Bug 85694 [preferences][navigation] correct editor-specific context menus
I20050215-2300 (m5 test pass) - open the preferences from the context menu in a) the java editor b) the properties file editor -> the java editor does not show the spelling page -> the properties file does not show the properties editor preference page fix is easy: change AbstractDecoratedTextEditor.collectContextMenuPreferencePages to include the spelling page, remove the obsolete entry from JavaEditor, and add the properties file editor page in PropertiesFileEditor.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
}
			
			if (PreferenceConstants.EDITOR_FOLDING_PROVIDER.equals(property)) {
				if (sourceViewer instanceof ProjectionViewer) {
					ProjectionViewer projectionViewer= (ProjectionViewer) sourceViewer;
					if (fProjectionModelUpdater != null)
						fProjectionModelUpdater.uninstall();
					
					fProjectionModelUpdater= JavaPlugin.getDefault().getFoldingStructureProviderRegistry().getCurrentFoldingProvider();
					if (fProjectionModelUpdater != null) {
						fProjectionModelUpdater.install(this, projectionViewer);
					}
				}
				return;
			}
			
			if (DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE.equals(property)) {
				sourceViewer.getTextWidget().setTabs(getSourceViewerConfiguration().getTabWidth(sourceViewer));
				return;
			}
			
			if (PreferenceConstants.EDITOR_FOLDING_ENABLED.equals(property)) {
				if (sourceViewer instanceof ProjectionViewer) {
					new ToggleFoldingRunner().runWhenNextVisible();
				}
				return;
			}
			
		} finally {
			super.handlePreferenceStoreChanged(event);