74 lines
2.0 KiB
C++
74 lines
2.0 KiB
C++
#ifndef CLIPBOARDURL_H
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#define CLIPBOARDURL_H
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#include <QMimeData>
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#include <QRegularExpression>
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#include <QUrl>
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#ifndef QT_NO_DEBUG
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#include <QDebug>
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#endif
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namespace ClipboardUrl {
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inline QUrl parseText (const QString &text) {
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QString urlText = text.trimmed();
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#ifndef QT_NO_DEBUG
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qDebug() << "[clipboard] raw text:" << text
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<< "UTF-8 hex:" << text.toUtf8().toHex();
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#endif
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if (urlText.size() >= 2) {
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const QChar first = urlText.front();
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const QChar last = urlText.back();
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if ((first == '\'' && last == '\'') || (first == '"' && last == '"')
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|| (first == '<' && last == '>'))
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urlText = urlText.mid (1, urlText.size() - 2).trimmed();
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}
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static const QRegularExpression markdownLink (
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QStringLiteral ("\\A\\[[^\\r\\n]*\\]\\((https?://[^\\r\\n]+)\\)\\z"),
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QRegularExpression::CaseInsensitiveOption);
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const auto match = markdownLink.match (urlText);
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if (match.hasMatch())
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urlText = match.captured (1);
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const QUrl url = QUrl::fromUserInput (urlText);
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#ifndef QT_NO_DEBUG
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qDebug() << "[clipboard] normalized text:" << urlText
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<< "parsed URL:" << url << "valid:" << url.isValid()
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<< "scheme:" << url.scheme() << "host:" << url.host()
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<< "parse error:" << url.errorString();
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#endif
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if (!url.isValid() || url.scheme().isEmpty() || url.host().isEmpty())
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return QUrl();
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return url;
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}
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inline QUrl fromMimeData (const QMimeData *mimeData) {
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if (mimeData == nullptr) {
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#ifndef QT_NO_DEBUG
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qDebug() << "[clipboard] MIME data unavailable";
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#endif
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return QUrl();
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}
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const auto urls = mimeData->urls();
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#ifndef QT_NO_DEBUG
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qDebug() << "[clipboard] MIME formats:" << mimeData->formats()
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<< "URL entries:" << urls;
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#endif
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if (urls.size() == 1) {
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const QUrl url = urls.first();
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if (url.isValid() && !url.scheme().isEmpty() && !url.host().isEmpty()) {
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#ifndef QT_NO_DEBUG
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qDebug() << "[clipboard] using MIME URL:" << url;
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#endif
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return url;
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}
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}
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return parseText (mimeData->text());
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}
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} // namespace ClipboardUrl
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#endif // CLIPBOARDURL_H
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