@Override
public void customizeDocumentCommand(IDocument d, DocumentCommand c) {
try {
if ("-".equals(c.text) && c.offset >= 3 && d.get(c.offset - 3, 3).equals("<!-")) {
c.text = "- -->";
c.shiftsCaret = false;
c.caretOffset = c.offset + 2;
c.doit = false;
return;
}
if ("[".equals(c.text) && c.offset >= 2 && d.get(c.offset - 2, 2).equals("<!")) {
c.text = "[CDATA[]]>";
c.shiftsCaret = false;
c.caretOffset = c.offset + 7;
c.doit = false;
return;
}
if ("l".equals(c.text) && c.offset >= 4 && d.get(c.offset - 4, 4).equals("<?xm")) {
c.text = "l version = \"1.0\" encoding = \"" + charset + "\"?>";
return;
}
} catch (BadLocationException e) {
HTMLPlugin.logException(e);
}
super.customizeDocumentCommand(d, c);
}
@Override
public void customizeDocumentCommand(IDocument d, DocumentCommand c) {
try {
// if("%".equals(c.text) && c.offset > 0){
// if(d.getChar(c.offset - 1) == '<'){
// c.text = "% %>";
// c.shiftsCaret = false;
// c.caretOffset = c.offset + 1;
// c.doit = false;
// return;
// }
// }
if ("{".equals(c.text) && c.offset > 0) {
if (d.getChar(c.offset - 1) == '$') {
c.text = "{}";
c.shiftsCaret = false;
c.caretOffset = c.offset + 1;
c.doit = false;
return;
}
}
if ("-".equals(c.text) && c.offset >= 3 && d.get(c.offset - 3, 3).equals("<%-")) {
c.text = "- --%>";
c.shiftsCaret = false;
c.caretOffset = c.offset + 2;
c.doit = false;
return;
}
} catch (BadLocationException e) {
HTMLPlugin.logException(e);
}
super.customizeDocumentCommand(d, c);
}
private void fixIndentOfCurrentLine() throws BadLocationException {
int start = getStartOfCurrentLine();
int end = getEndOfCurrentLine();
int endOfWs = firstEndOfWhitespace(start, end);
// we want this to happen in three cases:
// 1. the user types a tab in the whitespace
// at the start of the line
// 2. the user types { or ( at the start of
// the line
// 3. Correct Indentation is calling us
// test for Correct Indentation action
boolean correctingIndentation = command.offset == start && !command.shiftsCaret;
boolean opening = command.text.equals("{") || command.text.equals("(");
if (command.offset < endOfWs
|| // we want strictly < since we don't want to prevent the caret advancing when a space is
// typed
command.offset == endOfWs && endOfWs == end && opening
|| // this can cause the caret to jump *backwards* when a { or ( is typed!
correctingIndentation) {
int endOfPrev = getEndOfPreviousLine();
int startOfPrev = getStartOfPreviousLine();
char startOfCurrentLineChar =
opening
? command.text.charAt(0)
: // the typed character is now the first character in the line
getNextNonHiddenCharacterInLine(start);
char endOfLastLineChar = getPreviousNonHiddenCharacterInLine(endOfPrev);
StringBuilder buf = new StringBuilder();
appendIndent(
start,
end,
startOfPrev,
endOfPrev,
startOfCurrentLineChar,
endOfLastLineChar,
false,
buf);
int len = endOfWs - start;
String text = buf.toString();
if (text.length() != len || !document.get(start, len).equals(text)) {
if (opening) {
text += command.text;
}
command.text = text;
command.offset = start;
command.length = len;
} else if (!opening) {
command.caretOffset = start + len;
command.shiftsCaret = false;
command.text = null;
}
}
}
public void customizeDocumentCommand() {
// Note that Correct Indentation sends us a tab
// character at the start of each line of selected
// text. This is amazingly sucky because it's very
// difficult to distinguish Correct Indentation from
// an actual typed tab.
// Note also that typed tabs are replaced with spaces
// before this method is called if the spacesfortabs
// setting is enabled.
