// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef IOS_CHROME_BROWSER_FIND_IN_PAGE_MODEL_JAVA_SCRIPT_FIND_TAB_HELPER_H_
#define IOS_CHROME_BROWSER_FIND_IN_PAGE_MODEL_JAVA_SCRIPT_FIND_TAB_HELPER_H_
#include <Foundation/Foundation.h>
#include "base/scoped_observation.h"
#import "ios/chrome/browser/find_in_page/model/abstract_find_tab_helper.h"
#include "ios/web/public/web_state_observer.h"
#import "ios/web/public/web_state_user_data.h"
@class JavaScriptFindInPageController;
@class FindInPageModel;
@protocol FindInPageResponseDelegate;
// Adds support for the "Find in page" feature.
class JavaScriptFindTabHelper final
: public AbstractFindTabHelper,
public web::WebStateObserver,
public web::WebStateUserData<JavaScriptFindTabHelper> {
public:
JavaScriptFindTabHelper(const JavaScriptFindTabHelper&) = delete;
JavaScriptFindTabHelper& operator=(const JavaScriptFindTabHelper&) = delete;
~JavaScriptFindTabHelper() final;
// AbstractFindTabHelper implementation
void SetResponseDelegate(
id<FindInPageResponseDelegate> response_delegate) final;
void StartFinding(NSString* search_string) final;
void ContinueFinding(FindDirection direction) final;
void StopFinding() final;
FindInPageModel* GetFindResult() const final;
bool CurrentPageSupportsFindInPage() const final;
bool IsFindUIActive() const final;
void SetFindUIActive(bool active) final;
void PersistSearchTerm() final;
void RestoreSearchTerm() final;
private:
friend class web::WebStateUserData<JavaScriptFindTabHelper>;
// Private constructor used by CreateForWebState().
JavaScriptFindTabHelper(web::WebState* web_state);
// Create the JavaScriptFindInPageController for `web_state`. Only called
// if/when the WebState is realized.
void CreateFindInPageController(web::WebState* web_state);
// web::WebStateObserver.
void WebStateRealized(web::WebState* web_state) final;
void WebStateDestroyed(web::WebState* web_state) final;
void DidFinishNavigation(web::WebState* web_state,
web::NavigationContext* navigation_context) final;
// The ObjC find in page controller (nil if the WebState is not realized).
JavaScriptFindInPageController* controller_ = nil;
// The delegate to register with JavaScriptFindInPageController when it is
// created.
__weak id<FindInPageResponseDelegate> response_delegate_ = nil;
// Manage the registration of this instance as a WebStateObserver.
base::ScopedObservation<web::WebState, web::WebStateObserver> observation_{
this};
WEB_STATE_USER_DATA_KEY_DECL();
};
#endif // IOS_CHROME_BROWSER_FIND_IN_PAGE_MODEL_JAVA_SCRIPT_FIND_TAB_HELPER_H_