[Owl] Update to snapshot 6901934.

Change-Id: I15c92c5252e61b8918bbb9c80cbdc679e3809555

Owl/app/src/main/java/com/example/owl/ui/OwlApp.kt

@@ -25,7 +25,7 @@ import androidx.compose.runtime.savedinstancestate.rememberSavedInstanceState
 import com.example.owl.ui.course.CourseDetails
 import com.example.owl.ui.courses.Courses
 import com.example.owl.ui.onboarding.Onboarding
-import com.example.owl.ui.utils.BackDispatcherAmbient
+import com.example.owl.ui.utils.AmbientBackDispatcher
 import com.example.owl.ui.utils.Navigator
 import com.example.owl.ui.utils.ProvideDisplayInsets
 import com.example.owl.ui.utils.ProvideImageLoader
@@ -40,7 +40,7 @@ fun OwlApp(backDispatcher: OnBackPressedDispatcher) {
     }
     val actions = remember(navigator) { Actions(navigator) }
 
-    Providers(BackDispatcherAmbient provides backDispatcher) {
+    Providers(AmbientBackDispatcher provides backDispatcher) {
         ProvideDisplayInsets {
             ProvideImageLoader {
                 Crossfade(navigator.current) { destination ->

Owl/app/src/main/java/com/example/owl/ui/common/CourseListItem.kt

@@ -26,6 +26,7 @@ import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.preferredHeight
 import androidx.compose.foundation.layout.preferredSize
+import androidx.compose.foundation.layout.wrapContentWidth
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.material.MaterialTheme
 import androidx.compose.material.Surface
@@ -104,6 +105,7 @@ fun CourseListItem(
                         modifier = Modifier
                             .padding(start = 8.dp)
                             .weight(1f)
+                            .wrapContentWidth(Alignment.Start)
                     )
                     NetworkImage(
                         url = course.instructor,

Owl/app/src/main/java/com/example/owl/ui/course/CourseDetails.kt

@@ -37,8 +37,8 @@ import androidx.compose.foundation.layout.preferredHeight
 import androidx.compose.foundation.layout.preferredSize
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.AmbientEmphasisLevels
 import androidx.compose.material.Divider
-import androidx.compose.material.EmphasisAmbient
 import androidx.compose.material.ExperimentalMaterialApi
 import androidx.compose.material.FractionalThreshold
 import androidx.compose.material.IconButton
@@ -81,7 +81,7 @@ import com.example.owl.ui.common.OutlinedAvatar
 import com.example.owl.ui.theme.BlueTheme
 import com.example.owl.ui.theme.PinkTheme
 import com.example.owl.ui.theme.pink500
-import com.example.owl.ui.utils.InsetsAmbient
+import com.example.owl.ui.utils.AmbientInsets
 import com.example.owl.ui.utils.NetworkImage
 import com.example.owl.ui.utils.backHandler
 import com.example.owl.ui.utils.lerp
@@ -227,7 +227,7 @@ private fun CourseDescriptionBody(course: Course) {
             .padding(horizontal = 16.dp)
     )
     Spacer(modifier = Modifier.preferredHeight(16.dp))
-    ProvideEmphasis(EmphasisAmbient.current.medium) {
+    ProvideEmphasis(AmbientEmphasisLevels.current.medium) {
         Text(
             text = stringResource(id = R.string.course_desc),
             style = MaterialTheme.typography.body1,
@@ -246,7 +246,7 @@ private fun CourseDescriptionBody(course: Course) {
             .fillMaxWidth()
             .padding(16.dp)
     )
-    ProvideEmphasis(EmphasisAmbient.current.medium) {
+    ProvideEmphasis(AmbientEmphasisLevels.current.medium) {
         Text(
             text = stringResource(id = R.string.needs),
             style = MaterialTheme.typography.body1,
@@ -320,7 +320,7 @@ private fun LessonsSheet(
 ) {
     // Use the fraction that the sheet is open to drive the transformation from FAB -> Sheet
     val fabSize = with(DensityAmbient.current) { FabSize.toPx() }
-    val fabSheetHeight = fabSize + InsetsAmbient.current.systemBars.bottom
+    val fabSheetHeight = fabSize + AmbientInsets.current.systemBars.bottom
     val offsetX = lerp(width - fabSize, 0f, 0f, 0.15f, openFraction)
     val offsetY = lerp(height - fabSheetHeight, 0f, openFraction)
     val tlCorner = lerp(fabSize, 0f, 0f, 0.15f, openFraction)
@@ -388,7 +388,7 @@ private fun Lessons(
             }
             ScrollableColumn(
                 scrollState = scroll,
-                contentPadding = InsetsAmbient.current.systemBars.toPaddingValues(
+                contentPadding = AmbientInsets.current.systemBars.toPaddingValues(
                     top = false
                 )
             ) {
@@ -442,7 +442,7 @@ private fun Lesson(lesson: Lesson) {
                 maxLines = 2,
                 overflow = TextOverflow.Ellipsis
             )
-            ProvideEmphasis(EmphasisAmbient.current.medium) {
+            ProvideEmphasis(AmbientEmphasisLevels.current.medium) {
                 Row(
                     modifier = Modifier.padding(top = 4.dp),
                     verticalAlignment = Alignment.CenterVertically

