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refactor(IPC): use sigc signal

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This commit is contained in:
Alex 2019-04-19 11:09:06 +02:00
parent 4c8f4f82dc
commit bb1cf7570e
9 changed files with 140 additions and 91 deletions
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10
include/modules/sway/ipc/client.hpp
View File

@ -1,5 +1,6 @@
#pragma once
#include <sigc++/sigc++.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
@ -20,9 +21,12 @@ class Ipc {
std::string payload;
};
struct ipc_response sendCmd(uint32_t type, const std::string &payload = "") const;
void subscribe(const std::string &payload) const;
struct ipc_response handleEvent() const;
sigc::signal<void, const struct ipc_response> signal_event;
sigc::signal<void, const struct ipc_response> signal_cmd;
void sendCmd(uint32_t type, const std::string &payload = "") const;
void subscribe(const std::string &payload) const;
void handleEvent() const;
protected:
static inline const std::string ipc_magic_ = "i3-ipc";

1
include/modules/sway/mode.hpp
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@ -17,6 +17,7 @@ class Mode : public ALabel {
auto update() -> void;
private:
void onEvent(const struct Ipc::ipc_response);
void worker();
const Bar& bar_;

2
include/modules/sway/window.hpp
View File

@ -18,6 +18,8 @@ class Window : public ALabel {
auto update() -> void;
private:
void onEvent(const struct Ipc::ipc_response);
void onCmd(const struct Ipc::ipc_response);
void worker();
std::tuple<int, std::string> getFocusedNode(Json::Value nodes);
void getFocusedWindow();

1
include/modules/sway/workspaces.hpp
View File

@ -20,6 +20,7 @@ class Workspaces : public IModule {
operator Gtk::Widget&();
private:
void onCmd(const struct Ipc::ipc_response);
void worker();
void addWorkspace(const Json::Value&);
void onButtonReady(const Json::Value&, Gtk::Button&);

4
src/modules/network.cpp
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@ -114,9 +114,9 @@ void waybar::modules::Network::worker() {
}
thread_timer_.sleep_for(interval_);
};
struct epoll_event events[EPOLL_MAX] = {{0}};
std::array<struct epoll_event, EPOLL_MAX> events;
thread_ = [this, &events] {
int ec = epoll_wait(efd_, events, EPOLL_MAX, -1);
int ec = epoll_wait(efd_, events.data(), EPOLL_MAX, -1);
if (ec > 0) {
for (auto i = 0; i < ec; i++) {
if (events[i].data.fd == nl_socket_get_fd(info_sock_)) {

