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ara-mdk / platform / packages / apps / Email / 7ef671d99ba6c183a8567d9fb14d4eca98cd1d61 / . / src / com / android / email / activity / MessageCompose.java
blob: 0ac7301daf9433bad0a829001625873b6f210825 [file] [log] [blame]
/*
* 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.email.activity;
import android.app.ActionBar;
import android.app.ActionBar.OnNavigationListener;
import android.app.Activity;
import android.app.ActivityManager;
import android.app.FragmentTransaction;
import android.content.ActivityNotFoundException;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Parcelable;
import android.provider.OpenableColumns;
import android.text.InputFilter;
import android.text.SpannableStringBuilder;
import android.text.Spanned;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.text.util.Rfc822Tokenizer;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnFocusChangeListener;
import android.view.ViewGroup;
import android.webkit.WebView;
import android.widget.ArrayAdapter;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.MultiAutoCompleteTextView;
import android.widget.TextView;
import android.widget.Toast;
import com.android.common.contacts.DataUsageStatUpdater;
import com.android.email.Controller;
import com.android.email.Email;
import com.android.email.EmailAddressAdapter;
import com.android.email.EmailAddressValidator;
import com.android.email.R;
import com.android.email.RecipientAdapter;
import com.android.email.activity.setup.AccountSettings;
import com.android.email.mail.internet.EmailHtmlUtil;
import com.android.emailcommon.Logging;
import com.android.emailcommon.internet.MimeUtility;
import com.android.emailcommon.mail.Address;
import com.android.emailcommon.provider.Account;
import com.android.emailcommon.provider.EmailContent;
import com.android.emailcommon.provider.EmailContent.Attachment;
import com.android.emailcommon.provider.EmailContent.Body;
import com.android.emailcommon.provider.EmailContent.BodyColumns;
import com.android.emailcommon.provider.EmailContent.Message;
import com.android.emailcommon.provider.EmailContent.MessageColumns;
import com.android.emailcommon.provider.EmailContent.QuickResponseColumns;
import com.android.emailcommon.provider.Mailbox;
import com.android.emailcommon.provider.QuickResponse;
import com.android.emailcommon.utility.AttachmentUtilities;
import com.android.emailcommon.utility.EmailAsyncTask;
import com.android.emailcommon.utility.Utility;
import com.android.ex.chips.AccountSpecifier;
import com.android.ex.chips.ChipsUtil;
import com.android.ex.chips.RecipientEditTextView;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Objects;
import com.google.common.collect.Lists;
import java.io.File;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutionException;
/**
* Activity to compose a message.
*
* TODO Revive shortcuts command for removed menu options.
* C: add cc/bcc
* N: add attachment
*/
public class MessageCompose extends Activity implements OnClickListener, OnFocusChangeListener,
DeleteMessageConfirmationDialog.Callback, InsertQuickResponseDialog.Callback {
private static final String ACTION_REPLY = "com.android.email.intent.action.REPLY";
private static final String ACTION_REPLY_ALL = "com.android.email.intent.action.REPLY_ALL";
private static final String ACTION_FORWARD = "com.android.email.intent.action.FORWARD";
private static final String ACTION_EDIT_DRAFT = "com.android.email.intent.action.EDIT_DRAFT";
private static final String EXTRA_ACCOUNT_ID = "account_id";
private static final String EXTRA_MESSAGE_ID = "message_id";
/** If the intent is sent from the email app itself, it should have this boolean extra. */
public static final String EXTRA_FROM_WITHIN_APP = "from_within_app";
/** If the intent is sent from thw widget. */
public static final String EXTRA_FROM_WIDGET = "from_widget";
private static final String STATE_KEY_CC_SHOWN =
"com.android.email.activity.MessageCompose.ccShown";
private static final String STATE_KEY_QUOTED_TEXT_SHOWN =
"com.android.email.activity.MessageCompose.quotedTextShown";
private static final String STATE_KEY_DRAFT_ID =
"com.android.email.activity.MessageCompose.draftId";
private static final String STATE_KEY_LAST_SAVE_TASK_ID =
"com.android.email.activity.MessageCompose.requestId";
private static final String STATE_KEY_ACTION =
"com.android.email.activity.MessageCompose.action";
private static final int ACTIVITY_REQUEST_PICK_ATTACHMENT = 1;
private static final String[] ATTACHMENT_META_SIZE_PROJECTION = {
OpenableColumns.SIZE
};
private static final int ATTACHMENT_META_SIZE_COLUMN_SIZE = 0;
/**
* A registry of the active tasks used to save messages.
*/
private static final ConcurrentHashMap<Long, SendOrSaveMessageTask> sActiveSaveTasks =
new ConcurrentHashMap<Long, SendOrSaveMessageTask>();
private static long sNextSaveTaskId = 1;
/**
* The ID of the latest save or send task requested by this Activity.
*/
private long mLastSaveTaskId = -1;
private Account mAccount;
/**
* The contents of the current message being edited. This is not always in sync with what's
* on the UI. {@link #updateMessage(Message, Account, boolean, boolean)} must be called to sync
* the UI values into this object.
*/
private Message mDraft = new Message();
/**
* A collection of attachments the user is currently wanting to attach to this message.
*/
private final ArrayList<Attachment> mAttachments = new ArrayList<Attachment>();
/**
* The source message for a reply, reply all, or forward. This is asynchronously loaded.
*/
private Message mSource;
/**
* The attachments associated with the source attachments. Usually included in a forward.
*/
private ArrayList<Attachment> mSourceAttachments = new ArrayList<Attachment>();
/**
* The action being handled by this activity. This is initially populated from the
* {@link Intent}, but can switch between reply/reply all/forward where appropriate.
* This value is nullable (a null value indicating a regular "compose").
*/
private String mAction;
private TextView mFromView;
private MultiAutoCompleteTextView mToView;
private MultiAutoCompleteTextView mCcView;
private MultiAutoCompleteTextView mBccView;
private View mCcBccContainer;
private EditText mSubjectView;
private EditText mMessageContentView;
private View mAttachmentContainer;
private ViewGroup mAttachmentContentView;
private View mQuotedTextArea;
private CheckBox mIncludeQuotedTextCheckBox;
private WebView mQuotedText;
private ActionSpinnerAdapter mActionSpinnerAdapter;
private Controller mController;
private boolean mDraftNeedsSaving;
private boolean mMessageLoaded;
private boolean mInitiallyEmpty;
private boolean mPickingAttachment = false;
private Boolean mQuickResponsesAvailable = true;
private final EmailAsyncTask.Tracker mTaskTracker = new EmailAsyncTask.Tracker();
private AccountSpecifier mAddressAdapterTo;
private AccountSpecifier mAddressAdapterCc;
private AccountSpecifier mAddressAdapterBcc;
/**
* Watches the to, cc, bcc, subject, and message body fields.
*/
private final TextWatcher mWatcher = new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start,
int before, int after) { }
@Override
public void onTextChanged(CharSequence s, int start,
int before, int count) {
setMessageChanged(true);
}
@Override
public void afterTextChanged(android.text.Editable s) { }
};
private static Intent getBaseIntent(Context context) {
return new Intent(context, MessageCompose.class);
}
/**
* Create an {@link Intent} that can start the message compose activity. If accountId -1,
* the default account will be used; otherwise, the specified account is used.
*/
public static Intent getMessageComposeIntent(Context context, long accountId) {
Intent i = getBaseIntent(context);
i.putExtra(EXTRA_ACCOUNT_ID, accountId);
return i;
}
/**
* Creates an {@link Intent} that can start the message compose activity from the main Email
* activity. This should not be used for Intents to be fired from outside of the main Email
* activity, such as from widgets, as the behavior of the compose screen differs subtly from
* those cases.
*/
private static Intent getMainAppIntent(Context context, long accountId) {
Intent result = getMessageComposeIntent(context, accountId);
result.putExtra(EXTRA_FROM_WITHIN_APP, true);
return result;
}
/**
* Compose a new message using the given account. If account is {@link Account#NO_ACCOUNT}
* the default account will be used.
* This should only be called from the main Email application.
* @param context
* @param accountId
*/
public static void actionCompose(Context context, long accountId) {
try {
Intent i = getMainAppIntent(context, accountId);
context.startActivity(i);
} catch (ActivityNotFoundException anfe) {
// Swallow it - this is usually a race condition, especially under automated test.
// (The message composer might have been disabled)
Email.log(anfe.toString());
}
}
/**
* Compose a new message using a uri (mailto:) and a given account. If account is -1 the
* default account will be used.
* This should only be called from the main Email application.
* @param context
* @param uriString
* @param accountId
* @return true if startActivity() succeeded
*/
public static boolean actionCompose(Context context, String uriString, long accountId) {
try {
Intent i = getMainAppIntent(context, accountId);
i.setAction(Intent.ACTION_SEND);
i.setData(Uri.parse(uriString));
context.startActivity(i);
return true;
} catch (ActivityNotFoundException anfe) {
// Swallow it - this is usually a race condition, especially under automated test.
// (The message composer might have been disabled)
Email.log(anfe.toString());
return false;
}
}
/**
* Compose a new message as a reply to the given message. If replyAll is true the function
* is reply all instead of simply reply.
