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feat: init repo

pull/1/head
Alexis 2018-08-08 23:54:58 +02:00
parent 53ff4e0d60
commit fcb6a9aa8b
22 changed files with 2634 additions and 0 deletions
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30
include/bar.hpp 100644
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#pragma once
#include <gtkmm.h>
#include "wlr-layer-shell-unstable-v1-client-protocol.h"
namespace waybar {
struct Client;
struct Bar {
Bar(Client& client, std::unique_ptr<struct wl_output *>&& output);
Bar(const Bar&) = delete;
Client& client;
Gtk::Window window;
struct wl_surface *surface;
struct zwlr_layer_surface_v1 *layer_surface;
std::unique_ptr<struct wl_output *> output;
bool visible = true;
auto set_width(int) -> void;
auto toggle() -> void;
private:
auto setup_widgets() -> void;
auto setup_css() -> void;
int width = 10;
Glib::RefPtr<Gtk::StyleContext> style_context;
Glib::RefPtr<Gtk::CssProvider> css_provider;
};
}

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include/client.hpp 100644
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#pragma once
#include <iostream>
#include <fmt/format.h>
#include <gdk/gdk.h>
#include <gtkmm.h>
#include <wayland-client.h>
#include "wlr-layer-shell-unstable-v1-client-protocol.h"
#include "util/ptr_vec.hpp"
#include <gdk/gdkwayland.h>
#include "bar.hpp"
namespace waybar {
struct Client {
uint32_t height = 30;
std::string css_file = "./resources/style.css";
Gtk::Main gtk_main;
Glib::RefPtr<Gdk::Display> gdk_display;
struct wl_display *wlDisplay;
struct wl_registry *registry;
struct zwlr_layer_shell_v1 *layer_shell;
util::ptr_vec<Bar> bars;
struct {
sigc::signal<void(int, int)> workspace_state;
sigc::signal<void(std::string)> focused_window_name;
} signals;
Client(int argc, char* argv[]);
void bind_interfaces();
auto setup_css();
int main(int argc, char* argv[]);
};
}

32
include/ipc/client.hpp 100644
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#pragma once
#include <iostream>
#include "ipc.hpp"
/**
* IPC response including type of IPC response, size of payload and the json
* encoded payload string.
*/
struct ipc_response {
uint32_t size;
uint32_t type;
std::string payload;
};
/**
* Gets the path to the IPC socket from sway.
*/
std::string get_socketpath(void);
/**
* Opens the sway socket.
*/
int ipc_open_socket(std::string socket_path);
/**
* Issues a single IPC command and returns the buffer. len will be updated with
* the length of the buffer returned from sway.
*/
std::string ipc_single_command(int socketfd, uint32_t type, const char *payload, uint32_t *len);
/**
* Receives a single IPC response and returns an ipc_response.
*/
struct ipc_response ipc_recv_response(int socketfd);

32
include/ipc/ipc.hpp 100644
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#pragma once
#define event_mask(ev) (1 << (ev & 0x7F))
enum ipc_command_type {
// i3 command types - see i3's I3_REPLY_TYPE constants
IPC_COMMAND = 0,
IPC_GET_WORKSPACES = 1,
IPC_SUBSCRIBE = 2,
IPC_GET_OUTPUTS = 3,
IPC_GET_TREE = 4,
IPC_GET_MARKS = 5,
IPC_GET_BAR_CONFIG = 6,
IPC_GET_VERSION = 7,
IPC_GET_BINDING_MODES = 8,
IPC_GET_CONFIG = 9,
IPC_SEND_TICK = 10,
// sway-specific command types
IPC_GET_INPUTS = 100,
IPC_GET_SEATS = 101,
// Events sent from sway to clients. Events have the highest bits set.
IPC_EVENT_WORKSPACE = ((1<<31) | 0),
IPC_EVENT_OUTPUT = ((1<<31) | 1),
IPC_EVENT_MODE = ((1<<31) | 2),
IPC_EVENT_WINDOW = ((1<<31) | 3),
IPC_EVENT_BARCONFIG_UPDATE = ((1<<31) | 4),
IPC_EVENT_BINDING = ((1<<31) | 5),
IPC_EVENT_SHUTDOWN = ((1<<31) | 6),
IPC_EVENT_TICK = ((1<<31) | 7),
};

26
include/modules/battery.hpp 100644
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#pragma once
#include <filesystem>
#include <fstream>
#include <gtkmm.h>
#include <iostream>
#include <fmt/format.h>
#include "util/chrono.hpp"
namespace waybar::modules {
namespace fs = std::filesystem;
class Battery {
public:
Battery();
auto update() -> void;
operator Gtk::Widget&();
private:
static inline const fs::path _data_dir = "/sys/class/power_supply/";
std::vector<fs::path> _batteries;
util::SleeperThread _thread;
Gtk::Label _label;
};
}

19
include/modules/clock.hpp 100644
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#pragma once
#include <gtkmm.h>
#include <fmt/format.h>
#include <thread>
#include "util/chrono.hpp"
namespace waybar::modules {
class Clock {
public:
Clock();
operator Gtk::Widget &();
private:
Gtk::Label _label;
waybar::util::SleeperThread _thread;
};
}

27
include/modules/workspaces.hpp 100644
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#pragma once
#include <json/json.h>
#include <fmt/format.h>
#include "bar.hpp"
#include "client.hpp"
#include "util/chrono.hpp"
namespace waybar::modules {
class WorkspaceSelector {
public:
WorkspaceSelector(waybar::Bar &bar);
auto update() -> void;
operator Gtk::Widget &();
private:
void _addWorkspace(Json::Value node);
Json::Value _getWorkspaces();
Bar &_bar;
Gtk::Box *_box;
std::unordered_map<int, Gtk::Button> _buttons;
util::SleeperThread _thread;
int _ipcSocketfd;
int _ipcEventSocketfd;
};
}

