mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-25 22:01:30 +00:00
c2f1413e6b
This allows supporting image-set(), etc, and simplifies the bullet frame
code significantly, too thanks to two changes:
* Instead of manually managing the image request, use the CSS image
loader, with the `REQUEST_REQUIRES_REFLOW` flag, to handle image
loads correctly. This didn't exist when this code was initially
implemented, but we can nicely use it now.
* Instead of re-implementing another WebRender command-builder thing,
we can just reuse the nsImageRenderer code.
Differential Revision: https://phabricator.services.mozilla.com/D100774
867 lines
28 KiB
C++
867 lines
28 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
//
|
|
// Eric Vaughan
|
|
// Netscape Communications
|
|
//
|
|
// See documentation in associated header file
|
|
//
|
|
|
|
#include "gfxContext.h"
|
|
#include "nsImageBoxFrame.h"
|
|
#include "nsGkAtoms.h"
|
|
#include "mozilla/ComputedStyle.h"
|
|
#include "nsStyleConsts.h"
|
|
#include "nsStyleUtil.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsPresContext.h"
|
|
#include "nsBoxLayoutState.h"
|
|
|
|
#include "nsHTMLParts.h"
|
|
#include "nsString.h"
|
|
#include "nsLeafFrame.h"
|
|
#include "mozilla/dom/Document.h"
|
|
#include "mozilla/dom/DocumentInlines.h"
|
|
#include "nsImageMap.h"
|
|
#include "nsContainerFrame.h"
|
|
#include "nsCSSRendering.h"
|
|
#include "nsNameSpaceManager.h"
|
|
#include "nsTextFragment.h"
|
|
#include "nsTransform2D.h"
|
|
#include "nsITheme.h"
|
|
|
|
#include "nsIURI.h"
|
|
#include "nsThreadUtils.h"
|
|
#include "nsDisplayList.h"
|
|
#include "ImageLayers.h"
|
|
#include "ImageContainer.h"
|
|
#include "nsIContent.h"
|
|
|
|
#include "nsContentUtils.h"
|
|
|
|
#include "mozilla/BasicEvents.h"
|
|
#include "mozilla/EventDispatcher.h"
|
|
#include "mozilla/Maybe.h"
|
|
#include "mozilla/PresShell.h"
|
|
#include "mozilla/SVGImageContext.h"
|
|
#include "Units.h"
|
|
#include "mozilla/layers/RenderRootStateManager.h"
|
|
#include "mozilla/layers/WebRenderLayerManager.h"
|
|
#include "mozilla/dom/ImageTracker.h"
|
|
|
|
#if defined(XP_WIN)
|
|
// Undefine LoadImage to prevent naming conflict with Windows.
|
|
# undef LoadImage
|
|
#endif
|
|
|
|
#define ONLOAD_CALLED_TOO_EARLY 1
|
|
|
|
using namespace mozilla;
|
|
using namespace mozilla::gfx;
|
|
using namespace mozilla::image;
|
|
using namespace mozilla::layers;
|
|
|
|
using mozilla::dom::Document;
|
|
using mozilla::dom::Element;
|
|
using mozilla::dom::ReferrerInfo;
|
|
|
|
class nsImageBoxFrameEvent : public Runnable {
|
|
public:
|
|
nsImageBoxFrameEvent(nsIContent* content, EventMessage message)
|
|
: mozilla::Runnable("nsImageBoxFrameEvent"),
|
|
mContent(content),
|
|
mMessage(message) {}
|
|
|
|
NS_IMETHOD Run() override;
|
|
|
|
private:
|
|
nsCOMPtr<nsIContent> mContent;
|
|
EventMessage mMessage;
|
|
};
|
|
|
|
NS_IMETHODIMP
|
|
nsImageBoxFrameEvent::Run() {
|
|
RefPtr<nsPresContext> pres_context = mContent->OwnerDoc()->GetPresContext();
|
|
if (!pres_context) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
WidgetEvent event(true, mMessage);
|
|
|
|
event.mFlags.mBubbles = false;
|
|
EventDispatcher::Dispatch(mContent, pres_context, &event, nullptr, &status);
|
|
return NS_OK;
|
|
}
|
|
|
|
// Fire off an event that'll asynchronously call the image elements
|
|
// onload handler once handled. This is needed since the image library
|
|
// can't decide if it wants to call its observer methods
|
|
// synchronously or asynchronously. If an image is loaded from the
|
|
// cache the notifications come back synchronously, but if the image
|
|
// is loaded from the network the notifications come back
|
|
// asynchronously.
