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117 lines
3.4 KiB
Java
117 lines
3.4 KiB
Java
/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the Grendel mail/news client.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are
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* Copyright (C) 1997 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*
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* Created: Will Scullin <scullin@netscape.com>, 3 Sep 1997.
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*/
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package grendel.ui;
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import javax.mail.Folder;
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import javax.mail.Message;
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/**
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* Handles attempts to view messages, folders and their contents,
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* without assuptions about the UI layout.
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* Potential side affects for given actions are detailed.
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* The resulting window state should be order independent <b>if</b>
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* overlapping arguments are the same with the exception
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* of window focus. That is, <pre>
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* displayMaster(folderA);
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* displayFolder(folderA, messageA);
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* </pre>
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* should result in the same windows and selections as <pre>
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* displayFolder(foldarA, messageA);
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* displayMaster(folderA);
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* </pre>
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* but the result of <pre>
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* displayFolder(folderA, messageA);
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* displayMaster(folderB):
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* </pre>
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* is undefined. If multiple windows are opened as the result of
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* multiple calls, focus will be shifted to the last opened
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* window. Focus will always be shifted to the last acted upon
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* view.
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*/
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public abstract class MessageDisplayManager {
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static volatile MessageDisplayManager fManager;
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static {
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System.out.println("MessageDisplayManager.<clinit>");
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}
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/**
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* Sets the default message display manager
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*/
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public static synchronized void SetDefaultManager(MessageDisplayManager
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aManager) {
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fManager = aManager;
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System.out.println("Setting manager: " + aManager);
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}
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/**
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* Gets the default message display manager
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*/
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public static synchronized MessageDisplayManager GetDefaultManager() {
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System.out.println("Getting manager: " + fManager);
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return fManager;
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}
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/**
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* Displays a message given a Message object. This
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* may affect displayed folders.
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*/
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public abstract void displayMessage(Message aMessage);
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/**
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* Displays a folder given a folder object. This may
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* affect displayed messages.
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*/
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public abstract void displayFolder(Folder aFolder);
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/**
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* Displays folder given a Folder object and
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* selects a message in that folder given a Message
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* object. This may or may not also display the message, but
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* it will not open multiple windows.
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*/
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public abstract void displayFolder(Folder aFolder, Message aMessage);
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/**
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* Displays the master (A folder tree, for now). This should not
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* affect displayed folders or messages.
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*/
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public abstract void displayMaster();
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/**
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* Displays the master with the given folder selected. This
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* may affect displayed folders and messages.
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*/
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public abstract void displayMaster(Folder aFolder);
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}
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