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refactor(client): use std::list<waybar_output> to store outputs

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std::unique_ptr is not required here as the only benefit it gives is
stability of address on vector resize and it's easy to invalidate it
accidentaly. std::list provides the same guarantee of stable addresses
of the elements and correct destruction while avoiding smart pointer
overhead.

Also fixes #554, caused by incorrect usage of std::remove_if.
This commit is contained in:
Aleksei Bavshin 2020-01-13 23:27:57 -08:00
parent b9cd51a9cc
commit f80270519b
No known key found for this signature in database
GPG Key ID: 4F071603387A382A
2 changed files with 27 additions and 31 deletions
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10
include/client.hpp
View File

@ -30,12 +30,12 @@ class Client {
const std::string &style) const; const std::string &style) const;
void bindInterfaces(); void bindInterfaces();
const std::string getValidPath(const std::vector<std::string> &paths) const; const std::string getValidPath(const std::vector<std::string> &paths) const;
void handleOutput(std::unique_ptr<struct waybar_output> &output); void handleOutput(struct waybar_output &output);
bool isValidOutput(const Json::Value &config, std::unique_ptr<struct waybar_output> &output); bool isValidOutput(const Json::Value &config, struct waybar_output &output);
auto setupConfig(const std::string &config_file) -> void; auto setupConfig(const std::string &config_file) -> void;
auto setupCss(const std::string &css_file) -> void; auto setupCss(const std::string &css_file) -> void;
std::unique_ptr<struct waybar_output> &getOutput(void *); struct waybar_output &getOutput(void *);
std::vector<Json::Value> getOutputConfigs(std::unique_ptr<struct waybar_output> &output); std::vector<Json::Value> getOutputConfigs(struct waybar_output &output);
static void handleGlobal(void *data, struct wl_registry *registry, uint32_t name, static void handleGlobal(void *data, struct wl_registry *registry, uint32_t name,
const char *interface, uint32_t version); const char *interface, uint32_t version);
@ -47,7 +47,7 @@ class Client {
Json::Value config_; Json::Value config_;
Glib::RefPtr<Gtk::StyleContext> style_context_; Glib::RefPtr<Gtk::StyleContext> style_context_;
Glib::RefPtr<Gtk::CssProvider> css_provider_; Glib::RefPtr<Gtk::CssProvider> css_provider_;
std::vector<std::unique_ptr<struct waybar_output>> outputs_; std::list<struct waybar_output> outputs_;
}; };
} // namespace waybar } // namespace waybar

