Code to enable dragging to System UI shelf.
This CL doesn’t let the new code run, it’s under a compile-time flag,
and the behavior should be same as before.
The change introduces a concept of a DragDriver, which encapsulates
behavior of the existing DND (InternalDragDriver) or the framework-
driven DND (SystemDragDriver).
An instance of DragDriver gets created by DragController for the time
while a DND operation is in progress, and it takes care of translating
DND events for DragController.
Also did some cleanups, like removing meaningless fields etc.
Plans for future: keep working in Burnaby, and:
* Perhaps, better separate DragDriver from DragController
* Detect fling gesture for system DND
* Look at accessibility
* Polish animations and appearance
* Fix dragging from folders
* Support cancelling DND
Then, it will become possible to enable new dragging (based on Android
version).
Bug: 22028725
Change-Id: I41b40e9d512d83937f5b101ac8e3e8e7e807c269
diff --git a/src/com/android/launcher3/AnotherWindowDropTarget.java b/src/com/android/launcher3/AnotherWindowDropTarget.java
new file mode 100644
index 0000000..aff36ae
--- /dev/null
+++ b/src/com/android/launcher3/AnotherWindowDropTarget.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher3;
+
+import android.content.Context;
+import android.graphics.PointF;
+import android.graphics.Rect;
+
+/**
+ * Drop target used when another window (i.e. another process) has accepted a global system drag.
+ * If the accepted item was a shortcut, we delete it from Launcher.
+ */
+public class AnotherWindowDropTarget implements DropTarget {
+ final Launcher mLauncher;
+
+ AnotherWindowDropTarget (Context context) { mLauncher = (Launcher) context; }
+
+ @Override
+ public boolean isDropEnabled() { return true; }
+
+ @Override
+ public void onDrop(DragObject dragObject) {
+ dragObject.deferDragViewCleanupPostAnimation = false;
+ LauncherModel.deleteItemFromDatabase(mLauncher, (ShortcutInfo) dragObject.dragInfo);
+ }
+
+ @Override
+ public void onDragEnter(DragObject dragObject) {}
+
+ @Override
+ public void onDragOver(DragObject dragObject) {}
+
+ @Override
+ public void onDragExit(DragObject dragObject) {}
+
+ @Override
+ public void onFlingToDelete(DragObject dragObject, PointF vec) {}
+
+ @Override
+ public boolean acceptDrop(DragObject dragObject) {
+ return dragObject.dragInfo instanceof ShortcutInfo;
+ }
+
+ @Override
+ public void prepareAccessibilityDrop() {}
+
+ // These methods are implemented in Views
+ @Override
+ public void getHitRectRelativeToDragLayer(Rect outRect) {}
+
+ @Override
+ public void getLocationInDragLayer(int[] loc) {}
+
+ @Override
+ public int getLeft() { return 0; }
+
+ @Override
+ public int getTop() { return 0; }
+}
diff --git a/src/com/android/launcher3/DragController.java b/src/com/android/launcher3/DragController.java
index 410271d..53e90fc 100644
--- a/src/com/android/launcher3/DragController.java
+++ b/src/com/android/launcher3/DragController.java
@@ -26,6 +26,7 @@
import android.os.Handler;
import android.os.IBinder;
import android.util.Log;
+import android.view.DragEvent;
import android.view.HapticFeedbackConstants;
import android.view.KeyEvent;
import android.view.MotionEvent;
@@ -73,8 +74,10 @@
private final int[] mCoordinatesTemp = new int[2];
private final boolean mIsRtl;
- /** Whether or not we're dragging. */
- private boolean mDragging;
+ /**
+ * Drag driver for the current drag/drop operation, or null if there is no active DND operation.
+ */
+ private DragDriver mDragDriver = null;
/** Whether or not this is an accessible drag operation */
private boolean mIsAccessibleDrag;
@@ -161,10 +164,6 @@
mIsRtl = Utilities.isRtl(r);
}
- public boolean dragging() {
- return mDragging;
- }
-
/**
* Starts a drag.
