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refactor(Workspaces, IPC): no more mutex in the workspaces modules, moved to the IPC client for a proper handling

This commit is contained in:
Alex 2019-04-19 16:48:02 +02:00
parent e77c155ede
commit cbb6f2a307
4 changed files with 131 additions and 174 deletions
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17
include/modules/sway/ipc/client.hpp
View File

@ -6,6 +6,7 @@
#include <unistd.h>
#include <cstring>
#include <iostream>
#include <mutex>
#include "ipc.hpp"
namespace waybar::modules::sway {
@ -24,9 +25,9 @@ class Ipc {
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;
void sendCmd(uint32_t type, const std::string &payload = "");
void subscribe(const std::string &payload);
void handleEvent();
protected:
static inline const std::string ipc_magic_ = "i3-ipc";
@ -34,11 +35,13 @@ class Ipc {
const std::string getSocketPath() const;
int open(const std::string &) const;
struct ipc_response send(int fd, uint32_t type, const std::string &payload = "") const;
struct ipc_response recv(int fd) const;
struct ipc_response send(int fd, uint32_t type, const std::string &payload = "");
struct ipc_response recv(int fd);
int fd_;
int fd_event_;
int fd_;
int fd_event_;
std::mutex mutex_;
std::mutex mutex_event_;
};
} // namespace waybar::modules::sway

13
include/modules/sway/workspaces.hpp
View File

@ -21,25 +21,24 @@ class Workspaces : public IModule {
private:
void onCmd(const struct Ipc::ipc_response);
void onEvent(const struct Ipc::ipc_response);
void worker();
void addWorkspace(const Json::Value&);
bool filterButtons();
Gtk::Button& addButton(const Json::Value&);
void onButtonReady(const Json::Value&, Gtk::Button&);
std::string getIcon(const std::string&, const Json::Value&);
bool handleScroll(GdkEventScroll*);
const std::string getCycleWorkspace(const Json::Value& workspaces, uint8_t current,
bool prev) const;
uint16_t getWorkspaceIndex(const Json::Value& workspaces, const std::string& name) const;
const std::string getCycleWorkspace(std::vector<Json::Value>::iterator, bool prev) const;
uint16_t getWorkspaceIndex(const std::string& name) const;
std::string trimWorkspaceName(std::string);
const Json::Value getWorkspaces();
const Bar& bar_;
const Json::Value& config_;
Json::Value workspaces_;
std::vector<Json::Value> workspaces_;
waybar::util::SleeperThread thread_;
Gtk::Box box_;
util::JsonParser parser_;
Ipc ipc_;
std::mutex mutex_;
bool scrolling_;
std::unordered_map<std::string, Gtk::Button> buttons_;
};

14
src/modules/sway/ipc/client.cpp
View File

@ -69,7 +69,7 @@ int Ipc::open(const std::string& socketPath) const {
return fd;
}
struct Ipc::ipc_response Ipc::recv(int fd) const {
struct Ipc::ipc_response Ipc::recv(int fd) {
std::string header;
header.resize(ipc_header_size_);
auto data32 = reinterpret_cast<uint32_t*>(header.data() + ipc_magic_.size());
@ -86,7 +86,6 @@ struct Ipc::ipc_response Ipc::recv(int fd) const {
}
total += res;
}
auto magic = std::string(header.data(), header.data() + ipc_magic_.size());
if (magic != ipc_magic_) {
throw std::runtime_error("Invalid IPC magic");
@ -105,7 +104,7 @@ struct Ipc::ipc_response Ipc::recv(int fd) const {
return {data32[0], data32[1], &payload.front()};
}
struct Ipc::ipc_response 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) {
std::string header;
header.resize(ipc_header_size_);
auto data32 = reinterpret_cast<uint32_t*>(header.data() + ipc_magic_.size());
@ -122,19 +121,22 @@ struct Ipc::ipc_response Ipc::send(int fd, uint32_t type, const std::string& pay
return Ipc::recv(fd);
}
void Ipc::sendCmd(uint32_t type, const std::string& payload) const {
void Ipc::sendCmd(uint32_t type, const std::string& payload) {
std::lock_guard<std::mutex> lock(mutex_);
const auto res = Ipc::send(fd_, type, payload);
signal_cmd.emit(res);
}
void Ipc::subscribe(const std::string& payload) const {
void Ipc::subscribe(const std::string& payload) {
std::lock_guard<std::mutex> lock(mutex_event_);
auto res = Ipc::send(fd_event_, IPC_SUBSCRIBE, payload);
if (res.payload != "{\"success\": true}") {
throw std::runtime_error("Unable to subscribe ipc event");
}
}
void Ipc::handleEvent() const {
void Ipc::handleEvent() {
std::lock_guard<std::mutex> lock(mutex_event_);
const auto res = Ipc::recv(fd_event_);
signal_event.emit(res);
}

