1) Moved net.sourceforge.phpeclipse.ui\src\net\sourceforge\phpdt back to net.sourcefo...
[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpdt / internal / ui / text / template / DeclarationEngine.java
diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/text/template/DeclarationEngine.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/text/template/DeclarationEngine.java
new file mode 100644 (file)
index 0000000..69781c9
--- /dev/null
@@ -0,0 +1,299 @@
+/*
+ * (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.core.compiler.ITerminalSymbols.TokenName;
+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 TokenName fLastSignificantToken;
+
+       private IProject fProject;
+
+       // private IFile fFile;
+       private String fFileName;
+
+       /**
+        * Creates the template engine for a particular context type. See
+        * <code>TemplateContext</code> for supported context types.
+        */
+       public DeclarationEngine(IProject project, JavaContextType contextType,
+                       TokenName 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 <code>null</code>)
+        */
+       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
+        * <code>completionPosition</code> 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 <code>null</code>)
+        */
+       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 MINUS_GREATER:
+                                               if (type != PHPIdentifierLocation.METHOD
+                                                               && type != PHPIdentifierLocation.VARIABLE) {
+                                                       continue; // for loop
+                                               }
+                                               break;
+                                       case VARIABLE:
+                                               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 THIS_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 NEW:
+                                               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
+        * <code>completionPosition</code> 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 <code>null</code>)
+        */
+       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 MINUS_GREATER:
+                                               if (type != PHPIdentifierLocation.METHOD
+                                                               && type != PHPIdentifierLocation.VARIABLE) {
+                                                       continue; // for loop
+                                               }
+                                               break;
+                                       case VARIABLE:
+                                               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 THIS_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 NEW:
+                                               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));
+                               }
+                       }
+               }
+
+       }
+
+}