--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2000, 2004 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package net.sourceforge.phpdt.internal.corext.template.php;
+
+//import java.lang.reflect.InvocationTargetException;
+
+import net.sourceforge.phpdt.core.ICompilationUnit;
+//import net.sourceforge.phpdt.internal.corext.Assert;
+//import net.sourceforge.phpdt.internal.corext.template.php.CompilationUnitCompletion.LocalVariable;
+import net.sourceforge.phpdt.internal.corext.util.Strings;
+import net.sourceforge.phpdt.internal.ui.preferences.CodeFormatterPreferencePage;
+import net.sourceforge.phpdt.internal.ui.text.template.contentassist.MultiVariable;
+//import net.sourceforge.phpdt.internal.ui.util.ExceptionHandler;
+import net.sourceforge.phpeclipse.PHPeclipsePlugin;
+
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+//import org.eclipse.jface.dialogs.MessageDialog;
+//import org.eclipse.jface.preference.IPreferenceStore;
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.Document;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IRegion;
+import org.eclipse.jface.text.templates.Template;
+import org.eclipse.jface.text.templates.TemplateBuffer;
+import org.eclipse.jface.text.templates.TemplateContextType;
+import org.eclipse.jface.text.templates.TemplateException;
+import org.eclipse.jface.text.templates.TemplateTranslator;
+import org.eclipse.jface.text.templates.TemplateVariable;
+//import org.eclipse.swt.widgets.Shell;
+
+/**
+ * A context for java source.
+ */
+public class JavaContext extends CompilationUnitContext {
+
+ /** The platform default line delimiter. */
+ private static final String PLATFORM_LINE_DELIMITER = System
+ .getProperty("line.separator"); //$NON-NLS-1$
+
+ /** A code completion requestor for guessing local variable names. */
+ //private CompilationUnitCompletion fCompletion;
+
+ /**
+ * Creates a java template context.
+ *
+ * @param type
+ * the context type.
+ * @param document
+ * the document.
+ * @param completionOffset
+ * the completion offset within the document.
+ * @param completionLength
+ * the completion length.
+ * @param compilationUnit
+ * the compilation unit (may be <code>null</code>).
+ */
+ public JavaContext(TemplateContextType type, IDocument document,
+ int completionOffset, int completionLength,
+ ICompilationUnit compilationUnit) {
+ super(type, document, completionOffset, completionLength,
+ compilationUnit);
+ }
+
+ /**
+ * Returns the indentation level at the position of code completion.
+ */
+ private int getIndentation() {
+ int start = getStart();
+ IDocument document = getDocument();
+ try {
+ IRegion region = document.getLineInformationOfOffset(start);
+ String lineContent = document.get(region.getOffset(), region
+ .getLength());
+ return Strings.computeIndent(lineContent,
+ CodeFormatterPreferencePage.getTabSize());
+ // return Strings.computeIndent(lineContent,
+ // CodeFormatterUtil.getTabWidth());
+ } catch (BadLocationException e) {
+ return 0;
+ }
+ }
+
+ /*
+ * @see TemplateContext#evaluate(Template template)
+ */
+ public TemplateBuffer evaluate(Template template)
+ throws BadLocationException, TemplateException {
+
+ if (!canEvaluate(template))
+ throw new TemplateException(JavaTemplateMessages
+ .getString("Context.error.cannot.evaluate")); //$NON-NLS-1$
+
+ TemplateTranslator translator = new TemplateTranslator() {
+ /*
+ * @see org.eclipse.jface.text.templates.TemplateTranslator#createVariable(java.lang.String,
+ * java.lang.String, int[])
+ */
+ protected TemplateVariable createVariable(String type, String name,
+ int[] offsets) {