|
|
static void FireImageDOMEvent(nsIContent* aContent, EventMessage aMessage) {
|
|
NS_ASSERTION(aMessage == eLoad || aMessage == eLoadError, "invalid message");
|
|
|
|
nsCOMPtr<nsIRunnable> event = new nsImageBoxFrameEvent(aContent, aMessage);
|
|
nsresult rv =
|
|
aContent->OwnerDoc()->Dispatch(TaskCategory::Other, event.forget());
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("failed to dispatch image event");
|
|
}
|
|
}
|
|
|
|
//
|
|
// NS_NewImageBoxFrame
|
|
//
|
|
// Creates a new image frame and returns it
|
|
//
|
|
nsIFrame* NS_NewImageBoxFrame(PresShell* aPresShell, ComputedStyle* aStyle) {
|
|
return new (aPresShell) nsImageBoxFrame(aStyle, aPresShell->GetPresContext());
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsImageBoxFrame)
|
|
NS_QUERYFRAME_HEAD(nsImageBoxFrame)
|
|
NS_QUERYFRAME_ENTRY(nsImageBoxFrame)
|
|
NS_QUERYFRAME_TAIL_INHERITING(nsLeafBoxFrame)
|
|
|
|
nsresult nsImageBoxFrame::AttributeChanged(int32_t aNameSpaceID,
|
|
nsAtom* aAttribute,
|
|
int32_t aModType) {
|
|
nsresult rv =
|
|
nsLeafBoxFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
|
|
|
|
if (aAttribute == nsGkAtoms::src) {
|
|
UpdateImage();
|
|
PresShell()->FrameNeedsReflow(this, IntrinsicDirty::StyleChange,
|
|
NS_FRAME_IS_DIRTY);
|
|
} else if (aAttribute == nsGkAtoms::validate)
|
|
UpdateLoadFlags();
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsImageBoxFrame::nsImageBoxFrame(ComputedStyle* aStyle,
|
|
nsPresContext* aPresContext)
|
|
: nsLeafBoxFrame(aStyle, aPresContext, kClassID),
|
|
mIntrinsicSize(0, 0),
|
|
mLoadFlags(nsIRequest::LOAD_NORMAL),
|
|
mRequestRegistered(false),
|
|
mUseSrcAttr(false),
|
|
mSuppressStyleCheck(false) {
|
|
MarkIntrinsicISizesDirty();
|
|
}
|
|
|
|
nsImageBoxFrame::~nsImageBoxFrame() = default;
|
|
|
|
/* virtual */
|
|
void nsImageBoxFrame::MarkIntrinsicISizesDirty() {
|
|
XULSizeNeedsRecalc(mImageSize);
|
|
nsLeafBoxFrame::MarkIntrinsicISizesDirty();
|
|
}
|
|
|
|
void nsImageBoxFrame::DestroyFrom(nsIFrame* aDestructRoot,
|
|
PostDestroyData& aPostDestroyData) {
|
|
if (mImageRequest) {
|
|
nsLayoutUtils::DeregisterImageRequest(PresContext(), mImageRequest,
|
|
&mRequestRegistered);
|
|
|
|
mImageRequest->UnlockImage();
|
|
|
|
if (mUseSrcAttr) {
|
|
PresContext()->Document()->ImageTracker()->Remove(mImageRequest);
|
|
}
|
|
|
|
// Release image loader first so that it's refcnt can go to zero
|
|
mImageRequest->CancelAndForgetObserver(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
if (mListener) {
|
|
// set the frame to null so we don't send messages to a dead object.
|
|
reinterpret_cast<nsImageBoxListener*>(mListener.get())->ClearFrame();
|
|
}
|
|
|
|
nsLeafBoxFrame::DestroyFrom(aDestructRoot, aPostDestroyData);
|
|
}
|
|
|
|
void nsImageBoxFrame::Init(nsIContent* aContent, nsContainerFrame* aParent,
|
|
nsIFrame* aPrevInFlow) {
|
|
if (!mListener) {
|
|
RefPtr<nsImageBoxListener> listener = new nsImageBoxListener(this);
|
|
mListener = std::move(listener);
|
|
}
|
|
|
|
mSuppressStyleCheck = true;
|
|
nsLeafBoxFrame::Init(aContent, aParent, aPrevInFlow);
|
|
mSuppressStyleCheck = false;
|
|
|
|
UpdateLoadFlags();
|
|
UpdateImage();
|
|
}
|
|
|
|
void nsImageBoxFrame::RestartAnimation() {
|
|
if (mImageRequest && !mRequestRegistered) {
|
|
nsLayoutUtils::RegisterImageRequestIfAnimated(PresContext(), mImageRequest,
|
|
&mRequestRegistered);
|
|
}
|
|
}
|
|
|
|
void nsImageBoxFrame::StopAnimation() {
|
|
if (mImageRequest && mRequestRegistered) {
|
|
nsLayoutUtils::DeregisterImageRequest(PresContext(), mImageRequest,
|
|
&mRequestRegistered);
|
|
}
|
|
}
|
|
|
|
void nsImageBoxFrame::UpdateImage() {
|
|
nsPresContext* presContext = PresContext();
|
|
Document* doc = presContext->Document();
|
|
|
|
RefPtr<imgRequestProxy> oldImageRequest = mImageRequest;
|
|
|
|
if (mImageRequest) {
|
|
nsLayoutUtils::DeregisterImageRequest(presContext, mImageRequest,
|
|
&mRequestRegistered);
