forked from mirrors/gecko-dev
8610fab55a
Use the ImageRendering needed for Bug 1488555 to provide the correct ImageRendering argument for the PushImage call at the end of CreateWebRenderCommandsForImage instead of always using Auto filtering.
1431 lines
47 KiB
C++
1431 lines
47 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* rendering object for list-item bullets */
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#include "nsBulletFrame.h"
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#include "gfx2DGlue.h"
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#include "gfxContext.h"
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#include "gfxPrefs.h"
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#include "gfxUtils.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/gfx/PathHelpers.h"
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#include "mozilla/layers/LayersMessages.h"
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#include "mozilla/layers/StackingContextHelper.h"
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#include "mozilla/layers/WebRenderLayerManager.h"
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#include "mozilla/layers/WebRenderMessages.h"
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#include "mozilla/MathAlgorithms.h"
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#include "mozilla/Move.h"
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#include "nsCOMPtr.h"
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#include "nsFontMetrics.h"
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#include "nsGkAtoms.h"
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#include "nsGenericHTMLElement.h"
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#include "nsAttrValueInlines.h"
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#include "nsPresContext.h"
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#include "nsIPresShell.h"
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#include "nsIDocument.h"
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#include "nsDisplayList.h"
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#include "nsCounterManager.h"
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#include "nsBidiUtils.h"
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#include "CounterStyleManager.h"
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#include "UnitTransforms.h"
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#include "imgIContainer.h"
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#include "ImageLayers.h"
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#include "imgRequestProxy.h"
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#include "nsIURI.h"
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#include "SVGImageContext.h"
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#include "TextDrawTarget.h"
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#include "mozilla/layers/WebRenderBridgeChild.h"
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#include <algorithm>
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#ifdef ACCESSIBILITY
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#include "nsAccessibilityService.h"
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#endif
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using namespace mozilla;
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using namespace mozilla::gfx;
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using namespace mozilla::image;
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using namespace mozilla::layout;
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NS_DECLARE_FRAME_PROPERTY_SMALL_VALUE(FontSizeInflationProperty, float)
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NS_IMPL_FRAMEARENA_HELPERS(nsBulletFrame)
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#ifdef DEBUG
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NS_QUERYFRAME_HEAD(nsBulletFrame)
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NS_QUERYFRAME_ENTRY(nsBulletFrame)
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NS_QUERYFRAME_TAIL_INHERITING(nsFrame)
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#endif
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nsBulletFrame::~nsBulletFrame()
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{
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}
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void
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nsBulletFrame::DestroyFrom(nsIFrame* aDestructRoot, PostDestroyData& aPostDestroyData)
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{
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// Stop image loading first.
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DeregisterAndCancelImageRequest();
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if (mListener) {
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mListener->SetFrame(nullptr);
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}
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// Let base class do the rest
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nsFrame::DestroyFrom(aDestructRoot, aPostDestroyData);
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}
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#ifdef DEBUG_FRAME_DUMP
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nsresult
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nsBulletFrame::GetFrameName(nsAString& aResult) const
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{
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return MakeFrameName(NS_LITERAL_STRING("Bullet"), aResult);
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}
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#endif
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bool
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nsBulletFrame::IsEmpty()
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{
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return IsSelfEmpty();
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}
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bool
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nsBulletFrame::IsSelfEmpty()
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{
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return StyleList()->mCounterStyle->IsNone();
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}
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/* virtual */ void
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nsBulletFrame::DidSetComputedStyle(ComputedStyle* aOldComputedStyle)
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{
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nsFrame::DidSetComputedStyle(aOldComputedStyle);
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imgRequestProxy *newRequest = StyleList()->GetListStyleImage();
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if (newRequest) {
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if (!mListener) {
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mListener = new nsBulletListener();
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mListener->SetFrame(this);
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}
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bool needNewRequest = true;
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if (mImageRequest) {
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// Reload the image, maybe...
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nsCOMPtr<nsIURI> oldURI;
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mImageRequest->GetURI(getter_AddRefs(oldURI));
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nsCOMPtr<nsIURI> newURI;
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newRequest->GetURI(getter_AddRefs(newURI));
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if (oldURI && newURI) {
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bool same;
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newURI->Equals(oldURI, &same);
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if (same) {
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needNewRequest = false;
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}
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}
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}
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if (needNewRequest) {
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RefPtr<imgRequestProxy> newRequestClone;
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newRequest->SyncClone(mListener,
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PresContext()->Document(),
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getter_AddRefs(newRequestClone));
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// Deregister the old request. We wait until after Clone is done in case
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// the old request and the new request are the same underlying image
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// accessed via different URLs.
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DeregisterAndCancelImageRequest();
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// Register the new request.
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mImageRequest = std::move(newRequestClone);
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RegisterImageRequest(/* aKnownToBeAnimated = */ false);
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}
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} else {
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// No image request on the new ComputedStyle.
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DeregisterAndCancelImageRequest();
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}
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#ifdef ACCESSIBILITY
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// Update the list bullet accessible. If old style list isn't available then
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// no need to update the accessible tree because it's not created yet.
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if (aOldComputedStyle) {
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nsAccessibilityService* accService = nsIPresShell::AccService();
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if (accService) {
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const nsStyleList* oldStyleList = aOldComputedStyle->PeekStyleList();
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if (oldStyleList) {
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bool hadBullet = oldStyleList->GetListStyleImage() ||
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!oldStyleList->mCounterStyle->IsNone();
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const nsStyleList* newStyleList = StyleList();
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bool hasBullet = newStyleList->GetListStyleImage() ||
