gecko-dev/dom/browser-element/mochitest/browserElement_ScrollEvent.js

35 строки
1.3 KiB
JavaScript

/* Any copyright is dedicated to the public domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
// Test that scroll event bubbles up.
"use strict";
/* global browserElementTestHelpers */
SimpleTest.waitForExplicitFinish();
browserElementTestHelpers.setEnabledPref(true);
browserElementTestHelpers.addPermission();
browserElementTestHelpers.allowTopLevelDataURINavigation();
function runTest() {
var iframe = document.createElement("iframe");
iframe.setAttribute("mozbrowser", "true");
document.body.appendChild(iframe);
iframe.addEventListener("mozbrowserscroll", function(e) {
ok(true, "got mozbrowserscroll event.");
ok(e.detail, "event.detail is not null.");
is(Math.round(e.detail.top), 4000, "top position is correct.");
is(Math.round(e.detail.left), 4000, "left position is correct.");
SimpleTest.finish();
});
// We need a viewport meta tag to allow us to scroll to (4000, 4000). Without
// the viewport meta tag, we shrink the (5000, 5000) content so that we can't
// have enough space to scroll to the point in the layout viewport.
iframe.src =
"data:text/html,<html><meta name='viewport' content='width=device-width,minimum-scale=1,initial-scale=1'><body style='min-height: 5000px; min-width: 5000px;'></body><script>window.scrollTo(4000, 4000);</script></html>";
}
addEventListener("testready", runTest);