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webapp_demo.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport"
content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<meta name="format-detection" content="telephone=no" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="MobileOptimized" content="176" />
<meta name="HandheldFriendly" content="True" />
<meta name="robots" content="noindex,nofollow" />
<title></title>
<script src="https://telegram.org/js/telegram-web-app.js?1"></script>
<script>
function setThemeClass() {
document.documentElement.className = Telegram.WebApp.colorScheme;
}
Telegram.WebApp.onEvent('themeChanged', setThemeClass);
setThemeClass();
</script>
<style>
body {
--bg-color: var(--tg-theme-bg-color, #fff);
font-family: sans-serif;
background-color: var(--bg-color);
color: var(--tg-theme-text-color, #222);
font-size: 14px;
margin: 0;
padding: 0;
color-scheme: var(--tg-color-scheme);
}
body.gray {
background-color: var(--tg-theme-secondary-bg-color, #efefef);
}
a {
color: var(--tg-theme-link-color, #2678b6);
}
.btn {
font-size: 14px;
padding: 10px 17px;
}
.btn-primary {
background-color: var(--tg-theme-button-color, #50a8eb);
color: var(--tg-theme-button-text-color, #fff);
border: none;
}
button {
display: block;
width: 100%;
font-size: 14px;
margin: 15px 0;
padding: 12px 20px;
border: none;
border-radius: 4px;
background-color: var(--tg-theme-button-color, #50a8eb);
color: var(--tg-theme-button-text-color, #ffffff);
cursor: pointer;
}
.main-container {
padding: 15px;
}
.list-header {
text-transform: uppercase;
font-size: .92em;
color: var(--tg-theme-hint-color, #ccc);
margin: 0 0 10px;
}
a.list-group-item,
button.list-group-item {
color: var(--tg-theme-text-color, #222);
}
.main-container p {
margin: 0 0 10px;
}
.main-container pre,
.main-container > .btn {
margin: 0 0 7px;
}
.main-container pre + .hint,
.main-container > .btn + .hint {
text-align: center;
margin: 0 0 15px;
}
button[disabled] {
opacity: 0.6;
cursor: auto;
pointer-events: none;
}
button.close_btn {
/*position: fixed;*/
position: absolute;
left: 0;
right: 0;
bottom: 0;
border-radius: 0;
margin: 0;
padding: 16px 20px;
text-transform: uppercase;
}
input[type="text"],
.input[contenteditable] {
display: block;
box-sizing: border-box;
font-size: 14px;
width: 100%;
padding: 12px 20px;
margin: 15px 0;
border: 1px solid var(--tg-theme-link-color, #000);
background-color: var(--tg-theme-bg-color, #ffffff);
border-radius: 4px;
color: var(--tg-theme-text-color, #222222);
text-align: start;
}
input[type="text"]::-webkit-input-placeholder {
color: var(--tg-theme-hint-color, #ccc);
}
input[type="text"]::-moz-placeholder {
color: var(--tg-theme-hint-color, #ccc);
}
input[type="text"]:-ms-input-placeholder {
color: var(--tg-theme-hint-color, #ccc);
}
.input[data-placeholder] {
position: relative;
}
.input[data-placeholder]:empty:before {
position: absolute;
left: 0;
right: 0;
content: attr(data-placeholder);
color: var(--tg-theme-hint-color, #ccc);
padding: 0 20px;
font-weight: normal;
white-space: nowrap;
text-overflow: ellipsis;
