WordPress/wp-includes/js/dist/interactivity-router.js

268 lines
9.7 KiB
JavaScript

import * as __WEBPACK_EXTERNAL_MODULE__wordpress_interactivity_8e89b257__ from "@wordpress/interactivity";
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var __webpack_exports__ = {};
// EXPORTS
__webpack_require__.d(__webpack_exports__, {
N: () => (/* binding */ actions),
S: () => (/* binding */ state)
});
;// CONCATENATED MODULE: external "@wordpress/interactivity"
var x = y => { var x = {}; __webpack_require__.d(x, y); return x; }
var y = x => () => x
const interactivity_namespaceObject = x({ ["getConfig"]: () => __WEBPACK_EXTERNAL_MODULE__wordpress_interactivity_8e89b257__.getConfig, ["privateApis"]: () => __WEBPACK_EXTERNAL_MODULE__wordpress_interactivity_8e89b257__.privateApis, ["store"]: () => __WEBPACK_EXTERNAL_MODULE__wordpress_interactivity_8e89b257__.store });
;// CONCATENATED MODULE: ./node_modules/@wordpress/interactivity-router/build-module/index.js
/**
* WordPress dependencies
*/
const {
directivePrefix,
getRegionRootFragment,
initialVdom,
toVdom,
render
} = (0,interactivity_namespaceObject.privateApis)('I acknowledge that using private APIs means my theme or plugin will inevitably break in the next version of WordPress.');
// The cache of visited and prefetched pages.
const pages = new Map();
// Helper to remove domain and hash from the URL. We are only interesting in
// caching the path and the query.
const getPagePath = url => {
const u = new URL(url, window.location);
return u.pathname + u.search;
};
// Fetch a new page and convert it to a static virtual DOM.
const fetchPage = async (url, {
html
}) => {
try {
if (!html) {
const res = await window.fetch(url);
if (res.status !== 200) return false;
html = await res.text();
}
const dom = new window.DOMParser().parseFromString(html, 'text/html');
return regionsToVdom(dom);
} catch (e) {
return false;
}
};
// Return an object with VDOM trees of those HTML regions marked with a
// `router-region` directive.
const regionsToVdom = (dom, {
vdom
} = {}) => {
const regions = {};
const attrName = `data-${directivePrefix}-router-region`;
dom.querySelectorAll(`[${attrName}]`).forEach(region => {
const id = region.getAttribute(attrName);
regions[id] = vdom?.has(region) ? vdom.get(region) : toVdom(region);
});
const title = dom.querySelector('title')?.innerText;
return {
regions,
title
};
};
// Render all interactive regions contained in the given page.
const renderRegions = page => {
const attrName = `data-${directivePrefix}-router-region`;
document.querySelectorAll(`[${attrName}]`).forEach(region => {
const id = region.getAttribute(attrName);
const fragment = getRegionRootFragment(region);
render(page.regions[id], fragment);
});
if (page.title) {
document.title = page.title;
}
};
/**
* Load the given page forcing a full page reload.
*
* The function returns a promise that won't resolve, useful to prevent any
* potential feedback indicating that the navigation has finished while the new
* page is being loaded.
*
* @param {string} href The page href.
* @return {Promise} Promise that never resolves.
*/
const forcePageReload = href => {
window.location.assign(href);
return new Promise(() => {});
};
// Listen to the back and forward buttons and restore the page if it's in the
// cache.
window.addEventListener('popstate', async () => {
const pagePath = getPagePath(window.location); // Remove hash.
const page = pages.has(pagePath) && (await pages.get(pagePath));
if (page) {
renderRegions(page);
// Update the URL in the state.
state.url = window.location.href;
} else {
window.location.reload();
}
});
// Cache the initial page using the intially parsed vDOM.
pages.set(getPagePath(window.location), Promise.resolve(regionsToVdom(document, {
vdom: initialVdom
})));
// Variable to store the current navigation.
let navigatingTo = '';
const {
state,
actions
} = (0,interactivity_namespaceObject.store)('core/router', {
state: {
url: window.location.href,
navigation: {
hasStarted: false,
hasFinished: false,
texts: {}
}
},
actions: {
/**
* Navigates to the specified page.
