/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings.accounts;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import com.android.settings.SettingsPreferenceFragment;
import com.google.android.collect.Maps;
import android.accounts.Account;
import android.accounts.AccountManager;
import android.accounts.AuthenticatorDescription;
import android.accounts.OnAccountsUpdateListener;
import android.content.ContentResolver;
import android.content.Context;
import android.content.SyncAdapterType;
import android.content.SyncStatusObserver;
import android.content.pm.PackageManager;
import android.content.res.Resources;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.Handler;
import android.preference.PreferenceActivity;
import android.preference.PreferenceScreen;
import android.util.Log;
class AccountPreferenceBase extends SettingsPreferenceFragment
implements OnAccountsUpdateListener {
protected static final String TAG = "AccountSettings";
public static final String AUTHORITIES_FILTER_KEY = "authorities";
public static final String ACCOUNT_TYPES_FILTER_KEY = "account_types";
private Map<String, AuthenticatorDescription> mTypeToAuthDescription
= new HashMap<String, AuthenticatorDescription>();
protected AuthenticatorDescription[] mAuthDescs;
private final Handler mHandler = new Handler();
private Object mStatusChangeListenerHandle;
private HashMap<String, ArrayList<String>> mAccountTypeToAuthorities = null;
/**
* Overload to handle account updates.
*/
public void onAccountsUpdated(Account[] accounts) {
}
/**
* Overload to handle authenticator description updates
*/
protected void onAuthDescriptionsUpdated() {
}
/**
* Overload to handle sync state updates.
*/
protected void onSyncStateUpdated() {
}
@Override
public void onResume() {
super.onResume();
mStatusChangeListenerHandle = ContentResolver.addStatusChangeListener(
ContentResolver.SYNC_OBSERVER_TYPE_ACTIVE
| ContentResolver.SYNC_OBSERVER_TYPE_STATUS
| ContentResolver.SYNC_OBSERVER_TYPE_SETTINGS,
mSyncStatusObserver);
onSyncStateUpdated();
}
@Override
public void onPause() {
super.onPause();
ContentResolver.removeStatusChangeListener(mStatusChangeListenerHandle);
}
private SyncStatusObserver mSyncStatusObserver = new SyncStatusObserver() {
public void onStatusChanged(int which) {
mHandler.post(new Runnable() {
public void run() {
onSyncStateUpdated();
}
});
}
};
public ArrayList<String> getAuthoritiesForAccountType(String type) {
if (mAccountTypeToAuthorities == null) {
mAccountTypeToAuthorities = Maps.newHashMap();
SyncAdapterType[] syncAdapters = ContentResolver.getSyncAdapterTypes();
for (int i = 0, n = syncAdapters.length; i < n; i++) {
final SyncAdapterType sa = syncAdapters[i];
ArrayList<String> authorities = mAccountTypeToAuthorities.get(sa.accountType);
if (authorities == null) {
authorities = new ArrayList<String>();
mAccountTypeToAuthorities.put(sa.accountType, authorities);
}
if (Log.isLoggable(TAG, Log.VERBOSE)) {
Log.d(TAG, "added authority " + sa.authority + " to accountType "
+ sa.accountType);
}
authorities.add(sa.authority);
}
}
return mAccountTypeToAuthorities.get(type);
}
/**
* Gets an icon associated with a particular account type. If none found, return null.
* @param accountType the type of account
* @return a drawable for the icon or null if one cannot be found.
*/
protected Drawable getDrawableForType(final String accountType) {
Drawable icon = null;
if (mTypeToAuthDescription.containsKey(accountType)) {
try {
AuthenticatorDescription desc = mTypeToAuthDescription.get(accountType);
Context authContext = getActivity().createPackageContext(desc.packageName, 0);
icon = authContext.getResources().getDrawable(desc.iconId);
} catch (PackageManager.NameNotFoundException e) {
// TODO: place holder icon for missing account icons?
Log.w(TAG, "No icon name for account type " + accountType);
} catch (Resources.NotFoundException e) {
// TODO: place holder icon for missing account icons?
Log.w(TAG, "No icon resource for account type " + accountType);
}
}
return icon;
}
/**
* Gets the label associated with a particular account type. If none found, return null.
* @param accountType the type of account
* @return a CharSequence for the label or null if one cannot be found.
*/
protected CharSequence getLabelForType(final String accountType) {
CharSequence label = null;
if (mTypeToAuthDescription.containsKey(accountType)) {
try {
AuthenticatorDescription desc = mTypeToAuthDescription.get(accountType);
Context authContext = getActivity().createPackageContext(desc.packageName, 0);
label = authContext.getResources().getText(desc.labelId);
} catch (PackageManager.NameNotFoundException e) {
Log.w(TAG, "No label name for account type " + accountType);
} catch (Resources.NotFoundException e) {
Log.w(TAG, "No label icon for account type " + accountType);
}
}
return label;
}
/**
* Gets the preferences.xml file associated with a particular account type.
* @param accountType the type of account
* @return a PreferenceScreen inflated from accountPreferenceId.
*/
protected PreferenceScreen addPreferencesForType(final String accountType) {
PreferenceScreen prefs = null;
if (mTypeToAuthDescription.containsKey(accountType)) {
AuthenticatorDescription desc = null;
try {
desc = mTypeToAuthDescription.get(accountType);
if (desc != null && desc.accountPreferencesId != 0) {
Context authContext = getActivity().createPackageContext(desc.packageName, 0);
prefs = getPreferenceManager().inflateFromResource(authContext,
desc.accountPreferencesId, getPreferenceScreen());
}
} catch (PackageManager.NameNotFoundException e) {
Log.w(TAG, "Couldn't load preferences.xml file from " + desc.packageName);
} catch (Resources.NotFoundException e) {
Log.w(TAG, "Couldn't load preferences.xml file from " + desc.packageName);
}
}
return prefs;
}
/**
* Updates provider icons. Subclasses should call this in onCreate()
* and update any UI that depends on AuthenticatorDescriptions in onAuthDescriptionsUpdated().
*/
protected void updateAuthDescriptions() {
mAuthDescs = AccountManager.get(getActivity()).getAuthenticatorTypes();
for (int i = 0; i < mAuthDescs.length; i++) {
mTypeToAuthDescription.put(mAuthDescs[i].type, mAuthDescs[i]);
}
onAuthDescriptionsUpdated();
}
}