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- package com.vaadin.tests.components.treegrid;
-
- import java.util.Arrays;
- import java.util.LinkedHashMap;
- import java.util.List;
- import java.util.Optional;
- import java.util.function.Consumer;
- import java.util.stream.Stream;
-
- import com.vaadin.annotations.Theme;
- import com.vaadin.annotations.Widgetset;
- import com.vaadin.data.TreeData;
- import com.vaadin.data.provider.DataProvider;
- import com.vaadin.data.provider.HierarchicalDataProvider;
- import com.vaadin.data.provider.HierarchicalQuery;
- import com.vaadin.data.provider.TreeDataProvider;
- import com.vaadin.server.SerializablePredicate;
- import com.vaadin.shared.Range;
- import com.vaadin.tests.components.AbstractComponentTest;
- import com.vaadin.tests.data.bean.HierarchicalTestBean;
- import com.vaadin.ui.Grid.Column;
- import com.vaadin.ui.Grid.SelectionMode;
- import com.vaadin.ui.ItemCollapseAllowedProvider;
- import com.vaadin.ui.TreeGrid;
- import com.vaadin.ui.renderers.HtmlRenderer;
- import com.vaadin.ui.renderers.TextRenderer;
-
- @Theme("valo")
- @Widgetset("com.vaadin.DefaultWidgetSet")
- public class TreeGridBasicFeatures extends AbstractComponentTest<TreeGrid> {
-
- private TreeGrid<HierarchicalTestBean> grid;
- private TreeDataProvider<HierarchicalTestBean> inMemoryDataProvider;
- private LazyHierarchicalDataProvider lazyDataProvider;
- private HierarchicalDataProvider<HierarchicalTestBean, ?> loggingDataProvider;
- private Column<HierarchicalTestBean, String> hierarchyColumn;
-
- @Override
- public TreeGrid getComponent() {
- return grid;
- }
-
- @Override
- protected Class<TreeGrid> getTestClass() {
- return TreeGrid.class;
- }
-
- @Override
- protected void initializeComponents() {
- initializeDataProviders();
- grid = new TreeGrid<>();
- grid.setSizeFull();
- hierarchyColumn = grid.addColumn(HierarchicalTestBean::toString);
- hierarchyColumn.setCaption("String").setId("string").setStyleGenerator(
- t -> hierarchyColumn.getRenderer().getClass().getSimpleName());
- grid.addColumn(HierarchicalTestBean::getDepth).setCaption("Depth")
- .setId("depth").setDescriptionGenerator(
- t -> "Hierarchy depth: " + t.getDepth());
- grid.addColumn(HierarchicalTestBean::getIndex)
- .setCaption("Index on this depth").setId("index");
- grid.setHierarchyColumn("string");
- grid.setDataProvider(new LazyHierarchicalDataProvider(3, 2));
-
- grid.setId("testComponent");
- addTestComponent(grid);
- }
-
- @Override
- protected void createActions() {
- super.createActions();
-
- createDataProviderSelect();
- createHierarchyColumnSelect();
- createCollapseAllowedSelect();
- createRendererSelect();
- createExpandMenu();
- createCollapseMenu();
- createListenerMenu();
- createSelectionModeMenu();
- }
-
- private void initializeDataProviders() {
- TreeData<HierarchicalTestBean> data = new TreeData<>();
-
- List<Integer> ints = Arrays.asList(0, 1, 2);
-
- ints.stream().forEach(index -> {
- HierarchicalTestBean bean = new HierarchicalTestBean(null, 0,
- index);
- data.addItem(null, bean);
- ints.stream().forEach(childIndex -> {
- HierarchicalTestBean childBean = new HierarchicalTestBean(
- bean.getId(), 1, childIndex);
- data.addItem(bean, childBean);
- ints.stream()
- .forEach(grandChildIndex -> data.addItem(childBean,
- new HierarchicalTestBean(childBean.getId(), 2,
- grandChildIndex)));
- });
- });
-
- inMemoryDataProvider = new TreeDataProvider<>(data);
- lazyDataProvider = new LazyHierarchicalDataProvider(3, 2);
- loggingDataProvider = new TreeDataProvider<HierarchicalTestBean>(data) {
-
- @Override
- public Stream<HierarchicalTestBean> fetchChildren(
- HierarchicalQuery<HierarchicalTestBean, SerializablePredicate<HierarchicalTestBean>> query) {
- Optional<HierarchicalTestBean> parentOptional = query
- .getParentOptional();
- if (parentOptional.isPresent()) {
- log("Children request: " + parentOptional.get() + " ; "
- + Range.withLength(query.getOffset(),
- query.getLimit()));
- } else {
- log("Root node request: " + Range
- .withLength(query.getOffset(), query.getLimit()));
- }
- return super.fetchChildren(query);
- }
- };
-
- }
-
- @SuppressWarnings("unchecked")
- private void createDataProviderSelect() {
- @SuppressWarnings("rawtypes")
- LinkedHashMap<String, DataProvider> options = new LinkedHashMap<>();