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!newStyleList->mCounterStyle->IsNone();
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if (hadBullet != hasBullet) {
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accService->UpdateListBullet(PresContext()->GetPresShell(), mContent,
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hasBullet);
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}
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}
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}
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}
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#endif
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}
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class nsDisplayBulletGeometry
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: public nsDisplayItemGenericGeometry
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, public nsImageGeometryMixin<nsDisplayBulletGeometry>
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{
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public:
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nsDisplayBulletGeometry(nsDisplayItem* aItem, nsDisplayListBuilder* aBuilder)
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: nsDisplayItemGenericGeometry(aItem, aBuilder)
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, nsImageGeometryMixin(aItem, aBuilder)
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{
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nsBulletFrame* f = static_cast<nsBulletFrame*>(aItem->Frame());
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mOrdinal = f->GetOrdinal();
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}
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virtual bool InvalidateForSyncDecodeImages() const override
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{
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return ShouldInvalidateToSyncDecodeImages();
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}
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int32_t mOrdinal;
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};
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class BulletRenderer final
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{
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public:
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BulletRenderer(imgIContainer* image, const nsRect& dest)
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: mImage(image)
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, mDest(dest)
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, mColor(NS_RGBA(0, 0, 0, 0))
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, mListStyleType(NS_STYLE_LIST_STYLE_NONE)
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{
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MOZ_ASSERT(IsImageType());
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}
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BulletRenderer(Path* path, nscolor color, int32_t listStyleType)
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: mColor(color)
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, mPath(path)
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, mListStyleType(listStyleType)
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{
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MOZ_ASSERT(IsPathType());
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}
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BulletRenderer(const LayoutDeviceRect& aPathRect, nscolor color, int32_t listStyleType)
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: mPathRect(aPathRect)
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, mColor(color)
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, mListStyleType(listStyleType)
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{
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MOZ_ASSERT(IsPathType());
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}
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BulletRenderer(const nsString& text,
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nsFontMetrics* fm,
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nscolor color,
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const nsPoint& point,
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int32_t listStyleType)
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: mColor(color)
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, mText(text)
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, mFontMetrics(fm)
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, mPoint(point)
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, mListStyleType(listStyleType)
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{
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MOZ_ASSERT(IsTextType());
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}
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bool
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CreateWebRenderCommands(nsDisplayItem* aItem,
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wr::DisplayListBuilder& aBuilder,
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wr::IpcResourceUpdateQueue& aResources,
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const layers::StackingContextHelper& aSc,
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mozilla::layers::WebRenderLayerManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder);
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ImgDrawResult
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Paint(gfxContext& aRenderingContext, nsPoint aPt,
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const nsRect& aDirtyRect, uint32_t aFlags,
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bool aDisableSubpixelAA, nsIFrame* aFrame);
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bool
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IsImageType() const
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{
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return mListStyleType == NS_STYLE_LIST_STYLE_NONE && mImage;
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}
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bool
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IsPathType() const
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{
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return mListStyleType == NS_STYLE_LIST_STYLE_DISC ||
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mListStyleType == NS_STYLE_LIST_STYLE_CIRCLE ||
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mListStyleType == NS_STYLE_LIST_STYLE_SQUARE ||
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mListStyleType == NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN ||
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mListStyleType == NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED;
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}
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bool
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IsTextType() const
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{
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return mListStyleType != NS_STYLE_LIST_STYLE_NONE &&
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mListStyleType != NS_STYLE_LIST_STYLE_DISC &&
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mListStyleType != NS_STYLE_LIST_STYLE_CIRCLE &&
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mListStyleType != NS_STYLE_LIST_STYLE_SQUARE &&
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mListStyleType != NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN &&
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mListStyleType != NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED &&
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!mText.IsEmpty();
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}
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void
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PaintTextToContext(nsIFrame* aFrame,
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gfxContext* aCtx,
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bool aDisableSubpixelAA);
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bool
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IsImageContainerAvailable(layers::LayerManager* aManager, uint32_t aFlags);
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private:
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bool
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CreateWebRenderCommandsForImage(nsDisplayItem* aItem,
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wr::DisplayListBuilder& aBuilder,
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wr::IpcResourceUpdateQueue& aResources,
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const layers::StackingContextHelper& aSc,
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mozilla::layers::WebRenderLayerManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder);
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bool
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CreateWebRenderCommandsForPath(nsDisplayItem* aItem,
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wr::DisplayListBuilder& aBuilder,
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wr::IpcResourceUpdateQueue& aResources,
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const layers::StackingContextHelper& aSc,
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mozilla::layers::WebRenderLayerManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder);
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bool
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CreateWebRenderCommandsForText(nsDisplayItem* aItem,
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wr::DisplayListBuilder& aBuilder,
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wr::IpcResourceUpdateQueue& aResources,
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const layers::StackingContextHelper& aSc,
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mozilla::layers::WebRenderLayerManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder);
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private:
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// mImage and mDest are the properties for list-style-image.
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// mImage is the image content and mDest is the image position.
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RefPtr<imgIContainer> mImage;
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nsRect mDest;
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// Some bullet types are stored as a rect (in device pixels) instead of a Path to allow
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// generating proper WebRender commands. When webrender is disabled the Path is lazily created
