package tk.eclipse.plugin.jseditor.editors;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.views.contentoutline.ContentOutlinePage;
import tk.eclipse.plugin.htmleditor.HTMLPlugin;
/**
* ContentOutlinePage implementation for JavaScriptEditor.
*
* @see tk.eclipse.plugin.jseditor.editors.JavaScriptEditor
* @author Naoki Takezoe
*/
public class JavaScriptOutlinePage extends ContentOutlinePage {
private JavaScriptModel model;
private JavaScriptEditor editor;
public JavaScriptOutlinePage(JavaScriptEditor editor) {
super();
this.editor = editor;
}
@Override
public void createControl(Composite parent) {
super.createControl(parent);
model = new JavaScriptModel(editor.getDocumentProvider().getDocument(editor.getEditorInput()).get());
TreeViewer viewer = getTreeViewer();
viewer.setContentProvider(new JavaScriptContentProvider());
viewer.setLabelProvider(new JavaScriptLabelProvider());
viewer.addSelectionChangedListener(new JavaScriptSelectionChangedListener());
viewer.setInput(model);
update();
}
public void update(){
try {
model.update(editor.getDocumentProvider().getDocument(editor.getEditorInput()).get());
getTreeViewer().refresh();
} catch(Throwable t){
}
}
/** ITreeContentProvider implementation for JavaScriptOutlinePage. */
private class JavaScriptContentProvider implements ITreeContentProvider {
public Object[] getChildren(Object parentElement) {
if(parentElement instanceof JavaScriptContext){
return ((JavaScriptContext)parentElement).getChildren();
}
return new Object[0];
}
public Object getParent(Object element) {
if(element instanceof JavaScriptContext){
return ((JavaScriptContext)element).getParent();
}
return null;
}
public boolean hasChildren(Object element) {
if(getChildren(element).length==0){
return false;
} else {
return true;
}
}
public Object[] getElements(Object inputElement) {
return getChildren(inputElement);
}
public void dispose() {
}
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
}
}
/** ISelectionChangedListener implementation for JavaScriptOutlinePage. */
private class JavaScriptSelectionChangedListener implements ISelectionChangedListener {
public void selectionChanged(SelectionChangedEvent event) {
IStructuredSelection sel = (IStructuredSelection)event.getSelection();
JavaScriptElement func = (JavaScriptElement)sel.getFirstElement();
if(func!=null){
editor.selectAndReveal(func.getOffset(), 0);
}
}
}
/** LabelProvider implementation for JavaScriptOutlinePage. */
private class JavaScriptLabelProvider extends LabelProvider {
@Override
public Image getImage(Object element){
if(element instanceof JavaScriptFunction){
return HTMLPlugin.getDefault().getImageRegistry().get(HTMLPlugin.ICON_FUNCTION);
}
if(element instanceof JavaScriptVariable){
return HTMLPlugin.getDefault().getImageRegistry().get(HTMLPlugin.ICON_VARIABLE);
}
return null;
}
}
}