/*

* window.c - window handling functions

*

* Copyright © 2007-2008 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 <xcb/xcb_atom.h>

#include "window.h"

#include "mouse.h"

#include "common/atoms.h"

extern awesome_t globalconf;

/** Mask shorthands */

#define BUTTONMASK (XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE)

/** Set client state (WM_STATE) property.

* \param win The window to set state.

* \param state The state to set.

*/

void

window_state_set(xcb_window_t win, long state)

{

long data[] = { state, XCB_NONE };

xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE, win,

WM_STATE, WM_STATE, 32, 2, data);

}

/** Send request to get a window state (WM_STATE).

* \param w A client window.

* \return The cookie associated with the request.

*/

xcb_get_property_cookie_t

window_state_get_unchecked(xcb_window_t w)

{

return xcb_get_property_unchecked(globalconf.connection, false, w, WM_STATE,

WM_STATE, 0L, 2L);

}

/** Get a window state (WM_STATE).

* \param cookie The cookie.

* \return The current state of the window, or -1 on error.

*/

long

window_state_get_reply(xcb_get_property_cookie_t cookie)

{

long result = -1;

unsigned char *p = NULL;

xcb_get_property_reply_t *prop_r;

if(!(prop_r = xcb_get_property_reply(globalconf.connection, cookie, NULL)))

return -1;

p = xcb_get_property_value(prop_r);

if(xcb_get_property_value_length(prop_r) != 0)

result = *p;

p_delete(&prop_r);

return result;

}

/** Configure a window with its new geometry and border size.

* \param win The X window id to configure.

* \param geometry The new window geometry.

* \param border The new border size.

*/

void

window_configure(xcb_window_t win, area_t geometry, int border)

{

xcb_configure_notify_event_t ce;

ce.response_type = XCB_CONFIGURE_NOTIFY;

ce.event = win;

ce.window = win;

ce.x = geometry.x;

ce.y = geometry.y;

ce.width = geometry.width;

ce.height = geometry.height;

ce.border_width = border;

ce.above_sibling = XCB_NONE;

ce.override_redirect = false;

xcb_send_event(globalconf.connection, false, win, XCB_EVENT_MASK_STRUCTURE_NOTIFY, (char *) &ce);

}

/** Grab or ungrab buttons on a window.

* \param win The window.

* \param root The root window.

* \param buttons The buttons to grab.

*/

void

window_buttons_grab(xcb_window_t win, xcb_window_t root, button_array_t *buttons)

{

for(int i = 0; i < buttons->len; i++)

{

xcb_grab_button(globalconf.connection, false, win, BUTTONMASK,

XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, XCB_NONE, XCB_NONE,

buttons->tab[i]->button, buttons->tab[i]->mod);

xcb_grab_button(globalconf.connection, false, win, BUTTONMASK,

XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, XCB_NONE, XCB_NONE,

buttons->tab[i]->button, buttons->tab[i]->mod | XCB_MOD_MASK_LOCK);

xcb_grab_button(globalconf.connection, false, win, BUTTONMASK,

XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, XCB_NONE, XCB_NONE,

buttons->tab[i]->button, buttons->tab[i]->mod | globalconf.numlockmask);

xcb_grab_button(globalconf.connection, false, win, BUTTONMASK,

XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, XCB_NONE, XCB_NONE,

buttons->tab[i]->button, buttons->tab[i]->mod | globalconf.numlockmask | XCB_MOD_MASK_LOCK);

}

xcb_ungrab_button(globalconf.connection, XCB_BUTTON_INDEX_ANY, root, XCB_BUTTON_MASK_ANY);

}

/** Grab all buttons on the root window.

* \param root The root window.

*/

void

window_root_buttons_grab(xcb_window_t root)

{

button_array_t *barr = &globalconf.buttons;

for(int i = 0; i < barr->len; i++)

{

xcb_grab_button(globalconf.connection, false, root, BUTTONMASK,

XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_SYNC, XCB_NONE, XCB_NONE,

barr->tab[i]->button, barr->tab[i]->mod);

xcb_grab_button(globalconf.connection, false, root, BUTTONMASK,

XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_SYNC, XCB_NONE, XCB_NONE,

barr->tab[i]->button, barr->tab[i]->mod | XCB_MOD_MASK_LOCK);

xcb_grab_button(globalconf.connection, false, root, BUTTONMASK,

XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_SYNC, XCB_NONE, XCB_NONE,

barr->tab[i]->button, barr->tab[i]->mod | globalconf.numlockmask);

xcb_grab_button(globalconf.connection, false, root, BUTTONMASK,

XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_SYNC, XCB_NONE, XCB_NONE,

barr->tab[i]->button, barr->tab[i]->mod | globalconf.numlockmask | XCB_MOD_MASK_LOCK);

}

}

/** Get the opacity of a window.

* \param The window.

* \return The opacity, between 0 and 1 or -1 or no opacity set.

*/

double

window_opacity_get(xcb_window_t win)

{

xcb_get_property_cookie_t prop_c;

xcb_get_property_reply_t *prop_r;

prop_c = xcb_get_property_unchecked(globalconf.connection, false, win,

_NET_WM_WINDOW_OPACITY, CARDINAL, 0L, 1L);

prop_r = xcb_get_property_reply(globalconf.connection, prop_c, NULL);

if(!prop_r || !prop_r->value_len || prop_r->format != 32)

goto bailout;

if(prop_r->value_len)

{

unsigned int *data = xcb_get_property_value(prop_r);

return (double) *data / (double) 0xffffffff;

}

bailout:

p_delete(&prop_r);

return -1;

}

/** Set opacity of a window.

* \param win The window.

* \param opacity Opacity of the window, between 0 and 1.

*/

void

window_opacity_set(xcb_window_t win, double opacity)

{

unsigned int real_opacity = 0xffffffff;

if(opacity >= 0 && opacity <= 1)

{

real_opacity = opacity * 0xffffffff;

xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE, win,

_NET_WM_WINDOW_OPACITY, CARDINAL, 32, 1L, &real_opacity);

}

else

xcb_delete_property(globalconf.connection, win, _NET_WM_WINDOW_OPACITY);

}

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