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org.teamapps.ux.component.workspacelayout.LayoutApplyer Maven / Gradle / Ivy
/*-
* ========================LICENSE_START=================================
* TeamApps
* ---
* Copyright (C) 2014 - 2023 TeamApps.org
* ---
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* =========================LICENSE_END==================================
*/
package org.teamapps.ux.component.workspacelayout;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.teamapps.dto.UiWorkSpaceLayoutItem;
import org.teamapps.dto.UiWorkSpaceLayoutSplitItem;
import org.teamapps.dto.UiWorkSpaceLayoutViewGroupItem;
import org.teamapps.ux.component.splitpane.SplitSizePolicy;
import org.teamapps.ux.component.workspacelayout.definition.LayoutItemDefinition;
import org.teamapps.ux.component.workspacelayout.definition.SplitPaneDefinition;
import org.teamapps.ux.component.workspacelayout.definition.ViewGroupDefinition;
import java.util.*;
import java.util.stream.Collectors;
class LayoutApplyer {
private static final Logger LOGGER = LoggerFactory.getLogger(LayoutApplyer.class);
private final WorkSpaceLayout workSpaceLayout;
private Map descriptorItemById;
private Set descriptorViewNames;
private Map itemsById;
private Map viewsByName;
public LayoutApplyer(WorkSpaceLayout workSpaceLayout) {
this.workSpaceLayout = workSpaceLayout;
}
public Map applyFromUiLayoutDescriptor(
Map currentRootItemsByWindowId,
Map newRootDescriptorsByWindowId
) {
Map wrappedDescriptors = newRootDescriptorsByWindowId.entrySet().stream()
.collect(Collectors.toMap(entry -> entry.getKey(), entry -> createWrapperFromUi(entry.getValue())));
return apply(currentRootItemsByWindowId, wrappedDescriptors);
}
public Map applyFromLayoutDefinition(
Map currentRootItemsByWindowId,
Map newRootDescriptorsByWindowId
) {
Map wrappedDescriptors = newRootDescriptorsByWindowId.entrySet().stream()
.collect(Collectors.toMap(entry -> entry.getKey(), entry -> createWrapperFromDefinition(entry.getValue())));
return apply(currentRootItemsByWindowId, wrappedDescriptors);
}
public Map apply(
Map currentRootItemsByWindowId,
Map newRootDescriptorsByWindowId
) {
this.reset();
newRootDescriptorsByWindowId.forEach((windowId, layoutDescriptor) -> this.putToDescriptorDictionaries(layoutDescriptor));
currentRootItemsByWindowId.forEach((windowId, currentRootItem) -> this.putToServerItemDictionaries(currentRootItem));
currentRootItemsByWindowId.forEach((windowId, currentRootItem) -> {
LayoutItemWrapper newLayoutDescriptor = newRootDescriptorsByWindowId.get(windowId);
this.cleanupUnknownServerItems(currentRootItem, newLayoutDescriptor, null);
});
Map newRootItemsByWindowId = newRootDescriptorsByWindowId.entrySet().stream()
.collect(Collectors.toMap(e -> e.getKey(), e -> this.addNewStructure(e.getValue(), null, false)));
return newRootItemsByWindowId;
}
private void reset() {
descriptorItemById = new HashMap<>();
descriptorViewNames = new HashSet<>();
itemsById = new HashMap<>();
viewsByName = new HashMap<>();
}
private void putToDescriptorDictionaries(LayoutItemWrapper descriptorItem) {
this.descriptorItemById.put(descriptorItem.getId(), descriptorItem);
if (descriptorItem instanceof ViewGroupWrapper) {
ViewGroupWrapper viewGroupItem = (ViewGroupWrapper) descriptorItem;
this.descriptorViewNames.addAll(viewGroupItem.getViewNames());
} else if (descriptorItem instanceof SplitPaneWrapper) {
SplitPaneWrapper splitItem = (SplitPaneWrapper) descriptorItem;
if (splitItem.getFirstChild() != null) {
this.putToDescriptorDictionaries(splitItem.getFirstChild());
}
if (splitItem.getLastChild() != null) {
this.putToDescriptorDictionaries(splitItem.getLastChild());
}
}
}
private void putToServerItemDictionaries(WorkSpaceLayoutItem item) {
if (item == null) {
return;
}
this.itemsById.put(item.getId(), item);
if (item instanceof WorkSpaceLayoutViewGroup) {
((WorkSpaceLayoutViewGroup) item).getViews().forEach(view -> this.viewsByName.put(view.getId(), view));
} else if (item instanceof WorkSpaceLayoutSplitPane) {
WorkSpaceLayoutItem firstChild = ((WorkSpaceLayoutSplitPane) item).getFirstChild();
if (firstChild != null) {
this.putToServerItemDictionaries(firstChild);
}
WorkSpaceLayoutItem lastChild = ((WorkSpaceLayoutSplitPane) item).getLastChild();
if (lastChild != null) {
this.putToServerItemDictionaries(lastChild);
}
}
}
public void cleanupUnknownServerItems(WorkSpaceLayoutItem item, LayoutItemWrapper descriptorItem, WorkSpaceLayoutSplitPane parent) {
// descriptorItem may be null for recursive executions of this method!
