Create pod for Compose Notifs

//

// Copyright (C) 2025 The Android Open Source Project

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

//      http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

//

package {

    default_applicable_licenses: ["frameworks_base_packages_SystemUI_license"],

}

// Pod for all compose-based notification rendering.

// IMPORTANT: this is an alpha implementation of pods; please reach out to saff@ or caitlinshk@

// before planning another folder based on this model.

android_library {

    name: "com.android.systemui.notifications.ui.composable",

    visibility: [

        // TODO: b/431222735 - This is currently only used in the Gallery app, we may want to tweak

        //  the visibility or create an api library later.

        "//vendor:__subpackages__",

    ],

    srcs: [

        "**/*.kt",

    ],

    static_libs: [

        "com.android.systemui.notifications.ui.viewmodel-api",

        "PlatformComposeCore",

        "androidx.compose.foundation_foundation",

        "androidx.compose.foundation_foundation-layout",

        "androidx.compose.material_material",

        "androidx.compose.material_material-icons-extended",

        "androidx.compose.runtime_runtime",

    ],

    defaults: [

        "SystemUI_pod_defaults_impl",

    ],

}

<?xml version="1.0" encoding="utf-8"?>

<!--

  ~ Copyright (C) 2025 The Android Open Source Project

  ~

  ~ Licensed under the Apache License, Version 2.0 (the "License");

  ~ you may not use this file except in compliance with the License.

  ~ You may obtain a copy of the License at

  ~

  ~      http://www.apache.org/licenses/LICENSE-2.0

  ~

  ~ Unless required by applicable law or agreed to in writing, software

  ~ distributed under the License is distributed on an "AS IS" BASIS,

  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  ~ See the License for the specific language governing permissions and

  ~ limitations under the License.

  -->

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.android.systemui.notifications.ui.composable">

</manifest>

 No newline at end of file

/*

 * Copyright (C) 2025 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.android.systemui.notifications.ui.composable.component

import androidx.annotation.FloatRange

import androidx.compose.material3.MaterialTheme

import androidx.compose.runtime.Composable

import androidx.compose.runtime.ReadOnlyComposable

import androidx.compose.ui.graphics.Color

// Note: This is forked from

// frameworks/base/packages/SystemUI/compose/features/src/com/android/systemui/notifications/ui/composable/row/NotificationRowColors.kt

// TODO: b/432249649 - Once we move the compose code for bundles into a pod, we should consolidate

//  these duplicated files.

@Composable

@ReadOnlyComposable

internal fun notificationProtectionColor(): Color {

    // Per android.app.Notification.Colors, this is a 90% blend

    // of materialColorOnSurface over materialColorSurfaceContainerHigh

    val background = MaterialTheme.colorScheme.surfaceContainerHigh

    val primaryText = MaterialTheme.colorScheme.onSurface

    return blendARGB(primaryText, background, 0.9f)

}

/**

 * Blend between two ARGB colors using the given ratio.

 *

 * A blend ratio of 0.0 will result in [color1], 0.5 will give an even blend, 1.0 will result in

 * [color2].

 *

 * @param color1 the first ARGB color

 * @param color2 the second ARGB color

 * @param ratio the blend ratio of [color1] to [color2]

 * @see [com.android.internal.graphics.ColorUtils.blendARGB]

 */

private fun blendARGB(

    color1: Color,

    color2: Color,

    @FloatRange(from = 0.0, to = 1.0) ratio: Float,

): Color {

    val inverseRatio = 1 - ratio

    return Color(

        red = color1.red * inverseRatio + color2.red * ratio,

        green = color1.green * inverseRatio + color2.green * ratio,

        blue = color1.blue * inverseRatio + color2.blue * ratio,

        alpha = color1.alpha * inverseRatio + color2.alpha * ratio,

    )

}

/*

 * Copyright (C) 2025 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.android.systemui.notifications.ui.composable.component

import androidx.compose.foundation.background

import androidx.compose.foundation.layout.Box

import androidx.compose.foundation.layout.Row

import androidx.compose.foundation.layout.padding

import androidx.compose.foundation.layout.size

import androidx.compose.foundation.shape.RoundedCornerShape

import androidx.compose.material.icons.Icons

import androidx.compose.material.icons.filled.ExpandLess

import androidx.compose.material.icons.filled.ExpandMore

import androidx.compose.material3.ExperimentalMaterial3ExpressiveApi

import androidx.compose.material3.Icon

import androidx.compose.material3.MaterialTheme

import androidx.compose.material3.Text

import androidx.compose.runtime.Composable

import androidx.compose.ui.Alignment

import androidx.compose.ui.Modifier

import androidx.compose.ui.graphics.Color

import androidx.compose.ui.platform.LocalDensity

import androidx.compose.ui.unit.dp

import androidx.compose.ui.unit.sp

// TODO: b/432249649 - Once we move the compose code for bundles into a pod, we should consolidate

//  these elements with ExpansionControl used there.

@OptIn(ExperimentalMaterial3ExpressiveApi::class)

@Composable

internal fun Expander(expanded: Boolean, modifier: Modifier = Modifier, numberToShow: Int? = null) {

    val textColor = MaterialTheme.colorScheme.onSurface

    val surfaceColor = notificationProtectionColor()

    Box(modifier = modifier.background(surfaceColor, RoundedCornerShape(100.dp))) {

        Row(

            verticalAlignment = Alignment.CenterVertically,

            modifier = Modifier.padding(vertical = 2.dp, horizontal = 6.dp),

        ) {

            val iconSizeDp = with(LocalDensity.current) { 16.sp.toDp() }

            if (numberToShow != null) {

                Text(

                    text = numberToShow.toString(),

                    style = MaterialTheme.typography.labelSmallEmphasized,

                    color = textColor,

                    modifier = Modifier.padding(end = 2.dp),

                )

            }

            Chevron(expanded, modifier = Modifier.size(iconSizeDp), color = textColor)

        }

    }

}

@Composable

private fun Chevron(expanded: Boolean, color: Color, modifier: Modifier = Modifier) {

    Icon(

        imageVector = if (expanded) Icons.Default.ExpandLess else Icons.Default.ExpandMore,

        contentDescription = null,

        tint = color,

        modifier = modifier,

    )

}

/*

 * Copyright (C) 2025 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.android.systemui.notifications.ui.composable.component

import android.graphics.drawable.Drawable

import androidx.compose.foundation.Image

import androidx.compose.foundation.background

import androidx.compose.foundation.layout.Box

import androidx.compose.foundation.layout.fillMaxSize

import androidx.compose.foundation.layout.size

import androidx.compose.foundation.shape.CircleShape

import androidx.compose.runtime.Composable

import androidx.compose.ui.Modifier

import androidx.compose.ui.draw.clip

import androidx.compose.ui.graphics.Color

import androidx.compose.ui.layout.ContentScale

import androidx.compose.ui.unit.dp

import com.android.compose.ui.graphics.painter.rememberDrawablePainter

@Composable

internal fun AppIcon(drawable: Drawable, modifier: Modifier = Modifier) {

    Box(modifier = modifier.size(40.dp).clip(CircleShape).background(Color.White)) {

        Image(

            painter = rememberDrawablePainter(drawable),

            contentDescription = null,

            modifier = Modifier.fillMaxSize(),

            contentScale = ContentScale.Fit,

        )

    }

}