61
src/modules/sway/ipc/client.cpp
View File

@ -1,21 +1,29 @@
#include "modules/sway/ipc/client.hpp"
#include <fcntl.h>
waybar::modules::sway::Ipc::Ipc() {
namespace waybar::modules::sway {
Ipc::Ipc() {
const std::string& socketPath = getSocketPath();
fd_ = open(socketPath);
fd_event_ = open(socketPath);
}
waybar::modules::sway::Ipc::~Ipc() {
Ipc::~Ipc() {
// To fail the IPC header
write(fd_, "close-sway-ipc", 14);
write(fd_event_, "close-sway-ipc", 14);
close(fd_);
close(fd_event_);
if (fd_ > 0) {
close(fd_);
fd_ = -1;
}
if (fd_event_ > 0) {
close(fd_event_);
fd_event_ = -1;
}
}
const std::string waybar::modules::sway::Ipc::getSocketPath() const {
const std::string Ipc::getSocketPath() const {
const char* env = getenv("SWAYSOCK");
if (env != nullptr) {
return std::string(env);
@ -33,6 +41,9 @@ const std::string waybar::modules::sway::Ipc::getSocketPath() const {
}
pclose(in);
str = str_buf;
if (str.empty()) {
throw std::runtime_error("Socket path is empty");
}
}
if (str.back() == '\n') {
str.pop_back();
@ -40,12 +51,14 @@ const std::string waybar::modules::sway::Ipc::getSocketPath() const {
return str;
}
int waybar::modules::sway::Ipc::open(const std::string& socketPath) const {
struct sockaddr_un addr = {0};
int fd = -1;
if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
int Ipc::open(const std::string& socketPath) const {
int32_t fd = socket(AF_UNIX, SOCK_STREAM, 0);
if (fd == -1) {
throw std::runtime_error("Unable to open Unix socket");
}
(void)fcntl(fd, F_SETFD, FD_CLOEXEC);
struct sockaddr_un addr;
memset(&addr, 0, sizeof(struct sockaddr_un));
addr.sun_family = AF_UNIX;
strncpy(addr.sun_path, socketPath.c_str(), sizeof(addr.sun_path) - 1);
addr.sun_path[sizeof(addr.sun_path) - 1] = 0;
@ -56,7 +69,7 @@ int waybar::modules::sway::Ipc::open(const std::string& socketPath) const {
return fd;
}
struct waybar::modules::sway::Ipc::ipc_response waybar::modules::sway::Ipc::recv(int fd) const {
struct Ipc::ipc_response Ipc::recv(int fd) const {
std::string header;
header.resize(ipc_header_size_);
auto data32 = reinterpret_cast<uint32_t*>(header.data() + ipc_magic_.size());
@ -65,6 +78,10 @@ struct waybar::modules::sway::Ipc::ipc_response waybar::modules::sway::Ipc::recv
while (total < ipc_header_size_) {
auto res = ::recv(fd, header.data() + total, ipc_header_size_ - total, 0);
if (res <= 0) {
if (res <= 0 && (fd_event_ == -1 || fd_ == -1)) {
// IPC is closed so just return empty response
return {0, 0, ""};
}
throw std::runtime_error("Unable to receive IPC header");
}
total += res;
@ -88,8 +105,7 @@ struct waybar::modules::sway::Ipc::ipc_response waybar::modules::sway::Ipc::recv
return {data32[0], data32[1], &payload.front()};
}
struct waybar::modules::sway::Ipc::ipc_response waybar::modules::sway::Ipc::send(
int fd, uint32_t type, const std::string& payload) const {
struct Ipc::ipc_response Ipc::send(int fd, uint32_t type, const std::string& payload) const {
std::string header;
header.resize(ipc_header_size_);
auto data32 = reinterpret_cast<uint32_t*>(header.data() + ipc_magic_.size());
@ -103,21 +119,24 @@ struct waybar::modules::sway::Ipc::ipc_response waybar::modules::sway::Ipc::send
if (::send(fd, payload.c_str(), payload.size(), 0) == -1) {
throw std::runtime_error("Unable to send IPC payload");
}
return recv(fd);
return Ipc::recv(fd);
}
struct waybar::modules::sway::Ipc::ipc_response waybar::modules::sway::Ipc::sendCmd(
uint32_t type, const std::string& payload) const {
return send(fd_, type, payload);
void Ipc::sendCmd(uint32_t type, const std::string& payload) const {
const auto res = Ipc::send(fd_, type, payload);
signal_cmd.emit(res);
}
void waybar::modules::sway::Ipc::subscribe(const std::string& payload) const {
auto res = send(fd_event_, IPC_SUBSCRIBE, payload);
void Ipc::subscribe(const std::string& payload) const {
auto res = Ipc::send(fd_event_, IPC_SUBSCRIBE, payload);
if (res.payload != "{\"success\": true}") {
throw std::runtime_error("Unable to subscribe ipc event");
}
}
struct waybar::modules::sway::Ipc::ipc_response waybar::modules::sway::Ipc::handleEvent() const {
return recv(fd_event_);
void Ipc::handleEvent() const {
const auto res = Ipc::recv(fd_event_);
signal_event.emit(res);
}
} // namespace waybar::modules::sway