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include/util/algorithm.hpp 100644
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#pragma once
#include <algorithm>
#include <functional>
#include <initializer_list>
#include <numeric>
#include <string>
#include <string_view>
namespace waybar::util {
/// Joins a sequence of strings, separating them using `js`
template<class StrIterator> // Models InputIterator<std::string>
std::string join_strings(StrIterator b, StrIterator e, std::string_view js = ", ")
{
std::string result;
std::for_each(b, e, [&](auto&& s) {
if (!result.empty()) {
result.append(js);
}
result.append(s);
});
return result;
}
inline const char* nonull(const char* str) {
if (str == nullptr) return "";
return str;
};
inline bool iequals(std::string_view a, std::string_view b)
{
return std::equal(a.begin(), a.end(), b.begin(), b.end(),
[](char a, char b) { return tolower(a) == tolower(b); });
}
inline bool starts_with(std::string_view prefix, std::string_view a)
{
return a.compare(0, prefix.size(), prefix) == 0;
}
inline bool ends_with(std::string_view prefix, std::string_view a)
{
return a.compare(a.size() - prefix.size(), prefix.size(), prefix) == 0;
}
/// Return a closure which compares the adress any reference to T to the address of t
template<typename T>
constexpr auto addr_eq(T&& t) {
return [&t] (auto&& t2) {
return &t == &t2;
};
}
template<typename T>
bool erase_this(std::vector<T>& cont, T* el)
{
if (el < cont.data() && el >= cont.data() + cont.size()) return false;
cont.erase(cont.begin() + (el - cont.data()));
return true;
}
template<typename T>
bool erase_this(std::vector<T>& cont, T& el)
{
return erase_this(cont, &el);
}
namespace detail {
template<class Func, int... ns>
constexpr auto generate_array_impl(std::integer_sequence<int, ns...>&&, Func&& gen)
{
return std::array<std::decay_t<decltype(std::invoke(gen, std::declval<int>()))>,
sizeof...(ns)>{{std::invoke(gen, ns)...}};
}
} // namespace detail
template<int n, class Func>
constexpr auto generate_array(Func&& gen)
{
auto intseq = std::make_integer_sequence<int, n>();
return detail::generate_array_impl(std::move(intseq), std::forward<Func>(gen));
}
namespace view {
namespace detail {
template<typename T>
using store_or_ref_t = std::conditional_t<std::is_rvalue_reference_v<T>, std::decay_t<T>, T&>;
}
template<typename Cont>
struct reverse {
reverse(Cont&& cont) noexcept : _container(std::forward<Cont>(cont)) {}
auto begin()
{
return std::rbegin(_container);
}
auto end()
{
return std::rend(_container);
}
auto begin() const
{
return std::rbegin(_container);
}
auto end() const
{
return std::rend(_container);
}
auto cbegin() const
{
return std::crbegin(_container);
}
auto cend() const
{
return std::crend(_container);
}
detail::store_or_ref_t<Cont&&> _container;
};
template<typename ContRef>
reverse(ContRef&& cont) -> reverse<ContRef&&>;
template<typename Cont>
struct constant {
constant(Cont&& cont) noexcept : _container(std::forward<Cont>(cont)){};
auto begin() const
{
return std::cbegin(_container);
}
auto end() const
{
return std::cend(_container);
}
auto cbegin() const
{
return std::cbegin(_container);
}
auto cend() const
{
return std::cend(_container);
}
detail::store_or_ref_t<Cont&&> _container;
};
template<typename ContRef>
constant(ContRef&& cont) -> constant<ContRef&&>;
} // namespace view
/*
* Range algorithms
*/
template<typename InputIt, typename Size, typename F>
constexpr InputIt for_each_n(InputIt&& first, Size n, F&& f)
{
for (Size i = 0; i < n; ++first, ++i) {
std::invoke(f, *first);
}
return first;
}
/// `for_each` with access to an index value. Function called as `f(*it, i)`
///
/// For each item in range `[first, last)`, invoke `f` with args
/// `*iter, i` where `iter` is the current iterator, and `i` is
/// an incrementing value, starting at zero. Use this instead of
/// raw indexed loops wherever possible.
///
/// \param first Input iterator to the begining of the range
/// \param last Input iterator to the end of the range
/// \param f Must be invocable with arguments `value_type`, `std::size_t`
/// \returns The number of iterations performed
template<typename InputIt, typename F>
constexpr std::size_t indexed_for(InputIt&& first, InputIt&& last, F&& f)
{
std::size_t i = 0;
std::for_each(std::forward<InputIt>(first), std::forward<InputIt>(last), [&](auto&& a) {
std::invoke(f, a, i);
i++;
});
return i;
}
template<typename Rng, typename F>
constexpr std::size_t indexed_for(Rng&& rng, F&& f)
{
return indexed_for(std::begin(rng), std::end(rng), std::forward<F>(f));
}
/// `for_each_n` with access to an index value. Function called as `f(*it, i)`
///
/// for `n` iterations, invoke `f` with args `*iter, i`
/// where `iter` is the current iterator starting with `first`,
/// and `i` is an incrementing value, starting at zero.
/// Use this instead of raw indexed loops wherever possible.
///
/// \param first Input iterator to the begining of the range
/// \param n Number of iterations to go through
/// \param f Must be invocable with arguments `value_type`, `std::size_t`
/// \returns An iterator one past the last one visited
template<class InputIt, class Size, class F>
constexpr InputIt indexed_for_n(InputIt first, Size n, F&& f)
{
for (Size i = 0; i < n; ++first, ++i) {
std::invoke(f, *first, i);
}
return first;
}
template<class Rng, class Size, class F>
constexpr std::size_t indexed_for_n(Rng&& rng, Size n, F&& f)
{
return indexed_for_n(std::begin(rng), std::end(rng), n, std::forward<F>(f));
}
template<typename Iter1, typename Iter2, typename F>
constexpr void for_both(Iter1&& f1, Iter1&& l1, Iter2&& f2, Iter2&& l2, F&& f)
{
Iter1 i1 = std::forward<Iter1>(f1);
Iter2 i2 = std::forward<Iter2>(f2);
for (; i1 != l1 && i2 != l2; i1++, i2++) {
std::invoke(f, *i1, *i2);
}
}
template<typename Rng1, typename Rng2, typename F>
constexpr void for_both(Rng1&& r1, Rng2&& r2, F&& f)
{
for_both(std::begin(r1), std::end(r1), std::begin(r2), std::end(r2), std::forward<F>(f));
}
/*
* Range based standard algorithms
*
* Thanks, chris from SO!
*/
template<typename Cont, typename T>
constexpr auto accumulate(Cont&& cont, T&& init)
{
// TODO C++20: std::accumulate is constexpr
using std::begin, std::end;
auto first = begin(cont);
auto last = end(cont);
for (; first != last; ++first) init = init + *first;
return init;
}
template<typename Cont, typename T, typename BinaryOperation>
constexpr auto accumulate(Cont&& cont, T&& init, BinaryOperation&& op)
{
// TODO C++20: std::accumulate is constexpr
using std::begin, std::end;
auto first = begin(cont);
auto last = end(cont);
for (; first != last; ++first) init = op(init, *first);
return init;
}
template<typename Cont, typename OutputIterator>
decltype(auto) adjacent_difference(Cont&& cont, OutputIterator&& first)
{
using std::begin;
using std::end;
return std::adjacent_difference(begin(cont), end(cont), std::forward<OutputIterator>(first));
}
template<typename Cont>
decltype(auto) prev_permutation(Cont&& cont)
{
using std::begin;
using std::end;
return std::prev_permutation(begin(cont), end(cont));
}
template<typename Cont, typename Compare>
decltype(auto) prev_permutation(Cont&& cont, Compare&& comp)
{
using std::begin;
using std::end;
return std::prev_permutation(begin(cont), end(cont), std::forward<Compare>(comp));
}
template<typename Cont>
decltype(auto) push_heap(Cont&& cont)
{
using std::begin;
using std::end;
return std::push_heap(begin(cont), end(cont));
}
template<typename Cont, typename Compare>
decltype(auto) push_heap(Cont&& cont, Compare&& comp)
{
using std::begin;
using std::end;
return std::push_heap(begin(cont), end(cont), std::forward<Compare>(comp));
}
template<typename Cont, typename T>
decltype(auto) remove(Cont&& cont, T&& value)
{
using std::begin;
using std::end;
return std::remove(begin(cont), end(cont), std::forward<T>(value));
}
template<typename Cont, typename OutputIterator, typename T>
decltype(auto) remove_copy(Cont&& cont, OutputIterator&& first, T&& value)
{
using std::begin;
using std::end;
return std::remove_copy(begin(cont), end(cont), std::forward<OutputIterator>(first),
std::forward<T>(value));
}
template<typename Cont, typename OutputIterator, typename UnaryPredicate>
decltype(auto) remove_copy_if(Cont&& cont, OutputIterator&& first, UnaryPredicate&& p)
{
using std::begin;
using std::end;
return std::remove_copy_if(begin(cont), end(cont), std::forward<OutputIterator>(first),
std::forward<UnaryPredicate>(p));
}
template<typename Cont, typename UnaryPredicate>
decltype(auto) remove_if(Cont&& cont, UnaryPredicate&& p)
{
using std::begin;
using std::end;
return std::remove_if(begin(cont), end(cont), std::forward<UnaryPredicate>(p));
}
template<typename Cont, typename T, typename T2>
decltype(auto) replace(Cont&& cont, T&& old_value, T2&& new_value)
{
using std::begin;
using std::end;
return std::replace(begin(cont), end(cont), std::forward<T>(old_value),
std::forward<T2>(new_value));
}
template<typename Cont, typename OutputIterator, typename T, typename T2>
decltype(auto) replace_copy(Cont&& cont, OutputIterator&& first, T&& old_value, T2&& new_value)
{
using std::begin;
using std::end;
return std::replace_copy(begin(cont), end(cont), std::forward<OutputIterator>(first),
std::forward<T>(old_value), std::forward<T2>(old_value));
}
template<typename Cont, typename OutputIterator, typename UnaryPredicate, typename T>
decltype(auto) replace_copy_if(Cont&& cont,
OutputIterator&& first,
UnaryPredicate&& p,
T&& new_value)
{
using std::begin;
using std::end;
return std::replace_copy(begin(cont), end(cont), std::forward<OutputIterator>(first),
std::forward<UnaryPredicate>(p), std::forward<T>(new_value));
}
template<typename Cont, typename UnaryPredicate, typename T>
decltype(auto) replace_if(Cont&& cont, UnaryPredicate&& p, T&& new_value)
{
using std::begin;
using std::end;
return std::replace_if(begin(cont), end(cont), std::forward<UnaryPredicate>(p),
std::forward<T>(new_value));
}
template<typename Cont>
decltype(auto) reverse(Cont&& cont)
{
using std::begin;
using std::end;
return std::reverse(begin(cont), end(cont));
}
template<typename Cont, typename OutputIterator>
decltype(auto) reverse_copy(Cont&& cont, OutputIterator&& first)
{
using std::begin;
using std::end;
return std::reverse_copy(begin(cont), end(cont), std::forward<OutputIterator>(first));
}
template<typename Cont, typename ForwardIterator>
decltype(auto) rotate(Cont&& cont, ForwardIterator&& new_first)
{
using std::begin;
using std::end;
return std::rotate(begin(cont), std::forward<ForwardIterator>(new_first), end(cont));
}
template<typename Cont, typename ForwardIterator, typename OutputIterator>
decltype(auto) rotate_copy(Cont&& cont, ForwardIterator&& new_first, OutputIterator&& first)
{
using std::begin;
using std::end;
return std::rotate_copy(begin(cont), std::forward<ForwardIterator>(new_first), end(cont),
std::forward<OutputIterator>(first));
}
template<typename Cont, typename Cont2>
decltype(auto) search(Cont&& cont, Cont2&& cont2)
{
using std::begin;
using std::end;
return std::search(begin(cont), end(cont), begin(cont2), end(cont2));
}
template<typename Cont, typename Cont2, typename BinaryPredicate>
decltype(auto) search(Cont&& cont, Cont2&& cont2, BinaryPredicate&& p)
{
using std::begin;
using std::end;
return std::search(begin(cont), end(cont), begin(cont2), end(cont2),
std::forward<BinaryPredicate>(p));
}
template<typename Cont, typename Size, typename T>
decltype(auto) search_n(Cont&& cont, Size count, T&& value)
{
using std::begin;
using std::end;
return std::search_n(begin(cont), end(cont), count, std::forward<T>(value));
}
template<typename Cont, typename Size, typename T, typename BinaryPredicate>
decltype(auto) search_n(Cont&& cont, Size count, T&& value, BinaryPredicate&& p)
{
using std::begin;
using std::end;
return std::search_n(begin(cont), end(cont), count, std::forward<T>(value),
std::forward<BinaryPredicate>(p));
}
template<typename Cont, typename Cont2, typename OutputIterator>
decltype(auto) set_difference(Cont&& cont, Cont2&& cont2, OutputIterator&& first)
{
using std::begin;
using std::end;
return std::set_difference(begin(cont), end(cont), begin(cont2), end(cont2),
std::forward<OutputIterator>(first));
}
template<typename Cont, typename Cont2, typename OutputIterator, typename Compare>
decltype(auto) set_difference(Cont&& cont, Cont2&& cont2, OutputIterator&& first, Compare&& comp)
{
using std::begin;
using std::end;
return std::set_difference(begin(cont), end(cont), begin(cont2), end(cont2),
std::forward<OutputIterator>(first), std::forward<Compare>(comp));
}
template<typename Cont, typename Cont2, typename OutputIterator>
decltype(auto) set_intersection(Cont&& cont, Cont2&& cont2, OutputIterator&& first)
{
using std::begin;
using std::end;
return std::set_intersection(begin(cont), end(cont), begin(cont2), end(cont2),
std::forward<OutputIterator>(first));
}
template<typename Cont, typename Cont2, typename OutputIterator, typename Compare>
decltype(auto) set_intersection(Cont&& cont,
Cont2&& cont2,
OutputIterator&& first,
Compare&& comp)
{
using std::begin;
using std::end;
return std::set_intersection(begin(cont), end(cont), begin(cont2), end(cont2),
std::forward<OutputIterator>(first), std::forward<Compare>(comp));
}
template<typename Cont, typename Cont2, typename OutputIterator>
decltype(auto) set_symmetric_difference(Cont&& cont, Cont2&& cont2, OutputIterator&& first)
{
using std::begin;
using std::end;
return std::set_symmetric_difference(begin(cont), end(cont), begin(cont2), end(cont2),
std::forward<OutputIterator>(first));
}
template<typename Cont, typename Cont2, typename OutputIterator, typename Compare>
decltype(auto) set_symmetric_difference(Cont&& cont,
Cont2&& cont2,
OutputIterator&& first,
Compare&& comp)
{
using std::begin;
using std::end;
return std::set_symmetric_difference(begin(cont), end(cont), begin(cont2), end(cont2),
std::forward<OutputIterator>(first),
std::forward<Compare>(comp));
}
template<typename Cont, typename Cont2, typename OutputIterator>
decltype(auto) set_union(Cont&& cont, Cont2&& cont2, OutputIterator&& first)
{
using std::begin;
using std::end;
return std::set_union(begin(cont), end(cont), begin(cont2), end(cont2),
std::forward<OutputIterator>(first));
}
template<typename Cont, typename Cont2, typename OutputIterator, typename Compare>
decltype(auto) set_union(Cont&& cont, Cont2&& cont2, OutputIterator&& first, Compare&& comp)
{
using std::begin;
using std::end;
return std::set_union(begin(cont), end(cont), begin(cont2), end(cont2),
std::forward<OutputIterator>(first), std::forward<Compare>(comp));
}
template<typename Cont, typename UniformRandomNumberGenerator>
decltype(auto) shuffle(Cont&& cont, UniformRandomNumberGenerator&& g)
{
using std::begin;
using std::end;
return std::shuffle(begin(cont), end(cont), std::forward<UniformRandomNumberGenerator>(g));
}
template<typename Cont>
decltype(auto) sort(Cont&& cont)
{
using std::begin;
using std::end;
return std::sort(begin(cont), end(cont));
}
template<typename Cont, typename Compare>
decltype(auto) sort(Cont&& cont, Compare&& comp)
{
using std::begin;
using std::end;
return std::sort(begin(cont), end(cont), std::forward<Compare>(comp));
}
template<typename Cont>
decltype(auto) sort_heap(Cont&& cont)
{
using std::begin;
using std::end;
return std::sort_heap(begin(cont), end(cont));
}
template<typename Cont, typename Compare>
decltype(auto) sort_heap(Cont&& cont, Compare&& comp)
{
using std::begin;
using std::end;
return std::sort_heap(begin(cont), end(cont), std::forward<Compare>(comp));
}
template<typename Cont, typename UnaryPredicate>
decltype(auto) stable_partition(Cont&& cont, UnaryPredicate&& p)
{
using std::begin;
using std::end;
return std::stable_partition(begin(cont), end(cont), std::forward<UnaryPredicate>(p));
}
template<typename Cont>
decltype(auto) stable_sort(Cont&& cont)
{
using std::begin;
using std::end;
return std::stable_sort(begin(cont), end(cont));
}
template<typename Cont, typename Compare>
decltype(auto) stable_sort(Cont&& cont, Compare&& comp)
{
using std::begin;
using std::end;
return std::stable_sort(begin(cont), end(cont), std::forward<Compare>(comp));
}
template<typename Cont, typename ForwardIterator>
decltype(auto) swap_ranges(Cont&& cont, ForwardIterator&& first)
{
using std::begin;
using std::end;
return std::swap_ranges(begin(cont), end(cont), std::forward<ForwardIterator>(first));
}
template<typename Cont, typename Cont2, typename F>
auto transform(Cont&& cont, Cont2&& cont2, F&& f) -> decltype(begin(cont2))
{
using std::begin;
using std::end;
return std::transform(begin(cont), end(cont), begin(cont2), std::forward<F>(f));
}
template<typename Cont, typename Iter, typename F>
decltype(auto) transform(Cont&& cont, Iter&& iter, F&& f)
{
using std::begin;
using std::end;
return std::transform(begin(cont), end(cont), std::forward<Iter>(iter), std::forward<F>(f));
}
template<typename Cont, typename Cont2, typename Cont3, typename BinaryPredicate>
auto transform(Cont&& cont, Cont2&& cont2, Cont3&& cont3, BinaryPredicate&& f)
-> decltype(begin(cont2), begin(cont3))
{
using std::begin;
using std::end;
return std::transform(begin(cont), end(cont), begin(cont2), begin(cont3),
std::forward<BinaryPredicate>(f));
}
template<typename Cont, typename InputIterator, typename Cont3, typename BinaryPredicate>
auto transform(Cont&& cont, InputIterator&& iter, Cont3&& cont3, BinaryPredicate&& f)
-> decltype(begin(cont), begin(cont3))
{
using std::begin;
using std::end;
return std::transform(begin(cont), end(cont), std::forward<InputIterator>(iter), begin(cont3),
std::forward<BinaryPredicate>(f));
}
template<typename Cont, typename Cont2, typename InputIterator, typename BinaryPredicate>
auto transform(Cont&& cont, Cont2&& cont2, InputIterator&& iter, BinaryPredicate&& f)
-> decltype(begin(cont), begin(cont2), iter)
{
using std::begin;
using std::end;
return std::transform(begin(cont), end(cont), begin(cont2), std::forward<InputIterator>(iter),
std::forward<BinaryPredicate>(f));
}
template<typename Cont, typename InputIterator, typename OutputIterator, typename BinaryOperation>
decltype(auto) transform(Cont&& cont,
InputIterator&& firstIn,
OutputIterator&& firstOut,
BinaryOperation&& op)
{
using std::begin;
using std::end;
return std::transform(begin(cont), end(cont), std::forward<InputIterator>(firstIn),
std::forward<OutputIterator>(firstOut),
std::forward<BinaryOperation>(op));
}
template<typename Cont>
decltype(auto) unique(Cont&& cont)
{
using std::begin;
using std::end;
return std::unique(begin(cont), end(cont));
}
template<typename Cont, typename BinaryPredicate>
decltype(auto) unique(Cont&& cont, BinaryPredicate&& p)
{
using std::begin;
using std::end;
return std::unique(begin(cont), end(cont), std::forward<BinaryPredicate>(p));
}
template<typename Cont, typename OutputIterator>
decltype(auto) unique_copy(Cont&& cont, OutputIterator&& first)
{
using std::begin;
using std::end;
return std::unique_copy(begin(cont), end(cont), std::forward<OutputIterator>(first));
}
template<typename Cont, typename OutputIterator, typename BinaryPredicate>
decltype(auto) unique_copy(Cont&& cont, OutputIterator&& first, BinaryPredicate&& p)
{
using std::begin;
using std::end;
return std::unique_copy(begin(cont), end(cont), std::forward<OutputIterator>(first),
std::forward<BinaryPredicate>(p));
}
template<typename Cont, typename T>
decltype(auto) upper_bound(Cont&& cont, T&& value)
{
using std::begin;
using std::end;
return std::upper_bound(begin(cont), end(cont), std::forward<T>(value));
}
template<typename Cont, typename T, typename Compare>
decltype(auto) upper_bound(Cont&& cont, T&& value, Compare&& comp)
{
using std::begin;
using std::end;
return std::upper_bound(begin(cont), end(cont), std::forward<T>(value),
std::forward<Compare>(comp));
}
template<typename Cont, typename OutputIterator>
decltype(auto) copy(Cont&& cont, OutputIterator&& first)
{
using std::begin;
using std::end;
return std::copy(begin(cont), end(cont), std::forward<OutputIterator>(first));
}
template<typename Cont, typename OutputIterator, typename UnaryPredicate>
decltype(auto) copy_if(Cont&& cont, OutputIterator&& first, UnaryPredicate&& p)
{
using std::begin;
using std::end;
return std::copy_if(begin(cont), end(cont), std::forward<OutputIterator>(first),
std::forward<UnaryPredicate>(p));
}
template<typename Cont, typename T>
decltype(auto) fill(Cont&& cont, T&& value)
{
using std::begin;
using std::end;
return std::fill(begin(cont), end(cont), std::forward<T>(value));
}
template<typename Cont, typename T>
decltype(auto) fill_n(Cont&& cont, std::size_t n, T&& value)
{
using std::begin;
using std::end;
return std::fill_n(begin(cont), n, std::forward<T>(value));
}
template<typename Cont, typename UnaryPredicate>
decltype(auto) any_of(Cont&& cont, UnaryPredicate&& p)
{
using std::begin;
using std::end;
return std::any_of(begin(cont), end(cont), std::forward<UnaryPredicate>(p));
}
template<typename Cont, typename UnaryPredicate>
decltype(auto) all_of(Cont&& cont, UnaryPredicate&& p)
{
using std::begin;
using std::end;
return std::all_of(begin(cont), end(cont), std::forward<UnaryPredicate>(p));
}
template<typename Cont, typename UnaryPredicate>
decltype(auto) none_of(Cont&& cont, UnaryPredicate&& p)
{
using std::begin;
using std::end;
return std::none_of(begin(cont), end(cont), std::forward<UnaryPredicate>(p));
}
template<typename Cont>
decltype(auto) max_element(Cont&& cont)
{
using std::begin;
using std::end;
return std::max_element(begin(cont), end(cont));
}
template<typename Cont>
decltype(auto) min_element(Cont&& cont)
{
using std::begin;
using std::end;
return std::min_element(begin(cont), end(cont));
}
template<typename Cont, typename Compare>
decltype(auto) min_element(Cont&& cont, Compare&& f)
{
using std::begin;
using std::end;
return std::min_element(begin(cont), end(cont), std::forward<Compare>(f));
}
template<typename Cont, typename Compare>
decltype(auto) max_element(Cont&& cont, Compare&& f)
{
using std::begin;
using std::end;
return std::max_element(begin(cont), end(cont), std::forward<Compare>(f));
}
template<typename Cont, typename T>
decltype(auto) find(Cont&& cont, T&& t)
{
using std::begin;
using std::end;
return std::find(begin(cont), end(cont), std::forward<T>(t));
}
template<typename Cont, typename UnaryPredicate>
decltype(auto) find_if(Cont&& cont, UnaryPredicate&& f)
{
using std::begin;
using std::end;
return std::find_if(begin(cont), end(cont), std::forward<UnaryPredicate>(f));
}
} // namespace waybar::util

