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neochat/src/utils.h
2025-03-22 17:10:33 +01:00

91 lines
4.0 KiB
C++

// SPDX-FileCopyrightText: 2023 James Graham <james.h.graham@protonmail.com>
// SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
#pragma once
#include <QColor>
#include <QGuiApplication>
#include <QPalette>
#include <QQmlEngine>
#include <QQuickItem>
#include <QRegularExpression>
// #include "enums/powerlevel.h"
using namespace Qt::StringLiterals;
class QmlUtils : public QObject
{
Q_OBJECT
QML_ELEMENT
QML_SINGLETON
public:
static QmlUtils *create(QQmlEngine *, QJSEngine *)
{
QQmlEngine::setObjectOwnership(&instance(), QQmlEngine::CppOwnership);
return &instance();
}
static QmlUtils &instance()
{
static QmlUtils _instance;
return _instance;
}
Q_INVOKABLE bool isEmoji(const QString &text);
Q_INVOKABLE bool isValidJson(const QByteArray &json);
Q_INVOKABLE QString escapeString(const QString &string);
Q_INVOKABLE QColor getUserColor(qreal hueF);
Q_INVOKABLE QQuickItem *focusedWindowItem();
/**
* @brief Invokable version of PowerLevel::nameForLevel which also calls PowerLevel::levelForValue.
*/
// Q_INVOKABLE QString nameForPowerLevelValue(int value);
private:
QmlUtils() = default;
};
namespace Utils
{
/**
* @brief Get a color for a user from a hueF value.
*
* The lightness of the color will be modified depending on the current palette in
* order to maintain contrast.
*/
inline QColor getUserColor(qreal hueF)
{
const auto lightness = static_cast<QGuiApplication *>(QGuiApplication::instance())->palette().color(QPalette::Active, QPalette::Window).lightnessF();
// https://github.com/quotient-im/libQuotient/wiki/User-color-coding-standard-draft-proposal
return QColor::fromHslF(hueF, 1, -0.7 * lightness + 0.9, 1);
}
bool isEmoji(const QString &text);
}
namespace TextRegex
{
static const QRegularExpression endTagType{u"[> /]"_s};
static const QRegularExpression endAttributeType{u"[> ]"_s};
static const QRegularExpression attributeData{u"['\"](.*?)['\"]"_s};
static const QRegularExpression removeReply{u"> <.*?>.*?\\n\\n"_s, QRegularExpression::DotMatchesEverythingOption};
static const QRegularExpression removeRichReply{u"<mx-reply>.*?</mx-reply>"_s, QRegularExpression::DotMatchesEverythingOption};
static const QRegularExpression codePill{u"<pre><code[^>]*>(.*?)</code></pre>"_s, QRegularExpression::DotMatchesEverythingOption};
static const QRegularExpression userPill{u"(<a href=\"https://matrix.to/#/@.*?:.*?\">.*?</a>)"_s, QRegularExpression::DotMatchesEverythingOption};
static const QRegularExpression blockQuote{u"<blockquote>\n?(?:<p>)?(.*?)(?:</p>)?\n?</blockquote>"_s, QRegularExpression::DotMatchesEverythingOption};
static const QRegularExpression strikethrough{u"<del>(.*?)</del>"_s, QRegularExpression::DotMatchesEverythingOption};
static const QRegularExpression mxcImage{uR"AAA(<img(.*?)src="mxc:\/\/(.*?)\/(.*?)"(.*?)>)AAA"_s};
static const QRegularExpression plainUrl(
uR"(<a.*?<\/a>(*SKIP)(*F)|\b((www\.(?!\.)(?!(\w|\.|-)+@)|(https?|ftp):(//)?\w|(magnet|matrix):)(&(?![lg]t;)|[^&\s<>'"])+(&(?![lg]t;)|[^?&!,.\s<>'"\]):])))"_s,
QRegularExpression::CaseInsensitiveOption | QRegularExpression::UseUnicodePropertiesOption);
static const QRegularExpression url(uR"(\b((www\.(?!\.)(?!(\w|\.|-)+@)|https?:(//)?\w)(&(?![lg]t;)|[^&\s<>'"])+(&(?![lg]t;)|[^&!,.\s<>'"\]):])))"_s,
QRegularExpression::CaseInsensitiveOption | QRegularExpression::UseUnicodePropertiesOption);
static const QRegularExpression emailAddress(uR"(<a.*?<\/a>(*SKIP)(*F)|\b(mailto:)?((\w|\.|-)+@(\w|\.|-)+\.\w+\b))"_s,
QRegularExpression::CaseInsensitiveOption | QRegularExpression::UseUnicodePropertiesOption);
static const QRegularExpression mxId(uR"((?<=^|[][[:space:](){}`'";])([!#@][-a-z0-9_=#/.]{1,252}:\w(?:\w|\.|-)*\.\w+(?::\d{1,5})?))"_s,
QRegularExpression::CaseInsensitiveOption | QRegularExpression::UseUnicodePropertiesOption);
}