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/*******************************************************************************
* Copyright (C) 2012 Google Inc.
* Licensed to 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.mail.ui;
import com.android.mail.providers.Account;
import com.android.mail.providers.Folder;
import com.android.mail.providers.UIProvider;
import com.android.mail.utils.LogTag;
import com.android.mail.utils.LogUtils;
import com.android.mail.ConversationListContext;
import android.net.Uri;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.IntentFilter.MalformedMimeTypeException;
import android.text.TextUtils;
/**
* A simple {@code BroadcastReceiver} which suppresses new e-mail notifications for a given folder.
*/
public class SuppressNotificationReceiver extends BroadcastReceiver {
private static final String LOG_TAG = LogTag.getLogTag();
private Context mContext;
private AbstractActivityController mController;
private String mMimeType;
/**
* Registers this receiver to suppress the new mail notifications for a given folder so
* that other {@code BroadcastReceiver}s don't receive them.
*/
public boolean activate(Context context, AbstractActivityController controller) {
final Account account = controller.getCurrentAccount();
mContext = context;
mController = controller;
final IntentFilter filter = new IntentFilter(UIProvider.ACTION_UPDATE_NOTIFICATION);
// Note: the real notification receiver must have a lower (i.e. negative) priority
// than this receiver.
filter.setPriority(0);
if (account != null) {
mMimeType = account.mimeType;
try {
filter.addDataType(mMimeType);
} catch (MalformedMimeTypeException e) {
LogUtils.wtf(LOG_TAG, "Malformed mimetype: %s", mMimeType);
}
} else {
// If the current account is null, still register the receiver. This allows the
// internal state of the receiver to match what the caller requested.
LogUtils.d(LOG_TAG, "Registering receiver with no mime type");
}
context.registerReceiver(this, filter);
return true;
}
/**
* Returns true if this suppressNotificationReceiver is activated
*/
public boolean activated() {
return mContext != null;
}
/**
* Unregisters this receiver.
*/
public void deactivate() {
try {
if (mContext != null) {
mContext.unregisterReceiver(this);
mContext = null;
mMimeType = null;
}
} catch (IllegalArgumentException e) {
// May throw if already unregistered. Ignore exception.
}
}
/**
* Returns a boolean indicating whether notifications are suppressed for the specified account.
*/
public boolean notificationsDisabledForAccount(Account account) {
return mContext != null && TextUtils.equals(account.mimeType, mMimeType);
}
@Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (!UIProvider.ACTION_UPDATE_NOTIFICATION.equals(action)) {
return;
}
if (!mController.isConversationListVisible()) {
// The conversation list is not visible, don't suppress notifications.
return;
}
final ConversationListContext listContext = mController.getCurrentListContext();
if (listContext == null) {
// A non-null list context was expected
LogUtils.e(LOG_TAG, "unexpected null context");
return;
}
if (ConversationListContext.isSearchResult(listContext)) {
// The user is looking at a search result, don't suppress notifications.
return;
}
final Account listContextAccount = listContext.account;
final Folder listContextFolder = listContext.folder;
// Guard against degenerate state in the controller
if (listContextAccount == null || listContextFolder == null) {
LogUtils.e(LOG_TAG, "SuppressNotificationReceiver.onReceive: account=%s, folder=%s",
listContextAccount, listContextFolder);
return;
}
final Uri intentAccountUri =
(Uri)intent.getParcelableExtra(UIProvider.UpdateNotificationExtras.EXTRA_ACCOUNT);
if (!listContextAccount.uri.equals(intentAccountUri)) {
return;
}
final Uri intentFolderUri =
(Uri)intent.getParcelableExtra(UIProvider.UpdateNotificationExtras.EXTRA_FOLDER);
if (!listContextFolder.folderUri.equals(intentFolderUri)) {
return;
}
final int count = intent.getIntExtra(
UIProvider.UpdateNotificationExtras.EXTRA_UPDATED_UNREAD_COUNT, 0);
// If the count is zero we want to let the intent through so that the
// regular receiver can remove the notification.
// This will allow a server change, that modifies the unread count to 0, to be handled
// by the intended recpient to clear the notification.
if (count == 0) {
return;
}
LogUtils.i(LOG_TAG, "Aborting broadcast of intent %s, folder uri is %s",
intent, intentFolderUri);
abortBroadcast();
}
}
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