**********************************************************************/
package net.sourceforge.phpeclipse.phpeditor.php;
-import java.text.MessageFormat;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.SortedMap;
+import net.sourceforge.phpdt.core.ToolFactory;
+import net.sourceforge.phpdt.core.compiler.ITerminalSymbols;
+import net.sourceforge.phpdt.core.compiler.InvalidInputException;
+import net.sourceforge.phpdt.internal.compiler.parser.Scanner;
+import net.sourceforge.phpdt.internal.corext.template.ContextType;
+import net.sourceforge.phpdt.internal.corext.template.ContextTypeRegistry;
+import net.sourceforge.phpdt.internal.corext.template.php.CompilationUnitContextType;
+import net.sourceforge.phpdt.internal.corext.template.php.PHPUnitContext;
+import net.sourceforge.phpdt.internal.ui.text.java.IPHPCompletionProposal;
+import net.sourceforge.phpdt.internal.ui.text.java.PHPCompletionProposalComparator;
+import net.sourceforge.phpdt.internal.ui.text.template.BuiltInEngine;
+import net.sourceforge.phpdt.internal.ui.text.template.DeclarationEngine;
+import net.sourceforge.phpdt.internal.ui.text.template.IdentifierEngine;
+import net.sourceforge.phpdt.internal.ui.text.template.TemplateEngine;
+import net.sourceforge.phpeclipse.PHPeclipsePlugin;
+import net.sourceforge.phpeclipse.builder.IdentifierIndexManager;
+import net.sourceforge.phpeclipse.phpeditor.AbstractContentOutlinePage;
+import net.sourceforge.phpeclipse.phpeditor.PHPContentOutlinePage;
+import net.sourceforge.phpeclipse.phpeditor.PHPEditor;
+import net.sourceforge.phpeclipse.phpeditor.PHPSyntaxRdr;
+
+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.ITextViewer;
import org.eclipse.jface.text.TextPresentation;
-import org.eclipse.jface.text.contentassist.CompletionProposal;
-import org.eclipse.jface.text.contentassist.ContextInformation;
import org.eclipse.jface.text.contentassist.ICompletionProposal;
import org.eclipse.jface.text.contentassist.IContentAssistProcessor;
import org.eclipse.jface.text.contentassist.IContextInformation;
+import org.eclipse.jface.text.contentassist.IContextInformationExtension;
import org.eclipse.jface.text.contentassist.IContextInformationPresenter;
import org.eclipse.jface.text.contentassist.IContextInformationValidator;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.ui.IEditorPart;
+import org.eclipse.ui.IFileEditorInput;
/**
* Example PHP completion processor.
*/
public class PHPCompletionProcessor implements IContentAssistProcessor {
- /**
- * Simple content assist tip closer. The tip is valid in a range
- * of 5 characters around its popup location.
- */
- protected static class Validator implements IContextInformationValidator, IContextInformationPresenter {
-
- protected int fInstallOffset;
-
- /*
- * @see IContextInformationValidator#isContextInformationValid(int)
- */
- public boolean isContextInformationValid(int offset) {
- return Math.abs(fInstallOffset - offset) < 5;
- }
-
- /*
- * @see IContextInformationValidator#install(IContextInformation, ITextViewer, int)
- */
- public void install(IContextInformation info, ITextViewer viewer, int offset) {
- fInstallOffset = offset;
- }
-
- /*
- * @see org.eclipse.jface.text.contentassist.IContextInformationPresenter#updatePresentation(int, TextPresentation)
- */
- public boolean updatePresentation(int documentPosition, TextPresentation presentation) {
- return false;
- }
- };
-
- protected final static String[] fgProposals =
- {
- "array",
- "break",
- "class",
- "continue",
- "do",
- "echo",
- "else",
- "elseif",
- "endfor",
- "endif",
- "for",
- "if",
- "while",
- "endwhile",
- "switch",
- "case",
- "endswitch",
- "return",
- "define",
- "include",
- "include_once",
- "require",
- "require_once",
- "function",
- "new",
- "old_function",
- "default",
- "global",
- "static",
- "foreach",
- "endforeach",
- "extends",
- "empty",
- "isset",
- "var" };
-
- protected IContextInformationValidator fValidator = new Validator();
-
- /* (non-Javadoc)
- * Method declared on IContentAssistProcessor
- */
- public ICompletionProposal[] computeCompletionProposals(ITextViewer viewer, int documentOffset) {
- ICompletionProposal[] result = new ICompletionProposal[fgProposals.length];
- for (int i = 0; i < fgProposals.length; i++) {