|
|
mImageRequest->CancelAndForgetObserver(NS_ERROR_FAILURE);
|
|
if (mUseSrcAttr) {
|
|
doc->ImageTracker()->Remove(mImageRequest);
|
|
}
|
|
mImageRequest = nullptr;
|
|
}
|
|
|
|
// get the new image src
|
|
nsAutoString src;
|
|
mContent->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::src, src);
|
|
mUseSrcAttr = !src.IsEmpty();
|
|
if (mUseSrcAttr) {
|
|
nsContentPolicyType contentPolicyType;
|
|
nsCOMPtr<nsIPrincipal> triggeringPrincipal;
|
|
uint64_t requestContextID = 0;
|
|
nsContentUtils::GetContentPolicyTypeForUIImageLoading(
|
|
mContent, getter_AddRefs(triggeringPrincipal), contentPolicyType,
|
|
&requestContextID);
|
|
|
|
nsCOMPtr<nsIURI> uri;
|
|
nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(uri), src, doc,
|
|
mContent->GetBaseURI());
|
|
if (uri) {
|
|
auto referrerInfo = MakeRefPtr<ReferrerInfo>(*mContent->AsElement());
|
|
nsresult rv = nsContentUtils::LoadImage(
|
|
uri, mContent, doc, triggeringPrincipal, requestContextID,
|
|
referrerInfo, mListener, mLoadFlags, u""_ns,
|
|
getter_AddRefs(mImageRequest), contentPolicyType);
|
|
|
|
if (NS_SUCCEEDED(rv) && mImageRequest) {
|
|
nsLayoutUtils::RegisterImageRequestIfAnimated(
|
|
presContext, mImageRequest, &mRequestRegistered);
|
|
|
|
// Add to the ImageTracker so that we can find it when media
|
|
// feature values change (e.g. when the system theme changes)
|
|
// and invalidate the image. This allows favicons to respond
|
|
// to these changes.
|
|
doc->ImageTracker()->Add(mImageRequest);
|
|
}
|
|
}
|
|
} else if (auto* styleRequest = GetRequestFromStyle()) {
|
|
styleRequest->SyncClone(mListener, mContent->GetComposedDoc(),
|
|
getter_AddRefs(mImageRequest));
|
|
}
|
|
|
|
if (!mImageRequest) {
|
|
// We have no image, so size to 0
|
|
mIntrinsicSize.SizeTo(0, 0);
|
|
} else {
|
|
// We don't want discarding or decode-on-draw for xul images.
|
|
mImageRequest->StartDecoding(imgIContainer::FLAG_ASYNC_NOTIFY);
|
|
mImageRequest->LockImage();
|
|
}
|
|
|
|
// Do this _after_ locking the new image in case they are the same image.
|
|
if (oldImageRequest) {
|
|
oldImageRequest->UnlockImage();
|
|
}
|
|
}
|
|
|
|
void nsImageBoxFrame::UpdateLoadFlags() {
|
|
static Element::AttrValuesArray strings[] = {nsGkAtoms::always,
|
|
nsGkAtoms::never, nullptr};
|
|
switch (mContent->AsElement()->FindAttrValueIn(
|
|
kNameSpaceID_None, nsGkAtoms::validate, strings, eCaseMatters)) {
|
|
case 0:
|
|
mLoadFlags = nsIRequest::VALIDATE_ALWAYS;
|
|
break;
|
|
case 1:
|
|
mLoadFlags = nsIRequest::VALIDATE_NEVER | nsIRequest::LOAD_FROM_CACHE;
|
|
break;
|
|
default:
|
|
mLoadFlags = nsIRequest::LOAD_NORMAL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
void nsImageBoxFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayListSet& aLists) {
|
|
nsLeafBoxFrame::BuildDisplayList(aBuilder, aLists);
|
|
|
|
if ((0 == mRect.width) || (0 == mRect.height)) {
|
|
// Do not render when given a zero area. This avoids some useless
|
|
// scaling work while we wait for our image dimensions to arrive
|
|
// asynchronously.
|
|
return;
|
|
}
|
|
|
|
if (!IsVisibleForPainting()) return;
|
|
|
|
uint32_t clipFlags =
|
|
nsStyleUtil::ObjectPropsMightCauseOverflow(StylePosition())
|
|
? 0
|
|
: DisplayListClipState::ASSUME_DRAWING_RESTRICTED_TO_CONTENT_RECT;
|
|
|
|
DisplayListClipState::AutoClipContainingBlockDescendantsToContentBox clip(
|
|
aBuilder, this, clipFlags);
|
|
|
|
nsDisplayList list;
|
|
list.AppendNewToTop<nsDisplayXULImage>(aBuilder, this);
|
|
|
|
CreateOwnLayerIfNeeded(aBuilder, &list,
|
|
nsDisplayOwnLayer::OwnLayerForImageBoxFrame);
|
|
|
|
aLists.Content()->AppendToTop(&list);
|
|
}
|
|
|
|
already_AddRefed<imgIContainer> nsImageBoxFrame::GetImageContainerForPainting(
|
|
const nsPoint& aPt, ImgDrawResult& aDrawResult,
|
|
Maybe<nsPoint>& aAnchorPoint, nsRect& aDest) {
|
|
if (!mImageRequest) {
|
|
// This probably means we're drawn by a native theme.
