forked from mirrors/gecko-dev
a848222b53
Per our discussion, this patch splits out the state management bits of WebRenderLayerManager, allowing for them to be maintained per-document. Differential Revision: https://phabricator.services.mozilla.com/D13577 --HG-- extra : moz-landing-system : lando
530 lines
19 KiB
C++
530 lines
19 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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#include "nsButtonFrameRenderer.h"
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#include "nsCSSRendering.h"
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#include "nsPresContext.h"
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#include "nsGkAtoms.h"
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#include "nsCSSPseudoElements.h"
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#include "nsNameSpaceManager.h"
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#include "mozilla/ServoStyleSet.h"
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#include "mozilla/Unused.h"
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#include "nsDisplayList.h"
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#include "nsITheme.h"
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#include "nsFrame.h"
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#include "mozilla/EventStates.h"
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#include "mozilla/dom/Element.h"
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#include "Layers.h"
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#include "gfxPrefs.h"
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#include "gfxUtils.h"
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#include "mozilla/layers/RenderRootStateManager.h"
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#define ACTIVE "active"
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#define HOVER "hover"
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#define FOCUS "focus"
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using namespace mozilla;
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using namespace mozilla::image;
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using namespace mozilla::layers;
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nsButtonFrameRenderer::nsButtonFrameRenderer() : mFrame(nullptr) {
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MOZ_COUNT_CTOR(nsButtonFrameRenderer);
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}
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nsButtonFrameRenderer::~nsButtonFrameRenderer() {
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MOZ_COUNT_DTOR(nsButtonFrameRenderer);
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}
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void nsButtonFrameRenderer::SetFrame(nsFrame* aFrame,
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nsPresContext* aPresContext) {
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mFrame = aFrame;
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ReResolveStyles(aPresContext);
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}
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nsIFrame* nsButtonFrameRenderer::GetFrame() { return mFrame; }
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void nsButtonFrameRenderer::SetDisabled(bool aDisabled, bool aNotify) {
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Element* element = mFrame->GetContent()->AsElement();
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if (aDisabled)
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element->SetAttr(kNameSpaceID_None, nsGkAtoms::disabled, EmptyString(),
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aNotify);
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else
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element->UnsetAttr(kNameSpaceID_None, nsGkAtoms::disabled, aNotify);
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}
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bool nsButtonFrameRenderer::isDisabled() {
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return mFrame->GetContent()->AsElement()->State().HasState(
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NS_EVENT_STATE_DISABLED);
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}
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class nsDisplayButtonBoxShadowOuter : public nsDisplayItem {
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public:
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nsDisplayButtonBoxShadowOuter(nsDisplayListBuilder* aBuilder,
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nsButtonFrameRenderer* aRenderer)
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: nsDisplayItem(aBuilder, aRenderer->GetFrame()) {
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MOZ_COUNT_CTOR(nsDisplayButtonBoxShadowOuter);
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}
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#ifdef NS_BUILD_REFCNT_LOGGING
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virtual ~nsDisplayButtonBoxShadowOuter() {
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MOZ_COUNT_DTOR(nsDisplayButtonBoxShadowOuter);
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}
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#endif
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virtual bool CreateWebRenderCommands(
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mozilla::wr::DisplayListBuilder& aBuilder,
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mozilla::wr::IpcResourceUpdateQueue& aResources,
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const StackingContextHelper& aSc,
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mozilla::layers::RenderRootStateManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder) override;
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bool CanBuildWebRenderDisplayItems();
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virtual void Paint(nsDisplayListBuilder* aBuilder, gfxContext* aCtx) override;
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virtual nsRect GetBounds(nsDisplayListBuilder* aBuilder,
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bool* aSnap) const override;
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NS_DISPLAY_DECL_NAME("ButtonBoxShadowOuter", TYPE_BUTTON_BOX_SHADOW_OUTER)
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};
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nsRect nsDisplayButtonBoxShadowOuter::GetBounds(nsDisplayListBuilder* aBuilder,
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bool* aSnap) const {
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*aSnap = false;
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return mFrame->GetVisualOverflowRectRelativeToSelf() + ToReferenceFrame();
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}
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void nsDisplayButtonBoxShadowOuter::Paint(nsDisplayListBuilder* aBuilder,
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gfxContext* aCtx) {
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nsRect frameRect = nsRect(ToReferenceFrame(), mFrame->GetSize());
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nsCSSRendering::PaintBoxShadowOuter(mFrame->PresContext(), *aCtx, mFrame,
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frameRect, GetPaintRect());
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}
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bool nsDisplayButtonBoxShadowOuter::CanBuildWebRenderDisplayItems() {
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nsCSSShadowArray* shadows = mFrame->StyleEffects()->mBoxShadow;
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if (!shadows) {
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return false;
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}
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bool hasBorderRadius;
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bool nativeTheme =
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nsCSSRendering::HasBoxShadowNativeTheme(mFrame, hasBorderRadius);
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// We don't support native themed things yet like box shadows around
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// input buttons.
