From dc0eca6cd201004f378694b672139332227ef4a7 Mon Sep 17 00:00:00 2001
From: Winson Chung <winsonc@google.com>
Date: Thu, 13 Jun 2019 22:37:31 -0700
Subject: Remove dependency on OverviewProxyService from
 StatusBarWindowController

Bug: 134712444
Test: atest SystemUITests
Change-Id: Ifd6ac77670c408da74a7278e8da5868e78a6a068
Merged-In: Ifd6ac77670c408da74a7278e8da5868e78a6a068
---
 .../systemui/recents/OverviewProxyService.java     | 22 ++++++++++-
 .../statusbar/phone/StatusBarWindowCallback.java   | 20 ++++++++++
 .../statusbar/phone/StatusBarWindowController.java | 46 ++++++++++++++--------
 3 files changed, 70 insertions(+), 18 deletions(-)
 create mode 100644 packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowCallback.java

diff --git a/packages/SystemUI/src/com/android/systemui/recents/OverviewProxyService.java b/packages/SystemUI/src/com/android/systemui/recents/OverviewProxyService.java
index 88a8b31dc361..b4299fd760fd 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/OverviewProxyService.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/OverviewProxyService.java
@@ -27,6 +27,9 @@ import static com.android.systemui.shared.system.QuickStepContract.KEY_EXTRA_INP
 import static com.android.systemui.shared.system.QuickStepContract.KEY_EXTRA_SUPPORTS_WINDOW_CORNERS;
 import static com.android.systemui.shared.system.QuickStepContract.KEY_EXTRA_SYSUI_PROXY;
 import static com.android.systemui.shared.system.QuickStepContract.KEY_EXTRA_WINDOW_CORNER_RADIUS;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_BOUNCER_SHOWING;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING_OCCLUDED;
 
 import android.annotation.FloatRange;
 import android.app.ActivityTaskManager;
@@ -67,6 +70,7 @@ import com.android.systemui.statusbar.phone.NavigationBarFragment;
 import com.android.systemui.statusbar.phone.NavigationBarView;
 import com.android.systemui.statusbar.phone.NavigationModeController;
 import com.android.systemui.statusbar.phone.StatusBar;
+import com.android.systemui.statusbar.phone.StatusBarWindowCallback;
 import com.android.systemui.statusbar.phone.StatusBarWindowController;
 import com.android.systemui.statusbar.policy.CallbackController;
 import com.android.systemui.statusbar.policy.DeviceProvisionedController;
@@ -90,7 +94,6 @@ public class OverviewProxyService implements CallbackController<OverviewProxyLis
     private static final String ACTION_QUICKSTEP = "android.intent.action.QUICKSTEP_SERVICE";
 
     public static final String TAG_OPS = "OverviewProxyService";
-    public static final boolean DEBUG_OVERVIEW_PROXY = false;
     private static final long BACKOFF_MILLIS = 1000;
     private static final long DEFERRED_CALLBACK_MILLIS = 5000;
 
@@ -442,6 +445,8 @@ public class OverviewProxyService implements CallbackController<OverviewProxyLis
         }
     };
 
+    private final StatusBarWindowCallback mStatusBarWindowCallback = this::onStatusBarStateChanged;
+
     // This is the death handler for the binder from the launcher service
     private final IBinder.DeathRecipient mOverviewServiceDeathRcpt
             = this::cleanupAfterDeath;
@@ -481,6 +486,9 @@ public class OverviewProxyService implements CallbackController<OverviewProxyLis
                 PatternMatcher.PATTERN_LITERAL);
         filter.addAction(Intent.ACTION_PACKAGE_CHANGED);
         mContext.registerReceiver(mLauncherStateChangedReceiver, filter);
+
+        // Listen for status bar state changes
+        statusBarWinController.registerCallback(mStatusBarWindowCallback);
     }
 
     public void notifyBackAction(boolean completed, int downX, int downY, boolean isButton,
@@ -531,7 +539,7 @@ public class OverviewProxyService implements CallbackController<OverviewProxyLis
             navBarView.updateSystemUiStateFlags();
         }
         if (mStatusBarWinController != null) {
-            mStatusBarWinController.updateSystemUiStateFlags();
+            mStatusBarWinController.notifyStateChangedCallbacks();
         }
         notifySystemUiStateFlags(mSysUiStateFlags);
     }
@@ -546,6 +554,16 @@ public class OverviewProxyService implements CallbackController<OverviewProxyLis
         }
     }
 