Owl/app/src/main/java/com/example/owl/ui/courses/Courses.kt

@@ -18,10 +18,10 @@ package com.example.owl.ui.courses
 
 import androidx.annotation.DrawableRes
 import androidx.annotation.StringRes
+import androidx.compose.foundation.AmbientContentColor
 import androidx.compose.foundation.Icon
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.Text
-import androidx.compose.foundation.contentColor
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.preferredHeight
 import androidx.compose.material.BottomNavigation
@@ -67,7 +67,7 @@ fun Courses(selectCourse: (Long) -> Unit) {
                             onClick = { setSelectedTab(tab) },
                             alwaysShowLabels = false,
                             selectedContentColor = MaterialTheme.colors.secondary,
-                            unselectedContentColor = contentColor(),
+                            unselectedContentColor = AmbientContentColor.current,
                             modifier = Modifier.navigationBarsPadding()
                         )
                     }

Owl/app/src/main/java/com/example/owl/ui/courses/MyCourses.kt

@@ -16,13 +16,13 @@
 
 package com.example.owl.ui.courses
 
-import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.preferredHeight
 import androidx.compose.foundation.layout.preferredWidth
-import androidx.compose.foundation.lazy.LazyColumnFor
+import androidx.compose.foundation.lazy.ExperimentalLazyDsl
+import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
@@ -32,30 +32,36 @@ import com.example.owl.model.Course
 import com.example.owl.model.courses
 import com.example.owl.ui.common.CourseListItem
 import com.example.owl.ui.theme.BlueTheme
-import com.example.owl.ui.utils.statusBarsPadding
+import com.example.owl.ui.utils.statusBarsHeight
 
+@OptIn(ExperimentalLazyDsl::class)
 @Composable
 fun MyCourses(
     courses: List<Course>,
     selectCourse: (Long) -> Unit,
     modifier: Modifier = Modifier
 ) {
-    Column(modifier = modifier.statusBarsPadding()) {
-        // TODO appbar should scroll out
-        CoursesAppBar()
-        LazyColumnFor(courses) { course ->
-            MyCourse(course, selectCourse)
+    LazyColumn(modifier) {
+        item {
+            Spacer(Modifier.statusBarsHeight())
+        }
+        item {
+            CoursesAppBar()
+        }
+        itemsIndexed(courses) { index, course ->
+            MyCourse(course, index, selectCourse)
         }
     }
 }
 
 @Composable
 fun MyCourse(
     course: Course,
+    index: Int,
     selectCourse: (Long) -> Unit
 ) {
     Row(modifier = Modifier.padding(bottom = 8.dp)) {
-        val stagger = if (course.id % 2L == 0L) 72.dp else 16.dp
+        val stagger = if (index % 2 == 0) 72.dp else 16.dp
         Spacer(modifier = Modifier.preferredWidth(stagger))
         CourseListItem(
             course = course,

Owl/app/src/main/java/com/example/owl/ui/courses/SearchCourses.kt

@@ -25,6 +25,7 @@ import androidx.compose.foundation.Text
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.wrapContentWidth
 import androidx.compose.material.IconButton
 import androidx.compose.material.MaterialTheme
 import androidx.compose.material.TopAppBar
@@ -67,6 +68,7 @@ fun SearchCourses(
                         end = 16.dp,
                         bottom = 8.dp
                     )
+                    .wrapContentWidth(Alignment.Start)
             )
         }
     }

