X-Git-Url: https://git.xinqibao.xyz/dwm.git/blobdiff_plain/aebd745f72d3bc049d0af68aec33cf17277b20e9..fc2e3eae209c321daba04a36fa1723293527e160:/client.c

diff --git a/client.c b/client.c
index 62d4afc..03d158f 100644
--- a/client.c
+++ b/client.c
@@ -1,362 +1,310 @@
-/*
- * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
- * See LICENSE file for license details.
- */
+/* © 2006-2007 Anselm R. Garbe <garbeam at gmail dot com>
+ * © 2006-2007 Sander van Dijk <a dot h dot vandijk at gmail dot com>
+ * See LICENSE file for license details. */
 #include "dwm.h"
-
 #include <stdlib.h>
 #include <string.h>
 #include <X11/Xatom.h>
 #include <X11/Xutil.h>
 
-/* static functions */
+/* static */
 
 static void
-resizetitle(Client *c)
-{
-	int i;
-
-	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;
-	XMoveResizeWindow(dpy, c->title, c->bx, c->by, c->bw, c->bh);
+attachstack(Client *c) {
+	c->snext = stack;
+	stack = c;
 }
 
-static int
-xerrordummy(Display *dsply, XErrorEvent *ee)
-{
-	return 0;
+static void
+detachstack(Client *c) {
+	Client **tc;
+
+	for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
+	*tc = c->snext;
 }
 
-/* extern functions */
+static void
+grabbuttons(Client *c, Bool focused) {
+	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
 
-void
-ban(Client *c)
-{
-	XMoveWindow(dpy, c->win, *c->x + 2 * sw, *c->y);
-	XMoveWindow(dpy, c->title, c->bx + 2 * sw, c->by);
+	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);
 }
 
-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));
+static Bool
+isprotodel(Client *c) {
+	int i, n;
+	Atom *protocols;
+	Bool ret = False;
+
+	if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
+		for(i = 0; !ret && i < n; i++)
+			if(protocols[i] == wmatom[WMDelete])
+				ret = True;
+		XFree(protocols);
+	}
+	return ret;
 }
 
-void
-focusnext(Arg *arg)
-{
-	Client *c;
-   
-	if(!sel)
-		return;
+static void
+setclientstate(Client *c, long state) {
+	long data[] = {state, None};
 
-	if(!(c = getnext(sel->next, tsel)))
-		c = getnext(clients, tsel);
-	if(c) {
-		higher(c);
-		c->revert = sel;
-		focus(c);
-	}
+	XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
+			PropModeReplace, (unsigned char *)data, 2);
 }
 
-void
-focusprev(Arg *arg)
-{
-	Client *c;
+static int
+xerrordummy(Display *dsply, XErrorEvent *ee) {
+	return 0;
+}
 
-	if(!sel)
-		return;
+/* extern */
 
-	if((c = sel->revert && sel->revert->tags[tsel] ? sel->revert : NULL)) {
-		higher(c);
-		focus(c);
-	}
+void
+attach(Client *c) {
+	if(clients)
+		clients->prev = c;
+	c->next = clients;
+	clients = c;
 }
 
-Client *
-getclient(Window w)
-{
-	Client *c;
-	for(c = clients; c; c = c->next)
-		if(c->win == w)
-			return c;
-	return NULL;
+void
+configure(Client *c) {
+	XConfigureEvent ce;
+
+	ce.type = ConfigureNotify;
+	ce.display = dpy;
+	ce.event = c->win;
+	ce.window = c->win;
+	ce.x = c->x;
+	ce.y = c->y;
+	ce.width = c->w;
+	ce.height = c->h;
+	ce.border_width = c->border;
+	ce.above = None;
+	ce.override_redirect = False;
+	XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
 }
 
-Client *
-getctitle(Window w)
-{
-	Client *c;
-	for(c = clients; c; c = c->next)
-		if(c->title == w)
-			return c;
-	return NULL;
+void
+detach(Client *c) {
+	if(c->prev)
+		c->prev->next = c->next;
+	if(c->next)
+		c->next->prev = c->prev;
+	if(c == clients)
+		clients = c->next;
+	c->next = c->prev = NULL;
 }
 
 void
-gravitate(Client *c, Bool invert)
-{
-	int dx = 0, dy = 0;
-
-	switch(c->grav) {
-	case StaticGravity:
-	case NorthWestGravity:
-	case NorthGravity:
-	case NorthEastGravity:
-		dy = c->border;
-		break;
-	case EastGravity:
-	case CenterGravity:
-	case WestGravity:
-		dy = -(*c->h / 2) + c->border;
-		break;
-	case SouthEastGravity:
-	case SouthGravity:
-	case SouthWestGravity:
-		dy = -(*c->h);
-		break;
-	default:
-		break;
+focus(Client *c) {
+	if(c && !isvisible(c))
+		return;
+	if(sel && sel != c) {
+		grabbuttons(sel, False);
+		XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]);
 	}
-
-	switch (c->grav) {
-	case StaticGravity:
-	case NorthWestGravity:
-	case WestGravity:
-	case SouthWestGravity:
-		dx = c->border;
-		break;
-	case NorthGravity:
-	case CenterGravity:
-	case SouthGravity:
-		dx = -(*c->w / 2) + c->border;
-		break;
-	case NorthEastGravity:
-	case EastGravity:
-	case SouthEastGravity:
-		dx = -(*c->w + c->border);
-		break;
-	default:
-		break;
+	if(c) {
+		detachstack(c);
+		attachstack(c);
+		grabbuttons(c, True);
 	}
-
-	if(invert) {
-		dx = -dx;
-		dy = -dy;
+	sel = c;
+	drawstatus();
+	if(!selscreen)
+		return;
+	if(c) {
+		XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
+		XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
 	}
-	*c->x += dx;
-	*c->y += dy;
+	else
+		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
 }
 
