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#include <string>
#include <utility>
#include "caf/all.hpp"
#include "caf/detail/scope_guard.hpp"
CAF_PUSH_WARNINGS
#include <QMessageBox>
#include <QInputDialog>
CAF_POP_WARNINGS
#include "chatwidget.hpp"
using namespace std;
using namespace caf;
ChatWidget::ChatWidget(QWidget* parent, Qt::WindowFlags f)
: super(parent, f),
input_(nullptr),
output_(nullptr) {
// nop
}
ChatWidget::~ChatWidget() {
// nop
}
void ChatWidget::init(actor_system& system) {
super::init(system);
set_message_handler ([=](actor_companion* self) -> message_handler {
return {
[=](join_atom, const group& what) {
if (chatroom_) {
self->send(chatroom_, name_ + " has left the chatroom");
self->leave(chatroom_);
}
self->join(what);
print(("*** joined " + to_string(what)).c_str());
chatroom_ = what;
self->send(what, name_ + " has entered the chatroom");
},
[=](set_name_atom, string& name) {
self->send(chatroom_, name_ + " is now known as " + name);
name_ = std::move(name);
print("*** changed name to " + QString::fromUtf8(name_.c_str()));
},
[=](quit_atom) {
quit_and_close();
},
[=](const string& txt) {
// don't print own messages
if (self != self->current_sender())
print(QString::fromUtf8(txt.c_str()));
},
[=](const group_down_msg& gdm) {
print("*** chatroom offline: "
+ QString::fromUtf8(to_string(gdm.source).c_str()));
}
};
});
}
void ChatWidget::sendChatMessage() {
auto cleanup = detail::make_scope_guard([=] {
input()->setText(QString());
});
QString line = input()->text();
if (line.startsWith('/')) {
vector<string> words;
split(words, line.midRef(1).toUtf8().constData(), is_any_of(" "));
message_builder mb;
if (words.size() > 1) {
// convert first word to an atom
mb.append(atom_from_string(words.front()))
.append(words.begin() + 1, words.end());
};
auto res = mb.apply({
[=](join_atom, const string& mod, const string& g) {
auto x = system().groups().get(mod, g);
if (! x)
print("*** error: "
+ QString::fromUtf8(to_string(x.error()).c_str()));
else
self()->send(self(), atom("join"), std::move(*x));
},
[=](set_name_atom atm, string& name) {
send_as(as_actor(), as_actor(), atm, std::move(name));
}
});
if (! res)
print("*** list of commands:\n"
"/join <module> <group id>\n"
"/setName <new name>\n");
return;
}
if (name_.empty()) {
print("*** please set a name before sending messages");
return;
}
if (! chatroom_) {
print("*** no one is listening... please join a group");
return;
}
string msg = name_;
msg += ": ";
msg += line.toUtf8().constData();
print("<you>: " + input()->text());
send_as(as_actor(), chatroom_, std::move(msg));
}
void ChatWidget::joinGroup() {
if (name_.empty()) {
QMessageBox::information(this, "No Name, No Chat",
"Please set a name first.");
return;
}
auto gname = QInputDialog::getText(this,
"Join Group",
"Please enter a group as <module>:<id>",
QLineEdit::Normal,
"remote:chatroom@localhost:4242");
int pos = gname.indexOf(':');
if (pos < 0) {
QMessageBox::warning(this, "Not a Group", "Invalid format");
return;
}
string mod = gname.left(pos).toUtf8().constData();
string gid = gname.midRef(pos+1).toUtf8().constData();
auto x = system().groups().get(mod, gid);
if (! x)
QMessageBox::critical(this, "Error", to_string(x.error()).c_str());
else
self()->send(self(), join_atom::value, std::move(*x));
}
void ChatWidget::changeName() {
auto name = QInputDialog::getText(this, "Change Name",
"Please enter a new name");
if (! name.isEmpty())
send_as(as_actor(), as_actor(), atom("setName"), name.toUtf8().constData());
}
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