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Add option for Toggle.

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ArthurSonzogni 2021-07-10 11:03:01 +02:00 committed by Arthur Sonzogni
parent ae6473363d
commit fac373494d
7 changed files with 43 additions and 29 deletions
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2
include/ftxui/component/button.hpp
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@ -23,7 +23,7 @@ class ButtonBase : public ComponentBase {
// Constructor.
ButtonBase(ConstStringRef label,
std::function<void()> on_click,
ConstRef<ButtonOption> option);
ConstRef<ButtonOption> option = {});
~ButtonBase() override = default;
// Component implementation.

4
include/ftxui/component/component.hpp
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@ -39,7 +39,9 @@ Component Menu(const std::vector<std::wstring>* entries,
Component Radiobox(const std::vector<std::wstring>* entries,
int* selected_,
ConstRef<RadioboxOption> option = {});
Component Toggle(const std::vector<std::wstring>* entries, int* selected);
Component Toggle(const std::vector<std::wstring>* entries,
int* selected,
ConstRef<ToggleOption> option = {});
template <class T> // T = {int, float, long}
Component Slider(StringRef label, T* value, T min, T max, T increment);
Component Renderer(Component child, std::function<Element()>);

11
include/ftxui/component/component_options.hpp
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@ -46,6 +46,17 @@ struct RadioboxOption {
std::function<void()> on_change = []() {};
};
struct ToggleOption {
Decorator normal_style = dim;
Decorator focused_style = inverted;
Decorator selected_style = bold;
Decorator selected_focused_style = focused_style | selected_style;
// Callback.
std::function<void()> on_change = []() {};
std::function<void()> on_enter = []() {};
};
}; // namespace ftxui
#endif /* end of include guard: FTXUI_COMPONENT_COMPONENT_OPTIONS_HPP */

2
include/ftxui/component/radiobox.hpp
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@ -24,7 +24,7 @@ class RadioboxBase : public ComponentBase {
// Constructor.
RadioboxBase(const std::vector<std::wstring>* entries,
int* selected,
ConstRef<RadioboxOption> option);
ConstRef<RadioboxOption> option = {});
~RadioboxBase() override = default;
int focused = 0;

14
include/ftxui/component/toggle.hpp
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@ -21,21 +21,14 @@ class ToggleBase : public ComponentBase {
static ToggleBase* From(Component component);
// Constructor.
ToggleBase(const std::vector<std::wstring>* entries, int* selected);
ToggleBase(const std::vector<std::wstring>* entries,
int* selected,
ConstRef<ToggleOption> option = {});
~ToggleBase() override = default;
// State.
int focused = 0;
Decorator normal_style = dim;
Decorator focused_style = inverted;
Decorator selected_style = bold;
Decorator selected_focused_style = focused_style | selected_style;
// Callback.
std::function<void()> on_change = []() {};
std::function<void()> on_enter = []() {};
// Component implementation.
Element Render() override;
bool OnEvent(Event) override;
@ -46,6 +39,7 @@ class ToggleBase : public ComponentBase {
bool OnMouseEvent(Event event);
std::vector<Box> boxes_;
ConstRef<ToggleOption> option_;
};
} // namespace ftxui

25
src/ftxui/component/toggle.cpp
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@ -10,8 +10,10 @@
namespace ftxui {
Component Toggle(const std::vector<std::wstring>* entries, int* selected) {
return Make<ToggleBase>(entries, selected);
Component Toggle(const std::vector<std::wstring>* entries,
int* selected,
ConstRef<ToggleOption> option) {
return Make<ToggleBase>(entries, selected, std::move(option));
}
// static
@ -19,8 +21,10 @@ ToggleBase* ToggleBase::From(Component component) {
return static_cast<ToggleBase*>(component.get());
}
ToggleBase::ToggleBase(const std::vector<std::wstring>* entries, int* selected)
: entries_(entries), selected_(selected) {}
ToggleBase::ToggleBase(const std::vector<std::wstring>* entries,
int* selected,
ConstRef<ToggleOption> option)
: entries_(entries), selected_(selected), option_(std::move(option)) {}
Element ToggleBase::Render() {
Elements children;
@ -34,9 +38,10 @@ Element ToggleBase::Render() {
bool is_focused = (focused == int(i)) && is_toggle_focused;
bool is_selected = (*selected_ == int(i));
auto style = is_selected
? (is_focused ? selected_focused_style : selected_style)
: (is_focused ? focused_style : normal_style);
auto style = is_selected ? (is_focused ? option_->selected_focused_style
: option_->selected_style)
: (is_focused ? option_->focused_style
: option_->normal_style);
auto focus_management = !is_selected ? nothing
: is_toggle_focused ? focus
: select;
@ -64,12 +69,12 @@ bool ToggleBase::OnEvent(Event event) {
if (old_selected != *selected_) {
focused = *selected_;
on_change();
option_->on_change();
return true;
}
if (event == Event::Return) {
on_enter();
option_->on_enter();
return true;
}
@ -90,7 +95,7 @@ bool ToggleBase::OnMouseEvent(Event event) {
TakeFocus();
if (*selected_ != i) {
*selected_ = i;
on_change();
option_->on_change();
}
return true;
}

14
src/ftxui/component/toggle_test.cpp
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@ -83,10 +83,11 @@ TEST(ToggleTest, Tab) {
TEST(ToggleTest, OnChange) {
std::vector<std::wstring> entries = {L"1", L"2", L"3"};
int selected = 0;
auto toggle = Toggle(&entries, &selected);
int counter = 0;
ToggleBase::From(toggle)->on_change = [&] { counter++; };
auto option = ToggleOption();
option.on_change = [&] { counter++; };
auto toggle = Toggle(&entries, &selected, &option);
EXPECT_FALSE(toggle->OnEvent(Event::ArrowLeft)); // Reached far left.
EXPECT_EQ(counter, 0);
@ -111,10 +112,11 @@ TEST(ToggleTest, OnChange) {
TEST(ToggleTest, OnEnter) {
std::vector<std::wstring> entries = {L"1", L"2", L"3"};
int selected = 0;
auto toggle = Toggle(&entries, &selected);
int counter = 0;
ToggleBase::From(toggle)->on_enter = [&] { counter++; };
auto option = ToggleOption();
option.on_enter = [&] { counter++; };
auto toggle = Toggle(&entries, &selected, &option);
EXPECT_FALSE(toggle->OnEvent(Event::ArrowLeft)); // Reached far left.
EXPECT_TRUE(toggle->OnEvent(Event::Return));