546 lines
21 KiB
JavaScript
546 lines
21 KiB
JavaScript
|
/*global document,P,sessionStorage,location*/
|
||
|
|
var talaria = (function (P) {
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Default configuration
|
||
|
|
*/
|
||
|
|
var CONFIG = {},
|
||
|
|
DEFAULTS = {
|
||
|
|
COMMENTABLE_CONTENT_PATH_PREFIX: '_posts/',
|
||
|
|
CONTENT_SUFFIX: '.md',
|
||
|
|
CACHE_TIMEOUT: 60 * 60 * 1000, // cache github data for 1 hour
|
||
|
|
PAGINATION_SCHEME: /\/post\d+\//,
|
||
|
|
LOCAL_STORAGE_SUPPORTED: true,
|
||
|
|
PERMALINK_IDENTIFIER: 'a.permalink',
|
||
|
|
PERMALINK_STYLE: /[\.\w\-_:\/]+\/(\d+)\/(\d+)\/(\d+)\/([\w\-\.]+)$/
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Utilities
|
||
|
|
*/
|
||
|
|
var setPermalinkRegex = function() {
|
||
|
|
switch (CONFIG.PERMALINK_STYLE) {
|
||
|
|
case 'pretty':
|
||
|
|
return /[\.\w\-_:\/]+\/(\d+)\/(\d+)\/(\d+)\/([\w\-\.]+)\/$/;
|
||
|
|
case 'date':
|
||
|
|
return /[\.\w\-_:\/]+\/(\d+)\/(\d+)\/(\d+)\/([\w\-\.]+)\.html$/;
|
||
|
|
case 'none':
|
||
|
|
if (!CONFIG.USE_GISTS) {
|
||
|
|
throw new Error('When using commit-based comments,' +
|
||
|
|
' talaria requires the use of' +
|
||
|
|
' permalinks that include the date' +
|
||
|
|
' of the post');
|
||
|
|
}
|
||
|
|
return /[\.\w\-_:\/]+\/([\w\-\.]+)\.html$/;
|
||
|
|
default: return CONFIG.PERMALINK_STYLE;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
var extrapolatePathFromPermalink = function(permalinkUrl) {
|
||
|
|
return permalinkUrl.replace(CONFIG.PERMALINK_STYLE,
|
||
|
|
CONFIG.COMMENTABLE_CONTENT_PATH_PREFIX +
|
||
|
|
'$1-$2-$3-$4' + CONFIG.CONTENT_SUFFIX);
|
||
|
|
};
|
||
|
|
|
||
|
|
var shortenCommitId = function(commitId) {
|
||
|
|
return commitId.substr(0, 7);
|
||
|
|
};
|
||
|
|
|
||
|
|
var localStorageSupported = function() {
|
||
|
|
try {
|
||
|
|
sessionStorage.setItem('dummy', 'dummy');
|
||
|
|
sessionStorage.removeItem('dummy');
|
||
|
|
return true;
|
||
|
|
} catch (e) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
var isStale = function(cachedCommentData) {
|
||
|
|
return (new Date().getTime() -
|
||
|
|
cachedCommentData.timestamp) > CONFIG.CACHE_TIMEOUT;
|
||
|
|
};
|
||
|
|
|
||
|
|
var maybeGetCachedVersion = function(url) {
|
||
|
|
var cache;
|
||
|
|
if (CONFIG.LOCAL_STORAGE_SUPPORTED) {
|
||
|
|
cache = sessionStorage.getItem(url);
|
||
|
|
if (cache) {
|
||
|
|
cache = JSON.parse(cache);
|
||
|
|
if (!isStale(cache)) {
|
||
|
|
return P.resolve(cache.commentData);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return P.reject('cache miss');
|
||
|
|
};
|
||
|
|
|
||
|
|
var cacheCommentData = function(key, data) {
|
||
|
|
if (CONFIG.LOCAL_STORAGE_SUPPORTED) {
|
||
|
|
sessionStorage.setItem(key, JSON.stringify({
|
||
|
|
timestamp: new Date().getTime(),
|
||
|
|
commentData: data
|
||
|
|
}));
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
var latest = function(commits) {
|
||
|
|
return commits.length > 0 ? commits.sort(function (a, b) {
|
||
|
|
return new Date(a.commit.committer.date) > new Date(b.commit.committer.date);
|
||
|
|
})[0] : undefined;
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* timeDifference is taken from:
|
||
|
|
* http://stackoverflow.com/questions/6108819/javascript-timestamp-to-relative-time-eg-2-seconds-ago-one-week-ago-etc-best
|
||
|
|
* tweaks by me
|
||
|
|
*/
|
||
|
|
var timeDifference = function(current, previous) {
|
||
|
|
var maybePluralize = function(elapsed) {
|
||
|
|
return elapsed === 1 ? '' : 's';
|
||
|
|
};
|
||
|
|
var msPerMinute = 60 * 1000,
|
||
|
|
msPerHour = msPerMinute * 60,
|
||
|
|
msPerDay = msPerHour * 24,
|
||
|
|
msPerMonth = msPerDay * 30,
|
||
|
|
msPerYear = msPerDay * 365,
|
||
|
|
justNowLim = 15 * 1000,
|
||
|
|
elapsed = current - previous,
|
||
|
|
t = 0;
|
||
|
|
if (elapsed < msPerMinute) {
|
||
|
|
return elapsed < justNowLim ?
