/src/uisupport/clickable.cpp
C++ | 128 lines | 83 code | 16 blank | 29 comment | 22 complexity | 887286a0a98a4f495d4101523f787560 MD5 | raw file
- /***************************************************************************
- * Copyright (C) 2005-2020 by the Quassel Project *
- * devel@quassel-irc.org *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) version 3. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
- ***************************************************************************/
- #include "clickable.h"
- #include <QDesktopServices>
- #include <QModelIndex>
- #include <QUrl>
- #include "buffermodel.h"
- #include "client.h"
- void Clickable::activate(NetworkId networkId, const QString& text) const
- {
- if (!isValid())
- return;
- QString str = text.mid(start(), length());
- switch (type()) {
- case Clickable::Url:
- if (!str.contains("://"))
- str = "http://" + str;
- QDesktopServices::openUrl(QUrl::fromEncoded(str.toUtf8(), QUrl::TolerantMode));
- break;
- case Clickable::Channel:
- Client::bufferModel()->switchToOrJoinBuffer(networkId, str);
- break;
- default:
- break;
- }
- }
- // NOTE: This method is not threadsafe and not reentrant!
- // (RegExps are not constant while matching, and they are static here for efficiency)
- ClickableList ClickableList::fromString(const QString& str)
- {
- // For matching URLs
- static QString scheme(R"((?:(?:mailto:|(?:[+.-]?\w)+://)|www(?=\.\S+\.)))");
- static QString authority(R"((?:(?:[,.;@:]?[-\w]+)+\.?|\[[0-9a-f:.]+\])(?::\d+)?)");
- static QString urlChars("(?:[,.;:]*[\\w~@/?&=+$()!%#*-])");
- static QString urlEnd("(?:>|[,.;:\"]*\\s|\\b|$)"); // NOLINT(modernize-raw-string-literal)
- static QRegExp regExp[] = {
- // URL
- // QRegExp(QString("((?:https?://|s?ftp://|irc://|mailto:|www\\.)%1+|%1+\\.[a-z]{2,4}(?:?=/%1+|\\b))%2").arg(urlChars, urlEnd)),
- QRegExp(QString("\\b(%1%2(?:/%3*)?)%4").arg(scheme, authority, urlChars, urlEnd), Qt::CaseInsensitive),
- // Channel name
- // We don't match for channel names starting with + or &, because that gives us a lot of false positives.
- QRegExp(R"(((?:#|![A-Z0-9]{5})[^,:\s]+(?::[^,:\s]+)?)\b)", Qt::CaseInsensitive)
- // TODO: Nicks, we'll need a filtering for only matching known nicknames further down if we do this
- };
- static const int regExpCount = 2; // number of regexps in the array above
- qint16 matches[] = {0, 0, 0};
- qint16 matchEnd[] = {0, 0, 0};
- ClickableList result;
- // QString str = data(ChatLineModel::DisplayRole).toString();
- qint16 idx = 0;
- qint16 minidx;
- int type = -1;
- do {
- type = -1;
- minidx = str.length();
- for (int i = 0; i < regExpCount; i++) {
- if (matches[i] < 0 || matchEnd[i] > str.length())
- continue;
- if (idx >= matchEnd[i]) {
- matches[i] = regExp[i].indexIn(str, qMax(matchEnd[i], idx));
- if (matches[i] >= 0)
- matchEnd[i] = matches[i] + regExp[i].cap(1).length();
- }
- if (matches[i] >= 0 && matches[i] < minidx) {
- minidx = matches[i];
- type = i;
- }
- }
- if (type >= 0) {
- idx = matchEnd[type];
- QString match = str.mid(matches[type], matchEnd[type] - matches[type]);
- if (type == Clickable::Url && str.at(idx - 1) == ')') { // special case: closing paren only matches if we had an open one
- if (!match.contains('(')) {
- matchEnd[type]--;
- match.chop(1);
- }
- }
- if (type == Clickable::Channel) {
- // don't make clickable if it could be a #number
- if (QRegExp("^#\\d+$").exactMatch(match))
- continue;
- }
- result.emplace_back((Clickable::Type)type, matches[type], matchEnd[type] - matches[type]);
- }
- } while (type >= 0);
- return result;
- }
- Clickable ClickableList::atCursorPos(int idx)
- {
- foreach (const Clickable& click, *this) {
- if (idx >= click.start() && idx < click.start() + click.length())
- return click;
- }
- return Clickable();
- }