* @param context
* @param messageId
* @param replyAll
*/
public static void actionReply(Context context, long messageId, boolean replyAll) {
startActivityWithMessage(context, replyAll ? ACTION_REPLY_ALL : ACTION_REPLY, messageId);
}
/**
* Compose a new message as a forward of the given message.
* @param context
* @param messageId
*/
public static void actionForward(Context context, long messageId) {
startActivityWithMessage(context, ACTION_FORWARD, messageId);
}
/**
* Continue composition of the given message. This action modifies the way this Activity
* handles certain actions.
* Save will attempt to replace the message in the given folder with the updated version.
* Discard will delete the message from the given folder.
* @param context
* @param messageId the message id.
*/
public static void actionEditDraft(Context context, long messageId) {
startActivityWithMessage(context, ACTION_EDIT_DRAFT, messageId);
}
/**
* Starts a compose activity with a message as a reference message (e.g. for reply or forward).
*/
private static void startActivityWithMessage(Context context, String action, long messageId) {
Intent i = getBaseIntent(context);
i.putExtra(EXTRA_MESSAGE_ID, messageId);
i.setAction(action);
context.startActivity(i);
}
private void setAccount(Intent intent) {
long accountId = intent.getLongExtra(EXTRA_ACCOUNT_ID, -1);
Account account = null;
if (accountId != Account.NO_ACCOUNT) {
// User supplied an account; make sure it exists
account = Account.restoreAccountWithId(this, accountId);
// Deleted account is no account...
if (account == null) {
accountId = Account.NO_ACCOUNT;
}
}
// If we still have no account, try the default
if (accountId == Account.NO_ACCOUNT) {
accountId = Account.getDefaultAccountId(this);
if (accountId != Account.NO_ACCOUNT) {
// Make sure it exists...
account = Account.restoreAccountWithId(this, accountId);
// Deleted account is no account...
if (account == null) {
accountId = Account.NO_ACCOUNT;
}
}
}
// If we can't find an account, set one up
if (accountId == Account.NO_ACCOUNT || account == null) {
// There are no accounts set up. This should not have happened. Prompt the
// user to set up an account as an acceptable bailout.
Welcome.actionStart(this);
finish();
} else {
setAccount(account);
}
}
private void setAccount(Account account) {
if (account == null) {
throw new IllegalArgumentException();
}
mAccount = account;
mFromView.setText(account.mEmailAddress);
mAddressAdapterTo
.setAccount(new android.accounts.Account(account.mEmailAddress, "unknown"));
mAddressAdapterCc
.setAccount(new android.accounts.Account(account.mEmailAddress, "unknown"));
mAddressAdapterBcc
.setAccount(new android.accounts.Account(account.mEmailAddress, "unknown"));
new QuickResponseChecker(mTaskTracker).executeParallel((Void) null);
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ActivityHelper.debugSetWindowFlags(this);
setContentView(R.layout.message_compose);
mController = Controller.getInstance(getApplication());
initViews();
// Show the back arrow on the action bar.
getActionBar().setDisplayOptions(
ActionBar.DISPLAY_HOME_AS_UP, ActionBar.DISPLAY_HOME_AS_UP);
if (savedInstanceState != null) {
long draftId = savedInstanceState.getLong(STATE_KEY_DRAFT_ID, Message.NOT_SAVED);
long existingSaveTaskId = savedInstanceState.getLong(STATE_KEY_LAST_SAVE_TASK_ID, -1);
setAction(savedInstanceState.getString(STATE_KEY_ACTION));
SendOrSaveMessageTask existingSaveTask = sActiveSaveTasks.get(existingSaveTaskId);
if ((draftId != Message.NOT_SAVED) || (existingSaveTask != null)) {
// Restoring state and there was an existing message saved or in the process of
// being saved.
resumeDraft(draftId, existingSaveTask, false /* don't restore views */);
} else {
// Restoring state but there was nothing saved - probably means the user rotated
// the device immediately - just use the Intent.
resolveIntent(getIntent());
}
} else {
Intent intent = getIntent();
setAction(intent.getAction());
resolveIntent(intent);
}
}
private void resolveIntent(Intent intent) {
if (Intent.ACTION_VIEW.equals(mAction)
|| Intent.ACTION_SENDTO.equals(mAction)
|| Intent.ACTION_SEND.equals(mAction)
|| Intent.ACTION_SEND_MULTIPLE.equals(mAction)) {
initFromIntent(intent);
setMessageChanged(true);
setMessageLoaded(true);
} else if (ACTION_REPLY.equals(mAction)
|| ACTION_REPLY_ALL.equals(mAction)
|| ACTION_FORWARD.equals(mAction)) {
long sourceMessageId = getIntent().getLongExtra(EXTRA_MESSAGE_ID, Message.NOT_SAVED);
loadSourceMessage(sourceMessageId, true);
} else if (ACTION_EDIT_DRAFT.equals(mAction)) {
// Assert getIntent.hasExtra(EXTRA_MESSAGE_ID)
long draftId = getIntent().getLongExtra(EXTRA_MESSAGE_ID, Message.NOT_SAVED);
resumeDraft(draftId, null, true /* restore views */);
} else {
// Normal compose flow for a new message.
setAccount(intent);
setInitialComposeText(null, getAccountSignature(mAccount));
setMessageLoaded(true);
}
}
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
// Temporarily disable onTextChanged listeners while restoring the fields
removeListeners();
super.onRestoreInstanceState(savedInstanceState);
if (savedInstanceState.getBoolean(STATE_KEY_CC_SHOWN)) {
showCcBccFields();
}
mQuotedTextArea.setVisibility(savedInstanceState.getBoolean(STATE_KEY_QUOTED_TEXT_SHOWN)
? View.VISIBLE : View.GONE);
mQuotedText.setVisibility(savedInstanceState.getBoolean(STATE_KEY_QUOTED_TEXT_SHOWN)
? View.VISIBLE : View.GONE);
addListeners();
}
// needed for unit tests
@Override
public void setIntent(Intent intent) {
super.setIntent(intent);
setAction(intent.getAction());
}
private void setQuickResponsesAvailable(boolean quickResponsesAvailable) {
if (mQuickResponsesAvailable != quickResponsesAvailable) {
mQuickResponsesAvailable = quickResponsesAvailable;
invalidateOptionsMenu();
}
}
/**
* Given an accountId and context, finds if the database has any QuickResponse
* entries and returns the result to the Callback.
*/
private class QuickResponseChecker extends EmailAsyncTask<Void, Void, Boolean> {
public QuickResponseChecker(EmailAsyncTask.Tracker tracker) {
super(tracker);
}
@Override
protected Boolean doInBackground(Void... params) {
return EmailContent.count(MessageCompose.this, QuickResponse.CONTENT_URI,
QuickResponseColumns.ACCOUNT_KEY + "=?",
new String[] {Long.toString(mAccount.mId)}) > 0;
}
@Override
protected void onSuccess(Boolean quickResponsesAvailable) {
setQuickResponsesAvailable(quickResponsesAvailable);
}
}
@Override
public void onResume() {
super.onResume();
// Exit immediately if the accounts list has changed (e.g. externally deleted)
if (Email.getNotifyUiAccountsChanged()) {
Welcome.actionStart(this);
finish();
return;
}
// If activity paused and quick responses are removed/added, possibly update options menu
if (mAccount != null) {
new QuickResponseChecker(mTaskTracker).executeParallel((Void) null);
}
}
@Override
public void onPause() {
super.onPause();
saveIfNeeded();
}
/**
* We override onDestroy to make sure that the WebView gets explicitly destroyed.
* Otherwise it can leak native references.
*/
@Override
public void onDestroy() {
super.onDestroy();
mQuotedText.destroy();
mQuotedText = null;
mTaskTracker.cancellAllInterrupt();
if (mAddressAdapterTo != null && mAddressAdapterTo instanceof EmailAddressAdapter) {
((EmailAddressAdapter) mAddressAdapterTo).close();
}
if (mAddressAdapterCc != null && mAddressAdapterCc instanceof EmailAddressAdapter) {
((EmailAddressAdapter) mAddressAdapterCc).close();
}
if (mAddressAdapterBcc != null && mAddressAdapterBcc instanceof EmailAddressAdapter) {
((EmailAddressAdapter) mAddressAdapterBcc).close();
}
}
/**
* The framework handles most of the fields, but we need to handle stuff that we
* dynamically show and hide:
* Cc field,
* Bcc field,
* Quoted text,
*/
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
long draftId = mDraft.mId;
if (draftId != Message.NOT_SAVED) {
outState.putLong(STATE_KEY_DRAFT_ID, draftId);
}
outState.putBoolean(STATE_KEY_CC_SHOWN, mCcBccContainer.getVisibility() == View.VISIBLE);
outState.putBoolean(STATE_KEY_QUOTED_TEXT_SHOWN,
mQuotedTextArea.getVisibility() == View.VISIBLE);
outState.putString(STATE_KEY_ACTION, mAction);
// If there are any outstanding save requests, ensure that it's noted in case it hasn't
// finished by the time the activity is restored.
outState.putLong(STATE_KEY_LAST_SAVE_TASK_ID, mLastSaveTaskId);
}
@Override
public void onBackPressed() {
onBack(true /* systemKey */);
}
/**
* Whether or not the current message being edited has a source message (i.e. is a reply,
* or forward) that is loaded.
*/
private boolean hasSourceMessage() {
return mSource != null;
}
/**
* @return true if the activity was opened by the email app itself.
