Some work about adaptive color scheme for Web UI (PR #19901)
http://[316:c51a:62a3:8b9::4]/d4708/qBittorrent/src/branch/adaptive-webui
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617 lines
16 KiB
617 lines
16 KiB
/* |
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* Bittorrent Client using Qt4 and libtorrent. |
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* Copyright (C) 2006 Christophe Dumez, Arnaud Demaiziere |
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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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* Contact : chris@qbittorrent.org, arnaud@qbittorrent.org |
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*/ |
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#ifndef RSS_H |
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#define RSS_H |
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// MAX ITEM A STREAM |
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#define STREAM_MAX_ITEM 50 |
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// 10min |
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#define STREAM_REFRESH_INTERVAL 600000 |
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#include <QFile> |
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#include <QList> |
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#include <QTemporaryFile> |
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#include <QSettings> |
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#include <QDomDocument> |
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#include <QTime> |
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#include <QUrl> |
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#include <QTimer> |
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#include <QImage> |
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#include <QHash> |
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#include "misc.h" |
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#include "downloadThread.h" |
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class RssManager; |
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class RssStream; |
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class RssItem; |
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// Item of a rss stream, single information |
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class RssItem : public QObject { |
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Q_OBJECT |
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private: |
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QString title; |
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QString link; |
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QString description; |
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QString image; |
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bool read; |
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QString downloadLink; |
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public: |
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// public constructor |
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RssItem(const QDomElement& properties) { |
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read = false; |
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downloadLink = "none"; |
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QDomElement property = properties.firstChild().toElement(); |
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while(!property.isNull()) { |
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if (property.tagName() == "title") |
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title = property.text(); |
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else if (property.tagName() == "link") |
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link = property.text(); |
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else if (property.tagName() == "description") |
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description = property.text(); |
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else if (property.tagName() == "image") |
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image = property.text(); |
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property = property.nextSibling().toElement(); |
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} |
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} |
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~RssItem(){ |
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} |
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QString getTitle() const{ |
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return title; |
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} |
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QString getLink() const{ |
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return link; |
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} |
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QString getDescription() const{ |
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if(description.isEmpty()) |
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return tr("No description available"); |
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return description; |
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} |
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QString getImage() const{ |
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return image; |
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} |
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QString getDownloadLink() const{ |
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return downloadLink; |
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} |
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bool isRead() const{ |
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return read; |
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} |
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void setRead(){ |
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read = true; |
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} |
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}; |
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// Rss stream, loaded form an xml file |
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class RssStream : public QObject{ |
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Q_OBJECT |
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private: |
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QString title; |
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QString alias; |
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QString link; |
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QString description; |
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QString image; |
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QString url; |
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QString filePath; |
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QString iconPath; |
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QList<RssItem*> listItem; |
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QTime lastRefresh; |
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bool read; |
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bool downloadFailure; |
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bool refreshed; |
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bool currently_loading; |
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public slots : |
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// read and store the downloaded rss' informations |
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void processDownloadedFile(QString file_path) { |
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// delete the old file |
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if(QFile::exists(filePath)) { |
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QFile::remove(filePath); |
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} |
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filePath = file_path; |
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downloadFailure = false; |
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openRss(); |
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lastRefresh.start(); |
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refreshed = true; |
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} |
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void setDownloadFailed(){ |
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downloadFailure = true; |
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lastRefresh.start(); |
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} |
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public: |
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RssStream(QString _url) { |
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url = _url; |
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alias = ""; |
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refreshed = false; |
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downloadFailure = false; |
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currently_loading = false; |
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iconPath = ":/Icons/rss.png"; |
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qDebug("RSSStream constructed"); |
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} |
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~RssStream(){ |
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removeAllItems(); |
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if(QFile::exists(filePath)) |
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QFile::remove(filePath); |
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if(QFile::exists(iconPath) && !iconPath.startsWith(":/")) |
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QFile::remove(iconPath); |
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} |
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// delete all the items saved |
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void removeAllItems() { |
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qDeleteAll(listItem); |
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listItem.clear(); |
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} |
