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/*
* selection.c - Selection handling
*
* Copyright © 2009 Julien Danjou <julien@danjou.info>
* Copyright © 2009 Gregor Best <farhaven@googlemail.com>
*
* 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.
*
*/
/** awesome selection (clipboard) API
* @author Julien Danjou <julien@danjou.info>
* @copyright 2008-2009 Julien Danjou
* @module selection
*/
#include "selection.h"
#include "globalconf.h"
#include "common/atoms.h"
#include "event.h"
#include "xwindow.h"
#include <xcb/xcb_atom.h>
#include <xcb/xcb_event.h>
/** Get the selection (clipboard) content.
*
* @return A string with the selection (clipboard) content.
* @function selection
*/
static xcb_window_t selection_window = XCB_NONE;
/** Get the current X selection buffer.
* \param L The Lua VM state.
* \return The number of elements pushed on stack.
* \luastack
* \lreturn A string with the current X selection buffer.
*/
int
luaA_selection_get(lua_State *L)
{
if(selection_window == XCB_NONE)
{
xcb_screen_t *screen = globalconf.screen;
uint32_t mask = XCB_CW_BACK_PIXEL | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_EVENT_MASK;
uint32_t values[] = { screen->black_pixel, 1, XCB_EVENT_MASK_PROPERTY_CHANGE };
selection_window = xcb_generate_id(globalconf.connection);
xcb_create_window(globalconf.connection, screen->root_depth, selection_window, screen->root,
0, 0, 1, 1, 0, XCB_COPY_FROM_PARENT, screen->root_visual,
mask, values);
xwindow_set_class_instance(selection_window);
xwindow_set_name_static(selection_window, "Awesome selection window");
}
xcb_convert_selection(globalconf.connection, selection_window,
XCB_ATOM_PRIMARY, UTF8_STRING, XSEL_DATA, globalconf.timestamp);
xcb_flush(globalconf.connection);
xcb_generic_event_t *event;
while(true)
{
event = xcb_wait_for_event(globalconf.connection);
if(!event)
return 0;
if(XCB_EVENT_RESPONSE_TYPE(event) != XCB_SELECTION_NOTIFY)
{
/* \todo Eventually, this may be rewritten with adding a static
* buffer, then a event handler for XCB_SELECTION_NOTIFY, then call
* xcb_event_poll_for_event_loop() and awesome_refresh(),
* then check if some static buffer has been filled with data.
* If yes, that'd be the xsel data, otherwise, re-loop.
* Anyway that's still brakes the socket or D-Bus, so maybe using
* ev_loop() would be even better.
*/
event_handle(event);
p_delete(&event);
awesome_refresh();
continue;
}
xcb_selection_notify_event_t *event_notify =
(xcb_selection_notify_event_t *) event;
if(event_notify->selection == XCB_ATOM_PRIMARY
&& event_notify->property != XCB_NONE)
{
xcb_icccm_get_text_property_reply_t prop;
xcb_get_property_cookie_t cookie =
xcb_icccm_get_text_property(globalconf.connection,
event_notify->requestor,
event_notify->property);
if(xcb_icccm_get_text_property_reply(globalconf.connection,
cookie, &prop, NULL))
{
lua_pushlstring(L, prop.name, prop.name_len);
xcb_icccm_get_text_property_reply_wipe(&prop);
xcb_delete_property(globalconf.connection,
event_notify->requestor,
event_notify->property);
p_delete(&event);
return 1;
}
else
break;
}
}
p_delete(&event);
return 0;
}
// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
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