owncast/webroot/js/app.js
2021-03-31 22:28:39 -07:00

663 lines
19 KiB
JavaScript

import { h, Component } from '/js/web_modules/preact.js';
import htm from '/js/web_modules/htm.js';
const html = htm.bind(h);
import { OwncastPlayer } from './components/player.js';
import SocialIconsList from './components/platform-logos-list.js';
import UsernameForm from './components/chat/username.js';
import VideoPoster from './components/video-poster.js';
import Chat from './components/chat/chat.js';
import Websocket from './utils/websocket.js';
import {
parseSecondsToDurationString,
hasTouchScreen,
getOrientation,
} from './utils/helpers.js';
import ExternalActionModal, {
ExternalActionButton,
} from './components/external-action-modal.js';
import {
addNewlines,
classNames,
clearLocalStorage,
debounce,
generateUsername,
getLocalStorage,
pluralize,
setLocalStorage,
} from './utils/helpers.js';
import {
HEIGHT_SHORT_WIDE,
KEY_CHAT_DISPLAYED,
KEY_USERNAME,
MESSAGE_OFFLINE,
MESSAGE_ONLINE,
ORIENTATION_PORTRAIT,
OWNCAST_LOGO_LOCAL,
TEMP_IMAGE,
TIMER_DISABLE_CHAT_AFTER_OFFLINE,
TIMER_STATUS_UPDATE,
TIMER_STREAM_DURATION_COUNTER,
URL_CONFIG,
URL_OWNCAST,
URL_STATUS,
WIDTH_SINGLE_COL,
} from './utils/constants.js';
export default class App extends Component {
constructor(props, context) {
super(props, context);
const chatStorage = getLocalStorage(KEY_CHAT_DISPLAYED);
this.hasTouchScreen = hasTouchScreen();
this.windowBlurred = false;
this.state = {
websocket: new Websocket(),
displayChat: chatStorage === null ? true : chatStorage,
chatInputEnabled: false, // chat input box state
chatDisabled: false,
username: getLocalStorage(KEY_USERNAME) || generateUsername(),
touchKeyboardActive: false,
configData: {},
extraPageContent: '',
playerActive: false, // player object is active
streamOnline: false, // stream is active/online
isPlaying: false, // player is actively playing video
// status
streamStatusMessage: MESSAGE_OFFLINE,
viewerCount: '',
// dom
windowWidth: window.innerWidth,
windowHeight: window.innerHeight,
orientation: getOrientation(this.hasTouchScreen),
externalAction: null,
};
// timers
this.playerRestartTimer = null;
this.offlineTimer = null;
this.statusTimer = null;
this.disableChatTimer = null;
this.streamDurationTimer = null;
// misc dom events
this.handleChatPanelToggle = this.handleChatPanelToggle.bind(this);
this.handleUsernameChange = this.handleUsernameChange.bind(this);
this.handleFormFocus = this.handleFormFocus.bind(this);
this.handleFormBlur = this.handleFormBlur.bind(this);
this.handleWindowBlur = this.handleWindowBlur.bind(this);
this.handleWindowFocus = this.handleWindowFocus.bind(this);
this.handleWindowResize = debounce(this.handleWindowResize.bind(this), 250);
this.handleOfflineMode = this.handleOfflineMode.bind(this);
this.handleOnlineMode = this.handleOnlineMode.bind(this);
this.disableChatInput = this.disableChatInput.bind(this);
this.setCurrentStreamDuration = this.setCurrentStreamDuration.bind(this);
this.handleKeyDown = this.handleKeyDown.bind(this);
this.handleKeyPressed = this.handleKeyPressed.bind(this);
this.displayExternalAction = this.displayExternalAction.bind(this);
this.closeExternalActionModal = this.closeExternalActionModal.bind(this);
// player events
this.handlePlayerReady = this.handlePlayerReady.bind(this);
this.handlePlayerPlaying = this.handlePlayerPlaying.bind(this);
this.handlePlayerEnded = this.handlePlayerEnded.bind(this);
this.handlePlayerError = this.handlePlayerError.bind(this);
// fetch events
this.getConfig = this.getConfig.bind(this);
this.getStreamStatus = this.getStreamStatus.bind(this);
}
componentDidMount() {
this.getConfig();
if (!this.hasTouchScreen) {
window.addEventListener('resize', this.handleWindowResize);
}
window.addEventListener('blur', this.handleWindowBlur);
