55 lines
1.3 KiB
JavaScript
55 lines
1.3 KiB
JavaScript
/**
|
|
* Copyright (c) 2015-present, Facebook, Inc.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*
|
|
* @providesModule flattenStyle
|
|
* @flow
|
|
* @format
|
|
*/
|
|
'use strict';
|
|
|
|
var ReactNativePropRegistry;
|
|
|
|
import type {DangerouslyImpreciseStyleProp} from 'StyleSheet';
|
|
import type {DangerouslyImpreciseStyle} from 'StyleSheetTypes';
|
|
|
|
function getStyle(style) {
|
|
if (ReactNativePropRegistry === undefined) {
|
|
ReactNativePropRegistry = require('ReactNativePropRegistry');
|
|
}
|
|
if (typeof style === 'number') {
|
|
return ReactNativePropRegistry.getByID(style);
|
|
}
|
|
return style;
|
|
}
|
|
|
|
function flattenStyle(
|
|
style: ?DangerouslyImpreciseStyleProp,
|
|
): ?DangerouslyImpreciseStyle {
|
|
if (style == null) {
|
|
return undefined;
|
|
}
|
|
|
|
if (!Array.isArray(style)) {
|
|
/* $FlowFixMe(>=0.63.0 site=react_native_fb) This comment suppresses an
|
|
* error found when Flow v0.63 was deployed. To see the error delete this
|
|
* comment and run Flow. */
|
|
return getStyle(style);
|
|
}
|
|
|
|
var result = {};
|
|
for (var i = 0, styleLength = style.length; i < styleLength; ++i) {
|
|
var computedStyle = flattenStyle(style[i]);
|
|
if (computedStyle) {
|
|
for (var key in computedStyle) {
|
|
result[key] = computedStyle[key];
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
module.exports = flattenStyle;
|