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|
/* global _ */
(function () {
'use strict';
/* jshint ignore:start */
// Underscore's Template Module
// Courtesy of underscorejs.org
var _ = (function (_) {
_.defaults = function (object) {
if (!object) {
return object;
}
for (var argsIndex = 1, argsLength = arguments.length; argsIndex < argsLength; argsIndex++) {
var iterable = arguments[argsIndex];
if (iterable) {
for (var key in iterable) {
if (object[key] == null) {
object[key] = iterable[key];
}
}
}
}
return object;
};
// By default, Underscore uses ERB-style template delimiters, change the
// following template settings to use alternative delimiters.
_.templateSettings = {
evaluate : /<%([\s\S]+?)%>/g,
interpolate : /<%=([\s\S]+?)%>/g,
escape : /<%-([\s\S]+?)%>/g
};
// When customizing `templateSettings`, if you don't want to define an
// interpolation, evaluation or escaping regex, we need one that is
// guaranteed not to match.
var noMatch = /(.)^/;
// Certain characters need to be escaped so that they can be put into a
// string literal.
var escapes = {
"'": "'",
'\\': '\\',
'\r': 'r',
'\n': 'n',
'\t': 't',
'\u2028': 'u2028',
'\u2029': 'u2029'
};
var escaper = /\\|'|\r|\n|\t|\u2028|\u2029/g;
// JavaScript micro-templating, similar to John Resig's implementation.
// Underscore templating handles arbitrary delimiters, preserves whitespace,
// and correctly escapes quotes within interpolated code.
_.template = function(text, data, settings) {
var render;
settings = _.defaults({}, settings, _.templateSettings);
// Combine delimiters into one regular expression via alternation.
var matcher = new RegExp([
(settings.escape || noMatch).source,
(settings.interpolate || noMatch).source,
(settings.evaluate || noMatch).source
].join('|') + '|$', 'g');
// Compile the template source, escaping string literals appropriately.
var index = 0;
var source = "__p+='";
text.replace(matcher, function(match, escape, interpolate, evaluate, offset) {
source += text.slice(index, offset)
.replace(escaper, function(match) { return '\\' + escapes[match]; });
if (escape) {
source += "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'";
}
if (interpolate) {
source += "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'";
}
if (evaluate) {
source += "';\n" + evaluate + "\n__p+='";
}
index = offset + match.length;
return match;
});
source += "';\n";
// If a variable is not specified, place data values in local scope.
if (!settings.variable) source = 'with(obj||{}){\n' + source + '}\n';
source = "var __t,__p='',__j=Array.prototype.join," +
"print=function(){__p+=__j.call(arguments,'');};\n" +
source + "return __p;\n";
try {
render = new Function(settings.variable || 'obj', '_', source);
} catch (e) {
e.source = source;
throw e;
}
if (data) return render(data, _);
var template = function(data) {
return render.call(this, data, _);
};
// Provide the compiled function source as a convenience for precompilation.
template.source = 'function(' + (settings.variable || 'obj') + '){\n' + source + '}';
return template;
};
return _;
})({});
if (location.hostname === 'todomvc.com') {
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-31081062-1', 'auto');
ga('send', 'pageview');
}
/* jshint ignore:end */
function redirect() {
if (location.hostname === 'tastejs.github.io') {
location.href = location.href.replace('tastejs.github.io/todomvc', 'todomvc.com');
}
}
function findRoot() {
var base = location.href.indexOf('examples/');
return location.href.substr(0, base);
}
function getFile(file, callback) {
if (!location.host) {
return console.info('Miss the info bar? Run TodoMVC from a server to avoid a cross-origin error.');
}
var xhr = new XMLHttpRequest();
xhr.open('GET', findRoot() + file, true);
xhr.send();
xhr.onload = function () {
if (xhr.status === 200 && callback) {
callback(xhr.responseText);
}
};
}
function Learn(learnJSON, config) {
if (!(this instanceof Learn)) {
return new Learn(learnJSON, config);
}
var template, framework;
if (typeof learnJSON !== 'object') {
try {
learnJSON = JSON.parse(learnJSON);
} catch (e) {
return;
}
}
if (config) {
template = config.template;
framework = config.framework;
}
if (!template && learnJSON.templates) {
template = learnJSON.templates.todomvc;
}
if (!framework && document.querySelector('[data-framework]')) {
framework = document.querySelector('[data-framework]').dataset.framework;
}
this.template = template;
if (learnJSON.backend) {
this.frameworkJSON = learnJSON.backend;
this.frameworkJSON.issueLabel = framework;
this.append({
backend: true
});
} else if (learnJSON[framework]) {
this.frameworkJSON = learnJSON[framework];
this.frameworkJSON.issueLabel = framework;
this.append();
}
this.fetchIssueCount();
}
Learn.prototype.append = function (opts) {
var aside = document.createElement('aside');
aside.innerHTML = _.template(this.template, this.frameworkJSON);
aside.className = 'learn';
if (opts && opts.backend) {
// Remove demo link
var sourceLinks = aside.querySelector('.source-links');
var heading = sourceLinks.firstElementChild;
var sourceLink = sourceLinks.lastElementChild;
// Correct link path
var href = sourceLink.getAttribute('href');
sourceLink.setAttribute('href', href.substr(href.lastIndexOf('http')));
sourceLinks.innerHTML = heading.outerHTML + sourceLink.outerHTML;
} else {
// Localize demo links
var demoLinks = aside.querySelectorAll('.demo-link');
Array.prototype.forEach.call(demoLinks, function (demoLink) {
if (demoLink.getAttribute('href').substr(0, 4) !== 'http') {
demoLink.setAttribute('href', findRoot() + demoLink.getAttribute('href'));
}
});
}
document.body.className = (document.body.className + ' learn-bar').trim();
document.body.insertAdjacentHTML('afterBegin', aside.outerHTML);
};
Learn.prototype.fetchIssueCount = function () {
var issueLink = document.getElementById('issue-count-link');
if (issueLink) {
var url = issueLink.href.replace('https://github.com', 'https://api.github.com/repos');
var xhr = new XMLHttpRequest();
xhr.open('GET', url, true);
xhr.onload = function (e) {
var parsedResponse = JSON.parse(e.target.responseText);
if (parsedResponse instanceof Array) {
var count = parsedResponse.length;
if (count !== 0) {
issueLink.innerHTML = 'This app has ' + count + ' open issues';
document.getElementById('issue-count').style.display = 'inline';
}
}
};
xhr.send();
}
};
redirect();
getFile('learn.json', Learn);
})();
|
