added initial tui

sharing/linux/BUILD

@@ -25,8 +25,8 @@ refresh_compile_commands(
     # For example, specify a dict of targets and any flags required to build.
     targets = {
         ":fast_init": "",
-        ":nearby_connections_manager": "",
         ":nearby_sharing_cli": "",
+        "//sharing/linux/tui:tui": "",
     },
     # No need to add flags already in .bazelrc. They're automatically picked up.
     # If you don't need flags, a list of targets is also okay, as is a single target string.
@@ -59,18 +59,6 @@ cc_binary(
     deps = [":fast_init"],
 )
 
-cc_binary(
-    name = "nearby_connections",
-    srcs = [
-        "nearby_connections.cc",
-    ],
-    deps = [
-      ":nearby_connections_manager",
-      ":fast_init",
-      "//connections:core",
-      "//internal/platform/implementation/linux:linux"
-    ]
-)
 
 cc_binary(
     name = "nearby_sharing_cli",

sharing/linux/tui/main.cc

@@ -1,19 +1,185 @@
-#include "ftxui/dom/elements.hpp"
-#include "ftxui/screen/screen.hpp"
-#include <iostream>
+#include <unistd.h>
+
+#include <ftxui/component/component.hpp>
+#include <ftxui/component/screen_interactive.hpp>
+#include <ftxui/dom/elements.hpp>
+#include <ftxui/screen/box.hpp>
+
+#include <string>
+
+using namespace ftxui;
+
+std::string OpenZenityFilePicker() {
+  FILE* pipe = popen("zenity --file-selection 2>/dev/null", "r");
+  if (!pipe) {
+    return {};
+  }
+
+  char buffer[4096];
+  std::string result;
+
+  if (fgets(buffer, sizeof(buffer), pipe) != nullptr) {
+    result = buffer;
+  }
+
+  pclose(pipe);
+
+  // Remove trailing newline.
+  if (!result.empty() && result.back() == '\n') {
+    result.pop_back();
+  }
+
+  return result;
+}
+
+enum class Page {
+  FilePicker,
+  FileSelected,
+};
 
 int main() {
-  using namespace ftxui;
-  auto document = text(L"Hello, FTXUI 6.1.9!") | border;
-  auto screen = Screen::Create(Dimension::Fit(document));
+  auto screen = ScreenInteractive::Fullscreen();
+  screen.TrackMouse(true);
 
-  Render(screen, document);
-  screen.Print();
+  Page current_screen = Page::FilePicker;
+  auto title_color = Color::RGB(0xab, 0xda, 0xc4);
 
-  // Wait for user input before exiting.
-  std::cout << '\n' << "Press Enter to exit..." << std::flush;
-  std::cin.ignore(9999, '\n');
-  std::cin.clear();
+  // clang-format off
+  auto title = vbox({
+    text("┏━┓╻ ╻╻┏━╸╻┏    ┏━┓╻ ╻┏━┓┏━┓┏━╸") | color(title_color),
+    text("┃┓┃┃ ┃┃┃  ┣┻┓   ┗━┓┣━┫┣━┫┣┳┛┣╸ ") | color(title_color),
+    text("┗┻┛┗━┛╹┗━╸╹ ╹   ┗━┛╹ ╹╹ ╹╹┗╸┗━╸") | color(title_color),
+  });
+
+  auto file_icon = vbox({
+      text("    __________ ") | center | color(title_color),
+      text("   / |       | ") | center | color(title_color),
+      text("  /__|       | ") | center | color(title_color),
+      text(" | --------- | ") | center | color(title_color),
+      text(" | --------- | ") | center | color(title_color),
+      text(" | --------- | ") | center | color(title_color),
+      text(" | --------- | ") | center | color(title_color),
+      text(" |___________| ") | center | color(title_color),
+  });
+  // clang-format on
+
+  char hostname[256] = {};
+  gethostname(hostname, sizeof(hostname));
+
+  bool picker_hovered = false;
+  std::string selected_file;
+
+  Box picker_box;
+  auto RenderFilePickerScreen = [&] {
+    auto picker_card =
+        vbox({
+            file_icon,
+            separatorEmpty(),
+            text("Click to open file picker") | bold | center,
+            separatorEmpty(),
+            text("No file selected") | dim | center,
+        }) |
+        borderStyled(picker_hovered ? Color::White : title_color) |
+        size(WIDTH, GREATER_THAN, 38) | size(HEIGHT, EQUAL, 15) |
+        reflect(picker_box);
+
+    return vbox({
+               filler(),
+               hbox({
+                   filler(),
+                   picker_card,
+                   filler(),
+               }),
+               filler(),
+           }) |
+           flex;
+  };
+
+  auto RenderFileSelectedScreen = [&] {
+    return vbox({
+               text("File selected") | bold | center | color(title_color),
+               separator(),
+               paragraph(selected_file) | center,
+               separatorEmpty(),
+               text("Press Backspace to choose another file") | dim | center,
+           }) |
+           borderStyled(title_color) | flex;
+  };
+
+  auto component = Renderer([&] {
+    auto visible_as_box =
+        window(text(" Visible as "),
+               vbox({
+                   text(""),
+                   text(std::string(hostname)) | bold | center,
+                   text(""),
+               })) |
+        size(WIDTH, GREATER_THAN, 24) | size(HEIGHT, EQUAL, 5);
+    auto main_panel = current_screen == Page::FilePicker
+                          ? RenderFilePickerScreen()
+                          : RenderFileSelectedScreen();
+    auto picker_card =
+        vbox({
+            file_icon,
+            separatorEmpty(),
+            text("Click to open file picker") | bold | center,
+            separatorEmpty(),
+            paragraph(selected_file.empty() ? "No file selected"
+                                            : selected_file) |
+                dim | center,
+        }) |
+        borderStyled(picker_hovered ? Color::White : title_color) |
+        size(WIDTH, GREATER_THAN, 38) | size(HEIGHT, EQUAL, 15) |
+        reflect(picker_box);
+
+    return vbox({
+               title,
+               separator(),
+               hbox({
+                   vbox({
+                       visible_as_box,
+                   }),
+
+                   main_panel | flex,
+               }) | flex,
+           }) |
+           size(WIDTH, GREATER_THAN, 80) | size(HEIGHT, GREATER_THAN, 24);
+  });
+
+  auto app = CatchEvent(component, [&](Event event) {
+    if (event == Event::Character('q') || event == Event::Escape) {
+      screen.ExitLoopClosure()();
+      return true;
+    }
+
+    if (!event.is_mouse()) {
+      return false;
+    }
+
+    auto mouse = event.mouse();
+
+    bool inside_picker =
+        mouse.x >= picker_box.x_min && mouse.x <= picker_box.x_max &&
+        mouse.y >= picker_box.y_min && mouse.y <= picker_box.y_max;
+
+    picker_hovered = inside_picker;
+
+    if (inside_picker && mouse.button == Mouse::Left &&
+        mouse.motion == Mouse::Pressed) {
+      std::string path = OpenZenityFilePicker();
+
+      if (!path.empty()) {
+        selected_file = path;
+        current_screen = Page::FileSelected;
+      }
+
+      return true;
+    }
+
+    return false;
+  });
+
+  screen.Loop(app);
 
   return 0;
 }