|
||
|
|
' just now' : Math.round(elapsed / 1000) + ' seconds ago';
|
||
|
|
}
|
||
|
|
if (elapsed < msPerHour) {
|
||
|
|
t = Math.round(elapsed / msPerMinute);
|
||
|
|
return t + ' minute' + maybePluralize(t) + ' ago';
|
||
|
|
}
|
||
|
|
if (elapsed < msPerDay) {
|
||
|
|
t = Math.round(elapsed / msPerHour);
|
||
|
|
return t + ' hour' + maybePluralize(t) + ' ago';
|
||
|
|
}
|
||
|
|
if (elapsed < msPerMonth) {
|
||
|
|
t = Math.round(elapsed / msPerDay);
|
||
|
|
return t + ' day' + maybePluralize(t) + ' ago';
|
||
|
|
}
|
||
|
|
if (elapsed < msPerYear) {
|
||
|
|
t = Math.round(elapsed / msPerMonth);
|
||
|
|
return 'about ' + t + ' month' + maybePluralize(t) + ' ago';
|
||
|
|
}
|
||
|
|
t = Math.round(elapsed / msPerYear);
|
||
|
|
return 'about ' + t + ' year' + maybePluralize(t) + ' ago';
|
||
|
|
};
|
||
|
|
|
||
|
|
var addClickHandlers = function(wrapperId, url, hasComments) {
|
||
|
|
document.getElementById('talaria-show-' + wrapperId).addEventListener('click', function (e) {
|
||
|
|
if (hasComments) {
|
||
|
|
e.preventDefault();
|
||
|
|
document.querySelector('#talaria-wrap-' + wrapperId + ' .talaria-comment-list-wrapper').classList.remove('hide');
|
||
|
|
this.classList.add('hide');
|
||
|
|
}
|
||
|
|
});
|
||
|
|
document.getElementById('talaria-add-' + wrapperId).addEventListener('click', function () {
|
||
|
|
if (CONFIG.LOCAL_STORAGE_SUPPORTED) {
|
||
|
|
sessionStorage.removeItem(url);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
// Taken from http://youmightnotneedjquery.com/#extend
|
||
|
|
var extend = function(out) {
|
||
|
|
out = out || {};
|
||
|
|
|
||
|
|
for (var i = 1; i < arguments.length; i++) {
|
||
|
|
if (!arguments[i])
|
||
|
|
continue;
|
||
|
|
|
||
|
|
for (var key in arguments[i]) {
|
||
|
|
if (arguments[i].hasOwnProperty(key))
|
||
|
|
out[key] = arguments[i][key];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return out;
|
||
|
|
};
|
||
|
|
|
||
|
|
var getJSON = function (url) {
|
||
|
|
return new Promise(function (resolve, reject) {
|
||
|
|
var req = new XMLHttpRequest();
|
||
|
|
req.open('GET', url, true);
|
||
|
|
req.setRequestHeader('Accept', 'application/vnd.github.v3.html+json');
|
||
|
|
req.onload = function () {
|
||
|
|
if (req.status >= 200 && req.status < 400){
|
||
|
|
resolve(JSON.parse(req.responseText));
|
||
|
|
} else {
|
||
|
|
reject(req);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
req.onerror = function () {
|
||
|
|
// TODO: check if this needs params
|
||
|
|
reject(req);
|
||
|
|
};
|
||
|
|
req.send();
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
var parentArticle = function (node) {
|
||
|
|
var n = node;
|
||
|
|
while(n.parentNode !== null) {
|
||
|
|
if (n.parentElement.tagName === 'ARTICLE') {
|
||
|
|
return n.parentNode;
|
||
|
|
}
|
||
|
|
n = n.parentNode;
|
||
|
|
}
|
||
|
|
return n;
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Custom Errors
|
||
|
|
*/
|
||
|
|
function RateLimitedError (msg) {
|
||
|
|
this.name = 'RateLimitedError';
|
||
|
|
this.message = msg || 'Rate-Limit exceeded.';
|
||
|
|
}
|
||
|
|
RateLimitedError.prototype = Object.create(Error.prototype);
|
||
|
|
RateLimitedError.prototype.constructor = RateLimitedError;
|
||
|
|
|
||
|
|
function NotFoundError (msg) {
|
||
|
|
this.name = 'NotFoundError';
|
||
|
|
this.message = msg || 'Object not found.';
|
||
|
|
}
|
||
|
|
NotFoundError.prototype = Object.create(Error.prototype);
|
||
|
|
NotFoundError.prototype.constructor = NotFoundError;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Error Predicates
|
||
|
|
*/
|
||
|
|
function isRateLimited(e) {
|
||
|
|
return e.status === 403;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* HTML Templates
|
||
|
|
*/
|
||
|
|
var wrapperTemplate = function(id, url, ccount, commentsHidden) {
|
||
|
|
var wrapper = document.createElement('div');
|
||
|
|
commentsHidden = ccount === 0 || commentsHidden;
|
||
|
|
wrapper.innerHTML =
|
||
|
|
'<div id="talaria-wrap-' + id + '" class="talaria-wrapper">' +
|
||
|
|
' <div class="talaria-load-error hide">' +
|
||
|
|
' Unable to retrieve comments for this post.' +
|
||
|
|
' </div>' +
|
||
|
|
' <a id="talaria-show-' + id + '" href="' + url + '" target="_blank">' +
|
||
|
|
' <div class="talaria-comment-count' + (commentsHidden ? '' : ' hide') + '">' +
|
||
|
|
' <i class="fa fa-github" aria-hidden="true"></i>' +
|
||
|
|
(ccount === 0 ? 'Comment' : (ccount + ' comment' + (ccount === 1 ? '' : 's'))) +
|
||
|
|
' </div>' +
|
||
|
|
'</a>' +
|
||
|
|
' <div class="talaria-comment-list-wrapper' + (commentsHidden ? ' hide' : '') + '">' +
|
||
|
|
' <div class="talaria-header">' +
|
||
|
|
' <h3>Comments</h3>' +
|
||
|
|
' </div>' +
|
||
|
|
' <div class="talaria-comment-list" id="talaria-comment-list-' + id + '">' +
|
||
|
|
' <!-- comments are dynamically added here -->' +
|
||
|
|
' </div>' +
|
||
|
|
' <div class="talaria-align-right">' +
|
||
|
|
' <a id="talaria-add-' + id + '" class="talaria-add-comment-button" href="' + url + '">' +
|
||
|
|
' <button type="submit">Add a Comment</button>' +
|
||
|
|
' </a>' +
|
||
|
|
' </div>' +
|
||
|
|
' </div>' +
|
||
|
|
'</div>';
|
||
|
|
return wrapper;
|
||
|
|
};
|
||
|
|
|
||
|
|
var commentTemplate = function(comment) {
|
||
|
|
var now = new Date().getTime(),
|
||
|
|
headerLeft;
|
||
|
|
|
||
|
|
if (comment.commit_id !== undefined) {
|
||
|
|
headerLeft = '';
|
||
|
|
} else {
|
||
|
|
headerLeft = '<span class="talaria-header-left"> wrote</span>';
|
||
|
|
}
|
||
|
|
|
||
|
|
return '<div id="' + comment.id + '" class="talaria-comment-bubble">' +
|
||
|
|
' <a class="talaria-author-nick" href="' + comment.user.html_url + '">' +
|
||
|
|
' <img class="talaria-comment-author-avatar" height="48" width="48" src="' + comment.user.avatar_url + '" />' +
|
||
|
|
' </a>' +
|
||
|
|
' <div class="talaria-comment-bubble-content">' +
|
||
|
|
' <div class="talaria-comment-bubble-inner">' +
|
||
|
|
' <div class="talaria-comment-header">' +
|
||
|
|
' <a class="talaria-author-nick" href="' + comment.user.html_url + '"><b>' + comment.user.login + '</b></a>' +
|
||
|
|
headerLeft +
|
||
|
|
' <span class="talaria-header-right">' + timeDifference(now, new Date(comment.updated_at)) + '</span>' +
|
||
|
|
' </div>' +
|
||
|
|
' <div class="talaria-comment-body">' + (comment.body_html || comment.body) + '</div>' +
|
||
|
|
' </div>' +
|
||
|
|
' </div>' +
|
||
|
|
'</div>';
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Github API interaction - Commit-based
|
||
|
|
*/
|
||
|
|
var retrieveCommitBasedComments = function() {
|
||
|
|
return grabPermalinks().map(function (permalink) {
|
||
|
|
return maybeGetCachedVersion(permalink.getAttribute('href')).then(function (cacheData) {
|
||
|
|
displayCommentsForCommits(permalink, cacheData);
|
||
|
|
return cacheData.comments;
|
||
|
|
}).catch(function () {
|
||
|
|
// cache miss
|
||
|
|
return grabCommitsForFile(permalink).
|
||
|
|
map(function (commit) {
|
||
|
|
return grabCommentsForCommit(commit);
|
||
|
|
}).
|
||
|
|
reduce(function (acc, commitData) {
|
||
|
|
var commit = commitData.commit;
|
||
|
|
acc.comments = acc.comments.concat(commitData.comments);
|
||
|
|
acc.commits.push({sha: commit.sha,
|
||
|
|
commit: {committer: {date: commit.commit.committer.date},
|
||
|
|
comment_count: commit.commit.comment_count}});
|
||
|
|
return acc;
|
||
|
|
}, {comments: [], commits: []}).
|
||
|
|
then(function (data) {
|
||
|
|
var cacheData = {'comments': data.comments, 'commits': data.commits};
|
||
|
|
cacheCommentData(permalink.getAttribute('href'), cacheData);
|
||
|
|
displayCommentsForCommits(permalink, cacheData);
|
||
|
|
return data.comments;
|
||
|
|
}).catch(RateLimitedError, function () {
|
||
|
|
var article = parentArticle(permalink),
|
||
|
|
wrapper = wrapperTemplate('', '', 0, false);
|
||
|
|
|
||
|
|
article.appendChild(wrapper);
|
||
|
|
|
||
|
|
var errorMsg = article.querySelector('div.talaria-load-error'),
|
||
|
|
commentCount = article.querySelector('div.talaria-comment-count');
|
||
|
|
|
||
|
|
errorMsg.innerHTML = 'The Github API rate-limit has been reached. Unable to load comments.';
|
||
|
|
errorMsg.classList.remove('hide');
|
||
|
|
commentCount.classList.add('hide');
|
||
|
|
}).catch(NotFoundError, function () {
|
||
|
|
var article = parentArticle(permalink),
|
||
|
|
wrapper = wrapperTemplate('', '', 0, false);
|
||
|
|
|
||
|
|
article.appendChild(wrapper);
|
||
|
|
|
||
|
|
var errorMsg = article.querySelector('div.talaria-load-error'),
|
||
|
|
commentCount = article.querySelector('div.talaria-comment-count');
|
||
|
|
|
||
|
|
errorMsg.innerHTML = 'Unable to find commits for this post.';
|
||
|
|
errorMsg.classList.remove('hide');
|
||
|
|
commentCount.classList.add('hide');
|
||
|
|
});
|
||
|
|
});
|
||
|
|
}, {concurrency: 2});
|
||
|
|
};
|
||
|
|
|
||
|
|
var grabPermalinks = function () {
|
||
|
|
var links = [],
|
||
|
|
permas = document.querySelectorAll(CONFIG.PERMALINK_IDENTIFIER);
|
||
|
|
|
||
|
|
for (var i = 0 ; i < permas.length; i++) {
|
||
|
|
links.push(permas[i]);
|
||
|
|
}
|
||
|
|
return P.resolve(links);
|
||
|
|
};
|
||
|
|
|
||
|
|
var grabCommitsForFile = function(permalink) {
|
||
|
|
var p = extrapolatePathFromPermalink(permalink.href);
|
||
|
|
|
||
|
|
return getJSON(CONFIG.COMMIT_API_ENDPOINT + '?path=' + p).
|
||
|
|
then(function (commits) {
|
||
|
|
if (commits.length === 0) {
|
||
|
|
throw new NotFoundError();
|
||
|
|
}
|
||
|
|
return P.resolve(commits);
|
||
|
|
}).catch(isRateLimited, function () {
|
||
|
|
throw new RateLimitedError();
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
var grabCommentsForCommit = function(commit) {
|
||
|
|
if (commit.commit.comment_count > 0) {
|
||
|
|
return getJSON(CONFIG.COMMIT_API_ENDPOINT + '/' +
|
||
|
|
commit.sha + '/comments').
|
||
|
|
then(function (comments) {
|
||
|
|
return {commit: commit, comments: comments};
|
||
|
|
}).catch(isRateLimited, function () {
|
||
|
|
throw new RateLimitedError();
|
||
|
|
}).catch(function () {
|
||
|
|
return {commit: commit, comments: []};
|
||
|
|
});
|
||
|
|
}
|
||
|
|
return {commit: commit, comments: []};
|
||
|
|
};
|
||
|
|
|
||
|
|
var displayCommentsForCommits = function(permalinkElement, data) {
|
||
|
|
var comments = data.comments,
|
||
|
|
lastCommit = latest(data.commits),
|
||
|
|
latestCommitUrl = CONFIG.REPO_COMMIT_URL_ROOT +
|
||
|
|
lastCommit.sha + '#all_commit_comments',
|
||
|
|
wrapper = wrapperTemplate(lastCommit.sha,
|
||
|
|
latestCommitUrl,
|
||
|
|
comments.length,
|
||
|
|
(location.pathname === '/' ||
|
||
|
|
CONFIG.PAGINATION_SCHEME.test(location.pathname))),
|
||
|
|
commentHtml = comments.map(commentTemplate).join(''),
|
||
|
|
article = parentArticle(permalinkElement);
|
||
|
|
|
||
|
|
article.appendChild(wrapper);
|
||
|
|
|
||
|
|
document.getElementById('talaria-comment-list-' + lastCommit.sha).innerHTML = commentHtml;
|
||
|
|
addClickHandlers(lastCommit.sha, permalinkElement.href, comments.length > 0);
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Github API interaction - Gist-based
|
||
|
|
*/
|
||
|
|
var retrieveGistBasedComments = function() {
|
||
|
|
return getJSON(CONFIG.GIST_MAPPINGS).
|
||
|
|
then(function (gistMappings) {
|
||
|
|
return getRelevantMappings(gistMappings);
|
||
|
|
}).map(function (mapping) {
|
||
|
|
var gist = mapping.gist;
|
||
|
|
|
||
|
|
return maybeGetCachedVersion(gist.permalink).
|
||
|
|
catch(function () {
|
||
|
|
// cache miss
|
||
|
|
return getGistComments(gist);
|
||
|
|
}).then(function (gist) {
|
||
|
|
displayCommentsForGist(mapping.linkobj, gist);
|
||
|
|
return gist;
|
||
|
|
}).catch(function (error) {
|
||
|
|
// 404 or 403
|
||
|
|
gist.comments = [];
|
||
|
|
showErrorForGist(mapping.linkobj, error, gist);
|
||
|
|
return gist;
|
||
|
|
});
|
||
|
|
}, {concurrency: 2}).catch(function () {
|
||
|
|
showGistMappingsError();
|
||
|
|
return [];
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
var getGistComments = function (gist) {
|
||
|
|
return getJSON('https://api.github.com/gists/' + gist.id + '/comments').
|
||
|
|
then(function (comments) {
|
||
|
|
gist.comments = comments;
|
||
|
|
cacheCommentData(gist.permalink, gist);
|
||
|
|
return gist;
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
var getRelevantMappings = function (gistMappings) {
|
||
|
|
var mappings = [],
|
||
|
|
gist;
|
||
|
|
|
||
|
|
for (var entry in gistMappings) {
|
||
|
|
if (gistMappings.hasOwnProperty(entry)) {
|
||
|
|
gist = gistMappings[entry];
|
||
|
|
var permalink = document.querySelector(CONFIG.PERMALINK_IDENTIFIER +
|
||
|
|
'[href="' + gist.permalink + '"]');
|
||
|
|
if (permalink !== null) {
|
||
|
|
mappings.push({'gist':gistMappings[entry],
|
||
|
|
'linkobj': permalink});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return mappings;
|
||
|
|
};
|
||
|
|
|
||
|
|
var showGistMappingsError = function () {
|
||
|
|
var wrapper = wrapperTemplate('', '', 0, false),
|
||
|
|
permas = document.querySelectorAll(CONFIG.PERMALINK_IDENTIFIER);
|
||
|
|
|
||
|
|
for (var i = 0; i < permas.length; i++) {
|
||
|
|
permas[i].appendChild(wrapper.cloneNode(true));
|
||
|
|
}
|
||
|
|
|
||
|
|