*
@@ -234,8 +233,8 @@
final int dragRegionLeft = dragRegion == null ? 0 : dragRegion.left;
final int dragRegionTop = dragRegion == null ? 0 : dragRegion.top;
- mDragging = true;
mIsAccessibleDrag = accessible;
+ mLastDropTarget = null;
mDragObject = new DropTarget.DragObject();
@@ -256,6 +255,8 @@
final DragView dragView = mDragObject.dragView = new DragView(mLauncher, b, registrationX,
registrationY, 0, 0, b.getWidth(), b.getHeight(), initialDragViewScale);
+ mDragDriver = DragDriver.create(this, dragInfo, dragView);
+
if (dragOffset != null) {
dragView.setDragVisualizeOffset(new Point(dragOffset));
}
@@ -318,18 +319,18 @@
* </pre>
*/
public boolean dispatchKeyEvent(KeyEvent event) {
- return mDragging;
+ return mDragDriver != null;
}
public boolean isDragging() {
- return mDragging;
+ return mDragDriver != null;
}
/**
* Stop dragging without dropping.
*/
public void cancelDrag() {
- if (mDragging) {
+ if (mDragDriver != null) {
if (mLastDropTarget != null) {
mLastDropTarget.onDragExit(mDragObject);
}
@@ -363,8 +364,8 @@
}
private void endDrag() {
- if (mDragging) {
- mDragging = false;
+ if (mDragDriver != null) {
+ mDragDriver = null;
mIsAccessibleDrag = false;
clearScrollRunnable();
boolean isDeferred = false;
@@ -416,7 +417,7 @@
}
long getLastGestureUpTime() {
- if (mDragging) {
+ if (mDragDriver != null) {
return System.currentTimeMillis();
} else {
return mLastTouchUpTime;
@@ -428,14 +429,53 @@
}
/**
+ * Call this from the drag driver.
+ */
+ public void onDriverDragMove(float x, float y) {
+ final int[] dragLayerPos = getClampedDragLayerPos(x, y);
+
+ handleMoveEvent(dragLayerPos[0], dragLayerPos[1]);
+ }
+
+ /**
+ * Call this from the drag driver.
+ */
+ public void onDriverDragEnd(float x, float y, DropTarget dropTargetOverride) {
+ final int[] dragLayerPos = getClampedDragLayerPos(x, y);
+ final int dragLayerX = dragLayerPos[0];
+ final int dragLayerY = dragLayerPos[1];
+
+ DropTarget dropTarget;
+ PointF vec = null;
+
+ if (dropTargetOverride != null) {
+ dropTarget = dropTargetOverride;
+ } else {
+ vec = isFlingingToDelete(mDragObject.dragSource);
+ if (!DeleteDropTarget.supportsDrop(mDragObject.dragInfo)) {
+ vec = null;
+ }
+ if (vec != null) {
+ dropTarget = mFlingToDeleteDropTarget;
+ } else {
+ dropTarget = findDropTarget((int) x, (int) y, mCoordinatesTemp);
+ }
+ }
+
+ drop(dropTarget, x, y, vec);
+
+ endDrag();
+ }
+
+ /**
* Call this from a drag source view.
*/
public boolean onInterceptTouchEvent(MotionEvent ev) {
@SuppressWarnings("all") // suppress dead code warning
final boolean debug = false;
if (debug) {
- Log.d(Launcher.TAG, "DragController.onInterceptTouchEvent " + ev + " mDragging="
- + mDragging);
+ Log.d(Launcher.TAG, "DragController.onInterceptTouchEvent " + ev + " Dragging="
+ + (mDragDriver != null));
}
if (mIsAccessibleDrag) {
@@ -451,35 +491,33 @@
final int dragLayerY = dragLayerPos[1];
switch (action) {
- case MotionEvent.ACTION_MOVE:
- break;
case MotionEvent.ACTION_DOWN:
// Remember location of down touch
mMotionDownX = dragLayerX;
mMotionDownY = dragLayerY;
- mLastDropTarget = null;
break;
case MotionEvent.ACTION_UP:
mLastTouchUpTime = System.currentTimeMillis();
- if (mDragging) {
- PointF vec = isFlingingToDelete(mDragObject.dragSource);
- if (!DeleteDropTarget.supportsDrop(mDragObject.dragInfo)) {
- vec = null;
- }
- if (vec != null) {
- dropOnFlingToDeleteTarget(dragLayerX, dragLayerY, vec);
- } else {
- drop(dragLayerX, dragLayerY);
- }
- }
- endDrag();
- break;
- case MotionEvent.ACTION_CANCEL:
- cancelDrag();
break;
}
- return mDragging;
+ return mDragDriver != null && mDragDriver.onInterceptTouchEvent(ev);
+ }
+
+ /**
+ * Call this from a drag source view.
