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joplin/packages/app-mobile/components/buttons/FloatingActionButton.tsx
2024-08-02 14:51:49 +01:00

123 lines
3.7 KiB
TypeScript

const React = require('react');
import { useState, useCallback, useMemo } from 'react';
import { FAB, Portal } from 'react-native-paper';
import { _ } from '@joplin/lib/locale';
import { Dispatch } from 'redux';
import { Platform, useWindowDimensions, View } from 'react-native';
import shim from '@joplin/lib/shim';
import AccessibleWebMenu from '../accessibility/AccessibleModalMenu';
const Icon = require('react-native-vector-icons/Ionicons').default;
// eslint-disable-next-line no-undef -- Don't know why it says React is undefined when it's defined above
type FABGroupProps = React.ComponentProps<typeof FAB.Group>;
type OnButtonPress = ()=> void;
interface ButtonSpec {
icon: string;
label: string;
color?: string;
onPress?: OnButtonPress;
}
interface ActionButtonProps {
buttons?: ButtonSpec[];
// If not given, an "add" button will be used.
mainButton?: ButtonSpec;
dispatch: Dispatch;
}
const defaultOnPress = () => {};
// Returns a render function compatible with React Native Paper.
const getIconRenderFunction = (iconName: string) => {
// eslint-disable-next-line @typescript-eslint/no-explicit-any -- Old code before rule was applied
return (props: any) => <Icon name={iconName} {...props} />;
};
const useIcon = (iconName: string) => {
return useMemo(() => {
return getIconRenderFunction(iconName);
}, [iconName]);
};
const FloatingActionButton = (props: ActionButtonProps) => {
const [open, setOpen] = useState(false);
const onMenuToggled: FABGroupProps['onStateChange'] = useCallback(state => {
props.dispatch({
type: 'SIDE_MENU_CLOSE',
});
setOpen(state.open);
}, [setOpen, props.dispatch]);
const actions = useMemo(() => (props.buttons ?? []).map(button => {
return {
...button,
icon: getIconRenderFunction(button.icon),
onPress: button.onPress ?? defaultOnPress,
};
}), [props.buttons]);
const closedIcon = useIcon(props.mainButton?.icon ?? 'add');
const openIcon = useIcon('close');
// To work around an Android accessibility bug, we decrease the
// size of the container for the FAB. According to the documentation for
// RN Paper, a large action button has size 96x96. As such, we allocate
// a larger than this space for the button.
//
// To prevent the accessibility issue from regressing (which makes it
// very hard to access some UI features), we also enable this when Talkback
// is disabled.
//
// See https://github.com/callstack/react-native-paper/issues/4064
const windowSize = useWindowDimensions();
const adjustMargins = !open && shim.mobilePlatform() === 'android';
const marginTop = adjustMargins ? Math.max(0, windowSize.height - 140) : undefined;
const marginStart = adjustMargins ? Math.max(0, windowSize.width - 200) : undefined;
const label = props.mainButton?.label ?? _('Add new');
// On Web, FAB.Group can't be used at all with accessibility tools. Work around this
// by hiding the FAB for accessibility, and providing a screen-reader-only custom menu.
const isWeb = Platform.OS === 'web';
const accessibleMenu = isWeb ? (
<AccessibleWebMenu
label={label}
onPress={props.mainButton?.onPress}
actions={props.buttons}
/>
) : null;
const menuContent = <FAB.Group
open={open}
accessibilityLabel={label}
style={{ marginStart, marginTop }}
icon={ open ? openIcon : closedIcon }
fabStyle={{
backgroundColor: props.mainButton?.color ?? 'rgba(231,76,60,1)',
}}
onStateChange={onMenuToggled}
actions={actions}
onPress={props.mainButton?.onPress ?? defaultOnPress}
visible={true}
/>;
const mainMenu = isWeb ? (
<View
aria-hidden={true}
pointerEvents='box-none'
tabIndex={-1}
style={{ flex: 1 }}
>{menuContent}</View>
) : menuContent;
return (
<Portal>
{mainMenu}
{accessibleMenu}
</Portal>
);
};
export default FloatingActionButton;