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/**
* Copyright 2013-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
*/
'use strict';
var _assign = require('object-assign');
var LinkedValueUtils = require('./LinkedValueUtils');
var ReactDOMComponentTree = require('./ReactDOMComponentTree');
var ReactUpdates = require('./ReactUpdates');
var warning = require('fbjs/lib/warning');
var didWarnValueLink = false;
var didWarnValueDefaultValue = false;
function updateOptionsIfPendingUpdateAndMounted() {
if (this._rootNodeID && this._wrapperState.pendingUpdate) {
this._wrapperState.pendingUpdate = false;
var props = this._currentElement.props;
var value = LinkedValueUtils.getValue(props);
if (value != null) {
updateOptions(this, Boolean(props.multiple), value);
}
}
}
function getDeclarationErrorAddendum(owner) {
if (owner) {
var name = owner.getName();
if (name) {
return ' Check the render method of `' + name + '`.';
}
}
return '';
}
var valuePropNames = ['value', 'defaultValue'];
/**
* Validation function for `value` and `defaultValue`.
* @private
*/
function checkSelectPropTypes(inst, props) {
var owner = inst._currentElement._owner;
LinkedValueUtils.checkPropTypes('select', props, owner);
if (props.valueLink !== undefined && !didWarnValueLink) {
process.env.NODE_ENV !== 'production' ? warning(false, '`valueLink` prop on `select` is deprecated; set `value` and `onChange` instead.') : void 0;
didWarnValueLink = true;
}
for (var i = 0; i < valuePropNames.length; i++) {
var propName = valuePropNames[i];
if (props[propName] == null) {
continue;
}
var isArray = Array.isArray(props[propName]);
if (props.multiple && !isArray) {
process.env.NODE_ENV !== 'production' ? warning(false, 'The `%s` prop supplied to <select> must be an array if ' + '`multiple` is true.%s', propName, getDeclarationErrorAddendum(owner)) : void 0;
} else if (!props.multiple && isArray) {
process.env.NODE_ENV !== 'production' ? warning(false, 'The `%s` prop supplied to <select> must be a scalar ' + 'value if `multiple` is false.%s', propName, getDeclarationErrorAddendum(owner)) : void 0;
}
}
}
/**
* @param {ReactDOMComponent} inst
* @param {boolean} multiple
* @param {*} propValue A stringable (with `multiple`, a list of stringables).
* @private
*/
function updateOptions(inst, multiple, propValue) {
var selectedValue, i;
var options = ReactDOMComponentTree.getNodeFromInstance(inst).options;
if (multiple) {
selectedValue = {};
for (i = 0; i < propValue.length; i++) {
selectedValue['' + propValue[i]] = true;
}
for (i = 0; i < options.length; i++) {
var selected = selectedValue.hasOwnProperty(options[i].value);
if (options[i].selected !== selected) {
options[i].selected = selected;
}
}
} else {
// Do not set `select.value` as exact behavior isn't consistent across all
// browsers for all cases.
selectedValue = '' + propValue;
for (i = 0; i < options.length; i++) {
if (options[i].value === selectedValue) {
options[i].selected = true;
return;
}
}
if (options.length) {
options[0].selected = true;
}
}
}
/**
* Implements a <select> host component that allows optionally setting the
* props `value` and `defaultValue`. If `multiple` is false, the prop must be a
* stringable. If `multiple` is true, the prop must be an array of stringables.
*
* If `value` is not supplied (or null/undefined), user actions that change the
* selected option will trigger updates to the rendered options.
*
* If it is supplied (and not null/undefined), the rendered options will not
* update in response to user actions. Instead, the `value` prop must change in
* order for the rendered options to update.
*
* If `defaultValue` is provided, any options with the supplied values will be
* selected.
*/
var ReactDOMSelect = {
getHostProps: function (inst, props) {
return _assign({}, props, {
onChange: inst._wrapperState.onChange,
value: undefined
});
},
mountWrapper: function (inst, props) {
if (process.env.NODE_ENV !== 'production') {
checkSelectPropTypes(inst, props);
}
var value = LinkedValueUtils.getValue(props);
inst._wrapperState = {
pendingUpdate: false,
initialValue: value != null ? value : props.defaultValue,
listeners: null,
onChange: _handleChange.bind(inst),
wasMultiple: Boolean(props.multiple)
};
if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue) {
process.env.NODE_ENV !== 'production' ? warning(false, 'Select elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled select ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components') : void 0;
didWarnValueDefaultValue = true;
}
},
getSelectValueContext: function (inst) {
// ReactDOMOption looks at this initial value so the initial generated
// markup has correct `selected` attributes
return inst._wrapperState.initialValue;
},
postUpdateWrapper: function (inst) {
var props = inst._currentElement.props;
// After the initial mount, we control selected-ness manually so don't pass
// this value down
inst._wrapperState.initialValue = undefined;
var wasMultiple = inst._wrapperState.wasMultiple;
inst._wrapperState.wasMultiple = Boolean(props.multiple);
var value = LinkedValueUtils.getValue(props);
if (value != null) {
inst._wrapperState.pendingUpdate = false;
updateOptions(inst, Boolean(props.multiple), value);
} else if (wasMultiple !== Boolean(props.multiple)) {
// For simplicity, reapply `defaultValue` if `multiple` is toggled.
if (props.defaultValue != null) {
updateOptions(inst, Boolean(props.multiple), props.defaultValue);
} else {
// Revert the select back to its default unselected state.
updateOptions(inst, Boolean(props.multiple), props.multiple ? [] : '');
}
}
}
};
function _handleChange(event) {
var props = this._currentElement.props;
var returnValue = LinkedValueUtils.executeOnChange(props, event);
if (this._rootNodeID) {
this._wrapperState.pendingUpdate = true;
}
ReactUpdates.asap(updateOptionsIfPendingUpdateAndMounted, this);
return returnValue;
}
module.exports = ReactDOMSelect;
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