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// for these items before painting.
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// TODO: The size of this structure doesn't seem to be an issue since it has so many fields
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// that are specific to a bullet style or another, but if it becomes one we can easily
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// store mDest and mPathRect into the same memory location since they are never used by
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// the same bullet types.
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LayoutDeviceRect mPathRect;
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// mColor indicate the color of list-style. Both text and path type would use this memeber.
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nscolor mColor;
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// mPath record the path of the list-style for later drawing.
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// Included following types: square, circle, disc, disclosure open and disclosure closed.
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RefPtr<Path> mPath;
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// mText, mFontMertrics, mPoint, mFont and mGlyphs are for other
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// list-style-type which can be drawed by text.
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nsString mText;
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RefPtr<nsFontMetrics> mFontMetrics;
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nsPoint mPoint;
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RefPtr<ScaledFont> mFont;
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nsTArray<layers::GlyphArray> mGlyphs;
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// Store the type of list-style-type.
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int32_t mListStyleType;
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};
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bool
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BulletRenderer::CreateWebRenderCommands(nsDisplayItem* aItem,
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wr::DisplayListBuilder& aBuilder,
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wr::IpcResourceUpdateQueue& aResources,
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const layers::StackingContextHelper& aSc,
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mozilla::layers::WebRenderLayerManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder)
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{
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if (IsImageType()) {
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return CreateWebRenderCommandsForImage(aItem, aBuilder, aResources,
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aSc, aManager, aDisplayListBuilder);
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} else if (IsPathType()) {
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return CreateWebRenderCommandsForPath(aItem, aBuilder, aResources,
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aSc, aManager, aDisplayListBuilder);
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} else {
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MOZ_ASSERT(IsTextType());
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return CreateWebRenderCommandsForText(aItem, aBuilder, aResources, aSc,
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aManager, aDisplayListBuilder);
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}
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}
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ImgDrawResult
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BulletRenderer::Paint(gfxContext& aRenderingContext, nsPoint aPt,
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const nsRect& aDirtyRect, uint32_t aFlags,
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bool aDisableSubpixelAA, nsIFrame* aFrame)
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{
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if (IsImageType()) {
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SamplingFilter filter = nsLayoutUtils::GetSamplingFilterForFrame(aFrame);
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return nsLayoutUtils::DrawSingleImage(aRenderingContext,
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aFrame->PresContext(), mImage, filter,
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mDest, aDirtyRect,
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/* no SVGImageContext */ Nothing(),
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aFlags);
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}
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if (IsPathType()) {
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DrawTarget* drawTarget = aRenderingContext.GetDrawTarget();
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if (!mPath) {
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RefPtr<PathBuilder> builder = drawTarget->CreatePathBuilder();
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switch (mListStyleType) {
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case NS_STYLE_LIST_STYLE_CIRCLE:
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case NS_STYLE_LIST_STYLE_DISC:
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AppendEllipseToPath(builder, mPathRect.Center().ToUnknownPoint(), mPathRect.Size().ToUnknownSize());
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break;
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case NS_STYLE_LIST_STYLE_SQUARE:
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AppendRectToPath(builder, mPathRect.ToUnknownRect());
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break;
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default:
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MOZ_ASSERT(false, "Should have a parth.");
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}
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mPath = builder->Finish();
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}
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switch (mListStyleType) {
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case NS_STYLE_LIST_STYLE_CIRCLE:
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drawTarget->Stroke(mPath, ColorPattern(ToDeviceColor(mColor)));
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break;
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case NS_STYLE_LIST_STYLE_DISC:
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case NS_STYLE_LIST_STYLE_SQUARE:
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case NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED:
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case NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN:
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drawTarget->Fill(mPath, ColorPattern(ToDeviceColor(mColor)));
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break;
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default:
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MOZ_CRASH("unreachable");
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}
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}
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if (IsTextType()) {
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PaintTextToContext(aFrame, &aRenderingContext, aDisableSubpixelAA);
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}
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return ImgDrawResult::SUCCESS;
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}
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void
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BulletRenderer::PaintTextToContext(nsIFrame* aFrame,
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gfxContext* aCtx,
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bool aDisableSubpixelAA)
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{
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MOZ_ASSERT(IsTextType());
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DrawTarget* drawTarget = aCtx->GetDrawTarget();
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DrawTargetAutoDisableSubpixelAntialiasing
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disable(drawTarget, aDisableSubpixelAA);
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aCtx->SetColor(Color::FromABGR(mColor));
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nsPresContext* presContext = aFrame->PresContext();
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if (!presContext->BidiEnabled() && HasRTLChars(mText)) {
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presContext->SetBidiEnabled();
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}
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nsLayoutUtils::DrawString(aFrame, *mFontMetrics, aCtx,
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mText.get(), mText.Length(), mPoint);
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}
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bool
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BulletRenderer::IsImageContainerAvailable(layers::LayerManager* aManager, uint32_t aFlags)
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{
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MOZ_ASSERT(IsImageType());
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return mImage->IsImageContainerAvailable(aManager, aFlags);
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}
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bool
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BulletRenderer::CreateWebRenderCommandsForImage(nsDisplayItem* aItem,
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wr::DisplayListBuilder& aBuilder,
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wr::IpcResourceUpdateQueue& aResources,
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const layers::StackingContextHelper& aSc,
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mozilla::layers::WebRenderLayerManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder)
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{
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MOZ_RELEASE_ASSERT(IsImageType());
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MOZ_RELEASE_ASSERT(mImage);
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uint32_t flags = imgIContainer::FLAG_ASYNC_NOTIFY;
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if (aDisplayListBuilder->IsPaintingToWindow()) {
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flags |= imgIContainer::FLAG_HIGH_QUALITY_SCALING;
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}
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if (aDisplayListBuilder->ShouldSyncDecodeImages()) {
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flags |= imgIContainer::FLAG_SYNC_DECODE;
