private ITypedRegion getPartition(IDocument doc, int offset) throws BadLocationException {
ITypedRegion part =
TextUtilities.getPartition(
doc, IPropertiesFilePartitions.PROPERTIES_FILE_PARTITIONING, offset, true);
if (part.getType() == IDocument.DEFAULT_CONTENT_TYPE
&& part.getLength() == 0
&& offset == doc.getLength()
&& offset > 0) {
// A special case because when cursor at end of document and just after a '=' sign, then we
// get a DEFAULT content type
// with a empty region. We rather would get the non-empty 'Value' partition just before that
// (which has the assignment in it.
char assign = doc.getChar(offset - 1);
if (isAssign(assign)) {
return new TypedRegion(offset - 1, 1, IPropertiesFilePartitions.PROPERTY_VALUE);
} else {
// For a similar case but where there's extra spaces after the '='
ITypedRegion previousPart =
TextUtilities.getPartition(
doc, IPropertiesFilePartitions.PROPERTIES_FILE_PARTITIONING, offset - 1, true);
int previousEnd = previousPart.getOffset() + previousPart.getLength();
if (previousEnd == offset) {
// prefer this over a 0 length partition ending at the same location
return previousPart;
}
}
}
return part;
}
protected static boolean isLineDelimiter(IDocument d, String text) {
String[] delimiters = d.getLegalLineDelimiters();
if (delimiters == null) {
return false;
}
return TextUtilities.equals(delimiters, text) > -1;
}
/* (non-Javadoc)
* @see org.eclipse.jface.text.ITextHover#getHoverInfo(org.eclipse.jface.text.ITextViewer, org.eclipse.jface.text.IRegion)
*/
public String getHoverInfo(ITextViewer textViewer, IRegion hoverRegion) {
ScriptStackFrame frame = getFrame();
if (frame == null) {
return null;
}
IDocument document = textViewer.getDocument();
if (document == null) {
return null;
}
try {
String str =
TextUtilities.getContentType(
document,
IDocumentExtension3.DEFAULT_PARTITIONING,
hoverRegion.getOffset() + 1,
true);
String variableName = document.get(hoverRegion.getOffset(), hoverRegion.getLength());
if (JSPartitionScanner.JS_KEYWORD.equals(str) && !"this".equals(variableName)) // $NON-NLS-1$
{
return null;
}
ScriptValue var = ((ScriptDebugTarget) frame.getDebugTarget()).evaluate(frame, variableName);
if (var != null) {
return getVariableText(var);
}
} catch (BadLocationException e) {
return null;
}
return null;
}
private String normalizeBlockIndentation(ITextSelection selection, String selectedText)
throws Throwable {
String[] lines = selectedText.split("\\n");
if (lines.length < 2) {
return selectedText;
}
String firstLine =
doc.get(
doc.getLineOffset(selection.getStartLine()),
doc.getLineLength(selection.getStartLine()));
String lineDelimiter = TextUtilities.getDefaultLineDelimiter(doc);
String indentation = "";
int bodyIndent = 0;
while (firstLine.startsWith(" ")) {
indentation += " ";
firstLine = firstLine.substring(1);
bodyIndent += 1;
}
if (bodyIndent > 0) {
StringBuffer selectedCode = new StringBuffer();
for (String line : lines) {
if (line.startsWith(indentation)) {
selectedCode.append(line.substring(bodyIndent) + lineDelimiter);
} else {
selectedCode.append(line + lineDelimiter);
}
}
selectedText = selectedCode.toString();
}
return selectedText;
}
protected void appendSpaceBefore(ICSSNode node, String toAppend, StringBuffer source) {
if (node == null || source == null) return;
if (isCleanup() && !getCleanupStrategy(node).isFormatSource())
return; // for not formatting case on cleanup action
Preferences preferences = CSSCorePlugin.getDefault().getPluginPreferences();
if (toAppend != null
&& toAppend.startsWith("{")
&& preferences.getBoolean(
CSSCorePreferenceNames.WRAPPING_NEWLINE_ON_OPEN_BRACE)) { // $NON-NLS-1$
source.append(getLineDelimiter(node));
source.append(getIndent(node));
return;
} else if (
/* ! mgr.isOnePropertyPerLine() && */ preferences.getInt(CSSCorePreferenceNames.LINE_WIDTH) > 0
&& (!preferences.getBoolean(CSSCorePreferenceNames.WRAPPING_PROHIBIT_WRAP_ON_ATTR)
|| node.getOwnerDocument().getNodeType() != ICSSNode.STYLEDECLARATION_NODE)) {
int n = getLastLineLength(node, source);
int append =
(toAppend != null)
? TextUtilities.indexOf(DefaultLineTracker.DELIMITERS, toAppend, 0)[0]
: 0;
if (toAppend != null) append = (append < 0) ? toAppend.length() : append;
if (n + append + 1 > preferences.getInt(CSSCorePreferenceNames.LINE_WIDTH)) {
source.append(getLineDelimiter(node));
source.append(getIndent(node));
source.append(getIndentString());
return;
}
}
source.append(" "); // $NON-NLS-1$
}
/**
* Determines whether each line is prefixed by one of the prefixes.
