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video.js/test/unit/poster.test.js
Gary Katsevman 9ceb4e4fe0
feat: playerresize event in all cases (#4864)
Use ResizeObserver when available for better and more performant resizing information, otherwise, fall back to a throttled resize event on an iframe that's the size of the player.
Allows a video.js user to disable this by setting resizeManager: false as an option since the component will not be initialized.

Add a debounce util.

This reverts #4800 (e0ed0b5) because we end up getting two playerresize events with the dimension methods now.
2018-01-30 13:26:21 -05:00

119 lines
3.9 KiB
JavaScript

/* eslint-env qunit */
import PosterImage from '../../src/js/poster-image.js';
import * as browser from '../../src/js/utils/browser.js';
import TestHelpers from './test-helpers.js';
import document from 'global/document';
QUnit.module('PosterImage', {
beforeEach() {
// Store the original background support so we can test different vals
this.origVal = browser.BACKGROUND_SIZE_SUPPORTED;
this.poster1 = '#poster1';
this.poster2 = '#poster2';
// Create a mock player object that responds as a player would
this.mockPlayer = {
poster_: this.poster1,
poster() {
return this.poster_;
},
handler_: null,
off() {},
on(type, handler) {
this.handler_ = handler;
},
trigger(type) {
this.handler_.call();
}
};
},
afterEach() {
browser.BACKGROUND_SIZE_SUPPORTED = this.origVal;
}
});
QUnit.test('should create and update a poster image', function(assert) {
browser.BACKGROUND_SIZE_SUPPORTED = true;
const posterImage = new PosterImage(this.mockPlayer);
let backgroundImage = posterImage.el().style.backgroundImage;
assert.notEqual(backgroundImage.indexOf(this.poster1), -1, 'Background image used');
// Update with a new poster source and check the new value
this.mockPlayer.poster_ = this.poster2;
this.mockPlayer.trigger('posterchange');
backgroundImage = posterImage.el().style.backgroundImage;
assert.notEqual(backgroundImage.indexOf(this.poster2), -1, 'Background image updated');
posterImage.dispose();
});
QUnit.test('should create and update a fallback image in older browsers', function(assert) {
browser.BACKGROUND_SIZE_SUPPORTED = false;
const posterImage = new PosterImage(this.mockPlayer);
assert.notEqual(posterImage.fallbackImg_.src.indexOf(this.poster1),
-1,
'Fallback image created');
// Update with a new poster source and check the new value
this.mockPlayer.poster_ = this.poster2;
this.mockPlayer.trigger('posterchange');
assert.notEqual(posterImage.fallbackImg_.src.indexOf(this.poster2),
-1,
'Fallback image updated');
posterImage.dispose();
});
QUnit.test('should remove itself from the document flow when there is no poster', function(assert) {
const posterImage = new PosterImage(this.mockPlayer);
assert.equal(posterImage.el().style.display, '', 'Poster image shows by default');
// Update with an empty string
this.mockPlayer.poster_ = '';
this.mockPlayer.trigger('posterchange');
assert.equal(posterImage.hasClass('vjs-hidden'),
true,
'Poster image hides with an empty source');
// Updated with a valid source
this.mockPlayer.poster_ = this.poster2;
this.mockPlayer.trigger('posterchange');
assert.equal(posterImage.hasClass('vjs-hidden'),
false,
'Poster image shows again when there is a source');
posterImage.dispose();
});
QUnit.test('should hide the poster in the appropriate player states', function(assert) {
const posterImage = new PosterImage(this.mockPlayer);
const playerDiv = document.createElement('div');
const fixture = document.getElementById('qunit-fixture');
const el = posterImage.el();
// Remove the source so when we add to the DOM it doesn't throw an error
// We want to poster to still think it has a real source so it doesn't hide itself
posterImage.setSrc('');
// Add the elements to the DOM so styles are computed
playerDiv.appendChild(el);
fixture.appendChild(playerDiv);
playerDiv.className = 'video-js vjs-has-started';
assert.equal(TestHelpers.getComputedStyle(el, 'display'),
'none',
'The poster hides when the video has started (CSS may not be loaded)');
playerDiv.className = 'video-js vjs-has-started vjs-audio';
assert.equal(TestHelpers.getComputedStyle(el, 'display'),
'block',
'The poster continues to show when playing audio');
posterImage.dispose();
});