 void
-higher(Client *c)
-{
-	XRaiseWindow(dpy, c->win);
-	XRaiseWindow(dpy, c->title);
-}
+killclient(const char *arg) {
+	XEvent ev;
 
-void
-killclient(Arg *arg)
-{
 	if(!sel)
 		return;
-	if(sel->proto & WM_PROTOCOL_DELWIN)
-		sendevent(sel->win, wmatom[WMProtocols], wmatom[WMDelete]);
+	if(isprotodel(sel)) {
+		ev.type = ClientMessage;
+		ev.xclient.window = sel->win;
+		ev.xclient.message_type = wmatom[WMProtocols];
+		ev.xclient.format = 32;
+		ev.xclient.data.l[0] = wmatom[WMDelete];
+		ev.xclient.data.l[1] = CurrentTime;
+		XSendEvent(dpy, sel->win, False, NoEventMask, &ev);
+	}
 	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;
-	Client *c;
-	XSetWindowAttributes twa;
+manage(Window w, XWindowAttributes *wa) {
+	Client *c, *t = NULL;
 	Window trans;
+	Status rettrans;
+	XWindowChanges wc;
 
 	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;
-	if(c->fy < bh)
-		c->by = c->fy = c->ty += bh;
-	c->bw = c->fw = c->tw = wa->width;
-	c->fh = c->th = wa->height;
-	c->bh = bh;
-
-	diff = sw - c->fw;
-	c->fx = sx + (random() % diff ? diff : 1);
-	diff = sh - c->fh;
-	c->fy = sx + (random() % diff ? diff : 1);
-
-	c->border = 1;
-	c->proto = getproto(c->win);
-	setsize(c);
-	XSelectInput(dpy, c->win,
-			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,
-			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, Mod1Mask, c->win, False, ButtonPressMask,
-			GrabModeAsync, GrabModeSync, None, None);
-	XGrabButton(dpy, Button2, Mod1Mask, c->win, False, ButtonPressMask,
-			GrabModeAsync, GrabModeSync, None, None);
-	XGrabButton(dpy, Button3, Mod1Mask, c->win, False, ButtonPressMask,
-			GrabModeAsync, GrabModeSync, None, None);
-
-	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);
-		focus(c);
+	c->x = wa->x;
+	c->y = wa->y;
+	c->w = wa->width;
+	c->h = wa->height;
+	c->oldborder = wa->border_width;
+	if(c->w == sw && c->h == sh) {
+		c->x = sx;
+		c->y = sy;
+		c->border = wa->border_width;
 	}
 	else {
-		ban(c);
-		XMapRaised(dpy, c->win);
-		XMapRaised(dpy, c->title);
-		XSync(dpy, False);
+		if(c->x + c->w + 2 * c->border > wax + waw)
+			c->x = wax + waw - c->w - 2 * c->border;
+		if(c->y + c->h + 2 * c->border > way + wah)
+			c->y = way + wah - c->h - 2 * c->border;
+		if(c->x < wax)
+			c->x = wax;
+		if(c->y < way)
+			c->y = way;
+		c->border = BORDERPX;
 	}
+	wc.border_width = c->border;
+	XConfigureWindow(dpy, w, CWBorderWidth, &wc);
+	XSetWindowBorder(dpy, w, dc.norm[ColBorder]);
+	configure(c); /* propagates border_width, if size doesn't change */
+	updatesizehints(c);
+	XSelectInput(dpy, w,
+		StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
+	grabbuttons(c, False);
+	updatetitle(c);
+	if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
+		for(t = clients; t && t->win != trans; t = t->next);
+	settags(c, t);
+	if(!c->isfloating)
+		c->isfloating = (rettrans == Success) || c->isfixed;
+	attach(c);
+	attachstack(c);
+	c->isbanned = True;
+	XMoveWindow(dpy, w, c->x + 2 * sw, c->y);
+	XMapWindow(dpy, w);
+	setclientstate(c, NormalState);
+	if(isvisible(c))
+		focus(c);
+	lt->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);
-}
-
-void
-resize(Client *c, Bool inc, Corner sticky)
-{
-	XConfigureEvent e;
-	int right = *c->x + *c->w;
-	int bottom = *c->y + *c->h;
+resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
+	float dx, dy, max, min, ratio;
+	XWindowChanges wc;
 
