commit 7517b5dcce8dde3a22177857b8fff6439fd98d82
author Lucas Dupin <dupin@google.com> Tue Aug 22 12:51:25 2017 -0700
committer Lucas Dupin <dupin@google.com> Mon Dec 18 11:28:16 2017 -0800
tree 900e0ee61f60bdae4980648e1c73ca45c140fb48
parent 53b2d749240f8c689b04155a960b75c40c00aba8

Support wallpapers in AoD

Such wallpaper has to define supportsAmbientMode,
and set it to true on its android.service.wallpaper
meta data.

Also introduces WallpaperService.Engine#onAmbientModeChanged
to notify a live wallpaper that the display state has changed.

Change-Id: I49e846069a698b3cc3bb6e7cda98172920eaae4c
Bug: 64155983
Test: runtest -x frameworks/base/packages/SystemUI/tests/src/com/android/systemui/doze/DozeWallpaperStateTest.java
Test: runtest -x frameworks/base/tests/Internal/src/android/app/WallpaperInfoTest.java
Test: runtest -x frameworks/base/tests/Internal/src/android/service/wallpaper/WallpaperServiceTest.java
Test: set AoD wallpaper, go to aod, lock screen, launcher
Test: set regular wallpaper, go to aod, lock screen, launcher

packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowManager.java

diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowManager.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowManager.java
index b0b5b8e..47be4d0 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowManager.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowManager.java
@@ -54,6 +54,7 @@
     private final Context mContext;
     private final WindowManager mWindowManager;
     private final IActivityManager mActivityManager;
+    private final DozeParameters mDozeParameters;
     private View mStatusBarView;
     private WindowManager.LayoutParams mLp;
     private WindowManager.LayoutParams mLpChanged;
@@ -70,8 +71,8 @@
         mWindowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
         mActivityManager = ActivityManager.getService();
         mKeyguardScreenRotation = shouldEnableKeyguardScreenRotation();
-        mScreenBrightnessDoze = mContext.getResources().getInteger(
-                com.android.internal.R.integer.config_screenBrightnessDoze) / 255f;
+        mDozeParameters = new DozeParameters(mContext);
+        mScreenBrightnessDoze = mDozeParameters.getScreenBrightnessDoze();
     }
 
     private boolean shouldEnableKeyguardScreenRotation() {
@@ -136,7 +137,10 @@
             mLpChanged.privateFlags &= ~WindowManager.LayoutParams.PRIVATE_FLAG_KEYGUARD;
         }
 
-        if (state.keyguardShowing && !state.backdropShowing && !state.dozing) {
+        final boolean showWallpaperOnAod = mDozeParameters.getAlwaysOn() &&
+                state.wallpaperSupportsAmbientMode;
+        if (state.keyguardShowing && !state.backdropShowing &&
+                (!state.dozing || showWallpaperOnAod)) {
             mLpChanged.flags |= WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER;
         } else {
             mLpChanged.flags &= ~WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER;
@@ -346,6 +350,11 @@
         apply(mCurrentState);
     }
 
+    public void setWallpaperSupportsAmbientMode(boolean supportsAmbientMode) {
+        mCurrentState.wallpaperSupportsAmbientMode = supportsAmbientMode;
+        apply(mCurrentState);
+    }
+
     /**
      * @param state The {@link StatusBarState} of the status bar.
      */
@@ -433,6 +442,7 @@
         boolean forceDozeBrightness;
         boolean forceUserActivity;
         boolean backdropShowing;
+        boolean wallpaperSupportsAmbientMode;
 
         /**
          * The {@link StatusBar} state from the status bar.