import org.eclipse.jface.text.IEditingSupportRegistry; //导入依赖的package包/类
/**
 * PopUp gets closed and the focus goes back to the editor. Linked mode stays active and can be reenabled, i.e. by
 * putting the caret back into a linked editing position.
 */
public void linkedModeLeft() {
	if (linkedModeModel != null) {
		linkedModeModel.exit(ILinkedModeListener.NONE);
	}
	if (popup != null) {
		popup.close();
	}

	if (editor != null) {
		ISourceViewer viewer = editor.getInternalSourceViewer();
		if (viewer instanceof IEditingSupportRegistry) {
			IEditingSupportRegistry registry = (IEditingSupportRegistry) viewer;
			registry.unregister(focusEditingSupport);
		}
	}
}
 

import org.eclipse.jface.text.IEditingSupportRegistry; //导入依赖的package包/类
public void documentAboutToBeChanged(DocumentEvent event) {

			// default behavior: any document change outside a linked position
			// causes us to exit
			int end = event.getOffset() + event.getLength();
			for (int offset = event.getOffset(); offset <= end; offset++) {
				if (!fModel.anyPositionContains(offset)) {
					ITextViewer viewer = fCurrentTarget.getViewer();
					if (fFramePosition != null && viewer instanceof IEditingSupportRegistry) {
						IEditingSupport[] helpers = ((IEditingSupportRegistry) viewer).getRegisteredSupports();
						for (int i = 0; i < helpers.length; i++) {
							if (helpers[i].isOriginator(null,
									new Region(fFramePosition.getOffset(), fFramePosition.getLength())))
								return;
						}
					}

					leave(ILinkedModeListener.EXTERNAL_MODIFICATION);
					return;
				}
			}

			// Make sure that any document change is done inside a compound
			// change
			beginCompoundChangeIfNeeded();

		}
 

import org.eclipse.jface.text.IEditingSupportRegistry; //导入依赖的package包/类
public boolean start(IRenameElementContext renameElementContext, IProgressMonitor monitor) {
	if (renameElementContext == null)
		throw new IllegalArgumentException("RenameElementContext is null");
	this.linkedPositionGroup = linkedPositionGroupCalculator.getLinkedPositionGroup(renameElementContext, monitor);
	if (linkedPositionGroup == null || linkedPositionGroup.isEmpty())
		return false;
	this.editor = (XtextEditor) renameElementContext.getTriggeringEditor();
	this.focusEditingSupport = new FocusEditingSupport();
	ISourceViewer viewer = editor.getInternalSourceViewer();
	IDocument document = viewer.getDocument();
	originalSelection = viewer.getSelectedRange();
	currentPosition = linkedPositionGroup.getPositions()[0];
	originalName = getCurrentName();
	try {
		linkedModeModel = new LinkedModeModel();
		linkedModeModel.addGroup(linkedPositionGroup);
		linkedModeModel.forceInstall();
		linkedModeModel.addLinkingListener(new EditorSynchronizer());
		LinkedModeUI ui = new EditorLinkedModeUI(linkedModeModel, viewer);
		ui.setExitPolicy(new ExitPolicy(document));
		if (currentPosition.includes(originalSelection.x))
			ui.setExitPosition(viewer, originalSelection.x, 0, Integer.MAX_VALUE);
		ui.enter();
		if (currentPosition.includes(originalSelection.x)
				&& currentPosition.includes(originalSelection.x + originalSelection.y))
			viewer.setSelectedRange(originalSelection.x, originalSelection.y);
		if (viewer instanceof IEditingSupportRegistry) {
			IEditingSupportRegistry registry = (IEditingSupportRegistry) viewer;
			registry.register(focusEditingSupport);
		}
		openPopup();
		return true;
	} catch (BadLocationException e) {
		throw new WrappedException(e);
	}
}
 

