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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/accessibility/ax_dummy_tree_manager.h"
#include "ui/accessibility/ax_node.h"
#include "ui/accessibility/ax_tree_data.h"
#include "ui/accessibility/ax_tree_manager_map.h"
namespace ui {
AXDummyTreeManager::AXDummyTreeManager() = default;
AXDummyTreeManager::AXDummyTreeManager(std::unique_ptr<AXTree> tree)
: AXTreeManager(std::move(tree)) {}
AXDummyTreeManager::AXDummyTreeManager(AXDummyTreeManager&& manager)
: AXTreeManager(std::move(manager.ax_tree_)) {
if (ax_tree_) {
GetMap().RemoveTreeManager(GetTreeID());
GetMap().AddTreeManager(GetTreeID(), this);
}
}
AXDummyTreeManager& AXDummyTreeManager::operator=(
AXDummyTreeManager&& manager) {
if (this == &manager)
return *this;
if (manager.ax_tree_)
GetMap().RemoveTreeManager(manager.GetTreeID());
// std::move(nullptr) == nullptr, so no need to check if `manager.tree_` is
// assigned.
SetTree(std::move(manager.ax_tree_));
return *this;
}
AXDummyTreeManager::~AXDummyTreeManager() = default;
void AXDummyTreeManager::DestroyTree() {
if (!ax_tree_)
return;
GetMap().RemoveTreeManager(GetTreeID());
ax_tree_.reset();
}
AXTree* AXDummyTreeManager::GetTree() const {
DCHECK(ax_tree_) << "Did you forget to call SetTree?";
return ax_tree_.get();
}
void AXDummyTreeManager::SetTree(std::unique_ptr<AXTree> tree) {
if (ax_tree_)
GetMap().RemoveTreeManager(GetTreeID());
ax_tree_ = std::move(tree);
ax_tree_id_ = GetTreeID();
if (ax_tree_)
GetMap().AddTreeManager(GetTreeID(), this);
}
AXNode* AXDummyTreeManager::GetNodeFromTree(const AXTreeID& tree_id,
const AXNodeID node_id) const {
return (ax_tree_ && GetTreeID() == tree_id) ? ax_tree_->GetFromId(node_id)
: nullptr;
}
AXNode* AXDummyTreeManager::GetParentNodeFromParentTreeAsAXNode() const {
AXTreeID parent_tree_id = GetParentTreeID();
AXDummyTreeManager* parent_manager =
static_cast<AXDummyTreeManager*>(AXTreeManager::FromID(parent_tree_id));
if (!parent_manager)
return nullptr;
std::set<AXNodeID> host_node_ids =
parent_manager->GetTree()->GetNodeIdsForChildTreeId(GetTreeID());
for (AXNodeID host_node_id : host_node_ids) {
AXNode* parent_node =
parent_manager->GetNodeFromTree(parent_tree_id, host_node_id);
if (parent_node)
return parent_node;
}
return nullptr;
}
} // namespace ui
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