Github Reply Comments

Easy reply to Github comments

Versão de: 11/02/2018. Veja: a última versão.

Você precisará instalar uma extensão como Tampermonkey, Greasemonkey ou Violentmonkey para instalar este script.

Você precisará instalar uma extensão como Tampermonkey ou Violentmonkey para instalar este script.

Você precisará instalar uma extensão como Tampermonkey ou Violentmonkey para instalar este script.

Você precisará instalar uma extensão como Tampermonkey ou Userscripts para instalar este script.

Você precisará instalar uma extensão como o Tampermonkey para instalar este script.

Você precisará instalar um gerenciador de scripts de usuário para instalar este script.

(Eu já tenho um gerenciador de scripts de usuário, me deixe instalá-lo!)

Você precisará instalar uma extensão como o Stylus para instalar este estilo.

Você precisará instalar uma extensão como o Stylus para instalar este estilo.

Você precisará instalar uma extensão como o Stylus para instalar este estilo.

Você precisará instalar um gerenciador de estilos de usuário para instalar este estilo.

Você precisará instalar um gerenciador de estilos de usuário para instalar este estilo.

Você precisará instalar um gerenciador de estilos de usuário para instalar este estilo.

(Eu já possuo um gerenciador de estilos de usuário, me deixar fazer a instalação!)

// ==UserScript==
// @name        Github Reply Comments
// @namespace   https://github.com/jerone/UserScripts
// @description Easy reply to Github comments
// @author      jerone
// @copyright   2016+, jerone (http://jeroenvanwarmerdam.nl)
// @license     GPL-3.0
// @homepage    https://github.com/jerone/UserScripts/tree/master/Github_Reply_Comments
// @homepageURL https://github.com/jerone/UserScripts/tree/master/Github_Reply_Comments
// @supportURL  https://github.com/jerone/UserScripts/issues
// @contributionURL https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=VCYMHWQ7ZMBKW
// @version     0.1.0
// @icon        https://assets-cdn.github.com/pinned-octocat.svg
// @grant       none
// @include     https://github.com/*
// @include     https://gist.github.com/*
// ==/UserScript==

(function() {

    String.format = function(string) {
        var args = Array.prototype.slice.call(arguments, 1, arguments.length);
        return string.replace(/{(\d+)}/g, function(match, number) {
            return typeof args[number] !== "undefined" ? args[number] : match;
        });
    };

    /*
     * to-markdown - an HTML to Markdown converter
     * Copyright 2011, Dom Christie
     * Licenced under the MIT licence
     * Source: https://github.com/domchristie/to-markdown
     *
     * Code is altered:
     * - Added task list support: https://github.com/domchristie/to-markdown/pull/62
     * - He dependecy is removed
     */
    var toMarkdown = function(string) {

        var ELEMENTS = [{
            patterns: 'p',
            replacement: function(str, attrs, innerHTML) {
                return innerHTML ? '\n\n' + innerHTML + '\n' : '';
            }
        }, {
            patterns: 'br',
            type: 'void',
            replacement: '  \n'
        }, {
            patterns: 'h([1-6])',
            replacement: function(str, hLevel, attrs, innerHTML) {
                var hPrefix = '';
                for (var i = 0; i < hLevel; i++) {
                    hPrefix += '#';
                }
                return '\n\n' + hPrefix + ' ' + innerHTML + '\n';
            }
        }, {
            patterns: 'hr',
            type: 'void',
            replacement: '\n\n* * *\n'
        }, {
            patterns: 'a',
            replacement: function(str, attrs, innerHTML) {
                var href = attrs.match(attrRegExp('href')),
                    title = attrs.match(attrRegExp('title'));
                return href ? '[' + innerHTML + ']' + '(' + href[1] + (title && title[1] ? ' "' + title[1] + '"' : '') + ')' : str;
            }
        }, {
            patterns: ['b', 'strong'],
            replacement: function(str, attrs, innerHTML) {
                return innerHTML ? '**' + innerHTML + '**' : '';
            }
        }, {
            patterns: ['i', 'em'],
            replacement: function(str, attrs, innerHTML) {
                return innerHTML ? '_' + innerHTML + '_' : '';
            }
        }, {
            patterns: 'code',
            replacement: function(str, attrs, innerHTML) {
                return innerHTML ? '`' + innerHTML + '`' : '';
            }
        }, {
            patterns: 'img',
            type: 'void',
            replacement: function(str, attrs) {
                var src = attrs.match(attrRegExp('src')),
                    alt = attrs.match(attrRegExp('alt')),
                    title = attrs.match(attrRegExp('title'));
                return src ? '![' + (alt && alt[1] ? alt[1] : '') + ']' + '(' + src[1] + (title && title[1] ? ' "' + title[1] + '"' : '') + ')' : '';
            }
        }];

