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@27: #include <math.h>
garbeam@10: #include <stdlib.h>
garbeam@5: #include <string.h>
garbeam@5: #include <X11/Xatom.h>
garbeam@32: #include <X11/Xutil.h>
garbeam@5: 
garbeam@43: #include "dwm.h"
garbeam@5: 
garbeam@49: static void (*arrange)(Arg *) = floating;
garbeam@49: 
garbeam@50: static void
garbeam@50: center(Client *c)
garbeam@50: {
garbeam@50: 	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w / 2, c->h / 2);
garbeam@50: }
garbeam@50: 
garbeam@49: static Client *
garbeam@49: next(Client *c)
garbeam@49: {
garbeam@50: 	for(; c && !c->tags[tsel]; c = c->next);
garbeam@49: 	return c;
garbeam@49: }
garbeam@49: 
garbeam@50: void
garbeam@50: zoom(Arg *arg)
garbeam@49: {
garbeam@50: 	Client **l;
garbeam@50: 
garbeam@50: 	if(!sel)
garbeam@50: 		return;
garbeam@50: 
garbeam@50: 	for(l = &clients; *l && *l != sel; l = &(*l)->next);
garbeam@50: 	*l = sel->next;
garbeam@50: 
garbeam@50: 	sel->next = clients; /* pop */
garbeam@50: 	clients = sel;
garbeam@50: 	arrange(NULL);
garbeam@50: 	center(sel);
garbeam@50: 	focus(sel);
garbeam@49: }
garbeam@31: 
garbeam@27: void
garbeam@49: max(Arg *arg)
garbeam@28: {
garbeam@50: 	if(!sel)
garbeam@28: 		return;
garbeam@50: 	sel->x = sx;
garbeam@50: 	sel->y = sy;
garbeam@50: 	sel->w = sw - 2 * sel->border;
garbeam@50: 	sel->h = sh - 2 * sel->border;
garbeam@50: 	craise(sel);
garbeam@50: 	resize(sel);
garbeam@29: 	discard_events(EnterWindowMask);
garbeam@28: }
garbeam@28: 
garbeam@46: void
garbeam@50: view(Arg *arg)
garbeam@50: {
garbeam@50: 	tsel = arg->i;
garbeam@50: 	arrange(NULL);
garbeam@50: }
garbeam@50: 
garbeam@50: void
garbeam@49: tag(Arg *arg)
garbeam@49: {
garbeam@50: 	int i, n;
garbeam@50: 	if(!sel)
garbeam@49: 		return;
garbeam@49: 
garbeam@50: 	if(arg->i == tsel) {
garbeam@50: 		for(n = i = 0; i < TLast; i++)
garbeam@50: 			if(sel->tags[i])
garbeam@50: 				n++;
garbeam@50: 		if(n < 2)
garbeam@50: 			return;
garbeam@50: 	}
garbeam@49: 
garbeam@50: 	if(sel->tags[arg->i])
garbeam@50: 		sel->tags[arg->i] = NULL; /* toggle tag */
garbeam@49: 	else
garbeam@50: 		sel->tags[arg->i] = tags[arg->i];
garbeam@49: 	arrange(NULL);
garbeam@49: }
garbeam@49: 
garbeam@50: static void
garbeam@50: ban_client(Client *c)
garbeam@50: {
garbeam@50: 	XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
garbeam@50: 	XMoveWindow(dpy, c->title, c->tx + 2 * sw, c->ty);
garbeam@50: }
garbeam@50: 
garbeam@49: void
garbeam@49: floating(Arg *arg)
garbeam@31: {
garbeam@31: 	Client *c;
garbeam@31: 
garbeam@46: 	arrange = floating;
garbeam@50: 	for(c = clients; c; c = c->next) {
garbeam@50: 		if(c->tags[tsel])
garbeam@50: 			resize(c);
garbeam@50: 		else
garbeam@50: 			ban_client(c);
garbeam@50: 	}
garbeam@50: 	if(sel && !sel->tags[tsel]) {
garbeam@50: 		if((sel = next(clients))) {
garbeam@50: 			craise(sel);
garbeam@50: 			focus(sel);
garbeam@50: 		}
garbeam@50: 	}
garbeam@31: 	discard_events(EnterWindowMask);
garbeam@31: }
garbeam@31: 
garbeam@46: void
garbeam@49: tiling(Arg *arg)
garbeam@27: {
garbeam@27: 	Client *c;
garbeam@27: 	int n, cols, rows, gw, gh, i, j;
garbeam@27:     float rt, fd;
garbeam@27: 