*/
private boolean isOpenedFromWithinApp() {
Intent i = getIntent();
return (i != null && i.getBooleanExtra(EXTRA_FROM_WITHIN_APP, false));
}
private boolean isOpenedFromWidget() {
Intent i = getIntent();
return (i != null && i.getBooleanExtra(EXTRA_FROM_WIDGET, false));
}
/**
* Sets message as loaded and then initializes the TextWatchers.
* @param isLoaded - value to which to set mMessageLoaded
*/
private void setMessageLoaded(boolean isLoaded) {
if (mMessageLoaded != isLoaded) {
mMessageLoaded = isLoaded;
addListeners();
mInitiallyEmpty = areViewsEmpty();
}
}
private void setMessageChanged(boolean messageChanged) {
boolean needsSaving = messageChanged && !(mInitiallyEmpty && areViewsEmpty());
if (mDraftNeedsSaving != needsSaving) {
mDraftNeedsSaving = needsSaving;
invalidateOptionsMenu();
}
}
/**
* @return whether or not all text fields are empty (i.e. the entire compose message is empty)
*/
private boolean areViewsEmpty() {
return (mToView.length() == 0)
&& (mCcView.length() == 0)
&& (mBccView.length() == 0)
&& (mSubjectView.length() == 0)
&& isBodyEmpty()
&& mAttachments.isEmpty();
}
private boolean isBodyEmpty() {
return (mMessageContentView.length() == 0)
|| mMessageContentView.getText()
.toString().equals("\n" + getAccountSignature(mAccount));
}
public void setFocusShifter(int fromViewId, final int targetViewId) {
View label = findViewById(fromViewId); // xlarge only
if (label != null) {
final View target = UiUtilities.getView(this, targetViewId);
label.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
target.requestFocus();
}
});
}
}
/**
* An {@link InputFilter} that implements special address cleanup rules.
* The first space key entry following an "@" symbol that is followed by any combination
* of letters and symbols, including one+ dots and zero commas, should insert an extra
* comma (followed by the space).
*/
@VisibleForTesting
static final InputFilter RECIPIENT_FILTER = new InputFilter() {
@Override
public CharSequence filter(CharSequence source, int start, int end, Spanned dest,
int dstart, int dend) {
// Quick check - did they enter a single space?
if (end-start != 1 || source.charAt(start) != ' ') {
return null;
}
// determine if the characters before the new space fit the pattern
// follow backwards and see if we find a comma, dot, or @
int scanBack = dstart;
boolean dotFound = false;
while (scanBack > 0) {
char c = dest.charAt(--scanBack);
switch (c) {
case '.':
dotFound = true; // one or more dots are req'd
break;
case ',':
return null;
case '@':
if (!dotFound) {
return null;
}
// we have found a comma-insert case. now just do it
// in the least expensive way we can.
if (source instanceof Spanned) {
SpannableStringBuilder sb = new SpannableStringBuilder(",");
sb.append(source);
return sb;
} else {
return ", ";
}
default:
// just keep going
}
}
// no termination cases were found, so don't edit the input
return null;
}
};
private void initViews() {
ViewGroup toParent = UiUtilities.getViewOrNull(this, R.id.to_content);
if (toParent != null) {
mToView = (MultiAutoCompleteTextView) toParent.findViewById(R.id.to);
ViewGroup ccParent, bccParent;
ccParent = (ViewGroup) findViewById(R.id.cc_content);
mCcView = (MultiAutoCompleteTextView) ccParent.findViewById(R.id.cc);
bccParent = (ViewGroup) findViewById(R.id.bcc_content);
mBccView = (MultiAutoCompleteTextView) bccParent.findViewById(R.id.bcc);
} else {
mToView = UiUtilities.getView(this, R.id.to);
mCcView = UiUtilities.getView(this, R.id.cc);
mBccView = UiUtilities.getView(this, R.id.bcc);
}
mFromView = UiUtilities.getView(this, R.id.from);
mCcBccContainer = UiUtilities.getView(this, R.id.cc_bcc_wrapper);
mSubjectView = UiUtilities.getView(this, R.id.subject);
mMessageContentView = UiUtilities.getView(this, R.id.body_text);
mAttachmentContentView = UiUtilities.getView(this, R.id.attachments);
mAttachmentContainer = UiUtilities.getView(this, R.id.attachment_container);
mQuotedTextArea = UiUtilities.getView(this, R.id.quoted_text_area);
mIncludeQuotedTextCheckBox = UiUtilities.getView(this, R.id.include_quoted_text);
mQuotedText = UiUtilities.getView(this, R.id.quoted_text);
InputFilter[] recipientFilters = new InputFilter[] { RECIPIENT_FILTER };
// NOTE: assumes no other filters are set
mToView.setFilters(recipientFilters);
mCcView.setFilters(recipientFilters);
mBccView.setFilters(recipientFilters);
/*
* We set this to invisible by default. Other methods will turn it back on if it's
* needed.
*/
mQuotedTextArea.setVisibility(View.GONE);
setIncludeQuotedText(false, false);
mIncludeQuotedTextCheckBox.setOnClickListener(this);
EmailAddressValidator addressValidator = new EmailAddressValidator();
setupAddressAdapters();
mToView.setTokenizer(new Rfc822Tokenizer());
mToView.setValidator(addressValidator);
mCcView.setTokenizer(new Rfc822Tokenizer());
mCcView.setValidator(addressValidator);
mBccView.setTokenizer(new Rfc822Tokenizer());
mBccView.setValidator(addressValidator);
final View addCcBccView = UiUtilities.getViewOrNull(this, R.id.add_cc_bcc);
if (addCcBccView != null) {
// Tablet view.
addCcBccView.setOnClickListener(this);
}
final View addAttachmentView = UiUtilities.getViewOrNull(this, R.id.add_attachment);
if (addAttachmentView != null) {
// Tablet view.
addAttachmentView.setOnClickListener(this);
}
setFocusShifter(R.id.to_label, R.id.to);
setFocusShifter(R.id.cc_label, R.id.cc);
setFocusShifter(R.id.bcc_label, R.id.bcc);
setFocusShifter(R.id.composearea_tap_trap_bottom, R.id.body_text);
mMessageContentView.setOnFocusChangeListener(this);
updateAttachmentContainer();
mToView.requestFocus();
}
/**
* Initializes listeners. Should only be called once initializing of views is complete to
* avoid unnecessary draft saving.
*/
private void addListeners() {
mToView.addTextChangedListener(mWatcher);
mCcView.addTextChangedListener(mWatcher);
mBccView.addTextChangedListener(mWatcher);
mSubjectView.addTextChangedListener(mWatcher);
mMessageContentView.addTextChangedListener(mWatcher);
}
/**
* Removes listeners from the user-editable fields. Can be used to temporarily disable them
* while resetting fields (such as when changing from reply to reply all) to avoid
* unnecessary saving.
*/
private void removeListeners() {
mToView.removeTextChangedListener(mWatcher);
mCcView.removeTextChangedListener(mWatcher);
mBccView.removeTextChangedListener(mWatcher);
mSubjectView.removeTextChangedListener(mWatcher);
mMessageContentView.removeTextChangedListener(mWatcher);
}
/**
* Set up address auto-completion adapters.
*/
private void setupAddressAdapters() {
boolean supportsChips = ChipsUtil.supportsChipsUi();
if (supportsChips && mToView instanceof RecipientEditTextView) {
mAddressAdapterTo = new RecipientAdapter(this, (RecipientEditTextView) mToView);
mToView.setAdapter((RecipientAdapter) mAddressAdapterTo);
} else {
mAddressAdapterTo = new EmailAddressAdapter(this);
mToView.setAdapter((EmailAddressAdapter) mAddressAdapterTo);
}
if (supportsChips && mCcView instanceof RecipientEditTextView) {
mAddressAdapterCc = new RecipientAdapter(this, (RecipientEditTextView) mCcView);
mCcView.setAdapter((RecipientAdapter) mAddressAdapterCc);
} else {
mAddressAdapterCc = new EmailAddressAdapter(this);
mCcView.setAdapter((EmailAddressAdapter) mAddressAdapterCc);
}
if (supportsChips && mBccView instanceof RecipientEditTextView) {
mAddressAdapterBcc = new RecipientAdapter(this, (RecipientEditTextView) mBccView);
mBccView.setAdapter((RecipientAdapter) mAddressAdapterBcc);
} else {
mAddressAdapterBcc = new EmailAddressAdapter(this);
mBccView.setAdapter((EmailAddressAdapter) mAddressAdapterBcc);
}
}
/**
* Asynchronously loads a draft message for editing.
* This may or may not restore the view contents, depending on whether or not callers want,
* since in the case of screen rotation, those are restored automatically.
