Ginger Wong
5 years ago
9 changed files with 392 additions and 115 deletions
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@@ -0,0 +1,211 @@
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import { h, Component, createRef } from 'https://unpkg.com/preact?module'; |
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import htm from 'https://unpkg.com/htm?module'; |
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const html = htm.bind(h); |
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import { EmojiButton } from 'https://cdn.skypack.dev/@joeattardi/emoji-button'; |
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import { URL_CUSTOM_EMOJIS } from '../utils.js'; |
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import { generatePlaceholderText } from '../utils/chat.js'; |
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export default class ChatInput extends Component { |
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constructor(props, context) { |
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super(props, context); |
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this.formMessageInput = createRef(); |
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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.emojiPicker = null; |
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this.prepNewLine = false; |
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this.handleEmojiButtonClick = this.handleEmojiButtonClick.bind(this); |
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this.handleEmojiSelected = this.handleEmojiSelected.bind(this); |
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this.getCustomEmojis = this.getCustomEmojis.bind(this); |
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this.handleMessageInputKeydown = this.handleMessageInputKeydown.bind(this); |
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this.handleMessageInputKeyup = this.handleMessageInputKeyup.bind(this); |
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this.handleMessageInputBlur = this.handleMessageInputBlur.bind(this); |
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this.handleMessageInput = this.handleMessageInput.bind(this); |
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} |
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componentDidMount() { |
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this.getCustomEmojis(); |
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} |
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getCustomEmojis() { |
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fetch(URL_CUSTOM_EMOJIS) |
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.then(response => { |
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if (!response.ok) { |
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throw new Error(`Network response was not ok ${response.ok}`); |
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} |
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return response.json(); |
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}) |
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.then(json => { |
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this.emojiPicker = new EmojiButton({ |
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zIndex: 100, |
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theme: 'dark', |
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custom: json, |
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initialCategory: 'custom', |
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showPreview: false, |
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position: { |
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top: '50%', |
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right: '100' |
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}, |
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}); |
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this.emojiPicker.on('emoji', emoji => { |
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this.handleEmojiSelected(emoji); |
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}); |
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}) |
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.catch(error => { |
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// this.handleNetworkingError(`Emoji Fetch: ${error}`);
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}); |
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} |
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handleEmojiButtonClick() { |
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if (this.emojiPicker) { |
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this.emojiPicker.togglePicker(this.emojiPicker); |
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} |
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} |
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handleEmojiSelected(emoji) { |
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if (emoji.url) { |
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const url = location.protocol + "//" + location.host + "/" + emoji.url; |
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const name = url.split('\\').pop().split('/').pop(); |
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document.querySelector('#message-body-form').innerHTML += "<img class=\"emoji\" alt=\"" + name + "\" src=\"" + url + "\"/>"; |
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} else { |
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document.querySelector('#message-body-form').innerHTML += emoji.emoji; |
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} |
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} |
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// autocomplete user names
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autoCompleteNames() { |
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const { chatUserNames } = this.props; |
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const rawValue = this.formMessageInput.innerHTML; |
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const position = getCaretPosition(this.formMessageInput); |
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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 = 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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// TODO: Fix the space not working. I'm guessing because the DOM ignores spaces and it requires a nbsp or something?
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this.formMessageInput.innerHTML = rawValue.substring(0, at + 1) + this.suggestion + ' ' + rawValue.substring(position); |
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setCaretPosition(this.formMessageInput, at + this.suggestion.length + 2); |
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} |
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return true; |
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} |
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handleMessageInputKeydown(event) { |
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console.log("========this.formMessageInput", this.formMessageInput) |
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const okCodes = [37,38,39,40,16,91,18,46,8]; |
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const value = this.formMessageInput.innerHTML.trim(); |
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const 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.autoCompleteNames()) { |
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event.preventDefault(); |
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// value could have been changed, update variables
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value = this.formMessageInput.innerHTML.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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handleMessageInput(event) { |
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// event.target.value
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} |
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// setChatPlaceholderText() {
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// // NOTE: This is a fake placeholder that is being styled via CSS.
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// // You can't just set the .placeholder property because it's not a form element.
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// const hasSentFirstChatMessage = getLocalStorage(KEY_CHAT_FIRST_MESSAGE_SENT);
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// const placeholderText = hasSentFirstChatMessage ? CHAT_PLACEHOLDER_TEXT : CHAT_INITIAL_PLACEHOLDER_TEXT;
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// this.formMessageInput.setAttribute("placeholder", placeholderText);
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// }
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render(props, state) { |
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const { contenteditable, hasSentFirstChatMessage } = props; |
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const emojiButtonStyle = { |
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display: this.emojiPicker ? 'block' : 'none', |
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}; |
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const placeholderText = generatePlaceholderText(contenteditable, hasSentFirstChatMessage); |
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return ( |
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html` |
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<div> |
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<div |
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class="appearance-none block w-full bg-gray-200 text-gray-700 border border-black-500 rounded py-2 px-2 my-2 focus:bg-white" |
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onkeydown=${this.handleMessageInputKeydown} |
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onkeyup=${this.handleMessageInputKeyup} |
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onblur=${this.handleMessageInputBlur} |
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oninput=${this.handleMessageInput} |
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contenteditable=${contenteditable} |
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placeholder=${placeholderText} |
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ref=${this.formMessageInput} |
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></div> |
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<button |
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type="button" |
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style=${emojiButtonStyle} |
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onclick=${this.handleEmojiButtonClick} |
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>😏</button> |
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</div> |
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`);
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} |
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} |
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