ScreenHelperAndroid.cpp

Enable keyboard shortcuts

/* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 2 -*-

 * vim: set sw=2 ts=4 expandtab:

 * 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 "ScreenHelperAndroid.h"

#include "AndroidRect.h"

#include "nsThreadUtils.h"

#include <mozilla/jni/Refs.h>

#include "AndroidVsync.h"

#include "mozilla/Atomics.h"

#include "mozilla/java/GeckoAppShellWrappers.h"

#include "mozilla/java/ScreenManagerHelperNatives.h"

#include "mozilla/widget/ScreenManager.h"

#include "nsXULAppAPI.h"

using namespace mozilla;

using namespace mozilla::widget;

static ScreenHelperAndroid* gHelper = nullptr;

class ScreenHelperAndroid::ScreenHelperSupport final

    : public java::ScreenManagerHelper::Natives<ScreenHelperSupport> {

 public:

  typedef java::ScreenManagerHelper::Natives<ScreenHelperSupport> Base;

  static void RefreshScreenInfo() { gHelper->Refresh(); }

};

static already_AddRefed<Screen> MakePrimaryScreen() {

  MOZ_ASSERT(XRE_IsParentProcess());

  java::sdk::Rect::LocalRef rect = java::GeckoAppShell::GetScreenSize();

  LayoutDeviceIntRect bounds = LayoutDeviceIntRect(

      rect->Left(), rect->Top(), rect->Width(), rect->Height());

  uint32_t depth = java::GeckoAppShell::GetScreenDepth();

  float density = java::GeckoAppShell::GetDensity();

  float dpi = java::GeckoAppShell::GetDpi();

  bool isHDR = false;  // Bug 1884960: report this accurately

  auto orientation =

      hal::ScreenOrientation(java::GeckoAppShell::GetScreenOrientation());

  uint16_t angle = java::GeckoAppShell::GetScreenAngle();

  float refreshRate = java::GeckoAppShell::GetScreenRefreshRate();

  return MakeAndAddRef<Screen>(

      bounds, bounds, depth, depth, refreshRate,

      DesktopToLayoutDeviceScale(density), CSSToLayoutDeviceScale(1.0f), dpi,

      Screen::IsPseudoDisplay::No, Screen::IsHDR(isHDR), orientation, angle);

ScreenHelperAndroid::ScreenHelperAndroid() {

  MOZ_ASSERT(!gHelper);

  gHelper = this;

  ScreenHelperSupport::Base::Init();

  Refresh();

ScreenHelperAndroid::~ScreenHelperAndroid() { gHelper = nullptr; }

void ScreenHelperAndroid::Refresh() {

  AutoTArray<RefPtr<Screen>, 1> screens;

  screens.AppendElement(MakePrimaryScreen());

  ScreenManager::Refresh(std::move(screens));

  if (RefPtr<AndroidVsync> vsync = AndroidVsync::GetInstance()) {

    vsync->OnMaybeUpdateRefreshRate();