SearchWidgetProvider.java revision 970c3017a56be51401c4e5878d128c14f3bbf027 
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 android.app.PendingIntent;
20import android.app.SearchManager;
21import android.appwidget.AppWidgetManager;
22import android.appwidget.AppWidgetProvider;
23import android.content.ComponentName;
24import android.content.Context;
25import android.content.Intent;
26import android.net.Uri;
27import android.os.Bundle;
28import android.speech.RecognizerIntent;
29import android.util.Log;
30import android.view.KeyEvent;
31import android.view.View;
32import android.widget.RemoteViews;
33
34/**
35 * Search widget provider.
36 *
37 */
38public class SearchWidgetProvider extends AppWidgetProvider {
39
40    private static final boolean DBG = true;
41    private static final String TAG = "QSB.SearchWidgetProvider";
42
43    private static final boolean SHOW_SHORTCUT_IN_WIDGET = false;
44
45    private static final String ACTION_UPDATE_SEARCH_WIDGETS =
46            "com.android.quicksearchbox.UPDATE_SEARCH_WIDGETS";
47
48    private static final String WIDGET_SEARCH_SOURCE = "launcher-search";
49    private static final String WIDGET_SEARCH_SHORTCUT_SOURCE = "launcher-search-shortcut";
50
51    // TODO: Expose SearchManager.SOURCE instead.
52    private static final String SOURCE = "source";
53
54    /**
55     * Updates all search widgets.
56     */
57    public static void updateSearchWidgets(Context context) {
58        Intent intent = new Intent(ACTION_UPDATE_SEARCH_WIDGETS);
59        intent.setComponent(myComponentName(context));
60        if (DBG) Log.d(TAG, "Broadcasting " + intent);
61        context.sendBroadcast(intent);
62    }
63
64    /**
65     * Gets the component name for this app widget provider.
66     */
67    private static ComponentName myComponentName(Context context) {
68        return new ComponentName(context, SearchWidgetProvider.class);
69    }
70
71    @Override
72    public void onReceive(Context context, Intent intent) {
73        String action = intent.getAction();
74        if (ACTION_UPDATE_SEARCH_WIDGETS.equals(action)) {
75            // We requested the update. Find the widgets and update them.
76            AppWidgetManager manager = AppWidgetManager.getInstance(context);
77            int[] appWidgetIds = manager.getAppWidgetIds(myComponentName(context));
78            onUpdate(context, manager, appWidgetIds);
79        } else {
80            // Handle actions requested by the widget host.
81            super.onReceive(context, intent);
82        }
83    }
84
85    @Override
86    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
87        updateSearchWidgets(context, appWidgetManager, appWidgetIds);
88    }
89
90    /**
91     * Updates a set of search widgets.
92     */
93    private void updateSearchWidgets(Context context, AppWidgetManager appWidgetManager,
94            int[] appWidgetIds) {
95        if (DBG) Log.d(TAG, "updateSearchWidgets()");
96        RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.search_widget);
97
98        Bundle widgetAppData = new Bundle();
99        widgetAppData.putString(SOURCE, WIDGET_SEARCH_SOURCE);
100
101        // Text field
102        Intent qsbIntent = new Intent(Intent.ACTION_MAIN);
103        qsbIntent.setClass(context, SearchActivity.class);
104        qsbIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
105        qsbIntent.putExtra(SearchManager.APP_DATA, widgetAppData);
106        PendingIntent textPendingIntent = PendingIntent.getActivity(context, 0, qsbIntent, 0);
107        views.setOnClickPendingIntent(R.id.search_widget_text, textPendingIntent);
108
109        // Voice search button. Only shown if voice search is available.
110        Intent voiceSearchIntent = new Intent(RecognizerIntent.ACTION_WEB_SEARCH);
111        voiceSearchIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
112        voiceSearchIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
113                RecognizerIntent.LANGUAGE_MODEL_WEB_SEARCH);
114        // TODO: Does VoiceSearch actually look at APP_DATA?