*
* @param startLine Start line in document
* @param endLine End line in document
* @param prefixes Possible comment prefixes
* @param document The document
* @return <code>true</code> iff each line from <code>startLine</code> to and including <code>
* endLine</code> is prepended by one of the <code>prefixes</code>, ignoring whitespace at the
* begin of line
*/
private boolean isBlockCommented(
int startLine, int endLine, String[] prefixes, IDocument document) {
try {
// check for occurrences of prefixes in the given lines
for (int i = startLine; i <= endLine; i++) {
IRegion line = document.getLineInformation(i);
String text = document.get(line.getOffset(), line.getLength());
int[] found = TextUtilities.indexOf(prefixes, text, 0);
if (found[0] == -1)
// found a line which is not commented
return false;
String s = document.get(line.getOffset(), found[0]);
s = s.trim();
if (s.length() != 0)
// found a line which is not commented
return false;
}
return true;
} catch (BadLocationException x) {
// should not happen
// FIXME Activator.getPlugin().log(x);
}
return false;
}
/**
* Returns the indentation of the line <code>line</code> in <code>document</code>. The returned
* string may contain pairs of leading slashes that are considered part of the indentation. The
* space before the asterix in a javadoc-like comment is not considered part of the indentation.
*
* @param document the document
* @param line the line
* @return the indentation of <code>line</code> in <code>document</code>
* @throws BadLocationException if the document is changed concurrently
*/
private static String getCurrentIndent(IDocument document, int line) throws BadLocationException {
IRegion region = document.getLineInformation(line);
int from = region.getOffset();
int endOffset = region.getOffset() + region.getLength();
// go behind line comments
int to = from;
while (to < endOffset - 2 && document.get(to, 2).equals(SLASHES)) to += 2;
while (to < endOffset) {
char ch = document.getChar(to);
if (!Character.isWhitespace(ch)) break;
to++;
}
// don't count the space before javadoc like, asterix-style comment lines
if (to > from && to < endOffset - 1 && document.get(to - 1, 2).equals(" *")) { // $NON-NLS-1$
String type =
TextUtilities.getContentType(document, IJavaPartitions.JAVA_PARTITIONING, to, true);
if (type.equals(IJavaPartitions.JAVA_DOC)
|| type.equals(IJavaPartitions.JAVA_MULTI_LINE_COMMENT)) to--;
}
return document.get(from, to - from);
}
/**
* Performs the rewrite: The rewrite events are translated to the corresponding in text changes.
* The given options can be null in which case the global options {@link JavaCore#getOptions()
* JavaCore.getOptions()} will be used.
*
* @param document Document which describes the code of the AST that is passed in in the
* constructor. This document is accessed read-only.
* @param options the given options
* @throws IllegalArgumentException if the rewrite fails
* @return Returns the edit describing the text changes.
*/
public TextEdit rewriteAST(IDocument document, Map options) {
TextEdit result = new MultiTextEdit();
final CompilationUnit rootNode = getRootNode();
if (rootNode != null) {
TargetSourceRangeComputer xsrComputer =
new TargetSourceRangeComputer() {
/**
* This implementation of {@link TargetSourceRangeComputer#computeSourceRange(ASTNode)}
* is specialized to work in the case of internal AST rewriting, where the original AST
* has been modified from its original form. This means that one cannot trust that the
* root of the given node is the compilation unit.