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#pragma once
#include <chrono>
#include <ctime>
#include <functional>
#include <condition_variable>
#include <thread>
namespace waybar::chrono {
using namespace std::chrono;
using clock = std::chrono::system_clock;
using duration = clock::duration;
using time_point = std::chrono::time_point<clock, duration>;
inline struct timespec to_timespec(time_point t) noexcept
{
long secs = duration_cast<seconds>(t.time_since_epoch()).count();
long nsc = duration_cast<nanoseconds>(t.time_since_epoch() % seconds(1)).count();
return {secs, nsc};
}
inline time_point to_time_point(struct timespec t) noexcept
{
return time_point(duration_cast<duration>(seconds(t.tv_sec) + nanoseconds(t.tv_nsec)));
}
}
namespace waybar::util {
struct SleeperThread {
SleeperThread() = default;
SleeperThread(std::function<void()> func)
: thread{[this, func] {
do {
func();
} while (do_run);
}}
{}
SleeperThread& operator=(std::function<void()> func)
{
thread = std::thread([this, func] {
do {
func();
} while (do_run);
});
return *this;
}
auto sleep_for(chrono::duration dur)
{
auto lock = std::unique_lock(mutex);
return condvar.wait_for(lock, dur);
}
auto sleep_until(chrono::time_point time)
{
auto lock = std::unique_lock(mutex);
return condvar.wait_until(lock, time);
}
auto wake_up()
{
condvar.notify_all();
}
~SleeperThread()
{
do_run = false;
condvar.notify_all();
thread.join();
}
private:
std::thread thread;
std::condition_variable condvar;
std::mutex mutex;
bool do_run = true;
};
}

