package com.fsck.k9; import java.util.ArrayList; import java.util.Collection; import java.util.HashMap; import java.util.LinkedList; import java.util.List; import java.util.Map; import android.content.Context; import android.content.SharedPreferences; import android.util.Config; import android.util.Log; import com.fsck.k9.preferences.Editor; import com.fsck.k9.preferences.Storage; public class Preferences { /** * Immutable empty {@link Account} array */ private static final Account[] EMPTY_ACCOUNT_ARRAY = new Account[0]; private static Preferences preferences; public static synchronized Preferences getPreferences(Context context) { if (preferences == null) { preferences = new Preferences(context); } return preferences; } private Storage mStorage; private Map accounts = null; private List accountsInOrder = null; private Account newAccount; private Context mContext; private Preferences(Context context) { mStorage = Storage.getStorage(context); mContext = context; if (mStorage.size() == 0) { Log.i(K9.LOG_TAG, "Preferences storage is zero-size, importing from Android-style preferences"); Editor editor = mStorage.edit(); editor.copy(context.getSharedPreferences("AndroidMail.Main", Context.MODE_PRIVATE)); editor.commit(); } } private synchronized void loadAccounts() { accounts = new HashMap(); refreshAccounts(); } public synchronized void refreshAccounts() { Map newAccountMap = new HashMap(); accountsInOrder = new LinkedList(); String accountUuids = getPreferences().getString("accountUuids", null); if ((accountUuids != null) && (accountUuids.length() != 0)) { String[] uuids = accountUuids.split(","); for (String uuid : uuids) { Account account = accounts.get(uuid); if (account != null) { newAccountMap.put(uuid, account); accountsInOrder.add(account); } else { Account newAccount = new Account(this, uuid); newAccountMap.put(uuid, newAccount); accountsInOrder.add(newAccount); } } } if ((newAccount != null) && newAccount.getAccountNumber() != -1) { newAccountMap.put(newAccount.getUuid(), newAccount); accountsInOrder.add(newAccount); newAccount = null; } accounts = newAccountMap; } /** * Returns an array of the accounts on the system. If no accounts are * registered the method returns an empty array. * @return all accounts */ public synchronized Account[] getAccounts() { if (accounts == null) { loadAccounts(); } return accountsInOrder.toArray(EMPTY_ACCOUNT_ARRAY); } /** * Returns an array of the accounts on the system. If no accounts are * registered the method returns an empty array. * @return all accounts with {@link Account#isAvailable(Context)} */ public synchronized Collection getAvailableAccounts() { Account[] allAccounts = getAccounts(); Collection retval = new ArrayList(accounts.size()); for (Account account : allAccounts) { if (account.isAvailable(mContext)) { retval.add(account); } } return retval; } public synchronized Account getAccount(String uuid) { if (accounts == null) { loadAccounts(); } Account account = accounts.get(uuid); return account; } public synchronized Account newAccount() { newAccount = new Account(K9.app); accounts.put(newAccount.getUuid(), newAccount); accountsInOrder.add(newAccount); return newAccount; } public synchronized void deleteAccount(Account account) { accounts.remove(account.getUuid()); accountsInOrder.remove(account); account.delete(this); if (newAccount == account) { newAccount = null; } } /** * Returns the Account marked as default. If no account is marked as default * the first account in the list is marked as default and then returned. If * there are no accounts on the system the method returns null. */ public Account getDefaultAccount() { String defaultAccountUuid = getPreferences().getString("defaultAccountUuid", null); Account defaultAccount = getAccount(defaultAccountUuid); if (defaultAccount == null) { Collection accounts = getAvailableAccounts(); if (accounts.size() > 0) { defaultAccount = accounts.iterator().next(); setDefaultAccount(defaultAccount); } } return defaultAccount; } public void setDefaultAccount(Account account) { getPreferences().edit().putString("defaultAccountUuid", account.getUuid()).commit(); } public void dump() { if (Config.LOGV) { for (String key : getPreferences().getAll().keySet()) { Log.v(K9.LOG_TAG, key + " = " + getPreferences().getAll().get(key)); } } } public SharedPreferences getPreferences() { return mStorage; } }