Support Android 11 Conversation features

Instead of only favorite rooms having shortcuts, all rooms now have
shortcuts and they are ranked according to favorite/normal/low-priority
status.

vector/src/main/java/im/vector/app/features/home/ShortcutCreator.kt

@@ -17,6 +17,7 @@
 package im.vector.app.features.home
 
 import android.content.Context
+import android.content.pm.ShortcutInfo
 import android.graphics.Bitmap
 import android.os.Build
 import androidx.annotation.WorkerThread
@@ -67,9 +68,12 @@ class ShortcutCreator @Inject constructor(
                 .setShortLabel(roomSummary.displayName)
                 .setIcon(bitmap?.toProfileImageIcon())
                 .setIntent(intent)
+                .setLongLived(true)
 
                 // Make it show up in the direct share menu
-                .setCategories(setOf(directShareCategory))
+                .setCategories(setOf(
+                        directShareCategory,
+                        ShortcutInfo.SHORTCUT_CATEGORY_CONVERSATION))
 
                 .build()
     }

vector/src/main/java/im/vector/app/features/home/ShortcutsHandler.kt

@@ -24,7 +24,6 @@ import androidx.core.content.pm.ShortcutManagerCompat
 import im.vector.app.core.di.ActiveSessionHolder
 import io.reactivex.disposables.Disposable
 import io.reactivex.disposables.Disposables
-import org.matrix.android.sdk.api.query.RoomTagQueryFilter
 import org.matrix.android.sdk.api.session.room.model.Membership
 import org.matrix.android.sdk.api.session.room.roomSummaryQueryParams
 import org.matrix.android.sdk.rx.asObservable
@@ -46,17 +45,23 @@ class ShortcutsHandler @Inject constructor(
                 ?.getPagedRoomSummariesLive(
                         roomSummaryQueryParams {
                             memberships = listOf(Membership.JOIN)
-                            roomTagQueryFilter = RoomTagQueryFilter(isFavorite = true, null, null)
                         }
                 )
                 ?.asObservable()
                 ?.subscribe { rooms ->
                     val shortcuts = rooms
-                            .take(n = 4) // Android only allows us to create 4 shortcuts
+                            .sortedBy { room ->
+                                // pushDynamicShortcut adds each shortcut to the top of the shortcut ranking,
+                                // so higher priority rooms should be at the end of this list to get pushed on last.
+                                if (room.isFavorite) 2
+                                else if (room.isLowPriority) 0
+                                else 1
+                            }
                             .map { shortcutCreator.create(it) }
 
-                    ShortcutManagerCompat.removeAllDynamicShortcuts(context)
-                    ShortcutManagerCompat.addDynamicShortcuts(context, shortcuts)
+                    shortcuts.forEach { shortcut ->
+                        ShortcutManagerCompat.pushDynamicShortcut(context, shortcut)
+                    }
                 }
                 ?: Disposables.empty()
     }

vector/src/main/java/im/vector/app/features/notifications/NotificationUtils.kt

@@ -550,6 +550,9 @@ class NotificationUtils @Inject constructor(private val context: Context,
                 // that can be displayed in not disturb mode if white listed (the later will need compat28.x)
                 .setCategory(NotificationCompat.CATEGORY_MESSAGE)
 
+                // ID of the corresponding shortcut, for conversation features under API 30+
+                .setShortcutId(roomInfo.roomId)
+
                 // Title for API < 16 devices.
                 .setContentTitle(roomInfo.roomDisplayName)
                 // Content for API < 16 devices.