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/****************************************************************************
**
** Copyright (C) 2016 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 "cpphoverhandler.h"
#include "cppelementevaluator.h"
#include <coreplugin/helpmanager.h>
#include <texteditor/texteditor.h>
#include <utils/textutils.h>
#include <utils/executeondestruction.h>
#include <QTextCursor>
#include <QUrl>
using namespace Core;
using namespace TextEditor;
namespace CppTools {
QString CppHoverHandler::tooltipTextForHelpItem(const HelpItem &helpItem)
{
// If Qt is built with a namespace, we still show the tip without it, as
// it is in the docs and for consistency with the doc extraction mechanism.
const HelpItem::Category category = helpItem.category();
const QString &contents = helpItem.extractContent(false);
if (!contents.isEmpty()) {
if (category == HelpItem::ClassOrNamespace)
return helpItem.helpId() + contents;
else
return contents;
} else if (category == HelpItem::Typedef ||
category == HelpItem::Enum ||
category == HelpItem::ClassOrNamespace) {
// This approach is a bit limited since it cannot be used for functions
// because the help id doesn't really help in that case.
QString prefix;
if (category == HelpItem::Typedef)
prefix = QLatin1String("typedef ");
else if (category == HelpItem::Enum)
prefix = QLatin1String("enum ");
return prefix + helpItem.helpId();
}
return QString();
}
void CppHoverHandler::identifyMatch(TextEditorWidget *editorWidget, int pos, ReportPriority report)
{
Utils::ExecuteOnDestruction reportPriority([this, report](){ report(priority()); });
QTextCursor tc(editorWidget->document());
tc.setPosition(pos);
CppElementEvaluator evaluator(editorWidget);
evaluator.setTextCursor(tc);
evaluator.execute();
if (evaluator.hasDiagnosis()) {
setToolTip(evaluator.diagnosis());
setPriority(Priority_Diagnostic);
} else if (evaluator.identifiedCppElement()) {
const QSharedPointer<CppElement> &cppElement = evaluator.cppElement();
if (priority() != Priority_Diagnostic) {
setToolTip(cppElement->tooltip);
setPriority(cppElement->tooltip.isEmpty() ? Priority_None : Priority_Tooltip);
}
QStringList candidates = cppElement->helpIdCandidates;
candidates.removeDuplicates();
foreach (const QString &helpId, candidates) {
if (helpId.isEmpty())
continue;
const QMap<QString, QUrl> helpLinks = HelpManager::linksForIdentifier(helpId);
if (!helpLinks.isEmpty()) {
setLastHelpItemIdentified(HelpItem(helpId,
cppElement->helpMark,
cppElement->helpCategory,
helpLinks));
break;
}
}
}
}
void CppHoverHandler::decorateToolTip()
{
if (Qt::mightBeRichText(toolTip()))
setToolTip(toolTip().toHtmlEscaped());
if (priority() == Priority_Diagnostic)
return;
const HelpItem &help = lastHelpItemIdentified();
if (help.isValid()) {
const QString text = tooltipTextForHelpItem(help);
if (!text.isEmpty())
setToolTip(text);
}
}
} // namespace CppTools
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