*/
private void resumeDraft(
long draftId,
SendOrSaveMessageTask existingSaveTask,
final boolean restoreViews) {
// Note - this can be Message.NOT_SAVED if there is an existing save task in progress
// for the draft we need to load.
mDraft.mId = draftId;
new LoadMessageTask(draftId, existingSaveTask, new OnMessageLoadHandler() {
@Override
public void onMessageLoaded(Message message, Body body) {
message.mHtml = body.mHtmlContent;
message.mText = body.mTextContent;
message.mHtmlReply = body.mHtmlReply;
message.mTextReply = body.mTextReply;
message.mIntroText = body.mIntroText;
message.mSourceKey = body.mSourceKey;
mDraft = message;
processDraftMessage(message, restoreViews);
// Load attachments related to the draft.
loadAttachments(message.mId, mAccount, new AttachmentLoadedCallback() {
@Override
public void onAttachmentLoaded(Attachment[] attachments) {
for (Attachment attachment: attachments) {
addAttachment(attachment);
}
}
});
// If we're resuming an edit of a reply, reply-all, or forward, re-load the
// source message if available so that we get more information.
if (message.mSourceKey != Message.NOT_SAVED) {
loadSourceMessage(message.mSourceKey, false /* restore views */);
}
}
@Override
public void onLoadFailed() {
Utility.showToast(MessageCompose.this, R.string.error_loading_message_body);
finish();
}
}).executeSerial((Void[]) null);
}
@VisibleForTesting
void processDraftMessage(Message message, boolean restoreViews) {
if (restoreViews) {
mSubjectView.setText(message.mSubject);
addAddresses(mToView, Address.unpack(message.mTo));
Address[] cc = Address.unpack(message.mCc);
if (cc.length > 0) {
addAddresses(mCcView, cc);
}
Address[] bcc = Address.unpack(message.mBcc);
if (bcc.length > 0) {
addAddresses(mBccView, bcc);
}
mMessageContentView.setText(message.mText);
showCcBccFieldsIfFilled();
setNewMessageFocus();
}
setMessageChanged(false);
// The quoted text must always be restored.
displayQuotedText(message.mTextReply, message.mHtmlReply);
setIncludeQuotedText(
(mDraft.mFlags & Message.FLAG_NOT_INCLUDE_QUOTED_TEXT) == 0, false);
}
/**
* Asynchronously loads a source message (to be replied or forwarded in this current view),
* populating text fields and quoted text fields when the load finishes, if requested.
*/
private void loadSourceMessage(long sourceMessageId, final boolean restoreViews) {
new LoadMessageTask(sourceMessageId, null, new OnMessageLoadHandler() {
@Override
public void onMessageLoaded(Message message, Body body) {
message.mHtml = body.mHtmlContent;
message.mText = body.mTextContent;
message.mHtmlReply = null;
message.mTextReply = null;
message.mIntroText = null;
mSource = message;
mSourceAttachments = new ArrayList<Attachment>();
if (restoreViews) {
processSourceMessage(mSource, mAccount);
setInitialComposeText(null, getAccountSignature(mAccount));
}
loadAttachments(message.mId, mAccount, new AttachmentLoadedCallback() {
@Override
public void onAttachmentLoaded(Attachment[] attachments) {
final boolean supportsSmartForward =
(mAccount.mFlags & Account.FLAGS_SUPPORTS_SMART_FORWARD) != 0;
// Process the attachments to have the appropriate smart forward flags.
for (Attachment attachment : attachments) {
if (supportsSmartForward) {
attachment.mFlags |= Attachment.FLAG_SMART_FORWARD;
}
mSourceAttachments.add(attachment);
}
if (isForward() && restoreViews) {
if (processSourceMessageAttachments(
mAttachments, mSourceAttachments, true)) {
updateAttachmentUi();
setMessageChanged(true);
}
}
}
});
if (mAction.equals(ACTION_EDIT_DRAFT)) {
// Resuming a draft may in fact be resuming a reply/reply all/forward.
// Use a best guess and infer the action here.
String inferredAction = inferAction();
if (inferredAction != null) {
setAction(inferredAction);
// No need to update the action selector as switching actions should do it.
return;
}
}
updateActionSelector();
}
@Override
public void onLoadFailed() {
// The loading of the source message is only really required if it is needed
// immediately to restore the view contents. In the case of resuming draft, it
// is only needed to gather additional information.
if (restoreViews) {
Utility.showToast(MessageCompose.this, R.string.error_loading_message_body);
finish();
}
}
}).executeSerial((Void[]) null);
}
/**
* Infers whether or not the current state of the message best reflects either a reply,
* reply-all, or forward.
*/
@VisibleForTesting
String inferAction() {
String subject = mSubjectView.getText().toString();
if (subject == null) {
return null;
}
if (subject.toLowerCase().startsWith("fwd:")) {
return ACTION_FORWARD;
} else if (subject.toLowerCase().startsWith("re:")) {
int numRecipients = getAddresses(mToView).length
+ getAddresses(mCcView).length
+ getAddresses(mBccView).length;
if (numRecipients > 1) {
return ACTION_REPLY_ALL;
} else {
return ACTION_REPLY;
}
} else {
// Unsure.
return null;
}
}
private interface OnMessageLoadHandler {
/**
* Handles a load to a message (e.g. a draft message or a source message).
*/
void onMessageLoaded(Message message, Body body);
/**
* Handles a failure to load a message.
*/
void onLoadFailed();
}
/**
* Asynchronously loads a message and the account information.
* This can be used to load a reference message (when replying) or when restoring a draft.
*/
private class LoadMessageTask extends EmailAsyncTask<Void, Void, Object[]> {
/**
* The message ID to load, if available.
*/
private long mMessageId;
/**
* A future-like reference to the save task which must complete prior to this load.
*/
private final SendOrSaveMessageTask mSaveTask;
/**
* A callback to pass the results of the load to.
*/
private final OnMessageLoadHandler mCallback;
public LoadMessageTask(
long messageId, SendOrSaveMessageTask saveTask, OnMessageLoadHandler callback) {
super(mTaskTracker);
mMessageId = messageId;
mSaveTask = saveTask;
mCallback = callback;
}
private long getIdToLoad() throws InterruptedException, ExecutionException {
if (mMessageId == -1) {
mMessageId = mSaveTask.get();
}
return mMessageId;
}
@Override
protected Object[] doInBackground(Void... params) {
long messageId;
try {
messageId = getIdToLoad();
} catch (InterruptedException e) {
// Don't have a good message ID to load - bail.
Log.e(Logging.LOG_TAG,
"Unable to load draft message since existing save task failed: " + e);
return null;
} catch (ExecutionException e) {
// Don't have a good message ID to load - bail.
Log.e(Logging.LOG_TAG,
"Unable to load draft message since existing save task failed: " + e);
return null;
}
Message message = Message.restoreMessageWithId(MessageCompose.this, messageId);
if (message == null) {
return null;
}
long accountId = message.mAccountKey;
Account account = Account.restoreAccountWithId(MessageCompose.this, accountId);
Body body;
try {
body = Body.restoreBodyWithMessageId(MessageCompose.this, message.mId);
} catch (RuntimeException e) {
Log.d(Logging.LOG_TAG, "Exception while loading message body: " + e);
return null;
}
return new Object[] {message, body, account};
}
@Override
protected void onSuccess(Object[] results) {
if ((results == null) || (results.length != 3)) {
mCallback.onLoadFailed();
return;
}
final Message message = (Message) results[0];
final Body body = (Body) results[1];
final Account account = (Account) results[2];
if ((message == null) || (body == null) || (account == null)) {
mCallback.onLoadFailed();
return;
}
setAccount(account);
mCallback.onMessageLoaded(message, body);
setMessageLoaded(true);
}
}
private interface AttachmentLoadedCallback {
/**
* Handles completion of the loading of a set of attachments.
* Callback will always happen on the main thread.
*/
void onAttachmentLoaded(Attachment[] attachment);
}
private void loadAttachments(
final long messageId,
final Account account,
final AttachmentLoadedCallback callback) {
new EmailAsyncTask<Void, Void, Attachment[]>(mTaskTracker) {
@Override
protected Attachment[] doInBackground(Void... params) {
return Attachment.restoreAttachmentsWithMessageId(MessageCompose.this, messageId);
}
@Override
protected void onSuccess(Attachment[] attachments) {
if (attachments == null) {
attachments = new Attachment[0];
}
callback.onAttachmentLoaded(attachments);
}
}.executeSerial((Void[]) null);
}
@Override
public void onFocusChange(View view, boolean focused) {
if (focused) {
switch (view.getId()) {
case R.id.body_text:
// When focusing on the message content via tabbing to it, or other means of
// auto focusing, move the cursor to the end of the body (before the signature).
if (mMessageContentView.getSelectionStart() == 0
&& mMessageContentView.getSelectionEnd() == 0) {
// There is no way to determine if the focus change was programmatic or due
// to keyboard event, or if it was due to a tap/restore. Use a best-guess
// by using the fact that auto-focus/keyboard tabs set the selection to 0.
setMessageContentSelection(getAccountSignature(mAccount));
}
}
}
}
private static void addAddresses(MultiAutoCompleteTextView view, Address[] addresses) {
if (addresses == null) {
return;
}
for (Address address : addresses) {
addAddress(view, address.toString());
}
}
private static void addAddresses(MultiAutoCompleteTextView view, String[] addresses) {
if (addresses == null) {
return;
}
for (String oneAddress : addresses) {
addAddress(view, oneAddress);
}
}
private static void addAddresses(MultiAutoCompleteTextView view, String addresses) {
if (addresses == null) {
return;
}
Address[] unpackedAddresses = Address.unpack(addresses);
for (Address address : unpackedAddresses) {
addAddress(view, address.toString());
}
}
private static void addAddress(MultiAutoCompleteTextView view, String address) {
view.append(address + ", ");
}
private static String getPackedAddresses(TextView view) {
Address[] addresses = Address.parse(view.getText().toString().trim());
return Address.pack(addresses);
}
private static Address[] getAddresses(TextView view) {
Address[] addresses = Address.parse(view.getText().toString().trim());
return addresses;
}
/*
* Computes a short string indicating the destination of the message based on To, Cc, Bcc.
