UserInterfaceIdiom.mm [plain text]
/*
* Copyright (C) 2019 Apple Inc. All rights reserved.
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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#import "config.h"
#import "UserInterfaceIdiom.h"
#if PLATFORM(IOS_FAMILY)
#import "UIKitSPI.h"
#import <WebCore/Device.h>
namespace WebKit {
enum class UserInterfaceIdiomState : uint8_t {
IsPadOrMac,
IsNotPadOrMac,
Unknown,
};
static UserInterfaceIdiomState userInterfaceIdiomIsPadState = UserInterfaceIdiomState::Unknown;
bool currentUserInterfaceIdiomIsPadOrMac()
{
// FIXME: We should get rid of this function and have callers make explicit decisions for all of iPhone/iPad/macOS.
if (userInterfaceIdiomIsPadState == UserInterfaceIdiomState::Unknown)
updateCurrentUserInterfaceIdiom();
return userInterfaceIdiomIsPadState == UserInterfaceIdiomState::IsPadOrMac;
}
void setCurrentUserInterfaceIdiomIsPadOrMac(bool isPadOrMac)
{
userInterfaceIdiomIsPadState = isPadOrMac ? UserInterfaceIdiomState::IsPadOrMac : UserInterfaceIdiomState::IsNotPadOrMac;
}
bool updateCurrentUserInterfaceIdiom()
{
bool wasPadOrMac = userInterfaceIdiomIsPadState == UserInterfaceIdiomState::IsPadOrMac;
bool isPadOrMac = false;
// If we are in a daemon, we cannot use UIDevice. Fall back to checking the hardware itself.
// Since daemons don't ever run in an iPhone-app-on-iPad jail, this will be accurate in the daemon case,
// but is not sufficient in the application case.
if (![UIApplication sharedApplication]) {
auto deviceClass = WebCore::deviceClass();
isPadOrMac = deviceClass == MGDeviceClassiPad || deviceClass == MGDeviceClassMac;
} else {
auto idiom = [[UIDevice currentDevice] userInterfaceIdiom];
isPadOrMac = idiom == UIUserInterfaceIdiomPad || idiom == UIUserInterfaceIdiomMac;
}
if (wasPadOrMac == isPadOrMac)
return false;
setCurrentUserInterfaceIdiomIsPadOrMac(isPadOrMac);
return true;
}
}
#endif