add nf7::gui::ConfigPopup

common/gui_popup.cc

@@ -45,4 +45,31 @@ void IOSocketListPopup::Update() noexcept {
   }
 }
 
+
+void ConfigPopup::Update() noexcept {
+  if (nf7::gui::Popup::Begin()) {
+    ImGui::TextUnformatted(name());
+    ImGui::InputTextMultiline("##text", &text_);
+
+    if (ImGui::Button("apply")) {
+      try {
+        onApply(text_);
+        msg_ = "OK";
+      } catch (nf7::Exception& e) {
+        msg_ = e.msg();
+      }
+    }
+    ImGui::SameLine();
+    if (ImGui::Button("reset")) {
+      text_ = onOpen();
+    }
+
+    if (msg_.size()) {
+      ImGui::Bullet();
+      ImGui::TextUnformatted(msg_.c_str());
+    }
+    ImGui::EndPopup();
+  }
+}
+
 }  // namespace nf7::gui

common/gui_popup.hh

@@ -29,6 +29,8 @@ class Popup {
     return ImGui::BeginPopup(name_, flags_);
   }
 
+  const char* name() const noexcept { return name_; }
+
  private:
   const char* name_;
   ImGuiWindowFlags flags_;
@@ -36,6 +38,7 @@ class Popup {
   std::optional<ImGuiPopupFlags> open_flags_;
 };
 
+
 class IOSocketListPopup final :
     public nf7::FileBase::Feature, private Popup {
  public:
@@ -61,4 +64,26 @@ class IOSocketListPopup final :
   std::string is_, os_;
 };
 
+
+class ConfigPopup final :
+    public nf7::FileBase::Feature, private Popup {
+ public:
+  ConfigPopup(const char* name = "ConfigPopup") noexcept : Popup(name) {
+  }
+
+  void Open() noexcept {
+    msg_  = "";
+    text_ = onOpen();
+    nf7::gui::Popup::Open();
+  }
+  void Update() noexcept override;
+
+  std::function<std::string()> onOpen;
+  std::function<void(const std::string&)> onApply;
+
+ private:
+  std::string msg_;
+  std::string text_;
+};
+
 }  // namespace nf7::gui