window.addEventListener('focus', this.handleWindowFocus);
if (this.hasTouchScreen) {
window.addEventListener('orientationchange', this.handleWindowResize);
}
window.addEventListener('keydown', this.handleKeyDown);
window.addEventListener('keypress', this.handleKeyPressed);
this.player = new OwncastPlayer();
this.player.setupPlayerCallbacks({
onReady: this.handlePlayerReady,
onPlaying: this.handlePlayerPlaying,
onEnded: this.handlePlayerEnded,
onError: this.handlePlayerError,
});
this.player.init();
}
componentWillUnmount() {
// clear all the timers
clearInterval(this.playerRestartTimer);
clearInterval(this.offlineTimer);
clearInterval(this.statusTimer);
clearTimeout(this.disableChatTimer);
clearInterval(this.streamDurationTimer);
window.removeEventListener('resize', this.handleWindowResize);
window.removeEventListener('blur', this.handleWindowBlur);
window.removeEventListener('focus', this.handleWindowFocus);
window.removeEventListener('keydown', this.handleKeyDown);
window.removeEventListener('keypress', this.handleKeyPressed);
if (this.hasTouchScreen) {
window.removeEventListener('orientationchange', this.handleWindowResize);
}
}
// fetch /config data
getConfig() {
fetch(URL_CONFIG)
.then((response) => {
if (!response.ok) {
throw new Error(`Network response was not ok ${response.ok}`);
}
return response.json();
})
.then((json) => {
this.setConfigData(json);
})
.catch((error) => {
this.handleNetworkingError(`Fetch config: ${error}`);
});
}
// fetch stream status
getStreamStatus() {
fetch(URL_STATUS)
.then((response) => {
if (!response.ok) {
throw new Error(`Network response was not ok ${response.ok}`);
}
return response.json();
})
.then((json) => {
this.updateStreamStatus(json);
})
.catch((error) => {
this.handleOfflineMode();
this.handleNetworkingError(`Stream status: ${error}`);
});
}
setConfigData(data = {}) {
const { name, summary } = data;
window.document.title = name;
this.setState({
configData: {
...data,
summary: summary && addNewlines(summary),
},
});
}
// handle UI things from stream status result
updateStreamStatus(status = {}) {
const { streamOnline: curStreamOnline } = this.state;
if (!status) {
return;
}
const { viewerCount, online, lastConnectTime, streamTitle } = status;
this.lastDisconnectTime = status.lastDisconnectTime;
if (status.online && !curStreamOnline) {
// stream has just come online.
this.handleOnlineMode();
} else if (!status.online && curStreamOnline) {
// stream has just flipped offline.
this.handleOfflineMode();
}
this.setState({
viewerCount,
lastConnectTime,
streamOnline: online,
streamTitle,
});
}
// when videojs player is ready, start polling for stream
handlePlayerReady() {
this.getStreamStatus();
this.statusTimer = setInterval(this.getStreamStatus, TIMER_STATUS_UPDATE);
}
handlePlayerPlaying() {
this.setState({
isPlaying: true,
});
}
// likely called some time after stream status has gone offline.
// basically hide video and show underlying "poster"
handlePlayerEnded() {
this.setState({
playerActive: false,
isPlaying: false,
});
}
handlePlayerError() {
// do something?
this.handleOfflineMode();
this.handlePlayerEnded();
}
// stop status timer and disable chat after some time.
handleOfflineMode() {
clearInterval(this.streamDurationTimer);
const remainingChatTime =
TIMER_DISABLE_CHAT_AFTER_OFFLINE -
(Date.now() - new Date(this.lastDisconnectTime));
const countdown = remainingChatTime < 0 ? 0 : remainingChatTime;
this.disableChatTimer = setTimeout(this.disableChatInput, countdown);
this.setState({
streamOnline: false,
streamStatusMessage: MESSAGE_OFFLINE,
});
if (this.player.vjsPlayer && this.player.vjsPlayer.paused()) {
this.handlePlayerEnded();
}
if (this.windowBlurred) {
document.title = ` 🔴 ${
this.state.configData && this.state.configData.name
}`;
}
}
// play video!
