diff options
Diffstat (limited to 'knewsticker/knewsticker.cpp')
| -rw-r--r-- | knewsticker/knewsticker.cpp | 546 |
1 files changed, 546 insertions, 0 deletions
diff --git a/knewsticker/knewsticker.cpp b/knewsticker/knewsticker.cpp new file mode 100644 index 00000000..6d2f90cb --- /dev/null +++ b/knewsticker/knewsticker.cpp @@ -0,0 +1,546 @@ +/* + * knewsticker.cpp + * + * Copyright (c) 2000, 2001 Frerich Raabe <raabe@kde.org> + * + * 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. For licensing and distribution details, check the + * accompanying file 'COPYING'. + */ +#include "knewsticker.h" +#include "newsengine.h" +#include "newsscroller.h" +#include "configaccess.h" +#include "newsiconmgr.h" +#include "knewstickerconfig.h" + +#include <kaboutapplication.h> +#include <kapplication.h> +#include <karrowbutton.h> +#include <kbugreport.h> +#include <kdebug.h> +#include <kiconloader.h> +#include <knotifyclient.h> +#include <kprocess.h> +#include <kprotocolmanager.h> +#include <kstandarddirs.h> +#include <kstartupinfo.h> + +#include <qcursor.h> +#include <qlayout.h> +#include <qtimer.h> +#include <qtooltip.h> + +#include <dcopclient.h> + +KNewsTicker::KNewsTicker(const QString &cfgFile, Type t, int actions, QWidget *parent, const char *name) + : ConfigIface(), DCOPObject("KNewsTicker"), + KPanelApplet(cfgFile, t, actions, parent, name), + m_instance(new KInstance("knewsticker")), + m_dcopClient(new DCOPClient()), + m_cfg(new ConfigAccess(config())), + m_newsTimer(new QTimer(this)), + m_updateTimer(new QTimer(this)), + m_newsIconMgr(NewsIconMgr::self()), + m_aboutData(new KAboutData("knewsticker", I18N_NOOP("KNewsTicker"), "v0.2", + I18N_NOOP("A news ticker applet."), KAboutData::License_BSD, + I18N_NOOP("(c) 2000, 2001 The KNewsTicker developers"))) +{ + QHBoxLayout *layout = new QHBoxLayout(this); + + m_contextMenu = new KNewsTickerMenu(this); + connect(m_contextMenu, SIGNAL(aboutToHide()), + SLOT(slotContextMenuAboutToHide())); + setCustomMenu(m_contextMenu); + + m_arrowButton = new KArrowButton(this); + QToolTip::add(m_arrowButton, i18n("Show menu")); + connect(m_arrowButton, SIGNAL(clicked()), SLOT(slotArrowButtonPressed())); + m_arrowButton->setFocusPolicy(NoFocus); + setupArrowButton(); + layout->addWidget(m_arrowButton); + + m_scroller = new NewsScroller(this, m_cfg); + layout->addWidget(m_scroller); + + m_dcopClient->registerAs("knewsticker", false); + + QToolTip::add(m_scroller, QString::null); + connect(m_scroller, SIGNAL(contextMenu()), SLOT(slotOpenContextMenu())); + + connect(m_newsTimer, SIGNAL(timeout()), SLOT(slotUpdateNews())); + + connect(m_updateTimer, SIGNAL(timeout()), SLOT(slotNotifyOfFailures())); + + m_aboutData->addAuthor("Frerich Raabe", I18N_NOOP("Original author"), + "raabe@kde.org"); + m_aboutData->addAuthor("Malte Starostik", I18N_NOOP("Hypertext headlines" + " and much more"), "malte@kde.org"); + m_aboutData->addAuthor("Wilco Greven", I18N_NOOP("Mouse wheel support"), + "greven@kde.org"); + m_aboutData->addAuthor("Adriaan de Groot", I18N_NOOP("Rotated scrolling text" + " modes"), "adridg@sci.kun.nl"); + + reparseConfig(); + + KStartupInfo::appStarted(); +} + +KNewsTicker::~KNewsTicker() +{ + delete m_cfg; + delete m_dcopClient; +} + +int KNewsTicker::heightForWidth(int) const +{ + return m_scroller->sizeHint().height() + m_arrowButton->height(); +} + +int KNewsTicker::widthForHeight(int) const +{ + return m_scroller->sizeHint().width() + m_arrowButton->width(); +} + +void KNewsTicker::preferences() +{ + KNewsTickerConfig dlg(m_cfg, this); + if (dlg.exec() == QDialog::Accepted) { + reparseConfig(); + } +} + +void KNewsTicker::about() +{ + KAboutApplication aboutDlg(m_aboutData); + aboutDlg.exec(); +} + +void KNewsTicker::help() +{ + kapp->invokeHelp(QString::null, QString::fromLatin1("knewsticker")); +} + +void KNewsTicker::reportBug() +{ + KBugReport bugReport(this, true, m_aboutData); + bugReport.exec(); +} + +void KNewsTicker::reparseConfig() +{ + m_cfg->reparseConfiguration(); + m_newsSources.clear(); + + QStringList newsSources = m_cfg->newsSources(); + QStringList::ConstIterator it = newsSources.begin(); + QStringList::ConstIterator end = newsSources.end(); + for (; it != end; ++it) { + NewsSourceBase::Ptr ns = m_cfg->newsSource((*it)); + if (!ns->data().enabled) + continue; + + connect(ns, SIGNAL(newNewsAvailable(const NewsSourceBase::Ptr &, bool)), + SLOT(slotNewsSourceUpdated(const NewsSourceBase::Ptr &, bool))); + connect(ns, SIGNAL(invalidInput(const NewsSourceBase::Ptr &)), + SLOT(slotNewsSourceFailed(const NewsSourceBase::Ptr &))); + m_newsSources.append(ns); + } + + setOfflineMode(m_cfg->offlineMode()); + if (!m_cfg->offlineMode()) + slotUpdateNews(); +} + +void KNewsTicker::slotUpdateNews() +{ + kdDebug(5005) << "slotUpdateNews()" << endl; + m_newNews = false; + + m_updateTimer->start(KProtocolManager::responseTimeout(), true); + + m_failedNewsUpdates.clear(); + m_pendingNewsUpdates.clear(); + + m_scroller->clear(); + + NewsSourceBase::List::Iterator it = m_newsSources.begin(); + NewsSourceBase::List::Iterator end = m_newsSources.end(); + for (; it != end; ++it) { + m_pendingNewsUpdates += (*it)->data().name; + (*it)->retrieveNews(); + (*it)->getIcon(); + } + kdDebug(5005) << "m_pendingNewsUpdates = " << m_pendingNewsUpdates.join(",") + << endl; +} + +void KNewsTicker::slotNewsSourceUpdated(const NewsSourceBase::Ptr &ns, + bool newNews) +{ + kdDebug(5005) << "slotNewsSourceUpdate()" << endl; + if (newNews) + m_newNews = true; + + if (!ns->articles().isEmpty()) + if (m_cfg->scrollMostRecentOnly()) + m_scroller->addHeadline(ns->articles().first()); + else { + Article::List articles = ns->articles(); + Article::List::ConstIterator artIt = articles.begin(); + Article::List::ConstIterator artEnd = articles.end(); + for (; artIt != artEnd; ++artIt) + m_scroller->addHeadline(*artIt); + } + + m_scroller->reset(true); + + m_pendingNewsUpdates.remove(ns->data().name); + kdDebug(5005) << "Updated news source: '" << ns->data().name << "'" << "\n" + << "m_pendingNewsUpdates = " << m_pendingNewsUpdates.join(",") << "\n" + << "m_failedNewsUpdates = " << m_failedNewsUpdates.join(",") + << endl; + + if (!m_pendingNewsUpdates.isEmpty()) + return; + + m_updateTimer->stop(); + + if (!m_failedNewsUpdates.isEmpty()) + slotNotifyOfFailures(); + + if (m_newNews) { + KNotifyClient::Instance instance(m_instance); + KNotifyClient::event(winId(), QString::fromLatin1("NewNews")); + } +} + +void KNewsTicker::slotNewsSourceFailed(const NewsSourceBase::Ptr &ns) +{ + m_failedNewsUpdates += ns->newsSourceName(); + slotNewsSourceUpdated(ns); +} + +void KNewsTicker::mousePressEvent(QMouseEvent *e) +{ + if (e->button() == QMouseEvent::RightButton) + slotOpenContextMenu(); +} + +void KNewsTicker::slotOpenContextMenu() +{ + m_contextMenu->setFullMenu(true); + m_contextMenu->exec(QCursor::pos()); +} + +void KNewsTicker::slotArrowButtonPressed() +{ + QPoint pos(m_arrowButton->mapToGlobal(QPoint(0, 0))); + QSize size(m_arrowButton->size()); + + if (position() == KPanelApplet::pTop) { + pos.setY(pos.y() + size.height() + 2); + } else if (position() == KPanelApplet::pBottom) { + const int y = pos.y() - m_contextMenu->sizeHint().height() - 2; + pos.setY(QMAX(0, y)); + } else if (position() == KPanelApplet::pLeft ) { + pos.setX(pos.x() + size.width() + 2); + } else { // position() == KPanelApplet::pRight + const int x = pos.x() - m_contextMenu->sizeHint().width() - 2; + pos.setX(QMAX(0, x)); + } + + m_contextMenu->setFullMenu(true); + m_contextMenu->exec(pos); +} + +void KNewsTicker::positionChange(Position) +{ + delete layout(); + + QBoxLayout *layout; + + if (orientation() == Horizontal) + layout = new QHBoxLayout(this); + else + layout = new QVBoxLayout(this); + + if (m_arrowButton) { + layout->addWidget(m_arrowButton); + setupArrowButton(); + } + + layout->addWidget(m_scroller); +} + +void KNewsTicker::slotContextMenuAboutToHide() +{ + if (m_arrowButton) + m_arrowButton->setDown(false); +} + +void KNewsTicker::slotNotifyOfFailures() +{ + KNotifyClient::Instance instance(m_instance); + QString notification = QString::null; + + if (m_failedNewsUpdates.count() == 1) + notification = i18n("<qt>Could not update news site '%1'.<br>" + "The supplied resource file is probably invalid or" + " broken.</qt>").arg(m_failedNewsUpdates.first()); + else if (m_failedNewsUpdates.count() > 1 && m_failedNewsUpdates.count() < 8) { + notification = i18n("<qt>The following news sites had problems. Their" + " resource files are probably invalid or broken.<ul>"); + QStringList::ConstIterator it = m_failedNewsUpdates.begin(); + QStringList::ConstIterator end = m_failedNewsUpdates.end(); + for (; it != end; ++it) + notification += QString::fromLatin1("<li>%1</li>").arg(*it); + notification += QString::fromLatin1("</ul></qt>"); + } else + notification = i18n("Failed to update several news" + " sites. The Internet connection might be cut."); + + KNotifyClient::event(winId(), QString::fromLatin1("InvalidRDF"), notification); +} + +void KNewsTicker::setInterval(const uint interval) +{ + m_cfg->setInterval(interval); + if ( interval > 4 ) + m_newsTimer->changeInterval(interval * 60 * 1000); +} + +void KNewsTicker::setScrollingSpeed(const uint scrollingSpeed) +{ + m_cfg->setScrollingSpeed(scrollingSpeed); + m_scroller->reset(true); +} + +void KNewsTicker::setMouseWheelSpeed(const uint mouseWheelSpeed) +{ + m_cfg->setMouseWheelSpeed(mouseWheelSpeed); +} + +void KNewsTicker::setScrollingDirection(const