Fossil

         repository-relative path which responds with an audio
         file). Pass a falsy value to disable audio alerts. Returns
         this.
      */
      setNewMessageSound: function f(uri){
        delete this.playNewMessageSound.audio;
        this.playNewMessageSound.uri = uri;
        this.settings.set('audible-alert', uri);
        return this;
      }
    };
    F.fetch.beforesend = ()=>cs.ajaxStart();
    F.fetch.aftersend = ()=>cs.ajaxEnd();
    cs.e.inputCurrent = cs.e.inputSingle;
    /* Install default settings... */

      /* Disabled per chatroom discussion: selection list of audio files for
         chat notification. */
      settingsOps.selectSound = D.addClass(D.div(), 'menu-entry');
      const selectSound = D.select();
      D.append(settingsOps.selectSound,
               D.append(D.span(),"Audio alert"),
               selectSound);

      D.option(selectSound, "", "(no audio)");
      const firstSoundIndex = selectSound.options.length;
      F.config.chat.alerts.forEach(function(a){
        D.option(selectSound, a);
      });
      if(true===Chat.settings.getBool('audible-alert')){
        selectSound.selectedIndex = firstSoundIndex;
      }else{
        selectSound.value = Chat.settings.get('audible-alert','');
        if(selectSound.selectedIndex<0){
          /*Missing file - removed after this setting was applied. Fall back
            to the first sound in the list. */
          selectSound.selectedIndex = firstSoundIndex;
        }
      }
      selectSound.addEventListener('change',function(){
        const v = this.value;
        Chat.setNewMessageSound(v);
        F.toast.message("Audio notifications "+(v ? "enabled" : "disabled")+".");
        if(v) setTimeout(()=>Chat.playNewMessageSound(), 0);
      }, false);
      Chat.setNewMessageSound(selectSound.value);
    }/*audio notification config*/
    /**

      }
      D.append(line, btn);
      D.append(optionsMenu, line);
    });
    if(settingsOps.selectSound){
      D.append(optionsMenu, settingsOps.selectSound);
    }
    //settingsButton.click()/*for for development*/;
  })()/*#chat-settings-button setup*/;
  
  /** Callback for poll() to inject new content into the page.  jx ==
      the response from /chat-poll. If atEnd is true, the message is
      appended to the end of the chat list (for loading older
      messages), else the beginning (the default). */
  const newcontent = function f(jx,atEnd){

  flex-direction: column;
  overflow: auto;
}
body.chat #chat-config #chat-config-options .menu-entry {
  display: flex;
  align-items: center;
  flex-direction: row;
  flex-wrap: wrap;
  padding: 1em;
}
body.chat #chat-config #chat-config-options .menu-entry > *:first-child {
  margin-right: 1em;
}
input[type="checkbox"].diff-toggle {
  float: right;

     block HTML markup (such as <table>) in most cases.  Only content
     of <pre> and <script> is passed through verbatim.
  *  The [/help?cmd=wiki|wiki list command] no longer lists "deleted"
     pages by default. Use the new <tt>--all</tt> option to include deleted
     pages in the output.
  *  The [/help?cmd=all|fossil all git status] command only shows reports for
     the subset of repositories that have a configured Git export.
  *  Enhanced the [/help?cmd=/chat|/chat page] configuration and added the ability
     for a repository administrator to [./chat.md#notifications|extend the
     selection of notification sounds via unversioned files].

<h2 id='v2_16'>Changes for Version 2.16 (2021-07-02)</h2>
  *  <b>Security:</b> Fix the client-side TLS so that it verifies that the
     server hostname matches its certificate.
  *  The default "ssh" command on Windows is changed to "ssh" instead of the
     legacy "plink", as ssh is now generally available on Windows systems.
     Installations that still need to use the legacy "plink" can make that

at the top of the message and clicking the button which appears. Such
deletions are local-only, and the messages will reappear if the page
is reloaded. The user who posted a given message, or any Admin users,
may additionally choose to globally delete a message from the chat
record, which deletes it not only from their own browser but also
propagates the removal to all connected clients the next time they
poll for new messages.

### <a id='notifications'></a>Customizing New-message Notification Sounds

By default, the list of new-message notification sounds is limited to
a few built in to the fossil binary. In addition, any
[unversioned files](./unvers.wiki) named `alert-sounds/*.{mp3,wav,ogg}`
will be included in that list. To switch sounds, tap the "settings"
button.

## Implementation Details

*You do not need to understand how Fossil chat works in order to use it.
But many developers prefer to know how their tools work.
This section is provided for the benefit of those curious developers.*