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52 lines
2.2 KiB
TypeScript
52 lines
2.2 KiB
TypeScript
// A plugin moving the tab to one of its own pages (api.ui.openPage): a link
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// in its dialog or banner to a record its page shows. Only the plugin's own
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// pages, so a plugin can never send the tab anywhere else; the path is the
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// one the `app-page` slot gets as `path`. The app's router answers through
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// the handler PluginPageNavigator sets; without one (nothing mounted yet)
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// the request resolves to false and the plugin can open a tab instead.
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import { findPage } from './pages';
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import { pluginPageHref } from '@/hooks/use-plugin-pages';
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/** The longest path a plugin may pass. */
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export const MAX_PAGE_PATH_LENGTH = 2000;
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export type PageNavigationHandler = (href: string) => void;
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let handler: PageNavigationHandler | null = null;
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export function onPageNavigation(next: PageNavigationHandler): () => void {
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handler = next;
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return () => { if (handler === next) handler = null; };
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}
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/**
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* The in-app href of a plugin's page and a path below it, each segment
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* encoded once (the route decodes each once), or an error the plugin sees.
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*/
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export function pagePathHref(pluginId: string, pageId: unknown, path: unknown): string {
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if (typeof pageId !== 'string' || !findPage(pluginId, pageId)) {
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throw new Error(`ui.openPage: "${String(pageId)}" is not a page of this plugin`);
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}
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const href = pluginPageHref({ pluginId, id: pageId });
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if (path === undefined || path === null || path === '') return href;
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if (typeof path !== 'string') throw new Error('ui.openPage: path must be a string');
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if (path.length > MAX_PAGE_PATH_LENGTH) throw new Error(`ui.openPage: path longer than ${MAX_PAGE_PATH_LENGTH} characters`);
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const segments = path.replace(/^\/+/, '').split('/');
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if (segments.some((s) => s === '.' || s === '..')) throw new Error('ui.openPage: path must not contain "." or ".." segments');
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return `${href}/${segments.map(encodeURIComponent).join('/')}`;
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}
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/** Checks the request and moves the tab: true when it went, false when nothing could take it. */
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export function requestPageNavigation(pluginId: string, pageId: unknown, path: unknown): boolean {
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const href = pagePathHref(pluginId, pageId, path);
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if (!handler) return false;
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handler(href);
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return true;
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}
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/** Test helper. */
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export function resetPageNavigation(): void {
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handler = null;
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}
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