120 lines
4.1 KiB
C
120 lines
4.1 KiB
C
/*
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* selection.c - Selection handling
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*
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* Copyright © 2009 Julien Danjou <julien@danjou.info>
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* Copyright © 2009 Gregor Best <farhaven@googlemail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include <xcb/xcb_atom.h>
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#include "selection.h"
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#include "event.h"
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#include "common/atoms.h"
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#include "common/xutil.h"
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static xcb_window_t selection_window = XCB_NONE;
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/** Get the current X selection buffer.
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* \param L The Lua VM state.
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* \return The number of elements pushed on stack.
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* \luastack
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* \lreturn A string with the current X selection buffer.
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*/
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int
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luaA_selection_get(lua_State *L)
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{
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if(selection_window == XCB_NONE)
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{
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xcb_screen_t *screen = xutil_screen_get(globalconf.connection, globalconf.default_screen);
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uint32_t mask = XCB_CW_BACK_PIXEL | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_EVENT_MASK;
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uint32_t values[] = { screen->black_pixel, 1, XCB_EVENT_MASK_PROPERTY_CHANGE };
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selection_window = xcb_generate_id(globalconf.connection);
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xcb_create_window(globalconf.connection, screen->root_depth, selection_window, screen->root,
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0, 0, 1, 1, 0, XCB_COPY_FROM_PARENT, screen->root_visual,
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mask, values);
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}
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xcb_convert_selection(globalconf.connection, selection_window,
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XCB_ATOM_PRIMARY, UTF8_STRING, XSEL_DATA, XCB_CURRENT_TIME);
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xcb_flush(globalconf.connection);
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xcb_generic_event_t *event;
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while(true)
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{
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event = xcb_wait_for_event(globalconf.connection);
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if(!event)
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return 0;
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if(XCB_EVENT_RESPONSE_TYPE(event) != XCB_SELECTION_NOTIFY)
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{
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/* \todo Eventually, this may be rewritten with adding a static
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* buffer, then a event handler for XCB_SELECTION_NOTIFY, then call
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* xcb_event_poll_for_event_loop() and awesome_refresh(),
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* then check if some static buffer has been filled with data.
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* If yes, that'd be the xsel data, otherwise, re-loop.
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* Anyway that's still brakes the socket or D-Bus, so maybe using
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* ev_loop() would be even better.
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*/
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event_handle(event);
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p_delete(&event);
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awesome_refresh();
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continue;
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}
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xcb_selection_notify_event_t *event_notify =
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(xcb_selection_notify_event_t *) event;
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if(event_notify->selection == XCB_ATOM_PRIMARY
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&& event_notify->property != XCB_NONE)
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{
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xcb_get_text_property_reply_t prop;
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xcb_get_property_cookie_t cookie =
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xcb_get_text_property(globalconf.connection,
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event_notify->requestor,
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event_notify->property);
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if(xcb_get_text_property_reply(globalconf.connection,
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cookie, &prop, NULL))
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{
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lua_pushlstring(L, prop.name, prop.name_len);
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xcb_get_text_property_reply_wipe(&prop);
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xcb_delete_property(globalconf.connection,
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event_notify->requestor,
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event_notify->property);
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p_delete(&event);
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return 1;
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}
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else
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break;
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}
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}
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p_delete(&event);
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return 0;
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}
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// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80
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