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#include "client_manager.hh"
#include "buffer_manager.hh"
#include "color_registry.hh"
#include "command_manager.hh"
#include "event_manager.hh"
#include "file.hh"
#include "user_interface.hh"
#include "window.hh"
namespace Kakoune
{
Client::Client(std::unique_ptr<UserInterface>&& ui,
Window& window, String name)
: m_user_interface(std::move(ui)),
m_input_handler(*m_user_interface),
m_name(std::move(name))
{
kak_assert(not m_name.empty());
context().change_editor(window);
}
ClientManager::ClientManager() = default;
ClientManager::~ClientManager() = default;
String ClientManager::generate_name() const
{
for (int i = 0; true; ++i)
{
String name = "unnamed" + to_string(i);
bool found = false;
for (auto& client : m_clients)
{
if (client->m_name == name)
{
found = true;
break;
}
}
if (not found)
return name;
}
}
Client* ClientManager::create_client(std::unique_ptr<UserInterface>&& ui,
const String& init_commands)
{
Buffer& buffer = **BufferManager::instance().begin();
Client* client = new Client{std::move(ui), get_unused_window_for_buffer(buffer),
generate_name()};
m_clients.emplace_back(client);
try
{
CommandManager::instance().execute(init_commands, client->context());
}
catch (Kakoune::runtime_error& error)
{
client->context().print_status({ error.what(), get_color("Error") });
client->context().hooks().run_hook("RuntimeError", error.what(),
client->context());
}
catch (Kakoune::client_removed&)
{
m_clients.pop_back();
return nullptr;
}
client->m_user_interface->set_input_callback([client, this]() {
try
{
client->m_input_handler.handle_available_inputs();
client->context().window().forget_timestamp();
}
catch (Kakoune::runtime_error& error)
{
client->context().print_status({ error.what(), get_color("Error") });
client->context().hooks().run_hook("RuntimeError", error.what(),
client->context());
}
catch (Kakoune::client_removed&)
{
ClientManager::instance().remove_client(*client);
}
ClientManager::instance().redraw_clients();
});
redraw_clients();
return client;
}
void ClientManager::remove_client(Client& client)
{
for (auto it = m_clients.begin(); it != m_clients.end(); ++it)
{
if (it->get() == &client)
{
m_clients.erase(it);
return;
}
}
kak_assert(false);
}
Window& ClientManager::get_unused_window_for_buffer(Buffer& buffer)
{
for (auto& w : m_windows)
{
if (&w->buffer() != &buffer)
continue;
auto it = std::find_if(m_clients.begin(), m_clients.end(),
[&](const std::unique_ptr<Client>& client)
{ return &client->context().window() == w.get(); });
if (it == m_clients.end())
{
w->forget_timestamp();
return *w;
}
}
m_windows.emplace_back(new Window(buffer));
return *m_windows.back();
}
void ClientManager::ensure_no_client_uses_buffer(Buffer& buffer)
{
for (auto& client : m_clients)
{
client->context().forget_jumps_to_buffer(buffer);
if (&client->context().buffer() != &buffer)
continue;
if (client->context().editor().is_editing())
throw runtime_error("client '" + client->m_name + "' is inserting in '" +
buffer.display_name() + '\'');
// change client context to edit the first buffer which is not the
// specified one. As BufferManager stores buffer according to last
// access, this selects a sensible buffer to display.
for (auto& buf : BufferManager::instance())
{
if (buf != &buffer)
{
Window& w = get_unused_window_for_buffer(*buf);
client->context().change_editor(w);
break;
}
}
}
auto end = std::remove_if(m_windows.begin(), m_windows.end(),
[&buffer](const std::unique_ptr<Window>& w)
{ return &w->buffer() == &buffer; });
m_windows.erase(end, m_windows.end());
}
void ClientManager::set_client_name(Client& client, String name)
{
auto it = find_if(m_clients, [&name](std::unique_ptr<Client>& client)
{ return client->m_name == name; });
if (it != m_clients.end() and it->get() != &client)
throw runtime_error("name not unique: " + name);
client.m_name = std::move(name);
}
Client& ClientManager::get_client(const Context& context)
{
for (auto& client : m_clients)
{
if (&client->context() == &context)
return *client;
}
throw runtime_error("no client for current context");
}
Client& ClientManager::get_client(const String& name)
{
for (auto& client : m_clients)
{
if (client->m_name == name)
return *client;
}
throw runtime_error("no client named: " + name);
}
static DisplayLine generate_status_line(Client& client)
{
auto& context = client.context();
auto pos = context.editor().main_selection().last();
auto col = utf8::distance(context.buffer().iterator_at_line_begin(pos), pos);
std::ostringstream oss;
oss << context.buffer().display_name()
<< " " << (int)pos.line()+1 << ":" << (int)col+1;
if (context.buffer().is_modified())
oss << " [+]";
if (context.input_handler().is_recording())
oss << " [recording]";
if (context.buffer().flags() & Buffer::Flags::New)
oss << " [new file]";
oss << " [" << context.editor().selections().size() << " sel]";
if (context.editor().is_editing())
oss << " [insert]";
oss << " - " << client.name();
return { oss.str(), get_color("StatusLine") };
}
void ClientManager::redraw_clients() const
{
for (auto& client : m_clients)
{
Context& context = client->context();
if (context.window().timestamp() != context.buffer().timestamp())
{
DisplayCoord dimensions = context.ui().dimensions();
if (dimensions == DisplayCoord{0,0})
return;
context.window().set_dimensions(dimensions);
context.window().update_display_buffer();;
context.ui().draw(context.window().display_buffer(),
generate_status_line(*client));
}
}
}
}
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