Freelog 117/FreelogNo117-OctobreNovembre2013.iso/Theme/8GadgetPack/8GadgetPackSetup.msi/Gadgets.7z/Gadgets/FeedReader.gadget/scripts/settings.js

Text File | 2011-10-09 | 5KB | 188 lines

/* Set the event handlers */
System.Gadget.onSettingsClosing = settingsClosing;

/* Saves the settings when Settings dialog is closed */
function settingsClosing(event)
{
    if (event.closeAction == event.Action.commit)
    {
        System.Gadget.Settings.write( "refresh", feedRefresh.options[feedRefresh.selectedIndex].value );
        System.Gadget.Settings.write( "theme", feedTheme.options[feedTheme.selectedIndex].value );
        System.Gadget.Settings.write( "noItems", noItems.options[noItems.selectedIndex].value );
        System.Gadget.Settings.write( "autoScroll", ((autoScrollCheckBox.checked == true) ? 1 : 0 ) );
        event.cancel = false;
    }
}

/* Loads the existing settings when the Settings dialog is shown */
function loadSettings()
{
    var refresh = System.Gadget.Settings.read("refresh");
    var theme = System.Gadget.Settings.read("theme");

    switch ( refresh ) {
        case 60000:
            feedRefresh[0].selected = "1";
            break;
        case 900000:
            feedRefresh[1].selected = "1";
            break;
        case 1800000:
            feedRefresh[2].selected = "1";
            break;
        case 3600000:
            feedRefresh[3].selected = "1";
            break;
        default:
            feedRefresh[4].selected = "1";
    }

    for ( var i=0; i<4; i++ ) if ( feedTheme[i].value == theme ) feedTheme[i].selected = "1";
    updatePreview();

    buildFeedList();
    var current = System.Gadget.Settings.read("currentFeed");
    if ( current == "" ) current = 0;
    feeds.options[current].selected = "1";

    var isAutoScroll = System.Gadget.Settings.read( "autoScroll" );
    autoScrollCheckBox.checked = (isAutoScroll == 1);
    var items = System.Gadget.Settings.read("noItems");
    if ( items == "" ) items = 4;
    noItems.options[items/2-2].selected = "1";
}

/* Updates the preview image when theme is switched */
function updatePreview()
{
    previewImage.src = "/themes/" + feedTheme.options[feedTheme.selectedIndex].value + "/preview.png";
}

/* Builds the feed list */
function buildFeedList()
{
    var n;
    var aux = System.Gadget.Settings.read("noFeeds");
    if ( aux == "" ) n = 0; else n = aux;

    for ( var i = 0; i < feeds.options.length; i++ ) feeds.options[i] = null;

    for ( var i = 0; i < n; i++ )
    {
        var text = System.Gadget.Settings.read("feedName"+i);
        feeds.options[i] = new Option(text,i+'');
    }
}

/* Add a new feed */
function addNewFeed( name, url )
{
    if ( url == "" )
    {
        if ( feedURL.value.replace(/^\s+|\s+$/, '') == "" )
        {
            errorMessage.innerHTML = "URL is empty.";
            return true;
        }
        if ( feedName.value.replace(/^\s+|\s+$/, '') == "" )
        {
            errorMessage.innerHTML = "Name is empty.";
            return true;
        }
        url = feedURL.value;
        name = feedName.value;
    }

    var n;
    var aux = System.Gadget.Settings.read("noFeeds");
    if ( aux == "" ) n = 0; else n = aux;

    System.Gadget.Settings.write( "feedName"+n, name );
    System.Gadget.Settings.write( "feedURL"+n, url );

    n++;
    System.Gadget.Settings.write("noFeeds",n);

    feedName.value = "";
    feedURL.value = "";
    errorMessage.innerHTML = "";

    buildFeedList();
    feeds.options[feeds.options.length-1].selected = "1";
}

/* Deletes an existing feed */
function deleteExistingFeed()
{
    var n;
    var aux = System.Gadget.Settings.read("noFeeds");
    if ( aux == "" ) n = 0; else n = aux;

    for ( var i = feeds.selectedIndex; i < n; i++ )
    {
        var URL = System.Gadget.Settings.read("feedURL"+(i+1));
        var name = System.Gadget.Settings.read("feedName"+(i+1));
        System.Gadget.Settings.write("feedURL"+i, URL);
        System.Gadget.Settings.write("feedName"+i, name);
    }

    if ( n > 0 ) n--; else n = 0;
    System.Gadget.Settings.write("noFeeds",n);

    buildFeedList();
}

/* Import feeds from Internet Explorer 7, using Vista feed platform */
function importFeedsFromIE7()
{
    var feedManager = null;
    try
    {
        feedManager = new ActiveXObject( "Microsoft.FeedsManager" );
        if ( feedManager == null ) return false;
        searchAndAddFeed( feedManager.RootFolder );
    } catch(e) {}
}

/* Recursively search and add feeds from vista feed platform */
function searchAndAddFeed( folder )
{
    var feeds = folder.Feeds;
    for ( var i = 0; i < feeds.Count; i++ )    addNewFeed( feeds.Item(i).Name, feeds.Item(i).Url );

    var subFolders = folder.Subfolders;
    for ( var i = 0; i < subFolders.Count; i++ ) searchAndAddFeed( subFolders.Item(i) );
}

/* Export feeds into IE/Vista feed platform */
function exportFeeds()
{
    var feedManager = null;
    try
    {
        feedManager = new ActiveXObject( "Microsoft.FeedsManager" );
        if ( feedManager == null ) return false;
    } catch(e) {}

    var folder = feedManager.RootFolder.CreateSubfolder( "Feed Reader Gadget Feeds" );
    var n;
    var aux = System.Gadget.Settings.read("noFeeds");
    if ( aux == "" ) n = 0; else n = aux;

    for ( var i = 0; i < n; i++ )
    {
        var name = System.Gadget.Settings.read("feedName"+i);
        var url = System.Gadget.Settings.read("feedURL"+i);
        folder.CreateFeed( name, url );
    }
}

/* Shows a specified table in the settings dialog */
function showTable( table )
{
    feedsTable.style.display = 'none';
    aboutTable.style.display = 'none';
    optionsTable.style.display = 'none';
    table.style.display = 'block';
}