FileDocCategorySizeDatePackage
MenuEditor.javaAPI DocAndroid 1.5 API6056Wed May 06 22:41:10 BST 2009com.android.ide.eclipse.editors.menu

MenuEditor

public class MenuEditor extends com.android.ide.eclipse.editors.AndroidEditor
Multi-page form editor for /res/menu XML files.

Fields Summary
public static final String
ID
private com.android.ide.eclipse.editors.uimodel.UiElementNode
mUiRootNode
Root node of the UI element hierarchy
Constructors Summary
public MenuEditor()
Creates the form editor for resources XML files.


                 
      
        super();
    
Methods Summary
protected voidcreateFormPages()
Create the various form pages.

        try {
            addPage(new MenuTreePage(this));
        } catch (PartInitException e) {
            AdtPlugin.log(e, "Error creating nested page"); //$NON-NLS-1$
        }
        
     
public com.android.ide.eclipse.editors.uimodel.UiElementNodegetUiRootNode()
Returns the root node of the UI element hierarchy, which here is the "menu" node.

        return mUiRootNode;
    
protected voidinitUiRootNode(boolean force)
Creates the initial UI Root Node, including the known mandatory elements.

param
force if true, a new UiRootNode is recreated even if it already exists.

        // The root UI node is always created, even if there's no corresponding XML node.
        if (mUiRootNode == null || force) {
            Document doc = null;
            if (mUiRootNode != null) {
                doc = mUiRootNode.getXmlDocument();
            }
            
            // get the target data from the opened file (and its project)
            AndroidTargetData data = getTargetData();

            ElementDescriptor desc;
            if (data == null) {
                desc = new ElementDescriptor("temp", null /*children*/);
            } else {
                desc = data.getMenuDescriptors().getDescriptor();
            }

            mUiRootNode = desc.createUiNode();
            mUiRootNode.setEditor(this);

            onDescriptorsChanged(doc);
        }
    
public booleanisSaveAsAllowed()
Returns whether the "save as" operation is supported by this editor.

Save-As is a valid operation for the ManifestEditor since it acts on a single source file.

see
IEditorPart

        return true;
    
private voidonDescriptorsChanged(org.w3c.dom.Document document)
Reloads the UI manifest node from the XML, and calls the pages to update.

        if (document != null) {
            mUiRootNode.loadFromXmlNode(document);
        } else {
            mUiRootNode.reloadFromXmlNode(mUiRootNode.getXmlNode());
        }
    
protected voidsetInput(org.eclipse.ui.IEditorInput input)

        super.setInput(input);
        if (input instanceof FileEditorInput) {
            FileEditorInput fileInput = (FileEditorInput) input;
            IFile file = fileInput.getFile();
            setPartName(String.format("%1$s", file.getName()));
        }
    
protected voidxmlModelChanged(org.w3c.dom.Document xml_doc)
Processes the new XML Model, which XML root node is given.

param
xml_doc The XML document, if available, or null if none exists.

        // init the ui root on demand
        initUiRootNode(false /*force*/);

        mUiRootNode.setXmlDocument(xml_doc);
        if (xml_doc != null) {
            ElementDescriptor root_desc = mUiRootNode.getDescriptor();
            try {
                XPath xpath = AndroidXPathFactory.newXPath();
                Node node = (Node) xpath.evaluate("/" + root_desc.getXmlName(),  //$NON-NLS-1$
                        xml_doc,
                        XPathConstants.NODE);
                if (node == null && root_desc.isMandatory()) {
                    // Create the root element if it doesn't exist yet (for empty new documents)
                    node = mUiRootNode.createXmlNode();
                }

                // Refresh the manifest UI node and all its descendants 
                mUiRootNode.loadFromXmlNode(node);
                
                // TODO ? startMonitoringMarkers();
            } catch (XPathExpressionException e) {
                AdtPlugin.log(e, "XPath error when trying to find '%s' element in XML.", //$NON-NLS-1$
                        root_desc.getXmlName());
            }
        }
        
        super.xmlModelChanged(xml_doc);