- options.put("LazyHierarchicalDataProvider", lazyDataProvider);
- options.put("TreeDataProvider", inMemoryDataProvider);
- options.put("LoggingDataProvider", loggingDataProvider);
-
- createSelectAction("Set data provider", CATEGORY_FEATURES, options,
- "LazyHierarchicalDataProvider",
- (treeGrid, value, data) -> treeGrid.setDataProvider(value));
- }
-
- private void createHierarchyColumnSelect() {
- LinkedHashMap<String, String> options = new LinkedHashMap<>();
- grid.getColumns().stream()
- .forEach(column -> options.put(column.getId(), column.getId()));
-
- createSelectAction("Set hierarchy column", CATEGORY_FEATURES, options,
- grid.getColumns().get(0).getId(),
- (treeGrid, value, data) -> treeGrid.setHierarchyColumn(value));
- }
-
- @SuppressWarnings("unchecked")
- private void createCollapseAllowedSelect() {
- LinkedHashMap<String, ItemCollapseAllowedProvider<HierarchicalTestBean>> options = new LinkedHashMap<>();
- options.put("all allowed", t -> true);
- options.put("all disabled", t -> false);
- options.put("depth 0 disabled", t -> t.getDepth() != 0);
- options.put("depth 1 disabled", t -> t.getDepth() != 1);
-
- createSelectAction("Collapse allowed", CATEGORY_FEATURES, options,
- "all allowed", (treeGrid, value, data) -> treeGrid
- .setItemCollapseAllowedProvider(value));
- }
-
- private void createRendererSelect() {
- LinkedHashMap<String, Consumer<Column<?, String>>> options = new LinkedHashMap<>();
- options.put("text", c -> c.setRenderer(new TextRenderer()));
- options.put("html", c -> c.setRenderer(new HtmlRenderer()));
-
- createSelectAction("Hierarchy column renderer", CATEGORY_FEATURES,
- options, "text",
- (treeGrid, consumer, data) -> consumer.accept(hierarchyColumn));
- }
-
- @SuppressWarnings("unchecked")
- private void createExpandMenu() {
- createCategory("Server-side expand", CATEGORY_FEATURES);
- createClickAction("Expand 0 | 0", "Server-side expand",
- (treeGrid, value, data) -> treeGrid.expand(value),
- new HierarchicalTestBean(null, 0, 0));
- createClickAction("Expand 1 | 1", "Server-side expand",
- (treeGrid, value, data) -> treeGrid.expand(value),
- new HierarchicalTestBean("/0/0", 1, 1));
- createClickAction("Expand 2 | 1", "Server-side expand",
- (treeGrid, value, data) -> treeGrid.expand(value),
- new HierarchicalTestBean("/0/0/1/1", 2, 1));
-
- createClickAction("Expand 0 | 0 recursively", "Server-side expand",
- (treeGrid, value, data) -> treeGrid
- .expandRecursively(Arrays.asList(value), 1),
- new HierarchicalTestBean(null, 0, 0));
- }
-
- @SuppressWarnings("unchecked")
- private void createCollapseMenu() {
- createCategory("Server-side collapse", CATEGORY_FEATURES);
- createClickAction("Collapse 0 | 0", "Server-side collapse",
- (treeGrid, value, data) -> treeGrid.collapse(value),
- new HierarchicalTestBean(null, 0, 0));
- createClickAction("Collapse 1 | 1", "Server-side collapse",
- (treeGrid, value, data) -> treeGrid.collapse(value),
- new HierarchicalTestBean("/0/0", 1, 1));
- createClickAction("Collapse 2 | 1", "Server-side collapse",
- (treeGrid, value, data) -> treeGrid.collapse(value),
- new HierarchicalTestBean("/0/0/1/1", 2, 1));
-
- createClickAction("Collapse 0 | 0 recursively", "Server-side collapse",
- (treeGrid, value, data) -> treeGrid
- .collapseRecursively(Arrays.asList(value), 2),
- new HierarchicalTestBean(null, 0, 0));
- }
-
- @SuppressWarnings("unchecked")
- private void createListenerMenu() {
- createListenerAction("Collapse listener", "State",
- treeGrid -> treeGrid.addCollapseListener(
- event -> log("Item collapsed (user originated: "
- + event.isUserOriginated() + "): "
- + event.getCollapsedItem())));
- createListenerAction("Expand listener", "State",
- treeGrid -> treeGrid.addExpandListener(
- event -> log("Item expanded (user originated: "
- + event.isUserOriginated() + "): "
- + event.getExpandedItem())));
- }
-
- private void createSelectionModeMenu() {
- LinkedHashMap<String, SelectionMode> options = new LinkedHashMap<>();
- options.put("none", SelectionMode.NONE);
- options.put("single", SelectionMode.SINGLE);
- options.put("multi", SelectionMode.MULTI);
-
- createSelectAction("Selection mode", "State", options, "single",
- (treeGrid, value, data) -> treeGrid.setSelectionMode(value));
- }
- }
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