X-Git-Url: https://git.xinqibao.xyz/dwm.git/blobdiff_plain/f95eed34b46dfe73f1511703e0a9301c9d8d1952..d7734f996ff2eae29fea14af76711d7f51648c10:/client.c

diff --git a/client.c b/client.c
index ccd8100..c65a42b 100644
--- a/client.c
+++ b/client.c
@@ -1,9 +1,7 @@
-/*
- * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
+/* (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */
 #include "dwm.h"
-
 #include <stdlib.h>
 #include <string.h>
 #include <X11/Xatom.h>
@@ -12,91 +10,111 @@
 /* static functions */
 
 static void
-resizetitle(Client *c)
-{
-	int i;
+detachstack(Client *c) {
+	Client **tc;
+	for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
+	*tc = c->snext;
+}
 
-	c->bw = 0;
-	for(i = 0; i < TLast; i++)
-		if(c->tags[i])
-			c->bw += textw(c->tags[i]);
-	c->bw += textw(c->name);
-	if(c->bw > *c->w)
-		c->bw = *c->w + 2;
-	c->bx = *c->x + *c->w - c->bw + 2;
-	c->by = *c->y;
-	if(c->tags[tsel])
-		XMoveResizeWindow(dpy, c->title, c->bx, c->by, c->bw, c->bh);
-	else
-		XMoveResizeWindow(dpy, c->title, c->bx + 2 * sw, c->by, c->bw, c->bh);
+static void
+grabbuttons(Client *c, Bool focused) {
+	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
 
+	if(focused) {
+		XGrabButton(dpy, Button1, MODKEY, c->win, False, BUTTONMASK,
+				GrabModeAsync, GrabModeSync, None, None);
+		XGrabButton(dpy, Button1, MODKEY | LockMask, c->win, False, BUTTONMASK,
+				GrabModeAsync, GrabModeSync, None, None);
+		XGrabButton(dpy, Button1, MODKEY | numlockmask, c->win, False, BUTTONMASK,
+				GrabModeAsync, GrabModeSync, None, None);
+		XGrabButton(dpy, Button1, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
+				GrabModeAsync, GrabModeSync, None, None);
+
+		XGrabButton(dpy, Button2, MODKEY, c->win, False, BUTTONMASK,
+				GrabModeAsync, GrabModeSync, None, None);
+		XGrabButton(dpy, Button2, MODKEY | LockMask, c->win, False, BUTTONMASK,
+				GrabModeAsync, GrabModeSync, None, None);
+		XGrabButton(dpy, Button2, MODKEY | numlockmask, c->win, False, BUTTONMASK,
+				GrabModeAsync, GrabModeSync, None, None);
+		XGrabButton(dpy, Button2, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
+				GrabModeAsync, GrabModeSync, None, None);
+
+		XGrabButton(dpy, Button3, MODKEY, c->win, False, BUTTONMASK,
+				GrabModeAsync, GrabModeSync, None, None);
+		XGrabButton(dpy, Button3, MODKEY | LockMask, c->win, False, BUTTONMASK,
+				GrabModeAsync, GrabModeSync, None, None);
+		XGrabButton(dpy, Button3, MODKEY | numlockmask, c->win, False, BUTTONMASK,
+				GrabModeAsync, GrabModeSync, None, None);
+		XGrabButton(dpy, Button3, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
+				GrabModeAsync, GrabModeSync, None, None);
+	}
+	else
+		XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK,
+				GrabModeAsync, GrabModeSync, None, None);
 }
 
 static int
-xerrordummy(Display *dsply, XErrorEvent *ee)
-{
+xerrordummy(Display *dsply, XErrorEvent *ee) {
 	return 0;
 }
 
