"Updates" widget for Galaxy Z Flip5 cover screen (#9892)

presentation-widget/src/main/java/tachiyomi/presentation/widget/BaseUpdatesGridGlanceWidget.kt

@@ -0,0 +1,153 @@
+package tachiyomi.presentation.widget
+
+import android.app.Application
+import android.content.Context
+import android.graphics.Bitmap
+import android.os.Build
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
+import androidx.compose.ui.unit.Dp
+import androidx.core.graphics.drawable.toBitmap
+import androidx.glance.GlanceId
+import androidx.glance.GlanceModifier
+import androidx.glance.ImageProvider
+import androidx.glance.appwidget.GlanceAppWidget
+import androidx.glance.appwidget.GlanceAppWidgetManager
+import androidx.glance.appwidget.SizeMode
+import androidx.glance.appwidget.appWidgetBackground
+import androidx.glance.appwidget.provideContent
+import androidx.glance.background
+import androidx.glance.layout.fillMaxSize
+import androidx.glance.layout.padding
+import androidx.glance.unit.ColorProvider
+import coil.executeBlocking
+import coil.imageLoader
+import coil.request.CachePolicy
+import coil.request.ImageRequest
+import coil.size.Precision
+import coil.size.Scale
+import coil.transform.RoundedCornersTransformation
+import eu.kanade.tachiyomi.core.security.SecurityPreferences
+import eu.kanade.tachiyomi.util.system.dpToPx
+import kotlinx.coroutines.flow.map
+import tachiyomi.core.util.lang.withIOContext
+import tachiyomi.domain.manga.model.MangaCover
+import tachiyomi.domain.updates.interactor.GetUpdates
+import tachiyomi.domain.updates.model.UpdatesWithRelations
+import tachiyomi.presentation.widget.components.CoverHeight
+import tachiyomi.presentation.widget.components.CoverWidth
+import tachiyomi.presentation.widget.components.LockedWidget
+import tachiyomi.presentation.widget.components.UpdatesWidget
+import tachiyomi.presentation.widget.util.appWidgetBackgroundRadius
+import tachiyomi.presentation.widget.util.calculateRowAndColumnCount
+import uy.kohesive.injekt.Injekt
+import uy.kohesive.injekt.api.get
+import java.util.Calendar
+import java.util.Date
+
+abstract class BaseUpdatesGridGlanceWidget(
+    private val context: Context = Injekt.get<Application>(),
+    private val getUpdates: GetUpdates = Injekt.get(),
+    private val preferences: SecurityPreferences = Injekt.get(),
+) : GlanceAppWidget() {
+
+    override val sizeMode = SizeMode.Exact
+
+    abstract val foreground: ColorProvider
+    abstract val background: ImageProvider
+    abstract val topPadding: Dp
+    abstract val bottomPadding: Dp
+
+    override suspend fun provideGlance(context: Context, id: GlanceId) {
+        val locked = preferences.useAuthenticator().get()
+        val containerModifier = GlanceModifier
+            .fillMaxSize()
+            .background(background)
+            .appWidgetBackground()
+            .padding(top = topPadding, bottom = bottomPadding)
+            .appWidgetBackgroundRadius()
+
+        val manager = GlanceAppWidgetManager(context)
+        val ids = manager.getGlanceIds(javaClass)
+        val (rowCount, columnCount) = ids
+            .flatMap { manager.getAppWidgetSizes(it) }
+            .maxBy { it.height.value * it.width.value }
+            .calculateRowAndColumnCount(topPadding, bottomPadding)
+
+        provideContent {
+            // If app lock enabled, don't do anything
+            if (locked) {
+                LockedWidget(
+                    foreground = foreground,
+                    modifier = containerModifier,
+                )
+                return@provideContent
+            }
+
+            val flow = remember {
+                getUpdates
+                    .subscribe(false, DateLimit.timeInMillis)
+                    .map { rawData ->
+                        rawData.prepareData(rowCount, columnCount)
+                    }
+            }
+            val data by flow.collectAsState(initial = null)
+            UpdatesWidget(
+                data = data,
+                modifier = containerModifier,
+                contentColor = foreground,
+                topPadding = topPadding,
+                bottomPadding = bottomPadding,
+            )
+        }
+    }
+
+    private suspend fun List<UpdatesWithRelations>.prepareData(
+        rowCount: Int,
+        columnCount: Int,
+    ): List<Pair<Long, Bitmap?>> {
+        // Resize to cover size
+        val widthPx = CoverWidth.value.toInt().dpToPx
+        val heightPx = CoverHeight.value.toInt().dpToPx
+        val roundPx = context.resources.getDimension(R.dimen.appwidget_inner_radius)
+        return withIOContext {
+            this@prepareData
+                .distinctBy { it.mangaId }
+                .take(rowCount * columnCount)
+                .map { updatesView ->
+                    val request = ImageRequest.Builder(context)
+                        .data(
+                            MangaCover(
+                                mangaId = updatesView.mangaId,
+                                sourceId = updatesView.sourceId,
+                                isMangaFavorite = true,
+                                url = updatesView.coverData.url,
+                                lastModified = updatesView.coverData.lastModified,
+                            ),
+                        )
+                        .memoryCachePolicy(CachePolicy.DISABLED)
+                        .precision(Precision.EXACT)
+                        .size(widthPx, heightPx)
+                        .scale(Scale.FILL)
+                        .let {
+                            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.S) {
+                                it.transformations(RoundedCornersTransformation(roundPx))
+                            } else {
+                                it // Handled by system
+                            }
+                        }
+                        .build()
+                    Pair(updatesView.mangaId, context.imageLoader.executeBlocking(request).drawable?.toBitmap())
+                }
+        }
+    }
+
+    companion object {
+        val DateLimit: Calendar
+            get() = Calendar.getInstance().apply {
+                time = Date()
+                add(Calendar.MONTH, -3)
+            }
+    }
+}