diff options
Diffstat (limited to 'src/com/android/launcher3/LauncherBackupHelper.java')
| -rw-r--r-- | src/com/android/launcher3/LauncherBackupHelper.java | 117 |
1 files changed, 112 insertions, 5 deletions
diff --git a/src/com/android/launcher3/LauncherBackupHelper.java b/src/com/android/launcher3/LauncherBackupHelper.java index 32bea5baa..353bf3f00 100644 --- a/src/com/android/launcher3/LauncherBackupHelper.java +++ b/src/com/android/launcher3/LauncherBackupHelper.java @@ -19,13 +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.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; @@ -51,6 +54,9 @@ import com.android.launcher3.compat.UserManagerCompat; import com.google.protobuf.nano.InvalidProtocolBufferNanoException; import com.google.protobuf.nano.MessageNano; +import org.xmlpull.v1.XmlPullParser; +import org.xmlpull.v1.XmlPullParserException; + import java.io.ByteArrayOutputStream; import java.io.FileInputStream; import java.io.FileOutputStream; @@ -58,7 +64,6 @@ import java.io.IOException; import java.net.URISyntaxException; import java.util.ArrayList; import java.util.Arrays; -import java.util.HashMap; import java.util.HashSet; import java.util.zip.CRC32; @@ -138,6 +143,7 @@ public class LauncherBackupHelper implements BackupHelper { private final Context mContext; private final HashSet<String> mExistingKeys; private final ArrayList<Key> mKeys; + private final ItemTypeMatcher[] mItemTypeMatchers; private IconCache mIconCache; private BackupManager mBackupManager; @@ -154,6 +160,7 @@ public class LauncherBackupHelper implements BackupHelper { mExistingKeys = new HashSet<String>(); mKeys = new ArrayList<Key>(); restoreSuccessful = true; + mItemTypeMatchers = new ItemTypeMatcher[CommonAppTypeParser.SUPPORTED_TYPE_COUNT]; } private void dataChanged() { @@ -753,6 +760,17 @@ 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(); @@ -785,9 +803,10 @@ public class LauncherBackupHelper implements BackupHelper { 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) { @@ -803,6 +822,31 @@ public class LauncherBackupHelper implements BackupHelper { } } + 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; } @@ -810,6 +854,7 @@ 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); @@ -860,8 +905,17 @@ 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) { @@ -1128,6 +1182,9 @@ public class LauncherBackupHelper implements BackupHelper { } private class InvalidBackupException extends IOException { + + private static final long serialVersionUID = 8931456637211665082L; + private InvalidBackupException(Throwable cause) { super(cause); } @@ -1136,4 +1193,54 @@ public class LauncherBackupHelper implements BackupHelper { 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; + } + } } |