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// Copyright 2020 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 CONTENT_PUBLIC_BROWSER_AX_INSPECT_FACTORY_H_
#define CONTENT_PUBLIC_BROWSER_AX_INSPECT_FACTORY_H_
#include <memory>
#include "base/process/process_handle.h"
#include "content/common/content_export.h"
#include "ui/accessibility/platform/inspect/ax_event_recorder.h"
#include "ui/accessibility/platform/inspect/ax_tree_formatter.h"
namespace content {
// TODO: we shouldn't leak internal data types outside of the content module,
// event recorders can use native platform APIs and avoid dealing
// with BrowserAccessibilityManager, see crbug.com/1133330.
class BrowserAccessibilityManager;
// Accessibility tree formatters and event recorders factory.
class CONTENT_EXPORT AXInspectFactory {
public:
// Creates the appropriate tree formatter for the platform we are currently
// running on, since each platform has its own specific accessibility tree.
// For example, this would be MSAA/IAccessible2 tree on Windows, AT-SPI tree
// on Linux or NSAccessibility tree on macOS.
static std::unique_ptr<ui::AXTreeFormatter> CreatePlatformFormatter();
// Creates the appropriate event recorder for the platform we are currently
// running on.
static std::unique_ptr<ui::AXEventRecorder> CreatePlatformRecorder(
BrowserAccessibilityManager* manager = nullptr,
base::ProcessId pid = 0,
const ui::AXTreeSelector& selector = {});
// Creates the internal accessibility tree formatter, AKA the Blink tree
// formatter, which is used to dump the Blink accessibility tree to a string
static std::unique_ptr<ui::AXTreeFormatter> CreateBlinkFormatter();
// Inspect types for all platforms.
enum TypeConstant {
kAndroid,
kBlink,
kMac,
kLinux,
kWinIA2,
kWinUIA,
};
// Inspect type.
class CONTENT_EXPORT Type final {
public:
Type(TypeConstant type) : type_(type) {}
explicit operator std::string() const;
operator TypeConstant() const { return type_; }
private:
TypeConstant type_;
};
// Creates a tree formatter of a given inspect type if supported by platform.
static std::unique_ptr<ui::AXTreeFormatter> CreateFormatter(Type);
// Creates an event recorder of a given inspect type if supported by platform.
static std::unique_ptr<ui::AXEventRecorder> CreateRecorder(
Type,
BrowserAccessibilityManager* manager = nullptr,
base::ProcessId pid = 0,
const ui::AXTreeSelector& selector = {});
};
} // namespace content
#endif // CONTENT_PUBLIC_BROWSER_AX_INSPECT_FACTORY_H_
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