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// The action dispatcher + HTMX callback dispatcher, ported from mnw.js:724-871. |
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// |
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// These let templates drop inline `on*` / `hx-on::` handlers so the CSP keeps |
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// `script-src 'self'` (no 'unsafe-inline'). The one behavioral change from the |
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// port: `data-action` verbs resolve against a typed `register()` registry |
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// FIRST, falling back to a `window.<verb>` global for handlers not yet migrated |
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// off the legacy `static/*.js` files. New code should `register()`, never add a |
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// global — the `frontend_globals` seal enforces the ratchet. |
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|
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import { byId, targets } from './dom.ts'; |
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import { showToast } from './toast.ts'; |
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export type ActionHandler = (this: Element, ...args: string[]) => void; |
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const registry = new Map<string, ActionHandler>(); |
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/** Register a named `data-action` handler. Preferred over a `window.<name>` |
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* global; the dispatcher checks the registry before the global fallback. */ |
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export function register(name: string, fn: ActionHandler): void { |
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registry.set(name, fn); |
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} |
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type BuiltinFn = (el: Element) => void; |
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/** Built-in verbs operating on `data-target` element ids. */ |
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const BUILTINS: Record<string, BuiltinFn> = { |
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show: (el) => targets(el).forEach((t) => t.classList.remove('hidden')), |
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hide: (el) => targets(el).forEach((t) => t.classList.add('hidden')), |
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toggle: (el) => targets(el).forEach((t) => t.classList.toggle('hidden')), |
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click: (el) => targets(el).forEach((t) => t.click()), |
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remove: (el) => targets(el).forEach((t) => t.remove()), |
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'remove-self': (el) => el.remove(), |
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}; |
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/** Collect positional args from `data-arg` / `data-arg2`. Exported for tests. */ |
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export function collectArgs(el: Element): string[] { |
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const args: string[] = []; |
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const a1 = el.getAttribute('data-arg'); |
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if (a1 !== null) args.push(a1); |
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const a2 = el.getAttribute('data-arg2'); |
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if (a2 !== null) args.push(a2); |
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return args; |
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} |
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function run(el: Element, verb: string, evt: Event): void { |
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if (el.hasAttribute('data-prevent')) evt.preventDefault(); |
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if (el.hasAttribute('data-stop')) evt.stopPropagation(); |
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if (verb === 'nav') { |
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const href = el.getAttribute('data-href'); |
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if (href) window.location.href = href; |
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return; |
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} |
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const builtin = BUILTINS[verb]; |
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if (builtin) { |
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builtin(el); |
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return; |
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} |
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// Registry first, then the legacy `window.<verb>` global (strangler bridge). |
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const handler = registry.get(verb) ?? (window as unknown as Record<string, unknown>)[verb]; |
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if (typeof handler !== 'function') { |
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console.warn('data-action: no handler for', verb); |
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return; |
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} |
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(handler as ActionHandler).apply(el, collectArgs(el)); |
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} |
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function listen(eventName: string, attr: string, autoPrevent: boolean): void { |
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document.addEventListener(eventName, (evt) => { |
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const el = (evt.target as Element | null)?.closest('[' + attr + ']'); |
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if (!el) return; |
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if (autoPrevent) evt.preventDefault(); |
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const verb = el.getAttribute(attr); |
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if (verb) run(el, verb, evt); |
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}); |
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} |
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/** Install the `data-action`/`-change`/`-input`/`-submit` dispatcher. */ |
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export function initActionDispatcher(): void { |
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listen('click', 'data-action', false); |
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listen('change', 'data-change', false); |
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listen('input', 'data-input', false); |
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listen('submit', 'data-submit', true); |
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} |
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|
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// ---- HTMX callback dispatcher (hx-on:: replacement), ported from mnw.js:799 ---- |
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|
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interface HxDetail { |
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elt: HTMLElement; |
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successful?: boolean; |
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xhr?: XMLHttpRequest; |
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parameters?: Record<string, unknown>; |
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} |
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function refreshProfileTab(): void { |
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const t = document.getElementById('settings-body'); |
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if (t) { |
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htmx.ajax('GET', '/dashboard/tabs/profile', { target: t, swap: 'innerHTML' }); |
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} else { |
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byId('tab-profile')?.click(); |
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} |
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} |
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type BehaviorFn = (el: HTMLElement, evt: CustomEvent<HxDetail>) => void; |
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const BEHAVIORS: Record<string, BehaviorFn> = { |
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'mark-added': (el) => { |
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el.textContent = 'Added'; |
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(el as HTMLButtonElement).disabled = true; |
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}, |
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// Faithful to the inline original: the row fades only on success, but the |
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// label flips to 'Added' unconditionally (registered under data-hx-always). |
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'fade-row-added': (el, evt) => { |
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if (evt.detail.successful) el.closest('tr')?.classList.add('is-faded'); |
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el.textContent = 'Added'; |
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}, |
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'refresh-profile': () => refreshProfileTab(), |
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'refresh-profile-if-verified': (_el, evt) => { |
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if (evt.detail.xhr && evt.detail.xhr.responseText.indexOf('verified successfully') !== -1) { |
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refreshProfileTab(); |
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} |
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}, |
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}; |
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/** Install the `data-hx-*` afterRequest/configRequest dispatcher. */ |
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export function initHxCallbackDispatcher(): void { |
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document.body.addEventListener('htmx:afterRequest', (e) => { |
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const evt = e as CustomEvent<HxDetail>; |
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const el = evt.detail.elt; |
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if (!el || !el.getAttribute) return; |
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const always = el.getAttribute('data-hx-always'); |
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if (always && BEHAVIORS[always]) BEHAVIORS[always](el, evt); |
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if (el.hasAttribute('data-hx-always-click')) byId(el.getAttribute('data-hx-always-click'))?.click(); |
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if (!evt.detail.successful) return; |
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const form = el as HTMLFormElement; |
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if (el.hasAttribute('data-hx-reset') && typeof form.reset === 'function') form.reset(); |
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if (el.hasAttribute('data-hx-click')) byId(el.getAttribute('data-hx-click'))?.click(); |
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if (el.hasAttribute('data-hx-get')) { |
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const url = el.getAttribute('data-hx-get'); |
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const target = el.getAttribute('data-hx-target'); |
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if (url && target) htmx.ajax('GET', url, target); |
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} |
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if (el.hasAttribute('data-hx-nav')) window.location.href = el.getAttribute('data-hx-nav') ?? ''; |
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if (el.hasAttribute('data-hx-reload')) window.location.reload(); |
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if (el.hasAttribute('data-hx-toast')) { |
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showToast(el.getAttribute('data-hx-toast') ?? '', el.getAttribute('data-hx-toast-type') || 'info'); |
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} |
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const beh = el.getAttribute('data-hx-behavior'); |
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if (beh && BEHAVIORS[beh]) BEHAVIORS[beh](el, evt); |
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}); |
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document.body.addEventListener('htmx:configRequest', (e) => { |
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const evt = e as CustomEvent<HxDetail>; |
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const el = evt.detail.elt; |
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if (el?.getAttribute?.('data-hx-config') === 'publish-at-iso') { |
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const params = evt.detail.parameters; |
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const v = params?.publish_at; |
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if (v && params) params.publish_at = new Date(v as string).toISOString(); |
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} |
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}); |
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} |
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