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| 1 | +import * as React from "react"; |
| 2 | +import { StyleSheet, Keyboard } from "react-native"; |
| 3 | +import { SafeAreaView } from "react-native-safe-area-context"; |
| 4 | +import { Picker as NativePickerComponent } from "@react-native-picker/picker"; |
| 5 | +import Portal from "../Portal/Portal"; |
| 6 | +import { Button } from "../Button"; |
| 7 | +import { useDeepCompareMemo } from "../../utilities"; |
| 8 | +import { |
| 9 | + CommonPickerProps, |
| 10 | + SinglePickerProps, |
| 11 | + normalizeToPickerOptions, |
| 12 | + PickerOption, |
| 13 | +} from "./PickerCommon"; |
| 14 | +import PickerInputContainer from "./PickerInputContainer"; |
| 15 | +import { withTheme } from "@draftbit/theme"; |
| 16 | +import { IconSlot } from "../../interfaces/Icon"; |
| 17 | + |
| 18 | +/** |
| 19 | + * Duplicated version of NativePicker.tsx for maintaining state inside the Portal container to avoid this issue |
| 20 | + * https://github.com/react-native-picker/picker/issues/615 |
| 21 | + */ |
| 22 | + |
| 23 | +interface PortalPickerContentProps extends IconSlot { |
| 24 | + value: string | number | undefined; |
| 25 | + options: PickerOption[]; |
| 26 | + placeholder?: string; |
| 27 | + onValueChange?: (value: string | number) => void; |
| 28 | + onClose: () => void; |
| 29 | + theme: any; |
| 30 | + autoDismissKeyboard?: boolean; |
| 31 | +} |
| 32 | + |
| 33 | +const PortalPickerContent: React.FC<PortalPickerContentProps> = ({ |
| 34 | + value, |
| 35 | + options, |
| 36 | + placeholder, |
| 37 | + onValueChange, |
| 38 | + onClose, |
| 39 | + Icon, |
| 40 | + theme, |
| 41 | + autoDismissKeyboard = true, |
| 42 | +}) => { |
| 43 | + const pickerRef = React.useRef<NativePickerComponent<string | number>>(null); |
| 44 | + |
| 45 | + // Manage value state inside the Portal to avoid stale state issues across the Portal boundary |
| 46 | + const [internalValue, setInternalValue] = React.useState< |
| 47 | + string | number | undefined |
| 48 | + >(value); |
| 49 | + |
| 50 | + React.useEffect(() => { |
| 51 | + setInternalValue(value); |
| 52 | + }, [value]); |
| 53 | + |
| 54 | + React.useEffect(() => { |
| 55 | + if (autoDismissKeyboard) { |
| 56 | + Keyboard.dismiss(); |
| 57 | + } |
| 58 | + }, [autoDismissKeyboard]); |
| 59 | + |
| 60 | + return ( |
| 61 | + <SafeAreaView style={styles.iosPickerContent}> |
| 62 | + <Button |
| 63 | + Icon={Icon} |
| 64 | + onPress={onClose} |
| 65 | + style={[styles.iosButton, { color: theme.colors.branding.primary }]} |
| 66 | + title="Close" |
| 67 | + /> |
| 68 | + <NativePickerComponent |
| 69 | + ref={pickerRef} |
| 70 | + testID="native-picker-component" |
| 71 | + selectedValue={internalValue} |
| 72 | + onValueChange={(newValue) => { |
| 73 | + setInternalValue(newValue); |
| 74 | + if (newValue !== placeholder) { |
| 75 | + onValueChange?.(newValue); |
| 76 | + } else if (newValue === placeholder) { |
| 77 | + onValueChange?.(""); |
| 78 | + } |
| 79 | + }} |
| 80 | + style={styles.iosNativePicker} |
| 81 | + onBlur={onClose} |
| 82 | + > |
| 83 | + {options.map((option) => ( |
| 84 | + <NativePickerComponent.Item |
| 85 | + testID="native-picker-item" |
| 86 | + label={option.label.toString()} |
| 87 | + value={option.value} |
| 88 | + key={option.value} |
| 89 | + /> |
| 90 | + ))} |
| 91 | + </NativePickerComponent> |
| 92 | + </SafeAreaView> |
| 93 | + ); |
| 94 | +}; |
| 95 | + |
| 96 | +const NativePicker: React.FC<CommonPickerProps & SinglePickerProps> = ({ |
| 97 | + options: optionsProp = [], |
| 98 | + onValueChange, |
| 99 | + Icon, |
| 100 | + placeholder, |
| 101 | + value, |
| 102 | + autoDismissKeyboard = true, |
| 103 | + theme, |
| 104 | + disabled, |
| 105 | + ...rest |
| 106 | +}) => { |
| 107 | + const [pickerVisible, setPickerVisible] = React.useState(false); |
| 108 | + |
| 109 | + const options = useDeepCompareMemo(() => { |
| 110 | + const normalizedOptions = normalizeToPickerOptions(optionsProp); |
| 111 | + |
| 112 | + // Underlying Picker component defaults selection to first element when value is not provided (or undefined) |
| 113 | + // Placholder must be the 1st option in order to allow selection of the 'actual' 1st option |
| 114 | + if (placeholder) { |
| 115 | + return [{ label: placeholder, value: placeholder }, ...normalizedOptions]; |
| 116 | + } else { |
| 117 | + return normalizedOptions; |
| 118 | + } |
| 119 | + }, [placeholder, optionsProp]); |
| 120 | + |
| 121 | + // When no placeholder is provided then first item should be marked selected to reflect underlying Picker internal state |
| 122 | + if (!placeholder && options.length && !value && value !== options[0].value) { |
| 123 | + onValueChange?.(options[0].value); |
| 124 | + } |
| 125 | + |
| 126 | + return ( |
| 127 | + <PickerInputContainer |
| 128 | + testID="native-picker" |
| 129 | + Icon={Icon} |
| 130 | + placeholder={placeholder} |
| 131 | + selectedValue={value} |
| 132 | + options={options} |
| 133 | + onPress={() => setPickerVisible(!pickerVisible)} |
| 134 | + disabled={disabled} |
| 135 | + {...rest} |
| 136 | + > |
| 137 | + {pickerVisible && !disabled && ( |
| 138 | + <Portal> |
| 139 | + <PortalPickerContent |
| 140 | + value={value} |
| 141 | + options={options} |
| 142 | + placeholder={placeholder} |
| 143 | + onValueChange={onValueChange} |
| 144 | + onClose={() => setPickerVisible(false)} |
| 145 | + Icon={Icon} |
| 146 | + theme={theme} |
| 147 | + autoDismissKeyboard={autoDismissKeyboard} |
| 148 | + /> |
| 149 | + </Portal> |
| 150 | + )} |
| 151 | + </PickerInputContainer> |
| 152 | + ); |
| 153 | +}; |
| 154 | + |
| 155 | +const styles = StyleSheet.create({ |
| 156 | + iosNativePicker: { |
| 157 | + backgroundColor: "white", |
| 158 | + }, |
| 159 | + iosPickerContent: { |
| 160 | + width: "100%", |
| 161 | + position: "absolute", |
| 162 | + bottom: 0, |
| 163 | + backgroundColor: "white", |
| 164 | + }, |
| 165 | + iosButton: { |
| 166 | + backgroundColor: "transparent", |
| 167 | + borderWidth: 0, |
| 168 | + }, |
| 169 | +}); |
| 170 | + |
| 171 | +export default withTheme(NativePicker); |
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