MediaWiki:Common.js

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/* Any JavaScript here will be loaded for all users on every page load. */

/** "Technical restrictions" title fix *****************************************
 *
 *  Description:
 *  Maintainers: User:Interiot, User:Mets501
 */

// For pages that have something like Template:Lowercase, replace the title, but only if it is cut-and-pasteable as a valid wikilink.
//      (for instance iPod's title is updated.  But [[C#]] is not an equivalent wikilink, so [[C Sharp]] doesn't have its main title changed)
//
// The function looks for a banner like this: 
 // <div id="RealTitleBanner">    <!-- div that gets hidden -->
 //   <span id="RealTitle">title</span>
 // </div>
 // An element with id=DisableRealTitle disables the function.
var disableRealTitle = 0;               // users can disable this by making this true from their monobook.js
if (wgIsArticle) {                      // don't display the RealTitle when editing, since it is apparently inconsistent (doesn't show when editing sections, doesn't show when not previewing)
    addOnloadHook(function() {
        try {
                var realTitleBanner = document.getElementById("RealTitleBanner");
                if (realTitleBanner && !document.getElementById("DisableRealTitle") && !disableRealTitle) {
                        var realTitle = document.getElementById("RealTitle");
                        if (realTitle) {
                                var realTitleHTML = realTitle.innerHTML;
                                realTitleText = pickUpText(realTitle);

                                var isPasteable = 0;
                                //var containsHTML = /</.test(realTitleHTML);        // contains ANY HTML
                                var containsTooMuchHTML = /</.test( realTitleHTML.replace(/<\/?(sub|sup|small|big)>/gi, "") ); // contains HTML that will be ignored when cut-n-pasted as a wikilink
                                // calculate whether the title is pasteable
                                var verifyTitle = realTitleText.replace(/^ +/, "");             // trim left spaces
                                verifyTitle = verifyTitle.charAt(0).toUpperCase() + verifyTitle.substring(1, verifyTitle.length);       // uppercase first character

                                // if the namespace prefix is there, remove it on our verification copy.  If it isn't there, add it to the original realValue copy.
                                if (wgNamespaceNumber != 0) {
                                        if (wgCanonicalNamespace == verifyTitle.substr(0, wgCanonicalNamespace.length).replace(/ /g, "_") && verifyTitle.charAt(wgCanonicalNamespace.length) == ":") {
                                                verifyTitle = verifyTitle.substr(wgCanonicalNamespace.length + 1);
                                        } else {
                                                realTitleText = wgCanonicalNamespace.replace(/_/g, " ") + ":" + realTitleText;
                                                realTitleHTML = wgCanonicalNamespace.replace(/_/g, " ") + ":" + realTitleHTML;
                                        }
                                }

                                // verify whether wgTitle matches
                                verifyTitle = verifyTitle.replace(/^ +/, "").replace(/ +$/, "");                // trim left and right spaces
                                verifyTitle = verifyTitle.replace(/_/g, " ");           // underscores to spaces
                                verifyTitle = verifyTitle.charAt(0).toUpperCase() + verifyTitle.substring(1, verifyTitle.length);       // uppercase first character
                                isPasteable = (verifyTitle == wgTitle);

                                var h1 = document.getElementsByTagName("h1")[0];
                                if (h1 && isPasteable) {
                                        h1.innerHTML = containsTooMuchHTML ? realTitleText : realTitleHTML;
                                        if (!containsTooMuchHTML)
                                                realTitleBanner.style.display = "none";
                                }
                                document.title = realTitleText + " - Wikipedia, the free encyclopedia";
                        }
                }
        } catch (e) {
                /* Something went wrong. */
        }
    });
}