/*
 * Xplugin rootless implementation functions for AppleWM extension
 *
 * Copyright (c) 2002-2012 Apple Computer, Inc. All rights reserved.
 * Copyright (c) 2003 Torrey T. Lyons. All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 * Except as contained in this notice, the name(s) of the above copyright
 * holders shall not be used in advertising or otherwise to promote the sale,
 * use or other dealings in this Software without prior written authorization.
 */

#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif

#include "xpr.h"

#include <X11/extensions/applewmproto.h>

#include "applewmExt.h"
#include "rootless.h"
#include "rootlessCommon.h"
#include <Xplugin.h>
#include <X11/X.h>
#include "quartz.h"
#include "x-hash.h"

static int
xprSetWindowLevel(WindowPtr pWin, int level)
{
    xp_window_id wid;
    xp_window_changes wc;
    RootlessWindowRec *winRec;

    // AppleWMNumWindowLevels is allowed, but is only set by the server
    // for the root window.
    if (level < 0 || level >= AppleWMNumWindowLevels) {
        return BadValue;
    }

    wid = x_cvt_vptr_to_uint(RootlessFrameForWindow(pWin, TRUE));
    if (wid == 0)
        return BadWindow;

    RootlessStopDrawing(pWin, FALSE);
    winRec = WINREC(pWin);

    if (!winRec)
        return BadWindow;

    if (XQuartzIsRootless)
        wc.window_level = normal_window_levels[level];
    else if (XQuartzShieldingWindowLevel)
        wc.window_level = XQuartzShieldingWindowLevel + 1;
    else
        wc.window_level = rooted_window_levels[level];

    if (xp_configure_window(wid, XP_WINDOW_LEVEL, &wc) != Success) {
        return BadValue;
    }

    winRec->level = level;

    return Success;
}

#if defined(XPLUGIN_VERSION) && XPLUGIN_VERSION >= 3
static int
xprAttachTransient(WindowPtr pWinChild, WindowPtr pWinParent)
{
    xp_window_id child_wid, parent_wid;
    xp_window_changes wc;

    child_wid = x_cvt_vptr_to_uint(RootlessFrameForWindow(pWinChild, TRUE));
    if (child_wid == 0)
        return BadWindow;

    if (pWinParent) {
        parent_wid =
            x_cvt_vptr_to_uint(RootlessFrameForWindow(pWinParent, TRUE));
        if (parent_wid == 0)
            return BadWindow;
    }
    else {
        parent_wid = 0;
    }

    wc.transient_for = parent_wid;

    RootlessStopDrawing(pWinChild, FALSE);

    if (xp_configure_window(child_wid, XP_ATTACH_TRANSIENT,
                            &wc) != Success) {
        return BadValue;
    }

    return Success;
}
#endif

static int
xprFrameDraw(WindowPtr pWin,
             xp_frame_class class,
             xp_frame_attr attr,
             const BoxRec *outer,
             const BoxRec *inner,
             unsigned int title_len,
             const unsigned char *title_bytes)
{
    xp_window_id wid;

    wid = x_cvt_vptr_to_uint(RootlessFrameForWindow(pWin, FALSE));
    if (wid == 0)
        return BadWindow;

    if (xp_frame_draw(wid, class, attr, outer, inner,
                      title_len, title_bytes) != Success) {
        return BadValue;
    }

    return Success;
}

static AppleWMProcsRec xprAppleWMProcs = {
    xp_disable_update,
    xp_reenable_update,
    xprSetWindowLevel,
    xp_frame_get_rect,
    xp_frame_hit_test,
    xprFrameDraw,
#if defined(XPLUGIN_VERSION) && XPLUGIN_VERSION >= 3
    xp_set_dock_proxy,
    xprAttachTransient
#elif defined(XPLUGIN_VERSION) && XPLUGIN_VERSION >= 2
    xp_set_dock_proxy,
    NULL
#else
    NULL,
    NULL
#endif
};

void
xprAppleWMInit(void)
{
    AppleWMExtensionInit(&xprAppleWMProcs);
}
