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// 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.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_HANDWRITING_HANDWRITING_RECOGNITION_SERVICE_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_HANDWRITING_HANDWRITING_RECOGNITION_SERVICE_H_
#include "third_party/blink/public/mojom/handwriting/handwriting.mojom-blink.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise.h"
#include "third_party/blink/renderer/core/frame/navigator.h"
#include "third_party/blink/renderer/platform/heap/visitor.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_remote.h"
#include "third_party/blink/renderer/platform/supplementable.h"
namespace blink {
class ExecutionContext;
class HandwritingModelConstraint;
class HandwritingRecognizer;
class HandwritingRecognizerQueryResult;
class ScriptState;
class HandwritingRecognitionService final
: public GarbageCollected<HandwritingRecognitionService>,
public Supplement<Navigator> {
public:
static const char kSupplementName[];
explicit HandwritingRecognitionService(Navigator&);
static HandwritingRecognitionService& From(Navigator&);
// IDL Interface:
static ScriptPromise<HandwritingRecognizer> createHandwritingRecognizer(
ScriptState*,
Navigator&,
const HandwritingModelConstraint*,
ExceptionState&);
static ScriptPromise<IDLNullable<HandwritingRecognizerQueryResult>>
queryHandwritingRecognizer(ScriptState*,
Navigator&,
const HandwritingModelConstraint*,
ExceptionState&);
void Trace(Visitor* visitor) const override;
private:
// Bind the Mojo connection to browser process if needed.
// Returns false when the execution context is not valid (e.g., the frame is
// detached) and an exception will be thrown.
// Otherwise returns true.
bool BootstrapMojoConnectionIfNeeded(ScriptState*, ExceptionState&);
ScriptPromise<HandwritingRecognizer> CreateHandwritingRecognizer(
ScriptState*,
const HandwritingModelConstraint*,
ExceptionState&);
ScriptPromise<IDLNullable<HandwritingRecognizerQueryResult>>
QueryHandwritingRecognizer(ScriptState*,
const HandwritingModelConstraint* constraint,
ExceptionState&);
HeapMojoRemote<handwriting::mojom::blink::HandwritingRecognitionService>
remote_service_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_HANDWRITING_HANDWRITING_RECOGNITION_SERVICE_H_
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