+ */
+ public boolean onDragEvent(DragEvent event) {
+ return mDragDriver != null && mDragDriver.onDragEvent(event);
+ }
+
+ /**
+ * Call this from a drag view.
+ */
+ public void onDragViewAnimationEnd() {
+ if (mDragDriver != null ) {
+ mDragDriver.onDragViewAnimationEnd();
+ }
}
/**
@@ -579,7 +617,7 @@
* Call this from a drag source view.
*/
public boolean onTouchEvent(MotionEvent ev) {
- if (!mDragging || mIsAccessibleDrag) {
+ if (mDragDriver == null || mIsAccessibleDrag) {
return false;
}
@@ -592,47 +630,25 @@
final int dragLayerY = dragLayerPos[1];
switch (action) {
- case MotionEvent.ACTION_DOWN:
- // Remember where the motion event started
- mMotionDownX = dragLayerX;
- mMotionDownY = dragLayerY;
+ case MotionEvent.ACTION_DOWN:
+ // Remember where the motion event started
+ mMotionDownX = dragLayerX;
+ mMotionDownY = dragLayerY;
- if ((dragLayerX < mScrollZone) || (dragLayerX > mScrollView.getWidth() - mScrollZone)) {
- mScrollState = SCROLL_WAITING_IN_ZONE;
- mHandler.postDelayed(mScrollRunnable, SCROLL_DELAY);
- } else {
- mScrollState = SCROLL_OUTSIDE_ZONE;
- }
- handleMoveEvent(dragLayerX, dragLayerY);
- break;
- case MotionEvent.ACTION_MOVE:
- handleMoveEvent(dragLayerX, dragLayerY);
- break;
- case MotionEvent.ACTION_UP:
- // Ensure that we've processed a move event at the current pointer location.
- handleMoveEvent(dragLayerX, dragLayerY);
- mHandler.removeCallbacks(mScrollRunnable);
-
- if (mDragging) {
- PointF vec = isFlingingToDelete(mDragObject.dragSource);
- if (!DeleteDropTarget.supportsDrop(mDragObject.dragInfo)) {
- vec = null;
- }
- if (vec != null) {
- dropOnFlingToDeleteTarget(dragLayerX, dragLayerY, vec);
+ if ((dragLayerX < mScrollZone) || (dragLayerX > mScrollView.getWidth() - mScrollZone)) {
+ mScrollState = SCROLL_WAITING_IN_ZONE;
+ mHandler.postDelayed(mScrollRunnable, SCROLL_DELAY);
} else {
- drop(dragLayerX, dragLayerY);
+ mScrollState = SCROLL_OUTSIDE_ZONE;
}
- }
- endDrag();
- break;
- case MotionEvent.ACTION_CANCEL:
- mHandler.removeCallbacks(mScrollRunnable);
- cancelDrag();
- break;
+ break;
+ case MotionEvent.ACTION_UP:
+ case MotionEvent.ACTION_CANCEL:
+ mHandler.removeCallbacks(mScrollRunnable);
+ break;
}
- return true;
+ return mDragDriver.onTouchEvent(ev);
}
/**
@@ -642,7 +658,6 @@
public void prepareAccessibleDrag(int x, int y) {
mMotionDownX = x;
mMotionDownY = y;
- mLastDropTarget = null;
}
/**
@@ -660,7 +675,7 @@
dropTarget.prepareAccessibilityDrop();
// Perform the drop
- drop(location[0], location[1]);
+ drop(dropTarget, location[0], location[1], null);
endDrag();
}
@@ -690,49 +705,41 @@
return null;
}
- private void dropOnFlingToDeleteTarget(float x, float y, PointF vel) {
+ void drop(DropTarget dropTarget, float x, float y, PointF flingVel) {
final int[] coordinates = mCoordinatesTemp;
mDragObject.x = coordinates[0];
mDragObject.y = coordinates[1];
- // Clean up dragging on the target if it's not the current fling delete target otherwise,
- // start dragging to it.
