private void processFolder(TreeStore<BaseDto> store, FolderDto folder) {
for (BaseDto child : folder.getChildren()) {
store.add(folder, child);
if (child instanceof FolderDto) {
processFolder(store, (FolderDto) child);
}
}
}
@Override
public Widget asWidget() {
if (panel == null) {
panel = new ContentPanel();
panel.setHeadingText("Cell Action Tree");
panel.setPixelSize(315, 400);
panel.addStyleName("margin-10");
VerticalLayoutContainer con = new VerticalLayoutContainer();
panel.add(con);
TreeStore<BaseDto> store = new TreeStore<BaseDto>(new KeyProvider());
FolderDto root = TestData.getMusicRootFolder();
for (BaseDto base : root.getChildren()) {
store.add(base);
if (base instanceof FolderDto) {
processFolder(store, (FolderDto) base);
}
}
SimpleSafeHtmlCell<String> cell =
new SimpleSafeHtmlCell<String>(SimpleSafeHtmlRenderer.getInstance(), "click") {
@Override
public void onBrowserEvent(
Context context,
Element parent,
String value,
NativeEvent event,
ValueUpdater<String> valueUpdater) {
super.onBrowserEvent(context, parent, value, event, valueUpdater);
if ("click".equals(event.getType())) {
Info.display("Click", "You clicked \"" + value + "\"!");
}
}
};
final Tree<BaseDto, String> tree =
new Tree<BaseDto, String>(
store,
new ValueProvider<BaseDto, String>() {
@Override
public String getValue(BaseDto object) {
return object.getName();
}
@Override
public void setValue(BaseDto object, String value) {}
@Override
public String getPath() {
return "name";
}
});
tree.setCell(cell);
tree.setWidth(300);
tree.getStyle().setLeafIcon(ExampleImages.INSTANCE.music());
ToolBar buttonBar = new ToolBar();
buttonBar.add(
new TextButton(
"Expand All",
new SelectHandler() {
@Override
public void onSelect(SelectEvent event) {
tree.expandAll();
}
}));
buttonBar.add(
new TextButton(
"Collapse All",
new SelectHandler() {
@Override
public void onSelect(SelectEvent event) {
tree.collapseAll();
}
}));
con.add(buttonBar, new VerticalLayoutData(1, -1));
con.add(tree, new VerticalLayoutData(1, 1));
}
return panel;
}
public Widget asWidget() {
FlowLayoutContainer con = new FlowLayoutContainer();
con.addStyleName("margin-10");
TreeStore<BaseDto> store = new TreeStore<BaseDto>(new KeyProvider());
FolderDto root = TestData.getMusicRootFolder();
for (BaseDto base : root.getChildren()) {
store.add(base);
if (base instanceof FolderDto) {
processFolder(store, (FolderDto) base);
}
}
StoreFilterField<BaseDto> filter =
new StoreFilterField<BaseDto>() {
@Override
protected boolean doSelect(
Store<BaseDto> store, BaseDto parent, BaseDto item, String filter) {
if (item instanceof FolderDto) {
return false;
}
String name = item.getName();
name = name.toLowerCase();
if (name.startsWith(filter.toLowerCase())) {
return true;
}
return false;
}
};
filter.bind(store);
final Tree<BaseDto, String> tree =
new Tree<BaseDto, String>(
store,
new ValueProvider<BaseDto, String>() {
@Override
public String getValue(BaseDto object) {
return object.getName();
}
@Override
public void setValue(BaseDto object, String value) {}
@Override
public String getPath() {
return "name";
}
});
tree.setWidth(300);
tree.getStyle().setLeafIcon(ExampleImages.INSTANCE.music());
ButtonBar buttonBar = new ButtonBar();
buttonBar.add(
new TextButton(
"Expand All",
new SelectHandler() {
@Override
public void onSelect(SelectEvent event) {
tree.expandAll();
}
}));
buttonBar.add(
new TextButton(
"Collapse All",
new SelectHandler() {
@Override
public void onSelect(SelectEvent event) {
tree.collapseAll();
}
}));
buttonBar.setLayoutData(new MarginData(4));
con.add(filter);
con.add(buttonBar);
con.add(tree);
return con;
}