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Code Issues Releases Wiki Activity

Use database ID to keep track of the current draft

Browse Source 
By using the database ID we avoid having to deal with the problem of
changing UIDs. First the message has a local UID, then, when the upload
to the server is completed, it gets a remote UID.
This commit is contained in:
cketti 2012-01-22 05:14:58 +01:00
parent 96f827d291
commit bddacf6b64
3 changed files with 80 additions and 35 deletions
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58
src/com/fsck/k9/activity/MessageCompose.java
View File

@ -84,6 +84,8 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
private static final int DIALOG_REFUSE_TO_SAVE_DRAFT_MARKED_ENCRYPTED = 2;
private static final int DIALOG_CONTINUE_WITHOUT_PUBLIC_KEY = 3;
private static final long INVALID_DRAFT_ID = MessagingController.INVALID_MESSAGE_ID;
private static final String ACTION_COMPOSE = "com.fsck.k9.intent.action.COMPOSE";
private static final String ACTION_REPLY = "com.fsck.k9.intent.action.REPLY";
private static final String ACTION_REPLY_ALL = "com.fsck.k9.intent.action.REPLY_ALL";
@ -104,8 +106,7 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
"com.fsck.k9.activity.MessageCompose.QuotedTextShown";
private static final String STATE_KEY_SOURCE_MESSAGE_PROCED =
"com.fsck.k9.activity.MessageCompose.stateKeySourceMessageProced";
private static final String STATE_KEY_DRAFT_UID =
"com.fsck.k9.activity.MessageCompose.draftUid";
private static final String STATE_KEY_DRAFT_ID = "com.fsck.k9.activity.MessageCompose.draftId";
private static final String STATE_KEY_HTML_QUOTE = "com.fsck.k9.activity.MessageCompose.HTMLQuote";
private static final String STATE_IDENTITY_CHANGED =
"com.fsck.k9.activity.MessageCompose.identityChanged";
@ -228,10 +229,11 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
private boolean mIgnoreOnStop = false;
/**
* The draft uid of this message. This is used when saving drafts so that the same draft is
* overwritten instead of being created anew. This property is null until the first save.
* The database ID of this message's draft. This is used when saving drafts so the message in
* the database is updated instead of being created anew. This property is INVALID_DRAFT_ID
* until the first save.
*/
private String mDraftUid;
private long mDraftId = INVALID_DRAFT_ID;
private Handler mHandler = new Handler() {
@Override
@ -893,7 +895,7 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
outState.putBoolean(STATE_KEY_BCC_SHOWN, mBccWrapper.getVisibility() == View.VISIBLE);
outState.putSerializable(STATE_KEY_QUOTED_TEXT_MODE, mQuotedTextMode);
outState.putBoolean(STATE_KEY_SOURCE_MESSAGE_PROCED, mSourceMessageProcessed);
outState.putString(STATE_KEY_DRAFT_UID, mDraftUid);
outState.putLong(STATE_KEY_DRAFT_ID, mDraftId);
outState.putSerializable(STATE_IDENTITY, mIdentity);
outState.putBoolean(STATE_IDENTITY_CHANGED, mIdentityChanged);
outState.putSerializable(STATE_PGP_DATA, mPgpData);
@ -930,7 +932,7 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
mQuotedHTML.loadDataWithBaseURL("http://", mQuotedHtmlContent.getQuotedContent(), "text/html", "utf-8", null);
}
}
mDraftUid = savedInstanceState.getString(STATE_KEY_DRAFT_UID);
mDraftId = savedInstanceState.getLong(STATE_KEY_DRAFT_ID);
mIdentity = (Identity)savedInstanceState.getSerializable(STATE_IDENTITY);
mIdentityChanged = savedInstanceState.getBoolean(STATE_IDENTITY_CHANGED);
mPgpData = (PgpData) savedInstanceState.getSerializable(STATE_PGP_DATA);
@ -1609,9 +1611,9 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
}
private void onDiscard() {
if (mDraftUid != null) {
MessagingController.getInstance(getApplication()).deleteDraft(mAccount, mDraftUid);
mDraftUid = null;
if (mDraftId != INVALID_DRAFT_ID) {
MessagingController.getInstance(getApplication()).deleteDraft(mAccount, mDraftId);
mDraftId = INVALID_DRAFT_ID;
}
mHandler.sendEmptyMessage(MSG_DISCARDED_DRAFT);
mDraftNeedsSaving = false;
@ -1817,12 +1819,12 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
}
// test whether there is something to save
if (mDraftNeedsSaving || (mDraftUid != null)) {
final String previousDraftUid = mDraftUid;
if (mDraftNeedsSaving || (mDraftId != INVALID_DRAFT_ID)) {
final long previousDraftId = mDraftId;
final Account previousAccount = mAccount;
// make current message appear as new
mDraftUid = null;
mDraftId = INVALID_DRAFT_ID;
// actual account switch
mAccount = account;
@ -1832,13 +1834,13 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
}
saveMessage();
if (previousDraftUid != null) {
if (previousDraftId != INVALID_DRAFT_ID) {
if (K9.DEBUG) {
Log.v(K9.LOG_TAG, "Account switch, deleting draft from previous account: "
+ previousDraftUid);
+ previousDraftId);
}
MessagingController.getInstance(getApplication()).deleteDraft(previousAccount,
previousDraftUid);
previousDraftId);
}
} else {
mAccount = account;
@ -2264,7 +2266,7 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
} else if (ACTION_EDIT_DRAFT.equals(action)) {
String showQuotedTextMode = "NONE";
mDraftUid = message.getUid();
mDraftId = MessagingController.getInstance(getApplication()).getId(message);
mSubjectView.setText(message.getSubject());
addAddresses(mToView, message.getRecipients(RecipientType.TO));
if (message.getRecipients(RecipientType.CC).length > 0) {
@ -2854,14 +2856,6 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
@Override
public void messageUidChanged(Account account, String folder, String oldUid, String newUid) {
//TODO: is this really necessary here? mDraftUid is update after the call to MessagingController.saveDraft()
// Track UID changes of the draft message
if (account.equals(mAccount) &&
folder.equals(mAccount.getDraftsFolderName()) &&
oldUid.equals(mDraftUid)) {
mDraftUid = newUid;
}
// Track UID changes of the source message
if (mMessageReference != null) {
final Account sourceAccount = Preferences.getPreferences(MessageCompose.this).getAccount(mMessageReference.accountUuid);
@ -2957,9 +2951,9 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
}
MessagingController.getInstance(getApplication()).sendMessage(mAccount, message, null);
if (mDraftUid != null) {
MessagingController.getInstance(getApplication()).deleteDraft(mAccount, mDraftUid);
mDraftUid = null;
if (mDraftId != INVALID_DRAFT_ID) {
MessagingController.getInstance(getApplication()).deleteDraft(mAccount, mDraftId);
mDraftId = INVALID_DRAFT_ID;
}
return null;
@ -2983,9 +2977,7 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
/*
* Save a draft
*/
if (mDraftUid != null) {
message.setUid(mDraftUid);
} else if (ACTION_EDIT_DRAFT.equals(getIntent().getAction())) {
if (ACTION_EDIT_DRAFT.equals(getIntent().getAction())) {
/*
* We're saving a previously saved draft, so update the new message's uid
* to the old message's uid.
@ -2996,8 +2988,8 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
}
final MessagingController messagingController = MessagingController.getInstance(getApplication());
Message draftMessage = messagingController.saveDraft(mAccount, message);
mDraftUid = draftMessage.getUid();
Message draftMessage = messagingController.saveDraft(mAccount, message, mDraftId);
mDraftId = messagingController.getId(draftMessage);
mHandler.sendEmptyMessage(MSG_SAVED_DRAFT);
return null;