        for (var i = 0, len = ELEMENTS.length; i < len; i++) {
            if (typeof ELEMENTS[i].patterns === 'string') {
                string = replaceEls(string, {
                    tag: ELEMENTS[i].patterns,
                    replacement: ELEMENTS[i].replacement,
                    type: ELEMENTS[i].type
                });
            } else {
                for (var j = 0, pLen = ELEMENTS[i].patterns.length; j < pLen; j++) {
                    string = replaceEls(string, {
                        tag: ELEMENTS[i].patterns[j],
                        replacement: ELEMENTS[i].replacement,
                        type: ELEMENTS[i].type
                    });
                }
            }
        }

        function replaceEls(html, elProperties) {
            var pattern = elProperties.type === 'void' ? '<' + elProperties.tag + '\\b([^>]*)\\/?>' : '<' + elProperties.tag + '\\b([^>]*)>([\\s\\S]*?)<\\/' + elProperties.tag + '>',
                regex = new RegExp(pattern, 'gi'),
                markdown = '';
            if (typeof elProperties.replacement === 'string') {
                markdown = html.replace(regex, elProperties.replacement);
            } else {
                markdown = html.replace(regex, function(str, p1, p2, p3) {
                    return elProperties.replacement.call(this, str, p1, p2, p3);
                });
            }
            return markdown;
        }

        function attrRegExp(attr) {
            return new RegExp(attr + '\\s*=\\s*["\']?([^"\']*)["\']?', 'i');
        }

        // Pre code blocks

        string = string.replace(/<pre\b[^>]*>`([\s\S]*?)`<\/pre>/gi, function(str, innerHTML) {
            var text = innerHTML;
            text = text.replace(/^\t+/g, '  '); // convert tabs to spaces (you know it makes sense)
            text = text.replace(/\n/g, '\n    ');
            return '\n\n    ' + text + '\n';
        });

        // Lists

        // Escape numbers that could trigger an ol
        // If there are more than three spaces before the code, it would be in a pre tag
        // Make sure we are escaping the period not matching any character
        string = string.replace(/^(\s{0,3}\d+)\. /g, '$1\\. ');

        // Converts lists that have no child lists (of same type) first, then works its way up
        var noChildrenRegex = /<(ul|ol)\b[^>]*>(?:(?!<ul|<ol)[\s\S])*?<\/\1>/gi;
        while (string.match(noChildrenRegex)) {
            string = string.replace(noChildrenRegex, replaceLists);
        }

        function replaceLists(html) {

            html = html.replace(/<(ul|ol)\b[^>]*>([\s\S]*?)<\/\1>/gi, function(str, listType, innerHTML) {
                var lis = innerHTML.split('</li>');
                lis.splice(lis.length - 1, 1);

                for (i = 0, len = lis.length; i < len; i++) {
                    if (lis[i]) {
                        var prefix = (listType === 'ol') ? (i + 1) + ".  " : "*   ";
                        lis[i] = lis[i].replace(/\s*<li[^>]*>([\s\S]*)/i, function(str, innerHTML) {
                            innerHTML = innerHTML.replace(/\s*<input[^>]*?(checked[^>]*)?type=['"]?checkbox['"]?[^>]>/, function(inputStr, checked) {
                                return checked ? '[X]' : '[ ]';
                            });
                            innerHTML = innerHTML.replace(/^\s+/, '');
                            innerHTML = innerHTML.replace(/\n\n/g, '\n\n    ');
                            // indent nested lists
                            innerHTML = innerHTML.replace(/\n([ ]*)+(\*|\d+\.) /g, '\n$1    $2 ');
                            return prefix + innerHTML;
                        });
                    }
                    lis[i] = lis[i].replace(/(.) +$/m, '$1');
                }
                return lis.join('\n');
            });

