| /* |
| * Copyright (c) 1996, 2008, 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. |
| */ |
| |
| #ifndef AWT_OBJECT_H |
| #define AWT_OBJECT_H |
| |
| #include "awt.h" |
| #include "awt_Toolkit.h" |
| |
| #include "java_awt_Event.h" |
| #include "java_awt_AWTEvent.h" |
| #include "sun_awt_windows_WObjectPeer.h" |
| |
| /************************************************************************ |
| * AwtObject class |
| */ |
| |
| class AwtObject { |
| public: |
| class ExecuteArgs { |
| public: |
| UINT cmdId; |
| LPARAM param1; |
| LPARAM param2; |
| LPARAM param3; |
| LPARAM param4; |
| }; |
| |
| |
| /* sun.awt.windows.WObjectPeer field and method ids */ |
| static jfieldID pDataID; |
| static jfieldID destroyedID; |
| static jfieldID targetID; |
| |
| static jmethodID getPeerForTargetMID; |
| static jclass wObjectPeerClass; |
| |
| static jfieldID createErrorID; |
| |
| AwtObject(); |
| virtual ~AwtObject(); |
| |
| // Frees all the resources used by this object and then sends a message to TT to delete it. |
| // After this method has been called, this object must not be used in any way. |
| virtual void Dispose(); |
| |
| // Static method to be called from JNI methods to dispose AwtObject |
| // specified by pData |
| static void _Dispose(PDATA pData); |
| |
| INLINE CriticalSection& GetLock() { return m_Lock; } |
| |
| // Return the associated AWT peer or target object. |
| INLINE jobject GetPeer(JNIEnv *env) { |
| return m_peerObject; |
| } |
| |
| INLINE jobject GetTarget(JNIEnv *env) { |
| jobject peer = GetPeer(env); |
| if (peer != NULL) { |
| return env->GetObjectField(peer, AwtObject::targetID); |
| } else { |
| return NULL; |
| } |
| } |
| |
| INLINE jobject GetTargetAsGlobalRef(JNIEnv *env) { |
| jobject localRef = GetTarget(env); |
| if (localRef == NULL) { |
| return NULL; |
| } |
| |
| jobject globalRef = env->NewGlobalRef(localRef); |
| env->DeleteLocalRef(localRef); |
| return globalRef; |
| } |
| |
| // Return the peer associated with some target |
| static jobject GetPeerForTarget(JNIEnv *env, jobject target); |
| |
| // Java callback routines |
| // Invoke a callback on the java peer object asynchronously |
| void DoCallback(const char* methodName, const char* methodSig, ...); |
| |
| // Allocate and initialize a new event, and post it to the peer's |
| // target object. No response is expected from the target. |
| void SendEvent(jobject event); |
| |
| INLINE void EnableCallbacks(BOOL e) { m_callbacksEnabled = e; } |
| |
| // Execute any code associated with a command ID -- only classes with |
| // DoCommand() defined should associate their instances with cmdIDs. |
| virtual void DoCommand(void) { |
| DASSERT(FALSE); |
| } |
| |
| // execute given code on Windows message-pump thread |
| static LRESULT WinThreadExec(jobject peerObject, UINT cmdId, LPARAM param1 = 0L, LPARAM param2 = 0L, LPARAM param3 = 0L, LPARAM param4 = 0L); |
| // callback function to execute code on Windows message-pump thread |
| virtual LRESULT WinThreadExecProc(AwtObject::ExecuteArgs * args); |
| |
| // overridden in AwtComponent to return FALSE if any messages |
| // are being processed by this component |
| virtual BOOL CanBeDeleted() { |
| return TRUE; |
| } |
| |
| protected: |
| jobject m_peerObject; |
| BOOL m_callbacksEnabled; |
| |
| private: |
| CriticalSection m_Lock; |
| }; |
| |
| #endif // AWT_OBJECT_H |