From 5f4611d65e40eae3ca6191a15f68d69ea5a1c4cb Mon Sep 17 00:00:00 2001
From: Kirill Rogovoy <kirill@rogovoy.me>
Date: Tue, 20 Jul 2021 21:24:52 +0300
Subject: WIP

---
 .../components/text-field/text-field.story.tsx     | 159 +++++++++++++++++++++
 app_expo/components/text-field/text-field.tsx      |  98 +++++++++++++
 2 files changed, 257 insertions(+)
 create mode 100644 app_expo/components/text-field/text-field.story.tsx
 create mode 100644 app_expo/components/text-field/text-field.tsx

(limited to 'app_expo/components/text-field')

diff --git a/app_expo/components/text-field/text-field.story.tsx b/app_expo/components/text-field/text-field.story.tsx
new file mode 100644
index 0000000..5f4d408
--- /dev/null
+++ b/app_expo/components/text-field/text-field.story.tsx
@@ -0,0 +1,159 @@
+/* eslint-disable react-native/no-inline-styles */
+/* eslint-disable react-native/no-color-literals */
+
+import * as React from 'react'
+import { storiesOf } from '@storybook/react-native'
+import { StoryScreen, Story, UseCase } from '../../../storybook/views'
+import { Text, TextField } from '../'
+import { State } from 'react-powerplug'
+import { ViewStyle, TextStyle, Alert } from 'react-native'
+
+declare let module
+
+const styleArray: ViewStyle[] = [{ paddingHorizontal: 30 }, { borderWidth: 30 }]
+
+const inputStyleArray: TextStyle[] = [
+  {
+    backgroundColor: 'rebeccapurple',
+    color: 'white',
+    padding: 40,
+  },
+  {
+    borderWidth: 10,
+    borderRadius: 4,
+    borderColor: '#7fff00',
+  },
+]
+let alertWhenFocused = true
+
+storiesOf('TextField', module)
+  .addDecorator((fn) => <StoryScreen>{fn()}</StoryScreen>)
+  .add('Labelling', () => (
+    <Story>
+      <UseCase text="Normal text" usage="Use placeholder and label to set the text.">
+        <State initial={{ value: '' }}>
+          {({ state, setState }) => (
+            <TextField
+              onChangeText={(value) => setState({ value })}
+              value={state.value}
+              label="Name"
+              placeholder="omg your name"
+            />
+          )}
+        </State>
+      </UseCase>
+
+      <UseCase text="i18n text" usage="Use placeholderTx and labelTx for i18n lookups">
+        <State initial={{ value: '' }}>
+          {({ state, setState }) => (
+            <TextField
+              onChangeText={(value) => setState({ value })}
+              value={state.value}
+              placeholderTx="storybook.placeholder"
+              labelTx="storybook.field"
+            />
+          )}
+        </State>
+      </UseCase>
+    </Story>
+  ))
+  .add('Style Overrides', () => (
+    <Story>
+      <UseCase
+        noPad
+        text="Container Styles"
+        usage="Useful for applying margins when laying out a form to remove padding if the form brings its own."
+      >
+        <State initial={{ value: 'Inigo' }}>
+          {({ state, setState }) => (
+            <TextField
+              onChangeText={(value) => setState({ value })}
+              value={state.value}
+              label="First Name"
+              style={{ paddingTop: 0, paddingHorizontal: 40 }}
+            />
+          )}
+        </State>
+        <State initial={{ value: 'Montoya' }}>
+          {({ state, setState }) => (
+            <TextField
+              onChangeText={(value) => setState({ value })}
+              value={state.value}
+              label="Last Name"
+              style={{ paddingBottom: 0 }}
+            />
+          )}
+        </State>
+      </UseCase>
+      <UseCase
+        text="Input Styles"
+        usage="Useful for 1-off exceptions.  Try to steer towards presets for this kind of thing."
+      >
+        <State initial={{ value: 'fancy colour' }}>
+          {({ state, setState }) => (
+            <TextField
+              onChangeText={(value) => setState({ value })}
+              value={state.value}
+              label="Name"
+              inputStyle={{
+                backgroundColor: 'rebeccapurple',
+                color: 'white',
+                padding: 40,
+                borderWidth: 10,
+                borderRadius: 4,
+                borderColor: 'hotpink',
+              }}
+            />
+          )}
+        </State>
+        <Text text="* attention designers:  i am so sorry" preset="secondary" />
+      </UseCase>
+