|
|
aDrawResult = ImgDrawResult::SUCCESS;
|
|
return nullptr;
|
|
}
|
|
|
|
// Don't draw if the image's size isn't available.
|
|
uint32_t imgStatus;
|
|
if (!NS_SUCCEEDED(mImageRequest->GetImageStatus(&imgStatus)) ||
|
|
!(imgStatus & imgIRequest::STATUS_SIZE_AVAILABLE)) {
|
|
aDrawResult = ImgDrawResult::NOT_READY;
|
|
return nullptr;
|
|
}
|
|
|
|
nsCOMPtr<imgIContainer> imgCon;
|
|
mImageRequest->GetImage(getter_AddRefs(imgCon));
|
|
|
|
if (!imgCon) {
|
|
aDrawResult = ImgDrawResult::NOT_READY;
|
|
return nullptr;
|
|
}
|
|
|
|
aDest = GetDestRect(aPt, aAnchorPoint);
|
|
aDrawResult = ImgDrawResult::SUCCESS;
|
|
return imgCon.forget();
|
|
}
|
|
|
|
ImgDrawResult nsImageBoxFrame::PaintImage(gfxContext& aRenderingContext,
|
|
const nsRect& aDirtyRect, nsPoint aPt,
|
|
uint32_t aFlags) {
|
|
ImgDrawResult result;
|
|
Maybe<nsPoint> anchorPoint;
|
|
nsRect dest;
|
|
nsCOMPtr<imgIContainer> imgCon =
|
|
GetImageContainerForPainting(aPt, result, anchorPoint, dest);
|
|
if (!imgCon) {
|
|
return result;
|
|
}
|
|
|
|
// don't draw if the image is not dirty
|
|
// XXX(seth): Can this actually happen anymore?
|
|
nsRect dirty;
|
|
if (!dirty.IntersectRect(aDirtyRect, dest)) {
|
|
return ImgDrawResult::TEMPORARY_ERROR;
|
|
}
|
|
|
|
bool hasSubRect = !mUseSrcAttr && (mSubRect.width > 0 || mSubRect.height > 0);
|
|
|
|
Maybe<SVGImageContext> svgContext;
|
|
SVGImageContext::MaybeStoreContextPaint(svgContext, this, imgCon);
|
|
return nsLayoutUtils::DrawSingleImage(
|
|
aRenderingContext, PresContext(), imgCon,
|
|
nsLayoutUtils::GetSamplingFilterForFrame(this), dest, dirty, svgContext,
|
|
aFlags, anchorPoint.ptrOr(nullptr), hasSubRect ? &mSubRect : nullptr);
|
|
}
|
|
|
|
ImgDrawResult nsImageBoxFrame::CreateWebRenderCommands(
|
|
mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::RenderRootStateManager* aManager, nsDisplayItem* aItem,
|
|
nsPoint aPt, uint32_t aFlags) {
|
|
ImgDrawResult result;
|
|
Maybe<nsPoint> anchorPoint;
|
|
nsRect dest;
|
|
nsCOMPtr<imgIContainer> imgCon =
|
|
GetImageContainerForPainting(aPt, result, anchorPoint, dest);
|
|
if (!imgCon) {
|
|
return result;
|
|
}
|
|
|
|
uint32_t containerFlags = imgIContainer::FLAG_ASYNC_NOTIFY;
|
|
if (aFlags & (nsImageRenderer::FLAG_PAINTING_TO_WINDOW |
|
|
nsImageRenderer::FLAG_HIGH_QUALITY_SCALING)) {
|
|
containerFlags |= imgIContainer::FLAG_HIGH_QUALITY_SCALING;
|
|
}
|
|
if (aFlags & nsImageRenderer::FLAG_SYNC_DECODE_IMAGES) {
|
|
containerFlags |= imgIContainer::FLAG_SYNC_DECODE;
|
|
}
|
|
|
|
const int32_t appUnitsPerDevPixel = PresContext()->AppUnitsPerDevPixel();
|
|
LayoutDeviceRect fillRect =
|
|
LayoutDeviceRect::FromAppUnits(dest, appUnitsPerDevPixel);
|
|
|
|
Maybe<SVGImageContext> svgContext;
|
|
gfx::IntSize decodeSize =
|
|
nsLayoutUtils::ComputeImageContainerDrawingParameters(
|
|
imgCon, aItem->Frame(), fillRect, aSc, containerFlags, svgContext);
|
|
|
|
RefPtr<layers::ImageContainer> container;
|
|
result = imgCon->GetImageContainerAtSize(aManager->LayerManager(), decodeSize,
|
|
svgContext, containerFlags,
|
|
getter_AddRefs(container));
|
|
if (!container) {
|
|
NS_WARNING("Failed to get image container");
|
|
return result;
|
|
}
|
|
|
|
mozilla::wr::ImageRendering rendering = wr::ToImageRendering(
|
|
nsLayoutUtils::GetSamplingFilterForFrame(aItem->Frame()));
|
|
gfx::IntSize size;
|
|
Maybe<wr::ImageKey> key = aManager->CommandBuilder().CreateImageKey(
|
|
aItem, container, aBuilder, aResources, rendering, aSc, size, Nothing());
|
|
if (key.isNothing()) {
|
|
return result;
|
|
}
|
|
|
|
wr::LayoutRect fill = wr::ToLayoutRect(fillRect);
|
|
aBuilder.PushImage(fill, fill, !BackfaceIsHidden(), rendering, key.value());
|
|
|
|
return result;
|
|
}
|
|
|
|
nsRect nsImageBoxFrame::GetDestRect(const nsPoint& aOffset,
|
|
Maybe<nsPoint>& aAnchorPoint) {
|
|
nsCOMPtr<imgIContainer> imgCon;
|
|
mImageRequest->GetImage(getter_AddRefs(imgCon));
|
|
MOZ_ASSERT(imgCon);
|
|
|
|
nsRect clientRect;
|
|
GetXULClientRect(clientRect);
|
|
clientRect += aOffset;
|
|
nsRect dest;
|
|
if (!mUseSrcAttr) {
|
|
// Our image (if we have one) is coming from the CSS property
|
|
// 'list-style-image' (combined with '-moz-image-region'). For now, ignore
|
|
// 'object-fit' & 'object-position' in this case, and just fill our rect.
