Development/Tutorials/Collaboration/HotNewStuff/Updates: Difference between revisions
| Line 18: | Line 18: | ||
Use an instance of DownloadManager in your class: | Use an instance of DownloadManager in your class: | ||
<code cppqt="cppqt"> | <code cppqt="cppqt"> | ||
m_downloadManager = new KNS3::DownloadManager("plasmoids.knsrc", this); | m_downloadManager = new KNS3::DownloadManager("plasmoids.knsrc", this); | ||
// to know when checking for updates is done | |||
connect(m_downloadManager, SIGNAL(searchResult(KNS3::Entry::List)), | connect(m_downloadManager, SIGNAL(searchResult(KNS3::Entry::List)), | ||
this, SLOT(slotUpdatesFound(KNS3::Entry::List))); | this, SLOT(slotUpdatesFound(KNS3::Entry::List))); | ||
// to know about finished installations | |||
connect(m_downloadManager, SIGNAL(entryStatusChanged(KNS3::Entry)), | connect(m_downloadManager, SIGNAL(entryStatusChanged(KNS3::Entry)), | ||
this, SLOT(entryStatusChanged(KNS3::Entry))); | this, SLOT(entryStatusChanged(KNS3::Entry))); | ||
Revision as of 17:28, 1 April 2010
Development/Tutorials/Collaboration/HotNewStuff/Updates
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| Tutorial Series | HotNewStuff |
| Previous | Get Hot New Stuff 3 - Download |
| What's Next | Get Hot New Stuff 3 - Upload |
| Further Reading | n/a |
Overview
Just like firefox informs you of updates to your addons, KNewStuff can let you check for updates since KDE SC 4.5.
There is an example in kdeexamples.
DownloadManager
The class in question is DownloadManager.
Use an instance of DownloadManager in your class:
m_downloadManager = new KNS3::DownloadManager("plasmoids.knsrc", this);
// to know when checking for updates is done
connect(m_downloadManager, SIGNAL(searchResult(KNS3::Entry::List)),
this, SLOT(slotUpdatesFound(KNS3::Entry::List)));
// to know about finished installations
connect(m_downloadManager, SIGNAL(entryStatusChanged(KNS3::Entry)),
this, SLOT(entryStatusChanged(KNS3::Entry)));
m_downloadManager->checkForUpdates();
The entryStatusChanged signal informs you when you installed an entry. If you don't want to make use of that possibility, you can ignore the signal.
void UpdateChecker::slotUpdatesFound(const KNS3::Entry::List& updates)
{
m_updates = updates;
foreach (const KNS3::Entry& entry, updates) {
kDebug() << entry.name();
}
}
To install an entry you can show the download dialog or do it without the dialog by using:
m_downloadManager->installEntry(entry);