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void setLoading(bool val) { |
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currently_loading = val; |
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} |
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bool isLoading() { |
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return currently_loading; |
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} |
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QString getTitle() const{ |
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return title; |
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} |
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QString getAlias() const{ |
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return alias; |
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} |
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void setAlias(QString _alias){ |
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alias = _alias; |
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} |
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// Return the alias if the stream has one, the url if it has no alias |
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QString getAliasOrUrl() const{ |
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if(!alias.isEmpty()) |
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return alias; |
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if(!title.isEmpty()) |
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return title; |
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return url; |
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} |
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QString getLink() const{ |
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return link; |
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} |
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QString getUrl() const{ |
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return url; |
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} |
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QString getDescription() const{ |
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return description; |
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} |
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QString getImage() const{ |
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return image; |
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} |
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QString getFilePath() const{ |
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return filePath; |
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} |
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QString getIconPath() const{ |
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if(downloadFailure) |
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return ":/Icons/unavailable.png"; |
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return iconPath; |
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} |
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bool hasCustomIcon() const{ |
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return !iconPath.startsWith(":/"); |
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} |
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void setIconPath(QString path) { |
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iconPath = path; |
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} |
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RssItem* getItem(unsigned int index) const{ |
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return listItem.at(index); |
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} |
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unsigned int getNbNews() const{ |
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return listItem.size(); |
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} |
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unsigned int getNbUnRead() const{ |
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unsigned int nbUnread=0; |
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RssItem *item; |
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foreach(item, listItem){ |
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if(!item->isRead()) |
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++nbUnread; |
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} |
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return nbUnread; |
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} |
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QList<RssItem*> getNewsList() const{ |
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return listItem; |
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} |
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QString getLastRefreshElapsedString() const{ |
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if(!refreshed) |
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return tr("Never"); |
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return tr("%1 ago", "10min ago").arg(misc::userFriendlyDuration((long)(lastRefresh.elapsed()/1000.)).replace("<", "<")); |
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} |
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unsigned int getLastRefreshElapsed() const{ |
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if(!refreshed) |
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return STREAM_REFRESH_INTERVAL+1; |
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return lastRefresh.elapsed(); |
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} |
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// download the icon from the adress |
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QString getIconUrl() { |
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QUrl siteUrl(url); |
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return QString::fromUtf8("http://")+siteUrl.host()+QString::fromUtf8("/favicon.ico"); |
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} |
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private: |
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// read and create items from a rss document |
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short readDoc(const QDomDocument& doc) { |
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// is it a rss file ? |
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QDomElement root = doc.documentElement(); |
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if(root.tagName() == QString::fromUtf8("html")){ |
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qDebug("the file is empty, maybe the url is invalid or the server is too busy"); |
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return -1; |
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} |
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else if(root.tagName() != QString::fromUtf8("rss")){ |
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qDebug("the file is not a rss stream, <rss> omitted: %s", root.tagName().toUtf8().data()); |
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return -1; |
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} |
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QDomNode rss = root.firstChild(); |
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QDomElement channel = root.firstChild().toElement(); |
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unsigned short listsize = getNbNews(); |
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for(unsigned short i=0; i<listsize; ++i) { |
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listItem.removeLast(); |
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} |
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while(!channel.isNull()) { |
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// we are reading the rss'main info |
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if (channel.tagName() == "channel") { |
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QDomElement property = channel.firstChild().toElement(); |
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while(!property.isNull()) { |
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if (property.tagName() == "title") { |
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title = property.text(); |
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if(alias==getUrl()) |
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setAlias(title); |
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} |
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else if (property.tagName() == "link") |
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link = property.text(); |
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else if (property.tagName() == "description") |
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description = property.text(); |
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else if (property.tagName() == "image") |
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image = property.text(); |
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else if(property.tagName() == "item") { |
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if(getNbNews() < STREAM_MAX_ITEM) { |
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listItem.append(new RssItem(property)); |
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} |
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} |
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property = property.nextSibling().toElement(); |
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} |
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} |
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channel = channel.nextSibling().toElement(); |
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} |
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return 0; |
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} |
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// not actually used, it is used to resize the list of item AFTER the update, instead of delete it BEFORE, some troubles |
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void resizeList() { |
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unsigned short lastindex = 0; |
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QString firstTitle = getItem(0)->getTitle(); |
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unsigned short listsize = getNbNews(); |
