String AccessibilitySVGElement::helpText() const
{
// According to the SVG Accessibility API Mappings spec, the order of priority is:
// 1. aria-describedby
// 2. a direct child desc element
// 3. for a use element, the accessible description calculated for the re-used content
// 4. for text container elements, the text content, if not used for the name
// 5. a direct child title element that provides a tooltip, if not used for the name
String describedBy = ariaDescribedByAttribute();
if (!describedBy.isEmpty())
return describedBy;
auto descriptionElements = childrenOfType<SVGDescElement>(*element());
if (auto descriptionChild = childElementWithMatchingLanguage(descriptionElements))
return descriptionChild->textContent();
if (is<SVGUseElement>(element())) {
AccessibilityObject* target = targetForUseElement();
if (target)
return target->helpText();
}
String description = accessibilityDescription();
if (m_renderer->isSVGText()) {
AccessibilityTextUnderElementMode mode;
String text = textUnderElement(mode);
if (!text.isEmpty() && text != description)
return text;
}
auto titleElements = childrenOfType<SVGTitleElement>(*element());
if (auto titleChild = childElementWithMatchingLanguage(titleElements)) {
if (titleChild->textContent() != description)
return titleChild->textContent();
}
return String();
}
void AccessibilitySearchFieldCancelButton::accessibilityText(Vector<AccessibilityText>& textOrder)
{
textOrder.append(AccessibilityText(accessibilityDescription(), AlternativeText));
}
