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serenity/Userland/Services/Taskbar/main.cpp
networkException 695dfabc2e Taskbar: Update checked state of theme menu on global theme change
Previously we would assume that the theme would only change through the
taskbar menu. As the theme can also be changed in DisplaySettings, the
selected theme in the taskbar menu would get out of sync.

With this patch the menu will get updated every time the theme changes
and the menu is not shown.
2022-06-17 19:46:30 +01:00

298 lines
11 KiB
C++

/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, Jakob-Niklas See <git@nwex.de>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "ShutdownDialog.h"
#include "TaskbarWindow.h"
#include <AK/Debug.h>
#include <AK/QuickSort.h>
#include <LibConfig/Client.h>
#include <LibCore/ConfigFile.h>
#include <LibCore/EventLoop.h>
#include <LibCore/StandardPaths.h>
#include <LibCore/System.h>
#include <LibDesktop/AppFile.h>
#include <LibDesktop/Launcher.h>
#include <LibGUI/ActionGroup.h>
#include <LibGUI/Application.h>
#include <LibGUI/ConnectionToWindowManagerServer.h>
#include <LibGUI/ConnectionToWindowServer.h>
#include <LibGUI/Menu.h>
#include <LibGUI/MenuItem.h>
#include <LibGUI/Process.h>
#include <LibGfx/SystemTheme.h>
#include <LibMain/Main.h>
#include <WindowServer/Window.h>
#include <serenity.h>
#include <signal.h>
#include <spawn.h>
#include <stdio.h>
#include <sys/wait.h>
#include <unistd.h>
static ErrorOr<Vector<String>> discover_apps_and_categories();
struct WindowRefence {
GUI::Window* window { nullptr };
GUI::Window* get()
{
VERIFY(window);
return window;
}
};
static ErrorOr<NonnullRefPtr<GUI::Menu>> build_system_menu(WindowRefence&);
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
TRY(Core::System::pledge("stdio recvfd sendfd proc exec rpath unix sigaction"));
auto app = TRY(GUI::Application::try_create(arguments));
Config::pledge_domain("Taskbar");
Config::monitor_domain("Taskbar");
app->event_loop().register_signal(SIGCHLD, [](int) {
// Wait all available children
while (waitpid(-1, nullptr, WNOHANG) > 0)
;
});
TRY(Core::System::pledge("stdio recvfd sendfd proc exec rpath unix"));
GUI::ConnectionToWindowManagerServer::the();
Desktop::Launcher::ensure_connection();
TRY(Core::System::pledge("stdio recvfd sendfd proc exec rpath"));
// FIXME: Have to awkwardly pass a reference to the window pointer to build_system_menu(), that will be resolved later.
// (It is always valid at use)
WindowRefence window_ref {};
auto menu = TRY(build_system_menu(window_ref));
menu->realize_menu_if_needed();
auto window = TRY(TaskbarWindow::try_create(move(menu)));
window_ref.window = window.ptr();
window->show();
window->make_window_manager(
WindowServer::WMEventMask::WindowStateChanges
| WindowServer::WMEventMask::WindowRemovals
| WindowServer::WMEventMask::WindowIconChanges
| WindowServer::WMEventMask::WorkspaceChanges);
return app->exec();
}
struct AppMetadata {
String executable;
String name;
String category;
GUI::Icon icon;
bool run_in_terminal;
};
Vector<AppMetadata> g_apps;
Color g_menu_selection_color;
Vector<Gfx::SystemThemeMetaData> g_themes;
RefPtr<GUI::Menu> g_themes_menu;
GUI::ActionGroup g_themes_group;
ErrorOr<Vector<String>> discover_apps_and_categories()
{
HashTable<String> seen_app_categories;
Desktop::AppFile::for_each([&](auto af) {
if (access(af->executable().characters(), X_OK) == 0) {
