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// 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 COMPONENTS_AUTOFILL_CONTENT_RENDERER_HTML_BASED_USERNAME_DETECTOR_H_
#define COMPONENTS_AUTOFILL_CONTENT_RENDERER_HTML_BASED_USERNAME_DETECTOR_H_
#include <map>
#include <vector>
#include "components/autofill/core/common/form_data.h"
#include "components/autofill/core/common/unique_ids.h"
#include "third_party/blink/public/web/web_form_control_element.h"
#include "third_party/blink/public/web/web_input_element.h"
namespace autofill {
// The detector's cache is a map from a |renderer_id| to the list of
// predictions for the given form (in the order of decreasing reliability).
using UsernameDetectorCache =
std::map<FormRendererId, std::vector<FieldRendererId>>;
// Classifier for getting username field by analyzing HTML attribute values.
// The algorithm looks for words that are likely to point to username field (ex.
// "username", "loginid" etc.), in the attribute values. When the first match is
// found, the currently analyzed field is saved in |username_element|, and the
// algorithm ends. By searching for words in order of their probability to be
// username words, it is sure that the first match will also be the best one.
// If detector's outcome for the given form is cached in
// |username_detector_cache|, then |username_element| is set based on the cached
// data. Otherwise, the detector will be run and the outcome will be saved to
// the cache. The function returns a reference to the vector of predictions,
// which is stored in the cache.
const std::vector<FieldRendererId>& GetPredictionsFieldBasedOnHtmlAttributes(
const FormData& form_data,
UsernameDetectorCache* username_detector_cache);
} // namespace autofill
#endif // COMPONENTS_AUTOFILL_CONTENT_RENDERER_HTML_BASED_USERNAME_DETECTOR_H_
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