third_party/blink/renderer/modules/shapedetection/text_detector.h

// Copyright 2017 The Chromium Authors
// 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_SHAPEDETECTION_TEXT_DETECTOR_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_SHAPEDETECTION_TEXT_DETECTOR_H_

#include "services/shape_detection/public/mojom/textdetection.mojom-blink.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise_resolver.h"
#include "third_party/blink/renderer/modules/canvas/canvas2d/canvas_rendering_context_2d.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/modules/shapedetection/shape_detector.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_hash_set.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_remote.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_wrapper_mode.h"

namespace blink {

class ExecutionContext;

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

 public:
  static TextDetector* Create(ExecutionContext*);

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

  void Trace(Visitor*) const override;

 private:
  ScriptPromise DoDetect(ScriptState*, SkBitmap, ExceptionState&) override;
  void OnDetectText(
      ScriptPromiseResolver*,
      Vector<shape_detection::mojom::blink::TextDetectionResultPtr>);
  void OnTextServiceConnectionError();

  HeapMojoRemote<shape_detection::mojom::blink::TextDetection> text_service_;

  HeapHashSet<Member<ScriptPromiseResolver>> text_service_requests_;
};

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_SHAPEDETECTION_TEXT_DETECTOR_H_