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Diffstat (limited to 'vcl/unx/generic/window/FWS.cxx')
-rw-r--r-- | vcl/unx/generic/window/FWS.cxx | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/vcl/unx/generic/window/FWS.cxx b/vcl/unx/generic/window/FWS.cxx new file mode 100644 index 000000000000..a90f76af90c2 --- /dev/null +++ b/vcl/unx/generic/window/FWS.cxx @@ -0,0 +1,282 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org 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 Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_vcl.hxx" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/Xatom.h> +#include "FWS.hxx" + +static Atom fwsIconAtom; + +static Atom FWS_CLIENT; +static Atom FWS_COMM_WINDOW; +static Atom FWS_PROTOCOLS; +static Atom FWS_STACK_UNDER; +static Atom FWS_PARK_ICONS; +static Atom FWS_PASS_ALL_INPUT; +static Atom FWS_PASSES_INPUT; +static Atom FWS_HANDLES_FOCUS; + +static Atom FWS_REGISTER_WINDOW; +static Atom FWS_STATE_CHANGE; +static Atom FWS_UNSEEN_STATE; +static Atom FWS_NORMAL_STATE; +static Atom WM_PROTOCOLS; +static Atom WM_CHANGE_STATE; + +static Bool fwsStackUnder; +static Bool fwsParkIcons; +static Bool fwsPassesInput; +static Bool fwsHandlesFocus; + +static Window fwsCommWindow; + +/*************************************<->*********************************** + * + * WMSupportsFWS() - + * + * Initialize our atoms and determine if the current window manager is + * providing FWS extension support. + * + *************************************<->***********************************/ + +Bool +WMSupportsFWS (Display *display, int screen) +{ + unsigned int i; + Atom protocol; + Atom propType; + int propFormat; + unsigned long propItems; + unsigned long propBytesAfter; + unsigned char *propData; + char propName[64]; + + FWS_CLIENT = XInternAtom(display, "_SUN_FWS_CLIENT", False); + FWS_COMM_WINDOW = XInternAtom(display, "_SUN_FWS_COMM_WINDOW", False); + FWS_PROTOCOLS = XInternAtom(display, "_SUN_FWS_PROTOCOLS", False); + FWS_STACK_UNDER = XInternAtom(display, "_SUN_FWS_STACK_UNDER", False); + FWS_PARK_ICONS = XInternAtom(display, "_SUN_FWS_PARK_ICONS", False); + FWS_PASS_ALL_INPUT = XInternAtom(display, "_SUN_FWS_PASS_ALL_INPUT", False); + FWS_PASSES_INPUT = XInternAtom(display, "_SUN_FWS_PASSES_INPUT", False); + FWS_HANDLES_FOCUS = XInternAtom(display, "_SUN_FWS_HANDLES_FOCUS", False); + FWS_REGISTER_WINDOW= XInternAtom(display, "_SUN_FWS_REGISTER_WINDOW",False); + FWS_STATE_CHANGE = XInternAtom(display, "_SUN_FWS_STATE_CHANGE", False); + FWS_UNSEEN_STATE = XInternAtom(display, "_SUN_FWS_UNSEEN_STATE", False); + FWS_NORMAL_STATE = XInternAtom(display, "_SUN_FWS_NORMAL_STATE", False); + WM_PROTOCOLS = XInternAtom(display, "WM_PROTOCOLS", False); + WM_CHANGE_STATE = XInternAtom(display, "WM_CHANGE_STATE", False); + + snprintf (propName, sizeof(propName), "_SUN_FWS_NEXT_ICON_%d", screen); + fwsIconAtom = XInternAtom(display, propName, False); + + if (XGetWindowProperty (display, DefaultRootWindow (display), + FWS_COMM_WINDOW, 0, 1, + False, AnyPropertyType, &propType, + &propFormat, &propItems, + &propBytesAfter, &propData) != Success) + return False; + + if (propFormat != 32 || + propItems != 1 || + propBytesAfter != 0) + { + #if OSL_DEBUG_LEVEL > 1 + fprintf (stderr, "Bad FWS_COMM_WINDOW property on root window.\n"); + #endif + XFree (propData); + return False; + } + + fwsCommWindow = *(Window *) propData; + #if OSL_DEBUG_LEVEL > 1 + fprintf (stderr, "Using fwsCommWindow = 0x%lx.