| // Copyright 2004 The Apache Software Foundation |
| // |
| // 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.apache.tapestry.wml; |
| |
| import org.apache.tapestry.AbstractComponent; |
| import org.apache.tapestry.IBinding; |
| import org.apache.tapestry.IMarkupWriter; |
| import org.apache.tapestry.IRequestCycle; |
| import org.apache.tapestry.Tapestry; |
| |
| /** |
| * The Timer element declares a card timer, which exposes a means of processing inactivity or idle time. |
| * The timer is initialised and started at card entry and is stopped when the card is exited. |
| * |
| * @version $Id$ |
| * @author David Solis |
| * @since 3.0 |
| */ |
| |
| public abstract class Timer extends AbstractComponent |
| { |
| /** |
| * @see AbstractComponent#renderComponent(IMarkupWriter, IRequestCycle) |
| **/ |
| |
| protected void renderComponent(IMarkupWriter writer, IRequestCycle cycle) |
| { |
| boolean render = !cycle.isRewinding(); |
| |
| if (render) |
| { |
| writer.beginEmpty("timer"); |
| |
| writer.attribute("name", getName()); |
| |
| String value = readValue(); |
| if (Tapestry.isNonBlank(value)) |
| writer.attribute("value", value); |
| else |
| writer.attribute("value", "0"); |
| |
| renderInformalParameters(writer, cycle); |
| |
| writer.closeTag(); |
| } |
| } |
| |
| public abstract String getName(); |
| |
| public abstract IBinding getValueBinding(); |
| |
| public String readValue() |
| { |
| return getValueBinding().getString(); |
| } |
| } |