*/
public SourceRange computeSourceRange(ASTNode node) {
int extendedStartPosition = rootNode.getExtendedStartPosition(node);
int extendedLength = rootNode.getExtendedLength(node);
return new SourceRange(extendedStartPosition, extendedLength);
}
};
char[] content = document.get().toCharArray();
LineInformation lineInfo = LineInformation.create(document);
String lineDelim = TextUtilities.getDefaultLineDelimiter(document);
List comments = rootNode.getCommentList();
// MERGECONFLICT
// AspectJ Extension - use the factory instead of building one directly
// old code:
// ASTRewriteAnalyzer visitor = new ASTRewriteAnalyzer(content, lineInfo, lineDelim, result,
// this.eventStore, this.nodeStore, comments, options, xsrComputer);
// new code:
// ASTVisitor visitor = ASTRewriteAnalyzer.getAnalyzerVisitor(content, lineInfo,
// lineInfoneDelim, result, this.eventStore, this.nodeStore, comments, options, xsrComputer);
// End AspectJ Extension
Map currentOptions = options == null ? JavaCore.getOptions() : options;
// OLD
// ASTRewriteAnalyzer visitor = new ASTRewriteAnalyzer(content, lineInfo, lineDelim, result,
// this.eventStore, this.nodeStore, comments, currentOptions, xsrComputer,
// (RecoveryScannerData)rootNode.getStatementsRecoveryData());
// NEW CAST NEEDED???
ASTRewriteAnalyzer visitor =
(ASTRewriteAnalyzer)
ASTRewriteAnalyzer.getAnalyzerVisitor(
content,
lineInfo,
lineDelim,
result,
this.eventStore,
this.nodeStore,
comments,
currentOptions,
xsrComputer,
(RecoveryScannerData) rootNode.getStatementsRecoveryData());
rootNode.accept(visitor);
}
return result;
}
private void stopRewriteSession(ITextFileBuffer fileBuffer, Object stateData) {
IDocument document = fileBuffer.getDocument();
if (document instanceof IDocumentExtension4) {
IDocumentExtension4 extension = (IDocumentExtension4) document;
extension.stopRewriteSession(fDocumentRewriteSession);
fDocumentRewriteSession = null;
} else if (stateData instanceof Map)
TextUtilities.addDocumentPartitioners(document, (Map) stateData);
}
public void customizeDocumentCommand(IDocument d, DocumentCommand c) {
if (c.length == 0
&& c.text != null
&& TextUtilities.endsWith(d.getLegalLineDelimiters(), c.text) != -1) {
autoIndentAfterNewLine(d, c);
} else if (c.text.equals("\t")) {
c.text = INDENT_STRING;
}
}
/**
* Returns true if the character at the specified offset is a less-than sign, rather than an type
* parameter list open angle bracket.
