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// 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_HISTORY_CLUSTERS_HISTORY_CLUSTERS_BRIDGE_H_
#define CHROME_BROWSER_HISTORY_CLUSTERS_HISTORY_CLUSTERS_BRIDGE_H_
#include "base/memory/raw_ptr.h"
#include "base/supports_user_data.h"
#include "chrome/browser/profiles/profile.h"
#include "components/history_clusters/core/history_clusters_service.h"
#include "components/history_clusters/core/history_clusters_types.h"
#include "components/history_clusters/core/query_clusters_state.h"
using base::android::JavaParamRef;
using base::android::JavaRef;
using base::android::ScopedJavaGlobalRef;
namespace history_clusters {
// Native JNI bridge that provides access to HistoryClusters data. This bridge
// is instantiated lazily via GetForProfile and is owned by the associated
// HistoryClustersService via UserData.
class HistoryClustersBridge : public base::SupportsUserData::Data {
public:
HistoryClustersBridge(JNIEnv* env,
HistoryClustersService* history_clusters_service);
// Start a new query for history clusters, fetching the first page of results
// and calling back to j_callback when done.
void QueryClusters(JNIEnv* env,
const JavaRef<jobject>& j_this,
const JavaRef<jstring>& j_query,
const JavaRef<jobject>& j_callback);
// Continue the current query for history clusters, fetching the next page of
// results and calling back to j_callback when done.
void LoadMoreClusters(JNIEnv* env,
const JavaRef<jobject>& j_this,
const JavaRef<jstring>& j_query,
const JavaRef<jobject>& j_callback);
// Destroy the bridge.
void Destroy(JNIEnv* j_env);
base::android::ScopedJavaGlobalRef<jobject> java_ref() { return java_ref_; }
HistoryClustersBridge(const HistoryClustersBridge&) = delete;
HistoryClustersBridge& operator=(const HistoryClustersBridge&) = delete;
~HistoryClustersBridge() override;
private:
void ClustersQueryDone(JNIEnv* env,
const JavaRef<jobject>& j_this,
const JavaRef<jobject>& j_callback,
const std::string& query,
std::vector<history::Cluster> clusters,
bool can_load_more,
bool is_continuation);
base::android::ScopedJavaGlobalRef<jobject> java_ref_;
raw_ptr<HistoryClustersService> history_clusters_service_;
base::CancelableTaskTracker query_task_tracker_;
std::unique_ptr<QueryClustersState> query_clusters_state_;
base::WeakPtrFactory<HistoryClustersBridge> weak_ptr_factory_{this};
};
} // namespace history_clusters
#endif // CHROME_BROWSER_HISTORY_CLUSTERS_HISTORY_CLUSTERS_BRIDGE_H_
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