overflow: hidden;
pointer-events: none;
z-index: -1;
}
section {
padding: 15px;
text-align: center;
background-color: var(--bg-color, #ffffff);
}
section#top_sect {
background-color: var(--tg-theme-bg-color, #ffffff);
}
section#top_sect.second {
background-color: var(--tg-theme-secondary-bg-color, #efefef);
}
section .sect_row {
margin: 10px 0;
}
section + section {
padding: 0 15px 65px;
}
p {
margin: 40px 0 15px;
}
ul {
text-align: left;
}
li {
color: var(--tg-theme-hint-color, #a8a8a8);
}
textarea {
width: 100%;
box-sizing: border-box;
padding: 7px;
}
pre {
background: rgba(0, 0, 0, .07);
color: var(--tg-theme-text-color, #222);
font-size: 12px;
border: none;
border-radius: 4px;
padding: 8px;
margin: 7px 0;
word-break: break-word;
white-space: pre-wrap;
text-align: left;
}
.dark pre {
background: rgba(255, 255, 255, .15);
}
.chat_img {
width: 30px;
border-radius: 15px;
margin-right: 10px;
}
.columns {
display: flex;
}
.columns>* {
flex-grow: 1;
}
.hint {
font-size: .8em;
color: var(--tg-theme-hint-color, #a8a8a8);
}
.ok {
color: green;
}
.err {
color: red;
}
.status_need {
display: none;
}
#fixed_wrap {
position: fixed;
left: 0;
right: 0;
top: 0;
transform: translateY(100vh);
}
.viewport-container {
position: fixed;
left: 0;
right: 0;
top: 0;
height: var(--tg-viewport-stable-height, 100vh);
transition: height .2s ease;
}
.viewport-container .main-container {
position: absolute;
left: 0;
right: 0;
top: 0;
bottom: 0;
display: flex;
justify-content: center;
align-items: center;
}
.viewport-container .main-container button {
width: auto;
}
.viewport-border,
.viewport-stable_border {
position: fixed;
left: 0;
right: 0;
top: 0;
height: var(--tg-viewport-height, 100vh);
pointer-events: none;
}
.viewport-stable_border {
height: var(--tg-viewport-stable-height, 100vh);
}
.viewport-border:before,
.viewport-stable_border:before {
content: attr(text);
display: inline-block;
position: absolute;
background: gray;
right: 0;
top: 0;
font-size: 7px;
padding: 2px 4px;
vertical-align: top;
}
.viewport-stable_border:before {
background: green;
left: 0;
right: auto;
}
.viewport-border:after,
.viewport-stable_border:after {
content: '';
display: block;
position: absolute;
left: 0;
right: 0;
top: 0;
bottom: 0;
border: 2px dashed gray;
}
.viewport-stable_border:after {
border-color: green;
}
small {
font-size: 12px;
}
</style>
</head>
<body class="" style="visibility: hidden;">
<section id="top_sect" class="second">
<button id="main_btn" onclick="DemoApp.sendMessage('');">Send «Hello, World!»</button>
<button id="with_webview_btn" onclick="DemoApp.sendMessage('', true);">Send «Hello, World!» with inline webview button</button>
<button id="data_btn" onclick="DemoApp.sendTime(true);">Send current time to bot (x10)</button>
<button onclick="DemoApp.expand();">Expand Webview</button>
<button onclick="DemoApp.toggleMainButton(this);">Hide Main Button</button>
<input type="text" placeholder="Input text in regular input..." id="regular_field" />
<div
class="input"
contenteditable="true"
data-placeholder="Input text in contenteditable field..."