 /* extern functions */
 
 void
-ban(Client *c)
-{
-	XMoveWindow(dpy, c->win, *c->x + 2 * sw, *c->y);
-	XMoveWindow(dpy, c->title, c->bx + 2 * sw, c->by);
+ban(Client *c) {
+	XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
+	XMoveWindow(dpy, c->twin, c->tx + 2 * sw, c->ty);
 }
 
 void
-focus(Client *c)
-{
-	Client *old = sel;
-	XEvent ev;
-
-	sel = c;
-	if(old && old != c)
-		drawtitle(old);
-	drawtitle(c);
-	XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
-	XSync(dpy, False);
-	while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
-}
-
-void
-focusnext(Arg *arg)
-{
-	Client *c;
-   
-	if(!sel)
-		return;
-
-	if(!(c = getnext(sel->next, tsel)))
-		c = getnext(clients, tsel);
-	if(c) {
-		higher(c);
-		c->revert = sel;
-		focus(c);
-	}
+configure(Client *c) {
+	XEvent synev;
+
+	synev.type = ConfigureNotify;
+	synev.xconfigure.display = dpy;
+	synev.xconfigure.event = c->win;
+	synev.xconfigure.window = c->win;
+	synev.xconfigure.x = c->x;
+	synev.xconfigure.y = c->y;
+	synev.xconfigure.width = c->w;
+	synev.xconfigure.height = c->h;
+	synev.xconfigure.border_width = c->border;
+	synev.xconfigure.above = None;
+	XSendEvent(dpy, c->win, True, NoEventMask, &synev);
 }
 
 void
-focusprev(Arg *arg)
-{
-	Client *c;
+focus(Client *c) {
+	Client *old;
 
-	if(!sel)
+	if(!issel || (c && !isvisible(c)))
 		return;
-
-	if((c = sel->revert && sel->revert->tags[tsel] ? sel->revert : NULL)) {
-		higher(c);
-		focus(c);
+	if(!sel)
+		sel = c;
+	else if(sel != c) {
+		old = sel;
+		sel = c;
+		if(old) {
+			grabbuttons(old, False);
+			drawtitle(old);
+		}
+	}
+	if(c) {
+		detachstack(c);
+		c->snext = stack;
+		stack = c;
+		grabbuttons(c, True);
+		drawtitle(c);
+		XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
 	}
+	else
+		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
 }
 
 Client *
-getclient(Window w)
-{
+getclient(Window w) {
 	Client *c;
+
 	for(c = clients; c; c = c->next)
 		if(c->win == w)
 			return c;
@@ -104,21 +122,22 @@ getclient(Window w)
 }
 
 Client *
-getctitle(Window w)
-{
+getctitle(Window w) {
 	Client *c;
+
 	for(c = clients; c; c = c->next)
-		if(c->title == w)
+		if(c->twin == w)
 			return c;
 	return NULL;
 }
 
 void
-gravitate(Client *c, Bool invert)
-{
+gravitate(Client *c, Bool invert) {
 	int dx = 0, dy = 0;
 
 	switch(c->grav) {
+	default:
+		break;
 	case StaticGravity:
 	case NorthWestGravity:
 	case NorthGravity:
@@ -128,18 +147,17 @@ gravitate(Client *c, Bool invert)
 	case EastGravity:
 	case CenterGravity:
 	case WestGravity:
-		dy = -(*c->h / 2) + c->border;
+		dy = -(c->h / 2) + c->border;
 		break;
 	case SouthEastGravity:
 	case SouthGravity:
 	case SouthWestGravity:
-		dy = -(*c->h);
-		break;
-	default:
+		dy = -(c->h);
 		break;
 	}
-
 	switch (c->grav) {
+	default:
+		break;
 	case StaticGravity:
 	case NorthWestGravity:
 	case WestGravity:
@@ -149,219 +167,153 @@ gravitate(Client *c, Bool invert)
 	case NorthGravity:
 	case CenterGravity:
 	case SouthGravity:
-		dx = -(*c->w / 2) + c->border;
+		dx = -(c->w / 2) + c->border;
 		break;
 	case NorthEastGravity:
 	case EastGravity:
 	case SouthEastGravity:
-		dx = -(*c->w + c->border);
-		break;
-	default:
+		dx = -(c->w + c->border);
 		break;
 	}
-
 	if(invert) {
 		dx = -dx;
 		dy = -dy;
 	}
-	*c->x += dx;
-	*c->y += dy;
-}
-
-void
-higher(Client *c)
-{
-	XRaiseWindow(dpy, c->win);
-	XRaiseWindow(dpy, c->title);
+	c->x += dx;
+	c->y += dy;
 }
 
