SearchWidgetProvider.java revision 6a8622297b91cd88304ff4890160528a55827b19 
1/*
2 * Copyright (C) 2009 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.quicksearchbox;
18
19import com.android.quicksearchbox.ui.SearchSourceSelector;
20import com.android.quicksearchbox.ui.SuggestionViewFactory;
21
22import android.app.PendingIntent;
23import android.app.SearchManager;
24import android.appwidget.AppWidgetManager;
25import android.appwidget.AppWidgetProvider;
26import android.content.ComponentName;
27import android.content.Context;
28import android.content.Intent;
29import android.net.Uri;
30import android.os.Bundle;
31import android.speech.RecognizerIntent;
32import android.util.Log;
33import android.view.KeyEvent;
34import android.view.View;
35import android.widget.RemoteViews;
36
37/**
38 * Search widget provider.
39 *
40 */
41public class SearchWidgetProvider extends AppWidgetProvider {
42
43    private static final boolean DBG = true;
44    private static final String TAG = "QSB.SearchWidgetProvider";
45
46    private static final boolean SHOW_SHORTCUT_IN_WIDGET = false;
47
48    private static final String ACTION_UPDATE_SEARCH_WIDGETS =
49            "com.android.quicksearchbox.UPDATE_SEARCH_WIDGETS";
50
51    private static final String WIDGET_SEARCH_SOURCE = "launcher-search";
52    private static final String WIDGET_SEARCH_SHORTCUT_SOURCE = "launcher-search-shortcut";
53
54    // TODO: Expose SearchManager.SOURCE instead.
55    private static final String SOURCE = "source";
56
57    /**
58     * Updates all search widgets.
59     */
60    public static void updateSearchWidgets(Context context) {
61        Intent intent = new Intent(ACTION_UPDATE_SEARCH_WIDGETS);
62        intent.setPackage(context.getPackageName());
63        if (DBG) Log.d(TAG, "Broadcasting " + intent);
64        context.sendBroadcast(intent);
65    }
66
67    @Override
68    public void onReceive(Context context, Intent intent) {
69        String action = intent.getAction();
70        if (ACTION_UPDATE_SEARCH_WIDGETS.equals(action)) {
71            // We requested the update. Find the widgets and update them.
72            AppWidgetManager manager = AppWidgetManager.getInstance(context);
73            ComponentName self = new ComponentName(context, getClass());
74            int[] appWidgetIds = manager.getAppWidgetIds(self);
75            onUpdate(context, manager, appWidgetIds);
76        } else {
77            // Handle actions requested by the widget host.
78            super.onReceive(context, intent);
79        }
80    }
81
82    @Override
83    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
84        updateSearchWidgets(context, appWidgetManager, appWidgetIds);
85    }
86
87    /**
88     * Updates a set of search widgets.
89     */
90    private void updateSearchWidgets(Context context, AppWidgetManager appWidgetManager,
91            int[] appWidgetIds) {
92        if (DBG) Log.d(TAG, "updateSearchWidgets()");
93        RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.search_widget);
94
95        Bundle widgetAppData = new Bundle();
96        widgetAppData.putString(SOURCE, WIDGET_SEARCH_SOURCE);
97
98        // Source selector
99        bindSourceSelector(context, views, widgetAppData);
100
101        // Text field
102        Intent qsbIntent = new Intent(SearchManager.INTENT_ACTION_GLOBAL_SEARCH);
103        qsbIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
104        qsbIntent.putExtra(SearchManager.APP_DATA, widgetAppData);
105        PendingIntent textPendingIntent = PendingIntent.getActivity(context, 0, qsbIntent, 0);
106        views.setOnClickPendingIntent(R.id.search_widget_text, textPendingIntent);
107
108        // Voice search button. Only shown if voice search is available.
109        Intent voiceSearchIntent = new Intent(RecognizerIntent.ACTION_WEB_SEARCH);
110        voiceSearchIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
111        voiceSearchIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
112                RecognizerIntent.LANGUAGE_MODEL_WEB_SEARCH);
113        // TODO: Does VoiceSearch actually look at APP_DATA?
