| // 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.components; |
| |
| import java.text.Format; |
| |
| import org.apache.tapestry.AbstractComponent; |
| import org.apache.tapestry.ApplicationRuntimeException; |
| import org.apache.tapestry.IBinding; |
| import org.apache.tapestry.IMarkupWriter; |
| import org.apache.tapestry.IRequestCycle; |
| import org.apache.tapestry.Tapestry; |
| |
| /** |
| * Used to insert some text (from a parameter) into the HTML. |
| * |
| * [<a href="../../../../../ComponentReference/Insert.html">Component Reference</a>] |
| * |
| * @author Howard Lewis Ship |
| * @version $Id$ |
| * |
| **/ |
| |
| public abstract class Insert extends AbstractComponent |
| { |
| public abstract IBinding getFormatBinding(); |
| |
| /** |
| * Prints its value parameter, possibly formatted by its format parameter. |
| * |
| **/ |
| |
| protected void renderComponent(IMarkupWriter writer, IRequestCycle cycle) |
| { |
| if (cycle.isRewinding()) |
| return; |
| |
| Object value = getValue(); |
| |
| if (value == null) |
| return; |
| |
| String insert = null; |
| |
| Format format = getFormat(); |
| |
| if (format == null) |
| { |
| insert = value.toString(); |
| } |
| else |
| { |
| try |
| { |
| insert = format.format(value); |
| } |
| catch (Exception ex) |
| { |
| throw new ApplicationRuntimeException( |
| Tapestry.format("Insert.unable-to-format", value), |
| this, |
| getFormatBinding().getLocation(), |
| ex); |
| } |
| } |
| |
| String styleClass = getStyleClass(); |
| |
| if (styleClass != null) |
| { |
| writer.begin("span"); |
| writer.attribute("class", styleClass); |
| |
| renderInformalParameters(writer, cycle); |
| } |
| |
| if (getRaw()) |
| writer.printRaw(insert); |
| else |
| writer.print(insert); |
| |
| if (styleClass != null) |
| writer.end(); // <span> |
| } |
| |
| public abstract Object getValue(); |
| |
| public abstract Format getFormat(); |
| |
| public abstract String getStyleClass(); |
| |
| public abstract boolean getRaw(); |
| |
| } |