Mozilla/mozilla/java/webclient/src_moz/NavigationImpl.cpp

/* -*- 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 1.1 (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 RaptorCanvas.
 *
 * The Initial Developer of the Original Code is Kirk Baker and
 * Ian Wilkinson. Portions created by Kirk Baker and Ian Wilkinson are
 * Copyright (C) 1999 Kirk Baker and Ian Wilkinson. All
 * Rights Reserved.
 *
 * Contributor(s): Kirk Baker <kbaker@eb.com>
 *               Ian Wilkinson <iw@ennoble.com>
 *               Mark Lin <mark.lin@eng.sun.com>
 *               Mark Goddard
 *               Ed Burns <edburns@acm.org>
 *               Ashutosh Kulkarni <ashuk@eng.sun.com>
 *               Ann Sunhachawee
 */

#include "NavigationImpl.h"

#include "NavigationActionEvents.h"

#include "ns_util.h"

JNIEXPORT void JNICALL Java_org_mozilla_webclient_wrapper_1native_NavigationImpl_nativeLoadURL
(JNIEnv *env, jobject obj, jint webShellPtr, jstring urlString)
{
    jobject			jobj = obj;

#if DEBUG_RAPTOR_CANVAS
    const char	*	urlChars = (char *) ::util_GetStringUTFChars(env, 
                                                                 urlString);
    if (prLogModuleInfo) {
        PR_LOG(prLogModuleInfo, 3, 
               ("Native URL = \"%s\"\n", urlChars));
    }
    ::util_ReleaseStringUTFChars(env, urlString, urlChars);
#endif
    
    PRUnichar	*	urlStringChars = (PRUnichar *) ::util_GetStringChars(env,
                                                                         urlString);
    PRInt32         urlLength = (PRInt32) ::util_GetStringLength(env, urlString);
    
    if (::util_ExceptionOccurred(env)) {
	::util_ThrowExceptionToJava(env, "raptorWebShellLoadURL Exception: unable to extract Java string");
	if (urlStringChars != nsnull)
	  ::util_ReleaseStringChars(env, urlString, (const jchar *) urlStringChars);
	return;
      }
    
    WebShellInitContext* initContext = (WebShellInitContext *) webShellPtr;
    
    if (initContext == nsnull) {
      ::util_ThrowExceptionToJava(env, "Exception: null webShellPtr passed to raptorWebShellLoadURL");
      if (urlStringChars != nsnull)
	::util_ReleaseStringChars(env, urlString, (const jchar *) urlStringChars);
      return;
    }
    
    if (initContext->initComplete) {
      wsLoadURLEvent	* actionEvent = new wsLoadURLEvent(initContext->webNavigation, urlStringChars, urlLength);
      PLEvent			* event       = (PLEvent*) *actionEvent;
      
      ::util_PostEvent(initContext, event);
    }
    
    ::util_ReleaseStringChars(env, urlString, (const jchar *) urlStringChars);
}

JNIEXPORT void JNICALL Java_org_mozilla_webclient_wrapper_1native_NavigationImpl_nativeLoadFromStream
(JNIEnv *env, jobject obj, jint webShellPtr, jobject stream, jstring uri, 
 jstring contentType, jint contentLength, jobject loadProperties)
{
    WebShellInitContext* initContext = (WebShellInitContext *) webShellPtr;
    PRUnichar *uriStringUniChars = nsnull;
    PRInt32 uriStringUniCharsLength = -1;
    const char *contentTypeChars = nsnull;
    jobject globalStream = nsnull;
    jobject globalLoadProperties = nsnull;
    nsString *uriNsString = nsnull;
    wsLoadFromStreamEvent *actionEvent = nsnull;
    
