html_formimpl.cpp

konqueror3 embedded版本, KDE环境下的当家浏览器的嵌入式版本源码包.

}

static QString calculateAutoFillKey(const HTMLFormElementImpl& e)
{
    KURL k(e.getDocument()->URL());
    k.setRef(QString::null);
    k.setQuery(QString::null);
    // ensure that we have the user / password inside the url
    // otherwise we might have a potential security problem
    // by saving passwords under wrong lookup key.
    const QString name = e.getAttribute(ATTR_NAME).string().stripWhiteSpace();
    const QRegExp re("[;,!]");
    const QStringList url = QStringList::split(re, k.url());
    return url[0] + '#' + name;
}

void HTMLFormElementImpl::doAutoFill()
{
#ifndef KHTML_NO_WALLET
    const QString key = calculateAutoFillKey(*this);

    if (KWallet::Wallet::keyDoesNotExist(KWallet::Wallet::NetworkWallet(),
                                         KWallet::Wallet::FormDataFolder(),
                                         key))
        return;

    // assert(view())
    getDocument()->view()->part()->openWallet(this);
#endif // KHTML_NO_WALLET
}


void HTMLFormElementImpl::walletOpened(KWallet::Wallet *w) {
#ifndef KHTML_NO_WALLET
    assert(w);
    const QString key = calculateAutoFillKey(*this);
    if (!w->hasFolder(KWallet::Wallet::FormDataFolder())) {
        return; // failed
    }
    w->setFolder(KWallet::Wallet::FormDataFolder());
    QMap<QString, QString> map;
    if (w->readMap(key, map))
        return; // failed, abort

    for (QPtrListIterator<HTMLGenericFormElementImpl> it(formElements); it.current(); ++it) {
        if (it.current()->id() == ID_INPUT) {
            HTMLInputElementImpl* const current = static_cast<HTMLInputElementImpl*>(it.current());
            if ((current->inputType() == HTMLInputElementImpl::PASSWORD ||
                    current->inputType() == HTMLInputElementImpl::TEXT) &&
                    !current->readOnly() &&
                    map.contains(current->name().string())) {
                getDocument()->setFocusNode(current);
                current->setValue(map[current->name().string()]);
            }
        }
    }
#endif // KHTML_NO_WALLET
}

void HTMLFormElementImpl::submitFromKeyboard()
{
    // Activate the first nondisabled submit button
    // if there is none, do a submit anyway if not more
    // than one <input type=text> or <input type=password>
    unsigned int inputtext = 0;
    for (QPtrListIterator<HTMLGenericFormElementImpl> it(formElements); it.current(); ++it) {
        if (it.current()->id() == ID_BUTTON) {
            HTMLButtonElementImpl* const current = static_cast<HTMLButtonElementImpl *>(it.current());
            if (current->buttonType() == HTMLButtonElementImpl::SUBMIT && !current->disabled()) {
                current->click();
                return;
            }
        } else if (it.current()->id() == ID_INPUT) {
            HTMLInputElementImpl* const current = static_cast<HTMLInputElementImpl *>(it.current());
            switch(current->inputType())  {
            case HTMLInputElementImpl::SUBMIT:
            case HTMLInputElementImpl::IMAGE:
		if(!current->disabled()) {
			current->click();
			return;
		}
		break;
            case HTMLInputElementImpl::TEXT:
            case HTMLInputElementImpl::PASSWORD:
                ++inputtext;
            default:
                break;
            }
        }
    }

    if (inputtext <= 1)
        prepareSubmit();
}


void HTMLFormElementImpl::gatherWalletData()
{
#ifndef KHTML_NO_WALLET
    KHTMLView* const view = getDocument()->view();
    // check if we have any password input's
    m_walletMap.clear();
    m_havePassword = false;
    m_haveTextarea = false;
    const KURL formUrl(getDocument()->URL());
    if (!view->nonPasswordStorableSite(formUrl.host())) {
        for (QPtrListIterator<HTMLGenericFormElementImpl> it(formElements); it.current(); ++it) {
            if (it.current()->id() == ID_INPUT)  {
                HTMLInputElementImpl* const c = static_cast<HTMLInputElementImpl*> (it.current());
                if ((c->inputType() == HTMLInputElementImpl::TEXT ||
                        c->inputType() == HTMLInputElementImpl::PASSWORD) &&
                        !c->readOnly())  {
                    m_walletMap.insert(c->name().string(), c->value().string());
                    if (c->inputType() == HTMLInputElementImpl::PASSWORD &&
                            !c->value().isEmpty())
                        m_havePassword = true;
                }
            }
            else if (it.current()->id() == ID_TEXTAREA)
                m_haveTextarea = true;
        }
    }
#endif // KHTML_NO_WALLET
}


bool HTMLFormElementImpl::prepareSubmit()
{
    KHTMLView* const view = getDocument()->view();
    if(m_insubmit || !view || !view->part() || view->part()->onlyLocalReferences())
        return m_insubmit;

    gatherWalletData();

    m_insubmit = true;
    m_doingsubmit = false;

    if ( dispatchHTMLEvent(EventImpl::SUBMIT_EVENT,true,true) && !m_doingsubmit )
        m_doingsubmit = true;

    m_insubmit = false;

    if ( m_doingsubmit )
        submit();

    return m_doingsubmit;
}

void HTMLFormElementImpl::submit(  )
{
    if ( m_insubmit ) {
        m_doingsubmit = true;
        return;
    }

    m_insubmit = true;