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#pragma once
#include <cassert>
#include <memory>
#include <type_traits>
#include <vector>
#include "algorithm.hpp"
namespace waybar::util {
/// An iterator wrapper that dereferences twice.
template<typename Iter>
struct double_iterator {
using wrapped = Iter;
using value_type = std::decay_t<decltype(*std::declval<typename wrapped::value_type>())>;
using difference_type = typename wrapped::difference_type;
using reference = value_type&;
using pointer = value_type*;
using iterator_category = std::random_access_iterator_tag;
using self_t = double_iterator<Iter>;
double_iterator(wrapped w) : _iter(std::move(w)) {}
double_iterator() : _iter() {}
reference operator*() const
{
return (**_iter);
}
pointer operator->() const
{
return &(**_iter);
}
self_t& operator++()
{
_iter.operator++();
return *this;
}
self_t operator++(int i)
{
return _iter.operator++(i);
}
self_t& operator--()
{
_iter.operator--();
return *this;
}
self_t operator--(int i)
{
return _iter.operator--(i);
}
auto operator==(const self_t& rhs) const noexcept
{
return _iter == rhs._iter;
}
auto operator!=(const self_t& rhs) const noexcept
{
return _iter != rhs._iter;
}
auto operator<(const self_t& rhs) const noexcept
{
return _iter < rhs._iter;
}
auto operator>(const self_t& rhs) const noexcept
{
return _iter > rhs._iter;
}
auto operator<=(const self_t& rhs) const noexcept
{
return _iter <= rhs._iter;
}
auto operator>=(const self_t& rhs) const noexcept
{
return _iter >= rhs._iter;
}
self_t operator+(difference_type d) const noexcept
{
return _iter + d;
}
self_t operator-(difference_type d) const noexcept
{
return _iter - d;
}
auto operator-(const self_t& rhs) const noexcept
{
return _iter - rhs._iter;
}
self_t& operator+=(difference_type d)
{
_iter += d;
return *this;
}
self_t& operator-=(difference_type d)
{
_iter -= d;
return *this;
}
operator wrapped&()
{
return _iter;
}
operator const wrapped&() const
{
return _iter;
}
wrapped& data()
{
return _iter;
}
const wrapped& data() const
{
return _iter;
}
private:
wrapped _iter;
};
template<typename Iter>
auto operator+(typename double_iterator<Iter>::difference_type diff, double_iterator<Iter> iter)
{
return iter + diff;
}
/// To avoid clients being moved, they are stored in unique_ptrs, which are
/// moved around in a vector. This class is purely for convenience, to still
/// have iterator semantics, and a few other utility functions
template<typename T>
struct ptr_vec {
using value_type = T;
std::vector<std::unique_ptr<value_type>> _order;
using iterator = double_iterator<typename decltype(_order)::iterator>;
using const_iterator = double_iterator<typename decltype(_order)::const_iterator>;
using reverse_iterator = double_iterator<typename decltype(_order)::reverse_iterator>;
using const_reverse_iterator =
double_iterator<typename decltype(_order)::const_reverse_iterator>;
value_type& push_back(const value_type& v)
{
auto ptr = std::make_unique<value_type>(v);
auto res = ptr.get();
_order.push_back(std::move(ptr));
return *res;
}
value_type& push_back(value_type&& v)
{
auto ptr = std::make_unique<value_type>(std::move(v));
auto res = ptr.get();
_order.push_back(std::move(ptr));
return *res;
}
value_type& push_back(std::unique_ptr<value_type> ptr)
{
auto res = ptr.get();
_order.push_back(std::move(ptr));
return *res;
}
template<typename... Args>
value_type& emplace_back(Args&&... args)
{
return push_back(std::make_unique<value_type>(std::forward<Args>(args)...));
}
std::unique_ptr<value_type> erase(const value_type& v)
{
auto iter =
std::find_if(_order.begin(), _order.end(), [&v](auto&& uptr) { return uptr.get() == &v; });
if (iter != _order.end()) {
auto uptr = std::move(*iter);
_order.erase(iter);
return uptr;
}
return nullptr;
}
iterator rotate_to_back(const value_type& v)
{
auto iter =
std::find_if(_order.begin(), _order.end(), [&v](auto&& uptr) { return uptr.get() == &v; });
return rotate_to_back(iter);
}
iterator rotate_to_back(iterator iter)
{
if (iter != _order.end()) {
{
return std::rotate(iter.data(), iter.data() + 1, _order.end());
}
}
return end();
}
iterator rotate_to_front(const value_type& v)
{
auto iter =
std::find_if(_order.begin(), _order.end(), [&v](auto&& uptr) { return uptr.get() == &v; });
return rotate_to_front(iter);
}
iterator rotate_to_front(iterator iter)
{
if (iter != _order.end()) {
{
return std::rotate(_order.begin(), iter.data(), iter.data() + 1);
}
}
return end();
}
std::size_t size() const noexcept
{
return _order.size();
}
bool empty() const noexcept
{
return _order.empty();
}
std::size_t capacity() const noexcept
{
return _order.capacity();
}
std::size_t max_size() const noexcept
{
return _order.max_size();
}
void reserve(std::size_t new_cap)
{
_order.reserve(new_cap);
}
void shrink_to_fit()
{
_order.shrink_to_fit();
}
value_type& operator[](std::size_t n)
{
return *_order[n];
}
const value_type& operator[](std::size_t n) const
{
return *_order[n];
}
value_type& at(std::size_t n)
{
return *_order.at(n);
}
const value_type& at(std::size_t n) const
{
return *_order.at(n);
}
iterator begin()
{
return _order.begin();
}
iterator end()
{
return _order.end();
}
const_iterator begin() const
{
return _order.begin();
}
const_iterator end() const
{
return _order.end();
}
reverse_iterator rbegin()
{
return _order.rbegin();
}
reverse_iterator rend()
{
return _order.rend();
}
const_reverse_iterator rbegin() const
{
return _order.rbegin();
}
const_reverse_iterator rend() const
{
return _order.rend();
}
value_type& front()
{
return *_order.front();
}
value_type& back()
{
return *_order.back();
}
const value_type& front() const
{
return *_order.front();
}
const value_type& back() const
{
return *_order.back();
}
std::vector<std::unique_ptr<value_type>>& underlying() {
return _order;
}
};
template<typename T, typename T2>
std::unique_ptr<T> erase_this(ptr_vec<T>& vec, T2* el)
{
return vec.erase(*el);
}
template<typename T, typename T2>
std::unique_ptr<T> erase_this(ptr_vec<T>& vec, T2& el)
{
return vec.erase(el);
}
template<typename T>
struct non_null_ptr {
non_null_ptr() = delete;
constexpr non_null_ptr(T* ptr) : _ptr(ptr)
{
assert(ptr != nullptr);
}
non_null_ptr(std::nullptr_t) = delete;
constexpr non_null_ptr(const non_null_ptr&) = default;
constexpr non_null_ptr(non_null_ptr&&) = default;
constexpr non_null_ptr& operator=(const non_null_ptr&) = default;
constexpr non_null_ptr& operator=(non_null_ptr&&) = default;
constexpr T& operator*() const noexcept
{
return *_ptr;
}
constexpr T* operator->() const noexcept
{
return _ptr;
}
constexpr operator T*() noexcept
{
return _ptr;
}
constexpr operator T* const() const noexcept
{
return _ptr;
}
private:
T* _ptr;
};
template<typename T>
struct ref_vec {
using value_type = T;
std::vector<value_type*> _order;
using iterator = double_iterator<typename decltype(_order)::iterator>;
using const_iterator = double_iterator<typename decltype(_order)::const_iterator>;
using reverse_iterator = double_iterator<typename decltype(_order)::reverse_iterator>;
using const_reverse_iterator =
double_iterator<typename decltype(_order)::const_reverse_iterator>;
ref_vec() = default;
ref_vec(std::initializer_list<value_type*> lst) : _order {lst} { };
template<typename InputIter, typename = std::enable_if_t<std::is_same_v<decltype(*std::declval<InputIter>()), value_type&>>>
ref_vec(InputIter iter1, InputIter iter2) {
_order.reserve(std::distance(iter1, iter2));
std::transform(iter1, iter2, std::back_inserter(_order), [] (auto& v) {return &v; });
}
template<typename Range, typename = std::enable_if_t<std::is_same_v<decltype(*std::declval<Range>().begin()), value_type&>>>
ref_vec(Range&& rng) : ref_vec (std::begin(rng), std::end(rng)) { }
value_type& push_back(value_type& v)
{
_order.push_back(&v);
return v;
}
value_type& push_back(non_null_ptr<value_type> ptr)
{
_order.push_back(ptr);
return *ptr;
}
value_type& emplace_back(value_type& v)
{
return push_back(v);
}
std::unique_ptr<value_type> erase(const value_type& v)
{
auto iter =
std::find_if(_order.begin(), _order.end(), [&v](auto&& ptr) { return ptr == &v; });
if (iter != _order.end()) {
auto uptr = std::move(*iter);
_order.erase(iter);
return uptr;
}
return nullptr;
}
iterator rotate_to_back(const value_type& v)
{
auto iter =
std::find_if(_order.begin(), _order.end(), [&v](auto&& ptr) { return ptr == &v; });
return rotate_to_back(iter);
}
iterator rotate_to_back(iterator iter)
{
if (iter != _order.end()) {
{
return std::rotate(iter.data(), iter.data() + 1, _order.end());
}
}
return end();
}
iterator rotate_to_front(const value_type& v)
{
auto iter =
std::find_if(_order.begin(), _order.end(), [&v](auto&& ptr) { return ptr == &v; });
return rotate_to_front(iter);
}
iterator rotate_to_front(iterator iter)
{
if (iter != _order.end()) {
{
return std::rotate(_order.begin(), iter.data(), iter.data() + 1);
}
}
return end();
}
std::size_t size() const noexcept
{
return _order.size();
}
bool empty() const noexcept
{
return _order.empty();
}
std::size_t capacity() const noexcept
{
return _order.capacity();
}
std::size_t max_size() const noexcept
{
return _order.max_size();
}
void reserve(std::size_t new_cap)
{
_order.reserve(new_cap);
}
void shrink_to_fit()
{
_order.shrink_to_fit();
}
value_type& operator[](std::size_t n)
{
return *_order[n];
}
const value_type& operator[](std::size_t n) const
{
return *_order[n];
}
value_type& at(std::size_t n)
{
return *_order.at(n);
}
const value_type& at(std::size_t n) const
{
return *_order.at(n);
}
iterator begin()
{
return _order.begin();
}
iterator end()
{
return _order.end();
}
const_iterator begin() const
{
return _order.begin();
}
const_iterator end() const
{
return _order.end();
}
reverse_iterator rbegin()
{
return _order.rbegin();
}
reverse_iterator rend()
{
return _order.rend();
}
const_reverse_iterator rbegin() const
{
return _order.rbegin();
}
const_reverse_iterator rend() const
{
return _order.rend();
}
value_type& front()
{
return *_order.front();
}
value_type& back()
{
return *_order.back();
}
const value_type& front() const
{
return *_order.front();
}
const value_type& back() const
{
return *_order.back();
}
std::vector<value_type*>& underlying() {
return _order;
}
};
} // namespace waybar::util