|
|
// XXXdholbert Should we even honor these properties in this case? They only
|
|
// apply to replaced elements, and I'm not sure we count as a replaced
|
|
// element when our image data is determined by CSS.
|
|
dest = clientRect;
|
|
} else {
|
|
// Determine dest rect based on intrinsic size & ratio, along with
|
|
// 'object-fit' & 'object-position' properties:
|
|
IntrinsicSize intrinsicSize;
|
|
AspectRatio intrinsicRatio;
|
|
if (mIntrinsicSize.width > 0 && mIntrinsicSize.height > 0) {
|
|
// Image has a valid size; use it as intrinsic size & ratio.
|
|
intrinsicSize =
|
|
IntrinsicSize(mIntrinsicSize.width, mIntrinsicSize.height);
|
|
intrinsicRatio =
|
|
AspectRatio::FromSize(mIntrinsicSize.width, mIntrinsicSize.height);
|
|
} else {
|
|
// Image doesn't have a (valid) intrinsic size.
|
|
// Try to look up intrinsic ratio and use that at least.
|
|
intrinsicRatio = imgCon->GetIntrinsicRatio().valueOr(AspectRatio());
|
|
}
|
|
aAnchorPoint.emplace();
|
|
dest = nsLayoutUtils::ComputeObjectDestRect(clientRect, intrinsicSize,
|
|
intrinsicRatio, StylePosition(),
|
|
aAnchorPoint.ptr());
|
|
}
|
|
|
|
return dest;
|
|
}
|
|
|
|
void nsDisplayXULImage::Paint(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx) {
|
|
// Even though we call StartDecoding when we get a new image we pass
|
|
// FLAG_SYNC_DECODE_IF_FAST here for the case where the size we draw at is not
|
|
// the intrinsic size of the image and we aren't likely to implement
|
|
// predictive decoding at the correct size for this class like nsImageFrame
|
|
// has.
|
|
uint32_t flags = imgIContainer::FLAG_SYNC_DECODE_IF_FAST;
|
|
if (aBuilder->ShouldSyncDecodeImages())
|
|
flags |= imgIContainer::FLAG_SYNC_DECODE;
|
|
if (aBuilder->UseHighQualityScaling())
|
|
flags |= imgIContainer::FLAG_HIGH_QUALITY_SCALING;
|
|
|
|
ImgDrawResult result = static_cast<nsImageBoxFrame*>(mFrame)->PaintImage(
|
|
*aCtx, GetPaintRect(), ToReferenceFrame(), flags);
|
|
|
|
nsDisplayItemGenericImageGeometry::UpdateDrawResult(this, result);
|
|
}
|
|
|
|
bool nsDisplayXULImage::CreateWebRenderCommands(
|
|
mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::RenderRootStateManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder) {
|
|
nsImageBoxFrame* imageFrame = static_cast<nsImageBoxFrame*>(mFrame);
|
|
if (!imageFrame->CanOptimizeToImageLayer()) {
|
|
return false;
|
|
}
|
|
|
|
if (!imageFrame->mImageRequest) {
|
|
return true;
|
|
}
|
|
|
|
uint32_t flags = imgIContainer::FLAG_SYNC_DECODE_IF_FAST;
|
|
if (aDisplayListBuilder->ShouldSyncDecodeImages()) {
|
|
flags |= imgIContainer::FLAG_SYNC_DECODE;
|
|
}
|
|
if (aDisplayListBuilder->IsPaintingToWindow()) {
|
|
flags |= imgIContainer::FLAG_HIGH_QUALITY_SCALING;
|
|
}
|
|
|
|
ImgDrawResult result = imageFrame->CreateWebRenderCommands(
|
|
aBuilder, aResources, aSc, aManager, this, ToReferenceFrame(), flags);
|
|
if (result == ImgDrawResult::NOT_SUPPORTED) {
|
|
