uk.ac.ncl.openlab.intake24.client.survey.scheme.MultipleChoiceCheckboxQuestion.java Source code

Introduction

Here is the source code for uk.ac.ncl.openlab.intake24.client.survey.scheme.MultipleChoiceCheckboxQuestion.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.scheme;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.FocusEvent;
import com.google.gwt.event.dom.client.FocusHandler;
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.CheckBox;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.TextBox;
import org.pcollections.PVector;
import org.workcraft.gwt.shared.client.Callback1;
import org.workcraft.gwt.shared.client.Callback2;
import org.workcraft.gwt.shared.client.Option;
import uk.ac.ncl.openlab.intake24.client.survey.SimpleSurveyStageInterface;
import uk.ac.ncl.openlab.intake24.client.survey.Survey;
import uk.ac.ncl.openlab.intake24.client.survey.SurveyStage;
import uk.ac.ncl.openlab.intake24.client.ui.WidgetFactory;

import java.util.ArrayList;

public class MultipleChoiceCheckboxQuestion implements SurveyStage<Survey> {
    final private SafeHtml questionText;
    final private PVector<String> options;
    final private String acceptText;
    final private String dataField;
    final private Survey state;
    final private Option<String> otherOptionName;

    private CheckBox otherOption;
    private TextBox otherBox;

    public MultipleChoiceCheckboxQuestion(final Survey state, final SafeHtml questionText, final String acceptText,
            PVector<String> options, String dataField, Option<String> otherOptionName) {
        this.state = state;
        this.questionText = questionText;
        this.acceptText = acceptText;
        this.options = options;
        this.dataField = dataField;
        this.otherOptionName = otherOptionName;
    }

    @Override
    public SimpleSurveyStageInterface getInterface(final Callback1<Survey> onComplete,
            Callback2<Survey, Boolean> onIntermediateStateChange) {
        final FlowPanel content = new FlowPanel();
        content.addStyleName("intake24-multiple-choice-question");
        content.addStyleName("intake24-survey-content-container");

        content.add(WidgetFactory.createPromptPanel(questionText));

        FlowPanel checkboxesDiv = new FlowPanel();
        checkboxesDiv.addStyleName("scran24-ready-meals-checkboxes-block");

        final ArrayList<CheckBox> checkBoxes = new ArrayList<CheckBox>();

        for (String option : options) {
            FlowPanel rowDiv = new FlowPanel();
            CheckBox checkBox = new CheckBox(SafeHtmlUtils.htmlEscape(option));
            checkBox.setFormValue(option);
            checkBox.addStyleName("scran24-ready-meals-checkbox");
            checkBoxes.add(checkBox);
            rowDiv.add(checkBox);
            checkboxesDiv.add(rowDiv);
        }

        if (!otherOptionName.isEmpty()) {
            FlowPanel otherPanel = new FlowPanel();
            otherOption = new CheckBox(otherOptionName.getOrDie() + ": ");
            otherPanel.add(otherOption);
            otherBox = new TextBox();
            otherPanel.add(otherBox);
            checkboxesDiv.add(otherPanel);

            otherBox.addFocusHandler(new FocusHandler() {
                @Override
                public void onFocus(FocusEvent event) {
                    otherOption.setValue(true);
                }
            });
        }

        content.add(checkboxesDiv);

        Button accept = WidgetFactory.createGreenButton(acceptText, "multipleChoiceCheckboxContinueButton",
                new ClickHandler() {
                    @Override
                    public void onClick(ClickEvent event) {

                        StringBuilder value = new StringBuilder();
                        boolean first = true;

                        for (CheckBox checkBox : checkBoxes)
                            if (checkBox.getValue()) {
                                if (first)
                                    first = false;
                                else
                                    value.append(", ");

                                value.append(checkBox.getFormValue());
                            }

                        if (!otherOptionName.isEmpty()) {
                            if (otherOption.getValue()) {
                                if (!first)
                                    value.append(", ");
                                value.append(otherBox.getText());
                            }
                        }

                        onComplete.call(state.withData(dataField, value.toString()));
                    }
                });

        content.add(checkboxesDiv);
        content.add(accept);

        return new SimpleSurveyStageInterface(content, MultipleChoiceCheckboxQuestion.class.getSimpleName());
    }
}