98 lines
3.5 KiB
JavaScript
98 lines
3.5 KiB
JavaScript
'use strict';
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const { History } = require('hydrogen-view-sdk');
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const assert = require('./assert');
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// Mock a full hash whenever someone asks via `history.get()` but when
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// constructing URL's for use `href` etc, they should relative to the room
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// (remove session and room from the hash).
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class ArchiveHistory extends History {
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constructor(baseHash) {
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assert(baseHash);
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super();
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this._baseHash = baseHash;
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}
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// Even though the page hash is relative to the room, we still expose the full
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// hash for Hydrogen to route things internally as expected.
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get() {
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const documentHash = document?.location?.hash;
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const hash = documentHash?.replace(/^#/, '') ?? '';
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return this._baseHash + hash;
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}
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replaceUrlSilently(url) {
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// We don't need to do this when server-side rendering in Node.js because
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// the #hash is not available to servers. This will be called as a
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// downstream call of `urlRouter.attach()` which we do when bootstraping
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// everything.
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if (window.history) {
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let replacingUrl;
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// Hydrogen hash routing on the end of the URL
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if (url.startsWith('#')) {
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replacingUrl = url;
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}
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// Hydrogen hash routing: This is the sign that Hydrogen is navigating back to the
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// root. Because of our custom archive logic, the `#` is removed before it gets
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// here. But we just want to make sure the hash gets cleared out while maintaining
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// our path and query parameters.
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//
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// Before: /foo?search=bar#/developer-options
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// pushUrlSilently(url='')
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// After: /foo?search=bar
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else if (url === '') {
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replacingUrl = document?.location?.pathname + document?.location?.search;
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}
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// Otherwise, it's probably an absolute URL that we can totally replace the page
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// URL with
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else {
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replacingUrl = url;
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}
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super.replaceUrlSilently(replacingUrl);
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}
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}
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pushUrlSilently(url) {
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let replacingUrl;
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// Hydrogen hash routing on the end of the URL
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if (url.startsWith('#')) {
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replacingUrl = url;
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}
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// Hydrogen hash routing: This is the sign that Hydrogen is navigating back to the
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// root. Because of our custom archive logic, the `#` is removed before it gets
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// here. But we just want to make sure the hash gets cleared out while maintaining
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// our path and query parameters.
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//
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// Before: /foo?search=bar#/developer-options
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// pushUrlSilently(url='')
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// After: /foo?search=bar
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else if (url === '') {
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replacingUrl = document?.location?.pathname + document?.location?.search;
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}
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// Otherwise, it's probably an absolute URL that we can totally replace the page
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// URL with
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else {
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replacingUrl = url;
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}
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super.pushUrlSilently(replacingUrl);
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}
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// Make the URLs we use in the UI of the app relative to the room:
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// Before: #/session/123/room/!HBehERstyQBxyJDLfR:my.synapse.server/lightbox/$17cgP6YBP9ny9xuU1vBmpOYFhRG4zpOe9SOgWi2Wxsk
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// After: #/lightbox/$17cgP6YBP9ny9xuU1vBmpOYFhRG4zpOe9SOgWi2Wxsk
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pathAsUrl(path) {
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const leftoverPath = super.pathAsUrl(path).replace(this._baseHash, '');
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// Only add back the hash when there is hash content beyond the base so we
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// don't end up with an extraneous `#` on the end of the URL. This will end
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// up creating some `<a href="">` (anchors with a blank href) but we have
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// some code to clean this up, see `supressBlankAnchorsReloadingThePage`.
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if (leftoverPath.length) {
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return `#${leftoverPath}`;
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}
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return leftoverPath;
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}
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}
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module.exports = ArchiveHistory;
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