added idle sources

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@923 b45a01b8-16f6-495d-af2f-9b41ad6348cc

retroshare-gui/src/idle/idle.cpp

@@ -0,0 +1,130 @@
+/*
+ * idle.cpp - detect desktop idle time
+ * Copyright (C) 2003  Justin Karneges
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include "idle.h"
+
+#include <QCursor>
+#include <QDateTime>
+#include <QTimer>
+
+static IdlePlatform *platform = 0;
+static int platform_ref = 0;
+
+Idle::Idle()
+{
+	d = new Private;
+	d->active = false;
+	d->idleTime = 0;
+
+	// try to use platform idle
+	if(!platform) {
+		IdlePlatform *p = new IdlePlatform;
+		if(p->init())
+			platform = p;
+		else
+			delete p;
+	}
+	if(platform)
+		++platform_ref;
+
+	connect(&d->checkTimer, SIGNAL(timeout()), SLOT(doCheck()));
+}
+
+Idle::~Idle()
+{
+	if(platform) {
+		--platform_ref;
+		if(platform_ref == 0) {
+			delete platform;
+			platform = 0;
+		}
+	}
+	delete d;
+}
+
+bool Idle::isActive() const
+{
+	return d->active;
+}
+
+bool Idle::usingPlatform() const
+{
+	return (platform ? true: false);
+}
+
+void Idle::start()
+{
+	d->startTime = QDateTime::currentDateTime();
+
+	if(!platform) {
+		// generic idle
+		d->lastMousePos = QCursor::pos();
+		d->idleSince = QDateTime::currentDateTime();
+	}
+
+	// poll every second (use a lower value if you need more accuracy)
+	d->checkTimer.start(1000);
+}
+
+void Idle::stop()
+{
+	d->checkTimer.stop();
+}
+
+int Idle::secondsIdle()
+{
+	int i;
+	if (platform)
+		i = platform->secondsIdle();
+	else {
+		QPoint curMousePos = QCursor::pos();
+		QDateTime curDateTime = QDateTime::currentDateTime();
+		if(d->lastMousePos != curMousePos) {
+			d->lastMousePos = curMousePos;
+			d->idleSince = curDateTime;
+		}
+		i = d->idleSince.secsTo(curDateTime);
+	}
+
+	// set 'beginIdle' to the beginning of the idle time (by backtracking 'i' seconds from now)
+	QDateTime beginIdle = QDateTime::currentDateTime().addSecs(-i);
+
+	// set 't' to hold the number of seconds between 'beginIdle' and 'startTime'
+	int t = beginIdle.secsTo(d->startTime);
+
+	// beginIdle later than (or equal to) startTime?
+	if(t <= 0) {
+		// scoot ourselves up to the new idle start
+		d->startTime = beginIdle;
+	}
+	// beginIdle earlier than startTime?
+	else if(t > 0) {
+		// do nothing
+	}
+	
+	// how long have we been idle?
+	int idleTime = d->startTime.secsTo(QDateTime::currentDateTime());
+	return idleTime;
+}
+
+void Idle::doCheck()
+{
+	secondsIdle(secondsIdle());
+}

retroshare-gui/src/idle/idle.h

@@ -0,0 +1,83 @@
+/*
+ * idle.h - detect desktop idle time
+ * Copyright (C) 2003  Justin Karneges
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#ifndef IDLE_H
+#define IDLE_H
+
+#include <QObject>
+#include <QCursor>
+#include <QDateTime>
+#include <QTimer>
+
+class IdlePlatform;
+
+class Idle : public QObject
+{
+	Q_OBJECT
+public:
+	Idle();
+	~Idle();
+
+	bool isActive() const;
+	bool usingPlatform() const;
+	void start();
+	void stop();
+	int secondsIdle();
+
+signals:
+	void secondsIdle(int);
+
+private slots:
+	void doCheck();
+
+private:
+	class Private;
+	Private *d;
+};
+
+class IdlePlatform
+{
+public:
+	IdlePlatform();
+	~IdlePlatform();
+
+	bool init();
+	int secondsIdle();
+
+private:
+	class Private;
+	Private *d;
+};
+
+class Idle::Private
+{
+public:
+	Private() {}
+
+	QPoint lastMousePos;
+	QDateTime idleSince;
+
+	bool active;
+	int idleTime;
+	QDateTime startTime;
+	QTimer checkTimer;
+};
+
+#endif

retroshare-gui/src/idle/idle_mac.cpp

@@ -0,0 +1,160 @@
+/*
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#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;
+}

