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/*
* (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
* See LICENSE file for license details.
*/
#include <stdlib.h>
#include <string.h>
#include <X11/Xatom.h>
#include "util.h"
#include "wm.h"
#define CLIENT_MASK (StructureNotifyMask | PropertyChangeMask | EnterWindowMask)
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)
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
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;
}
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;
}
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);
}
XUnmapWindow(dpy, c->title);
draw_bar();
XFlush(dpy);
}
void
manage(Window w, XWindowAttributes *wa)
{
Client *c, **l;
XSetWindowAttributes twa;
c = emallocz(sizeof(Client));
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;
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);
}
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);
}
static int
dummy_error_handler(Display *dpy, XErrorEvent *error)
{
return 0;
}
void
unmanage(Client *c)
{
Client **l;
XGrabServer(dpy);
XSetErrorHandler(dummy_error_handler);
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;
free(c);
XFlush(dpy);
XSetErrorHandler(error_handler);
XUngrabServer(dpy);
discard_events(EnterWindowMask);
if(stack)
focus(stack);
}
Client *
getclient(Window w)
{
Client *c;
for(c = clients; c; c = c->next)
if(c->win == w)
return c;
return NULL;
}
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);
}
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