gun/examples/iris-chat/script.js
2020-01-10 22:27:10 +02:00

314 lines
9.5 KiB
JavaScript

var gun = Gun([location.origin + '/gun', 'https://gun-us.herokuapp.com/gun']);
var chat = gun.get('converse/' + location.hash.slice(1));
var chats = {};
var activeChat;
var getKey = new Promise(resolve => {
var pair = localStorage.getItem('chatKeyPair');
if (pair) {
resolve(JSON.parse(pair));
} else {
Gun.SEA.pair(pair => {
localStorage.setItem('chatKeyPair', JSON.stringify(pair));
resolve(pair);
});
}
});
var key, myIdenticon;
getKey.then(k => {
key = k;
irisLib.Chat.initUser(gun, key);
myIdenticon = $(new irisLib.Attribute({type:'keyID', value: key.pub}).identicon({width:40, showType: false}));
$(".user-info").append(myIdenticon);
myIdenticon.click(showSettings);
irisLib.Chat.getChats(gun, key, addChat);
irisLib.Chat.setOnline(gun, true);
var chatWith = getUrlParameter('chatWith');
if (chatWith) {
addChat(chatWith);
showChat(chatWith);
window.history.pushState({}, "Iris Chat", "/"+window.location.href.substring(window.location.href.lastIndexOf('/') + 1).split("?")[0]); // remove param
}
gun.user().get('profile').get('name').on(name => {
if (name && typeof name === 'string') {
var el = $('#settings-name');
if (!el.is(':focus')) {
$('#settings-name').val(name);
}
}
});
});
$('#paste-chat-link').on('keyup paste', event => {
var val = $(event.target).val();
if (val.length < 30 || val.indexOf('chatWith') === -1) {
return;
}
var s = val.split('?');
if (s.length !== 2) { return; }
$(event.target).val('');
var pub = getUrlParameter('chatWith', s[1]);
addChat(pub);
showChat(pub);
});
$('.chat-item.new').click(showNewChat);
$('#settings-name').on('keyup paste', event => {
var name = $(event.target).val().trim();
gun.user().get('profile').get('name').put(name);
});
function hideStuff() {
$('.chat-item').toggleClass('active', false);
$('.main-view').hide();
$('#not-seen-by-them').hide();
$(".message-form").hide();
$("#topbar").empty();
}
function showSettings() {
hideStuff();
$('#topbar').text('Settings');
$('#settings').show();
}
function showNewChat() {
hideStuff();
$('.chat-item.new').toggleClass('active', true);
$('#new-chat').show();
$("#topbar").text('Start new chat');
}
showNewChat();
$('.copy-chat-link').click(event => {
copyToClipboard('https://chat.iris.to/?chatWith=' + key.pub);
var t = $(event.target);
var originalText = t.text();
var originalWidth = t.width();
t.width(originalWidth);
t.text('Copied');
setTimeout(() => {
t.text(originalText);
t.css('width', '');
}, 2000);
});
$('#copy-private-key').click(event => {
copyToClipboard(JSON.stringify(key));
var t = $(event.target);
var originalText = t.text();
var originalWidth = t.width();
t.width(originalWidth);
t.text('Copied');
setTimeout(() => {
t.text(originalText);
t.css('width', '');
}, 2000);
});
$('#download-private-key').click(downloadKey);
function showChat(pub) {
if (!pub || !Object.prototype.hasOwnProperty.call(chats, pub)) {
return;
}
activeChat = pub;
hideStuff();
$('.chat-item[data-pub="' + pub +'"]').toggleClass('active', true);
$("#message-list").empty();
$("#message-list").show();
$(".message-form").show();
$(".message-form form").off('submit');
$(".message-form form").on('submit', event => {
event.preventDefault();
var text = $('#new-msg').val();
if (!text.length) { return; }
chats[pub].send(text);
$('#new-msg').val('');
});
var nameEl = $('<span class="name"></span>');
if (chats[pub].name) {
nameEl.text(chats[pub].name);
nameEl.show();
}
$("#topbar").append(chats[pub].identicon.clone());
$("#topbar").append(nameEl);
$("#topbar").append($('<small class="last-seen"></small>'));
var msgs = Object.values(chats[pub].messages);
msgs.forEach(addMessage);
sortMessagesByTime();
lastSeenTimeChanged(pub);
$('#message-list').scrollTop($('#message-list')[0].scrollHeight - $('#message-list')[0].clientHeight);
chats[pub].setMyMsgsLastSeenTime();
function setOnlineStatus() {
var online = chats[pub].online;
if (activeChat === pub) {
if (online.isOnline) {
$('#topbar .last-seen').text('online');
} else if (online.lastActive) {
$('#topbar .last-seen').text('last seen ' + formatDate(new Date(online.lastActive * 1000)));
}
}
}
if (!chats[pub].online) {
chats[pub].online = {};
irisLib.Chat.getOnline(gun, pub, (online) => {
chats[pub].online = online;
setOnlineStatus();
});
}
setOnlineStatus();
}
function sortChatsByLatest() {
var sorted = $(".chat-item").sort((a, b) => $(b).data('latestTime') - $(a).data('latestTime'));
