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/* -*- Mode: C++; tab-width: 4; 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 "ScreenHelperUIKit.h"
#import <UIKit/UIScreen.h>
#include "mozilla/Logging.h"
#include "nsObjCExceptions.h"
using namespace mozilla;
static LazyLogModule sScreenLog("WidgetScreen");
namespace mozilla {
namespace widget {
ScreenHelperUIKit::ScreenHelperUIKit() {
NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
MOZ_LOG(sScreenLog, LogLevel::Debug, ("ScreenHelperUIKit created"));
RefreshScreens();
NS_OBJC_END_TRY_IGNORE_BLOCK;
}
static already_AddRefed<Screen> MakeScreen(UIScreen* aScreen) {
NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
DesktopToLayoutDeviceScale contentsScaleFactor([aScreen scale]);
CSSToLayoutDeviceScale defaultCssScaleFactor(contentsScaleFactor.scale);
CGRect bounds = [[aScreen fixedCoordinateSpace] bounds];
LayoutDeviceIntRect rect;
rect.x = NSToIntRound(bounds.origin.x * contentsScaleFactor.scale);
rect.y = NSToIntRound(bounds.origin.y * contentsScaleFactor.scale);
rect.width = NSToIntRound((bounds.origin.x + bounds.size.width) *
contentsScaleFactor.scale) -
rect.x;
rect.height = NSToIntRound((bounds.size.height - bounds.origin.y) *
contentsScaleFactor.scale) -
rect.y;
// Modern iOS does support HDR, but it's not straightforward to get it given a
// screen.
uint32_t pixelDepth = 24;
float dpi = 96.0f;
MOZ_LOG(sScreenLog, LogLevel::Debug,
("New screen [%d %d %d %d (%d %d %d %d) %d %f %f %f]", rect.x, rect.y,
rect.width, rect.height, rect.x, rect.y, rect.width, rect.height,
pixelDepth, contentsScaleFactor.scale, defaultCssScaleFactor.scale,
dpi));
NSInteger fps = [aScreen maximumFramesPerSecond];
RefPtr<Screen> screen =
new Screen(rect, rect, pixelDepth, pixelDepth, fps, contentsScaleFactor,
defaultCssScaleFactor, dpi, Screen::IsPseudoDisplay::No,
Screen::IsHDR::No);
return screen.forget();
NS_OBJC_END_TRY_BLOCK_RETURN(nullptr);
}
void ScreenHelperUIKit::RefreshScreens() {
NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
MOZ_LOG(sScreenLog, LogLevel::Debug, ("Refreshing screens"));
AutoTArray<RefPtr<Screen>, 1> screens;
screens.AppendElement(MakeScreen([UIScreen mainScreen]));
ScreenManager::Refresh(std::move(screens));
NS_OBJC_END_TRY_IGNORE_BLOCK;
}
} // namespace widget
} // namespace mozilla
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