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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 aID, int32_t& aResult) override;
nsresult NativeGetFloat(FloatID aID, float& aResult) override;
nsresult NativeGetColor(ColorID aID, 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;
// A cached copy of the data extracted by ExtractData.
//
// Storing this lets us avoid doing most of the work of ExtractData each
// time we create a new content process.
//
// Only used in the parent process.
static StaticAutoPtr<FullLookAndFeel> sCachedLookAndFeelData;
};
} // namespace mozilla::widget
#endif // mozilla_widget_RemoteLookAndFeel_h__
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