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/* functions for handling the window list
*
* Copyright (C) 2000 Shawn Betts
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "ratpoison.h"
rp_window *rp_window_head, *rp_window_tail;
rp_window *rp_current_window;
rp_window *
add_to_window_list (screen_info *s, Window w)
{
rp_window *new_window;
new_window = malloc (sizeof (rp_window));
if (new_window == NULL)
{
PRINT_ERROR ("Out of memory!\n");
exit (EXIT_FAILURE);
}
new_window->w = w;
new_window->scr = s;
new_window->last_access = 0;
new_window->prev = NULL;
new_window->state = STATE_UNMAPPED;
new_window->number = -1;
new_window->named = 0;
if ((new_window->name = malloc (strlen ("Unnamed") + 1)) == NULL)
{
PRINT_ERROR ("Out of memory!\n");
exit (EXIT_FAILURE);
}
strcpy (new_window->name, "Unnamed");
if (rp_window_head == NULL)
{
/* The list is empty. */
rp_window_head = new_window;
rp_window_tail = new_window;
new_window->next = NULL;
return new_window;
}
/* Add the window to the head of the list. */
new_window->next = rp_window_head;
rp_window_head->prev = new_window;
rp_window_head = new_window;
return new_window;
}
/* Check to see if the window is already in our list of managed windows. */
rp_window *
find_window (Window w)
{
rp_window *cur;
for (cur = rp_window_head; cur; cur = cur->next)
if (cur->w == w) return cur;
return NULL;
}
void
remove_from_window_list (rp_window *w)
{
if (rp_window_head == w) rp_window_head = w->next;
if (rp_window_tail == w) rp_window_tail = w->prev;
if (w->prev != NULL) w->prev->next = w->next;
if (w->next != NULL) w->next->prev = w->prev;
/* set rp_current_window to NULL, so a dangling pointer is not
left. */
if (rp_current_window == w) rp_current_window = NULL;
free (w);
PRINT_DEBUG ("Removed window from list.\n");
}
void
set_current_window (rp_window *win)
{
rp_current_window = win;
}
void
init_window_list ()
{
rp_window_head = rp_window_tail = NULL;
rp_current_window = NULL;
}
rp_window *
find_window_by_number (int n)
{
rp_window *cur;
for (cur=rp_window_head; cur; cur=cur->next)
{
if (cur->state == STATE_UNMAPPED) continue;
if (n == cur->number) return cur;
}
return NULL;
}
/* A case insensitive strncmp. */
static int
str_comp (char *s1, char *s2, int len)
{
int i;
for (i=0; i<len; i++)
if (toupper (s1[i]) != toupper (s2[i])) return 0;
return 1;
}
static rp_window *
find_window_by_name (char *name)
{
rp_window *cur;
for (cur=rp_window_head; cur; cur=cur->next)
{
if (cur->state == STATE_UNMAPPED) continue;
if (str_comp (name, cur->name, strlen (name))) return cur;
}
return NULL;
}
void
goto_window_name (char *name)
{
rp_window *win;
if ((win = find_window_by_name (name)) == NULL)
{
return;
}
rp_current_window = win;
set_active_window (rp_current_window);
}
rp_window *
find_last_accessed_window ()
{
int last_access = 0;
rp_window *cur, *most_recent;
/* Find the first mapped window */
for (most_recent = rp_window_head; most_recent; most_recent=most_recent->next)
{
if (most_recent->state == STATE_MAPPED) break;
}
/* If there are no mapped windows, don't bother with the next part */
if (most_recent == NULL) return NULL;
for (cur=rp_window_head; cur; cur=cur->next)
{
if (cur->last_access >= last_access
&& cur != rp_current_window
&& cur->state == STATE_MAPPED)
{
most_recent = cur;
last_access = cur->last_access;
}
}
return most_recent;
}
void
set_active_window (rp_window *rp_w)
{
static int counter = 1; /* increments every time this function
is called. This way we can track
which window was last accessed. */
if (rp_w == NULL) return;
counter++;
rp_w->last_access = counter;
if (rp_w->scr->bar_is_raised) update_window_names (rp_w->scr);
XSetInputFocus (dpy, rp_w->w,
RevertToPointerRoot, CurrentTime);
XRaiseWindow (dpy, rp_w->w);
/* Make sure the program bar is always on the top */
update_window_names (rp_w->scr);
}
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