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package org.eclipse.jst.jsf.facelet.core.internal.view;
import java.util.Iterator;
import java.util.List;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.content.IContentType;
import org.eclipse.core.runtime.content.IContentTypeManager;
import org.eclipse.jst.jsf.common.internal.JSPUtil;
import org.eclipse.jst.jsf.common.runtime.internal.model.component.ComponentInfo;
import org.eclipse.jst.jsf.core.jsfappconfig.JSFAppConfigUtils;
import org.eclipse.jst.jsf.designtime.context.DTFacesContext;
import org.eclipse.jst.jsf.designtime.internal.view.DTUIViewRoot;
import org.eclipse.jst.jsf.designtime.internal.view.DTUIViewRoot.VersionStamp;
import org.eclipse.jst.jsf.designtime.internal.view.DefaultDTViewHandler;
import org.eclipse.jst.jsf.designtime.internal.view.IViewDefnAdapterFactory;
import org.eclipse.jst.jsf.designtime.internal.view.XMLComponentTreeConstructionStrategy;
import org.eclipse.jst.jsf.designtime.internal.view.XMLViewDefnAdapter;
/**
* The Facelet design time view handler implementation.
*
* @author cbateman
*
*/
public class DTFaceletViewHandler extends DefaultDTViewHandler
{
private static final String ORG_ECLIPSE_WST_HTML_CORE_HTMLSOURCE = "org.eclipse.wst.html.core.htmlsource"; //$NON-NLS-1$
private static final String JAVAX_FACES_VIEW_ROOT = "javax.faces.ViewRoot"; //$NON-NLS-1$
@Override
public String calculateLocale(DTFacesContext context)
throws ViewHandlerException
{
// TODO Auto-generated method stub
return null;
}
@Override
public IResource getActionDefinition(DTFacesContext context, String viewId)
throws ViewHandlerException
{
// TODO: this seems like a bit of a cope out...
return context.adaptContextObject();
}
@Override
public IPath getActionURL(DTFacesContext context, IResource resource,
IPath requestPath) throws ViewHandlerException
{
// TODO Auto-generated method stub
return null;
}
@Override
public IPath getRelativeActionPath(DTFacesContext context,
String relativeToViewId, String uri) throws ViewHandlerException
{
// TODO Auto-generated method stub
return null;
}
@Override
public IViewDefnAdapterFactory getViewMetadataAdapterFactory(
DTFacesContext context) throws ViewHandlerException
{
final IResource res = context.adaptContextObject();
if (res instanceof IFile)
{
return new ViewDefnAdapterFactory(this, getDefaultViewMetadataAdapterFactory(context));
}
return null;
}
@Override
protected DTUIViewRoot newView(DTFacesContext facesContext, String viewId)
{
return new FaceletUIViewRoot(facesContext);
}
@Override
protected XMLComponentTreeConstructionStrategy createTreeConstructionStrategy(
XMLViewDefnAdapter adapter, IProject project)
{
return new XMLComponentTreeConstructionStrategy(adapter, project)
{
@SuppressWarnings("unchecked")
@Override
protected void populateViewRoot(DTUIViewRoot viewRoot, List children)
{
// facelets effectively ignores view roots created by the view
// defn. So we simply need to loop through all of children
// and add them to viewRoot unless they are view roots, in which
// case we add their children
for (final Iterator<?> it = children.iterator(); it.hasNext();)
{
final ComponentInfo child = (ComponentInfo) it.next();
if (child instanceof DTUIViewRoot ||
JAVAX_FACES_VIEW_ROOT.equals(child.getComponentTypeInfo().getComponentType()))
{
// add recursively
populateViewRoot(viewRoot, child.getChildren());
}
else
{
viewRoot.addChild(child);
}
}
}
};
}
@Override
public boolean supportsViewDefinition(final IFile file)
{
// XXX: cover case where we are in a JSF 1.2 project and the file is facelet.
return JSFAppConfigUtils.isValidJSFProject(file.getProject(), "2.0") && //$NON-NLS-1$
(JSPUtil.isJSPContentType(file) || isHTMLContent(file));
}
boolean isHTMLContent(final IFile file)
{
final IContentTypeManager typeManager = Platform
.getContentTypeManager();
IContentType htmlContentType = typeManager
.getContentType(ORG_ECLIPSE_WST_HTML_CORE_HTMLSOURCE);
if (htmlContentType != null
&& htmlContentType.isAssociatedWith(file.getName()))
{
return true;
}
return false;
}
@Override
protected VersionStamp createVersionStamp(DTFacesContext facesContext,
String viewId)
{
return new TimeBasedVersionStamp();
}
}
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