MediaWiki:Common.js - Pandora Wiki

Revision as of 13:28, 25 January 2011 by EvilDragon (talk | contribs)
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/* Any JavaScript here will be loaded for all users on every page load. */
 
 
/* Test if an element has a certain class **************************************
 * Note: this is straight out of Wikipedia's Common.js (http://en.wikipedia.org/wiki/MediaWiki:Common.js)
 */
 
var hasClass = (function () {
    var reCache = {};
    return function (element, className) {
        return (reCache[className] ? reCache[className] : (reCache[className] = new RegExp("(?:\\s|^)" + className + "(?:\\s|$)"))).test(element.className);
    };
})();
 
 
/** Hideable notes  *********************************************************
 * This is based off of code from Wikipedia's Common.js (http://en.wikipedia.org/wiki/MediaWiki:Common.js)
 */
 
function showNotes( spanIndex )
{
    var Button = document.getElementById( "showNoteLink" + spanIndex );
    var Span = document.getElementById( "showNotes" + spanIndex );
 
    if (!Span || !Button) 
    {
        return false;
    }
 
    if (Button.firstChild.data == "[show]")
    {
        Span.style.display = "inline";
        Button.firstChild.data = " [hide]";
    }
    else
    {
        Span.style.display = "none";
        Button.firstChild.data = "[show]";
    }
}
 
function createShowNotesLinks()
{
    var spanIndex = 0;
    var Spans = document.getElementsByTagName( "span" );
    var CurrentSpan = new Object();
 
    for ( var i = 0; i < Spans.length; i++ ) 
    {
        if ( hasClass( Spans[i], "hiddenNotes" ) ) 
        {
            CurrentSpan = Spans[i];
            CurrentSpan.setAttribute( "id", "showNotes" + spanIndex );
 
            var Button     = document.createElement( "span" );
            var ButtonLink = document.createElement( "a" );
            var ButtonText = document.createTextNode( "[show]" );
 
            ButtonLink.setAttribute( "id", "showNoteLink" + spanIndex );
            ButtonLink.setAttribute( "href", "javascript:" );
            addHandler( ButtonLink,  "click", new Function( "evt", "showNotes(" + spanIndex + " ); return killEvt( evt );") );
            ButtonLink.appendChild( ButtonText );
 
            Button.appendChild(document.createTextNode( " " ));
            Button.appendChild(ButtonLink);
 
            CurrentSpan.parentNode.insertBefore( Button, CurrentSpan.nextSibling );
            CurrentSpan.style.display="none";
 
            spanIndex++;
        }
    }
}
 
addOnloadHook( createShowNotesLinks );


function mouseOver(e, imgUrl)
{
        var body = document.getElementById('bodyContent');
        
        var image = new Image();
        image.src = imgUrl;
        
        var previewImage = document.createElement('img');
        previewImage.setAttribute('src', imgUrl);
        previewImage.setAttribute('id', 'previewImage');

        var scrolledHeight = 0;

        if (document.documentElement.scrollTop)
                scrolledHeight = document.documentElement.scrollTop;
        else if (document.body.scrollTop)
                scrolledHeight = document.body.scrollTop;
        else
                scrolledHeight = window.pageYOffset;

        previewStyle = "position: absolute; left: " + (e.clientX - image.width - 200) + "px; top: " + (e.clientY + scrolledHeight - 30) + "px; border: 1px solid grey;";
        previewImage.setAttribute('style', previewStyle);
        
        body.appendChild(previewImage);
}


function mouseOut()
{
        var body = document.getElementById('bodyContent');
        var previewImage = document.getElementById('previewImage');
        
        body.removeChild(previewImage);
}

function createScreenshotLinks()
{
    var spanIndex = 0;
    var Spans = document.getElementsByTagName( "span" );
    var CurrentSpan = new Object();

    for ( var i = 0; i < Spans.length; i++ ) 
    {
        if ( hasClass( Spans[i], "previewScreenshot" ) ) 
        {
            CurrentSpan = Spans[i];

            var wikiLinks = new Object(); // This is needed because the wiki automatically turns urls into links.
            wikiLinks = CurrentSpan.getElementsByTagName( "a" );
            var imgURL = wikiLinks[0].innerHTML;

            var Button     = document.createElement( "span" );
            var ButtonLink = document.createElement( "a" );
            var ButtonText = document.createTextNode( "[ss]" );

            ButtonLink.setAttribute("href", imgURL);
            ButtonLink.setAttribute("target", "_" + imgURL);
            ButtonLink.appendChild( ButtonText );

            Button.appendChild(document.createTextNode( " " ));
            Button.appendChild(ButtonLink);
            Button.setAttribute( "onmouseover", "mouseOver(event, '" + imgURL + "');");
            Button.setAttribute( "onmouseout", "mouseOut();");

            CurrentSpan.parentNode.insertBefore( Button, CurrentSpan.nextSibling );
            CurrentSpan.style.display="none";

            spanIndex++;
        }
    }
}

addOnloadHook( createScreenshotLinks );
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