- * This class is not intended to be extended by clients. - *
- */ -public class ResourceComponent implements IVariableComponent { - private IGroupDialogPage page; - private boolean isValid = true; - - protected Group mainGroup; - protected Button selectedResourceButton; - protected Button specificResourceButton; - protected TreeViewer resourceList; - private IResource selectedResource; - - /** - * Creates the component - */ - public ResourceComponent() { - super(); - } - - /* (non-Javadoc) - * Method declared on IVariableComponent. - */ - public void createContents(Composite parent, String varTag, IGroupDialogPage page) { - this.page = page; - - // main composite - mainGroup = new Group(parent, SWT.NONE); - GridLayout layout = new GridLayout(); - layout.marginWidth = 0; - layout.marginHeight = 0; - layout.numColumns = 1; - GridData gridData = new GridData(GridData.FILL_BOTH); - mainGroup.setLayout(layout); - mainGroup.setLayoutData(gridData); - mainGroup.setFont(parent.getFont()); - mainGroup.setText(ToolUtil.buildVariableTag(varTag, null)); - - createSelectedResourceOption(); - createSpecificResourceOption(); - createResourceList(); - - updateResourceListEnablement(); - } - - /** - * Creates the list of resources. - */ - protected void createResourceList() { - Tree tree = new Tree(mainGroup, SWT.SINGLE | SWT.BORDER); - GridData data = new GridData(GridData.FILL_BOTH); - data.heightHint = tree.getItemHeight() * getInitialVisibleItemCount(); - tree.setLayoutData(data); - tree.setFont(mainGroup.getFont()); - - resourceList = new TreeViewer(tree); - resourceList.addSelectionChangedListener(new ISelectionChangedListener() { - public void selectionChanged(SelectionChangedEvent event) { - validateResourceListSelection(); - selectedResource= (IResource) ((IStructuredSelection)event.getSelection()).getFirstElement(); - } - }); - resourceList.setContentProvider(new WorkbenchContentProvider()); - resourceList.setLabelProvider(new WorkbenchLabelProvider()); - resourceList.setInput(ResourcesPlugin.getWorkspace().getRoot()); - } - - /** - * Creates the option button for using the selected - * resource. - */ - protected void createSelectedResourceOption() { - selectedResourceButton = new Button(mainGroup, SWT.RADIO); - selectedResourceButton.setText(ExternalToolsModelMessages.getString("ResourceComponent.selectedResLabel")); //$NON-NLS-1$ - GridData data = new GridData(GridData.HORIZONTAL_ALIGN_FILL); - selectedResourceButton.setLayoutData(data); - selectedResourceButton.setFont(mainGroup.getFont()); - selectedResourceButton.setSelection(true); - } - - /** - * Creates the option button for using a specific - * resource. - */ - protected void createSpecificResourceOption() { - specificResourceButton = new Button(mainGroup, SWT.RADIO); - specificResourceButton.setText(ExternalToolsModelMessages.getString("ResourceComponent.specificResLabel")); //$NON-NLS-1$ - GridData data = new GridData(GridData.HORIZONTAL_ALIGN_FILL); - specificResourceButton.setLayoutData(data); - specificResourceButton.setFont(mainGroup.getFont()); - specificResourceButton.setSelection(false); - - specificResourceButton.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - updateResourceListEnablement(); - } - }); - } - - /* (non-Javadoc) - * Method declared on IVariableComponent. - */ - public Control getControl() { - return mainGroup; - } - - /** - * Returns the dialog page this component is part of - */ - protected final IGroupDialogPage getPage() { - return page; - } - - /* (non-Javadoc) - * Method declared on IVariableComponent. - */ - public String getVariableValue() { - if (selectedResourceButton != null && selectedResourceButton.getSelection()) - return null; - - if (resourceList != null) { - if (selectedResource != null) - return selectedResource.getFullPath().toString(); - } - - return null; - } - - /** - * Returns the number of items to be visible in the - * resource list. This will determine the initial height. - */ - protected int getInitialVisibleItemCount() { - return 10; - } - - /* (non-Javadoc) - * Method declared on IVariableComponent. - */ - public boolean isValid() { - return isValid; - } - - /** - * Sets whether the component's values are all valid. - * Updates the components's page valid state. No action - * taken if new valid state same as current one. - * - * @param isValidtrue if all values valid,
- * false otherwise
- */
- protected final void setIsValid(boolean isValid) {
- if (this.isValid != isValid) {
- this.isValid = isValid;
- this.page.updateValidState();
- }
- }
-
- /**
- * Updates the enablement of the resource list if needed
- */
- protected void updateResourceListEnablement() {
- if (specificResourceButton != null && resourceList != null)
- resourceList.getTree().setEnabled(specificResourceButton.getSelection());
- }
-
- /* (non-Javadoc)
- * Method declared on IVariableComponent.
- */
- public void setVariableValue(String varValue) {
- if (varValue == null || varValue.length() == 0) {
- if (selectedResourceButton != null)
- selectedResourceButton.setSelection(true);
- if (specificResourceButton != null)
- specificResourceButton.setSelection(false);
- if (resourceList != null)
- resourceList.getTree().setEnabled(false);
- } else {
- if (selectedResourceButton != null)
- selectedResourceButton.setSelection(false);
- if (specificResourceButton != null)
- specificResourceButton.setSelection(true);
- if (resourceList != null) {
- resourceList.getTree().setEnabled(true);
- IResource member = ResourcesPlugin.getWorkspace().getRoot().findMember(varValue);
- if (member != null)
- resourceList.setSelection(new StructuredSelection(member), true);
- else
- resourceList.setSelection(StructuredSelection.EMPTY);
- }
- }
- }
-
- /* (non-Javadoc)
- * Method declared on IVariableComponent.
- */
- public void validate() {
- if (specificResourceButton != null && specificResourceButton.getSelection()) {
- validateResourceListSelection();
- }
-
- getPage().setMessage(null, IMessageProvider.NONE);
- setIsValid(true);
- }
-
- /**
- * Returns whether that the resource list selection is valid.
- * If the list was not created, returns true.
- *
- * @return true to continue validating other
- * fields, false to stop.
- */
- protected boolean validateResourceListSelection() {
- if (resourceList == null)
- return true;
-
- if (resourceList.getSelection().isEmpty()) {
- getPage().setMessage(ExternalToolsModelMessages.getString("ResourceComponent.selectionRequired"), IMessageProvider.WARNING); //$NON-NLS-1$
- setIsValid(false);
- return false;
- }
-
- return true;
- }
-}