Files
Lawnchair/src/com/android/launcher3/DragSource.java
Hyunyoung Song 59a238095e Support user event logging for drag and drop
b/30039490

Supported in this CL:
- DnD: drag from container [WORKSPACE|HOTSEAT|FOLDER|ALLAPPS|WIDGETS|DEEPSHORTCUTS]
       drag to container [HOTSEAT,WORKSPACE,FOLDER,DROPTARGETS]
- Source and target can be [FOLDER_ICON, ICON, DEEPSHORTCUT, WIDGET]
- $ adb shell setprop log.tag.UserEvent DEBUG will turn on debugging

Change-Id: I0b8b879b80e6dce85bbde6e7794f9e0677832603
2016-09-01 12:47:12 -07:00

63 lines
2.1 KiB
Java

/*
* 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;
import android.view.View;
import com.android.launcher3.DropTarget.DragObject;
import com.android.launcher3.logging.UserEventDispatcher.LaunchSourceProvider;
/**
* Interface defining an object that can originate a drag.
*/
public interface DragSource extends LaunchSourceProvider {
/**
* @return whether items dragged from this source supports
*/
boolean supportsFlingToDelete();
/**
* @return whether items dragged from this source supports 'App Info'
*/
boolean supportsAppInfoDropTarget();
/**
* @return whether items dragged from this source supports 'Delete' drop target (e.g. to remove
* a shortcut.) If this returns false, the drop target will say "Cancel" instead of "Remove."
*/
boolean supportsDeleteDropTarget();
/*
* @return the scale of the icons over the workspace icon size
*/
float getIntrinsicIconScaleFactor();
/**
* A callback specifically made back to the source after an item from this source has been flung
* to be deleted on a DropTarget. In such a situation, this method will be called after
* onDropCompleted, and more importantly, after the fling animation has completed.
*/
void onFlingToDeleteCompleted();
/**
* A callback made back to the source after an item from this source has been dropped on a
* DropTarget.
*/
void onDropCompleted(View target, DragObject d, boolean isFlingToDelete, boolean success);
}