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}
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const int32_t appUnitsPerDevPixel = aItem->Frame()->PresContext()->AppUnitsPerDevPixel();
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LayoutDeviceRect destRect = LayoutDeviceRect::FromAppUnits(mDest, appUnitsPerDevPixel);
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Maybe<SVGImageContext> svgContext;
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gfx::IntSize decodeSize =
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nsLayoutUtils::ComputeImageContainerDrawingParameters(mImage, aItem->Frame(), destRect,
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aSc, flags, svgContext);
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RefPtr<layers::ImageContainer> container =
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mImage->GetImageContainerAtSize(aManager, decodeSize, svgContext, flags);
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if (!container) {
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return false;
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}
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mozilla::wr::ImageRendering rendering = wr::ToImageRendering(
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nsLayoutUtils::GetSamplingFilterForFrame(aItem->Frame()));
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gfx::IntSize size;
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Maybe<wr::ImageKey> key = aManager->CommandBuilder().CreateImageKey(
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aItem, container, aBuilder, aResources, rendering, aSc, size, Nothing());
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if (key.isNothing()) {
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return true; // Nothing to do
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}
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wr::LayoutRect dest = wr::ToRoundedLayoutRect(destRect);
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aBuilder.PushImage(
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dest, dest, !aItem->BackfaceIsHidden(), rendering, key.value());
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return true;
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}
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bool
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BulletRenderer::CreateWebRenderCommandsForPath(nsDisplayItem* aItem,
|
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wr::DisplayListBuilder& aBuilder,
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wr::IpcResourceUpdateQueue& aResources,
|
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const layers::StackingContextHelper& aSc,
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mozilla::layers::WebRenderLayerManager* aManager,
|
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nsDisplayListBuilder* aDisplayListBuilder)
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{
|
|
MOZ_ASSERT(IsPathType());
|
|
wr::LayoutRect dest = wr::ToRoundedLayoutRect(mPathRect);
|
|
auto color = wr::ToColorF(ToDeviceColor(mColor));
|
|
bool isBackfaceVisible = !aItem->BackfaceIsHidden();
|
|
switch (mListStyleType) {
|
|
case NS_STYLE_LIST_STYLE_CIRCLE: {
|
|
LayoutDeviceSize radii = mPathRect.Size() / 2.0;
|
|
auto borderWidths = wr::ToBorderWidths(1.0, 1.0, 1.0, 1.0);
|
|
wr::BorderSide side = { color, wr::BorderStyle::Solid };
|
|
wr::BorderSide sides[4] = { side, side, side, side };
|
|
Range<const wr::BorderSide> sidesRange(sides, 4);
|
|
aBuilder.PushBorder(dest, dest, isBackfaceVisible, borderWidths,
|
|
sidesRange,
|
|
wr::ToBorderRadius(radii, radii, radii, radii));
|
|
return true;
|
|
}
|
|
case NS_STYLE_LIST_STYLE_DISC: {
|
|
nsTArray<wr::ComplexClipRegion> clips;
|
|
clips.AppendElement(wr::ToComplexClipRegion(
|
|
RoundedRect(mPathRect.ToUnknownRect(),
|
|
RectCornerRadii(dest.size.width / 2.0))
|
|
));
|
|
auto clipId = aBuilder.DefineClip(Nothing(), dest, &clips, nullptr);
|
|
aBuilder.PushClip(clipId);
|
|
aBuilder.PushRect(dest, dest, isBackfaceVisible, color);
|
|
aBuilder.PopClip();
|
|
return true;
|
|
}
|
|
case NS_STYLE_LIST_STYLE_SQUARE: {
|
|
aBuilder.PushRect(dest, dest, isBackfaceVisible, color);
|
|
return true;
|
|
}
|
|
default:
|
|
if (!aManager->CommandBuilder().PushItemAsImage(aItem, aBuilder, aResources, aSc, aDisplayListBuilder)) {
|
|
NS_WARNING("Fail to create WebRender commands for Bullet path.");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
BulletRenderer::CreateWebRenderCommandsForText(nsDisplayItem* aItem,
|
|
wr::DisplayListBuilder& aBuilder,
|
|
wr::IpcResourceUpdateQueue& aResources,
|
|
const layers::StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
MOZ_ASSERT(IsTextType());
|
|
|
|
bool dummy;
|
|
nsRect bounds = aItem->GetBounds(aDisplayListBuilder, &dummy);
|
|
|
|
if (bounds.IsEmpty()) {
|
|
return true;
|
|
}
|
|
|
|
RefPtr<TextDrawTarget> textDrawer = new TextDrawTarget(aBuilder, aResources, aSc, aManager, aItem, bounds);
|
|
RefPtr<gfxContext> captureCtx = gfxContext::CreateOrNull(textDrawer);
|
|
PaintTextToContext(aItem->Frame(), captureCtx, aItem->IsSubpixelAADisabled());
|
|
textDrawer->TerminateShadows();
|
|
|
|
return !textDrawer->HasUnsupportedFeatures();
|
|
}
|
|
|
|
class nsDisplayBullet final : public nsDisplayItem {
|
|
public:
|
|
nsDisplayBullet(nsDisplayListBuilder* aBuilder, nsBulletFrame* aFrame)
|
|
: nsDisplayItem(aBuilder, aFrame)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayBullet);
|
|
}
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
virtual ~nsDisplayBullet() {
|
|
MOZ_COUNT_DTOR(nsDisplayBullet);
|
|
}
|
|
#endif
|
|
|
|
virtual nsRect GetBounds(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const override
|
|
{
|
|
*aSnap = false;
|
|
return mFrame->GetVisualOverflowRectRelativeToSelf() + ToReferenceFrame();
|
|
}
|
|
|
|
virtual bool CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue&,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder) override;
|
|
|
|
virtual void HitTest(nsDisplayListBuilder* aBuilder, const nsRect& aRect,
|
|
HitTestState* aState,
|
|
nsTArray<nsIFrame*> *aOutFrames) override {
|
|
aOutFrames->AppendElement(mFrame);
|
|
}
|
|
virtual void Paint(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx) override;
|
|
NS_DISPLAY_DECL_NAME("Bullet", TYPE_BULLET)
|
|
|
|
virtual nsRect GetComponentAlphaBounds(nsDisplayListBuilder* aBuilder) const override
|
|
{
|
|
bool snap;
|
|
return GetBounds(aBuilder, &snap);
|
|
}
|
|
|
|
virtual nsDisplayItemGeometry* AllocateGeometry(nsDisplayListBuilder* aBuilder) override
|
|
{
|
|
return new nsDisplayBulletGeometry(this, aBuilder);
|
|
}
|
|
|
|
virtual void ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayItemGeometry* aGeometry,
|
|
nsRegion *aInvalidRegion) const override
|
|
{
|
|
const nsDisplayBulletGeometry* geometry = static_cast<const nsDisplayBulletGeometry*>(aGeometry);
|
|
nsBulletFrame* f = static_cast<nsBulletFrame*>(mFrame);
|
|
|
|
if (f->GetOrdinal() != geometry->mOrdinal) {
|
|
bool snap;
|
|
aInvalidRegion->Or(geometry->mBounds, GetBounds(aBuilder, &snap));
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<imgIContainer> image = f->GetImage();
|
|
if (aBuilder->ShouldSyncDecodeImages() && image &&
|
|
geometry->ShouldInvalidateToSyncDecodeImages()) {
|
|
bool snap;
|
|
aInvalidRegion->Or(*aInvalidRegion, GetBounds(aBuilder, &snap));
|
|
}
|
|
|
|
return nsDisplayItem::ComputeInvalidationRegion(aBuilder, aGeometry, aInvalidRegion);
|
|
}
|
|
|
|
protected:
|
|
Maybe<BulletRenderer> mBulletRenderer;
|
|
};
|
|
|
|
bool
|
|
nsDisplayBullet::CreateWebRenderCommands(wr::DisplayListBuilder& aBuilder,
|
|
wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
// FIXME: avoid needing to make this target if we're drawing text
|
|
// (non-trivial refactor of all this code)
|
|
RefPtr<gfxContext> screenRefCtx = gfxContext::CreateOrNull(
|
|
gfxPlatform::GetPlatform()->ScreenReferenceDrawTarget().get());
|
|
Maybe<BulletRenderer> br = static_cast<nsBulletFrame*>(mFrame)->
|
|
CreateBulletRenderer(*screenRefCtx, ToReferenceFrame());
|
|
|
|
if (!br) {
|
|
return false;
|
|
}
|
|
|
|
return br->CreateWebRenderCommands(this, aBuilder, aResources, aSc,
|
|
aManager, aDisplayListBuilder);
|
|
}
|
|
|
|
void nsDisplayBullet::Paint(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx)
|
|
{
|
|
uint32_t flags = imgIContainer::FLAG_NONE;
|
|
if (aBuilder->ShouldSyncDecodeImages()) {
|
|
flags |= imgIContainer::FLAG_SYNC_DECODE;
|
|
}
|
|
|
|
ImgDrawResult result = static_cast<nsBulletFrame*>(mFrame)->
|
|
PaintBullet(*aCtx, ToReferenceFrame(), GetPaintRect(), flags,
|
|
mDisableSubpixelAA);
|
|
|
|
nsDisplayBulletGeometry::UpdateDrawResult(this, result);
|
|
}
|
|
|
|
void
|
|
nsBulletFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayListSet& aLists)
|
|
{
|
|
if (!IsVisibleForPainting(aBuilder))
|
|
return;
|
|
|
|
DO_GLOBAL_REFLOW_COUNT_DSP("nsBulletFrame");
|
|
|
|
aLists.Content()->AppendToTop(
|
|
MakeDisplayItem<nsDisplayBullet>(aBuilder, this));
|
|
}
|
|
|
|
Maybe<BulletRenderer>
|
|
nsBulletFrame::CreateBulletRenderer(gfxContext& aRenderingContext, nsPoint aPt)
|
|
{
|
|
const nsStyleList* myList = StyleList();
|
|
CounterStyle* listStyleType = myList->mCounterStyle;
|
|
nsMargin padding = mPadding.GetPhysicalMargin(GetWritingMode());
|
|
|
|
if (myList->GetListStyleImage() && mImageRequest) {
|
|
uint32_t status;
|
|
mImageRequest->GetImageStatus(&status);
|
|
if (status & imgIRequest::STATUS_LOAD_COMPLETE &&
|
|
!(status & imgIRequest::STATUS_ERROR)) {
|
|
nsCOMPtr<imgIContainer> imageCon;
|
|
mImageRequest->GetImage(getter_AddRefs(imageCon));
|
|
if (imageCon) {
|
|
nsRect dest(padding.left, padding.top,
|
|
mRect.width - (padding.left + padding.right),
|
|
mRect.height - (padding.top + padding.bottom));
|
|
BulletRenderer br(imageCon, dest + aPt);
|
|
return Some(br);
|
|
}
|
|
}
|
|
}
|
|
|
|
nscolor color = nsLayoutUtils::GetColor(this, &nsStyleColor::mColor);
|
|
|
|
DrawTarget* drawTarget = aRenderingContext.GetDrawTarget();
|
|
int32_t appUnitsPerDevPixel = PresContext()->AppUnitsPerDevPixel();
|
|
|
|
switch (listStyleType->GetStyle()) {
|
|
case NS_STYLE_LIST_STYLE_NONE:
|
|
return Nothing();
|
|
|
|
case NS_STYLE_LIST_STYLE_DISC:
|
|
case NS_STYLE_LIST_STYLE_CIRCLE:
|
|
{
|
|
nsRect rect(padding.left + aPt.x,
|
|
padding.top + aPt.y,
|
|
mRect.width - (padding.left + padding.right),
|
|
mRect.height - (padding.top + padding.bottom));
|
|
auto devPxRect = LayoutDeviceRect::FromAppUnits(rect, appUnitsPerDevPixel);
|
|
return Some(BulletRenderer(devPxRect, color, listStyleType->GetStyle()));
|
|
}
|
|
|
|
case NS_STYLE_LIST_STYLE_SQUARE:
|
|
{
|
|
nsRect rect(aPt, mRect.Size());
|
|
rect.Deflate(padding);
|
|
|
|
// Snap the height and the width of the rectangle to device pixels,
|
|
// and then center the result within the original rectangle, so that
|
|
// all square bullets at the same font size have the same visual
|
|
// size (bug 376690).
|
|
// FIXME: We should really only do this if we're not transformed
|
|
// (like gfxContext::UserToDevicePixelSnapped does).
