Java tutorial
/* This file is part of Intake24. Crown copyright, 2012, 2013, 2014. This software is licensed under the Open Government Licence 3.0: http://www.nationalarchives.gov.uk/doc/open-government-licence/ */ package net.scran24.user.client.survey.prompts; import static org.workcraft.gwt.shared.client.CollectionUtils.map; import net.scran24.common.client.WidgetFactory; import net.scran24.user.client.ShepherdTour; import net.scran24.user.client.survey.SurveyStageInterface; import net.scran24.user.client.survey.flat.Prompt; import net.scran24.user.client.survey.flat.PromptUtil; import net.scran24.user.client.survey.flat.SameAsBefore; import net.scran24.user.client.survey.portionsize.experimental.MilkInHotDrinkPortionSizeScript; import net.scran24.user.client.survey.portionsize.experimental.PortionSize; import net.scran24.user.client.survey.prompts.messages.HelpMessages; import net.scran24.user.client.survey.prompts.messages.PromptMessages; import net.scran24.user.shared.EncodedFood; import net.scran24.user.shared.FoodEntry; import net.scran24.user.shared.FoodLink; import net.scran24.user.shared.Meal; import net.scran24.user.shared.SpecialData; import org.pcollections.client.PVector; import org.pcollections.client.TreePVector; import org.workcraft.gwt.shared.client.Callback1; import org.workcraft.gwt.shared.client.Function1; import org.workcraft.gwt.shared.client.Pair; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.safehtml.shared.SafeHtmlUtils; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.FlowPanel; import com.google.gwt.user.client.ui.HTMLPanel; import com.google.gwt.user.client.ui.HasHorizontalAlignment; import com.google.gwt.user.client.ui.HasVerticalAlignment; import com.google.gwt.user.client.ui.Panel; public class SameAsBeforePrompt implements Prompt<Pair<FoodEntry, Meal>, MealOperation> { private static final PromptMessages messages = PromptMessages.Util.getInstance(); private static final HelpMessages helpMessages = HelpMessages.Util.getInstance(); private final static PVector<ShepherdTour.Step> tour = TreePVector.<ShepherdTour.Step>empty() .plus(new ShepherdTour.Step("protionSize", "#intake24-sab-portion-size", helpMessages.sameAsBefore_portionSizeTitle(), helpMessages.sameAsBefore_portionSizeDescription())) .plus(new ShepherdTour.Step("leftovers", "#intake24-sab-leftovers", helpMessages.sameAsBefore_leftoversTitle(), helpMessages.sameAsBefore_leftoversDescription())) .plus(new ShepherdTour.Step("assocFoods", "#intake24-sab-assoc-foods", helpMessages.sameAsBefore_assocFoodsTitle(), helpMessages.sameAsBefore_assocFoodsDescription())) .plus(new ShepherdTour.Step("yesButton", "#intake24-sab-yes-button", helpMessages.sameAsBefore_yesButtonTitle(), helpMessages.sameAsBefore_yesButtonDescription())) .plus(new ShepherdTour.Step("noButton", "#intake24-sab-no-button", helpMessages.sameAsBefore_noButtonTitle(), helpMessages.sameAsBefore_noButtonDescription(), "top right", "bottom right")); private final EncodedFood food; private final SameAsBefore asBefore; private final int foodIndex; public SameAsBeforePrompt(final Pair<FoodEntry, Meal> pair, final int foodIndex, SameAsBefore asBefore) { this.foodIndex = foodIndex; this.food = pair.left.asEncoded(); this.asBefore = asBefore; } @Override public String toString() { return "Same as before prompt"; } @Override public SurveyStageInterface getInterface(final Callback1<MealOperation> onComplete, Callback1<Function1<Pair<FoodEntry, Meal>, Pair<FoodEntry, Meal>>> updateIntermediateState) { final FlowPanel content = new FlowPanel(); PromptUtil.addBackLink(content); final Panel promptPanel = WidgetFactory.createPromptPanel( SafeHtmlUtils.fromSafeConstant(messages .sameAsBefore_promptText(SafeHtmlUtils.htmlEscape(food.description().toLowerCase()))), ShepherdTour.createTourButton(tour, SameAsBeforePrompt.class.getSimpleName())); content.add(promptPanel); final EncodedFood mainFoodAsBefore = asBefore.mainFood; final PVector<FoodEntry> assocFoodsAsBefore = asBefore.linkedFoods; final double leftoversWeight = mainFoodAsBefore.completedPortionSize().leftoversWeight(); final double servingWeight = mainFoodAsBefore.completedPortionSize().servingWeight(); final int leftoversPercent = (int) (leftoversWeight * 100.0 / servingWeight); final int leftoversPercentRounded = (leftoversPercent + 4) / 5 * 5; final String portionSize = messages.sameAsBefore_servingSize( Integer.toString((int) servingWeight) + (mainFoodAsBefore.isDrink() ? " ml" : " g")); final String leftovers = (leftoversWeight < 0.01) ? (mainFoodAsBefore.isDrink() ? messages.sameAsBefore_noLeftoversDrink() : messages.sameAsBefore_noLeftoversFood()) : messages.sameAsBefore_leftovers(leftoversPercentRounded + "%"); HTMLPanel portionSizePanel = new HTMLPanel(portionSize); portionSizePanel.getElement().setId("intake24-sab-portion-size"); content.add(portionSizePanel); HTMLPanel leftoversPanel = new HTMLPanel(leftovers); leftoversPanel.getElement().setId("intake24-sab-leftovers"); content.add(leftoversPanel); String assocFoodsHTML = messages.sameAsBefore_hadItWith(); if (!assocFoodsAsBefore.isEmpty()) assocFoodsHTML += "<ul>"; for (FoodEntry f : assocFoodsAsBefore) { EncodedFood assocFood = f.asEncoded(); String assocFoodDescription; if (assocFood.isInCategory(SpecialData.FOOD_CODE_MILK_IN_HOT_DRINK)) assocFoodDescription = SafeHtmlUtils.htmlEscape(assocFood.description()) + " (" + SafeHtmlUtils.htmlEscape(MilkInHotDrinkPortionSizeScript.amounts.get( Integer.parseInt(assocFood.completedPortionSize().data.get("milkPartIndex"))).name) + ")"; else assocFoodDescription = SafeHtmlUtils.htmlEscape(assocFood.description()) + " (" + Integer.toString((int) assocFood.completedPortionSize().servingWeight()) + (assocFood.isDrink() ? " ml" : " g") + ")"; assocFoodsHTML += "<li>" + assocFoodDescription + "</li>"; } HTMLPanel assocFoodsPanel; if (!assocFoodsAsBefore.isEmpty()) { assocFoodsHTML += "</ul>"; assocFoodsPanel = new HTMLPanel(assocFoodsHTML); } else { assocFoodsPanel = new HTMLPanel(messages.sameAsBefore_noAddedFoods()); } assocFoodsPanel.getElement().setId("intake24-sab-assoc-foods"); content.add(assocFoodsPanel); Button yes = WidgetFactory.createButton(messages.sameAsBefore_confirmButtonLabel(), new ClickHandler() { @Override public void onClick(ClickEvent event) { onComplete.call(MealOperation.update(new Function1<Meal, Meal>() { @Override public Meal apply(final Meal meal) { PVector<FoodEntry> updatedFoods = meal.foods .with(foodIndex, food.withPortionSize( PortionSize.complete(mainFoodAsBefore.completedPortionSize())) .disableAllPrompts()) .plusAll(map(assocFoodsAsBefore, new Function1<FoodEntry, FoodEntry>() { @Override public FoodEntry apply(FoodEntry assocFood) { return assocFood.relink(FoodLink.newLinked(food.link.id)); } })); return meal.withFoods(updatedFoods); } })); } }); yes.getElement().setId("intake24-sab-yes-button"); Button no = WidgetFactory.createButton(messages.sameAsBefore_rejectButtonLabel(), new ClickHandler() { @Override public void onClick(ClickEvent event) { onComplete .call(MealOperation.updateEncodedFood(foodIndex, new Function1<EncodedFood, EncodedFood>() { @Override public EncodedFood apply(EncodedFood argument) { return argument.markNotSameAsBefore(); } })); } }); no.getElement().setId("intake24-sab-no-button"); content.add(WidgetFactory.createButtonsPanel(yes, no)); ShepherdTour.makeShepherdTarget(promptPanel, portionSizePanel, leftoversPanel, assocFoodsPanel, yes, no); return new SurveyStageInterface.Aligned(content, HasHorizontalAlignment.ALIGN_LEFT, HasVerticalAlignment.ALIGN_TOP, SurveyStageInterface.DEFAULT_OPTIONS); } }