waybar/src/AModule.cpp

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#include "AModule.hpp"
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#include <fmt/format.h>
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#include <util/command.hpp>
namespace waybar {
AModule::AModule(const Json::Value& config, const std::string& name, const std::string& id,
bool enable_click, bool enable_scroll)
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: name_(std::move(name)),
config_(std::move(config)),
distance_scrolled_y_(0.0),
distance_scrolled_x_(0.0) {
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// configure events' user commands
if (enable_click) {
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event_box_.add_events(Gdk::BUTTON_PRESS_MASK);
event_box_.signal_button_press_event().connect(sigc::mem_fun(*this, &AModule::handleToggle));
} else {
std::map<std::pair<uint, GdkEventType>, std::string>::const_iterator it{eventMap_.cbegin()};
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while (it != eventMap_.cend()) {
if (config_[it->second].isString()) {
event_box_.add_events(Gdk::BUTTON_PRESS_MASK);
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event_box_.signal_button_press_event().connect(
sigc::mem_fun(*this, &AModule::handleToggle));
break;
}
++it;
}
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}
if (config_["on-scroll-up"].isString() || config_["on-scroll-down"].isString() || enable_scroll) {
event_box_.add_events(Gdk::SCROLL_MASK | Gdk::SMOOTH_SCROLL_MASK);
event_box_.signal_scroll_event().connect(sigc::mem_fun(*this, &AModule::handleScroll));
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}
// Configure module action Map
const Json::Value actions{config_["actions"]};
for (Json::Value::const_iterator it = actions.begin(); it != actions.end(); ++it) {
if (it.key().isString() && it->isString())
if (eventActionMap_.count(it.key().asString()) == 0)
eventActionMap_.insert({it.key().asString(), it->asString()});
else
spdlog::warn("Dublicate action is ignored: {0}", it.key().asString());
else
spdlog::warn("Wrong actions section configuration. See config by index: {}", it.index());
}
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}
AModule::~AModule() {
for (const auto& pid : pid_) {
if (pid != -1) {
killpg(pid, SIGTERM);
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}
}
}
auto AModule::update() -> void {
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// Run user-provided update handler if configured
if (config_["on-update"].isString()) {
pid_.push_back(util::command::forkExec(config_["on-update"].asString()));
}
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}
// Get mapping between event name and module action name
// Then call overrided doAction in order to call appropriate module action
auto AModule::doAction(const std::string& name) -> void {
if (!name.empty()) {
const std::map<std::string, std::string>::const_iterator& recA{eventActionMap_.find(name)};
// Call overrided action if derrived class has implemented it
if (recA != eventActionMap_.cend() && name != recA->second) this->doAction(recA->second);
}
}
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bool AModule::handleToggle(GdkEventButton* const& e) {
std::string format{};
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const std::map<std::pair<uint, GdkEventType>, std::string>::const_iterator& rec{
eventMap_.find(std::pair(e->button, e->type))};
if (rec != eventMap_.cend()) {
// First call module actions
this->AModule::doAction(rec->second);
format = rec->second;
}
// Second call user scripts
if (!format.empty()) {
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if (config_[format].isString())
format = config_[format].asString();
else
format.clear();
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}
if (!format.empty()) {
pid_.push_back(util::command::forkExec(format));
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}
dp.emit();
return true;
}
AModule::SCROLL_DIR AModule::getScrollDir(GdkEventScroll* e) {
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switch (e->direction) {
case GDK_SCROLL_UP:
return SCROLL_DIR::UP;
case GDK_SCROLL_DOWN:
return SCROLL_DIR::DOWN;
case GDK_SCROLL_LEFT:
return SCROLL_DIR::LEFT;
case GDK_SCROLL_RIGHT:
return SCROLL_DIR::RIGHT;
case GDK_SCROLL_SMOOTH: {
SCROLL_DIR dir{SCROLL_DIR::NONE};
distance_scrolled_y_ += e->delta_y;
distance_scrolled_x_ += e->delta_x;
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gdouble threshold = 0;
if (config_["smooth-scrolling-threshold"].isNumeric()) {
threshold = config_["smooth-scrolling-threshold"].asDouble();
}
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if (distance_scrolled_y_ < -threshold) {
dir = SCROLL_DIR::UP;
} else if (distance_scrolled_y_ > threshold) {
dir = SCROLL_DIR::DOWN;
} else if (distance_scrolled_x_ > threshold) {
dir = SCROLL_DIR::RIGHT;
} else if (distance_scrolled_x_ < -threshold) {
dir = SCROLL_DIR::LEFT;
}
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switch (dir) {
case SCROLL_DIR::UP:
case SCROLL_DIR::DOWN:
distance_scrolled_y_ = 0;
break;
case SCROLL_DIR::LEFT:
case SCROLL_DIR::RIGHT:
distance_scrolled_x_ = 0;
break;
case SCROLL_DIR::NONE:
break;
}
return dir;
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}
// Silence -Wreturn-type:
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default:
return SCROLL_DIR::NONE;
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}
}
bool AModule::handleScroll(GdkEventScroll* e) {
auto dir = getScrollDir(e);
std::string eventName{};
if (dir == SCROLL_DIR::UP)
eventName = "on-scroll-up";
else if (dir == SCROLL_DIR::DOWN)
eventName = "on-scroll-down";
// First call module actions
this->AModule::doAction(eventName);
// Second call user scripts
if (config_[eventName].isString())
pid_.push_back(util::command::forkExec(config_[eventName].asString()));
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dp.emit();
return true;
}
bool AModule::tooltipEnabled() {
return config_["tooltip"].isBool() ? config_["tooltip"].asBool() : true;
}
AModule::operator Gtk::Widget&() { return event_box_; }
} // namespace waybar