DrawerSidebar.js
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/* @flow */
import * as React from 'react';
import { StyleSheet, View } from 'react-native';
import withCachedChildNavigation from '../../withCachedChildNavigation';
import NavigationActions from '../../NavigationActions';
import invariant from '../../utils/invariant';
import SafeAreaView from '../SafeAreaView';
import type {
NavigationScreenProp,
NavigationRoute,
NavigationRouter,
NavigationDrawerScreenOptions,
NavigationState,
NavigationStateRoute,
ViewStyleProp,
} from '../../TypeDefinition';
import type { DrawerScene, DrawerItem } from './DrawerView';
type Props = {
router: NavigationRouter<NavigationState, NavigationDrawerScreenOptions>,
navigation: NavigationScreenProp<NavigationStateRoute>,
childNavigationProps: {
[key: string]: NavigationScreenProp<NavigationRoute>,
},
contentComponent: ?React.ComponentType<*>,
contentOptions?: {},
screenProps?: {},
style?: ViewStyleProp,
drawerPosition?: 'left' | 'right',
};
/**
* Component that renders the sidebar screen of the drawer.
*/
class DrawerSidebar extends React.PureComponent<Props> {
props: Props;
_getScreenOptions = (routeKey: string) => {
const DrawerScreen = this.props.router.getComponentForRouteName(
'DrawerClose'
);
invariant(
DrawerScreen.router,
'NavigationComponent with routeName DrawerClose should be a Navigator'
);
const { [routeKey]: childNavigation } = this.props.childNavigationProps;
return DrawerScreen.router.getScreenOptions(
childNavigation.state.index !== undefined // if the child screen is a StackRouter then always show the screen options of its first screen (see #1914)
? {
...childNavigation,
state: { ...childNavigation.state, index: 0 },
}
: childNavigation,
this.props.screenProps
);
};
_getLabel = ({ focused, tintColor, route }: DrawerScene) => {
const { drawerLabel, title } = this._getScreenOptions(route.key);
if (drawerLabel) {
return typeof drawerLabel === 'function'
? drawerLabel({ tintColor, focused })
: drawerLabel;
}
if (typeof title === 'string') {
return title;
}
return route.routeName;
};
_renderIcon = ({ focused, tintColor, route }: DrawerScene) => {
const { drawerIcon } = this._getScreenOptions(route.key);
if (drawerIcon) {
return typeof drawerIcon === 'function'
? drawerIcon({ tintColor, focused })
: drawerIcon;
}
return null;
};
_onItemPress = ({ route, focused }: DrawerItem) => {
this.props.navigation.navigate('DrawerClose');
if (!focused) {
let subAction;
// if the child screen is a StackRouter then always navigate to its first screen (see #1914)
if (route.index !== undefined && route.index !== 0) {
route = ((route: any): NavigationStateRoute);
subAction = NavigationActions.navigate({
routeName: route.routes[0].routeName,
});
}
this.props.navigation.navigate(route.routeName, undefined, subAction);
}
};
render() {
const ContentComponent = this.props.contentComponent;
if (!ContentComponent) {
return null;
}
const { state } = this.props.navigation;
invariant(typeof state.index === 'number', 'should be set');
return (
<View style={[styles.container, this.props.style]}>
<ContentComponent
{...this.props.contentOptions}
navigation={this.props.navigation}
items={state.routes}
activeItemKey={
state.routes[state.index] ? state.routes[state.index].key : null
}
screenProps={this.props.screenProps}
getLabel={this._getLabel}
renderIcon={this._renderIcon}
onItemPress={this._onItemPress}
router={this.props.router}
drawerPosition={this.props.drawerPosition}
/>
</View>
);
}
}
export default withCachedChildNavigation(DrawerSidebar);
const styles = StyleSheet.create({
container: {
flex: 1,
},
});