Handle media access permission request

android_webview/native/permission/aw_permission_request.h

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef ANDROID_WEBVIEW_NATIVE_PERMISSION_AW_PERMISSION_REQUEST_H
+#define ANDROID_WEBVIEW_NATIVE_PERMISSION_AW_PERMISSION_REQUEST_H
+
+#include "base/android/jni_helper.h"
+#include "base/android/scoped_java_ref.h"
+#include "base/memory/weak_ptr.h"
+#include "url/gurl.h"
+
+namespace android_webview {
+
+class AwPermissionRequestDelegate;
+
+// This class wraps a permission request, it works with PermissionRequestHandler
+// and its' Java peer to represent the request to AwContentsClient.
+// The specific permission request should implement the
+// AwPermissionRequestDelegate interface, See MediaPermissionRequest.
+class AwPermissionRequest {
+ public:
+  // The definition must synced with Android's
+  // android.webkit.PermissionRequest.
+  enum Resource {
+    Geolocation = 1 << 0,
+    VideoCapture = 1 << 1,
+    AudioCapture = 1 << 2
+  };
+
+  // Take the ownership of |delegate|.
+  AwPermissionRequest(scoped_ptr<AwPermissionRequestDelegate> delegate);
+  virtual ~AwPermissionRequest();
+
+  base::WeakPtr<AwPermissionRequest> GetWeakPtr() {
+    return weak_factory_.GetWeakPtr();
+  }
+
+  // Create and return Java peer.
+  base::android::ScopedJavaLocalRef<jobject> CreateJavaPeer();

[mkosiba (inactive), 2014/04/29 17:29:53]

The 2 separate methods for creating and getting a java object are a bit
confusing. Especially that you don't actually use the result of one of them...

[michaelbai, 2014/04/29 19:28:05]

Thanks, this left from previous design, and just found the Java object could be
GC-ed between CreateJavaPeer() and GetJavaObject()

On 2014/04/29 17:29:53, mkosiba wrote:

+
+  // Return the Java peer.
+  base::android::ScopedJavaLocalRef<jobject> GetJavaObject();
+
+  // Invoked by Java peer when request is processed, |granted| indicates the
+  // request was granted or not.
+  void OnAccept(JNIEnv* env, jobject jcaller, jboolean granted);
+
+  // Return the origin which initiated the request.
+  const GURL& GetOrigin();
+
+  // Return the resources origin requested.
+  int64 GetResources();
+
+ private:
+  friend class TestAwPermissionRequest;
+
+  scoped_ptr<AwPermissionRequestDelegate> delegate_;
+  JavaObjectWeakGlobalRef java_ref_;
+
+  base::WeakPtrFactory<AwPermissionRequest> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(AwPermissionRequest);
+};
+
+bool RegisterAwPermissionRequest(JNIEnv* env);
+
+}  // namespace android_webivew
+
+#endif  // ANDROID_WEBVIEW_NATIVE_PERMISSION_AW_PERMISSION_REQUEST_H