1 files changed, 52 insertions, 0 deletions
diff --git a/Userland/Applications/DisplaySettings/ThemesSettingsWidget.cpp b/Userland/Applications/DisplaySettings/ThemesSettingsWidget.cpp
new file mode 100644
index 0000000000..5d86a07cac
--- /dev/null
+++ b/Userland/Applications/DisplaySettings/ThemesSettingsWidget.cpp
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2022, MacDue <macdue@dueutil.tech>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include "ThemesSettingsWidget.h"
+#include <AK/LexicalPath.h>
+#include <AK/QuickSort.h>
+#include <Applications/DisplaySettings/ThemesSettingsGML.h>
+#include <LibCore/DirIterator.h>
+#include <LibGUI/ConnectionToWindowServer.h>
+#include <LibGUI/ItemListModel.h>
+
+namespace DisplaySettings {
+
+ThemesSettingsWidget::ThemesSettingsWidget()
+{
+    load_from_gml(themes_settings_gml);
+    m_themes = Gfx::list_installed_system_themes();
+
+    auto current_theme_name = GUI::ConnectionToWindowServer::the().get_system_theme();
+
+    size_t current_theme_index;
+    m_theme_names.ensure_capacity(m_themes.size());
+    for (auto& theme_meta : m_themes) {
+        m_theme_names.append(theme_meta.name);
+        if (current_theme_name == theme_meta.name) {
+            m_selected_theme = &theme_meta;
+            current_theme_index = m_theme_names.size() - 1;
+        }
+    }
+    VERIFY(m_selected_theme);
+
+    m_theme_preview = find_descendant_of_type_named<GUI::Frame>("preview_frame")->add<ThemePreviewWidget>(palette());
+    m_themes_combo = *find_descendant_of_type_named<GUI::ComboBox>("themes_combo");
+    m_themes_combo->set_only_allow_values_from_model(true);
+    m_themes_combo->set_model(*GUI::ItemListModel<String>::create(m_theme_names));
+    m_themes_combo->on_change = [this](auto&, const GUI::ModelIndex& index) {
+        m_selected_theme = &m_themes.at(index.row());
+        m_theme_preview->set_theme(m_selected_theme->path);
+    };
+    m_themes_combo->set_selected_index(current_theme_index);
+}
+
+void ThemesSettingsWidget::apply_settings()
+{
+    if (m_selected_theme)
+        VERIFY(GUI::ConnectionToWindowServer::the().set_system_theme(m_selected_theme->path, m_selected_theme->name));
+}
+
+}