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403 lines (357 loc) · 14.8 KB
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#include "client.hpp"
#include <gtk-layer-shell.h>
#include <spdlog/spdlog.h>
#include <algorithm>
#include <iostream>
#include <utility>
#include "gtkmm/icontheme.h"
#include "ext-idle-notify-v1-client-protocol.h"
#include "idle-inhibit-unstable-v1-client-protocol.h"
#include "util/clara.hpp"
#include "util/format.hpp"
#include "util/hex_checker.hpp"
waybar::Client* waybar::Client::inst() {
static auto* c = new Client();
return c;
}
void waybar::Client::handleGlobal(void* data, struct wl_registry* registry, uint32_t name,
const char* interface, uint32_t version) {
auto* client = static_cast<Client*>(data);
if (strcmp(interface, zxdg_output_manager_v1_interface.name) == 0 &&
version >= ZXDG_OUTPUT_V1_NAME_SINCE_VERSION) {
if (client->xdg_output_manager != nullptr) {
zxdg_output_manager_v1_destroy(client->xdg_output_manager);
client->xdg_output_manager = nullptr;
}
client->xdg_output_manager = static_cast<struct zxdg_output_manager_v1*>(wl_registry_bind(
registry, name, &zxdg_output_manager_v1_interface, ZXDG_OUTPUT_V1_NAME_SINCE_VERSION));
} else if (strcmp(interface, zwp_idle_inhibit_manager_v1_interface.name) == 0) {
if (client->idle_inhibit_manager != nullptr) {
zwp_idle_inhibit_manager_v1_destroy(client->idle_inhibit_manager);
client->idle_inhibit_manager = nullptr;
}
client->idle_inhibit_manager = static_cast<struct zwp_idle_inhibit_manager_v1*>(
wl_registry_bind(registry, name, &zwp_idle_inhibit_manager_v1_interface, 1));
} else if (strcmp(interface, ext_idle_notifier_v1_interface.name) == 0) {
// Bind version 2 if available (for get_input_idle_notification), otherwise version 1
auto bind_version = std::min(version, 2u);
client->idle_notifier = static_cast<struct ext_idle_notifier_v1 *>(
wl_registry_bind(registry, name, &ext_idle_notifier_v1_interface, bind_version));
spdlog::debug("Bound ext-idle-notifier-v1 at version {}", bind_version);
}
}
void waybar::Client::handleGlobalRemove(void* data, struct wl_registry* /*registry*/,
uint32_t name) {
// Nothing here
}
void waybar::Client::handleOutput(struct waybar_output& output) {
static const struct zxdg_output_v1_listener xdgOutputListener = {
.logical_position = [](void*, struct zxdg_output_v1*, int32_t, int32_t) {},
.logical_size = &handleOutputLogicalSize,
.done = &handleOutputDone,
.name = &handleOutputName,
.description = &handleOutputDescription,
};
// owned by output->monitor; no need to destroy
auto* wl_output = gdk_wayland_monitor_get_wl_output(output.monitor->gobj());
output.xdg_output.reset(zxdg_output_manager_v1_get_xdg_output(xdg_output_manager, wl_output));
zxdg_output_v1_add_listener(output.xdg_output.get(), &xdgOutputListener, &output);
}
struct waybar::waybar_output& waybar::Client::getOutput(void* addr) {
auto it = std::find_if(outputs_.begin(), outputs_.end(),
[&addr](const auto& output) { return &output == addr; });
if (it == outputs_.end()) {
throw std::runtime_error("Unable to find valid output");
}
return *it;
}
std::vector<Json::Value> waybar::Client::getOutputConfigs(struct waybar_output& output) {
return config.getOutputConfigs(output.name, output.identifier, output.width, output.height);
}
void waybar::Client::handleOutputLogicalSize(void* data, struct zxdg_output_v1* object,
int32_t width, int32_t height) {
auto client = waybar::Client::inst();
try {
auto& output = client->getOutput(data);
output.width = width;
output.height = height;
} catch (const std::exception& e) {
std::cerr << e.what() << std::endl;
}
}
void waybar::Client::handleOutputDone(void* data, struct zxdg_output_v1* /*xdg_output*/) {
auto* client = waybar::Client::inst();
try {
auto& output = client->getOutput(data);
/**
* Multiple .done events may arrive in batch. In this case libwayland would queue
* xdg_output.destroy and dispatch all pending events, triggering this callback several times
* for the same output. .done events can also arrive after that for a scale or position changes.
* We wouldn't want to draw a duplicate bar for each such event either.
*
* All the properties we care about are immutable so it's safe to delete the xdg_output object
* on the first event and use the ptr value to check that the callback was already invoked.