import org.eclipse.jface.text.IEditingSupportRegistry; //导入依赖的package包/类
/**
 * Hides this popup.
 */
public void hide()
{
	bufferString = "";
	selectedProposal = null;
	fLastKeyPressed = '\0';
	unregister();

	if (fViewer instanceof IEditingSupportRegistry)
	{
		IEditingSupportRegistry registry = (IEditingSupportRegistry) fViewer;
		registry.unregister(fFocusHelper);
	}

	if (Helper.okToUse(fProposalShell))
	{
		fContentAssistant.removeContentAssistListener(this, ContentAssistant.PROPOSAL_SELECTOR);
		// TISTUD-913: moved the 'fPopupCloser.uninstall();' to disposePopup()
		if (fAdditionalInfoController != null)
		{
			fAdditionalInfoController.disposeInformationControl();
		}

		if (Helper.okToUse(fProposalTable))
		{
			fProposalTable.removeAll();
			fProposalTable.update();
		}
                       // TISTUD-1550: Call to dispose, instead of fProposalShell.setVisible(false);
		fProposalShell.setVisible(false);
	}
	}
 

import org.eclipse.jface.text.IEditingSupportRegistry; //导入依赖的package包/类
private void linkedModeLeft() {
	fgActiveLinkedMode= null;
	if (fInfoPopup != null) {
		fInfoPopup.close();
	}

	ISourceViewer viewer= fEditor.getViewer();
	if (viewer instanceof IEditingSupportRegistry) {
		IEditingSupportRegistry registry= (IEditingSupportRegistry) viewer;
		registry.unregister(fFocusEditingSupport);
	}
}
 

import org.eclipse.jface.text.IEditingSupportRegistry; //导入依赖的package包/类
private void registerHelper(IEditingSupport helper, JavaEditor editor) {
	ISourceViewer viewer= editor.getViewer();
	if (viewer instanceof IEditingSupportRegistry) {
		IEditingSupportRegistry registry= (IEditingSupportRegistry) viewer;
		registry.register(helper);
	}
}
 

import org.eclipse.jface.text.IEditingSupportRegistry; //导入依赖的package包/类
private void deregisterHelper(IEditingSupport helper, JavaEditor editor) {
	ISourceViewer viewer= editor.getViewer();
	if (viewer instanceof IEditingSupportRegistry) {
		IEditingSupportRegistry registry= (IEditingSupportRegistry) viewer;
		registry.unregister(helper);
	}
}
 

import org.eclipse.jface.text.IEditingSupportRegistry; //导入依赖的package包/类
private void registerHelper(IEditingSupport helper) {
	ISourceViewer viewer= fEditor.getViewer();
	if (viewer instanceof IEditingSupportRegistry) {
		IEditingSupportRegistry registry= (IEditingSupportRegistry) viewer;
		registry.register(helper);
	}
}
 

import org.eclipse.jface.text.IEditingSupportRegistry; //导入依赖的package包/类
private void deregisterHelper(IEditingSupport helper) {
	ISourceViewer viewer= fEditor.getViewer();
	if (viewer instanceof IEditingSupportRegistry) {
		IEditingSupportRegistry registry= (IEditingSupportRegistry) viewer;
		registry.unregister(helper);
	}
}
 

import org.eclipse.jface.text.IEditingSupportRegistry; //导入依赖的package包/类
public void shellDeactivated(ShellEvent e) {
	// TODO re-enable after debugging
	// if (true) return;

	// from LinkedPositionUI:

	// don't deactivate on focus lost, since the proposal popups may
	// take focus
	// plus: it doesn't hurt if you can check with another window
	// without losing linked mode
	// since there is no intrusive popup sticking out.

	// need to check first what happens on reentering based on an open
	// action
	// Seems to be no problem

	// Better:
	// Check with content assistant and only leave if its not the
	// proposal shell that took the
	// focus away.

