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BufferCompleter: preserve completions when inserting

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try to narrow matches with entered prefix
This commit is contained in:
Maxime Coste 2013-03-19 19:12:55 +01:00
parent a19a788b94
commit 3f467ba451
1 changed files with 47 additions and 14 deletions
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61
src/input_handler.cc
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@ -524,14 +524,47 @@ public:
if (not setup_ifn())
return;
m_context.buffer().erase(m_position, m_position + m_completions[m_current_completion].length());
m_current_completion = (m_current_completion + offset) % (int)m_completions.size();
m_context.buffer().erase(m_position, m_position + m_matching_completions[m_current_completion].length());
m_current_completion = (m_current_completion + offset) % (int)m_matching_completions.size();
if (m_current_completion < 0)
m_current_completion += m_completions.size();
m_context.buffer().insert(m_position, m_completions[m_current_completion]);
m_current_completion += m_matching_completions.size();
m_context.buffer().insert(m_position, m_matching_completions[m_current_completion]);
m_context.ui().menu_select(m_current_completion);
}
void update()
{
if (m_position.is_valid())
{
BufferIterator cursor = m_context.editor().main_selection().last();
ByteCount longest_completion = std::max_element(m_all_completions.begin(), m_all_completions.end(),
[](const String& lhs, const String& rhs)
{ return lhs.length() < rhs.length(); })->length();
if (cursor > m_position and ByteCount{(int)(cursor - m_position)} < longest_completion)
{
String prefix = m_context.buffer().string(m_position, cursor);
m_matching_completions.clear();
for (auto& candidate : m_all_completions)
{
if (candidate.substr(0, prefix.length()) == prefix)
m_matching_completions.push_back(candidate);
}
if (not m_matching_completions.empty())
{
m_context.ui().menu_hide();
m_current_completion = m_matching_completions.size();
DisplayCoord menu_pos = m_context.window().display_position(m_position);
m_context.ui().menu_show(m_matching_completions, menu_pos, MenuStyle::Inline);
m_context.ui().menu_select(m_current_completion);
m_matching_completions.push_back(prefix);
return;
}
}
}
reset();
select(0);
}
void reset()
{
m_position = BufferIterator();
@ -555,24 +588,26 @@ private:
auto completions = complete_opt(cursor, m_context.options());
if (completions.first.empty())
completions = complete_word(cursor);
m_completions = std::move(completions.first);
if (m_completions.empty())
m_all_completions = std::move(completions.first);
if (m_all_completions.empty())
return false;
assert(cursor >= completions.second);
m_position = completions.second;
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(m_context.buffer().string(m_position, cursor));
m_current_completion = m_completions.size() - 1;
m_matching_completions = m_all_completions;
DisplayCoord menu_pos = m_context.window().display_position(m_position);
m_context.ui().menu_show(m_matching_completions, menu_pos, MenuStyle::Inline);
m_matching_completions.push_back(m_context.buffer().string(m_position, cursor));
m_current_completion = m_matching_completions.size() - 1;
}
return true;
}
const Context& m_context;
BufferIterator m_position;
CandidateList m_completions;
CandidateList m_all_completions;
CandidateList m_matching_completions;
int m_current_completion = -1;
};
@ -586,9 +621,7 @@ public:
m_idle_timer{Clock::now() + idle_timeout,
[this](Timer& timer) {
context().hooks().run_hook("InsertIdle", "", context());
m_completer.reset();
if (context().editor().selections().size() == 1)
m_completer.select(0);
m_completer.update();
}}
{
last_insert().first = mode;