Waybar/src/bar.cpp

468 lines
17 KiB
C++

#ifdef HAVE_GTK_LAYER_SHELL
#include <gtk-layer-shell.h>
#endif
#include <spdlog/spdlog.h>
#include "bar.hpp"
#include "client.hpp"
#include "factory.hpp"
waybar::Bar::Bar(struct waybar_output* w_output, const Json::Value& w_config)
: output(w_output),
config(w_config),
surface(nullptr),
window{Gtk::WindowType::WINDOW_TOPLEVEL},
layer_surface_(nullptr),
anchor_(ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP),
left_(Gtk::ORIENTATION_HORIZONTAL, 0),
center_(Gtk::ORIENTATION_HORIZONTAL, 0),
right_(Gtk::ORIENTATION_HORIZONTAL, 0),
box_(Gtk::ORIENTATION_HORIZONTAL, 0) {
window.set_title("waybar");
window.set_name("waybar");
window.set_decorated(false);
window.get_style_context()->add_class(output->name);
window.get_style_context()->add_class(config["name"].asString());
window.get_style_context()->add_class(config["position"].asString());
left_.get_style_context()->add_class("modules-left");
center_.get_style_context()->add_class("modules-center");
right_.get_style_context()->add_class("modules-right");
if (config["position"] == "right" || config["position"] == "left") {
height_ = 0;
width_ = 1;
}
height_ = config["height"].isUInt() ? config["height"].asUInt() : height_;
width_ = config["width"].isUInt() ? config["width"].asUInt() : width_;
if (config["position"] == "bottom") {
anchor_ = ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM;
} else if (config["position"] == "left") {
anchor_ = ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT;
} else if (config["position"] == "right") {
anchor_ = ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT;
}
if (anchor_ == ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM ||
anchor_ == ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP) {
anchor_ |= ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT | ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT;
} else if (anchor_ == ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT ||
anchor_ == ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT) {
anchor_ |= ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP | ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM;
left_ = Gtk::Box(Gtk::ORIENTATION_VERTICAL, 0);
center_ = Gtk::Box(Gtk::ORIENTATION_VERTICAL, 0);
right_ = Gtk::Box(Gtk::ORIENTATION_VERTICAL, 0);
box_ = Gtk::Box(Gtk::ORIENTATION_VERTICAL, 0);
vertical = true;
}
if (config["margin-top"].isInt() || config["margin-right"].isInt() ||
config["margin-bottom"].isInt() || config["margin-left"].isInt()) {
margins_ = {
config["margin-top"].isInt() ? config["margin-top"].asInt() : 0,
config["margin-right"].isInt() ? config["margin-right"].asInt() : 0,
config["margin-bottom"].isInt() ? config["margin-bottom"].asInt() : 0,
config["margin-left"].isInt() ? config["margin-left"].asInt() : 0,
};
} else if (config["margin"].isString()) {
std::istringstream iss(config["margin"].asString());
std::vector<std::string> margins{std::istream_iterator<std::string>(iss), {}};
try {
if (margins.size() == 1) {
auto gaps = std::stoi(margins[0], nullptr, 10);
margins_ = {.top = gaps, .right = gaps, .bottom = gaps, .left = gaps};
}
if (margins.size() == 2) {
auto vertical_margins = std::stoi(margins[0], nullptr, 10);
auto horizontal_margins = std::stoi(margins[1], nullptr, 10);
margins_ = {.top = vertical_margins,
.right = horizontal_margins,
.bottom = vertical_margins,
.left = horizontal_margins};
}
if (margins.size() == 3) {
auto horizontal_margins = std::stoi(margins[1], nullptr, 10);
margins_ = {.top = std::stoi(margins[0], nullptr, 10),
.right = horizontal_margins,
.bottom = std::stoi(margins[2], nullptr, 10),
.left = horizontal_margins};
}
if (margins.size() == 4) {
margins_ = {.top = std::stoi(margins[0], nullptr, 10),
