htmlinputelement.cpp

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        case FILE:
        case HIDDEN:
        case IMAGE:
        case ISINDEX:
        case RANGE:
        case RESET:
        case SEARCH:
        case SUBMIT:
        case TEXT:
            setValue(state);
            break;
        case CHECKBOX:
        case RADIO:
            setChecked(state == "on");
            break;
        case PASSWORD:
            break;
    }
}

bool HTMLInputElement::canStartSelection() const
{
    if (!isTextField())
        return false;
    return HTMLFormControlElementWithState::canStartSelection();
}

bool HTMLInputElement::canHaveSelection() const
{
    return isTextField();
}

int HTMLInputElement::selectionStart() const
{
    if (!isTextField())
        return 0;
    if (document()->focusedNode() != this && m_data.cachedSelectionStart() != -1)
        return m_data.cachedSelectionStart();
    if (!renderer())
        return 0;
    return toRenderTextControl(renderer())->selectionStart();
}

int HTMLInputElement::selectionEnd() const
{
    if (!isTextField())
        return 0;
    if (document()->focusedNode() != this && m_data.cachedSelectionEnd() != -1)
        return m_data.cachedSelectionEnd();
    if (!renderer())
        return 0;
    return toRenderTextControl(renderer())->selectionEnd();
}

void HTMLInputElement::setSelectionStart(int start)
{
    if (!isTextField())
        return;
    if (!renderer())
        return;
    toRenderTextControl(renderer())->setSelectionStart(start);
}

void HTMLInputElement::setSelectionEnd(int end)
{
    if (!isTextField())
        return;
    if (!renderer())
        return;
    toRenderTextControl(renderer())->setSelectionEnd(end);
}

void HTMLInputElement::select()
{
    if (!isTextField())
        return;
    if (!renderer())
        return;
    toRenderTextControl(renderer())->select();
}

void HTMLInputElement::setSelectionRange(int start, int end)
{
    InputElement::updateSelectionRange(m_data, start, end);
}

void HTMLInputElement::accessKeyAction(bool sendToAnyElement)
{
    switch (inputType()) {
        case BUTTON:
        case CHECKBOX:
        case FILE:
        case IMAGE:
        case RADIO:
        case RANGE:
        case RESET:
        case SUBMIT:
            focus(false);
            // send the mouse button events iff the caller specified sendToAnyElement
            dispatchSimulatedClick(0, sendToAnyElement);
            break;
        case HIDDEN:
            // a no-op for this type
            break;
        case ISINDEX:
        case PASSWORD:
        case SEARCH:
        case TEXT:
            // should never restore previous selection here
            focus(false);
            break;
    }
}

bool HTMLInputElement::mapToEntry(const QualifiedName& attrName, MappedAttributeEntry& result) const
{
    if (((attrName == heightAttr || attrName == widthAttr) && respectHeightAndWidthAttrs()) ||
        attrName == vspaceAttr ||
        attrName == hspaceAttr) {
        result = eUniversal;
        return false;
    } 

    if (attrName == alignAttr) {
        if (inputType() == IMAGE) {
            // Share with <img> since the alignment behavior is the same.
            result = eReplaced;
            return false;
        }
    }