uint scrollingDirection) +{ + m_cfg->setScrollingDirection(scrollingDirection); + m_scroller->reset(true); +} + +void KNewsTicker::setCustomNames(bool customNames) +{ + m_cfg->setCustomNames(customNames); +} + +void KNewsTicker::setScrollMostRecentOnly(bool scrollMostRecentOnly) +{ + m_cfg->setScrollMostRecentOnly(scrollMostRecentOnly); + m_scroller->reset(true); +} + +void KNewsTicker::setOfflineMode(bool offlineMode) +{ + if (offlineMode) + m_newsTimer->stop(); + else + if ( m_cfg->interval() > 4 ) + m_newsTimer->start(m_cfg->interval() * 1000 * 60); + + m_cfg->setOfflineMode(offlineMode); +} + +void KNewsTicker::setUnderlineHighlighted(bool underlineHighlighted) +{ + m_cfg->setUnderlineHighlighted(underlineHighlighted); + m_scroller->reset(true); +} + +void KNewsTicker::setShowIcons(bool showIcons) +{ + m_cfg->setShowIcons(showIcons); + m_scroller->reset(true); +} + +void KNewsTicker::setSlowedScrolling(bool slowedScrolling) +{ + m_cfg->setSlowedScrolling(slowedScrolling); +} + +void KNewsTicker::setForegroundColor(const QColor &foregroundColor) +{ + m_cfg->setForegroundColor(foregroundColor); + m_scroller->reset(false); +} + +void KNewsTicker::setBackgroundColor(const QColor &backgroundColor) +{ + m_cfg->setBackgroundColor(backgroundColor); + m_scroller->reset(false); +} + +void KNewsTicker::setHighlightedColor(const QColor &highlightedColor) +{ + m_cfg->setHighlightedColor(highlightedColor); + m_scroller->reset(false); +} + +void KNewsTicker::setupArrowButton() +{ + ArrowType at; + + if (orientation() == Horizontal) { + m_arrowButton->setFixedWidth(12); + m_arrowButton->setMaximumHeight(128); + at = (position() == KPanelApplet::pTop ? DownArrow : UpArrow); + } else { + m_arrowButton->setMaximumWidth(128); + m_arrowButton->setFixedHeight(12); + at = (position() == KPanelApplet::pLeft ? RightArrow : LeftArrow); + } + m_arrowButton->setArrowType(at); +} + +KNewsTickerMenu::KNewsTickerMenu(KNewsTicker *parent, const char *name) + : KPopupMenu(parent, name), + m_parent(parent), + m_fullMenu(false) +{ + populateMenu(); +} + +void KNewsTickerMenu::populateMenu() +{ + clear(); + + /* + * Perhaps this hardcoded stuff should be replaced by some kind of + * themeing functionality? + */ + const QPixmap lookIcon = SmallIcon(QString::fromLatin1("viewmag")); + const QPixmap newArticleIcon = SmallIcon(QString::fromLatin1("info")); + const QPixmap oldArticleIcon = SmallIcon(QString::fromLatin1("mime_empty")); + const QPixmap noArticlesIcon = SmallIcon(QString::fromLatin1("remove")); + + unsigned int articleIdx = 0; + const NewsSourceBase::List sources = m_parent->m_newsSources; + NewsSourceBase::List::ConstIterator nIt = sources.begin(); + for (; nIt != sources.end(); ++nIt) { + NewsSourceBase::Ptr ns = *nIt; + + KPopupMenu *submenu = new KPopupMenu; + int checkNewsId = submenu->insertItem(lookIcon, i18n("Check News"), this, SLOT(slotCheckNews(int)), 0, sources.findIndex(ns) + 1000); + setItemParameter(checkNewsId, sources.findIndex(ns)); + + submenu->insertSeparator(); + + if (m_parent->m_pendingNewsUpdates.contains(ns->newsSourceName())) { + submenu->insertItem(noArticlesIcon, i18n("Currently