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for(unsigned short i=0; i<listsize; ++i) { |
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if(getItem(i)->getTitle() == firstTitle) |
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lastindex = i; |
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} |
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for(unsigned short i=0; i<lastindex; ++i) { |
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listItem.removeFirst(); |
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} |
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while(getNbNews()>STREAM_MAX_ITEM) { |
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listItem.removeAt(STREAM_MAX_ITEM); |
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} |
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} |
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// existing and opening test after download |
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short openRss(){ |
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QDomDocument doc("Rss Seed"); |
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QFile fileRss(filePath); |
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if(!fileRss.open(QIODevice::ReadOnly | QIODevice::Text)) { |
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qDebug("error : open failed, no file or locked, "+filePath.toUtf8()); |
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if(QFile::exists(filePath)) { |
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fileRss.remove(); |
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} |
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return -1; |
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} |
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if(!doc.setContent(&fileRss)) { |
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qDebug("can't read temp file, might be empty"); |
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fileRss.close(); |
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if(QFile::exists(filePath)) { |
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fileRss.remove(); |
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} |
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return -1; |
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} |
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// start reading the xml |
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short return_lecture = readDoc(doc); |
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fileRss.close(); |
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if(QFile::exists(filePath)) { |
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fileRss.remove(); |
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} |
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return return_lecture; |
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} |
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}; |
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// global class, manage the whole rss stream |
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class RssManager : public QObject{ |
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Q_OBJECT |
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private : |
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QHash<QString, RssStream*> streams; |
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downloadThread *downloader; |
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QTimer newsRefresher; |
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signals: |
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void feedInfosChanged(QString url, QString aliasOrUrl, unsigned int nbUnread); |
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void feedIconChanged(QString url, QString icon_path); |
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public slots : |
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void processFinishedDownload(QString url, QString path) { |
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if(url.endsWith("favicon.ico")){ |
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// Icon downloaded |
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QImage fileIcon; |
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if(fileIcon.load(path)) { |
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QList<RssStream*> res = findFeedsWithIcon(url); |
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RssStream* stream; |
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foreach(stream, res){ |
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stream->setIconPath(path); |
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if(!stream->isLoading()) |
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emit feedIconChanged(stream->getUrl(), stream->getIconPath()); |
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} |
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}else{ |
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qDebug("Unsupported icon format at %s", (const char*)url.toUtf8()); |
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} |
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return; |
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} |
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RssStream *stream = streams.value(url, 0); |
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if(!stream){ |
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qDebug("This rss stream was deleted in the meantime, nothing to update"); |
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return; |
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} |
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stream->processDownloadedFile(path); |
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stream->setLoading(false); |
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// If the feed has no alias, then we use the title as Alias |
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// this is more user friendly |
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if(stream->getAlias().isEmpty()){ |
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if(!stream->getTitle().isEmpty()) |
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stream->setAlias(stream->getTitle()); |
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} |
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emit feedInfosChanged(url, stream->getAliasOrUrl(), stream->getNbUnRead()); |
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} |
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void handleDownloadFailure(QString url, QString reason) { |
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if(url.endsWith("favicon.ico")){ |
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// Icon download failure |
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qDebug("Could not download icon at %s, reason: %s", (const char*)url.toUtf8(), (const char*)reason.toUtf8()); |
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return; |
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} |
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RssStream *stream = streams.value(url, 0); |
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if(!stream){ |
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qDebug("This rss stream was deleted in the meantime, nothing to update"); |
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return; |
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} |
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stream->setLoading(false); |
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qDebug("Could not download Rss at %s, reason: %s", (const char*)url.toUtf8(), (const char*)reason.toUtf8()); |
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stream->setDownloadFailed(); |
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emit feedInfosChanged(url, stream->getAliasOrUrl(), stream->getNbUnRead()); |
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} |
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void refreshOldFeeds(){ |
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RssStream *stream; |
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foreach(stream, streams){ |
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QString url = stream->getUrl(); |
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if(stream->isLoading()) return; |
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if(stream->getLastRefreshElapsed() < STREAM_REFRESH_INTERVAL) return; |
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qDebug("Refreshing old feed: %s...", (const char*)url.toUtf8()); |
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stream->setLoading(true); |
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downloader->downloadUrl(url); |
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if(!stream->hasCustomIcon()){ |
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downloader->downloadUrl(stream->getIconUrl()); |
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} |
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} |
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} |
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public : |
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RssManager(){ |
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downloader = new downloadThread(this); |
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connect(downloader, SIGNAL(downloadFinished(QString, QString)), this, SLOT(processFinishedDownload(QString, QString))); |
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connect(downloader, SIGNAL(downloadFailure(QString, QString)), this, SLOT(handleDownloadFailure(QString, QString))); |
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loadStreamList(); |
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connect(&newsRefresher, SIGNAL(timeout()), this, SLOT(refreshOldFeeds())); |
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newsRefresher.start(60000); |
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} |
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~RssManager(){ |
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qDeleteAll(streams); |
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delete downloader; |
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} |
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// load the list of the rss stream |
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void loadStreamList(){ |
