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#include "client_manager.hh"
#include "buffer_manager.hh"
#include "command_manager.hh"
#include "event_manager.hh"
#include "face_registry.hh"
#include "file.hh"
#include "user_interface.hh"
#include "window.hh"
namespace Kakoune
{
ClientManager::ClientManager() = default;
ClientManager::~ClientManager() = default;
String ClientManager::generate_name() const
{
for (int i = 0; true; ++i)
{
String name = "unnamed" + to_string(i);
if (validate_client_name(name))
return name;
}
}
Client* ClientManager::create_client(std::unique_ptr<UserInterface>&& ui,
EnvVarMap env_vars,
StringView init_commands)
{
Buffer& buffer = **BufferManager::instance().begin();
WindowAndSelections ws = get_free_window(buffer);
Client* client = new Client{std::move(ui), std::move(ws.window),
std::move(ws.selections), std::move(env_vars),
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_face("Error") });
client->context().hooks().run_hook("RuntimeError", error.what(),
client->context());
}
catch (Kakoune::client_removed&)
{
m_clients.pop_back();
return nullptr;
}
client->ui().set_input_callback([client, this]() {
try
{
client->handle_available_input();
}
catch (Kakoune::runtime_error& error)
{
client->context().print_status({ error.what(), get_face("Error") });
client->context().hooks().run_hook("RuntimeError", error.what(),
client->context());
}
catch (Kakoune::client_removed&)
{
ClientManager::instance().remove_client(*client);
}
});
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);
}
WindowAndSelections ClientManager::get_free_window(Buffer& buffer)
{
for (auto it = m_free_windows.rbegin(), end = m_free_windows.rend();
it != end; ++it)
{
auto& w = it->window;
if (&w->buffer() == &buffer)
{
w->forget_timestamp();
WindowAndSelections res = std::move(*it);
m_free_windows.erase(it.base()-1);
res.selections.update();
return res;
}
}
return WindowAndSelections{ std::unique_ptr<Window>{new Window{buffer}},
SelectionList{ buffer, Selection{} } };
}
void ClientManager::add_free_window(std::unique_ptr<Window>&& window, SelectionList selections)
{
Buffer& buffer = window->buffer();
m_free_windows.push_back({ std::move(window), SelectionList{ std::move(selections) }, buffer.timestamp() });
}
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().is_editing())
throw runtime_error("client '" + client->context().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)
{
client->context().change_buffer(*buf);
break;
}
}
}
auto end = std::remove_if(m_free_windows.begin(), m_free_windows.end(),
[&buffer](const WindowAndSelections& ws)
{ return &ws.window->buffer() == &buffer; });
m_free_windows.erase(end, m_free_windows.end());
}
bool ClientManager::validate_client_name(StringView name) const
{
auto it = find_if(m_clients, [&](const std::unique_ptr<Client>& client)
{ return client->context().name() == name; });
return it == m_clients.end();
}
Client* ClientManager::get_client_ifp(StringView name)
{
for (auto& client : m_clients)
{
if (client->context().name() == name)
return client.get();
}
return nullptr;
}
Client& ClientManager::get_client(StringView name)
{
Client* client = get_client_ifp(name);
if (not client)
throw runtime_error("no client named: " + name);
return *client;
}
void ClientManager::redraw_clients() const
{
for (auto& client : m_clients)
client->redraw_ifn();
}
void ClientManager::clear_mode_trashes() const
{
for (auto& client : m_clients)
client->input_handler().clear_mode_trash();
}
CandidateList ClientManager::complete_client_name(StringView prefix,
ByteCount cursor_pos) const
{
auto real_prefix = prefix.substr(0, cursor_pos);
CandidateList result;
CandidateList subsequence_result;
for (auto& client : m_clients)
{
const String& name = client->context().name();
if (prefix_match(name, real_prefix))
result.push_back(name);
if (subsequence_match(name, real_prefix))
subsequence_result.push_back(name);
}
return result.empty() ? subsequence_result : result;
}
}
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