Add Registry class for storing information about java-c++

objects binding


git-svn-id: svn://10.0.0.236/trunk@49026 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/java/plugins/src/Registry.cpp

@@ -0,0 +1,87 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.0 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * The Initial Developer of the Original Code is Sun Microsystems,
+ * Inc. Portions created by Sun are Copyright (C) 1999 Sun Microsystems,
+ * Inc. All Rights Reserved. 
+ */
+
+#include "PlugletEngine.h"
+#include "Registry.h"
+
+jclass Registry::clazz = NULL;
+jmethodID Registry::setPeerMID = NULL;
+jmethodID Registry::removeMID = NULL;
+
+void Registry::SetPeer(jobject key, jlong peer) {
+    if (!clazz) {
+        Initialize();
+        if(!clazz) {
+            return;
+        }
+    }
+    JNIEnv *env = PlugletEngine::GetJNIEnv();
+    env->CallStaticVoidMethod(clazz,setPeerMID,key,peer);
+    if (env->ExceptionOccurred()) {
+        env->ExceptionDescribe();
+        return;
+    }
+}
+
+void Registry::Remove(jobject key) {
+    if (!clazz) {   // it is impossible
+        Initialize();
+        if(!clazz) {
+            return;
+        }
+    }
+    JNIEnv *env = PlugletEngine::GetJNIEnv();
+    env->CallStaticVoidMethod(clazz,removeMID,key);
+    if (env->ExceptionOccurred()) {
+        env->ExceptionDescribe();
+        return;
+    }
+}
+
+void Registry::Initialize() {
+    JNIEnv *env = PlugletEngine::GetJNIEnv();
+    if(!env) {
+        return;
+    }
+    clazz = env->FindClass("org/mozilla/pluglet/Registry");
+    if(!clazz) {
+        env->ExceptionDescribe();
+	    return;
+	}
+    setPeerMID = env->GetStaticMethodID(clazz,"setPeer","(Ljava/lang/Object;J)V");
+    if (!setPeerMID) {
+        env->ExceptionDescribe();
+        clazz = NULL;
+        return;
+    }
+    removeMID = env->GetStaticMethodID(clazz,"remove","(Ljava/lang/Object;)V");
+    if (!removeMID) {
+        env->ExceptionDescribe();
+        clazz = NULL;
+        return;
+    }
+}
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