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if (nativeTheme) {
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return false;
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}
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return true;
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}
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bool nsDisplayButtonBoxShadowOuter::CreateWebRenderCommands(
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mozilla::wr::DisplayListBuilder& aBuilder,
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mozilla::wr::IpcResourceUpdateQueue& aResources,
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const StackingContextHelper& aSc,
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mozilla::layers::RenderRootStateManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder) {
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if (!CanBuildWebRenderDisplayItems()) {
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return false;
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}
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int32_t appUnitsPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
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nsRect shadowRect = nsRect(ToReferenceFrame(), mFrame->GetSize());
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LayoutDeviceRect deviceBox =
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LayoutDeviceRect::FromAppUnits(shadowRect, appUnitsPerDevPixel);
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wr::LayoutRect deviceBoxRect = wr::ToRoundedLayoutRect(deviceBox);
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LayoutDeviceRect clipRect =
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LayoutDeviceRect::FromAppUnits(GetPaintRect(), appUnitsPerDevPixel);
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wr::LayoutRect deviceClipRect = wr::ToRoundedLayoutRect(clipRect);
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bool hasBorderRadius;
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Unused << nsCSSRendering::HasBoxShadowNativeTheme(mFrame, hasBorderRadius);
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LayoutDeviceSize zeroSize;
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wr::BorderRadius borderRadius =
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wr::ToBorderRadius(zeroSize, zeroSize, zeroSize, zeroSize);
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if (hasBorderRadius) {
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mozilla::gfx::RectCornerRadii borderRadii;
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hasBorderRadius = nsCSSRendering::GetBorderRadii(shadowRect, shadowRect,
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mFrame, borderRadii);
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if (hasBorderRadius) {
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borderRadius = wr::ToBorderRadius(
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LayoutDeviceSize::FromUnknownSize(borderRadii.TopLeft()),
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LayoutDeviceSize::FromUnknownSize(borderRadii.TopRight()),
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LayoutDeviceSize::FromUnknownSize(borderRadii.BottomLeft()),
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LayoutDeviceSize::FromUnknownSize(borderRadii.BottomRight()));
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}
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}
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nsCSSShadowArray* shadows = mFrame->StyleEffects()->mBoxShadow;
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MOZ_ASSERT(shadows);
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for (uint32_t i = shadows->Length(); i > 0; i--) {
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nsCSSShadowItem* shadow = shadows->ShadowAt(i - 1);
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if (shadow->mInset) {
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continue;
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}
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float blurRadius = float(shadow->mRadius) / float(appUnitsPerDevPixel);
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gfx::Color shadowColor =
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nsCSSRendering::GetShadowColor(shadow, mFrame, 1.0);
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LayoutDevicePoint shadowOffset = LayoutDevicePoint::FromAppUnits(
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nsPoint(shadow->mXOffset, shadow->mYOffset), appUnitsPerDevPixel);
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float spreadRadius = float(shadow->mSpread) / float(appUnitsPerDevPixel);