*/
if (output.xdg_output) {
output.xdg_output.reset();
spdlog::debug("Output detection done: {} ({})", output.name, output.identifier);
client->pending_outputs_.push_back(&output);
if (!client->bars_scheduled_) {
client->bars_scheduled_ = true;
Glib::signal_idle().connect_once([client]() {
client->createBarsBatch();
}, Glib::PRIORITY_HIGH_IDLE);
}
}
} catch (const std::exception& e) {
spdlog::warn("caught exception in zxdg_output_v1_listener::done: {}", e.what());
}
}
void waybar::Client::createBarsBatch() {
pending_outputs_.remove_if([this](auto* output) { return std::none_of(outputs_.begin(), outputs_.end(), [&output](const auto& o) { return &o == output; }); });
for (auto* output : pending_outputs_) {
try {
auto configs = getOutputConfigs(*output);
if (!configs.empty()) {
for (const auto& config : configs) {
bars.emplace_back(std::make_unique<Bar>(output, config));
}
}
} catch (const std::exception& e) {
spdlog::warn("Error creating bar: {}", e.what());
}
}
pending_outputs_.clear();
bars_scheduled_ = false;
}
void waybar::Client::handleOutputName(void* data, struct zxdg_output_v1* /*xdg_output*/,
const char* name) {
auto* client = waybar::Client::inst();
try {
auto& output = client->getOutput(data);
output.name = name;
} catch (const std::exception& e) {
spdlog::warn("caught exception in zxdg_output_v1_listener::name: {}", e.what());
}
}
void waybar::Client::handleOutputDescription(void* data, struct zxdg_output_v1* /*xdg_output*/,
const char* description) {
auto* client = waybar::Client::inst();
try {
auto& output = client->getOutput(data);
// Description format: "identifier (name)"
auto s = std::string(description);
auto pos = s.find(" (");
output.identifier = pos != std::string::npos ? s.substr(0, pos) : s;
} catch (const std::exception& e) {
spdlog::warn("caught exception in zxdg_output_v1_listener::description: {}", e.what());
}
8000
}
void waybar::Client::handleMonitorAdded(Glib::RefPtr<Gdk::Monitor> monitor) {
auto& output = outputs_.emplace_back();
output.monitor = std::move(monitor);
handleOutput(output);
}
void waybar::Client::handleMonitorRemoved(Glib::RefPtr<Gdk::Monitor> monitor) {
spdlog::debug("Output removed: {} {}", monitor->get_manufacturer().c_str(),
monitor->get_model().c_str());
/* This event can be triggered from wl_display_roundtrip called by GTK or our code.
* Defer destruction of bars for the output to the next iteration of the event loop to avoid
* deleting objects referenced by currently executed code.
*/
Glib::signal_idle().connect_once(
sigc::bind(sigc::mem_fun(*this, &Client::handleDeferredMonitorRemoval), monitor),
Glib::PRIORITY_HIGH_IDLE);
}
void waybar::Client::handleDeferredMonitorRemoval(Glib::RefPtr<Gdk::Monitor> monitor) {
for (auto it = bars.begin(); it != bars.end();) {
if ((*it)->output->monitor == monitor) {
auto output_name = (*it)->output->name;
(*it)->window.hide();
gtk_app->remove_window((*it)->window);
it = bars.erase(it);
spdlog::info("Bar removed from output: {}", output_name);
} else {
++it;
}
}
outputs_.remove_if([&monitor](const auto& output) { return output.monitor == monitor; });
}
const std::string waybar::Client::getStyle(const std::string& style,
std::optional<Appearance> appearance = std::nullopt) {
auto gtk_settings = Gtk::Settings::get_default();
std::optional<std::string> css_file;
if (style.empty()) {
std::vector<std::string> search_files;
switch (appearance.value_or(portal ? portal->getAppearance() : waybar::Appearance::UNKNOWN)) {
case waybar::Appearance::LIGHT:
search_files.emplace_back("style-light.css");
gtk_settings->property_gtk_application_prefer_dark_theme() = false;
break;
case waybar::Appearance::DARK:
search_files.emplace_back("style-dark.css");
gtk_settings->property_gtk_application_prefer_dark_theme() = true;
break;
case waybar::Appearance::UNKNOWN:
break;
}
search_files.emplace_back("style.css");
css_file = Config::findConfigPath(search_files);
} else {
css_file = style;
}
if (!css_file) {
throw std::runtime_error("Missing required resource files");
}
spdlog::info("Using CSS file {}", css_file.value());
return css_file.value();
};
auto waybar::Client::setupCss(const std::string& css_file) -> void {
auto screen = Gdk::Screen::get_default();
if (!screen) {
throw std::runtime_error("No default screen");
}
if (css_provider_) {
Gtk::StyleContext::remove_provider_for_screen(screen, css_provider_);
css_provider_.reset();
}
css_provider_ = Gtk::CssProvider::create();
auto [modified_css, was_transformed] = transform_8bit_to_hex(css_file);
if (was_transformed) {
css_provider_->load_from_data(modified_css);
} else {
if (!css_provider_->load_from_path(css_file)) {
css_provider_.reset();
throw std::runtime_error("Can't open style file");
}
}
Gtk::StyleContext::add_provider_for_screen(screen, css_provider_,
GTK_STYLE_PROVIDER_PRIORITY_USER);
}
void waybar::Client::bindInterfaces() {
registry = wl_display_get_registry(wl_display);
static const struct wl_registry_listener registry_listener = {
.global = handleGlobal,
.global_remove = handleGlobalRemove,
};
wl_registry_add_listener(registry, ®istry_listener, this);
wl_display_roundtrip(wl_display);
if (gtk_layer_is_supported() == 0) {
throw std::runtime_error("The Wayland compositor does not support wlr-layer-shell protocol");
}
if (xdg_output_manager == nullptr) {
throw std::runtime_error("Failed to acquire required resources.");
}
// Disconnect previous signal handlers to prevent duplicate handlers on reload
monitor_added_connection_.disconnect();
monitor_removed_connection_.disconnect();
// Clear stale outputs from previous run
outputs_.clear();
// Also drop any batch state that was left pending from the previous run. On
// reload the GApplication is swapped but the default main context (and its
// queued PRIORITY_HIGH_IDLE createBarsBatch source) survives; pending_outputs_
// would then hold dangling waybar_output* into the just-cleared outputs_ list,
// which createBarsBatch's address comparison can mis-match if the freed slot is
// reused. Reset so the next run schedules its batch from a clean state (#4129).