if (descriptorItem != null && Objects.equals(descriptorItem.getId(), item.getId())) {
if (item instanceof WorkSpaceLayoutSplitPane) {
WorkSpaceLayoutSplitPane splitPane = (WorkSpaceLayoutSplitPane) item;
WorkSpaceLayoutItem firstChild = splitPane.getFirstChild();
if (firstChild != null) {
this.cleanupUnknownServerItems(firstChild, ((SplitPaneWrapper) descriptorItem).getFirstChild(), splitPane);
}
WorkSpaceLayoutItem lastChild = splitPane.getLastChild();
if (lastChild != null) {
this.cleanupUnknownServerItems(lastChild, ((SplitPaneWrapper) descriptorItem).getLastChild(), splitPane);
}
} else if (item instanceof WorkSpaceLayoutViewGroup) {
removeUnknownViews((WorkSpaceLayoutViewGroup) item, ((ViewGroupWrapper) descriptorItem).getViewNames());
}
} else {
LayoutItemWrapper correspondingDescriptorItem = this.descriptorItemById.get(item.getId());
if (correspondingDescriptorItem != null) {
this.cleanupUnknownServerItems(item, correspondingDescriptorItem, null);
} else {
// not referenced in the descriptor! however, descendants might well be referenced in the descriptor!
if (item instanceof WorkSpaceLayoutViewGroup) {
this.removeUnknownViews((WorkSpaceLayoutViewGroup) item, Collections.emptyList());
} else if (item instanceof WorkSpaceLayoutSplitPane) {
this.cleanupUnknownServerItems(((WorkSpaceLayoutSplitPane) item).getFirstChild(), null, (WorkSpaceLayoutSplitPane) item);
this.cleanupUnknownServerItems(((WorkSpaceLayoutSplitPane) item).getLastChild(), null, (WorkSpaceLayoutSplitPane) item);
}
}
if (parent != null) {
if (item == parent.getFirstChild()) {
parent.setFirstChildSilently(null);
} else {
parent.setLastChildSilently(null);
}
} // otherwise this is the root item... nothing to do, since it will be exchanged, anyway.