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project('waybar', 'cpp', 'c', default_options : ['cpp_std=c++17'])
cpp_args = []
cpp_link_args = []
if false # libc++
cpp_args += ['-stdlib=libc++']
cpp_link_args += ['-stdlib=libc++', '-lc++abi']
cpp_link_args += ['-lc++fs']
else
# TODO: For std::filesystem in libstdc++. Still unstable? Or why is it not in libstdc++ proper yet?
cpp_link_args += ['-lstdc++fs']
endif
add_global_arguments(cpp_args, language : 'cpp')
add_global_link_arguments(cpp_link_args, language : 'cpp')
thread_dep = dependency('threads')
libinput = dependency('libinput')
fmt = dependency('fmt', fallback: ['fmtlib', 'fmt_dep'])
wayland_client = dependency('wayland-client')
wayland_cursor = dependency('wayland-cursor')
wayland_protos = dependency('wayland-protocols')
wlroots = dependency('wlroots', fallback: ['wlroots', 'wlroots'])
gtkmm = dependency('gtkmm-3.0')
jsoncpp = dependency('jsoncpp')
sigcpp = dependency('sigc++-2.0')
subdir('protocol')
executable(
'waybar',
run_command('find', './src', '-name', '*.cpp').stdout().strip().split('\n'),
dependencies: [
thread_dep,
wlroots,
client_protos,
wayland_client,
fmt,
sigcpp,
jsoncpp,
libinput,
wayland_cursor,
gtkmm,
],
include_directories: [include_directories('include')],
install: true,
)

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protocol/meson.build 100644
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wl_protocol_dir = wayland_protos.get_pkgconfig_variable('pkgdatadir')
wayland_scanner = find_program('wayland-scanner')
# should check wayland_scanner's version, but it is hard to get
if wayland_client.version().version_compare('>=1.14.91')
code_type = 'private-code'
else
code_type = 'code'
endif
wayland_scanner_code = generator(
wayland_scanner,
output: '@BASENAME@-protocol.c',
arguments: [code_type, '@INPUT@', '@OUTPUT@'],
)
wayland_scanner_client = generator(
wayland_scanner,
output: '@BASENAME@-client-protocol.h',
arguments: ['client-header', '@INPUT@', '@OUTPUT@'],
)
client_protocols = [
[wl_protocol_dir, 'stable/xdg-shell/xdg-shell.xml'],
['wlr-layer-shell-unstable-v1.xml'],
]
client_protos_src = []
client_protos_headers = []
foreach p : client_protocols
xml = join_paths(p)
client_protos_src += wayland_scanner_code.process(xml)
client_protos_headers += wayland_scanner_client.process(xml)
endforeach
lib_client_protos = static_library(
'client_protos',
client_protos_src + client_protos_headers,
dependencies: [wayland_client]
) # for the include directory
client_protos = declare_dependency(
link_with: lib_client_protos,
sources: client_protos_headers,
)

