问题描述
我遇到了一个非常奇怪的问题,我无法解决问题.我目前正在使用带有react 16.3和Antd 3.11框架的create-react-app,并且已经创建了一个表,该表的标题列中呈现了一个附加了onChange事件的组件.
I have come across a very strange issue that I can't wrap my head around.I'm currently working with an create-react-app using react 16.3 and Antd 3.11 framework and I have created a table which inside it's header column renders a component with an onChange event attached.
当我第一次关注输入时,问题就来了.
The issue comes when I focus the input for the first time.
我失去了对第一个关键事件的关注,然后再次单击该字段时,它将一直保持焦点,直到我单击其他内容为止.
I lose focus on first key event, and afterwards when I click the field again, it remains focused until I click something else.
这是我一直在使用的示例: https://ant.design/components/table/
Here is the example I have been using:https://ant.design/components/table/
及其后的代码.
import {
Table, Input, Button, Icon,
} from 'antd';
const data = [{
key: '1',
name: 'John Brown',
age: 32,
address: 'New York No. 1 Lake Park',
}, {
key: '2',
name: 'Joe Black',
age: 42,
address: 'London No. 1 Lake Park',
}, {
key: '3',
name: 'Jim Green',
age: 32,
address: 'Sidney No. 1 Lake Park',
}, {
key: '4',
name: 'Jim Red',
age: 32,
address: 'London No. 2 Lake Park',
}];
class App extends React.Component {
state = {
searchText: '',
};
handleSearch = (selectedKeys, confirm) => () => {
confirm();
this.setState({ searchText: selectedKeys[0] });
}
handleReset = clearFilters => () => {
clearFilters();
this.setState({ searchText: '' });
}
render() {
const columns = [{
title: 'Name',
dataIndex: 'name',
key: 'name',
filterDropdown: ({
setSelectedKeys, selectedKeys, confirm, clearFilters,
}) => (
<div className="custom-filter-dropdown">
<Input
ref={ele => this.searchInput = ele}
placeholder="Search name"
value={selectedKeys[0]}
onChange={e => setSelectedKeys(e.target.value ? [e.target.value] : [])}
onPressEnter={this.handleSearch(selectedKeys, confirm)}
/>
<Button type="primary" onClick={this.handleSearch(selectedKeys, confirm)}>Search</Button>
<Button onClick={this.handleReset(clearFilters)}>Reset</Button>
</div>
),
filterIcon: filtered => <Icon type="smile-o" style={{ color: filtered ? '#108ee9' : '#aaa' }} />,
onFilter: (value, record) => record.name.toLowerCase().includes(value.toLowerCase()),
onFilterDropdownVisibleChange: (visible) => {
if (visible) {
setTimeout(() => {
this.searchInput.focus();
});
}
},
render: (text) => {
const { searchText } = this.state;
return searchText ? (
<span>
{text.split(new RegExp(`(${searchText})`, 'gi')).map((fragment, i) => (
fragment.toLowerCase() === searchText.toLowerCase()
? <span key={i} className="highlight">{fragment}</span> : fragment // eslint-disable-line
))}
</span>
) : text;
},
}, {
title: 'Age',
dataIndex: 'age',
key: 'age',
}, {
title: 'Address',
dataIndex: 'address',
key: 'address',
filters: [{
text: 'London',
value: 'London',
}, {
text: 'New York',
value: 'New York',
}],
onFilter: (value, record) => record.address.indexOf(value) === 0,
}];
return <Table columns={columns} dataSource={data} />;
}
}
ReactDOM.render(<App />, mountNode);
以及随之而来的css:
And the css that follows to that:
.custom-filter-dropdown {
padding: 8px;
border-radius: 6px;
background: #fff;
box-shadow: 0 1px 6px rgba(0, 0, 0, .2);
}
.custom-filter-dropdown input {
width: 130px;
margin-right: 8px;
}
.custom-filter-dropdown button {
margin-right: 8px;
}
.highlight {
color: #f50;
}
快速总结一下我已经了解的内容.
To quickly sum up things i've come to understand.
- 该表将在每个位置上释放filterDropDown属性,filterIcon击键.
- 表所在的类组件不会重新呈现或触发器(componentDidUpdate)
- 这在Chrome,FireFox,Edge中完美运行,示例在ants网站上的IE11.但是不在我的应用程序中.
- 在我自己的组件中呈现的所有antd字段和常规字段在任何浏览器中都没有此问题.
- 在渲染功能之外渲染输入组件不会之所以有效,是因为不是由我的组件来提供它,而是由表组件触发了它自己的更新事件
- 我还尝试将-ms-user-select:设置更改为不同的属性,以查看天气是否有效.事实上,这只会使情况变得更糟.
- 我尝试将输入值设置为状态值以使其成为受控组件,但是当componentDidUpdate触发并且以编程方式在我的输入上设置.focus时,它将设置caretIndex lenght-1而不是在文本后面.(我手动尝试覆盖selectionStart和SelectionEnd,但是没有成功
我有点精疲力尽,因为我了解到的是其他一些组件正在窃取我的输入框的焦点,但是即使我已经使用过,我也无法找到该元素我能想到的几乎所有方法和生命周期事件中的document.activeElement.所有事件都指向具有焦点的"a"输入字段(不确定是创建的是旧的还是新的,但是我认为这是旧的).
I'm sort of running out of ideas since what I have come to understand is that some other component is stealing the focus of my input box, however I have not been able to find the element even though I've useddocument.activeElement in almost every method and lifecycle event I could think of. All events point to the 'a' Input field having focus (not sure if this is the old or new one created, however I think it's the old one).
我尽力解释了我的情况,希望世界上有人遇到类似的问题.
I have tried my best to explain my scenario and I hope someone out there in the world has come across a similar issue.
更新:antd合理地更改了其表组件,因此该示例在网页上有所不同,但是问题仍然相同.
UPDATE:antd reasonly changed their table component so the example is a bit different on the webpage, however issue still remains the same.
推荐答案
我在IE11上也有相同的行为.
I hade the same behavior on IE11.
可以通过在Input字段上附加onBlur来解决此问题,只需将焦点设置为currentTarget.
Could fix it with an additional onBlur on the Input field, that just set the focus to the currentTarget.
onBlurHandler = (e: React.FocusEvent<HTMLInputElement>) => {
e.currentTarget.focus();
};
这篇关于React-Internet Explorer 11的输入在首次onchange之后失去焦点的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!