/*

 * Copyright (c) 2002, 2014, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package sun.awt.X11;

import java.security.AccessController;

import jdk.internal.misc.Unsafe;

import sun.security.action.GetPropertyAction;

final class XlibWrapper {

    static Unsafe unsafe = Unsafe.getUnsafe();

    // strange constants

    static final int MAXSIZE = 32767;

    static final int MINSIZE = 1;

    // define a private constructor here to prevent this class and all

    // its descendants from being created

    private XlibWrapper()

    {

    }

/*

   Display *XOpenDisplay(display_name)

   char *display_name;

*/

    static final String[] eventToString =

    {"<none:0>", "<none:1>", "KeyPress", "KeyRelease", "ButtonPress", "ButtonRelease",

     "MotionNotify", "EnterNotify", "LeaveNotify", "FocusIn", "FocusOut",

     "KeymapNotify", "Expose", "GraphicsExpose", "NoExpose", "VisibilityNotify",

     "CreateNotify", "DestroyNotify", "UnmapNotify", "MapNotify", "MapRequest",

     "ReparentNotify", "ConfigureNotify", "ConfigureRequest", "GravityNotify",

     "ResizeRequest", "CirculateNotify", "CirculateRequest", "PropertyNotify",

     "SelectionClear", "SelectionRequest", "SelectionNotify", "ColormapNotify",

     "ClientMessage", "MappingNotify", "LASTEvent"};

    static native void XFree(long ptr);

    static native void memcpy(long dest_ptr, long src_ptr, long length);

    static native long getAddress(Object o);

    static native void copyIntArray(long dest_ptr, Object array, int size_bytes);

    static native void copyLongArray(long dest_ptr, Object array, int size_bytes);

    /**

     * Gets byte string from str_ptr and copies it into byte array

     * String should be NULL terminated.

     */

    static native byte[] getStringBytes(long str_ptr);

    static  native long XOpenDisplay(long display);

    static  native void XCloseDisplay(long display);

    static  native long XDisplayString(long display);

    static  native void XSetCloseDownMode(long display, int close_mode);

    static  native long DefaultScreen(long display);

    static native long ScreenOfDisplay(long display, long screen_number);

    static native int DoesBackingStore(long screen);

    static native  long DisplayWidth(long display, long screen);

    static native  long DisplayWidthMM(long display, long screen);

    static native long DisplayHeight(long display, long screen);

    static native long DisplayHeightMM(long display, long screen);

    static  native long RootWindow(long display, long screen_number);

    static native int ScreenCount(long display);

/*

   Window XCreateWindow(display, parent, x, y, width, height,

   border_width, depth,

   class, visual, valuemask, attributes)

   Display *display;

   Window parent;

   int x, y;

   unsigned int width, height;

   unsigned int border_width;

   int depth;

   unsigned int class;

   Visual *visual

   unsigned long valuemask;

   XSetWindowAttributes *attributes;

*/

    static native long XCreateWindow(long display, long parent, int x,int  y, int width, int height, int border_width, int depth, long wclass, long visual, long valuemask, long attributes);

    static native void XDestroyWindow(long display, long window);

    static native int XGrabPointer(long display, long grab_window,

                                   int owner_events, int event_mask, int pointer_mode,

                                   int keyboard_mode, long confine_to, long cursor, long time);

    static native void XUngrabPointer(long display, long time);

    static native int XGrabKeyboard(long display, long grab_window,

                                    int owner_events, int pointer_mode,

                                    int keyboard_mode, long time);

    static native void XUngrabKeyboard(long display, long time);

    static native void XGrabServer(long display);

    static native void XUngrabServer(long display);

/*

void XSetWMProperties(display, w, window_name, icon_name,

argv, argc, normal_hints, wm_hints, class_hints)

Display *display;

Window w;

XTextProperty *window_name;

XTextProperty *icon_name;

char **argv;

int argc;

XSizeHints *normal_hints;

XWMHints *wm_hints;

XClassHint *class_hints;

*/

/*

XMapWindow(display, w)

Display *display;

Window w;

