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// Copyright 2021 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_AUTOFILL_IOS_BROWSER_SUGGESTION_CONTROLLER_JAVA_SCRIPT_FEATURE_H_
#define COMPONENTS_AUTOFILL_IOS_BROWSER_SUGGESTION_CONTROLLER_JAVA_SCRIPT_FEATURE_H_
#import <string>
#import "base/functional/callback.h"
#import "base/no_destructor.h"
#import "ios/web/public/js_messaging/java_script_feature.h"
namespace web {
class WebFrame;
} // namespace web
namespace autofill {
class SuggestionControllerJavaScriptFeature : public web::JavaScriptFeature {
public:
// This feature holds no state, so only a single static instance is ever
// needed.
static SuggestionControllerJavaScriptFeature* GetInstance();
// Focuses the next focusable element in tab order inside |frame|. No action
// if there is no such element.
void SelectNextElementInFrame(web::WebFrame* frame);
// Focuses the next focusable element in tab order after the element specified
// by |form_name| and |field_name| in tab order inside |frame|. No action if
// there is no such element.
void SelectNextElementInFrame(web::WebFrame* frame,
const std::string& form_name,
const std::string& field_name);
// Focuses the previous focusable element in tab order inside |frame|. No
// action if there is no such element.
void SelectPreviousElementInFrame(web::WebFrame* frame);
// Focuses the previous focusable element in tab order from the element
// specified by |form_name| and |field_name| in tab order inside |frame|. No
// action if there is no such element.
void SelectPreviousElementInFrame(web::WebFrame* frame,
const std::string& form_name,
const std::string& field_name);
// Checks if |frame| contains a next and previous element.
// |completionHandler| is called with 2 bools, the first indicating if a
// previous element was found, and the second indicating if a next element was
// found. |completion_handler| cannot be nil.
void FetchPreviousAndNextElementsPresenceInFrame(
web::WebFrame* frame,
base::OnceCallback<void(bool, bool)> completion_handler);
// Checks if |frame| contains a next and previous element starting from the
// field specified by |form_name| and |field_name|.
// |completionHandler| is called with 2 BOOLs, the first indicating if a
// previous element was found, and the second indicating if a next element was
// found. |completion_handler| cannot be nil.
void FetchPreviousAndNextElementsPresenceInFrame(
web::WebFrame* frame,
const std::string& form_name,
const std::string& field_name,
base::OnceCallback<void(bool, bool)> completion_handler);
private:
friend class base::NoDestructor<SuggestionControllerJavaScriptFeature>;
SuggestionControllerJavaScriptFeature();
~SuggestionControllerJavaScriptFeature() override;
SuggestionControllerJavaScriptFeature(
const SuggestionControllerJavaScriptFeature&) = delete;
SuggestionControllerJavaScriptFeature& operator=(
const SuggestionControllerJavaScriptFeature&) = delete;
};
} // namespace autofill
#endif // COMPONENTS_AUTOFILL_IOS_BROWSER_SUGGESTION_CONTROLLER_JAVA_SCRIPT_FEATURE_H_
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