@Override
public void execute(
final Editor editor,
final DataContext dataContext,
@Nullable final Producer<Transferable> producer) {
if (!CodeInsightUtilBase.prepareEditorForWrite(editor)) return;
final Document document = editor.getDocument();
if (!FileDocumentManager.getInstance()
.requestWriting(document, CommonDataKeys.PROJECT.getData(dataContext))) {
return;
}
DataContext context = dataContext;
if (producer != null) {
context =
new DataContext() {
@Override
public Object getData(@NonNls String dataId) {
return PasteAction.TRANSFERABLE_PROVIDER.is(dataId)
? producer
: dataContext.getData(dataId);
}
};
}
final Project project = editor.getProject();
if (project == null
|| editor.isColumnMode()
|| editor.getSelectionModel().hasBlockSelection()
|| editor.getCaretModel().getCaretCount() > 1) {
if (myOriginalHandler != null) {
myOriginalHandler.execute(editor, context);
}
return;
}
final PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(document);
if (file == null) {
if (myOriginalHandler != null) {
myOriginalHandler.execute(editor, context);
}
return;
}
document.startGuardedBlockChecking();
try {
for (PasteProvider provider : Extensions.getExtensions(EP_NAME)) {
if (provider.isPasteEnabled(context)) {
provider.performPaste(context);
return;
}
}
doPaste(editor, project, file, document, producer);
} catch (ReadOnlyFragmentModificationException e) {
EditorActionManager.getInstance().getReadonlyFragmentModificationHandler(document).handle(e);
} finally {
document.stopGuardedBlockChecking();
}
}
@Override
public boolean doEnter(Editor editor, PsiElement psiElement, boolean isModified) {
PsiCodeBlock block = getControlStatementBlock(editor.getCaretModel().getOffset(), psiElement);
if (processExistingBlankLine(editor, block, psiElement)) {
return true;
}
EditorActionHandler enterHandler = getEnterHandler(IdeActions.ACTION_EDITOR_START_NEW_LINE);
if (block != null) {
PsiElement firstElement = block.getFirstBodyElement();
if (firstElement == null) {
firstElement = block.getRBrace();
// Plain enter processor inserts enter after the end of line, hence, we don't want to use it
// here because the line ends with
// the empty braces block. So, we get the following in case of default handler usage:
// Before:
// if (condition[caret]) {}
// After:
// if (condition) {}
// [caret]
enterHandler = getEnterHandler(IdeActions.ACTION_EDITOR_ENTER);
}
editor
.getCaretModel()
.moveToOffset(
firstElement != null
? firstElement.getTextRange().getStartOffset()
: block.getTextRange().getEndOffset());
}
enterHandler.execute(editor, ((EditorEx) editor).getDataContext());
return true;
}
private void performAction(
final String fileName, final EditorActionHandler handler, final String afterFileName)
throws Exception {
configureByFile(fileName);
final boolean enabled = handler.isEnabled(myEditor, null);
assertEquals(
"not enabled for " + afterFileName,
new File(getTestDataPath(), afterFileName).exists(),
enabled);
if (enabled) {
handler.execute(myEditor, null);
checkResultByFile(afterFileName);
}
}
@Override
public void execute(Editor editor, Caret caret, DataContext dataContext) {
LookupImpl lookup = (LookupImpl) LookupManager.getActiveLookup(editor);
if (lookup == null
|| !lookup.isAvailableToUser()
|| myRequireFocusedLookup && !lookup.isFocused()) {
Project project = editor.getProject();
if (project != null) {
LookupManager.getInstance(project).hideActiveLookup();
}
myOriginalHandler.executeInCaretContext(editor, caret, dataContext);
return;
}
lookup.markSelectionTouched();
executeInLookup(lookup, dataContext, caret);
}
public static void performTypingAction(Editor editor, char c) {
EditorActionManager actionManager = EditorActionManager.getInstance();
if (c == BACKSPACE_FAKE_CHAR) {
EditorActionHandler actionHandler =
actionManager.getActionHandler(IdeActions.ACTION_EDITOR_BACKSPACE);
actionHandler.execute(editor, DataManager.getInstance().getDataContext());
} else if (c == SMART_ENTER_FAKE_CHAR) {
EditorActionHandler actionHandler =
actionManager.getActionHandler(IdeActions.ACTION_EDITOR_COMPLETE_STATEMENT);
