core/plugins/org.eclipse.dltk.ui/src/org/eclipse/dltk/ui/AbstractDLTKUILanguageToolkit.java

package org.eclipse.dltk.ui;

import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.content.IContentType;
import org.eclipse.core.runtime.content.IContentTypeManager;
import org.eclipse.core.runtime.preferences.InstanceScope;
import org.eclipse.dltk.compiler.CharOperation;
import org.eclipse.dltk.core.DLTKCore;
import org.eclipse.dltk.core.IDLTKLanguageToolkit;
import org.eclipse.dltk.core.ISourceModule;
import org.eclipse.dltk.ui.editor.highlighting.ISemanticHighlighter;
import org.eclipse.dltk.ui.editor.highlighting.SemanticHighlighting;
import org.eclipse.dltk.ui.text.ScriptSourceViewerConfiguration;
import org.eclipse.dltk.ui.text.ScriptTextTools;
import org.eclipse.dltk.ui.viewsupport.ScriptUILabelProvider;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.text.rules.IPartitionTokenScanner;
import org.eclipse.ui.IEditorDescriptor;
import org.eclipse.ui.IEditorRegistry;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.editors.text.EditorsUI;
import org.eclipse.ui.texteditor.ChainedPreferenceStore;
import org.eclipse.ui.texteditor.ITextEditor;

public abstract class AbstractDLTKUILanguageToolkit implements
		IDLTKUILanguageToolkit {

	public ScriptUILabelProvider createScriptUILabelProvider() {
		// TODO Auto-generated method stub
		return null;
	}

	public ScriptSourceViewerConfiguration createSourceViewerConfiguration() {
		return null;
	}

	public String getDebugPreferencePage() {
		return null;
	}

	/**
	 * The combined preference store.
	 */
	private IPreferenceStore fCombinedPreferenceStore;

	/**
	 * Returns a combined preference store, this store is read-only.
	 * 
	 * @return the combined preference store
	 */
	public IPreferenceStore getCombinedPreferenceStore() {
		if (fCombinedPreferenceStore == null) {
			final InstanceScope instanceScope = new InstanceScope();
			fCombinedPreferenceStore = new ChainedPreferenceStore(
					new IPreferenceStore[] {
							getPreferenceStore(),
							new EclipsePreferencesAdapter(instanceScope,
									getCoreToolkit().getPreferenceQualifier()),
							DLTKUIPlugin.getDefault().getPreferenceStore(),
							new EclipsePreferencesAdapter(instanceScope,
									DLTKCore.PLUGIN_ID),
							EditorsUI.getPreferenceStore() });
		}
		return fCombinedPreferenceStore;
	}

	public boolean getProvideMembers(ISourceModule element) {
		return true;
	}

	public ScriptElementLabels getScriptElementLabels() {
		return new ScriptElementLabels();
	}

	/**
	 * @deprecated
	 */
	protected final Object getUIPLugin() {
		return null;
	}

	public String getEditorId(Object inputElement) {
		IDLTKLanguageToolkit toolkit = this.getCoreToolkit();
		String contentTypeID = toolkit.getLanguageContentType();
		if (contentTypeID == null) {
			return null;
		}
		IEditorRegistry editorRegistry = PlatformUI.getWorkbench()
				.getEditorRegistry();
		IContentTypeManager contentTypeManager = Platform
				.getContentTypeManager();
		IContentType contentType = contentTypeManager
				.getContentType(contentTypeID);
		if (contentType == null) {
			return null;
		}

		String fileName = null;
		if (inputElement instanceof ISourceModule) {
			fileName = ((ISourceModule) inputElement).getPath().toString();
		} else if (inputElement instanceof IResource) {
			fileName = ((IResource) inputElement).getFullPath().toString();
		}

		IEditorDescriptor editor = editorRegistry.getDefaultEditor(fileName,
				contentType);
		if (editor != null) {
			return editor.getId();
		}
		return null;
	}

	public String getInterpreterContainerId() {
		return null;
	}

	public String getInterpreterPreferencePage() {
		return null;
	}

	public String getPartitioningId() {
		return "__default_dltk_partitioning"; //$NON-NLS-1$
	}

	public ScriptTextTools getTextTools() {
		return new ScriptTextTools(getPartitioningId(),
				CharOperation.NO_STRINGS, true) {
			public ScriptSourceViewerConfiguration createSourceViewerConfiguraton(
					IPreferenceStore preferenceStore, ITextEditor editor,
					String partitioning) {
				return null;
			}

			public IPartitionTokenScanner getPartitionScanner() {
				return null;
			}

			public SemanticHighlighting[] getSemanticHighlightings() {
				return null;
			}

			public ISemanticHighlighter getSemanticPositionUpdater() {
				return null;
			}
		};
	}

	public String[] getEditorPreferencePages() {
		return null;
	}
}