blob: 9eac7f74fbc0ff3e1d2a311a6bbdd3d2eb262572 [file] [log] [blame]
<!DOCTYPE html>
<!--
@license
Copyright (C) 2017 The Android Open Source Project
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
<title>gr-fixed-panel</title>
<script src="../../../bower_components/webcomponentsjs/webcomponents-lite.min.js"></script>
<script src="../../../bower_components/web-component-tester/browser.js"></script>
<link rel="import" href="../../../test/common-test-setup.html"/>
<link rel="import" href="gr-fixed-panel.html">
<script>void(0);</script>
<test-fixture id="basic">
<template>
<gr-fixed-panel>
<div style="height: 100px"></div>
</gr-fixed-panel>
</template>
</test-fixture>
<script>
suite('gr-fixed-panel', () => {
let element;
let sandbox;
setup(() => {
sandbox = sinon.sandbox.create();
element = fixture('basic');
element.readyForMeasure = true;
});
teardown(() => {
sandbox.restore();
});
test('can be disabled with floatingDisabled', () => {
element.floatingDisabled = true;
sandbox.stub(element, '_reposition');
window.dispatchEvent(new CustomEvent('resize'));
element.flushDebouncer('update');
assert.isFalse(element._reposition.called);
});
test('header is the height of the content', () => {
assert.equal(element.getBoundingClientRect().height, 100);
});
test('scroll triggers _reposition', () => {
sandbox.stub(element, '_reposition');
window.dispatchEvent(new CustomEvent('scroll'));
element.flushDebouncer('update');
assert.isTrue(element._reposition.called);
});
suite('_reposition', () => {
const getHeaderTop = function() {
return element.$.header.style.top;
};
const emulateScrollY = function(distance) {
element._getElementTop.returns(element._headerTopInitial - distance);
element._updateDebounced();
element.flushDebouncer('scroll');
};
setup(() => {
element._headerTopInitial = 10;
sandbox.stub(element, '_getElementTop')
.returns(element._headerTopInitial);
});
test('scrolls header along with document', () => {
emulateScrollY(20);
// No top property is set when !_headerFloating.
assert.equal(getHeaderTop(), '');
});
test('does not stick to the top by default', () => {
emulateScrollY(150);
// No top property is set when !_headerFloating.
assert.equal(getHeaderTop(), '');
});
test('sticks to the top if enabled', () => {
element.keepOnScroll = true;
emulateScrollY(120);
assert.equal(getHeaderTop(), '0px');
});
test('drops a shadow when fixed to the top', () => {
element.keepOnScroll = true;
emulateScrollY(5);
assert.isFalse(element.$.header.classList.contains('fixedAtTop'));
emulateScrollY(120);
assert.isTrue(element.$.header.classList.contains('fixedAtTop'));
});
});
});
</script>