+ return new MultiVariable(type, name, offsets);
+ }
+ };
+ TemplateBuffer buffer = translator.translate(template);
+
+ getContextType().resolve(buffer, this);
+ String lineDelimiter = null;
+ try {
+ lineDelimiter = getDocument().getLineDelimiter(0);
+ } catch (BadLocationException e) {
+ }
+
+ if (lineDelimiter == null)
+ lineDelimiter = PLATFORM_LINE_DELIMITER;
+// IPreferenceStore prefs = PHPeclipsePlugin.getDefault()
+// .getPreferenceStore();
+ // axelcl start
+ // boolean useCodeFormatter =
+ // prefs.getBoolean(PreferenceConstants.TEMPLATES_USE_CODEFORMATTER);
+ boolean useCodeFormatter = false;
+ // axelcl end
+
+ JavaFormatter formatter = new JavaFormatter(lineDelimiter,
+ getIndentation(), useCodeFormatter);
+ formatter.format(buffer, this);
+ // debug start
+ // String res = buffer.getString();
+ // res = res.replaceAll("\n","/n");
+ // res = res.replaceAll("\t","/t");
+ // System.out.println(res);
+ // debug end
+ return buffer;
+ }
+
+ /*
+ * @see TemplateContext#canEvaluate(Template templates)
+ */
+ public boolean canEvaluate(Template template) {
+ String key = getKey();
+
+ if (fForceEvaluation)
+ return true;
+
+ return template.matches(key, getContextType().getId())
+ && key.length() != 0
+ && template.getName().toLowerCase().startsWith(
+ key.toLowerCase());
+ }
+
+ public boolean canEvaluate(String identifier) {
+ String prefix = getKey();
+ return identifier.toLowerCase().startsWith(prefix.toLowerCase());
+ }
+
+ /*
+ * @see DocumentTemplateContext#getCompletionPosition();
+ */
+ public int getStart() {
+
+ try {
+ IDocument document = getDocument();
+
+ if (getCompletionLength() == 0) {
+
+ int start = getCompletionOffset();
+ while ((start != 0)
+ && Character.isUnicodeIdentifierPart(document
+ .getChar(start - 1)))
+ start--;
+
+ if ((start != 0)
+ && (Character.isUnicodeIdentifierStart(document
+ .getChar(start - 1)) || (document
+ .getChar(start - 1) == '$')))
+ start--;
+
+ return start;
+
+ } else {
+
+ int start = getCompletionOffset();
+ int end = getCompletionOffset() + getCompletionLength();
+
+ while (start != 0
+ && Character.isUnicodeIdentifierPart(document
+ .getChar(start - 1)))
+ start--;
+ if ((start != 0)
+ && (Character.isUnicodeIdentifierStart(document
+ .getChar(start - 1)) || (document
+ .getChar(start - 1) == '$')))
+ start--;
+ while (start != end
+ && Character.isWhitespace(document.getChar(start)))
+ start++;
+
+ if (start == end)
+ start = getCompletionOffset();
+
+ return start;
+ }
+
+ } catch (BadLocationException e) {
+ return super.getStart();
+ }
+ }
+
+ /*
+ * @see net.sourceforge.phpdt.internal.corext.template.DocumentTemplateContext#getEnd()
+ */
+ public int getEnd() {
+
+ if (getCompletionLength() == 0)
+ return super.getEnd();
+
+ try {
+ IDocument document = getDocument();
+
+ int start = getCompletionOffset();
+ int end = getCompletionOffset() + getCompletionLength();
+
+ while (start != end
+ && Character.isWhitespace(document.getChar(end - 1)))
+ end--;
+
+ return end;
+
+ } catch (BadLocationException e) {
+ return super.getEnd();
+ }
+ }
+
+ /*
+ * @see net.sourceforge.phpdt.internal.corext.template.DocumentTemplateContext#getKey()
+ */
+ public String getKey() {
+
+ // if (getCompletionLength() == 0) {
+ // return super.getKey();
+ // }
+
+ try {
+ IDocument document = getDocument();
+
+ int start = getStart();
+ int end = getCompletionOffset();
+ return start <= end ? document.get(start, end - start) : ""; //$NON-NLS-1$
+
+ } catch (BadLocationException e) {
+ return super.getKey();
+ }
+ }
+
+ /**
+ * Returns the character before start position of completion.
