// 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_CORE_BROWSER_FOUNDATIONS_AUTOFILL_DRIVER_ROUTER_H_ #define COMPONENTS_AUTOFILL_CORE_BROWSER_FOUNDATIONS_AUTOFILL_DRIVER_ROUTER_H_ #include #include #include #include #include "base/containers/flat_set.h" #include "base/containers/span.h" #include "base/functional/bind_internal.h" #include "base/functional/callback_forward.h" #include "base/task/sequenced_task_runner.h" #include "components/autofill/core/browser/field_types.h" #include "components/autofill/core/browser/foundations/autofill_driver.h" #include "components/autofill/core/browser/foundations/form_forest.h" #include "components/autofill/core/common/aliases.h" #include "components/autofill/core/common/form_data.h" #include "components/autofill/core/common/form_data_predictions.h" #include "components/autofill/core/common/form_field_data.h" #include "components/autofill/core/common/mojom/autofill_types.mojom-shared.h" #include "components/autofill/core/common/password_form_fill_data.h" #include "components/autofill/core/common/unique_ids.h" #include "mojo/public/cpp/bindings/pending_remote.h" #include "third_party/abseil-cpp/absl/container/flat_hash_map.h" #include "ui/gfx/geometry/rect.h" #include "url/origin.h" namespace autofill { namespace mojom { class AutofillVisibilityObserver; } // namespace mojom // AutofillDriverRouter routes events between AutofillDriver objects in order to // handle frame-transcending forms. // // A *frame-transcending* form is a form whose fields live in different frames. // For example, credit card forms often have the credit card number field in an // iframe hosted by a payment service provider. // // A frame-transcending form therefore consists of multiple *renderer forms*. // AutofillDriverRouter *flattens* these forms into a single *browser form*, // and maps all events concerning the renderer forms to that browser form, and // vice versa. // // That way, the collection of renderer forms appears as one ordinary form to // the browser. // // For example, consider the following pseudo HTML code: // // // // Forms can be actual

elements or synthetic forms: ,