| /******************************************************************************* |
| * 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(); |
| } |
| } |