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index.html
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<!DOCTYPE html>
<html>
<head>
<title>Vue School Chat Room</title>
<script src="https://unpkg.com/vue"></script>
<script src="https://www.gstatic.com/firebasejs/4.12.0/firebase.js"></script>
<script src="https://unpkg.com/native-toast@1.2.1/dist/native-toast.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css">
<link rel="stylesheet" href="https://unpkg.com/native-toast@1.2.1/dist/native-toast.css">
</head>
<body>
<div id="chat" class="container">
<h1>Vue School Chat Room</h1>
<!-- Messages -->
<div v-for="message in messages" class="card">
<div class="card-body">
<!-- nickname -->
<h6 class="card-subtitle mb-2 text-muted">{{ message.nickname }}</h6>
<!-- content -->
<p v-if="message !== editingMessage" class="card-text">{{ message.text }}</p>
<textarea v-else v-model="messageText" class="form-control"></textarea>
<!-- actions -->
<div v-if="message !== editingMessage">
<a @click.prevent="deleteMessage(message)" href="#" class="card-link">delete</a>
<a @click.prevent="editMessage(message)" href="#" class="card-link">edit</a>
</div>
<div v-else>
<a @click.prevent="cancelEditing" href="#" class="card-link">cancel</a>
<a @click.prevent="updateMessage" href="#" class="card-link">update</a>
</div>
</div>
</div>
<hr>
<!-- New Message -->
<form v-if="!editingMessage" @submit.prevent="storeMessage">
<div class="form-group">
<label>Message:</label>
<textarea v-model="messageText" class="form-control"></textarea>
</div>
<div class="form-group">
<label>Nickname:</label>
<input v-model="nickname" class="form-control"/>
</div>
<button class="btn btn-primary">Send</button>
</form>
</div>
<script type="text/javascript">
const config = {
apiKey: "AIzaSyCIretB6FXPfHmk3Ib5zokwZ43FVjGZbc0",
authDomain: "vue-school-chat-room.firebaseapp.com",
databaseURL: "https://vue-school-chat-room.firebaseio.com",
projectId: "vue-school-chat-room",
storageBucket: "vue-school-chat-room.appspot.com",
messagingSenderId: "425342500253"
}
firebase.initializeApp(config)
const database = firebase.database()
const messagesRef = database.ref('messages')
new Vue({
el: "#chat",
data: {
messages: [],
messageText: '',
nickname: 'hootlex',
editingMessage: null
},
methods: {
storeMessage () {
messagesRef.push({text: this.messageText, nickname: this.nickname})
this.messageText = ''
},
deleteMessage (message) {
messagesRef.child(message.id).remove()
},
editMessage (message) {
this.editingMessage = message
this.messageText = message.text
},
cancelEditing () {
this.editingMessage = null
this.messageText = ''
},
updateMessage () {
messagesRef.child(this.editingMessage.id).update({text: this.messageText})
this.cancelEditing()
}
},
created () {
// value = snapshot.val() | key = snapshot.key
messagesRef.on('child_added', snapshot => {
this.messages.push({...snapshot.val(), id: snapshot.key})
if (snapshot.val().nickname !== this.nickname) {
nativeToast({
message: `New message by ${snapshot.val().nickname}`,
type: 'success'
})
}
})
messagesRef.on('child_removed', snapshot => {
const deletedMessage = this.messages.find(message => message.id === snapshot.key)
const index = this.messages.indexOf(deletedMessage)
this.messages.splice(index, 1)
if (snapshot.val().nickname !== this.nickname) {
nativeToast({
message: `Message deleted by ${snapshot.val().nickname}`,
type: 'warning'
})
}
})
messagesRef.on('child_changed', snapshot => {
const updatedMessage = this.messages.find(message => message.id === snapshot.key)
updatedMessage.text = snapshot.val().text
if (snapshot.val().nickname !== this.nickname) {
nativeToast({
message: `Message edited by ${snapshot.val().nickname}`,
type: 'info'
})
}
})
}
})
</script>
</body>
</html>