コード例 #1
0
ファイル: ImageLoader.cpp プロジェクト: DreamOnTheGo/src
void ImageLoader::updateFromElement()
{
    // If we're not making renderers for the page, then don't load images.  We don't want to slow
    // down the raw HTML parsing case by loading images we don't intend to display.
    Document* document = m_element->document();
    if (!document->renderer())
        return;

    AtomicString attr = m_element->getAttribute(m_element->imageSourceAttributeName());

    if (attr == m_failedLoadURL)
        return;

    // Do not load any image if the 'src' attribute is missing or if it is
    // an empty string referring to a local file. The latter condition is
    // a quirk that preserves old behavior that Dashboard widgets
    // need (<rdar://problem/5994621>).
    CachedImage* newImage = 0;
    if (!(attr.isNull() || (attr.isEmpty() && document->baseURI().isLocalFile()))) {
        if (m_loadManually) {
            bool autoLoadOtherImages = document->cachedResourceLoader()->autoLoadImages();
            document->cachedResourceLoader()->setAutoLoadImages(false);
            newImage = new CachedImage(sourceURI(attr));
            newImage->setLoading(true);
            newImage->setOwningCachedResourceLoader(document->cachedResourceLoader());
            document->cachedResourceLoader()->m_documentResources.set(newImage->url(), newImage);
            document->cachedResourceLoader()->setAutoLoadImages(autoLoadOtherImages);
        } else
            newImage = document->cachedResourceLoader()->requestImage(sourceURI(attr));

        // If we do not have an image here, it means that a cross-site
        // violation occurred.
        m_failedLoadURL = !newImage ? attr : AtomicString();
    }
    
    CachedImage* oldImage = m_image.get();
    if (newImage != oldImage) {
        if (!m_firedBeforeLoad)
            beforeLoadEventSender().cancelEvent(this);
        if (!m_firedLoad)
            loadEventSender().cancelEvent(this);

        m_image = newImage;
        m_firedBeforeLoad = !newImage;
        m_firedLoad = !newImage;
        m_imageComplete = !newImage;

        if (newImage) {
            newImage->addClient(this);
            if (!m_element->document()->hasListenerType(Document::BEFORELOAD_LISTENER))
                dispatchPendingBeforeLoadEvent();
            else
                beforeLoadEventSender().dispatchEventSoon(this);
        }
        if (oldImage)
            oldImage->removeClient(this);
    }

    if (RenderImageResource* imageResource = renderImageResource())
        imageResource->resetAnimation();
}
コード例 #2
0
ファイル: ImageLoader.cpp プロジェクト: sysrqb/chromium-src
void ImageLoader::updateFromElement()
{
    // If we're not making renderers for the page, then don't load images.  We don't want to slow
    // down the raw HTML parsing case by loading images we don't intend to display.
    Document* document = m_element->document();
    if (!document->renderer())
        return;

    AtomicString attr = m_element->getAttribute(m_element->imageSourceAttributeName());

    if (attr == m_failedLoadURL)
        return;

    // Do not load any image if the 'src' attribute is missing or if it is
    // an empty string.
    CachedImage* newImage = 0;
    if (!attr.isNull() && !stripLeadingAndTrailingHTMLSpaces(attr).isEmpty()) {
        ResourceRequest request = ResourceRequest(document->completeURL(sourceURI(attr)));

        String crossOriginMode = m_element->fastGetAttribute(HTMLNames::crossoriginAttr);
        if (!crossOriginMode.isNull()) {
            StoredCredentials allowCredentials = equalIgnoringCase(crossOriginMode, "use-credentials") ? AllowStoredCredentials : DoNotAllowStoredCredentials;
            updateRequestForAccessControl(request, document->securityOrigin(), allowCredentials);
        }

        if (m_loadManually) {
            bool autoLoadOtherImages = document->cachedResourceLoader()->autoLoadImages();
            document->cachedResourceLoader()->setAutoLoadImages(false);
            newImage = new CachedImage(request);
            newImage->setLoading(true);
            newImage->setOwningCachedResourceLoader(document->cachedResourceLoader());
            document->cachedResourceLoader()->m_documentResources.set(newImage->url(), newImage);
            document->cachedResourceLoader()->setAutoLoadImages(autoLoadOtherImages);
        } else
            newImage = document->cachedResourceLoader()->requestImage(request);

        // If we do not have an image here, it means that a cross-site
        // violation occurred.
        m_failedLoadURL = !newImage ? attr : AtomicString();
    } else if (!attr.isNull()) // Fire an error event if the url is empty.
        m_element->dispatchEvent(Event::create(eventNames().errorEvent, false, false));
    
    CachedImage* oldImage = m_image.get();
    if (newImage != oldImage) {
        if (!m_firedBeforeLoad)
            beforeLoadEventSender().cancelEvent(this);
        if (!m_firedLoad)
            loadEventSender().cancelEvent(this);

        m_image = newImage;
        m_firedBeforeLoad = !newImage;
        m_firedLoad = !newImage;
        m_imageComplete = !newImage;

        if (newImage) {
            if (!m_element->document()->hasListenerType(Document::BEFORELOAD_LISTENER))
                dispatchPendingBeforeLoadEvent();
            else
                beforeLoadEventSender().dispatchEventSoon(this);

            // If newImage is cached, addClient() will result in the load event
            // being queued to fire. Ensure this happens after beforeload is
            // dispatched.
            newImage->addClient(this);
        }
        if (oldImage)
            oldImage->removeClient(this);
    }

    if (RenderImageResource* imageResource = renderImageResource())
        imageResource->resetAnimation();
}
コード例 #3
0
void ImageLoader::updateFromElement()
{
    // If we're not making renderers for the page, then don't load images.  We don't want to slow
    // down the raw HTML parsing case by loading images we don't intend to display.
    Document* document = m_element->document();
    if (!document->renderer())
        return;

    AtomicString attr = m_element->getAttribute(m_element->imageSourceAttributeName());

    if (attr == m_failedLoadURL)
        return;

    // Do not load any image if the 'src' attribute is missing or if it is
    // an empty string referring to a local file. The latter condition is
    // a quirk that preserves old behavior that Dashboard widgets
    // need (<rdar://problem/5994621>).
    CachedImage* newImage = 0;
    // CAPPFIX_WEB_IMG_SRC_NULL
#if 1
    if (!attr.isNull() && !stripLeadingAndTrailingHTMLSpaces(attr).isEmpty()) {
#else
    if (!(attr.isNull() || (attr.isEmpty() && document->baseURI().isLocalFile()))) {
#endif
        ResourceRequest request = ResourceRequest(document->completeURL(sourceURI(attr)));

        String crossOriginMode = m_element->fastGetAttribute(HTMLNames::crossoriginAttr);
        if (!crossOriginMode.isNull()) {
            bool allowCredentials = equalIgnoringCase(crossOriginMode, "use-credentials");
            updateRequestForAccessControl(request, document->securityOrigin(), allowCredentials);
        }

        if (m_loadManually) {
            bool autoLoadOtherImages = document->cachedResourceLoader()->autoLoadImages();
            document->cachedResourceLoader()->setAutoLoadImages(false);
            newImage = new CachedImage(request);
            newImage->setLoading(true);
            newImage->setOwningCachedResourceLoader(document->cachedResourceLoader());
            document->cachedResourceLoader()->m_documentResources.set(newImage->url(), newImage);
            document->cachedResourceLoader()->setAutoLoadImages(autoLoadOtherImages);
        } else
            newImage = document->cachedResourceLoader()->requestImage(request);

        // If we do not have an image here, it means that a cross-site
        // violation occurred.
        m_failedLoadURL = !newImage ? attr : AtomicString();
// CAPPFIX_WEB_IMG_SRC_NULL
#if 1
    } else if (!attr.isNull()) // Fire an error event if the url is empty.
        m_element->dispatchEvent(Event::create(eventNames().errorEvent, false, false));
#else
    }
#endif
    
    CachedImage* oldImage = m_image.get();
    if (newImage != oldImage) {
        if (!m_firedBeforeLoad)
            beforeLoadEventSender().cancelEvent(this);
        if (!m_firedLoad)
            loadEventSender().cancelEvent(this);

        m_image = newImage;
        m_firedBeforeLoad = !newImage;
        m_firedLoad = !newImage;
        m_imageComplete = !newImage;

        if (newImage) {
            newImage->addClient(this);
            if (!m_element->document()->hasListenerType(Document::BEFORELOAD_LISTENER))
                dispatchPendingBeforeLoadEvent();
            else
                beforeLoadEventSender().dispatchEventSoon(this);
        }
        if (oldImage)
            oldImage->removeClient(this);
    }

    if (RenderImageResource* imageResource = renderImageResource())
        imageResource->resetAnimation();
}