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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_ACCESSIBILITY_INSPECTOR_ACCESSIBILITY_AGENT_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_ACCESSIBILITY_INSPECTOR_ACCESSIBILITY_AGENT_H_
#include "base/macros.h"
#include "third_party/blink/renderer/core/accessibility/ax_context.h"
#include "third_party/blink/renderer/core/inspector/inspector_base_agent.h"
#include "third_party/blink/renderer/core/inspector/protocol/Accessibility.h"
#include "third_party/blink/renderer/modules/modules_export.h"
namespace blink {
class AXObject;
class AXObjectCacheImpl;
class InspectorDOMAgent;
class InspectedFrames;
class LocalFrame;
using protocol::Accessibility::AXNode;
using protocol::Accessibility::AXNodeId;
class MODULES_EXPORT InspectorAccessibilityAgent
: public InspectorBaseAgent<protocol::Accessibility::Metainfo> {
public:
InspectorAccessibilityAgent(InspectedFrames*, InspectorDOMAgent*);
static void ProvideTo(LocalFrame* frame);
void CreateAXContext();
// Base agent methods.
void Trace(Visitor*) const override;
void Restore() override;
// Protocol methods.
protocol::Response enable() override;
protocol::Response disable() override;
protocol::Response getPartialAXTree(
protocol::Maybe<int> dom_node_id,
protocol::Maybe<int> backend_node_id,
protocol::Maybe<String> object_id,
protocol::Maybe<bool> fetch_relatives,
std::unique_ptr<protocol::Array<protocol::Accessibility::AXNode>>*)
override;
protocol::Response getFullAXTree(
std::unique_ptr<protocol::Array<protocol::Accessibility::AXNode>>*)
override;
private:
// Unconditionally enables the agent, even if |enabled_.Get()==true|.
// For idempotence, call enable().
void EnableAndReset();
std::unique_ptr<AXNode> BuildObjectForIgnoredNode(
Node* dom_node,
AXObject*,
bool fetch_relatives,
std::unique_ptr<protocol::Array<AXNode>>& nodes,
AXObjectCacheImpl&) const;
void PopulateDOMNodeAncestors(Node& inspected_dom_node,
AXNode&,
std::unique_ptr<protocol::Array<AXNode>>& nodes,
AXObjectCacheImpl&) const;
std::unique_ptr<AXNode> BuildProtocolAXObject(
AXObject&,
AXObject* inspected_ax_object,
bool fetch_relatives,
std::unique_ptr<protocol::Array<AXNode>>& nodes,
AXObjectCacheImpl&) const;
void FillCoreProperties(AXObject&,
AXObject* inspected_ax_object,
bool fetch_relatives,
AXNode&,
std::unique_ptr<protocol::Array<AXNode>>& nodes,
AXObjectCacheImpl&) const;
void AddAncestors(AXObject& first_ancestor,
AXObject* inspected_ax_object,
std::unique_ptr<protocol::Array<AXNode>>& nodes,
AXObjectCacheImpl&) const;
void PopulateRelatives(AXObject&,
AXObject* inspected_ax_object,
AXNode&,
std::unique_ptr<protocol::Array<AXNode>>& nodes,
AXObjectCacheImpl&) const;
void AddSiblingsOfIgnored(
std::unique_ptr<protocol::Array<AXNodeId>>& child_ids,
AXObject& parent_ax_object,
AXObject* inspected_ax_object,
std::unique_ptr<protocol::Array<AXNode>>& nodes,
AXObjectCacheImpl&) const;
void addChild(std::unique_ptr<protocol::Array<AXNodeId>>& child_ids,
AXObject& child_ax_object,
AXObject* inspected_ax_object,
std::unique_ptr<protocol::Array<AXNode>>& nodes,
AXObjectCacheImpl&) const;
void AddChildren(AXObject&,
AXObject* inspected_ax_object,
std::unique_ptr<protocol::Array<AXNodeId>>& child_ids,
std::unique_ptr<protocol::Array<AXNode>>& nodes,
AXObjectCacheImpl&) const;
Member<InspectedFrames> inspected_frames_;
Member<InspectorDOMAgent> dom_agent_;
InspectorAgentState::Boolean enabled_;
std::unique_ptr<AXContext> context_;
DISALLOW_COPY_AND_ASSIGN(InspectorAccessibilityAgent);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_ACCESSIBILITY_INSPECTOR_ACCESSIBILITY_AGENT_H_
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