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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** 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 Digia. For licensing terms and
** conditions see http://www.qt.io/licensing. For further information
** use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "cpphoverhandler.h"
#include "cppeditorconstants.h"
#include "cppelementevaluator.h"
#include <coreplugin/helpmanager.h>
#include <texteditor/basetexteditor.h>
#include <utils/qtcassert.h>
#include <QTextCursor>
#include <QUrl>
using namespace CppEditor::Internal;
using namespace Core;
CppHoverHandler::CppHoverHandler(QObject *parent) : BaseHoverHandler(parent)
{}
CppHoverHandler::~CppHoverHandler()
{}
bool CppHoverHandler::acceptEditor(IEditor *editor)
{
return editor->document()->id() == CppEditor::Constants::CPPEDITOR_ID;
}
void CppHoverHandler::identifyMatch(TextEditor::ITextEditor *editor, int pos)
{
using namespace TextEditor;
BaseTextEditorWidget *textEditor = qobject_cast<BaseTextEditorWidget *>(editor->widget());
QTC_ASSERT(textEditor, return);
if (!textEditor->extraSelectionTooltip(pos).isEmpty()) {
setToolTip(textEditor->extraSelectionTooltip(pos));
} else {
QTextCursor tc(textEditor->document());
tc.setPosition(pos);
CppElementEvaluator evaluator(textEditor);
evaluator.setTextCursor(tc);
evaluator.execute();
if (evaluator.hasDiagnosis()) {
setToolTip(evaluator.diagnosis());
setIsDiagnosticTooltip(true);
}
if (evaluator.identifiedCppElement()) {
const QSharedPointer<CppElement> &cppElement = evaluator.cppElement();
if (!isDiagnosticTooltip())
setToolTip(cppElement->tooltip);
QStringList candidates = cppElement->helpIdCandidates;
candidates.removeDuplicates();
foreach (const QString &helpId, candidates) {
if (helpId.isEmpty())
continue;
const QMap<QString, QUrl> helpLinks = Core::HelpManager::linksForIdentifier(helpId);
if (!helpLinks.isEmpty()) {
setLastHelpItemIdentified(TextEditor::HelpItem(helpId,
cppElement->helpMark,
cppElement->helpCategory,
helpLinks));
break;
}
}
}
}
}
void CppHoverHandler::decorateToolTip()
{
if (Qt::mightBeRichText(toolTip()))
setToolTip(Qt::escape(toolTip()));
if (isDiagnosticTooltip())
return;
const TextEditor::HelpItem &help = lastHelpItemIdentified();
if (help.isValid()) {
// 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 TextEditor::HelpItem::Category category = help.category();
const QString &contents = help.extractContent(false);
if (!contents.isEmpty()) {
if (category == TextEditor::HelpItem::ClassOrNamespace)
setToolTip(help.helpId() + contents);
else
setToolTip(contents);
} else if (category == TextEditor::HelpItem::Typedef ||
category == TextEditor::HelpItem::Enum ||
category == TextEditor::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 == TextEditor::HelpItem::Typedef)
prefix = QLatin1String("typedef ");
else if (category == TextEditor::HelpItem::Enum)
prefix = QLatin1String("enum ");
setToolTip(prefix + help.helpId());
}
addF1ToToolTip();
}
}
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