 void
-killclient(Arg *arg)
-{
+killclient(Arg *arg) {
 	if(!sel)
 		return;
-	if(sel->proto & WM_PROTOCOL_DELWIN)
+	if(sel->proto & PROTODELWIN)
 		sendevent(sel->win, wmatom[WMProtocols], wmatom[WMDelete]);
 	else
 		XKillClient(dpy, sel->win);
 }
 
 void
-lower(Client *c)
-{
-	XLowerWindow(dpy, c->title);
-	XLowerWindow(dpy, c->win);
-}
-
-void
-manage(Window w, XWindowAttributes *wa)
-{
-	int diff;
+manage(Window w, XWindowAttributes *wa) {
 	Client *c;
-	XSetWindowAttributes twa;
 	Window trans;
+	XSetWindowAttributes twa;
 
 	c = emallocz(sizeof(Client));
+	c->tags = emallocz(ntags * sizeof(Bool));
 	c->win = w;
-	c->bx = c->fx = c->tx = wa->x;
-	c->by = c->fy = c->ty = wa->y;
-	c->bw = c->fw = c->tw = wa->width;
-	c->fh = c->th = wa->height;
-	c->bh = bh;
-
-	diff = sw - c->fw;
-	c->fx = random() % (diff ? diff : 1);
-	diff = sh - c->fh - bh;
-	c->fy = random() % (diff ? diff : 1);
-
-	if(c->fy < bh)
-		c->by = c->fy = c->ty = bh;
-
-	c->border = 1;
+	c->x = c->tx = wa->x;
+	c->y = c->ty = wa->y;
+	c->w = c->tw = wa->width;
+	c->h = wa->height;
+	c->th = bh;
+	c->border = 0;
+	updatesize(c);
+	if(c->x + c->w + 2 * BORDERPX > sw)
+		c->x = sw - c->w - 2 * BORDERPX;
+	if(c->x < sx)
+		c->x = sx;
+	if(c->y + c->h + 2 * BORDERPX > sh)
+		c->y = sh - c->h - 2 * BORDERPX;
+	if(c->h != sh && c->y < bh)
+		c->y = bh;
 	c->proto = getproto(c->win);
-	setsize(c);
 	XSelectInput(dpy, c->win,
-			StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
+		StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
 	XGetTransientForHint(dpy, c->win, &trans);
 	twa.override_redirect = 1;
 	twa.background_pixmap = ParentRelative;
-	twa.event_mask = ExposureMask;
-
-	c->title = XCreateWindow(dpy, root, c->bx, c->by, c->bw, c->bh,
+	twa.event_mask = ExposureMask | EnterWindowMask;
+	c->twin = XCreateWindow(dpy, root, c->tx, c->ty, c->tw, c->th,
 			0, DefaultDepth(dpy, screen), CopyFromParent,
 			DefaultVisual(dpy, screen),
 			CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);
-
-	settags(c);
-
-	c->next = clients;
-	clients = c;
-
-	XGrabButton(dpy, Button1, ControlMask, c->win, False, ButtonPressMask,
-			GrabModeAsync, GrabModeSync, None, None);
-	XGrabButton(dpy, Button1, MODKEY, c->win, False, ButtonPressMask,
-			GrabModeAsync, GrabModeSync, None, None);
-	XGrabButton(dpy, Button2, MODKEY, c->win, False, ButtonPressMask,
-			GrabModeAsync, GrabModeSync, None, None);
-	XGrabButton(dpy, Button3, MODKEY, c->win, False, ButtonPressMask,
-			GrabModeAsync, GrabModeSync, None, None);
-
+	grabbuttons(c, False);
+	updatetitle(c);
+	settags(c, getclient(trans));
 	if(!c->isfloat)
 		c->isfloat = trans
-			|| ((c->maxw == c->minw) && (c->maxh == c->minh));
-
-	setgeom(c);
-	settitle(c);
-
-	arrange(NULL);
-
-	/* mapping the window now prevents flicker */
-	if(c->tags[tsel]) {
-		XMapRaised(dpy, c->win);
-		XMapRaised(dpy, c->title);
+			|| (c->maxw && c->minw &&
+				c->maxw == c->minw && c->maxh == c->minh);
+	resizetitle(c);
+	if(clients)
+		clients->prev = c;
+	c->next = clients;
+	c->snext = stack;
+	stack = clients = c;
+	ban(c);
+	XMapWindow(dpy, c->win);
+	XMapWindow(dpy, c->twin);
+	if(isvisible(c))
 		focus(c);
-	}
-	else {
-		XMapRaised(dpy, c->win);
-		XMapRaised(dpy, c->title);
-	}
+	arrange();
 }
 
