uk.ac.ncl.openlab.intake24.client.survey.prompts.SaveHomeRecipePrompt.java Source code

Introduction

Here is the source code for uk.ac.ncl.openlab.intake24.client.survey.prompts.SaveHomeRecipePrompt.java

Source

/*
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 uk.ac.ncl.openlab.intake24.client.survey.prompts;

import com.google.gwt.core.shared.GWT;
import com.google.gwt.event.dom.client.*;
import com.google.gwt.safehtml.shared.SafeHtml;
import com.google.gwt.safehtml.shared.SafeHtmlUtils;
import com.google.gwt.user.client.ui.*;
import org.workcraft.gwt.shared.client.Callback1;
import org.workcraft.gwt.shared.client.Function1;
import org.workcraft.gwt.shared.client.Pair;
import uk.ac.ncl.openlab.intake24.client.survey.*;
import uk.ac.ncl.openlab.intake24.client.survey.prompts.messages.PromptMessages;
import uk.ac.ncl.openlab.intake24.client.ui.WidgetFactory;

public class SaveHomeRecipePrompt implements Prompt<Pair<FoodEntry, Meal>, MealOperation> {
    PromptMessages messages = GWT.create(PromptMessages.class);

    private final FoodEntry food;

    private final Function1<Meal, Meal> saveRecipeFunction;

    private final Function1<Meal, Meal> dontSaveRecipeFunction;

    private final TextBox recipeName;

    public SaveHomeRecipePrompt(final RecipeManager recipeManager, final Pair<FoodEntry, Meal> pair) {
        this.food = pair.left;
        this.recipeName = new TextBox();

        recipeName.setText(pair.left.description());

        this.saveRecipeFunction = new Function1<Meal, Meal>() {
            @Override
            public Meal apply(Meal argument) {

                TemplateFood mainFood = (TemplateFood) pair.left;

                Recipe recipe = new Recipe(
                        mainFood.withFlag(Recipe.IS_SAVED_FLAG).minusCustomDataField(Recipe.SERVINGS_NUMBER_KEY)
                                .withDescription(recipeName.getText()),
                        Meal.linkedFoods(pair.right.foods, pair.left));
                recipeManager.saveRecipe(recipe);

                return argument.updateFood(argument.foodIndex(food),
                        mainFood.withFlag(Recipe.IS_SAVED_FLAG).withDescription(recipeName.getText()));
            }
        };

        this.dontSaveRecipeFunction = new Function1<Meal, Meal>() {
            @Override
            public Meal apply(Meal argument) {
                return argument.updateFood(argument.foodIndex(food), food.withFlag(Recipe.IS_SAVED_FLAG));
            }
        };
    }

    @Override
    public SurveyStageInterface getInterface(final Callback1<MealOperation> onComplete,
            final Callback1<Function1<Pair<FoodEntry, Meal>, Pair<FoodEntry, Meal>>> onIntermediateStateChange) {
        SafeHtml promptText = SafeHtmlUtils
                .fromSafeConstant(messages.homeRecipe_savePromptText(SafeHtmlUtils.htmlEscape(food.description())));

        HorizontalPanel recipeNamePanel = new HorizontalPanel();
        recipeNamePanel.setSpacing(5);
        recipeNamePanel.setVerticalAlignment(HasVerticalAlignment.ALIGN_MIDDLE);

        recipeName.addClickHandler(new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
                recipeName.selectAll();
            }
        });

        recipeName.addKeyUpHandler(new KeyUpHandler() {
            @Override
            public void onKeyUp(KeyUpEvent event) {
                if (event.getNativeKeyCode() == KeyCodes.KEY_ENTER) {
                    if (!recipeName.getText().isEmpty())
                        onComplete.call(MealOperation.update(saveRecipeFunction));
                }
            }
        });

        recipeNamePanel.add(new Label(messages.homeRecipe_recipeNameLabel()));
        recipeNamePanel.add(recipeName);

        Button yesButton = WidgetFactory.createGreenButton(messages.yesNoQuestion_defaultYesLabel(),
                "saveRecipeYesButton", new ClickHandler() {
                    @Override
                    public void onClick(ClickEvent event) {
                        if (!recipeName.getText().isEmpty())
                            onComplete.call(MealOperation.update(saveRecipeFunction));
                    }
                });

        Button noButton = WidgetFactory.createButton(messages.yesNoQuestion_defaultNoLabel(), new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
                onComplete.call(MealOperation.update(dontSaveRecipeFunction));
            }
        });

        FlowPanel contents = new FlowPanel();
        contents.add(WidgetFactory.createPromptPanel(promptText));
        contents.add(recipeNamePanel);
        contents.add(WidgetFactory.createButtonsPanel(yesButton, noButton));

        return new SurveyStageInterface.Aligned(contents, HasHorizontalAlignment.ALIGN_LEFT,
                HasVerticalAlignment.ALIGN_TOP, SurveyStageInterface.DEFAULT_OPTIONS,
                SaveHomeRecipePrompt.class.getSimpleName());
    }
}