A simple and customizable MP4 video player web component created using Polymer 3.
$ npm install --save @thuoe/mp4-video-player
import { PolymerElement, html } from '@polymer/polymer';
import '@thuoe/mp4-video-player';
class SampleElement extends PolymerElement {
static get template() {
return html`
<mp4-video-player></mp4-video-player>
`;
}
}
customElements.define('sample-element', SampleElement);$ npm start
This involves using the Polymer CLI command polymer serve.
First, make sure you have the Polymer CLI and npm (packaged with Node.js) installed. Run npm install to install the element's dependencies. This development server will transpile ES6 code to ES5 using Babel during runtime.
The live demo page will be available to view via http://127.0.0.1:8081/components/@thuoe/mp4-video-player/
$ npm test
$ npm run lint
The following properties below are accessible and writable to use:
| Property | Description | Type | Default Value |
|---|---|---|---|
title |
Title positioned on top of the video player | String | undefined |
src |
File path to .mp4 video | String | undefined |
poster |
File path to poster image. It can be a relative or absolute URL | String | undefined |
timelinePreview |
Determines if the timeline preview above the track appears when hovering | Boolean | false |
autoPlay |
Whether the video should start playing as soon as it is loaded | Boolean | false |
loop |
Whether the video should start over again, every time it is finished | Boolean | false |
volume |
The volume scaled from 0-1 | Number | 0.5 |
time |
The current time in seconds of the video playback | Number | 0 |
skipBy |
Skip ahead or behind (in seconds) the current time based on the right or left arrow keys respectively | Number | 5 |
The following properties below are accessible but cannot be altered dynamically:
| Read-only property | Description | Type | Default Value |
|---|---|---|---|
duration |
The total duration of the video file after it has loaded | Number | 0 |
playing |
If the video is playing | Boolean | false |
muted |
If the video is muted | Boolean | false |
ended |
If the video has ended | Boolean | false |
fullscreen |
If the video is in fullscreen mode | Boolean | false |
The following custom CSS variables are also available for custom styling the video player:
| Custom property | Description | Default Value |
|---|---|---|
--video-title-color |
Color of the video title | rgba(255,255,255,.9) |
--video-large-play-button-color |
Large play button color | #d32f2f |
--video-large-play-button-hover-color |
Large play button hover color | #9a0007 |
--video-track-fill-color |
Track fill color | #d32f2f |
--video-thumb-color |
Thumb color used for dragging | #fff |
--video-control-icons-background-hover-color |
Control icons background hover color | #d32f2f |
---video-time-preview-background-color |
Timeline preview background color | #d32f2f |
--video-menu-background-color |
Menu background color | rgba(255,255,255,.9) |
--video-menu-item-color |
Menu item background color | rgba(255,255,255,.9) |
--video-menu-item-icon-color |
Menu icon color | black |
--video-menu-item-hover-color |
Menu item hover color | #d32f2f |
--video-menu-item-icon-hover-color |
Menu icon hover color | white |
--video-tooltip-background-color |
Tooltip background color | rgba(255,255,255,.9) |
--video-pulse-icon-color |
Pulse icon background color | #d32f2f |
--video-font-family |
Font-family used throughout video player | Arial, Helvetica, sans-serif |
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, minimum-scale=1, initial-scale=1, user-scalable=yes">
<title>mp4-video-player demo</title>
<script type="module">
import '@webcomponents/webcomponentsjs/webcomponents-loader.js';
// custom-style element invokes the custom properties polyfill
import '@polymer/polymer/lib/elements/custom-style.js';
import '@thuoe/mp4-video-player/mp4-video-player.js'
</script>
</head>
<body>
<h3>Video player using custom CSS properties</h3>
<!-- ensure that custom props are polyfilled on browsers that don't support them -->
<custom-style>
<style is="custom-style">
mp4-video-player {
/* Set the values for the custom CSS properties */
--video-thumb-color: red;
--video-tooltip-background-color: orange;
--video-menu-item-hover-color: magenta;
}
</style>
</custom-style>
<mp4-video-player></mp4-video-player>
</body>
</html>Or you can dynamically change the CSS properties at runtime..
window.addEventListener('WebComponentsReady', () => {
// when the video player element has finished initializing..
const player = document.querySelector('mp4-video-player');
player.updateStyles({
'--video-min-width': '750px',
'--video-min-height': '300px',
'--video-title-color': 'red'
...
});
});This video player has intergrated the following shortcuts to further enhance playback experience:
| Keyboard Shortcut | Intended Action |
|---|---|
space or p |
Toggle play |
m |
Toggle mute |
f |
Toggle fullscreen |
→ |
Skip ahead |
← |
Skip behind |
↑ |
Volume up |
↓ |
Volume down |
The player has a suite of events created using the CustomEvent API at your disposal to listen out for:
| Event | Description | event.detail properties |
|---|---|---|
play |
When the video begins to play | currentTime |
pause |
When the video has been paused | currentTime |
ended |
When the video has ended | currentTime |
exitFullscreen |
When exiting fullscreen mode | currentTime |
enterFullscreen |
When entering fullscreen mode | currentTime |
timeUpdated |
When the current time has updated to a new position | currentTime |
volumeChange |
When the volume has been changed | volume |
Code Example:
const videoPlayer = document.querySelector('mp4-video-player');
videoPlayer.addEventListener('timeUpdated', (event) => {
console.log('Time Updated!', event.detail.currentTime);
});
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