261
src/modules/sway/workspaces.cpp
View File

@ -12,47 +12,52 @@ Workspaces::Workspaces(const std::string &id, const Bar &bar, const Json::Value
box_.get_style_context()->add_class(id);
}
ipc_.subscribe("[ \"workspace\" ]");
ipc_.signal_event.connect(sigc::mem_fun(*this, &Workspaces::onEvent));
ipc_.signal_cmd.connect(sigc::mem_fun(*this, &Workspaces::onCmd));
ipc_.sendCmd(IPC_GET_WORKSPACES);
// Launch worker
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::onEvent(const struct Ipc::ipc_response res) { ipc_.sendCmd(IPC_GET_WORKSPACES); }
const Json::Value Workspaces::getWorkspaces() {
std::lock_guard<std::mutex> lock(mutex_);
return workspaces_;
void Workspaces::onCmd(const struct Ipc::ipc_response res) {
if (res.type == IPC_GET_WORKSPACES) {
auto workspaces = parser_.parse(res.payload);
workspaces_.clear();
std::copy_if(workspaces.begin(),
workspaces.end(),
std::back_inserter(workspaces_),
[&](const auto &workspace) {
return !config_["all-outputs"].asBool()
? workspace["output"].asString() == bar_.output->name
: true;
});
dp.emit();
} else {
if (scrolling_) {
scrolling_ = false;
}
}
}
void Workspaces::worker() {
thread_ = [this] {
try {
if (!getWorkspaces().empty()) {
ipc_.handleEvent();
}
if (thread_.isRunning()) {
ipc_.sendCmd(IPC_GET_WORKSPACES);
}
ipc_.handleEvent();
} catch (const std::exception &e) {
std::cerr << "Workspaces: " << e.what() << std::endl;
}
};
}
auto Workspaces::update() -> void {
bool Workspaces::filterButtons() {
bool needReorder = false;
auto workspaces = getWorkspaces();
for (auto it = buttons_.begin(); it != buttons_.end();) {
auto ws = std::find_if(workspaces.begin(), workspaces.end(), [it](auto node) -> bool {
auto ws = std::find_if(workspaces_.begin(), workspaces_.end(), [it](const auto &node) {
return node["name"].asString() == it->first;
});
if (ws == workspaces.end() ||
if (ws == workspaces_.end() ||
(!config_["all-outputs"].asBool() && (*ws)["output"].asString() != bar_.output->name)) {
it = buttons_.erase(it);
needReorder = true;
@ -60,75 +65,60 @@ auto Workspaces::update() -> void {
++it;
}
}
for (auto const &node : workspaces) {
if (!config_["all-outputs"].asBool() && bar_.output->name != node["output"].asString()) {
continue;
}
auto it = buttons_.find(node["name"].asString());
if (it == buttons_.end()) {
addWorkspace(node);
return needReorder;
}
auto Workspaces::update() -> void {
bool needReorder = filterButtons();
for (auto it = workspaces_.begin(); it != workspaces_.end(); ++it) {
auto bit = buttons_.find((*it)["name"].asString());
if (bit == buttons_.end()) {
needReorder = true;
} else {
auto &button = it->second;
if (node["focused"].asBool()) {
button.get_style_context()->add_class("focused");
} else {
button.get_style_context()->remove_class("focused");
}
if (node["visible"].asBool()) {
button.get_style_context()->add_class("visible");
} else {
button.get_style_context()->remove_class("visible");
}
if (node["urgent"].asBool()) {
button.get_style_context()->add_class("urgent");
} else {
button.get_style_context()->remove_class("urgent");
}
if (needReorder) {
box_.reorder_child(button, getWorkspaceIndex(workspaces, node["name"].asString()));
}
auto icon = getIcon(node["name"].asString(), node);
std::string output = icon;
if (config_["format"].isString()) {
auto format = config_["format"].asString();