+      <UseCase text="Style array" usage="Useful for 1-off exceptions, but using style arrays.">
+        <State initial={{ value: 'fancy colour' }}>
+          {({ state, setState }) => (
+            <TextField
+              onChangeText={(value) => setState({ value })}
+              value={state.value}
+              label="Name"
+              style={styleArray}
+              inputStyle={inputStyleArray}
+            />
+          )}
+        </State>
+        <Text text="* attention designers:  i am so sorry" preset="secondary" />
+      </UseCase>
+    </Story>
+  ))
+  .add('Ref Forwarding', () => (
+    <Story>
+      <UseCase text="Ref Forwarding" usage="">
+        <State initial={{ value: 'fancy colour' }}>
+          {({ state, setState }) => (
+            <TextField
+              onChangeText={(value) => setState({ value })}
+              value={state.value}
+              label="Name"
+              inputStyle={{
+                backgroundColor: 'rebeccapurple',
+                color: 'white',
+                padding: 40,
+                borderWidth: 10,
+                borderRadius: 4,
+                borderColor: 'hotpink',
+              }}
+              forwardedRef={(ref) => ref}
+              onFocus={() => {
+                if (alertWhenFocused) {
+                  // Prevent text field focus from being repeatedly triggering alert
+                  alertWhenFocused = false
+                  Alert.alert('Text field focuesed with forwarded ref!')
+                }
+              }}
+            />
+          )}
+        </State>
+        <Text text="* attention designers:  i am so sorry" preset="secondary" />
+      </UseCase>
+    </Story>
+  ))
diff --git a/app_expo/components/text-field/text-field.tsx b/app_expo/components/text-field/text-field.tsx
new file mode 100644
index 0000000..1d56b95
--- /dev/null
+++ b/app_expo/components/text-field/text-field.tsx
@@ -0,0 +1,98 @@
+import React from 'react'
+import { StyleProp, TextInput, TextInputProps, TextStyle, View, ViewStyle } from 'react-native'
+import { color, spacing, typography } from '../../theme'
+import { translate, TxKeyPath } from '../../i18n'
+import { Text } from '../text/text'
+
+// the base styling for the container
+const CONTAINER: ViewStyle = {
+  paddingVertical: spacing[3],
+}
+
+// the base styling for the TextInput
+const INPUT: TextStyle = {
+  fontFamily: typography.primary,
+  color: color.text,
+  minHeight: 44,
+  fontSize: 18,
+  backgroundColor: color.palette.white,
+}
+
+// currently we have no presets, but that changes quickly when you build your app.
+const PRESETS: { [name: string]: ViewStyle } = {
+  default: {},
+}
+
+export interface TextFieldProps extends TextInputProps {
+  /**
+   * The placeholder i18n key.
+   */
+  placeholderTx?: TxKeyPath
+
+  /**
+   * The Placeholder text if no placeholderTx is provided.
+   */
+  placeholder?: string
+
+  /**
+   * The label i18n key.
+   */
+  labelTx?: TxKeyPath
+
+  /**
+   * The label text if no labelTx is provided.
+   */
+  label?: string
+
+  /**
+   * Optional container style overrides useful for margins & padding.
+   */
+  style?: StyleProp<ViewStyle>
+
+  /**
+   * Optional style overrides for the input.
+   */
+  inputStyle?: StyleProp<TextStyle>
+
+  /**
+   * Various look & feels.
+   */
+  preset?: keyof typeof PRESETS
+
+  forwardedRef?: any
+}
+
+/**
+ * A component which has a label and an input together.
+ */
+export function TextField(props: TextFieldProps) {
+  const {
+    placeholderTx,
+    placeholder,
+    labelTx,
+    label,
+    preset = 'default',
+    style: styleOverride,
+    inputStyle: inputStyleOverride,
+    forwardedRef,
+    ...rest
+  } = props
+
+  const containerStyles = [CONTAINER, PRESETS[preset], styleOverride]
+  const inputStyles = [INPUT, inputStyleOverride]
+  const actualPlaceholder = placeholderTx ? translate(placeholderTx) : placeholder
+
+  return (
+    <View style={containerStyles}>
+      <Text preset="fieldLabel" tx={labelTx} text={label} />
+      <TextInput
+        placeholder={actualPlaceholder}
+        placeholderTextColor={color.palette.lighterGrey}
+        underlineColorAndroid={color.transparent}
+        {...rest}
+        style={inputStyles}
+        ref={forwardedRef}
+      />
+    </View>
+  )
+}
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