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/* Any copyright is dedicated to the Public Domain.
"use strict";
// Test the keyboard shortcut "S" used to scroll to the selected node.
const HTML = `<div style="width: 300px; height: 3000px; position:relative;">
<div id="scroll-top"
style="height: 50px; top: 0; position:absolute;">
TOP</div>
<div id="scroll-bottom"
style="height: 50px; bottom: 0; position:absolute;">
BOTTOM</div>
</div>`;
const TEST_URL = "data:text/html;charset=utf-8," + encodeURIComponent(HTML);
add_task(async function () {
const { inspector } = await openInspectorForURL(TEST_URL);
info("Make sure the markup frame has the focus");
inspector.markup._frame.focus();
info("Before test starts, #scroll-top is visible, #scroll-bottom is hidden");
await checkElementIsInViewport("#scroll-top", true);
await checkElementIsInViewport("#scroll-bottom", false);
info("Select the #scroll-bottom node");
await selectNode("#scroll-bottom", inspector);
info("Press S to scroll to the bottom node");
let waitForScroll = BrowserTestUtils.waitForContentEvent(
gBrowser.selectedBrowser,
"scroll"
);
await EventUtils.synthesizeKey("S", {}, inspector.panelWin);
await waitForScroll;
ok(true, "Scroll event received");
info("#scroll-top should be scrolled out, #scroll-bottom should be visible");
await checkElementIsInViewport("#scroll-top", false);
await checkElementIsInViewport("#scroll-bottom", true);
info("Select the #scroll-top node");
await selectNode("#scroll-top", inspector);
info("Press S to scroll to the top node");
waitForScroll = BrowserTestUtils.waitForContentEvent(
gBrowser.selectedBrowser,
"scroll"
);
await EventUtils.synthesizeKey("S", {}, inspector.panelWin);
await waitForScroll;
ok(true, "Scroll event received");
info("#scroll-top should be visible, #scroll-bottom should be scrolled out");
await checkElementIsInViewport("#scroll-top", true);
await checkElementIsInViewport("#scroll-bottom", false);
info("Select #scroll-bottom node");
await selectNode("#scroll-bottom", inspector);
info("Press shift + S, nothing should happen due to the modifier");
await EventUtils.synthesizeKey("S", { shiftKey: true }, inspector.panelWin);
info("Same state, #scroll-top is visible, #scroll-bottom is scrolled out");
await checkElementIsInViewport("#scroll-top", true);
await checkElementIsInViewport("#scroll-bottom", false);
});
/**
* Verify that the element matching the provided selector is either in or out
* of the viewport, depending on the provided "expected" argument.
* Returns a promise that will resolve when the test has been performed.
*
* @param {String} selector
* css selector for the element to test
* @param {Boolean} expected
* true if the element is expected to be in the viewport, false otherwise
* @return {Promise} promise
*/
async function checkElementIsInViewport(selector, expected) {
const isInViewport = await SpecialPowers.spawn(
gBrowser.selectedBrowser,
[selector],
_selector => {
const node = content.document.querySelector(_selector);
const rect = node.getBoundingClientRect();
return (
rect.bottom >= 0 &&
rect.right >= 0 &&
rect.top <= content.innerHeight &&
rect.left <= content.innerWidth
);
}
);
is(
isInViewport,
expected,
selector + " in the viewport: expected to be " + expected
);
}