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Save and restore input in unit converter

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This commit is contained in:
Sad Ellie 2023-09-17 19:57:16 +03:00
parent 75ed884611
commit ce5563b042
1 changed files with 18 additions and 4 deletions
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22
feature/converter/src/main/java/com/sadellie/unitto/feature/converter/ConverterViewModel.kt
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@ -20,6 +20,7 @@ package com.sadellie.unitto.feature.converter
import androidx.compose.ui.text.TextRange import androidx.compose.ui.text.TextRange
import androidx.compose.ui.text.input.TextFieldValue import androidx.compose.ui.text.input.TextFieldValue
import androidx.lifecycle.SavedStateHandle
import androidx.lifecycle.ViewModel import androidx.lifecycle.ViewModel
import androidx.lifecycle.viewModelScope import androidx.lifecycle.viewModelScope
import com.sadellie.unitto.core.base.Token import com.sadellie.unitto.core.base.Token
@ -58,9 +59,11 @@ import javax.inject.Inject
internal class ConverterViewModel @Inject constructor( internal class ConverterViewModel @Inject constructor(
private val userPrefsRepository: UserPreferencesRepository, private val userPrefsRepository: UserPreferencesRepository,
private val unitsRepo: UnitsRepository, private val unitsRepo: UnitsRepository,
private val savedStateHandle: SavedStateHandle
) : ViewModel() { ) : ViewModel() {
private val _input = MutableStateFlow(TextFieldValue()) private val converterInputKey = "CONVERTER_INPUT"
private val _input = MutableStateFlow(TextFieldValue(savedStateHandle[converterInputKey] ?: ""))
private val _calculation = MutableStateFlow<BigDecimal?>(null) private val _calculation = MutableStateFlow<BigDecimal?>(null)
private val _result = MutableStateFlow<ConverterResult>(ConverterResult.Loading) private val _result = MutableStateFlow<ConverterResult>(ConverterResult.Loading)
private val _unitFrom = MutableStateFlow<AbstractUnit?>(null) private val _unitFrom = MutableStateFlow<AbstractUnit?>(null)
@ -220,11 +223,22 @@ internal class ConverterViewModel @Inject constructor(
} }
} }
fun addTokens(tokens: String) = _input.update { it.addTokens(tokens) } fun addTokens(tokens: String) = _input.update {
val newValue = it.addTokens(tokens)
savedStateHandle[converterInputKey] = newValue.text
newValue
}
fun deleteTokens() = _input.update { it.deleteTokens() } fun deleteTokens() = _input.update {
val newValue = it.deleteTokens()
savedStateHandle[converterInputKey] = newValue.text
newValue
}
fun clearInput() = _input.update { TextFieldValue() } fun clearInput() = _input.update {
savedStateHandle[converterInputKey] = ""
TextFieldValue()
}
fun onCursorChange(selection: TextRange) = _input.update { it.copy(selection = selection) } fun onCursorChange(selection: TextRange) = _input.update { it.copy(selection = selection) }