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[feature] Support import external subtitles (#43)
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app/src/main/java/com/skyd/anivu/ui/component/SystemUiController.kt
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| package com.skyd.anivu.ui.component | ||
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| import android.app.Activity | ||
| import android.os.Build | ||
| import android.view.View | ||
| import android.view.Window | ||
| import androidx.compose.runtime.Composable | ||
| import androidx.compose.runtime.Stable | ||
| import androidx.compose.runtime.remember | ||
| import androidx.compose.ui.graphics.Color | ||
| import androidx.compose.ui.graphics.compositeOver | ||
| import androidx.compose.ui.graphics.luminance | ||
| import androidx.compose.ui.graphics.toArgb | ||
| import androidx.compose.ui.platform.LocalView | ||
| import androidx.compose.ui.window.DialogWindowProvider | ||
| import androidx.core.view.ViewCompat | ||
| import androidx.core.view.WindowCompat | ||
| import androidx.core.view.WindowInsetsCompat | ||
| import androidx.core.view.WindowInsetsControllerCompat | ||
| import com.skyd.anivu.ext.tryWindow | ||
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| @Stable | ||
| interface SystemUiController { | ||
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| /** | ||
| * Control for the behavior of the system bars. This value should be one of the | ||
| * [WindowInsetsControllerCompat] behavior constants: | ||
| * [WindowInsetsControllerCompat.BEHAVIOR_SHOW_BARS_BY_TOUCH] (Deprecated), | ||
| * [WindowInsetsControllerCompat.BEHAVIOR_DEFAULT] and | ||
| * [WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE]. | ||
| */ | ||
| var systemBarsBehavior: Int | ||
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| /** | ||
| * Property which holds the status bar visibility. If set to true, show the status bar, | ||
| * otherwise hide the status bar. | ||
| */ | ||
| var isStatusBarVisible: Boolean | ||
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| /** | ||
| * Property which holds the navigation bar visibility. If set to true, show the navigation bar, | ||
| * otherwise hide the navigation bar. | ||
| */ | ||
| var isNavigationBarVisible: Boolean | ||
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| /** | ||
| * Property which holds the status & navigation bar visibility. If set to true, show both bars, | ||
| * otherwise hide both bars. | ||
| */ | ||
| var isSystemBarsVisible: Boolean | ||
| get() = isNavigationBarVisible && isStatusBarVisible | ||
| set(value) { | ||
| isStatusBarVisible = value | ||
| isNavigationBarVisible = value | ||
| } | ||
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| /** | ||
| * Set the status bar color. | ||
| * | ||
| * @param color The **desired** [Color] to set. This may require modification if running on an | ||
| * API level that only supports white status bar icons. | ||
| * @param darkIcons Whether dark status bar icons would be preferable. | ||
| * @param transformColorForLightContent A lambda which will be invoked to transform [color] if | ||
| * dark icons were requested but are not available. Defaults to applying a black scrim. | ||
| * | ||
| * @see statusBarDarkContentEnabled | ||
| */ | ||
| fun setStatusBarColor( | ||
| color: Color, | ||
| darkIcons: Boolean = color.luminance() > 0.5f, | ||
| transformColorForLightContent: (Color) -> Color = BlackScrimmed | ||
| ) | ||
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| /** | ||
| * Set the navigation bar color. | ||
| * | ||
| * @param color The **desired** [Color] to set. This may require modification if running on an | ||
| * API level that only supports white navigation bar icons. Additionally this will be ignored | ||
| * and [Color.Transparent] will be used on API 29+ where gesture navigation is preferred or the | ||
| * system UI automatically applies background protection in other navigation modes. | ||
| * @param darkIcons Whether dark navigation bar icons would be preferable. | ||
