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chat-widget.component.ts
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chat-widget.component.ts
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/**
* @license
* Copyright Stbui All Rights Reserved.
*/
import { Component, OnInit, ElementRef, ViewChild } from '@angular/core';
const randomMessages = [
'没事的时候,打打工,不为赚钱,只为锻炼自己。',
'今天天气不错,欢迎新人来到。',
'你匿了那么久,现在终于入群了。',
'亲,欢迎您的再次关注,有什么需要我的帮助吗?很乐意为你效劳!',
'对不起,您的要求不在我们的服务范围内',
'很抱歉,我无法帮助您!',
'您的问题我需要核实一下,请您稍等。',
'请问还有什么可以帮您?',
'感谢您的咨询,再见!',
'请问还有什么可以帮助您?',
'您的问题我已记录好,会提交给相关人员处理,并在三个工作日内回复您。',
':)'
];
const rand = max => Math.floor(Math.random() * max);
const getRandomMessage = () => randomMessages[rand(randomMessages.length)];
@Component({
selector: 'stbui-chat-widget',
templateUrl: './chat-widget.component.html',
styleUrls: ['./chat-widget.component.scss']
})
export class ChatWidgetComponent implements OnInit {
@ViewChild('message', { static: false }) message: ElementRef;
@ViewChild('bottom', { static: false }) bottom: ElementRef;
visible = false;
operator = {
name: 'Stbui',
status: 'online',
avatar: `https://randomuser.me/api/portraits/women/${rand(100)}.jpg`
};
client = {
name: '访客',
status: 'online',
avatar: `https://randomuser.me/api/portraits/men/${rand(100)}.jpg`
};
messages = [];
constructor() { }
ngOnInit() {
setTimeout(() => {
this.addMessage(
this.operator,
'您好,欢迎光临,很高兴为您服务!',
'received'
);
}, 1500);
}
addMessage(from, text, type: 'received' | 'sent') {
this.messages.unshift({
from,
text,
type,
date: new Date().getTime()
});
this.scrollToBottom();
}
scrollToBottom() {
if (this.bottom !== undefined) {
this.bottom.nativeElement.scrollIntoView();
}
}
randomMessage() {
this.addMessage(this.operator, getRandomMessage(), 'received');
}
sendMessage({ message }) {
if (message.trim() === '') {
return;
}
this.addMessage(this.client, message, 'sent');
setTimeout(() => this.randomMessage(), 1000);
}
toggleChat() {
this.visible = !this.visible;
}
onSubmit() {
const message = this.getMessage();
if (message.trim() === '') {
return;
}
this.sendMessage({ message });
this.clearMessage();
this.focusMessage();
}
getMessage() {
return this.message.nativeElement.value;
}
focusMessage() {
this.message.nativeElement.focus();
}
clearMessage() {
this.message.nativeElement.value = '';
}
}