actionHandler.execute(editor, DataManager.getInstance().getDataContext());
} else if (c == '\n') {
EditorActionHandler actionHandler =
actionManager.getActionHandler(IdeActions.ACTION_EDITOR_ENTER);
actionHandler.execute(editor, DataManager.getInstance().getDataContext());
} else {
TypedAction action = actionManager.getTypedAction();
action.actionPerformed(editor, c, DataManager.getInstance().getDataContext());
}
}
protected boolean handleBackspace(
Editor editor, Caret caret, DataContext dataContext, boolean toWordStart) {
Project project = CommonDataKeys.PROJECT.getData(dataContext);
if (project == null) return false;
PsiFile file = PsiUtilBase.getPsiFileInEditor(editor, project);
if (file == null) return false;
if (editor.getSelectionModel().hasSelection()) return false;
int offset = editor.getCaretModel().getOffset() - 1;
if (offset < 0) return false;
CharSequence chars = editor.getDocument().getCharsSequence();
char c = chars.charAt(offset);
final Editor injectedEditor =
TypedHandler.injectedEditorIfCharTypedIsSignificant(c, editor, file);
final Editor originalEditor = editor;
if (injectedEditor != editor) {
int injectedOffset = injectedEditor.getCaretModel().getOffset();
if (isOffsetInsideInjected(injectedEditor, injectedOffset)) {
file = PsiDocumentManager.getInstance(project).getPsiFile(injectedEditor.getDocument());
editor = injectedEditor;
offset = injectedOffset - 1;
}
}
final BackspaceHandlerDelegate[] delegates =
Extensions.getExtensions(BackspaceHandlerDelegate.EP_NAME);
if (!toWordStart) {
for (BackspaceHandlerDelegate delegate : delegates) {
delegate.beforeCharDeleted(c, file, editor);
}
}
FileType fileType = file.getFileType();
final QuoteHandler quoteHandler = TypedHandler.getQuoteHandler(file, editor);
HighlighterIterator hiterator = ((EditorEx) editor).getHighlighter().createIterator(offset);
boolean wasClosingQuote =
quoteHandler != null && quoteHandler.isClosingQuote(hiterator, offset);
myOriginalHandler.execute(originalEditor, caret, dataContext);
if (!toWordStart) {
for (BackspaceHandlerDelegate delegate : delegates) {
if (delegate.charDeleted(c, file, editor)) {
return true;
}
}
}
if (offset >= editor.getDocument().getTextLength()) return true;
chars = editor.getDocument().getCharsSequence();
if ((c == '(' || c == '[' || c == '{')
&& CodeInsightSettings.getInstance().AUTOINSERT_PAIR_BRACKET) {
char c1 = chars.charAt(offset);
if (c1 != getRightChar(c)) return true;
HighlighterIterator iterator = ((EditorEx) editor).getHighlighter().createIterator(offset);
BraceMatcher braceMatcher = BraceMatchingUtil.getBraceMatcher(fileType, iterator);
if (!braceMatcher.isLBraceToken(iterator, chars, fileType)
&& !braceMatcher.isRBraceToken(iterator, chars, fileType)) {
return true;
}
int rparenOffset =
BraceMatchingUtil.findRightmostRParen(iterator, iterator.getTokenType(), chars, fileType);
if (rparenOffset >= 0) {
iterator = ((EditorEx) editor).getHighlighter().createIterator(rparenOffset);
boolean matched = BraceMatchingUtil.matchBrace(chars, fileType, iterator, false);
if (matched) return true;
}
editor.getDocument().deleteString(offset, offset + 1);
} else if ((c == '"' || c == '\'' || c == '`')
&& CodeInsightSettings.getInstance().AUTOINSERT_PAIR_QUOTE) {
char c1 = chars.charAt(offset);
if (c1 != c) return true;
if (wasClosingQuote) return true;
HighlighterIterator iterator = ((EditorEx) editor).getHighlighter().createIterator(offset);
if (quoteHandler == null || !quoteHandler.isOpeningQuote(iterator, offset)) return true;
editor.getDocument().deleteString(offset, offset + 1);
}
return true;
}
@Override
public void executeWriteAction(Editor editor, Caret caret, DataContext dataContext) {
if (!handleBackspace(editor, caret, dataContext, false)) {
myOriginalHandler.execute(editor, caret, dataContext);
}
}
/**
* There is a possible case that target code block already starts with the empty line:
*
* <pre>
* void test(int i) {
* if (i > 1[caret]) {
*
* }
* }
* </pre>
*
* We want just move caret to correct position at that empty line without creating additional
* empty line then.
