amethyst/app/src/main/java/com/vitorpamplona/amethyst/ui/components/TranslateableRichTextViewer.kt

255 wiersze
11 KiB
Kotlin

package com.vitorpamplona.amethyst.ui.components
import android.content.res.Resources
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.Spacer
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.foundation.text.ClickableText
import androidx.compose.material.Divider
import androidx.compose.material.DropdownMenu
import androidx.compose.material.DropdownMenuItem
import androidx.compose.material.Icon
import androidx.compose.material.LocalTextStyle
import androidx.compose.material.MaterialTheme
import androidx.compose.material.Text
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.Check
import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.runtime.getValue
import androidx.compose.runtime.livedata.observeAsState
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.setValue
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.platform.LocalContext
import androidx.compose.ui.res.stringResource
import androidx.compose.ui.text.SpanStyle
import androidx.compose.ui.text.buildAnnotatedString
import androidx.compose.ui.text.style.TextOverflow
import androidx.compose.ui.text.withStyle
import androidx.compose.ui.unit.dp
import androidx.core.os.ConfigurationCompat
import androidx.navigation.NavController
import com.vitorpamplona.amethyst.R
import com.vitorpamplona.amethyst.service.lang.LanguageTranslatorService
import com.vitorpamplona.amethyst.service.lang.ResultOrError
import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.withContext
import java.util.Locale
@Composable
fun TranslateableRichTextViewer(
content: String,
canPreview: Boolean,
modifier: Modifier = Modifier,
tags: List<List<String>>?,
backgroundColor: Color,
accountViewModel: AccountViewModel,
navController: NavController
) {
val translatedTextState = remember {
mutableStateOf(ResultOrError(content, null, null, null))
}
var showOriginal by remember { mutableStateOf(false) }
var langSettingsPopupExpanded by remember { mutableStateOf(false) }
val context = LocalContext.current
val accountState by accountViewModel.accountLanguagesLiveData.observeAsState()
val account = accountState?.account ?: return
LaunchedEffect(accountState) {
withContext(Dispatchers.IO) {
LanguageTranslatorService.autoTranslate(
content,
account.dontTranslateFrom,
account.translateTo
).addOnCompleteListener { task ->
if (task.isSuccessful && content != task.result.result) {
if (task.result.sourceLang != null && task.result.targetLang != null) {
val preference = account.preferenceBetween(task.result.sourceLang!!, task.result.targetLang!!)
showOriginal = preference == task.result.sourceLang
}
translatedTextState.value = task.result
} else {
translatedTextState.value = ResultOrError(content, null, null, null)
}
}
}
}
val toBeViewed = if (showOriginal) content else translatedTextState.value.result ?: content
Column(modifier = Modifier.padding(top = 5.dp)) {
ExpandableRichTextViewer(
toBeViewed,
canPreview,
modifier,
tags,
backgroundColor,
accountViewModel,
navController
)
val target = translatedTextState.value.targetLang
val source = translatedTextState.value.sourceLang
if (source != null && target != null) {
if (source != target) {
Row(
modifier = Modifier
.fillMaxWidth()
.padding(top = 5.dp)
) {
val clickableTextStyle =
SpanStyle(color = MaterialTheme.colors.primary.copy(alpha = 0.52f))
val annotatedTranslationString = buildAnnotatedString {
withStyle(clickableTextStyle) {
pushStringAnnotation("langSettings", true.toString())
append(stringResource(R.string.auto))
}
append("-${stringResource(R.string.translated_from)} ")
withStyle(clickableTextStyle) {
pushStringAnnotation("showOriginal", true.toString())
append(Locale(source).displayName)
}
append(" ${stringResource(R.string.to)} ")
withStyle(clickableTextStyle) {
pushStringAnnotation("showOriginal", false.toString())
append(Locale(target).displayName)
}
}
ClickableText(
text = annotatedTranslationString,
style = LocalTextStyle.current.copy(color = MaterialTheme.colors.onSurface.copy(alpha = 0.32f)),
overflow = TextOverflow.Visible,
maxLines = 3
) { spanOffset ->
annotatedTranslationString.getStringAnnotations(spanOffset, spanOffset)
.firstOrNull()
?.also { span ->
if (span.tag == "showOriginal") {
showOriginal = span.item.toBoolean()
} else {
langSettingsPopupExpanded = !langSettingsPopupExpanded
}
}
}
DropdownMenu(
expanded = langSettingsPopupExpanded,
onDismissRequest = { langSettingsPopupExpanded = false }
) {
DropdownMenuItem(onClick = {
accountViewModel.dontTranslateFrom(source, context)
langSettingsPopupExpanded = false
}) {
if (source in account.dontTranslateFrom) {
Icon(
imageVector = Icons.Default.Check,
contentDescription = null,
modifier = Modifier.size(24.dp)
)
} else {
Spacer(modifier = Modifier.size(24.dp))
}
Spacer(modifier = Modifier.size(10.dp))
Text(stringResource(R.string.never_translate_from) + "${Locale(source).displayName}")
}
Divider()
DropdownMenuItem(onClick = {
accountViewModel.prefer(source, target, source)
langSettingsPopupExpanded = false
}) {
if (account.preferenceBetween(source, target) == source) {
Icon(
imageVector = Icons.Default.Check,
contentDescription = null,
modifier = Modifier.size(24.dp)
)
} else {
Spacer(modifier = Modifier.size(24.dp))
}
Spacer(modifier = Modifier.size(10.dp))
Text(
"${stringResource(R.string.show_in)} ${Locale(source).displayName} ${
stringResource(
R.string.first
)
}"
)
}
DropdownMenuItem(onClick = {
accountViewModel.prefer(source, target, target)
langSettingsPopupExpanded = false
}) {
if (account.preferenceBetween(source, target) == target) {
Icon(
imageVector = Icons.Default.Check,
contentDescription = null,
modifier = Modifier.size(24.dp)
)
} else {
Spacer(modifier = Modifier.size(24.dp))
}
Spacer(modifier = Modifier.size(10.dp))
Text(
"${stringResource(R.string.show_in)} ${Locale(target).displayName} ${
stringResource(
R.string.first
)
}"
)
}
Divider()
val languageList =
ConfigurationCompat.getLocales(Resources.getSystem().getConfiguration())
for (i in 0 until languageList.size()) {
languageList.get(i)?.let { lang ->
DropdownMenuItem(onClick = {
accountViewModel.translateTo(lang, context)
langSettingsPopupExpanded = false
}) {
if (lang.language in account.translateTo) {
Icon(
imageVector = Icons.Default.Check,
contentDescription = null,
modifier = Modifier.size(24.dp)
)
} else {
Spacer(modifier = Modifier.size(24.dp))
}
Spacer(modifier = Modifier.size(10.dp))
Text("${stringResource(R.string.always_translate_to)}${lang.displayName}")
}
}
}
}
}
}
}
}
}