id="text_field"
></div>
<div id="peer_wrap" style="display:none">
<img id="peer_photo" class="chat_img" src="">
<span id="peer_name"></span>
</div>
<div class="sect_row">Header: <select id="header_color_sel">
<option value="bg_color" selected>bg_color</option>
<option value="secondary_bg_color">secondary_bg_color</option>
</select></div>
<div class="sect_row">Background: <input type="color" id="bg_color_input" /> <select id="bg_color_sel">
<option value="bg_color" selected>bg_color</option>
<option value="secondary_bg_color">secondary_bg_color</option>
<option value="custom" id="bg_color_val">custom...</option>
</select></div>
</section>
<section>
<div id="btn_status" class="hint" style="display: none;">
</div>
<p>Test links:</p>
<ul>
<li><a id="regular_link" href="">Regular link #2</a> (opens inside webview)</li>
<li><a href="https://telegram.org/" target="_blank">target="_blank" link</a> (opens outside webview)</li>
<li><a href="javascript:window.open('https://telegram.org/');">window.open() link</a> (opens outside webview)</li>
<li><a href="https://t.me/like">LikeBot t.me link</a> (opens inside Telegram app)</li>
<li><a href="javascript:Telegram.WebApp.openTelegramLink('https://t.me/vote');">web_app_open_tg_link()</a> (opens inside Telegram app)</li>
<li><a href="javascript:Telegram.WebApp.openLink('https://google.com/');">web_app_open_link()</a> (opens outside webview)</li>
<li><a href="tg://resolve?domain=vote">VoteBot tg:// link</a> (does not open)</li>
<li><a href="javascript:Telegram.WebApp.openLink('https://telegra.ph/api',{try_instant_view:true});">web_app_open_link({try_instant_view:true})</a> (opens IV inside Telegram app)</li>
</ul>
<p>Test permissions:</p>
<ul>
<li><a href="javascript:;" onclick="return DemoApp.requestLocation(this);">Request Location</a> <span></span></li>
<li><a href="javascript:;" onclick="return DemoApp.requestVideo(this);">Request Video</a> <span></span></li>
<li><a href="javascript:;" onclick="return DemoApp.requestAudio(this);">Request Audio</a> <span></span></li>
<li><a href="javascript:;" onclick="return DemoApp.requestAudioVideo(this);">Request Audio+Video</a> <span></span></li>
<li><a href="javascript:;" onclick="return DemoApp.testClipboard(this);" id="clipboard_test">Read from clipboard</a> <span></span></li>
</ul>
<p>Test alerts:</p>
<div class="columns">
<ul>
<li><a href="javascript:;" onclick="alert('Hello!');">alert</a></li>
<li><a href="javascript:;" onclick="confirm('Are you sure?');">confirm</a></li>
<li><a href="javascript:;" onclick="prompt('How old are you?');">prompt</a></li>
</ul>
<ul>
<li><a href="javascript:;" onclick="DemoApp.showAlert('Hello!');">showAlert</a></li>
<li><a href="javascript:;" onclick="DemoApp.showConfirm('Are you sure?');">showConfirm</a></li>
<li><a href="javascript:;" onclick="DemoApp.showPopup();">showPopup</a></li>
<li><a href="javascript:;" onclick="DemoApp.showScanQrPopup();">showScanQrPopup</a></li>
<li><a href="javascript:;" onclick="DemoApp.showScanQrPopup(true);">showScanQrPopup (links only)</a></li>
</ul>
</div>
<p>Haptics:</p>
<ul>
<li>Impact: <a href="javascript:Telegram.WebApp.HapticFeedback.impactOccurred('heavy');">heavy</a>, <a href="javascript:Telegram.WebApp.HapticFeedback.impactOccurred('light');">light</a>, <a href="javascript:Telegram.WebApp.HapticFeedback.impactOccurred('medium');">medium</a>, <a href="javascript:Telegram.WebApp.HapticFeedback.impactOccurred('rigid');">rigid</a>, <a href="javascript:Telegram.WebApp.HapticFeedback.impactOccurred('soft');">soft</a><br><br></li>
<li>Notification: <a href="javascript:Telegram.WebApp.HapticFeedback.notificationOccurred('error');">error</a>, <a href="javascript:Telegram.WebApp.HapticFeedback.notificationOccurred('success');">success</a>, <a href="javascript:Telegram.WebApp.HapticFeedback.notificationOccurred('warning');">warning</a><br><br></li>
<li>Selection: <a href="javascript:Telegram.WebApp.HapticFeedback.selectionChanged();">changed</a><br><br></li>
</ul>
<pre><code id="webview_data"></code></pre>
<div class="hint">
Data passed to webview.
