9e487b03e5
* also apply live-preview if an unsaved style was disabled * use box-shadow instead of outline for focus everywhere * allow focus outline on click in text/search input or textarea * search inputs should use the same style as text inputs * also use box-shadow focus on delete buttons * remove URLSearchParams workaround, not needed since Chrome 55 * use `once` in addEventListener, available since Chrome 55 * update USO bug workarounds, remove obsolete ones * ping/pong to fix openURL with `message` in FF * use unprefixed CSS filter, available since Chrome 53 * use unprefixed CSS user-select, available since Chrome 54 * focus tweaks * also use text query in inline search for Stylus category * use event.key, available since Chrome 51 Co-authored-by: narcolepticinsomniac
90 lines
2.5 KiB
JavaScript
90 lines
2.5 KiB
JavaScript
/* global deepEqual msg */
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/* exported router */
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'use strict';
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const router = (() => {
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const buffer = [];
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const watchers = [];
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document.addEventListener('DOMContentLoaded', () => update());
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window.addEventListener('popstate', () => update());
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window.addEventListener('hashchange', () => update());
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msg.on(e => {
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if (e.method === 'pushState' && e.url !== location.href) {
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history.pushState(history.state, null, e.url);
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update();
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return true;
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}
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});
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return {watch, updateSearch, getSearch, updateHash};
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function watch(options, callback) {
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/* Watch search params or hash and get notified on change.
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options: {search?: Array<key: String>, hash?: String}
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callback: (Array<value: String | null> | Boolean) => void
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`hash` should always start with '#'.
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When watching search params, callback receives a list of values.
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When watching hash, callback receives a boolean.
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*/
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watchers.push({options, callback});
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}
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function updateSearch(key, value) {
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const u = new URL(location);
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u.searchParams[value ? 'set' : 'delete'](key, value);
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history.replaceState(history.state, null, `${u}`);
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update(true);
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}
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function updateHash(hash) {
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/* hash: String
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Send an empty string to remove the hash.
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*/
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if (buffer.length > 1) {
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if (!hash && !buffer[buffer.length - 2].includes('#') ||
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hash && buffer[buffer.length - 2].endsWith(hash)) {
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history.back();
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return;
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}
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}
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if (!hash) {
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hash = ' ';
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}
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history.pushState(history.state, null, hash);
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update();
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}
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function getSearch(key) {
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return new URLSearchParams(location.search).get(key);
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}
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function update(replace) {
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if (!buffer.length) {
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buffer.push(location.href);
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} else if (buffer[buffer.length - 1] === location.href) {
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return;
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} else if (replace) {
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buffer[buffer.length - 1] = location.href;
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} else if (buffer.length > 1 && buffer[buffer.length - 2] === location.href) {
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buffer.pop();
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} else {
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buffer.push(location.href);
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}
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for (const {options, callback} of watchers) {
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let state;
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if (options.hash) {
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state = options.hash === location.hash;
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} else if (options.search) {
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const search = new URLSearchParams(location.search);
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state = options.search.map(key => search.get(key));
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}
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if (!deepEqual(state, options.currentState)) {
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options.currentState = state;
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callback(state);
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}
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}
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}
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})();
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