	StyledText text;
	final ITextViewer viewer;
	Display display;

	if (fCurrentTarget == null || (text = fCurrentTarget.fWidget) == null || text.isDisposed()
			|| (display = text.getDisplay()) == null || display.isDisposed()
			|| (viewer = fCurrentTarget.getViewer()) == null) {
		leave(ILinkedModeListener.EXIT_ALL);
	} else {
		// Post in UI thread since the assistant popup will only get the
		// focus after we lose it.
		display.asyncExec(new Runnable() {
			public void run() {
				if (fIsActive && viewer instanceof IEditingSupportRegistry) {
					IEditingSupport[] helpers = ((IEditingSupportRegistry) viewer).getRegisteredSupports();
					for (int i = 0; i < helpers.length; i++) {
						if (helpers[i].ownsFocusShell())
							return;
					}
				}

				// else
				leave(ILinkedModeListener.EXIT_ALL);

			}
		});
	}
}
 

import org.eclipse.jface.text.IEditingSupportRegistry; //导入依赖的package包/类
public void start() {
	if (getActiveLinkedMode() != null) {
		// for safety; should already be handled in RenameJavaElementAction
		fgActiveLinkedMode.startFullDialog();
		return;
	}

	ISourceViewer viewer = fEditor.getViewer();
	IDocument document = viewer.getDocument();

	ITypeScriptFile tsFile = fEditor.getTypeScriptFile();
	tsFile.setDisableChanged(true);
	fOriginalSelection = viewer.getSelectedRange();
	int offset = fOriginalSelection.x;

	try {
		fLinkedPositionGroup = new LinkedPositionGroup();
		if (viewer instanceof ITextViewerExtension6) {
			IUndoManager undoManager = ((ITextViewerExtension6) viewer).getUndoManager();
			if (undoManager instanceof IUndoManagerExtension) {
				IUndoManagerExtension undoManagerExtension = (IUndoManagerExtension) undoManager;
				IUndoContext undoContext = undoManagerExtension.getUndoContext();
				IOperationHistory operationHistory = OperationHistoryFactory.getOperationHistory();
				fStartingUndoOperation = operationHistory.getUndoOperation(undoContext);
			}
		}

		// Find occurrences
		List<OccurrencesResponseItem> occurrences = tsFile.occurrences(offset).get(1000, TimeUnit.MILLISECONDS);

		// Create Eclipse linked position from the occurrences list.
		int start, length;
		for (int i = 0; i < occurrences.size(); i++) {
			OccurrencesResponseItem item = occurrences.get(i);
			start = tsFile.getPosition(item.getStart());
			length = tsFile.getPosition(item.getEnd()) - start;
			LinkedPosition linkedPosition = new LinkedPosition(document, start, length, i);
			if (i == 0) {
				fOriginalName = document.get(start, length);
				fNamePosition = linkedPosition;
			}
			fLinkedPositionGroup.addPosition(linkedPosition);
		}

		fLinkedModeModel = new LinkedModeModel();
		fLinkedModeModel.addGroup(fLinkedPositionGroup);
		fLinkedModeModel.forceInstall();
		fLinkedModeModel.addLinkingListener(new EditorHighlightingSynchronizer(fEditor));
		fLinkedModeModel.addLinkingListener(new EditorSynchronizer());

		LinkedModeUI ui = new EditorLinkedModeUI(fLinkedModeModel, viewer);
		ui.setExitPosition(viewer, offset, 0, Integer.MAX_VALUE);
		ui.setExitPolicy(new ExitPolicy(document));
		ui.enter();

		viewer.setSelectedRange(fOriginalSelection.x, fOriginalSelection.y); // by
																				// default,
																				// full
																				// word
																				// is
																				// selected;
																				// restore
																				// original
																				// selection

		if (viewer instanceof IEditingSupportRegistry) {
			IEditingSupportRegistry registry = (IEditingSupportRegistry) viewer;
			registry.register(fFocusEditingSupport);
		}

		openSecondaryPopup();
		// startAnimation();
		fgActiveLinkedMode = this;

	} catch (Exception e) {
		JSDTTypeScriptUIPlugin.log(e);
	}
}