Upstream ios/web_view source code.

ios/web_view/internal/translate/criwv_translate_client.h

+// Copyright 2014 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 IOS_WEB_VIEW_INTERNAL_TRANSLATE_CRIWV_TRANSLATE_CLIENT_H_
+#define IOS_WEB_VIEW_INTERNAL_TRANSLATE_CRIWV_TRANSLATE_CLIENT_H_
+
+#include <memory>
+#include <string>
+
+#import "base/mac/scoped_nsobject.h"
+#include "components/translate/core/browser/translate_client.h"
+#include "components/translate/core/browser/translate_step.h"
+#include "components/translate/core/common/translate_errors.h"
+#import "components/translate/ios/browser/ios_translate_driver.h"
+#include "ios/web/public/web_state/web_state_observer.h"
+#import "ios/web/public/web_state/web_state_user_data.h"
+
+@protocol CRIWVTranslateDelegate;
+class PrefService;
+
+namespace translate {
+class TranslateAcceptLanguages;
+class TranslatePrefs;
+class TranslateManager;
+}  // namespace translate
+
+namespace web {
+class WebState;
+}
+
+namespace ios_web_view {
+
+class CRIWVTranslateClient
+    : public translate::TranslateClient,
+      public web::WebStateObserver,
+      public web::WebStateUserData<CRIWVTranslateClient> {
+ public:
+  // Sets the delegate passed by the embedder.
+  // |delegate| is assumed to outlive this CRIWVTranslateClient.
+  void set_translate_delegate(id<CRIWVTranslateDelegate> delegate) {
+    delegate_ = delegate;
+  }
+
+ private:
+  friend class web::WebStateUserData<CRIWVTranslateClient>;
+
+  // The lifetime of CRIWVTranslateClient is managed by WebStateUserData.
+  explicit CRIWVTranslateClient(web::WebState* web_state);
+  ~CRIWVTranslateClient() override;
+
+  // TranslateClient implementation.
+  translate::TranslateDriver* GetTranslateDriver() override;
+  PrefService* GetPrefs() override;
+  std::unique_ptr<translate::TranslatePrefs> GetTranslatePrefs() override;
+  translate::TranslateAcceptLanguages* GetTranslateAcceptLanguages() override;
+  int GetInfobarIconID() const override;
+  std::unique_ptr<infobars::InfoBar> CreateInfoBar(
+      std::unique_ptr<translate::TranslateInfoBarDelegate> delegate)
+      const override;
+  void ShowTranslateUI(translate::TranslateStep step,
+                       const std::string& source_language,
+                       const std::string& target_language,
+                       translate::TranslateErrors::Type error_type,
+                       bool triggered_from_menu) override;
+  bool IsTranslatableURL(const GURL& url) override;
+  void ShowReportLanguageDetectionErrorUI(const GURL& report_url) override;
+
+  // web::WebStateObserver implementation.
+  void WebStateDestroyed() override;
+
+  std::unique_ptr<translate::TranslateManager> translate_manager_;
+  translate::IOSTranslateDriver translate_driver_;
+
+  // Delegate provided by the embedder.
+  id<CRIWVTranslateDelegate> delegate_;  // Weak.
+
+  DISALLOW_COPY_AND_ASSIGN(CRIWVTranslateClient);
+};
+
+}  // namespace ios_web_view
+
+#endif  // IOS_WEB_VIEW_INTERNAL_TRANSLATE_CRIWV_TRANSLATE_CLIENT_H_