<span id="webview_data_status" class="status_need">Checking hash...</span>
</div>
<pre><code id="theme_data"></code></pre>
<div class="hint">
Theme params
</div>
<div class="hint">
Version: <span id="ver"></span>,
platform: <span id="platform"></span>
</div>
</section>
<div class="viewport-border"></div>
<div class="viewport-stable_border"></div>
<script type="application/javascript">
/*
* This is a demo code for Telegram WebApp for Bots
* It contains basic examples of how to use the API
* Note: all requests to backend are disabled in this demo, you should use your own backend
*/
const DemoApp = {
initData: Telegram.WebApp.initData || '',
initDataUnsafe: Telegram.WebApp.initDataUnsafe || {},
MainButton: Telegram.WebApp.MainButton,
init(options) {
document.body.style.visibility = '';
Telegram.WebApp.ready();
Telegram.WebApp.MainButton.setParams({
text: 'CLOSE WEBVIEW',
is_visible: true
}).onClick(DemoApp.close);
},
expand() {
Telegram.WebApp.expand();
},
close() {
Telegram.WebApp.close();
},
toggleMainButton(el) {
const mainButton = Telegram.WebApp.MainButton;
if (mainButton.isVisible) {
mainButton.hide();
el.innerHTML = 'Show Main Button';
} else {
mainButton.show();
el.innerHTML = 'Hide Main Button';
}
},
// actions
sendMessage(msg_id, with_webview) {
if (!DemoApp.initDataUnsafe.query_id) {
alert('WebViewQueryId not defined');
return;
}
document.querySelectorAll('button').forEach((btn) => btn.disabled = true);
const btn = document.querySelector('#btn_status');
btn.textContent = 'Sending...';
DemoApp.apiRequest('sendMessage', {
msg_id: msg_id || '',
with_webview: !DemoApp.initDataUnsafe.receiver && with_webview ? 1 : 0
}, function(result) {
document.querySelectorAll('button').forEach((btn) => btn.disabled = false);
if (result.response) {
if (result.response.ok) {
btn.textContent = 'Message sent successfully!';
btn.className = 'ok';
btn.style.display = 'block';
} else {
btn.textContent = result.response.description;
btn.className = 'err';
btn.style.display = 'block';
alert(result.response.description);
}
} else if (result.error) {
btn.textContent = result.error;
btn.className = 'err';
btn.style.display = 'block';
alert(result.error);
} else {
btn.textContent = 'Unknown error';
btn.className = 'err';
btn.style.display = 'block';
alert('Unknown error');
}
});
},
changeMenuButton(close) {
document.querySelectorAll('button').forEach((btn) => btn.disabled = true);
const btnStatus = document.querySelector('#btn_status');
btnStatus.textContent = 'Changing button...';
DemoApp.apiRequest('changeMenuButton', {}, function(result) {
document.querySelectorAll('button').forEach((btn) => btn.disabled = false);
if (result.response) {
if (result.response.ok) {
btnStatus.textContent = 'Button changed!';
btnStatus.className = 'ok';
btnStatus.style.display = 'block';
Telegram.WebApp.close();
} else {
btnStatus.textContent = result.response.description;
btnStatus.className = 'err';
btnStatus.style.display = 'block';
alert(result.response.description);
}
} else if (result.error) {
btnStatus.textContent = result.error;
btnStatus.className = 'err';
btnStatus.style.display = 'block';
alert(result.error);
} else {
btnStatus.textContent = 'Unknown error';
btnStatus.className = 'err';
