1 files changed, 63 insertions, 0 deletions
diff --git a/widget/RemoteLookAndFeel.h b/widget/RemoteLookAndFeel.h
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+++ b/widget/RemoteLookAndFeel.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=8 et :
+ */
+/* 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_widget_RemoteLookAndFeel_h__
+#define mozilla_widget_RemoteLookAndFeel_h__
+
+#include "mozilla/widget/nsXPLookAndFeel.h"
+#include "mozilla/widget/LookAndFeelTypes.h"
+
+namespace mozilla::widget {
+
+/**
+ * A LookAndFeel implementation whose native values are provided by the
+ * parent process.
+ */
+class RemoteLookAndFeel final : public nsXPLookAndFeel {
+ public:
+  explicit RemoteLookAndFeel(FullLookAndFeel&& aTables);
+
+  virtual ~RemoteLookAndFeel();
+
+  void NativeInit() override {}
+
+  nsresult NativeGetInt(IntID, int32_t& aResult) override;
+  nsresult NativeGetFloat(FloatID, float& aResult) override;
+  nsresult NativeGetColor(ColorID, ColorScheme, nscolor& aResult) override;
+  bool NativeGetFont(FontID aID, nsString& aFontName,
+                     gfxFontStyle& aFontStyle) override;
+
+  char16_t GetPasswordCharacterImpl() override;
+  bool GetEchoPasswordImpl() override;
+
+  // Sets the LookAndFeel data to be used by this content process' singleton
+  // RemoteLookAndFeel object.
+  void SetDataImpl(FullLookAndFeel&& aTables) override;
+
+  // Extracts the data from the platform's default LookAndFeel implementation.
+  //
+  // This is called in the parent process to obtain the data to send down to
+  // content processes when they are created (and when the OS theme changes).
+  //
+  // Note that the pointer returned from here is only valid until the next time
+  // ClearCachedData is called.
+  static const FullLookAndFeel* ExtractData();
+
+  // Clears any cached extracted data from the platform's default LookAndFeel
+  // implementation.
+  //
+  // This is called in the parent process when the default LookAndFeel is
+  // refreshed, to invalidate sCachedLookAndFeelData.
+  static void ClearCachedData();
+
+ private:
+  LookAndFeelTables mTables;
+};
+
+}  // namespace mozilla::widget
+
+#endif  // mozilla_widget_RemoteLookAndFeel_h__