- if (mLastDropTarget != null && mFlingToDeleteDropTarget != mLastDropTarget) {
- mLastDropTarget.onDragExit(mDragObject);
+ // Move dragging to the final target.
+ if (dropTarget != mLastDropTarget) {
+ if (mLastDropTarget != null) {
+ mLastDropTarget.onDragExit(mDragObject);
+ }
+ mLastDropTarget = dropTarget;
+ if (dropTarget != null) {
+ dropTarget.onDragEnter(mDragObject);
+ }
}
- // Drop onto the fling-to-delete target
- boolean accepted = false;
- mFlingToDeleteDropTarget.onDragEnter(mDragObject);
- // We must set dragComplete to true _only_ after we "enter" the fling-to-delete target for
- // "drop"
mDragObject.dragComplete = true;
- mFlingToDeleteDropTarget.onDragExit(mDragObject);
- if (mFlingToDeleteDropTarget.acceptDrop(mDragObject)) {
- mFlingToDeleteDropTarget.onFlingToDelete(mDragObject, vel);
- accepted = true;
- }
- mDragObject.dragSource.onDropCompleted((View) mFlingToDeleteDropTarget, mDragObject, true,
- accepted);
- }
- private void drop(float x, float y) {
- final int[] coordinates = mCoordinatesTemp;
- final DropTarget dropTarget = findDropTarget((int) x, (int) y, coordinates);
-
- mDragObject.x = coordinates[0];
- mDragObject.y = coordinates[1];
+ // Drop onto the target.
boolean accepted = false;
if (dropTarget != null) {
- mDragObject.dragComplete = true;
dropTarget.onDragExit(mDragObject);
if (dropTarget.acceptDrop(mDragObject)) {
- dropTarget.onDrop(mDragObject);
+ if (flingVel != null) {
+ dropTarget.onFlingToDelete(mDragObject, flingVel);
+ } else {
+ dropTarget.onDrop(mDragObject);
+ }
accepted = true;
}
}
- mDragObject.dragSource.onDropCompleted((View) dropTarget, mDragObject, false, accepted);
+ final View dropTargetAsView = dropTarget instanceof View ? (View) dropTarget : null;
+ mDragObject.dragSource.onDropCompleted(
+ dropTargetAsView, mDragObject, flingVel != null, accepted);
}
private DropTarget findDropTarget(int x, int y, int[] dropCoordinates) {
diff --git a/src/com/android/launcher3/DragDriver.java b/src/com/android/launcher3/DragDriver.java
new file mode 100644
index 0000000..56b7632
--- /dev/null
+++ b/src/com/android/launcher3/DragDriver.java
@@ -0,0 +1,235 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher3;
+
+import android.content.ClipData;
+import android.content.Intent;
+import android.graphics.Canvas;
+import android.graphics.Point;
+import android.view.DragEvent;
+import android.view.MotionEvent;
+import android.view.View;
+
+/**
+ * Base class for driving a drag/drop operation.
+ */
+public abstract class DragDriver {
+ protected final DragController mDragController;
+
+ public DragDriver(DragController dragController) {
+ mDragController = dragController;
+ }
+
+ /**
+ * Handles ending of the DragView animation.
+ */
+ public abstract void onDragViewAnimationEnd();
+
+ public abstract boolean onTouchEvent(MotionEvent ev);
+
+ public abstract boolean onDragEvent (DragEvent event);
+
+ public abstract boolean onInterceptTouchEvent(MotionEvent ev);
+
+ public static DragDriver create(
+ DragController dragController, ItemInfo dragInfo, DragView dragView) {
+ // TODO: Replace the hardcoded constant with looking at the API version.
+ final boolean useSystemDrag = false;
+
+ if (useSystemDrag) {
+ return new SystemDragDriver(dragController, dragInfo.getIntent(), dragView);
+ } else {
+ return new InternalDragDriver(dragController);
+ }
+ }
+
+};
+
+/**
+ * Class for driving a system (i.e. framework) drag/drop operation.
