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More easily support Select2.full.js #89

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More easily support Select2.full.js #89

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72708af
Rename Select2.js -> shared.js
cooperka Mar 8, 2019
cd69409
Add Select2.js that exports from shared.js
cooperka Mar 8, 2019
9590ba7
Add Select2.full.js that exports from shared.js
cooperka Mar 8, 2019
677e72c
Update guide to document full version
cooperka Mar 8, 2019
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11 changes: 11 additions & 0 deletions guide/README.md
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Expand Up @@ -157,6 +157,17 @@ You can access to select2 as follows
this.refs.tags.el
```

### Full version

Some options are only available with [`Select2.full.js`](https://select2.org/getting-started/builds-and-modules).
To use that version instead:

```js
import Select2 from 'react-select2-wrapper/lib/components/Select2.full';
````

Everything else will be the same as before.

## Themes

Default theme in [css/select2.css](../css/select2.css)
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3 changes: 3 additions & 0 deletions src/components/Select2.full.js
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@@ -0,0 +1,3 @@
import 'select2/dist/js/select2.full';

export default from './shared';
216 changes: 1 addition & 215 deletions src/components/Select2.js
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@@ -1,217 +1,3 @@
import React, { Component } from 'react';
import PropTypes from 'prop-types';
import ReactDOM from 'react-dom';
import shallowEqualFuzzy from 'shallow-equal-fuzzy';
import $ from 'jquery';
import 'select2';

const namespace = 'react-select2-wrapper';

export default class Select2 extends Component {
static propTypes = {
defaultValue: PropTypes.oneOfType([
PropTypes.number,
PropTypes.array,
PropTypes.string,
]),
value: PropTypes.oneOfType([
PropTypes.number,
PropTypes.array,
PropTypes.string,
]),
data: PropTypes.array,
events: PropTypes.array,
options: PropTypes.object,
multiple: PropTypes.bool,
onOpen: PropTypes.func,
onClose: PropTypes.func,
onSelect: PropTypes.func,
onChange: PropTypes.func,
onUnselect: PropTypes.func,
};

static defaultProps = {
data: [],
events: [
[`change.${namespace}`, 'onChange'],
[`select2:open.${namespace}`, 'onOpen'],
[`select2:close.${namespace}`, 'onClose'],
[`select2:select.${namespace}`, 'onSelect'],
[`select2:unselect.${namespace}`, 'onUnselect'],
],
options: {},
multiple: false,
};

constructor(props) {
super(props);
this.el = null;
this.forceUpdateValue = false;
this.initialRender = true;
}

componentDidMount() {
this.initSelect2(this.props);
this.updateValue();
}

componentWillReceiveProps(nextProps) {
this.initialRender = false;
this.updSelect2(nextProps);
}

componentDidUpdate() {
this.updateValue();
}

componentWillUnmount() {
this.destroySelect2();
}

initSelect2(props) {
const { options } = props;

this.el = $(ReactDOM.findDOMNode(this));
// fix for updating selected value when data is changing
if (this.forceUpdateValue) {
this.updateSelect2Value(null);
}
this.el.select2(this.prepareOptions(options));
this.attachEventHandlers(props);
}

updSelect2(props) {
const prevProps = this.props;

if (!shallowEqualFuzzy(prevProps.data, props.data)) {
this.forceUpdateValue = true;
this.destroySelect2(false);
this.initSelect2(props);
return;
}

const { options } = props;
if (!shallowEqualFuzzy(prevProps.options, options)) {
this.el.select2(this.prepareOptions(options));
}

const handlerChanged = e => prevProps[e[1]] !== props[e[1]];
if (props.events.some(handlerChanged)) {
this.detachEventHandlers();
this.attachEventHandlers(props);
}
}

updateSelect2Value(value) {
this.el.off(`change.${namespace}`).val(value).trigger('change');

const onChange = this.props.onChange;
if (onChange) {
this.el.on(`change.${namespace}`, onChange);
}
}

updateValue() {
const { value, defaultValue, multiple } = this.props;
const newValue = this.prepareValue(value, defaultValue);
const currentValue = multiple ? this.el.val() || [] : this.el.val();

if (!this.fuzzyValuesEqual(currentValue, newValue) || this.forceUpdateValue) {
this.updateSelect2Value(newValue);
if (!this.initialRender) {
this.el.trigger('change');
}
this.forceUpdateValue = false;
}
}

fuzzyValuesEqual(currentValue, newValue) {
return (currentValue === null && newValue === '') ||
shallowEqualFuzzy(currentValue, newValue);
}

destroySelect2(withCallbacks = true) {
if (withCallbacks) {
this.detachEventHandlers();
}

this.el.select2('destroy');
this.el = null;
}

attachEventHandlers(props) {
props.events.forEach(event => {
if (typeof props[event[1]] !== 'undefined') {
this.el.on(event[0], props[event[1]]);
}
});
}

detachEventHandlers() {
this.props.events.forEach(event => {
if (typeof this.props[event[1]] !== 'undefined') {
this.el.off(event[0]);
}
});
}

prepareValue(value, defaultValue) {
const issetValue = typeof value !== 'undefined' && value !== null;
const issetDefaultValue = typeof defaultValue !== 'undefined';

if (!issetValue && issetDefaultValue) {
return defaultValue;
}
return value;
}

prepareOptions(options) {
const opt = options;
if (typeof opt.dropdownParent === 'string') {
opt.dropdownParent = $(opt.dropdownParent);
}
return opt;
}

isObject(value) {
const type = typeof value;
return type === 'function' || (value && type === 'object') || false;
}

makeOption(item) {
if (this.isObject(item)) {
const { id, text, ...itemParams } = item;
return (<option key={`option-${id}`} value={id} {...itemParams}>{text}</option>);
}

return (<option key={`option-${item}`} value={item}>{item}</option>);
}

render() {
const { data, value, ...props } = this.props;

delete props.options;
delete props.events;
delete props.onOpen;
delete props.onClose;
delete props.onSelect;
delete props.onChange;
delete props.onUnselect;

return (
<select {...props}>
{data.map((item, k) => {
if (this.isObject(item) && this.isObject(item.children)) {
const { children, text, ...itemParams } = item;
return (
<optgroup key={`optgroup-${k}`} label={text} {...itemParams}>
{children.map((child) => this.makeOption(child))}
</optgroup>
);
}
return this.makeOption(item);
})}
</select>
);
}
}
export default from './shared';
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