// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qxcbatom.h"

#include <QtCore/qglobal.h>

#include <string.h>

#include <algorithm>

static const char *xcb_atomnames = {
    // window-manager <-> client protocols
    "WM_PROTOCOLS\0"
    "WM_DELETE_WINDOW\0"
    "WM_TAKE_FOCUS\0"
    "_NET_WM_PING\0"
    "_NET_WM_CONTEXT_HELP\0"
    "_NET_WM_SYNC_REQUEST\0"
    "_NET_WM_SYNC_REQUEST_COUNTER\0"
    "MANAGER\0"
    "_NET_SYSTEM_TRAY_OPCODE\0"

    // ICCCM window state
    "WM_STATE\0"
    "WM_CHANGE_STATE\0"
    "WM_CLASS\0"
    "WM_NAME\0"

    // Session management
    "WM_CLIENT_LEADER\0"
    "WM_WINDOW_ROLE\0"
    "SM_CLIENT_ID\0"
    "WM_CLIENT_MACHINE\0"

    // Clipboard
    "CLIPBOARD\0"
    "INCR\0"
    "TARGETS\0"
    "MULTIPLE\0"
    "TIMESTAMP\0"
    "SAVE_TARGETS\0"
    "CLIP_TEMPORARY\0"
    "_QT_SELECTION\0"
    "_QT_CLIPBOARD_SENTINEL\0"
    "_QT_SELECTION_SENTINEL\0"
    "CLIPBOARD_MANAGER\0"

    "RESOURCE_MANAGER\0"

    "_XSETROOT_ID\0"

    "_QT_SCROLL_DONE\0"
    "_QT_INPUT_ENCODING\0"

    "_QT_CLOSE_CONNECTION\0"

    "_MOTIF_WM_HINTS\0"

    "DTWM_IS_RUNNING\0"
    "ENLIGHTENMENT_DESKTOP\0"
    "_DT_SAVE_MODE\0"
    "_SGI_DESKS_MANAGER\0"

    // EWMH (aka NETWM)
    "_NET_SUPPORTED\0"
    "_NET_VIRTUAL_ROOTS\0"
    "_NET_WORKAREA\0"

    "_NET_MOVERESIZE_WINDOW\0"
    "_NET_WM_MOVERESIZE\0"

    "_NET_WM_NAME\0"
    "_NET_WM_ICON_NAME\0"
    "_NET_WM_ICON\0"

    "_NET_WM_PID\0"

    "_NET_WM_WINDOW_OPACITY\0"

    "_NET_WM_STATE\0"
    "_NET_WM_STATE_ABOVE\0"
    "_NET_WM_STATE_BELOW\0"
    "_NET_WM_STATE_FULLSCREEN\0"
    "_NET_WM_STATE_MAXIMIZED_HORZ\0"
    "_NET_WM_STATE_MAXIMIZED_VERT\0"
    "_NET_WM_STATE_MODAL\0"
    "_NET_WM_STATE_STAYS_ON_TOP\0"
    "_NET_WM_STATE_DEMANDS_ATTENTION\0"
    "_NET_WM_STATE_HIDDEN\0"

    "_NET_WM_USER_TIME\0"
    "_NET_WM_USER_TIME_WINDOW\0"
    "_NET_WM_FULL_PLACEMENT\0"

    "_NET_WM_WINDOW_TYPE\0"
    "_NET_WM_WINDOW_TYPE_DESKTOP\0"
    "_NET_WM_WINDOW_TYPE_DOCK\0"
    "_NET_WM_WINDOW_TYPE_TOOLBAR\0"
    "_NET_WM_WINDOW_TYPE_MENU\0"
    "_NET_WM_WINDOW_TYPE_UTILITY\0"
    "_NET_WM_WINDOW_TYPE_SPLASH\0"
    "_NET_WM_WINDOW_TYPE_DIALOG\0"
    "_NET_WM_WINDOW_TYPE_DROPDOWN_MENU\0"
    "_NET_WM_WINDOW_TYPE_POPUP_MENU\0"
    "_NET_WM_WINDOW_TYPE_TOOLTIP\0"
    "_NET_WM_WINDOW_TYPE_NOTIFICATION\0"
    "_NET_WM_WINDOW_TYPE_COMBO\0"
    "_NET_WM_WINDOW_TYPE_DND\0"
    "_NET_WM_WINDOW_TYPE_NORMAL\0"
    "_KDE_NET_WM_WINDOW_TYPE_OVERRIDE\0"

