Offline Page download bridge

chrome/browser/android/offline_pages/downloads/offline_page_download_bridge.h

+// Copyright 2016 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 CHROME_BROWSER_ANDROID_OFFLINE_PAGES_DOWNLOADS_OFFLINE_PAGE_DOWNLOAD_BRIDGE_H_
+#define CHROME_BROWSER_ANDROID_OFFLINE_PAGES_DOWNLOADS_OFFLINE_PAGE_DOWNLOAD_BRIDGE_H_
+
+#include <stdint.h>
+
+#include "base/android/jni_android.h"
+#include "base/android/jni_weak_ref.h"
+#include "base/macros.h"
+#include "base/supports_user_data.h"
+#include "components/offline_pages/offline_page_item.h"
+#include "components/offline_pages/offline_page_model.h"
+
+namespace content {
+class BrowserContext;
+}
+
+namespace offline_pages {
+namespace android {
+
+/**
+ * Bridge between C++ and Java for exposing native implementation of offline
+ * pages model in managed code.
+ */
+class OfflinePageDownloadBridge {
+ public:
+  OfflinePageDownloadBridge(JNIEnv* env,
+                            const base::android::JavaParamRef<jobject>& obj,
+                            content::BrowserContext* browser_context);
+  ~OfflinePageDownloadBridge();
+
+  static bool Register(JNIEnv* env);
+
+  void Destroy(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
+
+  void GetAllItems(JNIEnv* env,
+                   const base::android::JavaParamRef<jobject>& obj,
+                   const base::android::JavaParamRef<jobject>& j_result_obj);
+
+  base::android::ScopedJavaLocalRef<jobject> GetItemByGuid(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj,
+      const base::android::JavaParamRef<jstring>& j_guid);
+
+  void OnOfflinePageDownloadBridgeLoaded();
+  void OnOfflinePageDownloadItemAdded(const OfflinePageItem& item);
+  void OnOfflinePageDownloadItemDeleted(const std::string& guid);
+  void OnOfflinePageDownloadItemUpdated(const OfflinePageItem& item);
+
+ private:
+  JavaObjectWeakGlobalRef weak_java_ref_;
+
+  DISALLOW_COPY_AND_ASSIGN(OfflinePageDownloadBridge);
+};
+
+}  // namespace android
+}  // namespace offline_pages
+
+#endif  // CHROME_BROWSER_ANDROID_OFFLINE_PAGES_DOWNLOADS_OFFLINE_PAGE_DOWNLOAD_BRIDGE_H_