gwt.material.design.client.base.helper.ScrollHelper Java Examples

protected void checkProperties(MaterialPanel target, MaterialPanel container) {
    final boolean[] firedCallback = {false};
    final String LINEAR_EASING = "linear";
    Functions.Func CALLBACK = () -> {
        firedCallback[0] = true;
    };

    ScrollHelper scrollHelper = new ScrollHelper();

    scrollHelper.setEasing(LINEAR_EASING);
    scrollHelper.setCompleteCallback(CALLBACK);
    scrollHelper.setContainer(container);
    scrollHelper.scrollTo(target);
    checkOffsetPositioning(scrollHelper);

    assertEquals(LINEAR_EASING, scrollHelper.getEasing());
    assertEquals(CALLBACK, scrollHelper.getCompleteCallback());
    assertEquals(container.getElement(), scrollHelper.getContainerElement().asElement());
}
 

protected void load() {
    for (Widget widget : getChildren()) {
        lookForChildren(widget);
    }

    for (QuestionItem question : questions) {
        question.addValueChangeHandler(valueChangeEvent -> {
            int index = questions.indexOf(question);
            if (index + 1 < questions.size()) {
                Widget target = questions.get(index + 1);
                new ScrollHelper().scrollTo(target);
            }

            if (!answeredQuestions.contains(question)) {
                answeredQuestions.add(question);
                questionProgress.updateProgress(answeredQuestions);
            }
        });
    }

    if (questions != null) {
        questionProgress.setQuestions(questions);
        questionProgress.updateProgress(new ArrayList<>());
    }

}
 

@Override
public boolean validate() {
    boolean valid = true;

    for (QuestionItem question : questions) {
        if (!question.validate()) {
            valid = false;
        }
    }

    for (QuestionItem question1 : questions) {
        if (!question1.validate()) {
            new ScrollHelper().scrollTo(question1);
            break;
        }
    }

    return valid;
}
 

/**
 * If the message tooltip is our of vertical viewport then we update the position to be at the bottom
 */
protected void showStatus() {
    if (position == null) {
        if (!new ScrollHelper().isInViewPort(textObject.getElement())) {
            position = Position.TOP;
        } else {
            position = Position.LEFT;
        }
    }

    updatePosition(position);
    textObject.getElement().getStyle().setVisibility(Style.Visibility.VISIBLE);
}
 

protected void checkOffsetPositioning(ScrollHelper scrollHelper) {
    scrollHelper.setOffsetPosition(OffsetPosition.TOP);
    assertEquals(OffsetPosition.TOP, scrollHelper.getOffsetPosition());
    scrollHelper.setOffsetPosition(OffsetPosition.MIDDLE);
    assertEquals(OffsetPosition.MIDDLE, scrollHelper.getOffsetPosition());
    scrollHelper.setOffsetPosition(OffsetPosition.BOTTOM);
    assertEquals(OffsetPosition.BOTTOM, scrollHelper.getOffsetPosition());
}
 

public void testScrollOnTarget() {
    // UiBinder
    // Given
    MaterialPanel container = getWidget();
    MaterialPanel target = (MaterialPanel) container.getWidget(0);
    target.setMarginTop(2000);
    target.setPaddingTop(0);

    double targetOffset = $(target.getElement()).offset().top;
    ScrollHelper scrollHelper = new ScrollHelper();
    scrollHelper.setCompleteCallback(() -> assertEquals(2000.0, targetOffset));

    scrollHelper.scrollTo(target);
}
 

public void testDefaultContainer() {
    MaterialPanel target = new MaterialPanel();
    ScrollHelper scrollHelper = new ScrollHelper();
    scrollHelper.scrollTo(target);

    assertEquals($("html, body").asElement(), scrollHelper.getContainerElement().asElement());
}
 

public void testScrollToOffset() {
    final double OFFSET_TARGET = 3000.0;

    ScrollHelper scrollHelper = new ScrollHelper();
    scrollHelper.scrollTo(OFFSET_TARGET);

    assertEquals(OFFSET_TARGET, scrollHelper.getOffset());
}
 

public MaterialPathAnimator() {
    this.scrollHelper = new ScrollHelper();
}
 

public ScrollHelper getScrollHelper() {
    return scrollHelper;
}