-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import android.content.Context;
import android.util.DisplayMetrics;
-import android.util.Log;
import android.view.MotionEvent;
/**
private int mFirstTouchY = -1;
private float mDistanceX = 0;
private float mDistanceY = 0;
- private ZoomManager mZoomManager;
- SnapScrollController(Context context, ZoomManager zoomManager) {
+ SnapScrollController(Context context) {
calculateChannelDistance(context);
- mZoomManager = zoomManager;
}
/**
* Sets the snap scroll mode based on the event type.
* @param event The received MotionEvent.
*/
- void setSnapScrollingMode(MotionEvent event) {
+ void setSnapScrollingMode(MotionEvent event, boolean isScaleGestureDetectionInProgress) {
switch(event.getAction()) {
case MotionEvent.ACTION_DOWN:
mSnapScrollMode = SNAP_NONE;
// and movement towards x-axis is trivial.
// Scrolling mode will remain in SNAP_NONE for other conditions.
case MotionEvent.ACTION_MOVE:
- if (!mZoomManager.isScaleGestureDetectionInProgress() &&
+ if (!isScaleGestureDetectionInProgress &&
mSnapScrollMode == SNAP_NONE) {
int xDiff = (int) Math.abs(event.getX() - mFirstTouchX);
int yDiff = (int) Math.abs(event.getY() - mFirstTouchY);
mDistanceY = 0;
break;
default:
- Log.i(TAG, "setSnapScrollingMode case-default no-op");
break;
}
}
}
/**
- * Resets the snap scroll mode to default.
- */
- void resetSnapScrollMode() {
- mSnapScrollMode = SNAP_NONE;
- }
-
- /**
* @return Whether current snap scroll mode is vertical.
*/
boolean isSnapVertical() {