    return HTMLElement::mapToEntry(attrName, result);
}

void HTMLInputElement::parseMappedAttribute(MappedAttribute *attr)
{
    if (attr->name() == nameAttr) {
        checkedRadioButtons(this).removeButton(this);
        m_data.setName(attr->value());
        checkedRadioButtons(this).addButton(this);
    } else if (attr->name() == autocompleteAttr) {
        if (equalIgnoringCase(attr->value(), "off")) {
            m_autocomplete = Off;
            registerForActivationCallbackIfNeeded();
        } else {
            if (m_autocomplete == Off)
                unregisterForActivationCallbackIfNeeded();
            if (attr->isEmpty())
                m_autocomplete = Uninitialized;
            else
                m_autocomplete = On;
        }
    } else if (attr->name() == typeAttr) {
        setInputType(attr->value());
    } else if (attr->name() == valueAttr) {
        // We only need to setChanged if the form is looking at the default value right now.
        if (m_data.value().isNull())
            setChanged();
        setValueMatchesRenderer(false);
    } else if (attr->name() == checkedAttr) {
        m_defaultChecked = !attr->isNull();
        if (m_useDefaultChecked) {
            setChecked(m_defaultChecked);
            m_useDefaultChecked = true;
        }
    } else if (attr->name() == maxlengthAttr)
        InputElement::parseMaxLengthAttribute(m_data, attr);
    else if (attr->name() == sizeAttr)
        InputElement::parseSizeAttribute(m_data, attr);
    else if (attr->name() == altAttr) {
        if (renderer() && inputType() == IMAGE)
            toRenderImage(renderer())->updateAltText();
    } else if (attr->name() == srcAttr) {
        if (renderer() && inputType() == IMAGE) {
            if (!m_imageLoader)
                m_imageLoader.set(new HTMLImageLoader(this));
            m_imageLoader->updateFromElementIgnoringPreviousError();
        }
    } else if (attr->name() == usemapAttr ||
               attr->name() == accesskeyAttr) {
        // FIXME: ignore for the moment
    } else if (attr->name() == vspaceAttr) {
        addCSSLength(attr, CSSPropertyMarginTop, attr->value());
        addCSSLength(attr, CSSPropertyMarginBottom, attr->value());
    } else if (attr->name() == hspaceAttr) {
        addCSSLength(attr, CSSPropertyMarginLeft, attr->value());
        addCSSLength(attr, CSSPropertyMarginRight, attr->value());
    } else if (attr->name() == alignAttr) {
        if (inputType() == IMAGE)
            addHTMLAlignment(attr);
    } else if (attr->name() == widthAttr) {
        if (respectHeightAndWidthAttrs())
            addCSSLength(attr, CSSPropertyWidth, attr->value());
    } else if (attr->name() == heightAttr) {
        if (respectHeightAndWidthAttrs())
            addCSSLength(attr, CSSPropertyHeight, attr->value());
    } else if (attr->name() == onfocusAttr) {
        setInlineEventListenerForTypeAndAttribute(eventNames().focusEvent, attr);
    } else if (attr->name() == onblurAttr) {
        setInlineEventListenerForTypeAndAttribute(eventNames().blurEvent, attr);
    } else if (attr->name() == onselectAttr) {
        setInlineEventListenerForTypeAndAttribute(eventNames().selectEvent, attr);
    } else if (attr->name() == onchangeAttr) {
        setInlineEventListenerForTypeAndAttribute(eventNames().changeEvent, attr);
    } else if (attr->name() == oninputAttr) {
        setInlineEventListenerForTypeAndAttribute(eventNames().inputEvent, attr);
    }
    // Search field and slider attributes all just cause updateFromElement to be called through style
    // recalcing.
    else if (attr->name() == onsearchAttr) {
        setInlineEventListenerForTypeAndAttribute(eventNames().searchEvent, attr);
    } else if (attr->name() == resultsAttr) {
        int oldResults = m_maxResults;
        m_maxResults = !attr->isNull() ? min(attr->value().toInt(), maxSavedResults) : -1;
        // FIXME: Detaching just for maxResults change is not ideal.  We should figure out the right
        // time to relayout for this change.
        if (m_maxResults != oldResults && (m_maxResults <= 0 || oldResults <= 0) && attached()) {
            detach();
            attach();
        }
        setChanged();
    } else if (attr->name() == placeholderAttr) {
        if (isTextField())
            InputElement::updatePlaceholderVisibility(m_data, document(), true);
    } else if (attr->name() == autosaveAttr ||
             attr->name() == incrementalAttr ||
             attr->name() == minAttr ||
             attr->name() == maxAttr ||
             attr->name() == multipleAttr ||
             attr->name() == precisionAttr)
        setChanged();
    else
        HTMLFormControlElementWithState::parseMappedAttribute(attr);
}

bool HTMLInputElement::rendererIsNeeded(RenderStyle *style)
{
    switch (inputType()) {
        case BUTTON:
        case CHECKBOX:
        case FILE:
        case IMAGE:
        case ISINDEX:
        case PASSWORD:
        case RADIO:
        case RANGE:
        case RESET:
        case SEARCH:
        case SUBMIT:
        case TEXT:
            return HTMLFormControlElementWithState::rendererIsNeeded(style);
        case HIDDEN:
            return false;
    }
    ASSERT(false);
    return false;
}