garbeam@46: 	arrange = tiling;
garbeam@50: 	for(n = 0, c = clients; c; c = next(c->next), n++);
garbeam@50: 	if(n) {
garbeam@50: 		rt = sqrt(n);
garbeam@50: 		if(modff(rt, &fd) < 0.5)
garbeam@50: 			rows = floor(rt);
garbeam@50: 		else
garbeam@50: 			rows = ceil(rt);
garbeam@50: 		if(rows * rows < n)
garbeam@50: 			cols = rows + 1;
garbeam@50: 		else
garbeam@50: 			cols = rows;
garbeam@50: 
garbeam@50: 		gw = (sw - 2)  / cols;
garbeam@50: 		gh = (sh - 2) / rows;
garbeam@50: 	}
garbeam@27: 	else
garbeam@50: 		cols = rows = gw = gh = 0;
garbeam@27: 
garbeam@50: 	for(i = j = 0, c = clients; c; c = c->next) {
garbeam@50: 		if(c->tags[tsel]) {
garbeam@50: 			c->x = i * gw;
garbeam@50: 			c->y = j * gh;
garbeam@50: 			c->w = gw;
garbeam@50: 			c->h = gh;
garbeam@50: 			resize(c);
garbeam@50: 			if(++i == cols) {
garbeam@50: 				j++;
garbeam@50: 				i = 0;
garbeam@50: 			}
garbeam@50: 		}
garbeam@50: 		else
garbeam@50: 			ban_client(c);
garbeam@50: 	}
garbeam@50: 	if(sel && !sel->tags[tsel]) {
garbeam@50: 		if((sel = next(clients))) {
garbeam@50: 			craise(sel);
garbeam@50: 			focus(sel);
garbeam@27: 		}
garbeam@27: 	}
garbeam@29: 	discard_events(EnterWindowMask);
garbeam@27: }
garbeam@27: 
garbeam@27: void
garbeam@49: prevc(Arg *arg)
garbeam@27: {
garbeam@49: 	Client *c;
garbeam@27: 
garbeam@50: 	if(!sel)
garbeam@27: 		return;
garbeam@49: 
garbeam@50: 	if((c = sel->revert && sel->revert->tags[tsel] ? sel->revert : NULL)) {
garbeam@49: 		craise(c);
garbeam@50: 		center(c);
garbeam@49: 		focus(c);
garbeam@49: 	}
garbeam@27: }
garbeam@27: 
garbeam@27: void
garbeam@49: nextc(Arg *arg)
garbeam@27: {
garbeam@49: 	Client *c;
garbeam@49:    
garbeam@50: 	if(!sel)
garbeam@49: 		return;
garbeam@49: 
garbeam@50: 	if(!(c = next(sel->next)))
garbeam@50: 		c = next(clients);
garbeam@49: 	if(c) {
garbeam@49: 		craise(c);
garbeam@50: 		center(c);
garbeam@50: 		c->revert = sel;
garbeam@49: 		focus(c);
garbeam@49: 	}
garbeam@49: }
garbeam@49: 
garbeam@49: void
garbeam@49: ckill(Arg *arg)
garbeam@49: {
garbeam@50: 	if(!sel)
garbeam@27: 		return;
garbeam@50: 	if(sel->proto & WM_PROTOCOL_DELWIN)
garbeam@50: 		send_message(sel->win, wm_atom[WMProtocols], wm_atom[WMDelete]);
garbeam@27: 	else
garbeam@50: 		XKillClient(dpy, sel->win);
garbeam@27: }
garbeam@27: 
garbeam@26: static void
garbeam@26: resize_title(Client *c)
garbeam@26: {
garbeam@31: 	int i;
garbeam@31: 
garbeam@31: 	c->tw = 0;
garbeam@31: 	for(i = 0; i < TLast; i++)
garbeam@31: 		if(c->tags[i])
garbeam@43: 			c->tw += textw(c->tags[i]) + dc.font.height;
garbeam@43: 	c->tw += textw(c->name) + dc.font.height;
garbeam@26: 	if(c->tw > c->w)
garbeam@26: 		c->tw = c->w + 2;
garbeam@26: 	c->tx = c->x + c->w - c->tw + 2;
garbeam@26: 	c->ty = c->y;
garbeam@26: 	XMoveResizeWindow(dpy, c->title, c->tx, c->ty, c->tw, c->th);
garbeam@26: }
garbeam@18: 
garbeam@13: void
garbeam@13: update_name(Client *c)
garbeam@5: {
garbeam@5: 	XTextProperty name;
garbeam@5: 	int n;
garbeam@7: 	char **list = NULL;
garbeam@5: 
garbeam@5: 	name.nitems = 0;
garbeam@5: 	c->name[0] = 0;
garbeam@5: 	XGetTextProperty(dpy, c->win, &name, net_atom[NetWMName]);
garbeam@5: 	if(!name.nitems)
