| // 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. |
| |
| #include "ui/accessibility/ax_tree_update.h" |
| |
| #include "base/strings/string_number_conversions.h" |
| #include "ui/accessibility/ax_enum_util.h" |
| #include "ui/accessibility/ax_tree_checks.h" |
| #include "ui/accessibility/ax_tree_data.h" |
| |
| namespace ui { |
| |
| AXTreeUpdate::AXTreeUpdate() = default; |
| |
| AXTreeUpdate::AXTreeUpdate(AXTreeUpdate&& other) = default; |
| |
| AXTreeUpdate& AXTreeUpdate::operator=(AXTreeUpdate&& other) = default; |
| |
| AXTreeUpdate::AXTreeUpdate(const ui::AXTreeUpdate& other) = default; |
| |
| AXTreeUpdate& AXTreeUpdate::operator=(const AXTreeUpdate& other) = default; |
| |
| AXTreeUpdate::~AXTreeUpdate() = default; |
| |
| std::string AXTreeUpdate::ToString(bool verbose) const { |
| std::string result; |
| |
| if (has_tree_data) { |
| result += "AXTreeUpdate tree data:" + tree_data.ToString() + "\n"; |
| } |
| |
| if (node_id_to_clear != kInvalidAXNodeID) { |
| result += "AXTreeUpdate: clear node " + |
| base::NumberToString(node_id_to_clear) + "\n"; |
| } |
| |
| if (root_id != kInvalidAXNodeID) { |
| result += "AXTreeUpdate: root id " + base::NumberToString(root_id) + "\n"; |
| } |
| |
| if (event_from != ax::mojom::EventFrom::kNone) |
| result += "event_from=" + std::string(ui::ToString(event_from)) + "\n"; |
| if (event_from_action != ax::mojom::Action::kNone) |
| result += |
| "event_from_action=" + std::string(ui::ToString(event_from_action)) + |
| "\n"; |
| |
| if (!event_intents.empty()) { |
| result += "event_intents=[\n"; |
| for (const auto& event_intent : event_intents) |
| result += " " + event_intent.ToString() + "\n"; |
| result += "]\n"; |
| } |
| |
| // The challenge here is that we want to indent the nodes being updated |
| // so that parent/child relationships are clear, but we don't have access |
| // to the rest of the tree for context, so we have to try to show the |
| // relative indentation of child nodes in this update relative to their |
| // parents. |
| std::map<AXNodeID, int> id_to_indentation; |
| for (const AXNodeData& node_data : nodes) { |
| int indent = id_to_indentation[node_data.id]; |
| result += std::string(2 * indent, ' '); |
| result += node_data.ToString(/*verbose*/ verbose) + "\n"; |
| for (AXNodeID child_id : node_data.child_ids) |
| id_to_indentation[child_id] = indent + 1; |
| } |
| |
| return result; |
| } |
| |
| size_t AXTreeUpdate::ByteSize() const { |
| size_t total_size = sizeof(AXTreeUpdate); |
| for (auto& node : nodes) { |
| total_size += node.ByteSize(); |
| } |
| total_size += event_intents.size() * sizeof(AXEventIntent); |
| |
| return total_size; |
| } |
| |
| void AXTreeUpdate::AccumulateSize( |
| AXNodeData::AXNodeDataSize& node_data_size) const { |
| for (const auto& node : nodes) { |
| node.AccumulateSize(node_data_size); |
| } |
| } |
| |
| } // namespace ui |