return false;
|
|
}
|
|
|
|
nsDisplayItemGenericImageGeometry::UpdateDrawResult(this, result);
|
|
return true;
|
|
}
|
|
|
|
nsDisplayItemGeometry* nsDisplayXULImage::AllocateGeometry(
|
|
nsDisplayListBuilder* aBuilder) {
|
|
return new nsDisplayItemGenericImageGeometry(this, aBuilder);
|
|
}
|
|
|
|
void nsDisplayXULImage::ComputeInvalidationRegion(
|
|
nsDisplayListBuilder* aBuilder, const nsDisplayItemGeometry* aGeometry,
|
|
nsRegion* aInvalidRegion) const {
|
|
auto boxFrame = static_cast<nsImageBoxFrame*>(mFrame);
|
|
auto geometry =
|
|
static_cast<const nsDisplayItemGenericImageGeometry*>(aGeometry);
|
|
|
|
if (aBuilder->ShouldSyncDecodeImages() && boxFrame->mImageRequest &&
|
|
geometry->ShouldInvalidateToSyncDecodeImages()) {
|
|
bool snap;
|
|
aInvalidRegion->Or(*aInvalidRegion, GetBounds(aBuilder, &snap));
|
|
}
|
|
|
|
nsDisplayImageContainer::ComputeInvalidationRegion(aBuilder, aGeometry,
|
|
aInvalidRegion);
|
|
}
|
|
|
|
bool nsDisplayXULImage::CanOptimizeToImageLayer(
|
|
LayerManager* aManager, nsDisplayListBuilder* aBuilder) {
|
|
nsImageBoxFrame* imageFrame = static_cast<nsImageBoxFrame*>(mFrame);
|
|
if (!imageFrame->CanOptimizeToImageLayer()) {
|
|
return false;
|
|
}
|
|
|
|
return nsDisplayImageContainer::CanOptimizeToImageLayer(aManager, aBuilder);
|
|
}
|
|
|
|
already_AddRefed<imgIContainer> nsDisplayXULImage::GetImage() {
|
|
nsImageBoxFrame* imageFrame = static_cast<nsImageBoxFrame*>(mFrame);
|
|
if (!imageFrame->mImageRequest) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsCOMPtr<imgIContainer> imgCon;
|
|
imageFrame->mImageRequest->GetImage(getter_AddRefs(imgCon));
|
|
|
|
return imgCon.forget();
|
|
}
|
|
|
|
nsRect nsDisplayXULImage::GetDestRect() const {
|
|
Maybe<nsPoint> anchorPoint;
|
|
return static_cast<nsImageBoxFrame*>(mFrame)->GetDestRect(ToReferenceFrame(),
|
|
anchorPoint);
|
|
}
|
|
|
|
bool nsImageBoxFrame::CanOptimizeToImageLayer() {
|
|
bool hasSubRect = !mUseSrcAttr && (mSubRect.width > 0 || mSubRect.height > 0);
|
|
if (hasSubRect) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
imgRequestProxy* nsImageBoxFrame::GetRequestFromStyle() {
|
|
const nsStyleDisplay* disp = StyleDisplay();
|
|
if (disp->HasAppearance()) {
|
|
nsPresContext* pc = PresContext();
|
|
if (pc->Theme()->ThemeSupportsWidget(pc, this,
|
|
disp->EffectiveAppearance())) {
|
|
return nullptr;
|
|
}
|
|
}
|
|
return StyleList()->mListStyleImage.GetImageRequest();
|
|
}
|
|
|
|
/* virtual */
|
|
void nsImageBoxFrame::DidSetComputedStyle(ComputedStyle* aOldStyle) {
|
|
nsLeafBoxFrame::DidSetComputedStyle(aOldStyle);
|
|
|
|
// Fetch our subrect.
|
|
const nsStyleList* myList = StyleList();
|
|
mSubRect = myList->GetImageRegion(); // before |mSuppressStyleCheck| test!
|
|
|
|
if (mUseSrcAttr || mSuppressStyleCheck)
|
|
return; // No more work required, since the image isn't specified by style.
|
|
|
|
// If the image to use changes, we have a new image.