pending_outputs_.clear();
bars_scheduled_ = false;
// add existing outputs and subscribe to updates
for (auto i = 0; i < gdk_display->get_n_monitors(); ++i) {
auto monitor = gdk_display->get_monitor(i);
handleMonitorAdded(monitor);
}
monitor_added_connection_ = gdk_display->signal_monitor_added().connect(
sigc::mem_fun(*this, &Client::handleMonitorAdded));
monitor_removed_connection_ = gdk_display->signal_monitor_removed().connect(
sigc::mem_fun(*this, &Client::handleMonitorRemoved));
}
int waybar::Client::main(int argc, char* argv[]) {
bool show_help = false;
bool show_version = false;
std::string config_opt;
std::string style_opt;
std::string log_level;
auto cli = clara::detail::Help(show_help) |
clara::detail::Opt(show_version)["-v"]["--version"]("Show version") |
clara::detail::Opt(config_opt, "config")["-c"]["--config"]("Config path") |
clara::detail::Opt(style_opt, "style")["-s"]["--style"]("Style path") |
clara::detail::Opt(
log_level,
"trace|debug|info|warning|error|critical|off")["-l"]["--log-level"]("Log level") |
clara::detail::Opt(bar_id, "id")["-b"]["--bar"]("Bar id");
auto res = cli.parse(clara::detail::Args(argc, argv));
if (!res) {
spdlog::error("Error in command line: {}", res.errorMessage());
return 1;
}
if (show_help) {
std::cout << cli << '\n';
return 0;
}
if (show_version) {
std::cout << "Waybar v" << VERSION << '\n';
return 0;
}
if (!log_level.empty()) {
spdlog::set_level(spdlog::level::from_str(log_level));
}
gtk_app = Gtk::Application::create(argc, argv, "fr.arouillard.waybar",
Gio::APPLICATION_HANDLES_COMMAND_LINE);
// Initialize Waybars GTK resources with our custom icons
auto theme = Gtk::IconTheme::get_default();
theme->add_resource_path("/fr/arouillard/waybar/icons");
gdk_display = Gdk::Display::get_default();
if (!gdk_display) {
throw std::runtime_error("Can't find display");
}
if (!GDK_IS_WAYLAND_DISPLAY(gdk_display->gobj())) {
throw std::runtime_error("Bar need to run under Wayland");
}
wl_display = gdk_wayland_display_get_wl_display(gdk_display->gobj());
config.load(config_opt);
if (!portal) {
try {
portal = std::make_unique<waybar::Portal>();
} catch (const Glib::Error& e) {
spdlog::warn(
"Failed to connect to the desktop portal, light/dark theme detection disabled: {}",
std::string(e.what()));
} catch (...) {
spdlog::warn("Failed to connect to the desktop portal, light/dark theme detection disabled");
}
}
m_cssFile = getStyle(style_opt);
setupCss(m_cssFile);
m_cssReloadHelper = std::make_unique<CssReloadHelper>(m_cssFile, [&](const std::string& css_file) { setupCss(css_file); });
if (portal) {
portal->signal_appearance_changed().connect([&](waybar::Appearance appearance) {
auto css_file = getStyle(style_opt, appearance);
m_cssReloadHelper->changeCssFile(css_file);
setupCss(css_file);
});
}
auto m_config = config.getConfig();
if (m_config.isObject() && m_config["reload_style_on_change"].asBool()) {
m_cssReloadHelper->monitorChanges();
} else if (m_config.isArray()) {
for (const auto& conf : m_config) {
if (conf["reload_style_on_change"].asBool()) {
m_cssReloadHelper->monitorChanges();
break;
}
}
}
bindInterfaces();
gtk_app->hold();
gtk_app->run();
m_cssReloadHelper.reset(); // stop watching css file
bars.clear();
return 0;
}
void waybar::Client::reset() {
gtk_app->quit();
// delete signal handler for css changes
if (portal) {
portal->signal_appearance_changed().clear();
}
}