| * @param navigationBarContrastEnforced Whether the system should ensure that the navigation | ||
| * bar has enough contrast when a fully transparent background is requested. Only supported on | ||
| * API 29+. | ||
| * @param transformColorForLightContent A lambda which will be invoked to transform [color] if | ||
| * dark icons were requested but are not available. Defaults to applying a black scrim. | ||
| * | ||
| * @see navigationBarDarkContentEnabled | ||
| * @see navigationBarContrastEnforced | ||
| */ | ||
| fun setNavigationBarColor( | ||
| color: Color, | ||
| darkIcons: Boolean = color.luminance() > 0.5f, | ||
| navigationBarContrastEnforced: Boolean = true, | ||
| transformColorForLightContent: (Color) -> Color = BlackScrimmed | ||
| ) | ||
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| /** | ||
| * Set the status and navigation bars to [color]. | ||
| * | ||
| * @see setStatusBarColor | ||
| * @see setNavigationBarColor | ||
| */ | ||
| fun setSystemBarsColor( | ||
| color: Color, | ||
| darkIcons: Boolean = color.luminance() > 0.5f, | ||
| isNavigationBarContrastEnforced: Boolean = true, | ||
| transformColorForLightContent: (Color) -> Color = BlackScrimmed | ||
| ) { | ||
| setStatusBarColor(color, darkIcons, transformColorForLightContent) | ||
| setNavigationBarColor( | ||
| color, | ||
| darkIcons, | ||
| isNavigationBarContrastEnforced, | ||
| transformColorForLightContent | ||
| ) | ||
| } | ||
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| /** | ||
| * Property which holds whether the status bar icons + content are 'dark' or not. | ||
| */ | ||
| var statusBarDarkContentEnabled: Boolean | ||
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| /** | ||
| * Property which holds whether the navigation bar icons + content are 'dark' or not. | ||
| */ | ||
| var navigationBarDarkContentEnabled: Boolean | ||
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| /** | ||
| * Property which holds whether the status & navigation bar icons + content are 'dark' or not. | ||
| */ | ||
| var systemBarsDarkContentEnabled: Boolean | ||
| get() = statusBarDarkContentEnabled && navigationBarDarkContentEnabled | ||
| set(value) { | ||
| statusBarDarkContentEnabled = value | ||
| navigationBarDarkContentEnabled = value | ||
| } | ||
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| /** | ||
| * Property which holds whether the system is ensuring that the navigation bar has enough | ||
| * contrast when a fully transparent background is requested. Only has an affect when running | ||
| * on Android API 29+ devices. | ||
| */ | ||
| var isNavigationBarContrastEnforced: Boolean | ||
| } | ||
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| /** | ||
| * Remembers a [SystemUiController] for the given [window]. | ||
| * | ||
| * If no [window] is provided, an attempt to find the correct [Window] is made. | ||
| * | ||
| * First, if the [LocalView]'s parent is a [DialogWindowProvider], then that dialog's [Window] will | ||
| * be used. | ||
| * | ||
| * Second, we attempt to find [Window] for the [Activity] containing the [LocalView]. | ||
| * | ||
| * If none of these are found (such as may happen in a preview), then the functionality of the | ||
| * returned [SystemUiController] will be degraded, but won't throw an exception. | ||
| */ | ||
| @Composable | ||
| fun rememberSystemUiController( | ||
| window: Window? = LocalView.current.tryWindow, | ||
| ): SystemUiController { | ||
| val view = LocalView.current | ||
| return remember(view, window) { AndroidSystemUiController(view, window) } | ||
| } | ||
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| /** | ||
| * A helper class for setting the navigation and status bar colors for a [View], gracefully | ||
| * degrading behavior based upon API level. | ||
| * | ||
| * Typically you would use [rememberSystemUiController] to remember an instance of this. | ||
| */ | ||
| internal class AndroidSystemUiController( | ||
| private val view: View, | ||
| private val window: Window? | ||
| ) : SystemUiController { | ||
| private val windowInsetsController = window?.let { | ||
| WindowCompat.getInsetsController(it, view) | ||
