Ejemplo n.º 1
0
void AccessibilityMenuList::didUpdateActiveOption(int optionIndex)
{
    Ref<Document> document(m_renderer->document());
    AXObjectCache* cache = document->axObjectCache();

    const auto& childObjects = children();
    if (!childObjects.isEmpty()) {
        ASSERT(childObjects.size() == 1);
        ASSERT(childObjects[0]->isMenuListPopup());

        // We might be calling this method in situations where the renderers for list items
        // associated to the menu list have not been created (e.g. they might be rendered
        // in the UI process, as it's the case in the GTK+ port, which uses GtkMenuItem).
        // So, we need to make sure that the accessibility popup object has some children
        // before asking it to update its active option, or it will read invalid memory.
        // You can reproduce the issue in the GTK+ port by removing this check and running
        // accessibility/insert-selected-option-into-select-causes-crash.html (will crash).
        int popupChildrenSize = static_cast<int>(childObjects[0]->children().size());
        if (childObjects[0]->isMenuListPopup() && optionIndex >= 0 && optionIndex < popupChildrenSize) {
            if (AccessibilityMenuListPopup* popup = toAccessibilityMenuListPopup(childObjects[0].get()))
                popup->didUpdateActiveOption(optionIndex);
        }
    }

    cache->postNotification(this, &document.get(), AXObjectCache::AXMenuListValueChanged, TargetElement, PostSynchronously);
}
void AccessibilityMenuList::didUpdateActiveOption(int optionIndex)
{
    Ref<Document> document(m_renderer->document());
    AXObjectCache* cache = document->axObjectCache();

    const AccessibilityChildrenVector& childObjects = children();
    if (!childObjects.isEmpty()) {
        ASSERT(childObjects.size() == 1);
        ASSERT(childObjects[0]->isMenuListPopup());

        if (childObjects[0]->isMenuListPopup()) {
            if (AccessibilityMenuListPopup* popup = toAccessibilityMenuListPopup(childObjects[0].get()))
                popup->didUpdateActiveOption(optionIndex);
        }
    }

    cache->postNotification(this, &document.get(), AXObjectCache::AXMenuListValueChanged, TargetElement, PostSynchronously);
}