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34 package info.magnolia.ui.framework.overlay;
35
36 import static java.util.stream.Collectors.toList;
37
38 import info.magnolia.ui.CloseHandler;
39 import info.magnolia.ui.actionbar.definition.ConfiguredActionbarDefinition;
40 import info.magnolia.ui.api.ioc.UiContextScoped;
41 import info.magnolia.ui.availability.AvailabilityChecker;
42 import info.magnolia.ui.chooser.Chooser;
43 import info.magnolia.ui.chooser.definition.ChooserDefinition;
44 import info.magnolia.ui.contentapp.browser.actions.ActionbarPresenter;
45 import info.magnolia.ui.contentapp.browser.actions.ActionbarView;
46 import info.magnolia.ui.datasource.DatasourceDefinition;
47 import info.magnolia.ui.dialog.ActionExecution;
48 import info.magnolia.ui.dialog.DialogBuilder;
49 import info.magnolia.ui.dialog.EditorActionBar;
50 import info.magnolia.ui.framework.ioc.SessionStore;
51 import info.magnolia.ui.framework.ioc.UiComponentProvider;
52 import info.magnolia.ui.framework.layout.LayoutDefinition;
53
54 import java.util.HashMap;
55 import java.util.List;
56 import java.util.Optional;
57 import java.util.concurrent.CompletableFuture;
58
59 import javax.inject.Inject;
60
61 import com.vaadin.ui.Component;
62 import com.vaadin.ui.HorizontalLayout;
63 import com.vaadin.ui.Window;
64
65 import lombok.AccessLevel;
66 import lombok.AllArgsConstructor;
67
68
69
70
71 @UiContextScoped
72 public class ChooserController {
73
74
75
76
77 private static final String SAME_AS_GRID_HEIGHT = "445px";
78 private final UiComponentProvider componentProvider;
79 private final DatasourceDefinition datasourceDefinition;
80
81 @Inject
82 public ChooserController(UiComponentProvider componentProvider, DatasourceDefinition datasourceDefinition) {
83 this.componentProvider = componentProvider;
84 this.datasourceDefinition = datasourceDefinition;
85 }
86
87 public ChooserController(UiComponentProvider componentProvider) {
88 this(componentProvider, null);
89 }
90
91 public <T, C extends Chooser<T>> OnItemChosen<T> openChooser(ChooserDefinition<T, C> definition, T initialChoice) {
92 Chooser<T> chooser = componentProvider.inChildContext(definition).newInstance(definition.getImplementationClass());
93 chooser.setChoice(initialChoice);
94
95 OnItemChosen<T> result = new OnItemChosen<>();
96 Window chooserWindow = buildWindow(definition, chooser, result);
97
98
99 chooserWindow.addStyleName("choose-dialog-always-on-top");
100
101 chooser.bindInstance(CloseHandler.class, chooserWindow::close);
102 chooser.bindInstance(ChooseHandler.class, (action) -> result
103 .action(action)
104 .complete(ChooseResult.ofChoice(chooser.getChoice())));
105
106 return result;
107 }
108
109 private <T, C extends Chooser<T>> Window buildWindow(ChooserDefinition<T, C> definition, Chooser<T> chooser, OnItemChosen<T> result) {
110 return DialogBuilder.dialog()
111 .withTitle(definition.getLabel())
112 .light(definition.isLight())
113 .width(definition.getWidth())
114 .withContent(prepareChooserLayout(chooser))
115 .withFooter(prepareFooter(definition, chooser))
116 .withStyles("choose-dialog")
117 .withCloseListener(e -> {
118 result.complete(ChooseResult.ofChoice(null));
119 SessionStore.access().releaseBeanStore(chooser.getCurrentViewReference());
120 })
121 .buildAndOpen();
122 }
123
124
125 private <T, C extends Chooser<T>> HorizontalLayout prepareChooserLayout(Chooser<T> chooser) {
126 final HorizontalLayout layout = new HorizontalLayout(chooser.asVaadinComponent());
127 layout.setSizeFull();
128 layout.setMargin(false);
129 layout.setSpacing(false);
130 layout.setExpandRatio(chooser.asVaadinComponent(), 1f);
131
132 Optional.ofNullable(datasourceDefinition)
133 .map(DatasourceDefinition::getPreview).ifPresent(preview -> {
134 final ConfiguredActionbarDefinitionnition.html#ConfiguredActionbarDefinition">ConfiguredActionbarDefinition actionbarDefinition = new ConfiguredActionbarDefinition();
135 final ActionbarPresenter<T> actionbarPresenter = chooser.getComponentProvider().newInstance(ActionbarPresenter.class, actionbarDefinition, new HashMap<>());
136 final ActionbarView<T> previewBar = chooser.getComponentProvider().newInstance(ActionbarView.class, actionbarPresenter, actionbarDefinition);
137 previewBar.setHeight(SAME_AS_GRID_HEIGHT);
138 layout.addComponent(previewBar);
139 layout.setExpandRatio(previewBar, 0f);
140 });
141 return layout;
142 }
143
144 private <T, C extends Chooser<T>> Component prepareFooter(ChooserDefinition<T, C> definition, Chooser<T> chooser) {
145 final UiComponentProvider chooserComponentProvider = chooser.getComponentProvider();
146 List<ActionExecution<T>> actionExecutions = ActionExecution.<T>fromDefinitions(definition.getActions().values(), chooserComponentProvider).collect(toList());
147 EditorActionBar<T> editorActionBar = chooser.create(EditorActionBar.class, chooserComponentProvider.getComponent(AvailabilityChecker.class));
148 LayoutDefinition<?> layoutDefinition = definition.getFooterLayout();
149 editorActionBar
150 .withActions(actionExecutions)
151 .withLayoutDefinition(layoutDefinition);
152 return editorActionBar.layout();
153 }
154
155 public <T, C extends Chooser<T>> OnItemChosen<T> openChooser(ChooserDefinition<T, C> definition) {
156 return this.openChooser(definition, null);
157 }
158
159 public static class OnItemChosen<T> extends CompletableFuture<ChooseResult<T>> {
160 private String action;
161
162 public OnItemChosen<T> action(String action) {
163 this.action = action;
164 return this;
165 }
166
167 public String getAction() {
168 return action;
169 }
170 }
171
172 public interface ChooseHandler {
173 void action(String name);
174 }
175
176
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180
181
182 @AllArgsConstructor(access = AccessLevel.PACKAGE)
183 public static class ChooseResult<T> {
184 private boolean isChosen;
185 private T choice;
186
187 public static <T> ChooseResult<T> ofChoice(T choice) {
188 return new ChooseResult<>(choice != null, choice);
189 }
190
191 public boolean isChosen() {
192 return this.isChosen;
193 }
194
195 public Optional<T> getChoice() {
196 return Optional.ofNullable(choice);
197 }
198 }
199 }