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Dispatch's awesome components and style guide
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JavaScript
/**
* 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.
*
* @providesModule ReactDOMInput
*/
;
var _prodInvariant = require('./reactProdInvariant'),
_assign = require('object-assign');
var DisabledInputUtils = require('./DisabledInputUtils');
var DOMPropertyOperations = require('./DOMPropertyOperations');
var LinkedValueUtils = require('./LinkedValueUtils');
var ReactDOMComponentTree = require('./ReactDOMComponentTree');
var ReactUpdates = require('./ReactUpdates');
var invariant = require('fbjs/lib/invariant');
var warning = require('fbjs/lib/warning');
var didWarnValueLink = false;
var didWarnCheckedLink = false;
var didWarnValueDefaultValue = false;
var didWarnCheckedDefaultChecked = false;
var didWarnControlledToUncontrolled = false;
var didWarnUncontrolledToControlled = false;
function forceUpdateIfMounted() {
if (this._rootNodeID) {
// DOM component is still mounted; update
ReactDOMInput.updateWrapper(this);
}
}
function isControlled(props) {
var usesChecked = props.type === 'checkbox' || props.type === 'radio';
return usesChecked ? props.checked !== undefined : props.value !== undefined;
}
/**
* Implements an <input> host component that allows setting these optional
* props: `checked`, `value`, `defaultChecked`, and `defaultValue`.
*
* If `checked` or `value` are not supplied (or null/undefined), user actions
* that affect the checked state or value will trigger updates to the element.
*
* If they are supplied (and not null/undefined), the rendered element will not
* trigger updates to the element. Instead, the props must change in order for
* the rendered element to be updated.
*
* The rendered element will be initialized as unchecked (or `defaultChecked`)
* with an empty value (or `defaultValue`).
*
* @see http://www.w3.org/TR/2012/WD-html5-20121025/the-input-element.html
*/
var ReactDOMInput = {
getHostProps: function (inst, props) {
var value = LinkedValueUtils.getValue(props);
var checked = LinkedValueUtils.getChecked(props);
var hostProps = _assign({
// Make sure we set .type before any other properties (setting .value
// before .type means .value is lost in IE11 and below)
type: undefined
}, DisabledInputUtils.getHostProps(inst, props), {
defaultChecked: undefined,
defaultValue: undefined,
value: value != null ? value : inst._wrapperState.initialValue,
checked: checked != null ? checked : inst._wrapperState.initialChecked,
onChange: inst._wrapperState.onChange
});
return hostProps;
},
mountWrapper: function (inst, props) {
if (process.env.NODE_ENV !== 'production') {
LinkedValueUtils.checkPropTypes('input', props, inst._currentElement._owner);
var owner = inst._currentElement._owner;
if (props.valueLink !== undefined && !didWarnValueLink) {
process.env.NODE_ENV !== 'production' ? warning(false, '`valueLink` prop on `input` is deprecated; set `value` and `onChange` instead.') : void 0;
didWarnValueLink = true;
}
if (props.checkedLink !== undefined && !didWarnCheckedLink) {
process.env.NODE_ENV !== 'production' ? warning(false, '`checkedLink` prop on `input` is deprecated; set `value` and `onChange` instead.') : void 0;
didWarnCheckedLink = true;
}
if (props.checked !== undefined && props.defaultChecked !== undefined && !didWarnCheckedDefaultChecked) {
process.env.NODE_ENV !== 'production' ? warning(false, '%s contains an input of type %s with both checked and defaultChecked props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the checked prop, or the defaultChecked prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', owner && owner.getName() || 'A component', props.type) : void 0;
didWarnCheckedDefaultChecked = true;
}
if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue) {
process.env.NODE_ENV !== 'production' ? warning(false, '%s contains an input of type %s with both value and defaultValue props. ' + 'Input 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 input ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', owner && owner.getName() || 'A component', props.type) : void 0;
didWarnValueDefaultValue = true;
}
}
var defaultValue = props.defaultValue;
inst._wrapperState = {
initialChecked: props.checked != null ? props.checked : props.defaultChecked,
initialValue: props.value != null ? props.value : defaultValue,
listeners: null,
onChange: _handleChange.bind(inst)
};
if (process.env.NODE_ENV !== 'production') {
inst._wrapperState.controlled = isControlled(props);
}
},
updateWrapper: function (inst) {
var props = inst._currentElement.props;
if (process.env.NODE_ENV !== 'production') {
var controlled = isControlled(props);
var owner = inst._currentElement._owner;
if (!inst._wrapperState.controlled && controlled && !didWarnUncontrolledToControlled) {
process.env.NODE_ENV !== 'production' ? warning(false, '%s is changing an uncontrolled input of type %s to be controlled. ' + 'Input elements should not switch from uncontrolled to controlled (or vice versa). ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://fb.me/react-controlled-components', owner && owner.getName() || 'A component', props.type) : void 0;
didWarnUncontrolledToControlled = true;
}
if (inst._wrapperState.controlled && !controlled && !didWarnControlledToUncontrolled) {
process.env.NODE_ENV !== 'production' ? warning(false, '%s is changing a controlled input of type %s to be uncontrolled. ' + 'Input elements should not switch from controlled to uncontrolled (or vice versa). ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://fb.me/react-controlled-components', owner && owner.getName() || 'A component', props.type) : void 0;
didWarnControlledToUncontrolled = true;
}
}
// TODO: Shouldn't this be getChecked(props)?
