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https://github.com/qbittorrent/qBittorrent.git
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66aeafdc63
ArticleListWidget::handleArticleList() can be called inside ArticleListWidget::handleArticleAboutToBeRemoved() and list widget item can be removed at this point. Now we checking for it existence. Closes #6896.
133 lines
4.5 KiB
C++
133 lines
4.5 KiB
C++
/*
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* Bittorrent Client using Qt and libtorrent.
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* Copyright (C) 2017 Vladimir Golovnev <glassez@yandex.ru>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* In addition, as a special exception, the copyright holders give permission to
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* link this program with the OpenSSL project's "OpenSSL" library (or with
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* modified versions of it that use the same license as the "OpenSSL" library),
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* and distribute the linked executables. You must obey the GNU General Public
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* License in all respects for all of the code used other than "OpenSSL". If you
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* modify file(s), you may extend this exception to your version of the file(s),
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* but you are not obligated to do so. If you do not wish to do so, delete this
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* exception statement from your version.
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*/
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#include "articlelistwidget.h"
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#include <QListWidgetItem>
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#include "base/rss/rss_article.h"
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#include "base/rss/rss_item.h"
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ArticleListWidget::ArticleListWidget(QWidget *parent)
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: QListWidget(parent)
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{
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setContextMenuPolicy(Qt::CustomContextMenu);
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setSelectionMode(QAbstractItemView::ExtendedSelection);
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checkInvariant();
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}
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RSS::Article *ArticleListWidget::getRSSArticle(QListWidgetItem *item) const
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{
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Q_ASSERT(item);
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return reinterpret_cast<RSS::Article *>(item->data(Qt::UserRole).value<quintptr>());
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}
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QListWidgetItem *ArticleListWidget::mapRSSArticle(RSS::Article *rssArticle) const
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{
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return m_rssArticleToListItemMapping.value(rssArticle);
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}
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void ArticleListWidget::setRSSItem(RSS::Item *rssItem, bool unreadOnly)
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{
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// Clear the list first
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clear();
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m_rssArticleToListItemMapping.clear();
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if (m_rssItem)
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m_rssItem->disconnect(this);
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m_unreadOnly = unreadOnly;
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m_rssItem = rssItem;
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if (m_rssItem) {
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connect(m_rssItem, &RSS::Item::newArticle, this, &ArticleListWidget::handleArticleAdded);
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connect(m_rssItem, &RSS::Item::articleRead, this, &ArticleListWidget::handleArticleRead);
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connect(m_rssItem, &RSS::Item::articleAboutToBeRemoved, this, &ArticleListWidget::handleArticleAboutToBeRemoved);
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foreach (auto article, rssItem->articles()) {
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if (!(m_unreadOnly && article->isRead())) {
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auto item = createItem(article);
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addItem(item);
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m_rssArticleToListItemMapping.insert(article, item);
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}
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}
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}
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checkInvariant();
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}
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void ArticleListWidget::handleArticleAdded(RSS::Article *rssArticle)
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{
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if (!(m_unreadOnly && rssArticle->isRead())) {
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auto item = createItem(rssArticle);
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insertItem(0, item);
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m_rssArticleToListItemMapping.insert(rssArticle, item);
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}
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checkInvariant();
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}
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void ArticleListWidget::handleArticleRead(RSS::Article *rssArticle)
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{
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auto item = mapRSSArticle(rssArticle);
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if (!item) return;
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item->setData(Qt::ForegroundRole, QPalette().color(QPalette::Inactive, QPalette::WindowText));
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item->setData(Qt::DecorationRole, QIcon(":/icons/sphere.png"));
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checkInvariant();
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}
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void ArticleListWidget::handleArticleAboutToBeRemoved(RSS::Article *rssArticle)
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{
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delete m_rssArticleToListItemMapping.take(rssArticle);
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checkInvariant();
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}
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void ArticleListWidget::checkInvariant() const
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{
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Q_ASSERT(count() == m_rssArticleToListItemMapping.count());
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}
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QListWidgetItem *ArticleListWidget::createItem(RSS::Article *article) const
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{
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Q_ASSERT(article);
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QListWidgetItem *item = new QListWidgetItem;
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item->setData(Qt::DisplayRole, article->title());
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item->setData(Qt::UserRole, reinterpret_cast<quintptr>(article));
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if (article->isRead()) {
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item->setData(Qt::ForegroundRole, QPalette().color(QPalette::Inactive, QPalette::WindowText));
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item->setData(Qt::DecorationRole, QIcon(":/icons/sphere.png"));
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}
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else {
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item->setData(Qt::ForegroundRole, QPalette().color(QPalette::Active, QPalette::Link));
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item->setData(Qt::DecorationRole, QIcon(":/icons/sphere2.png"));
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}
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return item;
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}
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