paulo@0: /* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
paulo@0:  * See LICENSE file for license details.
paulo@0:  */
paulo@0: #include "dwm.h"
paulo@0: #include <stdlib.h>
paulo@0: #include <X11/keysym.h>
paulo@0: #include <X11/Xatom.h>
paulo@0: 
paulo@0: /* static */
paulo@0: 
paulo@0: typedef struct {
paulo@0: 	unsigned long mod;
paulo@0: 	KeySym keysym;
paulo@0: 	void (*func)(Arg *arg);
paulo@0: 	Arg arg;
paulo@0: } Key;
paulo@0: 
paulo@0: KEYS
paulo@0: 
paulo@0: #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
paulo@0: #define MOUSEMASK		(BUTTONMASK | PointerMotionMask)
paulo@0: 
paulo@0: static Client *
paulo@0: getclient(Window w) {
paulo@0: 	Client *c;
paulo@0: 
paulo@0: 	for(c = clients; c && c->win != w; c = c->next);
paulo@0: 	return c;
paulo@0: }
paulo@0: 
paulo@0: static void
paulo@0: movemouse(Client *c) {
paulo@0: 	int x1, y1, ocx, ocy, di, nx, ny;
paulo@0: 	unsigned int dui;
paulo@0: 	Window dummy;
paulo@0: 	XEvent ev;
paulo@0: 
paulo@0: 	ocx = nx = c->x;
paulo@0: 	ocy = ny = c->y;
paulo@0: 	if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
paulo@0: 			None, cursor[CurMove], CurrentTime) != GrabSuccess)
paulo@0: 		return;
paulo@0: 	c->ismax = False;
paulo@0: 	XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
paulo@0: 	for(;;) {
paulo@0: 		XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev);
paulo@0: 		switch (ev.type) {
paulo@0: 		case ButtonRelease:
paulo@0: 			XUngrabPointer(dpy, CurrentTime);
paulo@0: 			return;
paulo@0: 		case ConfigureRequest:
paulo@0: 		case Expose:
paulo@0: 		case MapRequest:
paulo@0: 			handler[ev.type](&ev);
paulo@0: 			break;
paulo@0: 		case MotionNotify:
paulo@0: 			XSync(dpy, False);
paulo@0: 			nx = ocx + (ev.xmotion.x - x1);
paulo@0: 			ny = ocy + (ev.xmotion.y - y1);
paulo@0: 			if(abs(wax + nx) < SNAP)
paulo@0: 				nx = wax;
paulo@0: 			else if(abs((wax + waw) - (nx + c->w + 2 * c->border)) < SNAP)
paulo@0: 				nx = wax + waw - c->w - 2 * c->border;
paulo@0: 			if(abs(way - ny) < SNAP)
paulo@0: 				ny = way;
paulo@0: 			else if(abs((way + wah) - (ny + c->h + 2 * c->border)) < SNAP)
paulo@0: 				ny = way + wah - c->h - 2 * c->border;
paulo@0: 			resize(c, nx, ny, c->w, c->h, False);
paulo@0: 			break;
paulo@0: 		}
paulo@0: 	}
paulo@0: }
paulo@0: 
paulo@0: static void
paulo@0: resizemouse(Client *c) {
paulo@0: 	int ocx, ocy;
paulo@0: 	int nw, nh;
paulo@0: 	XEvent ev;
paulo@0: 
paulo@0: 	ocx = c->x;
paulo@0: 	ocy = c->y;
paulo@0: 	if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
paulo@0: 			None, cursor[CurResize], CurrentTime) != GrabSuccess)
paulo@0: 		return;
paulo@0: 	c->ismax = False;
paulo@0: 	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->border - 1, c->h + c->border - 1);
paulo@0: 	for(;;) {
paulo@0: 		XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask , &ev);
paulo@0: 		switch(ev.type) {
paulo@0: 		case ButtonRelease:
paulo@0: 			XWarpPointer(dpy, None, c->win, 0, 0, 0, 0,