|
|
nsCOMPtr<nsIURI> oldURI, newURI;
|
|
if (mImageRequest) {
|
|
mImageRequest->GetURI(getter_AddRefs(oldURI));
|
|
}
|
|
if (auto* newImage = GetRequestFromStyle()) {
|
|
newImage->GetURI(getter_AddRefs(newURI));
|
|
}
|
|
bool equal;
|
|
if (newURI == oldURI || // handles null==null
|
|
(newURI && oldURI && NS_SUCCEEDED(newURI->Equals(oldURI, &equal)) &&
|
|
equal)) {
|
|
return;
|
|
}
|
|
|
|
UpdateImage();
|
|
} // DidSetComputedStyle
|
|
|
|
void nsImageBoxFrame::GetImageSize() {
|
|
if (mIntrinsicSize.width > 0 && mIntrinsicSize.height > 0) {
|
|
mImageSize.width = mIntrinsicSize.width;
|
|
mImageSize.height = mIntrinsicSize.height;
|
|
} else {
|
|
mImageSize.width = 0;
|
|
mImageSize.height = 0;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Ok return our dimensions
|
|
*/
|
|
nsSize nsImageBoxFrame::GetXULPrefSize(nsBoxLayoutState& aState) {
|
|
nsSize size(0, 0);
|
|
DISPLAY_PREF_SIZE(this, size);
|
|
if (XULNeedsRecalc(mImageSize)) {
|
|
GetImageSize();
|
|
}
|
|
|
|
if (!mUseSrcAttr && (mSubRect.width > 0 || mSubRect.height > 0)) {
|
|
size = mSubRect.Size();
|
|
} else {
|
|
size = mImageSize;
|
|
}
|
|
|
|
nsSize intrinsicSize = size;
|
|
|
|
nsMargin borderPadding(0, 0, 0, 0);
|
|
GetXULBorderAndPadding(borderPadding);
|
|
size.width += borderPadding.LeftRight();
|
|
size.height += borderPadding.TopBottom();
|
|
|
|
bool widthSet, heightSet;
|
|
nsIFrame::AddXULPrefSize(this, size, widthSet, heightSet);
|
|
NS_ASSERTION(
|
|
size.width != NS_UNCONSTRAINEDSIZE && size.height != NS_UNCONSTRAINEDSIZE,
|
|
"non-intrinsic size expected");
|
|
|
|
nsSize minSize = GetXULMinSize(aState);
|
|
nsSize maxSize = GetXULMaxSize(aState);
|
|
|
|
if (!widthSet && !heightSet) {
|
|
if (minSize.width != NS_UNCONSTRAINEDSIZE)
|
|
minSize.width -= borderPadding.LeftRight();
|
|
if (minSize.height != NS_UNCONSTRAINEDSIZE)
|
|
minSize.height -= borderPadding.TopBottom();
|
|
if (maxSize.width != NS_UNCONSTRAINEDSIZE)
|
|
maxSize.width -= borderPadding.LeftRight();
|
|
if (maxSize.height != NS_UNCONSTRAINEDSIZE)
|
|
maxSize.height -= borderPadding.TopBottom();
|
|
|
|
size = nsLayoutUtils::ComputeAutoSizeWithIntrinsicDimensions(
|
|
minSize.width, minSize.height, maxSize.width, maxSize.height,
|
|
intrinsicSize.width, intrinsicSize.height);
|
|
NS_ASSERTION(size.width != NS_UNCONSTRAINEDSIZE &&
|
|
size.height != NS_UNCONSTRAINEDSIZE,
|
|
"non-intrinsic size expected");
|
|
size.width += borderPadding.LeftRight();
|
|
size.height += borderPadding.TopBottom();
|
|
return size;
|
|
}
|
|
|
|
if (!widthSet) {
|
|
if (intrinsicSize.height > 0) {
|
|
// Subtract off the border and padding from the height because the
|
|
// content-box needs to be used to determine the ratio
|
|
nscoord height = size.height - borderPadding.TopBottom();
|
|
size.width = nscoord(int64_t(height) * int64_t(intrinsicSize.width) /
|
|
int64_t(intrinsicSize.height));
|
|
} else {
|
|
size.width = intrinsicSize.width;
|
|
}
|
|
|
|
size.width += borderPadding.LeftRight();
|
|
} else if (!heightSet) {
|
|
if (intrinsicSize.width > 0) {
|
|
nscoord width = size.width - borderPadding.LeftRight();
|
|
size.height = nscoord(int64_t(width) * int64_t(intrinsicSize.height) /
|
|
int64_t(intrinsicSize.width));
|
|
} else {
|
|
size.height = intrinsicSize.height;
|
|
}
|
|
|
|
size.height += borderPadding.TopBottom();
|
|
}
|
|
|
|
return XULBoundsCheck(minSize, size, maxSize);
|
|
}
|
|
|
|
nsSize nsImageBoxFrame::GetXULMinSize(nsBoxLayoutState& aState) {
|
|
// An image can always scale down to (0,0).