}
}
private void removeUnknownViews(WorkSpaceLayoutViewGroup viewGroup, List descriptorViewNames) {
List viewsToBeRemoved = viewGroup.getViews().stream()
.filter(view -> !descriptorViewNames.contains(view.getId()))
.collect(Collectors.toList());
viewsToBeRemoved.forEach(viewGroup::handleViewRemovedByClient);
}
private WorkSpaceLayoutItem addNewStructure(LayoutItemWrapper descriptor, WorkSpaceLayoutSplitPane parent, boolean firstChild) {
if (descriptor == null) {
return null;
}
WorkSpaceLayoutItem serverSideItem = this.itemsById.get(descriptor.getId());
WorkSpaceLayoutItem item;
if (serverSideItem != null) {
item = serverSideItem;
if (descriptor instanceof SplitPaneWrapper) {
SplitPaneWrapper splitDescriptor = (SplitPaneWrapper) descriptor;
WorkSpaceLayoutSplitPane splitPaneItem = (WorkSpaceLayoutSplitPane) serverSideItem;
this.addNewStructure(splitDescriptor.getFirstChild(), splitPaneItem, true);
this.addNewStructure(splitDescriptor.getLastChild(), splitPaneItem, false);
splitPaneItem.setSizePolicySilently(SplitSizePolicy.valueOf(splitDescriptor.getSizePolicy().name()));
splitPaneItem.setReferenceChildSizeSilently(splitDescriptor.getReferenceChildSize());
} else if (descriptor instanceof ViewGroupWrapper) {
ViewGroupWrapper viewGroupDescriptor = (ViewGroupWrapper) descriptor;
WorkSpaceLayoutViewGroup viewGroup = (WorkSpaceLayoutViewGroup) serverSideItem;
addViews(viewGroup, viewGroupDescriptor);
viewGroup.setPanelStateSilently(ViewGroupPanelState.valueOf(viewGroupDescriptor.getPanelState().name()));
}
} else { // this is a descriptor for a new item
item = this.createTreeItemFromLayoutDescriptor(descriptor);
}
if (parent != null) {
if (firstChild) {
parent.setFirstChildSilently(item);
} else {
parent.setLastChildSilently(item);
}
}
return item;
}
private WorkSpaceLayoutItem createTreeItemFromLayoutDescriptor(LayoutItemWrapper descriptor) {
if (descriptor instanceof ViewGroupWrapper) {
ViewGroupWrapper viewGroupWrapper = (ViewGroupWrapper) descriptor;
var tabPanelItem = new WorkSpaceLayoutViewGroup(descriptor.getId(), viewGroupWrapper.isPersistent(), workSpaceLayout);
this.addViews(tabPanelItem, viewGroupWrapper);
return tabPanelItem;
} else {
SplitPaneWrapper splitDescriptor = (SplitPaneWrapper) descriptor;
var splitPaneItem = new WorkSpaceLayoutSplitPane(
descriptor.getId(),
SplitDirection.valueOf(splitDescriptor.getSplitDirection().name()),
SplitSizePolicy.valueOf(splitDescriptor.getSizePolicy().name()),
splitDescriptor.getReferenceChildSize(),
workSpaceLayout
);
splitPaneItem.setFirstChildSilently(this.addNewStructure(splitDescriptor.getFirstChild(), splitPaneItem, true));
splitPaneItem.setLastChildSilently(this.addNewStructure(splitDescriptor.getLastChild(), splitPaneItem, false));
return splitPaneItem;
}
}
private void addViews(WorkSpaceLayoutViewGroup viewGroup, ViewGroupWrapper viewGroupDescriptor) {
for (int i = 0; i < viewGroupDescriptor.getViewNames().size(); i++) {
String viewName = viewGroupDescriptor.getViewNames().get(i);
boolean selected = Objects.equals(viewName, viewGroupDescriptor.getSelectedViewName()) || viewGroupDescriptor.getSelectedViewName() == null && i == 0;
WorkSpaceLayoutView view = viewsByName.get(viewName);
if (view != null) {
viewGroup.addViewSilently(view, i, selected);
}
}
}
private static LayoutItemWrapper createWrapperFromUi(UiWorkSpaceLayoutItem child) {
if (child instanceof UiWorkSpaceLayoutSplitItem) {
return new UiWorkSpaceLayoutSplitItemWrapper(((UiWorkSpaceLayoutSplitItem) child));
} else if (child instanceof UiWorkSpaceLayoutViewGroupItem) {
return new UiWorkSpaceLayoutViewGroupItemWrapper(((UiWorkSpaceLayoutViewGroupItem) child));
} else {
throw new IllegalArgumentException("Unknown layout item type " + child.getClass().getCanonicalName());
}
}
private static LayoutApplyer.LayoutItemWrapper createWrapperFromDefinition(LayoutItemDefinition child) {
