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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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[package]
name = "opal"
version = "0.1.0"
edition = "2021"
[dependencies]
gettext-rs = { version = "0.7", features = ["gettext-system"] }
gtk = { version = "0.4.8", package = "gtk4" }
[dependencies.adw]
package = "libadwaita"
version = "0.2.0-alpha.2"
features = ["v1_2"]

51
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"--socket=fallback-x11",
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"url" : "file:///var/home/axtlos/Projects"
}
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}
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Exec=opal
Icon=al.getcryst.opal
Terminal=false
Type=Application
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data/icons/hicolor/symbolic/apps/al.getcryst.opal-symbolic.svg
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data/icons/meson.build
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application_id = 'al.getcryst.opal'
scalable_dir = join_paths('hicolor', 'scalable', 'apps')
install_data(
join_paths(scalable_dir, ('@0@.svg').format(application_id)),
install_dir: join_paths(get_option('datadir'), 'icons', scalable_dir)
)
symbolic_dir = join_paths('hicolor', 'symbolic', 'apps')
install_data(
join_paths(symbolic_dir, ('@0@-symbolic.svg').format(application_id)),
install_dir: join_paths(get_option('datadir'), 'icons', symbolic_dir)
)

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data/meson.build
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desktop_file = i18n.merge_file(
input: 'al.getcryst.opal.desktop.in',
output: 'al.getcryst.opal.desktop',
type: 'desktop',
po_dir: '../po',
install: true,
install_dir: join_paths(get_option('datadir'), 'applications')
)
desktop_utils = find_program('desktop-file-validate', required: false)
if desktop_utils.found()
test('Validate desktop file', desktop_utils, args: [desktop_file])
endif
appstream_file = i18n.merge_file(
input: 'al.getcryst.opal.appdata.xml.in',
output: 'al.getcryst.opal.appdata.xml',
po_dir: '../po',
install: true,
install_dir: join_paths(get_option('datadir'), 'appdata')
)
appstream_util = find_program('appstream-util', required: false)
if appstream_util.found()
test('Validate appstream file', appstream_util, args: ['validate', appstream_file])
endif
install_data('al.getcryst.opal.gschema.xml',
install_dir: join_paths(get_option('datadir'), 'glib-2.0/schemas')
)
compile_schemas = find_program('glib-compile-schemas', required: false)
if compile_schemas.found()
test('Validate schema file',
compile_schemas,
args: ['--strict', '--dry-run', meson.current_source_dir()])
endif
subdir('icons')

20
meson.build
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project('opal', 'rust',
version: '0.1.0',
meson_version: '>= 0.59.0',
default_options: [ 'warning_level=2', 'werror=false', ],
)
i18n = import('i18n')
gnome = import('gnome')
subdir('data')
subdir('src')
subdir('po')
gnome.post_install(
glib_compile_schemas: true,
gtk_update_icon_cache: true,
update_desktop_database: true,
)

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po/LINGUAS
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po/POTFILES
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data/al.getcryst.opal.desktop.in
data/al.getcryst.opal.appdata.xml.in
data/al.getcryst.opal.gschema.xml
src/window.ui

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po/meson.build
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i18n.gettext('opal', preset: 'glib')

