X-Git-Url: https://jasonwoof.com/gitweb/?a=blobdiff_plain;f=client.c;h=cd16e11867f2b4ba85c9730bc600ebdb6c188874;hb=f6514350613b8e581d744ec3922a5ffb2c28791f;hp=b7c9455259a68bc529aa1dc28c716f5f6f15e3aa;hpb=83d23908d3438d7f1f62533a7c8d96fc1019df55;p=dwm.git

diff --git a/client.c b/client.c
index b7c9455..cd16e11 100644
--- a/client.c
+++ b/client.c
@@ -1,226 +1,386 @@
-/*
- * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
- * See LICENSE file for license details.
- */
-
+/* See LICENSE file for copyright and license details. */
+#include "dwm.h"
 #include <stdlib.h>
-#include <string.h>
-#include <X11/Xatom.h>
+#include <X11/Xutil.h>
+
+/* static */
+
+static void
+attachstack(Client *c) {
+	c->snext = stack;
+	stack = c;
+}
+
+static void
+detachstack(Client *c) {
+	Client **tc;
+
+	for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
+	*tc = c->snext;
+}
+
+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);
 
-#include "util.h"
-#include "wm.h"
+		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);
+}
 
-#define CLIENT_MASK		(StructureNotifyMask | PropertyChangeMask | EnterWindowMask)
+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;
+}
+
+static void
+setclientstate(Client *c, long state) {
+	long data[] = {state, None};
+
+	XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
+			PropModeReplace, (unsigned char *)data, 2);
+}
+
+static int
+xerrordummy(Display *dsply, XErrorEvent *ee) {
+	return 0;
+}
+
+/* extern */
 
 void
-update_name(Client *c)
-{
-	XTextProperty name;
-	int n;
-	char **list = NULL;
-
-	name.nitems = 0;
-	c->name[0] = 0;
-	XGetTextProperty(dpy, c->win, &name, net_atom[NetWMName]);
-	if(!name.nitems)
-		XGetWMName(dpy, c->win, &name);
-	if(!name.nitems)
+attach(Client *c) {
+	if(clients)
+		clients->prev = c;
+	c->next = clients;
+	clients = c;
+}
+
+void
+ban(Client *c) {
+	if(c->isbanned)
 		return;
-	if(name.encoding == XA_STRING)
-		strncpy(c->name, (char *)name.value, sizeof(c->name));
-	else {
-		if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
-				&& n > 0 && *list)
-		{
-			strncpy(c->name, *list, sizeof(c->name));
-			XFreeStringList(list);
-		}
-	}
-	XFree(name.value);
+	XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
+	c->isbanned = True;
 }
 
 void
-update_size(Client *c)
-{
-	XSizeHints size;
-	long msize;
-	if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
-		size.flags = PSize;
-	c->flags = size.flags;
-	if(c->flags & PBaseSize) {
-		c->basew = size.base_width;
-		c->baseh = size.base_height;
-	}
-	else
-		c->basew = c->baseh = 0;
-	if(c->flags & PResizeInc) {
-		c->incw = size.width_inc;
-		c->inch = size.height_inc;
+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);
+}
+
+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
+focus(Client *c) {
+	if((!c && selscreen) || (c && !isvisible(c)))
+		for(c = stack; c && !isvisible(c); c = c->snext);
+	if(sel && sel != c) {
+		grabbuttons(sel, False);
+		XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]);
 	}
-	else
-		c->incw = c->inch = 0;
-	if(c->flags & PMaxSize) {
-		c->maxw = size.max_width;
-		c->maxh = size.max_height;
+	if(c) {
+		detachstack(c);
+		attachstack(c);
+		grabbuttons(c, True);
 	}
-	else
-		c->maxw = c->maxh = 0;
-	if(c->flags & PMinSize) {
-		c->minw = size.min_width;
-		c->minh = size.min_height;
+	sel = c;
+	drawstatus();
+	if(!selscreen)
+		return;
+	if(c) {
+		XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
+		XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
 	}
 	else
-		c->minw = c->minh = 0;
+		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
 }
 
 void
-focus(Client *c)
-{
-	Client **l, *old;
-
-	old = stack;
-	for(l=&stack; *l && *l != c; l=&(*l)->snext);
-	eassert(*l == c);
-	*l = c->snext;
-	c->snext = stack;
-	stack = c;
-	XRaiseWindow(dpy, c->win);
-	XRaiseWindow(dpy, c->title);
-	XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
-	if(old && old != c) {
-		XMapWindow(dpy, old->title);
-		draw_client(old);
+killclient(const char *arg) {
+	XEvent ev;
+
+	if(!sel)
+		return;
+	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);
 	}
-	XUnmapWindow(dpy, c->title);
-	draw_bar();
-	XFlush(dpy);
+	else
+		XKillClient(dpy, sel->win);
 }
 
 void
-manage(Window w, XWindowAttributes *wa)
-{
-	Client *c, **l;
-	XSetWindowAttributes twa;
+manage(Window w, XWindowAttributes *wa) {
+	unsigned int i;
+	Client *c, *t = NULL;
+	Window trans;
+	Status rettrans;
+	XWindowChanges wc;
 
