/**
* Unlink all contribution items from the given model menu.
*
* @param renderer the renderer that is holding the links
* @param menu the model menu whose children should have its items unlinked from their
* corresponding contribution items
*/
private void unlink(MenuManagerRenderer renderer, MMenu menu) {
for (MMenuElement menuElement : menu.getChildren()) {
if (menuElement instanceof MOpaqueMenuItem) {
MOpaqueMenuItem opaqueMenuItem = (MOpaqueMenuItem) menuElement;
Object item = opaqueMenuItem.getOpaqueItem();
if (item instanceof IContributionItem) {
renderer.clearModelToContribution(opaqueMenuItem, (IContributionItem) item);
opaqueMenuItem.setOpaqueItem(null);
}
} else if (menuElement instanceof MOpaqueMenuSeparator) {
MOpaqueMenuSeparator opaqueMenuItem = (MOpaqueMenuSeparator) menuElement;
Object item = opaqueMenuItem.getOpaqueItem();
if (item instanceof IContributionItem) {
renderer.clearModelToContribution(opaqueMenuItem, (IContributionItem) item);
opaqueMenuItem.setOpaqueItem(null);
}
} else if (menuElement instanceof MMenu) {
MMenu subMenu = (MMenu) menuElement;
unlink(renderer, subMenu);
MenuManager manager = renderer.getManager(subMenu);
if (manager != null) {
renderer.clearModelToManager(subMenu, manager);
}
} else {
IContributionItem contribution = renderer.getContribution(menuElement);
if (contribution != null) {
renderer.clearModelToContribution(menuElement, contribution);
}
}
}
}
/**
* @param menuManager
* @param menuModel
*/
public void reconcileManagerToModel(MenuManager menuManager, MMenu menuModel) {
List<MMenuElement> modelChildren = menuModel.getChildren();
HashSet<MOpaqueMenuItem> oldModelItems = new HashSet<MOpaqueMenuItem>();
HashSet<MOpaqueMenu> oldMenus = new HashSet<MOpaqueMenu>();
HashSet<MOpaqueMenuSeparator> oldSeps = new HashSet<MOpaqueMenuSeparator>();
for (MMenuElement itemModel : modelChildren) {
if (itemModel instanceof MOpaqueMenuSeparator) {
oldSeps.add((MOpaqueMenuSeparator) itemModel);
} else if (itemModel instanceof MOpaqueMenuItem) {
oldModelItems.add((MOpaqueMenuItem) itemModel);
} else if (itemModel instanceof MOpaqueMenu) {
oldMenus.add((MOpaqueMenu) itemModel);
}
}
IContributionItem[] items = menuManager.getItems();
for (int src = 0, dest = 0; src < items.length; src++, dest++) {
IContributionItem item = items[src];
if (item instanceof MenuManager) {
MenuManager childManager = (MenuManager) item;
MMenu childModel = getMenuModel(childManager);
if (childModel == null) {
MMenu legacyModel = MenuFactoryImpl.eINSTANCE.createOpaqueMenu();
legacyModel.setElementId(childManager.getId());
legacyModel.setVisible(childManager.isVisible());
linkModelToManager(legacyModel, childManager);
modelChildren.add(dest, legacyModel);
reconcileManagerToModel(childManager, legacyModel);
} else {
if (childModel instanceof MOpaqueMenu) {
oldMenus.remove(childModel);
}
if (modelChildren.size() > dest) {
if (modelChildren.get(dest) != childModel) {
modelChildren.remove(childModel);
modelChildren.add(dest, childModel);
}
} else {
modelChildren.add(childModel);
}
}
} else if (item.isSeparator() || item.isGroupMarker()) {
MMenuElement menuElement = getMenuElement(item);
if (menuElement == null) {
MOpaqueMenuSeparator legacySep = MenuFactoryImpl.eINSTANCE.createOpaqueMenuSeparator();
legacySep.setElementId(item.getId());
legacySep.setVisible(item.isVisible());
legacySep.setOpaqueItem(item);
linkModelToContribution(legacySep, item);
modelChildren.add(dest, legacySep);
} else if (menuElement instanceof MOpaqueMenuSeparator) {
MOpaqueMenuSeparator legacySep = (MOpaqueMenuSeparator) menuElement;
oldSeps.remove(legacySep);
if (modelChildren.size() > dest) {
if (modelChildren.get(dest) != legacySep) {
modelChildren.remove(legacySep);
modelChildren.add(dest, legacySep);
}
} else {
modelChildren.add(legacySep);
}
}
} else {
MMenuElement menuElement = getMenuElement(item);
if (menuElement == null) {
MOpaqueMenuItem legacyItem = MenuFactoryImpl.eINSTANCE.createOpaqueMenuItem();
legacyItem.setElementId(item.getId());
legacyItem.setVisible(item.isVisible());
legacyItem.setOpaqueItem(item);
linkModelToContribution(legacyItem, item);
modelChildren.add(dest, legacyItem);
} else if (menuElement instanceof MOpaqueMenuItem) {
MOpaqueMenuItem legacyItem = (MOpaqueMenuItem) menuElement;
oldModelItems.remove(legacyItem);
if (modelChildren.size() > dest) {
if (modelChildren.get(dest) != legacyItem) {
modelChildren.remove(legacyItem);
modelChildren.add(dest, legacyItem);
}
} else {
modelChildren.add(legacyItem);
}
}
}
}
if (!oldModelItems.isEmpty()) {
modelChildren.removeAll(oldModelItems);
for (MOpaqueMenuItem model : oldModelItems) {
clearModelToContribution(model, (IContributionItem) model.getOpaqueItem());
}
}
if (!oldMenus.isEmpty()) {
modelChildren.removeAll(oldMenus);
for (MOpaqueMenu oldMenu : oldMenus) {
MenuManager oldManager = getManager(oldMenu);
clearModelToManager(oldMenu, oldManager);
}
}
if (!oldSeps.isEmpty()) {
modelChildren.removeAll(oldSeps);
for (MOpaqueMenuSeparator model : oldSeps) {
clearModelToContribution(model, (IContributionItem) model.getOpaqueItem());
}
}
}