Update stashed handle region to only include the handle

Before it included the whole width/height of the view, rather than just the outline where the handle is drawn.

Test: Swipe up from a light app on dark wallpaper, ensure handle changes color as soon as the white app background is past halfway through the handle
Bug: 193938970
Change-Id: Ic8b83f60976f05b8ff56590422bd9b2fa6140e76

1 files changed, 7 insertions, 3 deletions

diff --git a/quickstep/src/com/android/launcher3/taskbar/StashedHandleView.java b/quickstep/src/com/android/launcher3/taskbar/StashedHandleView.java
index 0224bc4a5b..670035aee2 100644
--- a/quickstep/src/com/android/launcher3/taskbar/StashedHandleView.java
+++ b/quickstep/src/com/android/launcher3/taskbar/StashedHandleView.java
@@ -54,10 +54,14 @@ public class StashedHandleView extends View {
                 R.color.taskbar_stashed_handle_dark_color);
     }
 
-    public void updateSampledRegion() {
+    /**
+     * Updates mSampledRegion to be the location of the stashedHandleBounds relative to the screen.
+     * @see #getSampledRegion()
+     */
+    public void updateSampledRegion(Rect stashedHandleBounds) {
         getLocationOnScreen(mTmpArr);
-        mSampledRegion.set(mTmpArr[0], mTmpArr[1], mTmpArr[0] + getWidth(),
-                mTmpArr[1] + getHeight());
+        mSampledRegion.set(stashedHandleBounds);
+        mSampledRegion.offset(mTmpArr[0], mTmpArr[1]);
     }
 
     public Rect getSampledRegion() {