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aBuilder.PushBoxShadow(deviceBoxRect, deviceClipRect, !BackfaceIsHidden(),
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deviceBoxRect, wr::ToLayoutVector2D(shadowOffset),
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wr::ToColorF(shadowColor), blurRadius, spreadRadius,
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borderRadius, wr::BoxShadowClipMode::Outset);
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}
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return true;
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}
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class nsDisplayButtonBorder final : public nsDisplayItem {
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public:
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nsDisplayButtonBorder(nsDisplayListBuilder* aBuilder,
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nsButtonFrameRenderer* aRenderer)
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: nsDisplayItem(aBuilder, aRenderer->GetFrame()), mBFR(aRenderer) {
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MOZ_COUNT_CTOR(nsDisplayButtonBorder);
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}
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#ifdef NS_BUILD_REFCNT_LOGGING
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virtual ~nsDisplayButtonBorder() { MOZ_COUNT_DTOR(nsDisplayButtonBorder); }
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#endif
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virtual bool MustPaintOnContentSide() const override { return true; }
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virtual void HitTest(nsDisplayListBuilder* aBuilder, const nsRect& aRect,
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HitTestState* aState,
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nsTArray<nsIFrame*>* aOutFrames) override {
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aOutFrames->AppendElement(mFrame);
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}
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virtual void Paint(nsDisplayListBuilder* aBuilder, gfxContext* aCtx) override;
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virtual nsRect GetBounds(nsDisplayListBuilder* aBuilder,
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bool* aSnap) const override;
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virtual nsDisplayItemGeometry* AllocateGeometry(
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nsDisplayListBuilder* aBuilder) override;
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virtual void ComputeInvalidationRegion(
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nsDisplayListBuilder* aBuilder, const nsDisplayItemGeometry* aGeometry,
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nsRegion* aInvalidRegion) const override;
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virtual bool CreateWebRenderCommands(
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mozilla::wr::DisplayListBuilder& aBuilder,
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mozilla::wr::IpcResourceUpdateQueue& aResources,
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const StackingContextHelper& aSc,
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mozilla::layers::RenderRootStateManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder) override;
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NS_DISPLAY_DECL_NAME("ButtonBorderBackground", TYPE_BUTTON_BORDER_BACKGROUND)
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private:
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nsButtonFrameRenderer* mBFR;
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};
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nsDisplayItemGeometry* nsDisplayButtonBorder::AllocateGeometry(
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nsDisplayListBuilder* aBuilder) {
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return new nsDisplayItemGenericImageGeometry(this, aBuilder);
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}
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bool nsDisplayButtonBorder::CreateWebRenderCommands(
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mozilla::wr::DisplayListBuilder& aBuilder,
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mozilla::wr::IpcResourceUpdateQueue& aResources,
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const StackingContextHelper& aSc,
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mozilla::layers::RenderRootStateManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder) {
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// This is really a combination of paint box shadow inner +
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// paint border.
