Merge "Let TaskbarDragView scale up before switching to system drag view" into sc-v2-dev am: d750d16b69

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15406135

Change-Id: I54225ee1227ca979620266972989e271898ebf9f

quickstep/src/com/android/launcher3/taskbar/TaskbarDragController.java

@@ -117,6 +117,24 @@ public class TaskbarDragController extends DragController<TaskbarActivityContext
         dragLayerY += dragRect.top;
 
         DragOptions dragOptions = new DragOptions();
+        dragOptions.preDragCondition = new DragOptions.PreDragCondition() {
+            private DragView mDragView;
+
+            @Override
+            public boolean shouldStartDrag(double distanceDragged) {
+                return mDragView != null && mDragView.isAnimationFinished();
+            }
+
+            @Override
+            public void onPreDragStart(DropTarget.DragObject dragObject) {
+                mDragView = dragObject.dragView;
+            }
+
+            @Override
+            public void onPreDragEnd(DropTarget.DragObject dragObject, boolean dragStarted) {
+                mDragView = null;
+            }
+        };
         // TODO: open popup/pre-drag
         // PopupContainerWithArrow popupContainer = PopupContainerWithArrow.showForIcon(view);
         // if (popupContainer != null) {
@@ -155,6 +173,7 @@ public class TaskbarDragController extends DragController<TaskbarActivityContext
 
         mDragObject = new DropTarget.DragObject(mActivity.getApplicationContext());
         mDragObject.originalView = originalView;
+        mDragObject.deferDragViewCleanupPostAnimation = false;
 
         mIsInPreDrag = mOptions.preDragCondition != null
                 && !mOptions.preDragCondition.shouldStartDrag(0);

src/com/android/launcher3/dragndrop/DragView.java

@@ -23,6 +23,8 @@ import static com.android.launcher3.LauncherAnimUtils.VIEW_ALPHA;
 import static com.android.launcher3.Utilities.getBadge;
 import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
 
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
 import android.animation.ObjectAnimator;
 import android.animation.ValueAnimator;
@@ -94,6 +96,8 @@ public abstract class DragView<T extends Context & ActivityContext> extends Fram
     private boolean mHasDrawn = false;
 
     final ValueAnimator mAnim;
+    // Whether mAnim has started. Unlike mAnim.isStarted(), this is true even after mAnim ends.
+    private boolean mAnimStarted;
 
     private int mLastTouchX;
     private int mLastTouchY;
@@ -171,6 +175,12 @@ public abstract class DragView<T extends Context & ActivityContext> extends Fram
                 animation.cancel();
             }
         });
+        mAnim.addListener(new AnimatorListenerAdapter() {
+            @Override
+            public void onAnimationStart(Animator animation) {
+                mAnimStarted = true;
+            }
+        });
 
         setDragRegion(new Rect(0, 0, width, height));
 
@@ -396,6 +406,10 @@ public abstract class DragView<T extends Context & ActivityContext> extends Fram
         }
     }
 
+    public boolean isAnimationFinished() {
+        return mAnimStarted && !mAnim.isRunning();
+    }
+
     /**
      * Move the window containing this view.
      *