Utilisateur:François Melchior/MediaWiki:Gadget-AdvancedTitle.js

/*

 Code for AdvancedTitle gadget. Inspirated (and similar, but with added functionalities)
  by TitreHierarchique and TitreDeluxe, written by DavidL and Tavernier (wikibooks:fr).

 License: GNU LGPL or Apache 2.0

 Author(s): François Melchior

 Configuration variables:
  * advtitleNamespaces = array of integers
       list of namespace indexes where the script will modify subpage titles (default: only mainspace).
  * advtitleSlashInName = regexp
       matches (sub-)pagenames that may contain a slash (default: none).
  * advtitleSeparator = string
       used as separator between the parts of parent's title (default: " / ").
  * advtitleAllowReplace = boolean
       if true, will use the content of element #customPageTitle (if present) as (sub-)page name. (default: false)
*/

$(document).ready( function ()
  {
  var firstHeadingElement = $('#firstHeading')
  if(!firstHeadingElement.length)
    {
    firstHeadingElement = $('h1:first') //For skins not defining #firstHeading.
    if(!firstHeadingElement.length) return
    }
  
  //This must be changed if changed in MediaWiki
  var dirAttr = firstHeadingElement[0].firstChild.dir //Easier without jQuery.
  if(dirAttr) dirAttr = ' dir="' + dirAttr + '"'
  
  var titleInThePageElement = $('#titleInThePage')
  if(titleInThePageElement.length)
    {
    firstHeadingElement.css('display', 'none') //not .hide() - no need to save old value.
    firstHeadingElement[0].id = 'advtitleOldFirstHeading' //Easier without jQuery.
    titleInThePageElement[0].id = 'firstHeading'
    titleInThePageElement.addClass('firstHeading')
    }
  else titleInThePageElement = null
  
  var customPageSubtitleElement = $('#customPageSubtitle'), customPageSubtitle
  if(customPageSubtitleElement.length)
    {
    customPageSubtitle = mw.html.escape(customPageSubtitleElement[0].title)
                         || $.trim(customPageSubtitleElement.html())
              //Easier to get title attr without jQuery.
    customPageSubtitleElement.css('display', 'none') //not .hide() - no need to save old value.
    }
  customPageSubtitleElement = null //Not needed anymore.
  
  var customPageTitle = ''
  if(window.advtitleAllowReplace)
    {
    var customPageTitleElement = $('#customPageTitle')
    if(customPageTitleElement.length)
      {
      customPageTitle = mw.html.escape(customPageTitleElement[0].title)
                        || $.trim(customPageTitleElement.html())
      customPageTitleElement.css('display', 'none')
      }
    customPageTitleElement = null //Not needed anymore.
    }

  do
    {
    if(mw.config.get('wgAction') != 'view') break
    if($.inArray(mw.config.get('wgNamespaceNumber'), window.advtitleNamespaces || [ 0 ]) < 0) break
    
    var subpagesElements = mw.util.$content.find('.subpages')
    
    if(!subpagesElements.length) break //Not in a subpage, or in a namespace that
                                       // does not recognize subpages.
    
    if(window.advtitleSeparator == undefined) advtitleSeparator = ' / '
    
    var fullPageTitle = $.trim(firstHeadingElement.text())
    var chunkedPageTitle = fullPageTitle.split('/')
    
    //Restore pagenames that contain a slash
    if(window.advtitleSlashInName != undefined)
      for(var i = chunkedPageTitle.length - 1, previousChunk = chunkedPageTitle[i]; i--; )
        {
        var reglued = chunkedPageTitle[i] + '/' + previousChunk
        previousChunk = chunkedPageTitle[i]
        if(advtitleSlashInName.test(reglued))
          chunkedPageTitle.splice(i, 2, chunkedPageTitle[i] + '/' + chunkedPageTitle[i+1])
                    //Does not use 'reglued', in case 2 (or more) slashs in name
        }
    
    if(chunkedPageTitle.length < 2) //Not a subpage anymore!
      {
      subpagesElements.css('display', 'none')
      break
      }
    
    if(customPageTitle) chunkedPageTitle[chunkedPageTitle.length - 1] = customPageTitle
    
    newTitleHtml = '<span class="advtitleLastSeparator">' + advtitleSeparator +
                   '</span></div><div class="advtitlePage"' + dirAttr + '>' + chunkedPageTitle.pop() +
                   '</div>'
    while(chunkedPageTitle.length)
      {
      var part = '<a href="' + mw.util.getUrl(chunkedPageTitle.join('/')) + '">'
      part += chunkedPageTitle.pop() + '</a>'
      newTitleHtml = (chunkedPageTitle.length ? '<span>' + advtitleSeparator + '</span>' : '') +
                     part + newTitleHtml
      }
    newTitleHtml = '<div class="advtitleParents"' + dirAttr + '>' + newTitleHtml +
                   (customPageSubtitle ? '<div class="advtitleSubtitle"' + dirAttr + '>' +
                                         customPageSubtitle + '</div>' : '')
    
    if(titleInThePageElement)
      {
      firstHeadingElement = titleInThePageElement
      subpagesElements.addClass('advtitleSmallTitle')
      }
    
    //Finaly modify the DOM.
    subpagesElements.html(fullPageTitle)
    firstHeadingElement.html(newTitleHtml)
    
    return
    } while(false)
  
  // If we are here, then we are not in a subpage.
  
  if(titleInThePageElement)
    {
    // Move title at the new place.
    titleInThePageElement.append(customPageTitle || firstHeadingElement.contents())
    
    // Add a small title around the old one.
    var smallTitle = '<span class="advtitleSmallTitle">' +
                     $.trim(titleInThePageElement.text()) + '</span>'
    var contentSubElement = $('#contentSub')
    if(contentSubElement.length)
      contentSubElement.prepend(smallTitle)
    else firstHeadingElement.after('<div id="contentSub">' + smallTitle + '</div>')
    
    // Let following step not fail
    firstHeadingElement = titleInThePageElement
    }
  else if(customPageTitle) firstHeadingElement.html(customPageTitle)
  
  if(customPageSubtitle)
    firstHeadingElement.append('<div class="advtitleSubtitle"' + dirAttr + '>' +
                               customPageSubtitle + '</div>')
  
  });