katja: Update to ftxui 6

cli/CMakeLists.txt

@@ -1,6 +1,6 @@
 FetchContent_Declare(ftxui
 	GIT_REPOSITORY https://github.com/ArthurSonzogni/ftxui
-	GIT_TAG v5.0.0
+	GIT_TAG v6.0.2
 	GIT_PROGRESS TRUE
 	GIT_SHALLOW TRUE
 	EXCLUDE_FROM_ALL

cli/component.cpp

@@ -1,41 +1,58 @@
 #include "component.hpp"
 
+#include <algorithm>
+
 namespace katja
 {
-    PageContainer::PageContainer(std::vector<std::pair<std::string, Page>> pages)
+    ScreenContainer::ScreenContainer(std::vector<std::pair<std::string, Page>> pages, std::function<void()> on_enter)
+        : on_enter(on_enter)
     {
         ftxui::Components menu_pages;
 
         std::transform(std::cbegin(pages), std::cend(pages), std::back_inserter(menu_entries),
                 [](const std::pair<std::string, Page>& pair) { return pair.first; });
-        std::transform(std::cbegin(pages), std::cend(pages), std::back_inserter(menu_pages),
+        std::transform(std::cbegin(pages), std::cend(pages), std::back_inserter(this->menu_pages),
                 [](const std::pair<std::string, Page>& pair) { return pair.second; });
+        std::copy(std::cbegin(this->menu_pages), std::cend(this->menu_pages), std::back_inserter(menu_pages));
 
         ftxui::MenuOption menu_option = ftxui::MenuOption::Horizontal();
-        this->menu = ftxui::Menu(&this->menu_entries, &this->menu_selected, menu_option);
+        this->menu = ftxui::Toggle(&this->menu_entries, &this->menu_selected);
 
-        this->content = ftxui::Container::Tab(menu_pages, &this->menu_selected);
+        this->content = ftxui::Container::Tab(std::move(menu_pages), &this->menu_selected);
     }
 
-    ftxui::Element PageContainer::Render()
+    ftxui::Element ScreenContainer::OnRender()
     {
         return ftxui::vbox({
             this->menu->Render(),
+            ftxui::separator(),
             this->content->Render()
         });
     }
 
-    bool PageContainer::OnEvent(ftxui::Event event)
+    bool ScreenContainer::OnEvent(ftxui::Event event)
     {
         if (event.character() == "q" && this->on_enter)
         {
             on_enter();
             return true;
         }
-        return menu->OnEvent(event);
+        int previously = this->menu_selected;
+        bool result = menu->OnEvent(event);
+
+        if (previously != this->menu_selected)
+        {
+            this->menu_pages.at(this->menu_selected)->Load();
+        }
+        return result;
     }
 
-    ftxui::Element WelcomePage::Render()
+    ftxui::Component Screen(std::vector<std::pair<std::string, Page>> pages, std::function<void()> on_enter)
+    {
+        return std::make_shared<ScreenContainer>(std::move(pages), on_enter);
+    }
+
+    ftxui::Element WelcomePage::OnRender()
     {
         return ftxui::text("Select an action in the menu.");
     }
@@ -53,7 +70,7 @@ namespace katja
     {
     }
 
-    ftxui::Element UpdatesPage::Render()
+    ftxui::Element UpdatesPage::OnRender()
     {
         std::vector<std::shared_ptr<ftxui::Node>> lines;
 

cli/component.hpp

@@ -1,6 +1,6 @@
 #pragma once
 
-#include <algorithm>
+#include <ftxui/component/event.hpp>
 #include <ftxui/component/component_base.hpp>
 #include <ftxui/component/component.hpp>
 
@@ -15,28 +15,31 @@ namespace katja
     };
 
     using Page = std::shared_ptr<PageBase>;
+    using Pages = std::vector<Page>;
 
-    class PageContainer final : public ftxui::ComponentBase
+    class ScreenContainer final : public ftxui::ComponentBase
     {
         int menu_selected{ 0 };
         ftxui::Component menu;
         ftxui::Component content;
         std::vector<std::string> menu_entries;
-
-    public:
+        Pages menu_pages;
         std::function<void()> on_enter;
 
-        PageContainer(std::vector<std::pair<std::string, Page>> pages);
+    public:
+        ScreenContainer(std::vector<std::pair<std::string, Page>> pages, std::function<void()> on_enter);
 
-        ftxui::Element Render() override;
+        ftxui::Element OnRender() override;
         bool OnEvent(ftxui::Event event) override;
     };
 
+    ftxui::Component Screen(std::vector<std::pair<std::string, Page>> pages, std::function<void()> on_enter);
+
     class WelcomePage final : public PageBase
     {
     public:
         void Load() override;
-        ftxui::Element Render() override;
+        ftxui::Element OnRender() override;
     };
 
     class UpdatesPage final : public PageBase
@@ -47,7 +50,7 @@ namespace katja
         explicit UpdatesPage(std::vector<package_identifier>&& updatable);
 
         void Load() override;
-        ftxui::Element Render() override;
+        ftxui::Element OnRender() override;
     };
 
     class SearchPage final : public PageBase

cli/main.cpp

@@ -21,12 +21,11 @@ int main(int argc, const char **argv)
 
         auto screen = ftxui::ScreenInteractive::Fullscreen();
 
-        auto container = std::make_shared<katja::PageContainer>(std::vector<std::pair<std::string, katja::Page>>{
+        auto container = Screen(std::vector<std::pair<std::string, katja::Page>>{
             { "Home", std::make_shared<katja::WelcomePage>() },
             { "Updates", std::make_shared<katja::UpdatesPage>(std::move(updates)) },
             { "Search", std::make_shared<katja::SearchPage>() }
-        });
-        container->on_enter = screen.ExitLoopClosure();
+        }, screen.ExitLoopClosure());
 
         screen.Loop(container);
     }