.right = std::stoi(margins[1], nullptr, 10),
.bottom = std::stoi(margins[2], nullptr, 10),
.left = std::stoi(margins[3], nullptr, 10)};
}
} catch (...) {
spdlog::warn("Invalid margins: {}", config["margin"].asString());
}
} else if (config["margin"].isInt()) {
auto gaps = config["margin"].asInt();
margins_ = {.top = gaps, .right = gaps, .bottom = gaps, .left = gaps};
}
#ifdef HAVE_GTK_LAYER_SHELL
use_gls_ = config["gtk-layer-shell"].isBool() ? config["gtk-layer-shell"].asBool() : true;
if (use_gls_) {
initGtkLayerShell();
window.signal_map_event().connect_notify(sigc::mem_fun(*this, &Bar::onMapGLS));
window.signal_configure_event().connect_notify(sigc::mem_fun(*this, &Bar::onConfigureGLS));
}
#endif
if (!use_gls_) {
window.signal_realize().connect_notify(sigc::mem_fun(*this, &Bar::onRealize));
window.signal_map_event().connect_notify(sigc::mem_fun(*this, &Bar::onMap));
window.signal_configure_event().connect_notify(sigc::mem_fun(*this, &Bar::onConfigure));
}
window.set_size_request(width_, height_);
setupWidgets();
if (!use_gls_ && window.get_realized()) {
onRealize();
}
window.show_all();
}
#ifdef HAVE_GTK_LAYER_SHELL
void waybar::Bar::initGtkLayerShell() {
auto gtk_window = window.gobj();
// this has to be executed before GtkWindow.realize
gtk_layer_init_for_window(gtk_window);
gtk_layer_set_keyboard_interactivity(gtk_window, FALSE);
auto layer = config["layer"] == "top" ? GTK_LAYER_SHELL_LAYER_TOP : GTK_LAYER_SHELL_LAYER_BOTTOM;
gtk_layer_set_layer(gtk_window, layer);
gtk_layer_set_monitor(gtk_window, output->monitor->gobj());
gtk_layer_set_namespace(gtk_window, "waybar");
gtk_layer_set_anchor(gtk_window,
GTK_LAYER_SHELL_EDGE_LEFT,
(anchor_ & ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT) ? TRUE : FALSE);
gtk_layer_set_anchor(gtk_window,
GTK_LAYER_SHELL_EDGE_RIGHT,
(anchor_ & ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT) ? TRUE : FALSE);
gtk_layer_set_anchor(gtk_window,
GTK_LAYER_SHELL_EDGE_TOP,
(anchor_ & ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP) ? TRUE : FALSE);
gtk_layer_set_anchor(gtk_window,
GTK_LAYER_SHELL_EDGE_BOTTOM,
(anchor_ & ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM) ? TRUE : FALSE);
gtk_layer_set_margin(gtk_window, GTK_LAYER_SHELL_EDGE_LEFT, margins_.left);
gtk_layer_set_margin(gtk_window, GTK_LAYER_SHELL_EDGE_RIGHT, margins_.right);
gtk_layer_set_margin(gtk_window, GTK_LAYER_SHELL_EDGE_TOP, margins_.top);
gtk_layer_set_margin(gtk_window, GTK_LAYER_SHELL_EDGE_BOTTOM, margins_.bottom);
setExclusiveZone(width_, height_);
}
void waybar::Bar::onConfigureGLS(GdkEventConfigure* ev) {
/*
* GTK wants new size for the window.
* Actual resizing and management of the exclusve zone is handled within the gtk-layer-shell code.
* This event handler only updates stored size of the window and prints some warnings.
*
* Note: forced resizing to a window smaller than required by GTK would not work with
* gtk-layer-shell.
*/
if (vertical) {
if (width_ > 1 && ev->width > static_cast<int>(width_)) {
spdlog::warn(MIN_WIDTH_MSG, width_, ev->width);
}
} else {
if (height_ > 1 && ev->height > static_cast<int>(height_)) {
spdlog::warn(MIN_HEIGHT_MSG, height_, ev->height);
}
}
width_ = ev->width;
height_ = ev->height;
spdlog::info(BAR_SIZE_MSG, width_, height_, output->name);
}
void waybar::Bar::onMapGLS(GdkEventAny* ev) {
/*
* Obtain a pointer to the custom layer surface for modules that require it (idle_inhibitor).
*/
auto gdk_window = window.get_window();
surface = gdk_wayland_window_get_wl_surface(gdk_window->gobj());
}
#endif
void waybar::Bar::onConfigure(GdkEventConfigure* ev) {
/*
* GTK wants new size for the window.
*
* Prefer configured size if it's non-default.
* If the size is not set and the window is smaller than requested by GTK, request resize from
* layer surface.
