blob: 1ec30ba68dae027fa228005b03809371dc3538cf [file] [log] [blame]
package com.android.launcher3;
import android.appwidget.AppWidgetHost;
import android.appwidget.AppWidgetManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.res.Resources;
import android.content.res.XmlResourceParser;
import android.os.Bundle;
import android.text.TextUtils;
import android.util.ArrayMap;
import android.util.Log;
import com.android.launcher3.LauncherSettings.Favorites;
import com.android.launcher3.util.Thunk;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.List;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
/**
* Implements the layout parser with rules for internal layouts and partner layouts.
*/
public class DefaultLayoutParser extends AutoInstallsLayout {
private static final String TAG = "DefaultLayoutParser";
protected static final String TAG_RESOLVE = "resolve";
private static final String TAG_FAVORITES = "favorites";
protected static final String TAG_FAVORITE = "favorite";
private static final String TAG_APPWIDGET = "appwidget";
protected static final String TAG_SHORTCUT = "shortcut";
private static final String TAG_FOLDER = "folder";
private static final String TAG_PARTNER_FOLDER = "partner-folder";
protected static final String ATTR_URI = "uri";
private static final String ATTR_CONTAINER = "container";
private static final String ATTR_SCREEN = "screen";
private static final String ATTR_FOLDER_ITEMS = "folderItems";
// TODO: Remove support for this broadcast, instead use widget options to send bind time options
private static final String ACTION_APPWIDGET_DEFAULT_WORKSPACE_CONFIGURE =
"com.android.launcher.action.APPWIDGET_DEFAULT_WORKSPACE_CONFIGURE";
public DefaultLayoutParser(Context context, AppWidgetHost appWidgetHost,
LayoutParserCallback callback, Resources sourceRes, int layoutId) {
super(context, appWidgetHost, callback, sourceRes, layoutId, TAG_FAVORITES);
}
@Override
protected ArrayMap<String, TagParser> getFolderElementsMap() {
return getFolderElementsMap(mSourceRes);
}
@Thunk ArrayMap<String, TagParser> getFolderElementsMap(Resources res) {
ArrayMap<String, TagParser> parsers = new ArrayMap<>();
parsers.put(TAG_FAVORITE, new AppShortcutWithUriParser());
parsers.put(TAG_SHORTCUT, new UriShortcutParser(res));
return parsers;
}
@Override
protected ArrayMap<String, TagParser> getLayoutElementsMap() {
ArrayMap<String, TagParser> parsers = new ArrayMap<>();
parsers.put(TAG_FAVORITE, new AppShortcutWithUriParser());
parsers.put(TAG_APPWIDGET, new AppWidgetParser());
parsers.put(TAG_SHORTCUT, new UriShortcutParser(mSourceRes));
parsers.put(TAG_RESOLVE, new ResolveParser());
parsers.put(TAG_FOLDER, new MyFolderParser());
parsers.put(TAG_PARTNER_FOLDER, new PartnerFolderParser());
return parsers;
}
@Override
protected void parseContainerAndScreen(XmlResourceParser parser, long[] out) {
out[0] = LauncherSettings.Favorites.CONTAINER_DESKTOP;
String strContainer = getAttributeValue(parser, ATTR_CONTAINER);
if (strContainer != null) {
out[0] = Long.valueOf(strContainer);
}
out[1] = Long.parseLong(getAttributeValue(parser, ATTR_SCREEN));
}
/**
* AppShortcutParser which also supports adding URI based intents
*/
public class AppShortcutWithUriParser extends AppShortcutParser {
@Override
protected long invalidPackageOrClass(XmlResourceParser parser) {
final String uri = getAttributeValue(parser, ATTR_URI);
if (TextUtils.isEmpty(uri)) {
Log.e(TAG, "Skipping invalid <favorite> with no component or uri");
return -1;
}
final Intent metaIntent;
try {
metaIntent = Intent.parseUri(uri, 0);
} catch (URISyntaxException e) {
Log.e(TAG, "Unable to add meta-favorite: " + uri, e);
return -1;
}
ResolveInfo resolved = mPackageManager.resolveActivity(metaIntent,
PackageManager.MATCH_DEFAULT_ONLY);
final List<ResolveInfo> appList = mPackageManager.queryIntentActivities(
metaIntent, PackageManager.MATCH_DEFAULT_ONLY);
// Verify that the result is an app and not just the resolver dialog asking which
// app to use.
if (wouldLaunchResolverActivity(resolved, appList)) {
// If only one of the results is a system app then choose that as the default.
final ResolveInfo systemApp = getSingleSystemActivity(appList);
if (systemApp == null) {
// There is no logical choice for this meta-favorite, so rather than making
// a bad choice just add nothing.