if (command.text != null) {
// command.length>0 means we are replacing or deleting text
if (command.length == 0) {
if (command.text.isEmpty()) {
// workaround for a really annoying bug where we
// get sent "" instead of "\t" or " " by IMP
// reconstruct what we would have been sent
// without the bug
if (getIndentWithSpaces()) {
int overhang = getPrefix().length() % getIndentSpaces();
command.text = getDefaultIndent().substring(overhang);
} else {
command.text = "\t";
}
smartIndentOnKeypress();
} else if (isLineEnding(command.text)) {
// a typed newline (might have length 1 or 2,
// depending on the platform)
smartIndentAfterNewline();
} else if (command.text.length() == 1
||
// when spacesfortabs is enabled, we get
// sent spaces instead of a tab - the right
// number of spaces to take us to the next
// tab stop
getIndentWithSpaces() && isIndent(getPrefix())) {
// anything that might represent a single
// keypress or a Correct Indentation
smartIndentOnKeypress();
}
}
if (command.text != null && command.text.length() == 1 && command.length == 0) {
closeOpening();
}
}
}
private void smartIndentAfterClosingBracket(IDocument d, DocumentCommand c) {
if (c.offset == -1 || d.getLength() == 0) return;
try {
int p = (c.offset == d.getLength() ? c.offset - 1 : c.offset);
int line = d.getLineOfOffset(p);
int start = d.getLineOffset(line);
int whiteend = findEndOfWhiteSpace(d, start, c.offset);
JavaHeuristicScanner scanner = new JavaHeuristicScanner(d);
JavaIndenter indenter = new JavaIndenter(d, scanner, fProject);
// shift only when line does not contain any text up to the closing bracket
if (whiteend == c.offset) {
// evaluate the line with the opening bracket that matches out closing bracket
int reference = indenter.findReferencePosition(c.offset, false, true, false, false);
int indLine = d.getLineOfOffset(reference);
if (indLine != -1 && indLine != line) {
// take the indent of the found line
StringBuffer replaceText = new StringBuffer(getIndentOfLine(d, indLine));
// add the rest of the current line including the just added close bracket
replaceText.append(d.get(whiteend, c.offset - whiteend));
replaceText.append(c.text);
// modify document command
c.length += c.offset - start;
c.offset = start;
c.text = replaceText.toString();
}
}
} catch (BadLocationException e) {
JavaPlugin.log(e);
}
}
protected void copyIndentation(final IDocument d, final DocumentCommand c) {
// CODE KOPIERT AUS SUPER-KLASSE DA DORT PRIVATE
// == DefaultIndentLineAutoEditStrategy.autoIndentAfterNewLine(IDocument d, DocumentCommand c)
if (c.offset == -1 || d.getLength() == 0) return;
try {
// find start of line
int p = (c.offset == d.getLength() ? c.offset - 1 : c.offset);
IRegion info = d.getLineInformationOfOffset(p);
int start = info.getOffset();
// find white spaces
int end = findEndOfWhiteSpace(d, start, c.offset);
StringBuffer buf = new StringBuffer(c.text);
if (end > start) {
// append to input
buf.append(d.get(start, end - start));
}
c.text = buf.toString();
} catch (BadLocationException excp) {
// stop work
}
}
@Test
public void testBacketHandling() {
IDocument document = new Document();
document.set(input.replace(CURSOR, ""));
DocumentCommand command = new DocumentCommandStub();
command.text = textToInsert;
// insert text at cursor position
command.offset = input.indexOf(CURSOR);
// position cursor at correct position in input text
command.caretOffset = input.indexOf(CURSOR);
command.shiftsCaret = true;
stategy.customizeDocumentCommand(document, command);
System.out.println("text = '" + command.text + "'");
String expectedDocumentAfter = expected.replace(CURSOR, "");
System.out.println("Cursor before " + command.caretOffset);
executeCommand(document, command);
System.out.println("Cursor after " + command.caretOffset);
String documentAfter = document.get();
System.out.println("Document after: '" + documentAfter + "'");
assertEquals(expectedDocumentAfter, documentAfter);
int expectedCursorOffset = expected.indexOf(CURSOR);
assertEquals("Cursor at unexpected position", expectedCursorOffset, command.caretOffset);
}
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;
}
}
@Test
public void indentShouldNotBeAdded_whenPreviousLineDoesNotStartFromIndent() {
document.set("xyz");
command.offset = 3;
command.text = "\n";
strategy.customizeDocumentCommand(document, command);
assertThat(command.text).isEqualTo("\n");
}
@Test
public void indentFromPreviousLineShouldBeAdded() {
document.set(" abc");
command.offset = 7;
command.text = "\n";
strategy.customizeDocumentCommand(document, command);
assertThat(command.text).isEqualTo("\n ");
}
@Test
public void commandShouldNotBeChanged_whenItIsNotLineBreak() {
document.set("x");
