# Dialog 对话框


### 介绍

模态对话框，在浮层中显示，引导用户进行相关操作，常用于消息提示、消息确认，或在当前页面内完成特定的交互操作。

### 安装
    
```javascript
import { createApp } from 'vue';
import { Dialog } from '@nutui/nutui-taro';

const app = createApp();
app.use(Dialog);
```

## 使用方式

```html
<nut-cell title="基础弹框" @click="baseClick"></nut-cell>
<nut-dialog title="基础弹框" content="这是基础弹框。" v-model:visible="visible1" @cancel="onCancel" @ok="onOk" />

<nut-cell title="无标题弹框" @click="noTitleClick"></nut-cell>
<nut-dialog content="这是无标题弹框。" v-model:visible="visible2" @cancel="onCancel" @ok="onOk" />

<nut-cell title="提示弹框" @click="tipsClick"></nut-cell>
<nut-dialog no-cancel-btn title="温馨提示" content="这是提示弹框。" v-model:visible="visible3" @cancel="onCancel" @ok="onOk" />

<nut-cell title="异步关闭" @click="componentClick"></nut-cell>
<nut-dialog title="异步关闭" :content="closeContent" :visible="visible4" @cancel="onCancel" @ok="onOkAsync" />
```

``` javascript
import { ref } from 'vue';
export default {
  setup() {
    const visible1 = ref(false);
    const visible2 = ref(false);
    const visible3 = ref(false);
    const visible4 = ref(false);
    const closeContent = ref('');
    const sleep = () => new Promise((resolve) => setTimeout(resolve, 1000));
    const countDown = (second: number) => `倒计时 ${second} 秒`;

    const onCancel = () => {
      console.log('event cancel');
    };
    const onOk = () => {
      console.log('event ok');
    };
    const onOkAsync = () => {
      sleep()
        .then(() => {
          closeContent.value = countDown(2);
          return sleep();
        })
        .then(() => {
          closeContent.value = countDown(1);
          return sleep();
        })
        .then(() => {
          closeContent.value = countDown(0);
        })
        .then(() => {
          visible4.value = false;
        });
    };

    const baseClick = (): void => {
      visible1.value = true;
    };
    const noTitleClick = () => {
      visible2.value = true;
    };
    const tipsClick = () => {
      visible3.value = true;
    };

    const componentClick = () => {
      closeContent.value = `点击确定时3s后关闭`;
      visible4.value = true;
    };

    return {
      visible1,
      visible2,
      visible3,
      visible4,
      onCancel,
      onOk,
      closeContent,
      onOkAsync,
      baseClick,
      noTitleClick,
      componentClick,
      tipsClick
    };
  }
};
```


## Props

| 字段                   | 说明                                  | 类型    | 默认值   |
|------------------------|---------------------------------------|---------|----------|
| title                  | 标题                                  | String  | -        |
| content                | 内容，支持HTML                        | String  | -        |
| teleport               | 指定挂载节点                          | String  | "body"   |
| close-on-click-overlay | 点击蒙层是否关闭对话框                | Boolean | false    |
| no-footer              | 是否隐藏底部按钮栏                    | Boolean | false    |
| no-ok-btn              | 是否隐藏确定按钮                      | Boolean | false    |
| no-cancel-btn          | 是否隐藏取消按钮                      | Boolean | false    |
| cancel-text            | 取消按钮文案                          | String  | ”取消“   |
| ok-text                | 确定按钮文案                          | String  | ”确 定“  |
| ok-btn-disabled        | 禁用确定按钮                          | Boolean | false    |
| cancel-auto-close      | 取消按钮是否默认关闭弹窗              | Boolean | true     |
| text-align             | 文字对齐方向，可选值同css的text-align | String  | "center" |
| close-on-popstate      | 是否在页面回退时自动关闭              | Boolean | false    |
| lock-scroll            | 背景是否锁定                          | Boolean | false    |


## Events

| 字段   | 说明                               | 类型     | 默认值 |
|--------|------------------------------------|----------|--------|
| ok     | 确定按钮回调                       | Function | -      |
| cancel | 取消按钮回调                       | Function | -      |
| closed | 关闭回调，任何情况关闭弹窗都会触发 | Function | -      |


## Slots

| 名称    | 说明               |
|---------|--------------------|
| header  | 自定义标题区域     |
| default | 自定义内容         |
| footer  | 自定义底部按钮区域 |