diff options
Diffstat (limited to 'src/com/android/launcher3/dragndrop/DragScroller.java')
-rw-r--r-- | src/com/android/launcher3/dragndrop/DragScroller.java | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/com/android/launcher3/dragndrop/DragScroller.java b/src/com/android/launcher3/dragndrop/DragScroller.java new file mode 100644 index 000000000..165d0b11c --- /dev/null +++ b/src/com/android/launcher3/dragndrop/DragScroller.java @@ -0,0 +1,40 @@ +/* + * Copyright (C) 2008 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.dragndrop; + +/** + * Handles scrolling while dragging + * + */ +public interface DragScroller { + void scrollLeft(); + void scrollRight(); + + /** + * The touch point has entered the scroll area; a scroll is imminent. + * This event will only occur while a drag is active. + * + * @param direction The scroll direction + */ + boolean onEnterScrollArea(int x, int y, int direction); + + /** + * The touch point has left the scroll area. + * NOTE: This may not be called, if a drop occurs inside the scroll area. + */ + boolean onExitScrollArea(); +} |