Difference between revisions of "Development/Tutorials/Collaboration/HotNewStuff/Updates"

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(DownloadManager)
(DownloadManager)
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


Get Hot New Stuff 3 Introduction
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);


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