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// Copyright 2025 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_AI_PROOFREADER_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_AI_PROOFREADER_H_
#include "base/functional/callback_helpers.h"
#include "base/task/sequenced_task_runner.h"
#include "third_party/blink/public/mojom/ai/ai_proofreader.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/bindings/modules/v8/v8_proofread_result.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_proofreader_create_options.h"
#include "third_party/blink/renderer/core/execution_context/execution_context_lifecycle_observer.h"
#include "third_party/blink/renderer/modules/ai/ai_metrics.h"
#include "third_party/blink/renderer/modules/ai/ai_utils.h"
#include "third_party/blink/renderer/modules/ai/availability.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_remote.h"
namespace blink {
using CanCreateCallback =
base::OnceCallback<void(mojom::blink::ModelAvailabilityCheckResult)>;
// The class that represents a proofreader object.
class Proofreader final : public ScriptWrappable,
public ExecutionContextClient {
DEFINE_WRAPPERTYPEINFO();
public:
Proofreader(ScriptState* script_state,
scoped_refptr<base::SequencedTaskRunner> task_runner,
mojo::PendingRemote<mojom::blink::AIProofreader> pending_remote,
ProofreaderCreateOptions* options);
void Trace(Visitor* visitor) const override;
static ScriptPromise<V8Availability> availability(
ScriptState* script_state,
ProofreaderCreateCoreOptions* options,
ExceptionState& exception_state);
static ScriptPromise<Proofreader> create(ScriptState* script_state,
ProofreaderCreateOptions* options,
ExceptionState& exception_state);
// proofreader.idl:
ScriptPromise<ProofreadResult> proofread(ScriptState* script_state,
const String& proofread_task,
ExceptionState& exception_state);
void destroy(ScriptState* script_state, ExceptionState& exception_state);
bool includeCorrectionTypes() const {
return options_->includeCorrectionTypes();
}
bool includeCorrectionExplanations() const {
return options_->includeCorrectionExplanations();
}
std::optional<Vector<String>> expectedInputLanguages() const {
if (options_->hasExpectedInputLanguages()) {
return options_->expectedInputLanguages();
}
return std::nullopt;
}
String correctionExplanationLanguage() const {
return options_->getCorrectionExplanationLanguageOr(g_empty_string);
}
private:
static bool ValidateAndCanonicalizeOptionLanguages(
v8::Isolate* isolate,
ProofreaderCreateCoreOptions* options);
// Callback to resolve the `proofread()` promise with the full corrected text.
void OnProofreadComplete(ScriptPromiseResolver<ProofreadResult>* resolver,
const String& corrected_input);
HeapMojoRemote<mojom::blink::AIProofreader> remote_;
Member<ProofreaderCreateOptions> options_;
scoped_refptr<base::SequencedTaskRunner> task_runner_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_AI_PROOFREADER_H_
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