g_apps.append({ af->executable(), af->name(), af->category(), af->icon(), af->run_in_terminal() });
seen_app_categories.set(af->category());
}
});
quick_sort(g_apps, [](auto& a, auto& b) { return a.name < b.name; });
Vector<String> sorted_app_categories;
TRY(sorted_app_categories.try_ensure_capacity(seen_app_categories.size()));
for (auto const& category : seen_app_categories)
sorted_app_categories.unchecked_append(category);
quick_sort(sorted_app_categories);
return sorted_app_categories;
}
ErrorOr<NonnullRefPtr<GUI::Menu>> build_system_menu(WindowRefence& window_ref)
{
Vector<String> const sorted_app_categories = TRY(discover_apps_and_categories());
auto system_menu = TRY(GUI::Menu::try_create("\xE2\x9A\xA1")); // HIGH VOLTAGE SIGN
system_menu->add_action(GUI::Action::create("&About SerenityOS", Gfx::Bitmap::try_load_from_file("/res/icons/16x16/ladyball.png").release_value_but_fixme_should_propagate_errors(), [&](auto&) {
GUI::Process::spawn_or_show_error(window_ref.get(), "/bin/About"sv);
}));
system_menu->add_separator();
// First we construct all the necessary app category submenus.
auto category_icons = TRY(Core::ConfigFile::open("/res/icons/SystemMenu.ini"));
HashMap<String, NonnullRefPtr<GUI::Menu>> app_category_menus;
Function<void(String const&)> create_category_menu;
create_category_menu = [&](String const& category) {
if (app_category_menus.contains(category))
return;
String parent_category, child_category = category;
for (ssize_t i = category.length() - 1; i >= 0; i--) {
if (category[i] == '/') {
parent_category = category.substring(0, i);
child_category = category.substring(i + 1);
}
}
GUI::Menu* parent_menu;
if (parent_category.is_empty()) {
parent_menu = system_menu;
} else {
parent_menu = app_category_menus.get(parent_category).value();
if (!parent_menu) {
create_category_menu(parent_category);
parent_menu = app_category_menus.get(parent_category).value();
VERIFY(parent_menu);
}
}
auto& category_menu = parent_menu->add_submenu(child_category);
auto category_icon_path = category_icons->read_entry("16x16", category);
if (!category_icon_path.is_empty()) {
auto icon_or_error = Gfx::Bitmap::try_load_from_file(category_icon_path);
if (!icon_or_error.is_error())
category_menu.set_icon(icon_or_error.release_value());
}
app_category_menus.set(category, category_menu);
};
for (auto const& category : sorted_app_categories) {
if (category != "Settings"sv)
create_category_menu(category);
}
// Then we create and insert all the app menu items into the right place.
int app_identifier = 0;
for (auto const& app : g_apps) {
if (app.category == "Settings"sv) {
++app_identifier;
continue;
}
auto icon = app.icon.bitmap_for_size(16);
if constexpr (SYSTEM_MENU_DEBUG) {
if (icon)
dbgln("App {} has icon with size {}", app.name, icon->size());
}
auto parent_menu = app_category_menus.get(app.category).value_or(system_menu.ptr());
parent_menu->add_action(GUI::Action::create(app.name, icon, [app_identifier](auto&) {
dbgln("Activated app with ID {}", app_identifier);
auto& app = g_apps[app_identifier];
char const* argv[4] { nullptr, nullptr, nullptr, nullptr };
if (app.run_in_terminal) {
argv[0] = "/bin/Terminal";
argv[1] = "-e";
argv[2] = app.executable.characters();
} else {
argv[0] = app.executable.characters();
}
posix_spawn_file_actions_t spawn_actions;
posix_spawn_file_actions_init(&spawn_actions);
auto home_directory = Core::StandardPaths::home_directory();
posix_spawn_file_actions_addchdir(&spawn_actions, home_directory.characters());
