C++ (Cpp) HTMLFormControlElement::canBeSuccessfulSubmitButton示例

示例#1

void HTMLFormElement::submitImplicitly(Event* event, bool fromImplicitSubmissionTrigger)
{
    int submissionTriggerCount = 0;
    bool seenDefaultButton = false;
    for (unsigned i = 0; i < m_associatedElements.size(); ++i) {
        FormAssociatedElement* formAssociatedElement = m_associatedElements[i];
        if (!formAssociatedElement->isFormControlElement())
            continue;
        HTMLFormControlElement* control = toHTMLFormControlElement(formAssociatedElement);
        if (!seenDefaultButton && control->canBeSuccessfulSubmitButton()) {
            if (fromImplicitSubmissionTrigger)
                seenDefaultButton = true;
            if (control->isSuccessfulSubmitButton()) {
                if (control->renderer()) {
                    control->dispatchSimulatedClick(event);
                    return;
                }
            } else if (fromImplicitSubmissionTrigger) {
                // Default (submit) button is not activated; no implicit submission.
                return;
            }
        } else if (control->canTriggerImplicitSubmission()) {
            ++submissionTriggerCount;
        }
    }
    if (fromImplicitSubmissionTrigger && submissionTriggerCount == 1)
        prepareForSubmission(event);
}