command.offset = 1;
command.text = "q";
strategy.customizeDocumentCommand(document, command);
assertThat(command.text).isEqualTo("q");
}
private void indentNewLine() throws BadLocationException {
int stringIndent = getStringOrCommentIndent(command.offset);
int start = getStartOfCurrentLine();
if (stringIndent >= 0) {
// we're in a string or multiline comment
StringBuilder sb = new StringBuilder();
for (int i = 0; i < stringIndent; i++) {
char ws = document.getChar(start + i) == '\t' ? '\t' : ' ';
sb.append(ws);
}
command.text = command.text + sb.toString() + getRelativeIndent(command.offset);
} else {
char endOfLastLineChar = getPreviousNonHiddenCharacterInLine(command.offset);
char startOfNewLineChar = getNextNonHiddenCharacterInNewline(command.offset);
StringBuilder buf = new StringBuilder(command.text);
IPreferenceStore store = getPreferences();
boolean closeBrace = store == null || store.getBoolean(CLOSE_BRACES);
int end = getEndOfCurrentLine();
appendIndent(
command.offset,
end,
start,
command.offset,
startOfNewLineChar,
endOfLastLineChar,
closeBrace,
buf);
if (buf.length() > 2) {
char ch = buf.charAt(buf.length() - 1);
if (ch == '}' || ch == ')') {
String hanging =
document.get(
command.offset, end - command.offset); // stuff after the { on the current line
buf.insert(command.caretOffset - command.offset, hanging);
command.length = hanging.length();
}
}
command.text = buf.toString();
}
closeUnterminatedMultlineComment();
}
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);
}
}
protected void indentAfterNewLine(final IDocument d, final DocumentCommand c)
throws BadLocationException {
final int offset = c.offset;
String txt = null;
editor.reconcileNow();
final IErlElement element = editor.getElementAt(offset, false);
final IErlMember member = (IErlMember) element;
if (member != null) {
final int start = member.getSourceRange().getOffset();
if (offset >= start) {
txt = d.get(start, offset - start);
}
}
if (txt == null) {
txt = "";
}
final int lineN = d.getLineOfOffset(offset);
final int lineOffset = d.getLineOffset(lineN);
final int lineLength = d.getLineLength(lineN);
final String oldLine = d.get(offset, lineLength + lineOffset - offset);
try {
final IRpcSite b = BackendCore.getBackendManager().getIdeBackend().getRpcSite();
final int tabw = getTabWidthFromPreferences();
final Map<String, String> prefs = new TreeMap<String, String>();
IndentationPreferencePage.addKeysAndPrefs(prefs);
SmartTypingPreferencePage.addAutoNLKeysAndPrefs(prefs);
final boolean useTabs = getUseTabsFromPreferences();
final IndentResult res =
ErlideIndent.indentLine(b, oldLine, txt, c.text, tabw, useTabs, prefs);
if (res.isAddNewLine()) {
c.text += "\n";
}
c.text += res.getText();
c.length += res.getRemoveNext();
} catch (final Exception e) {
ErlLogger.warn(e);
}
}
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 void closeUnterminatedMultlineComment() {
if (isInUnterminatedMultilineComment(command.offset, document)) {
command.shiftsCaret = false;
String text = command.text;
command.caretOffset = command.offset + text.length();
command.text =
text
+ text
+
// uncomment to get a bigger indent
// (text.indexOf(' ')>=0 ?
// text.replaceFirst(" ", "") : text) +
"*/";
}
}
/**
* Indent the new line the same way as the current line.
*
* @param doc the document to indent in
* @param command the document command to customize
* @throws BadLocationException if the offsets are invalid
*/
private void copyPreviousLineIndentation(IDocument doc, DocumentCommand command)
throws BadLocationException {
if (command.offset == -1 || doc.getLength() == 0) {
return;
}
int lineStart = findLineStart(doc, command.offset);
int textStart = findTextStart(doc, lineStart, command.offset);
StringBuilder sb = new StringBuilder(command.text);
if (textStart > lineStart) {
sb.append(doc.get(lineStart, textStart - lineStart));
}
command.text = sb.toString();
}
private void handleSmartTrigger(IDocument document, char trigger, int referenceOffset)
throws BadLocationException {
DocumentCommand cmd = new DocumentCommand() {};
cmd.offset = referenceOffset;
cmd.length = 0;
cmd.text = Character.toString(trigger);
cmd.doit = true;
cmd.shiftsCaret = true;
cmd.caretOffset = getReplacementOffset() + getCursorPosition();
SmartSemicolonAutoEditStrategy strategy =
new SmartSemicolonAutoEditStrategy(DartPartitions.DART_PARTITIONING);
strategy.customizeDocumentCommand(document, cmd);
replace(document, cmd.offset, cmd.length, cmd.text);
setCursorPosition(cmd.caretOffset - getReplacementOffset() + cmd.text.length());
}
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);
}
}
}
/**
* Set the indent of a bracket based on the command provided in the supplied document.
