1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.launcher2; 18 19 import android.content.ComponentName; 20 import android.content.Context; 21 import android.content.res.ColorStateList; 22 import android.content.res.Configuration; 23 import android.content.res.Resources; 24 import android.graphics.drawable.TransitionDrawable; 25 import android.util.AttributeSet; 26 import android.view.View; 27 import android.view.ViewGroup; 28 29 import com.android.launcher.R; 30 31 public class InfoDropTarget extends ButtonDropTarget { 32 33 private ColorStateList mOriginalTextColor; 34 private TransitionDrawable mDrawable; 35 InfoDropTarget(Context context, AttributeSet attrs)36 public InfoDropTarget(Context context, AttributeSet attrs) { 37 this(context, attrs, 0); 38 } 39 InfoDropTarget(Context context, AttributeSet attrs, int defStyle)40 public InfoDropTarget(Context context, AttributeSet attrs, int defStyle) { 41 super(context, attrs, defStyle); 42 } 43 44 @Override onFinishInflate()45 protected void onFinishInflate() { 46 super.onFinishInflate(); 47 48 mOriginalTextColor = getTextColors(); 49 50 // Get the hover color 51 Resources r = getResources(); 52 mHoverColor = r.getColor(R.color.info_target_hover_tint); 53 mDrawable = (TransitionDrawable) getCurrentDrawable(); 54 if (null != mDrawable) { 55 mDrawable.setCrossFadeEnabled(true); 56 } 57 58 // Remove the text in the Phone UI in landscape 59 int orientation = getResources().getConfiguration().orientation; 60 if (orientation == Configuration.ORIENTATION_LANDSCAPE) { 61 if (!LauncherApplication.isScreenLarge()) { 62 setText(""); 63 } 64 } 65 } 66 isFromAllApps(DragSource source)67 private boolean isFromAllApps(DragSource source) { 68 return (source instanceof AppsCustomizePagedView); 69 } 70 71 @Override acceptDrop(DragObject d)72 public boolean acceptDrop(DragObject d) { 73 // acceptDrop is called just before onDrop. We do the work here, rather than 74 // in onDrop, because it allows us to reject the drop (by returning false) 75 // so that the object being dragged isn't removed from the drag source. 76 ComponentName componentName = null; 77 if (d.dragInfo instanceof ApplicationInfo) { 78 componentName = ((ApplicationInfo) d.dragInfo).componentName; 79 } else if (d.dragInfo instanceof ShortcutInfo) { 80 componentName = ((ShortcutInfo) d.dragInfo).intent.getComponent(); 81 } else if (d.dragInfo instanceof PendingAddItemInfo) { 82 componentName = ((PendingAddItemInfo) d.dragInfo).componentName; 83 } 84 if (componentName != null) { 85 mLauncher.startApplicationDetailsActivity(componentName); 86 } 87 88 // There is no post-drop animation, so clean up the DragView now 89 d.deferDragViewCleanupPostAnimation = false; 90 return false; 91 } 92 93 @Override onDragStart(DragSource source, Object info, int dragAction)94 public void onDragStart(DragSource source, Object info, int dragAction) { 95 boolean isVisible = true; 96 97 // Hide this button unless we are dragging something from AllApps 98 if (!isFromAllApps(source)) { 99 isVisible = false; 100 } 101 102 mActive = isVisible; 103 mDrawable.resetTransition(); 104 setTextColor(mOriginalTextColor); 105 ((ViewGroup) getParent()).setVisibility(isVisible ? View.VISIBLE : View.GONE); 106 } 107 108 @Override onDragEnd()109 public void onDragEnd() { 110 super.onDragEnd(); 111 mActive = false; 112 } 113 onDragEnter(DragObject d)114 public void onDragEnter(DragObject d) { 115 super.onDragEnter(d); 116 117 mDrawable.startTransition(mTransitionDuration); 118 setTextColor(mHoverColor); 119 } 120 onDragExit(DragObject d)121 public void onDragExit(DragObject d) { 122 super.onDragExit(d); 123 124 if (!d.dragComplete) { 125 mDrawable.resetTransition(); 126 setTextColor(mOriginalTextColor); 127 } 128 } 129 } 130