+    private void onStatusBarStateChanged(boolean keyguardShowing, boolean keyguardOccluded,
+            boolean bouncerShowing) {
+        int displayId = mContext.getDisplayId();
+        setSystemUiStateFlag(SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING,
+                keyguardShowing && !keyguardOccluded, displayId);
+        setSystemUiStateFlag(SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING_OCCLUDED,
+                keyguardShowing && keyguardOccluded, displayId);
+        setSystemUiStateFlag(SYSUI_STATE_BOUNCER_SHOWING, bouncerShowing, displayId);
+    }
+
     /**
      * Sets the navbar region which can receive touch inputs
      */
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowCallback.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowCallback.java
new file mode 100644
index 000000000000..f33ff2732cda
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowCallback.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2019 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.systemui.statusbar.phone;
+
+public interface StatusBarWindowCallback {
+    void onStateChanged(boolean keyguardShowing, boolean keyguardOccluded, boolean bouncerShowing);
+}
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowController.java
index a4f495aafda2..e68c18817989 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowController.java
@@ -18,9 +18,6 @@ package com.android.systemui.statusbar.phone;
 
 import static android.view.WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS;
 
-import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_BOUNCER_SHOWING;
-import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING;
-import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING_OCCLUDED;
 import static com.android.systemui.statusbar.NotificationRemoteInputManager.ENABLE_REMOTE_INPUT;
 
 import android.app.ActivityManager;
@@ -47,17 +44,19 @@ import com.android.systemui.colorextraction.SysuiColorExtractor;
 import com.android.systemui.keyguard.KeyguardViewMediator;
 import com.android.systemui.plugins.statusbar.StatusBarStateController;
 import com.android.systemui.plugins.statusbar.StatusBarStateController.StateListener;
-import com.android.systemui.recents.OverviewProxyService;
 import com.android.systemui.statusbar.RemoteInputController.Callback;
 import com.android.systemui.statusbar.StatusBarState;
 import com.android.systemui.statusbar.SysuiStatusBarStateController;
 import com.android.systemui.statusbar.policy.ConfigurationController;
 import com.android.systemui.statusbar.policy.ConfigurationController.ConfigurationListener;
 
+import com.google.android.collect.Lists;
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
+import java.lang.ref.WeakReference;
 import java.lang.reflect.Field;
 
+import java.util.ArrayList;
 import javax.inject.Inject;
 import javax.inject.Singleton;
 
@@ -84,6 +83,8 @@ public class StatusBarWindowController implements Callback, Dumpable, Configurat
     private final State mCurrentState = new State();
     private OtherwisedCollapsedListener mListener;
     private ForcePluginOpenListener mForcePluginOpenListener;
+    private final ArrayList<WeakReference<StatusBarWindowCallback>>
+            mCallbacks = Lists.newArrayList();
 
     private final SysuiColorExtractor mColorExtractor = Dependency.get(SysuiColorExtractor.class);
 
@@ -109,6 +110,19 @@ public class StatusBarWindowController implements Callback, Dumpable, Configurat
         Dependency.get(ConfigurationController.class).addCallback(this);
     }
 
+    /**
+     * Register to receive notifications about status bar window state changes.
+     */
+    public void registerCallback(StatusBarWindowCallback callback) {
+        // Prevent adding duplicate callbacks
+        for (int i = 0; i < mCallbacks.size(); i++) {
+            if (mCallbacks.get(i).get() == callback) {
+                return;
+            }
+        }
+        mCallbacks.add(new WeakReference<StatusBarWindowCallback>(callback));
+    }
+
     private boolean shouldEnableKeyguardScreenRotation() {
         Resources res = mContext.getResources();
         return SystemProperties.getBoolean("lockscreen.rot_override", false)
@@ -319,18 +333,18 @@ public class StatusBarWindowController implements Callback, Dumpable, Configurat
             }
             mHasTopUi = mHasTopUiChanged;
         }
-        updateSystemUiStateFlags();
-    }
-
-    public void updateSystemUiStateFlags() {
-        int displayId = mContext.getDisplayId();
-        OverviewProxyService overviewProxyService = Dependency.get(OverviewProxyService.class);
-        overviewProxyService.setSystemUiStateFlag(SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING,
-                mCurrentState.keyguardShowing && !mCurrentState.keyguardOccluded, displayId);
-        overviewProxyService.setSystemUiStateFlag(SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING_OCCLUDED,
-                mCurrentState.keyguardShowing && mCurrentState.keyguardOccluded, displayId);
-        overviewProxyService.setSystemUiStateFlag(SYSUI_STATE_BOUNCER_SHOWING,
-                mCurrentState.bouncerShowing, displayId);
+        notifyStateChangedCallbacks();
+    }
+
+    public void notifyStateChangedCallbacks() {
+        for (int i = 0; i < mCallbacks.size(); i++) {
+            StatusBarWindowCallback cb = mCallbacks.get(i).get();
+            if (cb != null) {
+                cb.onStateChanged(mCurrentState.keyguardShowing,
+                        mCurrentState.keyguardOccluded,
+                        mCurrentState.bouncerShowing);
+            }
+        }
     }
 
     private void applyForceStatusBarVisibleFlag(State state) {
-- 
cgit v1.2.3-59-g8ed1b