X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;f=src%2Fjexer%2Fbackend%2FMultiBackend.java;fp=src%2Fjexer%2Fbackend%2FMultiBackend.java;h=0000000000000000000000000000000000000000;hb=36b0745bab5665306391440a531e1ee1c0625445;hp=d01b9442c0526cc9ce2a67af0be5e8f1a2a514c7;hpb=686d4da2d2ecc203d5f8b524225a4327777825be;p=fanfix.git diff --git a/src/jexer/backend/MultiBackend.java b/src/jexer/backend/MultiBackend.java deleted file mode 100644 index d01b944..0000000 --- a/src/jexer/backend/MultiBackend.java +++ /dev/null @@ -1,254 +0,0 @@ -/* - * Jexer - Java Text User Interface - * - * The MIT License (MIT) - * - * Copyright (C) 2019 Kevin Lamonte - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - * - * @author Kevin Lamonte [kevin.lamonte@gmail.com] - * @version 1 - */ -package jexer.backend; - -import java.util.ArrayList; -import java.util.List; - -import jexer.event.TCommandEvent; -import jexer.event.TInputEvent; -import static jexer.TCommand.*; - -/** - * MultiBackend mirrors its I/O to several backends. - */ -public class MultiBackend implements Backend { - - // ------------------------------------------------------------------------ - // Variables -------------------------------------------------------------- - // ------------------------------------------------------------------------ - - /** - * The screen to use. - */ - private MultiScreen multiScreen; - - /** - * The list of backends to use. - */ - private List backends = new ArrayList(); - - /** - * The SessionInfo to return. - */ - private SessionInfo sessionInfo; - - // ------------------------------------------------------------------------ - // Constructors ----------------------------------------------------------- - // ------------------------------------------------------------------------ - - /** - * Public constructor requires one backend. Note that this backend's - * screen will be replaced with a MultiScreen. - * - * @param backend the backend to add - */ - public MultiBackend(final Backend backend) { - backends.add(backend); - if (backend instanceof TWindowBackend) { - multiScreen = new MultiScreen(((TWindowBackend) backend).getOtherScreen()); - } else { - multiScreen = new MultiScreen(backend.getScreen()); - } - if (backend instanceof GenericBackend) { - ((GenericBackend) backend).abortOnDisconnect = false; - } - sessionInfo = backend.getSessionInfo(); - } - - // ------------------------------------------------------------------------ - // Backend ---------------------------------------------------------------- - // ------------------------------------------------------------------------ - - /** - * Getter for sessionInfo. - * - * @return the SessionInfo - */ - public SessionInfo getSessionInfo() { - return sessionInfo; - } - - /** - * Getter for screen. - * - * @return the Screen - */ - public Screen getScreen() { - return multiScreen; - } - - /** - * Subclasses must provide an implementation that syncs the logical - * screen to the physical device. - */ - public void flushScreen() { - for (Backend backend: backends) { - backend.flushScreen(); - } - } - - /** - * Check if there are events in the queue. - * - * @return if true, getEvents() has something to return to the application - */ - public boolean hasEvents() { - if (backends.size() == 0) { - return true; - } - for (Backend backend: backends) { - if (backend.hasEvents()) { - return true; - } - } - return false; - } - - /** - * Subclasses must provide an implementation to get keyboard, mouse, and - * screen resize events. - * - * @param queue list to append new events to - */ - public void getEvents(List queue) { - List backendsToRemove = null; - for (Backend backend: backends) { - if (backend.hasEvents()) { - backend.getEvents(queue); - - // This default backend assumes a single user, and if that - // user becomes disconnected we should terminate the - // application. - if (queue.size() > 0) { - TInputEvent event = queue.get(queue.size() - 1); - if (event instanceof TCommandEvent) { - TCommandEvent command = (TCommandEvent) event; - if (command.equals(cmBackendDisconnect)) { - if (backendsToRemove == null) { - backendsToRemove = new ArrayList(); - } - backendsToRemove.add(backend); - } - } - } - } - } - if (backendsToRemove != null) { - for (Backend backend: backendsToRemove) { - multiScreen.removeScreen(backend.getScreen()); - backends.remove(backend); - backend.shutdown(); - } - } - if (backends.size() == 0) { - queue.add(new TCommandEvent(cmAbort)); - } - } - - /** - * Subclasses must provide an implementation that closes sockets, - * restores console, etc. - */ - public void shutdown() { - for (Backend backend: backends) { - backend.shutdown(); - } - } - - /** - * Subclasses must provide an implementation that sets the window title. - * - * @param title the new title - */ - public void setTitle(final String title) { - for (Backend backend: backends) { - backend.setTitle(title); - } - } - - /** - * Set listener to a different Object. - * - * @param listener the new listening object that run() wakes up on new - * input - */ - public void setListener(final Object listener) { - for (Backend backend: backends) { - backend.setListener(listener); - } - } - - /** - * Reload backend options from System properties. - */ - public void reloadOptions() { - for (Backend backend: backends) { - backend.reloadOptions(); - } - } - - // ------------------------------------------------------------------------ - // MultiBackend ----------------------------------------------------------- - // ------------------------------------------------------------------------ - - /** - * Add a backend to the list. - * - * @param backend the backend to add - */ - public void addBackend(final Backend backend) { - backends.add(backend); - if (backend instanceof TWindowBackend) { - multiScreen.addScreen(((TWindowBackend) backend).getOtherScreen()); - } else { - multiScreen.addScreen(backend.getScreen()); - } - if (backend instanceof GenericBackend) { - ((GenericBackend) backend).abortOnDisconnect = false; - } - } - - /** - * Remove a backend from the list. - * - * @param backend the backend to remove - */ - public void removeBackend(final Backend backend) { - if (backends.size() > 1) { - if (backend instanceof TWindowBackend) { - multiScreen.removeScreen(((TWindowBackend) backend).getOtherScreen()); - } else { - multiScreen.removeScreen(backend.getScreen()); - } - backends.remove(backend); - } - } - -}