| /* |
| * Copyright (C) 2013 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.browse; |
| |
| import android.content.Context; |
| import android.database.Cursor; |
| import android.net.Uri; |
| |
| import com.android.emailcommon.internet.MimeMessage; |
| import com.android.emailcommon.mail.MessagingException; |
| import com.android.mail.browse.MessageCursor.ConversationController; |
| import com.android.mail.content.CursorCreator; |
| import com.android.mail.providers.Attachment; |
| import com.android.mail.providers.Conversation; |
| import com.android.mail.providers.Message; |
| import com.android.mail.ui.ConversationUpdater; |
| import com.google.common.base.Objects; |
| |
| /** |
| * A message created as part of a conversation view. Sometimes, like during star/unstar, it's |
| * handy to have the owning {@link com.android.mail.providers.Conversation} for context. |
| * |
| * <p>This class must remain separate from the {@link MessageCursor} from whence it came, |
| * because cursors can be closed by their Loaders at any time. The |
| * {@link ConversationController} intermediate is used to obtain the currently opened cursor. |
| * |
| * <p>(N.B. This is a {@link android.os.Parcelable}, so try not to add non-transient fields here. |
| * Parcelable state belongs either in {@link com.android.mail.providers.Message} or |
| * {@link com.android.mail.ui.ConversationViewState.MessageViewState}. The |
| * assumption is that this class never needs the state of its extra context saved.) |
| */ |
| public final class ConversationMessage extends Message { |
| |
| private transient ConversationController mController; |
| |
| private ConversationMessage(Cursor cursor) { |
| super(cursor); |
| } |
| |
| public ConversationMessage(Context context, MimeMessage mimeMessage, Uri emlFileUri) |
| throws MessagingException { |
| super(context, mimeMessage, emlFileUri); |
| } |
| |
| public void setController(ConversationController controller) { |
| mController = controller; |
| } |
| |
| public Conversation getConversation() { |
| return mController != null ? mController.getConversation() : null; |
| } |
| |
| /** |
| * Returns a hash code based on this message's identity, contents and current state. |
| * This is a separate method from hashCode() to allow for an instance of this class to be |
| * a functional key in a hash-based data structure. |
| * |
| */ |
| public int getStateHashCode() { |
| return Objects.hashCode(uri, read, starred, getAttachmentsStateHashCode()); |
| } |
| |
| private int getAttachmentsStateHashCode() { |
| int hash = 0; |
| for (Attachment a : getAttachments()) { |
| final Uri uri = a.getIdentifierUri(); |
| hash += (uri != null ? uri.hashCode() : 0); |
| } |
| return hash; |
| } |
| |
| public boolean isConversationStarred() { |
| final MessageCursor c = mController.getMessageCursor(); |
| return c != null && c.isConversationStarred(); |
| } |
| |
| public void star(boolean newStarred) { |
| final ConversationUpdater listController = mController.getListController(); |
| if (listController != null) { |
| listController.starMessage(this, newStarred); |
| } |
| } |
| |
| /** |
| * Public object that knows how to construct Messages given Cursors. |
| */ |
| public static final CursorCreator<ConversationMessage> FACTORY = |
| new CursorCreator<ConversationMessage>() { |
| @Override |
| public ConversationMessage createFromCursor(Cursor c) { |
| return new ConversationMessage(c); |
| } |
| |
| @Override |
| public String toString() { |
| return "ConversationMessage CursorCreator"; |
| } |
| }; |
| |
| } |