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      1 /**
      2  * Copyright (c) 2012, Google Inc.
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *     http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package com.android.mail.compose;
     17 
     18 import android.content.Context;
     19 import android.text.TextUtils;
     20 import android.util.AttributeSet;
     21 import android.view.View;
     22 import android.widget.AdapterView;
     23 import android.widget.AdapterView.OnItemSelectedListener;
     24 import android.widget.Spinner;
     25 
     26 import com.android.mail.providers.Account;
     27 import com.android.mail.providers.Message;
     28 import com.android.mail.providers.ReplyFromAccount;
     29 import com.android.mail.utils.AccountUtils;
     30 import com.google.common.annotations.VisibleForTesting;
     31 import com.google.common.collect.ImmutableList;
     32 import com.google.common.collect.Lists;
     33 
     34 import java.util.List;
     35 
     36 public class FromAddressSpinner extends Spinner implements OnItemSelectedListener {
     37     private List<Account> mAccounts;
     38     private ReplyFromAccount mAccount;
     39     private final List<ReplyFromAccount> mReplyFromAccounts = Lists.newArrayList();
     40     private OnAccountChangedListener mAccountChangedListener;
     41 
     42     public FromAddressSpinner(Context context) {
     43         this(context, null);
     44     }
     45 
     46     public FromAddressSpinner(Context context, AttributeSet set) {
     47         super(context, set);
     48     }
     49 
     50     public void setCurrentAccount(ReplyFromAccount account) {
     51         mAccount = account;
     52         selectCurrentAccount();
     53     }
     54 
     55     private void selectCurrentAccount() {
     56         if (mAccount == null) {
     57             return;
     58         }
     59         int currentIndex = 0;
     60         for (ReplyFromAccount acct : mReplyFromAccounts) {
     61             if (TextUtils.equals(mAccount.name, acct.name)
     62                     && TextUtils.equals(mAccount.address, acct.address)) {
     63                 setSelection(currentIndex, true);
     64                 break;
     65             }
     66             currentIndex++;
     67         }
     68     }
     69 
     70     public ReplyFromAccount getMatchingReplyFromAccount(String accountString) {
     71         if (!TextUtils.isEmpty(accountString)) {
     72             for (ReplyFromAccount acct : mReplyFromAccounts) {
     73                 if (accountString.equals(acct.address)) {
     74                     return acct;
     75                 }
     76             }
     77         }
     78         return null;
     79     }
     80 
     81     public ReplyFromAccount getCurrentAccount() {
     82         return mAccount;
     83     }
     84 
     85     /**
     86      * @param action Action being performed; if this is COMPOSE, show all
     87      *            accounts. Otherwise, show just the account this was launched
     88      *            with.
     89      * @param currentAccount Account used to launch activity.
     90      * @param syncingAccounts
     91      */
     92     public void initialize(int action, Account currentAccount, Account[] syncingAccounts,
     93                 Message refMessage) {
     94         final List<Account> accounts = AccountUtils.mergeAccountLists(mAccounts,
     95                 syncingAccounts, true /* prioritizeAccountList */);
     96         if (action == ComposeActivity.COMPOSE) {
     97             mAccounts = accounts;
     98         } else {
     99             // First assume that we are going to use the current account as the reply account
    100             Account replyAccount = currentAccount;
    101 
    102             if (refMessage != null && refMessage.accountUri != null) {
    103                 // This is a reply or forward of a message access through the "combined" account.
    104                 // We want to make sure that the real account is in the spinner
    105                 for (Account account : accounts) {
    106                     if (account.uri.equals(refMessage.accountUri)) {
    107                         replyAccount = account;
    108                         break;
    109                     }
    110                 }
    111             }
    112             mAccounts = ImmutableList.of(replyAccount);
    113         }
    114         initFromSpinner();
    115     }
    116 
    117     @VisibleForTesting
    118     protected void initFromSpinner() {
    119         // If there are not yet any accounts in the cached synced accounts
    120         // because this is the first time mail was opened, and it was opened
    121         // directly to the compose activity, don't bother populating the reply
    122         // from spinner yet.
    123         if (mAccounts == null || mAccounts.size() == 0) {
    124             return;
    125         }
    126         FromAddressSpinnerAdapter adapter =
    127                 new FromAddressSpinnerAdapter(getContext());
    128 
    129         mReplyFromAccounts.clear();
    130         for (Account account : mAccounts) {
    131             mReplyFromAccounts.addAll(account.getReplyFroms());
    132         }
    133         adapter.addAccounts(mReplyFromAccounts);
    134 
    135         setAdapter(adapter);
    136         selectCurrentAccount();
    137         setOnItemSelectedListener(this);
    138     }
    139 
    140     public List<ReplyFromAccount> getReplyFromAccounts() {
    141         return mReplyFromAccounts;
    142     }
    143 
    144     public void setOnAccountChangedListener(OnAccountChangedListener listener) {
    145         mAccountChangedListener = listener;
    146     }
    147 
    148     @Override
    149     public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
    150         ReplyFromAccount selection = (ReplyFromAccount) getItemAtPosition(position);
    151         if (!selection.address.equals(mAccount.address)) {
    152             mAccount = selection;
    153             mAccountChangedListener.onAccountChanged();
    154         }
    155     }
    156 
    157     @Override
    158     public void onNothingSelected(AdapterView<?> parent) {
    159         // Do nothing.
    160     }
    161 
    162     /**
    163      * Classes that want to know when a different account in the
    164      * FromAddressSpinner has been selected should implement this interface.
    165      * Note: if the user chooses the same account as the one that has already
    166      * been selected, this method will not be called.
    167      */
    168     public static interface OnAccountChangedListener {
    169         public void onAccountChanged();
    170     }
    171 }
    172