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The Android Open Source Project
2009-03-03 18:28:51 -08:00
parent 38a75b2d89
commit 3189679370
162 changed files with 0 additions and 12453 deletions
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59
src/com/android/launcher/DropTarget.java
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/*
* 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.launcher;
/**
* Interface defining an object that can receive a drag.
*
*/
public interface DropTarget {
/**
* Handle an object being dropped on the DropTarget
*
* @param source DragSource where the drag started
* @param x X coordinate of the drop location
* @param y Y coordinate of the drop location
* @param xOffset Horizontal offset with the object being dragged where the original touch happened
* @param yOffset Vertical offset with the object being dragged where the original touch happened
* @param dragInfo Data associated with the object being dragged
*
*/
void onDrop(DragSource source, int x, int y, int xOffset, int yOffset, Object dragInfo);
void onDragEnter(DragSource source, int x, int y, int xOffset, int yOffset, Object dragInfo);
void onDragOver(DragSource source, int x, int y, int xOffset, int yOffset, Object dragInfo);
void onDragExit(DragSource source, int x, int y, int xOffset, int yOffset, Object dragInfo);
/**
* Indicates whether a drop action can occur at the specified location. The method
* {@link #onDrop(DragSource, int, int, int, int, Object)} will be invoked on this
* drop target only if this method returns true.
*
* @param source DragSource where the drag started
* @param x X coordinate of the drop location
* @param y Y coordinate of the drop location
* @param xOffset Horizontal offset with the object being dragged where the original touch happened
* @param yOffset Vertical offset with the object being dragged where the original touch happened
* @param dragInfo Data associated with the object being dragged
*
* return True if the drop is accepted, false otherwise.
*/
boolean acceptDrop(DragSource source, int x, int y, int xOffset, int yOffset, Object dragInfo);
}