Merge "Don't move PiP towards a corner after user manually moved it." into tm-qpr-dev

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

@@ -97,6 +97,8 @@ public class PipBoundsState {
     private int mShelfHeight;
     /** Whether the user has resized the PIP manually. */
     private boolean mHasUserResizedPip;
+    /** Whether the user has moved the PIP manually. */
+    private boolean mHasUserMovedPip;
     /**
      * Areas defined by currently visible apps that they prefer to keep clear from overlays such as
      * the PiP. Restricted areas may only move the PiP a limited amount from its anchor position.
@@ -279,6 +281,7 @@ public class PipBoundsState {
         if (changed) {
             clearReentryState();
             setHasUserResizedPip(false);
+            setHasUserMovedPip(false);
         }
     }
 
@@ -442,6 +445,16 @@ public class PipBoundsState {
         mHasUserResizedPip = hasUserResizedPip;
     }
 
+    /** Returns whether the user has moved the PIP. */
+    public boolean hasUserMovedPip() {
+        return mHasUserMovedPip;
+    }
+
+    /** Set whether the user has moved the PIP. */
+    public void setHasUserMovedPip(boolean hasUserMovedPip) {
+        mHasUserMovedPip = hasUserMovedPip;
+    }
+
     /**
      * Registers a callback when the minimal size of PIP that is set by the app changes.
      */
@@ -577,6 +590,8 @@ public class PipBoundsState {
         pw.println(innerPrefix + "mImeHeight=" + mImeHeight);
         pw.println(innerPrefix + "mIsShelfShowing=" + mIsShelfShowing);
         pw.println(innerPrefix + "mShelfHeight=" + mShelfHeight);
+        pw.println(innerPrefix + "mHasUserMovedPip=" + mHasUserMovedPip);
+        pw.println(innerPrefix + "mHasUserResizedPip=" + mHasUserResizedPip);
         if (mPipReentryState == null) {
             pw.println(innerPrefix + "mPipReentryState=null");
         } else {

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

@@ -19,6 +19,7 @@ package com.android.wm.shell.pip.phone;
 import android.content.Context;
 import android.content.res.Resources;
 import android.graphics.Rect;
+import android.os.SystemProperties;
 import android.util.ArraySet;
 import android.view.Gravity;
 
@@ -34,6 +35,10 @@ import java.util.Set;
  */
 public class PhonePipKeepClearAlgorithm implements PipKeepClearAlgorithm {
 
+    private boolean mKeepClearAreaGravityEnabled =
+            SystemProperties.getBoolean(
+                    "persist.wm.debug.enable_pip_keep_clear_algorithm_gravity", false);
+
     protected int mKeepClearAreasPadding;
 
     public PhonePipKeepClearAlgorithm(Context context) {
@@ -53,31 +58,36 @@ public class PhonePipKeepClearAlgorithm implements PipKeepClearAlgorithm {
         Rect startingBounds = pipBoundsState.getBounds().isEmpty()
                 ? pipBoundsAlgorithm.getEntryDestinationBoundsIgnoringKeepClearAreas()
                 : pipBoundsState.getBounds();
-        float snapFraction = pipBoundsAlgorithm.getSnapFraction(startingBounds);
-        int verticalGravity = Gravity.BOTTOM;
-        int horizontalGravity;
-        if (snapFraction >= 0.5f && snapFraction < 2.5f) {
-            horizontalGravity = Gravity.RIGHT;
-        } else {
-            horizontalGravity = Gravity.LEFT;
-        }
-        // push the bounds based on the gravity
         Rect insets = new Rect();
         pipBoundsAlgorithm.getInsetBounds(insets);
         if (pipBoundsState.isImeShowing()) {
             insets.bottom -= pipBoundsState.getImeHeight();
         }
-        Rect pushedBounds = new Rect(startingBounds);
-        if (verticalGravity == Gravity.BOTTOM) {
-            pushedBounds.offsetTo(pushedBounds.left,
-                    insets.bottom - pushedBounds.height());
+        Rect pipBounds = new Rect(startingBounds);
+
+        // move PiP towards corner if user hasn't moved it manually or the flag is on
+        if (mKeepClearAreaGravityEnabled
+                || (!pipBoundsState.hasUserMovedPip() && !pipBoundsState.hasUserResizedPip())) {
+            float snapFraction = pipBoundsAlgorithm.getSnapFraction(startingBounds);
+            int verticalGravity = Gravity.BOTTOM;
+            int horizontalGravity;
+            if (snapFraction >= 0.5f && snapFraction < 2.5f) {
+                horizontalGravity = Gravity.RIGHT;
+            } else {
+                horizontalGravity = Gravity.LEFT;
+            }
+            if (verticalGravity == Gravity.BOTTOM) {
+                pipBounds.offsetTo(pipBounds.left,
+                        insets.bottom - pipBounds.height());
+            }
+            if (horizontalGravity == Gravity.RIGHT) {
+                pipBounds.offsetTo(insets.right - pipBounds.width(), pipBounds.top);
+            } else {
+                pipBounds.offsetTo(insets.left, pipBounds.top);
+            }
         }
-        if (horizontalGravity == Gravity.RIGHT) {
-            pushedBounds.offsetTo(insets.right - pushedBounds.width(), pushedBounds.top);
-        } else {
-            pushedBounds.offsetTo(insets.left, pushedBounds.top);
-        }
-        return findUnoccludedPosition(pushedBounds, pipBoundsState.getRestrictedKeepClearAreas(),
+
+        return findUnoccludedPosition(pipBounds, pipBoundsState.getRestrictedKeepClearAreas(),
                 pipBoundsState.getUnrestrictedKeepClearAreas(), insets);
     }
 

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

@@ -875,6 +875,8 @@ public class PipTouchHandler {
             }
 
             if (touchState.isDragging()) {
+                mPipBoundsState.setHasUserMovedPip(true);
+
                 // Move the pinned stack freely
                 final PointF lastDelta = touchState.getLastTouchDelta();
                 float lastX = mStartPosition.x + mDelta.x;