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#include "context.hh"
#include "client.hh"
#include "user_interface.hh"
#include "window.hh"
namespace Kakoune
{
Context::Context() = default;
Context::Context(Editor& editor)
: m_editor(&editor) {}
Context::Context(Client& client, Editor& editor)
: m_client(&client), m_editor(&editor) {}
Context::~Context() = default;
Buffer& Context::buffer() const
{
if (not has_buffer())
throw runtime_error("no buffer in context");
return m_editor->buffer();
}
Editor& Context::editor() const
{
if (not has_editor())
throw runtime_error("no editor in context");
return *m_editor.get();
}
Window& Context::window() const
{
if (not has_window())
throw runtime_error("no window in context");
return *dynamic_cast<Window*>(m_editor.get());
}
bool Context::has_window() const
{
return (bool)m_editor and dynamic_cast<Window*>(m_editor.get());
}
Client& Context::client() const
{
if (not has_client())
throw runtime_error("no input handler in context");
return *m_client;
}
UserInterface& Context::ui() const
{
if (not has_ui())
throw runtime_error("no user interface in context");
return m_client->ui();
}
OptionManager& Context::options() const
{
if (has_window())
return window().options();
if (has_buffer())
return buffer().options();
return GlobalOptions::instance();
}
HookManager& Context::hooks() const
{
if (has_window())
return window().hooks();
if (has_buffer())
return buffer().hooks();
return GlobalHooks::instance();
}
KeymapManager& Context::keymaps() const
{
if (has_window())
return window().keymaps();
if (has_buffer())
return buffer().keymaps();
return GlobalKeymaps::instance();
}
void Context::print_status(DisplayLine status) const
{
if (has_client())
client().print_status(std::move(status));
}
void Context::push_jump()
{
const SelectionList& jump = editor().selections();
if (m_current_jump != m_jump_list.end())
{
auto begin = m_current_jump;
if (&editor().buffer() != &begin->buffer() or
(const SelectionList&)(*begin) != jump)
++begin;
m_jump_list.erase(begin, m_jump_list.end());
}
m_jump_list.erase(std::remove(begin(m_jump_list), end(m_jump_list), jump),
end(m_jump_list));
m_jump_list.push_back({editor().buffer(), jump});
m_current_jump = m_jump_list.end();
}
const DynamicSelectionList& Context::jump_forward()
{
if (m_current_jump != m_jump_list.end() and
m_current_jump + 1 != m_jump_list.end())
return *++m_current_jump;
throw runtime_error("no next jump");
}
const DynamicSelectionList& Context::jump_backward()
{
if (m_current_jump != m_jump_list.end() and
*m_current_jump != editor().selections())
{
push_jump();
return *--m_current_jump;
}
if (m_current_jump != m_jump_list.begin())
{
if (m_current_jump == m_jump_list.end())
{
push_jump();
--m_current_jump;
}
return *--m_current_jump;
}
throw runtime_error("no previous jump");
}
void Context::forget_jumps_to_buffer(Buffer& buffer)
{
for (auto it = m_jump_list.begin(); it != m_jump_list.end();)
{
if (&it->buffer() == &buffer)
{
if (it < m_current_jump)
--m_current_jump;
else if (it == m_current_jump)
m_current_jump = m_jump_list.end()-1;
it = m_jump_list.erase(it);
}
else
++it;
}
}
void Context::change_editor(Editor& editor)
{
m_editor.reset(&editor);
if (has_window())
{
if (has_ui())
window().set_dimensions(ui().dimensions());
window().hooks().run_hook("WinDisplay", buffer().name(), *this);
}
if (has_client())
client().reset_normal_mode();
}
}
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