1 /* 2 * Copyright (C) 2017 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.settings.intelligence.search.query; 18 19 import static com.android.settings.intelligence.search.query.DatabaseResultTask.BASE_RANKS; 20 import static com.android.settings.intelligence.search.SearchResult.TOP_RANK; 21 22 import android.content.Context; 23 import android.content.pm.PackageManager; 24 import android.content.res.Resources; 25 import android.database.Cursor; 26 import android.graphics.drawable.Drawable; 27 import android.os.BadParcelableException; 28 import android.text.TextUtils; 29 import android.util.Log; 30 import android.view.ContextThemeWrapper; 31 32 import com.android.settings.intelligence.R; 33 import com.android.settings.intelligence.search.ResultPayload; 34 import com.android.settings.intelligence.search.ResultPayloadUtils; 35 import com.android.settings.intelligence.search.SearchResult; 36 import com.android.settings.intelligence.search.indexing.IndexDatabaseHelper; 37 import com.android.settings.intelligence.search.sitemap.SiteMapManager; 38 39 import java.util.Arrays; 40 import java.util.HashMap; 41 import java.util.HashSet; 42 import java.util.List; 43 import java.util.Map; 44 import java.util.Set; 45 46 /** 47 * Controller to Build search results from {@link Cursor} Objects. 48 * 49 * Each converted {@link Cursor} has the following fields: 50 * - String Title 51 * - String Summary 52 * - int rank 53 * - {@link Drawable} icon 54 * - {@link ResultPayload} payload 55 */ 56 public class CursorToSearchResultConverter { 57 58 private static final String TAG = "CursorConverter"; 59 60 private final Context mContext; 61 62 private final int LONG_TITLE_LENGTH = 20; 63 64 private static final String[] whiteList = { 65 "main_toggle_wifi", 66 "main_toggle_bluetooth", 67 "main_toggle_bluetooth_obsolete", 68 "toggle_airplane", 69 "tether_settings", 70 "battery_saver", 71 "toggle_nfc", 72 "restrict_background", 73 "data_usage_enable", 74 "button_roaming_key", 75 }; 76 private static final Set<String> prioritySettings = new HashSet(Arrays.asList(whiteList)); 77 78 CursorToSearchResultConverter(Context context)79 public CursorToSearchResultConverter(Context context) { 80 mContext = context; 81 } 82 convertCursor(Cursor cursorResults, int baseRank, SiteMapManager siteMapManager)83 public Set<SearchResult> convertCursor(Cursor cursorResults, int baseRank, 84 SiteMapManager siteMapManager) { 85 if (cursorResults == null) { 86 return null; 87 } 88 final Map<String, Context> contextMap = new HashMap<>(); 89 final Set<SearchResult> results = new HashSet<>(); 90 91 while (cursorResults.moveToNext()) { 92 SearchResult result = buildSingleSearchResultFromCursor(siteMapManager, 93 contextMap, cursorResults, baseRank); 94 if (result != null) { 95 results.add(result); 96 } 97 } 98 return results; 99 } 100 getUnmarshalledPayload(byte[] marshalledPayload, int payloadType)101 public static ResultPayload getUnmarshalledPayload(byte[] marshalledPayload, 102 int payloadType) { 103 try { 104 switch (payloadType) { 105 case ResultPayload.PayloadType.INTENT: 106 return ResultPayloadUtils.unmarshall(marshalledPayload, 107 ResultPayload.CREATOR); 108 // TODO REFACTOR (b/62807132) Re-add inline 109 // case ResultPayload.PayloadType.INLINE_SWITCH: 110 // return ResultPayloadUtils.unmarshall(marshalledPayload, 111 // InlineSwitchPayload.CREATOR); 112 // case ResultPayload.PayloadType.INLINE_LIST: 113 // return ResultPayloadUtils.unmarshall(marshalledPayload, 114 // InlineListPayload.CREATOR); 115 } 116 } catch (BadParcelableException e) { 117 Log.w(TAG, "Error creating parcelable: " + e); 118 } 119 return null; 120 } 121 buildSingleSearchResultFromCursor(SiteMapManager siteMapManager, Map<String, Context> contextMap, Cursor cursor, int baseRank)122 private SearchResult buildSingleSearchResultFromCursor(SiteMapManager siteMapManager, 123 Map<String, Context> contextMap, Cursor cursor, int baseRank) { 124 final String pkgName = cursor.getString(cursor.getColumnIndexOrThrow( 125 