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/* Metacity Workspaces */
/*
* Copyright (C) 2001 Havoc Pennington
*
* 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 of the
* License, 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 program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#include "workspace.h"
#include "errors.h"
#include <X11/Xatom.h>
void meta_workspace_queue_calc_showing (MetaWorkspace *workspace);
static int set_number_of_spaces_hint (MetaScreen *screen);
static int set_active_space_hint (MetaScreen *screen);
MetaWorkspace*
meta_workspace_new (MetaScreen *screen)
{
MetaWorkspace *workspace;
workspace = g_new (MetaWorkspace, 1);
workspace->screen = screen;
workspace->screen->display->workspaces =
g_list_append (workspace->screen->display->workspaces, workspace);
workspace->windows = NULL;
/* This may have something to do with the strut hints
* eventually
*/
workspace->workarea.x = 0;
workspace->workarea.y = 0;
workspace->workarea.width = screen->width;
workspace->workarea.height = screen->height;
/* Update hint for current number of workspaces */
set_number_of_spaces_hint (screen);
return workspace;
}
void
meta_workspace_free (MetaWorkspace *workspace)
{
GList *tmp;
tmp = workspace->windows;
while (tmp != NULL)
{
GList *next;
next = tmp->next;
/* pop front of list */
meta_workspace_remove_window (workspace, tmp->data);
tmp = next;
}
g_assert (workspace->windows == NULL);
workspace->screen->display->workspaces =
g_list_remove (workspace->screen->display->workspaces, workspace);
g_free (workspace);
}
void
meta_workspace_add_window (MetaWorkspace *workspace,
MetaWindow *window)
{
g_return_if_fail (!meta_workspace_contains_window (workspace, window));
workspace->windows = g_list_prepend (workspace->windows, window);
window->workspaces = g_list_prepend (window->workspaces, workspace);
meta_window_set_current_workspace_hint (window);
meta_window_queue_calc_showing (window);
}
void
meta_workspace_remove_window (MetaWorkspace *workspace,
MetaWindow *window)
{
g_return_if_fail (meta_workspace_contains_window (workspace, window));
workspace->windows = g_list_remove (workspace->windows, window);
window->workspaces = g_list_remove (window->workspaces, workspace);
meta_window_set_current_workspace_hint (window);
meta_window_queue_calc_showing (window);
}
gboolean
meta_workspace_contains_window (MetaWorkspace *workspace,
MetaWindow *window)
{
return g_list_find (workspace->windows, window) != NULL;
}
void
meta_workspace_queue_calc_showing (MetaWorkspace *workspace)
{
GList *tmp;
tmp = workspace->windows;
while (tmp != NULL)
{
meta_window_queue_calc_showing (tmp->data);
tmp = tmp->next;
}
}
void
meta_workspace_activate (MetaWorkspace *workspace)
{
MetaWorkspace *old;
meta_verbose ("Activating workspace %d\n",
meta_workspace_index (workspace));
if (workspace->screen->active_workspace == workspace)
return;
old = workspace->screen->active_workspace;
workspace->screen->active_workspace = workspace;
set_active_space_hint (workspace->screen);
meta_workspace_queue_calc_showing (old);
meta_workspace_queue_calc_showing (workspace);
}
int
meta_workspace_index (MetaWorkspace *workspace)
{
GList *tmp;
int i;
i = 0;
tmp = workspace->screen->display->workspaces;
while (tmp != NULL)
{
if (tmp->data == workspace)
return i;
++i;
tmp = tmp->next;
}
meta_bug ("Workspace does not exist to index!\n");
}
int
meta_workspace_screen_index (MetaWorkspace *workspace)
{
GList *tmp;
int i;
i = 0;
tmp = workspace->screen->display->workspaces;
while (tmp != NULL)
{
MetaWorkspace *w = tmp->data;
if (tmp->data == workspace)
return i;
if (w->screen == workspace->screen)
++i;
tmp = tmp->next;
}
meta_bug ("Workspace does not exist to index!\n");
}
static int
set_number_of_spaces_hint (MetaScreen *screen)
{
unsigned long data[1];
data[0] = meta_screen_get_n_workspaces (screen);
meta_verbose ("Setting _NET_NUMBER_OF_DESKTOPS to %ld\n", data[0]);
meta_error_trap_push (screen->display);
XChangeProperty (screen->display->xdisplay, screen->xroot,
screen->display->atom_net_number_of_desktops,
XA_CARDINAL,
32, PropModeReplace, (guchar*) data, 1);
return meta_error_trap_pop (screen->display);
}
static int
set_active_space_hint (MetaScreen *screen)
{
unsigned long data[1];
data[0] = meta_workspace_screen_index (screen->active_workspace);
meta_verbose ("Setting _NET_CURRENT_DESKTOP to %ld\n", data[0]);
meta_error_trap_push (screen->display);
XChangeProperty (screen->display->xdisplay, screen->xroot,
screen->display->atom_net_current_desktop,
XA_CARDINAL,
32, PropModeReplace, (guchar*) data, 1);
return meta_error_trap_pop (screen->display);
}
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