Support scaling with SurfaceControl when using WindowlessWindow APIs
Demo: https://drive.google.com/open?id=1wQ8dT5bfTxSh-NRQpNBwTCkKOtOOUMPj
Bug: 150224413
Test: Manual test on both universal smartspace and wallpaper preview
Change-Id: I604e5a43727035cbeb36f02681fc317fd356268a
diff --git a/packages/SystemUI/shared/src/com/android/systemui/shared/system/SurfaceViewRequestReceiver.java b/packages/SystemUI/shared/src/com/android/systemui/shared/system/SurfaceViewRequestReceiver.java
index 7cfa289..d33c653 100644
--- a/packages/SystemUI/shared/src/com/android/systemui/shared/system/SurfaceViewRequestReceiver.java
+++ b/packages/SystemUI/shared/src/com/android/systemui/shared/system/SurfaceViewRequestReceiver.java
@@ -20,6 +20,7 @@
import android.graphics.PixelFormat;
import android.os.Bundle;
import android.os.IBinder;
+import android.util.Size;
import android.view.SurfaceControl;
import android.view.SurfaceControlViewHost;
import android.view.View;
@@ -43,13 +44,27 @@
mOpacity = opacity;
}
- /** Called whenever a surface view request is received. */
+ /** See {@link #onReceive(Context, Bundle, View, Size)}. */
public void onReceive(Context context, Bundle bundle, View view) {
+ onReceive(context, bundle, view, null);
+ }
+
+ /**
+ * Called whenever a surface view request is received.
+ * @param view the view rendering content, on the receiver end of the surface request.
+ * @param viewSize when {@param viewSize} is not specified, we will use the surface control size
+ * to attach the view to the window.
+ */
+ public void onReceive(Context context, Bundle bundle, View view, Size viewSize) {
if (mSurfaceControlViewHost != null) {
mSurfaceControlViewHost.die();
}
SurfaceControl surfaceControl = SurfaceViewRequestUtils.getSurfaceControl(bundle);
if (surfaceControl != null) {
+ if (viewSize == null) {
+ viewSize = new Size(surfaceControl.getWidth(), surfaceControl.getHeight());
+ }
+
IBinder hostToken = SurfaceViewRequestUtils.getHostToken(bundle);
WindowlessWindowManager windowlessWindowManager =
@@ -59,12 +74,22 @@
context.getDisplayNoVerify(), windowlessWindowManager);
WindowManager.LayoutParams layoutParams =
new WindowManager.LayoutParams(
- surfaceControl.getWidth(),
- surfaceControl.getHeight(),
+ viewSize.getWidth(),
+ viewSize.getHeight(),
WindowManager.LayoutParams.TYPE_APPLICATION,
WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED,
mOpacity);
+ // This aspect scales the view to fit in the surface and centers it
+ final float scale = Math.min(surfaceControl.getWidth() / (float) viewSize.getWidth(),
+ surfaceControl.getHeight() / (float) viewSize.getHeight());
+ view.setScaleX(scale);
+ view.setScaleY(scale);
+ view.setPivotX(0);
+ view.setPivotY(0);
+ view.setTranslationX((surfaceControl.getWidth() - scale * viewSize.getWidth()) / 2);
+ view.setTranslationY((surfaceControl.getHeight() - scale * viewSize.getHeight()) / 2);
+
mSurfaceControlViewHost.addView(view, layoutParams);
}
}
diff --git a/packages/SystemUI/shared/src/com/android/systemui/shared/system/SurfaceViewRequestUtils.java b/packages/SystemUI/shared/src/com/android/systemui/shared/system/SurfaceViewRequestUtils.java
index 0cbd541..4409276 100644
--- a/packages/SystemUI/shared/src/com/android/systemui/shared/system/SurfaceViewRequestUtils.java
+++ b/packages/SystemUI/shared/src/com/android/systemui/shared/system/SurfaceViewRequestUtils.java
@@ -36,7 +36,7 @@
}
/**
- * Retrieves the SurfaceControl from an Intent created by
+ * Retrieves the SurfaceControl from a bundle created by
* {@link #createSurfaceBundle(SurfaceView)}.
**/
public static SurfaceControl getSurfaceControl(Bundle bundle) {
@@ -44,7 +44,7 @@
}
/**
- * Retrieves the input token from an Intent created by
+ * Retrieves the input token from a bundle created by
* {@link #createSurfaceBundle(SurfaceView)}.
**/
public static @Nullable IBinder getHostToken(Bundle bundle) {