garbeam@5: /*
garbeam@5:  * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
garbeam@5:  * See LICENSE file for license details.
garbeam@5:  */
garbeam@5: 
garbeam@5: #include <fcntl.h>
garbeam@5: #include <stdlib.h>
garbeam@5: #include <string.h>
garbeam@5: #include <X11/keysym.h>
garbeam@13: #include <X11/Xatom.h>
garbeam@5: 
garbeam@5: #include "wm.h"
garbeam@5: 
garbeam@5: /* local functions */
garbeam@18: static void buttonpress(XEvent *e);
garbeam@5: static void configurerequest(XEvent *e);
garbeam@5: static void destroynotify(XEvent *e);
garbeam@5: static void enternotify(XEvent *e);
garbeam@5: static void leavenotify(XEvent *e);
garbeam@5: static void expose(XEvent *e);
garbeam@5: static void keymapnotify(XEvent *e);
garbeam@5: static void maprequest(XEvent *e);
garbeam@5: static void propertynotify(XEvent *e);
garbeam@5: static void unmapnotify(XEvent *e);
garbeam@5: 
garbeam@5: void (*handler[LASTEvent]) (XEvent *) = {
garbeam@18: 	[ButtonPress] = buttonpress,
garbeam@5: 	[ConfigureRequest] = configurerequest,
garbeam@5: 	[DestroyNotify] = destroynotify,
garbeam@5: 	[EnterNotify] = enternotify,
garbeam@5: 	[LeaveNotify] = leavenotify,
garbeam@5: 	[Expose] = expose,
garbeam@5: 	[KeyPress] = keypress,
garbeam@5: 	[KeymapNotify] = keymapnotify,
garbeam@5: 	[MapRequest] = maprequest,
garbeam@5: 	[PropertyNotify] = propertynotify,
garbeam@5: 	[UnmapNotify] = unmapnotify
garbeam@5: };
garbeam@5: 
garbeam@26: void
garbeam@18: discard_events(long even_mask)
garbeam@5: {
garbeam@5: 	XEvent ev;
garbeam@26: 	while(XCheckMaskEvent(dpy, even_mask, &ev));
garbeam@5: }
garbeam@5: 
garbeam@5: static void
garbeam@18: buttonpress(XEvent *e)
garbeam@18: {
garbeam@18: 	XButtonPressedEvent *ev = &e->xbutton;
garbeam@18: 	Client *c;
garbeam@18: 
garbeam@18: 	if((c = getclient(ev->window))) {
garbeam@26: 		raise(c);
garbeam@18: 		switch(ev->button) {
garbeam@18: 		default:
garbeam@18: 			break;
garbeam@18: 		case Button1:
garbeam@18: 			mmove(c);
garbeam@18: 			break;
garbeam@18: 		case Button2:
garbeam@26: 			lower(c);
garbeam@18: 			break;
garbeam@18: 		case Button3:
garbeam@18: 			mresize(c);
garbeam@18: 			break;
garbeam@18: 		}
garbeam@18: 	}
garbeam@18: }
garbeam@18: 
garbeam@18: static void
garbeam@5: configurerequest(XEvent *e)
garbeam@5: {
garbeam@5: 	XConfigureRequestEvent *ev = &e->xconfigurerequest;
garbeam@5: 	XWindowChanges wc;
garbeam@5: 	Client *c;
garbeam@5: 
garbeam@5: 	ev->value_mask &= ~CWSibling;
garbeam@18: 	if((c = getclient(ev->window))) {
garbeam@29: 		gravitate(c, True);
garbeam@5: 		if(ev->value_mask & CWX)
garbeam@20: 			c->x = ev->x;
garbeam@5: 		if(ev->value_mask & CWY)
garbeam@20: 			c->y = ev->y;
garbeam@5: 		if(ev->value_mask & CWWidth)
garbeam@20: 			c->w = ev->width;
garbeam@5: 		if(ev->value_mask & CWHeight)
garbeam@20: 			c->h = ev->height;
garbeam@29: 		if(ev->value_mask & CWBorderWidth)
garbeam@29: 			c->border = ev->border_width;
garbeam@29: 		gravitate(c, False);
garbeam@5: 	}
garbeam@5: 
garbeam@5: 	wc.x = ev->x;
garbeam@5: 	wc.y = ev->y;
garbeam@5: 	wc.width = ev->width;
garbeam@5: 	wc.height = ev->height;
garbeam@25: 	wc.border_width = 1;
garbeam@5: 	wc.sibling = None;
garbeam@5: 	wc.stack_mode = Above;
garbeam@5: 	ev->value_mask &= ~CWStackMode;
garbeam@5: 	ev->value_mask |= CWBorderWidth;
garbeam@5: 	XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