|
|
nsSize size(0, 0);
|
|
DISPLAY_MIN_SIZE(this, size);
|
|
AddXULBorderAndPadding(size);
|
|
bool widthSet, heightSet;
|
|
nsIFrame::AddXULMinSize(this, size, widthSet, heightSet);
|
|
return size;
|
|
}
|
|
|
|
nscoord nsImageBoxFrame::GetXULBoxAscent(nsBoxLayoutState& aState) {
|
|
return GetXULPrefSize(aState).height;
|
|
}
|
|
|
|
#ifdef DEBUG_FRAME_DUMP
|
|
nsresult nsImageBoxFrame::GetFrameName(nsAString& aResult) const {
|
|
return MakeFrameName(u"ImageBox"_ns, aResult);
|
|
}
|
|
#endif
|
|
|
|
void nsImageBoxFrame::Notify(imgIRequest* aRequest, int32_t aType,
|
|
const nsIntRect* aData) {
|
|
if (aType == imgINotificationObserver::SIZE_AVAILABLE) {
|
|
nsCOMPtr<imgIContainer> image;
|
|
aRequest->GetImage(getter_AddRefs(image));
|
|
return OnSizeAvailable(aRequest, image);
|
|
}
|
|
|
|
if (aType == imgINotificationObserver::DECODE_COMPLETE) {
|
|
return OnDecodeComplete(aRequest);
|
|
}
|
|
|
|
if (aType == imgINotificationObserver::LOAD_COMPLETE) {
|
|
uint32_t imgStatus;
|
|
aRequest->GetImageStatus(&imgStatus);
|
|
nsresult status =
|
|
imgStatus & imgIRequest::STATUS_ERROR ? NS_ERROR_FAILURE : NS_OK;
|
|
return OnLoadComplete(aRequest, status);
|
|
}
|
|
|
|
if (aType == imgINotificationObserver::IS_ANIMATED) {
|
|
return OnImageIsAnimated(aRequest);
|
|
}
|
|
|
|
if (aType == imgINotificationObserver::FRAME_UPDATE) {
|
|
return OnFrameUpdate(aRequest);
|
|
}
|
|
}
|
|
|
|
void nsImageBoxFrame::OnSizeAvailable(imgIRequest* aRequest,
|
|
imgIContainer* aImage) {
|
|
if (NS_WARN_IF(!aImage)) {
|
|
return;
|
|
}
|
|
|
|
// Ensure the animation (if any) is started. Note: There is no
|
|
// corresponding call to Decrement for this. This Increment will be
|
|
// 'cleaned up' by the Request when it is destroyed, but only then.
|
|
aRequest->IncrementAnimationConsumers();
|
|
|
|
aImage->SetAnimationMode(PresContext()->ImageAnimationMode());
|
|
|
|
nscoord w, h;
|
|
aImage->GetWidth(&w);
|
|
aImage->GetHeight(&h);
|
|
|
|
mIntrinsicSize.SizeTo(nsPresContext::CSSPixelsToAppUnits(w),
|
|
nsPresContext::CSSPixelsToAppUnits(h));
|
|
|
|
if (!HasAnyStateBits(NS_FRAME_FIRST_REFLOW)) {
|
|
PresShell()->FrameNeedsReflow(this, IntrinsicDirty::StyleChange,
|
|
NS_FRAME_IS_DIRTY);
|
|
}
|
|
}
|
|
|
|
void nsImageBoxFrame::OnDecodeComplete(imgIRequest* aRequest) {
|
|
nsBoxLayoutState state(PresContext());
|
|
this->XULRedraw(state);
|
|
}
|
|
|
|
void nsImageBoxFrame::OnLoadComplete(imgIRequest* aRequest, nsresult aStatus) {
|
|
if (NS_SUCCEEDED(aStatus)) {
|
|
// Fire an onload DOM event.
|
|
FireImageDOMEvent(mContent, eLoad);
|
|
} else {
|
|
// Fire an onerror DOM event.
|
|
mIntrinsicSize.SizeTo(0, 0);
|
|
PresShell()->FrameNeedsReflow(this, IntrinsicDirty::StyleChange,
|
|
NS_FRAME_IS_DIRTY);
|
|
FireImageDOMEvent(mContent, eLoadError);
|
|
}
|
|
}
|
|
|
|
void nsImageBoxFrame::OnImageIsAnimated(imgIRequest* aRequest) {
|
|
// Register with our refresh driver, if we're animated.
|
|
nsLayoutUtils::RegisterImageRequest(PresContext(), aRequest,
|
|
&mRequestRegistered);
|
|
}
|
|
|
|
void nsImageBoxFrame::OnFrameUpdate(imgIRequest* aRequest) {
|
|
if ((0 == mRect.width) || (0 == mRect.height)) {
|
|
return;
|
|
}
|
|
|
|
// Check if WebRender has interacted with this frame. If it has
|
|
// we need to let it know that things have changed.
|
|
const auto type = DisplayItemType::TYPE_XUL_IMAGE;
|
|
const auto producerId = aRequest->GetProducerId();
|
|
if (WebRenderUserData::ProcessInvalidateForImage(this, type, producerId)) {
|
|
return;
|
|
}
|
|
|
|
InvalidateLayer(type);
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS(nsImageBoxListener, imgINotificationObserver)
|
|
|
|
nsImageBoxListener::nsImageBoxListener(nsImageBoxFrame* frame)
|
|
: mFrame(frame) {}
|
|
|
|
nsImageBoxListener::~nsImageBoxListener() = default;
|
|
|
|
void nsImageBoxListener::Notify(imgIRequest* request, int32_t aType,
|
|
const nsIntRect* aData) {
|
|
if (!mFrame) {
|
|
return;
|
|
}
|
|
|
|
return mFrame->Notify(request, aType, aData);
|
|
}
|