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/****************************************************************************
**
** Copyright (C) 2019 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#include "highlighter.h"
#include "definitiondownloader.h"
#include "highlightersettings.h"
#include "textdocumentlayout.h"
#include "texteditorsettings.h"
#include <coreplugin/icore.h>
#include <coreplugin/messagemanager.h>
#include <utils/mimetypes/mimedatabase.h>
#include <Format>
#include <Repository>
#include <SyntaxHighlighter>
#include <QDir>
#include <QMetaEnum>
using namespace TextEditor;
KSyntaxHighlighting::Repository *highlightRepository()
{
static KSyntaxHighlighting::Repository *repository = nullptr;
if (!repository) {
repository = new KSyntaxHighlighting::Repository();
repository->addCustomSearchPath(TextEditorSettings::highlighterSettings().definitionFilesPath());
QDir dir(Core::ICore::resourcePath() + QLatin1String("/generic-highlighter/syntax"));
if (dir.exists() && dir.cdUp())
repository->addCustomSearchPath(dir.path());
}
return repository;
}
TextStyle categoryForTextStyle(int style)
{
switch (style) {
case KSyntaxHighlighting::Theme::Normal: return C_TEXT;
case KSyntaxHighlighting::Theme::Keyword: return C_KEYWORD;
case KSyntaxHighlighting::Theme::Function: return C_FUNCTION;
case KSyntaxHighlighting::Theme::Variable: return C_LOCAL;
case KSyntaxHighlighting::Theme::ControlFlow: return C_KEYWORD;
case KSyntaxHighlighting::Theme::Operator: return C_OPERATOR;
case KSyntaxHighlighting::Theme::BuiltIn: return C_PRIMITIVE_TYPE;
case KSyntaxHighlighting::Theme::Extension: return C_GLOBAL;
case KSyntaxHighlighting::Theme::Preprocessor: return C_PREPROCESSOR;
case KSyntaxHighlighting::Theme::Attribute: return C_LOCAL;
case KSyntaxHighlighting::Theme::Char: return C_STRING;
case KSyntaxHighlighting::Theme::SpecialChar: return C_STRING;
case KSyntaxHighlighting::Theme::String: return C_STRING;
case KSyntaxHighlighting::Theme::VerbatimString: return C_STRING;
case KSyntaxHighlighting::Theme::SpecialString: return C_STRING;
case KSyntaxHighlighting::Theme::Import: return C_PREPROCESSOR;
case KSyntaxHighlighting::Theme::DataType: return C_TYPE;
case KSyntaxHighlighting::Theme::DecVal: return C_NUMBER;
case KSyntaxHighlighting::Theme::BaseN: return C_NUMBER;
case KSyntaxHighlighting::Theme::Float: return C_NUMBER;
case KSyntaxHighlighting::Theme::Constant: return C_KEYWORD;
case KSyntaxHighlighting::Theme::Comment: return C_COMMENT;
case KSyntaxHighlighting::Theme::Documentation: return C_DOXYGEN_COMMENT;
case KSyntaxHighlighting::Theme::Annotation: return C_DOXYGEN_TAG;
case KSyntaxHighlighting::Theme::CommentVar: return C_DOXYGEN_TAG;
case KSyntaxHighlighting::Theme::RegionMarker: return C_PREPROCESSOR;
case KSyntaxHighlighting::Theme::Information: return C_WARNING;
case KSyntaxHighlighting::Theme::Warning: return C_WARNING;
case KSyntaxHighlighting::Theme::Alert: return C_ERROR;
case KSyntaxHighlighting::Theme::Error: return C_ERROR;
case KSyntaxHighlighting::Theme::Others: return C_TEXT;
}
return C_TEXT;
}
Highlighter::Highlighter()
{
setTextFormatCategories(QMetaEnum::fromType<KSyntaxHighlighting::Theme::TextStyle>().keyCount(),
&categoryForTextStyle);
}
Highlighter::Definition Highlighter::definitionForDocument(const TextDocument *document)
{
const Utils::MimeType mimeType = Utils::mimeTypeForName(document->mimeType());
Definition definition;
if (mimeType.isValid())
definition = Highlighter::definitionForMimeType(mimeType.name());
if (!definition.isValid())
definition = Highlighter::definitionForFileName(document->filePath().fileName());
return definition;
}
Highlighter::Definition Highlighter::definitionForMimeType(const QString &mimeType)
{
return highlightRepository()->definitionForMimeType(mimeType);
}
Highlighter::Definition Highlighter::definitionForFileName(const QString &fileName)
{
return highlightRepository()->definitionForFileName(fileName);
}
Highlighter::Definitions Highlighter::definitionsForDocument(const TextDocument *document)
{
const Utils::MimeType mimeType = Utils::mimeTypeForName(document->mimeType());
Definitions definitions;
if (mimeType.isValid())
definitions = Highlighter::definitionsForMimeType(mimeType.name());
if (definitions.isEmpty())
definitions = Highlighter::definitionsForFileName(document->filePath().fileName());
return definitions;
}
Highlighter::Definitions Highlighter::definitionsForMimeType(const QString &mimeType)
{
return highlightRepository()->definitionsForMimeType(mimeType).toList();
}
Highlighter::Definitions Highlighter::definitionsForFileName(const QString &fileName)
{
return highlightRepository()->definitionsForFileName(fileName).toList();
}
void Highlighter::addCustomHighlighterPath(const Utils::FileName &path)
{
highlightRepository()->addCustomSearchPath(path.toString());
}
void Highlighter::updateDefinitions(std::function<void()> callback) {
auto downloader =
new KSyntaxHighlighting::DefinitionDownloader(highlightRepository());
connect(downloader, &KSyntaxHighlighting::DefinitionDownloader::done,
[downloader, callback]() {
Core::MessageManager::write(tr("Highlighter updates: done"),
Core::MessageManager::ModeSwitch);
downloader->deleteLater();
if (callback)
callback();
});
connect(downloader,
&KSyntaxHighlighting::DefinitionDownloader::informationMessage,
[](const QString &message) {
Core::MessageManager::write(tr("Highlighter updates:") + ' ' +
message,
Core::MessageManager::ModeSwitch);
});
downloader->start();
}
void Highlighter::handleShutdown()
{
delete highlightRepository();
}
void Highlighter::highlightBlock(const QString &text)
{
if (!definition().isValid())
return;
QTextBlock block = currentBlock();
KSyntaxHighlighting::State state = TextDocumentLayout::userData(block)->syntaxState();
state = highlightLine(text, state);
block = block.next();
if (block.isValid())
TextDocumentLayout::userData(block)->setSyntaxState(state);
}
void Highlighter::applyFormat(int offset, int length, const KSyntaxHighlighting::Format &format)
{
setFormat(offset, length, formatForCategory(format.textStyle()));
}
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