|
|
nsPresContext *pc = PresContext();
|
|
nsRect snapRect(rect.x, rect.y,
|
|
pc->RoundAppUnitsToNearestDevPixels(rect.width),
|
|
pc->RoundAppUnitsToNearestDevPixels(rect.height));
|
|
snapRect.MoveBy((rect.width - snapRect.width) / 2,
|
|
(rect.height - snapRect.height) / 2);
|
|
auto devPxRect = LayoutDeviceRect::FromAppUnits(snapRect, appUnitsPerDevPixel);
|
|
return Some(BulletRenderer(devPxRect, color, listStyleType->GetStyle()));
|
|
}
|
|
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN:
|
|
{
|
|
nsRect rect(aPt, mRect.Size());
|
|
rect.Deflate(padding);
|
|
|
|
WritingMode wm = GetWritingMode();
|
|
bool isVertical = wm.IsVertical();
|
|
bool isClosed =
|
|
listStyleType->GetStyle() == NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED;
|
|
bool isDown = (!isVertical && !isClosed) || (isVertical && isClosed);
|
|
nscoord diff = NSToCoordRound(0.1f * rect.height);
|
|
if (isDown) {
|
|
rect.y += diff * 2;
|
|
rect.height -= diff * 2;
|
|
} else {
|
|
rect.Deflate(diff, 0);
|
|
}
|
|
nsPresContext *pc = PresContext();
|
|
rect.x = pc->RoundAppUnitsToNearestDevPixels(rect.x);
|
|
rect.y = pc->RoundAppUnitsToNearestDevPixels(rect.y);
|
|
|
|
RefPtr<PathBuilder> builder = drawTarget->CreatePathBuilder();
|
|
if (isDown) {
|
|
// to bottom
|
|
builder->MoveTo(NSPointToPoint(rect.TopLeft(), appUnitsPerDevPixel));
|
|
builder->LineTo(NSPointToPoint(rect.TopRight(), appUnitsPerDevPixel));
|
|
builder->LineTo(NSPointToPoint((rect.BottomLeft() + rect.BottomRight()) / 2,
|
|
appUnitsPerDevPixel));
|
|
} else {
|
|
bool isLR = isVertical ? wm.IsVerticalLR() : wm.IsBidiLTR();
|
|
if (isLR) {
|
|
// to right
|
|
builder->MoveTo(NSPointToPoint(rect.TopLeft(), appUnitsPerDevPixel));
|
|
builder->LineTo(NSPointToPoint((rect.TopRight() + rect.BottomRight()) / 2,
|
|
appUnitsPerDevPixel));
|
|
builder->LineTo(NSPointToPoint(rect.BottomLeft(), appUnitsPerDevPixel));
|
|
} else {
|
|
// to left
|
|
builder->MoveTo(NSPointToPoint(rect.TopRight(), appUnitsPerDevPixel));
|
|
builder->LineTo(NSPointToPoint(rect.BottomRight(), appUnitsPerDevPixel));
|
|
builder->LineTo(NSPointToPoint((rect.TopLeft() + rect.BottomLeft()) / 2,
|
|
appUnitsPerDevPixel));
|
|
}
|
|
}
|
|
|
|
RefPtr<Path> path = builder->Finish();
|
|
BulletRenderer br(path, color, listStyleType->GetStyle());
|
|
return Some(br);
|
|
}
|
|
|
|
default:
|
|
{
|
|
RefPtr<nsFontMetrics> fm =
|
|
nsLayoutUtils::GetFontMetricsForFrame(this, GetFontSizeInflation());
|
|
nsAutoString text;
|
|
GetListItemText(text);
|
|
WritingMode wm = GetWritingMode();
|
|
nscoord ascent = wm.IsLineInverted()
|
|
? fm->MaxDescent() : fm->MaxAscent();
|
|
aPt.MoveBy(padding.left, padding.top);
|
|
if (wm.IsVertical()) {
|
|
if (wm.IsVerticalLR()) {
|
|
aPt.x = NSToCoordRound(nsLayoutUtils::GetSnappedBaselineX(
|
|
this, &aRenderingContext, aPt.x, ascent));
|
|
} else {
|
|
aPt.x = NSToCoordRound(nsLayoutUtils::GetSnappedBaselineX(
|
|
this, &aRenderingContext, aPt.x + mRect.width,
|
|
-ascent));
|
|
}
|
|
} else {
|
|
aPt.y = NSToCoordRound(nsLayoutUtils::GetSnappedBaselineY(
|
|
this, &aRenderingContext, aPt.y, ascent));
|
|
}
|
|
|
|
BulletRenderer br(text, fm, color, aPt, listStyleType->GetStyle());
|
|
return Some(br);
|
|
}
|
|
}
|
|
|
|
MOZ_CRASH("unreachable");
|
|
return Nothing();
|
|
}
|
|
|
|
ImgDrawResult
|
|
nsBulletFrame::PaintBullet(gfxContext& aRenderingContext, nsPoint aPt,
|
|
const nsRect& aDirtyRect, uint32_t aFlags,
|
|
bool aDisableSubpixelAA)
|
|
{
|
|
Maybe<BulletRenderer> br = CreateBulletRenderer(aRenderingContext, aPt);
|
|
|
|
if (!br) {
|
|
return ImgDrawResult::SUCCESS;
|
|
}
|
|
|
|
return br->Paint(aRenderingContext, aPt, aDirtyRect,
|
|
aFlags, aDisableSubpixelAA, this);
|
|
}
|
|
|
|
int32_t
|
|
nsBulletFrame::SetListItemOrdinal(int32_t aNextOrdinal,
|
|
bool* aChanged,
|
|
int32_t aIncrement)
|
|
{
|
|
MOZ_ASSERT(aIncrement == 1 || aIncrement == -1,
|
|
"We shouldn't have weird increments here");
|
|
|
|
// Assume that the ordinal comes from the caller
|
|
int32_t oldOrdinal = mOrdinal;
|
|
mOrdinal = aNextOrdinal;
|
|
|
|
// Try to get value directly from the list-item, if it specifies a
|
|
// value attribute. Note: we do this with our parent's content
|
|
// because our parent is the list-item.