garbeam@5: 		XGetWMName(dpy, c->win, &name);
garbeam@5: 	if(!name.nitems)
garbeam@5: 		return;
garbeam@5: 	if(name.encoding == XA_STRING)
garbeam@5: 		strncpy(c->name, (char *)name.value, sizeof(c->name));
garbeam@5: 	else {
garbeam@5: 		if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
garbeam@5: 				&& n > 0 && *list)
garbeam@5: 		{
garbeam@5: 			strncpy(c->name, *list, sizeof(c->name));
garbeam@5: 			XFreeStringList(list);
garbeam@5: 		}
garbeam@5: 	}
garbeam@5: 	XFree(name.value);
garbeam@26: 	resize_title(c);
garbeam@5: }
garbeam@5: 
garbeam@10: void
garbeam@20: update_size(Client *c)
garbeam@20: {
garbeam@20: 	XSizeHints size;
garbeam@20: 	long msize;
garbeam@20: 	if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
garbeam@20: 		size.flags = PSize;
garbeam@20: 	c->flags = size.flags;
garbeam@21: 	if(c->flags & PBaseSize) {
garbeam@21: 		c->basew = size.base_width;
garbeam@21: 		c->baseh = size.base_height;
garbeam@21: 	}
garbeam@21: 	else
garbeam@21: 		c->basew = c->baseh = 0;
garbeam@21: 	if(c->flags & PResizeInc) {
garbeam@21: 		c->incw = size.width_inc;
garbeam@21: 		c->inch = size.height_inc;
garbeam@21: 	}
garbeam@21: 	else
garbeam@21: 		c->incw = c->inch = 0;
garbeam@21: 	if(c->flags & PMaxSize) {
garbeam@21: 		c->maxw = size.max_width;
garbeam@21: 		c->maxh = size.max_height;
garbeam@21: 	}
garbeam@21: 	else
garbeam@21: 		c->maxw = c->maxh = 0;
garbeam@21: 	if(c->flags & PMinSize) {
garbeam@21: 		c->minw = size.min_width;
garbeam@21: 		c->minh = size.min_height;
garbeam@21: 	}
garbeam@21: 	else
garbeam@21: 		c->minw = c->minh = 0;
garbeam@29: 	if(c->flags & PWinGravity)
garbeam@29: 		c->grav = size.win_gravity;
garbeam@29: 	else
garbeam@29: 		c->grav = NorthWestGravity;
garbeam@20: }
garbeam@20: 
garbeam@20: void
garbeam@32: craise(Client *c)
garbeam@26: {
garbeam@26: 	XRaiseWindow(dpy, c->win);
garbeam@26: 	XRaiseWindow(dpy, c->title);
garbeam@26: }
garbeam@26: 
garbeam@26: void
garbeam@26: lower(Client *c)
garbeam@26: {
garbeam@26: 	XLowerWindow(dpy, c->title);
garbeam@26: 	XLowerWindow(dpy, c->win);
garbeam@26: }
garbeam@26: 
garbeam@26: void
garbeam@13: focus(Client *c)
garbeam@13: {
garbeam@50: 	if(sel && sel != c) {
garbeam@50: 		XSetWindowBorder(dpy, sel->win, dc.bg);
garbeam@50: 		XMapWindow(dpy, sel->title);
garbeam@50: 		draw_client(sel);
garbeam@21: 	}
garbeam@50: 	sel = c;
garbeam@21: 	XUnmapWindow(dpy, c->title);
garbeam@43: 	XSetWindowBorder(dpy, c->win, dc.fg);
garbeam@27: 	draw_client(c);
garbeam@26: 	XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
garbeam@13: 	XFlush(dpy);
garbeam@45: 	discard_events(EnterWindowMask);
garbeam@13: }
garbeam@13: 
garbeam@13: void
garbeam@10: manage(Window w, XWindowAttributes *wa)
garbeam@5: {
garbeam@50: 	Client *c, **l;
garbeam@5: 	XSetWindowAttributes twa;
garbeam@5: 
garbeam@5: 	c = emallocz(sizeof(Client));
garbeam@5: 	c->win = w;
garbeam@22: 	c->tx = c->x = wa->x;
garbeam@22: 	c->ty = c->y = wa->y;
garbeam@22: 	c->tw = c->w = wa->width;
garbeam@20: 	c->h = wa->height;
garbeam@32: 	c->th = th;
garbeam@29: 	c->border = 1;
garbeam@50: 	c->proto = win_proto(c->win);
garbeam@20: 	update_size(c);
