components/image_fetcher/image_fetcher_bridge.h

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_IMAGE_FETCHER_IMAGE_FETCHER_BRIDGE_H_
#define COMPONENTS_IMAGE_FETCHER_IMAGE_FETCHER_BRIDGE_H_

#include <jni.h>

#include <string>

#include "base/android/scoped_java_ref.h"
#include "base/files/file_path.h"
#include "base/functional/callback.h"
#include "components/image_fetcher/core/request_metadata.h"
#include "ui/gfx/image/image.h"

using base::android::JavaParamRef;
using base::android::JavaRef;
using base::android::ScopedJavaGlobalRef;
using base::android::ScopedJavaLocalRef;
namespace image_fetcher {

// Native counterpart of ImageFetcherBridge.java.
class ImageFetcherBridge {
 public:
  // Not copyable or movable
  ImageFetcherBridge(const ImageFetcherBridge&) = delete;
  ImageFetcherBridge& operator=(const ImageFetcherBridge&) = delete;
  ImageFetcherBridge(ImageFetcherBridge&&) = delete;
  ImageFetcherBridge& operator=(ImageFetcherBridge&&) = delete;

  static ScopedJavaLocalRef<jstring> GetFilePath(
      JNIEnv* j_env,
      const JavaParamRef<jobject>& j_simple_factory_key,
      const JavaParamRef<jstring>& j_url);

  static void FetchImageData(JNIEnv* j_env,
                             const JavaParamRef<jobject>& j_simple_factory_key,
                             const jint j_image_fetcher_config,
                             const JavaParamRef<jstring>& j_url,
                             const JavaParamRef<jstring>& j_client_name,
                             const jint j_expiration_interval_mins,
                             const JavaParamRef<jobject>& j_callback);

  static void FetchImage(JNIEnv* j_env,
                         const JavaParamRef<jobject>& j_simple_factory_key,
                         const jint j_image_fetcher_config,
                         const JavaParamRef<jstring>& j_url,
                         const JavaParamRef<jstring>& j_client_name,
                         const jint j_frame_width,
                         const jint j_frame_height,
                         const jint j_expiration_interval_mins,
                         const JavaParamRef<jobject>& j_callback);

  static void ReportEvent(JNIEnv* j_env,
                          const JavaParamRef<jstring>& j_client_name,
                          const jint j_event_id);

  static void ReportCacheHitTime(JNIEnv* j_env,
                                 const JavaParamRef<jstring>& j_client_name,
                                 const jlong start_time_millis);

  static void ReportTotalFetchTimeFromNative(
      JNIEnv* j_env,
      const JavaParamRef<jstring>& j_client_name,
      const jlong start_time_millis);

 private:
  ImageFetcherBridge();
  ~ImageFetcherBridge();

  static ScopedJavaLocalRef<jobject> ConvertRequestMetadataToJava(
      JNIEnv* j_env,
      const RequestMetadata& request_metadata);

  static ScopedJavaLocalRef<jobject> CreateJavaImageDataFetchResult(
      JNIEnv* j_env,
      const JavaRef<jbyteArray>& j_image_data,
      const JavaRef<jobject>& j_request_metadata);

  static ScopedJavaLocalRef<jobject> CreateJavaImageFetchResult(
      JNIEnv* j_env,
      const JavaRef<jobject>& j_bitmap,
      const JavaRef<jobject>& j_request_metadata);

  static void OnImageDataFetched(ScopedJavaGlobalRef<jobject> callback,
                                 const std::string& image_data,
                                 const RequestMetadata& request_metadata);

  static void OnImageFetched(ScopedJavaGlobalRef<jobject> callback,
                             const gfx::Image& image,
                             const RequestMetadata& request_metadata);
};

}  // namespace image_fetcher

#endif  // COMPONENTS_IMAGE_FETCHER_IMAGE_FETCHER_BRIDGE_H_