| } | ||
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| override fun setStatusBarColor( | ||
| color: Color, | ||
| darkIcons: Boolean, | ||
| transformColorForLightContent: (Color) -> Color | ||
| ) { | ||
| statusBarDarkContentEnabled = darkIcons | ||
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| window?.statusBarColor = when { | ||
| darkIcons && windowInsetsController?.isAppearanceLightStatusBars != true -> { | ||
| // If we're set to use dark icons, but our windowInsetsController call didn't | ||
| // succeed (usually due to API level), we instead transform the color to maintain | ||
| // contrast | ||
| transformColorForLightContent(color) | ||
| } | ||
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| else -> color | ||
| }.toArgb() | ||
| } | ||
|
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| override fun setNavigationBarColor( | ||
| color: Color, | ||
| darkIcons: Boolean, | ||
| navigationBarContrastEnforced: Boolean, | ||
| transformColorForLightContent: (Color) -> Color | ||
| ) { | ||
| navigationBarDarkContentEnabled = darkIcons | ||
| isNavigationBarContrastEnforced = navigationBarContrastEnforced | ||
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| window?.navigationBarColor = when { | ||
| darkIcons && windowInsetsController?.isAppearanceLightNavigationBars != true -> { | ||
| // If we're set to use dark icons, but our windowInsetsController call didn't | ||
| // succeed (usually due to API level), we instead transform the color to maintain | ||
| // contrast | ||
| transformColorForLightContent(color) | ||
| } | ||
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| else -> color | ||
| }.toArgb() | ||
| } | ||
|
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| override var systemBarsBehavior: Int | ||
| get() = windowInsetsController?.systemBarsBehavior ?: 0 | ||
| set(value) { | ||
| windowInsetsController?.systemBarsBehavior = value | ||
| } | ||
|
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| override var isStatusBarVisible: Boolean | ||
| get() { | ||
| return ViewCompat.getRootWindowInsets(view) | ||
| ?.isVisible(WindowInsetsCompat.Type.statusBars()) == true | ||
| } | ||
| set(value) { | ||
| if (value) { | ||
| windowInsetsController?.show(WindowInsetsCompat.Type.statusBars()) | ||
| } else { | ||
| windowInsetsController?.hide(WindowInsetsCompat.Type.statusBars()) | ||
| } | ||
| } | ||
|
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| override var isNavigationBarVisible: Boolean | ||
| get() { | ||
| return ViewCompat.getRootWindowInsets(view) | ||
| ?.isVisible(WindowInsetsCompat.Type.navigationBars()) == true | ||
| } | ||
| set(value) { | ||
| if (value) { | ||
| windowInsetsController?.show(WindowInsetsCompat.Type.navigationBars()) | ||
| } else { | ||
| windowInsetsController?.hide(WindowInsetsCompat.Type.navigationBars()) | ||
| } | ||
| } | ||
|
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| override var statusBarDarkContentEnabled: Boolean | ||
| get() = windowInsetsController?.isAppearanceLightStatusBars == true | ||
| set(value) { | ||
| windowInsetsController?.isAppearanceLightStatusBars = value | ||
| } | ||
|
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| override var navigationBarDarkContentEnabled: Boolean | ||
| get() = windowInsetsController?.isAppearanceLightNavigationBars == true | ||
| set(value) { | ||
| windowInsetsController?.isAppearanceLightNavigationBars = value | ||
| } | ||
|
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| override var isNavigationBarContrastEnforced: Boolean | ||
| get() = Build.VERSION.SDK_INT >= 29 && window?.isNavigationBarContrastEnforced == true | ||
| set(value) { | ||
| if (Build.VERSION.SDK_INT >= 29) { | ||
| window?.isNavigationBarContrastEnforced = value | ||
| } | ||
| } | ||
| } | ||
|
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| private val BlackScrim = Color(0f, 0f, 0f, 0.3f) // 30% opaque black | ||
| private val BlackScrimmed: (Color) -> Color = { original -> | ||
| BlackScrim.compositeOver(original) | ||
| } |
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