| delete stops working within editor plugin under development [message #1798646] |
Wed, 21 November 2018 23:02  |
 Andrew Williams
Messages: 2
Registered: November 2018 |
Junior Member |
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We are developing a markdown editor plugin for eclipse. When using Windows 10 we encounter a bug that causes keys to stop working. The most common key is delete, other times it is ctrl + s.
Here is the code for the editor extension:
public class MarkdownEditor extends AbstractTextEditor {
private Activator activator;
private MarkdownRenderer markdownRenderer;
private IWebBrowser browser;
public MarkdownEditor() throws FileNotFoundException {
setSourceViewerConfiguration(new TextSourceViewerConfiguration());
setDocumentProvider(new TextFileDocumentProvider());
// Activator manages connections to the Workbench
activator = Activator.getDefault();
markdownRenderer = new MarkdownRenderer();
}
private IFile saveMarkdown(IEditorInput editorInput, IDocument document, IProgressMonitor progressMonitor) {
IProject project = getCurrentProject(editorInput);
String mdFileName = editorInput.getName();
String fileName = mdFileName.substring(0, mdFileName.lastIndexOf('.'));
String htmlFileName = fileName + ".html";
IFile file = project.getFile(htmlFileName);
String markdownString = "<!DOCTYPE html>\n" + "<html>" + "<head>\n" + "<meta charset=\"utf-8\">\n" + "<title>"
+ htmlFileName + "</title>\n" + "</head>" + "<body>" + markdownRenderer.render(document.get())
+ "</body>\n" + "</html>";
try {
if (!project.isOpen())
project.open(progressMonitor);
if (file.exists())
file.delete(true, progressMonitor);
if (!file.exists()) {
byte[] bytes = markdownString.getBytes();
InputStream source = new ByteArrayInputStream(bytes);
file.create(source, IResource.NONE, progressMonitor);
}
} catch (CoreException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return file;
}
private void loadFileInBrowser(IFile file) {
IWorkbench workbench = PlatformUI.getWorkbench();
try {
if (browser == null)
browser = workbench.getBrowserSupport().createBrowser(Activator.PLUGIN_ID);
URL htmlFile = FileLocator.toFileURL(file.getLocationURI().toURL());
browser.openURL(htmlFile);
IWorkbenchPartSite site = this.getSite();
IWorkbenchPart part = site.getPart();
site.getPage().activate(part);
} catch (IOException | PartInitException e) {
e.printStackTrace();
}
}
@Override
public void init(IEditorSite site, IEditorInput editorInput) throws PartInitException {
super.init(site, editorInput);
IDocumentProvider documentProvider = getDocumentProvider();
IDocument document = documentProvider.getDocument(editorInput);
IFile htmlFile = saveMarkdown(editorInput, document, null);
loadFileInBrowser(htmlFile);
}
@Override
public void doSave(IProgressMonitor progressMonitor) {
IDocumentProvider documentProvider = getDocumentProvider();
if (documentProvider == null)
return;
IEditorInput editorInput = getEditorInput();
IDocument document = documentProvider.getDocument(editorInput);
if (documentProvider.isDeleted(getEditorInput())) {
if (isSaveAsAllowed()) {
/*
* 1GEUSSR: ITPUI:ALL - User should never loose changes made in the editors.
* Changed Behavior to make sure that if called inside a regular save (because
* of deletion of input element) there is a way to report back to the caller.
*/
performSaveAs(progressMonitor);
} else {
}
} else {
// Convert document from string to string array with each instance a single line
// of the document
String[] stringArrayOfDocument = document.get().split("\n");
String[] formattedLines = PipeTableFormat.preprocess(stringArrayOfDocument);
StringBuilder builder = new StringBuilder();
for (String line : formattedLines) {
builder.append(line);
builder.append("\n");
}
String formattedDocument = builder.toString();
// Calculating the position of the cursor
ISelectionProvider selectionProvider = this.getSelectionProvider();
ISelection selection = selectionProvider.getSelection();
int cursorLength = 0;
if (selection instanceof ITextSelection) {
ITextSelection textSelection = (ITextSelection) selection;
cursorLength = textSelection.getOffset(); // etc.
activator.log(Integer.toString(cursorLength));
}
// This sets the cursor on at the start of the file
document.set(formattedDocument);
// Move the cursor
this.setHighlightRange(cursorLength, 0, true);
IFile htmlFile = saveMarkdown(editorInput, document, progressMonitor);
loadFileInBrowser(htmlFile);
performSave(false, progressMonitor);
}
}
private IProject getCurrentProject(IEditorInput editorInput) {
IProject project = editorInput.getAdapter(IProject.class);
if (project == null) {
IResource resource = editorInput.getAdapter(IResource.class);
if (resource != null) {
project = resource.getProject();
}
}
return project;
}
}
Here is the repository: https://github.com/borisv13/GitHub-Flavored-Markdown-Eclipse-Plugin
Thank you for any help you are able to offer!
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