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// Copyright 2013 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 COMPONENTS_AUTOFILL_CONTENT_RENDERER_FORM_CACHE_H_
#define COMPONENTS_AUTOFILL_CONTENT_RENDERER_FORM_CACHE_H_
#include <map>
#include <set>
#include <vector>
#include "base/strings/string16.h"
namespace blink {
class WebDocument;
class WebFormElement;
class WebFrame;
class WebInputElement;
class WebSelectElement;
}
namespace autofill {
struct FormData;
struct FormDataPredictions;
// Manages the forms in a RenderView.
class FormCache {
public:
FormCache();
~FormCache();
// Scans the DOM in |frame| extracting and storing forms.
// Fills |forms| with extracted forms.
void ExtractForms(const blink::WebFrame& frame,
std::vector<FormData>* forms);
// Scans the DOM in |frame| extracting and storing forms.
// Fills |forms| with extracted forms and |web_form_elements| with associated
// web form elements. Returns true if there are unextracted forms due to
// |minimum_required_fields| limit, else false.
bool ExtractFormsAndFormElements(
const blink::WebFrame& frame,
size_t minimum_required_fields,
std::vector<FormData>* forms,
std::vector<blink::WebFormElement>* web_form_elements);
// Resets the forms for the specified |frame|.
void ResetFrame(const blink::WebFrame& frame);
// Clears the values of all input elements in the form that contains
// |element|. Returns false if the form is not found.
bool ClearFormWithElement(const blink::WebInputElement& element);
// For each field in the |form|, sets the field's placeholder text to the
// field's overall predicted type. Also sets the title to include the field's
// heuristic type, server type, and signature; as well as the form's signature
// and the experiment id for the server predictions.
bool ShowPredictions(const FormDataPredictions& form);
private:
// The cached web frames.
std::set<blink::WebDocument> web_documents_;
// The cached initial values for <select> elements.
std::map<const blink::WebSelectElement, base::string16>
initial_select_values_;
// The cached initial values for checkable <input> elements.
std::map<const blink::WebInputElement, bool> initial_checked_state_;
DISALLOW_COPY_AND_ASSIGN(FormCache);
};
} // namespace autofill
#endif // COMPONENTS_AUTOFILL_CONTENT_RENDERER_FORM_CACHE_H_
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