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#include "client_manager.hh"
#include "event_manager.hh"
#include "buffer_manager.hh"
namespace Kakoune
{
void ClientManager::create_client(std::unique_ptr<UserInterface>&& ui,
Buffer& buffer, int event_fd)
{
m_clients.emplace_back(new Client{std::move(ui), get_unused_window_for_buffer(buffer)});
InputHandler* input_handler = &m_clients.back()->input_handler;
Context* context = &m_clients.back()->context;
EventManager::instance().watch(event_fd, [input_handler, context, this](int fd) {
try
{
input_handler->handle_available_inputs(*context);
context->window().forget_timestamp();
}
catch (Kakoune::runtime_error& error)
{
context->print_status(error.description());
}
catch (Kakoune::client_removed&)
{
ClientManager::instance().remove_client_by_context(*context);
EventManager::instance().unwatch(fd);
close(fd);
}
ClientManager::instance().redraw_clients();
});
redraw_clients();
}
void ClientManager::remove_client_by_context(Context& context)
{
for (auto it = m_clients.begin(); it != m_clients.end(); ++it)
{
if (&(*it)->context == &context)
{
m_clients.erase(it);
return;
}
}
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;
// 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(Context& context, String name)
{
auto it = find_if(m_clients, [&name](std::unique_ptr<Client>& client)
{ return client->name == name; });
if (it != m_clients.end() and &(*it)->context != &context)
throw runtime_error("name not unique: " + name);
for (auto& client : m_clients)
{
if (&client->context == &context)
{
client->name = std::move(name);
return;
}
}
throw runtime_error("no client for current context");
}
Context& ClientManager::get_client_context(const String& name)
{
auto it = find_if(m_clients, [&name](std::unique_ptr<Client>& client)
{ return client->name == name; });
if (it != m_clients.end())
return (*it)->context;
throw runtime_error("no client named: " + name);
}
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(),
context.window().status_line());
}
}
}
}
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