RenderObject *HTMLInputElement::createRenderer(RenderArena *arena, RenderStyle *style)
{
    switch (inputType()) {
        case BUTTON:
        case RESET:
        case SUBMIT:
            return new (arena) RenderButton(this);
        case CHECKBOX:
        case RADIO:
            return RenderObject::createObject(this, style);
        case FILE:
            return new (arena) RenderFileUploadControl(this);
        case HIDDEN:
            break;
        case IMAGE:
            return new (arena) RenderImage(this);
        case RANGE:
            return new (arena) RenderSlider(this);
        case ISINDEX:
        case PASSWORD:
        case SEARCH:
        case TEXT:
            return new (arena) RenderTextControlSingleLine(this);
    }
    ASSERT(false);
    return 0;
}

void HTMLInputElement::attach()
{
    if (!m_inited) {
        if (!m_haveType)
            setInputType(getAttribute(typeAttr));
        m_inited = true;
    }

    HTMLFormControlElementWithState::attach();

    if (inputType() == IMAGE) {
        if (!m_imageLoader)
            m_imageLoader.set(new HTMLImageLoader(this));
        m_imageLoader->updateFromElement();
        if (renderer()) {
            RenderImage* imageObj = toRenderImage(renderer());
            imageObj->setCachedImage(m_imageLoader->image()); 
            
            // If we have no image at all because we have no src attribute, set
            // image height and width for the alt text instead.
            if (!m_imageLoader->image() && !imageObj->cachedImage())
                imageObj->setImageSizeForAltText();
        }
    }
}

void HTMLInputElement::detach()
{
    HTMLFormControlElementWithState::detach();
    setValueMatchesRenderer(false);
}

String HTMLInputElement::altText() const
{
    // http://www.w3.org/TR/1998/REC-html40-19980424/appendix/notes.html#altgen
    // also heavily discussed by Hixie on bugzilla
    // note this is intentionally different to HTMLImageElement::altText()
    String alt = getAttribute(altAttr);
    // fall back to title attribute
    if (alt.isNull())
        alt = getAttribute(titleAttr);
    if (alt.isNull())
        alt = getAttribute(valueAttr);
    if (alt.isEmpty())
        alt = inputElementAltText();
    return alt;
}

bool HTMLInputElement::isSuccessfulSubmitButton() const
{
    // HTML spec says that buttons must have names to be considered successful.
    // However, other browsers do not impose this constraint. So we do likewise.
    return !disabled() && (inputType() == IMAGE || inputType() == SUBMIT);
}

bool HTMLInputElement::isActivatedSubmit() const
{
    return m_activeSubmit;
}

void HTMLInputElement::setActivatedSubmit(bool flag)
{
    m_activeSubmit = flag;
}

bool HTMLInputElement::appendFormData(FormDataList& encoding, bool multipart)
{
    // image generates its own names, but for other types there is no form data unless there's a name
    if (name().isEmpty() && inputType() != IMAGE)
        return false;

    switch (inputType()) {
        case HIDDEN:
        case ISINDEX:
        case PASSWORD:
        case RANGE:
        case SEARCH:
        case TEXT:
            // always successful
            encoding.appendData(name(), value());
            return true;

        case CHECKBOX:
        case RADIO:
            if (checked()) {
                encoding.appendData(name(), value());
                return true;
            }
            break;

        case BUTTON:
        case RESET:
            // these types of buttons are never successful
            return false;

        case IMAGE:
            if (m_activeSubmit) {
                encoding.appendData(name().isEmpty() ? "x" : (name() + ".x"), m_xPos);
                encoding.appendData(name().isEmpty() ? "y" : (name() + ".y"), m_yPos);
                if (!name().isEmpty() && !value().isEmpty())
                    encoding.appendData(name(), value());
                return true;
            }
            break;

        case SUBMIT:
            if (m_activeSubmit) {