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/* -*- 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 "mozilla/Atomics.h"
#include "mozilla/java/GeckoAppShellWrappers.h"
#include "mozilla/java/ScreenManagerHelperNatives.h"
#include "mozilla/widget/ScreenManager.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 int32_t AddDisplay(int32_t aDisplayType, int32_t aWidth,
int32_t aHeight, float aDensity) {
static Atomic<uint32_t> nextId;
uint32_t screenId = ++nextId;
NS_DispatchToMainThread(
NS_NewRunnableFunction(
"ScreenHelperAndroid::ScreenHelperSupport::AddDisplay",
[aDisplayType, aWidth, aHeight, aDensity, screenId] {
MOZ_ASSERT(NS_IsMainThread());
gHelper->AddScreen(
screenId, static_cast<DisplayType>(aDisplayType),
LayoutDeviceIntRect(0, 0, aWidth, aHeight), aDensity);
})
.take());
return screenId;
}
static void RemoveDisplay(int32_t aScreenId) {
NS_DispatchToMainThread(
NS_NewRunnableFunction(
"ScreenHelperAndroid::ScreenHelperSupport::RemoveDisplay",
[aScreenId] {
MOZ_ASSERT(NS_IsMainThread());
gHelper->RemoveScreen(aScreenId);
})
.take());
}
};
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();
RefPtr<Screen> screen = new Screen(bounds, bounds, depth, depth,
DesktopToLayoutDeviceScale(density),
CSSToLayoutDeviceScale(1.0f), dpi);
return screen.forget();
}
ScreenHelperAndroid::ScreenHelperAndroid() {
MOZ_ASSERT(!gHelper);
gHelper = this;
ScreenHelperSupport::Base::Init();
Refresh();
}
ScreenHelperAndroid::~ScreenHelperAndroid() { gHelper = nullptr; }
/* static */
ScreenHelperAndroid* ScreenHelperAndroid::GetSingleton() { return gHelper; }
void ScreenHelperAndroid::Refresh() {
mScreens.Remove(0);
AutoTArray<RefPtr<Screen>, 1> screenList;
RefPtr<Screen> screen = MakePrimaryScreen();
if (screen) {
mScreens.Put(0, screen);
}
for (auto iter = mScreens.ConstIter(); !iter.Done(); iter.Next()) {
screenList.AppendElement(iter.Data());
}
ScreenManager& manager = ScreenManager::GetSingleton();
manager.Refresh(std::move(screenList));
}
void ScreenHelperAndroid::AddScreen(uint32_t aScreenId,
DisplayType aDisplayType,
LayoutDeviceIntRect aRect, float aDensity) {
MOZ_ASSERT(aScreenId > 0);
MOZ_ASSERT(!mScreens.Get(aScreenId, nullptr));
RefPtr<Screen> screen =
new Screen(aRect, aRect, 24, 24, DesktopToLayoutDeviceScale(aDensity),
CSSToLayoutDeviceScale(1.0f), 160.0f);
mScreens.Put(aScreenId, screen);
Refresh();
}
void ScreenHelperAndroid::RemoveScreen(uint32_t aScreenId) {
mScreens.Remove(aScreenId);
Refresh();
}
already_AddRefed<Screen> ScreenHelperAndroid::ScreenForId(uint32_t aScreenId) {
RefPtr<Screen> screen = mScreens.Get(aScreenId);
return screen.forget();
}
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