*
* @param editor target editor
* @param codeBlock target code block to which new empty line is going to be inserted
* @param element target element under caret
* @return <code>true</code> if it was found out that the given code block starts with the empty
* line and caret is pointed to correct position there, i.e. no additional processing is
* required; <code>false</code> otherwise
*/
private static boolean processExistingBlankLine(
@NotNull Editor editor, @Nullable PsiCodeBlock codeBlock, @Nullable PsiElement element) {
PsiWhiteSpace whiteSpace = null;
if (codeBlock == null) {
if (element != null) {
final PsiElement next = PsiTreeUtil.nextLeaf(element);
if (next instanceof PsiWhiteSpace) {
whiteSpace = (PsiWhiteSpace) next;
}
}
} else {
whiteSpace = PsiTreeUtil.findChildOfType(codeBlock, PsiWhiteSpace.class);
if (whiteSpace == null) {
return false;
}
PsiElement lbraceCandidate = whiteSpace.getPrevSibling();
if (lbraceCandidate == null) {
return false;
}
ASTNode node = lbraceCandidate.getNode();
if (node == null || node.getElementType() != JavaTokenType.LBRACE) {
return false;
}
}
if (whiteSpace == null) {
return false;
}
final TextRange textRange = whiteSpace.getTextRange();
final Document document = editor.getDocument();
final CharSequence whiteSpaceText =
document
.getCharsSequence()
.subSequence(textRange.getStartOffset(), textRange.getEndOffset());
if (StringUtil.countNewLines(whiteSpaceText) < 2) {
return false;
}
int i = CharArrayUtil.shiftForward(whiteSpaceText, 0, " \t");
if (i >= whiteSpaceText.length() - 1) {
assert false
: String.format(
"code block: %s, white space: %s",
codeBlock == null ? "undefined" : codeBlock.getTextRange(),
whiteSpace.getTextRange());
return false;
}
editor.getCaretModel().moveToOffset(i + 1 + textRange.getStartOffset());
EditorActionManager actionManager = EditorActionManager.getInstance();
EditorActionHandler actionHandler =
actionManager.getActionHandler(IdeActions.ACTION_EDITOR_MOVE_LINE_END);
final DataContext dataContext = DataManager.getInstance().getDataContext(editor.getComponent());
if (dataContext == null) {
i = CharArrayUtil.shiftForwardUntil(whiteSpaceText, i, "\n");
if (i >= whiteSpaceText.length()) {
i = whiteSpaceText.length();
}
editor.getCaretModel().moveToOffset(i + textRange.getStartOffset());
} else {
actionHandler.execute(editor, dataContext);
}
return true;
}
@Override
public boolean isEnabled(Editor editor, DataContext dataContext) {
LookupImpl lookup = (LookupImpl) LookupManager.getActiveLookup(editor);
return lookup != null || myOriginalHandler.isEnabled(editor, dataContext);
}
private void executeWriteActionInner(Editor editor, DataContext dataContext, Project project) {
CodeInsightSettings settings = CodeInsightSettings.getInstance();
if (project == null) {
myOriginalHandler.execute(editor, dataContext);
return;
}
final Document document = editor.getDocument();
final PsiFile file = PsiUtilBase.getPsiFileInEditor(editor, project);
if (file == null) {
myOriginalHandler.execute(editor, dataContext);
return;
}
CommandProcessor.getInstance()
.setCurrentCommandName(CodeInsightBundle.message("command.name.typing"));
EditorModificationUtil.deleteSelectedText(editor);
int caretOffset = editor.getCaretModel().getOffset();
CharSequence text = document.getCharsSequence();
int length = document.getTextLength();