paulo@0: 					c->w + c->border - 1, c->h + c->border - 1);
paulo@0: 			XUngrabPointer(dpy, CurrentTime);
paulo@0: 			while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
paulo@0: 			return;
paulo@0: 		case ConfigureRequest:
paulo@0: 		case Expose:
paulo@0: 		case MapRequest:
paulo@0: 			handler[ev.type](&ev);
paulo@0: 			break;
paulo@0: 		case MotionNotify:
paulo@0: 			XSync(dpy, False);
paulo@0: 			if((nw = ev.xmotion.x - ocx - 2 * c->border + 1) <= 0)
paulo@0: 				nw = 1;
paulo@0: 			if((nh = ev.xmotion.y - ocy - 2 * c->border + 1) <= 0)
paulo@0: 				nh = 1;
paulo@0: 			resize(c, c->x, c->y, nw, nh, True);
paulo@0: 			break;
paulo@0: 		}
paulo@0: 	}
paulo@0: }
paulo@0: 
paulo@0: static void
paulo@0: buttonpress(XEvent *e) {
paulo@0: 	int x;
paulo@0: 	Arg a;
paulo@0: 	Client *c;
paulo@0: 	XButtonPressedEvent *ev = &e->xbutton;
paulo@0: 
paulo@0: 	if(barwin == ev->window) {
paulo@0: 		x = 0;
paulo@0: 		for(a.i = 0; a.i < ntags; a.i++) {
paulo@0: 			x += textw(tags[a.i]);
paulo@0: 			if(ev->x < x) {
paulo@0: 				if(ev->button == Button1) {
paulo@0: 					if(ev->state & MODKEY)
paulo@0: 						tag(&a);
paulo@0: 					else
paulo@0: 						view(&a);
paulo@0: 				}
paulo@0: 				else if(ev->button == Button3) {
paulo@0: 					if(ev->state & MODKEY)
paulo@0: 						toggletag(&a);
paulo@0: 					else
paulo@0: 						toggleview(&a);
paulo@0: 				}
paulo@0: 				return;
paulo@0: 			}
paulo@0: 		}
paulo@0: 		if(ev->x < x + blw)
paulo@0: 			switch(ev->button) {
paulo@0: 			case Button1:
paulo@0: 				a.i = -1;
paulo@0: 				setlayout(&a);
paulo@0: 				break;
paulo@0: 			case Button4:
paulo@0: 				a.i = 1;
paulo@0: 				incnmaster(&a);
paulo@0: 				break;
paulo@0: 			case Button5:
paulo@0: 				a.i = -1;
paulo@0: 				incnmaster(&a);
paulo@0: 				break;
paulo@0: 			}
paulo@0: 		if(ev->x > x + blw)
paulo@0: 			switch(ev->button) {
paulo@0: 			case Button1: zoom(NULL); break;
paulo@0: 			case Button2: toggleversatile(NULL); break;
paulo@0: 			case Button3: killclient(NULL); break;
paulo@0: 			case Button4: focusprev(NULL); break;
paulo@0: 			case Button5: focusnext(NULL); break;
paulo@0: 		}
paulo@0: 	}
paulo@0: 	else if((c = getclient(ev->window))) {
paulo@0: 		focus(c);
paulo@0: 		if(CLEANMASK(ev->state) != MODKEY)
paulo@0: 			return;
paulo@0: 		if(ev->button == Button1 && (lt->arrange == versatile || c->isversatile)) {
paulo@0: 			restack();
paulo@0: 			movemouse(c);
paulo@0: 		}
paulo@0: 		else if(ev->button == Button2)
paulo@0: 			zoom(NULL);
paulo@0: 		else if(ev->button == Button3
paulo@0: 		&& (lt->arrange == versatile || c->isversatile) && !c->isfixed)
paulo@0: 		{
paulo@0: 			restack();
paulo@0: 			resizemouse(c);
paulo@0: 		}
paulo@0: 	}
paulo@0: }
paulo@0: 
paulo@0: static void
paulo@0: configurerequest(XEvent *e) {
paulo@0: 	Client *c;
paulo@0: 	XConfigureRequestEvent *ev = &e->xconfigurerequest;
paulo@0: 	XWindowChanges wc;
paulo@0: 
paulo@0: 	if((c = getclient(ev->window))) {
paulo@0: 		c->ismax = False;
