|
| 1 | +const styles = new CSSStyleSheet() |
| 2 | +styles.replaceSync(` |
| 3 | +:host { |
| 4 | + display: grid; |
| 5 | + border: 1px solid grey; |
| 6 | + grid-template: |
| 7 | + "avatar author_name author_name" 25px |
| 8 | + "avatar handle handle" 25px |
| 9 | + "content content content" max-content |
| 10 | + "backlink backlink backlink" 25px |
| 11 | + / 60px auto auto; |
| 12 | +} |
| 13 | +
|
| 14 | +[part="avatar"] { |
| 15 | + grid-area: avatar; |
| 16 | + border-radius: 4px; |
| 17 | +} |
| 18 | +[part="author_name"] { |
| 19 | + grid-area: author_name |
| 20 | +} |
| 21 | +[part="handle"] { |
| 22 | + grid-area: handle |
| 23 | +} |
| 24 | +[part="content"] { |
| 25 | + grid-area: content |
| 26 | +} |
| 27 | +[part="backlink"] { |
| 28 | + grid-area: backlink |
| 29 | +} |
| 30 | +`) |
| 31 | + |
| 32 | +/** |
| 33 | + * An example Custom Element. This documentation ends up in the |
| 34 | + * README so describe how this elements works here. |
| 35 | + * |
| 36 | + * You can event add examples on the element is used with Markdown. |
| 37 | + * |
| 38 | + * ``` |
| 39 | + * <toot-embed></toot-embed> |
| 40 | + * ``` |
| 41 | + */ |
| 42 | +class TootEmbedElement extends HTMLElement { |
| 43 | + static observeAttributes = ['src'] |
| 44 | + #renderRoot!: ShadowRoot |
| 45 | + |
| 46 | + get src() { |
| 47 | + return this.getAttribute('src') || '' |
| 48 | + } |
| 49 | + |
| 50 | + set src(value: string) { |
| 51 | + this.setAttribute('src', `${value}`) |
| 52 | + } |
| 53 | + |
| 54 | + get #contentPart() { |
| 55 | + return this.#renderRoot.querySelector('[part=content]') |
| 56 | + } |
| 57 | + |
| 58 | + get #authorNamePart() { |
| 59 | + return this.#renderRoot.querySelector('[part=author_name]') |
| 60 | + } |
| 61 | + |
| 62 | + get #authorHandlePart() { |
| 63 | + return this.#renderRoot.querySelector('[part=author_handle]') |
| 64 | + } |
| 65 | + |
| 66 | + get #avatarPart() { |
| 67 | + return this.#renderRoot.querySelector('[part=avatar]') |
| 68 | + } |
| 69 | + |
| 70 | + get #backlinkPart() { |
| 71 | + return this.#renderRoot.querySelector('[part=backlink]') |
| 72 | + } |
| 73 | + |
| 74 | + |
| 75 | + connectedCallback(): void { |
| 76 | + this.#renderRoot = this.attachShadow({mode: 'open'}) |
| 77 | + this.#renderRoot.adoptedStyleSheets.push(styles) |
| 78 | + this.#renderRoot.innerHTML = ` |
| 79 | + <img part="avatar" width="50"> |
| 80 | + <span part="author_name"></span> |
| 81 | + <span part="author_handle"></span> |
| 82 | + <div part="content"></div> |
| 83 | + <a part="backlink" href="">Original Toot</a> |
| 84 | + ` |
| 85 | + if (this.querySelector('script[type="application/json"]')) { |
| 86 | + return this.#render(JSON.parse(this.querySelector('script[type="application/json"]').textContent)) |
| 87 | + } |
| 88 | + if (this.src) this.load() |
| 89 | + } |
| 90 | + |
| 91 | + attributeChangedCallback(name: 'src', oldValue: string | null, newValue: string | null) { |
| 92 | + if (this.isConnected) return |
| 93 | + if (this.#renderRoot) return |
| 94 | + if (oldValue === newValue) return |
| 95 | + this.load() |
| 96 | + } |
| 97 | + |
| 98 | + async load() { |
| 99 | + const src = new URL(this.src, window.location.origin) |
| 100 | + const response = await fetch(src) |
| 101 | + console.log(response) |
| 102 | + this.#render(await response.json()) |
| 103 | + } |
| 104 | + |
| 105 | + #render(json: unknown) { |
| 106 | + const {account, url, content} = json |
| 107 | + console.log(json) |
| 108 | + this.#authorNamePart.innerHTML = account.display_name |
| 109 | + const handleURL = new URL(account.url) |
| 110 | + this.#authorHandlePart.innerHTML = `${handleURL.pathname.slice(1)}@${handleURL.hostname}` |
| 111 | + this.#avatarPart.src = account.avatar |
| 112 | + this.#contentPart.innerHTML = content |
| 113 | + this.#backlinkPart.href = url |
| 114 | + } |
| 115 | +} |
| 116 | + |
| 117 | +declare global { |
| 118 | + interface Window { |
| 119 | + TootEmbedElement: typeof TootEmbedElement |
| 120 | + } |
| 121 | +} |
| 122 | + |
| 123 | +export default TootEmbedElement |
| 124 | + |
| 125 | +if (!window.customElements.get('toot-embed')) { |
| 126 | + window.TootEmbedElement = TootEmbedElement |
| 127 | + window.customElements.define('toot-embed', TootEmbedElement) |
| 128 | +} |
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