1 files changed, 129 insertions, 0 deletions
diff --git a/WebKit/android/jni/DeviceOrientationClientImpl.cpp b/WebKit/android/jni/DeviceOrientationClientImpl.cpp
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+++ b/WebKit/android/jni/DeviceOrientationClientImpl.cpp
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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();
+
+    // 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");
+
+    m_javaDeviceOrientationServiceObject = getJNIEnv()->NewGlobalRef(object);
+    getJNIEnv()->DeleteLocalRef(object);
+
+    ASSERT(m_javaDeviceOrientationServiceObject);
+    return m_javaDeviceOrientationServiceObject;
+}
+
+void DeviceOrientationClientImpl::releaseJavaInstance()
+{
+    ASSERT(m_javaDeviceOrientationServiceObject);
+    getJNIEnv()->DeleteGlobalRef(m_javaDeviceOrientationServiceObject);
+}
+
+void DeviceOrientationClientImpl::startUpdating()
+{
+    getJNIEnv()->CallVoidMethod(getJavaInstance(),
+        javaDeviceOrientationServiceClassMethodIDs[DeviceOrientationServiceMethodStart]);
+}
+
+void DeviceOrientationClientImpl::stopUpdating()
+{
+    getJNIEnv()->CallVoidMethod(getJavaInstance(),
+        javaDeviceOrientationServiceClassMethodIDs[DeviceOrientationServiceMethodStop]);
+}
+
+void DeviceOrientationClientImpl::onOrientationChange(PassRefPtr<DeviceOrientation> orientation)
+{
+    m_lastOrientation = orientation;
+    m_controller->didChangeDeviceOrientation(m_lastOrientation.get());
+}
+
+void DeviceOrientationClientImpl::suspend()
+{
+    getJNIEnv()->CallVoidMethod(getJavaInstance(),
+        javaDeviceOrientationServiceClassMethodIDs[DeviceOrientationServiceMethodSuspend]);
+}
+
+void DeviceOrientationClientImpl::resume()
+{
+    getJNIEnv()->CallVoidMethod(getJavaInstance(),
+        javaDeviceOrientationServiceClassMethodIDs[DeviceOrientationServiceMethodResume]);
+}
+
+} // namespace android