7946a6f321
Use urlencoded data for sending to server. Improve outlook for progressive enhancement. Add Cancel-link
109 lines
2.9 KiB
HTML
109 lines
2.9 KiB
HTML
<header>
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<h1>{{title}}</h1>
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</header>
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<article>
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<div class="rendered">
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{{{rendered}}}
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</div>
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<div class="editor">
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<form action="" method="POST">
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<input type=hidden name=baseRevision value="{{revision}}">
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<textarea autocomplete=off name=body>{{raw}}</textarea>
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<textarea autocomplete=off class="shadow-control"></textarea>
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<div class="editor-controls">
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<a href="{{article_id}}">Cancel</a>
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<button type=submit>Save</button>
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</div>
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</form>
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</div>
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</article>
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<footer>
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<p><a id="openEditor" href="?editor">Edit</a></p>
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<dl>
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<dt>Article ID</dt>
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<dd>{{article_id}}</dd>
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<dt>Revision</dt>
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<dd>{{revision}}</dd>
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<dt>Last updated</dt>
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<dd>{{created}}</dd>
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</dl>
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</footer>
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<script>
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function autosizeTextarea(textarea, shadow) {
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shadow.style.width = textarea.clientWidth + "px";
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shadow.value = textarea.value;
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textarea.style.height = shadow.scrollHeight + "px";
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}
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function queryArgsFromForm(form) {
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const items = [];
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for (const {name, value} of form.elements) {
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if (!name) continue;
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items.push(encodeURIComponent(name) + '=' + encodeURIComponent(value));
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}
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return items.join('&');
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}
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function openEditor() {
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const article = document.querySelector("article");
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const rendered = document.querySelector(".rendered");
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const editor = document.querySelector(".editor");
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const textarea = editor.querySelector('textarea[name="body"]');
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const shadow = editor.querySelector('textarea.shadow-control');
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textarea.style.height = rendered.clientHeight + "px";
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article.classList.add('edit');
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autosizeTextarea(textarea, shadow);
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textarea.addEventListener('input', () => autosizeTextarea(textarea, shadow));
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window.addEventListener('resize', () => autosizeTextarea(textarea, shadow));
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const form = editor.querySelector("form");
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form.addEventListener("submit", function (ev) {
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(async function () {
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ev.preventDefault();
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ev.stopPropagation();
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const body = queryArgsFromForm(form);
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textarea.disabled = true;
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const response = await fetch(
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form.getAttribute("action"),
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{
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method: 'PUT',
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headers: {
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"Content-Type": "application/x-www-form-urlencoded"
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},
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body: body,
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}
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);
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if (!response.ok) throw new Error("Unexpected status code (" + response.status + ")");
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textarea.disabled = false;
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}()
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.catch(err => {
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textarea.disabled = false;
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console.error(err);
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alert(err);
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}));
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});
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textarea.focus();
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}
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document
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.getElementById("openEditor")
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.addEventListener("click", function (ev) {
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ev.preventDefault();
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ev.stopPropagation();
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openEditor();
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})
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</script>
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