- IContextInformation info = new ContextInformation(fgProposals[i], MessageFormat.format(PHPEditorMessages.getString("CompletionProcessor.Proposal.ContextInfo.pattern"), new Object[] { fgProposals[i] })); //$NON-NLS-1$
- result[i] = new CompletionProposal(fgProposals[i], documentOffset, 0, fgProposals[i].length(), null, fgProposals[i], info, MessageFormat.format(PHPEditorMessages.getString("CompletionProcessor.Proposal.hoverinfo.pattern"), new Object[] { fgProposals[i] })); //$NON-NLS-1$
- }
- return result;
- }
-
- /* (non-Javadoc)
- * Method declared on IContentAssistProcessor
- */
- public IContextInformation[] computeContextInformation(ITextViewer viewer, int documentOffset) {
- IContextInformation[] result = new IContextInformation[5];
- for (int i = 0; i < result.length; i++)
- result[i] = new ContextInformation(MessageFormat.format(PHPEditorMessages.getString("CompletionProcessor.ContextInfo.display.pattern"), new Object[] { new Integer(i), new Integer(documentOffset)}), //$NON-NLS-1$
- MessageFormat.format(PHPEditorMessages.getString("CompletionProcessor.ContextInfo.value.pattern"), new Object[] { new Integer(i), new Integer(documentOffset - 5), new Integer(documentOffset + 5)})); //$NON-NLS-1$
- return result;
- }
-
- /* (non-Javadoc)
- * Method declared on IContentAssistProcessor
- */
- public char[] getCompletionProposalAutoActivationCharacters() {
- return new char[] { '.', '(' };
- }
-
- /* (non-Javadoc)
- * Method declared on IContentAssistProcessor
- */
- public char[] getContextInformationAutoActivationCharacters() {
- return new char[] { '#' };
- }
-
- /* (non-Javadoc)
- * Method declared on IContentAssistProcessor
- */
- public IContextInformationValidator getContextInformationValidator() {
- return fValidator;
- }
-
- /* (non-Javadoc)
- * Method declared on IContentAssistProcessor
- */
- public String getErrorMessage() {
- return null;
- }
+ /**
+ * Simple content assist tip closer. The tip is valid in a range
+ * of 5 characters around its popup location.
+ */
+ protected static class Validator implements IContextInformationValidator, IContextInformationPresenter {
+
+ protected int fInstallOffset;
+
+ /*
+ * @see IContextInformationValidator#isContextInformationValid(int)
+ */
+ public boolean isContextInformationValid(int offset) {
+ return Math.abs(fInstallOffset - offset) < 5;
+ }
+
+ /*
+ * @see IContextInformationValidator#install(IContextInformation, ITextViewer, int)
+ */
+ public void install(IContextInformation info, ITextViewer viewer, int offset) {
+ fInstallOffset = offset;
+ }
+
+ /*
+ * @see org.eclipse.jface.text.contentassist.IContextInformationPresenter#updatePresentation(int, TextPresentation)
+ */
+ public boolean updatePresentation(int documentPosition, TextPresentation presentation) {
+ return false;
+ }
+ };
+
+ private static class ContextInformationWrapper implements IContextInformation, IContextInformationExtension {
+
+ private final IContextInformation fContextInformation;
+ private int fPosition;
+
+ public ContextInformationWrapper(IContextInformation contextInformation) {
+ fContextInformation = contextInformation;
+ }
+
+ /*
+ * @see IContextInformation#getContextDisplayString()
+ */
+ public String getContextDisplayString() {
+ return fContextInformation.getContextDisplayString();
+ }
+
+ /*
+ * @see IContextInformation#getImage()
+ */
+ public Image getImage() {
+ return fContextInformation.getImage();
+ }
+
+ /*
+ * @see IContextInformation#getInformationDisplayString()
+ */
+ public String getInformationDisplayString() {
+ return fContextInformation.getInformationDisplayString();
+ }
+
+ /*
+ * @see IContextInformationExtension#getContextInformationPosition()
+ */
+ public int getContextInformationPosition() {
+ return fPosition;
+ }
+
+ public void setContextInformationPosition(int position) {
+ fPosition = position;
+ }
+ };
+
+ private char[] fProposalAutoActivationSet;
+ protected IContextInformationValidator fValidator = new Validator();
+ private TemplateEngine fTemplateEngine;
+ private PHPCompletionProposalComparator fComparator;
+ private int fNumberOfComputedResults = 0;
+
+ public PHPCompletionProcessor() {
+
+ ContextType contextType = ContextTypeRegistry.getInstance().getContextType("php"); //$NON-NLS-1$
+ if (contextType != null)
+ fTemplateEngine = new TemplateEngine(contextType);
+
+ fComparator = new PHPCompletionProposalComparator();
+ }
+
+ /**
+ * Tells this processor to order the proposals alphabetically.
