mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-16 16:16:40 +03:00
Joey Parrish
f539147d48
This fixes all the license headers in the main library, which corrects the appearance of the main license in the compiled output. It seems that the `!` in the header forces the compiler to keep it in the output. I believe older compiler releases did this purely based on `@license`. Issue #2638 Change-Id: I7f0e918caad10c9af689c9d07672b7fe9be7b2f3
127 lines
3.2 KiB
JavaScript
127 lines
3.2 KiB
JavaScript
/*! @license
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* Shaka Player
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* Copyright 2016 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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goog.provide('shaka.ui.Utils');
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goog.require('goog.asserts');
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shaka.ui.Utils = class {
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/**
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* @param {!HTMLElement} element
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* @param {string} className
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* @return {!HTMLElement}
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*/
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// TODO: This can be replaced by shaka.util.Dom.getElementByClassName
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static getFirstDescendantWithClassName(element, className) {
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const descendant = shaka.ui.Utils.getDescendantIfExists(element, className);
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goog.asserts.assert(descendant != null, 'Should not be null!');
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return descendant;
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}
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/**
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* @param {!HTMLElement} element
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* @param {string} className
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* @return {?HTMLElement}
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*/
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static getDescendantIfExists(element, className) {
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const childrenWithClassName = element.getElementsByClassName(className);
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if (childrenWithClassName.length) {
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return /** @type {!HTMLElement} */ (childrenWithClassName[0]);
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}
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return null;
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}
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/**
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* Finds a descendant of |menu| that has a 'shaka-chosen-item' class
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* and focuses on its' parent.
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*
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* @param {HTMLElement} menu
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*/
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static focusOnTheChosenItem(menu) {
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if (!menu) {
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return;
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}
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const chosenItem = shaka.ui.Utils.getDescendantIfExists(
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menu, 'shaka-chosen-item');
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if (chosenItem) {
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chosenItem.parentElement.focus();
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}
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}
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/**
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* @return {!Element}
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*/
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static checkmarkIcon() {
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const icon = shaka.util.Dom.createHTMLElement('i');
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icon.classList.add('material-icons-round');
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icon.classList.add('shaka-chosen-item');
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icon.textContent = shaka.ui.Enums.MaterialDesignIcons.CHECKMARK;
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// Screen reader should ignore icon text.
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icon.setAttribute('aria-hidden', 'true');
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return icon;
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}
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/**
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* Depending on the value of display, sets/removes the css class of element to
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* either display it or hide it.
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*
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* @param {Element} element
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* @param {boolean} display
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*/
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static setDisplay(element, display) {
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if (!element) {
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return;
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}
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// You can't use setDisplay with SVG on IE, because classList isn't on SVG
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// elements on that browser. It's better to find out on Chrome through an
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// assertion, rather than wait for a failed test pass later on IE.
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goog.asserts.assert(!(element instanceof SVGElement),
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'Do not use setDisplay with SVG elements!');
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if (display) {
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// Removing a non-existent class doesn't throw, so, even if
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// the element is not hidden, this should be fine.
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element.classList.remove('shaka-hidden');
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} else {
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element.classList.add('shaka-hidden');
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}
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}
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/**
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* Builds a time string, e.g., 01:04:23, from |displayTime|.
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*
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* @param {number} displayTime (in seconds)
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* @param {boolean} showHour
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* @return {string}
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*/
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static buildTimeString(displayTime, showHour) {
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const h = Math.floor(displayTime / 3600);
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const m = Math.floor((displayTime / 60) % 60);
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let s = Math.floor(displayTime % 60);
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if (s < 10) {
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s = '0' + s;
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}
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let text = m + ':' + s;
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if (showHour) {
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if (m < 10) {
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text = '0' + text;
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}
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text = h + ':' + text;
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}
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return text;
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}
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};
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