+ */
+ public char getCharacterBeforeStart() {
+ int start = getStart();
+
+ try {
+ return start == 0 ? ' ' : getDocument().getChar(start - 1);
+
+ } catch (BadLocationException e) {
+ return ' ';
+ }
+ }
+
+// private static void handleException(Shell shell, Exception e) {
+// String title = JavaTemplateMessages
+// .getString("JavaContext.error.title"); //$NON-NLS-1$
+// if (e instanceof CoreException)
+// ExceptionHandler.handle((CoreException) e, shell, title, null);
+// else if (e instanceof InvocationTargetException)
+// ExceptionHandler.handle((InvocationTargetException) e, shell,
+// title, null);
+// else {
+// PHPeclipsePlugin.log(e);
+// MessageDialog.openError(shell, title, e.getMessage());
+// }
+// }
+
+ // private CompilationUnitCompletion getCompletion() {
+ // ICompilationUnit compilationUnit= getCompilationUnit();
+ // if (fCompletion == null) {
+ // fCompletion= new CompilationUnitCompletion(compilationUnit);
+ //
+ // if (compilationUnit != null) {
+ // try {
+ // compilationUnit.codeComplete(getStart(), fCompletion);
+ // } catch (JavaModelException e) {
+ // // ignore
+ // }
+ // }
+ // }
+ //
+ // return fCompletion;
+ // }
+
+ /**
+ * Returns the name of a guessed local array, <code>null</code> if no
+ * local array exists.
+ */
+ // public String guessArray() {
+ // return firstOrNull(guessArrays());
+ // }
+ /**
+ * Returns the name of a guessed local array, <code>null</code> if no
+ * local array exists.
+ */
+ // public String[] guessArrays() {
+ // CompilationUnitCompletion completion= getCompletion();
+ // LocalVariable[] localArrays= completion.findLocalArrays();
+ //
+ // String[] ret= new String[localArrays.length];
+ // for (int i= 0; i < ret.length; i++) {
+ // ret[ret.length - i - 1]= localArrays[i].name;
+ // }
+ // return ret;
+ // }
+ /**
+ * Returns the name of the type of a local array, <code>null</code> if no
+ * local array exists.
+ */
+ // public String guessArrayType() {
+ // return firstOrNull(guessArrayTypes());
+ // }
+// private String firstOrNull(String[] strings) {
+// if (strings.length > 0)
+// return strings[0];
+// else
+// return null;
+// }
+
+ /**
+ * Returns the name of the type of a local array, <code>null</code> if no
+ * local array exists.
+ */
+ // public String[][] guessGroupedArrayTypes() {
+ // CompilationUnitCompletion completion= getCompletion();
+ // LocalVariable[] localArrays= completion.findLocalArrays();
+ //
+ // String[][] ret= new String[localArrays.length][];
+ //
+ // for (int i= 0; i < localArrays.length; i++) {
+ // String type= getArrayTypeFromLocalArray(completion,
+ // localArrays[localArrays.length - i - 1]);
+ // ret[i]= new String[] {type};
+ // }
+ //
+ // return ret;
+ // }
+ /**
+ * Returns the name of the type of a local array, <code>null</code> if no
+ * local array exists.
+ */
+ // public String[] guessArrayTypes() {
+ // CompilationUnitCompletion completion= getCompletion();
+ // LocalVariable[] localArrays= completion.findLocalArrays();
+ //
+ // List ret= new ArrayList();
+ //
+ // for (int i= 0; i < localArrays.length; i++) {
+ // String type= getArrayTypeFromLocalArray(completion,
+ // localArrays[localArrays.length - i - 1]);
+ // if (!ret.contains(type))
+ // ret.add(type);
+ // }
+ //
+ // return (String[]) ret.toArray(new String[ret.size()]);
+ // }
+// private String getArrayTypeFromLocalArray(
+// CompilationUnitCompletion completion, LocalVariable array) {
+// String arrayTypeName = array.typeName;
+// String typeName = getScalarType(arrayTypeName);
+// int dimension = getArrayDimension(arrayTypeName) - 1;
+// Assert.isTrue(dimension >= 0);
+//
+// String qualifiedName = createQualifiedTypeName(array.typePackageName,
+// typeName);
+// String innerTypeName = completion.simplifyTypeName(qualifiedName);
+//
+// return innerTypeName == null ? createArray(typeName, dimension)
+// : createArray(innerTypeName, dimension);
+// }
+
+// private static String createArray(String type, int dimension) {
+// StringBuffer buffer = new StringBuffer(type);
+// for (int i = 0; i < dimension; i++)
+// buffer.append("[]"); //$NON-NLS-1$
+// return buffer.toString();
+// }
+
+// private static String getScalarType(String type) {
+// return type.substring(0, type.indexOf('['));
+// }
+
+// private static int getArrayDimension(String type) {
+//
+// int dimension = 0;
+// int index = type.indexOf('[');
+//
+// while (index != -1) {
+// dimension++;
+// index = type.indexOf('[', index + 1);
+// }
+//
+// return dimension;
+// }
+
+// private static String createQualifiedTypeName(String packageName,
+// String className) {
+// StringBuffer buffer = new StringBuffer();
+//
+// if (packageName.length() != 0) {
+// buffer.append(packageName);
+// buffer.append('.');
+// }
+// buffer.append(className);
+//
+// return buffer.toString();
+// }
+
+ /**
+ * Returns a proposal for a variable name of a local array element,
+ * <code>null</code> if no local array exists.
