bean/native/unix/com_sun_star_comp_beans_LocalOfficeWindow.c

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <sal/config.h>
  21
  22 #include <X11/Xlib.h>
  23 #include <X11/Xutil.h>
  24 #include <X11/Intrinsic.h>
  25
  26 // to deal with gcc specific attribute "externally_visible" used in
  27 // /usr/lib/jvm/java-11-openjdk-armhf/include/linux/jni_md.h:35
  28 // via /usr/lib/jvm/java-11-openjdk-armhf/include/jni.h
  29 #if defined __clang__
  30 #pragma clang diagnostic push
  31 #pragma clang diagnostic ignored "-Wunknown-attributes"
  32 #endif
  33 #include <jni.h>
  34
  35 #include <jawt_md.h>
  36 #include <jawt.h>
  37 #if defined __clang__
  38 #pragma clang diagnostic pop
  39 #endif
  40
  41 #include <sal/types.h>
  42
  43 #define SYSTEM_XWINDOW 6
  44
  45
  46 /* type must be something like java/lang/RuntimeException
  47  */
  48 static void ThrowException(JNIEnv * env, char const * type, char const * msg) {
  49     jclass c;
  50     (*env)->ExceptionClear(env);
  51     c = (*env)->FindClass(env, type);
  52     if (c == NULL) {
  53         (*env)->ExceptionClear(env);
  54         (*env)->FatalError(
  55             env, "JNI FindClass failed");
  56     }
  57     if ((*env)->ThrowNew(env, c, msg) != 0) {
  58         (*env)->ExceptionClear(env);
  59         (*env)->FatalError(env, "JNI ThrowNew failed");
  60     }
  61 }
  62
  63 /*****************************************************************************/
  64 /*
  65  * Class:     com_sun_star_comp_beans_LocalOfficeWindow
  66  * Method:    getNativeWindowSystemType
  67  * Signature: ()I
  68  */
  69 SAL_DLLPUBLIC_EXPORT jint JNICALL Java_com_sun_star_comp_beans_LocalOfficeWindow_getNativeWindowSystemType
  70   (JNIEnv * env, jobject obj_this)
  71 {
  72     (void) env; /* avoid warning about unused parameter */
  73     (void) obj_this; /* avoid warning about unused parameter */
  74     return SYSTEM_XWINDOW;
  75 }
  76
  77
  78 /*****************************************************************************/
  79 /*
  80  * Class:     com_sun_star_beans_LocalOfficeWindow
  81  * Method:    getNativeWindow
  82  * Signature: ()J
  83  */
  84 SAL_DLLPUBLIC_EXPORT jlong JNICALL Java_com_sun_star_comp_beans_LocalOfficeWindow_getNativeWindow
  85   (JNIEnv * env, jobject obj_this)
  86 {
  87     jboolean result;
  88     jint lock;
  89
  90     JAWT awt;
  91     JAWT_DrawingSurface* ds;
  92     JAWT_DrawingSurfaceInfo* dsi;
  93     JAWT_X11DrawingSurfaceInfo* dsi_x11;
  94
  95     Drawable drawable;
  96
  97     /* Get the AWT */
  98     awt.version = JAWT_VERSION_1_3;
  99     result = JAWT_GetAWT(env, &awt);
 100     if (!result)
 101         ThrowException(env, "java/lang/RuntimeException", "JAWT_GetAWT failed");
 102
 103     /* Get the drawing surface */
 104     ds = awt.GetDrawingSurface(env, obj_this);
 105     if (ds == NULL)
 106         return 0;
 107
 108     /* Lock the drawing surface */
 109     lock = ds->Lock(ds);
 110     if ( (lock & JAWT_LOCK_ERROR) != 0)
 111         ThrowException(env, "java/lang/RuntimeException",
 112                        "Could not get AWT drawing surface.");
 113
 114     /* Get the drawing surface info */
 115     dsi = ds->GetDrawingSurfaceInfo(ds);
 116
 117     /* Get the platform-specific drawing info */
 118     dsi_x11 = (JAWT_X11DrawingSurfaceInfo*)dsi->platformInfo;
 119
 120     drawable = dsi_x11->drawable;
 121
 122     /* Free the drawing surface info */
 123     ds->FreeDrawingSurfaceInfo(dsi);
 124     /* Unlock the drawing surface */
 125     ds->Unlock(ds);
 126     /* Free the drawing surface */
 127     awt.FreeDrawingSurface(ds);
 128
 129     return (jlong)drawable;
 130 }
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */