ant-design/components/select/demo/search-box.md
2016-12-19 17:54:25 +08:00

2.7 KiB

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zh-CN en-US
搜索框 Search Box

zh-CN

带有搜索按钮的自动补全输入框。

en-US

Autocomplete select with search field.

import { Input, Select, Button, Icon } from 'antd';
import jsonp from 'fetch-jsonp';
import querystring from 'querystring';
import classNames from 'classnames';
const Option = Select.Option;

let timeout;
let currentValue;

function fetch(value, callback) {
  if (timeout) {
    clearTimeout(timeout);
    timeout = null;
  }
  currentValue = value;

  function fake() {
    const str = querystring.encode({
      code: 'utf-8',
      q: value,
    });
    jsonp(`https://suggest.taobao.com/sug?${str}`)
      .then(response => response.json())
      .then((d) => {
        if (currentValue === value) {
          const result = d.result;
          const data = [];
          result.forEach((r) => {
            data.push({
              value: r[0],
              text: r[0],
            });
          });
          callback(data);
        }
      });
  }

  timeout = setTimeout(fake, 300);
}

const SearchInput = React.createClass({
  getInitialState() {
    return {
      data: [],
      value: '',
      focus: false,
    };
  },
  handleChange(value) {
    this.setState({ value });
    fetch(value, data => this.setState({ data }));
  },
  handleSubmit() {
    console.log('输入框内容是: ', this.state.value);
  },
  handleFocus() {
    this.setState({ focus: true });
  },
  handleBlur() {
    this.setState({ focus: false });
  },
  render() {
    const btnCls = classNames({
      'ant-search-btn': true,
      'ant-search-btn-noempty': !!this.state.value.trim(),
    });
    const searchCls = classNames({
      'ant-search-input': true,
      'ant-search-input-focus': this.state.focus,
    });
    const options = this.state.data.map(d => <Option key={d.value}>{d.text}</Option>);
    return (
      <div className="ant-search-input-wrapper" style={this.props.style}>
        <Input.Group className={searchCls}>
          <Select
            combobox
            value={this.state.value}
            placeholder={this.props.placeholder}
            notFoundContent=""
            defaultActiveFirstOption={false}
            showArrow={false}
            filterOption={false}
            onChange={this.handleChange}
            onFocus={this.handleFocus}
            onBlur={this.handleBlur}
          >
            {options}
          </Select>
          <div className="ant-input-group-wrap">
            <Button className={btnCls} onClick={this.handleSubmit}>
              <Icon type="search" />
            </Button>
          </div>
        </Input.Group>
      </div>
    );
  },
});

ReactDOM.render(
  <SearchInput placeholder="input search text" style={{ width: 200 }} />
, mountNode);