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hunspellinputmethod_p.cpp 7.29 KiB
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/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the Qt Virtual Keyboard module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 or (at your option) any later version
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** approved by the KDE Free Qt Foundation. The licenses are as published by
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** the Free Software Foundation and appearing in the file LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "hunspellinputmethod_p.h"
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#include "inputcontext.h"
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#include <hunspell/hunspell.h>
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#include <QStringList>
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#include <QDir>
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#include "virtualkeyboarddebug.h"
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#include <QTextCodec>
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#include <QtCore/QLibraryInfo>
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namespace QtVirtualKeyboard {
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/*!
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    \class QtVirtualKeyboard::HunspellInputMethodPrivate
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    \internal
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*/
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HunspellInputMethodPrivate::HunspellInputMethodPrivate(HunspellInputMethod *q_ptr) :
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    AbstractInputMethodPrivate(),
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    q_ptr(q_ptr),
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    hunspellWorker(new HunspellWorker()),
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    locale(),
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    word(),
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    wordCandidates(),
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    activeWordIndex(-1),
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    wordCompletionPoint(2),
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    ignoreUpdate(false),
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    autoSpaceAllowed(false)
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{
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    if (hunspellWorker)
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        hunspellWorker->start();
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}
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HunspellInputMethodPrivate::~HunspellInputMethodPrivate()
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{
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}
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bool HunspellInputMethodPrivate::createHunspell(const QString &locale)
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{
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    if (!hunspellWorker)
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        return false;
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    if (this->locale != locale) {
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hunspellWorker->removeAllTasks(); QString hunspellDataPath(QString::fromLatin1(qgetenv("QT_VIRTUALKEYBOARD_HUNSPELL_DATA_PATH").constData())); const QString pathListSep( #if defined(Q_OS_WIN32) QStringLiteral(";") #else QStringLiteral(":") #endif ); QStringList searchPaths(hunspellDataPath.split(pathListSep, QString::SkipEmptyParts)); const QStringList defaultPaths = QStringList() << QDir(QLibraryInfo::location(QLibraryInfo::DataPath) + QStringLiteral("/qtvirtualkeyboard/hunspell")).absolutePath() #if !defined(Q_OS_WIN32) << QStringLiteral("/usr/share/hunspell") << QStringLiteral("/usr/share/myspell/dicts") #endif ; for (const QString &defaultPath : defaultPaths) { if (!searchPaths.contains(defaultPath)) searchPaths.append(defaultPath); } QSharedPointer<HunspellLoadDictionaryTask> loadDictionaryTask(new HunspellLoadDictionaryTask(locale, searchPaths)); hunspellWorker->addTask(loadDictionaryTask); this->locale = locale; } return true; } void HunspellInputMethodPrivate::reset() { if (clearSuggestions()) { Q_Q(HunspellInputMethod); emit q->selectionListChanged(SelectionListModel::WordCandidateList); emit q->selectionListActiveItemChanged(SelectionListModel::WordCandidateList, activeWordIndex); } word.clear(); autoSpaceAllowed = false; } bool HunspellInputMethodPrivate::updateSuggestions() { bool wordCandidateListChanged = false; if (!word.isEmpty()) { if (hunspellWorker) hunspellWorker->removeAllTasksExcept<HunspellLoadDictionaryTask>(); if (wordCandidates.isEmpty()) { wordCandidates.append(word); activeWordIndex = 0; wordCandidateListChanged = true; } else if (wordCandidates.at(0) != word) { wordCandidates.replace(0, word); activeWordIndex = 0; wordCandidateListChanged = true; } if (word.length() >= wordCompletionPoint) { if (hunspellWorker) { QSharedPointer<HunspellWordList> wordList(new HunspellWordList()); QSharedPointer<HunspellBuildSuggestionsTask> buildSuggestionsTask(new HunspellBuildSuggestionsTask()); buildSuggestionsTask->word = word; buildSuggestionsTask->wordList = wordList; buildSuggestionsTask->autoCorrect = false; hunspellWorker->addTask(buildSuggestionsTask); QSharedPointer<HunspellUpdateSuggestionsTask> updateSuggestionsTask(new HunspellUpdateSuggestionsTask()); updateSuggestionsTask->wordList = wordList; Q_Q(HunspellInputMethod); q->connect(updateSuggestionsTask.data(), SIGNAL(updateSuggestions(QStringList, int)), SLOT(updateSuggestions(QStringList, int))); hunspellWorker->addTask(updateSuggestionsTask); } } else if (wordCandidates.length() > 1) { wordCandidates.clear();
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wordCandidates.append(word); activeWordIndex = 0; wordCandidateListChanged = true; } } else { wordCandidateListChanged = clearSuggestions(); } return wordCandidateListChanged; } bool HunspellInputMethodPrivate::clearSuggestions() { if (hunspellWorker) hunspellWorker->removeAllTasksExcept<HunspellLoadDictionaryTask>(); if (wordCandidates.isEmpty()) return false; wordCandidates.clear(); activeWordIndex = -1; return true; } bool HunspellInputMethodPrivate::hasSuggestions() const { return !wordCandidates.isEmpty(); } bool HunspellInputMethodPrivate::isAutoSpaceAllowed() const { Q_Q(const HunspellInputMethod); if (!autoSpaceAllowed) return false; if (q->inputEngine()->inputMode() != InputEngine::Latin) return false; InputContext *ic = q->inputContext(); if (!ic) return false; Qt::InputMethodHints inputMethodHints = ic->inputMethodHints(); return !inputMethodHints.testFlag(Qt::ImhUrlCharactersOnly) && !inputMethodHints.testFlag(Qt::ImhEmailCharactersOnly); } bool HunspellInputMethodPrivate::isValidInputChar(const QChar &c) const { if (c.isLetterOrNumber()) return true; if (isJoiner(c)) return true; return false; } bool HunspellInputMethodPrivate::isJoiner(const QChar &c) const { if (c.isPunct() || c.isSymbol()) { Q_Q(const HunspellInputMethod); InputContext *ic = q->inputContext(); if (ic) { Qt::InputMethodHints inputMethodHints = ic->inputMethodHints(); if (inputMethodHints.testFlag(Qt::ImhUrlCharactersOnly) || inputMethodHints.testFlag(Qt::ImhEmailCharactersOnly)) return QString(QStringLiteral(":/?#[]@!$&'()*+,;=-_.%")).contains(c); } ushort unicode = c.unicode(); if (unicode == Qt::Key_Apostrophe || unicode == Qt::Key_Minus) return true; } return false; } } // namespace QtVirtualKeyboard