Fossil

      D.disable(ajaxState.toDisable);
    }
  };
  F.fetch.aftersend = function(){
    if(0===--ajaxState.count){
      D.removeClass(document.body, 'waiting');
      D.enable(ajaxState.toDisable);
      delete ajaxState.toDisable /* required to avoid enable/disable
                                    race condition with the save button */;
    }
  };

  F.onPageLoad(function() {
    document.body.classList.add('wikiedit');
    P.base = {tag: E('base'), wikiUrl: F.repoUrl('wiki')};
    P.base.originalHref = P.base.tag.href;
    P.tabs = new fossil.TabManager('#wikiedit-tabs');
    P.e = { /* various DOM elements we work with... */
      taEditor: E('#wikiedit-content-editor'),
//      btnCommit: E("#wikiedit-btn-commit"),
      btnReload: E("#wikiedit-tab-content button.wikiedit-content-reload"),
      btnSave: E("button.wikiedit-save"),
      selectMimetype: E('select[name=mimetype]'),
      selectFontSizeWrap: E('#select-font-size'),
//      selectDiffWS:  E('select[name=diff_ws]'),
      cbAutoPreview: E('#cb-preview-autoupdate > input[type=checkbox]'),
      previewTarget: E('#wikiedit-tab-preview-wrapper'),
      diffTarget: E('#wikiedit-tab-diff-wrapper'),
      attachmentWrapper: E("#wikiedit-attachments"),
      tabs:{
        pageList: E('#wikiedit-tab-pages'),
        content: E('#wikiedit-tab-content'),
        preview: E('#wikiedit-tab-preview'),
        diff: E('#wikiedit-tab-diff'),
        misc: E('#wikiedit-tab-misc')
        //commit: E('#wikiedit-tab-commit')
      }
    };

    P.tabs.e.container.insertBefore(
      /* Move the status bar between the tab buttons and
         tab panels. Seems to be the best fit in terms of
         functionality and visibility. */
      E('#fossil-status-bar'), P.tabs.e.tabs
    );

    P.tabs.addEventListener(
      /* Set up some before-switch-to tab event tasks... */
      'before-switch-to', function(ev){
        if(ev.detail===P.e.tabs.preview){
          P.baseHrefForWiki();
          P.updateSaveButton();
          if(P.previewNeedsUpdate && P.e.cbAutoPreview.checked) P.preview();
        }else if(ev.detail===P.e.tabs.diff){
          /* Work around a weird bug where the page gets wider than
             the window when the diff tab is NOT in view and the
             current SBS diff widget is wider than the window. When
             the diff IS in view then CSS overflow magically reduces
             the page size again. Weird. Maybe FF-specific. Note that
             this weirdness happens even though P.e.diffTarget's parent
             is hidden (and therefore P.e.diffTarget is also hidden).
          */
          D.removeClass(P.e.diffTarget, 'hidden');
        }else if(ev.detail===P.e.tabs.misc){

          P.updateAttachmentView();






        }
      }
    );
    P.tabs.addEventListener(
      /* Set up auto-refresh of the preview tab... */
      'before-switch-from', function(ev){
        if(ev.detail===P.e.tabs.preview){

      title.push('(no page loaded)');
    }
    title = title.join(' ');
    f.titleElement.innerText = title;
    f.pageTitleHeader.innerText = title;
    return this;
  };

  /**
     Change the save button depending on whether we have stuff to save
     or not.
  */
  P.updateSaveButton = function(){
    if(!this.winfo || !this.getStashedWinfo(this.winfo)){
      D.disable(this.e.btnSave).innerText =
        "There are no changes to save";
    }else{
      D.enable(this.e.btnSave).innerText = "Save changes";
    }
    return this;
  };

  /** Updates attachment-related links and returns this. */
  P.updateAttachmentView = function(){
    const wrapper = P.e.attachmentWrapper;
    D.clearElement(wrapper);
    const ul = D.ul();
    D.append(wrapper, ul);