LanguageTool Grammar Checker implementation

Signed-off-by: Mert Tumer <mert.tumer@collabora.com>
Change-Id: I275cbea668afc5beb5147370119631df8b6a2d46
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/135178
Tested-by: Jenkins
Reviewed-by: Christian Lohmaier <lohmaier+LibreOffice@googlemail.com>

1 files changed, 91 insertions, 0 deletions

diff --git a/lingucomponent/source/spellcheck/languagetool/languagetoolimp.hxx b/lingucomponent/source/spellcheck/languagetool/languagetoolimp.hxx
new file mode 100644
index 000000000000..e0dadfecab68
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+++ b/lingucomponent/source/spellcheck/languagetool/languagetoolimp.hxx
@@ -0,0 +1,91 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#pragma once
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/lang/XServiceDisplayName.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/XServiceName.hpp>
+#include <com/sun/star/linguistic2/XProofreader.hpp>
+#include <com/sun/star/linguistic2/ProofreadingResult.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/beans/PropertyValues.hpp>
+#include <linguistic/misc.hxx>
+#include <string_view>
+#include <o3tl/lru_map.hxx>
+#include <tools/long.hxx>
+
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::beans;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::linguistic2;
+
+// Magical numbers
+#define MAX_CACHE_SIZE 10
+#define MAX_SUGGESTIONS_SIZE 10
+#define PROOFREADING_ERROR 2
+#define CURL_TIMEOUT 10L
+
+enum class HTTP_METHOD
+{
+    HTTP_GET,
+    HTTP_POST
+};
+
+class LanguageToolGrammarChecker
+    : public cppu::WeakImplHelper<XProofreader, XInitialization, XServiceInfo, XServiceDisplayName>
+{
+    Sequence<Locale> m_aSuppLocales;
+    o3tl::lru_map<OUString, Sequence<SingleProofreadingError>> mCachedResults;
+    LanguageToolGrammarChecker(const LanguageToolGrammarChecker&) = delete;
+    LanguageToolGrammarChecker& operator=(const LanguageToolGrammarChecker&) = delete;
+    static void parseProofreadingJSONResponse(ProofreadingResult& rResult,
+                                              std::string_view aJSONBody);
+    static std::string makeHttpRequest(std::string_view aURL, HTTP_METHOD method,
+                                       const OString& aPostData, tools::Long& nStatusCode);
+
+public:
+    LanguageToolGrammarChecker();
+    virtual ~LanguageToolGrammarChecker() override;
+
+    // XSupportedLocales
+    virtual Sequence<Locale> SAL_CALL getLocales() override;
+    virtual sal_Bool SAL_CALL hasLocale(const Locale& rLocale) override;
+
+    // XProofReader
+    virtual sal_Bool SAL_CALL isSpellChecker() override;
+    virtual ProofreadingResult SAL_CALL doProofreading(
+        const OUString& aDocumentIdentifier, const OUString& aText, const Locale& aLocale,
+        sal_Int32 nStartOfSentencePosition, sal_Int32 nSuggestedBehindEndOfSentencePosition,
+        const Sequence<PropertyValue>& aProperties) override;
+
+    virtual void SAL_CALL ignoreRule(const OUString& aRuleIdentifier,
+                                     const Locale& aLocale) override;
+    virtual void SAL_CALL resetIgnoreRules() override;
+
+    // XServiceDisplayName
+    virtual OUString SAL_CALL getServiceDisplayName(const Locale& rLocale) override;
+
+    // XInitialization
+    virtual void SAL_CALL initialize(const Sequence<Any>& rArguments) override;
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService(const OUString& rServiceName) override;
+    virtual Sequence<OUString> SAL_CALL getSupportedServiceNames() override;
+};
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