mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-26 17:46:26 +03:00
Sandra Lokshina
121b615c3e
What's already done: - UIElement and IUIElement interface - All elements register themselves with controls - Each element is responsible for its' behavior - A bit of clean up with constants/enums moving to their own files What is not done yet: - Overflow menu is a dumping ground now. Its' elements will move to the UIElement model eventually, too. - Build files are hacked a bit and will need more attention. - No clean up has been done except for the constants/enums. Change-Id: I9917aa705e85158a2f26830bd988552fe177e53b
84 lines
2.2 KiB
JavaScript
84 lines
2.2 KiB
JavaScript
/**
|
|
* @license
|
|
* Copyright 2016 Google Inc.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
|
|
goog.provide('shaka.ui.Utils');
|
|
|
|
goog.require('goog.asserts');
|
|
|
|
|
|
/**
|
|
* @param {!HTMLElement} element
|
|
* @param {string} className
|
|
* @return {!HTMLElement}
|
|
* @export
|
|
*/
|
|
shaka.ui.Utils.getFirstDescendantWithClassName = function(element, className) {
|
|
let descendant = shaka.ui.Utils.getDescendantIfExists(element, className);
|
|
goog.asserts.assert(descendant != null, 'Should not be null!');
|
|
|
|
return descendant;
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {!HTMLElement} element
|
|
* @param {string} className
|
|
* @return {?HTMLElement}
|
|
*/
|
|
shaka.ui.Utils.getDescendantIfExists = function(element, className) {
|
|
let childrenWithClassName = element.getElementsByClassName(className);
|
|
if (childrenWithClassName.length) {
|
|
return /** @type {!HTMLElement} */ (childrenWithClassName[0]);
|
|
}
|
|
|
|
return null;
|
|
};
|
|
|
|
|
|
/**
|
|
* Return true if the content is Transport Stream.
|
|
* Used to decide if caption button is shown all the time in the demo,
|
|
* and whether to show 'Default Text' as a Text Track option.
|
|
*
|
|
* @param {shaka.Player} player
|
|
* @return {boolean}
|
|
*/
|
|
shaka.ui.Utils.isTsContent = function(player) {
|
|
let activeTracks = player.getVariantTracks().filter(function(track) {
|
|
return track.active == true;
|
|
});
|
|
let activeTrack = activeTracks[0];
|
|
if (activeTrack) {
|
|
return activeTrack.mimeType == 'video/mp2t';
|
|
}
|
|
return false;
|
|
};
|
|
|
|
|
|
/**
|
|
* Creates an element, and cast the type from Element to HTMLElement.
|
|
*
|
|
* @param {string} tagName
|
|
* @return {!HTMLElement}
|
|
*/
|
|
shaka.ui.Utils.createHTMLElement = function(tagName) {
|
|
const element =
|
|
/** @type {!HTMLElement} */ (document.createElement(tagName));
|
|
return element;
|
|
};
|