| /* |
| * Copyright (C) 2011 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.animation.ObjectAnimator; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.res.Resources; |
| import android.graphics.Color; |
| import android.graphics.PorterDuff; |
| import android.graphics.PorterDuffColorFilter; |
| import android.util.AttributeSet; |
| import android.view.View; |
| |
| import com.android.launcher.R; |
| |
| public class InfoDropTarget extends ButtonDropTarget { |
| |
| private int mHoverColor = 0xFF0000FF; |
| |
| public InfoDropTarget(Context context, AttributeSet attrs) { |
| this(context, attrs, 0); |
| } |
| |
| public InfoDropTarget(Context context, AttributeSet attrs, int defStyle) { |
| super(context, attrs, defStyle); |
| } |
| |
| @Override |
| protected void onFinishInflate() { |
| super.onFinishInflate(); |
| |
| // Get the hover color |
| Resources r = getResources(); |
| mHoverColor = r.getColor(R.color.info_target_hover_tint); |
| mHoverPaint.setColorFilter(new PorterDuffColorFilter( |
| mHoverColor, PorterDuff.Mode.SRC_ATOP)); |
| setBackgroundColor(mHoverColor); |
| getBackground().setAlpha(0); |
| } |
| |
| private boolean isApplication(Object info) { |
| if (info instanceof ApplicationInfo) return true; |
| return (((ItemInfo) info).itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION); |
| } |
| |
| @Override |
| public boolean acceptDrop(DragObject d) { |
| // 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 drag source. |
| ComponentName componentName = null; |
| if (d.dragInfo instanceof ApplicationInfo) { |
| componentName = ((ApplicationInfo) d.dragInfo).componentName; |
| } else if (d.dragInfo instanceof ShortcutInfo) { |
| componentName = ((ShortcutInfo) d.dragInfo).intent.getComponent(); |
| } |
| if (componentName != null) { |
| mLauncher.startApplicationDetailsActivity(componentName); |
| } |
| return false; |
| } |
| |
| @Override |
| public void onDragStart(DragSource source, Object info, int dragAction) { |
| ItemInfo item = (ItemInfo) info; |
| boolean isVisible = true; |
| |
| // If we are dragging a widget or shortcut, hide the info target |
| if (!isApplication(info)) { |
| isVisible = false; |
| } |
| |
| mActive = isVisible; |
| setVisibility(isVisible ? View.VISIBLE : View.GONE); |
| } |
| |
| @Override |
| public void onDragEnd() { |
| super.onDragEnd(); |
| mActive = false; |
| } |
| |
| public void onDragEnter(DragObject d) { |
| super.onDragEnter(d); |
| |
| ObjectAnimator anim = ObjectAnimator.ofInt(getBackground(), "alpha", |
| Color.alpha(mHoverColor)); |
| anim.setDuration(mTransitionDuration); |
| anim.start(); |
| } |
| |
| public void onDragExit(DragObject d) { |
| super.onDragExit(d); |
| |
| ObjectAnimator anim = ObjectAnimator.ofInt(getBackground(), "alpha", 0); |
| anim.setDuration(mTransitionDuration); |
| anim.start(); |
| } |
| } |