User:Tommyang/Script/CurRevisionId.js

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/* 
a user script that displays various URLs of current page next to page title
Original version by User:Kegns [https://zh.wikipedia.org/?oldid=30618120]
Click to select the URL for copying and to switch between article URL (?curid) and current revision URL (?oldid)
*/
if (mw.config.get('wgCurRevisionId') != 0) {
  var i = 1;
  var articleURL = `https:${mw.config.get('wgServer')}/?curid=${mw.config.get('wgArticleId')}`;
  var revisionURL = `https:${mw.config.get('wgServer')}/?oldid=${mw.config.get('wgCurRevisionId')}`;
  $('h1#firstHeading span[dir=auto]').text(mw.config.get('wgPageName'));
  $('h1#firstHeading').append($("<input />").attr({
    "id": "pageurls",
    "type": "url",
    "value": articleURL,
    "size": articleURL.length,
    "readonly": "true",
  }).css({
    "background-color": "transparent",
    "margin-left": "1em",
    "border-style": "none",
    "color": "rgba(0, 0, 0, 0.6)",
  }));
  $('#pageurls').mousedown(function () {
      i = (i + 1) % 2;
      switch (i) {
      case 0:
        $('#pageurls').attr({
          "value": articleURL,
          "size": articleURL.length
        });
        break;
      case 1:
        $('#pageurls').attr({
          "value": revisionURL,
          "size": revisionURL.length
        });
        break;
      }
    }
  ).mouseup(function () {
    this.select();
  });
}