if (child instanceof SplitPaneDefinition) {
return new LayoutSplitPaneDefinitionWrapper((SplitPaneDefinition) child);
} else if (child instanceof ViewGroupDefinition) {
return new LayoutViewGroupDefinitionWrapper(((ViewGroupDefinition) child));
} else {
throw new IllegalArgumentException("Unknown layout item type " + child.getClass().getCanonicalName());
}
}
private interface LayoutItemWrapper {
String getId();
}
private interface SplitPaneWrapper extends LayoutItemWrapper {
SplitDirection getSplitDirection();
SplitSizePolicy getSizePolicy();
float getReferenceChildSize();
LayoutItemWrapper getFirstChild();
LayoutItemWrapper getLastChild();
}
private interface ViewGroupWrapper extends LayoutItemWrapper {
List getViewNames();
String getSelectedViewName();
boolean isPersistent();
ViewGroupPanelState getPanelState();
}
private static class UiWorkSpaceLayoutSplitItemWrapper implements SplitPaneWrapper {
private final UiWorkSpaceLayoutSplitItem item;
public UiWorkSpaceLayoutSplitItemWrapper(UiWorkSpaceLayoutSplitItem item) {
this.item = item;
}
@Override
public String getId() {
return item.getId();
}
@Override
public SplitDirection getSplitDirection() {
return SplitDirection.valueOf(item.getSplitDirection().name());
}
@Override
public SplitSizePolicy getSizePolicy() {
return SplitSizePolicy.valueOf(item.getSizePolicy().name());
}
@Override
public float getReferenceChildSize() {
return item.getReferenceChildSize();
}
@Override
public LayoutItemWrapper getFirstChild() {
return createWrapperFromUi(item.getFirstChild());
}
@Override
public LayoutItemWrapper getLastChild() {
return createWrapperFromUi(item.getLastChild());
}
}
private static class UiWorkSpaceLayoutViewGroupItemWrapper implements ViewGroupWrapper {
private final UiWorkSpaceLayoutViewGroupItem item;
public UiWorkSpaceLayoutViewGroupItemWrapper(UiWorkSpaceLayoutViewGroupItem item) {
this.item = item;
}
@Override
public List getViewNames() {
return item.getViewNames();
}
@Override
public String getSelectedViewName() {
return item.getSelectedViewName();
}
@Override
public boolean isPersistent() {
return item.getPersistent();
}
@Override
public ViewGroupPanelState getPanelState() {
return ViewGroupPanelState.valueOf(item.getPanelState().name());
}
@Override
public String getId() {
return item.getId();
}
}
private static class LayoutSplitPaneDefinitionWrapper implements SplitPaneWrapper {
private final SplitPaneDefinition item;
public LayoutSplitPaneDefinitionWrapper(SplitPaneDefinition item) {
this.item = item;
}
@Override
public String getId() {
return item.getId();
}
@Override
public SplitDirection getSplitDirection() {
return item.getSplitDirection();
}
@Override
public SplitSizePolicy getSizePolicy() {
return item.getSizePolicy();
}
@Override
public float getReferenceChildSize() {
return item.getReferenceChildSize();
}
@Override
public LayoutItemWrapper getFirstChild() {
return createWrapperFromDefinition(item.getFirstChild());
}
@Override
public LayoutItemWrapper getLastChild() {
return createWrapperFromDefinition(item.getLastChild());
}
}
private static class LayoutViewGroupDefinitionWrapper implements ViewGroupWrapper {
private final ViewGroupDefinition item;
public LayoutViewGroupDefinitionWrapper(ViewGroupDefinition item) {
this.item = item;
}
@Override
public String getId() {
return item.getId();
}
@Override
public List getViewNames() {
return item.getViews().stream()
.map(v -> v.getId())
.collect(Collectors.toList());
}
@Override
public String getSelectedViewName() {
return item.getSelectedView() != null ? item.getSelectedView().getId() : null;
}
@Override
public boolean isPersistent() {
return item.isPersistent();
}
@Override
public ViewGroupPanelState getPanelState() {
return ViewGroupPanelState.valueOf(item.getPanelState().name());
}
}
}