*/
auto tmp_height = height_;
auto tmp_width = width_;
if (ev->height > static_cast<int>(height_)) {
// Default minimal value
if (height_ > 1) {
spdlog::warn(MIN_HEIGHT_MSG, height_, ev->height);
}
if (config["height"].isUInt()) {
spdlog::info(SIZE_DEFINED, "Height");
} else {
tmp_height = ev->height;
}
}
if (ev->width > static_cast<int>(width_)) {
// Default minimal value
if (width_ > 1) {
spdlog::warn(MIN_WIDTH_MSG, width_, ev->width);
}
if (config["width"].isUInt()) {
spdlog::info(SIZE_DEFINED, "Width");
} else {
tmp_width = ev->width;
}
}
if (tmp_width != width_ || tmp_height != height_) {
setSurfaceSize(tmp_width, tmp_height);
}
}
void waybar::Bar::onRealize() {
auto gdk_window = window.get_window()->gobj();
gdk_wayland_window_set_use_custom_surface(gdk_window);
}
void waybar::Bar::onMap(GdkEventAny* ev) {
auto gdk_window = window.get_window()->gobj();
surface = gdk_wayland_window_get_wl_surface(gdk_window);
auto client = waybar::Client::inst();
// owned by output->monitor; no need to destroy
auto wl_output = gdk_wayland_monitor_get_wl_output(output->monitor->gobj());
auto layer =
config["layer"] == "top" ? ZWLR_LAYER_SHELL_V1_LAYER_TOP : ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM;
layer_surface_ = zwlr_layer_shell_v1_get_layer_surface(
client->layer_shell, surface, wl_output, layer, "waybar");
zwlr_layer_surface_v1_set_keyboard_interactivity(layer_surface_, false);
zwlr_layer_surface_v1_set_anchor(layer_surface_, anchor_);
zwlr_layer_surface_v1_set_margin(
layer_surface_, margins_.top, margins_.right, margins_.bottom, margins_.left);
setSurfaceSize(width_, height_);
setExclusiveZone(width_, height_);
static const struct zwlr_layer_surface_v1_listener layer_surface_listener = {
.configure = layerSurfaceHandleConfigure,
.closed = layerSurfaceHandleClosed,
};
zwlr_layer_surface_v1_add_listener(layer_surface_, &layer_surface_listener, this);
wl_surface_commit(surface);
wl_display_roundtrip(client->wl_display);
}
void waybar::Bar::setExclusiveZone(uint32_t width, uint32_t height) {
#ifdef HAVE_GTK_LAYER_SHELL
if (use_gls_) {
if (visible) {
spdlog::debug("Enable auto exclusive zone for output {}", output->name);
gtk_layer_auto_exclusive_zone_enable(window.gobj());
} else {
spdlog::debug("Disable exclusive zone for output {}", output->name);
gtk_layer_set_exclusive_zone(window.gobj(), 0);
}
} else
#endif
{
auto zone = 0;
if (visible) {
// exclusive zone already includes margin for anchored edge,
// only opposite margin should be added
if (vertical) {
zone += width;
zone += (anchor_ & ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT) ? margins_.right : margins_.left;
} else {
zone += height;
zone += (anchor_ & ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP) ? margins_.bottom : margins_.top;
}
}
spdlog::debug("Set exclusive zone {} for output {}", zone, output->name);
zwlr_layer_surface_v1_set_exclusive_zone(layer_surface_, zone);
}
}
void waybar::Bar::setSurfaceSize(uint32_t width, uint32_t height) {
/* If the client is anchored to two opposite edges, layer_surface.configure will return
* size without margins for the axis.
* layer_surface.set_size, however, expects size with margins for the anchored axis.
* This is not specified by wlr-layer-shell and based on actual behavior of sway.