*
* @param document - the document being parsed
* @param command - the command being performed
*/
protected void smartInsertAfterBracket(final IDocument document, final DocumentCommand command) {
if (command.offset == -1 || document.getLength() == 0) {
return;
}
try {
int p = (command.offset == document.getLength() ? command.offset - 1 : command.offset);
int line = document.getLineOfOffset(p);
int start = document.getLineOffset(line);
int whiteend = findEndOfWhiteSpace(document, start, command.offset);
// shift only when line does not contain any text up to
// the closing
// bracket
if (whiteend == command.offset) {
// evaluate the line with the opening bracket
// that matches out
// closing bracket
int indLine = findMatchingOpenBracket(document, command.offset);
if (indLine != -1 && indLine != line) {
// take the indent of the found line
StringBuffer replaceText = new StringBuffer(getIndentOfLine(document, indLine, command));
// add the rest of the current line
// including the just added
// close bracket
// replaceText.append(document.get(whiteend,
// command.offset
// - whiteend));
replaceText.append(command.text);
// modify document command
command.length = command.offset - start;
command.offset = start;
command.text = replaceText.toString();
}
}
} catch (BadLocationException e) {
ErrorReporter.logExceptionStackTrace(e);
}
}
/**
* Adds two spaces to the indentation of the previous line.
*
* @param d the document to work on
* @param c the command to deal with
*/
private void autoIndentAfterNewLine(IDocument d, DocumentCommand c) {
if (c.offset == -1 || d.getLength() == 0) return;
try {
String lastPartitionType = null;
if (d instanceof IDocumentExtension3) {
IDocumentExtension3 id3 = (IDocumentExtension3) d;
lastPartitionType =
id3.getDocumentPartitioner(SassEditor.SASS_PARTITIONING).getContentType(c.offset - 1);
}
// find start of line
int p = (c.offset == d.getLength() ? c.offset - 1 : c.offset);
IRegion info = d.getLineInformationOfOffset(p);
int start = info.getOffset();
// find white spaces
int end = findEndOfWhiteSpace(d, start, c.offset);
// indent if we just finished an element
StringBuffer buf = new StringBuffer(c.text);
if (lastPartitionType != null
&& (lastPartitionType.equalsIgnoreCase(SassPartitionScanner.SASS_CLASS)
|| lastPartitionType.equalsIgnoreCase(SassPartitionScanner.SASS_ID))) {
buf.append(" ");
}
if (end > start) {
// append to input
buf.append(d.get(start, end - start));
}
c.text = buf.toString();
} catch (BadLocationException excp) {
// stop work
}
}
private void fixIndentOfStringOrCommentContinuation() throws BadLocationException {
int endOfWs = firstEndOfWhitespace(command.offset, getEndOfCurrentLine());
if (endOfWs < 0) return;
CommonToken tokenContainingOffset = getTokenStrictlyContainingOffset(command.offset);
CommonToken token = getStartOfStringToken(tokenContainingOffset);
int pos = command.offset - getStartOfCurrentLine();
int tokenIndent = token.getCharPositionInLine();
if (pos > tokenIndent) return;
StringBuilder indent = new StringBuilder();
int startOfTokenLine = document.getLineOffset(token.getLine() - 1);
String prefix = document.get(startOfTokenLine + pos, tokenIndent - pos);
for (int i = 0; i < prefix.length(); i++) {
char ch = prefix.charAt(i);
indent.append(ch == '\t' ? '\t' : ' ');
}
indent.append(getExtraIndent(token));
indent.append(getRelativeIndent(command.offset));
if (indent.length() > 0) {
command.length = endOfWs - command.offset;
command.text = indent.toString();
}
}
@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);
}
}
private void smartIndentAfterOpeningBracket(IDocument d, DocumentCommand c) {
if (c.offset < 1 || d.getLength() == 0) return;
JavaHeuristicScanner scanner = new JavaHeuristicScanner(d);
int p = (c.offset == d.getLength() ? c.offset - 1 : c.offset);
try {
// current line
int line = d.getLineOfOffset(p);
int lineOffset = d.getLineOffset(line);
// make sure we don't have any leading comments etc.
