All files / header Header.js

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import React from 'react';
import PropTypes from 'prop-types';
import { Platform, StatusBar, StyleSheet, View } from 'react-native';
 
import { ViewPropTypes, getStatusBarHeight, withTheme } from '../config';
import { renderNode, nodeType } from '../helpers';
 
import Text from '../text/Text';
import Icon from '../icons/Icon';
 
const ALIGN_STYLE = {
  left: 'flex-start',
  right: 'flex-end',
  center: 'center',
};
 
const Children = ({ style, placement, children }) => (
  <View
    style={StyleSheet.flatten([{ alignItems: ALIGN_STYLE[placement] }, style])}
  >
    {children == null || children === false
      ? null
      : children.text
        ? renderNode(Text, children.text, { numberOfLines: 1, ...children })
        : children.icon
          ? renderNode(Icon, {
              ...children,
              name: children.icon,
              containerStyle: StyleSheet.flatten([
                { alignItems: ALIGN_STYLE[placement] },
                children.containerStyle,
              ]),
            })
          : renderNode(Text, children)}
  </View>
);
 
const Header = ({
  statusBarProps,
  leftComponent,
  centerComponent,
  rightComponent,
  leftContainerStyle,
  centerContainerStyle,
  rightContainerStyle,
  backgroundColor,
  containerStyle,
  placement,
  barStyle,
  children = [],
  theme,
  ...attributes
}) => (
  <View
    testID="headerContainer"
    {...attributes}
    style={StyleSheet.flatten([
      styles.container(theme),
      backgroundColor && { backgroundColor },
      containerStyle,
    ])}
  >
    <StatusBar barStyle={barStyle} {...statusBarProps} />
    <Children
      style={StyleSheet.flatten([
        placement === 'center' && styles.rightLeftContainer,
        leftContainerStyle,
      ])}
      placement="left"
    >
      {(React.isValidElement(children) && children) ||
        children[0] ||
        leftComponent}
    </Children>
 
    <Children
      style={StyleSheet.flatten([
        styles.centerContainer,
        placement !== 'center' && {
          paddingHorizontal: Platform.OS === 'ios' ? 15 : 16,
        },
        centerContainerStyle,
      ])}
      placement={placement}
    >
      {children[1] || centerComponent}
    </Children>
 
    <Children
      style={StyleSheet.flatten([
        placement === 'center' && styles.rightLeftContainer,
        rightContainerStyle,
      ])}
      placement="right"
    >
      {children[2] || rightComponent}
    </Children>
  </View>
);
 
Header.propTypes = {
  placement: PropTypes.oneOf(['left', 'center', 'right']),
  leftComponent: nodeType,
  centerComponent: nodeType,
  rightComponent: nodeType,
  leftContainerStyle: ViewPropTypes.style,
  centerContainerStyle: ViewPropTypes.style,
  rightContainerStyle: ViewPropTypes.style,
  backgroundColor: PropTypes.string,
  containerStyle: ViewPropTypes.style,
  statusBarProps: PropTypes.object,
  barStyle: PropTypes.oneOf(['default', 'light-content', 'dark-content']),
  children: PropTypes.oneOfType([
    PropTypes.arrayOf(PropTypes.node),
    PropTypes.node,
  ]),
  theme: PropTypes.object,
};
 
Header.defaultProps = {
  placement: 'center',
};
 
const styles = {
  container: theme => ({
    borderBottomColor: '#f2f2f2',
    borderBottomWidth: StyleSheet.hairlineWidth,
    paddingHorizontal: 10,
    backgroundColor: theme.colors.primary,
    paddingTop: getStatusBarHeight(true),
    flexDirection: 'row',
    justifyContent: 'space-between',
    alignItems: 'center',
    height: (Platform.OS === 'ios' ? 44 : 56) + getStatusBarHeight(true),
  }),
  centerContainer: {
    flex: 3,
  },
  rightLeftContainer: {
    flex: 1,
  },
};
 
export { Header };
export default withTheme(Header, 'Header');