* If only one address appears, returns the friendly form of that address.
* Otherwise returns the friendly form of the first address appended with "and N others".
*/
private String makeDisplayName(String packedTo, String packedCc, String packedBcc) {
Address first = null;
int nRecipients = 0;
for (String packed: new String[] {packedTo, packedCc, packedBcc}) {
Address[] addresses = Address.unpack(packed);
nRecipients += addresses.length;
if (first == null && addresses.length > 0) {
first = addresses[0];
}
}
if (nRecipients == 0) {
return "";
}
String friendly = first.toFriendly();
if (nRecipients == 1) {
return friendly;
}
return this.getString(R.string.message_compose_display_name, friendly, nRecipients - 1);
}
private ContentValues getUpdateContentValues(Message message) {
ContentValues values = new ContentValues();
values.put(MessageColumns.TIMESTAMP, message.mTimeStamp);
values.put(MessageColumns.FROM_LIST, message.mFrom);
values.put(MessageColumns.TO_LIST, message.mTo);
values.put(MessageColumns.CC_LIST, message.mCc);
values.put(MessageColumns.BCC_LIST, message.mBcc);
values.put(MessageColumns.SUBJECT, message.mSubject);
values.put(MessageColumns.DISPLAY_NAME, message.mDisplayName);
values.put(MessageColumns.FLAG_READ, message.mFlagRead);
values.put(MessageColumns.FLAG_LOADED, message.mFlagLoaded);
values.put(MessageColumns.FLAG_ATTACHMENT, message.mFlagAttachment);
values.put(MessageColumns.FLAGS, message.mFlags);
return values;
}
/**
* Updates the given message using values from the compose UI.
*
* @param message The message to be updated.
* @param account the account (used to obtain From: address).
* @param hasAttachments true if it has one or more attachment.
* @param sending set true if the message is about to sent, in which case we perform final
* clean up;
*/
private void updateMessage(Message message, Account account, boolean hasAttachments,
boolean sending) {
if (message.mMessageId == null || message.mMessageId.length() == 0) {
message.mMessageId = Utility.generateMessageId();
}
message.mTimeStamp = System.currentTimeMillis();
message.mFrom = new Address(account.getEmailAddress(), account.getSenderName()).pack();
message.mTo = getPackedAddresses(mToView);
message.mCc = getPackedAddresses(mCcView);
message.mBcc = getPackedAddresses(mBccView);
message.mSubject = mSubjectView.getText().toString();
message.mText = mMessageContentView.getText().toString();
message.mAccountKey = account.mId;
message.mDisplayName = makeDisplayName(message.mTo, message.mCc, message.mBcc);
message.mFlagRead = true;
message.mFlagLoaded = Message.FLAG_LOADED_COMPLETE;
message.mFlagAttachment = hasAttachments;
// Use the Intent to set flags saying this message is a reply or a forward and save the
// unique id of the source message
if (mSource != null && mQuotedTextArea.getVisibility() == View.VISIBLE) {
message.mSourceKey = mSource.mId;
// If the quote bar is visible; this must either be a reply or forward
// Get the body of the source message here
message.mHtmlReply = mSource.mHtml;
message.mTextReply = mSource.mText;
String fromAsString = Address.unpackToString(mSource.mFrom);
if (isForward()) {
message.mFlags |= Message.FLAG_TYPE_FORWARD;
String subject = mSource.mSubject;
String to = Address.unpackToString(mSource.mTo);
String cc = Address.unpackToString(mSource.mCc);
message.mIntroText =
getString(R.string.message_compose_fwd_header_fmt, subject, fromAsString,
to != null ? to : "", cc != null ? cc : "");
} else {
message.mFlags |= Message.FLAG_TYPE_REPLY;
message.mIntroText =
getString(R.string.message_compose_reply_header_fmt, fromAsString);
}
}
if (includeQuotedText()) {
message.mFlags &= ~Message.FLAG_NOT_INCLUDE_QUOTED_TEXT;
} else {
message.mFlags |= Message.FLAG_NOT_INCLUDE_QUOTED_TEXT;
if (sending) {
// If we are about to send a message, and not including the original message,
// clear the related field.
// We can't do this until the last minutes, so that the user can change their
// mind later and want to include it again.
mDraft.mIntroText = null;
mDraft.mTextReply = null;
mDraft.mHtmlReply = null;
// Note that mSourceKey is not cleared out as this is still considered a
// reply/forward.
}
}
}
private class SendOrSaveMessageTask extends EmailAsyncTask<Void, Void, Long> {
private final boolean mSend;
private final long mTaskId;
/** A context that will survive even past activity destruction. */
private final Context mContext;
public SendOrSaveMessageTask(long taskId, boolean send) {
super(null /* DO NOT cancel in onDestroy */);
if (send && ActivityManager.isUserAMonkey()) {
Log.d(Logging.LOG_TAG, "Inhibiting send while monkey is in charge.");
send = false;
}
mTaskId = taskId;
mSend = send;
mContext = getApplicationContext();
sActiveSaveTasks.put(mTaskId, this);
}
@Override
protected Long doInBackground(Void... params) {
synchronized (mDraft) {
updateMessage(mDraft, mAccount, mAttachments.size() > 0, mSend);
ContentResolver resolver = getContentResolver();
if (mDraft.isSaved()) {
// Update the message
Uri draftUri =
ContentUris.withAppendedId(Message.SYNCED_CONTENT_URI, mDraft.mId);
resolver.update(draftUri, getUpdateContentValues(mDraft), null, null);
// Update the body
ContentValues values = new ContentValues();
values.put(BodyColumns.TEXT_CONTENT, mDraft.mText);
values.put(BodyColumns.TEXT_REPLY, mDraft.mTextReply);
values.put(BodyColumns.HTML_REPLY, mDraft.mHtmlReply);
values.put(BodyColumns.INTRO_TEXT, mDraft.mIntroText);
values.put(BodyColumns.SOURCE_MESSAGE_KEY, mDraft.mSourceKey);
Body.updateBodyWithMessageId(MessageCompose.this, mDraft.mId, values);
} else {
// mDraft.mId is set upon return of saveToMailbox()
mController.saveToMailbox(mDraft, Mailbox.TYPE_DRAFTS);
}
// For any unloaded attachment, set the flag saying we need it loaded
boolean hasUnloadedAttachments = false;
for (Attachment attachment : mAttachments) {
if (attachment.mContentUri == null &&
((attachment.mFlags & Attachment.FLAG_SMART_FORWARD) == 0)) {
attachment.mFlags |= Attachment.FLAG_DOWNLOAD_FORWARD;
hasUnloadedAttachments = true;
if (Email.DEBUG) {
Log.d(Logging.LOG_TAG,
"Requesting download of attachment #" + attachment.mId);
}
}
// Make sure the UI version of the attachment has the now-correct id; we will
// use the id again when coming back from picking new attachments
if (!attachment.isSaved()) {
// this attachment is new so save it to DB.
attachment.mMessageKey = mDraft.mId;
attachment.save(MessageCompose.this);
} else if (attachment.mMessageKey != mDraft.mId) {
// We clone the attachment and save it again; otherwise, it will
// continue to point to the source message. From this point forward,
// the attachments will be independent of the original message in the
// database; however, we still need the message on the server in order
// to retrieve unloaded attachments
attachment.mMessageKey = mDraft.mId;
ContentValues cv = attachment.toContentValues();
cv.put(Attachment.FLAGS, attachment.mFlags);
cv.put(Attachment.MESSAGE_KEY, mDraft.mId);
getContentResolver().insert(Attachment.CONTENT_URI, cv);
}
}
if (mSend) {
// Let the user know if message sending might be delayed by background
// downlading of unloaded attachments
if (hasUnloadedAttachments) {
Utility.showToast(MessageCompose.this,
R.string.message_view_attachment_background_load);
}
mController.sendMessage(mDraft);
ArrayList<CharSequence> addressTexts = new ArrayList<CharSequence>();
addressTexts.add(mToView.getText());
addressTexts.add(mCcView.getText());
addressTexts.add(mBccView.getText());
DataUsageStatUpdater updater = new DataUsageStatUpdater(mContext);
updater.updateWithRfc822Address(addressTexts);
}
return mDraft.mId;
}
}
private boolean shouldShowSaveToast() {
// Don't show the toast when rotating, or when opening an Activity on top of this one.
return !isChangingConfigurations() && !mPickingAttachment;
}
@Override
protected void onSuccess(Long draftId) {
// Note that send or save tasks are always completed, even if the activity
// finishes earlier.
sActiveSaveTasks.remove(mTaskId);
// Don't display the toast if the user is just changing the orientation
if (!mSend && shouldShowSaveToast()) {
Toast.makeText(mContext, R.string.message_saved_toast, Toast.LENGTH_LONG).show();
}
}
}
/**
* Send or save a message:
* - out of the UI thread
* - write to Drafts
* - if send, invoke Controller.sendMessage()
* - when operation is complete, display toast
*/
private void sendOrSaveMessage(boolean send) {
if (!mMessageLoaded) {
Log.w(Logging.LOG_TAG,
"Attempted to save draft message prior to the state being fully loaded");
return;
}
synchronized (sActiveSaveTasks) {
mLastSaveTaskId = sNextSaveTaskId++;
SendOrSaveMessageTask task = new SendOrSaveMessageTask(mLastSaveTaskId, send);
// Ensure the tasks are executed serially so that rapid scheduling doesn't result
// in inconsistent data.
task.executeSerial();
}
}
private void saveIfNeeded() {
if (!mDraftNeedsSaving) {
return;
}
setMessageChanged(false);
sendOrSaveMessage(false);
}
/**
* Checks whether all the email addresses listed in TO, CC, BCC are valid.