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nsRect buttonRect = nsRect(ToReferenceFrame(), mFrame->GetSize());
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bool snap;
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nsRegion visible = GetBounds(aDisplayListBuilder, &snap);
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nsDisplayBoxShadowInner::CreateInsetBoxShadowWebRenderCommands(
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aBuilder, aSc, visible, mFrame, buttonRect);
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bool borderIsEmpty = false;
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Maybe<nsCSSBorderRenderer> br = nsCSSRendering::CreateBorderRenderer(
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mFrame->PresContext(), nullptr, mFrame, nsRect(),
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nsRect(ToReferenceFrame(), mFrame->GetSize()), mFrame->Style(),
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&borderIsEmpty, mFrame->GetSkipSides());
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if (!br) {
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return borderIsEmpty;
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}
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br->CreateWebRenderCommands(this, aBuilder, aResources, aSc);
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return true;
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}
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void nsDisplayButtonBorder::ComputeInvalidationRegion(
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nsDisplayListBuilder* aBuilder, const nsDisplayItemGeometry* aGeometry,
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nsRegion* aInvalidRegion) const {
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auto geometry =
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static_cast<const nsDisplayItemGenericImageGeometry*>(aGeometry);
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if (aBuilder->ShouldSyncDecodeImages() &&
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geometry->ShouldInvalidateToSyncDecodeImages()) {
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bool snap;
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aInvalidRegion->Or(*aInvalidRegion, GetBounds(aBuilder, &snap));
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}
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nsDisplayItem::ComputeInvalidationRegion(aBuilder, aGeometry, aInvalidRegion);
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}
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void nsDisplayButtonBorder::Paint(nsDisplayListBuilder* aBuilder,
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gfxContext* aCtx) {
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NS_ASSERTION(mFrame, "No frame?");
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nsPresContext* pc = mFrame->PresContext();
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nsRect r = nsRect(ToReferenceFrame(), mFrame->GetSize());
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// draw the border and background inside the focus and outline borders
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ImgDrawResult result =
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mBFR->PaintBorder(aBuilder, pc, *aCtx, GetPaintRect(), r);
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nsDisplayItemGenericImageGeometry::UpdateDrawResult(this, result);
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}
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nsRect nsDisplayButtonBorder::GetBounds(nsDisplayListBuilder* aBuilder,
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bool* aSnap) const {
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*aSnap = false;
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return aBuilder->IsForEventDelivery()
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? nsRect(ToReferenceFrame(), mFrame->GetSize())
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: mFrame->GetVisualOverflowRectRelativeToSelf() +
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ToReferenceFrame();
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}
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class nsDisplayButtonForeground final : public nsDisplayItem {
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public:
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nsDisplayButtonForeground(nsDisplayListBuilder* aBuilder,
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nsButtonFrameRenderer* aRenderer)
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: nsDisplayItem(aBuilder, aRenderer->GetFrame()), mBFR(aRenderer) {
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MOZ_COUNT_CTOR(nsDisplayButtonForeground);
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}
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#ifdef NS_BUILD_REFCNT_LOGGING
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virtual ~nsDisplayButtonForeground() {
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MOZ_COUNT_DTOR(nsDisplayButtonForeground);
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}
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#endif
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nsDisplayItemGeometry* AllocateGeometry(
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nsDisplayListBuilder* aBuilder) override;
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void ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
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const nsDisplayItemGeometry* aGeometry,
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nsRegion* aInvalidRegion) const override;
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virtual void Paint(nsDisplayListBuilder* aBuilder, gfxContext* aCtx) override;
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virtual bool CreateWebRenderCommands(
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mozilla::wr::DisplayListBuilder& aBuilder,
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mozilla::wr::IpcResourceUpdateQueue& aResources,
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const StackingContextHelper& aSc,
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mozilla::layers::RenderRootStateManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder) override;
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NS_DISPLAY_DECL_NAME("ButtonForeground", TYPE_BUTTON_FOREGROUND)
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private:
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nsButtonFrameRenderer* mBFR;
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};
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nsDisplayItemGeometry* nsDisplayButtonForeground::AllocateGeometry(
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nsDisplayListBuilder* aBuilder) {
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return new nsDisplayItemGenericImageGeometry(this, aBuilder);
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}
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void nsDisplayButtonForeground::ComputeInvalidationRegion(
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nsDisplayListBuilder* aBuilder, const nsDisplayItemGeometry* aGeometry,
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nsRegion* aInvalidRegion) const {
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auto geometry =
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static_cast<const nsDisplayItemGenericImageGeometry*>(aGeometry);
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if (aBuilder->ShouldSyncDecodeImages() &&
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geometry->ShouldInvalidateToSyncDecodeImages()) {
