summaryrefslogtreecommitdiffstats
path: root/dom/ipc/EffectsInfo.h
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /dom/ipc/EffectsInfo.h
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/ipc/EffectsInfo.h')
-rw-r--r--dom/ipc/EffectsInfo.h67
1 files changed, 67 insertions, 0 deletions
diff --git a/dom/ipc/EffectsInfo.h b/dom/ipc/EffectsInfo.h
new file mode 100644
index 0000000000..3c24b7a1cf
--- /dev/null
+++ b/dom/ipc/EffectsInfo.h
@@ -0,0 +1,67 @@
+/* -*- 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/. */
+
+#ifndef mozilla_dom_EffectsInfo_h
+#define mozilla_dom_EffectsInfo_h
+
+#include "nsRect.h"
+#include "Units.h"
+
+namespace mozilla::dom {
+
+/**
+ * An EffectsInfo contains information for a remote browser about the graphical
+ * effects that are being applied to it by ancestor browsers in different
+ * processes.
+ */
+class EffectsInfo {
+ public:
+ EffectsInfo() = default;
+
+ static EffectsInfo VisibleWithinRect(
+ const Maybe<nsRect>& aVisibleRect, const Scale2D& aRasterScale,
+ const ParentLayerToScreenScale2D& aTransformToAncestorScale) {
+ return EffectsInfo{aVisibleRect, aRasterScale, aTransformToAncestorScale};
+ }
+ static EffectsInfo FullyHidden() { return {}; }
+
+ bool operator==(const EffectsInfo& aOther) const {
+ return mVisibleRect == aOther.mVisibleRect &&
+ mRasterScale == aOther.mRasterScale &&
+ mTransformToAncestorScale == aOther.mTransformToAncestorScale;
+ }
+ bool operator!=(const EffectsInfo& aOther) const {
+ return !(*this == aOther);
+ }
+
+ bool IsVisible() const { return mVisibleRect.isSome(); }
+
+ // The visible rect of this browser relative to the root frame. This might be
+ // empty in cases where we might still be considered visible, like if we're
+ // zero-size but inside the viewport.
+ Maybe<nsRect> mVisibleRect;
+ // The desired scale factors to apply to rasterized content to match
+ // transforms applied in ancestor browsers. This gets propagated into the
+ // scale in StackingContextHelper.
+ Scale2D mRasterScale;
+ // TransformToAncestorScale to be set on FrameMetrics. It includes CSS
+ // transform scales and cumulative presshell resolution.
+ ParentLayerToScreenScale2D mTransformToAncestorScale;
+
+ // If you add new fields here, you must also update operator== and
+ // TabMessageUtils.
+
+ private:
+ EffectsInfo(const Maybe<nsRect>& aVisibleRect, const Scale2D& aRasterScale,
+ const ParentLayerToScreenScale2D& aTransformToAncestorScale)
+ : mVisibleRect(aVisibleRect),
+ mRasterScale(aRasterScale),
+ mTransformToAncestorScale(aTransformToAncestorScale) {}
+};
+
+} // namespace mozilla::dom
+
+#endif // mozilla_dom_EffectsInfo_h