Waybar/src/modules/custom.cpp

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#include "modules/custom.hpp"
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waybar::modules::Custom::Custom(std::string name, Json::Value config)
: ALabel(std::move(config)), name_(std::move(name))
{
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if (!config_["exec"]) {
throw std::runtime_error(name_ + " has no exec path.");
}
uint32_t interval = config_["interval"] ? config_["inveral"].asUInt() : 30;
thread_ = [this, interval] {
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bool can_update = true;
if (config_["exec-if"]) {
auto res = waybar::util::command::exec(config_["exec-if"].asString());
if (res.exit_code != 0) {
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can_update = false;
}
}
if (can_update) {
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thread_.emit();
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}
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thread_.sleep_for(chrono::seconds(interval));
};
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thread_.sig_update.connect(sigc::mem_fun(*this, &Custom::update));
}
auto waybar::modules::Custom::update() -> void
{
auto res = waybar::util::command::exec(config_["exec"].asString());
// Hide label if output is empty
if (res.out.empty() || res.exit_code != 0) {
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label_.hide();
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label_.set_name("");
} else {
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label_.set_name("custom-" + name_);
auto format = config_["format"] ? config_["format"].asString() : "{}";
auto str = fmt::format(format, res.out);
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label_.set_text(str);
label_.set_tooltip_text(str);
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label_.show();
}
}