/**
* 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.wavepanel.view.dom;
import com.google.gwt.dom.client.Document;
import com.google.gwt.dom.client.Element;
import org.waveprotocol.wave.client.wavepanel.view.dom.full.TopConversationViewBuilder.Components;
/**
* Dom impl of a conversation view.
*
*/
public final class TopConversationDomImpl implements DomView {
/** The DOM element of this view. */
private final Element self;
/** The HTML id of {@code self}. */
private final String id;
//
// UI fields for both intrinsic and structural elements.
// Element references are loaded lazily and cached.
//
private Element threadContainer;
private Element toolbarContainer;
TopConversationDomImpl(Element e, String id) {
this.self = e;
this.id = id;
}
public static TopConversationDomImpl of(Element e) {
return new TopConversationDomImpl(e, e.getId());
}
//
// DomView nature.
//
@Override
public Element getElement() {
return self;
}
@Override
public String getId() {
return id;
}
//
// Structure.
//
protected Element getThreadContainer() {
if (threadContainer == null) {
threadContainer = Document.get().getElementById(Components.THREAD_CONTAINER.getDomId(id));
}
return threadContainer;
}
private Element getToolbarContainer() {
if (toolbarContainer == null) {
toolbarContainer = Document.get().getElementById(Components.TOOLBAR_CONTAINER.getDomId(id));
}
return toolbarContainer;
}
public Element getParticipants() {
return self.getFirstChildElement();
}
public Element getThread() {
return getThreadContainer().getFirstChildElement();
}
public void setToolbar(Element toolbar) {
getToolbarContainer().setInnerHTML("");
if (toolbar != null) {
getToolbarContainer().appendChild(toolbar);
}
}
public void remove() {
getElement().removeFromParent();
}
//
// Equality.
//
@Override
public boolean equals(Object obj) {
return DomViewHelper.equals(this, obj);
}
@Override
public int hashCode() {
return DomViewHelper.hashCode(this);
}
}