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BufferCompleter: watch 'completions' option, and update completions when it changes

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This commit is contained in:
Maxime Coste 2013-03-12 19:23:41 +01:00
parent 2440a7e82e
commit 09e30c40e3
1 changed files with 43 additions and 20 deletions
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63
src/input_handler.cc
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@ -504,32 +504,53 @@ static std::pair<CandidateList, BufferIterator> complete_opt(const BufferIterato
return { {}, pos };
}
class BufferCompleter
class BufferCompleter : public OptionManagerWatcher
{
public:
void select(const Context& context, int offset)
BufferCompleter(const Context& context)
: m_context(context)
{
if (not setup_ifn(context))
m_context.options().register_watcher(*this);
}
~BufferCompleter()
{
m_context.options().unregister_watcher(*this);
}
BufferCompleter(const BufferCompleter&) = delete;
BufferCompleter operator=(const BufferCompleter&) = delete;
void select(int offset)
{
if (not setup_ifn())
return;
context.buffer().erase(m_position, m_position + m_completions[m_current_completion].length());
m_context.buffer().erase(m_position, m_position + m_completions[m_current_completion].length());
m_current_completion = (m_current_completion + offset) % m_completions.size();
context.buffer().insert(m_position, m_completions[m_current_completion]);
context.ui().menu_select(m_current_completion);
m_context.buffer().insert(m_position, m_completions[m_current_completion]);
m_context.ui().menu_select(m_current_completion);
}
void reset(const Context& context)
void reset()
{
m_position = BufferIterator();
context.ui().menu_hide();
m_context.ui().menu_hide();
}
private:
bool setup_ifn(const Context& context)
void on_option_changed(const Option& opt) override
{
if (opt.name() == "completions")
{
reset();
select(0);
}
}
bool setup_ifn()
{
if (not m_position.is_valid())
{
BufferIterator cursor = context.editor().selections().back().last();
auto completions = complete_opt(cursor, context.options());
BufferIterator cursor = m_context.editor().selections().back().last();
auto completions = complete_opt(cursor, m_context.options());
if (completions.first.empty())
completions = complete_word(cursor);
m_completions = std::move(completions.first);
@ -538,15 +559,16 @@ private:
assert(cursor >= completions.second);
m_position = completions.second;
DisplayCoord menu_pos = context.window().display_position(m_position);
context.ui().menu_show(m_completions, menu_pos, MenuStyle::Inline);
DisplayCoord menu_pos = m_context.window().display_position(m_position);
m_context.ui().menu_show(m_completions, menu_pos, MenuStyle::Inline);
m_completions.push_back(context.buffer().string(m_position, cursor));
m_completions.push_back(m_context.buffer().string(m_position, cursor));
m_current_completion = m_completions.size() - 1;
}
return true;
}
const Context& m_context;
BufferIterator m_position;
CandidateList m_completions;
int m_current_completion = -1;
@ -558,12 +580,13 @@ public:
Insert(InputHandler& input_handler, InsertMode mode)
: InputMode(input_handler),
m_inserter(context().editor(), mode),
m_completer(context()),
m_idle_timer{Clock::now() + idle_timeout,
[this](Timer& timer) {
context().hooks().run_hook("InsertIdle", "", context());
m_completer.reset(context());
m_completer.reset();
if (context().editor().selections().size() == 1)
m_completer.select(context(), 0);
m_completer.select(0);
}}
{
last_insert().first = mode;
@ -586,7 +609,7 @@ public:
if (key == Key::Escape or key == Key{ Key::Modifiers::Control, 'c' })
{
context().hooks().run_hook("InsertEnd", "", context());
m_completer.reset(context());
m_completer.reset();
reset_normal_mode();
}
else if (key == Key::Backspace)
@ -624,12 +647,12 @@ public:
m_inserter.insert(String() + '\t');
else if ( key == Key{ Key::Modifiers::Control, 'n' })
{
m_completer.select(context(), 1);
m_completer.select(1);
update_completions = false;
}
else if ( key == Key{ Key::Modifiers::Control, 'p' })
{
m_completer.select(context(), -1);
m_completer.select(-1);
update_completions = false;
}
@ -641,8 +664,8 @@ public:
private:
bool m_insert_reg = false;
IncrementalInserter m_inserter;
Timer m_idle_timer;
BufferCompleter m_completer;
Timer m_idle_timer;
};
}