/* * xwindow.c - X window handling functions * * Copyright © 2007-2009 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 #include #include "xwindow.h" #include "objects/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 xwindow_set_state(xcb_window_t win, uint32_t state) { uint32_t 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 xwindow_get_state_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 0 on error. */ uint32_t xwindow_get_state_reply(xcb_get_property_cookie_t cookie) { /* If no property is set, we just assume a sane default. */ uint32_t result = XCB_ICCCM_WM_STATE_NORMAL; xcb_get_property_reply_t *prop_r; if((prop_r = xcb_get_property_reply(globalconf.connection, cookie, NULL))) { if(xcb_get_property_value_length(prop_r)) result = *(uint32_t *) xcb_get_property_value(prop_r); 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 xwindow_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 + border; ce.y = geometry.y + border; 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 xwindow_buttons_grab(xcb_window_t win, button_array_t *buttons) { if(win == XCB_NONE) return; /* Ungrab everything first */ xcb_ungrab_button(globalconf.connection, XCB_BUTTON_INDEX_ANY, win, XCB_BUTTON_MASK_ANY); 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)->modifiers); } /** Grab key on a window. * \param win The window. * \param k The key. */ static void xwindow_grabkey(xcb_window_t win, keyb_t *k) { if(k->keycode) xcb_grab_key(globalconf.connection, true, win, k->modifiers, k->keycode, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC); else if(k->keysym) { xcb_keycode_t *keycodes = xcb_key_symbols_get_keycode(globalconf.keysyms, k->keysym); if(keycodes) { for(xcb_keycode_t *kc = keycodes; *kc; kc++) xcb_grab_key(globalconf.connection, true, win, k->modifiers, *kc, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC); p_delete(&keycodes); } } } void xwindow_grabkeys(xcb_window_t win, key_array_t *keys) { /* Ungrab everything first */ xcb_ungrab_key(globalconf.connection, XCB_GRAB_ANY, win, XCB_BUTTON_MASK_ANY); foreach(k, *keys) xwindow_grabkey(win, *k); } /** Send a request for a window's opacity. * \param win The window * \return A cookie for xwindow_get_opacity_from_reply(). */ xcb_get_property_cookie_t xwindow_get_opacity_unchecked(xcb_window_t win) { return xcb_get_property_unchecked(globalconf.connection, false, win, _NET_WM_WINDOW_OPACITY, XCB_ATOM_CARDINAL, 0L, 1L); } /** Get the opacity of a window. * \param win The window. * \return The opacity, between 0 and 1 or -1 or no opacity set. */ double xwindow_get_opacity(xcb_window_t win) { xcb_get_property_cookie_t prop_c = xwindow_get_opacity_unchecked(win); return xwindow_get_opacity_from_cookie(prop_c); } /** Get the opacity of a window. * \param cookie A cookie for a reply to a get property request for _NET_WM_WINDOW_OPACITY. * \return The opacity, between 0 and 1. */ double xwindow_get_opacity_from_cookie(xcb_get_property_cookie_t cookie) { xcb_get_property_reply_t *prop_r = xcb_get_property_reply(globalconf.connection, cookie, NULL); if(prop_r && prop_r->value_len && prop_r->format == 32) { uint32_t value = *(uint32_t *) xcb_get_property_value(prop_r); 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 xwindow_set_opacity(xcb_window_t win, double opacity) { if(win) { if(opacity >= 0 && opacity <= 1) { uint32_t real_opacity = opacity * 0xffffffff; xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE, win, _NET_WM_WINDOW_OPACITY, XCB_ATOM_CARDINAL, 32, 1L, &real_opacity); } else xcb_delete_property(globalconf.connection, win, _NET_WM_WINDOW_OPACITY); } } /** Send WM_TAKE_FOCUS client message to window * \param win destination window */ void xwindow_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] = globalconf.timestamp; 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); } /** Set window cursor. * \param w The window. * \param c The cursor. */ void xwindow_set_cursor(xcb_window_t w, xcb_cursor_t c) { xcb_change_window_attributes(globalconf.connection, w, XCB_CW_CURSOR, (const uint32_t[]) { c }); } /** Set a window border color. * \param w The window. * \param color The color. */ void xwindow_set_border_color(xcb_window_t w, color_t *color) { if(w) xcb_change_window_attributes(globalconf.connection, w, XCB_CW_BORDER_PIXEL, &color->pixel); } /** Turn a cairo surface into a pixmap with depth 1 */ static xcb_pixmap_t xwindow_shape_pixmap(int width, int height, cairo_surface_t *surf) { xcb_pixmap_t pixmap = xcb_generate_id(globalconf.connection); cairo_surface_t *dest; cairo_t *cr; xcb_create_pixmap(globalconf.connection, 1, pixmap, globalconf.screen->root, width, height); dest = cairo_xcb_surface_create_for_bitmap(globalconf.connection, globalconf.screen, pixmap, width, height); cr = cairo_create(dest); cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); cairo_set_source_surface(cr, surf, 0, 0); cairo_paint(cr); cairo_destroy(cr); cairo_surface_flush(dest); cairo_surface_finish(dest); cairo_surface_destroy(dest); return pixmap; } /** Set one of a window's shapes */ void xwindow_set_shape(xcb_window_t win, int width, int height, enum xcb_shape_sk_t kind, cairo_surface_t *surf, int offset) { xcb_pixmap_t pixmap = XCB_NONE; if (surf) pixmap = xwindow_shape_pixmap(width, height, surf); xcb_shape_mask(globalconf.connection, XCB_SHAPE_SO_SET, kind, win, offset, offset, pixmap); if (pixmap != XCB_NONE) xcb_free_pixmap(globalconf.connection, pixmap); } /** Calculate the position change that a window needs applied. * \param gravity The window gravity that should be used. * \param change_width_before The window width difference that will be applied. * \param change_height_before The window height difference that will be applied. * \param change_width_after The window width difference that will be applied. * \param change_height_after The window height difference that will be applied. * \param dx On return, this will be set to the amount the pixel has to be moved. * \param dy On return, this will be set to the amount the pixel has to be moved. */ void xwindow_translate_for_gravity(xcb_gravity_t gravity, int16_t change_width_before, int16_t change_height_before, int16_t change_width_after, int16_t change_height_after, int16_t *dx, int16_t *dy) { int16_t x = 0, y = 0; int16_t change_height = change_height_before + change_height_after; int16_t change_width = change_width_before + change_width_after; switch (gravity) { case XCB_GRAVITY_WIN_UNMAP: case XCB_GRAVITY_NORTH_WEST: break; case XCB_GRAVITY_NORTH: x = -change_width / 2; break; case XCB_GRAVITY_NORTH_EAST: x = -change_width; break; case XCB_GRAVITY_WEST: y = -change_height / 2; break; case XCB_GRAVITY_CENTER: x = -change_width / 2; y = -change_height / 2; break; case XCB_GRAVITY_EAST: x = -change_width; y = -change_height / 2; break; case XCB_GRAVITY_SOUTH_WEST: y = -change_height; break; case XCB_GRAVITY_SOUTH: x = -change_width / 2; y = -change_height; break; case XCB_GRAVITY_SOUTH_EAST: x = -change_width; y = -change_height; break; case XCB_GRAVITY_STATIC: x = -change_width_before; x = -change_height_before; break; } if (dx) *dx = x; if (dy) *dy = y; } // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80