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package org.eclipse.fx.ide.fxml.editors;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.Path;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.ui.JavaUI;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.jface.text.Region;
import org.eclipse.jface.text.hyperlink.AbstractHyperlinkDetector;
import org.eclipse.jface.text.hyperlink.IHyperlink;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.part.FileEditorInput;
import org.eclipse.wst.sse.core.internal.provisional.IndexedRegion;
import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument;
import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion;
import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegion;
import org.eclipse.wst.sse.ui.internal.contentassist.ContentAssistUtils;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode;
import org.eclipse.wst.xml.core.internal.regions.DOMRegionContext;
import org.w3c.dom.Node;
import org.w3c.dom.ProcessingInstruction;
@SuppressWarnings("restriction")
public class FXMLHyperlinkDetector extends AbstractHyperlinkDetector {
public FXMLHyperlinkDetector() {
}
@Override
public IHyperlink[] detectHyperlinks(ITextViewer textViewer, IRegion hoverRegion, boolean canShowMultipleHyperlinks) {
if ((hoverRegion == null) || (textViewer == null) || (textViewer.getDocument() == null)) {
return null;
}
int documentOffset = hoverRegion.getOffset();
IndexedRegion treeNode = ContentAssistUtils.getNodeAt(textViewer, documentOffset);
if (treeNode == null) {
return null;
}
Node node = (Node) treeNode;
while ((node != null) && (node.getNodeType() == Node.TEXT_NODE) && (node.getParentNode() != null)) {
node = node.getParentNode();
}
IStructuredDocumentRegion flatNode = ((IStructuredDocument) textViewer.getDocument()).getRegionAtCharacterOffset(documentOffset);
if (flatNode != null) {
ITextRegion region = flatNode.getRegionAtCharacterOffset(documentOffset);
if (region != null) {
String regionType = region.getType();
IHyperlink link = null;
if (regionType == DOMRegionContext.XML_TAG_NAME) {
IDOMNode dom = (IDOMNode)treeNode;
if( !(dom instanceof ProcessingInstruction) ) {
link = new FXMLJavaElementHyperLink(null,new Region(flatNode.getStartOffset(region), region.getTextLength()), dom, regionType, documentOffset);
}
}
else if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_NAME) {
IDOMNode dom = (IDOMNode)treeNode;
if( dom instanceof ProcessingInstruction ) {
String fqn = dom.getNodeValue();
if( fqn.endsWith("?") ) {
fqn = fqn.substring(0,fqn.length()-1);
}
link = new FXMLJavaElementHyperLink(Util.findType(fqn, dom.getOwnerDocument()),new Region(flatNode.getStartOffset(region), region.getTextLength()), (IDOMNode)treeNode, regionType, documentOffset);
} else {
link = new FXMLJavaElementHyperLink(null,new Region(flatNode.getStartOffset(region), region.getTextLength()), (IDOMNode)treeNode, regionType, documentOffset);
}
}
else if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_VALUE) {
IJavaElement element = FXMLTextHover.computeTagAttValueHelp((IDOMNode) treeNode, documentOffset);
if( element != null ) {
link = new FXMLJavaElementHyperLink(element,new Region(flatNode.getStartOffset(region), region.getTextLength()), (IDOMNode)treeNode, regionType, documentOffset);
}
} else if( regionType == DOMRegionContext.XML_PI_CONTENT ) {
IDOMNode dom = (IDOMNode)treeNode;
String value = dom.getNodeValue();
// Strip the ? it is part of the value
if( value.endsWith("?") ) {
value = value.substring(0,value.length()-1);
}
if( value.endsWith(".css") || value.endsWith(".properties") ) {
link = new ResourceHyperLink(new Region(flatNode.getStartOffset(region), region.getTextLength()), (IDOMNode) treeNode, value);
} else {
if(! value.endsWith("*") ) {
link = new FXMLJavaElementHyperLink(Util.findType(value, dom.getOwnerDocument()),new Region(flatNode.getStartOffset(region), region.getTextLength()), (IDOMNode)treeNode, regionType, documentOffset);
}
}
}
if( link != null ) {
return new IHyperlink[] {link};
}
}
}
return null;
}
static class ResourceHyperLink implements IHyperlink {
private final IRegion region;
private final IDOMNode xmlnode;
private final String resourceValue;
public ResourceHyperLink(IRegion region, IDOMNode xmlnode, String resourceValue) {
this.region = region;
this.xmlnode = xmlnode;
this.resourceValue = resourceValue;
}
@Override
public IRegion getHyperlinkRegion() {
return region;
}
@Override
public String getTypeLabel() {
return null;
}
@Override
public String getHyperlinkText() {
return null;
}
@Override
public void open() {
String baseLocation = xmlnode.getModel().getBaseLocation();
IContainer c = ResourcesPlugin.getWorkspace().getRoot().getFile(new Path(baseLocation)).getParent();
IFile f = c.getFile(new Path(resourceValue));
if( resourceValue.endsWith(".css") ) {
try {
PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().openEditor(new FileEditorInput(f), "org.eclipse.fx.ide.css.CssDsl");
} catch (PartInitException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
static class FXMLJavaElementHyperLink implements IHyperlink {
private final IRegion region;
private final IDOMNode xmlnode;
private final String regionType;
private final int documentOffset;
private final IJavaElement element;
public FXMLJavaElementHyperLink(IJavaElement element, IRegion region, IDOMNode xmlnode, String regionType, int documentOffset) {
this.element = element;
this.region = region;
this.xmlnode = xmlnode;
this.regionType = regionType;
this.documentOffset = documentOffset;
}
@Override
public IRegion getHyperlinkRegion() {
return region;
}
@Override
public String getTypeLabel() {
return null;
}
@Override
public String getHyperlinkText() {
return null;
}
@Override
public void open() {
IJavaElement element = this.element;
if( element == null ) {
if (regionType == DOMRegionContext.XML_TAG_NAME) {
element = FXMLTextHover.computeTagNameHelp(xmlnode);
}
else if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_NAME) {
element = FXMLTextHover.computeTagAttNameHelp(xmlnode, documentOffset);
}
else if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_VALUE) {
element = FXMLTextHover.computeTagAttValueHelp(xmlnode, documentOffset);
}
}
if( element != null ) {
try {
JavaUI.openInEditor(element);
} catch (PartInitException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (JavaModelException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
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