*
* @param document a document
* @param offset an offset within the document
* @return true if the character at the specified offset is not a type parameter start bracket
* @throws BadLocationException
*/
private boolean isLessThanOperator(IDocument document, int offset) throws BadLocationException {
if (offset < 0) return false;
JavaHeuristicScanner scanner =
new JavaHeuristicScanner(
document,
IJavaPartitions.JAVA_PARTITIONING,
TextUtilities.getContentType(
document, IJavaPartitions.JAVA_PARTITIONING, offset, false));
return !isTypeParameterBracket(offset, document, scanner);
}
private void autoEditAfterNewLine(IDocument document, DocumentCommand command) {
if (command.offset == -1 || document.getLength() == 0) {
return;
}
try {
int p = command.offset == document.getLength() ? command.offset - 1 : command.offset;
IRegion info = document.getLineInformationOfOffset(p);
int start = info.getOffset();
StringBuffer buf = new StringBuffer(command.text);
int end = findEndOfWhiteSpaceAfter(document, start, command.offset);
String lineSpaces = (end > start) ? document.get(start, end - start) : "";
buf.append(lineSpaces);
if (isAfterOpenBrace(document, command.offset - 1, start)) {
buf.append(
IndenterUtil.createWhiteSpace(1, 0, TextUtilities.getDefaultLineDelimiter(document)));
if (isBeforeCloseBrace(document, command.offset, info.getOffset() + info.getLength())) {
command.shiftsCaret = false;
command.caretOffset = command.offset + buf.length();
buf.append(command.text);
buf.append(lineSpaces);
}
command.text = buf.toString();
} else {
int indent = computeIndentCount(document, command.offset);
if (isBeforeCloseBrace(document, command.offset, info.getOffset() + info.getLength())) {
indent--;
}
command.text +=
IndenterUtil.createWhiteSpace(
indent, 0, TextUtilities.getDefaultLineDelimiter(document));
}
} catch (BadLocationException e) {
KotlinLogger.logAndThrow(e);
}
}
private Object startRewriteSession(ITextFileBuffer fileBuffer) {
Object stateData = null;
IDocument document = fileBuffer.getDocument();
if (document instanceof IDocumentExtension4) {
IDocumentExtension4 extension = (IDocumentExtension4) document;
fDocumentRewriteSession = extension.startRewriteSession(getDocumentRewriteSessionType());
} else stateData = TextUtilities.removeDocumentPartitioners(document);
return stateData;
}
@Override
protected int createBackwardBound(final int start) throws BadLocationException {
final IPartitionConstraint matcher = getPartitionConstraint();
assert (!matcher.matches(IDocument.DEFAULT_CONTENT_TYPE));
if (matcher.matches(Rweave.R_DEFAULT_CONTENT_TYPE)) {
final ITypedRegion cat = Rweave.R_TEX_CAT_UTIL.getCat(fDocument, start);
return cat.getOffset();
}
final ITypedRegion partition =
TextUtilities.getPartition(fDocument, getPartitioning(), start, false);
return partition.getOffset();
}
/**
* Checks whether <code>position</code> resides in a default (Java) partition of <code>document
* </code>.
*
* @param document the document being modified
* @param position the position to be checked
* @param partitioning the document partitioning
* @return <code>true</code> if <code>position</code> is in the default partition of <code>
* document</code>, <code>false</code> otherwise
*/
private static boolean isDefaultPartition(IDocument document, int position, String partitioning) {
Assert.isTrue(position >= 0);
Assert.isTrue(position <= document.getLength());
try {
ITypedRegion region = TextUtilities.getPartition(document, partitioning, position, false);
return region.getType().equals(IDocument.DEFAULT_CONTENT_TYPE);
} catch (BadLocationException e) {
}
return false;
}
@Override
protected String resolve(final TemplateContext context) {
String value = super.resolve(context);
final int length = value.length();
if (length > 0 && context instanceof DocumentTemplateContext) {
final char c = value.charAt(length - 1);
if (c != '\n' && c != '\r') {
value +=
TextUtilities.getDefaultLineDelimiter(
((DocumentTemplateContext) context).getDocument());
}
}
return value;
}
private static boolean isInJavadoc(JavaEditor editor) {
ITextSelection selection = getTextSelection(editor);
if (selection == null) return false;
IDocument document = editor.getDocumentProvider().getDocument(editor.getEditorInput());
try {
String contentType =
TextUtilities.getContentType(
document, IJavaPartitions.JAVA_PARTITIONING, selection.getOffset(), true);
return contentType.equals(IJavaPartitions.JAVA_DOC);
} catch (BadLocationException e) {
return false;
}
}
private void AtlStringIndentAfterNewLine(IDocument document, DocumentCommand command)
throws BadLocationException {
ITypedRegion partition =
TextUtilities.getPartition(document, fPartitioning, command.offset, true);
int offset = partition.getOffset();
int length = partition.getLength();
if (command.offset == offset + length && document.getChar(offset + length - 1) == '\'') return;
String indentation = getLineIndentation(document, command.offset);
String delimiter = TextUtilities.getDefaultLineDelimiter(document);
IRegion line = document.getLineInformationOfOffset(offset);
String string = document.get(line.getOffset(), offset - line.getOffset());
if (string.trim().length() != 0) indentation += String.valueOf("\t\t");
IPreferenceStore preferenceStore = AtlUIPlugin.getDefault().getPreferenceStore();
if (isLineDelimiter(document, command.text))
command.text = "\' +" + command.text + indentation + "\'";
else if (command.text.length() > 1
&& preferenceStore.getBoolean(AtlPreferenceConstants.TYPING_ESCAPE_STRINGS))
command.text = getModifiedText(command.text, indentation, delimiter);
}
private ITypedRegion getPartition(IDocument doc, int offset) {
ITypedRegion tr = null;
// not sure why document would ever be null, but put in this
// guard for
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=86069
if (doc != null) {
try {
tr =
TextUtilities.getPartition(
doc, IStructuredPartitioning.DEFAULT_STRUCTURED_PARTITIONING, offset, false);
} catch (BadLocationException e) {
if (DEBUG) Logger.logException("problem getting partition at: " + offset, e); // $NON-NLS-1$
}
}
return tr;
}
/**
* Is the given selection single-line commented?