42
src/client.cpp
View File

@ -49,7 +49,7 @@ void waybar::Client::handleGlobalRemove(void * data, struct wl_registry * /*re
// Nothing here // Nothing here
} }
void waybar::Client::handleOutput(std::unique_ptr<struct waybar_output> &output) { void waybar::Client::handleOutput(struct waybar_output &output) {
static const struct zxdg_output_v1_listener xdgOutputListener = { static const struct zxdg_output_v1_listener xdgOutputListener = {
.logical_position = [](void *, struct zxdg_output_v1 *, int32_t, int32_t) {}, .logical_position = [](void *, struct zxdg_output_v1 *, int32_t, int32_t) {},
.logical_size = [](void *, struct zxdg_output_v1 *, int32_t, int32_t) {}, .logical_size = [](void *, struct zxdg_output_v1 *, int32_t, int32_t) {},
@ -58,42 +58,39 @@ void waybar::Client::handleOutput(std::unique_ptr<struct waybar_output> &output)
.description = [](void *, struct zxdg_output_v1 *, const char *) {}, .description = [](void *, struct zxdg_output_v1 *, const char *) {},
}; };
// owned by output->monitor; no need to destroy // owned by output->monitor; no need to destroy
auto wl_output = gdk_wayland_monitor_get_wl_output(output->monitor->gobj()); auto wl_output = gdk_wayland_monitor_get_wl_output(output.monitor->gobj());
output->xdg_output.reset(zxdg_output_manager_v1_get_xdg_output(xdg_output_manager, wl_output)); output.xdg_output.reset(zxdg_output_manager_v1_get_xdg_output(xdg_output_manager, wl_output));
zxdg_output_v1_add_listener(output->xdg_output.get(), &xdgOutputListener, output.get()); zxdg_output_v1_add_listener(output.xdg_output.get(), &xdgOutputListener, &output);
} }
bool waybar::Client::isValidOutput(const Json::Value & config, bool waybar::Client::isValidOutput(const Json::Value &config, struct waybar_output &output) {
std::unique_ptr<struct waybar_output> &output) {
bool found = true; bool found = true;
if (config["output"].isArray()) { if (config["output"].isArray()) {
bool in_array = false; bool in_array = false;
for (auto const &output_conf : config["output"]) { for (auto const &output_conf : config["output"]) {
if (output_conf.isString() && output_conf.asString() == output->name) { if (output_conf.isString() && output_conf.asString() == output.name) {
in_array = true; in_array = true;
break; break;
} }
} }
found = in_array; found = in_array;
} }
if (config["output"].isString() && config["output"].asString() != output->name) { if (config["output"].isString() && config["output"].asString() != output.name) {
found = false; found = false;
} }
return found; return found;
} }
std::unique_ptr<struct waybar::waybar_output> &waybar::Client::getOutput(void *addr) { struct waybar::waybar_output &waybar::Client::getOutput(void *addr) {
auto it = std::find_if(outputs_.begin(), outputs_.end(), [&addr](const auto &output) { auto it = std::find_if(
return output.get() == addr; outputs_.begin(), outputs_.end(), [&addr](const auto &output) { return &output == addr; });
});
if (it == outputs_.end()) { if (it == outputs_.end()) {
throw std::runtime_error("Unable to find valid output"); throw std::runtime_error("Unable to find valid output");
} }
return *it; return *it;
} }
std::vector<Json::Value> waybar::Client::getOutputConfigs( std::vector<Json::Value> waybar::Client::getOutputConfigs(struct waybar_output &output) {
std::unique_ptr<struct waybar_output> &output) {
std::vector<Json::Value> configs; std::vector<Json::Value> configs;
if (config_.isArray()) { if (config_.isArray()) {
for (auto const &config : config_) { for (auto const &config : config_) {
@ -112,18 +109,18 @@ void waybar::Client::handleOutputName(void * data, struct zxdg_output_v1 *
auto client = waybar::Client::inst(); auto client = waybar::Client::inst();
try { try {
auto &output = client->getOutput(data); auto &output = client->getOutput(data);
output->name = name; output.name = name;
spdlog::debug("Output detected: {} ({} {})", spdlog::debug("Output detected: {} ({} {})",
name, name,
output->monitor->get_manufacturer(), output.monitor->get_manufacturer(),
output->monitor->get_model()); output.monitor->get_model());
auto configs = client->getOutputConfigs(output); auto configs = client->getOutputConfigs(output);
if (configs.empty()) { if (configs.empty()) {
output->xdg_output.reset(); output.xdg_output.reset();
} else { } else {
wl_display_roundtrip(client->wl_display); wl_display_roundtrip(client->wl_display);
for (const auto &config : configs) { for (const auto &config : configs) {
client->bars.emplace_back(std::make_unique<Bar>(output.get(), config)); client->bars.emplace_back(std::make_unique<Bar>(&output, config));
Glib::RefPtr<Gdk::Screen> screen = client->bars.back()->window.get_screen(); Glib::RefPtr<Gdk::Screen> screen = client->bars.back()->window.get_screen();
client->style_context_->add_provider_for_screen( client->style_context_->add_provider_for_screen(
screen, client->css_provider_, GTK_STYLE_PROVIDER_PRIORITY_USER); screen, client->css_provider_, GTK_STYLE_PROVIDER_PRIORITY_USER);
@ -135,7 +132,8 @@ void waybar::Client::handleOutputName(void * data, struct zxdg_output_v1 *
} }
void waybar::Client::handleMonitorAdded(Glib::RefPtr<Gdk::Monitor> monitor) { void waybar::Client::handleMonitorAdded(Glib::RefPtr<Gdk::Monitor> monitor) {
auto &output = outputs_.emplace_back(new struct waybar_output({monitor})); auto &output = outputs_.emplace_back();
output.monitor = monitor;
handleOutput(output); handleOutput(output);
} }
@ -151,9 +149,7 @@ void waybar::Client::handleMonitorRemoved(Glib::RefPtr<Gdk::Monitor> monitor) {
++it; ++it;
} }
} }
std::remove_if(outputs_.begin(), outputs_.end(), [&monitor](const auto &output) { outputs_.remove_if([&monitor](const auto &output) { return output.monitor == monitor; });
return output->monitor == monitor;
});
} }
std::tuple<const std::string, const std::string> waybar::Client::getConfigs( std::tuple<const std::string, const std::string> waybar::Client::getConfigs(