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Refactor Clock: generalize multi timezones and single timezone cases 

After this refactoring:
1. Timezones parses only once on start and the we refer to saved values. All time_zone.isString() checks gone to the constructor.
2. Single timezone case handling as case of multi timezoned logic.
3. Scroll event seems more clear now.
4. Tooltip template parses on start to check if there calendar placeholder or not. To do not calculate calendar_text() if not necessary.
This commit is contained in:
Sergey Mishin 2021-10-03 16:48:21 +00:00
parent 6eb9606f23
commit 110c66dd32
No known key found for this signature in database
GPG Key ID: BFFA09D74430117B
2 changed files with 75 additions and 44 deletions
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11
include/modules/clock.hpp
View File

@ -17,6 +17,8 @@ struct waybar_time {
date::zoned_seconds ztime;
};
const std::string kCalendarPlaceholder = "calendar";
class Clock : public ALabel {
public:
Clock(const std::string&, const Json::Value&);
@ -26,18 +28,19 @@ class Clock : public ALabel {
private:
util::SleeperThread thread_;
std::locale locale_;
const date::time_zone* time_zone_;
bool fixed_time_zone_;
int time_zone_idx_;
std::vector<const date::time_zone*> time_zones_;
int current_time_zone_idx_;
date::year_month_day cached_calendar_ymd_ = date::January/1/0;
std::string cached_calendar_text_;
bool is_calendar_in_tooltip_;
bool handleScroll(GdkEventScroll* e);
auto calendar_text(const waybar_time& wtime) -> std::string;
auto weekdays_header(const date::weekday& first_dow, std::ostream& os) -> void;
auto first_day_of_week() -> date::weekday;
bool setTimeZone(Json::Value zone_name);
const date::time_zone* current_timezone();
bool is_timezone_fixed();
};
} // namespace waybar::modules

108
src/modules/clock.cpp
View File

@ -14,17 +14,51 @@
using waybar::modules::waybar_time;
waybar::modules::Clock::Clock(const std::string& id, const Json::Value& config)
: ALabel(config, "clock", id, "{:%H:%M}", 60, false, false, true), fixed_time_zone_(false) {
: ALabel(config, "clock", id, "{:%H:%M}", 60, false, false, true),
current_time_zone_idx_(0),
is_calendar_in_tooltip_(false)
{
if (config_["timezones"].isArray() && !config_["timezones"].empty()) {
time_zone_idx_ = 0;
setTimeZone(config_["timezones"][time_zone_idx_]);
for (const auto& zone_name: config_["timezones"]) {
if (!zone_name.isString() || zone_name.asString().empty()) {
time_zones_.push_back(nullptr);
continue;
}
time_zones_.push_back(
date::locate_zone(
zone_name.asString()
)
);
}
// If we parse all timezones and no one is good, add nullptr to the tmezones vector, to mark that we need to show localtime
if (!time_zones_.size()) {
time_zones_.push_back(nullptr);
}
} else {
setTimeZone(config_["timezone"]);
time_zones_.push_back(
date::locate_zone(
config_["timezone"].asString()
)
);
}
if (fixed_time_zone_) {
if (!is_timezone_fixed()) {
spdlog::warn("As using a timezone, some format args may be missing as the date library haven't got a release since 2018.");
}
// Check if we have to particular placeholder in tooltip format, to know what to calculate on update
if (config_["tooltip-format"].isString()) {
std::string trimmedFormat = config_["tooltip-format"].asString();
trimmedFormat.erase(std::remove_if(trimmedFormat.begin(),
trimmedFormat.end(),
[](unsigned char x){return std::isspace(x);}),
trimmedFormat.end());
if (trimmedFormat.find("{" + kCalendarPlaceholder + "}") != std::string::npos) {
is_calendar_in_tooltip_ = true;
}
}
if (config_["locale"].isString()) {
locale_ = std::locale(config_["locale"].asString());
} else {
@ -40,53 +74,46 @@ waybar::modules::Clock::Clock(const std::string& id, const Json::Value& config)
};
}
const date::time_zone* waybar::modules::Clock::current_timezone() {
return time_zones_[current_time_zone_idx_] ? time_zones_[current_time_zone_idx_] : date::current_zone();
}
bool waybar::modules::Clock::is_timezone_fixed() {
return time_zones_[current_time_zone_idx_] != nullptr;
}
auto waybar::modules::Clock::update() -> void {
if (!fixed_time_zone_) {
// Time zone can change. Be sure to pick that.
time_zone_ = date::current_zone();
}
auto now = std::chrono::system_clock::now();
auto time_zone = current_timezone();
auto now = std::chrono::system_clock::now();
waybar_time wtime = {locale_,
date::make_zoned(time_zone_, date::floor<std::chrono::seconds>(now))};
std::string text;
if (!fixed_time_zone_) {
date::make_zoned(time_zone, date::floor<std::chrono::seconds>(now))};
std::string text = "";
if (!is_timezone_fixed()) {
// As date dep is not fully compatible, prefer fmt
tzset();
auto localtime = fmt::localtime(std::chrono::system_clock::to_time_t(now));
text = fmt::format(format_, localtime);
label_.set_markup(text);
} else {
text = fmt::format(format_, wtime);
label_.set_markup(text);
}
label_.set_markup(text);
if (tooltipEnabled()) {
if (config_["tooltip-format"].isString()) {
const auto calendar = calendar_text(wtime);
auto tooltip_format = config_["tooltip-format"].asString();
auto tooltip_text = fmt::format(tooltip_format, wtime, fmt::arg("calendar", calendar));
label_.set_tooltip_markup(tooltip_text);
} else {
label_.set_tooltip_markup(text);
std::string calendarText = "";
if (is_calendar_in_tooltip_) {
calendarText = calendar_text(wtime);
}
auto tooltip_format = config_["tooltip-format"].asString();
text = fmt::format(tooltip_format, wtime, fmt::arg("calendar", calendarText));
}
}
label_.set_tooltip_markup(text);
// Call parent update
ALabel::update();
}
bool waybar::modules::Clock::setTimeZone(Json::Value zone_name) {
if (!zone_name.isString() || zone_name.asString().empty()) {
fixed_time_zone_ = false;
return false;
}
time_zone_ = date::locate_zone(zone_name.asString());
fixed_time_zone_ = true;
return true;
}
bool waybar::modules::Clock::handleScroll(GdkEventScroll *e) {
// defer to user commands if set
if (config_["on-scroll-up"].isString() || config_["on-scroll-down"].isString()) {
@ -97,17 +124,18 @@ bool waybar::modules::Clock::handleScroll(GdkEventScroll *e) {
if (dir != SCROLL_DIR::UP && dir != SCROLL_DIR::DOWN) {
return true;
}
if (!config_["timezones"].isArray() || config_["timezones"].empty()) {
if (time_zones_.size() == 1) {
return true;
}
auto nr_zones = config_["timezones"].size();
auto nr_zones = time_zones_.size();
if (dir == SCROLL_DIR::UP) {
size_t new_idx = time_zone_idx_ + 1;
time_zone_idx_ = new_idx == nr_zones ? 0 : new_idx;
size_t new_idx = current_time_zone_idx_ + 1;
current_time_zone_idx_ = new_idx == nr_zones ? 0 : new_idx;
} else {
time_zone_idx_ = time_zone_idx_ == 0 ? nr_zones - 1 : time_zone_idx_ - 1;
current_time_zone_idx_ = current_time_zone_idx_ == 0 ? nr_zones - 1 : current_time_zone_idx_ - 1;
}
setTimeZone(config_["timezones"][time_zone_idx_]);
update();
return true;
}