1 /*
   2  * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #import "sun_lwawt_macosx_CDragSourceContextPeer.h"
  27 
  28 #import <JavaNativeFoundation/JavaNativeFoundation.h>
  29 
  30 #import "CDragSource.h"
  31 #import "ThreadUtilities.h"
  32 
  33 
  34 /*
  35  * Class:     sun_lwawt_macosx_CDragSourceContextPeer
  36  * Method:    createNativeDragSource
  37  * Signature: (Ljava/awt/Component;JLjava/awt/datatransfer/Transferable;
  38                Ljava/awt/event/InputEvent;IIIIJIJIII[JLjava/util/Map;)J
  39  */
  40 JNIEXPORT jlong JNICALL Java_sun_lwawt_macosx_CDragSourceContextPeer_createNativeDragSource
  41   (JNIEnv *env, jobject jthis, jobject jcomponent, jlong jnativepeer, jobject jtransferable,
  42    jobject jtrigger, jint jdragposx, jint jdragposy, jint jextmodifiers, jint jclickcount, jlong jtimestamp,
  43    jlong nsdragimageptr, jint jdragimageoffsetx, jint jdragimageoffsety,
  44    jint jsourceactions, jlongArray jformats, jobject jformatmap)
  45 {
  46     id controlObj = (id) jlong_to_ptr(jnativepeer);
  47     __block CDragSource* dragSource = nil;
  48 
  49 JNF_COCOA_ENTER(env);
  50 
  51     // Global references are disposed when the DragSource is removed
  52     jobject gComponent = JNFNewGlobalRef(env, jcomponent);
  53     jobject gDragSourceContextPeer = JNFNewGlobalRef(env, jthis);
  54     jobject gTransferable = JNFNewGlobalRef(env, jtransferable);
  55     jobject gTriggerEvent = JNFNewGlobalRef(env, jtrigger);
  56     jlongArray gFormats = JNFNewGlobalRef(env, jformats);
  57     jobject gFormatMap = JNFNewGlobalRef(env, jformatmap);
  58 
  59     [ThreadUtilities performOnMainThreadWaiting:YES block:^(){
  60         dragSource = [[CDragSource alloc] init:gDragSourceContextPeer
  61                                      component:gComponent
  62                                        control:controlObj
  63                                   transferable:gTransferable
  64                                   triggerEvent:gTriggerEvent
  65                                       dragPosX:jdragposx
  66                                       dragPosY:jdragposy
  67                                      modifiers:jextmodifiers
  68                                     clickCount:jclickcount
  69                                      timeStamp:jtimestamp
  70                                      dragImage:nsdragimageptr
  71                               dragImageOffsetX:jdragimageoffsetx
  72                               dragImageOffsetY:jdragimageoffsety
  73                                  sourceActions:jsourceactions
  74                                        formats:gFormats
  75                                      formatMap:gFormatMap];
  76     }];
  77 JNF_COCOA_EXIT(env);
  78 
  79     if (dragSource) {
  80         CFRetain(dragSource); // GC
  81         [dragSource release];
  82     }
  83     return ptr_to_jlong(dragSource);
  84 }
  85 
  86 /*
  87  * Class:     sun_lwawt_macosx_CDragSourceContextPeer
  88  * Method:    doDragging
  89  * Signature: (J)V
  90  */
  91 JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CDragSourceContextPeer_doDragging
  92   (JNIEnv *env, jobject jthis, jlong nativeDragSourceVal)
  93 {
  94     AWT_ASSERT_NOT_APPKIT_THREAD;
  95 
  96     CDragSource* dragSource = (CDragSource*) jlong_to_ptr(nativeDragSourceVal);
  97 
  98 JNF_COCOA_ENTER(env);
  99     [dragSource drag];
 100 JNF_COCOA_EXIT(env);
 101 }
 102 
 103 /*
 104  * Class:     sun_lwawt_macosx_CDragSourceContextPeer
 105  * Method:    releaseNativeDragSource
 106  * Signature: (J)V
 107  */
 108 JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CDragSourceContextPeer_releaseNativeDragSource
 109   (JNIEnv *env, jobject jthis, jlong nativeDragSourceVal)
 110 {
 111       CDragSource* dragSource = (CDragSource*) jlong_to_ptr(nativeDragSourceVal);
 112 
 113 JNF_COCOA_ENTER(env);
 114     [dragSource removeFromView:env];
 115 JNF_COCOA_EXIT(env);
 116 }