/**
* Removes presenter from user meals
*
* @param meal
*/
private void removeMyMealPresenter(MealModel meal) {
try {
// remove also from presenters
for (int i = 0; i < myMealPresenters.size(); i++) {
MealLinkPresenter presenter = myMealPresenters.get(i);
if (presenter != null && presenter.meal.getId() == meal.getId()) {
presenter.stop();
myMealPresenters.remove(presenter);
}
}
// if no meals -> show empty presenter
if (myMealPresenters.size() == 0) {
if (emptyPresenter != null) {
emptyPresenter.stop();
}
emptyPresenter =
new EmptyPresenter(
rpcService,
eventBus,
(EmptyDisplay) GWT.create(EmptyView.class),
AppController.Lang.NoMeals());
emptyPresenter.run(display.getMyMealsContainer());
}
} catch (Exception e) {
Motiver.showException(e);
}
}
/** Unbinds all the presenters */
private void unbindPresenters() {
try {
if (emptyPresenter != null) {
emptyPresenter.stop();
}
if (presenters != null) {
for (int i = 0; i < presenters.size(); i++) {
try {
final Presenter presenter = presenters.get(i);
if (presenter != null) {
presenter.stop();
}
} catch (Exception e) {
Motiver.showException(e);
}
}
presenters = new ArrayList<Presenter>();
}
} catch (Exception e) {
Motiver.showException(e);
}
}
@Override
public void onStop() {
if (emptyPresenter != null) {
emptyPresenter.stop();
}
if (emptyPresenter2 != null) {
emptyPresenter2.stop();
}
// stop show more
if (showMorePresenter != null) {
showMorePresenter.stop();
}
if (showMorePresenter2 != null) {
showMorePresenter2.stop();
}
// stop presenters
unbindPresenters(0);
}
/**
* Unbinds all the presenters
*
* @param target : which presenters all unbinded, 0=all, 1=mymeals, 2=most popular, 3=search
* results
*/
private void unbindPresenters(int target) {
// my meals
if (myMealPresenters != null && (target == 0 || target == 1)) {
if (emptyPresenter != null) {
emptyPresenter.stop();
}
if (showMorePresenter != null) {
showMorePresenter.stop();
}
for (int i = 0; i < myMealPresenters.size(); i++) {
final Presenter presenter = myMealPresenters.get(i);
if (presenter != null) {
presenter.stop();
}
}
myMealPresenters.clear();
}
// most popular
if (mostPopularPresenters != null && (target == 0 || target == 2)) {
if (emptyPresenter2 != null) {
emptyPresenter2.stop();
}
if (showMorePresenter2 != null) {
showMorePresenter2.stop();
}
for (int i = 0; i < mostPopularPresenters.size(); i++) {
final Presenter presenter = mostPopularPresenters.get(i);
if (presenter != null) {
presenter.stop();
}
}
mostPopularPresenters.clear();
}
}
/** Loads meals */
void loadMyMeals(final int index) {
if (emptyPresenter != null) {
emptyPresenter.stop();
}
// stop show more
if (showMorePresenter != null) {
showMorePresenter.stop();
}
// stop presenters if first items
if (index == 0) {
unbindPresenters(1);
}
// add empty presenter
emptyPresenter =
new EmptyPresenter(
rpcService,
eventBus,
(EmptyDisplay) GWT.create(EmptyView.class),
EmptyPresenter.EMPTY_LOADING);
emptyPresenter.run(display.getMyMealsContainer());
// get meals
Motiver.setNextCallCacheable(true);
final Request req =
rpcService.getMeals(
index,
new MyAsyncCallback<List<MealModel>>() {
@Override
public void onSuccess(List<MealModel> result) {
showMyMeals(index, result);
}
});
addRequest(req);
}
/**
* Adds new presenter to view
*
* @param presenter
*/
protected void addNewPresenter(Presenter presenter) {
try {
// remove emptypresenter if present
if (emptyPresenter != null) {
emptyPresenter.stop();
emptyPresenter = null;
}
presenters.add(presenter);
presenter.run(display.getBodyContainer());
} catch (Exception e) {
Motiver.showException(e);
}
}
/**
* Adds new presenter to view (most popular meals)
*
* @param presenter
*/
protected void addNewMostPopularPresenter(MealLinkPresenter presenter) {
try {
// remove emptypresenter if present
if (emptyPresenter2 != null) {
emptyPresenter2.stop();
emptyPresenter2 = null;
}
mostPopularPresenters.add(presenter);
presenter.run(display.getMostPopularContainer());
} catch (Exception e) {
Motiver.showException(e);
}
}
/**
* Shows user's meals
*
* @param list : MealModels
*/
private void showMyMeals(final int index, List<MealModel> list) {
try {
if (emptyPresenter != null) {
emptyPresenter.stop();
}
// stop show more
if (showMorePresenter != null) {
showMorePresenter.stop();
}
// stop presenters if first items
if (index == 0) {
unbindPresenters(1);
}
// if no meals
if (index == 0 && list.size() == 0) {
emptyPresenter =
new EmptyPresenter(
rpcService,
eventBus,
(EmptyDisplay) GWT.create(EmptyView.class),
AppController.Lang.NoMeals());
emptyPresenter.run(display.getMyMealsContainer());
} else {
for (final MealModel m : list) {
// if null value -> list was limited -> add showMorePresenter
if (m == null) {
showMorePresenter =
new ShowMorePresenter(
rpcService,
eventBus,
(ShowMoreDisplay) GWT.create(ShowMoreView.class),
new ShowMoreHandler() {
@Override
public void showMore() {
loadMyMeals(index + Constants.LIMIT_MEALS);
}
});
showMorePresenter.run(display.getMyMealsContainer());
} else {
// new presenter
final MealLinkPresenter wp =
new MealLinkPresenter(
rpcService,
eventBus,
(MealLinkDisplay) GWT.create(MealLinkView.class),
m,
quickSelectionEnabled);
addNewMyMealPresenter(wp);
}
}
}
} catch (Exception e) {
Motiver.showException(e);
}
}