|
|
nsIContent* parentContent = GetParent()->GetContent();
|
|
if (parentContent) {
|
|
nsGenericHTMLElement *hc =
|
|
nsGenericHTMLElement::FromNode(parentContent);
|
|
if (hc) {
|
|
const nsAttrValue* attr = hc->GetParsedAttr(nsGkAtoms::value);
|
|
if (attr && attr->Type() == nsAttrValue::eInteger) {
|
|
// Use ordinal specified by the value attribute
|
|
mOrdinal = attr->GetIntegerValue();
|
|
}
|
|
}
|
|
}
|
|
|
|
*aChanged = oldOrdinal != mOrdinal;
|
|
|
|
return nsCounterManager::IncrementCounter(mOrdinal, aIncrement);
|
|
}
|
|
|
|
void
|
|
nsBulletFrame::GetListItemText(nsAString& aResult)
|
|
{
|
|
CounterStyle* style = StyleList()->mCounterStyle;
|
|
NS_ASSERTION(style->GetStyle() != NS_STYLE_LIST_STYLE_NONE &&
|
|
style->GetStyle() != NS_STYLE_LIST_STYLE_DISC &&
|
|
style->GetStyle() != NS_STYLE_LIST_STYLE_CIRCLE &&
|
|
style->GetStyle() != NS_STYLE_LIST_STYLE_SQUARE &&
|
|
style->GetStyle() != NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED &&
|
|
style->GetStyle() != NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN,
|
|
"we should be using specialized code for these types");
|
|
|
|
bool isRTL;
|
|
nsAutoString counter, prefix, suffix;
|
|
style->GetPrefix(prefix);
|
|
style->GetSuffix(suffix);
|
|
style->GetCounterText(mOrdinal, GetWritingMode(), counter, isRTL);
|
|
|
|
aResult.Truncate();
|
|
aResult.Append(prefix);
|
|
if (GetWritingMode().IsBidiLTR() != isRTL) {
|
|
aResult.Append(counter);
|
|
} else {
|
|
// RLM = 0x200f, LRM = 0x200e
|
|
char16_t mark = isRTL ? 0x200f : 0x200e;
|
|
aResult.Append(mark);
|
|
aResult.Append(counter);
|
|
aResult.Append(mark);
|
|
}
|
|
aResult.Append(suffix);
|
|
}
|
|
|
|
#define MIN_BULLET_SIZE 1
|
|
|
|
void
|
|
nsBulletFrame::AppendSpacingToPadding(nsFontMetrics* aFontMetrics,
|
|
LogicalMargin* aPadding)
|
|
{
|
|
aPadding->IEnd(GetWritingMode()) += aFontMetrics->EmHeight() / 2;
|
|
}
|
|
|
|
void
|
|
nsBulletFrame::GetDesiredSize(nsPresContext* aCX,
|
|
gfxContext *aRenderingContext,
|
|
ReflowOutput& aMetrics,
|
|
float aFontSizeInflation,
|
|
LogicalMargin* aPadding)
|
|
{
|
|
// Reset our padding. If we need it, we'll set it below.
|
|
WritingMode wm = GetWritingMode();
|
|
aPadding->SizeTo(wm, 0, 0, 0, 0);
|
|
LogicalSize finalSize(wm);
|
|
|
|
const nsStyleList* myList = StyleList();
|
|
nscoord ascent;
|
|
RefPtr<nsFontMetrics> fm =
|
|
nsLayoutUtils::GetFontMetricsForFrame(this, aFontSizeInflation);
|
|
|
|
RemoveStateBits(BULLET_FRAME_IMAGE_LOADING);
|
|
|
|
if (myList->GetListStyleImage() && mImageRequest) {
|
|
uint32_t status;
|
|
mImageRequest->GetImageStatus(&status);
|
|
if (status & imgIRequest::STATUS_SIZE_AVAILABLE &&
|
|
!(status & imgIRequest::STATUS_ERROR)) {
|
|
// auto size the image
|
|
finalSize.ISize(wm) = mIntrinsicSize.ISize(wm);
|
|
aMetrics.SetBlockStartAscent(finalSize.BSize(wm) =
|
|
mIntrinsicSize.BSize(wm));
|
|
aMetrics.SetSize(wm, finalSize);
|
|
|
|
AppendSpacingToPadding(fm, aPadding);
|
|
|
|
AddStateBits(BULLET_FRAME_IMAGE_LOADING);
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
// If we're getting our desired size and don't have an image, reset
|
|
// mIntrinsicSize to (0,0). Otherwise, if we used to have an image, it
|
|
// changed, and the new one is coming in, but we're reflowing before it's
|
|
// fully there, we'll end up with mIntrinsicSize not matching our size, but
|
|
// won't trigger a reflow in OnStartContainer (because mIntrinsicSize will
|
|
// match the image size).
|
|
mIntrinsicSize.SizeTo(wm, 0, 0);
|
|
|
|
nscoord bulletSize;
|
|
|
|
nsAutoString text;
|
|
switch (myList->mCounterStyle->GetStyle()) {
|
|
case NS_STYLE_LIST_STYLE_NONE:
|
|
finalSize.ISize(wm) = finalSize.BSize(wm) = 0;
|
|
aMetrics.SetBlockStartAscent(0);
|
|
break;
|
|
|
|
case NS_STYLE_LIST_STYLE_DISC:
|
|
case NS_STYLE_LIST_STYLE_CIRCLE:
|
|
case NS_STYLE_LIST_STYLE_SQUARE: {
|
|
ascent = fm->MaxAscent();
|
|
bulletSize = std::max(nsPresContext::CSSPixelsToAppUnits(MIN_BULLET_SIZE),
|
|
NSToCoordRound(0.8f * (float(ascent) / 2.0f)));
|
|
aPadding->BEnd(wm) = NSToCoordRound(float(ascent) / 8.0f);
|
|
finalSize.ISize(wm) = finalSize.BSize(wm) = bulletSize;
|
|
aMetrics.SetBlockStartAscent(bulletSize + aPadding->BEnd(wm));
|
|
AppendSpacingToPadding(fm, aPadding);
|
|
break;
|
|
}
|
|
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN:
|
|
ascent = fm->EmAscent();
|
|
bulletSize = std::max(
|
|
nsPresContext::CSSPixelsToAppUnits(MIN_BULLET_SIZE),
|
|
NSToCoordRound(0.75f * ascent));
|
|
aPadding->BEnd(wm) = NSToCoordRound(0.125f * ascent);
|
|
finalSize.ISize(wm) = finalSize.BSize(wm) = bulletSize;
|
|
if (!wm.IsVertical()) {
|
|
aMetrics.SetBlockStartAscent(bulletSize + aPadding->BEnd(wm));
|
|
}
|
|
AppendSpacingToPadding(fm, aPadding);
|
|
break;
|
|
|
|
default:
|
|
GetListItemText(text);
|
|
finalSize.BSize(wm) = fm->MaxHeight();
|
|
finalSize.ISize(wm) =
|
|
nsLayoutUtils::AppUnitWidthOfStringBidi(text, this, *fm, *aRenderingContext);
|
|
aMetrics.SetBlockStartAscent(wm.IsLineInverted()
|
|
? fm->MaxDescent() : fm->MaxAscent());
|
|
break;
|
|
}
|
|
aMetrics.SetSize(wm, finalSize);
|
|
}
|
|
|
|
void
|
|
nsBulletFrame::Reflow(nsPresContext* aPresContext,
|
|
ReflowOutput& aMetrics,
|
|
const ReflowInput& aReflowInput,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
MarkInReflow();
|
|
DO_GLOBAL_REFLOW_COUNT("nsBulletFrame");
|
|
DISPLAY_REFLOW(aPresContext, this, aReflowInput, aMetrics, aStatus);
|
|
MOZ_ASSERT(aStatus.IsEmpty(), "The reflow status should be empty!");
|
|
|
|
float inflation = nsLayoutUtils::FontSizeInflationFor(this);
|
|
SetFontSizeInflation(inflation);
|
|
|
|
// Get the base size
|
|
GetDesiredSize(aPresContext, aReflowInput.mRenderingContext, aMetrics, inflation,
|
|
&mPadding);
|
|
|
|
// Add in the border and padding; split the top/bottom between the
|
|
// ascent and descent to make things look nice
|
|
WritingMode wm = aReflowInput.GetWritingMode();
|
|
const LogicalMargin& bp = aReflowInput.ComputedLogicalBorderPadding();
|
|
mPadding.BStart(wm) += NSToCoordRound(bp.BStart(wm) * inflation);
|
|
mPadding.IEnd(wm) += NSToCoordRound(bp.IEnd(wm) * inflation);
|
|
mPadding.BEnd(wm) += NSToCoordRound(bp.BEnd(wm) * inflation);
|
|
mPadding.IStart(wm) += NSToCoordRound(bp.IStart(wm) * inflation);
|
|
|
|
WritingMode lineWM = aMetrics.GetWritingMode();
|
|
LogicalMargin linePadding = mPadding.ConvertTo(lineWM, wm);
|
|
aMetrics.ISize(lineWM) += linePadding.IStartEnd(lineWM);
|
|
aMetrics.BSize(lineWM) += linePadding.BStartEnd(lineWM);
|
|
aMetrics.SetBlockStartAscent(aMetrics.BlockStartAscent() +
|
|
linePadding.BStart(lineWM));
|
|
|
|
// XXX this is a bit of a hack, we're assuming that no glyphs used for bullets
|
|
// overflow their font-boxes. It'll do for now; to fix it for real, we really
|
|
// should rewrite all the text-handling code here to use gfxTextRun (bug
|
|
// 397294).
