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/****************************************************************************
**
** Copyright (C) 2018 Andre Hartmann <aha_1980@gmx.de>
** 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 "javascriptfilter.h"
#include <QClipboard>
#include <QGuiApplication>
#include <QScriptEngine>
#include <QTimer>
namespace Core {
namespace Internal {
enum JavaScriptAction
{
ResetEngine = QVariant::UserType + 1,
AbortEngine
};
JavaScriptFilter::JavaScriptFilter()
{
setId("JavaScriptFilter");
setDisplayName(tr("Evaluate JavaScript"));
setIncludedByDefault(false);
setShortcutString("=");
}
JavaScriptFilter::~JavaScriptFilter()
{
}
void JavaScriptFilter::prepareSearch(const QString &entry)
{
Q_UNUSED(entry);
if (!m_engine)
setupEngine();
}
QList<LocatorFilterEntry> JavaScriptFilter::matchesFor(
QFutureInterface<Core::LocatorFilterEntry> &future, const QString &entry)
{
Q_UNUSED(future);
QList<LocatorFilterEntry> entries;
if (entry.trimmed().isEmpty()) {
entries.append({this, tr("Reset Engine"), QVariant(ResetEngine, nullptr)});
} else {
bool aborted = false;
QTimer::singleShot(1000, this, [this, &aborted]() {
m_engine->abortEvaluation();
aborted = true;
});
const QString result = m_engine->evaluate(entry).toString();
if (aborted) {
const QString message = entry + " = " + tr("Engine aborted after timeout.");
entries.append({this, message, QVariant(AbortEngine, nullptr)});
} else {
const QString expression = entry + " = " + result;
entries.append({this, expression, QVariant()});
entries.append({this, tr("Copy to clipboard: %1").arg(result), result});
entries.append({this, tr("Copy to clipboard: %1").arg(expression), expression});
}
}
return entries;
}
void JavaScriptFilter::accept(Core::LocatorFilterEntry selection, QString *newText,
int *selectionStart, int *selectionLength) const
{
Q_UNUSED(newText);
Q_UNUSED(selectionStart);
Q_UNUSED(selectionLength);
if (selection.internalData.isNull())
return;
if (selection.internalData.userType() == ResetEngine) {
m_engine.reset();
return;
}
QClipboard *clipboard = QGuiApplication::clipboard();
clipboard->setText(selection.internalData.toString());
}
void JavaScriptFilter::refresh(QFutureInterface<void> &future)
{
Q_UNUSED(future);
// Nothing to refresh
}
void JavaScriptFilter::setupEngine()
{
m_engine.reset(new QScriptEngine);
m_engine->evaluate(
"function abs(x) { return Math.abs(x); }\n"
"function acos(x) { return Math.acos(x); }\n"
"function asin(x) { return Math.asin(x); }\n"
"function atan(x) { return Math.atan(x); }\n"
"function atan2(x, y) { return Math.atan2(x, y); }\n"
"function bin(x) { return '0b' + x.toString(2); }\n"
"function ceil(x) { return Math.ceil(x); }\n"
"function cos(x) { return Math.cos(x); }\n"
"function exp(x) { return Math.exp(x); }\n"
"function e() { return Math.E; }\n"
"function floor(x) { return Math.floor(x); }\n"
"function hex(x) { return '0x' + x.toString(16); }\n"
"function log(x) { return Math.log(x); }\n"
"function max(x, y) { return Math.max(x, y); }\n"
"function min(x, y) { return Math.min(x, y); }\n"
"function oct(x) { return '0' + x.toString(8); }\n"
"function pi() { return Math.PI; }\n"
"function pow(x, y) { return Math.pow(x, y); }\n"
"function random() { return Math.random(); }\n"
"function round(x) { return Math.round(x); }\n"
"function sin(x) { return Math.sin(x); }\n"
"function sqrt(x) { return Math.sqrt(x); }\n"
"function tan(x) { return Math.tan(x); }\n");
}
} // namespace Internal
} // namespace Core
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