handleOnlineMode() {
this.player.startPlayer();
clearTimeout(this.disableChatTimer);
this.disableChatTimer = null;
this.streamDurationTimer = setInterval(
this.setCurrentStreamDuration,
TIMER_STREAM_DURATION_COUNTER
);
this.setState({
playerActive: true,
streamOnline: true,
chatInputEnabled: true,
streamTitle: '',
streamStatusMessage: MESSAGE_ONLINE,
});
if (this.windowBlurred) {
document.title = ` 🟢 ${
this.state.configData && this.state.configData.name
}`;
}
}
setCurrentStreamDuration() {
let streamDurationString = '';
if (this.state.lastConnectTime) {
const diff = (Date.now() - Date.parse(this.state.lastConnectTime)) / 1000;
streamDurationString = parseSecondsToDurationString(diff);
}
this.setState({
streamStatusMessage: `${MESSAGE_ONLINE} ${streamDurationString}`,
});
}
handleUsernameChange(newName) {
this.setState({
username: newName,
});
}
handleFormFocus() {
if (this.hasTouchScreen) {
this.setState({
touchKeyboardActive: true,
});
}
}
handleFormBlur() {
if (this.hasTouchScreen) {
this.setState({
touchKeyboardActive: false,
});
}
}
handleChatPanelToggle() {
const { displayChat: curDisplayed } = this.state;
const displayChat = !curDisplayed;
if (displayChat) {
setLocalStorage(KEY_CHAT_DISPLAYED, displayChat);
} else {
clearLocalStorage(KEY_CHAT_DISPLAYED);
}
this.setState({
displayChat,
});
}
disableChatInput() {
this.setState({
chatInputEnabled: false,
});
}
handleNetworkingError(error) {
console.log(`>>> App Error: ${error}`);
}
handleWindowResize() {
this.setState({
windowWidth: window.innerWidth,
windowHeight: window.innerHeight,
orientation: getOrientation(this.hasTouchScreen),
});
}
handleWindowBlur() {
this.windowBlurred = true;
}
handleWindowFocus() {
this.windowBlurred = false;
window.document.title = this.state.configData && this.state.configData.name;
}
handleSpaceBarPressed(e) {
e.preventDefault();
if (this.state.isPlaying) {
this.setState({
isPlaying: false,
});
this.player.vjsPlayer.pause();
} else {
this.setState({
isPlaying: true,
});
this.player.vjsPlayer.play();
}
}
handleKeyDown(e) {
if (e.code === 'Escape' && this.state.externalAction !== null) {
this.closeExternalActionModal();
}
}
handleKeyPressed(e) {
if (
e.code === 'Space' &&
e.target === document.body &&
this.state.streamOnline
) {
this.handleSpaceBarPressed(e);
}
}
displayExternalAction(index) {
const { configData, username } = this.state;
const action = configData.externalActions[index];
if (!action) {
return;
}
const { url: actionUrl, openExternally } = action || {};
let url = new URL(actionUrl);
// Append url and username to params so the link knows where we came from and who we are.
url.searchParams.append('username', username);
url.searchParams.append('instance', window.location);
if (openExternally) {
var win = window.open(url.toString(), '_blank');
win.focus();
return;
}
this.setState({
externalAction: action,
});
}
closeExternalActionModal() {
this.setState({
externalAction: null,
});
}
render(props, state) {
const {
chatInputEnabled,
configData,
displayChat,
isPlaying,
orientation,
playerActive,
streamOnline,
streamStatusMessage,
streamTitle,
touchKeyboardActive,
username,
viewerCount,
websocket,
windowHeight,
windowWidth,
externalAction,
} = state;
const {
version: appVersion,
logo = TEMP_IMAGE,
socialHandles = [],
summary,
tags = [],
name,
extraPageContent,
chatDisabled,
externalActions,
} = configData;
const bgUserLogo = { backgroundImage: `url(${logo})` };
const tagList = tags !== null && tags.length > 0 && tags.join(' #');
const viewerCountMessage =
streamOnline && viewerCount > 0
? html`${viewerCount} ${pluralize('viewer', viewerCount)}`
: null;
const mainClass = playerActive ? 'online' : '';
const isPortrait =
this.hasTouchScreen && orientation === ORIENTATION_PORTRAIT;
const shortHeight = windowHeight <= HEIGHT_SHORT_WIDE && !isPortrait;
const singleColMode = windowWidth <= WIDTH_SINGLE_COL && !shortHeight;
const shouldDisplayChat = displayChat && !chatDisabled;
const usernameStyle = chatDisabled ? 'none' : 'flex';
const extraAppClasses = classNames({
chat: shouldDisplayChat,
'no-chat': !shouldDisplayChat,
'single-col': singleColMode,
'bg-gray-800': singleColMode && shouldDisplayChat,
