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Diffstat (limited to '')
-rw-r--r-- | widget/cocoa/nsUserIdleServiceX.mm | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/widget/cocoa/nsUserIdleServiceX.mm b/widget/cocoa/nsUserIdleServiceX.mm new file mode 100644 index 0000000000..bedaf0773b --- /dev/null +++ b/widget/cocoa/nsUserIdleServiceX.mm @@ -0,0 +1,58 @@ +/* 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 "nsUserIdleServiceX.h" +#include "nsObjCExceptions.h" +#import <Foundation/Foundation.h> + +bool nsUserIdleServiceX::PollIdleTime(uint32_t* aIdleTime) { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + kern_return_t rval; + mach_port_t masterPort; + + rval = IOMasterPort(kIOMasterPortDefault, &masterPort); + if (rval != KERN_SUCCESS) return false; + + io_iterator_t hidItr; + rval = IOServiceGetMatchingServices(masterPort, IOServiceMatching("IOHIDSystem"), &hidItr); + + if (rval != KERN_SUCCESS) return false; + NS_ASSERTION(hidItr, "Our iterator is null, but it ought not to be!"); + + io_registry_entry_t entry = IOIteratorNext(hidItr); + NS_ASSERTION(entry, "Our IO Registry Entry is null, but it shouldn't be!"); + + IOObjectRelease(hidItr); + + NSMutableDictionary* hidProps; + rval = IORegistryEntryCreateCFProperties(entry, (CFMutableDictionaryRef*)&hidProps, + kCFAllocatorDefault, 0); + if (rval != KERN_SUCCESS) return false; + NS_ASSERTION(hidProps, "HIDProperties is null, but no error was returned."); + [hidProps autorelease]; + + id idleObj = [hidProps objectForKey:@"HIDIdleTime"]; + NS_ASSERTION([idleObj isKindOfClass:[NSData class]] || [idleObj isKindOfClass:[NSNumber class]], + "What we got for the idle object is not what we expect!"); + + uint64_t time; + if ([idleObj isKindOfClass:[NSData class]]) + [idleObj getBytes:&time length:sizeof(time)]; + else + time = [idleObj unsignedLongLongValue]; + + IOObjectRelease(entry); + + // convert to ms from ns + time /= 1000000; + if (time > UINT32_MAX) // Overflow will occur + return false; + + *aIdleTime = static_cast<uint32_t>(time); + + return true; + + NS_OBJC_END_TRY_BLOCK_RETURN(false); +} |