\n", fwsCommWindow); + #endif + XFree (propData); + + + if (XGetWindowProperty (display, DefaultRootWindow (display), + FWS_PROTOCOLS, 0, 10, + False, AnyPropertyType, &propType, + &propFormat, &propItems, + &propBytesAfter, &propData) != Success) + { + return False; + } + + if (propFormat != 32 || + propBytesAfter != 0) + { + #if OSL_DEBUG_LEVEL > 1 + fprintf (stderr, "Bad FWS_PROTOCOLS property on root window.\n"); + #endif + XFree (propData); + return False; + } + + for (i = 0; i < propItems; ++i) + { + protocol = ((Atom *) propData)[i]; + if (protocol == FWS_STACK_UNDER) + { + fwsStackUnder = True; + #if OSL_DEBUG_LEVEL > 1 + fprintf (stderr, "Using fwsStackUnder.\n"); + #endif + } + else + if (protocol == FWS_PARK_ICONS) + { + fwsParkIcons = True; + #if OSL_DEBUG_LEVEL > 1 + fprintf (stderr, "Using fwsParkIcons.\n"); + #endif + } + else + if (protocol == FWS_PASSES_INPUT) + { + fwsPassesInput = True; + #if OSL_DEBUG_LEVEL > 1 + fprintf (stderr, "Using fwsPassesInput.\n"); + #endif + } + else + if (protocol == FWS_HANDLES_FOCUS) + { + fwsHandlesFocus = True; + #if OSL_DEBUG_LEVEL > 1 + fprintf (stderr, "Using fwsHandlesFocus.\n"); + #endif + } + } + + XFree (propData); + return True; +} + +/*************************************<->*********************************** + * + * newHandler() - + * + * Handle X errors (temporarily) to record the occurrence of BadWindow + * errors without crashing. Used to detect the FWS_COMM_WINDOW root window + * property containing an old or obsolete window id. + * + *************************************<->***********************************/ + +extern "C" { + +static Bool badWindowFound; +static int (* oldHandler) (Display *, XErrorEvent *); + +static int +newHandler (Display *display, XErrorEvent *xerror) +{ + if (xerror->error_code != BadWindow) + (*oldHandler)(display, xerror); + else + badWindowFound = True; + + return 0; +} + +} + +/*************************************<->*********************************** + * + * RegisterFwsWindow() - + * + * Send a client message to the FWS_COMM_WINDOW indicating the existance + * of a new FWS client window. Be careful to avoid BadWindow errors on + * the XSendEvent in case the FWS_COMM_WINDOW root window property had + * old/obsolete junk in it. + * + *************************************<->***********************************/ + +Bool +RegisterFwsWindow (Display *display, Window window) +{ + XClientMessageEvent msg; + + msg.type = ClientMessage; + msg.window = fwsCommWindow; + msg.message_type = FWS_REGISTER_WINDOW; + msg.format = 32; + msg.data.l[0] = window; + + XSync (display, False); + badWindowFound = False; + oldHandler = XSetErrorHandler (newHandler); + + XSendEvent (display, fwsCommWindow, False, NoEventMask, + (XEvent *) &msg); + XSync (display, False); + + XSetErrorHandler (oldHandler); + #if OSL_DEBUG_LEVEL > 1 + if (badWindowFound) + fprintf (stderr, "No FWS client window to register with.\n"); + #endif + + return !badWindowFound; +} + +/*************************************<->*********************************** + * + * AddFwsProtocols - + * + * Add the FWS protocol atoms to the WMProtocols property for the window. + * + *************************************<->***********************************/ + +void +AddFwsProtocols (Display *display, Window window) +{ + #define MAX_FWS_PROTOS 10 + + Atom fwsProtocols[ MAX_FWS_PROTOS ]; + int nProtos = 0; + + fwsProtocols[ nProtos++ ] = FWS_CLIENT; + fwsProtocols[ nProtos++ ] = FWS_STACK_UNDER; + fwsProtocols[ nProtos++ ] = FWS_STATE_CHANGE; + fwsProtocols[ nProtos++ ] = FWS_PASS_ALL_INPUT; + XChangeProperty (display, window, WM_PROTOCOLS, + XA_ATOM, 32, PropModeAppend, + (unsigned char *) fwsProtocols, nProtos); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |