107 lines
2.8 KiB
JavaScript
107 lines
2.8 KiB
JavaScript
function Navigation(modules) {
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var articles = modules.cache.make(function(key) {
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var url = ["", blog.path.articlesPath, key + '.md'].join('/');
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return modules.async.bind(
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modules.async.http({method: 'GET', url: url}),
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function(queryResult) {
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if(queryResult.status == 200) {
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return modules.async.wrap(queryResult.responseText);
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} else {
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return modules.async.fail(
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"Could not load article " + url + " (" + queryResult.status + " " + queryResult.statusText + ")"
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);
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}
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}
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);
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});
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window.addEventListener('popstate', function(e) {navigate(e.state.url);});
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history.replaceState({url: window.location.pathname}, 'Blog - title', window.location.pathname);
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return {
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hijackLinks: hijackLinks
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};
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function hijackLinks(domElem) {
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domElem = domElem || document;
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var links = domElem.getElementsByTagName('a');
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for(var i = 0; i < links.length; i++) {
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var a = links[i];
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if(a.classList.contains("navigation")) {
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a.addEventListener('click', visit(a.getAttribute("href")));
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}
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}
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}
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function visit(url) {
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return function(e) {
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e.preventDefault();
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history.pushState({url: url}, 'Blog - title', url);
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navigate(url);
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};
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}
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function navigate(url) {
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var path = url.split("/").slice(1);
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if(blog.tags[path[0]] != undefined) {
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show(getArticlesList(path[0], path[1] == "all.html"));
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} else if(path[0] == blog.path.articlesPath) {
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show(getArticle(path[1].replace(/\.html$/, '')));
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} else {
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show(getArticlesList(null, path[0] == "all.html"));
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}
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}
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function getArticle(key) {
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return modules.async.bind(
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articles.get(key),
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modules.async.map(
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function(contents) {return [modules.domRenderer.article(key, contents)];}
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)
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);
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}
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function preview(key) {
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return modules.async.bind(
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articles.get(key),
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function(contents) {
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return modules.async.wrap(
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modules.domRenderer.article(
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key,
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contents,
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blog.skin.previewLinesCount
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)
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);
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}
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);
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}
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function articleIds(tag, all) {
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var ids = tag != undefined ? blog.tags[tag] : Object.keys(blog.articles);
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ids.sort(function(idA, idB) {return blog.articles[idB].date - blog.articles[idA].date;});
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return ids.slice(0, all ? undefined : blog.skin.previewArticlesCount);
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}
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function getArticlesList(tag, all) {
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return modules.async.bind(
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modules.async.parallel.apply(null, articleIds(tag, all).map(preview)),
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modules.async.map(modules.domRenderer.articlesList(tag, all))
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);
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}
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function show(contents) {
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modules.async.run(
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modules.async.bind(
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contents,
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modules.async.map(function (domElems) {
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domElems = domElems.filter(modules.fun.defined);
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var div = document.getElementById('contents');
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modules.dom.clear(div);
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for(var i = 0; i < domElems.length; i++) {
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div.appendChild(domElems[i]);
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}
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hijackLinks(div);
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})
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)
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);
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}
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}
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