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Make tasklist checkboxes clickable (#15791)
Co-authored-by: silverwind <me@silverwind.io> Co-authored-by: Lauris BH <lauris@nix.lv>
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May 23, 2021
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,12 @@ | ||
| import {renderMermaid} from './mermaid.js'; | ||
| import {initMarkupTasklist} from './tasklist.js'; | ||
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| export async function renderMarkupContent() { | ||
| // code that runs for all markup content | ||
| export async function initMarkupContent() { | ||
| await renderMermaid(document.querySelectorAll('code.language-mermaid')); | ||
| } | ||
|
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| // code that only runs for comments | ||
| export function initCommentContent() { | ||
| initMarkupTasklist(); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| /** | ||
| * Attaches `input` handlers to markdown rendered tasklist checkboxes in comments. | ||
| * | ||
| * When a checkbox value changes, the corresponding [ ] or [x] in the markdown string | ||
| * is set accordingly and sent to the server. On success it updates the raw-content on | ||
| * error it resets the checkbox to its original value. | ||
| */ | ||
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| const preventListener = (e) => e.preventDefault(); | ||
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| export function initMarkupTasklist() { | ||
| for (const el of document.querySelectorAll(`.markup[data-can-edit=true]`) || []) { | ||
| const container = el.parentNode; | ||
| const checkboxes = el.querySelectorAll(`.task-list-item input[type=checkbox]`); | ||
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| for (const checkbox of checkboxes) { | ||
| if (checkbox.dataset.editable) return; | ||
| checkbox.dataset.editable = 'true'; | ||
| checkbox.addEventListener('input', async () => { | ||
| const checkboxCharacter = checkbox.checked ? 'x' : ' '; | ||
| const position = parseInt(checkbox.dataset.sourcePosition) + 1; | ||
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| const rawContent = container.querySelector('.raw-content'); | ||
| const oldContent = rawContent.textContent; | ||
| const newContent = oldContent.substring(0, position) + checkboxCharacter + oldContent.substring(position + 1); | ||
| if (newContent === oldContent) return; | ||
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| // Prevent further inputs until the request is done. This does not use the | ||
| // `disabled` attribute because it causes the border to flash on click. | ||
| for (const checkbox of checkboxes) { | ||
| checkbox.addEventListener('click', preventListener); | ||
| } | ||
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||
| try { | ||
| const editContentZone = container.querySelector('.edit-content-zone'); | ||
| const {updateUrl, context} = editContentZone.dataset; | ||
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| await $.post(updateUrl, { | ||
| _csrf: window.config.csrf, | ||
| content: newContent, | ||
| context, | ||
| }); | ||
|
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| rawContent.textContent = newContent; | ||
| } catch (err) { | ||
| checkbox.checked = !checkbox.checked; | ||
| console.error(err); | ||
| } | ||
|
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| // Enable input on checkboxes again | ||
| for (const checkbox of checkboxes) { | ||
| checkbox.removeEventListener('click', preventListener); | ||
| } | ||
| }); | ||
| } | ||
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| // Enable the checkboxes as they are initially disabled by the markdown renderer | ||
| for (const checkbox of checkboxes) { | ||
| checkbox.disabled = false; | ||
| } | ||
| } | ||
| } |