arg@644: /* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
garbeam@5:  * See LICENSE file for license details.
garbeam@5:  */
garbeam@76: #include "dwm.h"
garbeam@5: #include <stdlib.h>
garbeam@5: #include <X11/keysym.h>
garbeam@13: #include <X11/Xatom.h>
garbeam@5: 
arg@146: /* static */
arg@114: 
arg@114: typedef struct {
arg@114: 	unsigned long mod;
arg@114: 	KeySym keysym;
arg@589: 	void (*func)(Arg *arg);
arg@114: 	Arg arg;
arg@114: } Key;
arg@114: 
arg@146: KEYS
garbeam@75: 
arg@291: #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
arg@538: #define MOUSEMASK		(BUTTONMASK | PointerMotionMask)
garbeam@5: 
garbeam@77: static void
arg@461: movemouse(Client *c) {
garbeam@77: 	int x1, y1, ocx, ocy, di;
garbeam@77: 	unsigned int dui;
garbeam@77: 	Window dummy;
arg@123: 	XEvent ev;
garbeam@77: 
arg@115: 	ocx = c->x;
arg@115: 	ocy = c->y;
arg@148: 	if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
arg@123: 			None, cursor[CurMove], CurrentTime) != GrabSuccess)
garbeam@77: 		return;
arg@482: 	c->ismax = False;
garbeam@77: 	XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
garbeam@77: 	for(;;) {
arg@708: 		XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev);
garbeam@77: 		switch (ev.type) {
arg@490: 		case ButtonRelease:
arg@708: 			resize(c, True);
arg@490: 			XUngrabPointer(dpy, CurrentTime);
arg@490: 			return;
arg@708: 		case ConfigureRequest:
garbeam@77: 		case Expose:
arg@708: 		case MapRequest:
arg@708: 			handler[ev.type](&ev);
garbeam@77: 			break;
garbeam@77: 		case MotionNotify:
garbeam@79: 			XSync(dpy, False);
arg@115: 			c->x = ocx + (ev.xmotion.x - x1);
arg@115: 			c->y = ocy + (ev.xmotion.y - y1);
arg@565: 			if(abs(wax + c->x) < SNAP)
arg@565: 				c->x = wax;
arg@708: 			else if(abs((wax + waw) - (c->x + c->w + 2 * c->border)) < SNAP)
arg@708: 				c->x = wax + waw - c->w - 2 * c->border;
arg@565: 			if(abs(way - c->y) < SNAP)
arg@565: 				c->y = way;
arg@708: 			else if(abs((way + wah) - (c->y + c->h + 2 * c->border)) < SNAP)
arg@708: 				c->y = way + wah - c->h - 2 * c->border;
arg@708: 			resize(c, False);
garbeam@77: 			break;
garbeam@77: 		}
garbeam@77: 	}
garbeam@77: }
garbeam@77: 
garbeam@77: static void
arg@461: resizemouse(Client *c) {
garbeam@77: 	int ocx, ocy;
arg@268: 	int nw, nh;
arg@123: 	XEvent ev;
garbeam@77: 
arg@115: 	ocx = c->x;
arg@115: 	ocy = c->y;
arg@148: 	if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
arg@532: 			None, cursor[CurResize], CurrentTime) != GrabSuccess)
garbeam@77: 		return;
arg@482: 	c->ismax = False;
arg@708: 	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->border - 1, c->h + c->border - 1);
garbeam@77: 	for(;;) {
arg@708: 		XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask , &ev);
garbeam@77: 		switch(ev.type) {
arg@490: 		case ButtonRelease:
arg@708: 			resize(c, True);
arg@490: 			XUngrabPointer(dpy, CurrentTime);
arg@490: 			return;
arg@708: 		case ConfigureRequest:
garbeam@77: 		case Expose:
arg@708: 		case MapRequest:
arg@708: 			handler[ev.type](&ev);
garbeam@77: 			break;
garbeam@77: 		case MotionNotify:
garbeam@79: 			XSync(dpy, False);
arg@708: 			nw = ev.xmotion.x - ocx - 2 * c->border + 1;
arg@708: 			c->w = nw > 0 ? nw : 1;
arg@708: 			nh = ev.xmotion.y - ocy - 2 * c->border + 1;
arg@708: 			c->h = nh > 0 ? nh : 1;
arg@708: 			resize(c, True);
garbeam@77: 			break;
garbeam@77: 		}
garbeam@77: 	}
garbeam@77: }
garbeam@73: 
garbeam@73: static void
arg@461: buttonpress(XEvent *e) {
garbeam@73: 	int x;
garbeam@73: 	Arg a;
arg@123: 	Client *c;
garbeam@18: 	XButtonPressedEvent *ev = &e->xbutton;
garbeam@18: 
garbeam@73: 	if(barwin == ev->window) {
arg@362: 		x = 0;
arg@362: 		for(a.i = 0; a.i < ntags; a.i++) {
arg@362: 			x += textw(tags[a.i]);
arg@362: 			if(ev->x < x) {
arg@399: 				if(ev->button == Button1) {
arg@398: 					if(ev->state & MODKEY)
arg@398: 						tag(&a);
arg@398: 					else
arg@398: 						view(&a);
arg@399: 				}
arg@399: 				else if(ev->button == Button3) {
arg@398: 					if(ev->state & MODKEY)
arg@398: 						toggletag(&a);
arg@398: 					else
arg@398: 						toggleview(&a);
arg@394: 				}
arg@362: 				return;
garbeam@73: 			}
garbeam@73: 		}
arg@676: 		if(ev->x < x + bmw)
arg@676: 			switch(ev->button) {
arg@676: 			case Button1:
arg@676: 				togglemode(NULL);
arg@676: 				break;
arg@676: 			case Button4:
arg@676: 				a.i = 1;
arg@676: 				incnmaster(&a);
arg@676: 				break;
arg@676: 			case Button5:
arg@676: 				a.i = -1;
arg@676: 				incnmaster(&a);
arg@676: 				break;
arg@676: 			}
garbeam@73: 	}
garbeam@58: 	else if((c = getclient(ev->window))) {
arg@143: 		focus(c);
arg@473: 		if(CLEANMASK(ev->state) != MODKEY)
arg@318: 			return;
arg@400: 		if(ev->button == Button1 && (arrange == dofloat || c->isfloat)) {
arg@487: 			restack();
arg@399: 			movemouse(c);
arg@399: 		}
arg@399: 		else if(ev->button == Button2)
arg@248: 			zoom(NULL);
arg@550: 		else if(ev->button == Button3 && (arrange == dofloat || c->isfloat) &&
arg@550: 				!c->isfixed) {
arg@487: 			restack();
arg@399: 			resizemouse(c);
garbeam@18: 		}
garbeam@18: 	}
garbeam@18: }
garbeam@18: 
garbeam@18: static void
arg@461: configurerequest(XEvent *e) {
arg@286: 	unsigned long newmask;
arg@123: 	Client *c;
garbeam@5: 	XConfigureRequestEvent *ev = &e->xconfigurerequest;
garbeam@5: 	XWindowChanges wc;
garbeam@5: 
garbeam@18: 	if((c = getclient(ev->window))) {
arg@488: 		c->ismax = False;
arg@195: 		if(ev->value_mask & CWX)
arg@195: 			c->x = ev->x;
arg@195: 		if(ev->value_mask & CWY)
arg@195: 			c->y = ev->y;
arg@195: 		if(ev->value_mask & CWWidth)
arg@195: 			c->w = ev->width;
arg@195: 		if(ev->value_mask & CWHeight)
arg@195: 			c->h = ev->height;
garbeam@29: 		if(ev->value_mask & CWBorderWidth)
arg@164: 			c->border = ev->border_width;
arg@164: 		wc.x = c->x;
arg@164: 		wc.y = c->y;
arg@164: 		wc.width = c->w;
arg@164: 		wc.height = c->h;
arg@164: 		newmask = ev->value_mask & (~(CWSibling | CWStackMode | CWBorderWidth));
arg@164: 		if(newmask)