+ */
+class SystemDragDriver extends DragDriver {
+ /** Intent associated with the drag operation, or null is there no associated intent. */
+ private final Intent mDragIntent;
+
+ private final DragView mDragView;
+ boolean mDragging = false;
+ boolean mReceivedDropEvent = false;
+ float mLastX = 0;
+ float mLastY = 0;
+
+ public SystemDragDriver(DragController dragController, Intent dragIntent, DragView dragView) {
+ super(dragController);
+ mDragIntent = dragIntent;
+ mDragView = dragView;
+ }
+
+ private static class ShadowBuilder extends View.DragShadowBuilder {
+ final DragView mDragView;
+
+ public ShadowBuilder(DragView dragView) {
+ mDragView = dragView;
+ }
+
+ @Override
+ public void onProvideShadowMetrics (Point size, Point touch) {
+ mDragView.provideDragShadowMetrics(size, touch);
+ }
+
+ @Override
+ public void onDrawShadow(Canvas canvas) {
+ mDragView.drawDragShadow(canvas);
+ }
+ };
+
+ @Override
+ public void onDragViewAnimationEnd() {
+ // Clip data for the drag operation. If there is an intent, create an intent-based ClipData,
+ // which will be passed to a global DND.
+ // If there is no intent, craft a fake ClipData and start a local DND operation; this
+ // ClipData will be ignored.
+ final ClipData dragData = mDragIntent != null ?
+ ClipData.newIntent("", mDragIntent) :
+ ClipData.newPlainText("", "");
+
+ View.DragShadowBuilder shadowBuilder = new ShadowBuilder(mDragView);
+ // TODO: DND flags are in flux, once settled, use the appropriate constant.
+ final int flags = mDragIntent != null ? 1 : 0;
+
+ mDragging = true;
+
+ if (!mDragView.startDrag(dragData, shadowBuilder, null, flags)) {
+ mDragging = false;
+ mDragController.cancelDrag();
+ return;
+ }
+
+ // Starting from this point, the driver takes over showing the drag shadow, so hiding the
+ // drag view.
+ mDragView.setVisibility(View.INVISIBLE);
+ }
+
+ @Override
+ public boolean onTouchEvent(MotionEvent ev) {
+ return false;
+ }
+
+ @Override
+ public boolean onInterceptTouchEvent(MotionEvent ev) {
+ return false;
+ }
+
+ @Override
+ public boolean onDragEvent (DragEvent event) {
+ if (!mDragging) {
+ // We are interested only in drag events started by this driver.
+ return false;
+ }
+
+ final int action = event.getAction();
+
+ switch (action) {
+ case DragEvent.ACTION_DRAG_STARTED:
+ return true;
+
+ case DragEvent.ACTION_DRAG_ENTERED:
+ return true;
+
+ case DragEvent.ACTION_DRAG_LOCATION:
+ mLastX = event.getX();
+ mLastY = event.getY();
+ mDragController.onDriverDragMove(event.getX(), event.getY());
+ return true;
+
+ case DragEvent.ACTION_DROP:
+ mReceivedDropEvent = true;
+ return true;
+
+ case DragEvent.ACTION_DRAG_EXITED:
+ return true;
+
+ case DragEvent.ACTION_DRAG_ENDED:
+ final boolean dragAccepted = event.getResult();
+ final boolean acceptedByAnotherWindow = dragAccepted && !mReceivedDropEvent;
+
+ // When the system drag ends, its drag shadow disappears. Resume showing the drag
+ // view for the possible final animation.
+ mDragView.setVisibility(View.VISIBLE);
+
+ final DropTarget dropTargetOverride = acceptedByAnotherWindow ?
+ new AnotherWindowDropTarget(mDragView.getContext()) : null;
+
+ mDragController.onDriverDragEnd(mLastX, mLastY, dropTargetOverride);
+ mDragging = false;
+ return true;
+
+ default:
+ return false;
+ }
+ }
+};
+
+/**
+ * Class for driving an internal (i.e. not using framework) drag/drop operation.
