| /* |
| * 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.graphics.PorterDuff; |
| import android.graphics.PorterDuffColorFilter; |
| import android.graphics.Rect; |
| import android.util.AttributeSet; |
| import android.view.View; |
| import android.widget.ImageView; |
| |
| /** |
| * Implements a DropTarget which allows applications to be dropped on it, |
| * in order to launch the application info for that app. |
| */ |
| public class ApplicationInfoDropTarget extends ImageView implements DropTarget, DragController.DragListener { |
| private Launcher mLauncher; |
| private DragController mDragController; |
| private boolean mActive = false; |
| |
| private View mHandle; |
| |
| private final Paint mPaint = new Paint(); |
| |
| public ApplicationInfoDropTarget(Context context, AttributeSet attrs) { |
| this(context, attrs, 0); |
| } |
| |
| public ApplicationInfoDropTarget(Context context, AttributeSet attrs, int defStyle) { |
| super(context, attrs, defStyle); |
| } |
| |
| @Override |
| protected void onFinishInflate() { |
| super.onFinishInflate(); |
| } |
| |
| /** |
| * Set the color that will be used as a filter over objects dragged over this object. |
| */ |
| public void setDragColor(int color) { |
| mPaint.setColorFilter(new PorterDuffColorFilter(color, PorterDuff.Mode.SRC_ATOP)); |
| } |
| |
| public boolean acceptDrop(DragSource source, int x, int y, int xOffset, int yOffset, |
| DragView dragView, Object dragInfo) { |
| |
| // acceptDrop is called just before onDrop. We do the work here, rather than |
| // in onDrop, because it allows us to reject the drop (by returning false) |
| // so that the object being dragged isn't removed from the home screen. |
| |
| String packageName = null; |
| if (dragInfo instanceof ApplicationInfo) { |
| packageName = ((ApplicationInfo)dragInfo).componentName.getPackageName(); |
| } else if (dragInfo instanceof ShortcutInfo) { |
| packageName = ((ShortcutInfo)dragInfo).intent.getComponent().getPackageName(); |
| } |
| mLauncher.startApplicationDetailsActivity(packageName); |
| return false; |
| } |
| |
| public Rect estimateDropLocation(DragSource source, int x, int y, int xOffset, int yOffset, |
| DragView dragView, Object dragInfo, Rect recycle) { |
| return null; |
| } |
| |
| public void onDrop(DragSource source, int x, int y, int xOffset, int yOffset, |
| DragView dragView, Object dragInfo) { |
| |
| } |
| |
| public void onDragEnter(DragSource source, int x, int y, int xOffset, int yOffset, |
| DragView dragView, Object dragInfo) { |
| dragView.setPaint(mPaint); |
| } |
| |
| public void onDragOver(DragSource source, int x, int y, int xOffset, int yOffset, |
| DragView dragView, Object dragInfo) { |
| } |
| |
| public void onDragExit(DragSource source, int x, int y, int xOffset, int yOffset, |
| DragView dragView, Object dragInfo) { |
| // TODO: Animate out |
| dragView.setPaint(null); |
| } |
| |
| public void onDragStart(DragSource source, Object info, int dragAction) { |
| if (info != null) { |
| mActive = true; |
| |
| // TODO: Animate these in and out |
| |
| // Only show the info icon when an application is selected |
| if (((ItemInfo)info).itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION) { |
| setVisibility(VISIBLE); |
| } |
| mHandle.setVisibility(INVISIBLE); |
| } |
| } |
| |
| public void onDragEnd() { |
| if (mActive) { |
| mActive = false; |
| // TODO: Animate these in and out |
| setVisibility(GONE); |
| mHandle.setVisibility(VISIBLE); |
| } |
| } |
| |
| void setLauncher(Launcher launcher) { |
| mLauncher = launcher; |
| } |
| |
| void setDragController(DragController dragController) { |
| mDragController = dragController; |
| } |
| |
| void setHandle(View view) { |
| mHandle = view; |
| } |
| |
| @Override |
| public DropTarget getDropTargetDelegate(DragSource source, int x, int y, int xOffset, int yOffset, |
| DragView dragView, Object dragInfo) { |
| return null; |
| } |
| } |