org.metawidget.statically.html.layout.HtmlLayout Maven / Gradle / Ivy
// Metawidget
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
package org.metawidget.statically.html.layout;
import static org.metawidget.inspector.InspectionResultConstants.*;
import java.util.Map;
import org.metawidget.layout.iface.Layout;
import org.metawidget.statically.StaticWidget;
import org.metawidget.statically.StaticXmlWidget;
import org.metawidget.statically.html.StaticHtmlMetawidget;
import org.metawidget.statically.html.widgetbuilder.HtmlLabel;
import org.metawidget.statically.html.widgetbuilder.HtmlTag;
/**
* @author Richard Kennard
* @author Ryan Bradley
*/
public abstract class HtmlLayout
implements Layout {
//
// Protected methods
//
/**
* @param elementName
* can be useful if the Layout needs to call a WidgetProcessor
* @return whether a label was written
*/
protected boolean layoutLabel( HtmlTag tag, StaticXmlWidget widgetNeedingLabel, String elementName, Map attributes, StaticHtmlMetawidget metawidget ) {
if ( TRUE.equals( attributes.get(HIDDEN) ) ) {
return false;
}
HtmlTag label = createLabel( widgetNeedingLabel, elementName, attributes, metawidget );
tag.getChildren().add( label );
return true;
}
/**
* @param elementName
* can be useful if the Layout needs to call a WidgetProcessor
*/
protected HtmlTag createLabel( StaticXmlWidget widgetNeedingLabel, String elementName, Map attributes, StaticHtmlMetawidget metawidget ) {
HtmlLabel label = new HtmlLabel();
String id = getWidgetId( widgetNeedingLabel );
if ( id != null ) {
label.putAttribute( "for", id );
}
String labelText = metawidget.getLabelString( attributes );
if ( labelText != null && labelText.length() > 0 ) {
label.setTextContent( labelText + ":" );
}
return label;
}
/**
* Gets the id attribute of the given widget, recursing into child widgets if necessary.
*/
protected String getWidgetId( StaticXmlWidget widget ) {
String id = widget.getAttribute( "id" );
if ( id != null ) {
return id;
}
for ( StaticWidget child : widget.getChildren() ) {
id = getWidgetId( (StaticXmlWidget) child );
if ( id != null ) {
return id;
}
}
return null;
}
}