garbeam@5: 	XFlush(dpy);
garbeam@5: }
garbeam@5: 
garbeam@5: static void
garbeam@5: destroynotify(XEvent *e)
garbeam@5: {
garbeam@5: 	Client *c;
garbeam@5: 	XDestroyWindowEvent *ev = &e->xdestroywindow;
garbeam@5: 
garbeam@11: 	if((c = getclient(ev->window)))
garbeam@11: 		unmanage(c);
garbeam@5: }
garbeam@5: 
garbeam@5: static void
garbeam@5: enternotify(XEvent *e)
garbeam@5: {
garbeam@5: 	XCrossingEvent *ev = &e->xcrossing;
garbeam@5: 	Client *c;
garbeam@5: 
garbeam@5: 	if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
garbeam@5: 		return;
garbeam@5: 
garbeam@13: 	if((c = getclient(ev->window)))
garbeam@13: 		focus(c);
garbeam@26: 	else if(ev->window == root)
garbeam@5: 		sel_screen = True;
garbeam@5: }
garbeam@5: 
garbeam@5: static void
garbeam@5: leavenotify(XEvent *e)
garbeam@5: {
garbeam@5: 	XCrossingEvent *ev = &e->xcrossing;
garbeam@5: 
garbeam@26: 	if((ev->window == root) && !ev->same_screen)
garbeam@5: 		sel_screen = True;
garbeam@5: }
garbeam@5: 
garbeam@5: static void
garbeam@5: expose(XEvent *e)
garbeam@5: {
garbeam@5: 	XExposeEvent *ev = &e->xexpose;
garbeam@21: 	Client *c;
garbeam@5: 
garbeam@5: 	if(ev->count == 0) {
garbeam@23: 		if((c = gettitle(ev->window)))
garbeam@21: 			draw_client(c);
garbeam@21: 		else if(ev->window == barwin)
garbeam@5: 			draw_bar();
garbeam@5: 	}
garbeam@5: }
garbeam@5: 
garbeam@5: static void
garbeam@5: keymapnotify(XEvent *e)
garbeam@5: {
garbeam@5: 	update_keys();
garbeam@5: }
garbeam@5: 
garbeam@5: static void
garbeam@5: maprequest(XEvent *e)
garbeam@5: {
garbeam@5: 	XMapRequestEvent *ev = &e->xmaprequest;
garbeam@5: 	static XWindowAttributes wa;
garbeam@5: 
garbeam@5: 	if(!XGetWindowAttributes(dpy, ev->window, &wa))
garbeam@5: 		return;
garbeam@5: 
garbeam@5: 	if(wa.override_redirect) {
garbeam@5: 		XSelectInput(dpy, ev->window,
garbeam@5: 				(StructureNotifyMask | PropertyChangeMask));
garbeam@5: 		return;
garbeam@5: 	}
garbeam@5: 
garbeam@10: 	if(!getclient(ev->window))
garbeam@10: 		manage(ev->window, &wa);
garbeam@5: }
garbeam@5: 
garbeam@5: static void
garbeam@5: propertynotify(XEvent *e)
garbeam@5: {
garbeam@5: 	XPropertyEvent *ev = &e->xproperty;
garbeam@5: 	Client *c;
garbeam@5: 
garbeam@5: 	if(ev->state == PropertyDelete)
garbeam@5: 		return; /* ignore */
garbeam@5: 
garbeam@13: 	if(ev->atom == wm_atom[WMProtocols]) {
garbeam@13: 		c->proto = win_proto(c->win);
garbeam@13: 		return;
garbeam@13: 	}
garbeam@13: 	if((c = getclient(ev->window))) {
garbeam@13: 		switch (ev->atom) {
garbeam@13: 			default: break;
garbeam@13: 			case XA_WM_TRANSIENT_FOR:
garbeam@13: 				XGetTransientForHint(dpy, c->win, &c->trans);
garbeam@13: 				break;
garbeam@20: 				update_size(c);
garbeam@13: 			case XA_WM_NORMAL_HINTS:
garbeam@20: 				update_size(c);
garbeam@13: 				break;
garbeam@13: 		}
garbeam@13: 		if(ev->atom == XA_WM_NAME || ev->atom == net_atom[NetWMName]) {
garbeam@13: 			update_name(c);
garbeam@22: 			if(c == stack)
garbeam@22: 				draw_bar();
garbeam@22: 			else
garbeam@22: 				draw_client(c);
garbeam@13: 		}
garbeam@13: 	}
garbeam@5: }
garbeam@5: 
garbeam@5: static void
garbeam@5: unmapnotify(XEvent *e)
garbeam@5: {
garbeam@5: 	Client *c;
garbeam@5: 	XUnmapEvent *ev = &e->xunmap;
garbeam@5: 
garbeam@10: 	if((c = getclient(ev->window)))
garbeam@10: 		unmanage(c);
garbeam@5: }