*/

    static  native void XMapWindow(long display, long window);

    static  native void XMapRaised(long display, long window);

    static  native void XRaiseWindow(long display, long window);

    static native void XLowerWindow(long display, long window);

    static native void XRestackWindows(long display, long windows, int length);

    static native void XConfigureWindow(long display, long window,

            long value_mask, long values);

    static native void XSetInputFocus(long display, long window);

    static native void XSetInputFocus2(long display, long window, long time);

    static native long XGetInputFocus(long display);

/*

XUnmapWindow(display, w)

Display *display;

Window w;

*/

    static  native void XUnmapWindow(long display, long window);

/*

  XSelectInput(display, w, event_mask)

  Display *display;

  Window w;

  long event_mask;

*/

    static  native void XSelectInput(long display, long window, long event_mask);

    /*

       XNextEvent(display, event_return)

       Display *display;

       XEvent *event_return;

    */

    static  native void XNextEvent(long display,long ptr);

    /*

     XMaskEvent(display, event_mask, event_return)

           Display *display;

           long event_mask;

           XEvent *event_return;

     */

    static native void XMaskEvent(long display, long event_mask, long event_return);

    static native void XWindowEvent(long display, long window, long event_mask, long event_return);

    /*

      Bool XFilterEvent(event, w)

           XEvent *event;

           Window w;

    */

    static native boolean XFilterEvent(long ptr, long window);

/*

     Bool XSupportsLocale()

*/

static native boolean XSupportsLocale();

/*

     char *XSetLocaleModifiers(modifier_list)

           char *modifier_list;

*/

static native String XSetLocaleModifiers(String modifier_list);

    static  native int XTranslateCoordinates(

                                             long display, long src_w, long dest_w,

                                             long src_x, long src_y,

                                             long dest_x_return, long dest_y_return,

                                             long child_return);

    /*

       XPeekEvent(display, event_return)

       Display *display;

       XEvent *event_return;

    */

    static  native void XPeekEvent(long display,long ptr);

/*

  XFlush(display)

  Display *display;

*/

    static native void XFlush(long display);

/*

  XSync(display, discard)

  Display *display;

  Bool discard;

*/

    static native void XSync(long display,int discard);

/*    XMoveResizeWindow(display, w, x, y, width, height)

      Display *display;

      Window w;

      int x, y;

      unsigned int width, height;

*/

    static native void XMoveResizeWindow(long display, long window, int x, int y, int width, int height);

    static native void XResizeWindow(long display, long window, int width, int height);

    static native void XMoveWindow(long display, long window, int x, int y);

    /*

     Bool XQueryPointer(display, w, root_return, child_return,

     root_x_return, root_y_return,

                          win_x_return, win_y_return,

     mask_return)

           Display *display;

           Window w;

           Window *root_return, *child_return;

           int *root_x_return, *root_y_return;

           int *win_x_return, *win_y_return;

           unsigned int *mask_return;

*/

 static native boolean  XQueryPointer (long display, long window, long root_return, long child_return, long root_x_return, long root_y_return, long win_x_return, long win_y_return, long mask_return);

/*    XFreeCursor(display, cursor)

           Display *display;

           Cursor cursor;

*/

 static native void XFreeCursor(long display, long cursor);

/*

   XSetWindowBackground(display, w, background_pixel)

   Display *display;

   Window w;

   unsigned long background_pixel;

*/

    static native void XSetWindowBackground(long display, long window, long background_pixel);

    static native int XEventsQueued(long display, int mode);

/*

  Atom XInternAtom(display, atom_name, only_if_exists)

  Display *display;

  char *atom_name;

  Bool only_if_exists;

