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Code Issues Packages Projects Releases Wiki Activity

Replacing hotseat icon to an appropriate system app

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> During backupi, store the hotseat target app type, based on some predefined
common system apps
> During restore, save this app type in the restore flag, if it is a hotseat app
> During first launcher load, if an app is not being restored, try to replace it
with an appropriate replacement for that type, otherwise delete it.

Bug: 18764649
Change-Id: Ic49e40bd707bd8d7de18bbab8b1e58a0a36426a2
This commit is contained in:
Sunny Goyal
2015-01-15 12:00:14 -08:00
parent 3862e4d88b
commit bb3b02f562
13 changed files with 491 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

117
src/com/android/launcher3/LauncherBackupHelper.java
View File

@@ -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;
}
}
}