pid_t child_pid;
if ((errno = posix_spawn(&child_pid, argv[0], &spawn_actions, nullptr, const_cast<char**>(argv), environ))) {
perror("posix_spawn");
} else {
if (disown(child_pid) < 0)
perror("disown");
}
posix_spawn_file_actions_destroy(&spawn_actions);
}));
++app_identifier;
}
system_menu->add_separator();
g_themes_group.set_exclusive(true);
g_themes_group.set_unchecking_allowed(false);
g_themes_menu = &system_menu->add_submenu("&Themes");
g_themes_menu->set_icon(Gfx::Bitmap::try_load_from_file("/res/icons/16x16/themes.png").release_value_but_fixme_should_propagate_errors());
g_themes = Gfx::list_installed_system_themes();
auto current_theme_name = GUI::ConnectionToWindowServer::the().get_system_theme();
{
int theme_identifier = 0;
for (auto& theme : g_themes) {
auto action = GUI::Action::create_checkable(theme.name, [theme_identifier](auto&) {
auto& theme = g_themes[theme_identifier];
dbgln("Theme switched to {} at path {}", theme.name, theme.path);
auto success = GUI::ConnectionToWindowServer::the().set_system_theme(theme.path, theme.name, false);
VERIFY(success);
});
if (theme.name == current_theme_name)
action->set_checked(true);
g_themes_group.add_action(action);
g_themes_menu->add_action(action);
++theme_identifier;
}
}
GUI::Application::the()->on_theme_change = [&]() {
if (g_themes_menu->is_visible())
return;
auto current_theme_name = GUI::ConnectionToWindowServer::the().get_system_theme();
for (size_t index = 0; index < g_themes.size(); ++index) {
auto* action = g_themes_menu->action_at(index);
action->set_checked(action->text() == current_theme_name);
}
};
system_menu->add_action(GUI::Action::create("&Settings", Gfx::Bitmap::try_load_from_file("/res/icons/16x16/app-settings.png").release_value_but_fixme_should_propagate_errors(), [&](auto&) {
GUI::Process::spawn_or_show_error(window_ref.get(), "/bin/Settings"sv);
}));
system_menu->add_separator();
system_menu->add_action(GUI::Action::create("&Help", Gfx::Bitmap::try_load_from_file("/res/icons/16x16/app-help.png").release_value_but_fixme_should_propagate_errors(), [&](auto&) {
GUI::Process::spawn_or_show_error(window_ref.get(), "/bin/Help"sv);
}));
system_menu->add_action(GUI::Action::create("&Run...", Gfx::Bitmap::try_load_from_file("/res/icons/16x16/app-run.png").release_value_but_fixme_should_propagate_errors(), [](auto&) {
posix_spawn_file_actions_t spawn_actions;
posix_spawn_file_actions_init(&spawn_actions);
auto home_directory = Core::StandardPaths::home_directory();
posix_spawn_file_actions_addchdir(&spawn_actions, home_directory.characters());
pid_t child_pid;
const char* argv[] = { "/bin/Run", nullptr };
if ((errno = posix_spawn(&child_pid, "/bin/Run", &spawn_actions, nullptr, const_cast<char**>(argv), environ))) {
perror("posix_spawn");
} else {
if (disown(child_pid) < 0)
perror("disown");
}
posix_spawn_file_actions_destroy(&spawn_actions);
}));
system_menu->add_separator();
system_menu->add_action(GUI::Action::create("E&xit...", Gfx::Bitmap::try_load_from_file("/res/icons/16x16/power.png").release_value_but_fixme_should_propagate_errors(), [](auto&) {
auto command = ShutdownDialog::show();
if (command.size() == 0)
return;
pid_t child_pid;
if ((errno = posix_spawn(&child_pid, command[0], nullptr, nullptr, const_cast<char**>(command.data()), environ))) {
perror("posix_spawn");
} else {
if (disown(child_pid) < 0)
perror("disown");
}
}));
return system_menu;
}