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- // Copyright 2019 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #ifndef UI_PLATFORM_WINDOW_EXTENSIONS_X11_EXTENSION_H_
- #define UI_PLATFORM_WINDOW_EXTENSIONS_X11_EXTENSION_H_
- #include "base/component_export.h"
- #include "ui/gfx/geometry/rect.h"
- namespace ui {
- class PlatformWindow;
- class X11ExtensionDelegate;
- // Linux extensions that linux platforms can use to extend the platform windows
- // APIs. Please refer to README for more details.
- //
- // The extension mustn't be called until PlatformWindow is initialized.
- class COMPONENT_EXPORT(PLATFORM_WINDOW) X11Extension {
- public:
- // Returns whether an XSync extension is available at the current platform.
- virtual bool IsSyncExtensionAvailable() const = 0;
- // Returns a best-effort guess as to whether the WM is tiling (true) or
- // stacking (false).
- virtual bool IsWmTiling() const = 0;
- // Handles CompleteSwapAfterResize event coming from the compositor observer.
- virtual void OnCompleteSwapAfterResize() = 0;
- // Returns the current bounds in terms of the X11 Root Window including the
- // borders provided by the window manager (if any).
- virtual gfx::Rect GetXRootWindowOuterBounds() const = 0;
- // Asks X11 to lower the Xwindow down the stack so that it does not obscure
- // any sibling windows.
- virtual void LowerXWindow() = 0;
- // Forces this window to be unmanaged by the window manager if
- // |override_redirect| is true.
- virtual void SetOverrideRedirect(bool override_redirect) = 0;
- // Returns true if SetOverrideRedirect() would be compatible with the WM.
- virtual bool CanResetOverrideRedirect() const = 0;
- virtual void SetX11ExtensionDelegate(X11ExtensionDelegate* delegate) = 0;
- protected:
- virtual ~X11Extension();
- // Sets the pointer to the extension as a property of the PlatformWindow.
- void SetX11Extension(PlatformWindow* platform_window,
- X11Extension* x11_extensions);
- };
- COMPONENT_EXPORT(PLATFORM_WINDOW)
- X11Extension* GetX11Extension(const PlatformWindow& platform_window);
- } // namespace ui
- #endif // UI_PLATFORM_WINDOW_EXTENSIONS_X11_EXTENSION_H_
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