private void updateDocumentProvider(IEditorInput input) {
IProgressMonitor rememberedProgressMonitor = null;
IDocumentProvider provider = getDocumentProvider();
if (provider != null) {
provider.removeElementStateListener(fElementStateListener);
if (provider instanceof IDocumentProviderExtension2) {
IDocumentProviderExtension2 extension = (IDocumentProviderExtension2) provider;
rememberedProgressMonitor = extension.getProgressMonitor();
extension.setProgressMonitor(null);
}
}
setDocumentProvider(input);
provider = getDocumentProvider();
if (provider != null) {
provider.addElementStateListener(fElementStateListener);
if (provider instanceof IDocumentProviderExtension2) {
IDocumentProviderExtension2 extension = (IDocumentProviderExtension2) provider;
extension.setProgressMonitor(rememberedProgressMonitor);
}
}
}
/**
* Disposes of the connection with the document provider. Subclasses may extend.
*
* @since 3.0
*/
protected void disposeDocumentProvider() {
IDocumentProvider provider = getDocumentProvider();
if (provider != null) {
IEditorInput input = getEditorInput();
if (input != null) provider.disconnect(input);
if (fElementStateListener != null) {
provider.removeElementStateListener(fElementStateListener);
fElementStateListener = null;
}
}
fImplicitDocumentProvider = null;
}
/*
* @see org.eclipse.ui.texteditor.quickdiff.IQuickDiffReferenceProvider#dispose()
*/
public void dispose() {
IProgressMonitor monitor = fProgressMonitor;
if (monitor != null) {
monitor.setCanceled(true);
}
IDocumentProvider provider = fDocumentProvider;
synchronized (fLock) {
if (provider != null) provider.removeElementStateListener(this);
fEditorInput = null;
fDocumentProvider = null;
fReference = null;
fDocumentRead = false;
fProgressMonitor = null;
fEditor = null;
}
}