User:Splarka/cmlhider.js

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/* Category Member Link Hider script, version [0.0.1]
Originally from: http://en.wikipedia.org/wiki/User:Splarka/cmlhider.js
 
On Prefixindex, will prompt for a category name, and hide all links found to pages in that category.
 
Notes:
* VERY slow, could be optimized probably.
* Limited to categories with 500 members, a query-continue would be needed for longer ones.
* Test version.
*/
 
if(wgCanonicalSpecialPageName == 'Prefixindex') addOnloadHook(hideCatMemLinksButton)
function hideCatMemLinksButton() {
  addPortletLink('p-tb','javascript:hideCML()','Hide links','t-cml','Hide links to articles in a specified category');
}
 
function hideCML() {
  var cat = prompt('Enter a category name','Category:NA-Class articles');
  if(cat == '' || !cat) return;
  var cml = document.getElementById('t-cml');
  if(cml) {
    var prog = document.createElement('img');
    prog.setAttribute('id','cml-prog');
    prog.setAttribute('src',stylepath + '/common/images/spinner.gif');
    cml.appendChild(prog);
  }
  var url = wgServer + wgScriptPath + '/api.php?action=query&format=json&callback=hideCMLCB&list=categorymembers&cmnamespace=14&cmlimit=500&cmtitle=' + cat;
  var scriptElem = document.createElement('script');
  scriptElem.setAttribute('src',url);
  scriptElem.setAttribute('type','text/javascript');
  document.getElementsByTagName('head')[0].appendChild(scriptElem);
}
 
function hideCMLCB(obj) {
  var links = (document.getElementById('content')) ? document.getElementById('content').getElementsByTagName('a') : document.getElementById('mw_content').getElementsByTagName('a')
  if(!obj['query'] || !obj['query']['categorymembers']) return
  for(var i in obj['query']['categorymembers']) {
    var pg = obj['query']['categorymembers'][i]['title'];
    pg = wgArticlePath.replace(/\$1/,'') + pg.replace(/ /ig,'_');
    for(var j=0;j<links.length;j++) {
      if(links[j].href.replace(wgServer,'') == pg) {
        links[j].style.visibility = 'hidden';
      }
    }
  }
  var cml = document.getElementById('t-cml');
  if(cml) document.getElementById('cml-prog').style.display = 'none'
}