зеркало из https://github.com/mozilla/gecko-dev.git
110 строки
3.6 KiB
Plaintext
110 строки
3.6 KiB
Plaintext
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Shawn Wilsher <me@shawnwilsher.com>
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* Portions created by the Initial Developer are Copyright (C) 2007
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsIdleServiceX.h"
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#include "nsObjCExceptions.h"
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#include "nsIServiceManager.h"
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#import <Foundation/Foundation.h>
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NS_IMPL_ISUPPORTS2(nsIdleServiceX, nsIIdleService, nsIdleService)
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bool
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nsIdleServiceX::PollIdleTime(PRUint32 *aIdleTime)
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{
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NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
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kern_return_t rval;
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mach_port_t masterPort;
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rval = IOMasterPort(kIOMasterPortDefault, &masterPort);
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if (rval != KERN_SUCCESS)
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return false;
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io_iterator_t hidItr;
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rval = IOServiceGetMatchingServices(masterPort,
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IOServiceMatching("IOHIDSystem"),
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&hidItr);
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if (rval != KERN_SUCCESS)
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return false;
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NS_ASSERTION(hidItr, "Our iterator is null, but it ought not to be!");
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io_registry_entry_t entry = IOIteratorNext(hidItr);
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NS_ASSERTION(entry, "Our IO Registry Entry is null, but it shouldn't be!");
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IOObjectRelease(hidItr);
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NSMutableDictionary *hidProps;
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rval = IORegistryEntryCreateCFProperties(entry,
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(CFMutableDictionaryRef*)&hidProps,
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kCFAllocatorDefault, 0);
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if (rval != KERN_SUCCESS)
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return false;
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NS_ASSERTION(hidProps, "HIDProperties is null, but no error was returned.");
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[hidProps autorelease];
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id idleObj = [hidProps objectForKey:@"HIDIdleTime"];
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NS_ASSERTION([idleObj isKindOfClass: [NSData class]] ||
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[idleObj isKindOfClass: [NSNumber class]],
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"What we got for the idle object is not what we expect!");
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uint64_t time;
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if ([idleObj isKindOfClass: [NSData class]])
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[idleObj getBytes: &time];
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else
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time = [idleObj unsignedLongLongValue];
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IOObjectRelease(entry);
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// convert to ms from ns
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time /= 1000000;
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if (time > PR_UINT32_MAX) // Overflow will occur
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return false;
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*aIdleTime = static_cast<PRUint32>(time);
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return true;
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NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(false);
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}
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bool
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nsIdleServiceX::UsePollMode()
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{
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return true;
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}
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