#ifdef FORMS_DEBUG
    kdDebug( 6030 ) << "submitting!" << endl;
#endif

    bool ok;
    KHTMLView* const view = getDocument()->view();
    const QByteArray form_data = formData(ok);
    const KURL formUrl(getDocument()->URL());

    if (ok && view) {
        if (m_walletMap.isEmpty()) {
            gatherWalletData();
        }
#ifndef KHTML_NO_WALLET
        if (m_havePassword && !m_haveTextarea && KWallet::Wallet::isEnabled()) {
            const QString key = calculateAutoFillKey(*this);
            const bool doesnotexist = KWallet::Wallet::keyDoesNotExist(KWallet::Wallet::NetworkWallet(), KWallet::Wallet::FormDataFolder(), key);
            KWallet::Wallet* const w = view->part()->wallet();
            bool login_changed = false;

            if (!doesnotexist && w) {
                // check if the login information changed from what
                // we had so far.
                if (w->hasFolder(KWallet::Wallet::FormDataFolder())) {
                    w->setFolder(KWallet::Wallet::FormDataFolder());
                    QMap<QString, QString> map;
                    if (!w->readMap(key, map)) {
                        QMapConstIterator<QString, QString> it = map.begin();
                        const QMapConstIterator<QString, QString> itEnd = map.end();
                        for ( ; it != itEnd; ++it )
                            if ( map[it.key()] != m_walletMap[it.key()] ) {
                                login_changed = true;
                                break;
                            }
                    } else {
                        login_changed = true;
                    }
                }
            }

            if ( doesnotexist || !w || login_changed ) {
                // TODO use KMessageBox::questionYesNoCancel() again, if you can pass a KGuiItem for Cancel
                KDialogBase* const dialog = new KDialogBase(i18n("Save Login Information"),
                                                          KDialogBase::Yes | KDialogBase::No | KDialogBase::Cancel,
                                                          KDialogBase::Yes, KDialogBase::Cancel,
                                                          0, "questionYesNoCancel", true, true,
                                                          i18n("Store"), KGuiItem(i18n("Ne&ver for This Site")), i18n("Do Not Store"));

                bool checkboxResult = false;
                const int savePassword = KMessageBox::createKMessageBox(dialog, QMessageBox::Information,
                                                                            formUrl.host().isEmpty() ? // e.g. local file
                                                                            i18n("Konqueror has the ability to store the password "
                                                                                 "in an encrypted wallet. When the wallet is unlocked, it "
                                                                                 "can then automatically restore the login information "
                                                                                 "next time you submit this form. Do you want to store "
                                                                                 "the information now?") :
                                                                            i18n("Konqueror has the ability to store the password "
                                                                                 "in an encrypted wallet. When the wallet is unlocked, it "
                                                                                 "can then automatically restore the login information "
                                                                                 "next time you visit %1. Do you want to store "
                                                                                 "the information now?").arg(formUrl.host()),
                                                                            QStringList(), QString::null, &checkboxResult, KMessageBox::Notify);

                if ( savePassword == KDialogBase::Yes ) {
                    // ensure that we have the user / password inside the url
                    // otherwise we might have a potential security problem
                    // by saving passwords under wrong lookup key.

                    getDocument()->view()->part()->saveToWallet(key, m_walletMap);
                } else if ( savePassword == KDialogBase::No ) {
                    view->addNonPasswordStorableSite(formUrl.host());
                }
            }
        }
#endif // KHTML_NO_WALLET

        const DOMString url(khtml::parseURL(getAttribute(ATTR_ACTION)));
        if(m_post) {
            view->part()->submitForm( "post", url.string(), form_data,
                                      m_target.string(),
                                      enctype().string(),
                                      m_boundary );
        }
        else {
            view->part()->submitForm( "get", url.string(), form_data,
                                      m_target.string() );
        }
    }

    m_walletMap.clear(); // done with it
    m_havePassword = m_haveTextarea= false;
    m_doingsubmit = m_insubmit = false;
}

void HTMLFormElementImpl::reset(  )
{
    KHTMLView* const view = getDocument()->view();
    if(m_inreset || !view || !view->part()) return;

    m_inreset = true;

