1 /* 2 * Copyright (C) 2012 Google Inc. 3 * Licensed to The Android Open Source Project. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package com.android.mail.ui; 19 20 import android.app.AlertDialog; 21 import android.content.ContentValues; 22 import android.net.Uri; 23 24 import com.android.mail.browse.ConfirmDialogFragment; 25 import com.android.mail.browse.ConversationCursor; 26 import com.android.mail.browse.ConversationMessage; 27 import com.android.mail.providers.Conversation; 28 import com.android.mail.providers.ConversationInfo; 29 import com.android.mail.providers.Folder; 30 import com.android.mail.providers.UIProvider; 31 32 import java.util.Collection; 33 import java.util.Set; 34 35 /** 36 * Classes that can update conversations implement this interface. 37 */ 38 public interface ConversationUpdater extends ConversationListCallbacks { 39 /** 40 * Modify the given conversation by changing the column provided here to contain the value 41 * provided. Column names are listed in {@link UIProvider.ConversationColumns}, for example 42 * {@link UIProvider.ConversationColumns#FOLDER_LIST} 43 * @param target 44 * @param columnName 45 * @param value 46 */ 47 void updateConversation(Collection <Conversation> target, String columnName, String value); 48 49 /** 50 * Modify the given conversation by changing the column provided here to contain the value 51 * provided. Column names are listed in {@link UIProvider.ConversationColumns}, for example 52 * {@link UIProvider.ConversationColumns#READ} 53 * @param target 54 * @param columnName 55 * @param value 56 */ 57 void updateConversation(Collection <Conversation> target, String columnName, int value); 58 59 /** 60 * Modify the given conversation by changing the column provided here to contain the value 61 * provided. Column names are listed in {@link UIProvider.ConversationColumns}, for example 62 * {@link UIProvider.ConversationColumns#HAS_ATTACHMENTS} 63 * @param target 64 * @param columnName 65 * @param value 66 */ 67 void updateConversation(Collection <Conversation> target, String columnName, boolean value); 68 69 /** 70 * Modify the given conversation by changing the columns provided here to 71 * contain the values provided. Column names are listed in 72 * {@link UIProvider.ConversationColumns}, for example 73 * {@link UIProvider.ConversationColumns#HAS_ATTACHMENTS} 74 * @param target 75 * @param values 76 */ 77 void updateConversation(Collection <Conversation> target, ContentValues values); 78 79 /** 80 * Requests the removal of the current conversation with the specified destructive action. 81 * @param actionId the unique id for the action responsible for this delete: R.id.archive, ... 82 * @param target the conversations to act upon. 83 * @param action to perform after the UI has been updated to remove the conversations 84 * @param isBatch true if this is a batch action, false otherwise. 85 */ 86 void delete( 87 int actionId, final Collection<Conversation> target, final DestructiveAction action, 88 boolean isBatch); 89 90 /** 91 * Mark a number of conversations as read or unread. 92 * @param targets the conversations to act upon 93 * @param read true if the conversations are marked read, false if they are marked unread. 94 * @param viewed whether the conversations are marked viewed as well. This indicates that the 95 * conversations are shown on the UI. 96 */ 97 void markConversationsRead(Collection<Conversation> targets, boolean read, boolean viewed); 98 99 /** 100 * Mark a single conversation unread, either entirely or for just a subset of the messages in a 101 * conversation and the view <b>returns to Conversation List</b> mode. 102 * 103 * @param conv conversation to mark unread 104 * @param unreadMessageUris URIs for the subset of the conversation's messages to mark unread, 105 * or null/empty set to mark the entire conversation unread. 106 * @param originalConversationInfo the original unread state of the {@link ConversationInfo} 107 * that {@link ConversationCursor} will temporarily use until the commit is complete. 108 */ 109 void markConversationMessagesUnread(Conversation conv, Set<Uri> unreadMessageUris, 110 byte[] originalConversationInfo); 111 112 /** 113 * Star a single message within a conversation. This method requires a 114 * {@link ConversationMessage} to propagate the change to the owning {@link Conversation}. 115 * 116 */ 117 void starMessage(ConversationMessage msg, boolean starred); 118 119 /** 120 * Get a destructive action for selected conversations. The action corresponds to Menu item 121 * identifiers, for example R.id.unread, or R.id.delete. 122 * @param action 123 * @return 124 */ 125 public DestructiveAction getBatchAction(int action); 126 127 /** 128 * Get a destructive action for selected conversations. The action corresponds to Menu item 129 * identifiers, for example R.id.unread, or R.id.delete. 130 * @param action 131 * @return 132 */ 133 public DestructiveAction getDeferredBatchAction(int action); 134 135 /** 136 * Get destructive folder change for selected conversations. 137 * The caller must explicitly call performAction. 138 * @param action 139 * @return 140 */ 141 public DestructiveAction getDeferredRemoveFolder(Collection<Conversation> target, 142 Folder toRemove, boolean isDestructive, boolean isBatch, 143 boolean showUndo); 144 145 /** 146 * Assign the target conversations to the given folders, and remove them from all other folders 147 * that they might be assigned to. 148 * @param folders the folders to assign the conversations to. 149 * @param target the conversations to act upon. 150 * @param batch whether this is a batch operation 151 * @param showUndo whether to show the undo bar 152 * @param isMoveTo <code>true</code> if this is a move operation, <code>false</code> if it is 153 * some other type of folder change operation 154 */ 155 public void assignFolder(Collection<FolderOperation> folders, Collection<Conversation> target, 156 boolean batch, boolean showUndo, boolean isMoveTo); 157 158 /** 159 * Refreshes the conversation list, if one exists. 160 */ 161 void refreshConversationList(); 162 163 /** 164 * Show the next conversation after a destructive action. The next 165 * conversation is determined by list state and user preferences. 166 * @param conversations Conversations that were removed as part of the 167 * destructive action. 168 */ 169 void showNextConversation(Collection<Conversation> conversations); 170 171 /** 172 * Make an action listener for a confirmation dialog, and the currently selected set of 173 * conversations. The action is specified as an integer which marks the menu resource: 174 * R.id.delete, R.id.discard_drafts, etc. 175 * @param action the resource ID of the menu action: R.id.delete, for example 176 * @param fromSelectedSet true if the listener acts on the selected set, false if the listener 177 * acts on the current conversation. 178 */ 179 public void makeDialogListener(final int action, boolean fromSelectedSet); 180 181 /** 182 * If set, get the listener associated with the existing {@link ConfirmDialogFragment}. This 183 * listener needs to be set centrally, because the dialog fragment can get torn down, along with 184 * the current activity, and the listener has to be created afresh. 185 * @return the current listener for the positive action in the current confirmation dialog, if 186 * any. Returns null if no confirmation dialog is currently shown. 187 */ 188 public AlertDialog.OnClickListener getListener(); 189 } 190
