/* 
 * The contents of this file are subject to the Mozilla Public
 * License Version 1.1 (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 Original Code is mozilla.org code.
 *
 * 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.
 *
 * Contributor(s): 
 */
#include "nsIServiceManager.h"

#include "Pluglet.h"
#include "iPlugletEngine.h"
#include "PlugletStreamListener.h"
#include "PlugletPeer.h"
#include "Registry.h"
#include "PlugletViewFactory.h"
#include "PlugletLog.h"



jmethodID Pluglet::initializeMID = NULL;
jmethodID Pluglet::startMID = NULL;
jmethodID Pluglet::stopMID = NULL;
jmethodID Pluglet::destroyMID = NULL;
jmethodID Pluglet::newStreamMID = NULL;
jmethodID Pluglet::setWindowMID = NULL;
jmethodID Pluglet::printMID = NULL;

static NS_DEFINE_IID(kIPluginInstanceIID, NS_IPLUGININSTANCE_IID);

NS_IMPL_ISUPPORTS1(Pluglet,nsIPluginInstance);

Pluglet::Pluglet(jobject object) : peer(nsnull) {
    nsresult rv;
    nsCOMPtr<iPlugletEngine> plugletEngine = 
	do_GetService(PLUGLETENGINE_ContractID, &rv);
    if (NS_FAILED(rv)) {
	PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
	       ("Pluglet::Pluglet: Cannot access iPlugletEngine service\n"));
	return;
    }

    JNIEnv *jniEnv = nsnull;
    rv = plugletEngine->GetJNIEnv(&jniEnv);
    if (NS_FAILED(rv)) {
	PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
	       ("Pluglet::Pluglet: plugletEngine->GetJNIEnv failed\n"));
	return;
    }
	
    
    jthis = jniEnv->NewGlobalRef(object);
    //nb check for null
    view = PlugletViewFactory::GetPlugletView();
    Registry::SetPeer(jthis,(jlong)this);
}

Pluglet::~Pluglet() {
    Registry::Remove(jthis);
    JNIEnv *jniEnv = nsnull;
    nsresult rv;
    nsCOMPtr<iPlugletEngine> plugletEngine = 
	do_GetService(PLUGLETENGINE_ContractID, &rv);
    if (plugletEngine) {
	rv = plugletEngine->GetJNIEnv(&jniEnv);
	if (NS_FAILED(rv)) {
	    PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
		   ("Pluglet::~Pluglet: plugletEngine->GetJNIEnv failed\n"));
	    return;
	}
	jniEnv->DeleteGlobalRef(jthis);
	if (jniEnv->ExceptionOccurred()) {
            jniEnv->ExceptionDescribe();
        }
    }

    peer = nsnull;
}

NS_METHOD Pluglet::HandleEvent(nsPluginEvent* event, PRBool* handled) {
    PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
	    ("Pluglet::HandleEvent; stub\n"));
    //nb we do not need it under win32
    return NS_OK;
}

NS_METHOD Pluglet::Initialize(nsIPluginInstancePeer* _peer) {
    PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
	    ("Pluglet::Initialize\n"));
    JNIEnv *env = nsnull;
    nsresult rv;
    nsCOMPtr<iPlugletEngine> plugletEngine = 
	do_GetService(PLUGLETENGINE_ContractID, &rv);

    rv = plugletEngine->GetJNIEnv(&env);

    if (NS_FAILED(rv)) {
	PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
	       ("Pluglet::Initialize: plugletEngine->GetJNIEnv failed\n"));
	return rv;
    }
    if (!printMID) {
	jclass clazz = env->FindClass("org/mozilla/pluglet/Pluglet");
	if (env->ExceptionOccurred()) {
            env->ExceptionDescribe();
            return NS_ERROR_FAILURE;
        }
	initializeMID = env->GetMethodID(clazz,"initialize","(Lorg/mozilla/pluglet/mozilla/PlugletPeer;)V");
        if (env->ExceptionOccurred()) {
            env->ExceptionDescribe();
            return NS_ERROR_FAILURE;
        }
	startMID = env->GetMethodID(clazz,"start","()V");
	if (env->ExceptionOccurred()) {
            env->ExceptionDescribe();
            return NS_ERROR_FAILURE;
        }
	stopMID = env->GetMethodID(clazz,"stop","()V");
	if (env->ExceptionOccurred()) {
            env->ExceptionDescribe();
            return NS_ERROR_FAILURE;
        }
	destroyMID = env->GetMethodID(clazz,"destroy","()V");
	if (env->ExceptionOccurred()) {
            env->ExceptionDescribe();
            return NS_ERROR_FAILURE;
        }
	newStreamMID = env->GetMethodID(clazz,"newStream","()Lorg/mozilla/pluglet/PlugletStreamListener;");
	if (env->ExceptionOccurred()) {
            env->ExceptionDescribe();
            return NS_ERROR_FAILURE;
        }
	setWindowMID = env->GetMethodID(clazz,"setWindow","(Ljava/awt/Frame;)V");
	if (env->ExceptionOccurred()) {
            env->ExceptionDescribe();
            return NS_ERROR_FAILURE;
        }
	printMID = env->GetMethodID(clazz,"print","(Ljava/awt/print/PrinterJob;)V");
	if (env->ExceptionOccurred()) {
            env->ExceptionDescribe();
            return NS_ERROR_FAILURE;
        }
    }
    peer = _peer;
    if (peer) {
	jobject obj = PlugletPeer::GetJObject(peer);
	if (!obj) {
	    return NS_ERROR_FAILURE;
	}
	env->CallVoidMethod(jthis,initializeMID,obj);
    }
    return NS_OK;
}

