awesome/titlebar.c

373 lines
10 KiB
C

/*
* titlebar.c - titlebar management
*
* Copyright © 2008-2009 Julien Danjou <julien@danjou.info>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include <xcb/xcb.h>
#include "titlebar.h"
#include "client.h"
#include "widget.h"
#include "wibox.h"
#include "screen.h"
#include "luaa.h"
/** Get a client by its titlebar.
* \param titlebar The titlebar.
* \return A client.
*/
client_t *
client_getbytitlebar(wibox_t *titlebar)
{
foreach(c, globalconf.clients)
if((*c)->titlebar == titlebar)
return *c;
return NULL;
}
/** Get a client by its titlebar window.
* \param win The window.
* \return A client.
*/
client_t *
client_getbytitlebarwin(xcb_window_t win)
{
foreach(c, globalconf.clients)
if((*c)->titlebar && (*c)->titlebar->window == win)
return *c;
return NULL;
}
/** Move a titlebar out of the viewport.
* \param titlebar The titlebar.
*/
void
titlebar_ban(wibox_t *titlebar)
{
/* Do it manually because client geometry remains unchanged. */
if(titlebar && !titlebar->isbanned)
{
client_t *c;
if(titlebar->window)
xcb_unmap_window(globalconf.connection, titlebar->window);
/* Remove titlebar geometry from client. */
if((c = client_getbytitlebar(titlebar)))
c->geometry = titlebar_geometry_remove(titlebar, 0, c->geometry);
titlebar->isbanned = true;
}
}
/** Move a titlebar on top of its client.
* \param titlebar The titlebar.
*/
void
titlebar_unban(wibox_t *titlebar)
{
/* Do this manually because the system doesn't know we moved the toolbar.
* Note that !visible titlebars are unmapped and for fullscreen it'll
* end up offscreen anyway. */
if(titlebar && titlebar->isbanned)
{
client_t *c;
if(titlebar->window)
xcb_map_window(globalconf.connection, titlebar->window);
titlebar->isbanned = false;
/* Add titlebar geometry from client. */
if((c = client_getbytitlebar(titlebar)))
c->geometry = titlebar_geometry_add(titlebar, 0, c->geometry);
}
}
/** Get titlebar area.
* \param c The client
* \param geometry The client geometry including borders, excluding titlebars.
* \param res Pointer to area of titlebar, must be allocated already.
*/
void
titlebar_geometry_compute(client_t *c, area_t geometry, area_t *res)
{
int height, width, x_offset = 0, y_offset = 0;
switch(c->titlebar->position)
{
default:
return;
case Top:
width = MAX(1, geometry.width);
switch(c->titlebar->align)
{
default:
break;
case AlignRight:
x_offset = geometry.width - width;
break;
case AlignCenter:
x_offset = (geometry.width - width) / 2;
break;
}
res->x = geometry.x + x_offset;
res->y = geometry.y - c->titlebar->geometry.height;
res->width = width;
res->height = c->titlebar->geometry.height;
break;
case Bottom:
width = MAX(1, geometry.width);
switch(c->titlebar->align)
{
default:
break;
case AlignRight:
x_offset = geometry.width - width;
break;
case AlignCenter:
x_offset = (geometry.width - width) / 2;
break;
}
res->x = geometry.x + x_offset;
res->y = geometry.y + geometry.height;
res->width = width;
res->height = c->titlebar->geometry.height;
break;
case Left:
height = MAX(1, geometry.height);
switch(c->titlebar->align)
{
default:
break;
case AlignRight:
y_offset = geometry.height - height;
break;
case AlignCenter:
y_offset = (geometry.height - height) / 2;
break;
}
res->x = geometry.x - c->titlebar->geometry.width;
res->y = geometry.y + y_offset;
res->width = c->titlebar->geometry.width;
res->height = height;
break;
case Right:
height = MAX(1, geometry.height);
switch(c->titlebar->align)
{
default:
break;
case AlignRight:
y_offset = geometry.height - height;
break;
case AlignCenter:
y_offset = (geometry.height - height) / 2;
break;
}
res->x = geometry.x + geometry.width;
res->y = geometry.y + y_offset;
res->width = c->titlebar->geometry.width;
res->height = height;
break;
}
}
/** Detach a wibox titlebar from its client.
