Trac attachment helper

Trac-Wiki-Add-attachment-links.user.js

// ==UserScript==
// @name         Trac: Add attachment links
// @namespace    Cyclodex
// @version      0.7
// @description  Add buttons next to attachments for using them directly as link or image in the comment. Also the image buttton will take the latest added attachment.
// @author       Cyclodex <cyclodex@nothing.ch>
// @match        https://*/*trac/ticket/*
// @grant        none
// ==/UserScript==
(function() {
    'use strict';

    // Add attachment
    function addAttachment(file) {
        var cursorPos = $('#comment').prop('selectionStart');
        var v = $('#comment').val();
        var textBefore = v.substring(0,  cursorPos );
        var textAfter  = v.substring( cursorPos, v.length );
        $('#comment').val( textBefore + file + textAfter );
        //console.log('adding file: ' + file );
    }

    // Add new buttons
    function addButtons( selector ) {
        // add a button to every rawlink
        selector = typeof selector !== 'undefined' ? selector : '#changelog';
        console.log(selector);
        $( selector ).find( ".trac-rawlink" ).each(function( index ) {
            var attachment = $( this ).prev().text();
            $( this ).after( "<button class='link'>Use as link</button>" + "<button class='image'>Use as image</button>");
            $( this ).nextAll('button.link').click(  function(){
                var link = '[[attachment:' + attachment + ']]';
                addAttachment(link);
            });
            $( this ).nextAll('button.image').click(  function(){
                var image = '[[Image(' + attachment + ')]]';
                addAttachment(image);
            });
        });
    }


    // When adding an image, instead of an empty tag, this takes the latest added attachment path as well
    $('.wikitoolbar').find('#img').click(  function(){
        var lastAttachment = jQuery('.attachments').find('dt:last-of-type').find('a:first-child').text();
        addAttachment(lastAttachment);
    });

    // add button on initial call already
    addButtons('#changelog');
    addButtons('#attachments');

    // add button when ajax request was done (otherwise we loose the buttons)
    $( document ).ajaxComplete(function() {
        addButtons( '#changelog' );
    });
})();