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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /widget/gtk/WindowSurface.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | widget/gtk/WindowSurface.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/widget/gtk/WindowSurface.h b/widget/gtk/WindowSurface.h new file mode 100644 index 0000000000..858ddde59e --- /dev/null +++ b/widget/gtk/WindowSurface.h @@ -0,0 +1,41 @@ +/* -*- Mode: C++; tab-width: 4; 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/. */ + +#ifndef _MOZILLA_WIDGET_WINDOW_SURFACE_H +#define _MOZILLA_WIDGET_WINDOW_SURFACE_H + +#include "mozilla/gfx/2D.h" +#include "Units.h" + +namespace mozilla { +namespace widget { + +// A class for drawing to double-buffered windows. +class WindowSurface { + public: + NS_INLINE_DECL_THREADSAFE_REFCOUNTING(WindowSurface); + + // Locks a region of the window for drawing, returning a draw target + // capturing the bounds of the provided region. + // Implementations must permit invocation from any thread. + virtual already_AddRefed<gfx::DrawTarget> Lock( + const LayoutDeviceIntRegion& aRegion) = 0; + + // Swaps the provided invalid region from the back buffer to the window. + // Implementations must permit invocation from any thread. + virtual void Commit(const LayoutDeviceIntRegion& aInvalidRegion) = 0; + + // Whether the window surface represents a fallback method. + virtual bool IsFallback() const { return false; } + + protected: + virtual ~WindowSurface() = default; +}; + +} // namespace widget +} // namespace mozilla + +#endif // _MOZILLA_WIDGET_WINDOW_SURFACE_H |