mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* 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 "WindowOrientationObserver.h"
|
|
|
|
#include "nsGlobalWindow.h"
|
|
#include "mozilla/Hal.h"
|
|
|
|
/**
|
|
* This class is used by nsGlobalWindow to implement window.orientation
|
|
* and window.onorientationchange. This class is defined in its own file
|
|
* because Hal.h pulls in windows.h and can't be included from
|
|
* nsGlobalWindow.cpp
|
|
*/
|
|
WindowOrientationObserver::WindowOrientationObserver(
|
|
nsGlobalWindow* aGlobalWindow)
|
|
: mWindow(aGlobalWindow)
|
|
{
|
|
MOZ_ASSERT(aGlobalWindow && aGlobalWindow->IsInnerWindow());
|
|
hal::RegisterScreenConfigurationObserver(this);
|
|
|
|
hal::ScreenConfiguration config;
|
|
hal::GetCurrentScreenConfiguration(&config);
|
|
mAngle = config.angle();
|
|
}
|
|
|
|
WindowOrientationObserver::~WindowOrientationObserver()
|
|
{
|
|
hal::UnregisterScreenConfigurationObserver(this);
|
|
}
|
|
|
|
void
|
|
WindowOrientationObserver::Notify(
|
|
const mozilla::hal::ScreenConfiguration& aConfiguration)
|
|
{
|
|
uint16_t currentAngle = aConfiguration.angle();
|
|
if (mAngle != currentAngle && mWindow->IsCurrentInnerWindow()) {
|
|
mAngle = currentAngle;
|
|
mWindow->GetOuterWindow()->DispatchCustomEvent(NS_LITERAL_STRING("orientationchange"));
|
|
}
|
|
}
|
|
|
|
/* static */ int16_t
|
|
WindowOrientationObserver::OrientationAngle()
|
|
{
|
|
hal::ScreenConfiguration config;
|
|
hal::GetCurrentScreenConfiguration(&config);
|
|
int16_t angle = static_cast<int16_t>(config.angle());
|
|
// config.angle() returns 0, 90, 180 or 270.
|
|
// window.orientation returns -90, 0, 90 or 180.
|
|
return angle <= 180 ? angle : angle - 360;
|
|
}
|