*/

    static native int XInternAtoms(long display, String[] names, boolean only_if_exists, long atoms);

    static native void SetProperty(long display, long window, long atom, String str);

    static native String GetProperty(long display ,long window, long atom);

    static native long InternAtom(long display, String string, int only_if_exists);

    static native int XGetWindowProperty(long display, long window, long atom,

                                         long long_offset, long long_length,

                                         long delete, long req_type, long actualy_type,

                                         long actualy_format, long nitems_ptr,

                                         long bytes_after, long data_ptr);

    static native void XChangePropertyImpl(long display, long window, long atom,

                                           long type, int format, int mode, long data,

                                           int nelements);

    static void XChangeProperty(long display, long window, long atom,

                                long type, int format, int mode, long data,

                                int nelements) {

        // TODO: handling of XChangePropertyImpl return value, if not Success - don't cache

        if (XPropertyCache.isCachingSupported() &&

            XToolkit.windowToXWindow(window) != null &&

            WindowPropertyGetter.isCacheableProperty(XAtom.get(atom)) &&

            mode == XConstants.PropModeReplace)

        {

            int length = (format / 8) * nelements;

            XPropertyCache.storeCache(

                new XPropertyCache.PropertyCacheEntry(format,

                                                      nelements,

                                                      0,

                                                      data,

                                                      length),

                window,

                XAtom.get(atom));

        }

        XChangePropertyImpl(display, window, atom, type, format, mode, data, nelements);

    }

    static native void XChangePropertyS(long display, long window, long atom,

                                       long type, int format, int mode, String value);

    static native void XDeleteProperty(long display, long window, long atom);

    static native void XSetTransientFor(long display, long window, long transient_for_window);

    static native void XSetWMHints(long display, long window, long wmhints);

    static native void XGetWMHints(long display, long window, long wmhints);

    static native long XAllocWMHints();

    static native int XGetPointerMapping(long display, long map, int buttonNumber);

    static native String XGetDefault(long display, String program, String option);

    static native long getScreenOfWindow(long display, long window);

    static native long XScreenNumberOfScreen(long screen);

    static native int XIconifyWindow(long display, long window, long screenNumber);

    static native String ServerVendor(long display);

    static native int VendorRelease(long display);

    static native boolean IsXsunKPBehavior(long display);

    static native boolean IsSunKeyboard(long display);

    static native boolean IsKanaKeyboard(long display);

    static native void XBell(long display, int percent);

 /*

          Cursor XCreateFontCursor(display, shape)

           Display *display;

           unsigned int shape;

           we always pass int as shape param.

           perhaps later we will need to change type of shape to long.

*/

    static native int XCreateFontCursor(long display, int shape);

/*

     Pixmap XCreateBitmapFromData(display, d, data, width,

     height)

           Display *display;

           Drawable d;

           char *data;

           unsigned int width, height;

*/

    static native long XCreateBitmapFromData(long display, long drawable, long data, int width, int height);

 /*

      XFreePixmap(display, pixmap)

           Display *display;

           Pixmap pixmap;

  */

   static native void XFreePixmap(long display, long pixmap);

  /*

     Cursor XCreatePixmapCursor(display, source, mask,

     foreground_color, background_color, x, y)

           Display *display;

           Pixmap source;

           Pixmap mask;

           XColor *foreground_color;

           XColor *background_color;

           unsigned int x, y;

    */

   static native long XCreatePixmapCursor(long display, long source, long mask, long fore, long back, int x, int y);

    /*

         Status XQueryBestCursor(display, d, width, height,

     width_return, height_return)

           Display *display;

           Drawable d;

           unsigned int width, height;

           unsigned int *width_return, *height_return;

    */

    static native boolean XQueryBestCursor(long display, long drawable, int width, int height, long width_return, long height_return);

    /*

     Status XAllocColor(display, colormap, screen_in_out)

           Display *display;

           Colormap colormap;

           XColor *screen_in_out;

  */

    static native boolean XAllocColor( long display, long colormap, long screen_in_out);

    static native long SetToolkitErrorHandler();

    static native void XSetErrorHandler(long handler);

    static native int CallErrorHandler(long handler, long display, long event_ptr);

 /*

      XChangeWindowAttributes(display, w, valuemask, attributes)

           Display *display;

           Window w;

           unsigned long valuemask;

           XSetWindowAttributes *attributes;

  */

    static native void XChangeWindowAttributes(long display, long window, long valuemask, long attributes);

    static native int XGetWindowAttributes(long display, long window, long attr_ptr);

    static native int XGetGeometry(long display, long drawable, long root_return, long x_return, long y_return,