+ */
+ // public String guessArrayElement() {
+ // return firstOrNull(guessArrayElements());
+ // }
+ /**
+ * Returns a proposal for a variable name of a local array element,
+ * <code>null</code> if no local array exists.
+ */
+ // public String[] guessArrayElements() {
+ // ICompilationUnit cu= getCompilationUnit();
+ // if (cu == null) {
+ // return new String[0];
+ // }
+ //
+ // CompilationUnitCompletion completion= getCompletion();
+ // LocalVariable[] localArrays= completion.findLocalArrays();
+ //
+ // List ret= new ArrayList();
+ //
+ // for (int i= 0; i < localArrays.length; i++) {
+ // int idx= localArrays.length - i - 1;
+ //
+ // LocalVariable var= localArrays[idx];
+ //
+ // IJavaProject project= cu.getJavaProject();
+ // String typeName= var.typeName;
+ // String baseTypeName= typeName.substring(0, typeName.lastIndexOf('['));
+ //
+ // String indexName= getIndex();
+ // String[] excludedNames= completion.getLocalVariableNames();
+ // if (indexName != null) {
+ // ArrayList excludedNamesList= new ArrayList(Arrays.asList(excludedNames));
+ // excludedNamesList.add(indexName);
+ // excludedNames= (String[])excludedNamesList.toArray(new
+ // String[excludedNamesList.size()]);
+ // }
+ // String[] proposals= NamingConventions.suggestLocalVariableNames(project,
+ // var.typePackageName, baseTypeName, 0, excludedNames);
+ // for (int j= 0; j < proposals.length; j++) {
+ // if (!ret.contains(proposals[j]))
+ // ret.add(proposals[j]);
+ // }
+ // }
+ //
+ // return (String[]) ret.toArray(new String[ret.size()]);
+ // }
+ /**
+ * Returns a proposal for a variable name of a local array element,
+ * <code>null</code> if no local array exists.
+ */
+ // public String[][] guessGroupedArrayElements() {
+ // ICompilationUnit cu= getCompilationUnit();
+ // if (cu == null) {
+ // return new String[0][];
+ // }
+ //
+ // CompilationUnitCompletion completion= getCompletion();
+ // LocalVariable[] localArrays= completion.findLocalArrays();
+ //
+ // String[][] ret= new String[localArrays.length][];
+ //
+ // for (int i= 0; i < localArrays.length; i++) {
+ // int idx= localArrays.length - i - 1;
+ //
+ // LocalVariable var= localArrays[idx];
+ //
+ // IJavaProject project= cu.getJavaProject();
+ // String typeName= var.typeName;
+ // int dim= -1; // we expect at least one array
+ // int lastIndex= typeName.length();
+ // int bracket= typeName.lastIndexOf('[');
+ // while (bracket != -1) {
+ // lastIndex= bracket;
+ // dim++;
+ // bracket= typeName.lastIndexOf('[', bracket - 1);
+ // }
+ // typeName= typeName.substring(0, lastIndex);
+ //
+ // String indexName= getIndex();
+ // String[] excludedNames= completion.getLocalVariableNames();
+ // if (indexName != null) {
+ // ArrayList excludedNamesList= new ArrayList(Arrays.asList(excludedNames));
+ // excludedNamesList.add(indexName);
+ // excludedNames= (String[])excludedNamesList.toArray(new
+ // String[excludedNamesList.size()]);
+ // }
+ // String[] proposals= NamingConventions.suggestLocalVariableNames(project,
+ // var.typePackageName, typeName, dim, excludedNames);
+ //
+ // ret[i]= proposals;
+ // }
+ //
+ // return ret;
+ // }
+ /**
+ * Returns an array index name. 'i', 'j', 'k' are tried until no name
+ * collision with an existing local variable occurs. If all names collide,
+ * <code>null</code> is returned.