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protocol/wlr-layer-shell-unstable-v1.xml 100644
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<?xml version="1.0" encoding="UTF-8"?>
<protocol name="wlr_layer_shell_unstable_v1">
<copyright>
Copyright © 2017 Drew DeVault
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
without fee, provided that the above copyright notice appear in
all copies and that both that copyright notice and this permission
notice appear in supporting documentation, and that the name of
the copyright holders not be used in advertising or publicity
pertaining to distribution of the software without specific,
written prior permission. The copyright holders make no
representations about the suitability of this software for any
purpose. It is provided "as is" without express or implied
warranty.
THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
</copyright>
<interface name="zwlr_layer_shell_v1" version="1">
<description summary="create surfaces that are layers of the desktop">
Clients can use this interface to assign the surface_layer role to
wl_surfaces. Such surfaces are assigned to a "layer" of the output and
rendered with a defined z-depth respective to each other. They may also be
anchored to the edges and corners of a screen and specify input handling
semantics. This interface should be suitable for the implementation of
many desktop shell components, and a broad number of other applications
that interact with the desktop.
</description>
<request name="get_layer_surface">
<description summary="create a layer_surface from a surface">
Create a layer surface for an existing surface. This assigns the role of
layer_surface, or raises a protocol error if another role is already
assigned.
Creating a layer surface from a wl_surface which has a buffer attached
or committed is a client error, and any attempts by a client to attach
or manipulate a buffer prior to the first layer_surface.configure call
must also be treated as errors.
You may pass NULL for output to allow the compositor to decide which
output to use. Generally this will be the one that the user most
recently interacted with.
Clients can specify a namespace that defines the purpose of the layer
surface.
</description>
<arg name="id" type="new_id" interface="zwlr_layer_surface_v1"/>
<arg name="surface" type="object" interface="wl_surface"/>
<arg name="output" type="object" interface="wl_output" allow-null="true"/>
<arg name="layer" type="uint" enum="layer" summary="layer to add this surface to"/>
<arg name="np" type="string" summary="namespace for the layer surface"/>
</request>
<enum name="error">
<entry name="role" value="0" summary="wl_surface has another role"/>
<entry name="invalid_layer" value="1" summary="layer value is invalid"/>
<entry name="already_constructed" value="2" summary="wl_surface has a buffer attached or committed"/>
</enum>
<enum name="layer">
<description summary="available layers for surfaces">
These values indicate which layers a surface can be rendered in. They
are ordered by z depth, bottom-most first. Traditional shell surfaces
will typically be rendered between the bottom and top layers.
Fullscreen shell surfaces are typically rendered at the top layer.
Multiple surfaces can share a single layer, and ordering within a
single layer is undefined.
</description>
<entry name="background" value="0"/>
<entry name="bottom" value="1"/>
<entry name="top" value="2"/>
<entry name="overlay" value="3"/>
</enum>
</interface>
<interface name="zwlr_layer_surface_v1" version="1">
<description summary="layer metadata interface">
An interface that may be implemented by a wl_surface, for surfaces that
are designed to be rendered as a layer of a stacked desktop-like
environment.
Layer surface state (size, anchor, exclusive zone, margin, interactivity)
is double-buffered, and will be applied at the time wl_surface.commit of
the corresponding wl_surface is called.
</description>
<request name="set_size">
<description summary="sets the size of the surface">
Sets the size of the surface in surface-local coordinates. The
compositor will display the surface centered with respect to its
anchors.
If you pass 0 for either value, the compositor will assign it and
inform you of the assignment in the configure event. You must set your
anchor to opposite edges in the dimensions you omit; not doing so is a
protocol error. Both values are 0 by default.
Size is double-buffered, see wl_surface.commit.
</description>
<arg name="width" type="uint"/>
<arg name="height" type="uint"/>
</request>
<request name="set_anchor">
<description summary="configures the anchor point of the surface">
Requests that the compositor anchor the surface to the specified edges
and corners. If two orthoginal edges are specified (e.g. 'top' and
'left'), then the anchor point will be the intersection of the edges
(e.g. the top left corner of the output); otherwise the anchor point
will be centered on that edge, or in the center if none is specified.
Anchor is double-buffered, see wl_surface.commit.
</description>
<arg name="anchor" type="uint" enum="anchor"/>
</request>
<request name="set_exclusive_zone">
<description summary="configures the exclusive geometry of this surface">
Requests that the compositor avoids occluding an area of the surface
with other surfaces. The compositor's use of this information is
implementation-dependent - do not assume that this region will not
actually be occluded.
A positive value is only meaningful if the surface is anchored to an
edge, rather than a corner. The zone is the number of surface-local
coordinates from the edge that are considered exclusive.
Surfaces that do not wish to have an exclusive zone may instead specify
how they should interact with surfaces that do. If set to zero, the
surface indicates that it would like to be moved to avoid occluding
surfaces with a positive excluzive zone. If set to -1, the surface
indicates that it would not like to be moved to accomodate for other
surfaces, and the compositor should extend it all the way to the edges
it is anchored to.
For example, a panel might set its exclusive zone to 10, so that
maximized shell surfaces are not shown on top of it. A notification
might set its exclusive zone to 0, so that it is moved to avoid
occluding the panel, but shell surfaces are shown underneath it. A
wallpaper or lock screen might set their exclusive zone to -1, so that
they stretch below or over the panel.
The default value is 0.
Exclusive zone is double-buffered, see wl_surface.commit.
</description>
<arg name="zone" type="int"/>
</request>
<request name="set_margin">
<description summary="sets a margin from the anchor point">
Requests that the surface be placed some distance away from the anchor
point on the output, in surface-local coordinates. Setting this value
for edges you are not anchored to has no effect.
The exclusive zone includes the margin.
Margin is double-buffered, see wl_surface.commit.
</description>
<arg name="top" type="int"/>
<arg name="right" type="int"/>
<arg name="bottom" type="int"/>
<arg name="left" type="int"/>
</request>
<request name="set_keyboard_interactivity">
<description summary="requests keyboard events">
Set to 1 to request that the seat send keyboard events to this layer
surface. For layers below the shell surface layer, the seat will use
normal focus semantics. For layers above the shell surface layers, the
seat will always give exclusive keyboard focus to the top-most layer
which has keyboard interactivity set to true.
Layer surfaces receive pointer, touch, and tablet events normally. If
you do not want to receive them, set the input region on your surface
to an empty region.
Events is double-buffered, see wl_surface.commit.
</description>
<arg name="keyboard_interactivity" type="uint"/>
</request>
<request name="get_popup">
<description summary="assign this layer_surface as an xdg_popup parent">
This assigns an xdg_popup's parent to this layer_surface. This popup
should have been created via xdg_surface::get_popup with the parent set
to NULL, and this request must be invoked before committing the popup's
initial state.
See the documentation of xdg_popup for more details about what an
xdg_popup is and how it is used.
</description>
<arg name="popup" type="object" interface="xdg_popup"/>
</request>
<request name="ack_configure">
<description summary="ack a configure event">
When a configure event is received, if a client commits the
surface in response to the configure event, then the client
must make an ack_configure request sometime before the commit
request, passing along the serial of the configure event.
If the client receives multiple configure events before it
can respond to one, it only has to ack the last configure event.
A client is not required to commit immediately after sending
an ack_configure request - it may even ack_configure several times
before its next surface commit.
A client may send multiple ack_configure requests before committing, but
only the last request sent before a commit indicates which configure
event the client really is responding to.
</description>
<arg name="serial" type="uint" summary="the serial from the configure event"/>
</request>
<request name="destroy" type="destructor">
<description summary="destroy the layer_surface">
This request destroys the layer surface.
</description>
</request>
<event name="configure">
<description summary="suggest a surface change">
The configure event asks the client to resize its surface.
Clients should arrange their surface for the new states, and then send
an ack_configure request with the serial sent in this configure event at
some point before committing the new surface.
The client is free to dismiss all but the last configure event it
received.
The width and height arguments specify the size of the window in
surface-local coordinates.
The size is a hint, in the sense that the client is free to ignore it if
it doesn't resize, pick a smaller size (to satisfy aspect ratio or
resize in steps of NxM pixels). If the client picks a smaller size and
is anchored to two opposite anchors (e.g. 'top' and 'bottom'), the
surface will be centered on this axis.
If the width or height arguments are zero, it means the client should
decide its own window dimension.
</description>
<arg name="serial" type="uint"/>
<arg name="width" type="uint"/>
<arg name="height" type="uint"/>
</event>
<event name="closed">
<description summary="surface should be closed">
The closed event is sent by the compositor when the surface will no
longer be shown. The output may have been destroyed or the user may
have asked for it to be removed. Further changes to the surface will be
ignored. The client should destroy the resource after receiving this
event, and create a new surface if they so choose.
</description>
</event>
<enum name="error">
<entry name="invalid_surface_state" value="0" summary="provided surface state is invalid"/>
<entry name="invalid_size" value="1" summary="size is invalid"/>
<entry name="invalid_anchor" value="2" summary="anchor bitfield is invalid"/>
</enum>
<enum name="anchor" bitfield="true">
<entry name="top" value="1" summary="the top edge of the anchor rectangle"/>
<entry name="bottom" value="2" summary="the bottom edge of the anchor rectangle"/>
<entry name="left" value="4" summary="the left edge of the anchor rectangle"/>
<entry name="right" value="8" summary="the right edge of the anchor rectangle"/>
</enum>
</interface>
</protocol>