 	c = emallocz(sizeof(Client));
+	c->tags = emallocz(ntags * sizeof(Bool));
 	c->win = w;
 	c->x = wa->x;
 	c->y = wa->y;
 	c->w = wa->width;
 	c->h = wa->height;
-	update_size(c);
-	XSetWindowBorderWidth(dpy, c->win, 1);
-	XSelectInput(dpy, c->win, CLIENT_MASK);
-	XGetTransientForHint(dpy, c->win, &c->trans);
-	twa.override_redirect = 1;
-	twa.background_pixmap = ParentRelative;
-	twa.event_mask = ExposureMask;
-
-	c->title = XCreateWindow(dpy, root, c->x, c->y, c->w, barrect.height,
-			0, DefaultDepth(dpy, screen), CopyFromParent,
-			DefaultVisual(dpy, screen),
-			CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);
-	update_name(c);
-
-	for(l=&clients; *l; l=&(*l)->next);
-	c->next = *l; /* *l == nil */
-	*l = c;
-	c->snext = stack;
-	stack = c;
+	c->oldborder = wa->border_width;
+	if(c->w == sw && c->h == sh) {
+		c->x = sx;
+		c->y = sy;
+		c->border = wa->border_width;
+	}
+	else {
+		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);
+	if(t)
+		for(i = 0; i < ntags; i++)
+			c->tags[i] = t->tags[i];
+	applyrules(c);
+	if(!c->isfloating)
+		c->isfloating = (rettrans == Success) || c->isfixed;
+	attach(c);
+	attachstack(c);
+	XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); /* some windows require this */
+	ban(c);
 	XMapWindow(dpy, c->win);
-	XMapWindow(dpy, c->title);
-	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);
-	resize(c);
-	focus(c);
+	setclientstate(c, NormalState);
+	arrange();
 }
 
 void
-resize(Client *c)
-{
-	XConfigureEvent e;
-
-	XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
-	XMoveResizeWindow(dpy, c->title, c->x + c->w / 3, c->y, 2 * c->w / 3, barrect.height);
-	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 = 0;
-	e.above = None;
-	e.override_redirect = False;
-	XSelectInput(dpy, c->win, CLIENT_MASK & ~StructureNotifyMask);
-	XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&e);
-	XSelectInput(dpy, c->win, CLIENT_MASK);
-	XFlush(dpy);
+resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
+	double dx, dy, max, min, ratio;
+	XWindowChanges wc; 
+
+	if(sizehints) {
+		if(c->minay > 0 && c->maxay > 0 && (h - c->baseh) > 0 && (w - c->basew) > 0) {
+			dx = (double)(w - c->basew);
+			dy = (double)(h - c->baseh);
+			min = (double)(c->minax) / (double)(c->minay);
+			max = (double)(c->maxax) / (double)(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)
+			w -= (w - c->basew) % c->incw;
+		if(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);
+	}
 }
 
-static int
-dummy_error_handler(Display *dpy, XErrorEvent *error)
-{
-	return 0;
+void
+unban(Client *c) {
+	if(!c->isbanned)
+		return;
+	XMoveWindow(dpy, c->win, c->x, c->y);
+	c->isbanned = False;
 }
 
 void
-unmanage(Client *c)
-{
-	Client **l;
+unmanage(Client *c) {
+	XWindowChanges wc;
 
+	wc.border_width = c->oldborder;
+	/* The server grab construct avoids race conditions. */
 	XGrabServer(dpy);
-	XSetErrorHandler(dummy_error_handler);
-
+	XSetErrorHandler(xerrordummy);
+	XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
+	detach(c);
+	detachstack(c);
+	if(sel == c)
+		focus(NULL);
 	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
-	XUnmapWindow(dpy, c->win);
-	XDestroyWindow(dpy, c->title);
-
-	for(l=&clients; *l && *l != c; l=&(*l)->next);
-	eassert(*l == c);
-	*l = c->next;
-	for(l=&stack; *l && *l != c; l=&(*l)->snext);
-	eassert(*l == c);
-	*l = c->snext;
+	setclientstate(c, WithdrawnState);
+	free(c->tags);
 	free(c);
-
-	XFlush(dpy);
-	XSetErrorHandler(error_handler);
+	XSync(dpy, False);
+	XSetErrorHandler(xerror);
 	XUngrabServer(dpy);
-	discard_events(EnterWindowMask);
-	if(stack)
-		focus(stack);
+	arrange();
 }
 
+void
+updatesizehints(Client *c) {
+	long msize;
+	XSizeHints size;
 
-Client *
-getclient(Window w)
-{
-	Client *c;
-	for(c = clients; c; c = c->next)
-		if(c->win == w)
-			return c;
-	return NULL;
+	if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
+		size.flags = PSize;
+	c->flags = size.flags;
+	if(c->flags & PBaseSize) {
+		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) {
+		c->incw = size.width_inc;
+		c->inch = size.height_inc;
+	}
+	else
+		c->incw = c->inch = 0;
+	if(c->flags & PMaxSize) {
+		c->maxw = size.max_width;
+		c->maxh = size.max_height;
+	}
+	else
+		c->maxw = c->maxh = 0;
+	if(c->flags & PMinSize) {
+		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 & 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->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
-draw_client(Client *c)
-{
-	if(!c)
-		return;
-	if(c == stack)
-		draw_bar();
-
-	brush.rect.x = brush.rect.y = 0;
-	brush.rect.width = 2 * c->w / 3;
-	brush.rect.height = barrect.height;
-
-	draw(dpy, &brush, True, c->name);
-	XCopyArea(dpy, brush.drawable, c->title, brush.gc, 0, 0,
-			brush.rect.width, brush.rect.height, 0, 0);
-	XFlush(dpy);
+updatetitle(Client *c) {
+	if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
+		gettextprop(c->win, wmatom[WMName], c->name, sizeof c->name);
 }