 void
-maximize(Arg *arg)
-{
-	if(!sel)
-		return;
-	*sel->x = sx;
-	*sel->y = sy + bh;
-	*sel->w = sw - 2 * sel->border;
-	*sel->h = sh - 2 * sel->border - bh;
-	higher(sel);
-	resize(sel, False, TopLeft);
-}
-
-void
-pop(Client *c)
-{
-	Client **l;
-	for(l = &clients; *l && *l != c; l = &(*l)->next);
-	*l = c->next;
-
-	c->next = clients; /* pop */
-	clients = c;
-	arrange(NULL);
-}
+resize(Client *c, Bool sizehints, Corner sticky) {
+	int bottom = c->y + c->h;
+	int right = c->x + c->w;
+	XWindowChanges wc;
 
-void
-resize(Client *c, Bool inc, Corner sticky)
-{
-	XConfigureEvent e;
-	int right = *c->x + *c->w;
-	int bottom = *c->y + *c->h;
-
-	if(inc) {
+	if(sizehints) {
 		if(c->incw)
-			*c->w -= (*c->w - c->basew) % c->incw;
+			c->w -= (c->w - c->basew) % c->incw;
 		if(c->inch)
-			*c->h -= (*c->h - c->baseh) % c->inch;
+			c->h -= (c->h - c->baseh) % c->inch;
+		if(c->minw && c->w < c->minw)
+			c->w = c->minw;
+		if(c->minh && c->h < c->minh)
+			c->h = c->minh;
+		if(c->maxw && c->w > c->maxw)
+			c->w = c->maxw;
+		if(c->maxh && c->h > c->maxh)
+			c->h = c->maxh;
 	}
-	if(*c->x > sw) /* might happen on restart */
-		*c->x = sw - *c->w;
-	if(*c->y > sh)
-		*c->y = sh - *c->h;
-	if(c->minw && *c->w < c->minw)
-		*c->w = c->minw;
-	if(c->minh && *c->h < c->minh)
-		*c->h = c->minh;
-	if(c->maxw && *c->w > c->maxw)
-		*c->w = c->maxw;
-	if(c->maxh && *c->h > c->maxh)
-		*c->h = c->maxh;
 	if(sticky == TopRight || sticky == BotRight)
-		*c->x = right - *c->w;
+		c->x = right - c->w;
 	if(sticky == BotLeft || sticky == BotRight)
-		*c->y = bottom - *c->h;
-
+		c->y = bottom - c->h;
+	/* offscreen appearance fixes */
+	if(c->x + c->w < sx)
+		c->x = sx;
+	if(c->y + c->h < bh)
+		c->y = bh;
+	if(c->x > sw)
+		c->x = sw - c->w;
+	if(c->y > sh)
+		c->y = sh - c->h;
 	resizetitle(c);
-	XSetWindowBorderWidth(dpy, c->win, 1);
-	XMoveResizeWindow(dpy, c->win, *c->x, *c->y, *c->w, *c->h);
-
-	e.type = ConfigureNotify;
-	e.event = c->win;
-	e.window = c->win;
-	e.x = *c->x;
-	e.y = *c->y;
-	e.width = *c->w;
-	e.height = *c->h;
-	e.border_width = c->border;
-	e.above = None;
-	e.override_redirect = False;
-	XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&e);
+	wc.x = c->x;
+	wc.y = c->y;
+	wc.width = c->w;
+	wc.height = c->h;
+	if(c->w == sw && c->h == sh)
+		wc.border_width = 0;
+	else
+		wc.border_width = BORDERPX;
+	XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);
+	configure(c);
 	XSync(dpy, False);
 }
 