var checked = props.checked;
if (checked != null) {
DOMPropertyOperations.setValueForProperty(ReactDOMComponentTree.getNodeFromInstance(inst), 'checked', checked || false);
}
var node = ReactDOMComponentTree.getNodeFromInstance(inst);
var value = LinkedValueUtils.getValue(props);
if (value != null) {
// Cast `value` to a string to ensure the value is set correctly. While
// browsers typically do this as necessary, jsdom doesn't.
var newValue = '' + value;
// To avoid side effects (such as losing text selection), only set value if changed
if (newValue !== node.value) {
node.value = newValue;
}
} else {
if (props.value == null && props.defaultValue != null) {
node.defaultValue = '' + props.defaultValue;
}
if (props.checked == null && props.defaultChecked != null) {
node.defaultChecked = !!props.defaultChecked;
}
}
},
postMountWrapper: function (inst) {
var props = inst._currentElement.props;
// This is in postMount because we need access to the DOM node, which is not
// available until after the component has mounted.
var node = ReactDOMComponentTree.getNodeFromInstance(inst);
// Detach value from defaultValue. We won't do anything if we're working on
// submit or reset inputs as those values & defaultValues are linked. They
// are not resetable nodes so this operation doesn't matter and actually
// removes browser-default values (eg "Submit Query") when no value is
// provided.
if (props.type !== 'submit' && props.type !== 'reset') {
node.value = node.value;
}
// Normally, we'd just do `node.checked = node.checked` upon initial mount, less this bug
// this is needed to work around a chrome bug where setting defaultChecked
// will sometimes influence the value of checked (even after detachment).
// Reference: https://bugs.chromium.org/p/chromium/issues/detail?id=608416
// We need to temporarily unset name to avoid disrupting radio button groups.
var name = node.name;
if (name !== '') {
node.name = '';
}
node.defaultChecked = !node.defaultChecked;
node.defaultChecked = !node.defaultChecked;
if (name !== '') {
node.name = name;
}
}
};
function _handleChange(event) {
var props = this._currentElement.props;
var returnValue = LinkedValueUtils.executeOnChange(props, event);
// Here we use asap to wait until all updates have propagated, which
// is important when using controlled components within layers:
// https://github.com/facebook/react/issues/1698
ReactUpdates.asap(forceUpdateIfMounted, this);
var name = props.name;
if (props.type === 'radio' && name != null) {
var rootNode = ReactDOMComponentTree.getNodeFromInstance(this);
var queryRoot = rootNode;
while (queryRoot.parentNode) {
queryRoot = queryRoot.parentNode;
}
// If `rootNode.form` was non-null, then we could try `form.elements`,
// but that sometimes behaves strangely in IE8. We could also try using
// `form.getElementsByName`, but that will only return direct children
// and won't include inputs that use the HTML5 `form=` attribute. Since
// the input might not even be in a form, let's just use the global
// `querySelectorAll` to ensure we don't miss anything.
var group = queryRoot.querySelectorAll('input[name=' + JSON.stringify('' + name) + '][type="radio"]');
for (var i = 0; i < group.length; i++) {
var otherNode = group[i];
if (otherNode === rootNode || otherNode.form !== rootNode.form) {
continue;
}
// This will throw if radio buttons rendered by different copies of React
// and the same name are rendered into the same form (same as #1939).
// That's probably okay; we don't support it just as we don't support
// mixing React radio buttons with non-React ones.
var otherInstance = ReactDOMComponentTree.getInstanceFromNode(otherNode);
!otherInstance ? process.env.NODE_ENV !== 'production' ? invariant(false, 'ReactDOMInput: Mixing React and non-React radio inputs with the same `name` is not supported.') : _prodInvariant('90') : void 0;
// If this is a controlled radio button group, forcing the input that
// was previously checked to update will cause it to be come re-checked
// as appropriate.
ReactUpdates.asap(forceUpdateIfMounted, otherInstance);
}
}
return returnValue;
}
module.exports = ReactDOMInput;