forked from mirrors/gecko-dev
a81830ccdb
`nsIWidget` isn't scriptable, so it is unnecessary to return `nsIScreen` for `GetWidgetScreen`. Differential Revision: https://phabricator.services.mozilla.com/D168029
104 lines
2.4 KiB
C++
104 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_widget_gtk_ScreenHelperGTK_h
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#define mozilla_widget_gtk_ScreenHelperGTK_h
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#include "mozilla/widget/ScreenManager.h"
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#include "gdk/gdk.h"
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#ifdef MOZ_X11
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# include <X11/Xlib.h>
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# include "X11UndefineNone.h"
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#endif
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class nsWindow;
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struct wl_registry;
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namespace mozilla {
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namespace widget {
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class ScreenGetter {
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public:
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ScreenGetter() = default;
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virtual ~ScreenGetter(){};
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virtual void Init(){};
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virtual void RefreshScreens(){};
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virtual RefPtr<widget::Screen> GetScreenForWindow(nsWindow* aWindow) {
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return nullptr;
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}
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};
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class ScreenGetterGtk : public ScreenGetter {
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public:
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ScreenGetterGtk();
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~ScreenGetterGtk();
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void Init();
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#ifdef MOZ_X11
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Atom NetWorkareaAtom() { return mNetWorkareaAtom; }
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#endif
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// For internal use from signal callback functions
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void RefreshScreens();
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private:
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GdkWindow* mRootWindow;
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#ifdef MOZ_X11
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Atom mNetWorkareaAtom;
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#endif
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};
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class ScreenGetterWayland;
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struct MonitorConfig;
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#ifdef MOZ_WAYLAND
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class ScreenGetterWayland : public ScreenGetter {
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public:
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ScreenGetterWayland();
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~ScreenGetterWayland();
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void Init();
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MonitorConfig* AddMonitorConfig(int aId);
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bool RemoveMonitorConfig(int aId);
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already_AddRefed<Screen> MakeScreenWayland(gint aMonitor);
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RefPtr<widget::Screen> GetScreenForWindow(nsWindow* aWindow);
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// For internal use from signal callback functions
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void RefreshScreens();
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private:
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int GetMonitorForWindow(nsWindow* aWindow);
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bool MonitorUsesNonIntegerScale(int aMonitor);
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private:
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wl_registry* mRegistry = nullptr;
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// We use UniquePtr<> here to ensure that MonitorConfig is heap-allocated
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// so it's not invalidated by any change to mMonitors that could happen in the
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// meantime.
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AutoTArray<UniquePtr<MonitorConfig>, 4> mMonitors;
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AutoTArray<RefPtr<Screen>, 4> mScreenList;
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};
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#endif
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class ScreenHelperGTK final : public ScreenManager::Helper {
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public:
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ScreenHelperGTK();
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~ScreenHelperGTK();
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static gint GetGTKMonitorScaleFactor(gint aMonitorNum = 0);
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static RefPtr<widget::Screen> GetScreenForWindow(nsWindow* aWindow);
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};
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} // namespace widget
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} // namespace mozilla
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#endif // mozilla_widget_gtk_ScreenHelperGTK_h
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