btnStatus.style.display = 'block';
alert('Unknown error');
}
});
if (close) {
setTimeout(function() {
Telegram.WebApp.close();
}, 50);
}
},
checkInitData() {
const webViewStatus = document.querySelector('#webview_data_status');
if (DemoApp.initDataUnsafe.query_id &&
DemoApp.initData &&
webViewStatus.classList.contains('status_need')
) {
webViewStatus.classList.remove('status_need');
DemoApp.apiRequest('checkInitData', {}, function(result) {
if (result.ok) {
webViewStatus.textContent = 'Hash is correct (async)';
webViewStatus.className = 'ok';
} else {
webViewStatus.textContent = result.error + ' (async)';
webViewStatus.className = 'err';
}
});
}
},
sendText(spam) {
const textField = document.querySelector('#text_field');
const text = textField.value;
if (!text.length) {
return textField.focus();
}
if (byteLength(text) > 4096) {
return alert('Text is too long');
}
const repeat = spam ? 10 : 1;
for (let i = 0; i < repeat; i++) {
Telegram.WebApp.sendData(text);
}
},
sendTime(spam) {
const repeat = spam ? 10 : 1;
for (let i = 0; i < repeat; i++) {
Telegram.WebApp.sendData(new Date().toString());
}
},
// Alerts
showAlert(message) {
Telegram.WebApp.showAlert(message);
},
showConfirm(message) {
Telegram.WebApp.showConfirm(message);
},
showPopup() {
Telegram.WebApp.showPopup({
title: 'Popup title',
message: 'Popup message',
buttons: [
{id: 'delete', type: 'destructive', text: 'Delete all'},
{id: 'faq', type: 'default', text: 'Open FAQ'},
{type: 'cancel'},
]
}, function(buttonId) {
if (buttonId === 'delete') {
DemoApp.showAlert("'Delete all' selected");
} else if (buttonId === 'faq') {
Telegram.WebApp.openLink('https://telegram.org/faq');
}
});
},
showScanQrPopup: function(linksOnly) {
Telegram.WebApp.showScanQrPopup({
text: linksOnly ? 'with any link' : 'for test purposes'
}, function(text) {
if (linksOnly) {
const lowerText = text.toString().toLowerCase();
if (lowerText.substring(0, 7) === 'http://' ||
lowerText.substring(0, 8) === 'https://'
) {
setTimeout(function() {
Telegram.WebApp.openLink(text);
}, 50);
return true;
}
} else {
DemoApp.showAlert(text);
return true;
}
});
},
// Permissions
requestLocation(el) {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function (position) {
el.nextElementSibling.innerHTML = '(' + position.coords.latitude + ', ' + position.coords.longitude + ')';
el.nextElementSibling.className = 'ok';
});
} else {
el.nextElementSibling.innerHTML = 'Geolocation is not supported in this browser.';
el.nextElementSibling.className = 'err';
}
return false;
},
requestVideo(el) {
if (navigator.mediaDevices) {
navigator.mediaDevices.getUserMedia({ audio: false, video: true }).then(function(stream) {
el.nextElementSibling.innerHTML = '(Access granted)';
});
} else {
el.nextElementSibling.innerHTML = 'Media devices is not supported in this browser.';
el.nextElementSibling.className = 'err';
}
return false;
},
requestAudio(el) {
if (navigator.mediaDevices) {
navigator.mediaDevices.getUserMedia({ audio: true, video: false }).then(function(stream) {
el.nextElementSibling.innerHTML = '(Access granted)';
el.nextElementSibling.className = 'ok';
});
} else {
el.nextElementSibling.innerHTML = 'Media devices is not supported in this browser.';
el.nextElementSibling.className = 'err';
