113 lines
4.4 KiB
Java
113 lines
4.4 KiB
Java
/*
|
|
* Copyright (C) 2011 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 com.google.common.annotations.VisibleForTesting;
|
|
|
|
import android.content.ContentValues;
|
|
import android.content.Context;
|
|
import android.database.Cursor;
|
|
|
|
import com.android.email.Clock;
|
|
import com.android.emailcommon.provider.EmailContent;
|
|
import com.android.emailcommon.provider.Mailbox;
|
|
import com.android.emailcommon.provider.EmailContent.MailboxColumns;
|
|
import com.android.emailcommon.utility.EmailAsyncTask;
|
|
|
|
import java.util.ArrayList;
|
|
|
|
/**
|
|
* Manages recent data for mailboxes.
|
|
*/
|
|
public class RecentMailboxManager {
|
|
@VisibleForTesting
|
|
static Clock sClock = Clock.INSTANCE;
|
|
|
|
/** The maximum number of results to retrieve */
|
|
private static final int LIMIT_RESULTS = 5;
|
|
/** Query to find the top most recent mailboxes */
|
|
private static final String RECENT_SELECTION =
|
|
MailboxColumns.ID + " IN " +
|
|
"( SELECT " + MailboxColumns.ID
|
|
+ " FROM " + Mailbox.TABLE_NAME
|
|
+ " WHERE ( " + MailboxColumns.ACCOUNT_KEY + "=? "
|
|
+ " AND " + MailboxColumns.LAST_TOUCHED_TIME + ">0 )"
|
|
+ " ORDER BY " + MailboxColumns.LAST_TOUCHED_TIME + " DESC"
|
|
+ " LIMIT ? )";
|
|
/** Similar query to {@link #RECENT_SELECTION}, except, exclude all but user mailboxes */
|
|
private static final String RECENT_SELECTION_WITH_EXCLUSIONS =
|
|
RECENT_SELECTION + " AND " + MailboxColumns.TYPE + "=" + Mailbox.TYPE_MAIL;
|
|
private final Context mContext;
|
|
private static RecentMailboxManager sInstance;
|
|
|
|
public static synchronized RecentMailboxManager getInstance(Context context) {
|
|
if (sInstance == null) {
|
|
sInstance = new RecentMailboxManager(context);
|
|
}
|
|
return sInstance;
|
|
}
|
|
|
|
/** Hide constructor */
|
|
private RecentMailboxManager(Context context) {
|
|
mContext = context;
|
|
}
|
|
|
|
/** Updates the specified mailbox's touch time. Returns an async task for test only. */
|
|
public EmailAsyncTask<Void, Void, Void> touch(long mailboxId) {
|
|
return fireAndForget(mailboxId, sClock.getTime());
|
|
}
|
|
|
|
/**
|
|
* Gets the most recently touched mailboxes for the specified account.
|
|
* <p><em>WARNING</em>: This method blocks on the database.
|
|
* @param accountId The ID of the account to load the recent list.
|
|
* @param withExclusions If {@code false}, all mailboxes are eligible for the recent list.
|
|
* Otherwise, only user defined mailboxes are eligible for the recent list.
|
|
*/
|
|
public ArrayList<Long> getMostRecent(long accountId, boolean withExclusions) {
|
|
String selection = withExclusions ? RECENT_SELECTION_WITH_EXCLUSIONS : RECENT_SELECTION;
|
|
ArrayList<Long> returnList = new ArrayList<Long>();
|
|
Cursor cursor = mContext.getContentResolver().query(Mailbox.CONTENT_URI,
|
|
EmailContent.ID_PROJECTION,
|
|
selection,
|
|
new String[] { Long.toString(accountId), Integer.toString(LIMIT_RESULTS) },
|
|
MailboxColumns.DISPLAY_NAME);
|
|
try {
|
|
while (cursor.moveToNext()) {
|
|
returnList.add(cursor.getLong(EmailContent.ID_PROJECTION_COLUMN));
|
|
}
|
|
} finally {
|
|
cursor.close();
|
|
}
|
|
return returnList;
|
|
}
|
|
|
|
/** Updates the last touched time for the mailbox in the background */
|
|
private EmailAsyncTask<Void, Void, Void> fireAndForget(final long mailboxId, final long time) {
|
|
return EmailAsyncTask.runAsyncParallel(new Runnable() {
|
|
@Override
|
|
public void run() {
|
|
ContentValues values = new ContentValues();
|
|
values.put(MailboxColumns.LAST_TOUCHED_TIME, time);
|
|
mContext.getContentResolver().update(Mailbox.CONTENT_URI, values,
|
|
EmailContent.ID_SELECTION,
|
|
new String[] { Long.toString(mailboxId) });
|
|
}
|
|
});
|
|
}
|
|
}
|