if (d.get(lineOffset, p - lineOffset).trim().length() != 0) return;
// line of last Java code
int pos = scanner.findNonWhitespaceBackward(p, JavaHeuristicScanner.UNBOUND);
if (pos == -1) return;
int lastLine = d.getLineOfOffset(pos);
// only shift if the last java line is further up and is a braceless block candidate
if (lastLine < line) {
JavaIndenter indenter = new JavaIndenter(d, scanner, fProject);
StringBuffer indent = indenter.computeIndentation(p, true);
String toDelete = d.get(lineOffset, c.offset - lineOffset);
if (indent != null && !indent.toString().equals(toDelete)) {
c.text = indent.append(c.text).toString();
c.length += c.offset - lineOffset;
c.offset = lineOffset;
}
}
} catch (BadLocationException e) {
JavaPlugin.log(e);
}
}
private void smartPaste(IDocument document, DocumentCommand command) {
int newOffset = command.offset;
int newLength = command.length;
String newText = command.text;
try {
JavaHeuristicScanner scanner = new JavaHeuristicScanner(document);
JavaIndenter indenter = new JavaIndenter(document, scanner, fProject);
int offset = newOffset;
// reference position to get the indent from
int refOffset = indenter.findReferencePosition(offset);
if (refOffset == JavaHeuristicScanner.NOT_FOUND) return;
int peerOffset = getPeerPosition(document, command);
peerOffset = indenter.findReferencePosition(peerOffset);
if (peerOffset != JavaHeuristicScanner.NOT_FOUND) refOffset = Math.min(refOffset, peerOffset);
// eat any WS before the insertion to the beginning of the line
int firstLine =
1; // don't format the first line per default, as it has other content before it
IRegion line = document.getLineInformationOfOffset(offset);
String notSelected = document.get(line.getOffset(), offset - line.getOffset());
if (notSelected.trim().length() == 0) {
newLength += notSelected.length();
newOffset = line.getOffset();
firstLine = 0;
}
// prefix: the part we need for formatting but won't paste
IRegion refLine = document.getLineInformationOfOffset(refOffset);
String prefix = document.get(refLine.getOffset(), newOffset - refLine.getOffset());
// handle the indentation computation inside a temporary document
Document temp = new Document(prefix + newText);
DocumentRewriteSession session =
temp.startRewriteSession(DocumentRewriteSessionType.STRICTLY_SEQUENTIAL);
scanner = new JavaHeuristicScanner(temp);
indenter = new JavaIndenter(temp, scanner, fProject);
installJavaStuff(temp);
// indent the first and second line
// compute the relative indentation difference from the second line
// (as the first might be partially selected) and use the value to
// indent all other lines.
boolean isIndentDetected = false;
StringBuffer addition = new StringBuffer();
int insertLength = 0;
int firstLineInsertLength = 0;
int firstLineIndent = 0;
int first = document.computeNumberOfLines(prefix) + firstLine; // don't format first line
int lines = temp.getNumberOfLines();
int tabLength = getVisualTabLengthPreference();
boolean changed = false;
for (int l = first;
l < lines;
l++) { // we don't change the number of lines while adding indents
IRegion r = temp.getLineInformation(l);
int lineOffset = r.getOffset();
int lineLength = r.getLength();
if (lineLength == 0) // don't modify empty lines
continue;
if (!isIndentDetected) {
// indent the first pasted line
String current = getCurrentIndent(temp, l);
StringBuffer correct = indenter.computeIndentation(lineOffset);
if (correct == null) return; // bail out
insertLength = subtractIndent(correct, current, addition, tabLength);
if (l == first) {
firstLineInsertLength = insertLength;
firstLineIndent = current.length();
}
if (l != first && temp.get(lineOffset, lineLength).trim().length() != 0) {
isIndentDetected = true;
if (firstLineIndent >= current.length()) insertLength = firstLineInsertLength;
if (insertLength == 0) {
// no adjustment needed, bail out
if (firstLine == 0) {
// but we still need to adjust the first line
command.offset = newOffset;
command.length = newLength;
if (changed) break; // still need to get the leading indent of the first line
}
return;
}
} else {
changed = insertLength != 0;
}
}
// relatively indent all pasted lines
if (insertLength > 0) addIndent(temp, l, addition, tabLength);
else if (insertLength < 0) cutIndent(temp, l, -insertLength, tabLength);
}
removeJavaStuff(temp);
temp.stopRewriteSession(session);
newText = temp.get(prefix.length(), temp.getLength() - prefix.length());
command.offset = newOffset;
command.length = newLength;
command.text = newText;
} catch (BadLocationException e) {
JavaPlugin.log(e);
}
}
public void customizeDocumentCommand(IDocument document, DocumentCommand c) {
if (!isSmartInsertMode()) {
return;
}
if (!(document instanceof IStructuredDocument)) {
// This shouldn't happen unless this strategy is used on an invalid document
return;
}
IStructuredDocument doc = (IStructuredDocument) document;
// Handle newlines/indentation
if (c.length == 0
&& c.text != null
&& TextUtilities.endsWith(doc.getLegalLineDelimiters(), c.text) != -1) {
IModelManager modelManager = StructuredModelManager.getModelManager();
IStructuredModel model = modelManager.getModelForRead(doc);
if (model != null) {
try {
final int offset = c.offset;
int lineStart = findLineStart(doc, offset);
int textStart = findTextStart(doc, lineStart, offset);
IStructuredDocumentRegion region = doc.getRegionAtCharacterOffset(textStart);
if (region != null && region.getType().equals(XML_TAG_NAME)) {
Pair<Integer, Integer> balance = getBalance(doc, textStart, offset);
int tagBalance = balance.getFirst();
int bracketBalance = balance.getSecond();
String lineIndent = ""; // $NON-NLS-1$
if (textStart > lineStart) {
lineIndent = doc.get(lineStart, textStart - lineStart);
}
// We only care if tag or bracket balance is greater than 0;
// we never *dedent* on negative balances
boolean addIndent = false;
if (bracketBalance < 0) {
// Handle
// <foo
// ></foo>^
// and
// <foo
// />^
ITextRegion left = getRegionAt(doc, offset, true /*biasLeft*/);
if (left != null
&& (left.getType().equals(XML_TAG_CLOSE)
|| left.getType().equals(XML_EMPTY_TAG_CLOSE))) {
// Find the corresponding open tag...
