GT2/GT2-Android/node_modules/react-native/Libraries/Components/View/View.js

102 lines
3.3 KiB
JavaScript

/**
* Copyright (c) 2015-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 View
* @flow
*/
'use strict';
const NativeMethodsMixin = require('NativeMethodsMixin');
const Platform = require('Platform');
const PropTypes = require('prop-types');
const React = require('React');
const ReactNativeStyleAttributes = require('ReactNativeStyleAttributes');
const ReactNativeViewAttributes = require('ReactNativeViewAttributes');
const ViewPropTypes = require('ViewPropTypes');
const createReactClass = require('create-react-class');
const invariant = require('fbjs/lib/invariant');
const requireNativeComponent = require('requireNativeComponent');
import type {ViewProps} from 'ViewPropTypes';
export type Props = ViewProps;
/**
* The most fundamental component for building a UI.
*
* See http://facebook.github.io/react-native/docs/view.html
*/
const View = createReactClass({
displayName: 'View',
// TODO: We should probably expose the mixins, viewConfig, and statics publicly. For example,
// one of the props is of type AccessibilityComponentType. That is defined as a const[] above,
// but it is not rendered by the docs, since `statics` below is not rendered. So its Possible
// values had to be hardcoded.
mixins: [NativeMethodsMixin],
// `propTypes` should not be accessed directly on View since this wrapper only
// exists for DEV mode. However it's important for them to be declared.
// If the object passed to `createClass` specifies `propTypes`, Flow will
// create a static type from it.
propTypes: ViewPropTypes,
/**
* `NativeMethodsMixin` will look for this when invoking `setNativeProps`. We
* make `this` look like an actual native component class.
*/
viewConfig: {
uiViewClassName: 'RCTView',
validAttributes: ReactNativeViewAttributes.RCTView
},
contextTypes: {
isInAParentText: PropTypes.bool,
},
render: function() {
invariant(
!(this.context.isInAParentText && Platform.OS === 'android'),
'Nesting of <View> within <Text> is not supported on Android.');
// WARNING: This method will not be used in production mode as in that mode we
// replace wrapper component View with generated native wrapper RCTView. Avoid
// adding functionality this component that you'd want to be available in both
// dev and prod modes.
return <RCTView {...this.props} />;
},
});
const RCTView = requireNativeComponent('RCTView', View, {
nativeOnly: {
nativeBackgroundAndroid: true,
nativeForegroundAndroid: true,
}
});
if (__DEV__) {
const UIManager = require('UIManager');
const viewConfig = UIManager.viewConfigs && UIManager.viewConfigs.RCTView || {};
for (const prop in viewConfig.nativeProps) {
const viewAny: any = View; // Appease flow
if (!viewAny.propTypes[prop] && !ReactNativeStyleAttributes[prop]) {
throw new Error(
'View is missing propType for native prop `' + prop + '`'
);
}
}
}
let ViewToExport = RCTView;
if (__DEV__) {
ViewToExport = View;
}
// No one should depend on the DEV-mode createClass View wrapper.
module.exports = ((ViewToExport : any) : typeof RCTView);