Merge "Move PiP swiftly in response to IME with keep clear areas flag enabled." into tm-qpr-dev am: 56cf35b281 am: d0609b03c7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19954058

Change-Id: Ie5add78e0ed9486767ffedc2029a3cf789772383
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

libs/WindowManager/Shell/src/com/android/wm/shell/pip/PipTaskOrganizer.java

@@ -324,6 +324,19 @@ public class PipTaskOrganizer implements ShellTaskOrganizer.TaskListener,
         return mPipTransitionController;
     }
 
+    /**
+     * Returns true if the PiP window is currently being animated.
+     */
+    public boolean isAnimating() {
+        // TODO(b/183746978) move this to PipAnimationController, and inject that in PipController
+        PipAnimationController.PipTransitionAnimator animator =
+                mPipAnimationController.getCurrentAnimator();
+        if (animator != null && animator.isRunning()) {
+            return true;
+        }
+        return false;
+    }
+
     public Rect getCurrentOrAnimatingBounds() {
         PipAnimationController.PipTransitionAnimator animator =
                 mPipAnimationController.getCurrentAnimator();

libs/WindowManager/Shell/src/com/android/wm/shell/pip/phone/PhonePipKeepClearAlgorithm.java

@@ -54,13 +54,8 @@ public class PhonePipKeepClearAlgorithm implements PipKeepClearAlgorithm {
                 ? pipBoundsAlgorithm.getEntryDestinationBoundsIgnoringKeepClearAreas()
                 : pipBoundsState.getBounds();
         float snapFraction = pipBoundsAlgorithm.getSnapFraction(startingBounds);
-        int verticalGravity;
+        int verticalGravity = Gravity.BOTTOM;
         int horizontalGravity;
-        if (snapFraction < 1.5f || snapFraction >= 3.5f) {
-            verticalGravity = Gravity.NO_GRAVITY;
-        } else {
-            verticalGravity = Gravity.BOTTOM;
-        }
         if (snapFraction >= 0.5f && snapFraction < 2.5f) {
             horizontalGravity = Gravity.RIGHT;
         } else {

libs/WindowManager/Shell/src/com/android/wm/shell/pip/phone/PipController.java

@@ -149,7 +149,42 @@ public class PipController implements PipTransitionController.PipTransitionCallb
     private final Rect mTmpInsetBounds = new Rect();
     private final int mEnterAnimationDuration;
 
-    private final Runnable mMovePipInResponseToKeepClearAreasChangeCallback;
+    private final Runnable mMovePipInResponseToKeepClearAreasChangeCallback =
+            this::onKeepClearAreasChangedCallback;
+
+    private void onKeepClearAreasChangedCallback() {
+        if (!mEnablePipKeepClearAlgorithm) {
+            // early bail out if the keep clear areas feature is disabled
+            return;
+        }
+        // if there is another animation ongoing, wait for it to finish and try again
+        if (mPipTaskOrganizer.isAnimating()) {
+            mMainExecutor.removeCallbacks(
+                    mMovePipInResponseToKeepClearAreasChangeCallback);
+            mMainExecutor.executeDelayed(
+                    mMovePipInResponseToKeepClearAreasChangeCallback,
+                    PIP_KEEP_CLEAR_AREAS_DELAY);
+            return;
+        }
+        updatePipPositionForKeepClearAreas();
+    }
+
+    private void updatePipPositionForKeepClearAreas() {
+        if (!mEnablePipKeepClearAlgorithm) {
+            // early bail out if the keep clear areas feature is disabled
+            return;
+        }
+        // only move if already in pip, other transitions account for keep clear areas
+        if (mPipTransitionState.hasEnteredPip()) {
+            Rect destBounds = mPipKeepClearAlgorithm.adjust(mPipBoundsState,
+                    mPipBoundsAlgorithm);
+            // only move if the bounds are actually different
+            if (destBounds != mPipBoundsState.getBounds()) {
+                mPipTaskOrganizer.scheduleAnimateResizePip(destBounds,
+                        mEnterAnimationDuration, null);
+            }
+        }
+    }
 
     private boolean mIsInFixedRotation;
     private PipAnimationListener mPinnedStackAnimationRecentsCallback;
@@ -302,6 +337,9 @@ public class PipController implements PipTransitionController.PipTransitionCallb
         public void onImeVisibilityChanged(boolean imeVisible, int imeHeight) {
             mPipBoundsState.setImeVisibility(imeVisible, imeHeight);
             mTouchHandler.onImeVisibilityChanged(imeVisible, imeHeight);
+            if (imeVisible) {
+                updatePipPositionForKeepClearAreas();
+            }
         }
 
         @Override
@@ -414,15 +452,6 @@ public class PipController implements PipTransitionController.PipTransitionCallb
 
         mEnterAnimationDuration = mContext.getResources()
                 .getInteger(R.integer.config_pipEnterAnimationDuration);
-        mMovePipInResponseToKeepClearAreasChangeCallback = () -> {
-            // only move if already in pip, other transitions account for keep clear areas
-            if (mPipTransitionState.hasEnteredPip()) {
-                Rect destBounds = mPipKeepClearAlgorithm.adjust(mPipBoundsState,
-                        mPipBoundsAlgorithm);
-                mPipTaskOrganizer.scheduleAnimateResizePip(destBounds,
-                        mEnterAnimationDuration, null);
-            }
-        };
         mPipParamsChangedForwarder = pipParamsChangedForwarder;
         mDisplayInsetsController = displayInsetsController;
 

libs/WindowManager/Shell/src/com/android/wm/shell/pip/phone/PipTouchHandler.java

@@ -34,6 +34,7 @@ import android.content.res.Resources;
 import android.graphics.Point;
 import android.graphics.PointF;
 import android.graphics.Rect;
+import android.os.SystemProperties;
 import android.provider.DeviceConfig;
 import android.util.Size;
 import android.view.DisplayCutout;
@@ -70,6 +71,9 @@ public class PipTouchHandler {
     private static final String TAG = "PipTouchHandler";
     private static final float DEFAULT_STASH_VELOCITY_THRESHOLD = 18000.f;
 
+    private static final boolean ENABLE_PIP_KEEP_CLEAR_ALGORITHM =
+            SystemProperties.getBoolean("persist.wm.debug.enable_pip_keep_clear_algorithm", false);
+
     // Allow PIP to resize to a slightly bigger state upon touch
     private boolean mEnableResize;
     private final Context mContext;
@@ -426,6 +430,9 @@ public class PipTouchHandler {
             if (mTouchState.isUserInteracting()) {
                 // Defer the update of the current movement bounds until after the user finishes
                 // touching the screen
+            } else if (ENABLE_PIP_KEEP_CLEAR_ALGORITHM) {
+                // Ignore moving PiP if keep clear algorithm is enabled, since IME and shelf height
+                // now are accounted for in the keep clear algorithm calculations
             } else {
                 final boolean isExpanded = mMenuState == MENU_STATE_FULL && willResizeMenu();
                 final Rect toMovementBounds = new Rect();