$(".chat-list").append(sorted);
}
function sortMessagesByTime() {
var sorted = $(".msg").sort((a, b) => $(a).data('time') - $(b).data('time'));
$("#message-list").append(sorted);
}
function addMessage(msg) {
var msgEl = $(
'<div class="msg"><div class="text">' +
msg.text + '</div>' +
'<div class="time"><span class="seen">✔</span> ' + formatDate(msg.time) + '</div></div>'
);
msgEl.toggleClass('our', msg.selfAuthored ? true : false);
msgEl.toggleClass('their', msg.selfAuthored ? false : true);
msgEl.data('time', msg.time);
$("#message-list").append(msgEl); // TODO: jquery insertAfter element with smaller timestamp
$('#message-list').scrollTop($('#message-list')[0].scrollHeight - $('#message-list')[0].clientHeight);
}
function addChat(pub) {
if (!pub || Object.prototype.hasOwnProperty.call(chats, pub)) {
return;
}
var el = $('<div class="chat-item"><span class="name"></span> <small class="latest"></small></div>');
el.attr('data-pub', pub);
chats[pub] = new irisLib.Chat({gun, key, participants: pub, onMessage: (msg, info) => {
msg.selfAuthored = info.selfAuthored;
chats[pub].messages[msg.time] = msg;
msg.time = new Date(msg.time);
if (!info.selfAuthored && msg.time > chats[pub].theirLastSeenTime) {
chats[pub].theirLastSeenTime = msg.time;
lastSeenTimeChanged(pub);
}
if (!chats[pub].latest || msg.time > chats[pub].latest.time) {
chats[pub].latest = msg;
var text = msg.text.length > 30 ? msg.text.slice(0,30) + '...' : msg.text;
el.find('.latest').text(text);
el.data('latestTime', msg.time);
sortChatsByLatest();
}
if (activeChat === pub) {
addMessage(msg);
sortMessagesByTime(); // this is slow if message history is loaded while chat active
if (chats[pub].latest.time === msg.time) {
chats[pub].setMyMsgsLastSeenTime();
}
}
}});
chats[pub].messages = chats[pub].messages || [];
chats[pub].identicon = $(new irisLib.Attribute({type: 'keyID', value: pub}).identicon({width:40, showType: false}));
gun.user(pub).get('profile').get('name').on(name => {
if (name && typeof name === 'string') {
chats[pub].name = name;
el.find('.name').text(name);
if (pub === activeChat) {
$('#topbar .name').text(name);
}
}
});
el.prepend(chats[pub].identicon);
el.click(() => showChat(pub));
$(".chat-list").append(el);
chats[pub].getTheirMsgsLastSeenTime(time => {
chats[pub].theirLastSeenTime = new Date(time);
lastSeenTimeChanged(pub);
});
}
function lastSeenTimeChanged(pub) {
if (pub === activeChat) {
if (chats[pub].theirLastSeenTime) {
$('#not-seen-by-them').hide();
$('.msg.our').each(function() {
var el = $(this);
if (el.data('time') <= chats[pub].theirLastSeenTime) {
el.find('.seen').show();
}
});
// set seen msgs
} else {
$('#not-seen-by-them').show();
}
}
}
/* Helpers */
function formatDate(date) {
var s = date.toISOString().split('T');
return s[0] + ' ' + s[1].slice(0,5);
}
function copyToClipboard(text) {
if (window.clipboardData && window.clipboardData.setData) {
// Internet Explorer-specific code path to prevent textarea being shown while dialog is visible.
return clipboardData.setData("Text", text);
}
else if (document.queryCommandSupported && document.queryCommandSupported("copy")) {
var textarea = document.createElement("textarea");
textarea.textContent = text;
textarea.style.position = "fixed"; // Prevent scrolling to bottom of page in Microsoft Edge.
document.body.appendChild(textarea);
textarea.select();
try {
return document.execCommand("copy"); // Security exception may be thrown by some browsers.
}
catch (ex) {
console.warn("Copy to clipboard failed.", ex);
return false;
}
finally {
document.body.removeChild(textarea);
}
}
}
function getUrlParameter(sParam, sParams) {
var sPageURL = sParams || window.location.search.substring(1),
sURLVariables = sPageURL.split('&'),
sParameterName,
i;
for (i = 0; i < sURLVariables.length; i++) {
sParameterName = sURLVariables[i].split('=');
if (sParameterName[0] === sParam) {
return sParameterName[1] === undefined ? true : decodeURIComponent(sParameterName[1]);
}
}
};
function download(filename, data, type, charset, href) {
var hiddenElement;
if (charset == null) {
charset = 'utf-8';
}
hiddenElement = document.createElement('a');
hiddenElement.href = href || ("data:" + type + ";charset=" + charset + "," + (encodeURI(data)));
hiddenElement.target = '_blank';
hiddenElement.download = filename;
return hiddenElement.click();
};
function downloadKey() {
return download('iris_private_key.txt', JSON.stringify(key), 'text/csv', 'utf-8');
};