Difference between revisions of "MediaWiki:Common.js"

Revision as of 20:27, 22 May 2010

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


/* <h2> Обеспечение функционирования {{tl|RealTitle}} </h2> */

 /** "Technical restrictions" title fix *****************************************
 *
 * Description:
 * Maintainers: [[w:en:User:Interiot|Interiot]], [[w:en:User:Mets501|Mets501]], [[w:en:User:Freakofnurture|Freakofnurture]]
 * Спёрто в [[w:en:MediaWiki:Common.js|Википедии]]
 */
 //
 // 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 [[w:en:C#|C#]] is not an equivalent
 // wikilink, so [[w:en:C Sharp|C Sharp]] doesn't have its main title changed)
 // Likewise for users who have selected the U.K. date format ("1 March") the  
 // titles of day-of-the-year articles will appear in that style. Users with any
 // other date setting are not affected.
 //
 // The function looks for a banner like this: 
 // &lt;div id="RealTitleBanner"&gt;  ... &lt;span id="RealTitle"&gt;title&lt;/span&gt; ... &lt;/div&gt;
 // An element with id=DisableRealTitle disables the function.
 //
 var disableRealTitle = 0; // users can set disableRealTitle = 1 locally to disable.
 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(/[\s_]+/g, " ");      // underscores and multiple spaces to single spaces
                verifyTitle = verifyTitle.replace(/^\s+/, "").replace(/\s+$/, "");        // trim left and right spaces
                verifyTitle = verifyTitle.charAt(0).toUpperCase() + verifyTitle.substring(1, verifyTitle.length);    // uppercase first character
                isPasteable = 1;
                var h1 = document.getElementsByTagName("h1")[0];
                if (h1 && isPasteable) {
                    h1.innerHTML = containsTooMuchHTML ? realTitleText : realTitleHTML;
                    if (!containsTooMuchHTML)
                        realTitleBanner.style.display = "none";
                    var contentSub = document.getElementById("contentSub");
                    if ( contentSub.getElementsByTagName("a") &&
                      contentSub.getElementsByTagName("a")[0].innerHTML == h1.innerHTML )
                        contentSub.style.display = "none";
                }
                document.title = realTitleText + " — Jabber Wiki";
            }
        }
    } catch (e) {
        /* Something went wrong. */
    }
  });
 }
 
 // similar to innerHTML, but only returns the text portions of the insides, excludes HTML
 function pickUpText(aParentElement) {
 var str = "";
 
 function pickUpTextInternal(aElement) {
  var child = aElement.firstChild;
  while (child) {
   if (child.nodeType == 1)     // ELEMENT_NODE 
    pickUpTextInternal(child);
   else if (child.nodeType == 3)   // TEXT_NODE
    str += child.nodeValue;
 
   child = child.nextSibling;
  }
 }
 
  pickUpTextInternal(aParentElement);
  return str;
 }
 
 //fix edit summary prompt for undo
 //this code fixes the fact that the undo function combined with the "no edit summary prompter" causes problems if leaving the
 //edit summary unchanged
 //this was added by [[w:en:User:Deskana|Deskana]], code by [[w:en:User:Tra|Tra]]
 addOnloadHook(function () {
   if (document.location.search.indexOf("undo=") != -1
   && document.getElementsByName('wpAutoSummary')[0]) {
     document.getElementsByName('wpAutoSummary')[0].value='1';
   }
 })


/* <h2> Сворачивающиеся блоки </h2> */

 /** Collapsible tables *********************************************************
  *
  *  Description: Allows tables to be collapsed, showing only the header. See
  *               http://www.mediawiki.org/wiki/Manual:Collapsible_tables.
  *  Maintainers: **MAINTAINERS**
  *  Невозбранно позаимствовано в http://www.mediawiki.org/wiki/Manual:NavFrame
  */
 var autoCollapse = 2;
 var collapseCaption = 'скрыть';
 var expandCaption = 'показать';
 
 function collapseTable( tableIndex ) {
 	var Button = document.getElementById( 'collapseButton' + tableIndex );
 	var Table = document.getElementById( 'collapsibleTable' + tableIndex );
 
 	if ( !Table || !Button ) {
 		return false;
 	}
 
 	var Rows = Table.rows;
 
 	if ( Button.firstChild.data == collapseCaption ) {
 		for ( var i = 1; i < Rows.length; i++ ) {
 			Rows[i].style.display = 'none';
 		}
 		Button.firstChild.data = expandCaption;
 	} else {
 		for ( var i = 1; i < Rows.length; i++ ) {
 			Rows[i].style.display = Rows[0].style.display;
 		}
 		Button.firstChild.data = collapseCaption;
 	}
 }
 
 function createCollapseButtons() {
 	var tableIndex = 0;
 	var NavigationBoxes = new Object();
 	var Tables = document.getElementsByTagName( 'table' );
 
 	for ( var i = 0; i < Tables.length; i++ ) {
 		if ( hasClass( Tables[i], 'collapsible' ) ) {
 			/* only add button and increment count if there is a header row to work with */
 			var HeaderRow = Tables[i].getElementsByTagName( 'tr' )[0];
 			if( !HeaderRow ) continue;
 			var Header = HeaderRow.getElementsByTagName( 'th' )[0];
 			if( !Header ) continue;
 
 			NavigationBoxes[tableIndex] = Tables[i];
 			Tables[i].setAttribute( 'id', 'collapsibleTable' + tableIndex );
 
 			var Button     = document.createElement( 'span' );
 			var ButtonLink = document.createElement( 'a' );
 			var ButtonText = document.createTextNode( collapseCaption );
 
 			Button.className = 'collapseButton'; // Styles are declared in MediaWiki:Common.css
 
 			ButtonLink.style.color = Header.style.color;
 			ButtonLink.setAttribute( 'id', 'collapseButton' + tableIndex );
 			ButtonLink.setAttribute( 'href', "javascript:collapseTable(" + tableIndex + ");" );
 			ButtonLink.appendChild( ButtonText );
 
 			Button.appendChild( document.createTextNode( '[' ) );
 			Button.appendChild( ButtonLink );
 			Button.appendChild( document.createTextNode( ']' ) );
 
 			Header.insertBefore( Button, Header.childNodes[0] );
 			tableIndex++;
 		}
 	}
 
 	for ( var i = 0;  i < tableIndex; i++ ) {
 		if ( hasClass( NavigationBoxes[i], 'collapsed' ) || ( tableIndex >= autoCollapse && hasClass( NavigationBoxes[i], 'autocollapse' ) ) ) {
 			collapseTable( i );
 		}
 	}
 }
 
 addOnloadHook( createCollapseButtons );
 
 /** Test if an element has a certain class **************************************
  *
  * Description: Uses regular expressions and caching for better performance.
  * Maintainers: <nowiki>[[User:Mike Dillon]], [[User:R. Koot]], [[User:SG]]</nowiki>
  */
 
 var hasClass = (function() {
 	var reCache = {};
 	return function( element, className ) {
 		return (reCache[className] ? reCache[className] : (reCache[className] = new RegExp("(?:\\s|^)" + className + "(?:\\s|$)"))).test(element.className);
 	};
 })();