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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/user_education/common/anchor_element_provider.h"
#include <utility>
#include "base/notreached.h"
#include "ui/base/interaction/element_identifier.h"
namespace user_education {
AnchorElementProviderCommon::AnchorElementProviderCommon() = default;
AnchorElementProviderCommon::AnchorElementProviderCommon(
ui::ElementIdentifier anchor_element_id)
: anchor_element_id_(anchor_element_id) {}
AnchorElementProviderCommon::AnchorElementProviderCommon(
AnchorElementProviderCommon&& other) noexcept
: anchor_element_id_(
std::exchange(other.anchor_element_id_, ui::ElementIdentifier())),
in_any_context_(std::exchange(other.in_any_context_, false)),
anchor_element_filter_(std::move(other.anchor_element_filter_)) {}
AnchorElementProviderCommon& AnchorElementProviderCommon::operator=(
AnchorElementProviderCommon&& other) noexcept {
if (this != &other) {
anchor_element_id_ =
std::exchange(other.anchor_element_id_, ui::ElementIdentifier());
in_any_context_ = std::exchange(other.in_any_context_, false);
anchor_element_filter_ = std::move(other.anchor_element_filter_);
}
return *this;
}
AnchorElementProviderCommon::~AnchorElementProviderCommon() = default;
ui::TrackedElement* AnchorElementProviderCommon::GetAnchorElement(
ui::ElementContext context,
std::optional<int> index) const {
CHECK(anchor_element_id_)
<< "Cannot call GetAnchorElement on default-constructed object.";
CHECK(!index.has_value())
<< "Cannot specify an index for a default anchor element provider.";
auto* const element_tracker = ui::ElementTracker::GetElementTracker();
if (anchor_element_filter_) {
return anchor_element_filter_.Run(
in_any_context_ ? element_tracker->GetAllMatchingElementsInAnyContext(
anchor_element_id_)
: element_tracker->GetAllMatchingElements(
anchor_element_id_, context));
} else {
return in_any_context_
? element_tracker->GetElementInAnyContext(anchor_element_id_)
: element_tracker->GetFirstMatchingElement(anchor_element_id_,
context);
}
}
int AnchorElementProviderCommon::GetNextValidIndex(int) const {
NOTREACHED() << "Should never call on default anchor element provider.";
}
} // namespace user_education
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