    "_KDE_NET_WM_FRAME_STRUT\0"
    "_NET_FRAME_EXTENTS\0"

    "_NET_STARTUP_INFO\0"
    "_NET_STARTUP_INFO_BEGIN\0"
    "_NET_STARTUP_ID\0"

    "_NET_SUPPORTING_WM_CHECK\0"

    "_NET_WM_CM_S0\0"

    "_NET_SYSTEM_TRAY_VISUAL\0"

    "_NET_ACTIVE_WINDOW\0"

    // Property formats
    "TEXT\0"
    "UTF8_STRING\0"
    "CARDINAL\0"

    // xdnd
    "XdndEnter\0"
    "XdndPosition\0"
    "XdndStatus\0"
    "XdndLeave\0"
    "XdndDrop\0"
    "XdndFinished\0"
    "XdndTypeList\0"
    "XdndActionList\0"

    "XdndSelection\0"

    "XdndAware\0"
    "XdndProxy\0"

    "XdndActionCopy\0"
    "XdndActionLink\0"
    "XdndActionMove\0"
    "XdndActionAsk\0"
    "XdndActionPrivate\0"

    // Xkb
    "_XKB_RULES_NAMES\0"

    // XEMBED
    "_XEMBED\0"
    "_XEMBED_INFO\0"

    // XInput2
    "Button Left\0"
    "Button Middle\0"
    "Button Right\0"
    "Button Wheel Up\0"
    "Button Wheel Down\0"
    "Button Horiz Wheel Left\0"
    "Button Horiz Wheel Right\0"
    "Abs MT Position X\0"
    "Abs MT Position Y\0"
    "Abs MT Touch Major\0"
    "Abs MT Touch Minor\0"
    "Abs MT Orientation\0"
    "Abs MT Pressure\0"
    "Abs MT Tracking ID\0"
    "Max Contacts\0"
    "Rel X\0"
    "Rel Y\0"
    // XInput2 tablet
    "Abs X\0"
    "Abs Y\0"
    "Abs Pressure\0"
    "Abs Tilt X\0"
    "Abs Tilt Y\0"
    "Abs Wheel\0"
    "Abs Distance\0"
    "Wacom Serial IDs\0"
    "INTEGER\0"
    "Rel Horiz Wheel\0"
    "Rel Vert Wheel\0"
    "Rel Horiz Scroll\0"
    "Rel Vert Scroll\0"
    "_XSETTINGS_SETTINGS\0"
    "_COMPIZ_DECOR_PENDING\0"
    "_COMPIZ_DECOR_REQUEST\0"
    "_COMPIZ_DECOR_DELETE_PIXMAP\0"
    "_COMPIZ_TOOLKIT_ACTION\0"
    "_GTK_LOAD_ICONTHEMES\0"
    "AT_SPI_BUS\0"
    "EDID\0"
    "EDID_DATA\0"
    "XFree86_DDC_EDID1_RAWDATA\0"
    "_ICC_PROFILE\0"
    // \0\0 terminates loop.
};

QXcbAtom::QXcbAtom()
{
}

void QXcbAtom::initialize(xcb_connection_t *connection)
{
    initializeAllAtoms(connection);
}

void QXcbAtom::initializeAllAtoms(xcb_connection_t *connection) {
    const char *names[QXcbAtom::NAtoms];
    const char *ptr = xcb_atomnames;

    int i = 0;
    while (*ptr) {
        names[i++] = ptr;
        while (*ptr)
            ++ptr;
        ++ptr;
    }

    Q_ASSERT(i == QXcbAtom::NAtoms);

    xcb_intern_atom_cookie_t cookies[QXcbAtom::NAtoms];

    Q_ASSERT(i == QXcbAtom::NAtoms);
    for (i = 0; i < QXcbAtom::NAtoms; ++i)
        cookies[i] = xcb_intern_atom(connection, false, strlen(names[i]), names[i]);

    for (i = 0; i < QXcbAtom::NAtoms; ++i) {
        xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(connection, cookies[i], nullptr);
        m_allAtoms[i] = reply->atom;
        free(reply);
    }
}

QXcbAtom::Atom QXcbAtom::qatom(xcb_atom_t xatom) const
{
    return static_cast<QXcbAtom::Atom>(std::find(m_allAtoms, m_allAtoms + QXcbAtom::NAtoms, xatom) - m_allAtoms);
}
