protected Control createDialogArea()

in eclipse/eclipse-ui/src/org/apache/sling/ide/eclipse/ui/actions/NewNodeDialog.java [76:157]
68 lines of code
6 McCabe index (conditional complexity)

    protected Control createDialogArea(Composite parent) {
        Composite composite = (Composite) super.createDialogArea(parent);
        
        Control[] children = composite.getChildren();
        Control errorMessageText = children[children.length-1];
        GridData errorMessageGridData = new GridData(GridData.GRAB_HORIZONTAL
                | GridData.HORIZONTAL_ALIGN_FILL);
        errorMessageGridData.heightHint = convertHeightInCharsToPixels(2);
        errorMessageText.setLayoutData(errorMessageGridData);
        
        // now add the node type dropbox-combo
        Label label = new Label(composite, SWT.WRAP);
        label.moveAbove(errorMessageText);
        label.setText("Define node type");
        GridData data = new GridData(GridData.GRAB_HORIZONTAL
                | GridData.GRAB_VERTICAL | GridData.HORIZONTAL_ALIGN_FILL
                | GridData.VERTICAL_ALIGN_CENTER);
        data.widthHint = convertHorizontalDLUsToPixels(IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH);
        label.setLayoutData(data);
        label.setFont(parent.getFont());

        combo = new Combo(composite, SWT.DROP_DOWN);
        combo.moveAbove(errorMessageText);
        if (allowedChildren!=null) {
            combo.setItems(allowedChildren.toArray(new String[0]));
        }
        combo.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL
                | GridData.HORIZONTAL_ALIGN_FILL));
        combo.addSelectionListener(new SelectionAdapter() {
            @Override
            public void widgetSelected(SelectionEvent e) {
                comboSelection = combo.getText();
                validateInput();
            }
        });
        combo.addModifyListener(new ModifyListener() {

            @Override
            public void modifyText(ModifyEvent e) {
                comboSelection = combo.getText();
                validateInput();
            }
            
        });

        SimpleContentProposalProvider proposalProvider = new SimpleContentProposalProvider(combo.getItems());
        proposalProvider.setFiltering(true);
        final ComboContentAdapter controlContentAdapter = new ComboContentAdapter() {
            @Override
            public void insertControlContents(Control control, String text,
                    int cursorPosition) {
                Point selection = combo.getSelection();
                combo.setText(text);
                selection.x = selection.x + cursorPosition;
                selection.y = selection.x;
                combo.setSelection(selection);
            }
            
            @Override
            public Rectangle getInsertionBounds(Control control) {
                final Rectangle insertionBounds = super.getInsertionBounds(control);
                // always insert at start
                insertionBounds.x = 0;
                insertionBounds.y = 0;
                return insertionBounds;
            }
            
            
        };
        // this variant opens auto-complete on each character
        proposalAdapter = new ContentProposalAdapter(combo, controlContentAdapter, proposalProvider, null, null);
        // this variant opens auto-complete only when invoking the auto-complete hotkey
        if (allowedChildren!=null && allowedChildren.size()==1) {
            combo.setText(allowedChildren.iterator().next());
        } else if (allowedChildren!=null) {
            if (allowedChildren.contains(lastChosenNodeType)) {
                combo.setText(lastChosenNodeType);
            }
        }
        
        return composite;
    }