114
src/application.rs
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/* application.rs
*
* Copyright 2022 axtlos
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*/
use glib::clone;
use gtk::prelude::*;
use adw::subclass::prelude::*;
use gtk::{gio, glib};
use crate::config::VERSION;
use crate::OpalWindow;
mod imp {
use super::*;
#[derive(Debug, Default)]
pub struct OpalApplication {}
#[glib::object_subclass]
impl ObjectSubclass for OpalApplication {
const NAME: &'static str = "OpalApplication";
type Type = super::OpalApplication;
type ParentType = adw::Application;
}
impl ObjectImpl for OpalApplication {
fn constructed(&self, obj: &Self::Type) {
self.parent_constructed(obj);
obj.setup_gactions();
obj.set_accels_for_action("app.quit", &["<primary>q"]);
}
}
impl ApplicationImpl for OpalApplication {
// We connect to the activate callback to create a window when the application
// has been launched. Additionally, this callback notifies us when the user
// tries to launch a "second instance" of the application. When they try
// to do that, we'll just present any existing window.
fn activate(&self, application: &Self::Type) {
// Get the current window or create one if necessary
let window = if let Some(window) = application.active_window() {
window
} else {
let window = OpalWindow::new(application);
window.upcast()
};
// Ask the window manager/compositor to present the window
window.present();
}
}
impl GtkApplicationImpl for OpalApplication {}
impl AdwApplicationImpl for OpalApplication {}
}
glib::wrapper! {
pub struct OpalApplication(ObjectSubclass<imp::OpalApplication>)
@extends gio::Application, gtk::Application, adw::Application,
@implements gio::ActionGroup, gio::ActionMap;
}
impl OpalApplication {
pub fn new(application_id: &str, flags: &gio::ApplicationFlags) -> Self {
glib::Object::new(&[("application-id", &application_id), ("flags", flags)])
.expect("Failed to create OpalApplication")
}
fn setup_gactions(&self) {
let quit_action = gio::SimpleAction::new("quit", None);
quit_action.connect_activate(clone!(@weak self as app => move |_, _| {
app.quit();
}));
self.add_action(&quit_action);
let about_action = gio::SimpleAction::new("about", None);
about_action.connect_activate(clone!(@weak self as app => move |_, _| {
app.show_about();
}));
self.add_action(&about_action);
}
fn show_about(&self) {
let window = self.active_window().unwrap();
let about = adw::AboutWindow::builder()
.transient_for(&window)
.application_name("opal")
.application_icon("al.getcryst.opal")
.developer_name("axtlos")
.version(VERSION)
.developers(vec!["axtlos".into()])
.copyright("© 2022 axtlos")
.build();
about.present();
}
}

4
src/config.rs.in
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pub static VERSION: &str = @VERSION@;
pub static GETTEXT_PACKAGE: &str = @GETTEXT_PACKAGE@;
pub static LOCALEDIR: &str = @LOCALEDIR@;
pub static PKGDATADIR: &str = @PKGDATADIR@;

29
src/gtk/help-overlay.ui
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<?xml version="1.0" encoding="UTF-8"?>
<interface>
<object class="GtkShortcutsWindow" id="help_overlay">
<property name="modal">True</property>
<child>
<object class="GtkShortcutsSection">
<property name="section-name">shortcuts</property>
<property name="max-height">10</property>
<child>
<object class="GtkShortcutsGroup">
<property name="title" translatable="yes" context="shortcut window">General</property>
<child>
<object class="GtkShortcutsShortcut">
<property name="title" translatable="yes" context="shortcut window">Show Shortcuts</property>
<property name="action-name">win.show-help-overlay</property>
</object>
</child>
<child>
<object class="GtkShortcutsShortcut">
<property name="title" translatable="yes" context="shortcut window">Quit</property>
<property name="action-name">app.quit</property>
</object>
</child>
</object>
</child>
</object>
</child>
</object>
</interface>

55
src/main.rs
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/* main.rs
*
* Copyright 2022 axtlos
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*/
mod application;
mod config;
mod window;
use self::application::OpalApplication;
use self::window::OpalWindow;
use config::{GETTEXT_PACKAGE, LOCALEDIR, PKGDATADIR};
use gettextrs::{bind_textdomain_codeset, bindtextdomain, textdomain};
use gtk::gio;
use gtk::prelude::*;
fn main() {
// Set up gettext translations
bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR).expect("Unable to bind the text domain");
bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8")
.expect("Unable to set the text domain encoding");
textdomain(GETTEXT_PACKAGE).expect("Unable to switch to the text domain");
// Load resources
let resources = gio::Resource::load(PKGDATADIR.to_owned() + "/opal.gresource")
.expect("Could not load resources");
gio::resources_register(&resources);
// Create a new GtkApplication. The application manages our main loop,
// application windows, integration with the window manager/compositor, and
// desktop features such as file opening and single-instance applications.
let app = OpalApplication::new("al.getcryst.opal", &gio::ApplicationFlags::empty());
// Run the application. This function will block until the application
// exits. Upon return, we have our exit code to return to the shell. (This
// is the code you see when you do `echo $?` after running a command in a
// terminal.
std::process::exit(app.run());
}

