diff options
Diffstat (limited to 'src/modules/my/idle_mac.cpp')
| -rw-r--r-- | src/modules/my/idle_mac.cpp | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/src/modules/my/idle_mac.cpp b/src/modules/my/idle_mac.cpp new file mode 100644 index 00000000..92de564d --- /dev/null +++ b/src/modules/my/idle_mac.cpp @@ -0,0 +1,162 @@ +/* + * idle_mac.cpp - detect desktop idle time + * Copyright (C) 2003 Tarkvara Design Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +#ifdef Q_OS_MACX + +#include"idle.h" +#include <Carbon/Carbon.h> + +// Why does Apple have to make this so complicated? +static OSStatus LoadFrameworkBundle(CFStringRef framework, CFBundleRef *bundlePtr) { + OSStatus err; + FSRef frameworksFolderRef; + CFURLRef baseURL; + CFURLRef bundleURL; + + if ( bundlePtr == nil ) return( -1 ); + + *bundlePtr = nil; + + baseURL = nil; + bundleURL = nil; + + err = FSFindFolder(kOnAppropriateDisk, kFrameworksFolderType, true, &frameworksFolderRef); + if (err == noErr) { + baseURL = CFURLCreateFromFSRef(kCFAllocatorSystemDefault, &frameworksFolderRef); + if (baseURL == nil) { + err = coreFoundationUnknownErr; + } + } + if (err == noErr) { + bundleURL = CFURLCreateCopyAppendingPathComponent(kCFAllocatorSystemDefault, baseURL, framework, false); + if (bundleURL == nil) { + err = coreFoundationUnknownErr; + } + } + if (err == noErr) { + *bundlePtr = CFBundleCreate(kCFAllocatorSystemDefault, bundleURL); + if (*bundlePtr == nil) { + err = coreFoundationUnknownErr; + } + } + if (err == noErr) { + if ( ! CFBundleLoadExecutable( *bundlePtr ) ) { + err = coreFoundationUnknownErr; + } + } + + // Clean up. + if (err != noErr && *bundlePtr != nil) { + CFRelease(*bundlePtr); + *bundlePtr = nil; + } + if (bundleURL != nil) { + CFRelease(bundleURL); + } + if (baseURL != nil) { + CFRelease(baseURL); + } + + return err; +} + + +class IdlePlatform::Private { +public: + EventLoopTimerRef mTimerRef; + int mSecondsIdle; + + Private() : mTimerRef(0), mSecondsIdle(0) {} + + static pascal void IdleTimerAction(EventLoopTimerRef, EventLoopIdleTimerMessage inState, void* inUserData); + +}; + + +pascal void IdlePlatform::Private::IdleTimerAction(EventLoopTimerRef, EventLoopIdleTimerMessage inState, void* inUserData) { + switch (inState) { + case kEventLoopIdleTimerStarted: + case kEventLoopIdleTimerStopped: + // Get invoked with this constant at the start of the idle period, + // or whenever user activity cancels the idle. + ((IdlePlatform::Private*)inUserData)->mSecondsIdle = 0; + break; + case kEventLoopIdleTimerIdling: + // Called every time the timer fires (i.e. every second). + ((IdlePlatform::Private*)inUserData)->mSecondsIdle++; + break; + } +} + + +IdlePlatform::IdlePlatform() { + d = new Private(); +} + +IdlePlatform::~IdlePlatform() { + RemoveEventLoopTimer(d->mTimerRef); + delete d; +} + + +// Typedef for the function we're getting back from CFBundleGetFunctionPointerForName. +typedef OSStatus (*InstallEventLoopIdleTimerPtr)(EventLoopRef inEventLoop, + EventTimerInterval inFireDelay, + EventTimerInterval inInterval, + EventLoopIdleTimerUPP inTimerProc, + void * inTimerData, + EventLoopTimerRef * outTimer); + + +bool IdlePlatform::init() { + // May already be init'ed. + if (d->mTimerRef) { + return true; + } + + // According to the docs, InstallEventLoopIdleTimer is new in 10.2. + // According to the headers, it has been around since 10.0. + // One of them is lying. We'll play it safe and weak-link the function. + + // Load the "Carbon.framework" bundle. + CFBundleRef carbonBundle; + if (LoadFrameworkBundle( CFSTR("Carbon.framework"), &carbonBundle ) != noErr) { + return false; + } + + // Load the Mach-O function pointers for the routine we will be using. + InstallEventLoopIdleTimerPtr myInstallEventLoopIdleTimer = (InstallEventLoopIdleTimerPtr)CFBundleGetFunctionPointerForName(carbonBundle, CFSTR("InstallEventLoopIdleTimer")); + if (myInstallEventLoopIdleTimer == 0) { + return false; + } + + EventLoopIdleTimerUPP timerUPP = NewEventLoopIdleTimerUPP(Private::IdleTimerAction); + if ((*myInstallEventLoopIdleTimer)(GetMainEventLoop(), kEventDurationSecond, kEventDurationSecond, timerUPP, 0, &d->mTimerRef)) { + return true; + } + + return false; +} + + +int IdlePlatform::secondsIdle() { + return d->mSecondsIdle; +} +#endif
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