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// Copyright 2023 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_LANGUAGE_IOS_BROWSER_LANGUAGE_DETECTION_JAVA_SCRIPT_FEATURE_H_
#define COMPONENTS_LANGUAGE_IOS_BROWSER_LANGUAGE_DETECTION_JAVA_SCRIPT_FEATURE_H_
#import "base/no_destructor.h"
#import "ios/web/public/js_messaging/java_script_feature.h"
namespace language {
class LanguageDetectionJavaScriptFeature : public web::JavaScriptFeature {
public:
// Returns the shared LanguageDetectionJavaScriptFeature instance.
static LanguageDetectionJavaScriptFeature* GetInstance();
// Triggers the start of JS language detection within `frame`.
void StartLanguageDetection(web::WebFrame* frame);
private:
friend class base::NoDestructor<LanguageDetectionJavaScriptFeature>;
LanguageDetectionJavaScriptFeature();
~LanguageDetectionJavaScriptFeature() override;
LanguageDetectionJavaScriptFeature(
const LanguageDetectionJavaScriptFeature&) = delete;
LanguageDetectionJavaScriptFeature& operator=(
const LanguageDetectionJavaScriptFeature&) = delete;
// JavaScriptFeature:
void ScriptMessageReceived(web::WebState* web_state,
const web::ScriptMessage& script_message) override;
std::optional<std::string> GetScriptMessageHandlerName() const override;
};
} // namespace language
#endif // COMPONENTS_LANGUAGE_IOS_BROWSER_LANGUAGE_DETECTION_JAVA_SCRIPT_FEATURE_H_
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