*/
@VisibleForTesting
boolean isAddressAllValid() {
boolean supportsChips = ChipsUtil.supportsChipsUi();
for (TextView view : new TextView[]{mToView, mCcView, mBccView}) {
String addresses = view.getText().toString().trim();
if (!Address.isAllValid(addresses)) {
// Don't show an error message if we're using chips as the chips have
// their own error state.
if (!supportsChips || !(view instanceof RecipientEditTextView)) {
view.setError(getString(R.string.message_compose_error_invalid_email));
}
return false;
}
}
return true;
}
private void onSend() {
if (!isAddressAllValid()) {
Toast.makeText(this, getString(R.string.message_compose_error_invalid_email),
Toast.LENGTH_LONG).show();
} else if (getAddresses(mToView).length == 0 &&
getAddresses(mCcView).length == 0 &&
getAddresses(mBccView).length == 0) {
mToView.setError(getString(R.string.message_compose_error_no_recipients));
Toast.makeText(this, getString(R.string.message_compose_error_no_recipients),
Toast.LENGTH_LONG).show();
} else {
sendOrSaveMessage(true);
setMessageChanged(false);
finish();
}
}
private void showQuickResponseDialog() {
if (mAccount == null) {
// Load not finished, bail.
return;
}
InsertQuickResponseDialog.newInstance(null, mAccount)
.show(getFragmentManager(), null);
}
/**
* Inserts the selected QuickResponse into the message body at the current cursor position.
*/
@Override
public void onQuickResponseSelected(CharSequence text) {
int start = mMessageContentView.getSelectionStart();
int end = mMessageContentView.getSelectionEnd();
mMessageContentView.getEditableText().replace(start, end, text);
}
private void onDiscard() {
DeleteMessageConfirmationDialog.newInstance(1, null).show(getFragmentManager(), "dialog");
}
/**
* Called when ok on the "discard draft" dialog is pressed. Actually delete the draft.
*/
@Override
public void onDeleteMessageConfirmationDialogOkPressed() {
if (mDraft.mId > 0) {
// By the way, we can't pass the message ID from onDiscard() to here (using a
// dialog argument or whatever), because you can rotate the screen when the dialog is
// shown, and during rotation we save & restore the draft. If it's the
// first save, we give it an ID at this point for the first time (and last time).
// Which means it's possible for a draft to not have an ID in onDiscard(),
// but here.
mController.deleteMessage(mDraft.mId);
}
Utility.showToast(MessageCompose.this, R.string.message_discarded_toast);
setMessageChanged(false);
finish();
}
/**
* Handles an explicit user-initiated action to save a draft.
*/
private void onSave() {
saveIfNeeded();
}
private void showCcBccFieldsIfFilled() {
if ((mCcView.length() > 0) || (mBccView.length() > 0)) {
showCcBccFields();
}
}
private void showCcBccFields() {
if (mCcBccContainer.getVisibility() != View.VISIBLE) {
mCcBccContainer.setVisibility(View.VISIBLE);
mCcView.requestFocus();
UiUtilities.setVisibilitySafe(this, R.id.add_cc_bcc, View.INVISIBLE);
invalidateOptionsMenu();
}
}
/**
* Kick off a picker for whatever kind of MIME types we'll accept and let Android take over.
*/
private void onAddAttachment() {
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
i.setType(AttachmentUtilities.ACCEPTABLE_ATTACHMENT_SEND_UI_TYPES[0]);
mPickingAttachment = true;
startActivityForResult(
Intent.createChooser(i, getString(R.string.choose_attachment_dialog_title)),
ACTIVITY_REQUEST_PICK_ATTACHMENT);
}
private Attachment loadAttachmentInfo(Uri uri) {
long size = -1;
ContentResolver contentResolver = getContentResolver();
// Load name & size independently, because not all providers support both
final String name = Utility.getContentFileName(this, uri);
Cursor metadataCursor = contentResolver.query(uri, ATTACHMENT_META_SIZE_PROJECTION,
null, null, null);
if (metadataCursor != null) {
try {
if (metadataCursor.moveToFirst()) {
size = metadataCursor.getLong(ATTACHMENT_META_SIZE_COLUMN_SIZE);
}
} finally {
metadataCursor.close();
}
}
// When the size is not provided, we need to determine it locally.
if (size < 0) {
// if the URI is a file: URI, ask file system for its size
if ("file".equalsIgnoreCase(uri.getScheme())) {
String path = uri.getPath();
if (path != null) {
File file = new File(path);
size = file.length(); // Returns 0 for file not found
}
}
if (size <= 0) {
// The size was not measurable; This attachment is not safe to use.
// Quick hack to force a relevant error into the UI
// TODO: A proper announcement of the problem
size = AttachmentUtilities.MAX_ATTACHMENT_UPLOAD_SIZE + 1;
}
}
Attachment attachment = new Attachment();
attachment.mFileName = name;
attachment.mContentUri = uri.toString();
attachment.mSize = size;
attachment.mMimeType = AttachmentUtilities.inferMimeTypeForUri(this, uri);
return attachment;
}
private void addAttachment(Attachment attachment) {
// Before attaching the attachment, make sure it meets any other pre-attach criteria
if (attachment.mSize > AttachmentUtilities.MAX_ATTACHMENT_UPLOAD_SIZE) {
Toast.makeText(this, R.string.message_compose_attachment_size, Toast.LENGTH_LONG)
.show();
return;
}
mAttachments.add(attachment);
updateAttachmentUi();
}
private void updateAttachmentUi() {
mAttachmentContentView.removeAllViews();
for (Attachment attachment : mAttachments) {
// Note: allowDelete is set in two cases:
// 1. First time a message (w/ attachments) is forwarded,
// where action == ACTION_FORWARD
// 2. 1 -> Save -> Reopen
// but FLAG_SMART_FORWARD is already set at 1.
// Even if the account supports smart-forward, attachments added
// manually are still removable.
final boolean allowDelete = (attachment.mFlags & Attachment.FLAG_SMART_FORWARD) == 0;
View view = getLayoutInflater().inflate(R.layout.attachment, mAttachmentContentView,
false);
TextView nameView = UiUtilities.getView(view, R.id.attachment_name);
ImageView delete = UiUtilities.getView(view, R.id.remove_attachment);
TextView sizeView = UiUtilities.getView(view, R.id.attachment_size);
nameView.setText(attachment.mFileName);
if (attachment.mSize > 0) {
sizeView.setText(UiUtilities.formatSize(this, attachment.mSize));
} else {
sizeView.setVisibility(View.GONE);
}
if (allowDelete) {
delete.setOnClickListener(this);
delete.setTag(view);
} else {
delete.setVisibility(View.INVISIBLE);
}
view.setTag(attachment);
mAttachmentContentView.addView(view);
}
updateAttachmentContainer();
}
private void updateAttachmentContainer() {
mAttachmentContainer.setVisibility(mAttachmentContentView.getChildCount() == 0
? View.GONE : View.VISIBLE);
}
private void addAttachmentFromUri(Uri uri) {
addAttachment(loadAttachmentInfo(uri));
}
/**
* Same as {@link #addAttachmentFromUri}, but does the mime-type check against
* {@link AttachmentUtilities#ACCEPTABLE_ATTACHMENT_SEND_INTENT_TYPES}.
*/
private void addAttachmentFromSendIntent(Uri uri) {
final Attachment attachment = loadAttachmentInfo(uri);
final String mimeType = attachment.mMimeType;
if (!TextUtils.isEmpty(mimeType) && MimeUtility.mimeTypeMatches(mimeType,
AttachmentUtilities.ACCEPTABLE_ATTACHMENT_SEND_INTENT_TYPES)) {
addAttachment(attachment);
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
mPickingAttachment = false;
if (data == null) {
return;
}
addAttachmentFromUri(data.getData());
setMessageChanged(true);
}
private boolean includeQuotedText() {
return mIncludeQuotedTextCheckBox.isChecked();
}
@Override
public void onClick(View view) {
if (handleCommand(view.getId())) {
return;
}
switch (view.getId()) {
case R.id.remove_attachment:
onDeleteAttachmentIconClicked(view);
break;
}
}
private void setIncludeQuotedText(boolean include, boolean updateNeedsSaving) {
mIncludeQuotedTextCheckBox.setChecked(include);
mQuotedText.setVisibility(mIncludeQuotedTextCheckBox.isChecked()
? View.VISIBLE : View.GONE);
if (updateNeedsSaving) {
setMessageChanged(true);
}
}
private void onDeleteAttachmentIconClicked(View delButtonView) {
View attachmentView = (View) delButtonView.getTag();
Attachment attachment = (Attachment) attachmentView.getTag();
deleteAttachment(mAttachments, attachment);
updateAttachmentUi();
setMessageChanged(true);
}
/**
* Removes an attachment from the current message.
