A brave new world for window insets (1/n)
This CL starts a journey to discover a brave new inset world. The
path to get us there may be rocky, but it's going to be rocky.
One of the main pledges of the new API is that an app can retrieve
what is causing a certain inset easily. For that, we need to
dispatch metadata who is causing what inset, such that we can query
it from the client side.
Furthermore, the client will be able to manipulate insets directly,
but also listen to animation changes. We don't want to go through
window manager for that, thus, there needs to be a local codepath
from (global window state -> WindowInsets).
Because we have these two requirements, we dispatch the relevant
global window state for insets, represented by InsetsState, and
dispatch it to the client. On the client side we take the frame
and the InsetsState and generate WindowInsets out of it.
Bug: 118118435
Test: InsetsSourceTest, InsetsStateTest, InsetsSourceProviderTest,
InsetsStateControllerTest
Change-Id: I2bfe9dda376512916261823fc2ee35cbedeb6731
diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index 3acacbc..c546ac7 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -34,6 +34,7 @@
import static android.view.Surface.ROTATION_270;
import static android.view.Surface.ROTATION_90;
import static android.view.View.GONE;
+import static android.view.InsetsState.TYPE_IME;
import static android.view.WindowManager.DOCKED_BOTTOM;
import static android.view.WindowManager.DOCKED_INVALID;
import static android.view.WindowManager.DOCKED_TOP;
@@ -124,6 +125,7 @@
import android.annotation.CallSuper;
import android.annotation.IntDef;
import android.annotation.NonNull;
+import android.annotation.Nullable;
import android.content.pm.PackageManager;
import android.content.res.CompatibilityInfo;
import android.content.res.Configuration;
@@ -151,6 +153,7 @@
import android.view.Gravity;
import android.view.InputChannel;
import android.view.InputDevice;
+import android.view.InsetsState.InternalInsetType;
import android.view.MagnificationSpec;
import android.view.Surface;
import android.view.SurfaceControl;
@@ -162,6 +165,7 @@
import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.util.ToBooleanFunction;
+import com.android.internal.util.function.TriConsumer;
import com.android.server.policy.WindowManagerPolicy;
import com.android.server.wm.utils.DisplayRotationUtil;
import com.android.server.wm.utils.RotationCache;
@@ -515,6 +519,8 @@
private final PointerEventDispatcher mPointerEventDispatcher;
+ private final InsetsStateController mInsetsStateController;
+
// Last systemUiVisibility we received from status bar.
private int mLastStatusBarVisibility = 0;
// Last systemUiVisibility we dispatched to windows.
@@ -922,6 +928,7 @@
mService.mAnimator.addDisplayLocked(mDisplayId);
mInputMonitor = new InputMonitor(service, mDisplayId);
+ mInsetsStateController = new InsetsStateController(this);
}
boolean isReady() {
@@ -1058,6 +1065,23 @@
return mDisplayRotation;
}
+ /**
+ * Marks a window as providing insets for the rest of the windows in the system.
+ *
+ * @param type The type of inset this window provides.
+ * @param win The window.
+ * @param frameProvider Function to compute the frame, or {@code null} if the just the frame of
+ * the window should be taken.
+ */
+ void setInsetProvider(@InternalInsetType int type, WindowState win,
+ @Nullable TriConsumer<DisplayFrames, WindowState, Rect> frameProvider) {
+ mInsetsStateController.getSourceProvider(type).setWindow(win, frameProvider);
+ }
+
+ InsetsStateController getInsetsStateController() {
+ return mInsetsStateController;
+ }
+
@VisibleForTesting
void setDisplayRotation(DisplayRotation displayRotation) {
mDisplayRotation = displayRotation;
@@ -2733,6 +2757,8 @@
mDisplayRotation.dump(prefix, pw);
pw.println();
mInputMonitor.dump(pw, " ");
+ pw.println();
+ mInsetsStateController.dump(prefix, pw);
}
@Override
@@ -3015,6 +3041,8 @@
mInputMethodWindow.getDisplayId());
}
computeImeTarget(true /* updateImeTarget */);
+ mInsetsStateController.getSourceProvider(TYPE_IME).setWindow(win,
+ null /* frameProvider */);
}
/**
@@ -3470,6 +3498,7 @@
pendingLayoutChanges |= mDisplayPolicy.finishPostLayoutPolicyLw();
if (DEBUG_LAYOUT_REPEATS) surfacePlacer.debugLayoutRepeats(
"after finishPostLayoutPolicyLw", pendingLayoutChanges);
+ mInsetsStateController.onPostLayout();
} while (pendingLayoutChanges != 0);
mTmpApplySurfaceChangesTransactionState.reset();