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 uk.ac.ncl.openlab.intake24.client.survey.prompts; import com.google.gwt.core.client.GWT; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.safehtml.shared.SafeHtml; 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.HasHorizontalAlignment; import com.google.gwt.user.client.ui.HasVerticalAlignment; import org.workcraft.gwt.shared.client.Callback1; import org.workcraft.gwt.shared.client.Function1; import uk.ac.ncl.openlab.intake24.client.survey.Meal; import uk.ac.ncl.openlab.intake24.client.survey.Prompt; import uk.ac.ncl.openlab.intake24.client.survey.SurveyStageInterface; import uk.ac.ncl.openlab.intake24.client.survey.prompts.messages.PromptMessages; import uk.ac.ncl.openlab.intake24.client.ui.WidgetFactory; public class MealCompletePrompt implements Prompt<Meal, MealOperation> { private final Meal meal; private final PromptMessages messages = GWT.create(PromptMessages.class); public MealCompletePrompt(final Meal meal) { this.meal = meal; } @Override public SurveyStageInterface getInterface(final Callback1<MealOperation> onComplete, final Callback1<Function1<Meal, Meal>> onIntermediateStateChange) { final SafeHtml promptText = SafeHtmlUtils.fromSafeConstant( messages.mealComplete_promptText(SafeHtmlUtils.htmlEscape(meal.name.toLowerCase()))); Button contButton = WidgetFactory.createButton(messages.mealComplete_continueButtonLabel(), new ClickHandler() { @Override public void onClick(ClickEvent event) { onComplete.call(MealOperation.noChange); } }); Button addButton = WidgetFactory.createButton(messages.mealComplete_editMealButtonLabel(), new ClickHandler() { @Override public void onClick(ClickEvent event) { onComplete.call(MealOperation.editFoodsRequest(false)); } }); Button timeButton = WidgetFactory.createButton(messages.mealComplete_editTimeButtonLabel(), new ClickHandler() { @Override public void onClick(ClickEvent event) { onComplete.call(MealOperation.editTimeRequest); } }); Button deleteButton = WidgetFactory.createRedButton(messages.mealComplete_deleteButtonLabel(), "mealCompleteDeleteButton", new ClickHandler() { @Override public void onClick(ClickEvent event) { onComplete.call(MealOperation.deleteRequest(true)); } }); FlowPanel contents = new FlowPanel(); contents.add(WidgetFactory.createPromptPanel(promptText)); contents.add(WidgetFactory.createButtonsPanel(contButton, addButton, timeButton, deleteButton)); return new SurveyStageInterface.Aligned(contents, HasHorizontalAlignment.ALIGN_LEFT, HasVerticalAlignment.ALIGN_TOP, SurveyStageInterface.DEFAULT_OPTIONS, MealCompletePrompt.class.getSimpleName()); } @Override public String toString() { return "Meal complete prompt"; } }