*
* @param selection Selection to check
* @return <code>true</code> iff all selected lines are commented
*/
private boolean isSelectionCommented(ISelection selection) {
if (!(selection instanceof ITextSelection)) return false;
ITextSelection textSelection = (ITextSelection) selection;
if (textSelection.getStartLine() < 0 || textSelection.getEndLine() < 0) return false;
IDocument document = fViewer.getDocument();
try {
IRegion block = getTextBlockFromSelection(textSelection, document);
ITypedRegion[] regions =
TextUtilities.computePartitioning(
document, fDocumentPartitioning, block.getOffset(), block.getLength(), false);
// int lineCount= 0;
int[] lines = new int[regions.length * 2]; // [startline, endline, startline, endline, ...]
for (int i = 0, j = 0; i < regions.length; i++, j += 2) {
// start line of region
lines[j] = getFirstCompleteLineOfRegion(regions[i], document);
// end line of region
int length = regions[i].getLength();
int offset = regions[i].getOffset() + length;
if (length > 0) offset--;
lines[j + 1] = (lines[j] == -1 ? -1 : document.getLineOfOffset(offset));
// lineCount += lines[j + 1] - lines[j] + 1;
}
// Perform the check
for (int i = 0, j = 0; i < regions.length; i++, j += 2) {
String[] prefixes = fPrefixesMap.get(regions[i].getType());
if (prefixes != null && prefixes.length > 0 && lines[j] >= 0 && lines[j + 1] >= 0)
if (!isBlockCommented(lines[j], lines[j + 1], prefixes, document)) return false;
}
return true;
} catch (BadLocationException x) {
// should not happen
// FIXME Activator.getPlugin().log(x);
}
return false;
}
private void autoEditBeforeCloseBrace(IDocument document, DocumentCommand command) {
if (isNewLineBefore(document, command.offset)) {
try {
int spaceLength =
command.offset - findEndOfWhiteSpaceBefore(document, command.offset - 1, 0) - 1;
command.text =
IndenterUtil.createWhiteSpace(
computeIndentCount(document, command.offset) - 1,
0,
TextUtilities.getDefaultLineDelimiter(document))
+ CLOSING_BRACE_STRING;
command.offset -= spaceLength;
document.replace(command.offset, spaceLength, "");
} catch (BadLocationException e) {
KotlinLogger.logAndThrow(e);
}
}
}
/*
* @see org.eclipse.jdt.internal.ui.text.spelling.SpellingEngine#check(org.eclipse.jface.text.IDocument, org.eclipse.jface.text.IRegion[], org.eclipse.jdt.internal.ui.text.spelling.engine.ISpellChecker, org.eclipse.ui.texteditor.spelling.ISpellingProblemCollector, org.eclipse.core.runtime.IProgressMonitor)
*/
protected void check(
IDocument document,
IRegion[] regions,
ISpellChecker checker,
ISpellingProblemCollector collector,
IProgressMonitor monitor) {
SpellEventListener listener = new SpellEventListener(collector, document);
boolean isIgnoringJavaStrings =
PreferenceConstants.getPreferenceStore()
.getBoolean(PreferenceConstants.SPELLING_IGNORE_JAVA_STRINGS);
try {
for (int i = 0; i < regions.length; i++) {
IRegion region = regions[i];
ITypedRegion[] partitions =
TextUtilities.computePartitioning(
document,
IJavaPartitions.JAVA_PARTITIONING,
region.getOffset(),
region.getLength(),
false);
for (int index = 0; index < partitions.length; index++) {
if (monitor != null && monitor.isCanceled()) return;
if (listener.isProblemsThresholdReached()) return;
ITypedRegion partition = partitions[index];
final String type = partition.getType();
if (isIgnoringJavaStrings && type.equals(IJavaPartitions.JAVA_STRING)) continue;
if (!type.equals(IDocument.DEFAULT_CONTENT_TYPE)
&& !type.equals(IJavaPartitions.JAVA_CHARACTER))
checker.execute(
listener, new SpellCheckIterator(document, partition, checker.getLocale()));
}
}
} catch (BadLocationException x) {
// ignore: the document has been changed in another thread and will be checked again
} catch (AssertionFailedException x) {
// ignore: the document has been changed in another thread and will be checked again
}
}