115        voiceSearchIntent.putExtra(SearchManager.APP_DATA, widgetAppData);
116        if (voiceSearchIntent.resolveActivity(context.getPackageManager()) != null) {
117            PendingIntent voicePendingIntent =
118                PendingIntent.getActivity(context, 0, voiceSearchIntent, 0);
119            views.setOnClickPendingIntent(R.id.search_widget_voice_btn, voicePendingIntent);
120            views.setViewVisibility(R.id.search_widget_voice_btn, View.VISIBLE);
121        } else {
122            views.setViewVisibility(R.id.search_widget_voice_btn, View.GONE);
123        }
124
125        // Shortcuts
126        if (SHOW_SHORTCUT_IN_WIDGET) {
127            bindShortcuts(context, views);
128        }
129
130        appWidgetManager.updateAppWidget(appWidgetIds, views);
131    }
132
133    private void bindShortcuts(Context context, RemoteViews views) {
134        ShortcutRepository shortcutRepo = getShortcutRepository(context);
135        SuggestionCursor shortcuts = shortcutRepo.getShortcutsForQuery("");
136        try {
137            if (shortcuts != null && shortcuts.getCount() > 0) {
138                shortcuts.moveTo(0);
139                RemoteViews shortcutView = new RemoteViews(context.getPackageName(),
140                        R.layout.widget_suggestion);
141                bindRemoteViewSuggestion(context, shortcutView, shortcuts);
142                views.addView(R.id.widget_shortcuts, shortcutView);
143                views.setViewVisibility(R.id.widget_shortcuts, View.VISIBLE);
144            } else {
145                if (DBG) Log.d(TAG, "No shortcuts, hiding drop-down.");
146                views.setViewVisibility(R.id.widget_shortcuts, View.GONE);
147            }
148        } finally {
149            if (shortcuts != null) {
150                shortcuts.close();
151            }
152        }
153    }
154
155    private void bindRemoteViewSuggestion(Context context, RemoteViews views,
156            SuggestionCursor suggestion) {
157        CharSequence text1 = suggestion.getSuggestionFormattedText1();
158        CharSequence text2 = suggestion.getSuggestionFormattedText2();
159        Uri icon1 = suggestion.getIconUri(suggestion.getSuggestionIcon1());
160        if (icon1 == null) {
161            icon1 = suggestion.getSourceIconUri();
162        }
163        Uri icon2 = suggestion.getIconUri(suggestion.getSuggestionIcon2());
164        PendingIntent pendingIntent = getWidgetSuggestionIntent(context, suggestion);
165        if (DBG) {
166            Log.d(TAG, "Adding shortcut to widget: text1=" + text1 + ",text2=" + text2
167                    + ",icon1=" + icon1 + ",icon2=" + icon2);
168            Log.d(TAG, "    intent=" + pendingIntent);
169        }
170        setText1(views, text1);
171        setIcon1(views, icon1);
172        setPendingIntent(views, pendingIntent);
173    }
174
175    private PendingIntent getWidgetSuggestionIntent(Context context, SuggestionCursor suggestion) {
176        Bundle widgetAppData = new Bundle();
177        widgetAppData.putString(SOURCE, WIDGET_SEARCH_SHORTCUT_SOURCE);
178        Intent intent = suggestion.getSuggestionIntent(context, widgetAppData,
179                KeyEvent.KEYCODE_UNKNOWN, null);
180        return PendingIntent.getActivity(context, 0, intent, 0);
181    }
182
183    private void setText1(RemoteViews views, CharSequence text) {
184        views.setCharSequence(R.id.text1, "setText", text);
185    }
186
187    private void setIcon1(RemoteViews views, Uri icon) {
188        views.setImageViewUri(R.id.icon1, icon);
189    }
190
191    private void setPendingIntent(RemoteViews views, PendingIntent pendingIntent) {
192        views.setOnClickPendingIntent(R.id.widget_suggestion, pendingIntent);
193    }
194
195    private QsbApplication getQsbApplication(Context context) {
196        return (QsbApplication) context.getApplicationContext();
197    }
198
199    private ShortcutRepository getShortcutRepository(Context context) {
200        return getQsbApplication(context).getShortcutRepository();
201    }
202
203}
204