Being Updated, No Articles Available")); + } else if (!ns->articles().isEmpty()) { + const Article::List articles = ns->articles(); + Article::List::ConstIterator artIt = articles.begin(); + for (; artIt != articles.end(); ++artIt) { + Article::Ptr a = *artIt; + QString headline = a->headline().replace('&', "&&"); + int id; + if ( a->read() ) + id = submenu->insertItem(oldArticleIcon, headline, this, SLOT(slotOpenArticle(int)), 0, articleIdx+2000); + else + id = submenu->insertItem(newArticleIcon, headline, this, SLOT(slotOpenArticle(int)), 0, articleIdx+2000); + kdDebug( 5005 ) << "Setting articles index for " << a->headline() << " to " << articleIdx << endl; + setItemParameter( id, articleIdx++ ); + } + } else { + submenu->insertItem(noArticlesIcon, i18n("No Articles Available")); + } + + insertItem(ns->icon(), ns->newsSourceName().replace('&', "&&"), submenu); + } + + if (!m_parent->m_cfg->newsSources().isEmpty()) + insertSeparator(); + + insertItem(lookIcon, i18n("Check News"), m_parent, SLOT(slotUpdateNews())); + int i = insertItem(i18n("Offline Mode"), this, SLOT(slotToggleOfflineMode()), 0, 4711 ); + setItemChecked(i, m_parent->m_cfg->offlineMode()); + + if (m_fullMenu) { + insertSeparator(); + + const QPixmap logoIcon = SmallIcon(QString::fromLatin1("knewsticker")); + const QPixmap helpIcon = SmallIcon(QString::fromLatin1("help")); + const QPixmap confIcon = SmallIcon(QString::fromLatin1("configure")); + + insertTitle(logoIcon, i18n("KNewsTicker"), 0, 0); + + insertItem(helpIcon, i18n("Help"), this, SLOT(slotShowHelp())); + insertItem(logoIcon, i18n("About KNewsTicker"), this, SLOT(slotShowAbout())); + insertSeparator(); + insertItem(confIcon, i18n("Configure KNewsTicker..."), this, SLOT(slotConfigure())); + } +} + +void KNewsTickerMenu::slotShowHelp() +{ + m_parent->help(); +} + +void KNewsTickerMenu::slotShowAbout() +{ + m_parent->about(); +} + +void KNewsTickerMenu::slotConfigure() +{ + m_parent->preferences(); +} + +void KNewsTickerMenu::slotToggleOfflineMode() +{ + m_parent->setOfflineMode(!m_parent->m_cfg->offlineMode()); + setItemChecked( indexOf( 4711 ), !m_parent->m_cfg->offlineMode() ); +} + +void KNewsTickerMenu::slotCheckNews(int idx) +{ + m_parent->m_newsSources[ idx - 1000 ]->retrieveNews(); +} + +void KNewsTickerMenu::slotOpenArticle(int idx) +{ + unsigned int i = idx - 2000; + const NewsSourceBase::List sources = m_parent->m_newsSources; + NewsSourceBase::List::ConstIterator it = sources.begin(); + while ( it != sources.end() ) { + if ( ( *it )->articles().isEmpty() ) { + ++it; + continue; + } + + if ( i <= ( *it )->articles().count() - 1 ) + break; + + i -= ( *it )->articles().count(); + + ++it; + } + + if ( it == sources.end() ) + return; + + ( *it )->articles()[ i ]->open(); +} + +extern "C" +{ + KDE_EXPORT KPanelApplet* init(QWidget *parent, const QString &configFile) + { + KGlobal::locale()->insertCatalogue(QString::fromLatin1("knewsticker")); + return new KNewsTicker(configFile, KPanelApplet::Stretch, + KPanelApplet::Preferences | KPanelApplet::About | + KPanelApplet::Help | KPanelApplet::ReportBug, + parent, "knewsticker"); + } +} + +#include "knewsticker.moc" |