diff options
Diffstat (limited to 'src/com/android/launcher3/LauncherBackupHelper.java')
| -rw-r--r-- | src/com/android/launcher3/LauncherBackupHelper.java | 379 |
1 files changed, 230 insertions, 149 deletions
diff --git a/src/com/android/launcher3/LauncherBackupHelper.java b/src/com/android/launcher3/LauncherBackupHelper.java index 437434748..8c6fedbdc 100644 --- a/src/com/android/launcher3/LauncherBackupHelper.java +++ b/src/com/android/launcher3/LauncherBackupHelper.java @@ -19,14 +19,16 @@ import android.app.backup.BackupDataInputStream; import android.app.backup.BackupDataOutput; import android.app.backup.BackupHelper; import android.app.backup.BackupManager; -import android.appwidget.AppWidgetManager; -import android.appwidget.AppWidgetProviderInfo; import android.content.ComponentName; import android.content.ContentResolver; import android.content.ContentValues; import android.content.Context; import android.content.Intent; +import android.content.pm.ActivityInfo; +import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; +import android.content.pm.ResolveInfo; +import android.content.res.XmlResourceParser; import android.database.Cursor; import android.graphics.Bitmap; import android.graphics.BitmapFactory; @@ -49,18 +51,20 @@ import com.android.launcher3.backup.BackupProtos.Screen; import com.android.launcher3.backup.BackupProtos.Widget; import com.android.launcher3.compat.UserHandleCompat; import com.android.launcher3.compat.UserManagerCompat; +import com.android.launcher3.util.Thunk; import com.google.protobuf.nano.InvalidProtocolBufferNanoException; import com.google.protobuf.nano.MessageNano; -import java.io.ByteArrayOutputStream; +import org.xmlpull.v1.XmlPullParser; +import org.xmlpull.v1.XmlPullParserException; + import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.net.URISyntaxException; import java.util.ArrayList; -import java.util.HashMap; +import java.util.Arrays; import java.util.HashSet; -import java.util.List; import java.util.zip.CRC32; /** @@ -71,7 +75,7 @@ public class LauncherBackupHelper implements BackupHelper { private static final boolean VERBOSE = LauncherBackupAgentHelper.VERBOSE; private static final boolean DEBUG = LauncherBackupAgentHelper.DEBUG; - private static final int BACKUP_VERSION = 2; + private static final int BACKUP_VERSION = 3; private static final int MAX_JOURNAL_SIZE = 1000000; // Journal key is such that it is always smaller than any dynamically generated @@ -84,11 +88,6 @@ public class LauncherBackupHelper implements BackupHelper { /** widgets contain previews, which are very large, dribble them out */ private static final int MAX_WIDGETS_PER_PASS = 5; - private static final int IMAGE_COMPRESSION_QUALITY = 75; - - private static final Bitmap.CompressFormat IMAGE_FORMAT = - android.graphics.Bitmap.CompressFormat.PNG; - private static final String[] FAVORITE_PROJECTION = { Favorites._ID, // 0 Favorites.MODIFIED, // 1 @@ -136,24 +135,33 @@ public class LauncherBackupHelper implements BackupHelper { private static final int SCREEN_RANK_INDEX = 2; - private final Context mContext; + @Thunk final Context mContext; private final HashSet<String> mExistingKeys; private final ArrayList<Key> mKeys; + private final ItemTypeMatcher[] mItemTypeMatchers; + private final long mUserSerial; - private IconCache mIconCache; private BackupManager mBackupManager; - private HashMap<ComponentName, AppWidgetProviderInfo> mWidgetMap; private byte[] mBuffer = new byte[512]; private long mLastBackupRestoreTime; + private boolean mBackupDataWasUpdated; + + private IconCache mIconCache; + private