*
* This function normalizes the passed href, fetchs the page HTML if
* needed, and updates any interactive regions whose contents have
* changed. It also creates a new entry in the browser session history.
*
* @param {string} href The page href.
* @param {Object} [options] Options object.
* @param {boolean} [options.force] If true, it forces re-fetching the URL.
* @param {string} [options.html] HTML string to be used instead of fetching the requested URL.
* @param {boolean} [options.replace] If true, it replaces the current entry in the browser session history.
* @param {number} [options.timeout] Time until the navigation is aborted, in milliseconds. Default is 10000.
* @param {boolean} [options.loadingAnimation] Whether an animation should be shown while navigating. Default to `true`.
* @param {boolean} [options.screenReaderAnnouncement] Whether a message for screen readers should be announced while navigating. Default to `true`.
*
* @return {Promise} Promise that resolves once the navigation is completed or aborted.
*/
*navigate(href, options = {}) {
const {
clientNavigationDisabled
} = (0,interactivity_namespaceObject.getConfig)();
if (clientNavigationDisabled) {
yield forcePageReload(href);
}
const pagePath = getPagePath(href);
const {
navigation
} = state;
const {
loadingAnimation = true,
screenReaderAnnouncement = true,
timeout = 10000
} = options;
navigatingTo = href;
actions.prefetch(pagePath, options);
// Create a promise that resolves when the specified timeout ends.
// The timeout value is 10 seconds by default.
const timeoutPromise = new Promise(resolve => setTimeout(resolve, timeout));
// Don't update the navigation status immediately, wait 400 ms.
const loadingTimeout = setTimeout(() => {
if (navigatingTo !== href) return;
if (loadingAnimation) {
navigation.hasStarted = true;
navigation.hasFinished = false;
}
if (screenReaderAnnouncement) {
navigation.message = navigation.texts.loading;
}
}, 400);
const page = yield Promise.race([pages.get(pagePath), timeoutPromise]);
// Dismiss loading message if it hasn't been added yet.
clearTimeout(loadingTimeout);
// Once the page is fetched, the destination URL could have changed
// (e.g., by clicking another link in the meantime). If so, bail
// out, and let the newer execution to update the HTML.
if (navigatingTo !== href) return;
if (page) {
renderRegions(page);
window.history[options.replace ? 'replaceState' : 'pushState']({}, '', href);
// Update the URL in the state.
state.url = href;
// Update the navigation status once the the new page rendering
// has been completed.
if (loadingAnimation) {
navigation.hasStarted = false;
navigation.hasFinished = true;
}
if (screenReaderAnnouncement) {
// Announce that the page has been loaded. If the message is the
// same, we use a no-break space similar to the @wordpress/a11y
// package: https://github.com/WordPress/gutenberg/blob/c395242b8e6ee20f8b06c199e4fc2920d7018af1/packages/a11y/src/filter-message.js#L20-L26
navigation.message = navigation.texts.loaded + (navigation.message === navigation.texts.loaded ? '\u00A0' : '');
}
} else {
yield forcePageReload(href);
}
},
/**
* Prefetchs the page with the passed URL.
*
* The function normalizes the URL and stores internally the fetch
* promise, to avoid triggering a second fetch for an ongoing request.
*
* @param {string} url The page URL.
* @param {Object} [options] Options object.
* @param {boolean} [options.force] Force fetching the URL again.
* @param {string} [options.html] HTML string to be used instead of
* fetching the requested URL.
*/
prefetch(url, options = {}) {
const {
clientNavigationDisabled
} = (0,interactivity_namespaceObject.getConfig)();
if (clientNavigationDisabled) return;
const pagePath = getPagePath(url);
if (options.force || !pages.has(pagePath)) {
pages.set(pagePath, fetchPage(pagePath, options));
}
}
}
});
var __webpack_exports__actions = __webpack_exports__.N;
var __webpack_exports__state = __webpack_exports__.S;
export { __webpack_exports__actions as actions, __webpack_exports__state as state };