Makes Launcher hide the all apps content and scrim on assistant visible.

This hides the quick search bar and the suggested apps. Visibility is
unchanged when the all apps view is fully expanded.

Test: Tested locally
Change-Id: I6bc453b5ad89ca3d1280957e595bf2a3f074a72d
BUG:129755311
FIX:129755311
(cherry picked from commit 917af755e42a03cdc43ed1c5f897f585f2041725)

1 files changed, 47 insertions, 9 deletions

diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 0c3556661..fff8f02fb 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -24,6 +24,8 @@ import static com.android.launcher3.AbstractFloatingView.TYPE_SNACKBAR;
 import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_EXIT_DELAY;
 import static com.android.launcher3.LauncherState.ALL_APPS;
 import static com.android.launcher3.LauncherState.NORMAL;
+import static com.android.launcher3.LauncherState.OVERVIEW;
+import static com.android.launcher3.LauncherState.OVERVIEW_PEEK;
 import static com.android.launcher3.dragndrop.DragLayer.ALPHA_INDEX_LAUNCHER_LOAD;
 import static com.android.launcher3.logging.LoggerUtils.newContainerTarget;
 import static com.android.launcher3.logging.LoggerUtils.newTarget;
@@ -128,6 +130,7 @@ import com.android.launcher3.util.UiThreadHelper;
 import com.android.launcher3.util.ViewOnDrawExecutor;
 import com.android.launcher3.views.ActivityContext;
 import com.android.launcher3.views.OptionsPopupView;
+import com.android.launcher3.views.ScrimView;
 import com.android.launcher3.widget.LauncherAppWidgetHostView;
 import com.android.launcher3.widget.PendingAddShortcutInfo;
 import com.android.launcher3.widget.PendingAddWidgetInfo;
@@ -147,6 +150,7 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.function.Predicate;
 
+import androidx.annotation.IdRes;
 import androidx.annotation.Nullable;
 
 /**
@@ -202,6 +206,9 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
     private static final int NEW_APPS_ANIMATION_INACTIVE_TIMEOUT_SECONDS = 5;
     @Thunk static final int NEW_APPS_ANIMATION_DELAY = 500;
 
+    private static final int APPS_VIEW_ALPHA_CHANNEL_INDEX = 1;
+    private static final int SCRIM_VIEW_ALPHA_CHANNEL_INDEX = 0;
+
     private LauncherAppTransitionManager mAppTransitionManager;
     private Configuration mOldConfig;
 
@@ -223,6 +230,9 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
     @Thunk AllAppsContainerView mAppsView;
     AllAppsTransitionController mAllAppsController;
 
+    // Scrim view for the all apps and overview state.
+    @Thunk ScrimView mScrimView;
+
     // UI and state for the overview panel
     private View mOverviewPanel;
 
@@ -261,6 +271,8 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
     final Handler mHandler = new Handler();
     private final Runnable mHandleDeferredResume = this::handleDeferredResume;
 
+    private float mCurrentAssistantVisibility = 0f;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         RaceConditionTracker.onEvent(ON_CREATE_EVT, ENTER);
@@ -361,6 +373,24 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
 
         TraceHelper.endSection("Launcher-onCreate");
         RaceConditionTracker.onEvent(ON_CREATE_EVT, EXIT);
+        mStateManager.addStateListener(new LauncherStateManager.StateListener() {
+            @Override
+            public void onStateTransitionStart(LauncherState toState) {}
+
+            @Override
+            public void onStateTransitionComplete(LauncherState finalState) {
+                float alpha = 1f - mCurrentAssistantVisibility;
+                if (finalState == NORMAL) {
+                    mAppsView.getAlphaProperty(APPS_VIEW_ALPHA_CHANNEL_INDEX).setValue(alpha);
+                } else if (finalState == OVERVIEW || finalState == OVERVIEW_PEEK) {
+                    mAppsView.getAlphaProperty(APPS_VIEW_ALPHA_CHANNEL_INDEX).setValue(alpha);
+                    mScrimView.getAlphaProperty(SCRIM_VIEW_ALPHA_CHANNEL_INDEX).setValue(alpha);
+                } else {
+                    mAppsView.getAlphaProperty(APPS_VIEW_ALPHA_CHANNEL_INDEX).setValue(1f);
+                    mScrimView.getAlphaProperty(SCRIM_VIEW_ALPHA_CHANNEL_INDEX).setValue(1f);
+                }
+            }
+        });
     }
 
     @Override
@@ -407,13 +437,6 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
         onIdpChanged(idp);
     }
 
-    public void setQuickSearchBarAlpha(float alpha) {
-        View qsbAllApps = findViewById(R.id.search_container_all_apps);
-        if (qsbAllApps != null) {
-            qsbAllApps.setAlpha(alpha);
-        }
-    }
-
     private void onIdpChanged(InvariantDeviceProfile idp) {
         mUserEventDispatcher = null;
 
@@ -426,6 +449,18 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
         rebindModel();
     }
 
+    public void onAssistantVisibilityChanged(float visibility) {
+        mCurrentAssistantVisibility = visibility;
+        float alpha = 1f - visibility;
+        LauncherState state = mStateManager.getState();
+        if (state == NORMAL) {
+            mAppsView.getAlphaProperty(APPS_VIEW_ALPHA_CHANNEL_INDEX).setValue(alpha);
+        } else if (state == OVERVIEW || state == OVERVIEW_PEEK) {
+            mAppsView.getAlphaProperty(APPS_VIEW_ALPHA_CHANNEL_INDEX).setValue(alpha);
+            mScrimView.getAlphaProperty(SCRIM_VIEW_ALPHA_CHANNEL_INDEX).setValue(alpha);
+        }
+    }
+
     private void initDeviceProfile(InvariantDeviceProfile idp) {
         // Load configuration-specific DeviceProfile
         mDeviceProfile = idp.getDeviceProfile(this);
@@ -968,6 +1003,9 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
         // Setup Apps
         mAppsView = findViewById(R.id.apps_view);
 
+        // Setup Scrim
+        mScrimView = findViewById(R.id.scrim_view);
+
         // Setup the drag controller (drop targets have to be added in reverse order in priority)
         mDragController.setMoveTarget(mWorkspace);
         mDropTargetBar.setup(mDragController);
@@ -1639,7 +1677,7 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
     public int getCurrentState() {
         if(mStateManager.getState() == LauncherState.ALL_APPS) {
             return StatsLogUtils.LAUNCHER_STATE_ALLAPPS;
-        } else if (mStateManager.getState() == LauncherState.OVERVIEW) {
+        } else if (mStateManager.getState() == OVERVIEW) {
             return StatsLogUtils.LAUNCHER_STATE_OVERVIEW;
         }
         return StatsLogUtils.LAUNCHER_STATE_HOME;
@@ -1657,7 +1695,7 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
             LauncherState state = mStateManager.getState();
             if (state == LauncherState.ALL_APPS) {
                 event.srcTarget[2].containerType = ContainerType.ALLAPPS;
-            } else if (state == LauncherState.OVERVIEW) {
+            } else if (state == OVERVIEW) {
                 event.srcTarget[2].containerType = ContainerType.TASKSWITCHER;
             }
         }