369 lines
10 KiB
JavaScript
369 lines
10 KiB
JavaScript
import SOCKET_MESSAGE_TYPES from './chat/socketMessageTypes.js';
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const KEY_USERNAME = 'owncast_username';
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const KEY_AVATAR = 'owncast_avatar';
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const KEY_CHAT_DISPLAYED = 'owncast_chat';
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const KEY_CHAT_FIRST_MESSAGE_SENT = 'owncast_first_message_sent';
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const CHAT_INITIAL_PLACEHOLDER_TEXT = 'Type here to chat, no account necessary.';
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const CHAT_PLACEHOLDER_TEXT = 'Message';
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const CHAT_PLACEHOLDER_OFFLINE = 'Chat is offline.';
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class Message {
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constructor(model) {
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this.author = model.author;
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this.body = model.body;
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this.image = model.image || generateAvatar(model.author);
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this.id = model.id;
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this.type = model.type;
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}
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formatText() {
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showdown.setFlavor('github');
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var markdownToHTML = new showdown.Converter({
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emoji: true,
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openLinksInNewWindow: true,
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tables: false,
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simplifiedAutoLink: false,
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literalMidWordUnderscores: true,
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strikethrough: true,
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ghMentions: false,
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}).makeHtml(this.body);
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const linked = autoLink(markdownToHTML, {
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embed: true,
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removeHTTP: true,
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linkAttr: {
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target: '_blank'
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}
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});
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return addNewlines(linked);
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}
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userColor() {
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return messageBubbleColorForString(this.author);
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}
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}
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class MessagingInterface {
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constructor() {
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this.chatDisplayed = false;
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this.username = '';
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this.messageCharCount = 0;
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this.maxMessageLength = 500;
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this.maxMessageBuffer = 20;
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this.chatUsernames = [];
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this.onReceivedMessages = this.onReceivedMessages.bind(this);
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this.disableChat = this.disableChat.bind(this);
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this.enableChat = this.enableChat.bind(this);
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}
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init() {
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this.tagAppContainer = document.getElementById('app-container');
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this.tagChatToggle = document.getElementById('chat-toggle');
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this.tagUserInfoChanger = document.getElementById('user-info-change');
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this.tagUsernameDisplay = document.getElementById('username-display');
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this.tagMessageFormWarning = document.getElementById('message-form-warning');
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this.inputMessageAuthor = document.getElementById('self-message-author');
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this.inputChangeUserName = document.getElementById('username-change-input');
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this.btnUpdateUserName = document.getElementById('button-update-username');
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this.btnCancelUpdateUsername = document.getElementById('button-cancel-change');
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this.btnSubmitMessage = document.getElementById('button-submit-message');
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this.formMessageInput = document.getElementById('message-body-form');
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this.imgUsernameAvatar = document.getElementById('username-avatar');
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this.textUserInfoDisplay = document.getElementById('user-info-display');
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this.scrollableMessagesContainer = document.getElementById('messages-container');
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// add events
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this.tagChatToggle.addEventListener('click', this.handleChatToggle.bind(this));
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this.textUserInfoDisplay.addEventListener('click', this.handleShowChangeNameForm.bind(this));
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this.btnUpdateUserName.addEventListener('click', this.handleUpdateUsername.bind(this));
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this.btnCancelUpdateUsername.addEventListener('click', this.handleHideChangeNameForm.bind(this));
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this.inputChangeUserName.addEventListener('keydown', this.handleUsernameKeydown.bind(this));
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this.formMessageInput.addEventListener('keydown', this.handleMessageInputKeydown.bind(this));
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this.formMessageInput.addEventListener('keyup', this.handleMessageInputKeyup.bind(this));
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this.formMessageInput.addEventListener('blur', this.handleMessageInputBlur.bind(this));
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this.btnSubmitMessage.addEventListener('click', this.handleSubmitChatButton.bind(this));
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this.initLocalStates();
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if (hasTouchScreen()) {
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setVHvar();
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window.addEventListener("orientationchange", setVHvar);
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this.tagAppContainer.classList.add('touch-screen');
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}
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}
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initLocalStates() {
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this.username = getLocalStorage(KEY_USERNAME) || generateUsername();
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this.imgUsernameAvatar.src =
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getLocalStorage(KEY_AVATAR) || generateAvatar(`${this.username}${Date.now()}`);
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this.updateUsernameFields(this.username);
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this.chatDisplayed = getLocalStorage(KEY_CHAT_DISPLAYED) || true;
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this.displayChat();
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this.disableChat(); // Disabled by default.