garbeam@26: 	XSelectInput(dpy, c->win,
garbeam@26: 			StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
garbeam@5: 	XGetTransientForHint(dpy, c->win, &c->trans);
garbeam@5: 	twa.override_redirect = 1;
garbeam@5: 	twa.background_pixmap = ParentRelative;
garbeam@23: 	twa.event_mask = ExposureMask;
garbeam@5: 
garbeam@31: 	c->tags[tsel] = tags[tsel];
garbeam@22: 	c->title = XCreateWindow(dpy, root, c->tx, c->ty, c->tw, c->th,
garbeam@20: 			0, DefaultDepth(dpy, screen), CopyFromParent,
garbeam@5: 			DefaultVisual(dpy, screen),
garbeam@5: 			CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);
garbeam@31: 
garbeam@21: 	update_name(c);
garbeam@49: 
garbeam@50: 	for(l = &clients; *l; l = &(*l)->next);
garbeam@50: 	c->next = *l; /* *l == nil */
garbeam@50: 	*l = c;
garbeam@49: 
garbeam@43: 	XSetWindowBorderWidth(dpy, c->win, 1);
garbeam@26: 	XMapRaised(dpy, c->win);
garbeam@26: 	XMapRaised(dpy, c->title);
garbeam@19: 	XGrabButton(dpy, Button1, Mod1Mask, c->win, False, ButtonPressMask,
garbeam@19: 			GrabModeAsync, GrabModeSync, None, None);
garbeam@19: 	XGrabButton(dpy, Button2, Mod1Mask, c->win, False, ButtonPressMask,
garbeam@19: 			GrabModeAsync, GrabModeSync, None, None);
garbeam@19: 	XGrabButton(dpy, Button3, Mod1Mask, c->win, False, ButtonPressMask,
garbeam@18: 			GrabModeAsync, GrabModeSync, None, None);
garbeam@46: 	arrange(NULL);
garbeam@50: 	center(c);
garbeam@13: 	focus(c);
garbeam@5: }
garbeam@9: 
garbeam@18: void
garbeam@29: gravitate(Client *c, Bool invert)
garbeam@29: {
garbeam@29: 	int dx = 0, dy = 0;
garbeam@29: 
garbeam@29: 	switch(c->grav) {
garbeam@29: 	case StaticGravity:
garbeam@29: 	case NorthWestGravity:
garbeam@29: 	case NorthGravity:
garbeam@29: 	case NorthEastGravity:
garbeam@29: 		dy = c->border;
garbeam@29: 		break;
garbeam@29: 	case EastGravity:
garbeam@29: 	case CenterGravity:
garbeam@29: 	case WestGravity:
garbeam@29: 		dy = -(c->h / 2) + c->border;
garbeam@29: 		break;
garbeam@29: 	case SouthEastGravity:
garbeam@29: 	case SouthGravity:
garbeam@29: 	case SouthWestGravity:
garbeam@29: 		dy = -c->h;
garbeam@29: 		break;
garbeam@29: 	default:
garbeam@29: 		break;
garbeam@29: 	}
garbeam@29: 
garbeam@29: 	switch (c->grav) {
garbeam@29: 	case StaticGravity:
garbeam@29: 	case NorthWestGravity:
garbeam@29: 	case WestGravity:
garbeam@29: 	case SouthWestGravity:
garbeam@29: 		dx = c->border;
garbeam@29: 		break;
garbeam@29: 	case NorthGravity:
garbeam@29: 	case CenterGravity:
garbeam@29: 	case SouthGravity:
garbeam@29: 		dx = -(c->w / 2) + c->border;
garbeam@29: 		break;
garbeam@29: 	case NorthEastGravity:
garbeam@29: 	case EastGravity:
garbeam@29: 	case SouthEastGravity:
garbeam@29: 		dx = -(c->w + c->border);
garbeam@29: 		break;
garbeam@29: 	default:
garbeam@29: 		break;
garbeam@29: 	}
garbeam@29: 
garbeam@29: 	if(invert) {
garbeam@29: 		dx = -dx;
garbeam@29: 		dy = -dy;
garbeam@29: 	}
garbeam@29: 	c->x += dx;
garbeam@29: 	c->y += dy;
garbeam@29: }
garbeam@29: 
garbeam@31: 
garbeam@29: void
garbeam@18: resize(Client *c)
garbeam@18: {
garbeam@18: 	XConfigureEvent e;
garbeam@18: 
garbeam@31: 	if(c->incw)
garbeam@31: 		c->w -= (c->w - c->basew) % c->incw;