+ */
+ // public String getIndex() {
+ // CompilationUnitCompletion completion= getCompletion();
+ // String[] proposals= {"i", "j", "k"}; //$NON-NLS-1$ //$NON-NLS-2$
+ // //$NON-NLS-3$
+ //
+ // for (int i= 0; i != proposals.length; i++) {
+ // String proposal = proposals[i];
+ //
+ // if (!completion.existsLocalName(proposal))
+ // return proposal;
+ // }
+ //
+ // return null;
+ // }
+ /**
+ * Returns the name of a local collection, <code>null</code> if no local
+ * collection exists.
+ */
+ // public String guessCollection() {
+ // return firstOrNull(guessCollections());
+ // }
+ /**
+ * Returns the names of local collections.
+ */
+ // public String[] guessCollections() {
+ // CompilationUnitCompletion completion= getCompletion();
+ // try {
+ // LocalVariable[] localCollections= completion.findLocalCollections();
+ // String[] ret= new String[localCollections.length];
+ // for (int i= 0; i < ret.length; i++) {
+ // ret[ret.length - i - 1]= localCollections[i].name;
+ // }
+ //
+ // return ret;
+ //
+ // } catch (JavaModelException e) {
+ // JavaPlugin.log(e);
+ // }
+ //
+ // return new String[0];
+ // }
+ /**
+ * Returns an iterator name ('iter'). If 'iter' already exists as local
+ * variable, <code>null</code> is returned.
+ */
+ // public String getIterator() {
+ // CompilationUnitCompletion completion= getCompletion();
+ // String[] proposals= {"iter"}; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+ //
+ // for (int i= 0; i != proposals.length; i++) {
+ // String proposal = proposals[i];
+ //
+ // if (!completion.existsLocalName(proposal))
+ // return proposal;
+ // }
+ //
+ // return null;
+ // }
+ // public void addIteratorImport() {
+ // ICompilationUnit cu= getCompilationUnit();
+ // if (cu == null) {
+ // return;
+ // }
+ //
+ // try {
+ // Position position= new Position(getCompletionOffset(),
+ // getCompletionLength());
+ // IDocument document= getDocument();
+ // final String category= "__template_position_importer" +
+ // System.currentTimeMillis(); //$NON-NLS-1$
+ // IPositionUpdater updater= new DefaultPositionUpdater(category);
+ // document.addPositionCategory(category);
+ // document.addPositionUpdater(updater);
+ // document.addPosition(position);
+ //
+ // CodeGenerationSettings settings=
+ // JavaPreferencesSettings.getCodeGenerationSettings();
+ // ImportsStructure structure= new ImportsStructure(cu,
+ // settings.importOrder, settings.importThreshold, true);
+ // structure.addImport("java.util.Iterator"); //$NON-NLS-1$
+ // structure.create(false, null);
+ //
+ // document.removePosition(position);
+ // document.removePositionUpdater(updater);
+ // document.removePositionCategory(category);
+ //
+ // setCompletionOffset(position.getOffset());
+ // setCompletionLength(position.getLength());
+ //
+ // } catch (CoreException e) {
+ // handleException(null, e);
+ // } catch (BadLocationException e) {
+ // handleException(null, e);
+ // } catch (BadPositionCategoryException e) {
+ // handleException(null, e);
+ // }
+ // }
+ /**
+ * Evaluates a 'java' template in thecontext of a compilation unit
+ */
+ public static String evaluateTemplate(Template template,
+ ICompilationUnit compilationUnit, int position)
+ throws CoreException, BadLocationException, TemplateException {
+
+ TemplateContextType contextType = PHPeclipsePlugin.getDefault()
+ .getTemplateContextRegistry().getContextType("java"); //$NON-NLS-1$
+ if (contextType == null)
+ throw new CoreException(
+ new Status(
+ IStatus.ERROR,
+ PHPeclipsePlugin.PLUGIN_ID,
+ IStatus.ERROR,
+ JavaTemplateMessages
+ .getString("JavaContext.error.message"), null)); //$NON-NLS-1$
+
+ IDocument document = new Document();
+ if (compilationUnit != null && compilationUnit.exists())
+ document.set(compilationUnit.getSource());
+
+ JavaContext context = new JavaContext(contextType, document, position,
+ 0, compilationUnit);
+ context.setForceEvaluation(true);
+
+ TemplateBuffer buffer = context.evaluate(template);
+ if (buffer == null)
+ return null;
+ return buffer.getString();
+ }
+
+}
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