third_party/WebKit/Source/modules/shapedetection/TextDetector.h

// Copyright 2017 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 TextDetector_h
#define TextDetector_h

#include "bindings/core/v8/ScriptPromise.h"
#include "bindings/core/v8/ScriptPromiseResolver.h"
#include "modules/ModulesExport.h"
#include "modules/canvas2d/CanvasRenderingContext2D.h"
#include "modules/shapedetection/ShapeDetector.h"
#include "platform/bindings/ScriptWrappable.h"
#include "services/shape_detection/public/interfaces/textdetection.mojom-blink.h"

namespace blink {

class ExecutionContext;

class MODULES_EXPORT TextDetector final : public ShapeDetector,
                                          public ScriptWrappable {
  DEFINE_WRAPPERTYPEINFO();

 public:
  static TextDetector* Create(ExecutionContext*);

  DECLARE_VIRTUAL_TRACE();

 private:
  explicit TextDetector(ExecutionContext*);
  ~TextDetector() override = default;

  ScriptPromise DoDetect(ScriptPromiseResolver*,
                         skia::mojom::blink::BitmapPtr) override;
  void OnDetectText(
      ScriptPromiseResolver*,
      Vector<shape_detection::mojom::blink::TextDetectionResultPtr>);
  void OnTextServiceConnectionError();

  shape_detection::mojom::blink::TextDetectionPtr text_service_;

  HeapHashSet<Member<ScriptPromiseResolver>> text_service_requests_;
};

}  // namespace blink

#endif  // TextDetector_h