}
return false;
},
requestAudioVideo(el) {
if (navigator.mediaDevices) {
navigator.mediaDevices.getUserMedia({ audio: true, video: true }).then(function(stream) {
el.nextElementSibling.innerHTML = '(Access granted)';
el.nextElementSibling.className = 'ok';
});
} else {
el.nextElementSibling.innerHTML = 'Media devices is not supported in this browser.';
el.nextElementSibling.className = 'err';
}
return false;
},
testClipboard(el) {
Telegram.WebApp.readTextFromClipboard(function(clipText) {
if (clipText === null) {
el.nextElementSibling.innerHTML = 'Clipboard text unavailable.';
el.nextElementSibling.className = 'err';
} else {
el.nextElementSibling.innerHTML = '(Read from clipboard: «' + clipText + '»)';
el.nextElementSibling.className = 'ok';
}
});
return false;
},
// Other
apiRequest(method, data, onCallback) {
// DISABLE BACKEND FOR FRONTEND DEMO
// YOU CAN USE YOUR OWN REQUESTS TO YOUR OWN BACKEND
// CHANGE THIS CODE TO YOUR OWN
return onCallback && onCallback({error: 'This function (' + method + ') should send requests to your backend. Please, change this code to your own.'});
const authData = DemoApp.initData || '';
fetch('/demo/api', {
method: 'POST',
body: JSON.stringify(Object.assign(data, {
_auth: authData,
method: method,
})),
credentials: 'include',
headers: {
'Content-Type': 'application/json'
}
}).then(function(response) {
return response.json();
}).then(function(result) {
onCallback && onCallback(result);
}).catch(function(error) {
onCallback && onCallback({error: 'Server error'});
});
}
}
const DemoAppMenu = {
init() {
DemoApp.init();
document.body.classList.add('gray');
Telegram.WebApp.setHeaderColor('secondary_bg_color');
}
};
const DemoAppInitData = {
init() {
DemoApp.init();
Telegram.WebApp.onEvent('themeChanged', function() {
document.getElementById('theme_data').innerHTML = JSON.stringify(Telegram.WebApp.themeParams, null, 2);
});
document.getElementById('webview_data').innerHTML = JSON.stringify(DemoApp.initDataUnsafe, null, 2);
document.getElementById('theme_data').innerHTML = JSON.stringify(Telegram.WebApp.themeParams, null, 2);
DemoApp.checkInitData();
}
};
const DemoAppViewport = {
init() {
DemoApp.init();
Telegram.WebApp.onEvent('viewportChanged', DemoAppViewport.setData);
DemoAppViewport.setData();
},
setData() {
document.querySelector('.viewport-border')
.setAttribute('text', window.innerWidth + ' x ' + round(Telegram.WebApp.viewportHeight, 2))
document.querySelector('.viewport-stable_border')
.setAttribute('text', window.innerWidth + ' x ' + round(Telegram.WebApp.viewportStableHeight, 2) +
' | is_expanded: ' + (Telegram.WebApp.isExpanded ? 'true' : 'false'));
}
};
function byteLength(str) {
if (window.Blob) {
try { return new Blob([str]).size; } catch (e) {}
}
let s = str.length;
for (let i = str.length - 1; i >= 0; i--) {
const code = str.charCodeAt(i);
if (code > 0x7f && code <= 0x7ff) {
s++;
} else if (code > 0x7ff && code <= 0xffff) {
s+=2;
}
if (code >= 0xDC00 && code <= 0xDFFF) {
i--;
}
}
return s;
}
function round(val, d) {
const k = Math.pow(10, d || 0);
return Math.round(val * k) / k;
}
</script>
<script type="application/javascript">
/*
* This part of code is used to initialize the demo app and set up the event handlers we need.