+ */
+class InternalDragDriver extends DragDriver {
+ public InternalDragDriver(DragController dragController) {
+ super(dragController);
+ }
+
+ @Override
+ public void onDragViewAnimationEnd() {}
+
+ @Override
+ public boolean onTouchEvent(MotionEvent ev) {
+ final int action = ev.getAction();
+
+ switch (action) {
+ case MotionEvent.ACTION_MOVE:
+ mDragController.onDriverDragMove(ev.getX(), ev.getY());
+ break;
+ case MotionEvent.ACTION_UP:
+ mDragController.onDriverDragMove(ev.getX(), ev.getY());
+ mDragController.onDriverDragEnd(ev.getX(), ev.getY(), null);
+ break;
+ case MotionEvent.ACTION_CANCEL:
+ mDragController.cancelDrag();
+ break;
+ }
+
+ return true;
+ }
+
+ @Override
+ public boolean onInterceptTouchEvent(MotionEvent ev) {
+ final int action = ev.getAction();
+
+ switch (action) {
+ case MotionEvent.ACTION_UP:
+ mDragController.onDriverDragEnd(ev.getX(), ev.getY(), null);
+ break;
+ case MotionEvent.ACTION_CANCEL:
+ mDragController.cancelDrag();
+ break;
+ }
+
+ return true;
+ }
+
+ @Override
+ public boolean onDragEvent (DragEvent event) { return false; }
+};
diff --git a/src/com/android/launcher3/DragLayer.java b/src/com/android/launcher3/DragLayer.java
index aaa14e6..8445cca 100644
--- a/src/com/android/launcher3/DragLayer.java
+++ b/src/com/android/launcher3/DragLayer.java
@@ -28,6 +28,7 @@
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
+import android.view.DragEvent;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
@@ -375,6 +376,11 @@
return mDragController.onTouchEvent(ev);
}
+ @Override
+ public boolean onDragEvent (DragEvent event) {
+ return mDragController.onDragEvent(event);
+ }
+
/**
* Determine the rect of the descendant in this DragLayer's coordinates
*
@@ -764,7 +770,7 @@
// Show the drop view if it was previously hidden
mDropView = view;
mDropView.cancelAnimation();
- mDropView.resetLayoutParams();
+ mDropView.requestLayout();
// Set the anchor view if the page is scrolling
if (anchorView != null) {
diff --git a/src/com/android/launcher3/DragView.java b/src/com/android/launcher3/DragView.java
index dfa8202..10809b5 100644
--- a/src/com/android/launcher3/DragView.java
+++ b/src/com/android/launcher3/DragView.java
@@ -16,6 +16,8 @@
package com.android.launcher3;
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
import android.animation.FloatArrayEvaluator;
import android.animation.ValueAnimator;
import android.animation.ValueAnimator.AnimatorUpdateListener;
@@ -45,18 +47,17 @@
private Bitmap mBitmap;
private Bitmap mCrossFadeBitmap;
@Thunk Paint mPaint;
- private int mRegistrationX;
- private int mRegistrationY;
+ private final int mRegistrationX;
+ private final int mRegistrationY;
private Point mDragVisualizeOffset = null;
private Rect mDragRegion = null;
- private DragLayer mDragLayer = null;
+ private final DragLayer mDragLayer;
+ private final DragController mDragController;
private boolean mHasDrawn = false;
@Thunk float mCrossFadeProgress = 0f;
ValueAnimator mAnim;
- @Thunk float mOffsetX = 0.0f;
- @Thunk float mOffsetY = 0.0f;
private float mInitialScale = 1f;
// The intrinsic icon scale factor is the scale factor for a drag icon over the workspace
// size. This is ignored for non-icons.