// The org.eclipse.wst.xml.ui.gotoMatchingTag frequently
// doesn't work, it just says "No matching brace found"
// (or I would use that here).
int targetBalance = 0;
ITextRegion right = getRegionAt(doc, offset, false /*biasLeft*/);
if (right != null && right.getType().equals(XML_END_TAG_OPEN)) {
targetBalance = -1;
}
int openTag =
AndroidXmlCharacterMatcher.findTagBackwards(doc, offset, targetBalance);
if (openTag != -1) {
// Look up the indentation of the given line
lineIndent = AndroidXmlEditor.getIndentAtOffset(doc, openTag);
}
}
} else if (tagBalance > 0 || bracketBalance > 0) {
// Add indentation
addIndent = true;
}
StringBuilder sb = new StringBuilder(c.text);
sb.append(lineIndent);
String oneIndentUnit = XmlFormatPreferences.create().getOneIndentUnit();
if (addIndent) {
sb.append(oneIndentUnit);
}
// Handle
// <foo>^</foo>
// turning into
// <foo>
// ^
// </foo>
ITextRegion left = getRegionAt(doc, offset, true /*biasLeft*/);
ITextRegion right = getRegionAt(doc, offset, false /*biasLeft*/);
if (left != null
&& right != null
&& left.getType().equals(XML_TAG_CLOSE)
&& right.getType().equals(XML_END_TAG_OPEN)) {
// Move end tag
if (tagBalance > 0 && bracketBalance < 0) {
sb.append(oneIndentUnit);
}
c.caretOffset = offset + sb.length();
c.shiftsCaret = false;
sb.append(TextUtilities.getDefaultLineDelimiter(doc));
sb.append(lineIndent);
}
c.text = sb.toString();
} else if (region != null && region.getType().equals(XML_CONTENT)) {
// Indenting in text content. If you're in the middle of editing
// text, just copy the current line indentation.
// However, if you're editing in leading whitespace (e.g. you press
// newline on a blank line following say an element) then figure
// out the indentation as if the newline had been pressed at the
// end of the element, and insert that amount of indentation.
// In this case we need to also make sure to subtract any existing
// whitespace on the current line such that if we have
//
// <foo>
// ^ <bar/>
// </foo>
//
// you end up with
//
// <foo>
//
// ^<bar/>
// </foo>
//
String text = region.getText();
int regionStart = region.getStartOffset();
int delta = offset - regionStart;
boolean inWhitespacePrefix = true;
for (int i = 0, n = Math.min(delta, text.length()); i < n; i++) {
char ch = text.charAt(i);
if (!Character.isWhitespace(ch)) {
inWhitespacePrefix = false;
break;
}
}
if (inWhitespacePrefix) {
IStructuredDocumentRegion previous = region.getPrevious();
if (previous != null && previous.getType() == XML_TAG_NAME) {
ITextRegionList subRegions = previous.getRegions();
ITextRegion last = subRegions.get(subRegions.size() - 1);
if (last.getType() == XML_TAG_CLOSE || last.getType() == XML_EMPTY_TAG_CLOSE) {
int begin =
AndroidXmlCharacterMatcher.findTagBackwards(
doc, previous.getStartOffset() + last.getStart(), 0);
int prevLineStart = findLineStart(doc, begin);
int prevTextStart = findTextStart(doc, prevLineStart, begin);
String lineIndent = ""; // $NON-NLS-1$
if (prevTextStart > prevLineStart) {
lineIndent = doc.get(prevLineStart, prevTextStart - prevLineStart);
}
StringBuilder sb = new StringBuilder(c.text);
sb.append(lineIndent);
String oneIndentUnit = XmlFormatPreferences.create().getOneIndentUnit();
// See if there is whitespace on the insert line that
// we should also remove
for (int i = delta, n = text.length(); i < n; i++) {
char ch = text.charAt(i);
if (ch == ' ') {
c.length++;
} else {
break;
}
}
boolean onClosingTagLine = false;
if (text.indexOf('\n', delta) == -1) {
IStructuredDocumentRegion next = region.getNext();
if (next != null && next.getType() == XML_TAG_NAME) {
String nextType = next.getRegions().get(0).getType();
if (nextType == XML_END_TAG_OPEN) {
onClosingTagLine = true;
}
}
}
boolean addIndent = (last.getType() == XML_TAG_CLOSE) && !onClosingTagLine;
if (addIndent) {
sb.append(oneIndentUnit);
}
c.text = sb.toString();
return;
}
}
}
copyPreviousLineIndentation(doc, c);
} else {
copyPreviousLineIndentation(doc, c);
}
} catch (BadLocationException e) {
AdtPlugin.log(e, null);
} finally {
model.releaseFromRead();
}
}
}
}
private void smartIndentUponE(IDocument d, DocumentCommand c) {
if (c.offset < 4 || d.getLength() == 0) return;
try {
String content = d.get(c.offset - 3, 3);
if (content.equals("els")) { // $NON-NLS-1$
JavaHeuristicScanner scanner = new JavaHeuristicScanner(d);
int p = c.offset - 3;
// current line
int line = d.getLineOfOffset(p);
int lineOffset = d.getLineOffset(line);
// make sure we don't have any leading comments etc.
