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- /*
- * Copyright (c) 2006-2017 DMDirc Developers
- *
- * 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.
- */
-
- package com.dmdirc.ui.messages;
-
- import com.dmdirc.events.DisplayProperty;
- import com.dmdirc.events.DisplayableEvent;
- import com.dmdirc.events.eventbus.EventBus;
- import com.dmdirc.interfaces.WindowModel;
- import com.dmdirc.util.EventUtils;
- import java.util.Arrays;
- import net.engio.mbassy.listener.Handler;
-
- /**
- * Models the history of a window in the client.
- */
- public class BackBufferImpl implements BackBuffer {
-
- private final Document document;
- private final Styliser styliser;
- private final EventBus eventBus;
- private final EventFormatter formatter;
- private final WindowModel owner;
-
- public BackBufferImpl(
- final WindowModel owner,
- final ColourManagerFactory colourManagerFactory,
- final EventFormatter formatter) {
- this.owner = owner;
- this.styliser = new Styliser(
- owner.getConnection().orElse(null),
- owner.getConfigManager(),
- colourManagerFactory.getColourManager(owner.getConfigManager()));
- this.document = new IRCDocument(owner.getConfigManager(), styliser);
- this.eventBus = owner.getEventBus();
- this.formatter = formatter;
- }
-
- /**
- * Starts adding events received on the event bus to this buffer's document.
- */
- public void startAddingEvents() {
- eventBus.subscribe(this);
- }
-
- /**
- * Stops adding events received on the event bus to this buffer's document.
- */
- public void stopAddingEvents() {
- eventBus.unsubscribe(this);
- }
-
- /**
- * Handles a displayable event received on the event bus.
- *
- * @param event The event to be displayed.
- */
- @Handler(priority = EventUtils.PRIORITY_DISPLAYABLE_EVENT_HANDLER)
- private void handleDisplayableEvent(final DisplayableEvent event) {
- if (shouldDisplay(event)) {
- formatter.format(event).map(s -> s.split("\n")).map(Arrays::stream).ifPresent(
- t -> t.forEach(line -> document.addText(
- event.getTimestamp(), event.getDisplayProperties(), line)));
- }
- }
-
- /**
- * Determines if the specified event should be displayed in this backbuffer.
- *
- * @param event The event to check
- * @return True if the event should be displayed, false otherwise.
- */
- private boolean shouldDisplay(final DisplayableEvent event) {
- return event.getSource().equals(owner)
- && !event.hasDisplayProperty(DisplayProperty.DO_NOT_DISPLAY);
- }
-
- @Override
- public Document getDocument() {
- return document;
- }
-
- @Override
- public Styliser getStyliser() {
- return styliser;
- }
-
- }
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