    if (initContext == nsnull || !initContext->initComplete) {
        ::util_ThrowExceptionToJava(env, "Exception: null webShellPtr passed to nativeLoadFromStream");
        return;
    }
    uriStringUniChars = (PRUnichar *) ::util_GetStringChars(env, uri);
    uriStringUniCharsLength = (PRInt32) ::util_GetStringLength(env, uri);
    contentTypeChars = (char *) ::util_GetStringUTFChars(env, contentType);
    if (!uriStringUniChars || !contentTypeChars) {
        ::util_ThrowExceptionToJava(env, "Exception: nativeLoadFromStream: unable to convert java string to native format");
        goto NLFS_CLEANUP;
    }

    if (!(uriNsString = 
          new nsString(uriStringUniChars, uriStringUniCharsLength))) {
        ::util_ThrowExceptionToJava(env, "Exception: nativeLoadFromStream: unable to convert native string to nsString");
        goto NLFS_CLEANUP;
    }

    // the deleteGlobalRef is done in the wsLoadFromStream destructor
    if (!(globalStream = ::util_NewGlobalRef(env, stream))) {
        ::util_ThrowExceptionToJava(env, "Exception: nativeLoadFromStream: unable to create gloabal ref to stream");
        goto NLFS_CLEANUP;
    }

    if (loadProperties) {
        // the deleteGlobalRef is done in the wsLoadFromStream destructor
        if (!(globalLoadProperties = 
              ::util_NewGlobalRef(env, loadProperties))) {
            ::util_ThrowExceptionToJava(env, "Exception: nativeLoadFromStream: unable to create gloabal ref to properties");
            goto NLFS_CLEANUP;
        }
    }

    if (!(actionEvent = new wsLoadFromStreamEvent(initContext,
                                                  (void *) globalStream,
                                                  *uriNsString,
                                                  contentTypeChars,
                                                  (PRInt32) contentLength,
                                                  (void *) 
                                                  globalLoadProperties))) {
        ::util_ThrowExceptionToJava(env, "Exception: nativeLoadFromStream: can't create wsLoadFromStreamEvent");
        goto NLFS_CLEANUP;
    }
    ::util_PostEvent(initContext, (PLEvent *) *actionEvent);

 NLFS_CLEANUP:
    ::util_ReleaseStringChars(env, uri, (const jchar *) uriStringUniChars);
    ::util_ReleaseStringUTFChars(env, contentType, contentTypeChars);
    delete uriNsString;

    // note, the deleteGlobalRef for loadProperties happens in the
    // wsLoadFromStreamEvent destructor.
}


JNIEXPORT void JNICALL Java_org_mozilla_webclient_wrapper_1native_NavigationImpl_nativeRefresh
(JNIEnv *env, jobject obj, jint webShellPtr, jlong loadFlags)
{
	JNIEnv	*	pEnv = env;
	jobject		jobj = obj;
	void	*	voidResult = nsnull;

    WebShellInitContext* initContext = (WebShellInitContext *) webShellPtr;

	if (initContext == nsnull) {
		::util_ThrowExceptionToJava(env, "Exception: null webShellPtr passed to raptorWebShellRefresh");
		return;
	}

	if (initContext->initComplete) {
		wsRefreshEvent	* actionEvent = new wsRefreshEvent(initContext->webNavigation, (PRInt32) loadFlags);
        PLEvent	   	* event       = (PLEvent*) *actionEvent;

        voidResult = ::util_PostSynchronousEvent(initContext, event);

		return;
	}

	return;
}

JNIEXPORT void JNICALL Java_org_mozilla_webclient_wrapper_1native_NavigationImpl_nativeStop
(JNIEnv *env, jobject obj, jint webShellPtr)
{
	JNIEnv	*	pEnv = env;
	jobject		jobj = obj;
	
    WebShellInitContext* initContext = (WebShellInitContext *) webShellPtr;

	if (initContext == nsnull) {
		::util_ThrowExceptionToJava(env, "Exception: null webShellPtr passed to raptorWebShellStop");
		return;
	}

	if (initContext->initComplete) {
		wsStopEvent		* actionEvent = new wsStopEvent(initContext->webNavigation);
        PLEvent			* event       = (PLEvent*) *actionEvent;

        ::util_PostEvent(initContext, event);
	}
}