32
src/modules/sway/mode.cpp
View File

@ -1,35 +1,41 @@
#include "modules/sway/mode.hpp"
waybar::modules::sway::Mode::Mode(const std::string& id, const Bar& bar, const Json::Value& config)
namespace waybar::modules::sway {
Mode::Mode(const std::string& id, const Bar& bar, const Json::Value& config)
: ALabel(config, "{}"), bar_(bar) {
label_.set_name("mode");
if (!id.empty()) {
label_.get_style_context()->add_class(id);
}
ipc_.subscribe("[ \"mode\" ]");
ipc_.signal_event.connect(sigc::mem_fun(*this, &Mode::onEvent));
// Launch worker
worker();
dp.emit();
}
void waybar::modules::sway::Mode::worker() {
void Mode::onEvent(const struct Ipc::ipc_response res) {
auto parsed = parser_.parse(res.payload);
if (parsed["change"] != "default") {
mode_ = parsed["change"].asString();
} else {
mode_.clear();
}
dp.emit();
}
void Mode::worker() {
thread_ = [this] {
try {
auto res = ipc_.handleEvent();
auto parsed = parser_.parse(res.payload);
if (parsed["change"] != "default") {
mode_ = parsed["change"].asString();
} else {
mode_.clear();
}
dp.emit();
ipc_.handleEvent();
} catch (const std::exception& e) {
std::cerr << "Mode: " << e.what() << std::endl;
}
};
}
auto waybar::modules::sway::Mode::update() -> void {
auto Mode::update() -> void {
if (mode_.empty()) {
event_box_.hide();
} else {
@ -39,4 +45,6 @@ auto waybar::modules::sway::Mode::update() -> void {
}
event_box_.show();
}
}
}
} // namespace waybar::modules::sway

69
src/modules/sway/window.cpp
View File

@ -1,7 +1,8 @@
#include "modules/sway/window.hpp"
waybar::modules::sway::Window::Window(const std::string& id, const Bar& bar,
const Json::Value& config)
namespace waybar::modules::sway {
Window::Window(const std::string& id, const Bar& bar, const Json::Value& config)
: ALabel(config, "{}"), bar_(bar), windowId_(-1) {
label_.set_name("window");
if (!id.empty()) {
@ -12,45 +13,58 @@ waybar::modules::sway::Window::Window(const std::string& id, const Bar& bar,
label_.set_ellipsize(Pango::EllipsizeMode::ELLIPSIZE_END);
}
ipc_.subscribe("[\"window\",\"workspace\"]");
ipc_.signal_event.connect(sigc::mem_fun(*this, &Window::onEvent));
ipc_.signal_cmd.connect(sigc::mem_fun(*this, &Window::onCmd));
getFocusedWindow();
// Launch worker
worker();
}
void waybar::modules::sway::Window::worker() {
void Window::onEvent(const struct Ipc::ipc_response res) {
auto parsed = parser_.parse(res.payload);
// Check for waybar prevents flicker when hovering window module
if ((parsed["change"] == "focus" || parsed["change"] == "title") &&
parsed["container"]["focused"].asBool() &&
parsed["container"]["name"].asString() != "waybar") {
