@Nullable private static String getStringContent(@Nullable Producer<Transferable> producer) { Transferable content = null; if (producer != null) { content = producer.produce(); } else { CopyPasteManager manager = CopyPasteManager.getInstance(); if (manager.areDataFlavorsAvailable(DataFlavor.stringFlavor)) { content = manager.getContents(); } } if (content == null) return null; RawText raw = RawText.fromTransferable(content); if (raw != null) return raw.rawText; try { return (String) content.getTransferData(DataFlavor.stringFlavor); } catch (UnsupportedFlavorException ignore) { } catch (IOException ignore) { } return null; }
private static void doPaste( final Editor editor, final Project project, final PsiFile file, final Document document, final Producer<Transferable> producer) { Transferable content = null; if (producer != null) { content = producer.produce(); } else { CopyPasteManager manager = CopyPasteManager.getInstance(); if (manager.areDataFlavorsAvailable(DataFlavor.stringFlavor)) { content = manager.getContents(); if (content != null) { manager.stopKillRings(); } } } if (content != null) { String text = null; try { text = (String) content.getTransferData(DataFlavor.stringFlavor); } catch (Exception e) { editor.getComponent().getToolkit().beep(); } if (text == null) return; final CodeInsightSettings settings = CodeInsightSettings.getInstance(); final Map<CopyPastePostProcessor, TextBlockTransferableData> extraData = new HashMap<CopyPastePostProcessor, TextBlockTransferableData>(); for (CopyPastePostProcessor processor : Extensions.getExtensions(CopyPastePostProcessor.EP_NAME)) { TextBlockTransferableData data = processor.extractTransferableData(content); if (data != null) { extraData.put(processor, data); } } text = TextBlockTransferable.convertLineSeparators(text, "\n", extraData.values()); final CaretModel caretModel = editor.getCaretModel(); final SelectionModel selectionModel = editor.getSelectionModel(); final int col = caretModel.getLogicalPosition().column; // There is a possible case that we want to perform paste while there is an active selection // at the editor and caret is located // inside it (e.g. Ctrl+A is pressed while caret is not at the zero column). We want to insert // the text at selection start column // then, hence, inserted block of text should be indented according to the selection start as // well. final int blockIndentAnchorColumn; final int caretOffset = caretModel.getOffset(); if (selectionModel.hasSelection() && caretOffset >= selectionModel.getSelectionStart()) { blockIndentAnchorColumn = editor.offsetToLogicalPosition(selectionModel.getSelectionStart()).column; } else { blockIndentAnchorColumn = col; } // We assume that EditorModificationUtil.insertStringAtCaret() is smart enough to remove // currently selected text (if any). RawText rawText = RawText.fromTransferable(content); String newText = text; for (CopyPastePreProcessor preProcessor : Extensions.getExtensions(CopyPastePreProcessor.EP_NAME)) { newText = preProcessor.preprocessOnPaste(project, file, editor, newText, rawText); } int indentOptions = text.equals(newText) ? settings.REFORMAT_ON_PASTE : CodeInsightSettings.REFORMAT_BLOCK; text = newText; if (LanguageFormatting.INSTANCE.forContext(file) == null && indentOptions != CodeInsightSettings.NO_REFORMAT) { indentOptions = CodeInsightSettings.INDENT_BLOCK; } final String _text = text; ApplicationManager.getApplication() .runWriteAction( new Runnable() { @Override public void run() { EditorModificationUtil.insertStringAtCaret(editor, _text, false, true); } }); int length = text.length(); int offset = caretModel.getOffset() - length; if (offset < 0) { length += offset; offset = 0; } final RangeMarker bounds = document.createRangeMarker(offset, offset + length); caretModel.moveToOffset(bounds.getEndOffset()); editor.getScrollingModel().scrollToCaret(ScrollType.RELATIVE); selectionModel.removeSelection(); final Ref<Boolean> indented = new Ref<Boolean>(Boolean.FALSE); for (Map.Entry<CopyPastePostProcessor, TextBlockTransferableData> e : extraData.entrySet()) { //noinspection unchecked e.getKey() .processTransferableData(project, editor, bounds, caretOffset, indented, e.getValue()); } boolean pastedTextContainsWhiteSpacesOnly = CharArrayUtil.shiftForward(document.getCharsSequence(), bounds.getStartOffset(), " \n\t") >= bounds.getEndOffset(); VirtualFile virtualFile = file.getVirtualFile(); if (!pastedTextContainsWhiteSpacesOnly && (virtualFile == null || !SingleRootFileViewProvider.isTooLargeForIntelligence(virtualFile))) { final int indentOptions1 = indentOptions; ApplicationManager.getApplication() .runWriteAction( new Runnable() { @Override public void run() { switch (indentOptions1) { case CodeInsightSettings.INDENT_BLOCK: if (!indented.get()) { indentBlock( project, editor, bounds.getStartOffset(), bounds.getEndOffset(), blockIndentAnchorColumn); } break; case CodeInsightSettings.INDENT_EACH_LINE: if (!indented.get()) { indentEachLine( project, editor, bounds.getStartOffset(), bounds.getEndOffset()); } break; case CodeInsightSettings.REFORMAT_BLOCK: indentEachLine( project, editor, bounds.getStartOffset(), bounds .getEndOffset()); // this is needed for example when inserting a // comment before method reformatBlock( project, editor, bounds.getStartOffset(), bounds.getEndOffset()); break; } } }); } if (bounds.isValid()) { caretModel.moveToOffset(bounds.getEndOffset()); editor.getScrollingModel().scrollToCaret(ScrollType.RELATIVE); selectionModel.removeSelection(); editor.putUserData(EditorEx.LAST_PASTED_REGION, TextRange.create(bounds)); } } }