Owl/app/src/main/java/com/example/owl/ui/onboarding/Onboarding.kt

@@ -38,7 +38,7 @@ import androidx.compose.foundation.layout.wrapContentHeight
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.selection.toggleable
 import androidx.compose.foundation.shape.CornerSize
-import androidx.compose.material.EmphasisAmbient
+import androidx.compose.material.AmbientEmphasisLevels
 import androidx.compose.material.FloatingActionButton
 import androidx.compose.material.IconButton
 import androidx.compose.material.MaterialTheme
@@ -94,7 +94,7 @@ fun Onboarding(onboardingComplete: () -> Unit) {
                     .navigationBarsPadding()
                     .padding(innerPadding)
             ) {
-                ProvideEmphasis(EmphasisAmbient.current.high) {
+                ProvideEmphasis(AmbientEmphasisLevels.current.high) {
                     Text(
                         text = stringResource(R.string.choose_topics_that_interest_you),
                         style = MaterialTheme.typography.h4,
@@ -129,7 +129,7 @@ private fun AppBar() {
             asset = vectorResource(id = OwlTheme.images.lockupLogo),
             modifier = Modifier.padding(16.dp)
         )
-        ProvideEmphasis(emphasis = EmphasisAmbient.current.high) {
+        ProvideEmphasis(emphasis = AmbientEmphasisLevels.current.high) {
             IconButton(
                 modifier = Modifier.padding(16.dp),
                 onClick = { /* todo */ }
@@ -221,7 +221,7 @@ private fun TopicChip(topic: Topic) {
                     )
                 )
                 Row(verticalAlignment = Alignment.CenterVertically) {
-                    ProvideEmphasis(emphasis = EmphasisAmbient.current.medium) {
+                    ProvideEmphasis(emphasis = AmbientEmphasisLevels.current.medium) {
                         Icon(
                             asset = vectorResource(R.drawable.ic_grain),
                             modifier = Modifier

Owl/app/src/main/java/com/example/owl/ui/theme/Elevation.kt → Owl/app/src/main/java/com/example/owl/ui/theme/Elevations.kt

@@ -25,6 +25,6 @@ import androidx.compose.ui.unit.dp
  * Elevation values that can be themed.
  */
 @Immutable
-data class Elevation(val card: Dp = 0.dp)
+data class Elevations(val card: Dp = 0.dp)
 
-internal val ElevationAmbient = staticAmbientOf { Elevation() }
+internal val AmbientElevations = staticAmbientOf { Elevations() }

Owl/app/src/main/java/com/example/owl/ui/theme/Images.kt

@@ -26,4 +26,4 @@ import androidx.compose.runtime.staticAmbientOf
 @Immutable
 data class Images(@DrawableRes val lockupLogo: Int)
 
-internal val ImageAmbient = staticAmbientOf<Images>()
+internal val AmbientImages = staticAmbientOf<Images>()

Owl/app/src/main/java/com/example/owl/ui/theme/Theme.kt

@@ -110,9 +110,9 @@ fun PinkTheme(
     OwlTheme(darkTheme, colors, content)
 }
 
-private val LightElevation = Elevation()
+private val LightElevation = Elevations()
 
-private val DarkElevation = Elevation(card = 1.dp)
+private val DarkElevation = Elevations(card = 1.dp)
 
 private val LightImages = Images(lockupLogo = R.drawable.ic_lockup_blue)
 
@@ -127,8 +127,8 @@ private fun OwlTheme(
     val elevation = if (darkTheme) DarkElevation else LightElevation
     val images = if (darkTheme) DarkImages else LightImages
     Providers(
-        ElevationAmbient provides elevation,
-        ImageAmbient provides images
+        AmbientElevations provides elevation,
+        AmbientImages provides images
     ) {
         MaterialTheme(
             colors = colors,
@@ -140,7 +140,7 @@ private fun OwlTheme(
 }
 
 /**
- * Alternate to [MaterialTheme] allowing us to add our own theme systems (e.g. [Elevation]) or to
+ * Alternate to [MaterialTheme] allowing us to add our own theme systems (e.g. [Elevations]) or to
  * extend [MaterialTheme]'s types e.g. return our own [Colors] extension
  */
 object OwlTheme {
@@ -167,16 +167,16 @@ object OwlTheme {
         get() = MaterialTheme.shapes
 
