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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2014 David Herrmann <dh.herrmann@gmail.com>
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <errno.h>
#include <inttypes.h>
#include <stdlib.h>
#include "consoled.h"
#include "grdev.h"
#include "idev.h"
#include "list.h"
#include "macro.h"
#include "util.h"
int workspace_new(Workspace **out, Manager *m) {
_cleanup_(workspace_unrefp) Workspace *w = NULL;
int r;
assert(out);
w = new0(Workspace, 1);
if (!w)
return -ENOMEM;
w->ref = 1;
w->manager = m;
LIST_PREPEND(workspaces_by_manager, m->workspace_list, w);
r = terminal_new(&w->current, w);
if (r < 0)
return r;
*out = w;
w = NULL;
return 0;
}
static void workspace_cleanup(Workspace *w) {
Terminal *t;
assert(w);
assert(w->ref == 0);
assert(w->manager);
assert(!w->session_list);
w->current = NULL;
while ((t = w->terminal_list))
terminal_free(t);
LIST_REMOVE(workspaces_by_manager, w->manager->workspace_list, w);
free(w);
}
Workspace *workspace_ref(Workspace *w) {
assert(w);
++w->ref;
return w;
}
Workspace *workspace_unref(Workspace *w) {
if (!w)
return NULL;
assert(w->ref > 0);
if (--w->ref == 0)
workspace_cleanup(w);
return NULL;
}
Workspace *workspace_attach(Workspace *w, Session *s) {
assert(w);
assert(s);
LIST_PREPEND(sessions_by_workspace, w->session_list, s);
workspace_refresh(w);
return workspace_ref(w);
}
Workspace *workspace_detach(Workspace *w, Session *s) {
assert(w);
assert(s);
assert(s->active_ws == w);
LIST_REMOVE(sessions_by_workspace, w->session_list, s);
workspace_refresh(w);
return workspace_unref(w);
}
void workspace_refresh(Workspace *w) {
uint32_t width, height;
Terminal *t;
Session *s;
Display *d;
assert(w);
width = 0;
height = 0;
/* find out minimum dimension of all attached displays */
LIST_FOREACH(sessions_by_workspace, s, w->session_list) {
LIST_FOREACH(displays_by_session, d, s->display_list) {
assert(d->width > 0 && d->height > 0);
if (width == 0 || d->width < width)
width = d->width;
if (height == 0 || d->height < height)
height = d->height;
}
}
/* either both are zero, or none is zero */
assert(!(!width ^ !height));
/* update terminal-sizes if dimensions changed */
if (w->width != width || w->height != height) {
w->width = width;
w->height = height;
LIST_FOREACH(terminals_by_workspace, t, w->terminal_list)
terminal_resize(t);
workspace_dirty(w);
}
}
void workspace_dirty(Workspace *w) {
Session *s;
assert(w);
LIST_FOREACH(sessions_by_workspace, s, w->session_list)
session_dirty(s);
}
void workspace_feed(Workspace *w, idev_data *data) {
assert(w);
assert(data);
terminal_feed(w->current, data);
}
bool workspace_draw(Workspace *w, const grdev_display_target *target) {
assert(w);
assert(target);
return terminal_draw(w->current, target);
}
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