/**
* Copyright 2010 Google Inc.
*
* 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 org.waveprotocol.wave.client.render;
import org.waveprotocol.wave.model.conversation.Conversation;
import org.waveprotocol.wave.model.conversation.ConversationBlip;
import org.waveprotocol.wave.model.conversation.ConversationThread;
import org.waveprotocol.wave.model.conversation.ConversationView;
import org.waveprotocol.wave.model.wave.ParticipantId;
/**
* A wave renderer can render any part of a wave. A rendering of a wave part
* includes renderings of its sub-parts.
* <p>
* Note that a wave renderer can be constructed from modular definitions of how
* to render each component of a wave, by injecting the modular definitions (
* {@link RenderingRules}) into a {@link ReductionBasedRenderer}.
*/
public interface WaveRenderer<T> {
/** Renders a wave. Returns null if there are no conversations to render. */
T render(ConversationView wave);
/** Renders a conversation. */
T render(Conversation conversation);
/** Renders an anchor for a thread. */
T render(ConversationThread thread);
/** Renders a blip. */
T render(ConversationBlip blip);
/** Renders a participant. */
T render(Conversation conversation, ParticipantId participant);
}