if (caretOffset < length && text.charAt(caretOffset) != '\n') {
int offset1 = CharArrayUtil.shiftBackward(text, caretOffset, " \t");
if (offset1 < 0 || text.charAt(offset1) == '\n') {
int offset2 = CharArrayUtil.shiftForward(text, offset1 + 1, " \t");
boolean isEmptyLine = offset2 >= length || text.charAt(offset2) == '\n';
if (!isEmptyLine) { // we are in leading spaces of a non-empty line
myOriginalHandler.execute(editor, dataContext);
return;
}
}
}
final PsiDocumentManager documentManager = PsiDocumentManager.getInstance(project);
documentManager.commitDocument(document);
boolean forceIndent = false;
boolean forceSkipIndent = false;
Ref<Integer> caretOffsetRef = new Ref<Integer>(caretOffset);
Ref<Integer> caretAdvanceRef = new Ref<Integer>(0);
final EnterHandlerDelegate[] delegates = Extensions.getExtensions(EnterHandlerDelegate.EP_NAME);
for (EnterHandlerDelegate delegate : delegates) {
EnterHandlerDelegate.Result result =
delegate.preprocessEnter(
file, editor, caretOffsetRef, caretAdvanceRef, dataContext, myOriginalHandler);
if (caretOffsetRef.get() > document.getTextLength()) {
throw new AssertionError("Wrong caret offset change by " + delegate);
}
if (result == EnterHandlerDelegate.Result.Stop) {
return;
}
if (result != EnterHandlerDelegate.Result.Continue) {
if (result == EnterHandlerDelegate.Result.DefaultForceIndent) {
forceIndent = true;
} else if (result == EnterHandlerDelegate.Result.DefaultSkipIndent) {
forceSkipIndent = true;
}
break;
}
}
text = document.getCharsSequence(); // update after changes done in preprocessEnter()
caretOffset = caretOffsetRef.get().intValue();
boolean isFirstColumn = caretOffset == 0 || text.charAt(caretOffset - 1) == '\n';
final boolean insertSpace =
!isFirstColumn
&& !(caretOffset >= text.length()
|| text.charAt(caretOffset) == ' '
|| text.charAt(caretOffset) == '\t');
editor.getCaretModel().moveToOffset(caretOffset);
myOriginalHandler.execute(editor, dataContext);
if (!editor.isInsertMode() || forceSkipIndent) {
return;
}
if (settings.SMART_INDENT_ON_ENTER || forceIndent) {
caretOffset += 1;
caretOffset =
CharArrayUtil.shiftForward(editor.getDocument().getCharsSequence(), caretOffset, " \t");
} else {
caretOffset = editor.getCaretModel().getOffset();
}
documentManager.commitAllDocuments();
final DoEnterAction action =
new DoEnterAction(
file,
editor,
document,
dataContext,
caretOffset,
!insertSpace,
caretAdvanceRef.get(),
project);
action.setForceIndent(forceIndent);
action.run();
documentManager.commitDocument(document);
for (EnterHandlerDelegate delegate : delegates) {
if (delegate.postProcessEnter(file, editor, dataContext)
== EnterHandlerDelegate.Result.Stop) {
break;
}
}
documentManager.commitDocument(document);
}
@Override
public boolean isEnabled(Editor editor, DataContext dataContext) {
return myOriginalHandler.isEnabled(editor, dataContext);
}
@Override
public boolean isEnabledForCaret(
@NotNull Editor editor, @NotNull Caret caret, DataContext dataContext) {
return myOriginalHandler.isEnabled(editor, caret, dataContext);
}
public static void performPaste(Editor editor) {
EditorActionManager actionManager = EditorActionManager.getInstance();
EditorActionHandler actionHandler =
actionManager.getActionHandler(IdeActions.ACTION_EDITOR_PASTE);
actionHandler.execute(editor, DataManager.getInstance().getDataContext());
}