root/Source/web/WebElement.cpp

DEFINITIONS

1. isFormControlElement
2. isTextFormControlElement
3. tagName
4. hasTagName
5. hasHTMLTagName
6. hasAttribute
7. removeAttribute
8. getAttribute
9. setAttribute
10. attributeCount
11. shadowRoot
12. attributeLocalName
13. attributeValue
14. innerText
15. computeInheritedLanguage
16. requestFullScreen
17. boundsInViewportSpace
18. imageContents

/*
 * Copyright (C) 2009 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "WebDocument.h"
#include "WebElement.h"
#include "bindings/v8/ExceptionState.h"
#include "core/dom/Element.h"
#include "core/dom/NamedNodeMap.h"
#include "core/dom/custom/CustomElementCallbackDispatcher.h"
#include "core/dom/shadow/ShadowRoot.h"
#include "core/rendering/RenderBoxModelObject.h"
#include "core/rendering/RenderObject.h"
#include "public/platform/WebRect.h"
#include "wtf/PassRefPtr.h"


using namespace WebCore;

namespace blink {

bool WebElement::isFormControlElement() const
{
    return constUnwrap<Element>()->isFormControlElement();
}

bool WebElement::isTextFormControlElement() const
{
    return constUnwrap<Element>()->isTextFormControl();
}

WebString WebElement::tagName() const
{
    return constUnwrap<Element>()->tagName();
}

bool WebElement::hasTagName(const WebString& tagName) const
{
    return equalIgnoringCase(constUnwrap<Element>()->tagName(),
                             tagName.operator String());
}

bool WebElement::hasHTMLTagName(const WebString& tagName) const
{
    // How to create                     class              nodeName localName
    // createElement('input')            HTMLInputElement   INPUT    input
    // createElement('INPUT')            HTMLInputElement   INPUT    input
    // createElementNS(xhtmlNS, 'input') HTMLInputElement   INPUT    input
    // createElementNS(xhtmlNS, 'INPUT') HTMLUnknownElement INPUT    INPUT
    const Element* element = constUnwrap<Element>();
    return HTMLNames::xhtmlNamespaceURI == element->namespaceURI() && element->localName() == String(tagName).lower();
}

bool WebElement::hasAttribute(const WebString& attrName) const
{
    return constUnwrap<Element>()->hasAttribute(attrName);
}

void WebElement::removeAttribute(const WebString& attrName)
{
    // TODO: Custom element callbacks need to be called on WebKit API methods that
    // mutate the DOM in any way.
    CustomElementCallbackDispatcher::CallbackDeliveryScope deliverCustomElementCallbacks;
    unwrap<Element>()->removeAttribute(attrName);
}

WebString WebElement::getAttribute(const WebString& attrName) const
{
    return constUnwrap<Element>()->getAttribute(attrName);
}

bool WebElement::setAttribute(const WebString& attrName, const WebString& attrValue)
{
    // TODO: Custom element callbacks need to be called on WebKit API methods that
    // mutate the DOM in any way.
    CustomElementCallbackDispatcher::CallbackDeliveryScope deliverCustomElementCallbacks;
    TrackExceptionState exceptionState;
    unwrap<Element>()->setAttribute(attrName, attrValue, exceptionState);
    return !exceptionState.hadException();
}

unsigned WebElement::attributeCount() const
{
    if (!constUnwrap<Element>()->hasAttributes())
        return 0;
    return constUnwrap<Element>()->attributeCount();
}

WebNode WebElement::shadowRoot() const
{
    ShadowRoot* shadowRoot = constUnwrap<Element>()->shadowRoot();
    if (!shadowRoot)
        return WebNode();
    return WebNode(shadowRoot->toNode());
}

WebString WebElement::attributeLocalName(unsigned index) const
{
    if (index >= attributeCount())
        return WebString();
    return constUnwrap<Element>()->attributeItem(index).localName();
}

WebString WebElement::attributeValue(unsigned index) const
{
    if (index >= attributeCount())
        return WebString();
    return constUnwrap<Element>()->attributeItem(index).value();
}

WebString WebElement::innerText()
{
    return unwrap<Element>()->innerText();
}

WebString WebElement::computeInheritedLanguage() const
{
    return WebString(constUnwrap<Element>()->computeInheritedLanguage());
}

void WebElement::requestFullScreen()
{
    unwrap<Element>()->webkitRequestFullScreen(Element::ALLOW_KEYBOARD_INPUT);
}

WebRect WebElement::boundsInViewportSpace()
{
    return unwrap<Element>()->boundsInRootViewSpace();
}

WebImage WebElement::imageContents()
{
    if (isNull())
        return WebImage();

    WebCore::Image* image = unwrap<Element>()->imageContents();
    if (!image)
        return WebImage();

    RefPtr<NativeImageSkia> bitmap = image->nativeImageForCurrentFrame();
    if (!bitmap)
        return WebImage();

    return bitmap->bitmap();
}

WebElement::WebElement(const PassRefPtr<Element>& elem)
    : WebNode(elem)
{
}

WebElement& WebElement::operator=(const PassRefPtr<Element>& elem)
{
    m_private = elem;
    return *this;
}

WebElement::operator PassRefPtr<Element>() const
{
    return toElement(m_private.get());
}

} // namespace blink