htmlinputelement.cpp

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            }
        } else if (charCode == ' ') {
            switch (inputType()) {
                case BUTTON:
                case CHECKBOX:
                case FILE:
                case IMAGE:
                case RESET:
                case SUBMIT:
                case RADIO:
                    // Prevent scrolling down the page.
                    evt->setDefaultHandled();
                    return;
                default:
                    break;
            }
        }

        if (clickElement) {
            dispatchSimulatedClick(evt);
            evt->setDefaultHandled();
            return;
        }
    }

    if (evt->type() == eventNames().keydownEvent && evt->isKeyboardEvent()) {
        String key = static_cast<KeyboardEvent*>(evt)->keyIdentifier();

        if (key == "U+0020") {
            switch (inputType()) {
                case BUTTON:
                case CHECKBOX:
                case FILE:
                case IMAGE:
                case RESET:
                case SUBMIT:
                case RADIO:
                    setActive(true, true);
                    // No setDefaultHandled() - IE dispatches a keypress in this case.
                    return;
                default:
                    break;
            }
        }

        if (inputType() == RADIO && (key == "Up" || key == "Down" || key == "Left" || key == "Right")) {
            // Left and up mean "previous radio button".
            // Right and down mean "next radio button".
            // Tested in WinIE, and even for RTL, left still means previous radio button (and so moves
            // to the right).  Seems strange, but we'll match it.
            bool forward = (key == "Down" || key == "Right");
            
            // We can only stay within the form's children if the form hasn't been demoted to a leaf because
            // of malformed HTML.
            Node* n = this;
            while ((n = (forward ? n->traverseNextNode() : n->traversePreviousNode()))) {
                // Once we encounter a form element, we know we're through.
                if (n->hasTagName(formTag))
                    break;
                    
                // Look for more radio buttons.
                if (n->hasTagName(inputTag)) {
                    HTMLInputElement* elt = static_cast<HTMLInputElement*>(n);
                    if (elt->form() != form())
                        break;
                    if (n->hasTagName(inputTag)) {
                        HTMLInputElement* inputElt = static_cast<HTMLInputElement*>(n);
                        if (inputElt->inputType() == RADIO && inputElt->name() == name() && inputElt->isFocusable()) {
                            inputElt->setChecked(true);
                            document()->setFocusedNode(inputElt);
                            inputElt->dispatchSimulatedClick(evt, false, false);
                            evt->setDefaultHandled();
                            break;
                        }
                    }
                }
            }
        }
    }

    if (evt->type() == eventNames().keyupEvent && evt->isKeyboardEvent()) {
        bool clickElement = false;

        String key = static_cast<KeyboardEvent*>(evt)->keyIdentifier();

        if (key == "U+0020") {
            switch (inputType()) {
                case BUTTON:
                case CHECKBOX:
                case FILE:
                case IMAGE:
                case RESET:
                case SUBMIT:
                    // Simulate mouse click for spacebar for these types of elements.
                    // The AppKit already does this for some, but not all, of them.
                    clickElement = true;
                    break;
                case RADIO:
                    // If an unselected radio is tabbed into (because the entire group has nothing
                    // checked, or because of some explicit .focus() call), then allow space to check it.
                    if (!checked())
                        clickElement = true;
                    break;
                case HIDDEN:
                case ISINDEX:
                case PASSWORD:
                case RANGE:
                case SEARCH:
                case TEXT:
                    break;
            }
        }

        if (clickElement) {
            if (active())
                dispatchSimulatedClick(evt);
            evt->setDefaultHandled();
            return;
        }        
    }

    if (clickDefaultFormButton) {
        if (isSearchField()) {
            addSearchResult();
            onSearch();
        }
        // Fire onChange for text fields.
        RenderObject* r = renderer();
        if (r && r->isTextField() && toRenderTextControl(r)->isEdited()) {
            onChange();
            // Refetch the renderer since arbitrary JS code run during onchange can do anything, including destroying it.
            r = renderer();
            if (r && r->isTextField())
                toRenderTextControl(r)->setEdited(false);
        }
        // Form may never have been present, or may have been destroyed by the change event.
        if (form())
            form()->submitClick(evt);
        evt->setDefaultHandled();
        return;
    }

    if (evt->isBeforeTextInsertedEvent())
        InputElement::handleBeforeTextInsertedEvent(m_data, document(), evt);

    if (isTextField() && renderer() && (evt->isMouseEvent() || evt->isDragEvent() || evt->isWheelEvent() || evt->type() == eventNames().blurEvent || evt->type() == eventNames().focusEvent))
        static_cast<RenderTextControlSingleLine*>(renderer())->forwardEvent(evt);

    if (inputType() == RANGE && renderer()) {
        RenderSlider* slider = static_cast<RenderSlider*>(renderer());
        if (evt->isMouseEvent() && evt->type() == eventNames().mousedownEvent && static_cast<MouseEvent*>(evt)->button() == LeftButton) {
            MouseEvent* mEvt = static_cast<MouseEvent*>(evt);
            if (!slider->mouseEventIsInThumb(mEvt)) {
                IntPoint eventOffset(mEvt->offsetX(), mEvt->offsetY());
                if (mEvt->target() != this) // Does this ever happen now? Was added for <video> controls
                    eventOffset = roundedIntPoint(renderer()->absoluteToLocal(FloatPoint(mEvt->pageX(), mEvt->pageY()), false, true));
                slider->setValueForPosition(slider->positionForOffset(eventOffset));
            }
        }
        if (evt->isMouseEvent() || evt->isDragEvent() || evt->isWheelEvent())
            slider->forwardEvent(evt);
    }
}

bool HTMLInputElement::isURLAttribute(Attribute *attr) const
{
    return (attr->name() == srcAttr);
}

