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sanya
291
third_party/socket.io-client-cpp/examples/QT/SioChatDemo/mainwindow.cpp
vendored
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291
third_party/socket.io-client-cpp/examples/QT/SioChatDemo/mainwindow.cpp
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#include "mainwindow.h"
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#include "ui_mainwindow.h"
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#include <functional>
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#include <mutex>
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#include <cstdlib>
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#define kURL "ws://localhost:3000"
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#ifdef WIN32
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#define BIND_EVENT(IO,EV,FN) \
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do{ \
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socket::event_listener_aux l = FN;\
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IO->on(EV,l);\
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} while(0)
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#else
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#define BIND_EVENT(IO,EV,FN) \
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IO->on(EV,FN)
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#endif
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MainWindow::MainWindow(QWidget *parent) :
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QMainWindow(parent),
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ui(new Ui::MainWindow),
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_io(new client()),
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m_typingItem(NULL),
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m_dialog()
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{
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ui->setupUi(this);
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using std::placeholders::_1;
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using std::placeholders::_2;
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using std::placeholders::_3;
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using std::placeholders::_4;
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socket::ptr sock = _io->socket();
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BIND_EVENT(sock,"new message",std::bind(&MainWindow::OnNewMessage,this,_1,_2,_3,_4));
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BIND_EVENT(sock,"user joined",std::bind(&MainWindow::OnUserJoined,this,_1,_2,_3,_4));
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BIND_EVENT(sock,"user left",std::bind(&MainWindow::OnUserLeft,this,_1,_2,_3,_4));
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BIND_EVENT(sock,"typing",std::bind(&MainWindow::OnTyping,this,_1,_2,_3,_4));
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BIND_EVENT(sock,"stop typing",std::bind(&MainWindow::OnStopTyping,this,_1,_2,_3,_4));
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BIND_EVENT(sock,"login",std::bind(&MainWindow::OnLogin,this,_1,_2,_3,_4));
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_io->set_socket_open_listener(std::bind(&MainWindow::OnConnected,this,std::placeholders::_1));
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_io->set_close_listener(std::bind(&MainWindow::OnClosed,this,_1));
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_io->set_fail_listener(std::bind(&MainWindow::OnFailed,this));
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connect(this,SIGNAL(RequestAddListItem(QListWidgetItem*)),this,SLOT(AddListItem(QListWidgetItem*)));
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connect(this,SIGNAL(RequestRemoveListItem(QListWidgetItem*)),this,SLOT(RemoveListItem(QListWidgetItem*)));
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connect(this,SIGNAL(RequestToggleInputs(bool)),this,SLOT(ToggleInputs(bool)));
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}
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MainWindow::~MainWindow()
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{
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_io->socket()->off_all();
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_io->socket()->off_error();
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delete ui;
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}
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void MainWindow::SendBtnClicked()
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{
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QLineEdit* messageEdit = this->findChild<QLineEdit*>("messageEdit");
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QString text = messageEdit->text();
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if(text.length()>0)
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{
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QByteArray bytes = text.toUtf8();
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std::string msg(bytes.data(),bytes.length());
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_io->socket()->emit("new message",msg);
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text.append(" : You");
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QListWidgetItem *item = new QListWidgetItem(text);
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item->setTextAlignment(Qt::AlignRight);
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Q_EMIT RequestAddListItem(item);
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messageEdit->clear();
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}
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}
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void MainWindow::OnMessageReturn()
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{
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this->SendBtnClicked();
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}
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void MainWindow::ShowLoginDialog()
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{
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m_dialog.reset(new NicknameDialog(this));
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connect(m_dialog.get(),SIGNAL(accepted()),this,SLOT(NicknameAccept()));
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connect(m_dialog.get(),SIGNAL(rejected()),this,SLOT(NicknameCancelled()));
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m_dialog->exec();
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}
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void MainWindow::showEvent(QShowEvent *event)
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{
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ShowLoginDialog();
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}
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void MainWindow::TypingStop()
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{
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m_timer.reset();
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_io->socket()->emit("stop typing");
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}
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void MainWindow::TypingChanged()
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{
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if(m_timer&&m_timer->isActive())
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{
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m_timer->stop();
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}
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else
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{
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_io->socket()->emit("typing");
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}
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m_timer.reset(new QTimer(this));
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connect(m_timer.get(),SIGNAL(timeout()),this,SLOT(TypingStop()));
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m_timer->setSingleShot(true);
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m_timer->start(1000);
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}
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void MainWindow::NicknameAccept()
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{
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m_name = m_dialog->getNickname();
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if(m_name.length()>0)
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{
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_io->connect(kURL);
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}
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}
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void MainWindow::NicknameCancelled()
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{
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QApplication::exit();
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}
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void MainWindow::AddListItem(QListWidgetItem* item)
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{
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this->findChild<QListWidget*>("listView")->addItem(item);
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}
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void MainWindow::RemoveListItem(QListWidgetItem* item)
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{
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QListWidget* list = this->findChild<QListWidget*>("listView");
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int row = list->row(item);
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delete list->takeItem(row);
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}
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void MainWindow::OnNewMessage(std::string const& name,message::ptr const& data,bool hasAck,message::list &ack_resp)
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{
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if(data->get_flag() == message::flag_object)
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{
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std::string msg = data->get_map()["message"]->get_string();
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std::string username = data->get_map()["username"]->get_string();
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QString label = QString::fromUtf8(username.data(),username.length());
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label.append(" : ");