24
src/com/fsck/k9/controller/MessagingController.java
View File

@ -79,6 +79,7 @@ import com.fsck.k9.mail.store.LocalStore.PendingCommand;
* removed from the queue once the activity is no longer active.
*/
public class MessagingController implements Runnable {
public static final long INVALID_MESSAGE_ID = -1;
/**
* Immutable empty {@link String} array
@ -3303,12 +3304,13 @@ public class MessagingController implements Runnable {
});
}
public void deleteDraft(final Account account, String uid) {
public void deleteDraft(final Account account, long id) {
LocalFolder localFolder = null;
try {
LocalStore localStore = account.getLocalStore();
localFolder = localStore.getFolder(account.getDraftsFolderName());
localFolder.open(OpenMode.READ_WRITE);
String uid = localFolder.getMessageUidById(id);
Message message = localFolder.getMessage(uid);
if (message != null) {
deleteMessages(new Message[] { message }, null);
@ -4059,12 +4061,18 @@ public class MessagingController implements Runnable {
* @param message Message to save.
* @return Message representing the entry in the local store.
*/
public Message saveDraft(final Account account, final Message message) {
public Message saveDraft(final Account account, final Message message, long existingDraftId) {
Message localMessage = null;
try {
LocalStore localStore = account.getLocalStore();
LocalFolder localFolder = localStore.getFolder(account.getDraftsFolderName());
localFolder.open(OpenMode.READ_WRITE);
if (existingDraftId != INVALID_MESSAGE_ID) {
String uid = localFolder.getMessageUidById(existingDraftId);
message.setUid(uid);
}
// Save the message to the store.
localFolder.appendMessages(new Message[] {
message
@ -4089,6 +4097,18 @@ public class MessagingController implements Runnable {
return localMessage;
}
public long getId(Message message) {
long id;
if (message instanceof LocalMessage) {
id = ((LocalMessage) message).getId();
} else {
Log.w(K9.LOG_TAG, "MessagingController.getId() called without a LocalMessage");
id = INVALID_MESSAGE_ID;
}
return id;
}
public boolean modeMismatch(Account.FolderMode aMode, Folder.FolderClass fMode) {
if (aMode == Account.FolderMode.NONE
|| (aMode == Account.FolderMode.FIRST_CLASS &&

33
src/com/fsck/k9/mail/store/LocalStore.java
View File

@ -1798,6 +1798,39 @@ public class LocalStore extends Store implements Serializable {
});
}
public String getMessageUidById(final long id) throws MessagingException {
try {
return database.execute(false, new DbCallback<String>() {
@Override
public String doDbWork(final SQLiteDatabase db) throws WrappedException, UnavailableStorageException {
try {
open(OpenMode.READ_WRITE);
Cursor cursor = null;
try {
cursor = db.rawQuery(
"SELECT uid FROM messages " +
"WHERE id = ? AND folder_id = ?",
new String[] {
Long.toString(id), Long.toString(mFolderId)
});
if (!cursor.moveToNext()) {
return null;
}
return cursor.getString(0);
} finally {
Utility.closeQuietly(cursor);
}
} catch (MessagingException e) {
throw new WrappedException(e);
}
}
});
} catch (WrappedException e) {
throw(MessagingException) e.getCause();
}
}
@Override
public Message getMessage(final String uid) throws MessagingException {
try {