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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_AUTOFILL_JAVA_SCRIPT_FEATURE_H_
#define COMPONENTS_AUTOFILL_IOS_BROWSER_AUTOFILL_JAVA_SCRIPT_FEATURE_H_
#import <Foundation/Foundation.h>
#import "base/functional/callback.h"
#import "base/no_destructor.h"
#import "base/values.h"
#import "components/autofill/core/common/unique_ids.h"
#import "ios/web/public/js_messaging/java_script_feature.h"
#import "ios/web/public/js_messaging/script_message.h"
namespace web {
class WebFrame;
} // namespace web
namespace autofill {
class AutofillRendererIDJavaScriptFeature;
// Communicates with the JavaScript file, autofill_controller.js, which contains
// form parsing and autofill functions.
class AutofillJavaScriptFeature : public web::JavaScriptFeature {
public:
// This feature holds no state, so only a single static instance is ever
// needed.
static AutofillJavaScriptFeature* GetInstance();
// Extracts forms from a web `frame`. Only forms with at least
// `required_fields_count` fields are extracted. `callback` is called
// with the JSON string of forms of a web page. `callback` cannot be nil.
void FetchForms(web::WebFrame* frame,
base::OnceCallback<void(NSString*)> callback);
// Fills `data` into the active form field in `frame`, then executes the
// `callback`. `callback` cannot be nil.
void FillActiveFormField(web::WebFrame* frame,
base::Value::Dict data,
base::OnceCallback<void(BOOL)> callback);
// Fills `data` into the field identified by `data['renderer_id']`,
// then executes callback. This is similar to `FillActiveFormField`, but does
// not require that the target element be the active element.
void FillSpecificFormField(web::WebFrame* frame,
base::Value::Dict data,
base::OnceCallback<void(BOOL)> callback);
// Fills a number of fields in the same named form for full-form Autofill.
// Applies Autofill CSS (i.e. yellow background) to filled elements.
// Only empty fields will be filled, except that field named
// Field identified by `force_fill_field_id` will always be filled even if
// non-empty. `force_fill_field_id` may be null. Fields must be contained in
// `frame`. `callback` is called after the forms are filled with `data`
// which must contain pairs of unique renderer ids of filled fields and
// corresponding filled values. `callback` cannot be nil.
void FillForm(web::WebFrame* frame,
base::Value::Dict data,
autofill::FieldRendererId force_fill_field_id,
base::OnceCallback<void(NSString*)> callback);
// Clear autofilled fields of the specified form and frame. Fields that are
// not currently autofilled are not modified. Field contents are cleared, and
// Autofill flag and styling are removed. 'change' events are sent for fields
// whose contents changed.
// `form_renderer_id` and `field_renderer_id` identify the field that
// initiated the clear action. `callback is called after the forms are filled
// with the JSON string containing a list of unique renderer ids of cleared
// fields. `callback` cannot be nil.
void ClearAutofilledFieldsForForm(
web::WebFrame* frame,
autofill::FormRendererId form_renderer_id,
autofill::FieldRendererId field_renderer_id,
base::OnceCallback<void(NSString*)> callback);
// Marks up the form with autofill field prediction data (diagnostic tool).
void FillPredictionData(web::WebFrame* frame, base::Value::Dict data);
// web::JavaScriptFeature:
std::optional<std::string> GetScriptMessageHandlerName() const override;
protected:
// web::JavaScriptFeature:
void ScriptMessageReceived(web::WebState* web_state,
const web::ScriptMessage& message) override;
private:
friend class base::NoDestructor<AutofillJavaScriptFeature>;
// TODO(crbug.com/359538514): Remove friend once isolated world for Autofill
// is launched.
friend class TestAutofillJavaScriptFeatureContainer;
AutofillJavaScriptFeature();
~AutofillJavaScriptFeature() override;
AutofillJavaScriptFeature(const AutofillJavaScriptFeature&) = delete;
AutofillJavaScriptFeature& operator=(const AutofillJavaScriptFeature&) =
delete;
// TODO(crbug.com/359538514): Remove test constructor once isolated world for
// Autofill is launched.
AutofillJavaScriptFeature(
AutofillRendererIDJavaScriptFeature* renderer_id_feature);
};
} // namespace autofill
#endif // COMPONENTS_AUTOFILL_IOS_BROWSER_AUTOFILL_JAVA_SCRIPT_FEATURE_H_
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