paulo@0: 		if(ev->value_mask & CWBorderWidth)
paulo@0: 			c->border = ev->border_width;
paulo@0: 		if(c->isfixed || c->isversatile || (lt->arrange == versatile)) {
paulo@0: 			if(ev->value_mask & CWX)
paulo@0: 				c->x = ev->x;
paulo@0: 			if(ev->value_mask & CWY)
paulo@0: 				c->y = ev->y;
paulo@0: 			if(ev->value_mask & CWWidth)
paulo@0: 				c->w = ev->width;
paulo@0: 			if(ev->value_mask & CWHeight)
paulo@0: 				c->h = ev->height;
paulo@0: 			if((ev->value_mask & (CWX | CWY))
paulo@0: 			&& !(ev->value_mask & (CWWidth | CWHeight)))
paulo@0: 				configure(c);
paulo@0: 			if(isvisible(c))
paulo@0: 				/* XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); */
paulo@0: 				resize(c, c->x, c->y, c->w, c->h, False);
paulo@0: 		}
paulo@0: 		else
paulo@0: 			configure(c);
paulo@0: 	}
paulo@0: 	else {
paulo@0: 		wc.x = ev->x;
paulo@0: 		wc.y = ev->y;
paulo@0: 		wc.width = ev->width;
paulo@0: 		wc.height = ev->height;
paulo@0: 		wc.border_width = ev->border_width;
paulo@0: 		wc.sibling = ev->above;
paulo@0: 		wc.stack_mode = ev->detail;
paulo@0: 		XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
paulo@0: 	}
paulo@0: 	XSync(dpy, False);
paulo@0: }
paulo@0: 
paulo@0: static void
paulo@0: destroynotify(XEvent *e) {
paulo@0: 	Client *c;
paulo@0: 	XDestroyWindowEvent *ev = &e->xdestroywindow;
paulo@0: 
paulo@0: 	if((c = getclient(ev->window)))
paulo@0: 		unmanage(c);
paulo@0: }
paulo@0: 
paulo@0: static void
paulo@0: enternotify(XEvent *e) {
paulo@0: 	Client *c;
paulo@0: 	XCrossingEvent *ev = &e->xcrossing;
paulo@0: 
paulo@0: 	if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
paulo@0: 		return;
paulo@0: 	if((c = getclient(ev->window)) && isvisible(c))
paulo@0: 		focus(c);
paulo@0: 	else if(ev->window == root) {
paulo@0: 		selscreen = True;
paulo@0: 		for(c = stack; c && !isvisible(c); c = c->snext);
paulo@0: 		focus(c);
paulo@0: 	}
paulo@0: }
paulo@0: 
paulo@0: static void
paulo@0: expose(XEvent *e) {
paulo@0: 	XExposeEvent *ev = &e->xexpose;
paulo@0: 
paulo@0: 	if(ev->count == 0) {
paulo@0: 		if(barwin == ev->window)
paulo@0: 			drawstatus();
paulo@0: 	}
paulo@0: }
paulo@0: 
paulo@0: static void
paulo@0: keypress(XEvent *e) {
paulo@0: 	static unsigned int len = sizeof key / sizeof key[0];
paulo@0: 	unsigned int i;
paulo@0: 	KeySym keysym;
paulo@0: 	XKeyEvent *ev = &e->xkey;
paulo@0: 
paulo@0: 	keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
paulo@0: 	for(i = 0; i < len; i++)
paulo@0: 		if(keysym == key[i].keysym
paulo@0: 		&& CLEANMASK(key[i].mod) == CLEANMASK(ev->state))
paulo@0: 		{
paulo@0: 			if(key[i].func)
paulo@0: 				key[i].func(&key[i].arg);
paulo@0: 		}
paulo@0: }
paulo@0: 
paulo@0: static void
paulo@0: leavenotify(XEvent *e) {
paulo@0: 	XCrossingEvent *ev = &e->xcrossing;
paulo@0: 
paulo@0: 	if((ev->window == root) && !ev->same_screen) {
paulo@0: 		selscreen = False;
paulo@0: 		focus(NULL);
paulo@0: 	}
paulo@0: }
paulo@0: 
paulo@0: static void
paulo@0: mappingnotify(XEvent *e) {
