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80 changes: 80 additions & 0 deletions
80
payments-ui-core/src/main/java/com/stripe/android/ui/core/elements/PostalCodeConfig.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| package com.stripe.android.ui.core.elements | ||
|
|
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| import androidx.annotation.StringRes | ||
| import androidx.compose.ui.text.input.KeyboardCapitalization | ||
| import androidx.compose.ui.text.input.KeyboardType | ||
| import androidx.compose.ui.text.input.VisualTransformation | ||
| import kotlinx.coroutines.flow.MutableStateFlow | ||
|
|
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| class PostalCodeConfig( | ||
| @StringRes override val label: Int, | ||
| override val capitalization: KeyboardCapitalization = KeyboardCapitalization.Words, | ||
| override val keyboard: KeyboardType = KeyboardType.Text, | ||
| override val trailingIcon: MutableStateFlow<TextFieldIcon?> = MutableStateFlow(null), | ||
| country: String | ||
| ) : TextFieldConfig { | ||
| override val debugLabel: String = "postal_code_text" | ||
| override val visualTransformation: VisualTransformation? = null | ||
| override val loading: MutableStateFlow<Boolean> = MutableStateFlow(false) | ||
| private val format = CountryPostalFormat.forCountry(country) | ||
|
|
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| override fun determineState(input: String): TextFieldState = object : TextFieldState { | ||
| override fun shouldShowError(hasFocus: Boolean) = false | ||
|
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| override fun isValid(): Boolean { | ||
| return input.length in format.minimumLength..format.maximumLength && | ||
| input.matches(format.regexPattern) | ||
| } | ||
|
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| override fun getError(): FieldError? = null | ||
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| override fun isFull(): Boolean = input.length >= format.minimumLength | ||
|
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| override fun isBlank(): Boolean = input.isBlank() | ||
| } | ||
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| override fun filter(userTyped: String): String = | ||
| if ( | ||
| setOf(KeyboardType.Number, KeyboardType.NumberPassword).contains(keyboard) | ||
| ) { | ||
| userTyped.filter { it.isDigit() } | ||
| } else { | ||
| userTyped | ||
| }.replace(Regex("\\s*"), "") | ||
|
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| override fun convertToRaw(displayName: String) = displayName | ||
|
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| override fun convertFromRaw(rawValue: String) = rawValue | ||
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| sealed class CountryPostalFormat( | ||
| val minimumLength: Int, | ||
| val maximumLength: Int, | ||
| val regexPattern: Regex | ||
| ) { | ||
| object CA : CountryPostalFormat( | ||
| minimumLength = 6, | ||
| maximumLength = 6, | ||
| regexPattern = Regex("([a-zA-Z]\\d)+") | ||
| ) | ||
| object US : CountryPostalFormat( | ||
| minimumLength = 5, | ||
| maximumLength = 9, | ||
| regexPattern = Regex("\\d+") | ||
| ) | ||
| object Other : CountryPostalFormat( | ||
| minimumLength = 4, | ||
| maximumLength = 12, | ||
| regexPattern = Regex(".+") | ||
| ) | ||
|
|
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| companion object { | ||
| fun forCountry(country: String): CountryPostalFormat { | ||
| return when (country) { | ||
| "US" -> US | ||
| "CA" -> CA | ||
| else -> Other | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |
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54 changes: 54 additions & 0 deletions
54
payments-ui-core/src/test/java/com/stripe/android/ui/core/elements/PostalCodeConfigTest.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| package com.stripe.android.ui.core.elements | ||
|
|
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| import androidx.compose.ui.text.input.KeyboardType | ||
| import com.google.common.truth.Truth | ||
| import com.stripe.android.core.R | ||
| import org.junit.Test | ||
|
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| class PostalCodeConfigTest { | ||
|
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| @Test | ||
| fun `verify US postal codes`() { | ||
| with(createConfigForCountry("US", KeyboardType.Number)) { | ||
| Truth.assertThat(determineStateForInput("").isValid()).isFalse() | ||
| Truth.assertThat(determineStateForInput("").isFull()).isFalse() | ||
| Truth.assertThat(determineStateForInput("12345").isValid()).isTrue() | ||
| Truth.assertThat(determineStateForInput("12345").isFull()).isTrue() | ||
| Truth.assertThat(determineStateForInput("1234567890").isValid()).isFalse() | ||
| Truth.assertThat(determineStateForInput("1234567890").isFull()).isFalse() | ||
| Truth.assertThat(determineStateForInput("abcde").isValid()).isFalse() | ||
| Truth.assertThat(determineStateForInput("abcde").isFull()).isFalse() | ||
| } | ||
| } | ||
|
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| @Test | ||
| fun `verify CA postal codes`() { | ||
| with(createConfigForCountry("CA")) { | ||
| Truth.assertThat(determineStateForInput("").isValid()).isFalse() | ||
| Truth.assertThat(determineStateForInput("").isFull()).isFalse() | ||
| Truth.assertThat(determineStateForInput("AAA AAA").isValid()).isFalse() | ||
| Truth.assertThat(determineStateForInput("AAAAAA").isValid()).isFalse() | ||
| Truth.assertThat(determineStateForInput("A0A 0A0").isValid()).isTrue() | ||
| Truth.assertThat(determineStateForInput("A0A 0A0").isFull()).isTrue() | ||
| Truth.assertThat(determineStateForInput("A0A0A0").isValid()).isTrue() | ||
| Truth.assertThat(determineStateForInput("A0A0A0").isFull()).isTrue() | ||
| Truth.assertThat(determineStateForInput("A0A0A0A0").isValid()).isFalse() | ||
| Truth.assertThat(determineStateForInput("A0A0A0A0").isFull()).isTrue() | ||
| } | ||
| } | ||
|
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| private fun createConfigForCountry( | ||
| country: String, | ||
| keyboardType: KeyboardType = KeyboardType.Text | ||
| ): PostalCodeConfig { | ||
| return PostalCodeConfig( | ||
| label = R.string.address_label_postal_code, | ||
| country = country, | ||
| keyboard = keyboardType | ||
| ) | ||
| } | ||
|
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| private fun PostalCodeConfig.determineStateForInput(input: String): TextFieldState { | ||
| return determineState(filter(input)) | ||
| } | ||
| } |