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* {
border: none;
border-radius: 0;
font-family: Roboto, Helvetica, Arial, sans-serif;
font-size: 13px;
}
window {
background: rgba(43, 48, 59, 0.5);
border-bottom: 3px solid rgba(100, 114, 125, 0.5);
color: white;
}
.focused-window-title {
padding: 0px 10px;
min-height: 0px;
}
.workspace-selector button {
padding: 0 5px;
background: transparent;
color: white;
border-bottom: 3px solid transparent;
}
.workspace-selector button.current {
background: #64727D;
border-bottom: 3px solid white;
}
.clock-widget {
background-color: #64727D;
padding: 0 10px;
margin: 0 5px;
border-bottom: 2px solid transparent;
}
.battery-status {
padding: 0 10px;
border-bottom: 2px solid transparent;
}
.battery-status.battery-charging {
background-color: #26A65B;
}

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#include <condition_variable>
#include <gdk/gdkwayland.h>
#include <thread>
#include "bar.hpp"
#include "client.hpp"
#include "util/chrono.hpp"
#include "modules/clock.hpp"
#include "modules/workspaces.hpp"
#include "modules/battery.hpp"
static void handle_geometry(void *data, struct wl_output *wl_output, int32_t x,
int32_t y, int32_t physical_width, int32_t physical_height, int32_t subpixel,
const char *make, const char *model, int32_t transform)
{
// Nothing here
}
static void handle_mode(void *data, struct wl_output *wl_output, uint32_t f,
int32_t w, int32_t h, int32_t refresh)
{
auto o = reinterpret_cast<waybar::Bar *>(data);
std::cout << fmt::format("Bar width configured: {}", w) << std::endl;
o->set_width(w);
}
static void handle_done(void *data, struct wl_output *)
{
// Nothing here
}
static void handle_scale(void *data, struct wl_output *wl_output,
int32_t factor)
{
// Nothing here
}
static const struct wl_output_listener outputListener = {
.geometry = handle_geometry,
.mode = handle_mode,
.done = handle_done,
.scale = handle_scale,
};
static void layer_surface_handle_configure(
void *data, struct zwlr_layer_surface_v1 *surface, uint32_t serial,
uint32_t width, uint32_t height)
{
auto o = reinterpret_cast<waybar::Bar *>(data);
o->window.show_all();
zwlr_layer_surface_v1_ack_configure(surface, serial);
if (o->client.height != height)
{
height = o->client.height;
std::cout << fmt::format("New Height: {}", height) << std::endl;
zwlr_layer_surface_v1_set_size(surface, width, height);
zwlr_layer_surface_v1_set_exclusive_zone(surface, o->visible ? height : 0);
wl_surface_commit(o->surface);
}
}
static void layer_surface_handle_closed(void *data,
struct zwlr_layer_surface_v1 *surface)
{
auto o = reinterpret_cast<waybar::Bar *>(data);
zwlr_layer_surface_v1_destroy(o->layer_surface);
o->layer_surface = NULL;
wl_surface_destroy(o->surface);
o->surface = NULL;
o->window.close();
}
static const struct zwlr_layer_surface_v1_listener layerSurfaceListener = {
.configure = layer_surface_handle_configure,
.closed = layer_surface_handle_closed,
};
waybar::Bar::Bar(Client &client, std::unique_ptr<struct wl_output *> &&p_output)
: client(client), window{Gtk::WindowType::WINDOW_TOPLEVEL},
output(std::move(p_output))
{
wl_output_add_listener(*output, &outputListener, this);
window.set_title("waybar");
window.set_decorated(false);
// window.set_resizable(false);
setup_css();
setup_widgets();
gtk_widget_realize(GTK_WIDGET(window.gobj()));
GdkWindow *gdkWindow = gtk_widget_get_window(GTK_WIDGET(window.gobj()));
gdk_wayland_window_set_use_custom_surface(gdkWindow);
surface = gdk_wayland_window_get_wl_surface(gdkWindow);
layer_surface = zwlr_layer_shell_v1_get_layer_surface(
client.layer_shell, surface, *output, ZWLR_LAYER_SHELL_V1_LAYER_TOP,
"waybar");
zwlr_layer_surface_v1_set_anchor(layer_surface,
ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP |
ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT);
zwlr_layer_surface_v1_set_size(layer_surface, width, client.height);
zwlr_layer_surface_v1_add_listener(layer_surface, &layerSurfaceListener,
this);
wl_surface_commit(surface);
}
auto waybar::Bar::setup_css() -> void
{
css_provider = Gtk::CssProvider::create();
style_context = Gtk::StyleContext::create();
// load our css file, wherever that may be hiding
if (css_provider->load_from_path(client.css_file))
{
Glib::RefPtr<Gdk::Screen> screen = window.get_screen();
style_context->add_provider_for_screen(screen, css_provider,
GTK_STYLE_PROVIDER_PRIORITY_USER);
}
}
auto waybar::Bar::set_width(int width) -> void
{
this->width = width;
window.set_size_request(width);
window.resize(width, client.height);
zwlr_layer_surface_v1_set_size(layer_surface, width, 40);
wl_surface_commit(surface);
}
auto waybar::Bar::toggle() -> void
{
visible = !visible;
auto zone = visible ? client.height : 0;
zwlr_layer_surface_v1_set_exclusive_zone(layer_surface, zone);
wl_surface_commit(surface);
}
auto waybar::Bar::setup_widgets() -> void
{
auto &left = *Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL, 0));
auto &center = *Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL, 0));
auto &right = *Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL, 0));
auto &box1 = *Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL, 0));
window.add(box1);
box1.set_homogeneous(true);
box1.pack_start(left, true, true);
box1.pack_start(center, false, false);
box1.pack_end(right, true, true);
auto &focused_window = *Gtk::manage(new Gtk::Label());
focused_window.get_style_context()->add_class("focused-window-title");
client.signals.focused_window_name.connect(
[&focused_window](std::string focused_window_name) {
if (focused_window_name.size() > 70)
{
focused_window_name.erase(67);
focused_window_name += "...";
}
focused_window.set_text(focused_window_name);
});
focused_window.set_hexpand(false);
auto &clock = *new waybar::modules::Clock();
auto &workspace_selector = *new waybar::modules::WorkspaceSelector(*this);
auto &battery = *new waybar::modules::Battery();
left.pack_start(workspace_selector, false, true, 0);
// center.pack_start(workspace_selector, true, false, 10);
right.pack_end(clock, false, false, 0);
right.pack_end(battery, false, false, 0);
}

47
src/client.cpp 100644
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#include "client.hpp"
static void handle_global(void *data, struct wl_registry *registry,
uint32_t name, const char *interface, uint32_t version)
{
auto o = reinterpret_cast<waybar::Client *>(data);
if (!strcmp(interface, zwlr_layer_shell_v1_interface.name)) {
o->layer_shell = (zwlr_layer_shell_v1 *)wl_registry_bind(registry, name,
&zwlr_layer_shell_v1_interface, version);
} else if (!strcmp(interface, wl_output_interface.name)) {
auto output = std::make_unique<struct wl_output *>();
*output = (struct wl_output *)wl_registry_bind(registry, name,
&wl_output_interface, version);
o->bars.emplace_back(*o, std::move(output));
}
}
static void handle_global_remove(void *data,
struct wl_registry *registry, uint32_t name)
{
// TODO
}
static const struct wl_registry_listener registry_listener = {
.global = handle_global,
.global_remove = handle_global_remove,
};
waybar::Client::Client(int argc, char* argv[])
: gtk_main(argc, argv),
gdk_display(Gdk::Display::get_default()),
wlDisplay(gdk_wayland_display_get_wl_display(gdk_display->gobj()))
{}
void waybar::Client::bind_interfaces()
{
registry = wl_display_get_registry(wlDisplay);
wl_registry_add_listener(registry, &registry_listener, this);
wl_display_roundtrip(wlDisplay);
}
int waybar::Client::main(int argc, char* argv[])
{
bind_interfaces();
gtk_main.run();
return 0;
}

