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Copy pathsingleapplication.cpp
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130 lines (114 loc) · 3.67 KB
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#include"singleapplication.h"
#include"helpfunc.h"
#include<QtNetwork/QLocalSocket>
#include<QFileInfo>
#include<QMetaObject>
#defineTIME_OUT500
SingleApplication::SingleApplication(int &argc, char *argv[])
:QApplication(argc, argv),
w(NULL),
localserver(NULL),
isRunnings(false)
{
//取应用程序名作为localServer的名字
QString filePath = QApplication::applicationFilePath();
QByteArray bFilePath = filePath.toUtf8();
serverName = bFilePath.toBase64();
InitLocalConnection();
}
/*****************************************************************
* 检查是否已有一个实例在运行, true有实例运行, false没有实例运行.
******************************************************************/
boolSingleApplication::isRunning()
{
return isRunnings;
}
/*****************************************************************
* 通过socket通讯实现程序单实例运行,监听到新的连接时触发该函数.
******************************************************************/
voidSingleApplication::NewLocalConnection()
{
QLocalSocket *localSocket = localserver->nextPendingConnection();
if(localSocket)
{
localSocket->waitForReadyRead(TIME_OUT * 2);
const QString message = QString::fromUtf8(localSocket->readAll()).trimmed();
delete localSocket;
if (message == QStringLiteral("toggle"))
{
ToggleWindow();
}
else
{
ActivateWindow();
}
}
}
QString SingleApplication::startupAction() const
{
if (isUos())
{
returnQStringLiteral("toggle");
}
returnarguments().contains(QStringLiteral("--toggle-window"))
? QStringLiteral("toggle")
: QStringLiteral("activate");
}
/*****************************************************************
* 通过socket通讯实现程序单实例运行，
* 初始化本地连接，如果连接不上server，则创建，否则退出
******************************************************************/
voidSingleApplication::InitLocalConnection()
{
isRunnings = false;
QLocalSocket socket;
socket.connectToServer(serverName);
if(socket.waitForConnected(TIME_OUT))
{
isRunnings = true;
socket.write(startupAction().toUtf8());
socket.flush();
socket.waitForBytesWritten(TIME_OUT);
return;
}
//连接不上服务器,就创建一个
NewLocalServer();
}
/*****************************************************************
* 创建localserver
******************************************************************/
voidSingleApplication::NewLocalServer()
{
localserver = newQLocalServer(this);
connect(localserver, &QLocalServer::newConnection, this, &SingleApplication::NewLocalConnection);
if(!localserver->listen(serverName))
{
// 此时监听失败,可能是程序崩溃时,残留进程服务导致的,移除
if(localserver->serverError() == QAbstractSocket::AddressInUseError)
{
localserver->removeServer(serverName);
localserver->listen(serverName); //重新监听
}
}
}
/*****************************************************************
* 激活主窗口
******************************************************************/
voidSingleApplication::ActivateWindow()
{
if(w)
{
if (!QMetaObject::invokeMethod(w, "showMainWindow", Qt::DirectConnection))
{
w->show();
w->setWindowState(w->windowState() & ~Qt::WindowMinimized | Qt::WindowActive);
}
}
}
voidSingleApplication::ToggleWindow()
{
if (w)
{
QMetaObject::invokeMethod(w, "sltHotKey", Qt::DirectConnection);
}
}