void RenderImage::imageChanged(WrappedImagePtr newImage, const IntRect* rect) { if (documentBeingDestroyed()) return; if (!m_imageResource) return; if (newImage != m_imageResource->imagePtr()) return; // Per the spec, we let the server-sent header override srcset/other sources of dpr. // https://github.com/igrigorik/http-client-hints/blob/master/draft-grigorik-http-client-hints-01.txt#L255 if (m_imageResource->cachedImage() && m_imageResource->cachedImage()->hasDevicePixelRatioHeaderValue()) m_imageDevicePixelRatio = 1 / m_imageResource->cachedImage()->devicePixelRatioHeaderValue(); // If the RenderImage was just created we don't have style() or a parent() // yet so all we can do is update our intrinsic size. Once we're inserted // the resulting layout will do the rest of the work. if (!parent()) { updateIntrinsicSizeIfNeeded(m_imageResource->intrinsicSize()); return; } RenderReplaced::imageChanged(newImage, rect); ASSERT(isRooted()); LayoutSize oldIntrinsicSize = intrinsicSize(); LayoutSize newIntrinsicSize = m_imageResource->intrinsicSize(); updateIntrinsicSizeIfNeeded(newIntrinsicSize); bool imageSourceHasChangedSize = oldIntrinsicSize != newIntrinsicSize; if (imageSourceHasChangedSize) setPreferredLogicalWidthsDirty(); // If the actual area occupied by the image has changed and it is not constrained by style then a layout is required. bool imageSizeIsConstrained = style()->logicalWidth().isSpecified() && style()->logicalHeight().isSpecified(); // FIXME: We only need to recompute the containing block's preferred size if the containing block's size // depends on the image's size (i.e., the container uses shrink-to-fit sizing). // There's no easy way to detect that shrink-to-fit is needed, always force a layout. bool containingBlockNeedsToRecomputePreferredSize = style()->logicalWidth().isPercent() || style()->logicalMaxWidth().isPercent() || style()->logicalMinWidth().isPercent(); if (imageSourceHasChangedSize && (!imageSizeIsConstrained || containingBlockNeedsToRecomputePreferredSize)) { setNeedsLayout(); return; } // The image hasn't changed in size or its style constrains its size, so a paint invalidation will suffice. if (everHadLayout() && !selfNeedsLayout()) { // The inner content rectangle is calculated during layout, but may need an update now // (unless the box has already been scheduled for layout). In order to calculate it, we // may need values from the containing block, though, so make sure that we're not too // early. It may be that layout hasn't even taken place once yet. updateInnerContentRect(); } }
void RenderImage::imageChanged(WrappedImagePtr newImage, const IntRect* rect) { if (documentBeingDestroyed()) return; if (!m_imageResource) return; if (newImage != m_imageResource->imagePtr()) return; // Per the spec, we let the server-sent header override srcset/other sources of dpr. // https://github.com/igrigorik/http-client-hints/blob/master/draft-grigorik-http-client-hints-01.txt#L255 if (m_imageResource->cachedImage() && m_imageResource->cachedImage()->hasDevicePixelRatioHeaderValue()) m_imageDevicePixelRatio = 1 / m_imageResource->cachedImage()->devicePixelRatioHeaderValue(); // If the RenderImage was just created we don't have style() or a parent() // yet so all we can do is update our intrinsic size. Once we're inserted // the resulting layout will do the rest of the work. if (!parent()) { updateIntrinsicSizeIfNeeded(m_imageResource->intrinsicSize()); return; } if (hasBoxDecorationBackground() || hasMask()) RenderReplaced::imageChanged(newImage, rect); paintInvalidationOrMarkForLayout(rect); }
void RenderImage::paintInvalidationOrMarkForLayout(const IntRect* rect) { ASSERT(isRooted()); LayoutSize oldIntrinsicSize = intrinsicSize(); LayoutSize newIntrinsicSize = m_imageResource->intrinsicSize(); updateIntrinsicSizeIfNeeded(newIntrinsicSize); bool imageSourceHasChangedSize = oldIntrinsicSize != newIntrinsicSize; if (imageSourceHasChangedSize) setPreferredLogicalWidthsDirty(); // If the actual area occupied by the image has changed and it is not constrained by style then a layout is required. bool imageSizeIsConstrained = style()->logicalWidth().isSpecified() && style()->logicalHeight().isSpecified(); // FIXME: We only need to recompute the containing block's preferred size if the containing block's size // depends on the image's size (i.e., the container uses shrink-to-fit sizing). // There's no easy way to detect that shrink-to-fit is needed, always force a layout. bool containingBlockNeedsToRecomputePreferredSize = style()->logicalWidth().isPercent() || style()->logicalMaxWidth().isPercent() || style()->logicalMinWidth().isPercent(); if (imageSourceHasChangedSize && (!imageSizeIsConstrained || containingBlockNeedsToRecomputePreferredSize)) { setNeedsLayoutAndFullPaintInvalidation(); return; } // The image hasn't changed in size or its style constrains its size, so a paint invalidation will suffice. if (everHadLayout() && !selfNeedsLayout()) { // The inner content rectangle is calculated during layout, but may need an update now // (unless the box has already been scheduled for layout). In order to calculate it, we // may need values from the containing block, though, so make sure that we're not too // early. It may be that layout hasn't even taken place once yet. updateInnerContentRect(); } LayoutRect paintInvalidationRect; if (rect) { // The image changed rect is in source image coordinates, // so map from the bounds of the image to the contentsBox. paintInvalidationRect = enclosingIntRect(mapRect(*rect, FloatRect(FloatPoint(), m_imageResource->imageSize()), contentBoxRect())); // Guard against too-large changed rects. paintInvalidationRect.intersect(contentBoxRect()); } else { paintInvalidationRect = contentBoxRect(); } { // FIXME: We should not be allowing paint invalidations during layout. crbug.com/339584 AllowPaintInvalidationScope scoper(frameView()); DisableCompositingQueryAsserts disabler; invalidatePaintRectangle(paintInvalidationRect); } // Tell any potential compositing layers that the image needs updating. contentChanged(ImageChanged); }