#ifdef FORMS_DEBUG
    kdDebug( 6030 ) << "reset pressed!" << endl;
#endif

    // ### DOM2 labels this event as not cancelable, however
    // common browsers( sick! ) allow it be cancelled.
    if ( !dispatchHTMLEvent(EventImpl::RESET_EVENT,true, true) ) {
        m_inreset = false;
        return;
    }

    for (QPtrListIterator<HTMLGenericFormElementImpl> it(formElements); it.current(); ++it)
        it.current()->reset();

    m_inreset = false;
}

void HTMLFormElementImpl::parseAttribute(AttributeImpl *attr)
{
    switch(attr->id())
    {
    case ATTR_ACTION:
        break;
    case ATTR_TARGET:
        m_target = attr->value();
        break;
    case ATTR_METHOD:
        m_post = ( strcasecmp( attr->value(), "post" ) == 0 );
        break;
    case ATTR_ENCTYPE:
        setEnctype( attr->value() );
        break;
    case ATTR_ACCEPT_CHARSET:
        // space separated list of charsets the server
        // accepts - see rfc2045
        m_acceptcharset = attr->value();
        break;
    case ATTR_ACCEPT:
        // ignore this one for the moment...
        break;
    case ATTR_AUTOCOMPLETE:
        m_autocomplete = strcasecmp( attr->value(), "off" );
        break;
    case ATTR_ONSUBMIT:
        setHTMLEventListener(EventImpl::SUBMIT_EVENT,
	    getDocument()->createHTMLEventListener(attr->value().string(), "onsubmit", this));
        break;
    case ATTR_ONRESET:
        setHTMLEventListener(EventImpl::RESET_EVENT,
	    getDocument()->createHTMLEventListener(attr->value().string(), "onreset", this));
        break;
    case ATTR_NAME:
        if (inDocument() && m_name != attr->value()) {
            getDocument()->underDocNamedCache().remove(m_name.string(),        this);
            getDocument()->underDocNamedCache().add   (attr->value().string(), this);
        }
        m_name = attr->value();
        //Fallthrough intentional
    default:
        HTMLElementImpl::parseAttribute(attr);
    }
}

void HTMLFormElementImpl::removedFromDocument()
{
    getDocument()->underDocNamedCache().remove(m_name.string(), this);
    HTMLElementImpl::removedFromDocument();
}

void HTMLFormElementImpl::insertedIntoDocument()
{
    getDocument()->underDocNamedCache().add(m_name.string(), this);
    HTMLElementImpl::insertedIntoDocument();
}

void HTMLFormElementImpl::removeId(const QString& id)
{
    getDocument()->underDocNamedCache().remove(id, this);
    HTMLElementImpl::removeId(id);
}

void HTMLFormElementImpl::addId   (const QString& id)
{
    getDocument()->underDocNamedCache().add(id, this);
    HTMLElementImpl::addId(id);
}


void HTMLFormElementImpl::radioClicked( HTMLGenericFormElementImpl *caller )
{
    for (QPtrListIterator<HTMLGenericFormElementImpl> it(formElements); it.current(); ++it) {
        HTMLGenericFormElementImpl* const current = it.current();
        if (current->id() == ID_INPUT &&
            static_cast<HTMLInputElementImpl*>(current)->inputType() == HTMLInputElementImpl::RADIO &&
            current != caller && current->form() == caller->form() && current->name() == caller->name())
            static_cast<HTMLInputElementImpl*>(current)->setChecked(false);
    }
}

void HTMLFormElementImpl::registerFormElement(HTMLGenericFormElementImpl *e)
{
    formElements.append(e);
}

void HTMLFormElementImpl::removeFormElement(HTMLGenericFormElementImpl *e)
{
    formElements.remove(e);
}

void HTMLFormElementImpl::registerImgElement(HTMLImageElementImpl *e)
{
    imgElements.append(e);
}

void HTMLFormElementImpl::removeImgElement(HTMLImageElementImpl *e)
{
    imgElements.remove(e);
}

// -------------------------------------------------------------------------

HTMLGenericFormElementImpl::HTMLGenericFormElementImpl(DocumentPtr *doc, HTMLFormElementImpl *f)
    : HTMLElementImpl(doc)
{
    m_disabled = m_readOnly = false;
    m_name = 0;

    if (f)
	m_form = f;
    else
	m_form = getForm();
    if (m_form)
        m_form->registerFormElement(this);
}

void HTMLGenericFormElementImpl::insertedIntoDocument()
{
    HTMLElementImpl::insertedIntoDocument();

    if (!m_form) {
        HTMLFormElementImpl* const newform = getForm();
        if (newform) {
            m_form = newform;
            m_form->registerFormElement(this);
        }
    }
}