Run: Store and present recent Run command history in a ComboBox.

We now store the last 25 inputs ran in Run in a simple text file under
.config (~/.config/RunHistory.txt)

Userland/Applications/Run/Run.gml

@@ -31,7 +31,7 @@
             text_alignment: "CenterLeft"
         }
 
-        @GUI::TextBox {
+        @GUI::ComboBox {
             name: "path"
         }
     }

Userland/Applications/Run/RunWindow.cpp

@@ -25,10 +25,12 @@
  */
 
 #include "RunWindow.h"
+#include <AK/LexicalPath.h>
 #include <AK/URL.h>
 #include <AK/URLParser.h>
 #include <Applications/Run/RunGML.h>
 #include <LibCore/File.h>
+#include <LibCore/StandardPaths.h>
 #include <LibDesktop/Launcher.h>
 #include <LibGUI/Button.h>
 #include <LibGUI/Event.h>
@@ -44,7 +46,11 @@
 #include <unistd.h>
 
 RunWindow::RunWindow()
+    : m_path_history()
+    , m_path_history_model(GUI::ItemListModel<String>::create(m_path_history))
 {
+    load_history();
+
     auto app_icon = GUI::Icon::default_icon("app-run");
 
     set_title("Run");
@@ -59,8 +65,9 @@ RunWindow::RunWindow()
     m_icon_image_widget = *main_widget.find_descendant_of_type_named<GUI::ImageWidget>("icon");
     m_icon_image_widget->set_bitmap(app_icon.bitmap_for_size(32));
 
-    m_path_text_box = *main_widget.find_descendant_of_type_named<GUI::TextBox>("path");
+    m_path_combo_box = *main_widget.find_descendant_of_type_named<GUI::ComboBox>("path");
-    m_path_text_box->on_return_pressed = [this] {
+    m_path_combo_box->set_model(m_path_history_model);
+    m_path_combo_box->on_return_pressed = [this] {
         m_ok_button->click();
     };
 
@@ -78,7 +85,7 @@ RunWindow::RunWindow()
     m_browse_button->on_click = [this](auto) {
         Optional<String> path = GUI::FilePicker::get_open_filepath(this);
         if (path.has_value())
-            m_path_text_box->set_text(path.value().view());
+            m_path_combo_box->set_text(path.value().view());
     };
 }
 
@@ -102,11 +109,16 @@ void RunWindow::event(Core::Event& event)
 
 void RunWindow::do_run()
 {
-    auto run_input = m_path_text_box->text();
+    auto run_input = m_path_combo_box->text().trim_whitespace();
 
     hide();
 
     if (run_via_launch(run_input) || run_as_command(run_input)) {
+        // Remove any existing history entry, prepend the successful run string to history and save.
+        m_path_history.remove_all_matching([&](String v) { return v == run_input; });
+        m_path_history.prepend(run_input);
+        save_history();
+
         close();
         return;
     }
@@ -168,3 +180,35 @@ bool RunWindow::run_via_launch(const String& run_input)
 
     return true;
 }
+
+String RunWindow::history_file_path()
+{
+    return LexicalPath::canonicalized_path(String::formatted("{}/{}", Core::StandardPaths::config_directory(), "RunHistory.txt"));
+}
+
+void RunWindow::load_history()
+{
+    m_path_history.clear();
+    auto file_or_error = Core::File::open(history_file_path(), Core::IODevice::ReadOnly);
+    if (file_or_error.is_error())
+        return;
+
+    auto file = file_or_error.release_value();
+    while (!file->eof()) {
+        auto line = file->read_line();
+        if (!line.is_empty() && !line.is_whitespace())
+            m_path_history.append(line);
+    }
+}
+
+void RunWindow::save_history()
+{
+    auto file_or_error = Core::File::open(history_file_path(), Core::IODevice::WriteOnly);
+    if (file_or_error.is_error())
+        return;
+
+    auto file = file_or_error.release_value();
+    // Write the first 25 items of history
+    for (int i = 0; i < min(static_cast<int>(m_path_history.size()), 25); i++)
+        file->write(String::formatted("{}\n", m_path_history[i]));
+}

Userland/Applications/Run/RunWindow.h

@@ -27,8 +27,9 @@
 #pragma once
 
 #include <LibGUI/Button.h>
+#include <LibGUI/ComboBox.h>
 #include <LibGUI/ImageWidget.h>
-#include <LibGUI/TextBox.h>
+#include <LibGUI/ItemListModel.h>
 #include <LibGUI/Window.h>
 
 class RunWindow final : public GUI::Window {
@@ -45,9 +46,16 @@ private:
     bool run_as_command(const String& run_input);
     bool run_via_launch(const String& run_input);
 
+    String history_file_path();
+    void load_history();
+    void save_history();
+
+    Vector<String> m_path_history;
+    NonnullRefPtr<GUI::ItemListModel<String>> m_path_history_model;
+
     RefPtr<GUI::ImageWidget> m_icon_image_widget;
     RefPtr<GUI::Button> m_ok_button;
     RefPtr<GUI::Button> m_cancel_button;
     RefPtr<GUI::Button> m_browse_button;
-    RefPtr<GUI::TextBox> m_path_text_box;
+    RefPtr<GUI::ComboBox> m_path_combo_box;
 };

Userland/Applications/Run/main.cpp

@@ -35,14 +35,14 @@
 
 int main(int argc, char** argv)
 {
-    if (pledge("stdio recvfd sendfd thread accept cpath rpath unix fattr proc exec", nullptr) < 0) {
+    if (pledge("stdio recvfd sendfd thread accept cpath rpath wpath unix fattr proc exec", nullptr) < 0) {
         perror("pledge");
         return 1;
     }
 
     auto app = GUI::Application::construct(argc, argv);
 
-    if (pledge("stdio recvfd sendfd thread accept rpath unix proc exec", nullptr) < 0) {
+    if (pledge("stdio recvfd sendfd thread accept cpath rpath wpath unix proc exec", nullptr) < 0) {
         perror("pledge");
         return 1;
     }