if (d.get(lineOffset, p - lineOffset).trim().length() != 0) return;
// line of last Java code
int pos = scanner.findNonWhitespaceBackward(p - 1, JavaHeuristicScanner.UNBOUND);
if (pos == -1) return;
int lastLine = d.getLineOfOffset(pos);
// only shift if the last java line is further up and is a braceless block candidate
if (lastLine < line) {
JavaIndenter indenter = new JavaIndenter(d, scanner, fProject);
int ref = indenter.findReferencePosition(p, true, false, false, false);
if (ref == JavaHeuristicScanner.NOT_FOUND) return;
int refLine = d.getLineOfOffset(ref);
String indent = getIndentOfLine(d, refLine);
if (indent != null) {
c.text = indent.toString() + "else"; // $NON-NLS-1$
c.length += c.offset - lineOffset;
c.offset = lineOffset;
}
}
return;
}
if (content.equals("cas")) { // $NON-NLS-1$
JavaHeuristicScanner scanner = new JavaHeuristicScanner(d);
int p = c.offset - 3;
// current line
int line = d.getLineOfOffset(p);
int lineOffset = d.getLineOffset(line);
// make sure we don't have any leading comments etc.
if (d.get(lineOffset, p - lineOffset).trim().length() != 0) return;
// line of last Java code
int pos = scanner.findNonWhitespaceBackward(p - 1, JavaHeuristicScanner.UNBOUND);
if (pos == -1) return;
int lastLine = d.getLineOfOffset(pos);
// only shift if the last java line is further up and is a braceless block candidate
if (lastLine < line) {
JavaIndenter indenter = new JavaIndenter(d, scanner, fProject);
int ref = indenter.findReferencePosition(p, false, false, false, true);
if (ref == JavaHeuristicScanner.NOT_FOUND) return;
int refLine = d.getLineOfOffset(ref);
int nextToken = scanner.nextToken(ref, JavaHeuristicScanner.UNBOUND);
String indent;
if (nextToken == Symbols.TokenCASE || nextToken == Symbols.TokenDEFAULT)
indent = getIndentOfLine(d, refLine);
else // at the brace of the switch
indent = indenter.computeIndentation(p).toString();
if (indent != null) {
c.text = indent.toString() + "case"; // $NON-NLS-1$
c.length += c.offset - lineOffset;
c.offset = lineOffset;
}
}
return;
}
} catch (BadLocationException e) {
JavaPlugin.log(e);
}
}
private void closeOpening() {
if (isCommented(command.offset)) {
return;
}
boolean quoted = isQuoted(command.offset);
String current = command.text;
try {
// don't close fences after a backslash escape
// TODO: improve this, check the surrounding
// token type!
if (command.offset > 0 && document.getChar(command.offset - 1) == '\\') {
return;
}
// don't close fences before an identifier,
// literal or opening paren
if (!quoted
&&
// there are special rules for < below
!current.equals("<")) {
int curr = command.offset;
while (curr < document.getLength()) {
char ch = document.getChar(curr++);
if (isLetter(ch) || isDigit(ch) || ch == '(') {
return;
}
if (ch == '"' && !"\"".equals(current) && !"`".equals(current)) {
return;
}
if (ch == '\'' && !"\'".equals(current)) {
return;
}
if (ch != ' ') {
break;
}
}
}
} catch (BadLocationException e) {
}
String opening = null;
String closing = null;
boolean found = false;
IPreferenceStore store = getPreferences();
for (String[] type : FENCES) {
if (type[0].equals(current) || type[1].equals(current)) {
if (store == null || store.getBoolean(type[2])) {
opening = type[0];
closing = type[1];
found = true;
break;
}
}
}
if (found) {
if (current.equals(closing)) {
// typed character is a closing fence
try {
// skip one ahead if next char is already a closing fence
if (skipClosingFence(closing) && closeOpeningFence(opening, closing)) {
command.text = null;
command.shiftsCaret = false;
command.caretOffset = command.offset + 1;
return;
}
} catch (BadLocationException e) {
}
}
boolean isInterpolation = isGraveAccentCharacterInStringLiteral(command.offset, opening);
boolean isDocLink = isOpeningBracketInAnnotationStringLiteral(command.offset, opening);
if (current.equals(opening) && (isInterpolation || isDocLink || !quoted)) {
// typed character is an opening fence
if (isInterpolation || isDocLink || closeOpeningFence(opening, closing)) {
// add a closing fence
command.shiftsCaret = false;
command.caretOffset = command.offset + 1;
if (isInterpolation) {
try {
if (command.offset > 1
&& document.get(command.offset - 1, 1).equals("`")
&& !document.get(command.offset - 2, 1).equals("`")) {
command.text += "``";
}
} catch (BadLocationException e) {
}
} else if (isDocLink) {
try {
if (command.offset > 1
&& document.get(command.offset - 1, 1).equals("[")
&& !document.get(command.offset - 2, 1).equals("]")) {
command.text += "]]";
}
} catch (BadLocationException e) {
}
} else if (opening.equals("\"")) {
try {
if (command.offset <= 1 || !document.get(command.offset - 1, 1).equals("\"")) {
command.text += closing;
} else if (command.offset > 1
&& document.get(command.offset - 2, 2).equals("\"\"")
&& !(command.offset > 2 && document.get(command.offset - 3, 1).equals("\""))) {
command.text += "\"\"\"";
}
} catch (BadLocationException e) {
}
} else {
command.text += closing;
}
}
}
}
}
/**
* Copies the indentation of the previous line.
