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Name	Size	Last Modified
[F]BarProp-impl.js Edit	318 bytes	2022-10-08 17:28:25
[F]External-impl.js Edit	277 bytes	2022-10-08 17:28:31
[F]History-impl.js Edit	4.38 KB	2022-10-08 17:28:32
[F]Location-impl.js Edit	5.92 KB	2022-10-08 17:28:34
[F]Screen-impl.js Edit	353 bytes	2022-10-08 17:28:35
[F]SessionHistory.js Edit	5.71 KB	2022-10-08 17:28:35
[F]navigation.js Edit	3.00 KB	2022-10-08 17:28:34

Editing: navigation.js

"use strict";
const whatwgURL = require("whatwg-url");
const notImplemented = require("../../browser/not-implemented.js");
const reportException = require("../helpers/runtime-script-errors.js");
const idlUtils = require("../generated/utils.js");

exports.evaluateJavaScriptURL = (window, urlRecord) => {
  const urlString = whatwgURL.serializeURL(urlRecord);
  const scriptSource = whatwgURL.percentDecode(Buffer.from(urlString)).toString();
  if (window._runScripts === "dangerously") {
    try {
      return window.eval(scriptSource);
    } catch (e) {
      reportException(window, e, urlString);
    }
  }
  return undefined;
};

// https://html.spec.whatwg.org/#navigating-across-documents
exports.navigate = (window, newURL, flags) => {
  // This is NOT a spec-compliant implementation of navigation in any way. It implements a few selective steps that
  // are nice for jsdom users, regarding hash changes and JavaScript URLs. Full navigation support is being worked on
  // and will likely require some additional hooks to be implemented.
  if (!window._document) {
    return;
  }

const document = idlUtils.implForWrapper(window._document);
  const currentURL = document._URL;

if (!flags.reloadTriggered && urlEquals(currentURL, newURL, { excludeFragments: true })) {
    if (newURL.fragment !== currentURL.fragment) {
      navigateToFragment(window, newURL, flags);
    }
    return;
  }

// NOT IMPLEMENTED: Prompt to unload the active document of browsingContext.

// NOT IMPLEMENTED: form submission algorithm
  // const navigationType = 'other';

// NOT IMPLEMENTED: if resource is a response...
  if (newURL.scheme === "javascript") {
    setTimeout(() => {
      const result = exports.evaluateJavaScriptURL(window, newURL);
      if (typeof result === "string") {
        notImplemented("string results from 'javascript:' URLs", window);
      }
    }, 0);
    return;
  }
  navigateFetch(window);
};

// https://html.spec.whatwg.org/#scroll-to-fragid
function navigateToFragment(window, newURL, flags) {
  const document = idlUtils.implForWrapper(window._document);

window._sessionHistory.clearHistoryTraversalTasks();

if (!flags.replacement) {
    // handling replacement=true here deviates from spec, but matches real browser behaviour
    // see https://github.com/whatwg/html/issues/2796 for spec bug
    window._sessionHistory.removeAllEntriesAfterCurrentEntry();
  }
  const newEntry = { document, url: newURL };
  window._sessionHistory.addEntryAfterCurrentEntry(newEntry);
  window._sessionHistory.traverseHistory(newEntry, { nonBlockingEvents: true, replacement: flags.replacement });
}

// https://html.spec.whatwg.org/#process-a-navigate-fetch
function navigateFetch(window) {
  // TODO:
  notImplemented("navigation (except hash changes)", window);
}

// https://url.spec.whatwg.org/#concept-url-equals
function urlEquals(a, b, flags) {
  const serializedA = whatwgURL.serializeURL(a, flags.excludeFragments);
  const serializedB = whatwgURL.serializeURL(b, flags.excludeFragments);
  return serializedA === serializedB;
}

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