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label.append(QString::fromUtf8(msg.data(),msg.length()));
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QListWidgetItem *item= new QListWidgetItem(label);
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Q_EMIT RequestAddListItem(item);
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}
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}
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void MainWindow::OnUserJoined(std::string const& name,message::ptr const& data,bool hasAck,message::list &ack_resp)
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{
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if(data->get_flag() == message::flag_object)
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{
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std::string name = data->get_map()["username"]->get_string();
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int numUser = data->get_map()["numUsers"]->get_int();
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QString label = QString::fromUtf8(name.data(),name.length());
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bool plural = numUser != 1;
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label.append(" joined\n");
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label.append(plural?"there are ":"there's ");
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QString digits;
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while(numUser>=10)
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{
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digits.insert(0,QChar((numUser%10)+'0'));
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numUser/=10;
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}
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digits.insert(0,QChar(numUser+'0'));
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label.append(digits);
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label.append(plural?" participants":" participant");
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QListWidgetItem *item= new QListWidgetItem(label);
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item->setTextAlignment(Qt::AlignHCenter);
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QFont font;
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font.setPointSize(9);
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item->setFont(font);
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Q_EMIT RequestAddListItem(item);
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}
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}
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void MainWindow::OnUserLeft(std::string const& name,message::ptr const& data,bool hasAck,message::list &ack_resp)
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{
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if(data->get_flag() == message::flag_object)
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{
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std::string name = data->get_map()["username"]->get_string();
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int numUser = data->get_map()["numUsers"]->get_int();
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QString label = QString::fromUtf8(name.data(),name.length());
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bool plural = numUser != 1;
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label.append(" left\n");
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label.append(plural?"there are ":"there's ");
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QString digits;
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while(numUser>=10)
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{
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digits.insert(0,QChar((numUser%10)+'0'));
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numUser/=10;
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}
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digits.insert(0,QChar(numUser+'0'));
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label.append(digits);
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label.append(plural?" participants":" participant");
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QListWidgetItem *item= new QListWidgetItem(label);
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item->setTextAlignment(Qt::AlignHCenter);
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QFont font;
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font.setPointSize(9);
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item->setFont(font);
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Q_EMIT RequestAddListItem(item);
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}
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}
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void MainWindow::OnTyping(std::string const& name,message::ptr const& data,bool hasAck,message::list &ack_resp)
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{
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if(m_typingItem == NULL)
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{
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std::string name = data->get_map()["username"]->get_string();
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QString label = QString::fromUtf8(name.data(),name.length());
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label.append(" is typing...");
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QListWidgetItem *item = new QListWidgetItem(label);
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item->setTextColor(QColor(200,200,200,255));
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m_typingItem = item;
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Q_EMIT RequestAddListItem(item);
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}
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}
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void MainWindow::OnStopTyping(std::string const& name,message::ptr const& data,bool hasAck,message::list &ack_resp)
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{
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if(m_typingItem != NULL)
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{
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Q_EMIT RequestRemoveListItem(m_typingItem);
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m_typingItem = NULL;
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}
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}
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void MainWindow::OnLogin(std::string const& name,message::ptr const& data,bool hasAck,message::list &ack_resp)
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{
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Q_EMIT RequestToggleInputs(true);
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int numUser = data->get_map()["numUsers"]->get_int();
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QString digits;
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bool plural = numUser !=1;
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while(numUser>=10)
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{
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digits.insert(0,QChar((numUser%10)+'0'));
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numUser/=10;
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}
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digits.insert(0,QChar(numUser+'0'));
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digits.insert(0,plural?"there are ":"there's ");
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digits.append(plural? " participants":" participant");
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QListWidgetItem *item = new QListWidgetItem(digits);
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item->setTextAlignment(Qt::AlignHCenter);
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QFont font;
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font.setPointSize(9);
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item->setFont(font);
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Q_EMIT RequestAddListItem(item);
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}
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void MainWindow::OnConnected(std::string const& nsp)
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{
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QByteArray bytes = m_name.toUtf8();
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std::string nickName(bytes.data(),bytes.length());
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_io->socket()->emit("add user", nickName);
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}
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void MainWindow::OnClosed(client::close_reason const& reason)
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{
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Q_EMIT RequestToggleInputs(false);
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}
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void MainWindow::OnFailed()
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{
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Q_EMIT RequestToggleInputs(false);
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}
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void MainWindow::ToggleInputs(bool loginOrNot)
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{
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if(loginOrNot)//already login
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{
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this->findChild<QWidget*>("messageEdit")->setEnabled(true);
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this->findChild<QWidget*>("listView")->setEnabled(true);
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// this->findChild<QWidget*>("sendBtn")->setEnabled(true);
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}
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else
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{
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this->findChild<QWidget*>("messageEdit")->setEnabled(false);
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this->findChild<QWidget*>("listView")->setEnabled(false);
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// this->findChild<QWidget*>("sendBtn")->setEnabled(false);
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ShowLoginDialog();
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}
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}
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