79 lines
2.3 KiB
Kotlin
79 lines
2.3 KiB
Kotlin
package org.thoughtcrime.securesms.ui
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import android.content.Context
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import androidx.annotation.AttrRes
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import androidx.appcompat.view.ContextThemeWrapper
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import androidx.compose.foundation.background
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import androidx.compose.foundation.layout.Box
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import androidx.compose.material.MaterialTheme
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import androidx.compose.runtime.Composable
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import androidx.compose.runtime.CompositionLocalProvider
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import androidx.compose.runtime.staticCompositionLocalOf
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.graphics.Color
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import androidx.compose.ui.platform.LocalContext
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import androidx.compose.ui.tooling.preview.PreviewParameterProvider
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import com.google.accompanist.themeadapter.appcompat.AppCompatTheme
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import com.google.android.material.color.MaterialColors
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import network.loki.messenger.R
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val LocalExtraColors = staticCompositionLocalOf<ExtraColors> { error("No Custom Attribute value provided") }
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val LocalPreviewMode = staticCompositionLocalOf { false }
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data class ExtraColors(
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val settingsBackground: Color,
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)
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/**
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* Converts current Theme to Compose Theme.
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*/
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@Composable
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fun AppTheme(
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content: @Composable () -> Unit
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) {
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val extraColors = LocalContext.current.run {
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ExtraColors(
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settingsBackground = getColorFromTheme(R.attr.colorSettingsBackground),
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)
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}
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CompositionLocalProvider(LocalExtraColors provides extraColors) {
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AppCompatTheme {
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content()
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}
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}
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}
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fun Context.getColorFromTheme(@AttrRes attr: Int, defaultValue: Int = 0x0): Color =
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MaterialColors.getColor(this, attr, defaultValue).let(::Color)
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/**
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* Set the theme and a background for Compose Previews.
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*/
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@Composable
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fun PreviewTheme(
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themeResId: Int,
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content: @Composable () -> Unit
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) {
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CompositionLocalProvider(
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LocalContext provides ContextThemeWrapper(LocalContext.current, themeResId),
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LocalPreviewMode provides true
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) {
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AppTheme {
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Box(modifier = Modifier.background(color = MaterialTheme.colors.background)) {
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content()
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}
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}
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}
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}
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class ThemeResPreviewParameterProvider : PreviewParameterProvider<Int> {
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override val values = sequenceOf(
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R.style.Classic_Dark,
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R.style.Classic_Light,
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R.style.Ocean_Dark,
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R.style.Ocean_Light,
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)
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}
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