gecko-dev/widget/windows/CompositorWidgetChild.cpp

84 строки
2.5 KiB
C++

/* -*- Mode: C++; tab-width: 2; 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/. */
#include "CompositorWidgetChild.h"
#include "mozilla/Unused.h"
#include "mozilla/widget/CompositorWidgetVsyncObserver.h"
#include "nsBaseWidget.h"
#include "VsyncDispatcher.h"
#include "gfxPlatform.h"
namespace mozilla {
namespace widget {
CompositorWidgetChild::CompositorWidgetChild(
RefPtr<CompositorVsyncDispatcher> aVsyncDispatcher,
RefPtr<CompositorWidgetVsyncObserver> aVsyncObserver)
: mVsyncDispatcher(aVsyncDispatcher),
mVsyncObserver(aVsyncObserver),
mCompositorWnd(nullptr),
mParentWnd(nullptr) {
MOZ_ASSERT(XRE_IsParentProcess());
MOZ_ASSERT(!gfxPlatform::IsHeadless());
}
CompositorWidgetChild::~CompositorWidgetChild() {}
void CompositorWidgetChild::EnterPresentLock() {
Unused << SendEnterPresentLock();
}
void CompositorWidgetChild::LeavePresentLock() {
Unused << SendLeavePresentLock();
}
void CompositorWidgetChild::OnDestroyWindow() {}
void CompositorWidgetChild::UpdateTransparency(nsTransparencyMode aMode) {
Unused << SendUpdateTransparency(aMode);
}
void CompositorWidgetChild::ClearTransparentWindow() {
Unused << SendClearTransparentWindow();
}
HDC CompositorWidgetChild::GetTransparentDC() const {
// Not supported in out-of-process mode.
return nullptr;
}
void CompositorWidgetChild::SetParentWnd(const HWND aParentWnd) {
mParentWnd = reinterpret_cast<HWND>(aParentWnd);
}
mozilla::ipc::IPCResult CompositorWidgetChild::RecvObserveVsync() {
mVsyncDispatcher->SetCompositorVsyncObserver(mVsyncObserver);
return IPC_OK();
}
mozilla::ipc::IPCResult CompositorWidgetChild::RecvUnobserveVsync() {
mVsyncDispatcher->SetCompositorVsyncObserver(nullptr);
return IPC_OK();
}
mozilla::ipc::IPCResult CompositorWidgetChild::RecvUpdateCompositorWnd(
const WindowsHandle& aCompositorWnd, const WindowsHandle& aParentWnd) {
MOZ_ASSERT(mParentWnd);
HWND parentWnd = reinterpret_cast<HWND>(aParentWnd);
if (mParentWnd == parentWnd) {
mCompositorWnd = reinterpret_cast<HWND>(aCompositorWnd);
::SetParent(mCompositorWnd, mParentWnd);
} else {
gfxCriticalNote << "Parent winow does not match";
MOZ_ASSERT_UNREACHABLE("unexpected to happen");
}
return IPC_OK();
}
} // namespace widget
} // namespace mozilla