114        voiceSearchIntent.putExtra(SearchManager.APP_DATA, widgetAppData);
115        if (voiceSearchIntent.resolveActivity(context.getPackageManager()) != null) {
116            PendingIntent voicePendingIntent =
117                PendingIntent.getActivity(context, 0, voiceSearchIntent, 0);
118            views.setOnClickPendingIntent(R.id.search_widget_voice_btn, voicePendingIntent);
119            views.setViewVisibility(R.id.search_widget_voice_btn, View.VISIBLE);
120        } else {
121            views.setViewVisibility(R.id.search_widget_voice_btn, View.GONE);
122        }
123
124        // Shortcuts
125        if (SHOW_SHORTCUT_IN_WIDGET) {
126            bindShortcuts(context, views);
127        }
128
129        appWidgetManager.updateAppWidget(appWidgetIds, views);
130    }
131
132    private void bindShortcuts(Context context, RemoteViews views) {
133        ShortcutRepository shortcutRepo = getShortcutRepository(context);
134        SuggestionCursor shortcuts = shortcutRepo.getShortcutsForQuery("");
135        try {
136            if (shortcuts != null && shortcuts.getCount() > 0) {
137                shortcuts.moveTo(0);
138                RemoteViews shortcutView = new RemoteViews(context.getPackageName(),
139                        R.layout.widget_suggestion);
140                bindRemoteViewSuggestion(context, shortcutView, shortcuts);
141                views.addView(R.id.widget_shortcuts, shortcutView);
142                views.setViewVisibility(R.id.widget_shortcuts, View.VISIBLE);
143            } else {
144                if (DBG) Log.d(TAG, "No shortcuts, hiding drop-down.");
145                views.setViewVisibility(R.id.widget_shortcuts, View.GONE);
146            }
147        } finally {
148            if (shortcuts != null) {
149                shortcuts.close();
150            }
151        }
152    }
153
154    private void bindSourceSelector(Context context, RemoteViews views, Bundle widgetAppData) {
155        Source source = getSources(context).getLastSelectedSource();
156        Uri sourceIconUri = getSourceIconUri(context, source);
157        views.setImageViewUri(SearchSourceSelector.ICON_VIEW_ID, sourceIconUri);
158        Intent intent = SearchSourceSelector.createIntent(null, "", widgetAppData);
159        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
160        views.setOnClickPendingIntent(SearchSourceSelector.ICON_VIEW_ID, pendingIntent);
161    }
162
163    private Uri getSourceIconUri(Context context, Source source) {
164        if (source == null) {
165            return getSuggestionViewFactory(context).getGlobalSearchIconUri();
166        }
167        return source.getSourceIconUri();
168    }
169
170    private void bindRemoteViewSuggestion(Context context, RemoteViews views,
171            SuggestionCursor suggestion) {
172        CharSequence text1 = suggestion.getSuggestionFormattedText1();
173        CharSequence text2 = suggestion.getSuggestionFormattedText2();
174        Uri icon1 = suggestion.getIconUri(suggestion.getSuggestionIcon1());
175        if (icon1 == null) {
176            icon1 = suggestion.getSourceIconUri();
177        }
178        Uri icon2 = suggestion.getIconUri(suggestion.getSuggestionIcon2());
179        PendingIntent pendingIntent = getWidgetSuggestionIntent(context, suggestion);
180        if (DBG) {
181            Log.d(TAG, "Adding shortcut to widget: text1=" + text1 + ",text2=" + text2
182                    + ",icon1=" + icon1 + ",icon2=" + icon2);
183            Log.d(TAG, "    intent=" + pendingIntent);
184        }
185        setText1(views, text1);
186        setIcon1(views, icon1);
187        setPendingIntent(views, pendingIntent);
188    }
189
190    private PendingIntent getWidgetSuggestionIntent(Context context, SuggestionCursor suggestion) {
191        Bundle widgetAppData = new Bundle();
192        widgetAppData.putString(SOURCE, WIDGET_SEARCH_SHORTCUT_SOURCE);
193        Intent intent = suggestion.getSuggestionIntent(context, widgetAppData,
194                KeyEvent.KEYCODE_UNKNOWN, null);
195        return PendingIntent.getActivity(context, 0, intent, 0);
196    }
197
198    private void setText1(RemoteViews views, CharSequence text) {
199        views.setCharSequence(R.id.text1, "setText", text);
200    }
201
202    private void setIcon1(RemoteViews views, Uri icon) {
203        views.setImageViewUri(R.id.icon1, icon);
204    }
205
206    private void setPendingIntent(RemoteViews views, PendingIntent pendingIntent) {
207        views.setOnClickPendingIntent(R.id.widget_suggestion, pendingIntent);
208    }
209
210    private QsbApplication getQsbApplication(Context context) {
211        return (QsbApplication) context.getApplicationContext();
212    }
213
214    private SourceLookup getSources(Context context) {
215        return getQsbApplication(context).getSources();
216    }
217
218    private ShortcutRepository getShortcutRepository(Context context) {
219        return getQsbApplication(context).getShortcutRepository();
220    }
221
222    private SuggestionViewFactory getSuggestionViewFactory(Context context) {
223        return getQsbApplication(context).getSuggestionViewFactory();
224    }
225
226}
227