chromium/src/third_party/blink/web_tests/external/wpt/resource-timing/resources/nested-contexts.js

let destination = location;
if (location.search == "?crossorigin") {
    const host_info = get_host_info()
    destination = location.protocol + "//" + host_info["REMOTE_HOST"] + ":" + location.port;
}

const pre_navigate_url = new URL("/resource-timing/resources/document-that-navigates.html", destination).href;
const post_navigate_url = new URL("/resource-timing/resources/document-navigated.html", destination).href;
const pre_refresh_url = new URL("/resource-timing/resources/document-that-refreshes.html", destination).href;
const post_refresh_url = new URL("/resource-timing/resources/document-refreshed.html", destination).href;

function setup_navigate_or_refresh(type, pre, post) {
    function verify_document_navigate_not_observable() {
        let entries = performance.getEntriesByType("resource");
        let found_first_document = false;
        for (entry of entries) {
            if (entry.name == pre) {
                found_first_document = true;
            }
            if (entry.name == post) {
                opener.postMessage("FAIL - " + type + " document should not be observable", "*");
                return;
            }
        }
        if (!found_first_document) {
            opener.postMessage("FAIL - initial document should be observable", "*");
            return;
        }
        opener.postMessage("PASS", "*");
    }
    window.addEventListener("message", e=>{
        if (e.data == type) {
            verify_document_navigate_not_observable();
        }
    });
}

function setup_navigate_test() {
    setup_navigate_or_refresh("navigated", pre_navigate_url, post_navigate_url);
}

function setup_refresh_test() {
    setup_navigate_or_refresh("refreshed", pre_refresh_url, post_refresh_url);
}

function setup_back_navigation(pushed_url) {
    function verify_document_navigate_not_observable(navigated_back) {
        let entries = performance.getEntriesByType("resource");
        let found_first_document = false;
        for (entry of entries) {
            if (entry.name == pre_navigate_url) {
                found_first_document = true;
            }
            if (entry.name == post_navigate_url) {
                opener.postMessage("FAIL - navigated document exposed", "*");
                return;
            }
        }
        if (!found_first_document) {
            opener.postMessage("FAIL - first document not exposed. navigated_back is " + navigated_back, "*");
            return;
        }
        if (navigated_back) {
            opener.postMessage("PASS", "*");
        }
    }
    window.addEventListener("message", e=>{
        if (e.data == "navigated") {
            verify_document_navigate_not_observable(sessionStorage.navigated);
            if (sessionStorage.navigated) {
                delete sessionStorage.navigated;
            } else {
                sessionStorage.navigated = true;
                setTimeout(() => {
                    history.pushState({}, "", pushed_url);
                    location.href="navigate_back.html";
                }, 0);
            }
        }
    });
}

function open_test_window(url, message) {
    promise_test(() => {
        return new Promise((resolve, reject) => {
            let openee = window.open(url);
            addEventListener("message", e => {
                openee.close();
                if (e.data == "PASS") {
                    resolve();
                } else {
                    reject(e.data);
                }
            });
        });
    }, message);
}