public ImageResource getImageResource() {
if (type == null) {
return COCerResources.IMAGES.page_white();
}
if (type.getIconRefId() == null) {
return COCerResources.IMAGES.page_white();
}
String iconRefID = type.getIconRefId();
if (iconRefID.equals(CurriculumNodeTypeIconRefID.FLAG_BLUE)) {
return COCerResources.IMAGES.flag_blue();
}
if (iconRefID.equals(CurriculumNodeTypeIconRefID.FLAG_GREEN)) {
return COCerResources.IMAGES.flag_green();
}
if (iconRefID.equals(CurriculumNodeTypeIconRefID.FLAG_GREY)) {
return COCerResources.IMAGES.flag_grey();
}
if (iconRefID.equals(CurriculumNodeTypeIconRefID.FLAG_ORANGE)) {
return COCerResources.IMAGES.flag_orange();
}
if (iconRefID.equals(CurriculumNodeTypeIconRefID.FLAG_RED)) {
return COCerResources.IMAGES.flag_red();
}
if (iconRefID.equals(CurriculumNodeTypeIconRefID.FORM_BLANK_YELLOW)) {
return COCerResources.IMAGES.form_blank_yellow();
}
return COCerResources.IMAGES.page_white();
}
/**
* Class constructor
*
* @param binder
*/
@Inject
public CurriculumNodeTreeView(final Binder binder) {
// tree comes pre sorted from server
tree =
new Tree<CurriculumNodeProxy, String>(
store,
new ValueProvider<CurriculumNodeProxy, String>() {
@Override
public String getValue(CurriculumNodeProxy object) {
return object.getName();
}
@Override
public void setValue(CurriculumNodeProxy object, String value) {}
@Override
public String getPath() {
return "name";
}
});
tree.setIconProvider(
new IconProvider<CurriculumNodeProxy>() {
@Override
public ImageResource getIcon(CurriculumNodeProxy model) {
CurriculumNodeTypeIcon icon = new CurriculumNodeTypeIcon(model.getType());
return icon.getImageResource();
}
});
// checkbox tree configuration
tree.setCheckable(true);
tree.setCheckNodes(CheckNodes.BOTH);
tree.setCheckStyle(CheckCascade.NONE);
tree.setAutoLoad(true);
// expanding context menu in tree, events should be handled in presenter
// (UI-Handler Class)
Menu contextMenu = new Menu();
MenuItem expandAll = new MenuItem(COCerResources.TEXT.expandAll());
expandAll.setIcon(COCerResources.IMAGES.arrow_out());
expandAll.addSelectionHandler(
new SelectionHandler<Item>() {
@Override
public void onSelection(SelectionEvent<Item> event) {
if (tree.getSelectionModel().getSelectedItem().equals(store.getRootItems().get(0))) {
tree.expandAll();
} else {
for (CurriculumNodeProxy node : tree.getSelectionModel().getSelectedItems()) {
tree.setExpanded(node, true, true);
}
}
}
});
contextMenu.add(expandAll);
MenuItem collapseAll = new MenuItem(COCerResources.TEXT.collapseAll());
collapseAll.setIcon(COCerResources.IMAGES.arrow_in());
collapseAll.addSelectionHandler(
new SelectionHandler<Item>() {
@Override
public void onSelection(SelectionEvent<Item> event) {
if (tree.getSelectionModel().getSelectedItem().equals(store.getRootItems().get(0))) {
tree.collapseAll();
} else {
for (CurriculumNodeProxy node : tree.getSelectionModel().getSelectedItems()) {
tree.setExpanded(node, false, true);
}
}
}
});
contextMenu.add(collapseAll);
tree.setContextMenu(contextMenu);
widget = binder.createAndBindUi(this);
panel.add(tree);
}