/
AbstractWidget.java
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/
AbstractWidget.java
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package org.rapidoid.gui.base;
import org.rapidoid.RapidoidThing;
import org.rapidoid.annotation.Authors;
import org.rapidoid.annotation.Since;
import org.rapidoid.gui.GUI;
import org.rapidoid.gui.reqinfo.IReqInfo;
import org.rapidoid.gui.reqinfo.ReqInfo;
import org.rapidoid.html.Tag;
import org.rapidoid.html.TagWidget;
import org.rapidoid.html.impl.TagRenderer;
import org.rapidoid.html.tag.ATag;
import org.rapidoid.html.tag.TdTag;
import org.rapidoid.html.tag.ThTag;
import org.rapidoid.u.U;
import org.rapidoid.util.Constants;
/*
* #%L
* rapidoid-gui
* %%
* Copyright (C) 2014 - 2016 Nikolche Mihajlovski and contributors
* %%
* 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.
* #L%
*/
@Authors("Nikolche Mihajlovski")
@Since("2.0.0")
public abstract class AbstractWidget<W extends AbstractWidget<?>> extends RapidoidThing implements TagWidget<Object>, Constants {
private Object extra;
protected abstract Object render();
private volatile boolean visible = true;
@Override
public final Object render(Object extra) {
this.extra = extra;
// TODO ignore the exchange?
Object rendered = render();
if (!visible) {
rendered.toString(); // to process events
return "";
}
return rendered;
}
public String widgetId() {
String type = getClass().getSimpleName().toLowerCase();
return type + seq(type);
}
public String seq(String seqName) {
String seq = "__seq_" + seqName;
int seqNum = (Integer) U.or(req().attrs().get(seq), 0);
seqNum++;
req().attrs().put(seq, seqNum);
return "" + seqNum;
}
public boolean visible() {
return visible;
}
public W visible(boolean visible) {
this.visible = visible;
return (W) this;
}
@Override
public String toString() {
return TagRenderer.get().toHTML(this, extra);
}
protected static IReqInfo req() {
return ReqInfo.get();
}
protected static Tag div(Object... contents) {
return GUI.div(contents);
}
protected static Tag span(Object... contents) {
return GUI.span(contents);
}
protected static Tag li(Object... contents) {
return GUI.li(contents);
}
protected static Tag tr(Object... contents) {
return GUI.tr(contents);
}
protected static TdTag td(Object... contents) {
return GUI.td(contents);
}
protected static ThTag th(Object... contents) {
return GUI.th(contents);
}
protected static ATag a(Object... contents) {
return GUI.a(contents);
}
}