chrome/browser/download/android/download_message_bridge.h

// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_DOWNLOAD_ANDROID_DOWNLOAD_MESSAGE_BRIDGE_H_
#define CHROME_BROWSER_DOWNLOAD_ANDROID_DOWNLOAD_MESSAGE_BRIDGE_H_

#include "base/android/jni_android.h"
#include "base/android/scoped_java_ref.h"
#include "chrome/browser/download/android/download_callback_validator.h"
#include "chrome/browser/download/download_target_determiner_delegate.h"
#include "components/download/public/common/download_item.h"

namespace content {
class WebContents;
}  // namespace content

// Class for showing message to warn the user about incognito download.
class DownloadMessageBridge : public download::DownloadItem::Observer {
 public:
  using DownloadMessageRequestCallback =
      base::OnceCallback<void(bool /*accepted*/)>;

  DownloadMessageBridge();
  DownloadMessageBridge(const DownloadMessageBridge&) = delete;
  DownloadMessageBridge& operator=(const DownloadMessageBridge&) = delete;

  ~DownloadMessageBridge() override;

  void ShowIncognitoDownloadMessage(DownloadMessageRequestCallback callback);
  virtual void ShowUnsupportedDownloadMessage(
      content::WebContents* web_contents);

  // Called from Java via JNI.
  void OnConfirmed(JNIEnv* env, jlong callback_id, jboolean accepted);

 private:
  // Validator for all JNI callbacks.
  DownloadCallbackValidator validator_;
  // The corresponding java object.
  base::android::ScopedJavaGlobalRef<jobject> java_object_;
};

#endif  // CHROME_BROWSER_DOWNLOAD_ANDROID_DOWNLOAD_MESSAGE_BRIDGE_H_