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
17package com.android.launcher2;
18
19import java.util.List;
20
21import android.appwidget.AppWidgetProviderInfo;
22import android.content.ClipData;
23import android.content.Context;
24import android.content.DialogInterface;
25import android.content.pm.PackageManager;
26import android.content.pm.ResolveInfo;
27import android.database.DataSetObserver;
28import android.graphics.drawable.Drawable;
29import android.view.LayoutInflater;
30import android.view.View;
31import android.view.ViewGroup;
32import android.widget.ImageView;
33import android.widget.ListAdapter;
34import android.widget.TextView;
35
36import 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 */
43public 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
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
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
97        public void registerDataSetObserver(DataSetObserver observer) {
98        }
99
100        @Override
101        public void unregisterDataSetObserver(DataSetObserver observer) {
102        }
103
104        @Override
105        public int getCount() {
106            return mActivities.size();
107        }
108
109        @Override
110        public Object getItem(int position) {
111            return null;
112        }
113
114        @Override
115        public long getItemId(int position) {
116            return position;
117        }
118
119        @Override
120        public boolean hasStableIds() {
121            return true;
122        }
123
124        @Override
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
161        public int getItemViewType(int position) {
162            return 0;
163        }
164
165        @Override
166        public int getViewTypeCount() {
167            return 1;
168        }
169
170        @Override
171        public boolean isEmpty() {
172            return mActivities.isEmpty();
173        }
174
175        @Override
176        public boolean areAllItemsEnabled() {
177            return false;
178        }
179
180        @Override
181        public boolean isEnabled(int position) {
182            return true;
183        }
184
185        @Override
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