'short-wide': shortHeight && windowWidth > WIDTH_SINGLE_COL,
'touch-screen': this.hasTouchScreen,
'touch-keyboard-active': touchKeyboardActive,
});
const poster = isPlaying
? null
: html` <${VideoPoster} offlineImage=${logo} active=${streamOnline} /> `;
const externalActionButtons =
externalActions &&
html`<div
id="external-actions-container"
class="flex flex-row align-center"
>
${externalActions.map(
function (action, index) {
return html`<${ExternalActionButton}
onClick=${this.displayExternalAction}
action=${action}
index=${index}
/>`;
}.bind(this)
)}
</div>`;
const externalActionModal = externalAction
? html`<${ExternalActionModal}
title=${this.state.externalAction.description ||
this.state.externalAction.title}
url=${this.state.externalAction.url}
onClose=${this.closeExternalActionModal}
/>`
: null;
return html`
<div
id="app-container"
class="flex w-full flex-col justify-start relative ${extraAppClasses}"
>
<div id="top-content" class="z-50">
<header
class="flex border-b border-gray-900 border-solid shadow-md fixed z-10 w-full top-0 left-0 flex flex-row justify-between flex-no-wrap"
>
<h1
class="flex flex-row items-center justify-start p-2 uppercase text-gray-400 text-xl font-thin tracking-wider overflow-hidden whitespace-no-wrap"
>
<span
id="logo-container"
class="inline-block rounded-full bg-white w-8 min-w-8 min-h-8 h-8 mr-2 bg-no-repeat bg-center"
>
<img
class="logo visually-hidden"
src=${OWNCAST_LOGO_LOCAL}
alt="owncast logo"
/>
</span>
<span class="instance-title overflow-hidden truncate"
>${streamOnline && streamTitle ? streamTitle : name}</span
>
</h1>
<div
id="user-options-container"
class="flex flex-row justify-end items-center flex-no-wrap"
style=${{ display: usernameStyle }}
>
<${UsernameForm}
username=${username}
onUsernameChange=${this.handleUsernameChange}
onFocus=${this.handleFormFocus}
onBlur=${this.handleFormBlur}
/>
<button
type="button"
id="chat-toggle"
onClick=${this.handleChatPanelToggle}
class="flex cursor-pointer text-center justify-center items-center min-w-12 h-full bg-gray-800 hover:bg-gray-700"
>
💬
</button>
</div>
</header>
</div>
<main class=${mainClass}>
<div
id="video-container"
class="flex owncast-video-container bg-black w-full bg-center bg-no-repeat flex flex-col items-center justify-start"
>
<video
class="video-js vjs-big-play-centered display-block w-full h-full"
id="video"
preload="auto"
controls
playsinline
></video>
${poster}
</div>
<section
id="stream-info"
aria-label="Stream status"
class="flex text-center flex-row justify-between font-mono py-2 px-8 bg-gray-900 text-indigo-200 shadow-md border-b border-gray-100 border-solid"
>
<span>${streamStatusMessage}</span>
<span id="stream-viewer-count">${viewerCountMessage}</span>
</section>
</main>
<section id="user-content" aria-label="User information" class="p-8">
<div class="user-content flex flex-row p-8">
<div
class="user-image rounded-full bg-white p-4 mr-8 bg-no-repeat bg-center"
style=${bgUserLogo}
>
<img class="logo visually-hidden" alt="" src=${logo} />
</div>
<div
class="user-content-header border-b border-gray-500 border-solid"
>
<h2 class="font-semibold text-5xl">
<span class="streamer-name text-indigo-600">${name}</span>
</h2>
<div>${externalActionButtons}</div>
<h3 class="font-semibold text-3xl">
${streamOnline && streamTitle}
</h3>
<${SocialIconsList} handles=${socialHandles} />
<div
id="stream-summary"
class="stream-summary my-4"
dangerouslySetInnerHTML=${{ __html: summary }}
></div>
<div id="tag-list" class="tag-list text-gray-600 mb-3">
${tagList && `#${tagList}`}
</div>
</div>
</div>
<div
id="extra-user-content"
class="extra-user-content px-8"
dangerouslySetInnerHTML=${{ __html: extraPageContent }}
></div>
</section>
<footer class="flex flex-row justify-start p-8 opacity-50 text-xs">
<span class="mx-1 inline-block">
<a href="${URL_OWNCAST}" rel="noopener noreferrer" target="_blank"
>About Owncast</a
>
</span>
<span class="mx-1 inline-block">Version ${appVersion}</span>
</footer>
<${Chat}
websocket=${websocket}
username=${username}
chatInputEnabled=${chatInputEnabled && !chatDisabled}
instanceTitle=${name}
/>
${externalActionModal}
</div>
`;
}
}