*/
if (vertical && height > 1) {
height += margins_.top + margins_.bottom;
}
if (!vertical && width > 1) {
width += margins_.right + margins_.left;
}
spdlog::debug("Set surface size {}x{} for output {}", width, height, output->name);
zwlr_layer_surface_v1_set_size(layer_surface_, width, height);
}
// Converting string to button code rn as to avoid doing it later
void waybar::Bar::setupAltFormatKeyForModule(const std::string& module_name) {
if (config.isMember(module_name)) {
Json::Value& module = config[module_name];
if (module.isMember("format-alt")) {
if (module.isMember("format-alt-click")) {
Json::Value& click = module["format-alt-click"];
if (click.isString()) {
if (click == "click-right") {
module["format-alt-click"] = 3U;
} else if (click == "click-middle") {
module["format-alt-click"] = 2U;
} else if (click == "click-backward") {
module["format-alt-click"] = 8U;
} else if (click == "click-forward") {
module["format-alt-click"] = 9U;
} else {
module["format-alt-click"] = 1U; // default click-left
}
} else {
module["format-alt-click"] = 1U;
}
} else {
module["format-alt-click"] = 1U;
}
}
}
}
void waybar::Bar::setupAltFormatKeyForModuleList(const char* module_list_name) {
if (config.isMember(module_list_name)) {
Json::Value& modules = config[module_list_name];
for (const Json::Value& module_name : modules) {
if (module_name.isString()) {
setupAltFormatKeyForModule(module_name.asString());
}
}
}
}
void waybar::Bar::handleSignal(int signal) {
for (auto& module : modules_left_) {
auto* custom = dynamic_cast<waybar::modules::Custom*>(module.get());
if (custom != nullptr) {
custom->refresh(signal);
}
}
for (auto& module : modules_center_) {
auto* custom = dynamic_cast<waybar::modules::Custom*>(module.get());
if (custom != nullptr) {
custom->refresh(signal);
}
}
for (auto& module : modules_right_) {
auto* custom = dynamic_cast<waybar::modules::Custom*>(module.get());
if (custom != nullptr) {
custom->refresh(signal);
}
}
}
void waybar::Bar::layerSurfaceHandleConfigure(void* data, struct zwlr_layer_surface_v1* surface,
uint32_t serial, uint32_t width, uint32_t height) {
auto o = static_cast<waybar::Bar*>(data);
if (width != o->width_ || height != o->height_) {
o->width_ = width;
o->height_ = height;
o->window.set_size_request(o->width_, o->height_);
o->window.resize(o->width_, o->height_);
o->setExclusiveZone(width, height);
spdlog::info(BAR_SIZE_MSG,
o->width_ == 1 ? "auto" : std::to_string(o->width_),
o->height_ == 1 ? "auto" : std::to_string(o->height_),
o->output->name);
wl_surface_commit(o->surface);
}
zwlr_layer_surface_v1_ack_configure(surface, serial);
}
void waybar::Bar::layerSurfaceHandleClosed(void* data, struct zwlr_layer_surface_v1* /*surface*/) {
auto o = static_cast<waybar::Bar*>(data);
if (o->layer_surface_) {
zwlr_layer_surface_v1_destroy(o->layer_surface_);
o->layer_surface_ = nullptr;
}
o->modules_left_.clear();
o->modules_center_.clear();
o->modules_right_.clear();
}
auto waybar::Bar::toggle() -> void {
visible = !visible;
if (!visible) {
window.get_style_context()->add_class("hidden");
window.set_opacity(0);
} else {
window.get_style_context()->remove_class("hidden");
window.set_opacity(1);
}
setExclusiveZone(width_, height_);
if (!use_gls_) {
wl_surface_commit(surface);
}
}
void waybar::Bar::getModules(const Factory& factory, const std::string& pos) {
if (config[pos].isArray()) {
for (const auto& name : config[pos]) {
try {
auto module = factory.makeModule(name.asString());
if (pos == "modules-left") {
modules_left_.emplace_back(module);
}
if (pos == "modules-center") {
modules_center_.emplace_back(module);
}
if (pos == "modules-right") {
modules_right_.emplace_back(module);
}
module->dp.connect([module, &name] {
try {
module->update();
} catch (const std::exception& e) {
spdlog::error("{}: {}", name.asString(), e.what());
}
});
} catch (const std::exception& e) {
spdlog::warn("module {}: {}", name.asString(), e.what());
}
}
}
}
auto waybar::Bar::setupWidgets() -> void {
window.add(box_);
box_.pack_start(left_, false, false);
box_.set_center_widget(center_);
box_.pack_end(right_, false, false);
// Convert to button code for every module that is used.
setupAltFormatKeyForModuleList("modules-left");
setupAltFormatKeyForModuleList("modules-right");
setupAltFormatKeyForModuleList("modules-center");
Factory factory(*this, config);
getModules(factory, "modules-left");
getModules(factory, "modules-center");
getModules(factory, "modules-right");
for (auto const& module : modules_left_) {
left_.pack_start(*module, false, false);
}
for (auto const& module : modules_center_) {
center_.pack_start(*module, false, false);
}
std::reverse(modules_right_.begin(), modules_right_.end());
for (auto const& module : modules_right_) {
right_.pack_end(*module, false, false);
}
}