output = fmt::format(format,
fmt::arg("icon", icon),
fmt::arg("name", trimWorkspaceName(node["name"].asString())),
fmt::arg("index", node["num"].asString()));
}
if (!config_["disable-markup"].asBool()) {
static_cast<Gtk::Label *>(button.get_children()[0])->set_markup(output);
} else {
button.set_label(output);
}
onButtonReady(node, button);
}
}
if (scrolling_) {
scrolling_ = false;
auto &button = bit == buttons_.end() ? addButton(*it) : bit->second;
if ((*it)["focused"].asBool()) {
button.get_style_context()->add_class("focused");
} else {
button.get_style_context()->remove_class("focused");
}
if ((*it)["visible"].asBool()) {
button.get_style_context()->add_class("visible");
} else {
button.get_style_context()->remove_class("visible");
}
if ((*it)["urgent"].asBool()) {
button.get_style_context()->add_class("urgent");
} else {
button.get_style_context()->remove_class("urgent");
}
if (needReorder) {
box_.reorder_child(button, it - workspaces_.begin());
}
std::string output = getIcon((*it)["name"].asString(), *it);
if (config_["format"].isString()) {
auto format = config_["format"].asString();
output = fmt::format(format,
fmt::arg("icon", output),
fmt::arg("name", trimWorkspaceName((*it)["name"].asString())),
fmt::arg("index", (*it)["num"].asString()));
}
if (!config_["disable-markup"].asBool()) {
static_cast<Gtk::Label *>(button.get_children()[0])->set_markup(output);
} else {
button.set_label(output);
}
onButtonReady(*it, button);
}
}
void Workspaces::addWorkspace(const Json::Value &node) {
auto icon = getIcon(node["name"].asString(), node);
auto format = config_["format"].isString()
? fmt::format(config_["format"].asString(),
fmt::arg("icon", icon),
fmt::arg("name", trimWorkspaceName(node["name"].asString())),
fmt::arg("index", node["num"].asString()))
: icon;
auto pair = buttons_.emplace(node["name"].asString(), format);
Gtk::Button &Workspaces::addButton(const Json::Value &node) {
auto pair = buttons_.emplace(node["name"].asString(), node["name"].asString());
auto &button = pair.first->second;
if (!config_["disable-markup"].asBool()) {
static_cast<Gtk::Label *>(button.get_children()[0])->set_markup(format);
}
box_.pack_start(button, false, false, 0);
button.set_relief(Gtk::RELIEF_NONE);
button.signal_clicked().connect([this, pair] {
try {
auto cmd = fmt::format("workspace \"{}\"", pair.first->first);
ipc_.sendCmd(IPC_COMMAND, cmd);
ipc_.sendCmd(IPC_COMMAND, fmt::format("workspace \"{}\"", pair.first->first));
} catch (const std::exception &e) {
std::cerr << e.what() << std::endl;
}
@ -137,19 +127,7 @@ void Workspaces::addWorkspace(const Json::Value &node) {
button.add_events(Gdk::SCROLL_MASK | Gdk::SMOOTH_SCROLL_MASK);
button.signal_scroll_event().connect(sigc::mem_fun(*this, &Workspaces::handleScroll));
}
auto workspaces = getWorkspaces();
box_.reorder_child(button, getWorkspaceIndex(workspaces, node["name"].asString()));
if (node["focused"].asBool()) {
button.get_style_context()->add_class("focused");
}
if (node["visible"].asBool()) {
button.get_style_context()->add_class("visible");
}
if (node["urgent"].asBool()) {
button.get_style_context()->add_class("urgent");
}
onButtonReady(node, button);
return button;
}
std::string Workspaces::getIcon(const std::string &name, const Json::Value &node) {
@ -171,82 +149,57 @@ bool Workspaces::handleScroll(GdkEventScroll *e) {