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bool snap;
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aInvalidRegion->Or(*aInvalidRegion, GetBounds(aBuilder, &snap));
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}
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nsDisplayItem::ComputeInvalidationRegion(aBuilder, aGeometry, aInvalidRegion);
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}
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void nsDisplayButtonForeground::Paint(nsDisplayListBuilder* aBuilder,
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gfxContext* aCtx) {
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nsPresContext* presContext = mFrame->PresContext();
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const nsStyleDisplay* disp = mFrame->StyleDisplay();
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if (!mFrame->IsThemed(disp) ||
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!presContext->GetTheme()->ThemeDrawsFocusForWidget(disp->mAppearance)) {
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nsRect r = nsRect(ToReferenceFrame(), mFrame->GetSize());
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// Draw the -moz-focus-inner border
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ImgDrawResult result = mBFR->PaintInnerFocusBorder(
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aBuilder, presContext, *aCtx, GetPaintRect(), r);
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nsDisplayItemGenericImageGeometry::UpdateDrawResult(this, result);
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}
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}
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bool nsDisplayButtonForeground::CreateWebRenderCommands(
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mozilla::wr::DisplayListBuilder& aBuilder,
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mozilla::wr::IpcResourceUpdateQueue& aResources,
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const StackingContextHelper& aSc,
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mozilla::layers::RenderRootStateManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder) {
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Maybe<nsCSSBorderRenderer> br;
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bool borderIsEmpty = false;
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nsPresContext* presContext = mFrame->PresContext();
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const nsStyleDisplay* disp = mFrame->StyleDisplay();
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if (!mFrame->IsThemed(disp) ||
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!presContext->GetTheme()->ThemeDrawsFocusForWidget(disp->mAppearance)) {
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nsRect r = nsRect(ToReferenceFrame(), mFrame->GetSize());
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br = mBFR->CreateInnerFocusBorderRenderer(aDisplayListBuilder, presContext,
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nullptr, GetPaintRect(), r,
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&borderIsEmpty);
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}
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if (!br) {
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return borderIsEmpty;
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}
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br->CreateWebRenderCommands(this, aBuilder, aResources, aSc);
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return true;
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}
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nsresult nsButtonFrameRenderer::DisplayButton(nsDisplayListBuilder* aBuilder,
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nsDisplayList* aBackground,
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nsDisplayList* aForeground) {
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if (mFrame->StyleEffects()->mBoxShadow) {
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aBackground->AppendToTop(
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MakeDisplayItem<nsDisplayButtonBoxShadowOuter>(aBuilder, this));
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}
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nsRect buttonRect = mFrame->GetRectRelativeToSelf();
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nsDisplayBackgroundImage::AppendBackgroundItemsToTop(aBuilder, mFrame,
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buttonRect, aBackground);
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aBackground->AppendToTop(
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MakeDisplayItem<nsDisplayButtonBorder>(aBuilder, this));
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// Only display focus rings if we actually have them. Since at most one
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// button would normally display a focus ring, most buttons won't have them.
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if (mInnerFocusStyle && mInnerFocusStyle->StyleBorder()->HasBorder()) {
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aForeground->AppendToTop(
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MakeDisplayItem<nsDisplayButtonForeground>(aBuilder, this));
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}
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return NS_OK;
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}
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void nsButtonFrameRenderer::GetButtonInnerFocusRect(const nsRect& aRect,
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nsRect& aResult) {
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aResult = aRect;
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aResult.Deflate(mFrame->GetUsedBorderAndPadding());
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if (mInnerFocusStyle) {
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nsMargin innerFocusPadding(0, 0, 0, 0);
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mInnerFocusStyle->StylePadding()->GetPadding(innerFocusPadding);
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nsMargin framePadding = mFrame->GetUsedPadding();
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innerFocusPadding.top = std::min(innerFocusPadding.top, framePadding.top);
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innerFocusPadding.right =
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std::min(innerFocusPadding.right, framePadding.right);
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innerFocusPadding.bottom =
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std::min(innerFocusPadding.bottom, framePadding.bottom);
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innerFocusPadding.left =
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std::min(innerFocusPadding.left, framePadding.left);
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aResult.Inflate(innerFocusPadding);
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}
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}
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ImgDrawResult nsButtonFrameRenderer::PaintInnerFocusBorder(
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nsDisplayListBuilder* aBuilder, nsPresContext* aPresContext,
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gfxContext& aRenderingContext, const nsRect& aDirtyRect,
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const nsRect& aRect) {
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// we draw the -moz-focus-inner border just inside the button's
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// normal border and padding, to match Windows themes.
