summaryrefslogtreecommitdiffstats
path: root/layout/svg/SVGImageContext.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'layout/svg/SVGImageContext.cpp')
-rw-r--r--layout/svg/SVGImageContext.cpp88
1 files changed, 88 insertions, 0 deletions
diff --git a/layout/svg/SVGImageContext.cpp b/layout/svg/SVGImageContext.cpp
new file mode 100644
index 0000000000..b256d3cf29
--- /dev/null
+++ b/layout/svg/SVGImageContext.cpp
@@ -0,0 +1,88 @@
+/* -*- 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"
+
+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);
+ }
+}
+
+} // namespace mozilla