101
src/ipc/client.cpp 100644
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#define _POSIX_C_SOURCE 200809L
#include <string>
#include <stdio.h>
#include <sys/socket.h>
#include <sys/un.h>
#include "ipc/client.hpp"
static const char ipc_magic[] = {'i', '3', '-', 'i', 'p', 'c'};
static const size_t ipc_header_size = sizeof(ipc_magic)+8;
std::string get_socketpath(void) {
const char *env = getenv("SWAYSOCK");
if (env) return std::string(env);
std::string str;
{
std::string str_buf;
FILE* in;
char buf[512] = { 0 };
if (!(in = popen("sway --get-socketpath 2>/dev/null", "r"))) {
throw std::runtime_error("Failed to get socket path");
}
while (fgets(buf, sizeof(buf), in) != nullptr) {
str_buf.append(buf, sizeof(buf));
}
pclose(in);
str = str_buf;
}
if (str.back() == '\n') {
str.pop_back();
}
return str;
}
int ipc_open_socket(std::string socket_path) {
struct sockaddr_un addr;
int socketfd;
if ((socketfd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
throw std::runtime_error("Unable to open Unix socket");
}
addr.sun_family = AF_UNIX;
strncpy(addr.sun_path, socket_path.c_str(), sizeof(addr.sun_path) - 1);
addr.sun_path[sizeof(addr.sun_path) - 1] = 0;
int l = sizeof(struct sockaddr_un);
if (connect(socketfd, (struct sockaddr *)&addr, l) == -1) {
throw std::runtime_error("Unable to connect to " + socket_path);
}
return socketfd;
}
struct ipc_response ipc_recv_response(int socketfd) {
char data[ipc_header_size];
uint32_t *data32 = (uint32_t *)(data + sizeof(ipc_magic));
size_t total = 0;
while (total < ipc_header_size) {
ssize_t received = recv(socketfd, data + total, ipc_header_size - total, 0);
if (received <= 0) {
throw std::runtime_error("Unable to receive IPC response");
}
total += received;
}
struct ipc_response response;
total = 0;
response.size = data32[0];
response.type = data32[1];
char payload[response.size + 1];
while (total < response.size) {
ssize_t received = recv(socketfd, payload + total, response.size - total, 0);
if (received < 0) {
throw std::runtime_error("Unable to receive IPC response");
}
total += received;
}
payload[response.size] = '\0';
response.payload = std::string(payload);
return response;
}
std::string ipc_single_command(int socketfd, uint32_t type, const char *payload, uint32_t *len) {
char data[ipc_header_size];
uint32_t *data32 = (uint32_t *)(data + sizeof(ipc_magic));
memcpy(data, ipc_magic, sizeof(ipc_magic));
data32[0] = *len;
data32[1] = type;
if (send(socketfd, data, ipc_header_size, 0) == -1) {
throw std::runtime_error("Unable to send IPC header");
}
if (send(socketfd, payload, *len, 0) == -1) {
throw std::runtime_error("Unable to send IPC payload");
}
struct ipc_response resp = ipc_recv_response(socketfd);
std::string response = resp.payload;
*len = resp.size;
return response;
}

30
src/main.cpp 100644
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#include <gtkmm.h>
#include <wayland-client.hpp>
#include <gdk/gdkwayland.h>
#include <csignal>
#include "client.hpp"
namespace waybar {
static Client* client;
}
int main(int argc, char* argv[])
{
try {
waybar::Client c(argc, argv);
waybar::client = &c;
std::signal(SIGUSR1, [] (int signal) {
for (auto& bar : waybar::client->bars) {
bar.toggle();
}
});
return c.main(argc, argv);
} catch (const std::exception& e) {
std::cerr << e.what() << std::endl;
return 1;
} catch (const Glib::Exception& e) {
std::cerr << e.what().c_str() << std::endl;
return 1;
}
}

49
src/modules/battery.cpp 100644
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#include "modules/battery.hpp"
waybar::modules::Battery::Battery()
{
try {
for (auto &node : fs::directory_iterator(_data_dir)) {
if (fs::is_directory(node) && fs::exists(node / "charge_now") &&
fs::exists(node / "charge_full")) {
_batteries.push_back(node);
}
}
} catch (fs::filesystem_error &e) {
std::cerr << e.what() << std::endl;
}
_label.get_style_context()->add_class("battery-status");
_thread = [this] {
update();
_thread.sleep_for(chrono::minutes(1));
};
}
auto waybar::modules::Battery::update() -> void
{
try {
for (auto &bat : _batteries) {
int full, now;
std::string status;
std::ifstream(bat / "charge_now") >> now;
std::ifstream(bat / "charge_full") >> full;
std::ifstream(bat / "status") >> status;
if (status == "Charging") {
_label.get_style_context()->add_class("battery-charging");
} else {
_label.get_style_context()->remove_class("battery-charging");
}
int pct = float(now) / float(full) * 100.f;
_label.set_text_with_mnemonic(fmt::format("{}% {}", pct, ""));
}
} catch (std::exception &e) {
std::cerr << e.what() << std::endl;
}
}
waybar::modules::Battery::operator Gtk::Widget &()
{
return _label;
}

20
src/modules/clock.cpp 100644
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#include "modules/clock.hpp"
waybar::modules::Clock::Clock()
{
_label.get_style_context()->add_class("clock-widget");
_thread = [this] {
auto now = waybar::chrono::clock::now();
auto t = std::time(nullptr);
auto localtime = std::localtime(&t);
_label.set_text(
fmt::format("{:02}:{:02}", localtime->tm_hour, localtime->tm_min));
auto timeout =
std::chrono::floor<std::chrono::minutes>(now + std::chrono::minutes(1));
_thread.sleep_until(timeout);
};
};
waybar::modules::Clock::operator Gtk::Widget &() {
return _label;
}

83
src/modules/workspaces.cpp 100644
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#include "modules/workspaces.hpp"
#include "ipc/client.hpp"
waybar::modules::WorkspaceSelector::WorkspaceSelector(Bar &bar)
: _bar(bar), _box(Gtk::manage(new Gtk::Box))
{
_box->get_style_context()->add_class("workspace-selector");
std::string socketPath = get_socketpath();
_ipcSocketfd = ipc_open_socket(socketPath);
_ipcEventSocketfd = ipc_open_socket(socketPath);
const char *subscribe = "[ \"workspace\", \"mode\" ]";
uint32_t len = strlen(subscribe);
ipc_single_command(_ipcEventSocketfd, IPC_SUBSCRIBE, subscribe, &len);
_thread = [this] {
update();
};
}
auto waybar::modules::WorkspaceSelector::update() -> void
{
Json::Value workspaces = _getWorkspaces();
for (auto it = _buttons.begin(); it != _buttons.end(); ++it) {
auto ws = std::find_if(workspaces.begin(), workspaces.end(),
[it](auto node) -> bool { return node["num"].asInt() == it->first; });
if (ws == workspaces.end()) {
it->second.hide();
}
}
for (auto node : workspaces) {
auto it = _buttons.find(node["num"].asInt());
if (it == _buttons.end()) {
_addWorkspace(node);
} else {
auto styleContext = it->second.get_style_context();
bool isCurrent = node["focused"].asBool();
if (styleContext->has_class("current") && !isCurrent) {
styleContext->remove_class("current");
} else if (!styleContext->has_class("current") && isCurrent) {
styleContext->add_class("current");
}
it->second.show();
}
}
}
void waybar::modules::WorkspaceSelector::_addWorkspace(Json::Value node)
{
auto pair = _buttons.emplace(node["num"].asInt(), node["name"].asString());
auto &button = pair.first->second;
button.set_relief(Gtk::RELIEF_NONE);
button.signal_clicked().connect([this, pair] {
auto value = fmt::format("workspace \"{}\"", pair.first->first);
uint32_t size = value.size();
ipc_single_command(_ipcSocketfd, IPC_COMMAND, value.c_str(), &size);
});
_box->pack_start(button, false, false, 0);
if (node["focused"].asBool()) {
button.get_style_context()->add_class("current");
}
button.show();
}
Json::Value waybar::modules::WorkspaceSelector::_getWorkspaces()
{
uint32_t len = 0;
Json::Value root;
Json::CharReaderBuilder builder;
Json::CharReader* reader = builder.newCharReader();
std::string err;
std::string str = ipc_single_command(_ipcSocketfd, IPC_GET_WORKSPACES,
nullptr, &len);
bool res = reader->parse(str.c_str(), str.c_str() + str.size(), &root, &err);
delete reader;
if (!res) {
std::cerr << err << std::endl;
return nullptr;
}
return root;
}
waybar::modules::WorkspaceSelector::operator Gtk::Widget &() {
return *_box;
}

10
subprojects/fmtlib.wrap 100644
View File

@ -0,0 +1,10 @@
[wrap-file]
directory = fmt-4.1.0
source_url = https://github.com/fmtlib/fmt/archive/4.1.0.tar.gz
source_filename = fmt-4.1.0.tar.gz
source_hash = 46628a2f068d0e33c716be0ed9dcae4370242df135aed663a180b9fd8e36733d
patch_url = https://wrapdb.mesonbuild.com/v1/projects/fmt/4.1.0/1/get_zip
patch_filename = fmt-4.1.0-1-wrap.zip
patch_hash = 741931f01e558491724fc1c67bff996d1df79c0277626fc463de138052c9ecc0