window_ = Glib::Markup::escape_text(parsed["container"]["name"].asString());
windowId_ = parsed["container"]["id"].asInt();
dp.emit();
} else if ((parsed["change"] == "close" && parsed["container"]["focused"].asBool() &&
windowId_ == parsed["container"]["id"].asInt()) ||
(parsed["change"] == "focus" && parsed["current"]["focus"].isArray() &&
parsed["current"]["focus"].empty())) {
window_.clear();
windowId_ = -1;
dp.emit();
}
}
void Window::onCmd(const struct Ipc::ipc_response res) {
auto parsed = parser_.parse(res.payload);
auto [id, name] = getFocusedNode(parsed["nodes"]);
windowId_ = id;
window_ = name;
dp.emit();
}
void Window::worker() {
thread_ = [this] {
try {
auto res = ipc_.handleEvent();
auto parsed = parser_.parse(res.payload);
// Check for waybar prevents flicker when hovering window module
if ((parsed["change"] == "focus" || parsed["change"] == "title") &&
parsed["container"]["focused"].asBool() &&
parsed["container"]["name"].asString() != "waybar") {
window_ = Glib::Markup::escape_text(parsed["container"]["name"].asString());
windowId_ = parsed["container"]["id"].asInt();
dp.emit();
} else if ((parsed["change"] == "close" && parsed["container"]["focused"].asBool() &&
windowId_ == parsed["container"]["id"].asInt()) ||
(parsed["change"] == "focus" && parsed["current"]["focus"].isArray() &&
parsed["current"]["focus"].empty())) {
window_.clear();
windowId_ = -1;
dp.emit();
}
ipc_.handleEvent();
} catch (const std::exception& e) {
std::cerr << "Window: " << e.what() << std::endl;
}
};
}
auto waybar::modules::sway::Window::update() -> void {
auto Window::update() -> void {
label_.set_markup(fmt::format(format_, window_));
if (tooltipEnabled()) {
label_.set_tooltip_text(window_);
}
}
std::tuple<int, std::string> waybar::modules::sway::Window::getFocusedNode(Json::Value nodes) {
std::tuple<int, std::string> Window::getFocusedNode(Json::Value nodes) {
for (auto const& node : nodes) {
if (node["focused"].asBool() && node["type"] == "con") {
return {node["id"].asInt(), node["name"].asString()};
@ -63,15 +77,12 @@ std::tuple<int, std::string> waybar::modules::sway::Window::getFocusedNode(Json:
return {-1, std::string()};
}
void waybar::modules::sway::Window::getFocusedWindow() {
void Window::getFocusedWindow() {
try {
auto res = ipc_.sendCmd(IPC_GET_TREE);
auto parsed = parser_.parse(res.payload);
auto [id, name] = getFocusedNode(parsed["nodes"]);
windowId_ = id;
window_ = name;
Glib::signal_idle().connect_once(sigc::mem_fun(*this, &Window::update));
ipc_.sendCmd(IPC_GET_TREE);
} catch (const std::exception& e) {
std::cerr << e.what() << std::endl;
}
}
} // namespace waybar::modules::sway