     /**
-     * Retrieves the current [Elevation] at the call site's position in the hierarchy.
+     * Retrieves the current [Elevations] at the call site's position in the hierarchy.
      */
     @Composable
-    val elevations: Elevation
-        get() = ElevationAmbient.current
+    val elevations: Elevations
+        get() = AmbientElevations.current
 
     /**
      * Retrieves the current [Images] at the call site's position in the hierarchy.
      */
     @Composable
     val images: Images
-        get() = ImageAmbient.current
+        get() = AmbientImages.current
 }

Owl/app/src/main/java/com/example/owl/ui/utils/Insets.kt

@@ -118,10 +118,10 @@ class Insets {
         internal set
 }
 
-val InsetsAmbient = staticAmbientOf { DisplayInsets() }
+val AmbientInsets = staticAmbientOf { DisplayInsets() }
 
 /**
- * Applies any [WindowInsetsCompat] values to [InsetsAmbient], which are then available
+ * Applies any [WindowInsetsCompat] values to [AmbientInsets], which are then available
  * within [content].
  *
  * @param consumeWindowInsets Whether to consume any [WindowInsetsCompat]s which are dispatched to
@@ -165,7 +165,7 @@ fun ProvideDisplayInsets(
         }
     }
 
-    Providers(InsetsAmbient provides displayInsets) {
+    Providers(AmbientInsets provides displayInsets) {
         content()
     }
 }
@@ -192,7 +192,7 @@ private fun Insets.updateFrom(windowInsets: WindowInsetsCompat, type: Int) {
  */
 fun Modifier.systemBarsPadding(enabled: Boolean = true) = composed {
     insetsPadding(
-        insets = InsetsAmbient.current.systemBars,
+        insets = AmbientInsets.current.systemBars,
         left = enabled,
         top = enabled,
         right = enabled,
@@ -205,7 +205,7 @@ fun Modifier.systemBarsPadding(enabled: Boolean = true) = composed {
  * of the content.
  */
 fun Modifier.statusBarsPadding() = composed {
-    insetsPadding(insets = InsetsAmbient.current.statusBars, top = true)
+    insetsPadding(insets = AmbientInsets.current.statusBars, top = true)
 }
 
 /**
@@ -226,7 +226,7 @@ fun Modifier.navigationBarsPadding(
     right: Boolean = true
 ) = composed {
     insetsPadding(
-        insets = InsetsAmbient.current.navigationBars,
+        insets = AmbientInsets.current.navigationBars,
         left = left,
         right = right,
         bottom = bottom
@@ -260,7 +260,7 @@ fun Modifier.navigationBarsPadding(
  */
 fun Modifier.statusBarsHeight(additional: Dp = 0.dp) = composed {
     InsetsSizeModifier(
-        insets = InsetsAmbient.current.statusBars,
+        insets = AmbientInsets.current.statusBars,
         heightSide = VerticalSide.Top,
         additionalHeight = additional
     )
@@ -312,7 +312,7 @@ inline fun Modifier.statusBarsHeight() = statusBarsHeightPlus(0.dp)
  */
 fun Modifier.statusBarsHeightPlus(additional: Dp) = composed {
     InsetsSizeModifier(
-        insets = InsetsAmbient.current.statusBars,
+        insets = AmbientInsets.current.statusBars,
         heightSide = VerticalSide.Top,
         additionalHeight = additional
     )
@@ -364,7 +364,7 @@ inline fun Modifier.navigationBarsHeight() = navigationBarsHeightPlus(0.dp)
  */
 fun Modifier.navigationBarsHeightPlus(additional: Dp) = composed {
     InsetsSizeModifier(
-        insets = InsetsAmbient.current.navigationBars,
+        insets = AmbientInsets.current.navigationBars,
         heightSide = VerticalSide.Bottom,
         additionalHeight = additional
     )
@@ -418,7 +418,7 @@ fun Modifier.navigationBarsWidthPlus(
     additional: Dp
 ) = composed {
     InsetsSizeModifier(
-        insets = InsetsAmbient.current.navigationBars,
+        insets = AmbientInsets.current.navigationBars,
         widthSide = side,
         additionalWidth = additional
     )