* \param c The client.
*/
void
titlebar_client_detach(client_t *c)
{
/* If client has a titlebar, kick it out. */
if(c && c->titlebar)
{
/* Update client geometry to exclude the titlebar. */
c->geometry = titlebar_geometry_remove(c->titlebar, 0, c->geometry);
wibox_wipe(c->titlebar);
c->titlebar->type = WIBOX_TYPE_NORMAL;
c->titlebar->screen = NULL;
luaA_object_unref(globalconf.L, c->titlebar);
c->titlebar = NULL;
hook_property(c, "titlebar");
client_stack();
}
}
/** Attach a wibox to a client as its titlebar.
* \param c The client.
*/
void
titlebar_client_attach(client_t *c)
{
/* check if we can register the object */
wibox_t *t = luaA_object_ref(globalconf.L, -1);
titlebar_client_detach(c);
/* check if titlebar is already on a client */
titlebar_client_detach(client_getbytitlebar(t));
/* check if client already has a titlebar. */
titlebar_client_detach(c);
/* set the object as new client's titlebar */
c->titlebar = t;
t->type = WIBOX_TYPE_TITLEBAR;
t->screen = c->screen;
switch(t->position)
{
case Top:
case Bottom:
if(!t->geometry.height)
t->geometry.height = 1.5 * globalconf.font->height;
break;
case Left:
case Right:
if(!t->geometry.width)
t->geometry.width = 1.5 * globalconf.font->height;
break;
}
/* Update client geometry to include the titlebar. */
c->geometry = titlebar_geometry_add(c->titlebar, 0, c->geometry);
/* Client geometry without titlebar, but including borders, since that is always consistent. */
titlebar_geometry_compute(c, titlebar_geometry_remove(c->titlebar, 0, c->geometry), &t->geometry);
wibox_init(t, c->phys_screen);
t->need_update = true;
/* Call update geometry. This will move the wibox to the right place,
* which might be the same as `wingeom', but then it will ban the
* titlebar if needed. */
titlebar_update_geometry(c);
xcb_map_window(globalconf.connection, t->window);
hook_property(c, "titlebar");
luaA_object_push(globalconf.L, c);
luaA_object_emit_signal(globalconf.L, -1, "property::titlebar", 0);
lua_pop(globalconf.L, 1);
client_stack();
}
/** Map or unmap a titlebar wibox.
* \param t The wibox/titlebar.
* \param visible The new state of the titlebar.
*/
void
titlebar_set_visible(wibox_t *t, bool visible)
{
if(visible != t->visible)
{
if((t->visible = visible))
titlebar_unban(t);
else
titlebar_ban(t);
hook_property(t, "visible");
client_stack();
}
}
int
luaA_titlebar_set_position(lua_State *L, int udx)
{
wibox_t *titlebar = luaA_checkudata(L, udx, &wibox_class);
size_t len;
const char *buf = luaL_checklstring(L, -1, &len);
position_t position = position_fromstr(buf, len);
if(position != titlebar->position)
{
switch(position)
{
case Left:
switch(titlebar->position)
{
int tmp;
case Left:
case Right:
break;
case Top:
case Bottom:
tmp = titlebar->geometry.width;
titlebar->geometry.width = titlebar->geometry.height;
titlebar->geometry.height = tmp;
break;
}
wibox_set_orientation(L, udx, North);
break;
case Right:
switch(titlebar->position)
{
int tmp;
case Left:
case Right:
break;
case Top:
case Bottom:
tmp = titlebar->geometry.width;
titlebar->geometry.width = titlebar->geometry.height;
titlebar->geometry.height = tmp;
break;
}
wibox_set_orientation(L, udx, South);
break;
case Top:
case Bottom:
switch(titlebar->position)
{
int tmp;
case Left:
case Right:
tmp = titlebar->geometry.width;
titlebar->geometry.width = titlebar->geometry.height;
titlebar->geometry.height = tmp;
break;
case Top:
case Bottom:
break;
}
wibox_set_orientation(L, udx, East);
break;
}
titlebar->position = position;
client_t *c;
if((c = client_getbytitlebar(titlebar)))
{
titlebar_update_geometry(c);
/* call geometry hook for client because some like to
* set titlebar width in that hook, which make sense */
hook_property(c, "geometry");
}
}
return 0;
}
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