- index.html
- style.css
- script.js
HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Chat</title>
<link href="style.css" rel="stylesheet">
</head>
<body>
<section class="chat">
<h1 class="visually-hidden">Chat</h1>
<div class="chat-content">
</div>
<form class="chat-form" action="https://echo.htmlacademy.ru/courses" method="post">
<input class="chat-form-input" type="text" aria-label="Your message" placeholder="Write something" required>
<button class="chat-form-button" type="submit">Submit</button>
</form>
</section>
<template id="message-template">
<div class="chat-message" tabindex="0">
<span class="chat-message-name">Unidentified raccoon</span>
<p class="chat-message-text"></p>
<button class="chat-message-button" type="button">Delete</button>
</div>
</template>
<script src="script.js"></script>
</body>
</html>
CSS
@font-face {
font-weight: 400;
font-family: "Muller";
font-style: normal;
font-display: swap;
src: url("fonts/Muller.woff") format("woff");
}
html,
body {
height: 100%;
}
body {
padding: 0;
margin: 0;
min-width: 420px;
font-size: 16px;
line-height: 20px;
font-family: "Muller", sans-serif;
}
.visually-hidden {
position: absolute;
width: 1px;
height: 1px;
margin: -1px;
padding: 0;
overflow: hidden;
white-space: nowrap;
border: 0;
clip: rect(0 0 0 0);
clip-path: inset(100%);
}
.chat {
display: flex;
flex-direction: column;
height: 100%;
}
.chat-content {
display: grid;
align-content: end;
align-items: end;
justify-content: end;
flex-grow: 1;
padding: 15px 20px 24px 30px;
overflow: auto;
background-color: #5c8ab3;
background-image: url("pattern.svg");
background-repeat: repeat;
}
.chat-message {
position: relative;
padding: 3px 20px 11px;
background-color: #ffffff;
box-shadow: 0 4px 4px rgba(0, 0, 0, 0.15);
border-radius: 20px 4px 4px 20px;
max-width: 425px;
}
.chat-message:hover .chat-message-button,
.chat-message:focus .chat-message-button {
visibility: visible;
}
.chat-message:focus-within .chat-message-button {
visibility: visible;
}
.chat-message-text {
margin: 0;
}
.chat-message-name {
display: inline-block;
margin-bottom: 2px;
font-size: 12px;
line-height: 16px;
color: #6994ba;
}
.chat-message-button {
position: absolute;
width: 18px;
height: 18px;
top: -5px;
right: -5px;
padding: 0;
visibility: hidden;
background-color: #ffffff;
background-image: url("icon-cross.svg");
background-repeat: no-repeat;
background-position: center;
box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
border: none;
border-radius: 50%;
font: inherit;
font-size: 0;
user-select: none;
touch-action: manipulation;
cursor: pointer;
}
.chat-message + .chat-message {
margin-top: 12px;
}
.chat-message:last-child {
border-radius: 20px 4px 20px 20px;
}
.chat-message:first-child {
border-radius: 20px 20px 4px 20px;
}
.chat-form {
display: flex;
align-items: center;
padding: 32px 20px;
background-color: #265681;
}
.chat-form-input {
flex-grow: 1;
box-sizing: border-box;
margin-right: 16px;
padding: 9px 20px 11px;
border: 2px solid #ffffff;
background-color: #ffffff;
}
.chat-form-input::placeholder {
color: #cccccc;
}
.chat-form-input:hover {
border-color: #56cf4c;
outline: none;
}
.chat-form-input:focus {
border-color: #9edcff;
outline: none;
}
.chat-form-input,
.chat-form-button {
border-radius: 50px;
font: inherit;
}
.chat-form-button {
flex-shrink: 0;
padding: 9px 20px;
color: #ffffff;
background-color: #39b54a;
box-shadow: 0 4px 4px rgba(0, 0, 0, 0.15);
border: 2px solid transparent;
user-select: none;
outline: none;
touch-action: manipulation;
cursor: pointer;
}
.chat-form-button::before {
content: "";
display: inline-block;
vertical-align: middle;
width: 19px;
height: 20px;
margin-right: 6px;
background-image: url("icon-plane.svg");
background-repeat: no-repeat;
}
.chat-form-button:hover {
background-color: #56cf4c;
box-shadow: 0 8px 4px rgba(0, 0, 0, 0.15);
}
.chat-form-button:focus {
border-color: 2px solid #9edcff;
}
.chat-form-button:active {
background-color: #208b44;
box-shadow: none;
}
JavaScript
/*
You need to program an instant messaging app. It must have the following functionality:
— The message template is in the template tag with the message-template ID.
— The message block (with the chat-message class) must contain the message text, a delete button, and a username.
— The new message is added to the end of the container with the chat-content class.
— To add a new message, you need to enter text in the input field (an element with the chat-form-input class) and click the “Submit” button (which sends data from the form with the chat-form class).
- To delete the message, you need to click the cross button (an element with the chat-message-button class). This button appears when you hover the mouse over a message.
*/
Click inside the mini browser to put the focus in this window.
Console
var chatContainer = document.querySelector('.chat-content');
var newMessageForm = document.querySelector('.chat-form');
var newMessageInput = newMessageForm.querySelector('.chat-form-input');
var messageTemplate = document.querySelector('#message-template').content;
var newMessageTemplate = messageTemplate.querySelector('.chat-message');
var addClickHandler = function (element, button) {
button.addEventListener('click', function () {
element.remove();
});
};
newMessageForm.addEventListener('submit', function (evt) {
evt.preventDefault();
var messageText = newMessageInput.value;
var newMessage = newMessageTemplate.cloneNode(true);
var newMessageText = newMessage.querySelector('.chat-message-text');
newMessageText.textContent = messageText;
var deleteButton = newMessage.querySelector('.chat-message-button');
addClickHandler(newMessage, deleteButton);
chatContainer.appendChild(newMessage);
newMessageInput.value = '';
});