*/
Telegram.WebApp.onEvent('themeChanged', function() {
document.getElementById('theme_data').innerHTML = JSON.stringify(Telegram.WebApp.themeParams, null, 2);
});
if (DemoApp.initDataUnsafe.query_id) {
document.getElementById('main_btn').style.display = 'block';
}
document.getElementById('with_webview_btn').style.display = !!DemoApp.initDataUnsafe.query_id && !DemoApp.initDataUnsafe.receiver ? 'block' : 'none';
document.getElementById('webview_data').innerHTML = JSON.stringify(DemoApp.initDataUnsafe, null, 2);
document.getElementById('theme_data').innerHTML = JSON.stringify(Telegram.WebApp.themeParams, null, 2);
document.getElementById('regular_link').setAttribute('href', document.getElementById('regular_link').getAttribute('href') + location.hash);
document.getElementById('text_field').focus();
document.getElementById('regular_field').addEventListener('input', function(e) {
const val = this.value.toLowerCase();
if (val.indexOf('progress') >= 0) {
Telegram.WebApp.MainButton.showProgress();
} else {
Telegram.WebApp.MainButton.hideProgress();
}
});
document.getElementById('ver').innerHTML = Telegram.WebApp.version;
document.getElementById('platform').innerHTML = Telegram.WebApp.platform;
if (DemoApp.initDataUnsafe.receiver) {
document.getElementById('peer_wrap').style.display = 'block';
document.getElementById('peer_name').innerHTML = DemoApp.initDataUnsafe.receiver.first_name + ' ' + DemoApp.initDataUnsafe.receiver.last_name;
if (DemoApp.initDataUnsafe.receiver.photo_url) {
document.getElementById('peer_photo').setAttribute('src', DemoApp.initDataUnsafe.receiver.photo_url);
} else {
document.getElementById('peer_photo').style.display = 'none';
}
} else if (DemoApp.initDataUnsafe.chat) {
document.getElementById('peer_wrap').style.display = 'block';
document.getElementById('peer_name').innerHTML = DemoApp.initDataUnsafe.chat.title;
if (DemoApp.initDataUnsafe.chat.photo_url) {
document.getElementById('peer_photo').setAttribute('src', DemoApp.initDataUnsafe.chat.photo_url);
} else {
document.getElementById('peer_photo').style.display = 'none';
}
}
DemoApp.checkInitData();
DemoApp.init();
function setViewportData() {
document.querySelector('.viewport-border')
.setAttribute('text', window.innerWidth + ' x ' + round(Telegram.WebApp.viewportHeight, 2))
document.querySelector('.viewport-stable_border')
.setAttribute('text', window.innerWidth + ' x ' + round(Telegram.WebApp.viewportStableHeight, 2) +
' | is_expanded: ' + (Telegram.WebApp.isExpanded ? 'true' : 'false'));
}
Telegram.WebApp.setHeaderColor('secondary_bg_color');
Telegram.WebApp.onEvent('viewportChanged', setViewportData);
setViewportData();
Telegram.WebApp.onEvent('settingsButtonClicked', function() {
alert('Settings opened!');
});
let prevBgColorVal = document.getElementById('bg_color_sel').value;
const bgColorInput = document.getElementById('bg_color_input');
const headerColorSel = document.getElementById('header_color_sel');
bgColorInput.value = Telegram.WebApp.backgroundColor;
document.body.setAttribute('style', '--bg-color:' + Telegram.WebApp.backgroundColor);
headerColorSel.value = 'secondary_bg_color';
headerColorSel.addEventListener('change', function(e) {
const colorKey = e.target.value;
document.getElementById('top_sect').classList.toggle('second', colorKey === 'secondary_bg_color');
Telegram.WebApp.setHeaderColor(colorKey);
document.body.setAttribute('style', '--bg-color:' + Telegram.WebApp.backgroundColor);
});
bgColorInput.addEventListener('change', function(e) {
const color = e.target.value;
document.getElementById('bg_color_val').textContent = color;
headerColorSel.value = 'custom';
prevBgColorVal = document.getElementById('bg_color_sel').value;
Telegram.WebApp.setBackgroundColor(color);
document.body.setAttribute('style', '--bg-color:' + Telegram.WebApp.backgroundColor);
});
headerColorSel.addEventListener('change', function(e) {
const colorKey = e.target.value;
if (colorKey === 'custom') {
headerColorSel.value = prevBgColorVal;
bgColorInput.focus();
} else {
document.getElementById('bg_color_val').textContent = 'custom...';
Telegram.WebApp.setBackgroundColor(colorKey);
document.body.setAttribute('style', '--bg-color:' + Telegram.WebApp.backgroundColor);
bgColorInput.value = Telegram.WebApp.backgroundColor;
prevBgColorVal = headerColorSel.value;
}
});
Telegram.WebApp.onEvent('themeChanged', function() {
bgColorInput.value = Telegram.WebApp.backgroundColor;
document.body.setAttribute('style', '--bg-color:' + Telegram.WebApp.backgroundColor);
});
DemoApp.testClipboard(document.getElementById('clipboard_test'));
</script>
</body>
</html>