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QSettings settings("qBittorrent", "qBittorrent"); |
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QStringList streamsUrl = settings.value("Rss/streamList").toStringList(); |
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QStringList aliases = settings.value("Rss/streamAlias").toStringList(); |
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if(streamsUrl.size() != aliases.size()){ |
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std::cerr << "Corrupted Rss list, not loading it\n"; |
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return; |
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} |
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QString url; |
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unsigned int i = 0; |
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foreach(url, streamsUrl){ |
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RssStream *stream = new RssStream(url); |
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QString alias = aliases.at(i); |
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if(!alias.isEmpty()) { |
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stream->setAlias(alias); |
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} |
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streams[url] = stream; |
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++i; |
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} |
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qDebug("NB RSS streams loaded: %d", streamsUrl.size()); |
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} |
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// save the list of the rss stream for the next session |
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void saveStreamList(){ |
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QList<QPair<QString, QString> > streamsList; |
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QStringList streamsUrl; |
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QStringList aliases; |
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RssStream *stream; |
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foreach(stream, streams){ |
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streamsUrl << stream->getUrl(); |
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aliases << stream->getAlias(); |
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} |
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QSettings settings("qBittorrent", "qBittorrent"); |
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settings.beginGroup("Rss"); |
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settings.setValue("streamList", streamsUrl); |
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settings.setValue("streamAlias", aliases); |
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settings.endGroup(); |
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} |
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// add a stream to the manager |
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void addStream(RssStream* stream){ |
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QString url = stream->getUrl(); |
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if(streams.contains(url)){ |
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qDebug("Not adding the Rss stream because it is already in the list"); |
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return; |
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} |
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streams[url] = stream; |
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emit feedIconChanged(url, stream->getIconPath()); |
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} |
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// add a stream to the manager |
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RssStream* addStream(QString url){ |
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if(streams.contains(url)){ |
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qDebug("Not adding the Rss stream because it is already in the list"); |
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return 0; |
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} |
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RssStream* stream = new RssStream(url); |
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streams[url] = stream; |
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refresh(url); |
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return stream; |
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} |
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// remove a stream from the manager |
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void removeStream(RssStream* stream){ |
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QString url = stream->getUrl(); |
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Q_ASSERT(streams.contains(url)); |
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delete streams.take(url); |
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} |
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QList<RssStream*> findFeedsWithIcon(QString icon_url){ |
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QList<RssStream*> res; |
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RssStream* stream; |
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foreach(stream, streams){ |
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if(stream->getIconUrl() == icon_url) |
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res << stream; |
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} |
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return res; |
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} |
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void removeStream(QString url){ |
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Q_ASSERT(streams.contains(url)); |
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delete streams.take(url); |
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} |
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// remove all the streams in the manager |
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void removeAll(){ |
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qDeleteAll(streams); |
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streams.clear(); |
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} |
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// reload all the xml files from the web |
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void refreshAll(){ |
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qDebug("Refreshing all rss feeds"); |
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RssStream *stream; |
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foreach(stream, streams){ |
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QString url = stream->getUrl(); |
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if(stream->isLoading()) return; |
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qDebug("Refreshing feed: %s...", (const char*)url.toUtf8()); |
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stream->setLoading(true); |
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downloader->downloadUrl(url); |
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if(!stream->hasCustomIcon()){ |
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downloader->downloadUrl(stream->getIconUrl()); |
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} |
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} |
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} |
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void refresh(QString url) { |
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Q_ASSERT(streams.contains(url)); |
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RssStream *stream = streams[url]; |
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if(stream->isLoading()) return; |
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stream->setLoading(true); |
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downloader->downloadUrl(url); |
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if(!stream->hasCustomIcon()){ |
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downloader->downloadUrl(stream->getIconUrl()); |
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}else{ |
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qDebug("No need to download this feed's icon, it was already downloaded"); |
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} |
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} |
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// XXX: Used? |
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unsigned int getNbFeeds() { |
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return streams.size(); |
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} |
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RssStream* getFeed(QString url){ |
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Q_ASSERT(streams.contains(url)); |
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return streams[url]; |
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} |
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// Set an alias for a stream and save it for later |
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void setAlias(QString url, QString newAlias) { |
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Q_ASSERT(!newAlias.isEmpty()); |
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RssStream * stream = streams.value(url, 0); |
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Q_ASSERT(stream != 0); |
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stream->setAlias(newAlias); |
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emit feedInfosChanged(url, stream->getAliasOrUrl(), stream->getNbUnRead()); |
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} |
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// Return all the rss feeds we have |
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QList<RssStream*> getRssFeeds() const { |
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return streams.values(); |
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} |
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}; |
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#endif
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