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/*
* Copyright (C) 2014 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.provider;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.CursorWrapper;
import android.net.Uri;
import android.os.Bundle;
import android.text.TextUtils;
import android.text.format.DateUtils;
import android.text.util.Rfc822Token;
import android.text.util.Rfc822Tokenizer;
import com.android.emailcommon.Logging;
import com.android.emailcommon.mail.Address;
import com.android.emailcommon.provider.EmailContent;
import com.android.emailcommon.provider.Mailbox;
import com.android.mail.browse.ConversationCursorOperationListener;
import com.android.mail.providers.ConversationInfo;
import com.android.mail.providers.Folder;
import com.android.mail.providers.FolderList;
import com.android.mail.providers.ParticipantInfo;
import com.android.mail.providers.UIProvider;
import com.android.mail.providers.UIProvider.ConversationColumns;
import com.android.mail.utils.LogUtils;
import com.google.common.collect.Lists;
/**
* Wrapper that handles the visibility feature (i.e. the conversation list is visible, so
* any pending notifications for the corresponding mailbox should be canceled). We also handle
* getExtras() to provide a snapshot of the mailbox's status
*/
public class EmailConversationCursor extends CursorWrapper implements
ConversationCursorOperationListener {
private final long mMailboxId;
private final int mMailboxTypeId;
private final Context mContext;
private final FolderList mFolderList;
private final Bundle mExtras = new Bundle();
/**
* When showing a folder, if it's been at least this long since the last sync,
* force a folder refresh.
*/
private static final long AUTO_REFRESH_INTERVAL_MS = 5 * DateUtils.MINUTE_IN_MILLIS;
public EmailConversationCursor(final Context context, final Cursor cursor,
final Folder folder, final long mailboxId) {
super(cursor);
mMailboxId = mailboxId;
mContext = context;
mFolderList = FolderList.copyOf(Lists.newArrayList(folder));
Mailbox mailbox = Mailbox.restoreMailboxWithId(context, mailboxId);
if (mailbox != null) {
mMailboxTypeId = mailbox.mType;
mExtras.putInt(UIProvider.CursorExtraKeys.EXTRA_ERROR,
mailbox.mUiLastSyncResult);
mExtras.putInt(UIProvider.CursorExtraKeys.EXTRA_TOTAL_COUNT, mailbox.mTotalCount);
if (mailbox.mUiSyncStatus == EmailContent.SYNC_STATUS_BACKGROUND
|| mailbox.mUiSyncStatus == EmailContent.SYNC_STATUS_USER
|| mailbox.mUiSyncStatus == EmailContent.SYNC_STATUS_LIVE) {
mExtras.putInt(UIProvider.CursorExtraKeys.EXTRA_STATUS,
UIProvider.CursorStatus.LOADING);
} else if (mailbox.mUiSyncStatus == EmailContent.SYNC_STATUS_NONE) {
if (mailbox.mSyncInterval == 0
&& (Mailbox.isSyncableType(mailbox.mType)
|| mailbox.mType == Mailbox.TYPE_SEARCH)
&& !TextUtils.isEmpty(mailbox.mServerId) &&
// TODO: There's potentially a race condition here.
// Consider merging this check with the auto-sync code in respond.
System.currentTimeMillis() - mailbox.mSyncTime
> AUTO_REFRESH_INTERVAL_MS) {
// This will be syncing momentarily
mExtras.putInt(UIProvider.CursorExtraKeys.EXTRA_STATUS,
UIProvider.CursorStatus.LOADING);
} else {
mExtras.putInt(UIProvider.CursorExtraKeys.EXTRA_STATUS,
UIProvider.CursorStatus.COMPLETE);
}
} else {
LogUtils.d(Logging.LOG_TAG,
"Unknown mailbox sync status" + mailbox.mUiSyncStatus);
mExtras.putInt(UIProvider.CursorExtraKeys.EXTRA_STATUS,
UIProvider.CursorStatus.COMPLETE);
}
} else {
mMailboxTypeId = -1;
// TODO for virtual mailboxes, we may want to do something besides just fake it
mExtras.putInt(UIProvider.CursorExtraKeys.EXTRA_ERROR,
UIProvider.LastSyncResult.SUCCESS);
mExtras.putInt(UIProvider.CursorExtraKeys.EXTRA_TOTAL_COUNT,
cursor != null ? cursor.getCount() : 0);
mExtras.putInt(UIProvider.CursorExtraKeys.EXTRA_STATUS,
UIProvider.CursorStatus.COMPLETE);
}
}
@Override
public Bundle getExtras() {
return mExtras;
}
@Override
public Bundle respond(Bundle params) {
final String setVisibilityKey =
UIProvider.ConversationCursorCommand.COMMAND_KEY_SET_VISIBILITY;
if (params.containsKey(setVisibilityKey)) {
final boolean visible = params.getBoolean(setVisibilityKey);
if (visible) {
// Mark all messages as seen
markContentsSeen();
if (params.containsKey(
UIProvider.ConversationCursorCommand.COMMAND_KEY_ENTERED_FOLDER)) {
Mailbox mailbox = Mailbox.restoreMailboxWithId(mContext, mMailboxId);
if (mailbox != null) {
// For non-push mailboxes, if it's stale (i.e. last sync was a while
// ago), force a sync.
