C++ WMLPageState::storeVariable方法代码示例

void WMLInputElement::initialize()
{
    String nameVariable = formControlName();
    String variableValue;
    WMLPageState* pageSate = wmlPageStateForDocument(document()); 
    ASSERT(pageSate);
    if (!nameVariable.isEmpty())
        variableValue = pageSate->getVariable(nameVariable);

    if (variableValue.isEmpty() || !isConformedToInputMask(variableValue)) {
        String val = value();
        if (isConformedToInputMask(val))
            variableValue = val;
        else
            variableValue = "";
 
        pageSate->storeVariable(nameVariable, variableValue);
    }
    setValue(variableValue);
 
    if (!hasAttribute(WMLNames::emptyokAttr)) {
        if (m_formatMask.isEmpty() || 
            // check if the format codes is just "*f"
           (m_formatMask.length() == 2 && m_formatMask[0] == '*' && formatCodes().find(m_formatMask[1]) != notFound))
            m_isEmptyOk = true;
    }
}

void WMLTimerElement::timerFired(Timer<WMLTimerElement>*)
{
    if (!m_card)
        return;

    WMLPageState* pageState = wmlPageStateForDocument(document());
    if (!pageState)
        return;

    String value = this->value();

    // When the timer expires, set the name varialbe of timer to '0'
    if (!m_name.isEmpty()) {
        value = "0";
        pageState->storeVariable(m_name, value);
    }

    WMLIntrinsicEventType eventType = WMLIntrinsicEventOnTimer;
    WMLIntrinsicEventHandler* eventHandler = m_card->eventHandler();

    bool hasIntrinsicEvent = false;
    if (eventHandler && eventHandler->hasIntrinsicEvent(eventType))
        hasIntrinsicEvent = true;
    else if (m_card->templateElement()) {
        eventHandler = m_card->templateElement()->eventHandler();
        if (eventHandler && eventHandler->hasIntrinsicEvent(eventType))
            hasIntrinsicEvent = true;
    }

    if (hasIntrinsicEvent)
        eventHandler->triggerIntrinsicEvent(eventType);
}

void WMLSelectElement::updateVariables()
{
    WMLPageState* pageState = wmlPageStateForDocument(document());
    if (!pageState)
        return;

    String name = this->name();
    String iname = this->iname();
    if (iname.isEmpty() && name.isEmpty())
        return;

    String nameString;
    String inameString;

    unsigned optionIndex = 0;
    const Vector<Element*>& items = m_data.listItems(this);

    for (unsigned i = 0; i < items.size(); ++i) {
        OptionElement* optionElement = toOptionElement(items[i]);
        if (!optionElement)
            continue;

        ++optionIndex;
        if (!optionElement->selected())
            continue;

        if (!nameString.isEmpty())
            nameString += ";";

        if (!inameString.isEmpty())
            inameString += ";";

        nameString += optionElement->value();
        inameString += String::number(optionIndex);
    }

    if (!name.isEmpty())
        pageState->storeVariable(name, nameString);

    if (!iname.isEmpty())
        pageState->storeVariable(iname, inameString);
}

void WMLSelectElement::initializeVariables()
{
    ASSERT(!m_defaultOptionIndices.isEmpty());

    WMLPageState* pageState = wmlPageStateForDocument(document());
    if (!pageState)
        return;

    const Vector<Element*>& items = m_data.listItems(this);
    if (items.isEmpty())
        return;

    // Spec: If the 'iname' attribute is specified, then the named variable is set with the default option index. 
    String iname = this->iname();
    if (!iname.isEmpty())
        pageState->storeVariable(iname, optionIndicesToString());

    String name = this->name();
    if (name.isEmpty())
        return;

    if (m_data.multiple()) {
        // Spec: If the 'name' attribute is specified and the select is a multiple-choice element,
        // then for each index greater than zero, the value of the 'value' attribute on the option
        // element at the index is added to the name variable. 
        pageState->storeVariable(name, optionIndicesToValueString());
        return;
    }

    // Spec: If the 'name' attribute is specified and the select is a single-choice element,
    // then the named variable is set with the value of the 'value' attribute on the option
    // element at the default option index. 
    unsigned optionIndex = m_defaultOptionIndices.first();
    ASSERT(optionIndex >= 1);

    int listIndex = optionToListIndex(optionIndex - 1);
    ASSERT(listIndex >= 0);
    ASSERT(listIndex < (int) items.size());

    if (OptionElement* optionElement = toOptionElement(items[listIndex]))
        pageState->storeVariable(name, optionElement->value());
}