public void run(IStructuredSelection selection) {
final ModuleCollector collector = new ModuleCollector();
// Add by Oliver. Fill the source model into collector.modules.
initSelectedVjoType(selection, collector);
if (!collector.modules.isEmpty()) {
for (Iterator i = collector.modules.iterator(); i.hasNext(); ) {
final ISourceModule module = (ISourceModule) i.next();
final IResource resource = module.getResource();
if (resource != null && resource.getType() == IResource.FILE && resource.exists()) {
final IScriptProject project = module.getScriptProject();
final IScriptFormatterFactory formatterFactory =
ScriptFormatterManager.getSelected(project);
if (formatterFactory != null) {
try {
final String source = module.getSource();
final Document document = new Document(source);
final String lineDelimiter = TextUtilities.getDefaultLineDelimiter(document);
final Map preferences =
formatterFactory.retrievePreferences(new PreferencesLookupDelegate(project));
final IScriptFormatter formatter =
formatterFactory.createFormatter(lineDelimiter, preferences);
final TextEdit edit = formatter.format(source, 0, source.length(), 0);
if (edit != null) {
edit.apply(document);
final String newSource = document.get();
if (!source.equals(newSource)) {
module.becomeWorkingCopy(null, null);
module.getBuffer().setContents(newSource);
module.commitWorkingCopy(true, null);
}
}
} catch (Exception e) {
DLTKUIPlugin.log(e);
break;
}
}
}
}
}
}
/*
* @see TemplateContext#evaluate(Template template)
*/
@Override
public TemplateBuffer evaluate(Template template) throws BadLocationException, TemplateException {
clear();
if (!canEvaluate(template))
throw new TemplateException(JavaTemplateMessages.Context_error_cannot_evaluate);
TemplateTranslator translator =
new TemplateTranslator() {
@Override
protected TemplateVariable createVariable(
TemplateVariableType type, String name, int[] offsets) {
// TemplateVariableResolver resolver= getContextType().getResolver(type.getName());
// return resolver.createVariable();
MultiVariable variable = new JavaVariable(type, name, offsets);
fVariables.put(name, variable);
return variable;
}
};
TemplateBuffer buffer = translator.translate(template);
getContextType().resolve(buffer, this);
rewriteImports();
IPreferenceStore prefs = JavaPlugin.getDefault().getPreferenceStore();
boolean useCodeFormatter = prefs.getBoolean(PreferenceConstants.TEMPLATES_USE_CODEFORMATTER);
IJavaProject project = getJavaProject();
JavaFormatter formatter =
new JavaFormatter(
TextUtilities.getDefaultLineDelimiter(getDocument()),
getIndentation(),
useCodeFormatter,
project);
formatter.format(buffer, this);
clear();
return buffer;
}
@Override
protected void addEdits(IDocument document, TextEdit rootEdit) throws CoreException {
try {
String lineDelimiter = TextUtilities.getDefaultLineDelimiter(document);
final IJavaProject project = getCompilationUnit().getJavaProject();
IRegion region = document.getLineInformationOfOffset(fInsertPosition);
String lineContent = document.get(region.getOffset(), region.getLength());
String indentString = Strings.getIndentString(lineContent, project);
String str = Strings.changeIndent(fComment, 0, project, indentString, lineDelimiter);
InsertEdit edit = new InsertEdit(fInsertPosition, str);
rootEdit.addChild(edit);
if (fComment.charAt(fComment.length() - 1) != '\n') {
rootEdit.addChild(new InsertEdit(fInsertPosition, lineDelimiter));
rootEdit.addChild(new InsertEdit(fInsertPosition, indentString));
}
} catch (BadLocationException e) {
throw new CoreException(JavaUIStatus.createError(IStatus.ERROR, e));
}
}
/**
* Override a DocumentCommand if it ends with a line delim (CR) to include space characters for
* autoindentation
*
* @param d the document
* @param c the command
*/
@Override
public void customizeDocumentCommand(final IDocument d, final DocumentCommand c) {
