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Remove menu.hpp

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ArthurSonzogni
2021-07-10 12:59:36 +02:00
committed by Arthur Sonzogni
parent 0ca7da630b
commit d5cb4648d2
7 changed files with 100 additions and 146 deletions
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187
src/ftxui/component/menu.cpp
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@@ -5,13 +5,110 @@
#include "ftxui/component/captured_mouse.hpp" // for CapturedMouse
#include "ftxui/component/component.hpp" // for CapturedMouse
#include "ftxui/component/component.hpp" // for Component
#include "ftxui/component/event.hpp" // for Event, Event::ArrowDown, Event::ArrowUp, Event::Return, Event::Tab, Event::TabReverse
#include "ftxui/component/menu.hpp"
#include "ftxui/component/mouse.hpp" // for Mouse, Mouse::Left, Mouse::Released
#include "ftxui/component/screen_interactive.hpp" // for Component
namespace ftxui {
/// @brief A list of items. The user can navigate through them.
/// @ingroup component
class MenuBase : public ComponentBase {
public:
MenuBase(const std::vector<std::wstring>* entries,
int* selected,
Ref<MenuOption> option)
: entries_(entries), selected_(selected), option_(option) {}
Element Render() {
Elements elements;
bool is_menu_focused = Focused();
boxes_.resize(entries_->size());
for (size_t i = 0; i < entries_->size(); ++i) {
bool is_focused = (focused_entry() == int(i)) && is_menu_focused;
bool is_selected = (*selected_ == int(i));
auto style = is_selected ? (is_focused ? option_->style_selected_focused
: option_->style_selected)
: (is_focused ? option_->style_focused
: option_->style_normal);
auto focus_management = !is_selected ? nothing
: is_menu_focused ? focus
: select;
auto icon = is_selected ? L"> " : L" ";
elements.push_back(text(icon + entries_->at(i)) | style |
focus_management | reflect(boxes_[i]));
}
return vbox(std::move(elements));
}
bool OnEvent(Event event) {
if (!CaptureMouse(event))
return false;
if (event.is_mouse())
return OnMouseEvent(event);
if (!Focused())
return false;
int old_selected = *selected_;
if (event == Event::ArrowUp || event == Event::Character('k'))
(*selected_)--;
if (event == Event::ArrowDown || event == Event::Character('j'))
(*selected_)++;
if (event == Event::Tab && entries_->size())
*selected_ = (*selected_ + 1) % entries_->size();
if (event == Event::TabReverse && entries_->size())
*selected_ = (*selected_ + entries_->size() - 1) % entries_->size();
*selected_ = std::max(0, std::min(int(entries_->size()) - 1, *selected_));
if (*selected_ != old_selected) {
focused_entry() = *selected_;
option_->on_change();
return true;
}
if (event == Event::Return) {
option_->on_enter();
return true;
}
return false;
}
bool OnMouseEvent(Event event) {
if (!CaptureMouse(event))
return false;
for (int i = 0; i < int(boxes_.size()); ++i) {
if (!boxes_[i].Contain(event.mouse().x, event.mouse().y))
continue;
TakeFocus();
focused_entry() = i;
if (event.mouse().button == Mouse::Left &&
event.mouse().motion == Mouse::Released) {
if (*selected_ != i) {
*selected_ = i;
option_->on_change();
}
return true;
}
}
return false;
}
int& focused_entry() { return option_->focused_entry(); }
protected:
const std::vector<std::wstring>* const entries_;
int* selected_ = 0;
Ref<MenuOption> option_;
std::vector<Box> boxes_;
};
/// @brief A list of text. The focused element is selected.
/// @param entries The list of entries in the menu.
/// @param selected The index of the currently selected element.
@@ -45,94 +142,6 @@ Component Menu(const std::vector<std::wstring>* entries,
return Make<MenuBase>(entries, selected, std::move(option));
}
// static
MenuBase* MenuBase::From(Component component) {
return static_cast<MenuBase*>(component.get());
}
MenuBase::MenuBase(const std::vector<std::wstring>* entries,
int* selected,
Ref<MenuOption> option)
: entries_(entries), selected_(selected), option_(option) {}
Element MenuBase::Render() {
Elements elements;
bool is_menu_focused = Focused();
boxes_.resize(entries_->size());
for (size_t i = 0; i < entries_->size(); ++i) {
bool is_focused = (focused == int(i)) && is_menu_focused;
bool is_selected = (*selected_ == int(i));
auto style = is_selected ? (is_focused ? option_->style_selected_focused
: option_->style_selected)
: (is_focused ? option_->style_focused
: option_->style_normal);
auto focus_management = !is_selected ? nothing
: is_menu_focused ? focus
: select;
auto icon = is_selected ? L"> " : L" ";
elements.push_back(text(icon + entries_->at(i)) | style | focus_management |
reflect(boxes_[i]));
}
return vbox(std::move(elements));
}
bool MenuBase::OnEvent(Event event) {
if (!CaptureMouse(event))
return false;
if (event.is_mouse())
return OnMouseEvent(event);
if (!Focused())
return false;
int old_selected = *selected_;
if (event == Event::ArrowUp || event == Event::Character('k'))
(*selected_)--;
if (event == Event::ArrowDown || event == Event::Character('j'))
(*selected_)++;
if (event == Event::Tab && entries_->size())
*selected_ = (*selected_ + 1) % entries_->size();
if (event == Event::TabReverse && entries_->size())
*selected_ = (*selected_ + entries_->size() - 1) % entries_->size();
*selected_ = std::max(0, std::min(int(entries_->size()) - 1, *selected_));
if (*selected_ != old_selected) {
focused = *selected_;
option_->on_change();
return true;
}
if (event == Event::Return) {
option_->on_enter();
return true;
}
return false;
}
bool MenuBase::OnMouseEvent(Event event) {
if (!CaptureMouse(event))
return false;
for (int i = 0; i < int(boxes_.size()); ++i) {
if (!boxes_[i].Contain(event.mouse().x, event.mouse().y))
continue;
TakeFocus();
focused = i;
if (event.mouse().button == Mouse::Left &&
event.mouse().motion == Mouse::Released) {
if (*selected_ != i) {
*selected_ = i;
option_->on_change();
}
return true;
}
}
return false;
}
} // namespace ftxui
// Copyright 2020 Arthur Sonzogni. All rights reserved.