-	if(inc) {
+	if(w <= 0 || h <= 0)
+		return;
+	if(sizehints) {
+		if(c->minay > 0 && c->maxay > 0 && (h - c->baseh) > 0) {
+			dx = (float)(w - c->basew);
+			dy = (float)(h - c->baseh);
+			min = (float)(c->minax) / (float)(c->minay);
+			max = (float)(c->maxax) / (float)(c->maxay);
+			ratio = dx / dy;
+			if(max > 0 && min > 0 && ratio > 0) {
+				if(ratio < min) {
+					dy = (dx * min + dy) / (min * min + 1);
+					dx = dy * min;
+					w = (int)dx + c->basew;
+					h = (int)dy + c->baseh;
+				}
+				else if(ratio > max) {
+					dy = (dx * min + dy) / (max * max + 1);
+					dx = dy * min;
+					w = (int)dx + c->basew;
+					h = (int)dy + c->baseh;
+				}
+			}
+		}
+		if(c->minw && w < c->minw)
+			w = c->minw;
+		if(c->minh && h < c->minh)
+			h = c->minh;
+		if(c->maxw && w > c->maxw)
+			w = c->maxw;
+		if(c->maxh && h > c->maxh)
+			h = c->maxh;
 		if(c->incw)
-			*c->w -= (*c->w - c->basew) % c->incw;
+			w -= (w - c->basew) % c->incw;
 		if(c->inch)
-			*c->h -= (*c->h - c->baseh) % c->inch;
+			h -= (h - c->baseh) % c->inch;
+	}
+	if(w <= 0 || h <= 0)
+		return;
+	/* offscreen appearance fixes */
+	if(x > sw)
+		x = sw - w - 2 * c->border;
+	if(y > sh)
+		y = sh - h - 2 * c->border;
+	if(x + w + 2 * c->border < sx)
+		x = sx;
+	if(y + h + 2 * c->border < sy)
+		y = sy;
+	if(c->x != x || c->y != y || c->w != w || c->h != h) {
+		c->x = wc.x = x;
+		c->y = wc.y = y;
+		c->w = wc.width = w;
+		c->h = wc.height = h;
+		wc.border_width = c->border;
+		XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);
+		configure(c);
+		XSync(dpy, False);
 	}
-	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 == BottomRight)
-		*c->x = right - *c->w;
-	if(sticky == BottomLeft || sticky == BottomRight)
-		*c->y = bottom - *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);
-	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;
-	}
+togglefloating(const char *arg) {
+	if(!sel || lt->arrange == floating)
+		return;
+	sel->isfloating = !sel->isfloating;
+	lt->arrange();
 }
 
 void
-setsize(Client *c)
-{
-	XSizeHints size;
+updatesizehints(Client *c) {
 	long msize;
+	XSizeHints size;
+
 	if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
 		size.flags = PSize;
 	c->flags = size.flags;
@@ -364,6 +312,10 @@ setsize(Client *c)
 		c->basew = size.base_width;
 		c->baseh = size.base_height;
 	}
+	else if(c->flags & PMinSize) {
+		c->basew = size.min_width;
+		c->baseh = size.min_height;
+	}
 	else
 		c->basew = c->baseh = 0;
 	if(c->flags & PResizeInc) {
@@ -382,20 +334,29 @@ setsize(Client *c)
 		c->minw = size.min_width;
 		c->minh = size.min_height;
 	}
+	else if(c->flags & PBaseSize) {
+		c->minw = size.base_width;
+		c->minh = size.base_height;
+	}
 	else
 		c->minw = c->minh = 0;
-	if(c->flags & PWinGravity)
-		c->grav = size.win_gravity;
+	if(c->flags & PAspect) {
+		c->minax = size.min_aspect.x;
+		c->maxax = size.max_aspect.x;
+		c->minay = size.min_aspect.y;
+		c->maxay = size.max_aspect.y;
+	}
 	else
-		c->grav = NorthWestGravity;
+		c->minax = c->maxax = c->minay = c->maxay = 0;
+	c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
+			&& c->maxw == c->minw && c->maxh == c->minh);
 }
 
 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;
@@ -405,61 +366,40 @@ settitle(Client *c)
 	if(!name.nitems)
 		return;
 	if(name.encoding == XA_STRING)
-		strncpy(c->name, (char *)name.value, sizeof(c->name));
+		strncpy(c->name, (char *)name.value, sizeof c->name);
 	else {
 		if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
-				&& n > 0 && *list)
+		&& n > 0 && *list)
 		{
-			strncpy(c->name, *list, sizeof(c->name));
+			strncpy(c->name, *list, sizeof c->name);
 			XFreeStringList(list);
 		}
 	}
 	XFree(name.value);
-	resizetitle(c);
 }
 
 void
-unmanage(Client *c)
-{
-	Client **l;
+unmanage(Client *c) {
+	Client *nc;
+	XWindowChanges wc;
 
+	wc.border_width = c->oldborder;
+	/* The server grab construct avoids race conditions. */
 	XGrabServer(dpy);
 	XSetErrorHandler(xerrordummy);
-
+	XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
+	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;
-
+	setclientstate(c, WithdrawnState);
+	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);
+	lt->arrange();
 }