garbeam@31: 	if(c->inch)
garbeam@31: 		c->h -= (c->h - c->baseh) % c->inch;
garbeam@31: 	if(c->minw && c->w < c->minw)
garbeam@31: 		c->w = c->minw;
garbeam@31: 	if(c->minh && c->h < c->minh)
garbeam@31: 		c->h = c->minh;
garbeam@31: 	if(c->maxw && c->w > c->maxw)
garbeam@31: 		c->w = c->maxw;
garbeam@31: 	if(c->maxh && c->h > c->maxh)
garbeam@31: 		c->h = c->maxh;
garbeam@26: 	resize_title(c);
garbeam@20: 	XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
garbeam@18: 	e.type = ConfigureNotify;
garbeam@18: 	e.event = c->win;
garbeam@18: 	e.window = c->win;
garbeam@20: 	e.x = c->x;
garbeam@20: 	e.y = c->y;
garbeam@20: 	e.width = c->w;
garbeam@20: 	e.height = c->h;
garbeam@29: 	e.border_width = c->border;
garbeam@18: 	e.above = None;
garbeam@18: 	e.override_redirect = False;
garbeam@18: 	XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&e);
garbeam@18: 	XFlush(dpy);
garbeam@18: }
garbeam@18: 
garbeam@10: static int
garbeam@33: dummy_error_handler(Display *dsply, XErrorEvent *err)
garbeam@10: {
garbeam@10: 	return 0;
garbeam@10: }
garbeam@10: 
garbeam@10: void
garbeam@10: unmanage(Client *c)
garbeam@10: {
garbeam@50: 	Client **l;
garbeam@50: 
garbeam@10: 	XGrabServer(dpy);
garbeam@10: 	XSetErrorHandler(dummy_error_handler);
garbeam@10: 
garbeam@18: 	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
garbeam@10: 	XDestroyWindow(dpy, c->title);
garbeam@10: 
garbeam@50: 	for(l = &clients; *l && *l != c; l = &(*l)->next);
garbeam@50: 	*l = c->next;
garbeam@50: 	for(l = &clients; *l; l = &(*l)->next)
garbeam@50: 		if((*l)->revert == c)
garbeam@50: 			(*l)->revert = NULL;
garbeam@50: 	if(sel == c)
garbeam@50: 		sel = sel->revert ? sel->revert : clients;
garbeam@49: 
garbeam@10: 	free(c);
garbeam@10: 
garbeam@10: 	XFlush(dpy);
garbeam@10: 	XSetErrorHandler(error_handler);
garbeam@10: 	XUngrabServer(dpy);
garbeam@46: 	arrange(NULL);
garbeam@50: 	if(sel)
garbeam@50: 		focus(sel);
garbeam@10: }
garbeam@10: 
garbeam@23: Client *
garbeam@23: gettitle(Window w)
garbeam@23: {
garbeam@23: 	Client *c;
garbeam@50: 	for(c = clients; c; c = c->next)
garbeam@23: 		if(c->title == w)
garbeam@23: 			return c;
garbeam@23: 	return NULL;
garbeam@23: }
garbeam@10: 
garbeam@9: Client *
garbeam@9: getclient(Window w)
garbeam@9: {
garbeam@9: 	Client *c;
garbeam@50: 	for(c = clients; c; c = c->next)
garbeam@9: 		if(c->win == w)
garbeam@9: 			return c;
garbeam@9: 	return NULL;
garbeam@9: }
garbeam@13: 
garbeam@14: void
garbeam@14: draw_client(Client *c)
garbeam@14: {
garbeam@31: 	int i;
garbeam@50: 	if(c == sel)
garbeam@26: 		return;
garbeam@14: 
garbeam@34: 	dc.x = dc.y = 0;
garbeam@34: 	dc.h = c->th;
garbeam@14: 
garbeam@34: 	dc.w = 0;
garbeam@31: 	for(i = 0; i < TLast; i++) {
garbeam@31: 		if(c->tags[i]) {
garbeam@34: 			dc.x += dc.w;
garbeam@43: 			dc.w = textw(c->tags[i]) + dc.font.height;
garbeam@34: 			draw(True, c->tags[i]);
garbeam@31: 		}
garbeam@31: 	}
garbeam@34: 	dc.x += dc.w;
garbeam@43: 	dc.w = textw(c->name) + dc.font.height;
garbeam@34: 	draw(True, c->name);
garbeam@34: 	XCopyArea(dpy, dc.drawable, c->title, dc.gc,
garbeam@22: 			0, 0, c->tw, c->th, 0, 0);
garbeam@21: 	XFlush(dpy);
garbeam@14: }