DeviceProfieData mDeviceProfileData; + private InvariantDeviceProfile mIdp; - private DeviceProfieData mCurrentProfile; boolean restoreSuccessful; + int restoredBackupVersion = 1; public LauncherBackupHelper(Context context) { mContext = context; mExistingKeys = new HashSet<String>(); mKeys = new ArrayList<Key>(); restoreSuccessful = true; + mItemTypeMatchers = new ItemTypeMatcher[CommonAppTypeParser.SUPPORTED_TYPE_COUNT]; + + UserManagerCompat userManager = UserManagerCompat.getInstance(mContext); + mUserSerial = userManager.getSerialNumberForUser(UserHandleCompat.myUserHandle()); } private void dataChanged() { @@ -171,6 +179,7 @@ public class LauncherBackupHelper implements BackupHelper { mExistingKeys.add(keyToBackupKey(key)); } } + restoredBackupVersion = journal.backupVersion; } /** @@ -191,10 +200,19 @@ public class LauncherBackupHelper implements BackupHelper { Journal in = readJournal(oldState); if (!launcherIsReady()) { + dataChanged(); // Perform backup later. writeJournal(newState, in); return; } + + if (mDeviceProfileData == null) { + LauncherAppState app = LauncherAppState.getInstance(); + mIdp = app.getInvariantDeviceProfile(); + mDeviceProfileData = initDeviceProfileData(mIdp); + mIconCache = app.getIconCache(); + } + Log.v(TAG, "lastBackupTime = " + in.t); mKeys.clear(); applyJournal(in); @@ -202,7 +220,7 @@ public class LauncherBackupHelper implements BackupHelper { // Record the time before performing backup so that entries edited while the backup // was going on, do not get missed in next backup. long newBackupTime = System.currentTimeMillis(); - + mBackupDataWasUpdated = false; try { backupFavorites(data); backupScreens(data); @@ -220,16 +238,30 @@ public class LauncherBackupHelper implements BackupHelper { for (String deleted: mExistingKeys) { if (VERBOSE) Log.v(TAG, "dropping deleted item " + deleted); data.writeEntityHeader(deleted, -1); + mBackupDataWasUpdated = true; } mExistingKeys.clear(); - mLastBackupRestoreTime = newBackupTime; + if (!mBackupDataWasUpdated) { + // Check if any metadata has changed + mBackupDataWasUpdated = (in.profile == null) + || !Arrays.equals(DeviceProfieData.toByteArray(in.profile), + DeviceProfieData.toByteArray(mDeviceProfileData)) + || (in.backupVersion != BACKUP_VERSION) + || (in.appVersion != getAppVersion()); + } - // We store the journal at two places. - // 1) Storing it in newState allows us to do partial backups by comparing old state - // 2) Storing it in backup data allows us to validate keys during restore - Journal state = getCurrentStateJournal(); - writeRowToBackup(JOURNAL_KEY, state, data); + if (mBackupDataWasUpdated) { + mLastBackupRestoreTime = newBackupTime; + + // We store the journal at two places. + // 1) Storing it in newState allows us to do partial backups by comparing old state + // 2) Storing it in backup data allows us to validate keys during restore + Journal state = getCurrentStateJournal(); + writeRowToBackup(JOURNAL_KEY, state, data); + } else { + if (DEBUG) Log.d(TAG, "Nothing was written during backup"); + } } catch (IOException e) { Log.e(TAG, "launcher backup has failed", e); } @@ -242,8 +274,7 @@ public class LauncherBackupHelper implements BackupHelper { * to this device. */ private boolean isBackupCompatible(Journal oldState) { - DeviceProfieData currentProfile = getDeviceProfieData(); - + DeviceProfieData currentProfile = mDeviceProfileData; DeviceProfieData oldProfile = oldState.profile; if (oldProfile == null || oldProfile.desktopCols == 0) { @@ -277,6 +308,14 @@ public class LauncherBackupHelper implements BackupHelper { return; } + if (mDeviceProfileData == null) { + // This call does not happen on a looper thread. So LauncherAppState + // can't be created . Instead initialize required dependencies directly. + mIdp = new InvariantDeviceProfile(mContext); + mDeviceProfileData = initDeviceProfileData(mIdp); + mIconCache = new IconCache(mContext, mIdp); + } + int dataSize = data.size(); if (mBuffer.length < dataSize) { mBuffer = new byte[dataSize]; @@ -351,7 +390,7 @@ public class LauncherBackupHelper implements BackupHelper { journal.key = mKeys.toArray(new BackupProtos.Key[mKeys.size()]); journal.appVersion = getAppVersion(); journal.backupVersion = BACKUP_VERSION; - journal.profile = getDeviceProfieData(); + journal.profile = mDeviceProfileData; return journal; } @@ -364,23 +403,13 @@ public class LauncherBackupHelper implements BackupHelper { } } - /** - * @return the current device profile information. - */ - private DeviceProfieData getDeviceProfieData() { - if (mCurrentProfile != null) { - return mCurrentProfile; - } - final Context applicationContext = mContext.getApplicationContext(); - DeviceProfile profile = LauncherAppState.createDynamicGrid(applicationContext, null) - .getDeviceProfile(); - - mCurrentProfile = new DeviceProfieData(); - mCurrentProfile.desktopRows = profile.numRows; - mCurrentProfile.desktopCols = profile.numColumns; - mCurrentProfile.hotseatCount = profile.numHotseatIcons; - mCurrentProfile.allappsRank = profile.hotseatAllAppsRank; - return mCurrentProfile; + private DeviceProfieData initDeviceProfileData(InvariantDeviceProfile profile) { + DeviceProfieData data = new DeviceProfieData(); + data.desktopRows = profile.numRows; + data.desktopCols = profile.numColumns; + data.hotseatCount = profile.numHotseatIcons; + data.allappsRank = profile.hotseatAllAppsRank; + return data; } /** @@ -430,7 +459,7 @@ public class LauncherBackupHelper implements BackupHelper { ContentResolver cr = mContext.getContentResolver(); ContentValues values = unpackFavorite(buffer, dataSize); - cr.insert(Favorites.CONTENT_URI_NO_NOTIFICATION, values); + cr.insert(Favorites.CONTENT_URI, values); } /** @@ -491,11 +520,6 @@ public class LauncherBackupHelper implements BackupHelper { */ private void backupIcons(BackupDataOutput data) throws IOException { // persist icons that haven't been persisted yet - if (!initializeIconCache()) { - dataChanged(); // try again later - if (DEBUG) Log.d(TAG, "Launcher is not initialized, delaying icon backup"); - return; - } final ContentResolver cr = mContext.getContentResolver(); final int dpi = mContext.getResources().getDisplayMetrics().densityDpi; final UserHandleCompat myUserHandle = UserHandleCompat.myUserHandle(); @@ -579,7 +603,8 @@ public class LauncherBackupHelper implements BackupHelper { Log.w(TAG, "failed to unpack icon for " + key.name); } if (VERBOSE) Log.v(TAG, "saving restored icon as: " + key.name); - IconCache.preloadIcon(mContext, ComponentName.unflattenFromString(key.name), icon, res.dpi); + mIconCache.preloadIcon(ComponentName.unflattenFromString(key.name), icon, res.dpi, + "" /* label */, mUserSerial); } /** @@ -591,17 +616,8 @@ public class LauncherBackupHelper implements BackupHelper { */ private void backupWidgets(BackupDataOutput data) throws IOException { // persist static widget info that hasn't been persisted yet - final LauncherAppState appState = LauncherAppState.getInstanceNoCreate(); - if (appState == null || !initializeIconCache()) { - Log.w(TAG, "Failed to get icon cache during restore"); - return; - } final ContentResolver cr = mContext.getContentResolver(); - final WidgetPreviewLoader previewLoader = new WidgetPreviewLoader(mContext); - final PagedViewCellLayout widgetSpacingLayout = new PagedViewCellLayout(mContext); final int dpi = mContext.getResources().getDisplayMetrics().densityDpi; - final DeviceProfile profile = appState.getDynamicGrid().getDeviceProfile(); - if (DEBUG) Log.d(TAG, "cellWidthPx: " + profile.cellWidthPx); int backupWidgetCount = 0; String where = Favorites.ITEM_TYPE + "=" + Favorites.ITEM_TYPE_APPWIDGET + " AND " @@ -613,8 +629,6 @@ public class LauncherBackupHelper implements BackupHelper { while(cursor.moveToNext()) { final long id = cursor.getLong(ID_INDEX); final String providerName = cursor.getString(APPWIDGET_PROVIDER_INDEX); - final int spanX = cursor.getInt(SPANX_INDEX); - final int spanY = cursor.getInt(SPANY_INDEX); final ComponentName provider = ComponentName.unflattenFromString(providerName); Key key = null; String backupKey = null; @@ -624,7 +638,7 @@ public class LauncherBackupHelper implements BackupHelper { } else { Log.w(TAG, "empty intent on appwidget: " + id); } - if (mExistingKeys.contains(backupKey)) { + if (mExistingKeys.contains(backupKey) && restoredBackupVersion >= BACKUP_VERSION) { if (DEBUG) Log.d(TAG, "already saved widget " + backupKey); // remember that we already backed this up previously @@ -633,9 +647,8 @@ public class LauncherBackupHelper implements BackupHelper { if (DEBUG) Log.d(TAG, "I can count this high: " + backupWidgetCount); if (backupWidgetCount < MAX_WIDGETS_PER_PASS) { if (DEBUG) Log.d(TAG, "saving widget " + backupKey); - previewLoader.setPreviewSize(spanX * profile.cellWidthPx, - spanY * profile.cellHeightPx, widgetSpacingLayout); - writeRowToBackup(key, packWidget(dpi, previewLoader, mIconCache, provider), data); + UserHandleCompat user = UserHandleCompat.myUserHandle(); + writeRowToBackup(key, packWidget(dpi, provider, user), data); mKeys.add(key); backupWidgetCount ++; } else { @@ -671,8 +684,8 @@ public class LauncherBackupHelper implements BackupHelper { if (icon == null) { Log.w(TAG, "failed to unpack widget icon for " + key.name); } else { - IconCache.preloadIcon(mContext, ComponentName.unflattenFromString(widget.provider), - icon, widget.icon.dpi); + mIconCache.preloadIcon(ComponentName.unflattenFromString(widget.provider), + icon, widget.icon.dpi, widget.label, mUserSerial); } } @@ -738,6 +751,17 @@ public class LauncherBackupHelper implements BackupHelper { return checksum.getValue(); } + /** + * @return true if its an hotseat item, that can be replaced during restore. + * TODO: Extend check for folders in hotseat. + */ + private boolean isReplaceableHotseatItem(Favorite favorite) { + return favorite.container == Favorites.CONTAINER_HOTSEAT + && favorite.intent != null + && (favorite.itemType == Favorites.ITEM_TYPE_APPLICATION + || favorite.itemType == Favorites.ITEM_TYPE_SHORTCUT); + } + /** Serialize a Favorite for persistence, including a checksum wrapper. */ private Favorite packFavorite(Cursor c) { Favorite favorite = new Favorite(); @@ -749,30 +773,16 @@ public class LauncherBackupHelper implements BackupHelper { favorite.spanX = c.getInt(SPANX_INDEX); favorite.spanY = c.getInt(SPANY_INDEX); favorite.iconType = c.getInt(ICON_TYPE_INDEX); - if (favorite.iconType == Favorites.ICON_TYPE_RESOURCE) { - String iconPackage = c.getString(ICON_PACKAGE_INDEX); - if (!TextUtils.isEmpty(iconPackage)) { - favorite.iconPackage = iconPackage; - } - String iconResource = c.getString(ICON_RESOURCE_INDEX); - if (!TextUtils.isEmpty(iconResource)) { - favorite.iconResource = iconResource; - } - } - if (favorite.iconType == Favorites.ICON_TYPE_BITMAP) { - byte[] blob = c.getBlob(ICON_INDEX); - if (blob != null && blob.length > 0) { - favorite.icon = blob; - } - } + String title = c.getString(TITLE_INDEX); if (!TextUtils.isEmpty(title)) { favorite.title = title; } String intentDescription = c.getString(INTENT_INDEX); + Intent intent = null; if (!TextUtils.isEmpty(intentDescription)) { try { - Intent intent = Intent.parseUri(intentDescription, 0); + intent = Intent.parseUri(intentDescription, 0); intent.removeExtra(ItemInfo.EXTRA_PROFILE); favorite.intent = intent.toUri(0); } catch (URISyntaxException e) { @@ -786,6 +796,47 @@ public class LauncherBackupHelper implements BackupHelper { if (!TextUtils.isEmpty(appWidgetProvider)) { favorite.appWidgetProvider = appWidgetProvider; } + } else if (favorite.itemType == Favorites.ITEM_TYPE_SHORTCUT) { + if (favorite.iconType == Favorites.ICON_TYPE_RESOURCE) { + String iconPackage = c.getString(ICON_PACKAGE_INDEX); + if (!TextUtils.isEmpty(iconPackage)) { + favorite.iconPackage = iconPackage; + } + String iconResource = c.getString(ICON_RESOURCE_INDEX); + if (!TextUtils.isEmpty(iconResource)) { + favorite.iconResource = iconResource; + } + } + + byte[] blob = c.getBlob(ICON_INDEX); + if (blob != null && blob.length > 0) { + favorite.icon = blob; + } + } + + if (isReplaceableHotseatItem(favorite)) { + if (intent != null && intent.getComponent() != null) { + PackageManager pm = mContext.getPackageManager(); + ActivityInfo activity = null;; + try { + activity = pm.getActivityInfo(intent.getComponent(), 0); + } catch (NameNotFoundException e) { + Log.e(TAG, "Target not found", e); + } + if (activity == null) { + return favorite; + } + for (int i = 0; i < mItemTypeMatchers.length; i++) { + if (mItemTypeMatchers[i] == null) { + mItemTypeMatchers[i] = new ItemTypeMatcher( + CommonAppTypeParser.getResourceForItemType(i)); + } + if (mItemTypeMatchers[i].matches(activity, pm)) { + favorite.targetType = i; + break; + } + } + } } return favorite; @@ -795,6 +846,7 @@ public class LauncherBackupHelper implements BackupHelper { private ContentValues unpackFavorite(byte[] buffer, int dataSize) throws IOException { Favorite favorite = unpackProto(new Favorite(), buffer, dataSize); + ContentValues values = new ContentValues(); values.put(Favorites._ID, favorite.id); values.put(Favorites.SCREEN, favorite.screen); @@ -803,14 +855,16 @@ public class LauncherBackupHelper implements BackupHelper { values.put(Favorites.CELLY, favorite.cellY); values.put(Favorites.SPANX, favorite.spanX); values.put(Favorites.SPANY, favorite.spanY); - values.put(Favorites.ICON_TYPE, favorite.iconType); - if (favorite.iconType == Favorites.ICON_TYPE_RESOURCE) { - values.put(Favorites.ICON_PACKAGE, favorite.iconPackage); - values.put(Favorites.ICON_RESOURCE, favorite.iconResource); - } - if (favorite.iconType == Favorites.ICON_TYPE_BITMAP) { + + if (favorite.itemType == Favorites.ITEM_TYPE_SHORTCUT) { + values.put(Favorites.ICON_TYPE, favorite.iconType); + if (favorite.iconType == Favorites.ICON_TYPE_RESOURCE) { + values.put(Favorites.ICON_PACKAGE, favorite.iconPackage); + values.put(Favorites.ICON_RESOURCE, favorite.iconResource); + } values.put(Favorites.ICON, favorite.icon); } + if (!TextUtils.isEmpty(favorite.title)) { values.put(Favorites.TITLE, favorite.title); } else { @@ -826,7 +880,7 @@ public class LauncherBackupHelper implements BackupHelper { UserManagerCompat.getInstance(mContext).getSerialNumberForUser(myUserHandle); values.put(LauncherSettings.Favorites.PROFILE_ID, userSerialNumber); - DeviceProfieData currentProfile = getDeviceProfieData(); + DeviceProfieData currentProfile = mDeviceProfileData; if (favorite.itemType == Favorites.ITEM_TYPE_APPWIDGET) { if (!TextUtils.isEmpty(favorite.appWidgetProvider)) { @@ -845,8 +899,17 @@ public class LauncherBackupHelper implements BackupHelper { throw new InvalidBackupException("Widget not in screen bounds, aborting restore"); } } else { - // Let LauncherModel know we've been here. - values.put(LauncherSettings.Favorites.RESTORED, 1); + // Check if it is an hotseat item, that can be replaced. + if (isReplaceableHotseatItem(favorite) + && favorite.targetType != Favorite.TARGET_NONE + && favorite.targetType < CommonAppTypeParser.SUPPORTED_TYPE_COUNT) { + Log.e(TAG, "Added item type flag"); + values.put(LauncherSettings.Favorites.RESTORED, + 1 | CommonAppTypeParser.encodeItemTypeToFlag(favorite.targetType)); + } else { + // Let LauncherModel know we've been here. + values.put(LauncherSettings.Favorites.RESTORED, 1); + } // Verify placement if (favorite.container == Favorites.CONTAINER_HOTSEAT) { @@ -889,40 +952,35 @@ public class LauncherBackupHelper implements BackupHelper { private Resource packIcon(int dpi, Bitmap icon) { Resource res = new Resource(); res.dpi = dpi; - ByteArrayOutputStream os = new ByteArrayOutputStream(); - if (icon.compress(IMAGE_FORMAT, IMAGE_COMPRESSION_QUALITY, os)) { - res.data = os.toByteArray(); - } + res.data = Utilities.flattenBitmap(icon); return res; } /** Serialize a widget for persistence, including a checksum wrapper. */ - private Widget packWidget(int dpi, WidgetPreviewLoader previewLoader, IconCache iconCache, - ComponentName provider) { - final AppWidgetProviderInfo info = findAppWidgetProviderInfo(provider); + private Widget packWidget(int dpi, ComponentName provider, UserHandleCompat user) { + final LauncherAppWidgetProviderInfo info = + LauncherModel.getProviderInfo(mContext, provider, user); Widget widget = new Widget(); widget.provider = provider.flattenToShortString(); widget.label = info.label; widget.configure = info.configure != null; if (info.icon != 0) { widget.icon = new Resource(); - Drawable fullResIcon = iconCache.getFullResIcon(provider.getPackageName(), info.icon); + Drawable fullResIcon = mIconCache.getFullResIcon(provider.getPackageName(), info.icon); Bitmap icon = Utilities.createIconBitmap(fullResIcon, mContext); - ByteArrayOutputStream os = new ByteArrayOutputStream(); - if (icon.compress(IMAGE_FORMAT, IMAGE_COMPRESSION_QUALITY, os)) { - widget.icon.data = os.toByteArray(); - widget.icon.dpi = dpi; - } - } - if (info.previewImage != 0) { - widget.preview = new Resource(); - Bitmap preview = previewLoader.generateWidgetPreview(info, null); - ByteArrayOutputStream os = new ByteArrayOutputStream(); - if (preview.compress(IMAGE_FORMAT, IMAGE_COMPRESSION_QUALITY, os)) { - widget.preview.data = os.toByteArray(); - widget.preview.dpi = dpi; - } + widget.icon.data = Utilities.flattenBitmap(icon); + widget.icon.dpi = dpi; } + + // Calculate the spans corresponding to any one of the orientations as it should not change + // based on orientation. + int[] minSpans = CellLayout.rectToCell( + mIdp.portraitProfile, mContext, info.minResizeWidth, info.minResizeHeight, null); + widget.minSpanX = (info.resizeMode & LauncherAppWidgetProviderInfo.RESIZE_HORIZONTAL) != 0 + ? minSpans[0] : -1; + widget.minSpanY = (info.resizeMode & LauncherAppWidgetProviderInfo.RESIZE_VERTICAL) != 0 + ? minSpans[1] : -1; + return widget; } @@ -1019,6 +1077,7 @@ public class LauncherBackupHelper implements BackupHelper { byte[] blob = writeCheckedBytes(proto); data.writeEntityHeader(backupKey, blob.length); data.writeEntityData(blob, blob.length); + mBackupDataWasUpdated = true; if (VERBOSE) Log.v(TAG, "Writing New entry " + backupKey); } @@ -1067,36 +1126,6 @@ public class LauncherBackupHelper implements BackupHelper { return wrapper.payload; } - private AppWidgetProviderInfo findAppWidgetProviderInfo(ComponentName component) { - if (mWidgetMap == null) { - List<AppWidgetProviderInfo> widgets = - AppWidgetManager.getInstance(mContext).getInstalledProviders(); - mWidgetMap = new HashMap<ComponentName, AppWidgetProviderInfo>(widgets.size()); - for (AppWidgetProviderInfo info : widgets) { - mWidgetMap.put(info.provider, info); - } - } - return mWidgetMap.get(component); - } - - - private boolean initializeIconCache() { - if (mIconCache != null) { - return true; - } - - final LauncherAppState appState = LauncherAppState.getInstanceNoCreate(); - if (appState == null) { - Throwable stackTrace = new Throwable(); - stackTrace.fillInStackTrace(); - Log.w(TAG, "Failed to get app state during backup/restore", stackTrace); - return false; - } - mIconCache = appState.getIconCache(); - return mIconCache != null; - } - - /** * @return true if the launcher is in a state to support backup */ @@ -1109,9 +1138,8 @@ public class LauncherBackupHelper implements BackupHelper { } cursor.close(); - if (!initializeIconCache()) { + if (LauncherAppState.getInstanceNoCreate() == null) { // launcher services are unavailable, try again later - dataChanged(); return false; } @@ -1123,13 +1151,66 @@ public class LauncherBackupHelper implements BackupHelper { .getSerialNumberForUser(UserHandleCompat.myUserHandle()); } - private class InvalidBackupException extends IOException { - private InvalidBackupException(Throwable cause) { + @Thunk class InvalidBackupException extends IOException { + + private static final long serialVersionUID = 8931456637211665082L; + + @Thunk InvalidBackupException(Throwable cause) { super(cause); } - public InvalidBackupException(String reason) { + @Thunk InvalidBackupException(String reason) { super(reason); } } + + /** + * A class to check if an activity can handle one of the intents from a list of + * predefined intents. + */ + private class ItemTypeMatcher { + + private final ArrayList<Intent> mIntents; + + ItemTypeMatcher(int xml_res) { + mIntents = xml_res == 0 ? new ArrayList<Intent>() : parseIntents(xml_res); + } + + private ArrayList<Intent> parseIntents(int xml_res) { + ArrayList<Intent> intents = new ArrayList<Intent>(); + XmlResourceParser parser = mContext.getResources().getXml(xml_res); + try { + DefaultLayoutParser.beginDocument(parser, DefaultLayoutParser.TAG_RESOLVE); + final int depth = parser.getDepth(); + int type; + while (((type = parser.next()) != XmlPullParser.END_TAG || + parser.getDepth() > depth) && type != XmlPullParser.END_DOCUMENT) { + if (type != XmlPullParser.START_TAG) { + continue; + } else if (DefaultLayoutParser.TAG_FAVORITE.equals(parser.getName())) { + final String uri = DefaultLayoutParser.getAttributeValue( + parser, DefaultLayoutParser.ATTR_URI); + intents.add(Intent.parseUri(uri, 0)); + } + } + } catch (URISyntaxException | XmlPullParserException | IOException e) { + Log.e(TAG, "Unable to parse " + xml_res, e); + } finally { + parser.close(); + } + return intents; + } + + public boolean matches(ActivityInfo activity, PackageManager pm) { + for (Intent intent : mIntents) { + intent.setPackage(activity.packageName); + ResolveInfo info = pm.resolveActivity(intent, 0); + if (info != null && (info.activityInfo.name.equals(activity.name) + || info.activityInfo.name.equals(activity.targetActivity))) { + return true; + } + } + return false; + } + } } |