Beispiel #1
0
void RenderImage::computeIntrinsicRatioInformation(FloatSize& intrinsicSize, double& intrinsicRatio, bool& isPercentageIntrinsicSize) const
{
    RenderReplaced::computeIntrinsicRatioInformation(intrinsicSize, intrinsicRatio, isPercentageIntrinsicSize);

    // Our intrinsicSize is empty if we're rendering generated images with relative width/height. Figure out the right intrinsic size to use.
    if (intrinsicSize.isEmpty() && (m_imageResource->imageHasRelativeWidth() || m_imageResource->imageHasRelativeHeight())) {
        RenderObject* containingBlock = isOutOfFlowPositioned() ? container() : this->containingBlock();
        if (containingBlock->isBox()) {
            RenderBox* box = toRenderBox(containingBlock);
            intrinsicSize.setWidth(box->availableLogicalWidth());
            intrinsicSize.setHeight(box->availableLogicalHeight(IncludeMarginBorderPadding));
        }
    }
    // Don't compute an intrinsic ratio to preserve historical WebKit behavior if we're painting alt text and/or a broken image.
    if (m_imageResource && m_imageResource->errorOccurred()) {
        intrinsicRatio = 1;
        return;
    }
}
Beispiel #2
0
void RenderImage::computeIntrinsicRatioInformation(FloatSize& intrinsicSize, double& intrinsicRatio) const
{
    RenderReplaced::computeIntrinsicRatioInformation(intrinsicSize, intrinsicRatio);

    // Our intrinsicSize is empty if we're rendering generated images with relative width/height. Figure out the right intrinsic size to use.
    if (intrinsicSize.isEmpty() && (m_imageResource->imageHasRelativeWidth() || m_imageResource->imageHasRelativeHeight())) {
        RenderObject* containingBlock = isOutOfFlowPositioned() ? container() : this->containingBlock();
        if (containingBlock->isBox()) {
            RenderBox* box = toRenderBox(containingBlock);
            intrinsicSize.setWidth(box->availableLogicalWidth().toFloat());
            intrinsicSize.setHeight(box->availableLogicalHeight(IncludeMarginBorderPadding).toFloat());
        }
    }
    // Don't compute an intrinsic ratio to preserve historical WebKit behavior if we're painting alt text and/or a broken image.
    // Video is excluded from this behavior because video elements have a default aspect ratio that a failed poster image load should not override.
    if (m_imageResource && m_imageResource->errorOccurred() && !isVideo()) {
        intrinsicRatio = 1;
        return;
    }
}