// TODO: Fix the check for whether we're non-push? Right now it checks
// whether we are participating in account sync rules.
if (mailbox.mSyncInterval == 0) {
final long timeSinceLastSync =
System.currentTimeMillis() - mailbox.mSyncTime;
if (timeSinceLastSync > AUTO_REFRESH_INTERVAL_MS) {
final ContentResolver resolver = mContext.getContentResolver();
final Uri refreshUri = Uri.parse(EmailContent.CONTENT_URI +
"/" + EmailProvider.QUERY_UIREFRESH + "/" + mailbox.mId);
resolver.query(refreshUri, null, null, null, null);
}
}
}
}
}
}
// Return success
final Bundle response = new Bundle(2);
response.putString(setVisibilityKey,
UIProvider.ConversationCursorCommand.COMMAND_RESPONSE_OK);
final String rawFoldersKey =
UIProvider.ConversationCursorCommand.COMMAND_GET_RAW_FOLDERS;
if (params.containsKey(rawFoldersKey)) {
response.putParcelable(rawFoldersKey, mFolderList);
}
final String convInfoKey =
UIProvider.ConversationCursorCommand.COMMAND_GET_CONVERSATION_INFO;
if (params.containsKey(convInfoKey)) {
response.putParcelable(convInfoKey, generateConversationInfo());
}
return response;
}
private ConversationInfo generateConversationInfo() {
final int numMessages = getInt(getColumnIndex(ConversationColumns.NUM_MESSAGES));
final ConversationInfo conversationInfo = new ConversationInfo(numMessages);
conversationInfo.firstSnippet = getString(getColumnIndex(ConversationColumns.SNIPPET));
conversationInfo.lastSnippet = conversationInfo.firstSnippet;
conversationInfo.firstUnreadSnippet = conversationInfo.firstSnippet;
final boolean isRead = getInt(getColumnIndex(ConversationColumns.READ)) != 0;
final String senderString = getString(getColumnIndex(EmailContent.MessageColumns.DISPLAY_NAME));
final String fromString = getString(getColumnIndex(EmailContent.MessageColumns.FROM_LIST));
final String senderEmail;
if (fromString != null) {
final Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(fromString);
if (tokens.length > 0) {
senderEmail = tokens[0].getAddress();
} else {
LogUtils.d(LogUtils.TAG, "Couldn't parse sender email address");
senderEmail = fromString;
}
} else {
senderEmail = null;
}
// we *intentionally* report no participants for Draft emails so that the UI always
// displays the single word "Draft" as per b/13304929
if (mMailboxTypeId == Mailbox.TYPE_DRAFTS) {
// the UI displays "Draft" in the conversation list based on this count
conversationInfo.draftCount = 1;
} else if (mMailboxTypeId == Mailbox.TYPE_SENT ||
mMailboxTypeId == Mailbox.TYPE_OUTBOX) {
// for conversations in outgoing mail mailboxes return a list of recipients
final String recipientsString = getString(getColumnIndex(
EmailContent.MessageColumns.TO_LIST));
final Address[] recipientAddresses = Address.parse(recipientsString);
for (Address recipientAddress : recipientAddresses) {
final String name = recipientAddress.getSimplifiedName();
final String email = recipientAddress.getAddress();
// all recipients are said to have read all messages in the conversation
conversationInfo.addParticipant(new ParticipantInfo(name, email, 0, isRead));
}
} else {
// for conversations in incoming mail mailboxes return the sender
conversationInfo.addParticipant(new ParticipantInfo(senderString, senderEmail, 0,
isRead));
}
return conversationInfo;
}
@Override
public void markContentsSeen() {
final ContentResolver resolver = mContext.getContentResolver();
final ContentValues contentValues = new ContentValues(1);
contentValues.put(EmailContent.MessageColumns.FLAG_SEEN, true);
final Uri uri = EmailContent.Message.CONTENT_URI;
final String where = EmailContent.MessageColumns.MAILBOX_KEY + " = ? AND " +
EmailContent.MessageColumns.FLAG_SEEN + " != ?";
final String[] selectionArgs = {String.valueOf(mMailboxId), "1"};
resolver.update(uri, contentValues, where, selectionArgs);
}
@Override
public void emptyFolder() {
final ContentResolver resolver = mContext.getContentResolver();
final Uri purgeUri = EmailProvider.uiUri("uipurgefolder", mMailboxId);
resolver.delete(purgeUri, null, null);
}
}
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