retroshare-gui/src/idle/idle_win.cpp

@@ -0,0 +1,102 @@
+/*
+ * idle_win.cpp - detect desktop idle time
+ * Copyright (C) 2003  Justin Karneges
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+#include "idle.h"
+
+#include <QLibrary>
+#include <windows.h>
+
+#ifndef tagLASTINPUTINFO
+typedef struct __tagLASTINPUTINFO {
+	UINT cbSize;
+	DWORD dwTime;
+ } __LASTINPUTINFO, *__PLASTINPUTINFO;
+#endif
+
+class IdlePlatform::Private
+{
+public:
+	Private()
+	{
+		GetLastInputInfo = NULL;
+		lib = 0;
+	}
+
+	BOOL (__stdcall * GetLastInputInfo)(__PLASTINPUTINFO);
+	DWORD (__stdcall * IdleUIGetLastInputTime)(void);
+	QLibrary *lib;
+};
+
+IdlePlatform::IdlePlatform()
+{
+	d = new Private;
+}
+
+IdlePlatform::~IdlePlatform()
+{
+	delete d->lib;
+	delete d;
+}
+
+bool IdlePlatform::init()
+{
+	if(d->lib)
+		return true;
+	void *p;
+
+	// try to find the built-in Windows 2000 function
+	d->lib = new QLibrary("user32");
+	if(d->lib->load() && (p = d->lib->resolve("GetLastInputInfo"))) {
+		d->GetLastInputInfo = (BOOL (__stdcall *)(__PLASTINPUTINFO))p;
+		return true;
+	} else {
+		delete d->lib;
+		d->lib = 0;
+	}
+
+	// fall back on idleui
+	d->lib = new QLibrary("idleui");
+	if(d->lib->load() && (p = d->lib->resolve("IdleUIGetLastInputTime"))) {
+		d->IdleUIGetLastInputTime = (DWORD (__stdcall *)(void))p;
+		return true;
+	} else {
+		delete d->lib;
+		d->lib = 0;
+	}
+
+	return false;
+}
+
+int IdlePlatform::secondsIdle()
+{
+	int i;
+	if(d->GetLastInputInfo) {
+		__LASTINPUTINFO li;
+		li.cbSize = sizeof(__LASTINPUTINFO);
+		bool ok = d->GetLastInputInfo(&li);
+		if(!ok)
+			return 0;
+		i = li.dwTime;
+	} else if (d->IdleUIGetLastInputTime) {
+		i = d->IdleUIGetLastInputTime();
+	} else
+		return 0;
+
+	return (GetTickCount() - i) / 1000;
+}

retroshare-gui/src/idle/idle_x11.cpp

@@ -0,0 +1,98 @@
+/*
+ * idle_x11.cpp - detect desktop idle time
+ * Copyright (C) 2003  Justin Karneges
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include "idle.h"
+
+#ifndef HAVE_XSS
+
+IdlePlatform::IdlePlatform() {}
+IdlePlatform::~IdlePlatform() {}
+bool IdlePlatform::init() { return false; }
+int IdlePlatform::secondsIdle() { return 0; }
+
+#else
+
+#include <qapplication.h>
+#include <QDesktopWidget>
+#include <QX11Info>
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/extensions/scrnsaver.h>
+
+static XErrorHandler old_handler = 0;
+extern "C" int xerrhandler(Display* dpy, XErrorEvent* err)
+{
+	if(err->error_code == BadDrawable)
+		return 0;
+
+	return (*old_handler)(dpy, err);
+}
+
+class IdlePlatform::Private
+{
+public:
+	Private() {}
+
+	XScreenSaverInfo *ss_info;
+};
+
+IdlePlatform::IdlePlatform()
+{
+	d = new Private;
+	d->ss_info = 0;
+}
+
+IdlePlatform::~IdlePlatform()
+{
+	if(d->ss_info)
+		XFree(d->ss_info);
+	if(old_handler) {
+		XSetErrorHandler(old_handler);
+		old_handler = 0;
+	}
+	delete d;
+}
+
+bool IdlePlatform::init()
+{
+	if(d->ss_info)
+		return true;
+
+	old_handler = XSetErrorHandler(xerrhandler);
+
+	int event_base, error_base;
+	if(XScreenSaverQueryExtension(QApplication::desktop()->screen()->x11Display(), &event_base, &error_base)) {
+		d->ss_info = XScreenSaverAllocInfo();
+		return true;
+	}
+	return false;
+}
+
+int IdlePlatform::secondsIdle()
+{
+	if(!d->ss_info)
+		return 0;
+	if(!XScreenSaverQueryInfo(QApplication::desktop()->screen()->x11Display(), QX11Info::appRootWindow(), d->ss_info))
+		return 0;
+	return d->ss_info->idle / 1000;
+}
+
+#endif