IndexDatabaseHelper.IndexColumns.DATA_PACKAGE)); 126 final String title = cursor.getString(cursor.getColumnIndexOrThrow( 127 IndexDatabaseHelper.IndexColumns.DATA_TITLE)); 128 final String summaryOn = cursor.getString(cursor.getColumnIndex( 129 IndexDatabaseHelper.IndexColumns.DATA_SUMMARY_ON)); 130 final String key = cursor.getString(cursor.getColumnIndexOrThrow( 131 IndexDatabaseHelper.IndexColumns.DATA_KEY_REF)); 132 final String iconResStr = cursor.getString(cursor.getColumnIndexOrThrow( 133 IndexDatabaseHelper.IndexColumns.ICON)); 134 final int payloadType = cursor.getInt(cursor.getColumnIndexOrThrow( 135 IndexDatabaseHelper.IndexColumns.PAYLOAD_TYPE)); 136 final byte[] marshalledPayload = cursor.getBlob(cursor.getColumnIndexOrThrow( 137 IndexDatabaseHelper.IndexColumns.PAYLOAD)); 138 final ResultPayload payload = getUnmarshalledPayload(marshalledPayload, payloadType); 139 140 final List<String> breadcrumbs = getBreadcrumbs(siteMapManager, cursor); 141 final int rank = getRank(title, baseRank, key); 142 final Drawable icon = getIconForPackage(contextMap, pkgName, iconResStr); 143 144 final SearchResult.Builder builder = new SearchResult.Builder() 145 .setDataKey(key) 146 .setTitle(title) 147 .setSummary(summaryOn) 148 .addBreadcrumbs(breadcrumbs) 149 .setRank(rank) 150 .setIcon(icon) 151 .setPayload(payload); 152 return builder.build(); 153 } 154 getIconForPackage(Map<String, Context> contextMap, String pkgName, String iconResStr)155 private Drawable getIconForPackage(Map<String, Context> contextMap, String pkgName, 156 String iconResStr) { 157 if (TextUtils.isEmpty(pkgName)) { 158 return null; 159 } 160 final int iconId = TextUtils.isEmpty(iconResStr) ? 0 : Integer.parseInt(iconResStr); 161 if (iconId == 0) { 162 return null; 163 } 164 Context packageContext = contextMap.get(pkgName); 165 if (packageContext == null) { 166 try { 167 final Context themedAppContext = new ContextThemeWrapper( 168 mContext, R.style.Theme_Settings); 169 packageContext = new ContextThemeWrapper( 170 themedAppContext.createPackageContext(pkgName, 0), 171 themedAppContext.getTheme()); 172 contextMap.put(pkgName, packageContext); 173 } catch (PackageManager.NameNotFoundException e) { 174 Log.e(TAG, "Cannot create Context for package: " + pkgName); 175 return null; 176 } 177 } 178 try { 179 final Drawable drawable = packageContext.getDrawable(iconId); 180 Log.d(TAG, "Returning icon, id :" + iconId); 181 return drawable; 182 } catch (Resources.NotFoundException nfe) { 183 Log.w(TAG, "Cannot get icon, pkg/id :" + pkgName + "/" + iconId); 184 return null; 185 } 186 } 187 getBreadcrumbs(SiteMapManager siteMapManager, Cursor cursor)188 private List<String> getBreadcrumbs(SiteMapManager siteMapManager, Cursor cursor) { 189 final String screenTitle = cursor.getString(cursor.getColumnIndexOrThrow( 190 IndexDatabaseHelper.IndexColumns.SCREEN_TITLE)); 191 final String screenClass = cursor.getString(cursor.getColumnIndexOrThrow( 192 IndexDatabaseHelper.IndexColumns.CLASS_NAME)); 193 return siteMapManager == null ? null : siteMapManager.buildBreadCrumb(mContext, 194 screenClass, screenTitle); 195 } 196 197 /** 198 * Uses the breadcrumbs to determine the offset to the base rank. 199 * There are three checks 200 * A) If the result is prioritized and the highest base level 201 * B) If the query matches the highest level menu title 202 * C) If the query is longer than 20 203 * 204 * If the query matches A, set it to TOP_RANK 205 * If the query matches B, the offset is 0. 206 * If the query matches C, the offset is 1 207 * 208 * @param title of the result. 209 * @param baseRank of the result. Lower if it's a better result. 210 */ getRank(String title, int baseRank, String key)211 private int getRank(String title, int baseRank, String key) { 212 // The result can only be prioritized if it is a top ranked result. 213 if (prioritySettings.contains(key) && baseRank < BASE_RANKS[1]) { 214 return TOP_RANK; 215 } 216 if (title.length() > LONG_TITLE_LENGTH) { 217 return baseRank + 1; 218 } 219 return baseRank; 220 } 221 }