1 files changed, 109 insertions, 0 deletions
diff --git a/widget/cocoa/nsNativeBasicThemeCocoa.cpp b/widget/cocoa/nsNativeBasicThemeCocoa.cpp
new file mode 100644
index 0000000000..c6efa2e7d9
--- /dev/null
+++ b/widget/cocoa/nsNativeBasicThemeCocoa.cpp
@@ -0,0 +1,109 @@
+/* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/. */
+
+#include "nsNativeBasicThemeCocoa.h"
+#include "mozilla/gfx/Helpers.h"
+
+already_AddRefed<nsITheme> do_GetBasicNativeThemeDoNotUseDirectly() {
+  static mozilla::StaticRefPtr<nsITheme> gInstance;
+  if (MOZ_UNLIKELY(!gInstance)) {
+    gInstance = new nsNativeBasicThemeCocoa();
+    ClearOnShutdown(&gInstance);
+  }
+  return do_AddRef(gInstance);
+}
+
+NS_IMETHODIMP
+nsNativeBasicThemeCocoa::GetMinimumWidgetSize(
+    nsPresContext* aPresContext, nsIFrame* aFrame, StyleAppearance aAppearance,
+    mozilla::LayoutDeviceIntSize* aResult, bool* aIsOverridable) {
+  DPIRatio dpiRatio = GetDPIRatio(aFrame);
+
+  switch (aAppearance) {
+    case StyleAppearance::ScrollbarthumbHorizontal:
+    case StyleAppearance::ScrollbarthumbVertical:
+    case StyleAppearance::ScrollbarHorizontal:
+    case StyleAppearance::ScrollbarVertical:
+    case StyleAppearance::ScrollbartrackVertical:
+    case StyleAppearance::ScrollbartrackHorizontal:
+    case StyleAppearance::ScrollbarbuttonUp:
+    case StyleAppearance::ScrollbarbuttonDown:
+    case StyleAppearance::ScrollbarbuttonLeft:
+    case StyleAppearance::ScrollbarbuttonRight: {
+      *aIsOverridable = false;
+      *aResult = ScrollbarDrawingMac::GetMinimumWidgetSize(aAppearance, aFrame,
+                                                           dpiRatio.scale);
+      break;
+    }
+
+    default:
+      return nsNativeBasicTheme::GetMinimumWidgetSize(
+          aPresContext, aFrame, aAppearance, aResult, aIsOverridable);
+  }
+
+  return NS_OK;
+}
+
+void nsNativeBasicThemeCocoa::PaintScrollbarThumb(
+    DrawTarget* aDrawTarget, const LayoutDeviceRect& aRect, bool aHorizontal,
+    nsIFrame* aFrame, const ComputedStyle& aStyle,
+    const EventStates& aElementState, const EventStates& aDocumentState,
+    DPIRatio aDpiRatio) {
+  ScrollbarParams params =
+      ScrollbarDrawingMac::ComputeScrollbarParams(aFrame, aStyle, aHorizontal);
+  auto rect = aRect.ToUnknownRect();
+  if (aDpiRatio.scale >= 2.0f) {
+    mozilla::gfx::AutoRestoreTransform autoRestoreTransform(aDrawTarget);
+    aDrawTarget->SetTransform(aDrawTarget->GetTransform().PreScale(2.0f, 2.0f));
+    rect.Scale(1.0f / 2.0f);
+    ScrollbarDrawingMac::DrawScrollbarThumb(*aDrawTarget, rect, params);
+  } else {
+    ScrollbarDrawingMac::DrawScrollbarThumb(*aDrawTarget, rect, params);
+  }
+}
+
+void nsNativeBasicThemeCocoa::PaintScrollbarTrack(
+    DrawTarget* aDrawTarget, const LayoutDeviceRect& aRect, bool aHorizontal,
+    nsIFrame* aFrame, const ComputedStyle& aStyle,
+    const EventStates& aDocumentState, DPIRatio aDpiRatio, bool aIsRoot) {
+  ScrollbarParams params =
+      ScrollbarDrawingMac::ComputeScrollbarParams(aFrame, aStyle, aHorizontal);
+  auto rect = aRect.ToUnknownRect();
+  if (aDpiRatio.scale >= 2.0f) {
+    mozilla::gfx::AutoRestoreTransform autoRestoreTransform(aDrawTarget);
+    aDrawTarget->SetTransform(aDrawTarget->GetTransform().PreScale(2.0f, 2.0f));
+    rect.Scale(1.0f / 2.0f);
+    ScrollbarDrawingMac::DrawScrollbarTrack(*aDrawTarget, rect, params);
+  } else {
+    ScrollbarDrawingMac::DrawScrollbarTrack(*aDrawTarget, rect, params);
+  }
+}
+
+void nsNativeBasicThemeCocoa::PaintScrollbar(DrawTarget* aDrawTarget,
+                                             const LayoutDeviceRect& aRect,
+                                             bool aHorizontal, nsIFrame* aFrame,
+                                             const ComputedStyle& aStyle,
+                                             const EventStates& aDocumentState,
+                                             DPIRatio aDpiRatio, bool aIsRoot) {
+  // Draw nothing; the scrollbar track is drawn in PaintScrollbarTrack.
+}
+
+void nsNativeBasicThemeCocoa::PaintScrollCorner(
+    DrawTarget* aDrawTarget, const LayoutDeviceRect& aRect, nsIFrame* aFrame,
+    const ComputedStyle& aStyle, const EventStates& aDocumentState,
+    DPIRatio aDpiRatio, bool aIsRoot) {
+  ScrollbarParams params =
+      ScrollbarDrawingMac::ComputeScrollbarParams(aFrame, aStyle, false);
+  if (aDpiRatio.scale >= 2.0f) {
+    mozilla::gfx::AutoRestoreTransform autoRestoreTransform(aDrawTarget);
+    aDrawTarget->SetTransform(aDrawTarget->GetTransform().PreScale(2.0f, 2.0f));
+    auto rect = aRect.ToUnknownRect();
+    rect.Scale(1 / 2.0f);
+    ScrollbarDrawingMac::DrawScrollCorner(*aDrawTarget, rect, params);
+  } else {
+    auto rect = aRect.ToUnknownRect();
+    ScrollbarDrawingMac::DrawScrollCorner(*aDrawTarget, rect, params);
+  }
+}