From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- widget/cocoa/ScreenHelperCocoa.mm | 181 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 181 insertions(+) create mode 100644 widget/cocoa/ScreenHelperCocoa.mm (limited to 'widget/cocoa/ScreenHelperCocoa.mm') diff --git a/widget/cocoa/ScreenHelperCocoa.mm b/widget/cocoa/ScreenHelperCocoa.mm new file mode 100644 index 0000000000..57e1313320 --- /dev/null +++ b/widget/cocoa/ScreenHelperCocoa.mm @@ -0,0 +1,181 @@ +/* -*- 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 "ScreenHelperCocoa.h" + +#import + +#include "mozilla/Logging.h" +#include "nsCocoaUtils.h" +#include "nsObjCExceptions.h" + +using namespace mozilla; + +static LazyLogModule sScreenLog("WidgetScreen"); + +@interface ScreenHelperDelegate : NSObject { + @private + mozilla::widget::ScreenHelperCocoa* mHelper; +} + +- (id)initWithScreenHelper:(mozilla::widget::ScreenHelperCocoa*)aScreenHelper; +- (void)didChangeScreenParameters:(NSNotification*)aNotification; +@end + +@implementation ScreenHelperDelegate +- (id)initWithScreenHelper:(mozilla::widget::ScreenHelperCocoa*)aScreenHelper { + if ((self = [self init])) { + mHelper = aScreenHelper; + + [[NSNotificationCenter defaultCenter] + addObserver:self + selector:@selector(didChangeScreenParameters:) + name:NSApplicationDidChangeScreenParametersNotification + object:nil]; + } + + return self; +} + +- (void)dealloc { + [[NSNotificationCenter defaultCenter] removeObserver:self]; + [super dealloc]; +} + +- (void)didChangeScreenParameters:(NSNotification*)aNotification { + MOZ_LOG(sScreenLog, LogLevel::Debug, + ("Received NSApplicationDidChangeScreenParametersNotification")); + + mHelper->RefreshScreens(); +} +@end + +namespace mozilla { +namespace widget { + +ScreenHelperCocoa::ScreenHelperCocoa() { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + MOZ_LOG(sScreenLog, LogLevel::Debug, ("ScreenHelperCocoa created")); + + mDelegate = [[ScreenHelperDelegate alloc] initWithScreenHelper:this]; + + RefreshScreens(); + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +ScreenHelperCocoa::~ScreenHelperCocoa() { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + [mDelegate release]; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +static already_AddRefed MakeScreen(NSScreen* aScreen) { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + DesktopToLayoutDeviceScale contentsScaleFactor( + nsCocoaUtils::GetBackingScaleFactor(aScreen)); + CSSToLayoutDeviceScale defaultCssScaleFactor(contentsScaleFactor.scale); + NSRect frame = [aScreen frame]; + LayoutDeviceIntRect rect = nsCocoaUtils::CocoaRectToGeckoRectDevPix( + frame, contentsScaleFactor.scale); + frame = [aScreen visibleFrame]; + LayoutDeviceIntRect availRect = nsCocoaUtils::CocoaRectToGeckoRectDevPix( + frame, contentsScaleFactor.scale); + + // aScreen may be capable of displaying multiple pixel depths, for example by + // transitioning to an HDR-capable depth when required by a window displayed + // on the screen. We want to note the maximum capabilities of the screen, so + // we use the largest depth it offers. + uint32_t pixelDepth = 0; + const NSWindowDepth* depths = [aScreen supportedWindowDepths]; + for (size_t d = 0; NSWindowDepth depth = depths[d]; d++) { + uint32_t bpp = NSBitsPerPixelFromDepth(depth); + if (bpp > pixelDepth) { + pixelDepth = bpp; + } + } + + // But it confuses content if we return too-high a value here. Cap depth with + // a value that matches what Chrome returns for high bpp screens. + static const uint32_t MAX_REPORTED_PIXEL_DEPTH = 30; + if (pixelDepth > MAX_REPORTED_PIXEL_DEPTH) { + pixelDepth = MAX_REPORTED_PIXEL_DEPTH; + } + + float dpi = 96.0f; + CGDirectDisplayID displayID = + [[[aScreen deviceDescription] objectForKey:@"NSScreenNumber"] intValue]; + CGFloat heightMM = ::CGDisplayScreenSize(displayID).height; + if (heightMM > 0) { + dpi = rect.height / (heightMM / MM_PER_INCH_FLOAT); + } + 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, availRect.x, availRect.y, availRect.width, + availRect.height, pixelDepth, contentsScaleFactor.scale, + defaultCssScaleFactor.scale, dpi)); + + // Getting the refresh rate is a little hard on OS X. We could use + // CVDisplayLinkGetNominalOutputVideoRefreshPeriod, but that's a little + // involved. Ideally we could query it from vsync. For now, we leave it out. + RefPtr screen = new Screen(rect, availRect, pixelDepth, pixelDepth, 0, + contentsScaleFactor, defaultCssScaleFactor, + dpi, Screen::IsPseudoDisplay::No); + return screen.forget(); + + NS_OBJC_END_TRY_BLOCK_RETURN(nullptr); +} + +void ScreenHelperCocoa::RefreshScreens() { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + MOZ_LOG(sScreenLog, LogLevel::Debug, ("Refreshing screens")); + + AutoTArray, 4> screens; + + for (NSScreen* screen in [NSScreen screens]) { + NSDictionary* desc = [screen deviceDescription]; + if ([desc objectForKey:NSDeviceIsScreen] == nil) { + continue; + } + screens.AppendElement(MakeScreen(screen)); + } + + ScreenManager::Refresh(std::move(screens)); + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +NSScreen* ScreenHelperCocoa::CocoaScreenForScreen(nsIScreen* aScreen) { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + for (NSScreen* screen in [NSScreen screens]) { + NSDictionary* desc = [screen deviceDescription]; + if ([desc objectForKey:NSDeviceIsScreen] == nil) { + continue; + } + LayoutDeviceIntRect rect; + double scale; + aScreen->GetRect(&rect.x, &rect.y, &rect.width, &rect.height); + aScreen->GetContentsScaleFactor(&scale); + NSRect frame = [screen frame]; + LayoutDeviceIntRect frameRect = + nsCocoaUtils::CocoaRectToGeckoRectDevPix(frame, scale); + if (rect == frameRect) { + return screen; + } + } + return [NSScreen mainScreen]; + + NS_OBJC_END_TRY_BLOCK_RETURN(nil); +} + +} // namespace widget +} // namespace mozilla -- cgit v1.2.3