diff options
Diffstat (limited to 'src/com/android/launcher2/ButtonDropTarget.java')
-rw-r--r-- | src/com/android/launcher2/ButtonDropTarget.java | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/src/com/android/launcher2/ButtonDropTarget.java b/src/com/android/launcher2/ButtonDropTarget.java new file mode 100644 index 000000000..e3da860cc --- /dev/null +++ b/src/com/android/launcher2/ButtonDropTarget.java @@ -0,0 +1,93 @@ +/* + * Copyright (C) 2010 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.launcher2; + +import android.content.Context; +import android.graphics.Paint; +import android.util.AttributeSet; +import android.widget.FrameLayout; + +import com.android.launcher.R; + + +/** + * Implements a DropTarget. + */ +public class ButtonDropTarget extends FrameLayout implements DropTarget, DragController.DragListener { + + protected final int mTransitionDuration; + + protected Launcher mLauncher; + + /** Whether this drop target is active for the current drag */ + protected boolean mActive; + + /** The paint applied to the drag view on hover */ + protected final Paint mHoverPaint = new Paint(); + + public ButtonDropTarget(Context context, AttributeSet attrs) { + this(context, attrs, 0); + } + + public ButtonDropTarget(Context context, AttributeSet attrs, int defStyle) { + super(context, attrs, defStyle); + + mTransitionDuration = + context.getResources().getInteger(R.integer.config_dropTargetBgTransitionDuration); + } + + void setLauncher(Launcher launcher) { + mLauncher = launcher; + } + + public boolean acceptDrop(DragObject d) { + return false; + } + + public void onDrop(DragObject d) { + // Do nothing + } + + public void onDragEnter(DragObject d) { + d.dragView.setPaint(mHoverPaint); + } + + public void onDragOver(DragObject d) { + // Do nothing + } + + public void onDragExit(DragObject d) { + d.dragView.setPaint(null); + } + + public void onDragStart(DragSource source, Object info, int dragAction) { + // Do nothing + } + + public boolean isDropEnabled() { + return mActive; + } + + public void onDragEnd() { + // Do nothing + } + + @Override + public DropTarget getDropTargetDelegate(DragObject d) { + return null; + } +} |