51
src/modules/sway/workspaces.cpp
View File

@ -1,7 +1,8 @@
#include "modules/sway/workspaces.hpp"
waybar::modules::sway::Workspaces::Workspaces(const std::string &id, const Bar &bar,
const Json::Value &config)
namespace waybar::modules::sway {
Workspaces::Workspaces(const std::string &id, const Bar &bar, const Json::Value &config)
: bar_(bar),
config_(config),
box_(bar.vertical ? Gtk::ORIENTATION_VERTICAL : Gtk::ORIENTATION_HORIZONTAL, 0),
@ -11,31 +12,35 @@ waybar::modules::sway::Workspaces::Workspaces(const std::string &id, const Bar &
box_.get_style_context()->add_class(id);
}
ipc_.subscribe("[ \"workspace\" ]");
ipc_.signal_cmd.connect(sigc::mem_fun(*this, &Workspaces::onCmd));
// Launch worker
worker();
}
void waybar::modules::sway::Workspaces::worker() {
void Workspaces::onCmd(const struct Ipc::ipc_response res) {
if (thread_.isRunning()) {
std::lock_guard<std::mutex> lock(mutex_);
workspaces_ = parser_.parse(res.payload);
dp.emit();
}
}
void Workspaces::worker() {
thread_ = [this] {
try {
if (!workspaces_.empty()) {
ipc_.handleEvent();
}
{
std::lock_guard<std::mutex> lock(mutex_);
auto res = ipc_.sendCmd(IPC_GET_WORKSPACES);
if (thread_.isRunning()) {
workspaces_ = parser_.parse(res.payload);
}
if (thread_.isRunning()) {
ipc_.sendCmd(IPC_GET_WORKSPACES);
}
dp.emit();
} catch (const std::exception &e) {
std::cerr << "Workspaces: " << e.what() << std::endl;
}
};
}
auto waybar::modules::sway::Workspaces::update() -> void {
auto Workspaces::update() -> void {
bool needReorder = false;
std::lock_guard<std::mutex> lock(mutex_);
for (auto it = buttons_.begin(); it != buttons_.end();) {
@ -100,7 +105,7 @@ auto waybar::modules::sway::Workspaces::update() -> void {
}
}
void waybar::modules::sway::Workspaces::addWorkspace(const Json::Value &node) {
void Workspaces::addWorkspace(const Json::Value &node) {
auto icon = getIcon(node["name"].asString(), node);
auto format = config_["format"].isString()
? fmt::format(config_["format"].asString(),
@ -117,8 +122,7 @@ void waybar::modules::sway::Workspaces::addWorkspace(const Json::Value &node) {
button.set_relief(Gtk::RELIEF_NONE);
button.signal_clicked().connect([this, pair] {
try {
std::lock_guard<std::mutex> lock(mutex_);
auto cmd = fmt::format("workspace \"{}\"", pair.first->first);
auto cmd = fmt::format("workspace \"{}\"", pair.first->first);
ipc_.sendCmd(IPC_COMMAND, cmd);
} catch (const std::exception &e) {
std::cerr << e.what() << std::endl;
@ -142,8 +146,7 @@ void waybar::modules::sway::Workspaces::addWorkspace(const Json::Value &node) {
onButtonReady(node, button);
}
std::string waybar::modules::sway::Workspaces::getIcon(const std::string &name,
const Json::Value &node) {
std::string Workspaces::getIcon(const std::string &name, const Json::Value &node) {
std::vector<std::string> keys = {name, "urgent", "focused", "visible", "default"};
for (auto const &key : keys) {
if (key == "focused" || key == "visible" || key == "urgent") {
@ -157,7 +160,7 @@ std::string waybar::modules::sway::Workspaces::getIcon(const std::string &name,
return name;
}
bool waybar::modules::sway::Workspaces::handleScroll(GdkEventScroll *e) {
bool Workspaces::handleScroll(GdkEventScroll *e) {
// Avoid concurrent scroll event
if (scrolling_) {
return false;
@ -199,8 +202,7 @@ bool waybar::modules::sway::Workspaces::handleScroll(GdkEventScroll *e) {
return true;
}
const std::string waybar::modules::sway::Workspaces::getCycleWorkspace(uint8_t focused_workspace,
bool prev) const {
const std::string Workspaces::getCycleWorkspace(uint8_t focused_workspace, bool prev) const {
auto inc = prev ? -1 : 1;
int size = workspaces_.size();
uint8_t idx = 0;
@ -225,7 +227,7 @@ const std::string waybar::modules::sway::Workspaces::getCycleWorkspace(uint8_t f
return "";
}
uint16_t waybar::modules::sway::Workspaces::getWorkspaceIndex(const std::string &name) const {
uint16_t Workspaces::getWorkspaceIndex(const std::string &name) const {
uint16_t idx = 0;
for (const auto &workspace : workspaces_) {
if (workspace["name"].asString() == name) {
@ -239,7 +241,7 @@ uint16_t waybar::modules::sway::Workspaces::getWorkspaceIndex(const std::string
return workspaces_.size();
}
std::string waybar::modules::sway::Workspaces::trimWorkspaceName(std::string name) {
std::string Workspaces::trimWorkspaceName(std::string name) {
std::size_t found = name.find(":");
if (found != std::string::npos) {
return name.substr(found + 1);
@ -247,8 +249,7 @@ std::string waybar::modules::sway::Workspaces::trimWorkspaceName(std::string nam
return name;
}
void waybar::modules::sway::Workspaces::onButtonReady(const Json::Value &node,
Gtk::Button & button) {
void Workspaces::onButtonReady(const Json::Value &node, Gtk::Button &button) {
if (config_["current-only"].asBool()) {
if (node["focused"].asBool()) {
button.show();
@ -260,4 +261,6 @@ void waybar::modules::sway::Workspaces::onButtonReady(const Json::Value &node,
}
}
waybar::modules::sway::Workspaces::operator Gtk::Widget &() { return box_; }
Workspaces::operator Gtk::Widget &() { return box_; }
} // namespace waybar::modules::sway