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/*
* Copyright 2010, The Android Open Source Project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "DeviceOrientationClientImpl.h"
#include "WebViewCore.h"
#include <DeviceOrientationController.h>
#include <Frame.h>
#include <JNIHelp.h>
namespace android {
using JSC::Bindings::getJNIEnv;
enum javaDeviceOrientationServiceClassMethods {
DeviceOrientationServiceMethodStart = 0,
DeviceOrientationServiceMethodStop,
DeviceOrientationServiceMethodSuspend,
DeviceOrientationServiceMethodResume,
DeviceOrientationServiceMethodCount
};
static jmethodID javaDeviceOrientationServiceClassMethodIDs[DeviceOrientationServiceMethodCount];
DeviceOrientationClientImpl::DeviceOrientationClientImpl(WebViewCore* webViewCore)
: m_webViewCore(webViewCore)
, m_javaDeviceOrientationServiceObject(0)
{
ASSERT(m_webViewCore);
}
DeviceOrientationClientImpl::~DeviceOrientationClientImpl()
{
releaseJavaInstance();
}
jobject DeviceOrientationClientImpl::getJavaInstance()
{
// Lazily get the Java object. We can't do this until the WebViewCore is all
// set up.
if (m_javaDeviceOrientationServiceObject)
return m_javaDeviceOrientationServiceObject;
JNIEnv* env = getJNIEnv();
ASSERT(m_webViewCore);
jobject object = m_webViewCore->getDeviceOrientationService();
if (!object)
return 0;
// Get the Java DeviceOrientationService class.
jclass javaDeviceOrientationServiceClass = env->GetObjectClass(object);
ASSERT(javaDeviceOrientationServiceClass);
// Set up the methods we wish to call on the Java DeviceOrientationService
// class.
javaDeviceOrientationServiceClassMethodIDs[DeviceOrientationServiceMethodStart] =
env->GetMethodID(javaDeviceOrientationServiceClass, "start", "()V");
javaDeviceOrientationServiceClassMethodIDs[DeviceOrientationServiceMethodStop] =
env->GetMethodID(javaDeviceOrientationServiceClass, "stop", "()V");
javaDeviceOrientationServiceClassMethodIDs[DeviceOrientationServiceMethodSuspend] =
env->GetMethodID(javaDeviceOrientationServiceClass, "suspend", "()V");
javaDeviceOrientationServiceClassMethodIDs[DeviceOrientationServiceMethodResume] =
env->GetMethodID(javaDeviceOrientationServiceClass, "resume", "()V");
env->DeleteLocalRef(javaDeviceOrientationServiceClass);
m_javaDeviceOrientationServiceObject = getJNIEnv()->NewGlobalRef(object);
getJNIEnv()->DeleteLocalRef(object);
ASSERT(m_javaDeviceOrientationServiceObject);
return m_javaDeviceOrientationServiceObject;
}
void DeviceOrientationClientImpl::releaseJavaInstance()
{
if (m_javaDeviceOrientationServiceObject)
getJNIEnv()->DeleteGlobalRef(m_javaDeviceOrientationServiceObject);
}
void DeviceOrientationClientImpl::startUpdating()
{
jobject javaInstance = getJavaInstance();
if (!javaInstance)
return;
getJNIEnv()->CallVoidMethod(javaInstance, javaDeviceOrientationServiceClassMethodIDs[DeviceOrientationServiceMethodStart]);
}
void DeviceOrientationClientImpl::stopUpdating()
{
jobject javaInstance = getJavaInstance();
if (!javaInstance)
return;
getJNIEnv()->CallVoidMethod(javaInstance, javaDeviceOrientationServiceClassMethodIDs[DeviceOrientationServiceMethodStop]);
}
void DeviceOrientationClientImpl::onOrientationChange(PassRefPtr<DeviceOrientation> orientation)
{
m_lastOrientation = orientation;
m_controller->didChangeDeviceOrientation(m_lastOrientation.get());
}
void DeviceOrientationClientImpl::suspend()
{
jobject javaInstance = getJavaInstance();
if (!javaInstance)
return;
getJNIEnv()->CallVoidMethod(javaInstance, javaDeviceOrientationServiceClassMethodIDs[DeviceOrientationServiceMethodSuspend]);
}
void DeviceOrientationClientImpl::resume()
{
jobject javaInstance = getJavaInstance();
if (!javaInstance)
return;
getJNIEnv()->CallVoidMethod(javaInstance, javaDeviceOrientationServiceClassMethodIDs[DeviceOrientationServiceMethodResume]);
}
} // namespace android
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