 void
-setgeom(Client *c)
-{
-	if((arrange == dotile) && !c->isfloat) {
-		c->x = &c->tx;
-		c->y = &c->ty;
-		c->w = &c->tw;
-		c->h = &c->th;
-	}
-	else {
-		c->x = &c->fx;
-		c->y = &c->fy;
-		c->w = &c->fw;
-		c->h = &c->fh;
-	}
+resizetitle(Client *c) {
+	c->tw = textw(c->name);
+	if(c->tw > c->w)
+		c->tw = c->w + 2 * BORDERPX;
+	c->tx = c->x + c->w - c->tw + 2 * BORDERPX;
+	c->ty = c->y;
+	if(isvisible(c))
+		XMoveResizeWindow(dpy, c->twin, c->tx, c->ty, c->tw, c->th);
+	else
+		XMoveResizeWindow(dpy, c->twin, c->tx + 2 * sw, c->ty, c->tw, c->th);
 }
 
 void
-setsize(Client *c)
-{
-	XSizeHints size;
+updatesize(Client *c) {
 	long msize;
+	XSizeHints size;
+
 	if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
 		size.flags = PSize;
 	c->flags = size.flags;
@@ -396,11 +348,10 @@ setsize(Client *c)
 }
 
 void
-settitle(Client *c)
-{
-	XTextProperty name;
-	int n;
+updatetitle(Client *c) {
 	char **list = NULL;
+	int n;
+	XTextProperty name;
 
 	name.nitems = 0;
 	c->name[0] = 0;
@@ -420,51 +371,27 @@ settitle(Client *c)
 		}
 	}
 	XFree(name.value);
-	resizetitle(c);
 }
 
 void
-unmanage(Client *c)
-{
-	Client **l;
+unmanage(Client *c) {
+	Client *nc;
 
+	/* The server grab construct avoids race conditions. */
 	XGrabServer(dpy);
 	XSetErrorHandler(xerrordummy);
-
+	detach(c);
+	detachstack(c);
+	if(sel == c) {
+		for(nc = stack; nc && !isvisible(nc); nc = nc->snext);
+		focus(nc);
+	}
 	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
-	XDestroyWindow(dpy, c->title);
-
-	for(l = &clients; *l && *l != c; l = &(*l)->next);
-	*l = c->next;
-	for(l = &clients; *l; l = &(*l)->next)
-		if((*l)->revert == c)
-			(*l)->revert = NULL;
-	if(sel == c)
-		sel = sel->revert ? sel->revert : clients;
-
+	XDestroyWindow(dpy, c->twin);
+	free(c->tags);
 	free(c);
-
 	XSync(dpy, False);
 	XSetErrorHandler(xerror);
 	XUngrabServer(dpy);
-	arrange(NULL);
-	if(sel)
-		focus(sel);
-}
-
-void
-zoom(Arg *arg)
-{
-	Client *c;
-
-	if(!sel)
-		return;
-
-	if(sel == getnext(clients, tsel) && sel->next)  {
-		if((c = getnext(sel->next, tsel)))
-			sel = c;
-	}
-
-	pop(sel);
-	focus(sel);
+	arrange();
 }