*
* @param d the document to work on
* @param c the command to deal with
*/
protected void autoIndentAfterNewLine(IDocument d, DocumentCommand c) {
c.text += getAutoIndentAfterNewLine(d, c);
}
private void smartIndentAfterNewLine(IDocument d, DocumentCommand c) {
JavaHeuristicScanner scanner = new JavaHeuristicScanner(d);
JavaIndenter indenter = new JavaIndenter(d, scanner, fProject);
StringBuffer indent = indenter.computeIndentation(c.offset);
if (indent == null) indent = new StringBuffer();
int docLength = d.getLength();
if (c.offset == -1 || docLength == 0) return;
try {
int p = (c.offset == docLength ? c.offset - 1 : c.offset);
int line = d.getLineOfOffset(p);
StringBuffer buf = new StringBuffer(c.text + indent);
IRegion reg = d.getLineInformation(line);
int lineEnd = reg.getOffset() + reg.getLength();
int contentStart = findEndOfWhiteSpace(d, c.offset, lineEnd);
c.length = Math.max(contentStart - c.offset, 0);
int start = reg.getOffset();
ITypedRegion region = TextUtilities.getPartition(d, fPartitioning, start, true);
if (IJavaPartitions.JAVA_DOC.equals(region.getType()))
start = d.getLineInformationOfOffset(region.getOffset()).getOffset();
// insert closing brace on new line after an unclosed opening brace
if (getBracketCount(d, start, c.offset, true) > 0
&& closeBrace()
&& !isClosed(d, c.offset, c.length)) {
c.caretOffset = c.offset + buf.length();
c.shiftsCaret = false;
// copy old content of line behind insertion point to new line
// unless we think we are inserting an anonymous type definition
if (c.offset == 0
|| computeAnonymousPosition(d, c.offset - 1, fPartitioning, lineEnd) == -1) {
if (lineEnd - contentStart > 0) {
c.length = lineEnd - c.offset;
buf.append(d.get(contentStart, lineEnd - contentStart).toCharArray());
}
}
buf.append(TextUtilities.getDefaultLineDelimiter(d));
StringBuffer reference = null;
int nonWS = findEndOfWhiteSpace(d, start, lineEnd);
if (nonWS < c.offset && d.getChar(nonWS) == '{')
reference = new StringBuffer(d.get(start, nonWS - start));
else reference = indenter.getReferenceIndentation(c.offset);
if (reference != null) buf.append(reference);
buf.append('}');
}
// insert extra line upon new line between two braces
else if (c.offset > start && contentStart < lineEnd && d.getChar(contentStart) == '}') {
int firstCharPos = scanner.findNonWhitespaceBackward(c.offset - 1, start);
if (firstCharPos != JavaHeuristicScanner.NOT_FOUND && d.getChar(firstCharPos) == '{') {
c.caretOffset = c.offset + buf.length();
c.shiftsCaret = false;
StringBuffer reference = null;
int nonWS = findEndOfWhiteSpace(d, start, lineEnd);
if (nonWS < c.offset && d.getChar(nonWS) == '{')
reference = new StringBuffer(d.get(start, nonWS - start));
else reference = indenter.getReferenceIndentation(c.offset);
buf.append(TextUtilities.getDefaultLineDelimiter(d));
if (reference != null) buf.append(reference);
}
}
c.text = buf.toString();
} catch (BadLocationException e) {
JavaPlugin.log(e);
}
}