waybar/src/bar.cpp

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#include <condition_variable>
#include <gdk/gdkwayland.h>
#include <thread>
#include "bar.hpp"
#include "client.hpp"
#include "util/chrono.hpp"
#include "modules/clock.hpp"
#include "modules/workspaces.hpp"
#include "modules/battery.hpp"
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#include "modules/memory.hpp"
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#include "modules/cpu.hpp"
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static void handle_geometry(void *data, struct wl_output *wl_output, int32_t x,
int32_t y, int32_t physical_width, int32_t physical_height, int32_t subpixel,
const char *make, const char *model, int32_t transform)
{
// Nothing here
}
static void handle_mode(void *data, struct wl_output *wl_output, uint32_t f,
int32_t w, int32_t h, int32_t refresh)
{
auto o = reinterpret_cast<waybar::Bar *>(data);
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o->setWidth(w);
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}
static void handle_done(void *data, struct wl_output *)
{
// Nothing here
}
static void handle_scale(void *data, struct wl_output *wl_output,
int32_t factor)
{
// Nothing here
}
static const struct wl_output_listener outputListener = {
.geometry = handle_geometry,
.mode = handle_mode,
.done = handle_done,
.scale = handle_scale,
};
static void layer_surface_handle_configure(
void *data, struct zwlr_layer_surface_v1 *surface, uint32_t serial,
uint32_t width, uint32_t height)
{
auto o = reinterpret_cast<waybar::Bar *>(data);
o->window.show_all();
zwlr_layer_surface_v1_ack_configure(surface, serial);
if (o->client.height != height)
{
height = o->client.height;
std::cout << fmt::format("New Height: {}", height) << std::endl;
zwlr_layer_surface_v1_set_size(surface, width, height);
zwlr_layer_surface_v1_set_exclusive_zone(surface, o->visible ? height : 0);
wl_surface_commit(o->surface);
}
}
static void layer_surface_handle_closed(void *data,
struct zwlr_layer_surface_v1 *surface)
{
auto o = reinterpret_cast<waybar::Bar *>(data);
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zwlr_layer_surface_v1_destroy(o->layerSurface);
o->layerSurface = nullptr;
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wl_surface_destroy(o->surface);
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o->surface = nullptr;
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o->window.close();
}
static const struct zwlr_layer_surface_v1_listener layerSurfaceListener = {
.configure = layer_surface_handle_configure,
.closed = layer_surface_handle_closed,
};
waybar::Bar::Bar(Client &client, std::unique_ptr<struct wl_output *> &&p_output)
: client(client), window{Gtk::WindowType::WINDOW_TOPLEVEL},
output(std::move(p_output))
{
wl_output_add_listener(*output, &outputListener, this);
window.set_title("waybar");
window.set_decorated(false);
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_setupCss();
_setupWidgets();
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gtk_widget_realize(GTK_WIDGET(window.gobj()));
GdkWindow *gdkWindow = gtk_widget_get_window(GTK_WIDGET(window.gobj()));
gdk_wayland_window_set_use_custom_surface(gdkWindow);
surface = gdk_wayland_window_get_wl_surface(gdkWindow);
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layerSurface = zwlr_layer_shell_v1_get_layer_surface(
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client.layer_shell, surface, *output, ZWLR_LAYER_SHELL_V1_LAYER_TOP,
"waybar");
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zwlr_layer_surface_v1_set_anchor(layerSurface,
ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT | ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP |
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ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT);
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zwlr_layer_surface_v1_set_size(layerSurface, _width, client.height);
zwlr_layer_surface_v1_add_listener(layerSurface, &layerSurfaceListener,
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this);
wl_surface_commit(surface);
}
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auto waybar::Bar::_setupCss() -> void
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{
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_cssProvider = Gtk::CssProvider::create();
_styleContext = Gtk::StyleContext::create();
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// load our css file, wherever that may be hiding
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if (_cssProvider->load_from_path(client.css_file))
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{
Glib::RefPtr<Gdk::Screen> screen = window.get_screen();
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_styleContext->add_provider_for_screen(screen, _cssProvider,
GTK_STYLE_PROVIDER_PRIORITY_USER);
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}
}
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auto waybar::Bar::setWidth(int width) -> void
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{
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std::cout << fmt::format("Bar width configured: {}", width) << std::endl;
if (width == this->_width) return;
this->_width = width;
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window.set_size_request(width);
window.resize(width, client.height);
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zwlr_layer_surface_v1_set_size(layerSurface, width, 40);
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wl_surface_commit(surface);
}
auto waybar::Bar::toggle() -> void
{
visible = !visible;
auto zone = visible ? client.height : 0;
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zwlr_layer_surface_v1_set_exclusive_zone(layerSurface, zone);
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wl_surface_commit(surface);
}
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auto waybar::Bar::_setupWidgets() -> void
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{
auto &left = *Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL, 0));
auto &center = *Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL, 0));
auto &right = *Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL, 0));
auto &box1 = *Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL, 0));
window.add(box1);
box1.set_homogeneous(true);
box1.pack_start(left, true, true);
box1.pack_start(center, false, false);
box1.pack_end(right, true, true);
auto &clock = *new waybar::modules::Clock();
auto &workspace_selector = *new waybar::modules::WorkspaceSelector(*this);
auto &battery = *new waybar::modules::Battery();
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auto &memory = *new waybar::modules::Memory();
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auto &cpu = *new waybar::modules::Cpu();
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left.pack_start(workspace_selector, false, true, 0);
// center.pack_start(workspace_selector, true, false, 10);
right.pack_end(clock, false, false, 0);
right.pack_end(battery, false, false, 0);
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right.pack_end(memory, false, false, 0);
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right.pack_end(cpu, false, false, 0);
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}