@@ -81,6 +82,7 @@
int left, int top, int width, int height, final float initialScale) {
super(launcher);
mDragLayer = launcher.getDragLayer();
+ mDragController = launcher.getDragController();
mInitialScale = initialScale;
final Resources res = getResources();
@@ -99,11 +101,6 @@
public void onAnimationUpdate(ValueAnimator animation) {
final float value = (Float) animation.getAnimatedValue();
- final int deltaX = (int) (-mOffsetX);
- final int deltaY = (int) (-mOffsetY);
-
- mOffsetX += deltaX;
- mOffsetY += deltaY;
setScaleX(initialScale + (value * (scale - initialScale)));
setScaleY(initialScale + (value * (scale - initialScale)));
if (sDragAlpha != 1f) {
@@ -112,13 +109,17 @@
if (getParent() == null) {
animation.cancel();
- } else {
- setTranslationX(getTranslationX() + deltaX);
- setTranslationY(getTranslationY() + deltaY);
}
}
});
+ mAnim.addListener(new AnimatorListenerAdapter() {
+ @Override
+ public void onAnimationEnd(Animator animation) {
+ mDragController.onDragViewAnimationEnd();
+ }
+ });
+
mBitmap = Bitmap.createBitmap(bitmap, left, top, width, height);
setDragRegion(new Rect(0, 0, width, height));
@@ -145,10 +146,6 @@
return mIntrinsicIconScale;
}
- public float getOffsetY() {
- return mOffsetY;
- }
-
public int getDragRegionLeft() {
return mDragRegion.left;
}
@@ -181,10 +178,6 @@
return mDragRegion;
}
- public float getInitialScale() {
- return mInitialScale;
- }
-
public void updateInitialScaleToCurrentScale() {
mInitialScale = getScaleX();
}
@@ -194,6 +187,23 @@
setMeasuredDimension(mBitmap.getWidth(), mBitmap.getHeight());
}
+ // Draws drag shadow for system DND.
+ public void drawDragShadow(Canvas canvas) {
+ final int saveCount = canvas.save(Canvas.MATRIX_SAVE_FLAG);
+ canvas.scale(getScaleX(), getScaleY());
+ onDraw(canvas);
+ canvas.restoreToCount(saveCount);
+ }
+
+ // Provides drag shadow metrics for system DND.
+ public void provideDragShadowMetrics(Point size, Point touch) {
+ size.set((int)(mBitmap.getWidth() * getScaleX()), (int)(mBitmap.getHeight() * getScaleY()));
+
+ final int xGrowth = (int)(mBitmap.getWidth() * (getScaleX() - mInitialScale));
+ final int yGrowth = (int)(mBitmap.getHeight() * (getScaleY() - mInitialScale));
+ touch.set(mRegistrationX + xGrowth / 2, mRegistrationY + yGrowth / 2);
+ }
+
@Override
protected void onDraw(Canvas canvas) {
@SuppressWarnings("all") // suppress dead code warning
@@ -214,12 +224,12 @@
canvas.drawBitmap(mBitmap, 0.0f, 0.0f, mPaint);
if (crossFade) {
mPaint.setAlpha((int) (255 * mCrossFadeProgress));
- canvas.save();
+ final int saveCount = canvas.save(Canvas.MATRIX_SAVE_FLAG);
float sX = (mBitmap.getWidth() * 1.0f) / mCrossFadeBitmap.getWidth();
float sY = (mBitmap.getHeight() * 1.0f) / mCrossFadeBitmap.getHeight();
canvas.scale(sX, sY);
canvas.drawBitmap(mCrossFadeBitmap, 0.0f, 0.0f, mPaint);
- canvas.restore();
+ canvas.restoreToCount(saveCount);
}
}
@@ -333,11 +343,6 @@
}
}
- public void resetLayoutParams() {
- mOffsetX = mOffsetY = 0;
- requestLayout();
- }
-
/**
* Move the window containing this view.
*
@@ -345,8 +350,8 @@
* @param touchY the y coordinate the user touched in DragLayer coordinates
*/
void move(int touchX, int touchY) {
- setTranslationX(touchX - mRegistrationX + (int) mOffsetX);
- setTranslationY(touchY - mRegistrationY + (int) mOffsetY);
+ setTranslationX(touchX - mRegistrationX);
+ setTranslationY(touchY - mRegistrationY);
}
void remove() {
diff --git a/src/com/android/launcher3/ItemInfo.java b/src/com/android/launcher3/ItemInfo.java
index 4bc5019..956bb8c 100644
--- a/src/com/android/launcher3/ItemInfo.java
+++ b/src/com/android/launcher3/ItemInfo.java
@@ -134,7 +134,7 @@
}
public Intent getIntent() {
- throw new RuntimeException("Unexpected Intent");
+ return null;
}
/**