arg@164: 			XConfigureWindow(dpy, c->win, newmask, &wc);
arg@491: 		else
arg@491: 			configure(c);
arg@195: 		XSync(dpy, False);
arg@505: 		if(c->isfloat) {
arg@708: 			resize(c, False);
arg@508: 			if(!isvisible(c))
arg@687: 				XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
arg@505: 		}
arg@196: 		else
arg@533: 			arrange();
garbeam@5: 	}
arg@164: 	else {
arg@164: 		wc.x = ev->x;
arg@164: 		wc.y = ev->y;
arg@164: 		wc.width = ev->width;
arg@164: 		wc.height = ev->height;
arg@164: 		wc.border_width = ev->border_width;
arg@164: 		wc.sibling = ev->above;
arg@164: 		wc.stack_mode = ev->detail;
arg@164: 		XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
arg@195: 		XSync(dpy, False);
arg@164: 	}
garbeam@5: }
garbeam@5: 
garbeam@5: static void
arg@461: destroynotify(XEvent *e) {
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
arg@461: enternotify(XEvent *e) {
arg@123: 	Client *c;
garbeam@5: 	XCrossingEvent *ev = &e->xcrossing;
garbeam@5: 
arg@232: 	if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
garbeam@5: 		return;
arg@687: 	if((c = getclient(ev->window)) && isvisible(c))
garbeam@13: 		focus(c);
arg@239: 	else if(ev->window == root) {
arg@714: 		activescreen = True;
arg@708: 		for(c = stack; c && !isvisible(c); c = c->snext);
arg@708: 		focus(c);
arg@239: 	}
garbeam@5: }
garbeam@5: 
garbeam@5: static void
arg@461: expose(XEvent *e) {
garbeam@5: 	XExposeEvent *ev = &e->xexpose;
garbeam@5: 
garbeam@5: 	if(ev->count == 0) {
garbeam@70: 		if(barwin == ev->window)
garbeam@74: 			drawstatus();
garbeam@5: 	}
garbeam@5: }
garbeam@5: 
garbeam@5: static void
arg@461: keypress(XEvent *e) {
arg@581: 	static unsigned int len = sizeof key / sizeof key[0];
arg@589: 	unsigned int i;
garbeam@76: 	KeySym keysym;
arg@123: 	XKeyEvent *ev = &e->xkey;
garbeam@76: 
garbeam@76: 	keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
arg@275: 	for(i = 0; i < len; i++) {
arg@461: 		if(keysym == key[i].keysym
arg@461: 			&& CLEANMASK(key[i].mod) == CLEANMASK(ev->state))
arg@275: 		{
arg@589: 			if(key[i].func)
arg@589: 				key[i].func(&key[i].arg);
garbeam@76: 		}
arg@275: 	}
garbeam@76: }
garbeam@76: 
garbeam@76: static void
arg@461: leavenotify(XEvent *e) {
garbeam@76: 	XCrossingEvent *ev = &e->xcrossing;
garbeam@76: 
arg@701: 	if((ev->window == root) && !ev->same_screen) {
arg@714: 		activescreen = False;
arg@711: 		focus(NULL);
arg@701: 	}
garbeam@76: }
garbeam@76: 
garbeam@76: static void
arg@461: mappingnotify(XEvent *e) {
arg@279: 	XMappingEvent *ev = &e->xmapping;
arg@279: 
arg@279: 	XRefreshKeyboardMapping(ev);
arg@279: 	if(ev->request == MappingKeyboard)
arg@279: 		grabkeys();
arg@279: }
arg@279: 
arg@279: static void
arg@461: maprequest(XEvent *e) {
arg@123: 	static XWindowAttributes wa;
garbeam@5: 	XMapRequestEvent *ev = &e->xmaprequest;
garbeam@5: 
garbeam@5: 	if(!XGetWindowAttributes(dpy, ev->window, &wa))
garbeam@5: 		return;
garbeam@5: 	if(wa.override_redirect) {
garbeam@5: 		XSelectInput(dpy, ev->window,
