135 lines
2.8 KiB
C++
135 lines
2.8 KiB
C++
/*
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* synergy -- mouse and keyboard sharing utility
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* Copyright (C) 2012 Bolton Software Ltd.
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* Copyright (C) 2004 Chris Schoeneman
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*
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* This package is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* found in the file COPYING that should have accompanied this file.
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*
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* This package is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "COSXEventQueueBuffer.h"
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#include "CEvent.h"
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#include "IEventQueue.h"
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//
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// CEventQueueTimer
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//
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class CEventQueueTimer { };
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//
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// COSXEventQueueBuffer
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//
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COSXEventQueueBuffer::COSXEventQueueBuffer(IEventQueue* events) :
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m_eventQueue(events), m_event(NULL)
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{
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// do nothing
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}
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COSXEventQueueBuffer::~COSXEventQueueBuffer()
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{
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// release the last event
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if (m_event != NULL) {
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ReleaseEvent(m_event);
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}
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}
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void
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COSXEventQueueBuffer::waitForEvent(double timeout)
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{
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EventRef event;
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ReceiveNextEvent(0, NULL, timeout, false, &event);
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}
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IEventQueueBuffer::Type
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COSXEventQueueBuffer::getEvent(CEvent& event, UInt32& dataID)
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{
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// release the previous event
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if (m_event != NULL) {
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ReleaseEvent(m_event);
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m_event = NULL;
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}
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// get the next event
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OSStatus error = ReceiveNextEvent(0, NULL, 0.0, true, &m_event);
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// handle the event
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if (error == eventLoopQuitErr) {
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event = CEvent(CEvent::kQuit);
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return kSystem;
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}
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else if (error != noErr) {
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return kNone;
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}
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else {
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UInt32 eventClass = GetEventClass(m_event);
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switch (eventClass) {
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case 'Syne':
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dataID = GetEventKind(m_event);
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return kUser;
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default:
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event = CEvent(CEvent::kSystem,
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m_eventQueue->getSystemTarget(), &m_event);
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return kSystem;
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}
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}
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}
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bool
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COSXEventQueueBuffer::addEvent(UInt32 dataID)
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{
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EventRef event;
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OSStatus error = CreateEvent(
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kCFAllocatorDefault,
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'Syne',
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dataID,
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0,
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kEventAttributeNone,
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&event);
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if (error == noErr) {
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error = PostEventToQueue(m_threadEventQueueRef, event,
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kEventPriorityStandard);
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ReleaseEvent(event);
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}
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return (error == noErr);
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}
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bool
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COSXEventQueueBuffer::isEmpty() const
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{
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EventRef event;
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OSStatus status = ReceiveNextEvent(0, NULL, 0.0, false, &event);
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return (status == eventLoopTimedOutErr);
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}
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CEventQueueTimer*
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COSXEventQueueBuffer::newTimer(double, bool) const
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{
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return new CEventQueueTimer;
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}
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void
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COSXEventQueueBuffer::deleteTimer(CEventQueueTimer* timer) const
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{
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delete timer;
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}
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void
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COSXEventQueueBuffer::cacheCurrentEventQueueRef()
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{
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m_threadEventQueueRef = GetCurrentEventQueue();
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}
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