зеркало из https://github.com/mozilla/gecko-dev.git
40 строки
1.2 KiB
C++
40 строки
1.2 KiB
C++
/* -*- Mode: c++; c-basic-offset: 2; tab-width: 20; indent-tabs-mode: nil; -*-
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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 SurfaceViewWrapperSupport_h__
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#define SurfaceViewWrapperSupport_h__
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#include "mozilla/java/SurfaceViewWrapperNatives.h"
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#include <android/native_window.h>
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#include <android/native_window_jni.h>
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namespace mozilla {
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namespace widget {
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class SurfaceViewWrapperSupport final
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: public java::SurfaceViewWrapper::Natives<SurfaceViewWrapperSupport> {
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public:
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static bool IsSurfaceAbandoned(jni::Object::Param aSurface) {
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ANativeWindow* win =
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ANativeWindow_fromSurface(jni::GetEnvForThread(), aSurface.Get());
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if (!win) {
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return true;
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}
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// If the Surface's underlying BufferQueue has been abandoned, then
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// ANativeWindow_getWidth (or height) will return a negative value
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// to indicate an error.
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int32_t width = ANativeWindow_getWidth(win);
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ANativeWindow_release(win);
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return width < 0;
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}
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};
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} // namespace widget
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} // namespace mozilla
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#endif // SurfaceViewWrapperSupport_h__
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