|
|
aMetrics.SetOverflowAreasToDesiredBounds();
|
|
|
|
NS_FRAME_SET_TRUNCATION(aStatus, aReflowInput, aMetrics);
|
|
}
|
|
|
|
/* virtual */ nscoord
|
|
nsBulletFrame::GetMinISize(gfxContext *aRenderingContext)
|
|
{
|
|
WritingMode wm = GetWritingMode();
|
|
ReflowOutput reflowOutput(wm);
|
|
DISPLAY_MIN_WIDTH(this, reflowOutput.ISize(wm));
|
|
LogicalMargin padding(wm);
|
|
GetDesiredSize(PresContext(), aRenderingContext, reflowOutput, 1.0f, &padding);
|
|
reflowOutput.ISize(wm) += padding.IStartEnd(wm);
|
|
return reflowOutput.ISize(wm);
|
|
}
|
|
|
|
/* virtual */ nscoord
|
|
nsBulletFrame::GetPrefISize(gfxContext *aRenderingContext)
|
|
{
|
|
WritingMode wm = GetWritingMode();
|
|
ReflowOutput metrics(wm);
|
|
DISPLAY_PREF_WIDTH(this, metrics.ISize(wm));
|
|
LogicalMargin padding(wm);
|
|
GetDesiredSize(PresContext(), aRenderingContext, metrics, 1.0f, &padding);
|
|
metrics.ISize(wm) += padding.IStartEnd(wm);
|
|
return metrics.ISize(wm);
|
|
}
|
|
|
|
// If a bullet has zero size and is "ignorable" from its styling, we behave
|
|
// as if it doesn't exist, from a line-breaking/isize-computation perspective.
|
|
// Otherwise, we use the default implementation, same as nsFrame.
|
|
static inline bool
|
|
IsIgnoreable(const nsIFrame* aFrame, nscoord aISize)
|
|
{
|
|
if (aISize != nscoord(0)) {
|
|
return false;
|
|
}
|
|
auto listStyle = aFrame->StyleList();
|
|
return listStyle->mCounterStyle->IsNone() &&
|
|
!listStyle->GetListStyleImage();
|
|
}
|
|
|
|
/* virtual */ void
|
|
nsBulletFrame::AddInlineMinISize(gfxContext* aRenderingContext,
|
|
nsIFrame::InlineMinISizeData* aData)
|
|
{
|
|
nscoord isize = nsLayoutUtils::IntrinsicForContainer(aRenderingContext,
|
|
this, nsLayoutUtils::MIN_ISIZE);
|
|
if (MOZ_LIKELY(!::IsIgnoreable(this, isize))) {
|
|
aData->DefaultAddInlineMinISize(this, isize);
|
|
}
|
|
}
|
|
|
|
/* virtual */ void
|
|
nsBulletFrame::AddInlinePrefISize(gfxContext* aRenderingContext,
|
|
nsIFrame::InlinePrefISizeData* aData)
|
|
{
|
|
nscoord isize = nsLayoutUtils::IntrinsicForContainer(aRenderingContext,
|
|
this, nsLayoutUtils::PREF_ISIZE);
|
|
if (MOZ_LIKELY(!::IsIgnoreable(this, isize))) {
|
|
aData->DefaultAddInlinePrefISize(isize);
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsBulletFrame::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::FRAME_UPDATE) {
|
|
// The image has changed.
|
|
// Invalidate the entire content area. Maybe it's not optimal but it's simple and
|
|
// always correct, and I'll be a stunned mullet if it ever matters for performance
|
|
InvalidateFrame();
|
|
}
|
|
|
|
if (aType == imgINotificationObserver::IS_ANIMATED) {
|
|
// Register the image request with the refresh driver now that we know it's
|
|
// animated.
|
|
if (aRequest == mImageRequest) {
|
|
RegisterImageRequest(/* aKnownToBeAnimated = */ true);
|
|
}
|
|
}
|
|
|
|
if (aType == imgINotificationObserver::LOAD_COMPLETE) {
|
|
// Unconditionally start decoding for now.
|
|
// XXX(seth): We eventually want to decide whether to do this based on
|
|
// visibility. We should get that for free from bug 1091236.
|
|
nsCOMPtr<imgIContainer> container;
|
|
aRequest->GetImage(getter_AddRefs(container));
|
|
if (container) {
|
|
// Retrieve the intrinsic size of the image.
|
|
int32_t width = 0;
|
|
int32_t height = 0;
|
|
container->GetWidth(&width);
|
|
container->GetHeight(&height);
|
|
|
|
// Request a decode at that size.
|
|
container->RequestDecodeForSize(IntSize(width, height),
|
|
imgIContainer::DECODE_FLAGS_DEFAULT);
|
|
}
|
|
|
|
InvalidateFrame();
|
|
}
|
|
|
|
if (aType == imgINotificationObserver::DECODE_COMPLETE) {
|
|
if (nsIDocument* parent = GetOurCurrentDoc()) {
|
|
nsCOMPtr<imgIContainer> container;
|
|
aRequest->GetImage(getter_AddRefs(container));
|
|
if (container) {
|
|
container->PropagateUseCounters(parent);
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsIDocument*
|
|
nsBulletFrame::GetOurCurrentDoc() const
|
|
{
|
|
nsIContent* parentContent = GetParent()->GetContent();
|
|
return parentContent ? parentContent->GetComposedDoc()
|
|
: nullptr;
|
|
}
|
|
|
|
nsresult
|
|
nsBulletFrame::OnSizeAvailable(imgIRequest* aRequest, imgIContainer* aImage)
|
|
{
|
|
if (!aImage) return NS_ERROR_INVALID_ARG;
|
|
if (!aRequest) return NS_ERROR_INVALID_ARG;
|
|
|
|
uint32_t status;
|
|
aRequest->GetImageStatus(&status);
|
|
if (status & imgIRequest::STATUS_ERROR) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nscoord w, h;
|
|
aImage->GetWidth(&w);
|
|
aImage->GetHeight(&h);
|
|
|
|
nsPresContext* presContext = PresContext();
|
|
|
|
LogicalSize newsize(GetWritingMode(),
|
|
nsSize(nsPresContext::CSSPixelsToAppUnits(w),
|
|
nsPresContext::CSSPixelsToAppUnits(h)));
|
|
|
|
if (mIntrinsicSize != newsize) {
|
|
mIntrinsicSize = newsize;
|
|
|
|
// Now that the size is available (or an error occurred), trigger
|
|
// a reflow of the bullet frame.
