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Refactor TerminalUI::set_ui_options

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Take advantage of Optional monadic operations
This commit is contained in:
Maxime Coste 2021-07-09 23:43:14 +10:00
parent 428ddeb97b
commit ac6420ee8d
1 changed files with 24 additions and 51 deletions
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75
src/terminal_ui.cc
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@ -1377,64 +1377,37 @@ void TerminalUI::enable_mouse(bool enabled)
void TerminalUI::set_ui_options(const Options& options)
{
{
auto it = options.find("terminal_assistant"_sv);
if (it == options.end() or it->value == "clippy")
m_assistant = assistant_clippy;
else if (it->value == "cat")
m_assistant = assistant_cat;
else if (it->value == "dilbert")
m_assistant = assistant_dilbert;
else if (it->value == "none" or it->value == "off")
m_assistant = ConstArrayView<StringView>{};
}
auto get_boolean_option = [&](StringView name, bool default_value) {
auto it = options.find(name);
return it == options.end() ? default_value
: (it->value == "yes" or it->value == "true");
auto find = [&](StringView name) -> Optional<StringView> {
if (auto it = options.find(name); it != options.end())
return StringView{it->value};
return {};
};
m_status_on_top = get_boolean_option("terminal_status_on_top", false);
m_set_title = get_boolean_option("terminal_set_title", true);
auto assistant = find("terminal_assistant").value_or("clippy");
if (assistant == "clippy")
m_assistant = assistant_clippy;
else if (assistant == "cat")
m_assistant = assistant_cat;
else if (assistant == "dilbert")
m_assistant = assistant_dilbert;
else if (assistant == "none" or assistant == "off")
m_assistant = ConstArrayView<StringView>{};
{
auto it = options.find("terminal_shift_function_key"_sv);
m_shift_function_key = it != options.end() ?
str_to_int_ifp(it->value).value_or(default_shift_function_key)
: default_shift_function_key;
}
auto to_bool = [](StringView s) { return s == "yes" or s == "true"; };
{
enable_mouse(get_boolean_option("terminal_enable_mouse", true));
m_status_on_top = find("terminal_status_on_top").map(to_bool).value_or(false);
m_set_title = find("terminal_set_title").map(to_bool).value_or(true);
m_synchronized = find("terminal_synchronized").map(to_bool).value_or(false);
auto wheel_up_it = options.find("terminal_wheel_up_button"_sv);
m_wheel_up_button = wheel_up_it != options.end() ?
str_to_int_ifp(wheel_up_it->value).value_or(4) : 4;
m_shift_function_key = find("terminal_shift_function_key").map(str_to_int_ifp).value_or(default_shift_function_key);
auto wheel_down_it = options.find("terminal_wheel_down_button"_sv);
m_wheel_down_button = wheel_down_it != options.end() ?
str_to_int_ifp(wheel_down_it->value).value_or(5) : 5;
enable_mouse(find("terminal_enable_mouse").map(to_bool).value_or(true));
m_wheel_up_button = find("terminal_wheel_up_button").map(str_to_int_ifp).value_or(4);
m_wheel_down_button = find("terminal_wheel_down_button").map(str_to_int_ifp).value_or(5);
m_wheel_scroll_amount = find("terminal_wheel_scroll_amount").map(str_to_int_ifp).value_or(3);
auto wheel_scroll_amount_it = options.find("terminal_wheel_scroll_amount"_sv);
m_wheel_scroll_amount = wheel_scroll_amount_it != options.end() ?
str_to_int_ifp(wheel_scroll_amount_it->value).value_or(3) : 3;
}
{
auto it = options.find("terminal_padding_char"_sv);
if (it == options.end())
// Defaults to tilde.
m_padding_char = '~';
else if (it->value.column_length() < 1)
// Do not allow empty string, use space instead.
m_padding_char = ' ';
else
m_padding_char = it->value[0_char];
}
m_padding_fill = get_boolean_option("terminal_padding_fill", false);
m_synchronized = get_boolean_option("terminal_synchronized", false);
m_padding_char = find("terminal_padding_char").map([](StringView s) { return s.column_length() < 1 ? ' ' : s[0_char]; }).value_or(Codepoint{'~'});
m_padding_fill = find("terminal_padding_fill").map(to_bool).value_or(false);
}
}