| /* |
| * 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 com.android.launcher.R; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorSet; |
| import android.animation.ObjectAnimator; |
| import android.animation.Animator.AnimatorListener; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.graphics.PorterDuff; |
| import android.graphics.PorterDuffColorFilter; |
| import android.util.AttributeSet; |
| import android.view.View; |
| |
| /** |
| * 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 IconDropTarget { |
| private static final int sFadeInAnimationDuration = 200; |
| private static final int sFadeOutAnimationDuration = 100; |
| |
| private AnimatorSet mFadeAnimator; |
| |
| public ApplicationInfoDropTarget(Context context, AttributeSet attrs) { |
| this(context, attrs, 0); |
| } |
| |
| public ApplicationInfoDropTarget(Context context, AttributeSet attrs, int defStyle) { |
| super(context, attrs, defStyle); |
| |
| // Set the hover paint colour |
| int colour = getContext().getResources().getColor(R.color.app_info_filter); |
| mHoverPaint.setColorFilter(new PorterDuffColorFilter(colour, PorterDuff.Mode.SRC_ATOP)); |
| |
| if (LauncherApplication.isScreenXLarge()) { |
| // For the application info drop target, we just ignore the left padding since we don't want |
| // to overlap with the delete zone padding |
| int tb = getResources().getDimensionPixelSize( |
| R.dimen.delete_zone_vertical_drag_padding); |
| int lr = getResources().getDimensionPixelSize( |
| R.dimen.delete_zone_horizontal_drag_padding); |
| setDragPadding(tb, lr, tb, 0); |
| } |
| } |
| |
| 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. |
| if (getVisibility() != VISIBLE) return false; |
| |
| ComponentName componentName = null; |
| if (dragInfo instanceof ApplicationInfo) { |
| componentName = ((ApplicationInfo)dragInfo).componentName; |
| } else if (dragInfo instanceof ShortcutInfo) { |
| componentName = ((ShortcutInfo)dragInfo).intent.getComponent(); |
| } |
| mLauncher.startApplicationDetailsActivity(componentName); |
| return false; |
| } |
| |
| public void onDragEnter(DragSource source, int x, int y, int xOffset, int yOffset, |
| DragView dragView, Object dragInfo) { |
| if (!mDragAndDropEnabled) return; |
| dragView.setPaint(mHoverPaint); |
| } |
| |
| public void onDragExit(DragSource source, int x, int y, int xOffset, int yOffset, |
| DragView dragView, Object dragInfo) { |
| if (!mDragAndDropEnabled) return; |
| dragView.setPaint(null); |
| } |
| |
| public void onDragStart(DragSource source, Object info, int dragAction) { |
| if (info != null && mDragAndDropEnabled) { |
| final int itemType = ((ItemInfo)info).itemType; |
| mActive = (itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION); |
| if (mActive) { |
| // Fade in this icon |
| if (mFadeAnimator != null) mFadeAnimator.cancel(); |
| mFadeAnimator = new AnimatorSet(); |
| Animator infoButtonAnimator = ObjectAnimator.ofFloat(this, "alpha", 0.0f, 1.0f); |
| infoButtonAnimator.setDuration(sFadeInAnimationDuration); |
| |
| mFadeAnimator.play(infoButtonAnimator); |
| |
| setVisibility(VISIBLE); |
| |
| // Fade out the overlapping views |
| if (mOverlappingViews != null) { |
| for (View view : mOverlappingViews) { |
| ObjectAnimator oa = ObjectAnimator.ofFloat(view, "alpha", 0.0f); |
| oa.setDuration(sFadeOutAnimationDuration); |
| mFadeAnimator.play(oa); |
| } |
| mFadeAnimator.addListener(new AnimatorListener() { |
| public void onAnimationStart(Animator animation) {} |
| public void onAnimationRepeat(Animator animation) {} |
| public void onAnimationEnd(Animator animation) { |
| onEndOrCancel(); |
| } |
| public void onAnimationCancel(Animator animation) { |
| onEndOrCancel(); |
| } |
| private void onEndOrCancel() { |
| for (View view : mOverlappingViews) { |
| view.setVisibility(INVISIBLE); |
| } |
| mFadeAnimator = null; |
| } |
| }); |
| } |
| mFadeAnimator.start(); |
| } |
| } |
| } |
| |
| public void onDragEnd() { |
| if (!mDragAndDropEnabled) return; |
| if (mActive) mActive = false; |
| |
| // Fade out this icon |
| if (mFadeAnimator != null) mFadeAnimator.cancel(); |
| mFadeAnimator = new AnimatorSet(); |
| Animator infoButtonAnimator = ObjectAnimator.ofFloat(this, "alpha", 0.0f); |
| infoButtonAnimator.setDuration(sFadeOutAnimationDuration); |
| mFadeAnimator.addListener(new AnimatorListener() { |
| public void onAnimationStart(Animator animation) {} |
| public void onAnimationRepeat(Animator animation) {} |
| public void onAnimationEnd(Animator animation) { |
| onEndOrCancel(); |
| } |
| public void onAnimationCancel(Animator animation) { |
| onEndOrCancel(); |
| } |
| private void onEndOrCancel() { |
| setVisibility(GONE); |
| mFadeAnimator = null; |
| } |
| }); |
| mFadeAnimator.play(infoButtonAnimator); |
| |
| // Fade in the overlapping views |
| if (mOverlappingViews != null) { |
| for (View view : mOverlappingViews) { |
| // Check whether the views are enabled first, before trying to fade them in |
| if (view.isEnabled()) { |
| ObjectAnimator oa = ObjectAnimator.ofFloat(view, "alpha", 1.0f); |
| oa.setDuration(sFadeInAnimationDuration); |
| mFadeAnimator.play(oa); |
| view.setVisibility(VISIBLE); |
| } |
| } |
| } |
| mFadeAnimator.start(); |
| } |
| } |