garbeam@5: 				(StructureNotifyMask | PropertyChangeMask));
garbeam@5: 		return;
garbeam@5: 	}
garbeam@10: 	if(!getclient(ev->window))
garbeam@10: 		manage(ev->window, &wa);
garbeam@5: }
garbeam@5: 
garbeam@5: static void
arg@461: propertynotify(XEvent *e) {
arg@123: 	Client *c;
arg@123: 	Window trans;
garbeam@5: 	XPropertyEvent *ev = &e->xproperty;
garbeam@5: 
garbeam@5: 	if(ev->state == PropertyDelete)
garbeam@5: 		return; /* ignore */
garbeam@13: 	if((c = getclient(ev->window))) {
garbeam@77: 		if(ev->atom == wmatom[WMProtocols]) {
garbeam@75: 			c->proto = getproto(c->win);
garbeam@30: 			return;
garbeam@30: 		}
garbeam@13: 		switch (ev->atom) {
garbeam@13: 			default: break;
garbeam@13: 			case XA_WM_TRANSIENT_FOR:
garbeam@53: 				XGetTransientForHint(dpy, c->win, &trans);
garbeam@80: 				if(!c->isfloat && (c->isfloat = (trans != 0)))
arg@533: 					arrange();
garbeam@13: 				break;
garbeam@13: 			case XA_WM_NORMAL_HINTS:
arg@639: 				updatesizehints(c);
garbeam@13: 				break;
garbeam@13: 		}
garbeam@77: 		if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
arg@454: 			updatetitle(c);
arg@690: 			if(c == sel)
arg@690: 				drawstatus();
garbeam@13: 		}
garbeam@13: 	}
garbeam@5: }
garbeam@5: 
garbeam@5: static void
arg@461: unmapnotify(XEvent *e) {
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: }
garbeam@76: 
garbeam@84: /* extern */
garbeam@76: 
garbeam@76: void (*handler[LASTEvent]) (XEvent *) = {
garbeam@76: 	[ButtonPress] = buttonpress,
garbeam@76: 	[ConfigureRequest] = configurerequest,
garbeam@76: 	[DestroyNotify] = destroynotify,
garbeam@76: 	[EnterNotify] = enternotify,
garbeam@76: 	[LeaveNotify] = leavenotify,
garbeam@76: 	[Expose] = expose,
garbeam@76: 	[KeyPress] = keypress,
arg@279: 	[MappingNotify] = mappingnotify,
garbeam@76: 	[MapRequest] = maprequest,
garbeam@76: 	[PropertyNotify] = propertynotify,
garbeam@76: 	[UnmapNotify] = unmapnotify
garbeam@76: };
garbeam@76: 
garbeam@76: void
arg@487: grabkeys(void) {
arg@581: 	static unsigned int len = sizeof key / sizeof key[0];
garbeam@76: 	unsigned int i;
garbeam@76: 	KeyCode code;
garbeam@76: 
arg@279: 	XUngrabKey(dpy, AnyKey, AnyModifier, root);
garbeam@76: 	for(i = 0; i < len; i++) {
garbeam@76: 		code = XKeysymToKeycode(dpy, key[i].keysym);
garbeam@76: 		XGrabKey(dpy, code, key[i].mod, root, True,
garbeam@76: 				GrabModeAsync, GrabModeAsync);
arg@160: 		XGrabKey(dpy, code, key[i].mod | LockMask, root, True,
arg@160: 				GrabModeAsync, GrabModeAsync);
arg@291: 		XGrabKey(dpy, code, key[i].mod | numlockmask, root, True,
arg@146: 				GrabModeAsync, GrabModeAsync);
arg@291: 		XGrabKey(dpy, code, key[i].mod | numlockmask | LockMask, root, True,
arg@146: 				GrabModeAsync, GrabModeAsync);
garbeam@76: 	}
garbeam@76: }
arg@292: 
arg@292: void
arg@487: procevent(void) {
arg@292: 	XEvent ev;
arg@292: 
arg@292: 	while(XPending(dpy)) {
arg@292: 		XNextEvent(dpy, &ev);
arg@292: 		if(handler[ev.type])
arg@292: 			(handler[ev.type])(&ev); /* call handler */
arg@292: 	}
arg@292: }