if (scrolling_) {
return false;
}
auto workspaces = getWorkspaces();
uint8_t idx;
scrolling_ = true;
for (idx = 0; idx < workspaces.size(); idx += 1) {
if (workspaces[idx]["focused"].asBool()) {
break;
}
}
if (idx == workspaces.size()) {
std::string name;
auto it = std::find_if(workspaces_.begin(), workspaces_.end(), [](const auto &workspace) {
return workspace["focused"].asBool();
});
if (it == workspaces_.end()) {
scrolling_ = false;
return false;
}
std::string name;
if (e->direction == GDK_SCROLL_UP) {
name = getCycleWorkspace(workspaces, idx, true);
switch (e->direction) {
case GDK_SCROLL_DOWN:
case GDK_SCROLL_RIGHT:
name = getCycleWorkspace(it, false);
break;
case GDK_SCROLL_UP:
case GDK_SCROLL_LEFT:
name = getCycleWorkspace(it, true);
break;
case GDK_SCROLL_SMOOTH:
gdouble delta_x, delta_y;
gdk_event_get_scroll_deltas(reinterpret_cast<const GdkEvent *>(e), &delta_x, &delta_y);
if (delta_y < 0) {
name = getCycleWorkspace(it, true);
} else if (delta_y > 0) {
name = getCycleWorkspace(it, false);
}
break;
default:
break;
}
if (e->direction == GDK_SCROLL_DOWN) {
name = getCycleWorkspace(workspaces, idx, false);
}
if (e->direction == GDK_SCROLL_SMOOTH) {
gdouble delta_x, delta_y;
gdk_event_get_scroll_deltas(reinterpret_cast<const GdkEvent *>(e), &delta_x, &delta_y);
if (delta_y < 0) {
name = getCycleWorkspace(workspaces, idx, true);
} else if (delta_y > 0) {
name = getCycleWorkspace(workspaces, idx, false);
}
}
if (name.empty() || name == workspaces[idx]["name"].asString()) {
if (name.empty() || name == (*it)["name"].asString()) {
scrolling_ = false;
return false;
}
ipc_.sendCmd(IPC_COMMAND, fmt::format("workspace \"{}\"", name));
std::this_thread::sleep_for(std::chrono::milliseconds(150));
return true;
}
const std::string Workspaces::getCycleWorkspace(const Json::Value &workspaces,
uint8_t focused_workspace, bool prev) const {
auto inc = prev ? -1 : 1;
int size = workspaces.size();
uint8_t idx = 0;
for (int i = focused_workspace; i < size && i >= 0; i += inc) {
bool same_output = (workspaces[i]["output"].asString() == bar_.output->name &&
!config_["all-outputs"].asBool()) ||
config_["all-outputs"].asBool();
bool same_name =
workspaces[i]["name"].asString() == workspaces[focused_workspace]["name"].asString();
if (same_output && !same_name) {
return workspaces[i]["name"].asString();
}
if (prev && i - 1 < 0) {
i = size;
} else if (!prev && i + 1 >= size) {
i = -1;
} else if (idx >= workspaces.size()) {
return "";
}
idx += 1;
const std::string Workspaces::getCycleWorkspace(std::vector<Json::Value>::iterator it,
bool prev) const {
if (prev && it == workspaces_.begin()) {
return (*(--workspaces_.end()))["name"].asString();
}
return "";
}
uint16_t Workspaces::getWorkspaceIndex(const Json::Value &workspaces,
const std::string &name) const {
uint16_t idx = 0;
for (const auto &workspace : workspaces) {
if (workspace["name"].asString() == name) {
return idx;
}
if (!(!config_["all-outputs"].asBool() &&
workspace["output"].asString() != bar_.output->name)) {
idx += 1;
}
if (prev && it != workspaces_.begin())
--it;
else if (!prev && it != workspaces_.end())
++it;
if (!prev && it == workspaces_.end()) {
return (*(++workspaces_.begin()))["name"].asString();
}
return workspaces.size();
return (*it)["name"].asString();
}
std::string Workspaces::trimWorkspaceName(std::string name) {