|
|
nsIPresShell *shell = presContext->GetPresShell();
|
|
if (shell) {
|
|
shell->FrameNeedsReflow(this, nsIPresShell::eStyleChange,
|
|
NS_FRAME_IS_DIRTY);
|
|
}
|
|
}
|
|
|
|
// Handle animations
|
|
aImage->SetAnimationMode(presContext->ImageAnimationMode());
|
|
// 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();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsBulletFrame::GetLoadGroup(nsPresContext *aPresContext, nsILoadGroup **aLoadGroup)
|
|
{
|
|
if (!aPresContext)
|
|
return;
|
|
|
|
MOZ_ASSERT(nullptr != aLoadGroup, "null OUT parameter pointer");
|
|
|
|
nsIPresShell *shell = aPresContext->GetPresShell();
|
|
|
|
if (!shell)
|
|
return;
|
|
|
|
nsIDocument *doc = shell->GetDocument();
|
|
if (!doc)
|
|
return;
|
|
|
|
*aLoadGroup = doc->GetDocumentLoadGroup().take();
|
|
}
|
|
|
|
float
|
|
nsBulletFrame::GetFontSizeInflation() const
|
|
{
|
|
if (!HasFontSizeInflation()) {
|
|
return 1.0f;
|
|
}
|
|
return GetProperty(FontSizeInflationProperty());
|
|
}
|
|
|
|
void
|
|
nsBulletFrame::SetFontSizeInflation(float aInflation)
|
|
{
|
|
if (aInflation == 1.0f) {
|
|
if (HasFontSizeInflation()) {
|
|
RemoveStateBits(BULLET_FRAME_HAS_FONT_INFLATION);
|
|
DeleteProperty(FontSizeInflationProperty());
|
|
}
|
|
return;
|
|
}
|
|
|
|
AddStateBits(BULLET_FRAME_HAS_FONT_INFLATION);
|
|
SetProperty(FontSizeInflationProperty(), aInflation);
|
|
}
|
|
|
|
already_AddRefed<imgIContainer>
|
|
nsBulletFrame::GetImage() const
|
|
{
|
|
if (mImageRequest && StyleList()->GetListStyleImage()) {
|
|
nsCOMPtr<imgIContainer> imageCon;
|
|
mImageRequest->GetImage(getter_AddRefs(imageCon));
|
|
return imageCon.forget();
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
nscoord
|
|
nsBulletFrame::GetLogicalBaseline(WritingMode aWritingMode) const
|
|
{
|
|
nscoord ascent = 0, baselinePadding;
|
|
if (GetStateBits() & BULLET_FRAME_IMAGE_LOADING) {
|
|
ascent = BSize(aWritingMode);
|
|
} else {
|
|
RefPtr<nsFontMetrics> fm =
|
|
nsLayoutUtils::GetFontMetricsForFrame(this, GetFontSizeInflation());
|
|
CounterStyle* listStyleType = StyleList()->mCounterStyle;
|
|
switch (listStyleType->GetStyle()) {
|
|
case NS_STYLE_LIST_STYLE_NONE:
|
|
break;
|
|
|
|
case NS_STYLE_LIST_STYLE_DISC:
|
|
case NS_STYLE_LIST_STYLE_CIRCLE:
|
|
case NS_STYLE_LIST_STYLE_SQUARE:
|
|
ascent = fm->MaxAscent();
|
|
baselinePadding = NSToCoordRound(float(ascent) / 8.0f);
|
|
ascent = std::max(nsPresContext::CSSPixelsToAppUnits(MIN_BULLET_SIZE),
|
|
NSToCoordRound(0.8f * (float(ascent) / 2.0f)));
|
|
ascent += baselinePadding;
|
|
break;
|
|
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN:
|
|
ascent = fm->EmAscent();
|
|
baselinePadding = NSToCoordRound(0.125f * ascent);
|
|
ascent = std::max(
|
|
nsPresContext::CSSPixelsToAppUnits(MIN_BULLET_SIZE),
|
|
NSToCoordRound(0.75f * ascent));
|
|
ascent += baselinePadding;
|
|
break;
|
|
|
|
default:
|
|
ascent = fm->MaxAscent();
|
|
break;
|
|
}
|
|
}
|
|
return ascent +
|
|
GetLogicalUsedMargin(aWritingMode).BStart(aWritingMode);
|
|
}
|
|
|
|
void
|
|
nsBulletFrame::GetSpokenText(nsAString& aText)
|
|
{
|
|
CounterStyle* style = StyleList()->mCounterStyle;
|
|
bool isBullet;
|
|
style->GetSpokenCounterText(mOrdinal, GetWritingMode(), aText, isBullet);
|
|
if (isBullet) {
|
|
if (!style->IsNone()) {
|
|
aText.Append(' ');
|
|
}
|
|
} else {
|
|
nsAutoString prefix, suffix;
|
|
style->GetPrefix(prefix);
|
|
style->GetSuffix(suffix);
|
|
aText = prefix + aText + suffix;
|
|
}
|
|
}
|
|
|
|
void
|
|
nsBulletFrame::RegisterImageRequest(bool aKnownToBeAnimated)
|
|
{
|
|
if (mImageRequest) {
|
|
// mRequestRegistered is a bitfield; unpack it temporarily so we can take
|
|
// the address.
|
|
bool isRequestRegistered = mRequestRegistered;
|
|
|
|
if (aKnownToBeAnimated) {
|
|
nsLayoutUtils::RegisterImageRequest(PresContext(), mImageRequest,
|
|
&isRequestRegistered);
|
|
} else {
|
|
nsLayoutUtils::RegisterImageRequestIfAnimated(PresContext(),
|
|
mImageRequest,
|
|
&isRequestRegistered);
|
|
}
|
|
|
|
mRequestRegistered = isRequestRegistered;
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
nsBulletFrame::DeregisterAndCancelImageRequest()
|
|
{
|
|
if (mImageRequest) {
|
|
// mRequestRegistered is a bitfield; unpack it temporarily so we can take
|
|
// the address.
|
|
bool isRequestRegistered = mRequestRegistered;
|
|
|
|
// Deregister our image request from the refresh driver.
|
|
nsLayoutUtils::DeregisterImageRequest(PresContext(),
|
|
mImageRequest,
|
|
&isRequestRegistered);
|
|
|
|
mRequestRegistered = isRequestRegistered;
|
|
|
|
// Cancel the image request and forget about it.
|
|
mImageRequest->CancelAndForgetObserver(NS_ERROR_FAILURE);
|
|
mImageRequest = nullptr;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
NS_IMPL_ISUPPORTS(nsBulletListener, imgINotificationObserver)
|
|
|
|
nsBulletListener::nsBulletListener() :
|
|
mFrame(nullptr)
|
|
{
|
|
}
|
|
|
|
nsBulletListener::~nsBulletListener()
|
|
{
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsBulletListener::Notify(imgIRequest *aRequest, int32_t aType, const nsIntRect* aData)
|
|
{
|
|
if (!mFrame) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
return mFrame->Notify(aRequest, aType, aData);
|
|
}
|