package tk.eclipse.plugin.htmleditor.assist;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.internal.core.DefaultWorkingCopyOwner;
import org.eclipse.jdt.internal.ui.text.java.JavaCompletionProposal;
import org.eclipse.jdt.internal.ui.text.java.LazyJavaTypeCompletionProposal;
import org.eclipse.jdt.ui.text.java.CompletionProposalCollector;
import org.eclipse.jdt.ui.text.java.IJavaCompletionProposal;
import org.eclipse.jface.fieldassist.IContentProposal;
import org.eclipse.jface.fieldassist.IContentProposalProvider;
import tk.eclipse.plugin.htmleditor.assist.FieldAssistUtils.ContentProposalImpl;
/**
*
* @author Naoki Takezoe
*/
public class PackageNameContentProposalProvider implements IContentProposalProvider {
private IJavaProject project;
/**
* Constructor.
*
* @param project the Java project
*/
public PackageNameContentProposalProvider(IJavaProject project){
this.project = project;
}
public void setJavaProject(IJavaProject project){
this.project = project;
}
public IContentProposal[] getProposals(String contents, int position) {
if(this.project==null){
return null;
}
try {
CompletionProposalCollector collector = new CompletionProposalCollector(project);
ICompilationUnit unit = FieldAssistUtils.getTemporaryCompilationUnit(project);
contents = contents.substring(0, position);
String source = "package " + contents;
FieldAssistUtils.setContentsToCU(unit, source);
unit.codeComplete(source.length(), collector, DefaultWorkingCopyOwner.PRIMARY);
IJavaCompletionProposal[] proposals = collector.getJavaCompletionProposals();
List<ContentProposalImpl> result = new ArrayList<ContentProposalImpl>();
for(int j=0;j<proposals.length;j++){
if(proposals[j].getImage()!=null){
String replaceString = null;
if(proposals[j] instanceof LazyJavaTypeCompletionProposal){
LazyJavaTypeCompletionProposal p = (LazyJavaTypeCompletionProposal)proposals[j];
replaceString = p.getReplacementString();
} else if(proposals[j] instanceof JavaCompletionProposal){
JavaCompletionProposal p = (JavaCompletionProposal)proposals[j];
replaceString = p.getReplacementString();
}
if(replaceString!=null && replaceString.startsWith(contents)){
result.add(new FieldAssistUtils.ContentProposalImpl(replaceString, position));
}
}
}
return result.toArray(new IContentProposal[result.size()]);
} catch(Exception ex){
ex.printStackTrace();
}
return null;
}
}