/*

 * 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.  Sun designates this

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

 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

#ifdef HEADLESS

    #error This file should not be included in headless library

#endif

#include "awt_p.h"

#include "awt_Component.h"

#include <jni.h>

#include <jni_util.h>

extern int awt_numScreens;

extern AwtScreenDataPtr x11Screens;

extern struct ComponentIDs componentIDs;

extern struct MComponentPeerIDs mComponentPeerIDs;

/*

 * Class:     sun_awt_DefaultMouseInfoPeer

 * Method:    fillPointWithCoords

 * Signature: (Ljava/awt/Point)I

 */

JNIEXPORT jint JNICALL

Java_sun_awt_DefaultMouseInfoPeer_fillPointWithCoords(JNIEnv *env, jclass cls,

                                                          jobject point)

{

     static jclass pointClass = NULL;

     jclass pointClassLocal;

     static jfieldID xID, yID;

     Window rootWindow, childWindow;

     int i;

     int32_t xr, yr, xw, yw;

     uint32_t keys;

     Bool pointerFound;

     AWT_LOCK();

     if (pointClass == NULL) {

         pointClassLocal = (*env)->FindClass(env, "java/awt/Point");

         DASSERT(pointClassLocal != NULL);

         if (pointClassLocal == NULL) {

             AWT_UNLOCK();

             return (jint)0;

         }

         pointClass = (jclass)(*env)->NewGlobalRef(env, pointClassLocal);

         (*env)->DeleteLocalRef(env, pointClassLocal);

         xID = (*env)->GetFieldID(env, pointClass, "x", "I");

         yID = (*env)->GetFieldID(env, pointClass, "y", "I");

     }

     for (i = 0; i < awt_numScreens; i++) {

         pointerFound = XQueryPointer(awt_display, x11Screens[i].root,

                           &rootWindow, &childWindow,

                           &xr, &yr, &xw, &yw, &keys);

         if (pointerFound) {

             (*env)->SetIntField(env, point, xID, xr);

             (*env)->SetIntField(env, point, yID, yr);

             AWT_UNLOCK();

             return (jint)i;

         }

     }

     /* This should never happen */

     DASSERT(FALSE);

     AWT_UNLOCK();

     return (jint)0;

}

/*

 * Class:     sun_awt_DefaultMouseInfoPeer

 * Method:    isWindowUnderMouse

 * Signature: (Ljava/awt/Window)Z

 */

JNIEXPORT jboolean JNICALL Java_sun_awt_DefaultMouseInfoPeer_isWindowUnderMouse

  (JNIEnv * env, jclass cls, jobject window)

{

    Window rootWindow = None, parentWindow = None, siblingWindow = None;

    Window * children = NULL;

    int i = 0;

    int is_the_same_screen = 0;

    int32_t xr = 0, yr = 0, xw = 0, yw = 0;

    uint32_t keys = 0;

    uint32_t nchildren = 0;

    Bool pointerFound = 0;

    struct FrameData *wdata = NULL;

    jobject winPeer = NULL;

    if ((*env)->EnsureLocalCapacity(env, 1) < 0) {

        return JNI_FALSE;

    }

    winPeer = (*env)->GetObjectField(env, window, componentIDs.peer);

    if (JNU_IsNull(env, winPeer)) {

        return JNI_FALSE;

    }

    wdata = (struct FrameData *)

        JNU_GetLongFieldAsPtr(env, winPeer, mComponentPeerIDs.pData);

    (*env)->DeleteLocalRef(env, winPeer);

    if (wdata == NULL) {

        return JNI_FALSE;

    }

    AWT_LOCK();

    XQueryTree(awt_display, XtWindow(wdata->winData.comp.widget),

                    &rootWindow, &parentWindow, &children, &nchildren);

    is_the_same_screen = XQueryPointer(awt_display, parentWindow,

            &rootWindow, &siblingWindow, &xr, &yr, &xw, &yw, &keys);

    if (siblingWindow == XtWindow(wdata->winData.comp.widget) && is_the_same_screen) {

        AWT_UNLOCK();

        return JNI_TRUE;

    }

    AWT_UNLOCK();

    return JNI_FALSE ;

}