var errors = document.querySelectorAll('div.talaria-wrapper div.talaria-load-error');
|
||
|
|
for (var j = 0; j < errors.length; j++) {
|
||
|
|
errors[j].innerHTML = 'Unable to load comments.';
|
||
|
|
errors[j].classList.remove('hide');
|
||
|
|
}
|
||
|
|
document.querySelector('div.talaria-wrapper div.talaria-comment-count').classList.add('hide');
|
||
|
|
};
|
||
|
|
|
||
|
|
var showErrorForGist = function(permalinkElement, error, gist) {
|
||
|
|
var gistUrl = CONFIG.GIST_URL_ROOT + gist.id + '#comments',
|
||
|
|
wrapper = wrapperTemplate(gist.id,
|
||
|
|
gistUrl,
|
||
|
|
gist.comments.length,
|
||
|
|
(location.pathname === '/' ||
|
||
|
|
CONFIG.PAGINATION_SCHEME.test(location.pathname)));
|
||
|
|
|
||
|
|
parentArticle(permalinkElement).appendChild(wrapper);
|
||
|
|
|
||
|
|
var elem = document.querySelector('#talaria-wrap-' + gist.id + ' div.talaria-load-error');
|
||
|
|
elem.classList.remove('hide');
|
||
|
|
document.querySelector('#talaria-wrap-' + gist.id + ' div.talaria-comment-count').classList.add('hide');
|
||
|
|
|
||
|
|
switch (error.status) {
|
||
|
|
case 403:
|
||
|
|
elem.innerHTML = 'The Github API rate-limit has been reached. Unable to load comments.';
|
||
|
|
break;
|
||
|
|
case 404:
|
||
|
|
elem.innerHTML = 'Unable to find a matching gist.';
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
elem.innerHTML = 'An error occurred retrieving comments for this post.';
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
var displayCommentsForGist = function(permalinkElement, gist) {
|
||
|
|
var gistUrl = CONFIG.GIST_URL_ROOT + gist.id + '#comments',
|
||
|
|
wrapper = wrapperTemplate(gist.id,
|
||
|
|
gistUrl,
|
||
|
|
gist.comments.length,
|
||
|
|
(location.pathname === '/' ||
|
||
|
|
CONFIG.PAGINATION_SCHEME.test(location.pathname))),
|
||
|
|
commentHtml = gist.comments.map(commentTemplate).join('');
|
||
|
|
|
||
|
|
parentArticle(permalinkElement).appendChild(wrapper);
|
||
|
|
document.getElementById('talaria-comment-list-' + gist.id).innerHTML = commentHtml;
|
||
|
|
addClickHandlers(gist.id, gist.permalink, gist.comments.length > 0);
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Configuration and Initialization
|
||
|
|
*/
|
||
|
|
var updateConfig = function(config) {
|
||
|
|
CONFIG = extend({}, DEFAULTS, config);
|
||
|
|
CONFIG.GISTS_API_ENDPOINT = 'https://api.github.com/users/' +
|
||
|
|
CONFIG.GITHUB_USERNAME + '/gists';
|
||
|
|
CONFIG.COMMIT_API_ENDPOINT = 'https://api.github.com/repos/' +
|
||
|
|
CONFIG.GITHUB_USERNAME + '/' + CONFIG.REPOSITORY_NAME + '/commits';
|
||
|
|
CONFIG.REPO_COMMIT_URL_ROOT = 'https://github.com/' +
|
||
|
|
CONFIG.GITHUB_USERNAME + '/' + CONFIG.REPOSITORY_NAME + '/commit/';
|
||
|
|
CONFIG.GIST_URL_ROOT = 'https://gist.github.com/' +
|
||
|
|
CONFIG.GITHUB_USERNAME + '/';
|
||
|
|
CONFIG.PERMALINK_STYLE = setPermalinkRegex();
|
||
|
|
};
|
||
|
|
|
||
|
|
var initialize = function (config) {
|
||
|
|
updateConfig(config);
|
||
|
|
|
||
|
|
if (localStorageSupported) {
|
||
|
|
CONFIG.LOCAL_STORAGE_SUPPORTED = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (CONFIG.USE_GISTS) {
|
||
|
|
return retrieveGistBasedComments();
|
||
|
|
} else {
|
||
|
|
return retrieveCommitBasedComments();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Public API
|
||
|
|
*/
|
||
|
|
return {
|
||
|
|
init: initialize
|
||
|
|
};
|
||
|
|
})(P);
|