/**
* Emulates pressing <code>Enter</code> at current caret position.
*
* @param editor target editor
* @param project target project
* @param shifts two-elements array which is expected to be filled with the following info: 1. The
* first element holds added lines number; 2. The second element holds added symbols number;
*/
private static void emulateEnter(
@NotNull final Editor editor, @NotNull Project project, int[] shifts) {
final DataContext dataContext = prepareContext(editor.getComponent(), project);
int caretOffset = editor.getCaretModel().getOffset();
Document document = editor.getDocument();
SelectionModel selectionModel = editor.getSelectionModel();
int startSelectionOffset = 0;
int endSelectionOffset = 0;
boolean restoreSelection = selectionModel.hasSelection();
if (restoreSelection) {
startSelectionOffset = selectionModel.getSelectionStart();
endSelectionOffset = selectionModel.getSelectionEnd();
selectionModel.removeSelection();
}
int textLengthBeforeWrap = document.getTextLength();
int lineCountBeforeWrap = document.getLineCount();
DataManager.getInstance()
.saveInDataContext(dataContext, WRAP_LONG_LINE_DURING_FORMATTING_IN_PROGRESS_KEY, true);
CommandProcessor commandProcessor = CommandProcessor.getInstance();
try {
Runnable command =
new Runnable() {
@Override
public void run() {
EditorActionManager.getInstance()
.getActionHandler(IdeActions.ACTION_EDITOR_ENTER)
.execute(editor, dataContext);
}
};
if (commandProcessor.getCurrentCommand() == null) {
commandProcessor.executeCommand(editor.getProject(), command, WRAP_LINE_COMMAND_NAME, null);
} else {
command.run();
}
} finally {
DataManager.getInstance()
.saveInDataContext(dataContext, WRAP_LONG_LINE_DURING_FORMATTING_IN_PROGRESS_KEY, null);
}
int symbolsDiff = document.getTextLength() - textLengthBeforeWrap;
if (restoreSelection) {
int newSelectionStart = startSelectionOffset;
int newSelectionEnd = endSelectionOffset;
if (startSelectionOffset >= caretOffset) {
newSelectionStart += symbolsDiff;
}
if (endSelectionOffset >= caretOffset) {
newSelectionEnd += symbolsDiff;
}
selectionModel.setSelection(newSelectionStart, newSelectionEnd);
}
shifts[0] = document.getLineCount() - lineCountBeforeWrap;
shifts[1] = symbolsDiff;
}