paulo@0: 	XMappingEvent *ev = &e->xmapping;
paulo@0: 
paulo@0: 	XRefreshKeyboardMapping(ev);
paulo@0: 	if(ev->request == MappingKeyboard)
paulo@0: 		grabkeys();
paulo@0: }
paulo@0: 
paulo@0: static void
paulo@0: maprequest(XEvent *e) {
paulo@0: 	static XWindowAttributes wa;
paulo@0: 	XMapRequestEvent *ev = &e->xmaprequest;
paulo@0: 
paulo@0: 	if(!XGetWindowAttributes(dpy, ev->window, &wa))
paulo@0: 		return;
paulo@0: 	if(wa.override_redirect)
paulo@0: 		return;
paulo@0: 	if(!getclient(ev->window))
paulo@0: 		manage(ev->window, &wa);
paulo@0: }
paulo@0: 
paulo@0: static void
paulo@0: propertynotify(XEvent *e) {
paulo@0: 	Client *c;
paulo@0: 	Window trans;
paulo@0: 	XPropertyEvent *ev = &e->xproperty;
paulo@0: 
paulo@0: 	if(ev->state == PropertyDelete)
paulo@0: 		return; /* ignore */
paulo@0: 	if((c = getclient(ev->window))) {
paulo@0: 		switch (ev->atom) {
paulo@0: 			default: break;
paulo@0: 			case XA_WM_TRANSIENT_FOR:
paulo@0: 				XGetTransientForHint(dpy, c->win, &trans);
paulo@0: 				if(!c->isversatile && (c->isversatile = (getclient(trans) != NULL)))
paulo@0: 					lt->arrange();
paulo@0: 				break;
paulo@0: 			case XA_WM_NORMAL_HINTS:
paulo@0: 				updatesizehints(c);
paulo@0: 				break;
paulo@0: 		}
paulo@0: 		if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
paulo@0: 			updatetitle(c);
paulo@0: 			if(c == sel)
paulo@0: 				drawstatus();
paulo@0: 		}
paulo@0: 	}
paulo@0: }
paulo@0: 
paulo@0: static void
paulo@0: unmapnotify(XEvent *e) {
paulo@0: 	Client *c;
paulo@0: 	XUnmapEvent *ev = &e->xunmap;
paulo@0: 
paulo@0: 	if((c = getclient(ev->window)))
paulo@0: 		unmanage(c);
paulo@0: }
paulo@0: 
paulo@0: /* extern */
paulo@0: 
paulo@0: void (*handler[LASTEvent]) (XEvent *) = {
paulo@0: 	[ButtonPress] = buttonpress,
paulo@0: 	[ConfigureRequest] = configurerequest,
paulo@0: 	[DestroyNotify] = destroynotify,
paulo@0: 	[EnterNotify] = enternotify,
paulo@0: 	[LeaveNotify] = leavenotify,
paulo@0: 	[Expose] = expose,
paulo@0: 	[KeyPress] = keypress,
paulo@0: 	[MappingNotify] = mappingnotify,
paulo@0: 	[MapRequest] = maprequest,
paulo@0: 	[PropertyNotify] = propertynotify,
paulo@0: 	[UnmapNotify] = unmapnotify
paulo@0: };
paulo@0: 
paulo@0: void
paulo@0: grabkeys(void) {
paulo@0: 	static unsigned int len = sizeof key / sizeof key[0];
paulo@0: 	unsigned int i;
paulo@0: 	KeyCode code;
paulo@0: 
paulo@0: 	XUngrabKey(dpy, AnyKey, AnyModifier, root);
paulo@0: 	for(i = 0; i < len; i++) {
paulo@0: 		code = XKeysymToKeycode(dpy, key[i].keysym);
paulo@0: 		XGrabKey(dpy, code, key[i].mod, root, True,
paulo@0: 				GrabModeAsync, GrabModeAsync);
paulo@0: 		XGrabKey(dpy, code, key[i].mod | LockMask, root, True,
paulo@0: 				GrabModeAsync, GrabModeAsync);
paulo@0: 		XGrabKey(dpy, code, key[i].mod | numlockmask, root, True,
paulo@0: 				GrabModeAsync, GrabModeAsync);
paulo@0: 		XGrabKey(dpy, code, key[i].mod | numlockmask | LockMask, root, True,
paulo@0: 				GrabModeAsync, GrabModeAsync);
paulo@0: 	}
paulo@0: }