                                   long width_return, long height_return, long border_width_return, long depth_return);

    static native int XGetWMNormalHints(long display, long window, long hints, long supplied_return);

    static native void XSetWMNormalHints(long display, long window, long hints);

    static native void XSetMinMaxHints(long display, long window, int x, int y, int width, int height, long flags);

    static native long XAllocSizeHints();

    static native int XSendEvent(long display, long window, boolean propagate, long event_mask, long event);

    static native void XPutBackEvent(long display, long event);

    static native int XQueryTree(long display, long window, long root_return, long parent_return, long children_return, long nchildren_return);

    static native long XGetVisualInfo(long display, long vinfo_mask, long vinfo_template, long nitems_return);

    static native void XReparentWindow(long display, long window, long parent, int x, int y);

    static native void XConvertSelection(long display, long selection,

                                         long target, long property,

                                         long requestor, long time);

    static native void XSetSelectionOwner(long display, long selection,

                                          long owner, long time);

    static native long XGetSelectionOwner(long display, long selection);

    static native String XGetAtomName(long display, long atom);

    static native long XMaxRequestSize(long display);

    static native long XCreatePixmap(long display, long drawable, int width, int height, int depth);

    static native long XCreateImage(long display, long visual_ptr, int depth, int format,

                                    int offset, long data, int width, int height, int bitmap_pad,

                                    int bytes_per_line);

    static native void XDestroyImage(long image);

    static native void XPutImage(long display, long drawable, long gc, long image,

                                 int src_x, int src_y, int dest_x, int dest_y,

                                 int width, int height);

    static native long XCreateGC(long display, long drawable, long valuemask, long values);

    static native void XFreeGC(long display, long gc);

    static native void XSetWindowBackgroundPixmap(long display, long window, long pixmap);

    static native void XClearWindow(long display, long window);

    static native int XGetIconSizes(long display, long window, long ret_sizes, long ret_count);

    static native int XdbeQueryExtension(long display, long major_version_return,

                                         long minor_version_return);

    static native boolean XQueryExtension(long display, String name, long mop_return,

                                         long feve_return, long err_return);

    static native boolean IsKeypadKey(long keysym);

    static native long XdbeAllocateBackBufferName(long display, long window, int swap_action);

    static native int XdbeDeallocateBackBufferName(long display, long buffer);

    static native int XdbeBeginIdiom(long display);

    static native int XdbeEndIdiom(long display);

    static native int XdbeSwapBuffers(long display, long swap_info, int num_windows);

    static native void XQueryKeymap(long display, long vector);

    static native long XKeycodeToKeysym(long display, int keycode, int index);

    static native int XKeysymToKeycode(long display, long keysym);

    // xkb-related

    static native int XkbGetEffectiveGroup(long display);

    static native long XkbKeycodeToKeysym(long display, int keycode, int group, int level);

    static native void XkbSelectEvents(long display, long device, long bits_to_change, long values_for_bits);

    static native void XkbSelectEventDetails(long display, long device, long event_type,

                                              long bits_to_change, long values_for_bits);

    static native boolean XkbQueryExtension(long display, long opcode_rtrn, long event_rtrn,

              long error_rtrn, long major_in_out, long minor_in_out);

    static native boolean XkbLibraryVersion(long lib_major_in_out, long lib_minor_in_out);

    static native long XkbGetMap(long display, long which, long device_spec);

    static native long XkbGetUpdatedMap(long display, long which, long xkb);

    static native void XkbFreeKeyboard(long xkb, long which, boolean free_all);

    static native boolean XkbTranslateKeyCode(long xkb, int keycode, long mods, long mods_rtrn, long keysym_rtrn);

    static native void XkbSetDetectableAutoRepeat(long display, boolean detectable);

    static native void XConvertCase(long keysym,

                                    long keysym_lowercase,

                                    long keysym_uppercase);

    static native long XGetModifierMapping(long display);

    static native void XFreeModifiermap(long keymap);

    static native void XRefreshKeyboardMapping(long event);

    static native void XChangeActivePointerGrab(long display, int mask,