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

#include <stdlib.h>
#include <X11/keysym.h>
#include <X11/Xatom.h>

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

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

Key key[] = {
	/* modifier				key			function	arguments */
	{ ControlMask,			XK_0,		appendtag,	{ .i = Tscratch } }, 
	{ ControlMask,			XK_1,		appendtag,	{ .i = Tdev } }, 
	{ ControlMask,			XK_2,		appendtag,	{ .i = Twww } }, 
	{ ControlMask,			XK_3,		appendtag,	{ .i = Twork } }, 
	{ Mod1Mask,				XK_0,		view,		{ .i = Tscratch } }, 
	{ Mod1Mask,				XK_1,		view,		{ .i = Tdev } }, 
	{ Mod1Mask,				XK_2,		view,		{ .i = Twww } }, 
	{ Mod1Mask,				XK_3,		view,		{ .i = Twork } }, 
	{ Mod1Mask,				XK_j,		focusnext,		{ 0 } }, 
	{ Mod1Mask,				XK_k,		focusprev,		{ 0 } },
	{ Mod1Mask,				XK_m,		maximize,		{ 0 } }, 
	{ Mod1Mask,				XK_space,	dotile,		{ 0 } }, 
	{ Mod1Mask,				XK_Return,	zoom,		{ 0 } },
	{ ControlMask|ShiftMask,XK_0,		heretag,	{ .i = Tscratch } }, 
	{ ControlMask|ShiftMask,XK_1,		heretag,	{ .i = Tdev } }, 
	{ ControlMask|ShiftMask,XK_2,		heretag,	{ .i = Twww } }, 
	{ ControlMask|ShiftMask,XK_3,		heretag,	{ .i = Twork } }, 
	{ Mod1Mask|ShiftMask,	XK_0,		replacetag,		{ .i = Tscratch } }, 
	{ Mod1Mask|ShiftMask,	XK_1,		replacetag,		{ .i = Tdev } }, 
	{ Mod1Mask|ShiftMask,	XK_2,		replacetag,		{ .i = Twww } }, 
	{ Mod1Mask|ShiftMask,	XK_3,		replacetag,		{ .i = Twork } }, 
	{ Mod1Mask|ShiftMask,	XK_c,		killclient,		{ 0 } }, 
	{ Mod1Mask|ShiftMask,	XK_g,		spawn,		{ .argv = gimp } },
	{ Mod1Mask|ShiftMask,	XK_l,		spawn,		{ .argv = xlock } },
	{ Mod1Mask|ShiftMask,	XK_q,		quit,		{ 0 } },
	{ Mod1Mask|ShiftMask,	XK_space,	dofloat,	{ 0 } }, 
	{ Mod1Mask|ShiftMask,	XK_w,		spawn,		{ .argv = browse } },
	{ Mod1Mask|ShiftMask,	XK_Return,	spawn,		{ .argv = term } },
};

/* static */

static void
movemouse(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:
			XSync(dpy, False);
			*c->x = ocx + (ev.xmotion.x - x1);
			*c->y = ocy + (ev.xmotion.y - y1);
			resize(c, False);
			break;
		case ButtonRelease:
			XUngrabPointer(dpy, CurrentTime);
			return;
		}
	}
}

static void
resizemouse(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:
			XSync(dpy, False);
			*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, True);
			break;
		case ButtonRelease:
			XUngrabPointer(dpy, CurrentTime);
			return;
		}
	}
}

static void
buttonpress(XEvent *e)
{
	int x;
	Arg a;
	XButtonPressedEvent *ev = &e->xbutton;
	Client *c;

	if(barwin == ev->window) {
		switch(ev->button) {
		default:
			x = 0;
			for(a.i = 0; a.i < TLast; a.i++) {
				x += textw(tags[a.i]);
				if(ev->x < x) {
					view(&a);
					break;
				}
			}
			break;
		case Button4:
			a.i = (tsel + 1 < TLast) ? tsel + 1 : 0;
			view(&a);
			break;
		case Button5:
			a.i = (tsel - 1 >= 0) ? tsel - 1 : TLast - 1;
			view(&a);
			break;
		}
	}
	else if((c = getclient(ev->window))) {
		if(arrange == dotile && !c->isfloat) {
			if((ev->state & ControlMask) && (ev->button == Button1))
				zoom(NULL);
			return;
		}
		/* floating windows */
		higher(c);
		switch(ev->button) {
		default:
			break;
		case Button1:
			movemouse(c);
			break;
		case Button2:
			lower(c);
			break;
		case Button3:
			resizemouse(c);
			break;
		}
	}
}

static void
configurerequest(XEvent *e)
{
	XConfigureRequestEvent *ev = &e->xconfigurerequest;
	XWindowChanges wc;
	Client *c;

	ev->value_mask &= ~CWSibling;
	if((c = getclient(ev->window))) {
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