/**
* Creates the context menu that is associated with the tree.
*
* <p><strong>The {@link #createActions} method must have been invoked prior to this
* method</strong>
*/
private void createContextMenu() {
// Create menu manager.
MenuManager menuManager = new MenuManager();
menuManager.add(newPolicyAction);
menuManager.add(new Separator());
menuManager.add(deletePolicyAction);
// Create the menu and add it to the tree.
final Tree tree = categoriesComposite.getTreeViewer().getTree();
Menu menu = menuManager.createContextMenu(tree);
tree.setMenu(menu);
}
// rest of javadoc inherited
public DeviceDefinitionPoliciesSection(Composite parent, int style, DeviceEditorContext context) {
super(parent, style);
setMinWidth(DEFAULT_MIN_WIDTH);
this.context = context;
DeviceRepositoryAccessorManager dram = context.getDeviceRepositoryAccessorManager();
Section section = SectionFactory.createSection(this, SWT.NONE, TITLE, MESSAGE);
GridData data = new GridData(GridData.FILL_BOTH);
section.setLayoutData(data);
categoriesComposite = new CategoriesComposite(section, CategoriesComposite.POLICIES, dram);
section.setClient(categoriesComposite);
// Set up a focus listener for maintaining global actions.
categoriesComposite
.getTreeViewer()
.getControl()
.addFocusListener(
new FocusListener() {
public void focusGained(FocusEvent event) {
IActionBars actionBars =
DeviceDefinitionPoliciesSection.this.context.getActionBars();
origDelete = actionBars.getGlobalActionHandler(IWorkbenchActionConstants.DELETE);
actionBars.setGlobalActionHandler(
IWorkbenchActionConstants.DELETE, deletePolicyAction);
actionBars.updateActionBars();
}
public void focusLost(FocusEvent event) {
IActionBars actionBars =
DeviceDefinitionPoliciesSection.this.context.getActionBars();
actionBars.setGlobalActionHandler(IWorkbenchActionConstants.DELETE, origDelete);
actionBars.updateActionBars();
}
});
// We use the selection manager for event handling because it allows
// use to use filters which we need for resolving category elements
// for use with ODOMAction enablement.
categoriesComposite.addSelectionChangedListener(context.getODOMSelectionManager());
data = new GridData(GridData.FILL_BOTH);
categoriesComposite.setLayoutData(data);
createActions();
createContextMenu();
createButtons(this, SWT.NONE);
}
/**
* Select's the new named policy element in the tree.
*
* @param newPolicyName the name of the new policy to select.
*/
private void selectNewPolicy(final String newPolicyName) {
// Create the XPath for selecting the new policy element just created
// from the definitions document.
final StringBuffer newPolicyXPathBuffer = new StringBuffer();
newPolicyXPathBuffer
.append("//")
.append(MCSNamespace.DEVICE_DEFINITIONS.getPrefix())
.append(':')
.append(DeviceRepositorySchemaConstants.POLICY_ELEMENT_NAME)
.append("[@")
.append(DeviceRepositorySchemaConstants.POLICY_NAME_ATTRIBUTE)
.append("=\"")
.append(newPolicyName)
.append("\"]");
final XPath newPolicyXPath =
new XPath(
newPolicyXPathBuffer.toString(), new Namespace[] {MCSNamespace.DEVICE_DEFINITIONS});
Element newPolicyElement = null;
try {
// Get the definitions root for the XPath search.
final Element definitionsRoot =
context
.getDeviceRepositoryAccessorManager()
.getDeviceDefinitionsDocument()
.getRootElement();
// Retrieve the new policy element.
newPolicyElement = newPolicyXPath.selectSingleElement(definitionsRoot);
} catch (XPathException e) {
EclipseCommonPlugin.handleError(ABPlugin.getDefault(), e);
}
TreeViewer treeViewer = categoriesComposite.getTreeViewer();
// Expand the tree to the new policy element's level and select it.
treeViewer.expandToLevel(newPolicyElement, 1);
treeViewer.setSelection(new StructuredSelection(newPolicyElement), true);
}
