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#include <string>
#include <utility>
#include "caf/all.hpp"
#include "caf/detail/scope_guard.hpp"
CAF_PUSH_WARNINGS
#include <QInputDialog>
#include <QMessageBox>
CAF_POP_WARNINGS
#include "chatwidget.hpp"
using namespace std;
using namespace caf;
ChatWidget::ChatWidget(QWidget* parent)
: super(parent), 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) {
auto groups = self->joined_groups();
for (const auto& grp : groups) {
print(("*** leave " + to_string(grp)).c_str());
self->send(grp, name_ + " has left the chatroom");
self->leave(grp);
}
print(("*** join " + to_string(what)).c_str());
self->join(what);
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()));
},
[=](leave_atom) {
auto groups = self->joined_groups();
for (const auto& grp : groups) {
std::cout << "*** leave " << to_string(grp) << std::endl;
self->send(grp, name_ + " has left the chatroom");
self->leave(grp);
}
},
};
});
}
void ChatWidget::sendChatMessage() {
auto cleanup = detail::make_scope_guard([=] { input()->setText(QString()); });
QString line = input()->text();
if (line.isEmpty()) {
// Ignore empty lines.
} else if (line.startsWith('/')) {
vector<string> words;
auto utf8 = QStringView{line}.mid(1).toUtf8();
auto sv = caf::string_view{utf8.constData(),
static_cast<size_t>(utf8.size())};
split(words, sv, is_any_of(" "));
if (words.size() == 3 && words[0] == "join") {
if (auto x = system().groups().get(words[1], words[2]))
send_as(as_actor(), as_actor(), join_atom_v, std::move(*x));
else
print("*** error: " + QString::fromUtf8(to_string(x.error()).c_str()));
} else if (words.size() == 2 && words[0] == "setName")
send_as(as_actor(), as_actor(), set_name_atom_v, std::move(words[1]));
else {
print("*** list of commands:\n"
"/join <module> <group id>\n"
"/setName <new name>\n");
return;
}
} else {
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 = QStringView{gname}.mid(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_v, 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(), set_name_atom_v, name.toUtf8().constData());
}
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