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rework feed integration to use Asciidoctor extension, a handlebars te…
…mplate, and a simpler HTML structure
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| 'use strict' | ||
|
|
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| const toHash = (object) => object && !object.$$is_hash ? Opal.hash2(Object.keys(object), object) : object | ||
|
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| const toProc = (fn) => Object.defineProperty(fn, '$$arity', { value: fn.length }) | ||
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| function register (registry, { file } = {}) { | ||
| if (!registry) return this.register('feed', createExtensionGroup()) | ||
| registry.$groups().$store('feed', toProc(createExtensionGroup(file))) | ||
| return registry | ||
| } | ||
|
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| function createExtensionGroup (file) { | ||
| return function () { | ||
| this.blockMacro('feed', function () { | ||
| this.process((parent, target, attrs) => { | ||
| if (file) file.asciidoc.attributes['page-has-feeds'] = '' | ||
| let currentParent = parent | ||
| let sect | ||
| if ('title' in attrs) { | ||
| const title = attrs.title | ||
| delete attrs.title | ||
| attrs.role = `${attrs.role || ''} card-section`.trimStart() | ||
| currentParent.append((sect = this.$create_section(parent, title, toHash(attrs)))) | ||
| currentParent = sect | ||
| } | ||
| const dataset = { feed: target } | ||
| if ('max' in attrs) dataset.max = attrs.max | ||
| const dataAttrlist = Object.entries(dataset).reduce((accum, [name, val]) => `${accum} data-${name}="${val}"`, '') | ||
| const container = this.createPassBlock(currentParent, `<div class="card-entries"${dataAttrlist}></div>`, {}) | ||
| if (!sect) return container | ||
| sect.append(container) | ||
| }) | ||
| }) | ||
| } | ||
| } | ||
|
|
||
| module.exports = { register, createExtensionGroup } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| = Home | ||
| // page-has-feeds is automatically set by the feed block macro when used with Antora; must be set manually in the UI preview | ||
| :page-has-feeds: | ||
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| == Blog Entries | ||
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| .Jetty Blogs | ||
| feed::https://webtide.com/blog/feed/[id=jetty-feed,max=6] |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,35 @@ | ||
| ;(function () { | ||
| 'use strict' | ||
|
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| var feeds = [].slice.call(document.querySelectorAll('.doc [data-feed]')) | ||
| if (!feeds.length) return | ||
|
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| var template = document.getElementById('card-entry') | ||
| if (!(template && (template = template.content.querySelector('.card-block')))) return | ||
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| var XMLHttpRequest = window.XMLHttpRequest | ||
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| feeds.forEach(insertFeed) | ||
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| function insertFeed (feed) { | ||
| try { | ||
| var url = feed.dataset.feed | ||
| var max = Number(feed.dataset.max) || Infinity | ||
| var xhr = new XMLHttpRequest() | ||
| xhr.open('GET', url) | ||
| xhr.addEventListener('load', function () { | ||
| var items = [].slice.call(this.responseXML.querySelectorAll('item'), 0, max) | ||
| items.forEach(function (item) { | ||
| var entry = template.cloneNode(true) | ||
| entry.querySelector('.card-link').setAttribute('href', item.querySelector('link').textContent) | ||
| entry.querySelector('.card-title').innerHTML = item.querySelector('title').innerHTML | ||
| entry.querySelector('.card-content p').innerHTML = item.querySelector('description').textContent | ||
| feed.appendChild(entry) | ||
| }) | ||
| }) | ||
| } catch (e) { | ||
| console.error('Failed to retrieve feed: ' + url + '.', e) | ||
| } | ||
| xhr.send(null) | ||
| } | ||
| })() |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| <template id="card-entry" class="hidden"> | ||
| <div class="card-block"> | ||
| <a class="card-link"> | ||
| <div class="card-title"></div> | ||
| <div class="card-content overflow"> | ||
| <p></p> | ||
| </div> | ||
| </a> | ||
| </div> | ||
| </template> | ||
| <script src="{{{uiRootPath}}}/js/feeds.js"></script> |
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