cursor[CurMove], CurrentTime) != GrabSuccess)
		return;
	XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
	for(;;) {
		XMaskEvent(dpy, MouseMask | ExposureMask, &ev);
		switch (ev.type) {
		default: break;
		case Expose:
			handler[Expose](&ev);
			break;
		case MotionNotify:
			XFlush(dpy);
			c->x = ocx + (ev.xmotion.x - x1);
			c->y = ocy + (ev.xmotion.y - y1);
			resize(c);
			break;
		case ButtonRelease:
			XUngrabPointer(dpy, CurrentTime);
			return;
		}
	}
}