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