/* * window.c - window handling functions * * Copyright © 2007-2008 Julien Danjou * * 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 #include #include "window.h" #include "button.h" #include "common/atoms.h" /** 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 buttons The buttons to grab. */ void window_buttons_grab(xcb_window_t win, button_array_t *buttons) { foreach(b, *buttons) xcb_grab_button(globalconf.connection, false, win, BUTTONMASK, XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, XCB_NONE, XCB_NONE, (*b)->button, (*b)->mod); } /** 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) { unsigned int *data = xcb_get_property_value(prop_r); unsigned int value = *data; p_delete(&prop_r); return (double) value / (double) 0xffffffff; } 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); } /** Check if client supports protocol a protocole in WM_PROTOCOL. * \param win The window. * \return True if client has the atom in protocol, false otherwise. */ bool window_hasproto(xcb_window_t win, xcb_atom_t atom) { uint32_t i; xcb_get_wm_protocols_reply_t protocols; bool ret = false; if(xcb_get_wm_protocols_reply(globalconf.connection, xcb_get_wm_protocols_unchecked(globalconf.connection, win, WM_PROTOCOLS), &protocols, NULL)) { for(i = 0; !ret && i < protocols.atoms_len; i++) if(protocols.atoms[i] == atom) ret = true; xcb_get_wm_protocols_reply_wipe(&protocols); } return ret; } /** Send WM_TAKE_FOCUS client message to window * \param win destination window */ void window_takefocus(xcb_window_t win) { xcb_client_message_event_t ev; /* Initialize all of event's fields first */ p_clear(&ev, 1); ev.response_type = XCB_CLIENT_MESSAGE; ev.window = win; ev.format = 32; ev.data.data32[1] = XCB_CURRENT_TIME; ev.type = WM_PROTOCOLS; ev.data.data32[0] = WM_TAKE_FOCUS; xcb_send_event(globalconf.connection, false, win, XCB_EVENT_MASK_NO_EVENT, (char *) &ev); } /** Sets focus on window - using xcb_set_input_focus or WM_TAKE_FOCUS * \param w Window that should get focus * \param set_input_focus Should we call xcb_set_input_focus */ void window_setfocus(xcb_window_t w, bool set_input_focus) { bool takefocus = window_hasproto(w, WM_TAKE_FOCUS); if(set_input_focus) xcb_set_input_focus(globalconf.connection, XCB_INPUT_FOCUS_PARENT, w, XCB_CURRENT_TIME); if(takefocus) window_takefocus(w); } // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80