/*

 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>

 * See LICENSE file for license details.

 */

#include <fcntl.h>

#include <stdlib.h>

#include <string.h>

#include <X11/keysym.h>

#include "wm.h"

/* local functions */

static void configurerequest(XEvent *e);

static void destroynotify(XEvent *e);

static void enternotify(XEvent *e);

static void leavenotify(XEvent *e);

static void expose(XEvent *e);

static void keypress(XEvent *e);

static void keymapnotify(XEvent *e);

static void maprequest(XEvent *e);

static void propertynotify(XEvent *e);

static void unmapnotify(XEvent *e);

void (*handler[LASTEvent]) (XEvent *) = {

	[ConfigureRequest] = configurerequest,

	[DestroyNotify] = destroynotify,

	[EnterNotify] = enternotify,

	[LeaveNotify] = leavenotify,

	[Expose] = expose,

	[KeyPress] = keypress,

	[KeymapNotify] = keymapnotify,

	[MapRequest] = maprequest,

	[PropertyNotify] = propertynotify,

	[UnmapNotify] = unmapnotify

};

unsigned int

flush_masked_events(long even_mask)

{

	XEvent ev;

	unsigned int n = 0;

	while(XCheckMaskEvent(dpy, even_mask, &ev)) n++;

	return n;

}

static void

configurerequest(XEvent *e)

{

#if 0

	XConfigureRequestEvent *ev = &e->xconfigurerequest;

	XWindowChanges wc;

	XRectangle *frect;

	Client *c;

	c = client_of_win(ev->window);

	ev->value_mask &= ~CWSibling;

	if(c) {

		gravitate_client(c, True);

		if(ev->value_mask & CWX)

			c->rect.x = ev->x;

		if(ev->value_mask & CWY)

			c->rect.y = ev->y;

		if(ev->value_mask & CWWidth)

			c->rect.width = ev->width;

		if(ev->value_mask & CWHeight)

			c->rect.height = ev->height;

		if(ev->value_mask & CWBorderWidth)

			c->border = ev->border_width;

		gravitate_client(c, False);

		if(c->frame) {

			if(c->sel->area->floating)

				frect=&c->sel->rect;

			else

				frect=&c->sel->revert;

			if(c->rect.width >= screen->rect.width && c->rect.height >= screen->rect.height) {

				frect->y = wc.y = -height_of_bar();

				frect->x = wc.x = -def.border;

			}

			else {

				frect->y = wc.y = c->rect.y - height_of_bar();

				frect->x = wc.x = c->rect.x - def.border;

			}

			frect->width = wc.width = c->rect.width + 2 * def.border;

			frect->height = wc.height = c->rect.height + def.border

				+ height_of_bar();

			wc.border_width = 1;

			wc.sibling = None;

			wc.stack_mode = ev->detail;

			if(c->sel->area->view != screen->sel)

				wc.x += 2 * screen->rect.width;

			if(c->sel->area->floating) {

				XConfigureWindow(dpy, c->framewin, ev->value_mask, &wc);

				configure_client(c);

			}

		}

	}

	wc.x = ev->x;

	wc.y = ev->y;

	wc.width = ev->width;

	wc.height = ev->height;

	if(c && c->frame) {

		wc.x = def.border;

		wc.y = height_of_bar();

		wc.width = c->sel->rect.width - 2 * def.border;

		wc.height = c->sel->rect.height - def.border - height_of_bar();

	}

	wc.border_width = 0;

	wc.sibling = None;

	wc.stack_mode = Above;

	ev->value_mask &= ~CWStackMode;

	ev->value_mask |= CWBorderWidth;

	XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);

	XFlush(dpy);

#endif

}

static void

destroynotify(XEvent *e)

{

#if 0

	Client *c;

	XDestroyWindowEvent *ev = &e->xdestroywindow;

	if((c = client_of_win(ev->window)))

		destroy_client(c);

#endif

}

static void

enternotify(XEvent *e)

{

#if 0

	XCrossingEvent *ev = &e->xcrossing;

	Client *c;

	if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)

		return;

	if((c = client_of_win(ev->window))) {

		Frame *f = c->sel;

		Area *a = f->area;

		if(a->mode == Colmax)

			c = a->sel->client;

		focus(c, False);

	}

	else if(ev->window == root) {

		sel_screen = True;

		draw_frames();

	}

#endif

}

static void

leavenotify(XEvent *e)

{

	XCrossingEvent *ev = &e->xcrossing;

	if((ev->window == root) && !ev->same_screen) {

		sel_screen = True;

		/*draw_frames();*/

	}

}

static void

expose(XEvent *e)

{

	XExposeEvent *ev = &e->xexpose;

	if(ev->count == 0) {

		if(ev->window == barwin)

			draw_bar();

	}

}

static void

keypress(XEvent *e)

{

#if 0

	XKeyEvent *ev = &e->xkey;

	KeySym k = 0;

	char buf[32];

	int n;

	static Frame *f;

	ev->state &= valid_mask;

	if((f = frame_of_win(ev->window))) {

		buf[0] = 0;

		n = XLookupString(ev, buf, sizeof(buf), &k, 0);

		if(IsFunctionKey(k) || IsKeypadKey(k) || IsMiscFunctionKey(k)

				|| IsPFKey(k) || IsPrivateKeypadKey(k))

			return;

		buf[n] = 0;

		blitz_kpress_input(&f->tagbar, ev->state, k, buf);

	}

	else

		key(root, ev->state, (KeyCode) ev->keycode);

#endif

}

static void

keymapnotify(XEvent *e)

{

#if 0

	update_keys();

#endif

}

static void

maprequest(XEvent *e)

{

	XMapRequestEvent *ev = &e->xmaprequest;

	static XWindowAttributes wa;

	if(!XGetWindowAttributes(dpy, ev->window, &wa))

		return;

	if(wa.override_redirect) {

		XSelectInput(dpy, ev->window,

				(StructureNotifyMask | PropertyChangeMask));

		return;

	}

}

static void

propertynotify(XEvent *e)

{

#if 0

	XPropertyEvent *ev = &e->xproperty;

	Client *c;

	if(ev->state == PropertyDelete)

		return; /* ignore */

	if((c = client_of_win(ev->window)))

		prop_client(c, ev);

#endif

}

static void

unmapnotify(XEvent *e)

{

#if 0

	Client *c;

	XUnmapEvent *ev = &e->xunmap;

	if((c = client_of_win(ev->window)))

		destroy_client(c);

#endif

}