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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// Main header first:
#include "SVGImageContext.h"
// Keep others in (case-insensitive) order:
#include "gfxUtils.h"
#include "mozilla/LookAndFeel.h"
#include "mozilla/StaticPrefs_svg.h"
#include "mozilla/dom/Document.h"
#include "nsIFrame.h"
#include "nsPresContext.h"
#include "nsStyleStruct.h"
#include "nsISVGPaintContext.h"
#include "mozilla/ServoCSSParser.h"
namespace mozilla {
/* static */
void SVGImageContext::MaybeStoreContextPaint(SVGImageContext& aContext,
nsIFrame* aFromFrame,
imgIContainer* aImgContainer) {
return MaybeStoreContextPaint(aContext, *aFromFrame->PresContext(),
*aFromFrame->Style(), aImgContainer);
}
/* static */
void SVGImageContext::MaybeStoreContextPaint(SVGImageContext& aContext,
const nsPresContext& aPresContext,
const ComputedStyle& aStyle,
imgIContainer* aImgContainer) {
if (aImgContainer->GetType() != imgIContainer::TYPE_VECTOR) {
// Avoid this overhead for raster images.
return;
}
if (StaticPrefs::svg_embedder_prefers_color_scheme_content_enabled() ||
aPresContext.Document()->ChromeRulesEnabled()) {
auto scheme = LookAndFeel::ColorSchemeForStyle(
*aPresContext.Document(), aStyle.StyleUI()->mColorScheme.bits,
ColorSchemeMode::Preferred);
aContext.SetColorScheme(Some(scheme));
}
const nsStyleSVG* style = aStyle.StyleSVG();
if (!style->ExposesContextProperties()) {
// Content must have '-moz-context-properties' set to the names of the
// properties it wants to expose to images it links to.
return;
}
bool haveContextPaint = false;
auto contextPaint = MakeRefPtr<SVGEmbeddingContextPaint>();
if ((style->mMozContextProperties.bits & StyleContextPropertyBits::FILL) &&
style->mFill.kind.IsColor()) {
haveContextPaint = true;
contextPaint->SetFill(style->mFill.kind.AsColor().CalcColor(aStyle));
}
if ((style->mMozContextProperties.bits & StyleContextPropertyBits::STROKE) &&
style->mStroke.kind.IsColor()) {
haveContextPaint = true;
contextPaint->SetStroke(style->mStroke.kind.AsColor().CalcColor(aStyle));
}
if (style->mMozContextProperties.bits &
StyleContextPropertyBits::FILL_OPACITY) {
haveContextPaint = true;
contextPaint->SetFillOpacity(style->mFillOpacity.IsOpacity()
? style->mFillOpacity.AsOpacity()
: 1.0f);
}
if (style->mMozContextProperties.bits &
StyleContextPropertyBits::STROKE_OPACITY) {
haveContextPaint = true;
contextPaint->SetStrokeOpacity(style->mStrokeOpacity.IsOpacity()
? style->mStrokeOpacity.AsOpacity()
: 1.0f);
}
if (haveContextPaint) {
aContext.mContextPaint = std::move(contextPaint);
}
}
/* static */
void SVGImageContext::MaybeStoreContextPaint(SVGImageContext& aContext,
nsISVGPaintContext* aPaintContext,
imgIContainer* aImgContainer) {
if (aImgContainer->GetType() != imgIContainer::TYPE_VECTOR ||
!aPaintContext) {
// Avoid this overhead for raster images.
return;
}
bool haveContextPaint = false;
auto contextPaint = MakeRefPtr<SVGEmbeddingContextPaint>();
nsCString value;
float opacity;
if (NS_SUCCEEDED(aPaintContext->GetStrokeColor(value)) && !value.IsEmpty()) {
nscolor color;
if (ServoCSSParser::ComputeColor(nullptr, NS_RGB(0, 0, 0), value, &color)) {
haveContextPaint = true;
contextPaint->SetStroke(color);
}
}
if (NS_SUCCEEDED(aPaintContext->GetFillColor(value)) && !value.IsEmpty()) {
nscolor color;
if (ServoCSSParser::ComputeColor(nullptr, NS_RGB(0, 0, 0), value, &color)) {
haveContextPaint = true;
contextPaint->SetFill(color);
}
}
if (NS_SUCCEEDED(aPaintContext->GetStrokeOpacity(&opacity))) {
haveContextPaint = true;
contextPaint->SetStrokeOpacity(opacity);
}
if (NS_SUCCEEDED(aPaintContext->GetFillOpacity(&opacity))) {
haveContextPaint = true;
contextPaint->SetFillOpacity(opacity);
}
if (haveContextPaint) {
aContext.mContextPaint = std::move(contextPaint);
}
}
} // namespace mozilla
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