NS_METHOD Pluglet::GetPeer(nsIPluginInstancePeer* *result) {
    PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
	    ("Pluglet::GetPeer\n"));
    NS_ADDREF(*result = peer);
    return NS_OK;
}

NS_METHOD Pluglet::Start(void) {
    PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
	    ("Pluglet::Start\n"));
    JNIEnv *env = nsnull;
    nsresult rv;
    nsCOMPtr<iPlugletEngine> plugletEngine = 
	do_GetService(PLUGLETENGINE_ContractID, &rv);
    rv = plugletEngine->GetJNIEnv(&env);
    if (NS_FAILED(rv)) {
	PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
	       ("Pluglet::Start: plugletEngine->GetJNIEnv failed\n"));
	return rv;
    }
    env->CallVoidMethod(jthis,startMID);
    if (env->ExceptionOccurred()) {
            env->ExceptionDescribe();
            return NS_ERROR_FAILURE;
     }
    return NS_OK;
}
NS_METHOD Pluglet::Stop(void) {
    PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
	    ("Pluglet::Stop\n"));
    JNIEnv *env = nsnull;
    nsresult rv;
    nsCOMPtr<iPlugletEngine> plugletEngine = 
	do_GetService(PLUGLETENGINE_ContractID, &rv);
    rv = plugletEngine->GetJNIEnv(&env);
    if (NS_FAILED(rv)) {
	PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
	       ("Pluglet::Stop: plugletEngine->GetJNIEnv failed\n"));
	return rv;
    }
    env->CallVoidMethod(jthis,stopMID);
    if (env->ExceptionOccurred()) {
            env->ExceptionDescribe();
            return NS_ERROR_FAILURE;
    }
    return NS_OK;
}
NS_METHOD Pluglet::Destroy(void) {
    PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
	    ("Pluglet::Destroy\n"));
    JNIEnv *env = nsnull;
    nsresult rv;
    nsCOMPtr<iPlugletEngine> plugletEngine = 
	do_GetService(PLUGLETENGINE_ContractID, &rv);
    rv = plugletEngine->GetJNIEnv(&env);
    if (NS_FAILED(rv)) {
	PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
	       ("Pluglet::Destroy: plugletEngine->GetJNIEnv failed\n"));
	return rv;
    }

    env->CallVoidMethod(jthis,destroyMID);
    if (env->ExceptionOccurred()) {
            env->ExceptionDescribe();
            return NS_ERROR_FAILURE;
     }
    return NS_OK;
}

NS_METHOD Pluglet::NewStream(nsIPluginStreamListener** listener) {
    PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
	    ("Pluglet::NewStream\n"));
    if(!listener) {
	return NS_ERROR_FAILURE;
    }
    nsresult rv;
    JNIEnv *env;
    nsCOMPtr<iPlugletEngine> plugletEngine = 
	do_GetService(PLUGLETENGINE_ContractID, &rv);
    rv = plugletEngine->GetJNIEnv(&env);
    if (NS_FAILED(rv)) {
	PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
	       ("Pluglet::Destroy: plugletEngine->GetJNIEnv failed\n"));
	return rv;
    }

    jobject obj = env->CallObjectMethod(jthis,newStreamMID);
    if (env->ExceptionOccurred()) {
            env->ExceptionDescribe();
            return NS_ERROR_FAILURE;
    }
    if (obj) {
	*listener = new PlugletStreamListener(obj);
	(*listener)->AddRef();
    }
    return NS_OK;
}

NS_METHOD Pluglet::GetValue(nsPluginInstanceVariable variable, void *value) {
    PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
	    ("Pluglet::GetValue; stub\n"));
    return NS_ERROR_FAILURE;
}

NS_METHOD Pluglet::SetWindow(nsPluginWindow* window) {
    PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
	    ("Pluglet::SetWindow\n"));
    if (view->SetWindow(window) == PR_TRUE) {
	nsresult rv;
	JNIEnv *env;
	nsCOMPtr<iPlugletEngine> plugletEngine = 
	    do_GetService(PLUGLETENGINE_ContractID, &rv);
	rv = plugletEngine->GetJNIEnv(&env);
	if (NS_FAILED(rv)) {
	    PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
		   ("Pluglet::Destroy: plugletEngine->GetJNIEnv failed\n"));
	    return rv;
	}

	env->CallVoidMethod(jthis,setWindowMID,view->GetJObject());
	if (env->ExceptionOccurred()) {
            env->ExceptionDescribe();
            return NS_ERROR_FAILURE;
	}
    }
    return NS_OK;
}

NS_METHOD Pluglet::Print(nsPluginPrint* platformPrint) {
    PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
	    ("Pluglet::Print; stub\n"));
    //nb
    return NS_OK;
}