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nsRect rect;
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PaintBorderFlags flags = aBuilder->ShouldSyncDecodeImages()
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? PaintBorderFlags::SYNC_DECODE_IMAGES
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: PaintBorderFlags();
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ImgDrawResult result = ImgDrawResult::SUCCESS;
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if (mInnerFocusStyle) {
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GetButtonInnerFocusRect(aRect, rect);
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result &=
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nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, mFrame,
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aDirtyRect, rect, mInnerFocusStyle, flags);
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}
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return result;
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}
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Maybe<nsCSSBorderRenderer>
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nsButtonFrameRenderer::CreateInnerFocusBorderRenderer(
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nsDisplayListBuilder* aBuilder, nsPresContext* aPresContext,
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gfxContext* aRenderingContext, const nsRect& aDirtyRect,
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const nsRect& aRect, bool* aBorderIsEmpty) {
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if (mInnerFocusStyle) {
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nsRect rect;
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GetButtonInnerFocusRect(aRect, rect);
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gfx::DrawTarget* dt =
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aRenderingContext ? aRenderingContext->GetDrawTarget() : nullptr;
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return nsCSSRendering::CreateBorderRenderer(
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aPresContext, dt, mFrame, aDirtyRect, rect, mInnerFocusStyle,
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aBorderIsEmpty);
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}
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return Nothing();
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}
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ImgDrawResult nsButtonFrameRenderer::PaintBorder(nsDisplayListBuilder* aBuilder,
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nsPresContext* aPresContext,
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gfxContext& aRenderingContext,
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const nsRect& aDirtyRect,
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const nsRect& aRect) {
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// get the button rect this is inside the focus and outline rects
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nsRect buttonRect = aRect;
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ComputedStyle* context = mFrame->Style();
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|
|
|
PaintBorderFlags borderFlags = aBuilder->ShouldSyncDecodeImages()
|
|
? PaintBorderFlags::SYNC_DECODE_IMAGES
|
|
: PaintBorderFlags();
|
|
|
|
nsCSSRendering::PaintBoxShadowInner(aPresContext, aRenderingContext, mFrame,
|
|
buttonRect);
|
|
|
|
ImgDrawResult result =
|
|
nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, mFrame,
|
|
aDirtyRect, buttonRect, context, borderFlags);
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Call this when styles change
|
|
*/
|
|
void nsButtonFrameRenderer::ReResolveStyles(nsPresContext* aPresContext) {
|
|
// get all the styles
|
|
ComputedStyle* context = mFrame->Style();
|
|
ServoStyleSet* styleSet = aPresContext->StyleSet();
|
|
|
|
// get styles assigned to -moz-focus-inner (ie dotted border on Windows)
|
|
mInnerFocusStyle = styleSet->ProbePseudoElementStyle(
|
|
*mFrame->GetContent()->AsElement(), CSSPseudoElementType::mozFocusInner,
|
|
context);
|
|
}
|
|
|
|
ComputedStyle* nsButtonFrameRenderer::GetComputedStyle(int32_t aIndex) const {
|
|
switch (aIndex) {
|
|
case NS_BUTTON_RENDERER_FOCUS_INNER_CONTEXT_INDEX:
|
|
return mInnerFocusStyle;
|
|
default:
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
void nsButtonFrameRenderer::SetComputedStyle(int32_t aIndex,
|
|
ComputedStyle* aComputedStyle) {
|
|
switch (aIndex) {
|
|
case NS_BUTTON_RENDERER_FOCUS_INNER_CONTEXT_INDEX:
|
|
mInnerFocusStyle = aComputedStyle;
|
|
break;
|
|
}
|
|
}
|