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comparison: widget/cocoa/nsIdleServiceX.mm
widget/cocoa/nsIdleServiceX.mm
- changeset 0
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| -1:000000000000 | 0:3b345b874c4d |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 #include "nsIdleServiceX.h" | |
| 6 #include "nsObjCExceptions.h" | |
| 7 #include "nsIServiceManager.h" | |
| 8 #import <Foundation/Foundation.h> | |
| 9 | |
| 10 NS_IMPL_ISUPPORTS_INHERITED0(nsIdleServiceX, nsIdleService) | |
| 11 | |
| 12 bool | |
| 13 nsIdleServiceX::PollIdleTime(uint32_t *aIdleTime) | |
| 14 { | |
| 15 NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN; | |
| 16 | |
| 17 kern_return_t rval; | |
| 18 mach_port_t masterPort; | |
| 19 | |
| 20 rval = IOMasterPort(kIOMasterPortDefault, &masterPort); | |
| 21 if (rval != KERN_SUCCESS) | |
| 22 return false; | |
| 23 | |
| 24 io_iterator_t hidItr; | |
| 25 rval = IOServiceGetMatchingServices(masterPort, | |
| 26 IOServiceMatching("IOHIDSystem"), | |
| 27 &hidItr); | |
| 28 | |
| 29 if (rval != KERN_SUCCESS) | |
| 30 return false; | |
| 31 NS_ASSERTION(hidItr, "Our iterator is null, but it ought not to be!"); | |
| 32 | |
| 33 io_registry_entry_t entry = IOIteratorNext(hidItr); | |
| 34 NS_ASSERTION(entry, "Our IO Registry Entry is null, but it shouldn't be!"); | |
| 35 | |
| 36 IOObjectRelease(hidItr); | |
| 37 | |
| 38 NSMutableDictionary *hidProps; | |
| 39 rval = IORegistryEntryCreateCFProperties(entry, | |
| 40 (CFMutableDictionaryRef*)&hidProps, | |
| 41 kCFAllocatorDefault, 0); | |
| 42 if (rval != KERN_SUCCESS) | |
| 43 return false; | |
| 44 NS_ASSERTION(hidProps, "HIDProperties is null, but no error was returned."); | |
| 45 [hidProps autorelease]; | |
| 46 | |
| 47 id idleObj = [hidProps objectForKey:@"HIDIdleTime"]; | |
| 48 NS_ASSERTION([idleObj isKindOfClass: [NSData class]] || | |
| 49 [idleObj isKindOfClass: [NSNumber class]], | |
| 50 "What we got for the idle object is not what we expect!"); | |
| 51 | |
| 52 uint64_t time; | |
| 53 if ([idleObj isKindOfClass: [NSData class]]) | |
| 54 [idleObj getBytes: &time]; | |
| 55 else | |
| 56 time = [idleObj unsignedLongLongValue]; | |
| 57 | |
| 58 IOObjectRelease(entry); | |
| 59 | |
| 60 // convert to ms from ns | |
| 61 time /= 1000000; | |
| 62 if (time > UINT32_MAX) // Overflow will occur | |
| 63 return false; | |
| 64 | |
| 65 *aIdleTime = static_cast<uint32_t>(time); | |
| 66 | |
| 67 return true; | |
| 68 | |
| 69 NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(false); | |
| 70 } | |
| 71 | |
| 72 bool | |
| 73 nsIdleServiceX::UsePollMode() | |
| 74 { | |
| 75 return true; | |
| 76 } | |
| 77 |