if (c.length == 0 && c.text != null) {
if (TextUtilities.endsWith(d.getLegalLineDelimiters(), c.text) != -1) {
autoIndentAfterNewLine(d, c);
} else if (c.text.endsWith(",")) {
autoIndentAfterNewLine(d, c);
} else if (c.text.endsWith(";")) {
autoIndentAfterNewLine(d, c);
} else if (c.text.endsWith(".")) {
autoIndentAfterNewLine(d, c);
} else if (c.text.endsWith(">")) {
try {
if (c.offset > 0 && c.offset <= d.getLength() && d.getChar(c.offset - 1) == '-') {
autoIndentAfterNewLine(d, c);
}
} catch (final BadLocationException e) {
// never mind...
}
}
}
}
@Override
public void customizeDocumentCommand(final IDocument d, final DocumentCommand c) {
if (TextUtilities.endsWith(d.getLegalLineDelimiters(), c.text) != -1) {
// Start autoindentation after a cabal section (e.g., global, executable, library)
try {
IRegion r = d.getLineInformation(d.getLineOfOffset(c.offset));
String s = d.get(r.getOffset(), r.getLength()).toLowerCase();
for (String section : CabalSyntax.sections.keySet()) {
if (s.equals(section) || s.startsWith(section + " ")) { // $NON-NLS-1$
char[] ch = new char[getTabWidth()];
Arrays.fill(ch, ' ');
c.text = c.text + new String(ch);
}
}
} catch (BadLocationException ble) {
// ignore
}
} else {
// Superclass takes care of autoindentation
super.customizeDocumentCommand(d, c);
}
}
/**
* Tries to make a text hover focusable (or "sticky").
*
* @param sourceViewer the source viewer to display the hover over
* @param textHover the hover to make focusable
* @return <code>true</code> if successful, <code>false</code> otherwise
*/
@SuppressWarnings("deprecation")
private boolean makeTextHoverFocusable(ISourceViewer sourceViewer, ITextHover textHover) {
Point hoverEventLocation = ((ITextViewerExtension2) sourceViewer).getHoverEventLocation();
int offset =
computeOffsetAtLocation(sourceViewer, hoverEventLocation.x, hoverEventLocation.y);
if (offset == -1) return false;
try {
IRegion hoverRegion = textHover.getHoverRegion(sourceViewer, offset);
if (hoverRegion == null) return false;
String hoverInfo = textHover.getHoverInfo(sourceViewer, hoverRegion);
IInformationControlCreator controlCreator = null;
if (textHover instanceof IInformationProviderExtension2)
controlCreator =
((IInformationProviderExtension2) textHover).getInformationPresenterControlCreator();
IInformationProvider informationProvider =
new InformationProvider(hoverRegion, hoverInfo, controlCreator);
fInformationPresenter.setOffset(offset);
fInformationPresenter.setAnchor(AbstractInformationControlManager.ANCHOR_BOTTOM);
fInformationPresenter.setMargins(
6, 6); // default values from AbstractInformationControlManager
String contentType =
TextUtilities.getContentType(
sourceViewer.getDocument(), AutoconfPartitionScanner.AUTOCONF_MACRO, offset, true);
fInformationPresenter.setInformationProvider(informationProvider, contentType);
fInformationPresenter.showInformation();
return true;
} catch (BadLocationException e) {
return false;
}
}
/**
* Returns the partition type located at offset in the document
*
* @param document - assumes document is not null
* @param offset
* @return String partition type
*/
protected String getPartitionType(IDocument document, int offset) {
String type = null;
try {
// TODO: provide partitioning information so we're not using a default like this
if (document instanceof IStructuredDocument) {
type =
TextUtilities.getContentType(
document, IStructuredPartitioning.DEFAULT_STRUCTURED_PARTITIONING, offset, false);
}
} catch (BadLocationException e1) {
} finally {
if (type == null) {
try {
ITypedRegion region = document.getPartition(offset);
if (region != null) {
type = region.getType();
}
} catch (BadLocationException e) {
type = null;
}
}
}
return type;
}
/**
* Returns a segmentation of the line of the given document appropriate for Bidi rendering.