Log.w(TAG, "No preference or single system activity found for "
+ metaIntent.toString());
return -1;
}
resolved = systemApp;
}
final ActivityInfo info = resolved.activityInfo;
final Intent intent = mPackageManager.getLaunchIntentForPackage(info.packageName);
if (intent == null) {
return -1;
}
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
return addShortcut(info.loadLabel(mPackageManager).toString(), intent,
Favorites.ITEM_TYPE_APPLICATION);
}
private ResolveInfo getSingleSystemActivity(List<ResolveInfo> appList) {
ResolveInfo systemResolve = null;
final int N = appList.size();
for (int i = 0; i < N; ++i) {
try {
ApplicationInfo info = mPackageManager.getApplicationInfo(
appList.get(i).activityInfo.packageName, 0);
if ((info.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
if (systemResolve != null) {
return null;
} else {
systemResolve = appList.get(i);
}
}
} catch (PackageManager.NameNotFoundException e) {
Log.w(TAG, "Unable to get info about resolve results", e);
return null;
}
}
return systemResolve;
}
private boolean wouldLaunchResolverActivity(ResolveInfo resolved,
List<ResolveInfo> appList) {
// If the list contains the above resolved activity, then it can't be
// ResolverActivity itself.
for (int i = 0; i < appList.size(); ++i) {
ResolveInfo tmp = appList.get(i);
if (tmp.activityInfo.name.equals(resolved.activityInfo.name)
&& tmp.activityInfo.packageName.equals(resolved.activityInfo.packageName)) {
return false;
}
}
return true;
}
}
/**
* Shortcut parser which allows any uri and not just web urls.
*/
public class UriShortcutParser extends ShortcutParser {
public UriShortcutParser(Resources iconRes) {
super(iconRes);
}
@Override
protected Intent parseIntent(XmlResourceParser parser) {
String uri = null;
try {
uri = getAttributeValue(parser, ATTR_URI);
return Intent.parseUri(uri, 0);
} catch (URISyntaxException e) {
Log.w(TAG, "Shortcut has malformed uri: " + uri);
return null; // Oh well
}
}
}
/**
* Contains a list of <favorite> nodes, and accepts the first successfully parsed node.
*/
public class ResolveParser implements TagParser {
private final AppShortcutWithUriParser mChildParser = new AppShortcutWithUriParser();
@Override
public long parseAndAdd(XmlResourceParser parser) throws XmlPullParserException,
IOException {
final int groupDepth = parser.getDepth();
int type;
long addedId = -1;
while ((type = parser.next()) != XmlPullParser.END_TAG ||
parser.getDepth() > groupDepth) {
if (type != XmlPullParser.START_TAG || addedId > -1) {
continue;
}
final String fallback_item_name = parser.getName();
if (TAG_FAVORITE.equals(fallback_item_name)) {
addedId = mChildParser.parseAndAdd(parser);
} else {
Log.e(TAG, "Fallback groups can contain only favorites, found "
+ fallback_item_name);
}
}
return addedId;
}
}
/**
* A parser which adds a folder whose contents come from partner apk.
*/
@Thunk class PartnerFolderParser implements TagParser {
@Override
public long parseAndAdd(XmlResourceParser parser) throws XmlPullParserException,
IOException {
// Folder contents come from an external XML resource
final Partner partner = Partner.get(mPackageManager);
if (partner != null) {
final Resources partnerRes = partner.getResources();
final int resId = partnerRes.getIdentifier(Partner.RES_FOLDER,
"xml", partner.getPackageName());
if (resId != 0) {
final XmlResourceParser partnerParser = partnerRes.getXml(resId);
beginDocument(partnerParser, TAG_FOLDER);
FolderParser folderParser = new FolderParser(getFolderElementsMap(partnerRes));
return folderParser.parseAndAdd(partnerParser);
}
}
return -1;
}
}
/**
* An extension of FolderParser which allows adding items from a different xml.
*/
@Thunk class MyFolderParser extends FolderParser {
@Override
public long parseAndAdd(XmlResourceParser parser) throws XmlPullParserException,
IOException {
final int resId = getAttributeResourceValue(parser, ATTR_FOLDER_ITEMS, 0);
if (resId != 0) {
parser = mSourceRes.getXml(resId);
beginDocument(parser, TAG_FOLDER);
}
return super.parseAndAdd(parser);
}
}
/**
* AppWidget parser which enforces that the app is already installed when the layout is parsed.
*/
protected class AppWidgetParser extends PendingWidgetParser {
@Override
protected long verifyAndInsert(ComponentName cn, Bundle extras) {
try {
mPackageManager.getReceiverInfo(cn, 0);
} catch (Exception e) {
String[] packages = mPackageManager.currentToCanonicalPackageNames(
new String[] { cn.getPackageName() });
cn = new ComponentName(packages[0], cn.getClassName());
try {
mPackageManager.getReceiverInfo(cn, 0);
} catch (Exception e1) {
Log.d(TAG, "Can't find widget provider: " + cn.getClassName());
return -1;
}
}
final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(mContext);
long insertedId = -1;
try {
int appWidgetId = mAppWidgetHost.allocateAppWidgetId();
if (!appWidgetManager.bindAppWidgetIdIfAllowed(appWidgetId, cn)) {
Log.e(TAG, "Unable to bind app widget id " + cn);
mAppWidgetHost.deleteAppWidgetId(appWidgetId);
return -1;
}
mValues.put(Favorites.APPWIDGET_ID, appWidgetId);
mValues.put(Favorites.APPWIDGET_PROVIDER, cn.flattenToString());
mValues.put(Favorites._ID, mCallback.generateNewItemId());
insertedId = mCallback.insertAndCheck(mDb, mValues);
if (insertedId < 0) {
mAppWidgetHost.deleteAppWidgetId(appWidgetId);
return insertedId;
}
// Send a broadcast to configure the widget
if (!extras.isEmpty()) {
Intent intent = new Intent(ACTION_APPWIDGET_DEFAULT_WORKSPACE_CONFIGURE);
intent.setComponent(cn);
intent.putExtras(extras);
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
mContext.sendBroadcast(intent);
}
} catch (RuntimeException ex) {
Log.e(TAG, "Problem allocating appWidgetId", ex);
}
return insertedId;
}
}
}