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// Copyright 2015 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_ANDROID_CONTEXTUALSEARCH_CONTEXTUAL_SEARCH_MANAGER_H_
#define CHROME_BROWSER_ANDROID_CONTEXTUALSEARCH_CONTEXTUAL_SEARCH_MANAGER_H_
#include <jni.h>
#include <stddef.h>
#include "base/android/jni_android.h"
#include "base/memory/raw_ptr.h"
#include "base/task/cancelable_task_tracker.h"
#include "components/contextual_search/core/browser/contextual_search_delegate.h"
class Profile;
// Manages the native extraction and request logic for Contextual Search,
// and interacts with the Java ContextualSearchManager for UX.
// Most of the work is done by the associated |ContextualSearchDelegate|.
class ContextualSearchManager {
public:
// Constructs a native manager associated with the Java manager.
ContextualSearchManager(JNIEnv* env,
const base::android::JavaRef<jobject>& obj,
Profile* profile);
ContextualSearchManager(const ContextualSearchManager&) = delete;
ContextualSearchManager& operator=(const ContextualSearchManager&) = delete;
~ContextualSearchManager();
// Called by the Java ContextualSearchManager when it is being destroyed.
void Destroy(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
// Starts the request to get the search terms to use for the given selection,
// by accessing our server with the content of the page (from the given
// content view core object).
// Any outstanding server requests are canceled.
// When the server responds with the search term, the Java object is notified
// by calling OnSearchTermResolutionResponse().
void StartSearchTermResolutionRequest(
JNIEnv* env,
const base::android::JavaParamRef<jobject>& obj,
const base::android::JavaParamRef<jobject>& j_contextual_search_context,
const base::android::JavaParamRef<jobject>& j_base_web_contents);
// Gathers the surrounding text around the selection and saves it locally.
// Does not send a search term resolution request to the server.
void GatherSurroundingText(
JNIEnv* env,
const base::android::JavaParamRef<jobject>& obj,
const base::android::JavaParamRef<jobject>& j_contextual_search_context,
const base::android::JavaParamRef<jobject>& j_base_web_contents);
// Removes a search URL from history. |search_start_time_ms| represents the
// time at which |search_url| was committed.
void RemoveLastHistoryEntry(JNIEnv* env,
const base::android::JavaParamRef<jobject>& obj,
std::string& search_url,
jlong search_start_time_ms);
private:
void OnSearchTermResolutionResponse(
const ResolvedSearchTerm& resolved_search_term);
// Calls back to Java with notification when a sample of text surrounding the
// selection is available.
void OnTextSurroundingSelectionAvailable(
const std::string& encoding,
const std::u16string& surrounding_text,
size_t start_offset,
size_t end_offset);
// Our global reference to the Java ContextualSearchManager.
base::android::ScopedJavaGlobalRef<jobject> java_manager_;
// Used if we need to clear history.
base::CancelableTaskTracker history_task_tracker_;
raw_ptr<Profile> profile_;
// The delegate we're using the do the real work.
std::unique_ptr<ContextualSearchDelegate> delegate_;
};
#endif // CHROME_BROWSER_ANDROID_CONTEXTUALSEARCH_CONTEXTUAL_SEARCH_MANAGER_H_
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