*
* @param document the document
* @param baseLevel the base level of the line
* @param lineStart the offset of the line
* @param lineText Text of the line to retrieve Bidi segments for
* @return the line's Bidi segmentation
* @throws BadLocationException in case lineOffset is not valid in document
*/
protected static int[] getBidiLineSegments(
IDocument document, int baseLevel, int lineStart, String lineText)
throws BadLocationException {
if (lineText == null || document == null) return null;
int lineLength = lineText.length();
if (lineLength <= 2) return null;
// Have ICU compute embedding levels. Consume these levels to reduce
// the Bidi impact, by creating selective segments (preceding
// character runs with a level mismatching the base level).
// XXX: Alternatively, we could apply TextLayout. Pros would be full
// synchronization with the underlying StyledText's (i.e. native) Bidi
// implementation. Cons are performance penalty because of
// unavailability of such methods as isLeftToRight and getLevels.
Bidi bidi = new Bidi(lineText, baseLevel);
if (bidi.isLeftToRight())
// Bail out if this is not Bidi text.
return null;
IRegion line = document.getLineInformationOfOffset(lineStart);
ITypedRegion[] linePartitioning =
TextUtilities.computePartitioning(
document, IJavaPartitions.JAVA_PARTITIONING, lineStart, line.getLength(), false);
if (linePartitioning == null || linePartitioning.length < 1) return null;
int segmentIndex = 1;
int[] segments = new int[lineLength + 1];
byte[] levels = bidi.getLevels();
int nPartitions = linePartitioning.length;
for (int partitionIndex = 0; partitionIndex < nPartitions; partitionIndex++) {
ITypedRegion partition = linePartitioning[partitionIndex];
int lineOffset = partition.getOffset() - lineStart;
// Assert.isTrue(lineOffset >= 0 && lineOffset < lineLength);
if (lineOffset > 0
&& isMismatchingLevel(levels[lineOffset], baseLevel)
&& isMismatchingLevel(levels[lineOffset - 1], baseLevel)) {
// Indicate a Bidi segment at the partition start - provided
// levels of both character at the current offset and its
// preceding character mismatch the base paragraph level.
// Partition end will be covered either by the start of the next
// partition, a delimiter inside a next partition, or end of line.
segments[segmentIndex++] = lineOffset;
}
if (IDocument.DEFAULT_CONTENT_TYPE.equals(partition.getType())) {
int partitionEnd = Math.min(lineLength, lineOffset + partition.getLength());
while (++lineOffset < partitionEnd) {
if (isMismatchingLevel(levels[lineOffset], baseLevel)
&& String.valueOf(lineText.charAt(lineOffset)).matches(BIDI_DELIMITERS)) {
// For default content types, indicate a segment before
// a delimiting character with a mismatching embedding
// level.
segments[segmentIndex++] = lineOffset;
}
}
}
}
if (segmentIndex <= 1) return null;
segments[0] = 0;
if (segments[segmentIndex - 1] != lineLength) segments[segmentIndex++] = lineLength;
if (segmentIndex == segments.length) return segments;
int[] newSegments = new int[segmentIndex];
System.arraycopy(segments, 0, newSegments, 0, segmentIndex);
return newSegments;
}