* If the attachment has previous been saved in the db (i.e. this is a draft message which
* has previously been saved), then the draft is deleted from the db.
*
* This does not update the UI to remove the attachment view.
* @param attachments the list of attachments to delete from. Injected for tests.
* @param attachment the attachment to delete
*/
private void deleteAttachment(List<Attachment> attachments, Attachment attachment) {
attachments.remove(attachment);
if ((attachment.mMessageKey == mDraft.mId) && attachment.isSaved()) {
final long attachmentId = attachment.mId;
EmailAsyncTask.runAsyncParallel(new Runnable() {
@Override
public void run() {
mController.deleteAttachment(attachmentId);
}
});
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (handleCommand(item.getItemId())) {
return true;
}
return super.onOptionsItemSelected(item);
}
private boolean handleCommand(int viewId) {
switch (viewId) {
case android.R.id.home:
onBack(false /* systemKey */);
return true;
case R.id.send:
onSend();
return true;
case R.id.save:
onSave();
return true;
case R.id.show_quick_text_list_dialog:
showQuickResponseDialog();
return true;
case R.id.discard:
onDiscard();
return true;
case R.id.include_quoted_text:
// The checkbox is already toggled at this point.
setIncludeQuotedText(mIncludeQuotedTextCheckBox.isChecked(), true);
return true;
case R.id.add_cc_bcc:
showCcBccFields();
return true;
case R.id.add_attachment:
onAddAttachment();
return true;
case R.id.settings:
AccountSettings.actionSettings(this, mAccount.mId);
return true;
}
return false;
}
/**
* Handle a tap to the system back key, or the "app up" button in the action bar.
* @param systemKey whether or not the system key was pressed
*/
private void onBack(boolean systemKey) {
finish();
if (isOpenedFromWithinApp()) {
// If opened from within the app, we just close it.
return;
}
if ((isOpenedFromWidget() || !systemKey) && (mAccount != null)) {
// Otherwise, need to open the main screen for the appropriate account.
// Note that mAccount should always be set by the time the action bar is set up.
startActivity(Welcome.createOpenAccountInboxIntent(this, mAccount.mId));
}
}
private void setAction(String action) {
if (Objects.equal(action, mAction)) {
return;
}
mAction = action;
onActionChanged();
}
/**
* Handles changing from reply/reply all/forward states. Note: this activity cannot transition
* from a standard compose state to any of the other three states.
*/
private void onActionChanged() {
if (!hasSourceMessage()) {
return;
}
// Temporarily remove listeners so that changing action does not invalidate and save message
removeListeners();
processSourceMessage(mSource, mAccount);
// Note that the attachments might not be loaded yet, but this will safely noop
// if that's the case, and the attachments will be processed when they load.
if (processSourceMessageAttachments(mAttachments, mSourceAttachments, isForward())) {
updateAttachmentUi();
setMessageChanged(true);
}
updateActionSelector();
addListeners();
}
/**
* Updates UI components that allows the user to switch between reply/reply all/forward.
*/
private void updateActionSelector() {
ActionBar actionBar = getActionBar();
// Spinner based mode switching.
if (mActionSpinnerAdapter == null) {
mActionSpinnerAdapter = new ActionSpinnerAdapter(this);
actionBar.setListNavigationCallbacks(mActionSpinnerAdapter, ACTION_SPINNER_LISTENER);
}
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
actionBar.setSelectedNavigationItem(ActionSpinnerAdapter.getActionPosition(mAction));
actionBar.setDisplayShowTitleEnabled(false);
}
private final OnNavigationListener ACTION_SPINNER_LISTENER = new OnNavigationListener() {
@Override
public boolean onNavigationItemSelected(int itemPosition, long itemId) {
setAction(ActionSpinnerAdapter.getAction(itemPosition));
return true;
}
};
private static class ActionSpinnerAdapter extends ArrayAdapter<String> {
public ActionSpinnerAdapter(final Context context) {
super(context,
android.R.layout.simple_spinner_dropdown_item,
android.R.id.text1,
Lists.newArrayList(ACTION_REPLY, ACTION_REPLY_ALL, ACTION_FORWARD));
}
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
View result = super.getDropDownView(position, convertView, parent);
((TextView) result.findViewById(android.R.id.text1)).setText(getDisplayValue(position));
return result;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View result = super.getView(position, convertView, parent);
((TextView) result.findViewById(android.R.id.text1)).setText(getDisplayValue(position));
return result;
}
private String getDisplayValue(int position) {
switch (position) {
case 0:
return getContext().getString(R.string.reply_action);
case 1:
return getContext().getString(R.string.reply_all_action);
case 2:
return getContext().getString(R.string.forward_action);
default:
throw new IllegalArgumentException("Invalid action type for spinner");
}
}
public static String getAction(int position) {
switch (position) {
case 0:
return ACTION_REPLY;
case 1:
return ACTION_REPLY_ALL;
case 2:
return ACTION_FORWARD;
default:
throw new IllegalArgumentException("Invalid action type for spinner");
}
}
public static int getActionPosition(String action) {
if (ACTION_REPLY.equals(action)) {
return 0;
} else if (ACTION_REPLY_ALL.equals(action)) {
return 1;
} else if (ACTION_FORWARD.equals(action)) {
return 2;
}
Log.w(Logging.LOG_TAG, "Invalid action type for spinner");
return -1;
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
getMenuInflater().inflate(R.menu.message_compose_option, menu);
return true;
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
menu.findItem(R.id.save).setEnabled(mDraftNeedsSaving);
MenuItem addCcBcc = menu.findItem(R.id.add_cc_bcc);
if (addCcBcc != null) {
// Only available on phones.
addCcBcc.setVisible(
(mCcBccContainer == null) || (mCcBccContainer.getVisibility() != View.VISIBLE));
}
MenuItem insertQuickResponse = menu.findItem(R.id.show_quick_text_list_dialog);
insertQuickResponse.setVisible(mQuickResponsesAvailable);
insertQuickResponse.setEnabled(mQuickResponsesAvailable);
return true;
}
/**
* Set a message body and a signature when the Activity is launched.
*
* @param text the message body
*/
@VisibleForTesting
void setInitialComposeText(CharSequence text, String signature) {
mMessageContentView.setText("");
int textLength = 0;
if (text != null) {
mMessageContentView.append(text);
textLength = text.length();
}
if (!TextUtils.isEmpty(signature)) {
if (textLength == 0 || text.charAt(textLength - 1) != '\n') {
mMessageContentView.append("\n");
}
mMessageContentView.append(signature);
// Reset cursor to right before the signature.
mMessageContentView.setSelection(textLength);
}
}
/**
* Fill all the widgets with the content found in the Intent Extra, if any.
*
* Note that we don't actually check the intent action (typically VIEW, SENDTO, or SEND).
* There is enough overlap in the definitions that it makes more sense to simply check for
* all available data and use as much of it as possible.
*
* With one exception: EXTRA_STREAM is defined as only valid for ACTION_SEND.
*
* @param intent the launch intent
*/
@VisibleForTesting
void initFromIntent(Intent intent) {
setAccount(intent);
// First, add values stored in top-level extras
String[] extraStrings = intent.getStringArrayExtra(Intent.EXTRA_EMAIL);
if (extraStrings != null) {
addAddresses(mToView, extraStrings);
}
extraStrings = intent.getStringArrayExtra(Intent.EXTRA_CC);
if (extraStrings != null) {
addAddresses(mCcView, extraStrings);
}
extraStrings = intent.getStringArrayExtra(Intent.EXTRA_BCC);
if (extraStrings != null) {
addAddresses(mBccView, extraStrings);
}
String extraString = intent.getStringExtra(Intent.EXTRA_SUBJECT);
if (extraString != null) {
mSubjectView.setText(extraString);
}
// Next, if we were invoked with a URI, try to interpret it
// We'll take two courses here. If it's mailto:, there is a specific set of rules
// that define various optional fields. However, for any other scheme, we'll simply
// take the entire scheme-specific part and interpret it as a possible list of addresses.
final Uri dataUri = intent.getData();
if (dataUri != null) {
if ("mailto".equals(dataUri.getScheme())) {
initializeFromMailTo(dataUri.toString());
} else {
String toText = dataUri.getSchemeSpecificPart();
if (toText != null) {
addAddresses(mToView, toText.split(","));
}
}
}
// Next, fill in the plaintext (note, this will override mailto:?body=)
CharSequence text = intent.getCharSequenceExtra(Intent.EXTRA_TEXT);
setInitialComposeText(text, getAccountSignature(mAccount));
// Next, convert EXTRA_STREAM into an attachment
if (Intent.ACTION_SEND.equals(mAction) && intent.hasExtra(Intent.EXTRA_STREAM)) {
Uri uri = (Uri) intent.getParcelableExtra(Intent.EXTRA_STREAM);
if (uri != null) {
addAttachmentFromSendIntent(uri);
}
}
if (Intent.ACTION_SEND_MULTIPLE.equals(mAction)
&& intent.hasExtra(Intent.EXTRA_STREAM)) {
ArrayList<Parcelable> list = intent.getParcelableArrayListExtra(Intent.EXTRA_STREAM);
if (list != null) {
for (Parcelable parcelable : list) {
Uri uri = (Uri) parcelable;
if (uri != null) {
addAttachmentFromSendIntent(uri);
}
}
}
}
// Finally - expose fields that were filled in but are normally hidden, and set focus
showCcBccFieldsIfFilled();
setNewMessageFocus();
}
/**
* When we are launched with an intent that includes a mailto: URI, we can actually
* gather quite a few of our message fields from it.
