/*
* (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>
#include <X11/Xutil.h>
/* static functions */
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);
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) {
return 0;
}
/* extern functions */
void
ban(Client *c) {
XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
XMoveWindow(dpy, c->twin, c->tx + 2 * sw, c->ty);
}
void
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
focus(Client *c) {
Client *old;
if(!issel || (c && !isvisible(c)))
return;
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) {
Client *c;
for(c = clients; c; c = c->next)
if(c->win == w)
return c;
return NULL;
}
Client *
getctitle(Window w) {
Client *c;
for(c = clients; c; c = c->next)
if(c->twin == w)
return c;
return NULL;
}
void
gravitate(Client *c, Bool invert) {
int dx = 0, dy = 0;
switch(c->grav) {
default:
break;
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;
}
switch (c->grav) {
default:
break;
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;
}
if(invert) {
dx = -dx;
dy = -dy;
}
c->x += dx;
c->y += dy;
}
void
killclient(Arg *arg) {
if(!sel)
return;
if(sel->proto & PROTODELWIN)
sendevent(sel->win, wmatom[WMProtocols], wmatom[WMDelete]);
else
XKillClient(dpy, sel->win);
}
void
manage(Window w, XWindowAttributes *wa) {
Client *c;
Window trans;
XSetWindowAttributes twa;
c = emallocz(sizeof(Client));
c->tags = emallocz(ntags * sizeof(Bool));
c->win = w;
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 < 0)
c->x = 0;
if(c->y + c->h + 2 * BORDERPX > sh)
c->y = sh - c->h - 2;
if(c->h != sh && c->y < bh)
c->y = bh;
c->proto = getproto(c->win);
XSelectInput(dpy, c->win,
StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
XGetTransientForHint(dpy, c->win, &trans);
twa.override_redirect = 1;
twa.background_pixmap = ParentRelative;
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);
grabbuttons(c, False);
updatetitle(c);
settags(c, getclient(trans));
if(!c->isfloat)
c->isfloat = trans
|| (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);
arrange(NULL);
}
void
resize(Client *c, Bool sizehints, Corner sticky) {
int bottom = c->y + c->h;
int right = c->x + c->w;
XWindowChanges wc;
if(sizehints) {
if(c->incw)
c->w -= (c->w - c->basew) % c->incw;
if(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(sticky == TopRight || sticky == BotRight)
c->x = right - c->w;
if(sticky == BotLeft || sticky == BotRight)
c->y = bottom - c->h;
/* offscreen appearance fixes */
if(c->x + c->w < 0)
c->x = 0;
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);
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
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
updatesize(Client *c) {
long msize;
XSizeHints size;
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;
}
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
c->minw = c->minh = 0;
if(c->flags & PWinGravity)
c->grav = size.win_gravity;
else
c->grav = NorthWestGravity;
}
void
updatetitle(Client *c) {
char **list = NULL;
int n;
XTextProperty name;
name.nitems = 0;
c->name[0] = 0;
XGetTextProperty(dpy, c->win, &name, netatom[NetWMName]);
if(!name.nitems)
XGetWMName(dpy, c->win, &name);
if(!name.nitems)
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);
}
void
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->twin);
free(c->tags);
free(c);
XSync(dpy, False);
XSetErrorHandler(xerror);
XUngrabServer(dpy);
arrange(NULL);
}