+ *
+ * @param order <code>true</code> if proposals should be ordered.
+ */
+ public void orderProposalsAlphabetically(boolean order) {
+ fComparator.setOrderAlphabetically(order);
+ }
+
+ /**
+ * Sets this processor's set of characters triggering the activation of the
+ * completion proposal computation.
+ *
+ * @param activationSet the activation set
+ */
+ public void setCompletionProposalAutoActivationCharacters(char[] activationSet) {
+ fProposalAutoActivationSet = activationSet;
+ }
+
+ /* (non-Javadoc)
+ * Method declared on IContentAssistProcessor
+ */
+ public ICompletionProposal[] computeCompletionProposals(ITextViewer viewer, int documentOffset) {
+ int contextInformationPosition = guessContextInformationPosition(viewer, documentOffset);
+ return internalComputeCompletionProposals(viewer, documentOffset, contextInformationPosition);
+ }
+
+ private int getLastToken(ITextViewer viewer, int completionPosition, PHPUnitContext context) {
+ IDocument document = viewer.getDocument();
+ int start = context.getStart();
+ int end = context.getEnd();
+
+ String startText;
+ int lastSignificantToken = ITerminalSymbols.TokenNameEOF;
+
+ try {
+ // begin search 2 lines behind of this
+ int j = start;
+ if (j != 0) {
+ char ch;
+ while (j-- > 0) {
+ ch = document.getChar(j);
+ if (ch == '\n') {
+ break;
+ }
+ }
+ while (j-- > 0) {
+ ch = document.getChar(j);
+ if (ch == '\n') {
+ break;
+ }
+ }
+ }
+ if (j != start) {
+ // scan the line for the dereferencing operator '->'
+ startText = document.get(j, start - j);
+ // System.out.println(startText);
+ Scanner scanner = ToolFactory.createScanner(false, false, false);
+ scanner.setSource(startText.toCharArray());
+ scanner.setPHPMode(true);
+ int token = ITerminalSymbols.TokenNameEOF;
+ int beforeLastToken = ITerminalSymbols.TokenNameEOF;
+ int lastToken = ITerminalSymbols.TokenNameEOF;
+
+ try {
+ token = scanner.getNextToken();
+ lastToken = token;
+ while (token != ITerminalSymbols.TokenNameERROR && token != ITerminalSymbols.TokenNameEOF) {
+ beforeLastToken = lastToken;
+ lastToken = token;
+ // System.out.println(scanner.toStringAction(lastToken));
+ token = scanner.getNextToken();
+ }
+ } catch (InvalidInputException e1) {
+ }
+ switch (lastToken) {
+ case ITerminalSymbols.TokenNameMINUS_GREATER :
+ // dereferencing operator '->' found
+ lastSignificantToken = ITerminalSymbols.TokenNameMINUS_GREATER;
+ if (beforeLastToken == ITerminalSymbols.TokenNamethis) {
+ lastSignificantToken = ITerminalSymbols.TokenNamethis;
+ }
+ break;
+ case ITerminalSymbols.TokenNamenew :
+ lastSignificantToken = ITerminalSymbols.TokenNamenew;
+ break;
+ }
+ }
+ } catch (BadLocationException e) {
+ }
+ return lastSignificantToken;
+ }
+
+ private ICompletionProposal[] internalComputeCompletionProposals(ITextViewer viewer, int offset, int contextOffset) {
+ IDocument document = viewer.getDocument();
+ Object[] identifiers = null;
+ IFile file = null;
+ IProject project = null;
+ if (offset > 0) {
+
+ PHPEditor editor = null;
+ AbstractContentOutlinePage outlinePage = null;
+
+ IEditorPart targetEditor = PHPeclipsePlugin.getActiveWorkbenchWindow().getActivePage().getActiveEditor();
+ if (targetEditor != null && (targetEditor instanceof PHPEditor)) {
+ editor = (PHPEditor) targetEditor;
+ file = ((IFileEditorInput) editor.getEditorInput()).getFile();
+ project = file.getProject();
+ outlinePage = editor.getfOutlinePage();
+ if (outlinePage instanceof PHPContentOutlinePage) {
+ identifiers = ((PHPContentOutlinePage) outlinePage).getVariables();
+ }
+ }
+ }
+