            return '\n\n' + html.replace(/[ \t]+\n|\s+$/g, '');
        }

        // Blockquotes
        var deepest = /<blockquote\b[^>]*>((?:(?!<blockquote)[\s\S])*?)<\/blockquote>/gi;
        while (string.match(deepest)) {
            string = string.replace(deepest, replaceBlockquotes);
        }

        function replaceBlockquotes(html) {
            html = html.replace(/<blockquote\b[^>]*>([\s\S]*?)<\/blockquote>/gi, function(str, inner) {
                inner = inner.replace(/^\s+|\s+$/g, '');
                inner = cleanUp(inner);
                inner = inner.replace(/^/gm, '> ');
                inner = inner.replace(/^(>([ \t]{2,}>)+)/gm, '> >');
                return inner;
            });
            return html;
        }

        function cleanUp(string) {
            string = string.replace(/^[\t\r\n]+|[\t\r\n]+$/g, ''); // trim leading/trailing whitespace
            string = string.replace(/\n\s+\n/g, '\n\n');
            string = string.replace(/\n{3,}/g, '\n\n'); // limit consecutive linebreaks to 2
            return string;
        }

        return cleanUp(string);
    };

    function getCommentTextarea(replyBtn) {
        var newComment = replyBtn;
        while (newComment && !newComment.classList.contains('js-quote-selection-container')) {
            newComment = newComment.parentNode;
        }
        if (newComment) {
            var lastElementChild = newComment.lastElementChild;
            lastElementChild.classList.add('open');
            newComment = lastElementChild.querySelector(".comment-form-textarea");
        } else {
            newComment = document.querySelector(".timeline-new-comment .comment-form-textarea");
        }
        return newComment;
    }

    function addReplyButtons() {
        Array.prototype.forEach.call(document.querySelectorAll(".comment"), function(comment) {
            var oldReply = comment.querySelector(".GithubReplyComments, .GithubCommentEnhancerReply");
            if (oldReply) {
                oldReply.parentNode.removeChild(oldReply);
            }

            var header = comment.querySelector(".timeline-comment-header"),
                actions = comment.querySelector(".timeline-comment-actions");

            if (!header) {
                return;
            }
            if (!actions) {
                actions = document.createElement("div");
                actions.classList.add("timeline-comment-actions");
                header.insertBefore(actions, header.firstElementChild);
            }

            var reply = document.createElement("button");
            reply.setAttribute("type", "button");
            reply.setAttribute("title", "Reply to this comment");
            reply.setAttribute("aria-label", "Reply to this comment");
            reply.classList.add("GithubReplyComments", "btn-link", "timeline-comment-action", "tooltipped", "tooltipped-ne");
            reply.addEventListener("click", function(e) {
                e.preventDefault();

                var newComment = getCommentTextarea(this);

                var timestamp = comment.querySelector(".timestamp");

                var commentText = comment.querySelector(".comment-form-textarea");
                if (commentText) {
                    commentText = commentText.value;
                } else {
                    commentText = toMarkdown(comment.querySelector(".comment-body").innerHTML);
                }
                commentText = commentText.trim().split("\n").map(function(line) {
                    return "> " + line;
                }).join("\n");

                var text = newComment.value.length > 0 ? "\n" : "";
                text += String.format('[**@{0}**]({1}/{0}) commented on [{2}]({3} "{4} - Replied by Github Reply Comments"):\n{5}\n\n',
                    comment.querySelector(".author").textContent,
                    location.origin,
                    timestamp.firstElementChild.getAttribute("title"),
                    timestamp.href,
                    timestamp.firstElementChild.getAttribute("datetime"),
                    commentText);

                newComment.value += text;
                newComment.setSelectionRange(newComment.value.length, newComment.value.length);
                newComment.focus();
            });

            var svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
            svg.classList.add("octicon", "octicon-mail-reply");
            svg.setAttribute("height", "16");
            svg.setAttribute("width", "16");
            reply.appendChild(svg);
            var path = document.createElementNS("http://www.w3.org/2000/svg", "path");
            path.setAttribute("d", "M6 2.5l-6 4.5 6 4.5v-3c1.73 0 5.14 0.95 6 4.38 0-4.55-3.06-7.05-6-7.38v-3z");
            svg.appendChild(path);

            actions.appendChild(reply);
        });
    }

    // init;
    addReplyButtons();

    // on pjax;
    document.addEventListener('pjax:end', addReplyButtons);

})();