1 /*
2  * Copyright (C) 2010 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 java.util.List;
20 
21 import android.appwidget.AppWidgetProviderInfo;
22 import android.content.ClipData;
23 import android.content.Context;
24 import android.content.DialogInterface;
25 import android.content.pm.PackageManager;
26 import android.content.pm.ResolveInfo;
27 import android.database.DataSetObserver;
28 import android.graphics.drawable.Drawable;
29 import android.view.LayoutInflater;
30 import android.view.View;
31 import android.view.ViewGroup;
32 import android.widget.ImageView;
33 import android.widget.ListAdapter;
34 import android.widget.TextView;
35 
36 import com.android.launcher.R;
37 
38 
39 /**
40  * We will likely flesh this out later, to handle allow external apps to place widgets, but for now,
41  * we just want to expose the action around for checking elsewhere.
42  */
43 public class InstallWidgetReceiver {
44     public static final String ACTION_INSTALL_WIDGET =
45             "com.android.launcher.action.INSTALL_WIDGET";
46     public static final String ACTION_SUPPORTS_CLIPDATA_MIMETYPE =
47             "com.android.launcher.action.SUPPORTS_CLIPDATA_MIMETYPE";
48 
49     // Currently not exposed.  Put into Intent when we want to make it public.
50     // TEMP: Should we call this "EXTRA_APPWIDGET_PROVIDER"?
51     public static final String EXTRA_APPWIDGET_COMPONENT =
52         "com.android.launcher.extra.widget.COMPONENT";
53     public static final String EXTRA_APPWIDGET_CONFIGURATION_DATA_MIME_TYPE =
54         "com.android.launcher.extra.widget.CONFIGURATION_DATA_MIME_TYPE";
55     public static final String EXTRA_APPWIDGET_CONFIGURATION_DATA =
56         "com.android.launcher.extra.widget.CONFIGURATION_DATA";
57 
58     /**
59      * A simple data class that contains per-item information that the adapter below can reference.
60      */
61     public static class WidgetMimeTypeHandlerData {
62         public ResolveInfo resolveInfo;
63         public AppWidgetProviderInfo widgetInfo;
64 
WidgetMimeTypeHandlerData(ResolveInfo rInfo, AppWidgetProviderInfo wInfo)65         public WidgetMimeTypeHandlerData(ResolveInfo rInfo, AppWidgetProviderInfo wInfo) {
66             resolveInfo = rInfo;
67             widgetInfo = wInfo;
68         }
69     }
70 
71     /**
72      * The ListAdapter which presents all the valid widgets that can be created for a given drop.
73      */
74     public static class WidgetListAdapter implements ListAdapter, DialogInterface.OnClickListener {
75         private LayoutInflater mInflater;
76         private Launcher mLauncher;
77         private String mMimeType;
78         private ClipData mClipData;
79         private List<WidgetMimeTypeHandlerData> mActivities;
80         private CellLayout mTargetLayout;
81         private int mTargetLayoutScreen;
82         private int[] mTargetLayoutPos;
83 
WidgetListAdapter(Launcher l, String mimeType, ClipData data, List<WidgetMimeTypeHandlerData> list, CellLayout target, int targetScreen, int[] targetPos)84         public WidgetListAdapter(Launcher l, String mimeType, ClipData data,
85                 List<WidgetMimeTypeHandlerData> list, CellLayout target,
86                 int targetScreen, int[] targetPos) {
87             mLauncher = l;
88             mMimeType = mimeType;
89             mClipData = data;
90             mActivities = list;
91             mTargetLayout = target;
92             mTargetLayoutScreen = targetScreen;
93             mTargetLayoutPos = targetPos;
94         }
95 
96         @Override
registerDataSetObserver(DataSetObserver observer)97         public void registerDataSetObserver(DataSetObserver observer) {
98         }
99 
100         @Override
unregisterDataSetObserver(DataSetObserver observer)101         public void unregisterDataSetObserver(DataSetObserver observer) {
102         }
103 
104         @Override
getCount()105         public int getCount() {
106             return mActivities.size();
107         }
108 
109         @Override
getItem(int position)110         public Object getItem(int position) {
111             return null;
112         }
113 
114         @Override
getItemId(int position)115         public long getItemId(int position) {
116             return position;
117         }
118 
119         @Override
hasStableIds()120         public boolean hasStableIds() {
121             return true;
122         }
123 
124         @Override
getView(int position, View convertView, ViewGroup parent)125         public View getView(int position, View convertView, ViewGroup parent) {
126             final Context context = parent.getContext();
127             final PackageManager packageManager = context.getPackageManager();
128 
129             // Lazy-create inflater
130             if (mInflater == null) {
131                 mInflater = LayoutInflater.from(context);
132             }
133 
134             // Use the convert-view where possible
135             if (convertView == null) {
136                 convertView = mInflater.inflate(R.layout.external_widget_drop_list_item, parent,
137                         false);
138             }
139 
140             final WidgetMimeTypeHandlerData data = mActivities.get(position);
141             final ResolveInfo resolveInfo = data.resolveInfo;
142             final AppWidgetProviderInfo widgetInfo = data.widgetInfo;
143 
144             // Set the icon
145             Drawable d = resolveInfo.loadIcon(packageManager);
146             ImageView i = (ImageView) convertView.findViewById(R.id.provider_icon);
147             i.setImageDrawable(d);
148 
149             // Set the text
150             final CharSequence component = resolveInfo.loadLabel(packageManager);
151             final int[] widgetSpan = new int[2];
152             mTargetLayout.rectToCell(widgetInfo.minWidth, widgetInfo.minHeight, widgetSpan);
153             TextView t = (TextView) convertView.findViewById(R.id.provider);
154             t.setText(context.getString(R.string.external_drop_widget_pick_format,
155                     component, widgetSpan[0], widgetSpan[1]));
156 
157             return convertView;
158         }
159 
160         @Override
getItemViewType(int position)161         public int getItemViewType(int position) {
162             return 0;
163         }
164 
165         @Override
getViewTypeCount()166         public int getViewTypeCount() {
167             return 1;
168         }
169 
170         @Override
isEmpty()171         public boolean isEmpty() {
172             return mActivities.isEmpty();
173         }
174 
175         @Override
areAllItemsEnabled()176         public boolean areAllItemsEnabled() {
177             return false;
178         }
179 
180         @Override
isEnabled(int position)181         public boolean isEnabled(int position) {
182             return true;
183         }
184 
185         @Override
onClick(DialogInterface dialog, int which)186         public void onClick(DialogInterface dialog, int which) {
187             final AppWidgetProviderInfo widgetInfo = mActivities.get(which).widgetInfo;
188 
189             final PendingAddWidgetInfo createInfo = new PendingAddWidgetInfo(widgetInfo, mMimeType,
190                     mClipData);
191             mLauncher.addAppWidgetFromDrop(createInfo, LauncherSettings.Favorites.CONTAINER_DESKTOP,
192                     mTargetLayoutScreen, null, null, mTargetLayoutPos);
193         }
194     }
195 }
196