+ ContextType phpContextType = ContextTypeRegistry.getInstance().getContextType("php"); //$NON-NLS-1$
+ ((CompilationUnitContextType) phpContextType).setContextParameters(document, offset, 0);
+
+ PHPUnitContext context = (PHPUnitContext) phpContextType.createContext();
+ String prefix = context.getKey();
+
+ int lastSignificantToken = getLastToken(viewer, offset, context);
+ boolean useClassMembers =
+ (lastSignificantToken == ITerminalSymbols.TokenNameMINUS_GREATER) ||
+ (lastSignificantToken == ITerminalSymbols.TokenNamethis) ||
+ (lastSignificantToken == ITerminalSymbols.TokenNamenew);
+ boolean emptyPrefix = prefix == null || prefix.equals("");
+
+ if (fTemplateEngine != null) {
+ IPHPCompletionProposal[] templateResults = new IPHPCompletionProposal[0];
+
+ ICompletionProposal[] results;
+ if (!emptyPrefix) {
+ fTemplateEngine.reset();
+ fTemplateEngine.complete(viewer, offset); //, unit);
+ templateResults = fTemplateEngine.getResults();
+ }
+
+ IPHPCompletionProposal[] identifierResults = new IPHPCompletionProposal[0];
+ if ((!useClassMembers) && identifiers != null) {
+ IdentifierEngine identifierEngine;
+
+ ContextType contextType = ContextTypeRegistry.getInstance().getContextType("php"); //$NON-NLS-1$
+ if (contextType != null) {
+ identifierEngine = new IdentifierEngine(contextType);
+ identifierEngine.complete(viewer, offset, identifiers);
+ identifierResults = identifierEngine.getResults();
+ }
+ }
+
+ // declarations stored in file project.index on project level
+ IPHPCompletionProposal[] declarationResults = new IPHPCompletionProposal[0];
+ if (project != null) {
+ DeclarationEngine declarationEngine;
+
+ ContextType contextType = ContextTypeRegistry.getInstance().getContextType("php"); //$NON-NLS-1$
+ if (contextType != null) {
+ IdentifierIndexManager indexManager = PHPeclipsePlugin.getDefault().getIndexManager(project);
+ SortedMap sortedMap = indexManager.getIdentifierMap();
+
+ declarationEngine = new DeclarationEngine(contextType, lastSignificantToken, file);
+ declarationEngine.complete(viewer, offset, sortedMap);
+ declarationResults = declarationEngine.getResults();
+ }
+ }
+
+ // built in function names from phpsyntax.xml
+ ArrayList syntaxbuffer = PHPSyntaxRdr.getSyntaxData();
+ IPHPCompletionProposal[] builtinResults = new IPHPCompletionProposal[0];
+ if ((!useClassMembers) && syntaxbuffer != null) {
+ BuiltInEngine builtinEngine;
+ String proposal;
+
+ ContextType contextType = ContextTypeRegistry.getInstance().getContextType("php"); //$NON-NLS-1$
+ if (contextType != null) {
+ builtinEngine = new BuiltInEngine(contextType);
+ builtinEngine.complete(viewer, offset, syntaxbuffer);
+ builtinResults = builtinEngine.getResults();
+ }
+ }
+
+ // concatenate the result arrays
+ IPHPCompletionProposal[] total;
+ total =
+ new IPHPCompletionProposal[templateResults.length
+ + identifierResults.length
+ + builtinResults.length
+ + declarationResults.length];
+ System.arraycopy(templateResults, 0, total, 0, templateResults.length);
+ System.arraycopy(identifierResults, 0, total, templateResults.length, identifierResults.length);
+ System.arraycopy(builtinResults, 0, total, templateResults.length + identifierResults.length, builtinResults.length);
+ System.arraycopy(
+ declarationResults,
+ 0,
+ total,
+ templateResults.length + identifierResults.length + builtinResults.length,
+ declarationResults.length);
+
+ results = total;
+
+ fNumberOfComputedResults = (results == null ? 0 : results.length);
+ /*
+ * Order here and not in result collector to make sure that the order
+ * applies to all proposals and not just those of the compilation unit.
