/*
* (c) Copyright IBM Corp. 2000, 2001.
* All Rights Reserved.
*/
package net.sourceforge.phpdt.internal.ui.text.template;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.SortedMap;
import net.sourceforge.phpdt.core.ICompilationUnit;
import net.sourceforge.phpdt.core.compiler.ITerminalSymbols;
import net.sourceforge.phpdt.internal.corext.template.php.CompilationUnitContextType;
import net.sourceforge.phpdt.internal.corext.template.php.JavaContext;
import net.sourceforge.phpdt.internal.corext.template.php.JavaContextType;
import net.sourceforge.phpdt.internal.ui.text.java.IPHPCompletionProposal;
import net.sourceforge.phpeclipse.PHPeclipsePlugin;
import net.sourceforge.phpeclipse.builder.PHPIdentifierLocation;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.jface.text.Region;
import org.eclipse.swt.graphics.Point;
public class DeclarationEngine {
/** The context type. */
private JavaContextType fContextType;
/** The result proposals. */
private ArrayList fProposals = new ArrayList();
/** Token determines last which declarations are allowed for proposal */
private int fLastSignificantToken;
private IProject fProject;
// private IFile fFile;
private String fFileName;
/**
* Creates the template engine for a particular context type. See
* TemplateContext
for supported context types.
*/
public DeclarationEngine(IProject project, JavaContextType contextType,
int lastSignificantToken, IFile file) {
// Assert.isNotNull(contextType);
fProject = project;
fContextType = contextType;
fLastSignificantToken = lastSignificantToken;
// fFile = file;
if (file != null) {
fFileName = file.getProjectRelativePath().toString();
} else {
fFileName = "";
}
}
/**
* Empties the collector.
*
* @param viewer
* the text viewer
* @param unit
* the compilation unit (may be null
)
*/
public void reset() {
fProposals.clear();
}
/**
* Returns the array of matching templates.
*/
public IPHPCompletionProposal[] getResults() {
return (IPHPCompletionProposal[]) fProposals
.toArray(new IPHPCompletionProposal[fProposals.size()]);
}
/**
* Inspects the context of the compilation unit around
* completionPosition
and feeds the collector with proposals.
*
* @param viewer
* the text viewer
* @param completionPosition
* the context position in the document of the text viewer
* @param compilationUnit
* the compilation unit (may be null
)
*/
public void completeObject(ITextViewer viewer, int completionPosition,
SortedMap map, ICompilationUnit compilationUnit) {
IDocument document = viewer.getDocument();
if (!(fContextType instanceof CompilationUnitContextType))
return;
Point selection = viewer.getSelectedRange();
// remember selected text
String selectedText = null;
if (selection.y != 0) {
try {
selectedText = document.get(selection.x, selection.y);
} catch (BadLocationException e) {
}
}
JavaContext context = (JavaContext) fContextType.createContext(
document, completionPosition, selection.y, compilationUnit);
context.setVariable("selection", selectedText); //$NON-NLS-1$
int start = context.getStart();
int end = context.getEnd();
String prefix = context.getKey();
IRegion region = new Region(start, end - start);
String identifier = null;
SortedMap subMap = map.subMap(prefix, prefix + '\255');
Iterator iter = subMap.keySet().iterator();
PHPIdentifierLocation location;
ArrayList list;
int maxProposals = PHPeclipsePlugin.MAX_PROPOSALS;
while (iter.hasNext()) {
identifier = (String) iter.next();
if (context.canEvaluate(identifier)) {
list = (ArrayList) subMap.get(identifier);
for (int i = 0; i < list.size(); i++) {
location = (PHPIdentifierLocation) list.get(i);
int type = location.getType();
switch (fLastSignificantToken) {
case ITerminalSymbols.TokenNameMINUS_GREATER:
if (type != PHPIdentifierLocation.METHOD
&& type != PHPIdentifierLocation.VARIABLE) {
continue; // for loop
}
break;
case ITerminalSymbols.TokenNameVariable:
if (type != PHPIdentifierLocation.METHOD
&& type != PHPIdentifierLocation.VARIABLE) {
continue; // for loop
}
// check all filenames of the subclasses
// if (fFileName.equals(location.getFilename())) {
// continue; // for loop
// }
break;
case ITerminalSymbols.TokenNamethis_PHP_COMPLETION:
if (type != PHPIdentifierLocation.METHOD
&& type != PHPIdentifierLocation.VARIABLE) {
continue; // for loop
}
// check all filenames of the subclasses
// if (!fFileName.equals(location.getFilename())) {
// continue; // for loop
// }
break;
case ITerminalSymbols.TokenNamenew:
if (type != PHPIdentifierLocation.CLASS
&& type != PHPIdentifierLocation.CONSTRUCTOR) {
continue; // for loop
}
break;
default:
if (type == PHPIdentifierLocation.METHOD
|| type == PHPIdentifierLocation.CONSTRUCTOR
|| type == PHPIdentifierLocation.VARIABLE) {
continue; // for loop
}
}
if (maxProposals-- < 0) {
return;
}
fProposals.add(new DeclarationProposal(fProject,
identifier, location, context, region, viewer));
}
}
}
}
/**
* Inspects the context of the compilation unit around
* completionPosition
and feeds the collector with proposals.
