<!DOCTYPE html>
<html>
<head>
<script src="../resources/js-test.js"></script>
<script src="file:///gen/layout_test_data/mojo/public/js/mojo_bindings.js"></script>
<script src="file:///gen/device/geolocation/public/interfaces/geolocation.mojom.js"></script>
<script src="file:///gen/third_party/blink/public/mojom/geolocation/geolocation_service.mojom.js"></script>
<script src="file:///gen/third_party/blink/public/mojom/permissions/permission.mojom.js"></script>
<script src="resources/geolocation-mock.js"></script>
</head>
<body>
<script>
description("Tests that watchPosition does not report position changes when the page is not visible.");
window.jsTestIsAsync = true;

if (!window.testRunner)
    debug('This test can not run without testRunner');

var position;
var error;
var isPageVisible = true;

let mock = geolocationMock;
mock.setGeolocationPermission(true);

debug("* Page is visible");

var mockLatitude = 51.478;
var mockLongitude = -0.166;
var mockAccuracy = 100.0;

function updatePosition() {
    if (!window.testRunner)
        return;
    ++mockLatitude;
    ++mockLongitude;
    mock.setGeolocationPosition(mockLatitude, mockLongitude, mockAccuracy);
    debug('device moved to (' + mockLatitude + ', ' + mockLongitude + ')');
}

updatePosition();

var state = 0;

function checkPosition(p) {
    position = p;
    shouldBe('position.coords.latitude', '' + mockLatitude);
    shouldBe('position.coords.longitude', '' + mockLongitude);
    debug('');
}

function showPageAndUpdatePosition() {
    shouldBeFalse('isPageVisible');
    debug('');
    state++;
    if (window.testRunner) {
        debug("*Showing page");
        testRunner.setPageVisibility("visible");
        isPageVisible = true;
    }
    updatePosition();
}

navigator.geolocation.watchPosition(function(p) {
    debug("Page is notified of the position change");
    shouldBeTrue('isPageVisible');
    state++;
    checkPosition(p);
    switch(state) {
        case 2: {
            if (window.testRunner) {
                debug("* Hiding page");
                testRunner.setPageVisibility("hidden");
                isPageVisible = false;
            }
            setTimeout(showPageAndUpdatePosition, 100);
            break;
        }
        case 4:
            finishJSTest();
            return;
    }
    updatePosition();
}, function(e) {
    testFailed('Error callback invoked unexpectedly');
    finishJSTest();
});

</script>
</body>
</html>