*
* @param mailToString the href (which must start with "mailto:").
*/
private void initializeFromMailTo(String mailToString) {
// Chop up everything between mailto: and ? to find recipients
int index = mailToString.indexOf("?");
int length = "mailto".length() + 1;
String to;
try {
// Extract the recipient after mailto:
if (index == -1) {
to = decode(mailToString.substring(length));
} else {
to = decode(mailToString.substring(length, index));
}
addAddresses(mToView, to.split(" ,"));
} catch (UnsupportedEncodingException e) {
Log.e(Logging.LOG_TAG, e.getMessage() + " while decoding '" + mailToString + "'");
}
// Extract the other parameters
// We need to disguise this string as a URI in order to parse it
Uri uri = Uri.parse("foo://" + mailToString);
List<String> cc = uri.getQueryParameters("cc");
addAddresses(mCcView, cc.toArray(new String[cc.size()]));
List<String> otherTo = uri.getQueryParameters("to");
addAddresses(mCcView, otherTo.toArray(new String[otherTo.size()]));
List<String> bcc = uri.getQueryParameters("bcc");
addAddresses(mBccView, bcc.toArray(new String[bcc.size()]));
List<String> subject = uri.getQueryParameters("subject");
if (subject.size() > 0) {
mSubjectView.setText(subject.get(0));
}
List<String> body = uri.getQueryParameters("body");
if (body.size() > 0) {
setInitialComposeText(body.get(0), getAccountSignature(mAccount));
}
}
private String decode(String s) throws UnsupportedEncodingException {
return URLDecoder.decode(s, "UTF-8");
}
/**
* Displays quoted text from the original email
*/
private void displayQuotedText(String textBody, String htmlBody) {
// Only use plain text if there is no HTML body
boolean plainTextFlag = TextUtils.isEmpty(htmlBody);
String text = plainTextFlag ? textBody : htmlBody;
if (text != null) {
text = plainTextFlag ? EmailHtmlUtil.escapeCharacterToDisplay(text) : text;
// TODO: re-enable EmailHtmlUtil.resolveInlineImage() for HTML
// EmailHtmlUtil.resolveInlineImage(getContentResolver(), mAccount,
// text, message, 0);
mQuotedTextArea.setVisibility(View.VISIBLE);
if (mQuotedText != null) {
mQuotedText.loadDataWithBaseURL("email://", text, "text/html", "utf-8", null);
}
}
}
/**
* Given a packed address String, the address of our sending account, a view, and a list of
* addressees already added to other addressing views, adds unique addressees that don't
* match our address to the passed in view
*/
private static boolean safeAddAddresses(String addrs, String ourAddress,
MultiAutoCompleteTextView view, ArrayList<Address> addrList) {
boolean added = false;
for (Address address : Address.unpack(addrs)) {
// Don't send to ourselves or already-included addresses
if (!address.getAddress().equalsIgnoreCase(ourAddress) && !addrList.contains(address)) {
addrList.add(address);
addAddress(view, address.toString());
added = true;
}
}
return added;
}
/**
* Set up the to and cc views properly for the "reply" and "replyAll" cases. What's important
* is that we not 1) send to ourselves, and 2) duplicate addressees.
* @param message the message we're replying to
* @param account the account we're sending from
* @param replyAll whether this is a replyAll (vs a reply)
*/
@VisibleForTesting
void setupAddressViews(Message message, Account account, boolean replyAll) {
// Start clean.
clearAddressViews();
// If Reply-to: addresses are included, use those; otherwise, use the From: address.
Address[] replyToAddresses = Address.unpack(message.mReplyTo);
if (replyToAddresses.length == 0) {
replyToAddresses = Address.unpack(message.mFrom);
}
// Check if ourAddress is one of the replyToAddresses to decide how to populate To: field
String ourAddress = account.mEmailAddress;
boolean containsOurAddress = false;
for (Address address : replyToAddresses) {
if (ourAddress.equalsIgnoreCase(address.getAddress())) {
containsOurAddress = true;
break;
}
}
if (containsOurAddress) {
addAddresses(mToView, message.mTo);
} else {
addAddresses(mToView, replyToAddresses);
}
if (replyAll) {
// Keep a running list of addresses we're sending to
ArrayList<Address> allAddresses = new ArrayList<Address>();
for (Address address: replyToAddresses) {
allAddresses.add(address);
}
if (!containsOurAddress) {
safeAddAddresses(message.mTo, ourAddress, mCcView, allAddresses);
}
safeAddAddresses(message.mCc, ourAddress, mCcView, allAddresses);
}
showCcBccFieldsIfFilled();
}
private void clearAddressViews() {
mToView.setText("");
mCcView.setText("");
mBccView.setText("");
}
/**
* Pull out the parts of the now loaded source message and apply them to the new message
* depending on the type of message being composed.
*/
@VisibleForTesting
void processSourceMessage(Message message, Account account) {
String subject = message.mSubject;
if (subject == null) {
subject = "";
}
if (ACTION_REPLY.equals(mAction) || ACTION_REPLY_ALL.equals(mAction)) {
setupAddressViews(message, account, ACTION_REPLY_ALL.equals(mAction));
if (!subject.toLowerCase().startsWith("re:")) {
mSubjectView.setText("Re: " + subject);
} else {
mSubjectView.setText(subject);
}
displayQuotedText(message.mText, message.mHtml);
setIncludeQuotedText(true, false);
} else if (ACTION_FORWARD.equals(mAction)) {
// If we had previously filled the recipients from a draft, don't erase them here!
if (!ACTION_EDIT_DRAFT.equals(getIntent().getAction())) {
clearAddressViews();
}
mSubjectView.setText(!subject.toLowerCase().startsWith("fwd:")
? "Fwd: " + subject : subject);
displayQuotedText(message.mText, message.mHtml);
setIncludeQuotedText(true, false);
} else {
Log.w(Logging.LOG_TAG, "Unexpected action for a call to processSourceMessage "
+ mAction);
}
showCcBccFieldsIfFilled();
setNewMessageFocus();
}
/**
* Processes the source attachments and ensures they're either included or excluded from
* a list of active attachments. This can be used to add attachments for a forwarded message, or
* to remove them if going from a "Forward" to a "Reply"
* Uniqueness is based on filename.
*
* @param current the list of active attachments on the current message. Injected for tests.
* @param sourceAttachments the list of attachments related with the source message. Injected
* for tests.
* @param include whether or not the sourceMessages should be included or excluded from the
* current list of active attachments
* @return whether or not the current attachments were modified
*/
@VisibleForTesting
boolean processSourceMessageAttachments(
List<Attachment> current, List<Attachment> sourceAttachments, boolean include) {
// Build a map of filename to the active attachments.
HashMap<String, Attachment> currentNames = new HashMap<String, Attachment>();
for (Attachment attachment : current) {
currentNames.put(attachment.mFileName, attachment);
}
boolean dirty = false;
if (include) {
// Needs to make sure it's in the list.
for (Attachment attachment : sourceAttachments) {
if (!currentNames.containsKey(attachment.mFileName)) {
current.add(attachment);
dirty = true;
}
}
} else {
// Need to remove the source attachments.
HashSet<String> sourceNames = new HashSet<String>();
for (Attachment attachment : sourceAttachments) {
if (currentNames.containsKey(attachment.mFileName)) {
deleteAttachment(current, currentNames.get(attachment.mFileName));
dirty = true;
}
}
}
return dirty;
}
/**
* Set a cursor to the end of a body except a signature.
*/
@VisibleForTesting
void setMessageContentSelection(String signature) {
int selection = mMessageContentView.length();
if (!TextUtils.isEmpty(signature)) {
int signatureLength = signature.length();
int estimatedSelection = selection - signatureLength;
if (estimatedSelection >= 0) {
CharSequence text = mMessageContentView.getText();
int i = 0;
while (i < signatureLength
&& text.charAt(estimatedSelection + i) == signature.charAt(i)) {
++i;
}
if (i == signatureLength) {
selection = estimatedSelection;
while (selection > 0 && text.charAt(selection - 1) == '\n') {
--selection;
}
}
}
}
mMessageContentView.setSelection(selection, selection);
}
/**
* In order to accelerate typing, position the cursor in the first empty field,
* or at the end of the body composition field if none are empty. Typically, this will
* play out as follows:
* Reply / Reply All - put cursor in the empty message body
* Forward - put cursor in the empty To field
* Edit Draft - put cursor in whatever field still needs entry
*/
private void setNewMessageFocus() {
if (mToView.length() == 0) {
mToView.requestFocus();
} else if (mSubjectView.length() == 0) {
mSubjectView.requestFocus();
} else {
mMessageContentView.requestFocus();
}
}
private boolean isForward() {
return ACTION_FORWARD.equals(mAction);
}
/**
* @return the signature for the specified account, if non-null. If the account specified is
* null or has no signature, {@code null} is returned.
*/
private static String getAccountSignature(Account account) {
return (account == null) ? null : account.mSignature;
}
}