React-Select

提供八仙塵暴名單搜尋服務 Live demo: paristsai.github.io/react-select

這個專案 Fork 了 React-Select，並且為 Select 這個 Component 新增即時呈現出結果的功能。另外demo頁面是使用 gulp-gh-pages deploy。

以下為原專案內容

A Select control built with and for React. Initially built for use in KeystoneJS.

Demo & Examples

Live demo: jedwatson.github.io/react-select

To build the examples locally, run:

npm install
gulp dev

Then open localhost:8000 in a browser.

Project Status

This project is quite stable and ready for production use, however there are plans to improve it including:

CSS Styles and theme support (working, could be improved)
Documentation website (currently just examples)
Custom options rendering

It's loosely based on Selectize (in terms of behaviour and user experience) and React-Autocomplete (as a native React Combobox implemenation), as well as other select controls including Chosen and Select2.

Installation

The easiest way to use React-Select is to install it from NPM and include it in your own React build process (using Browserify, etc).

npm install react-select --save

You can also use the standalone build by including dist/select.js and dist/default.css in your page. If you use this, make sure you have already included the following dependencies:

Usage

React-Select generates a hidden text field containing the selected value, so you can submit it as part of a standard form. You can also listen for changes with the onChange event property.

Options should be provided as an Array of Objects, each with a value and label property for rendering and searching.

When the value is changed, onChange(newValue, [selectedOptions]) will fire.

var Select = require('react-select');

var options = [
	{ value: 'one', label: 'One' },
	{ value: 'two', label: 'Two' }
];

function logChange(val) {
	console.log("Selected: " + val);
}

<Select
	name="form-field-name"
	value="one"
	options={options}
	onChange={logChange}
/>

Multiselect options

You can enable multi-value selection by setting multi={true}. In this mode:

Selected options will be removed from the dropdown menu
The values of the selected items are joined using the delimiter property to create the input value
A simple value, if provided, will be split using the delimiter property
The onChange event provides an array of the selected options as the second argument

Async options

If you want to load options asynchronously, instead of providing an options Array, provide a asyncOptions Function.

The function takes two arguments String input, Function callbackand will be called when the input text is changed.

When your async process finishes getting the options, pass them to callback(err, data) in a Object { options: [] }.

The select control will intelligently cache options for input strings that have already been fetched. Async options will still be filtered like the normal options array, so if your async process would only return a smaller set of results for a more specific query, also pass complete: true in the callback object.

Unless you specify the property autoload={false} the control will automatically load the default set of options (i.e. for input: '') when it is mounted.

var Select = require('react-select');

var getOptions = function(input, callback) {
	setTimeout(function() {
		callback(null, {
			options: [
				{ value: 'one', label: 'One' },
				{ value: 'two', label: 'Two' }
			],
			// CAREFUL! Only set this to true when there are no more options,
			// or more specific queries will not be sent to the server.
			complete: true
		});
	}, 500);
};

<Select
	name="form-field-name"
	value="one"
	asyncOptions={getOptions}
/>

Filtering options

You can control how options are filtered with the following properties:

matchPos: "start" or "any": whether to match the text entered at the start or any position in the option value
matchProp: "label", "value" or "any": whether to match the value, label or both values of each option when filtering
ignoreCase: Boolean: whether to ignore case or match the text exactly when filtering

matchProp and matchPos both default to "any". ignoreCase defaults to true.

Advanced filters

You can also completely replace the method used to filter either a single option, or the entire options array (allowing custom sort mechanisms, etc.)

filterOption: function(Object option, String filter) returns Boolean. Will override matchPos, matchProp and ignoreCase options.
filterOptions: function(Array options, String filter, Array currentValues) returns Array filteredOptions. Will override filterOption, matchPos, matchProp and ignoreCase options.

For multi-select inputs, when providing a custom filterOptions method, remember to exclude current values from the returned array of options.

Further options

Property			|	Type		|	Description

:-----------------------|:--------------|:-------------------------------- value | any | initial field value multi | bool | multi-value input disabled | bool | whether the Select is disabled or not options | array | array of options delimiter | string | delimiter to use to join multiple values asyncOptions | func | function to call to get options autoload | bool | whether to auto-load the default async options set placeholder | string | field placeholder, displayed when there's no value noResultsText | string | placeholder displayed when there are no matching search results clearable | bool | should it be possible to reset value clearValueText | string | title for the "clear" control clearAllText | string | title for the "clear" control when multi: true searchable | bool | whether to enable searching feature or not searchPromptText | string | label to prompt for search input name | string | field name, for hidden tag onChange | func | onChange handler: function(newValue) {} onFocus | func | onFocus handler: function(event) {} onBlur | func | onBlur handler: function(event) {} className | string | className for the outer element filterOption | func | method to filter a single option: function(option, filterString) filterOptions | func | method to filter the options array: function([options], filterString, [values]) matchPos | string | (any, start) match the start or entire string when filtering matchProp | string | (any, label, value) which option property to filter on ignoreCase | bool | whether to perform case-insensitive filtering inputProps | object | custom attributes for the Input (in the Select-control) e.g: {'data-foo': 'bar'}

Contributing

See our CONTRIBUTING.md for information on how to contribute.

paristsai/react-select