From 2c0cab26543e698602d244dc59add9924ae5f4b0 Mon Sep 17 00:00:00 2001
From: Krishna-13-cyber <krishnanarayanan132002@gmail.com>
Date: Sat, 8 Apr 2023 22:01:07 +0530
Subject: [PATCH] Add Dropdown Component Signed-off-by: Krishna Narayanan
 <krishnanarayanan132002@gmail.com>

---
 examples/Dropdown.qf    | 13 +++++++++++++
 include/quick-ftxui.hpp | 27 +++++++++++++++++++++++++--
 tests/test1.cpp         |  8 ++++++++
 3 files changed, 46 insertions(+), 2 deletions(-)
 create mode 100644 examples/Dropdown.qf

diff --git a/examples/Dropdown.qf b/examples/Dropdown.qf
new file mode 100644
index 0000000..02129f3
--- /dev/null
+++ b/examples/Dropdown.qf
@@ -0,0 +1,13 @@
+Vertical{
+    Dropdown{
+        [ "Physics"  "Maths"  "Chemistry"  "Biology"],
+        0
+    }
+    Slider{
+        "Slider 1: ",
+        50,
+        0,
+        100,
+        1
+    }
+}
\ No newline at end of file
diff --git a/include/quick-ftxui.hpp b/include/quick-ftxui.hpp
index b57862c..4554e79 100644
--- a/include/quick-ftxui.hpp
+++ b/include/quick-ftxui.hpp
@@ -33,13 +33,14 @@ struct expression;
 struct input;
 struct slider;
 struct menu;
+struct dropdown;
 
 enum block_alignment { VERTICAL, HORIZONTAL };
 
 typedef boost::variant<
     nil, boost::recursive_wrapper<button>, boost::recursive_wrapper<input>,
     boost::recursive_wrapper<slider>, boost::recursive_wrapper<menu>,
-    boost::recursive_wrapper<expression>>
+    boost::recursive_wrapper<dropdown>, boost::recursive_wrapper<expression>>
     node;
 
 struct button {
@@ -66,6 +67,11 @@ struct menu {
     int selected = 0;
 };
 
+struct dropdown {
+    std::vector<std::string> entries;
+    int selected = 0;
+};
+
 struct expression {
     block_alignment align;
     std::list<node> expr;
@@ -125,6 +131,11 @@ BOOST_FUSION_ADAPT_STRUCT(client::quick_ftxui_ast::menu,
                           (int, selected)
 )
 
+BOOST_FUSION_ADAPT_STRUCT(client::quick_ftxui_ast::dropdown,
+                          (std::vector<std::string>, entries)
+                          (int, selected)
+)
+
 BOOST_FUSION_ADAPT_STRUCT(client::quick_ftxui_ast::expression,
                           (client::quick_ftxui_ast::block_alignment, align)
                           (std::list<client::quick_ftxui_ast::node>, expr)
@@ -216,6 +227,12 @@ struct node_printer : boost::static_visitor<> {
             ftxui::Menu(&text.entries, (int *)&text.selected));
     }
 
+    void operator()(quick_ftxui_ast::dropdown const &text) const {
+        tab(indent + tabsize);
+        data->components.push_back(
+            ftxui::Dropdown(&text.entries, (int *)&text.selected));
+    }
+
     void operator()(quick_ftxui_ast::nil const &text) const {
         tab(indent + tabsize);
         std::cout << "nil: \"" << text << '"' << std::endl;
@@ -297,7 +314,11 @@ struct parser
         menu_comp %= qi::lit("Menu") >> '{' >> '[' >> *quoted_string >> ']' >>
                      ',' >> qi::int_ >> '}';
 
-        node = button_comp | input_comp | slider_comp | menu_comp | expression;
+        dropdown_comp %= qi::lit("Dropdown") >> '{' >> '[' >> *quoted_string >>
+                         ']' >> ',' >> qi::int_ >> '}';
+
+        node = button_comp | input_comp | slider_comp | menu_comp |
+               dropdown_comp | expression;
 
         expression = alignment_kw >> '{' >> *node >> '}';
 
@@ -314,6 +335,8 @@ struct parser
         button_comp;
     qi::rule<Iterator, quick_ftxui_ast::input(), ascii::space_type> input_comp;
     qi::rule<Iterator, quick_ftxui_ast::menu(), ascii::space_type> menu_comp;
+    qi::rule<Iterator, quick_ftxui_ast::dropdown(), ascii::space_type>
+        dropdown_comp;
     qi::rule<Iterator, std::string(), ascii::space_type> quoted_string;
     qi::rule<Iterator, quick_ftxui_ast::slider(), ascii::space_type>
         slider_comp;
diff --git a/tests/test1.cpp b/tests/test1.cpp
index 8645897..dae32ab 100644
--- a/tests/test1.cpp
+++ b/tests/test1.cpp
@@ -37,6 +37,10 @@ TEST_CASE("Parse Simple") {
                          " \"Biology\"], 0}}"));
     REQUIRE(parse_helper("Horizontal{Menu{[\"Physics\"  \"Maths\"  "
                          "\"Chemistry\"  \"Biology\"], 0}}"));
+    REQUIRE(!parse_helper(
+        "Vertical{Dropdown{[\"amool\"  \"bmpp\" \"abcd\" \"hello\"]}, 0}"));
+    REQUIRE(!parse_helper(
+        "Horizontal{Dropdown{[\"amool\"  \"bmpp\" \"abcd\" \"hello\"]}, 1}"));
 
     // expect fail
     REQUIRE(!parse_helper("\"amool\"{Button{\"amool\",\"bmpp\"}}"));
@@ -47,6 +51,10 @@ TEST_CASE("Parse Simple") {
     REQUIRE(!parse_helper("Horizontal_{_Button{\"amool\",\"bmpp\"}_}"));
     REQUIRE(!parse_helper("\"amool\"{Button{\"amool,\"bmpp\"}}"));
     REQUIRE(!parse_helper("Vertical{Button{\"amool\" . \"bmpp\"}}"));
+    REQUIRE(!parse_helper(
+        "Vertical{Dropdown{[\"amool\"  \"bmpp\" \"dmrr\" \"emss\"]}, 9}"));
+    REQUIRE(!parse_helper(
+        "Horizontal{Dropdown{[\"amool\"  \"bmpp\" \"dmrr\",\"emss\"]}, 4}"));
 }
 
 TEST_CASE("Parse Complex") {