String HTMLInputElement::defaultValue() const
{
    return getAttribute(valueAttr);
}

void HTMLInputElement::setDefaultValue(const String &value)
{
    setAttribute(valueAttr, value);
}

bool HTMLInputElement::defaultChecked() const
{
    return !getAttribute(checkedAttr).isNull();
}

void HTMLInputElement::setDefaultChecked(bool defaultChecked)
{
    setAttribute(checkedAttr, defaultChecked ? "" : 0);
}

void HTMLInputElement::setDefaultName(const AtomicString& name)
{
    m_data.setName(name);
}

String HTMLInputElement::accept() const
{
    return getAttribute(acceptAttr);
}

void HTMLInputElement::setAccept(const String &value)
{
    setAttribute(acceptAttr, value);
}

String HTMLInputElement::accessKey() const
{
    return getAttribute(accesskeyAttr);
}

void HTMLInputElement::setAccessKey(const String &value)
{
    setAttribute(accesskeyAttr, value);
}

String HTMLInputElement::align() const
{
    return getAttribute(alignAttr);
}

void HTMLInputElement::setAlign(const String &value)
{
    setAttribute(alignAttr, value);
}

String HTMLInputElement::alt() const
{
    return getAttribute(altAttr);
}

void HTMLInputElement::setAlt(const String &value)
{
    setAttribute(altAttr, value);
}

int HTMLInputElement::maxLength() const
{
    return m_data.maxLength();
}

void HTMLInputElement::setMaxLength(int _maxLength)
{
    setAttribute(maxlengthAttr, String::number(_maxLength));
}

bool HTMLInputElement::multiple() const
{
    return !getAttribute(multipleAttr).isNull();
}

void HTMLInputElement::setMultiple(bool multiple)
{
    setAttribute(multipleAttr, multiple ? "" : 0);
}
    
void HTMLInputElement::setSize(unsigned _size)
{
    setAttribute(sizeAttr, String::number(_size));
}

KURL HTMLInputElement::src() const
{
    return document()->completeURL(getAttribute(srcAttr));
}

void HTMLInputElement::setSrc(const String &value)
{
    setAttribute(srcAttr, value);
}

String HTMLInputElement::useMap() const
{
    return getAttribute(usemapAttr);
}

void HTMLInputElement::setUseMap(const String &value)
{
    setAttribute(usemapAttr, value);
}

void HTMLInputElement::setAutofilled(bool b)
{
    if (b == m_autofilled)
        return;
        
    m_autofilled = b;
    setChanged();
}

FileList* HTMLInputElement::files()
{
    if (inputType() != FILE)
        return 0;
    return m_fileList.get();
}

String HTMLInputElement::constrainValue(const String& proposedValue) const
{
    return InputElement::constrainValue(m_data, proposedValue, m_data.maxLength());
}

bool HTMLInputElement::needsActivationCallback()
{
    return inputType() == PASSWORD || m_autocomplete == Off;
}

void HTMLInputElement::registerForActivationCallbackIfNeeded()
{
    if (needsActivationCallback())
        document()->registerForDocumentActivationCallbacks(this);
}

void HTMLInputElement::unregisterForActivationCallbackIfNeeded()
{
    if (!needsActivationCallback())
        document()->unregisterForDocumentActivationCallbacks(this);
}

void HTMLInputElement::cacheSelection(int start, int end)
{
    m_data.setCachedSelectionStart(start);
    m_data.setCachedSelectionEnd(end);
}

void HTMLInputElement::addSearchResult()
{
    ASSERT(isSearchField());
    if (renderer())
        static_cast<RenderTextControlSingleLine*>(renderer())->addSearchResult();
}

void HTMLInputElement::onSearch()
{
    ASSERT(isSearchField());
    if (renderer())
        static_cast<RenderTextControlSingleLine*>(renderer())->stopSearchEventTimer();
    dispatchEventForType(eventNames().searchEvent, true, false);
}

VisibleSelection HTMLInputElement::selection() const
{
   if (!renderer() || !isTextField() || m_data.cachedSelectionStart() == -1 || m_data.cachedSelectionEnd() == -1)
        return VisibleSelection();
   return toRenderTextControl(renderer())->selection(m_data.cachedSelectionStart(), m_data.cachedSelectionEnd());
}

void HTMLInputElement::documentDidBecomeActive()
{
    ASSERT(needsActivationCallback());
    reset();
}

void HTMLInputElement::willMoveToNewOwnerDocument()
{
    // Always unregister for cache callbacks when leaving a document, even if we would otherwise like to be registered
    if (needsActivationCallback())
        document()->unregisterForDocumentActivationCallbacks(this);
        
    document()->checkedRadioButtons().removeButton(this);
    
    HTMLFormControlElementWithState::willMoveToNewOwnerDocument();
}

void HTMLInputElement::didMoveToNewOwnerDocument()
{
    registerForActivationCallbackIfNeeded();
        
    HTMLFormControlElementWithState::didMoveToNewOwnerDocument();
}
    
void HTMLInputElement::addSubresourceAttributeURLs(ListHashSet<KURL>& urls) const
{
    HTMLFormControlElementWithState::addSubresourceAttributeURLs(urls);

    addSubresourceURL(urls, src());
}

bool HTMLInputElement::willValidate() const
{
    // FIXME: This shall check for new WF2 input types too
    return HTMLFormControlElementWithState::willValidate() && inputType() != HIDDEN &&
           inputType() != BUTTON && inputType() != RESET;
}

bool HTMLInputElement::placeholderShouldBeVisible() const
{
    return m_data.placeholderShouldBeVisible();
}

} // namespace