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SystemMenu: Untangle app/category discovery and GUI building

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I was a bit confused by the fact that a method named `build_system_menu()`
first enumerates a directory. Moving the app/category discovery to a dedicated
function that returns the GUI-relevant information makes this process a bit
less surprising.

As an added bonus, `g_app_category_menus` was actually only a temporary mapping,
and didn't need to be global. In theory, SystemMenu should use a handful fewer
of bytes now.
This commit is contained in:
Ben Wiederhake 2020-07-27 02:29:09 +02:00 • committed by Andreas Kling
parent e8ed7f829e
commit 404981a892
1 changed files with 28 additions and 24 deletions
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52
Services/SystemMenu/main.cpp
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@ -48,8 +48,6 @@ struct AppMetadata {
};
Vector<AppMetadata> g_apps;
HashMap<String, NonnullRefPtr<GUI::Menu>> g_app_category_menus;
struct ThemeMetadata {
String name;
String path;
@ -61,6 +59,7 @@ Vector<ThemeMetadata> g_themes;
RefPtr<GUI::Menu> g_themes_menu;
GUI::ActionGroup g_themes_group;
static Vector<String> discover_apps_and_categories();
static NonnullRefPtr<GUI::Menu> build_system_menu();
int main(int argc, char** argv)
@ -98,41 +97,46 @@ int main(int argc, char** argv)
return app->exec();
}
NonnullRefPtr<GUI::Menu> build_system_menu()
Vector<String> discover_apps_and_categories()
{
HashTable<String> seen_app_categories;
{
Core::DirIterator dt("/res/apps", Core::DirIterator::SkipDots);
while (dt.has_next()) {
auto af_name = dt.next_path();
auto af_path = String::format("/res/apps/%s", af_name.characters());
auto af = Core::ConfigFile::open(af_path);
if (!af->has_key("App", "Name") || !af->has_key("App", "Executable"))
continue;
auto app_name = af->read_entry("App", "Name");
auto app_executable = af->read_entry("App", "Executable");
auto app_category = af->read_entry("App", "Category");
auto app_icon_path = af->read_entry("Icons", "16x16");
g_apps.append({ app_executable, app_name, app_icon_path, app_category });
seen_app_categories.set(app_category);
}
quick_sort(g_apps, [](auto& a, auto& b) { return a.name < b.name; });
Core::DirIterator dt("/res/apps", Core::DirIterator::SkipDots);
while (dt.has_next()) {
auto af_name = dt.next_path();
auto af_path = String::format("/res/apps/%s", af_name.characters());
auto af = Core::ConfigFile::open(af_path);
if (!af->has_key("App", "Name") || !af->has_key("App", "Executable"))
continue;
auto app_name = af->read_entry("App", "Name");
auto app_executable = af->read_entry("App", "Executable");
auto app_category = af->read_entry("App", "Category");
auto app_icon_path = af->read_entry("Icons", "16x16");
g_apps.append({ app_executable, app_name, app_icon_path, app_category });
seen_app_categories.set(app_category);
}
quick_sort(g_apps, [](auto& a, auto& b) { return a.name < b.name; });
Vector<String> sorted_app_categories;
for (auto& category : seen_app_categories)
for (auto& category : seen_app_categories) {
sorted_app_categories.append(category);
}
quick_sort(sorted_app_categories);
return sorted_app_categories;
}
NonnullRefPtr<GUI::Menu> build_system_menu()
{
const Vector<String> sorted_app_categories = discover_apps_and_categories();
auto system_menu = GUI::Menu::construct("\xE2\x9A\xA1"); // HIGH VOLTAGE SIGN
// First we construct all the necessary app category submenus.
HashMap<String, NonnullRefPtr<GUI::Menu>> app_category_menus;
for (const auto& category : sorted_app_categories) {
if (g_app_category_menus.contains(category))
if (app_category_menus.contains(category))
continue;
auto& category_menu = system_menu->add_submenu(category);
g_app_category_menus.set(category, category_menu);
app_category_menus.set(category, category_menu);
}
// Then we create and insert all the app menu items into the right place.
@ -147,7 +151,7 @@ NonnullRefPtr<GUI::Menu> build_system_menu()
dbg() << "App " << app.name << " has icon with size " << icon->size();
#endif
auto parent_menu = g_app_category_menus.get(app.category).value_or(*system_menu);
auto parent_menu = app_category_menus.get(app.category).value_or(*system_menu);
parent_menu->add_action(GUI::Action::create(app.name, icon.ptr(), [app_identifier](auto&) {
dbg() << "Activated app with ID " << app_identifier;
const auto& bin = g_apps[app_identifier].executable;