*
* @param viewer
* the text viewer
* @param completionPosition
* the context position in the document of the text viewer
* @param compilationUnit
* the compilation unit (may be null
)
*/
public void complete(ITextViewer viewer, int completionPosition,
SortedMap map, ICompilationUnit compilationUnit) {
IDocument document = viewer.getDocument();
if (!(fContextType instanceof CompilationUnitContextType))
return;
Point selection = viewer.getSelectedRange();
// remember selected text
String selectedText = null;
if (selection.y != 0) {
try {
selectedText = document.get(selection.x, selection.y);
} catch (BadLocationException e) {
}
}
// ((CompilationUnitContextType)
// fContextType).setContextParameters(document, completionPosition,
// selection.y);
// CompilationUnitContext context = (CompilationUnitContext)
// fContextType.createContext();
JavaContext context = (JavaContext) fContextType.createContext(
document, completionPosition, selection.y, compilationUnit);
context.setVariable("selection", selectedText); //$NON-NLS-1$
int start = context.getStart();
int end = context.getEnd();
String prefix = context.getKey();
IRegion region = new Region(start, end - start);
String identifier = null;
SortedMap subMap = map.subMap(prefix, prefix + '\255');
Iterator iter = subMap.keySet().iterator();
PHPIdentifierLocation location;
ArrayList list;
int maxProposals = PHPeclipsePlugin.MAX_PROPOSALS;
while (iter.hasNext()) {
identifier = (String) iter.next();
if (context.canEvaluate(identifier)) {
list = (ArrayList) subMap.get(identifier);
for (int i = 0; i < list.size(); i++) {
location = (PHPIdentifierLocation) list.get(i);
int type = location.getType();
switch (fLastSignificantToken) {
case ITerminalSymbols.TokenNameMINUS_GREATER:
if (type != PHPIdentifierLocation.METHOD
&& type != PHPIdentifierLocation.VARIABLE) {
continue; // for loop
}
break;
case ITerminalSymbols.TokenNameVariable:
if (type != PHPIdentifierLocation.METHOD
&& type != PHPIdentifierLocation.VARIABLE) {
continue; // for loop
}
// check all filenames of the subclasses
if (fFileName.equals(location.getFilename())) {
continue; // for loop
}
break;
case ITerminalSymbols.TokenNamethis_PHP_COMPLETION:
if (type != PHPIdentifierLocation.METHOD
&& type != PHPIdentifierLocation.VARIABLE) {
continue; // for loop
}
// check all filenames of the subclasses
if (!fFileName.equals(location.getFilename())) {
continue; // for loop
}
break;
case ITerminalSymbols.TokenNamenew:
if (type != PHPIdentifierLocation.CLASS
&& type != PHPIdentifierLocation.CONSTRUCTOR) {
continue; // for loop
}
break;
default:
if (type == PHPIdentifierLocation.METHOD
|| type == PHPIdentifierLocation.CONSTRUCTOR
|| type == PHPIdentifierLocation.VARIABLE) {
continue; // for loop
}
}
if (maxProposals-- < 0) {
return;
}
fProposals.add(new DeclarationProposal(fProject,
identifier, location, context, region, viewer));
}
}
}
}
}