Chat: show dates when the day changes (js)
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コミット
d7b4717cf5
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@ -189,6 +189,7 @@ const create_chat_message = (object) => {
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chat_message.classList.add("chat-message");
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chat_message.dataset.seq = object.seq;
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chat_message.dataset.tokenHash = object.token_hash;
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chat_message.dataset.date = object.date;
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const chat_message_time = document.createElement("time");
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chat_message_time.classList.add("chat-message__time");
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@ -256,23 +257,65 @@ const create_chat_user_components = (user) => {
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result.push(...[chat_user_name, chat_user_tripcode_nbsp, chat_user_tripcode]);
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return result;
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}
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const zeropad = (n) => ("0" + n).slice(-2);
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const datestamp = () => {
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const date = new Date();
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return `${date.getUTCFullYear()}-${zeropad(date.getUTCMonth() + 1)}-${zeropad(date.getUTCDate())}`;
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}
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const create_and_add_chat_message = (object) => {
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// date
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last_chat_message = chat_messages.querySelector(".chat-message:last-of-type");
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if (last_chat_message === null || last_chat_message.dataset.date !== object.date) {
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const chat_date = document.createElement("li");
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chat_date.classList.add("chat-date");
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chat_date.dataset.date = object.date;
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const chat_date_hr = document.createElement("hr");
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const chat_date_div = document.createElement("div");
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const chat_date_div_time = document.createElement("time");
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chat_date_div_time.datetime = object.date;
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chat_date_div_time.innerText = object.date;
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chat_date_div.insertAdjacentElement("beforeend", chat_date_div_time);
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chat_date.insertAdjacentElement("beforeend", chat_date_hr);
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chat_date.insertAdjacentElement("beforeend", chat_date_div);
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if (last_chat_message === null && object.date === datestamp())
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chat_date.dataset.hidden = "";
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chat_messages.insertAdjacentElement("beforeend", chat_date);
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}
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// message
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const chat_message = create_chat_message(object);
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chat_messages.insertAdjacentElement("beforeend", chat_message);
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while (chat_messages.children.length > max_chat_scrollback) {
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chat_messages.children[0].remove();
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const first_chat_message = chat_messages.querySelector(".chat-message");
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if (first_chat_message !== null) {
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const first_chat_date = chat_messages.querySelector(".chat-date");
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if (first_chat_date !== null && first_chat_date.hasAttribute("data-hidden") && (object.date !== first_chat_message.dataset.date || object.date !== datestamp()))
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first_chat_date.removeAttribute("data-hidden");
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}
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const string_seqs = new Set();
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for (const this_chat_message of chat_messages.querySelectorAll(".chat-message")) {
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if (chat_messages.querySelectorAll(".chat-message").length - string_seqs.size > max_chat_scrollback)
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string_seqs.add(this_chat_message.dataset.seq);
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else
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break;
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}
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delete_chat_messages({string_seqs});
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}
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const delete_chat_messages = (seqs) => {
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string_seqs = new Set(seqs.map(n => n.toString()));
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to_delete = [];
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for (const chat_message of chat_messages.children) {
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if (string_seqs.has(chat_message.dataset.seq))
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to_delete.push(chat_message);
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const delete_chat_messages = ({string_seqs, keep=false}) => {
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const keep_dates = new Set();
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for (const chat_message of chat_messages.querySelectorAll(".chat-message")) {
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if (string_seqs.has(chat_message.dataset.seq) === keep)
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keep_dates.add(chat_message.dataset.date);
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}
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for (const chat_message of to_delete) {
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chat_message.remove();
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const to_delete = [];
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for (const child of chat_messages.children) {
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if (child.classList.contains("chat-date") && !keep_dates.has(child.dataset.date) || child.classList.contains("chat-message") && string_seqs.has(child.dataset.seq) !== keep)
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to_delete.push(child);
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}
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for (const element of to_delete)
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element.remove();
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}
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let users = {};
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@ -632,17 +675,8 @@ const on_websocket_message = async (event) => {
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chat_form_submit.disabled = false;
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// remove messages the server isn't acknowledging the existence of
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const seqs = new Set(receipt.messages.map((message) => {return message.seq;}));
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const to_delete = [];
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for (const chat_message of chat_messages.children) {
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const chat_message_seq = parseInt(chat_message.dataset.seq);
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if (!seqs.has(chat_message_seq)) {
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to_delete.push(chat_message);
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}
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}
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for (const chat_message of to_delete) {
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chat_message.remove();
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}
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const string_seqs = new Set(receipt.messages.map(message => message.seq.toString()));
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delete_chat_messages({string_seqs, keep: true});
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// settings
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default_name = receipt.default;
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@ -744,7 +778,7 @@ const on_websocket_message = async (event) => {
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case "delete":
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console.log("ws delete", receipt);
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delete_chat_messages(receipt.seqs);
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delete_chat_messages({string_seqs: new Set(receipt.seqs.map(n => n.toString()))});
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break;
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case "set-users":
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@ -969,6 +1003,14 @@ chat_messages_unlock.addEventListener("click", (event) => {
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chat_messages.scrollTop = chat_messages.scrollTopMax;
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});
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/* show initial chat date if a day has passed */
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const show_initial_date = () => {
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const chat_date = chat_messages.querySelector(".chat-date:first-child");
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if (chat_date !== null && chat_date.hasAttribute("data-hidden") && chat_date.dataset.date !== datestamp())
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chat_date.removeAttribute("data-hidden");
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}
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setInterval(show_initial_date, 30000);
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/* close websocket after prolonged absence of pings */
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const rotate_websocket = () => {
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@ -273,6 +273,29 @@ noscript {
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font-size: 9pt;
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cursor: default;
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}
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.chat-date {
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text-align: center;
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position: relative;
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display: grid;
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align-items: center;
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margin: 8px 0;
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color: #b2b2b3;
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cursor: default;
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}
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.chat-date[data-hidden] {
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display: none;
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}
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.chat-date > hr {
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margin: 0;
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position: absolute;
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width: 100%;
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box-sizing: border-box;
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}
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.chat-date > :not(hr) > time {
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padding: 0 1ch;
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background-color: #232327;
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position: relative;
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}
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#chat__body__users {
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background-color: #121214;
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mask-image: linear-gradient(black calc(100% - 0.625rem), transparent calc(100% - 0.125rem));
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@ -193,7 +193,7 @@
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<ol id="chat-messages">
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{% for message in messages | reverse %}
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{% with this_user = users_by_token[message.token] %}
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<li class="chat-message" data-seq="{{ message.seq }}" data-token-hash="{{ this_user.token_hash }}">
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<li class="chat-message" data-seq="{{ message.seq }}" data-token-hash="{{ this_user.token_hash }}" data-date="{{ message.date }}">
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<time class="chat-message__time" datetime="{{ message.date }}T{{ message.time_seconds }}Z" title="{{ message.date }} {{ message.time_seconds }}">{{ message.time_minutes }}</time>
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{{- ' ' | safe -}}
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{{ appearance(this_user, insignia_class='chat-message__insignia', name_class='chat-message__name', tag_class='chat-message__name__tag') }}
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