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340 lines (297 loc) · 11.7 KB
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#include "AModule.hpp"
#include <fmt/core.h>
#include <fmt/format.h>
#include <spdlog/spdlog.h>
#include <util/command.hpp>
#include "gdk/gdk.h"
#include "gdkmm/cursor.h"
namespace waybar {
AModule::AModule(const Json::Value& config, const std::string& name, const std::string& id,
bool enable_click, bool enable_scroll)
: name_(name),
config_(config),
isTooltip{config_["tooltip"].isBool() ? config_["tooltip"].asBool() : true},
isExpand{config_["expand"].isBool() ? config_["expand"].asBool() : false},
distance_scrolled_y_(0.0),
distance_scrolled_x_(0.0),
cursor_timeout_conn_() {
// Configure module action Map
const Json::Value actions{config_["actions"]};
disable_on_sleep_ =
config_["disable-on-sleep"].isBool() ? config_["disable-on-sleep"].asBool() : false;
for (Json::Value::const_iterator it = actions.begin(); it != actions.end(); ++it) {
if (it.key().isString() && it->isString())
if (!eventActionMap_.contains(it.key().asString())) {
eventActionMap_.insert({it.key().asString(), it->asString()});
enable_click = true;
enable_scroll = true;
} else
spdlog::warn("Duplicate action is ignored: {0}", it.key().asString());
else
spdlog::warn("Wrong actions section configuration. See config by index: {}", it.index());
}
event_box_.signal_enter_notify_event().connect(sigc::mem_fun(*this, &AModule::handleMouseEnter));
event_box_.signal_leave_notify_event().connect(sigc::mem_fun(*this, &AModule::handleMouseLeave));
// configure events' user commands
// hasUserEvents is true if any element from eventMap_ is satisfying the condition in the lambda
bool hasUserEvents =
std::find_if(eventMap_.cbegin(), eventMap_.cend(), [&config](const auto& eventEntry) {
// True if there is any non-release type event
return eventEntry.first.second != GdkEventType::GDK_BUTTON_RELEASE &&
(config[eventEntry.second].isString() || config[eventEntry.second].isBool());
}) != eventMap_.cend();
if (enable_click || hasUserEvents) {
hasUserEvents_ = true;
event_box_.add_events(Gdk::BUTTON_PRESS_MASK);
event_box_.signal_button_press_event().connect(sigc::mem_fun(*this, &AModule::handleToggle));
} else {
hasUserEvents_ = false;
}
bool hasReleaseEvent =
std::find_if(eventMap_.cbegin(), eventMap_.cend(), [&config](const auto& eventEntry) {
// True if there is any non-release type event
return eventEntry.first.second == GdkEventType::GDK_BUTTON_RELEASE &&
config[eventEntry.second].isString();
}) != eventMap_.cend();
if (hasReleaseEvent) {
event_box_.add_events(Gdk::BUTTON_RELEASE_MASK);
event_box_.signal_button_release_event().connect(sigc::mem_fun(*this, &AModule::handleRelease));
}
if (config_["on-scroll-up"].isString() || config_["on-scroll-down"].isString() ||
config_["on-scroll-left"].isString() || config_["on-scroll-right"].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));
}
// Respect user configuration of cursor
if (config_.isMember("cursor")) {
if (config_["cursor"].isBool()) {
if (config_["cursor"].asBool()) {
setCursor("pointer");
} else {
setCursor("default");
}
} else if (config_["cursor"].isString()) {
setCursor(config_["cursor"].asString());
} else if (config_["cursor"].isInt() || config_["cursor"].isUInt()) {
// Backward-compat: legacy numeric Gdk::CursorType values (pre-0.16)
setCursor(Gdk::CursorType(config_["cursor"].asInt()));
spdlog::warn(
"Numeric 'cursor' values are deprecated; use a cursor-shape-v1 name string instead "
"(module {})",
name_);
} else {
spdlog::warn("unknown cursor option configured on module {}", name_);
}
}
}
AModule::~AModule() {
if (cursor_timeout_conn_.connected()) {
cursor_timeout_conn_.disconnect();
}
for (const auto& pid : pid_children_) {
if (pid != -1) {
killpg(pid, SIGTERM);
}
}
if (menu_ != nullptr) {
g_object_unref(menu_);
menu_ = nullptr;
}
}
auto AModule::update() -> void {
// Run user-provided update handler if configured
if (config_["on-update"].isString()) {
pid_children_.push_back(util::command::forkExec(config_["on-update"].asString()));
}
signal_updated.emit(this);
}
// Get mapping between event name and module action name
// Then call overridden 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 overridden action if derived class has implemented it
if (recA != eventActionMap_.cend() && name != recA->second) this->doAction(recA->second);
}
}
void AModule::setCursor(std::string const& c) {
auto gdk_window = event_box_.get_window();
if (gdk_window) {
auto cursor = Gdk::Cursor::create(gdk_window->get_display(), c);
gdk_window->set_cursor(cursor);
} else {
// window may not be accessible yet, in this case,
// schedule another call for setting the cursor in 1 sec
cursor_timeout_conn_ = Glib::signal_timeout().connect_seconds(
[this, c]() {
setCursor(c);
return false;
},
1);
}
}
// Backward-compat overload: honor legacy numeric Gdk::CursorType configs (pre-0.16)