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}
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updateUsernameFields(username) {
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this.tagUsernameDisplay.innerText = username;
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this.inputChangeUserName.value = username;
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this.inputMessageAuthor.value = username;
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}
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displayChat() {
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if (this.chatDisplayed) {
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this.tagAppContainer.classList.add('chat');
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this.tagAppContainer.classList.remove('no-chat');
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jumpToBottom(this.scrollableMessagesContainer);
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} else {
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this.tagAppContainer.classList.add('no-chat');
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this.tagAppContainer.classList.remove('chat');
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}
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this.setChatPlaceholderText();
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}
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handleChatToggle() {
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this.chatDisplayed = !this.chatDisplayed;
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if (this.chatDisplayed) {
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setLocalStorage(KEY_CHAT_DISPLAYED, this.chatDisplayed);
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} else {
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clearLocalStorage(KEY_CHAT_DISPLAYED);
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}
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this.displayChat();
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}
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handleShowChangeNameForm() {
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this.textUserInfoDisplay.style.display = 'none';
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this.tagUserInfoChanger.style.display = 'flex';
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if (document.body.clientWidth < 640) {
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this.tagChatToggle.style.display = 'none';
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}
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}
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handleHideChangeNameForm() {
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this.textUserInfoDisplay.style.display = 'flex';
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this.tagUserInfoChanger.style.display = 'none';
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if (document.body.clientWidth < 640) {
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this.tagChatToggle.style.display = 'inline-block';
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}
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}
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handleUpdateUsername() {
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const oldName = this.username;
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var newValue = this.inputChangeUserName.value;
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newValue = newValue.trim();
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// do other string cleanup?
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if (newValue) {
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this.username = newValue;
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this.updateUsernameFields(newValue);
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this.imgUsernameAvatar.src = generateAvatar(`${newValue}${Date.now()}`);
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setLocalStorage(KEY_USERNAME, newValue);
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setLocalStorage(KEY_AVATAR, this.imgUsernameAvatar.src);
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}
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this.handleHideChangeNameForm();
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if (oldName !== newValue) {
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this.sendUsernameChange(oldName, newValue, this.imgUsernameAvatar.src);
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}
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}
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handleUsernameKeydown(event) {
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if (event.keyCode === 13) { // enter
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this.handleUpdateUsername();
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} else if (event.keyCode === 27) { // esc
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this.handleHideChangeNameForm();
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}
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}
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sendUsernameChange(oldName, newName, image) {
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const nameChange = {
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type: SOCKET_MESSAGE_TYPES.NAME_CHANGE,
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oldName: oldName,
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newName: newName,
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image: image,
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};
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this.send(nameChange);
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}
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tryToComplete() {
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const rawValue = this.formMessageInput.value;
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const position = this.formMessageInput.selectionStart;
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const at = rawValue.lastIndexOf('@', position - 1);
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if (at === -1) {
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return false;
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}
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var partial = rawValue.substring(at + 1, position).trim();
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if (partial === this.suggestion) {
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partial = this.partial;
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} else {
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this.partial = partial;
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}
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const possibilities = this.chatUsernames.filter(function (username) {
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return username.toLowerCase().startsWith(partial.toLowerCase());
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});
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if (this.completionIndex === undefined || ++this.completionIndex >= possibilities.length) {
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this.completionIndex = 0;
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}
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if (possibilities.length > 0) {
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this.suggestion = possibilities[this.completionIndex];
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this.formMessageInput.value = rawValue.substring(0, at + 1) + this.suggestion + ' ' + rawValue.substring(position);
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this.formMessageInput.selectionStart = at + this.suggestion.length + 2;
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this.formMessageInput.selectionEnd = this.formMessageInput.selectionStart;
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}
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return true;
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}
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handleMessageInputKeydown(event) {
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var okCodes = [37,38,39,40,16,91,18,46,8];
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var value = this.formMessageInput.value.trim();
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var numCharsLeft = this.maxMessageLength - value.length;
