Initial changes to support blur

- Add a new controller to update the background blur on either the
  launcher or app surfaces based on state or transition

Bug: 149792636

Change-Id: I6103cd3d53a00c8025558dd49bb73137e2980014

1 files changed, 57 insertions, 0 deletions

diff --git a/src_ui_overrides/com/android/launcher3/uioverrides/BackgroundBlurController.java b/src_ui_overrides/com/android/launcher3/uioverrides/BackgroundBlurController.java
new file mode 100644
index 0000000000..232bad3be7
--- /dev/null
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/BackgroundBlurController.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2020 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.launcher3.uioverrides;
+
+
+import android.util.IntProperty;
+import android.view.View;
+import com.android.launcher3.Launcher;
+import com.android.launcher3.LauncherState;
+import com.android.launcher3.LauncherStateManager;
+import com.android.launcher3.anim.AnimatorSetBuilder;
+
+/**
+ * Controls the blur, for the Launcher surface only.
+ */
+public class BackgroundBlurController implements LauncherStateManager.StateHandler {
+
+    public static final IntProperty<BackgroundBlurController> BACKGROUND_BLUR =
+            new IntProperty<BackgroundBlurController>("backgroundBlur") {
+                @Override
+                public void setValue(BackgroundBlurController blurController, int blurRadius) {}
+
+                @Override
+                public Integer get(BackgroundBlurController blurController) {
+                    return 0;
+                }
+            };
+
+    public BackgroundBlurController(Launcher l) {}
+
+    public int getFolderBackgroundBlurAdjustment() {
+        return 0;
+    }
+
+    public void setSurfaceToLauncher(View v) {}
+
+    @Override
+    public void setState(LauncherState toState) {}
+
+    @Override
+    public void setStateWithAnimation(LauncherState toState, AnimatorSetBuilder builder,
+            LauncherStateManager.AnimationConfig config) {}
+}