+ */
+ return order(results);
+ }
+ return new IPHPCompletionProposal[0];
+ }
+
+ private int guessContextInformationPosition(ITextViewer viewer, int offset) {
+ int contextPosition = offset;
+
+ IDocument document = viewer.getDocument();
+
+ // try {
+ //
+ // PHPCodeReader reader= new PHPCodeReader();
+ // reader.configureBackwardReader(document, offset, true, true);
+ //
+ // int nestingLevel= 0;
+ //
+ // int curr= reader.read();
+ // while (curr != PHPCodeReader.EOF) {
+ //
+ // if (')' == (char) curr)
+ // ++ nestingLevel;
+ //
+ // else if ('(' == (char) curr) {
+ // -- nestingLevel;
+ //
+ // if (nestingLevel < 0) {
+ // int start= reader.getOffset();
+ // if (looksLikeMethod(reader))
+ // return start + 1;
+ // }
+ // }
+ //
+ // curr= reader.read();
+ // }
+ // } catch (IOException e) {
+ // }
+
+ return contextPosition;
+ }
+
+ /* (non-Javadoc)
+ * Method declared on IContentAssistProcessor
+ */
+ // public IContextInformation[] computeContextInformation(ITextViewer viewer, int documentOffset) {
+ // IContextInformation[] result = new IContextInformation[5];
+ // for (int i = 0; i < result.length; i++)
+ // result[i] = new ContextInformation(MessageFormat.format(PHPEditorMessages.getString("CompletionProcessor.ContextInfo.display.pattern"), new Object[] { new Integer(i), new Integer(documentOffset)}), //$NON-NLS-1$
+ // MessageFormat.format(PHPEditorMessages.getString("CompletionProcessor.ContextInfo.value.pattern"), new Object[] { new Integer(i), new Integer(documentOffset - 5), new Integer(documentOffset + 5)})); //$NON-NLS-1$
+ // return result;
+ // }
+ /**
+ * @see IContentAssistProcessor#computeContextInformation(ITextViewer, int)
+ */
+ public IContextInformation[] computeContextInformation(ITextViewer viewer, int offset) {
+ int contextInformationPosition = guessContextInformationPosition(viewer, offset);
+ List result = addContextInformations(viewer, contextInformationPosition);
+ return (IContextInformation[]) result.toArray(new IContextInformation[result.size()]);
+ }
+
+ private List addContextInformations(ITextViewer viewer, int offset) {
+ ICompletionProposal[] proposals = internalComputeCompletionProposals(viewer, offset, -1);
+
+ List result = new ArrayList();
+ for (int i = 0; i < proposals.length; i++) {
+ IContextInformation contextInformation = proposals[i].getContextInformation();
+ if (contextInformation != null) {
+ ContextInformationWrapper wrapper = new ContextInformationWrapper(contextInformation);
+ wrapper.setContextInformationPosition(offset);
+ result.add(wrapper);
+ }
+ }
+ return result;
+ }
+
+ /**
+ * Order the given proposals.
+ */
+ private ICompletionProposal[] order(ICompletionProposal[] proposals) {
+ Arrays.sort(proposals, fComparator);
+ return proposals;
+ }
+
+ /* (non-Javadoc)
+ * Method declared on IContentAssistProcessor
+ */
+ public char[] getCompletionProposalAutoActivationCharacters() {
+ return fProposalAutoActivationSet;
+ // return null; // new char[] { '$' };
+ }
+
+ /* (non-Javadoc)
+ * Method declared on IContentAssistProcessor
+ */
+ public char[] getContextInformationAutoActivationCharacters() {
+ return new char[] {
+ };
+ }
+
+ /* (non-Javadoc)
+ * Method declared on IContentAssistProcessor
+ */
+ public IContextInformationValidator getContextInformationValidator() {
+ return fValidator;
+ }
+
+ /* (non-Javadoc)
+ * Method declared on IContentAssistProcessor
+ */
+ public String getErrorMessage() {
+ return null;
+ }
}
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