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if (event.keyCode === 13) { // enter
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if (!this.prepNewLine) {
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this.submitChat(value);
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event.preventDefault();
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this.prepNewLine = false;
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return;
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}
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}
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if (event.keyCode === 16 || event.keyCode === 17) { // ctrl, shift
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this.prepNewLine = true;
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}
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if (event.keyCode === 9) { // tab
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if (this.tryToComplete()) {
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event.preventDefault();
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// value could have been changed, update variables
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value = this.formMessageInput.value.trim();
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numCharsLeft = this.maxMessageLength - value.length;
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}
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}
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if (numCharsLeft <= this.maxMessageBuffer) {
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this.tagMessageFormWarning.innerText = `${numCharsLeft} chars left`;
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if (numCharsLeft <= 0 && !okCodes.includes(event.keyCode)) {
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event.preventDefault();
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return;
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}
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} else {
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this.tagMessageFormWarning.innerText = '';
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}
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}
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handleMessageInputKeyup(event) {
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if (event.keyCode === 16 || event.keyCode === 17) { // ctrl, shift
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this.prepNewLine = false;
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}
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}
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handleMessageInputBlur(event) {
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this.prepNewLine = false;
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}
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handleSubmitChatButton(event) {
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var value = this.formMessageInput.value.trim();
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if (value) {
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this.submitChat(value);
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event.preventDefault();
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return false;
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}
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event.preventDefault();
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return false;
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}
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submitChat(content) {
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if (!content) {
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return;
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}
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var message = new Message({
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body: content,
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author: this.username,
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image: this.imgUsernameAvatar.src,
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type: SOCKET_MESSAGE_TYPES.CHAT,
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});
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this.send(message);
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// clear out things.
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this.formMessageInput.value = '';
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this.tagMessageFormWarning.innerText = '';
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const hasSentFirstChatMessage = getLocalStorage(KEY_CHAT_FIRST_MESSAGE_SENT);
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if (!hasSentFirstChatMessage) {
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setLocalStorage(KEY_CHAT_FIRST_MESSAGE_SENT, true);
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this.setChatPlaceholderText();
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}
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}
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disableChat() {
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if (this.formMessageInput) {
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this.formMessageInput.disabled = true;
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this.formMessageInput.placeholder = CHAT_PLACEHOLDER_OFFLINE;
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}
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}
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enableChat() {
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if (this.formMessageInput) {
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this.formMessageInput.disabled = false;
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this.setChatPlaceholderText();
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}
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}
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setChatPlaceholderText() {
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const hasSentFirstChatMessage = getLocalStorage(KEY_CHAT_FIRST_MESSAGE_SENT);
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this.formMessageInput.placeholder = hasSentFirstChatMessage ? CHAT_PLACEHOLDER_TEXT : CHAT_INITIAL_PLACEHOLDER_TEXT
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}
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// handle Vue.js message display
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onReceivedMessages(newMessages, oldMessages) {
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// update the list of chat usernames
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newMessages.slice(oldMessages.length).forEach(function (message) {
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var username;
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switch (message.type) {
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case SOCKET_MESSAGE_TYPES.CHAT:
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username = message.author;
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break;
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case SOCKET_MESSAGE_TYPES.NAME_CHANGE:
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username = message.newName;
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break;
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default:
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return;
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}
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if (!this.chatUsernames.includes(username)) {
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this.chatUsernames.push(username);
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}
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}, this);
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if (newMessages.length !== oldMessages.length) {
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// jump to bottom
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jumpToBottom(this.scrollableMessagesContainer);
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}
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}
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send(messageJSON) {
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console.error('MessagingInterface send() is not linked to the websocket component.');
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}
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}
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export { Message, MessagingInterface } |