TaskResult Char(const KeyInfo& info) override{
auto handleKeyPress = [&](){
m_autoComplete.Forget();
return handle_key_press(info.key, m_textObject->GetTextBuffer()) ?
TaskResult::DRAW : TaskResult::NONE;
};
if (is_exit_key(info.key)){
return Commit(info.layerType);
}
else if (info.key.Is(key::tab) && m_settings.Get(ts_ParseExpressions)){
return handle_completion(m_autoComplete, m_textObject->GetTextBuffer()) ?
TaskResult::DRAW :
handleKeyPress();
}
return handle_command_key(info.key, m_textObject).Visit(
[&](TextChange& cmd){
m_autoComplete.Forget();
// Fixme: Need to support undo
cmd.Do();
m_states.Did(cmd);
return TaskResult::DRAW;
},
handleKeyPress);
}
int ui_browser__run(struct ui_browser *self, struct newtExitStruct *es)
{
if (ui_browser__refresh(self) < 0)
return -1;
while (1) {
off_t offset;
newtFormRun(self->form, es);
if (es->reason != NEWT_EXIT_HOTKEY)
break;
if (is_exit_key(es->u.key))
return es->u.key;
switch (es->u.key) {
case NEWT_KEY_DOWN:
if (self->index == self->nr_entries - 1)
break;
++self->index;
if (self->index == self->top_idx + self->height) {
++self->top_idx;
self->seek(self, +1, SEEK_CUR);
}
break;
case NEWT_KEY_UP:
if (self->index == 0)
break;
--self->index;
if (self->index < self->top_idx) {
--self->top_idx;
self->seek(self, -1, SEEK_CUR);
}
break;
case NEWT_KEY_PGDN:
case ' ':
if (self->top_idx + self->height > self->nr_entries - 1)
break;
offset = self->height;
if (self->index + offset > self->nr_entries - 1)
offset = self->nr_entries - 1 - self->index;
self->index += offset;
self->top_idx += offset;
self->seek(self, +offset, SEEK_CUR);
break;
case NEWT_KEY_PGUP:
if (self->top_idx == 0)
break;
if (self->top_idx < self->height)
offset = self->top_idx;
else
offset = self->height;
self->index -= offset;
self->top_idx -= offset;
self->seek(self, -offset, SEEK_CUR);
break;
case NEWT_KEY_HOME:
ui_browser__reset_index(self);
break;
case NEWT_KEY_END:
offset = self->height - 1;
if (offset >= self->nr_entries)
offset = self->nr_entries - 1;
self->index = self->nr_entries - 1;
self->top_idx = self->index - offset;
self->seek(self, -offset, SEEK_END);
break;
default:
return es->u.key;
}
if (ui_browser__refresh(self) < 0)
return -1;
}
return 0;
}