void AModule::setCursor(Gdk::CursorType const& c) {
auto gdk_window = event_box_.get_window();
if (gdk_window) {
auto cursor = Gdk::Cursor::create(gdk_window->get_display(), c);
gdk_window->set_cursor(cursor);
} else {
// window may not be accessible yet, in this case,
// schedule another call for setting the cursor in 1 sec
cursor_timeout_conn_ = Glib::signal_timeout().connect_seconds(
[this, c]() {
setCursor(c);
return false;
},
1);
}
}
bool AModule::handleMouseEnter(GdkEventCrossing* const& e) {
if (auto* module = event_box_.get_child(); module != nullptr) {
module->set_state_flags(Gtk::StateFlags::STATE_FLAG_PRELIGHT);
}
// Default behavior indicating event availability
if (hasUserEvents_ && !config_.isMember("cursor")) {
setCursor("pointer");
}
return false;
}
bool AModule::handleMouseLeave(GdkEventCrossing* const& e) {
if (auto* module = event_box_.get_child(); module != nullptr) {
module->unset_state_flags(Gtk::StateFlags::STATE_FLAG_PRELIGHT);
}
// Default behavior indicating event availability
if (hasUserEvents_ && !config_.isMember("cursor")) {
setCursor("default");
}
return false;
}
bool AModule::handleToggle(GdkEventButton* const& e) { return handleUserEvent(e); }
bool AModule::handleRelease(GdkEventButton* const& e) { return handleUserEvent(e); }
bool AModule::handleUserEvent(GdkEventButton* const& e) {
std::string format{};
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;
}
// Check that a menu has been configured
if (rec != eventMap_.cend() && config_["menu"].isString()) {
// Check if the event is the one specified for the "menu" option
if (rec->second == config_["menu"].asString() && menu_ != nullptr) {
// Popup the menu
gtk_widget_show_all(GTK_WIDGET(menu_));
gtk_menu_popup_at_pointer(GTK_MENU(menu_), reinterpret_cast<GdkEvent*>(e));
// Manually reset prelight to make sure the module doesn't stay in a hover state
if (auto* module = event_box_.get_child(); module != nullptr) {
module->unset_state_flags(Gtk::StateFlags::STATE_FLAG_PRELIGHT);
}
}
}
// Second call user scripts
if (!format.empty()) {
// If the configured value for this event is a recognized built-in module
// action (registered in eventActionMap_), it has already been dispatched
// via doAction() above / handled by the module itself. Don't additionally
// run it as a shell command (issue #3284). Any other value is still treated
// as a user shell command.
const auto actionIt = eventActionMap_.find(format);
const bool isModuleAction = actionIt != eventActionMap_.cend() && config_[format].isString() &&
config_[format].asString() == actionIt->second;
if (isModuleAction || !config_[format].isString())
format.clear();
else
format = config_[format].asString();
}
if (!format.empty()) {
const int width = gdk_window_get_width(e->window);
const int height = gdk_window_get_height(e->window);
const std::string cmd =
fmt::format(fmt::runtime(format), fmt::arg("x", (int)round(100. * e->x / width)),
fmt::arg("y", (int)round(100. * e->y / height)));
pid_children_.push_back(util::command::forkExec(cmd));
}
dp.emit();
return true;
}
AModule::SCROLL_DIR AModule::getScrollDir(GdkEventScroll* e) {
// only affects up/down
bool reverse = config_["reverse-scrolling"].asBool();
bool reverse_mouse = config_["reverse-mouse-scrolling"].asBool();
// ignore reverse-scrolling if event comes from a mouse wheel
GdkDevice* device = gdk_event_get_source_device((GdkEvent*)e);
if (device != nullptr && gdk_device_get_source(device) == GDK_SOURCE_MOUSE) {
reverse = reverse_mouse;
}
switch (e->direction) {
case GDK_SCROLL_UP:
return reverse ? SCROLL_DIR::DOWN : SCROLL_DIR::UP;
case GDK_SCROLL_DOWN:
return reverse ? SCROLL_DIR::UP : 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;
gdouble threshold = 0;
if (config_["smooth-scrolling-threshold"].isNumeric()) {
threshold = config_["smooth-scrolling-threshold"].asDouble();
}
if (distance_scrolled_y_ < -threshold) {
dir = reverse ? SCROLL_DIR::DOWN : SCROLL_DIR::UP;
} else if (distance_scrolled_y_ > threshold) {
dir = reverse ? SCROLL_DIR::UP : SCROLL_DIR::DOWN;
} else if (distance_scrolled_x_ > threshold) {
dir = SCROLL_DIR::RIGHT;
} else if (distance_scrolled_x_ < -threshold) {
dir = SCROLL_DIR::LEFT;
}
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;
}
// Silence -Wreturn-type:
default:
return SCROLL_DIR::NONE;
}
}
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";
else if (dir == SCROLL_DIR::LEFT)
eventName = "on-scroll-left";
else if (dir == SCROLL_DIR::RIGHT)
eventName = "on-scroll-right";
// First call module actions
this->AModule::doAction(eventName);
// Second call user scripts
if (config_[eventName].isString())
pid_children_.push_back(util::command::forkExec(config_[eventName].asString()));
dp.emit();
return true;
}
bool AModule::tooltipEnabled() const { return isTooltip; }
bool AModule::expandEnabled() const { return isExpand; }
AModule::operator Gtk::Widget&() { return event_box_; }
} // namespace waybar