56
src/meson.build
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pkgdatadir = join_paths(get_option('prefix'), get_option('datadir'), meson.project_name())
gnome = import('gnome')
gnome.compile_resources('opal',
'opal.gresource.xml',
gresource_bundle: true,
install: true,
install_dir: pkgdatadir,
)
conf = configuration_data()
conf.set_quoted('VERSION', meson.project_version())
conf.set_quoted('GETTEXT_PACKAGE', 'opal')
conf.set_quoted('LOCALEDIR', join_paths(get_option('prefix'), get_option('localedir')))
conf.set_quoted('PKGDATADIR', pkgdatadir)
configure_file(
input: 'config.rs.in',
output: 'config.rs',
configuration: conf
)
# Copy the config.rs output to the source directory.
run_command(
'cp',
join_paths(meson.project_build_root(), 'src', 'config.rs'),
join_paths(meson.project_source_root(), 'src', 'config.rs'),
check: true
)
cargo_bin = find_program('cargo')
cargo_opt = [ '--manifest-path', meson.project_source_root() / 'Cargo.toml' ]
cargo_opt += [ '--target-dir', meson.project_build_root() / 'src' ]
cargo_env = [ 'CARGO_HOME=' + meson.project_build_root() / 'cargo-home' ]
if get_option('buildtype') == 'release'
cargo_options += [ '--release' ]
rust_target = 'release'
else
rust_target = 'debug'
endif
cargo_build = custom_target(
'cargo-build',
build_by_default: true,
build_always_stale: true,
output: meson.project_name(),
console: true,
install: true,
install_dir: get_option('bindir'),
command: [
'env', cargo_env,
cargo_bin, 'build',
cargo_opt, '&&', 'cp', 'src' / rust_target / meson.project_name(), '@OUTPUT@',
]
)

6
src/opal.gresource.xml
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<?xml version="1.0" encoding="UTF-8"?>
<gresources>
<gresource prefix="/al/getcryst/opal">
<file preprocess="xml-stripblanks">window.ui</file>
</gresource>
</gresources>

70
src/window.rs
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/* window.rs
*
* Copyright 2022 axtlos
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*/
use gtk::prelude::*;
use adw::subclass::prelude::*;
use gtk::{gio, glib, CompositeTemplate};
mod imp {
use super::*;
#[derive(Debug, Default, CompositeTemplate)]
#[template(resource = "/al/getcryst/opal/window.ui")]
pub struct OpalWindow {
// Template widgets
#[template_child]
pub header_bar: TemplateChild<gtk::HeaderBar>,
#[template_child]
pub label: TemplateChild<gtk::Label>,
}
#[glib::object_subclass]
impl ObjectSubclass for OpalWindow {
const NAME: &'static str = "OpalWindow";
type Type = super::OpalWindow;
type ParentType = adw::ApplicationWindow;
fn class_init(klass: &mut Self::Class) {
Self::bind_template(klass);
}
fn instance_init(obj: &glib::subclass::InitializingObject<Self>) {
obj.init_template();
}
}
impl ObjectImpl for OpalWindow {}
impl WidgetImpl for OpalWindow {}
impl WindowImpl for OpalWindow {}
impl ApplicationWindowImpl for OpalWindow {}
impl AdwApplicationWindowImpl for OpalWindow {}
}
glib::wrapper! {
pub struct OpalWindow(ObjectSubclass<imp::OpalWindow>)
@extends gtk::Widget, gtk::Window, gtk::ApplicationWindow, adw::ApplicationWindow, @implements gio::ActionGroup, gio::ActionMap;
}
impl OpalWindow {
pub fn new<P: glib::IsA<gtk::Application>>(application: &P) -> Self {
glib::Object::new(&[("application", application)])
.expect("Failed to create OpalWindow")
}
}

49
src/window.ui
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<?xml version="1.0" encoding="UTF-8"?>
<interface>
<requires lib="gtk" version="4.0"/>
<requires lib="Adw" version="1.0"/>
<template class="OpalWindow" parent="AdwApplicationWindow">
<property name="default-width">600</property>
<property name="default-height">300</property>
<child>
<object class="GtkBox">
<property name="orientation">vertical</property>
<child>
<object class="GtkHeaderBar" id="header_bar">
<child type="end">
<object class="GtkMenuButton">
<property name="icon-name">open-menu-symbolic</property>
<property name="menu-model">primary_menu</property>
</object>
</child>
</object>
</child>
<child>
<object class="GtkLabel" id="label">
<property name="label">Hello, World!</property>
<property name="vexpand">true</property>
<style>
<class name="title-1"/>
</style>
</object>
</child>
</object>
</child>
</template>
<menu id="primary_menu">
<section>
<item>
<attribute name="label" translatable="yes">_Preferences</attribute>
<attribute name="action">app.preferences</attribute>
</item>
<item>
<attribute name="label" translatable="yes">_Keyboard Shortcuts</attribute>
<attribute name="action">win.show-help-overlay</attribute>
</item>
<item>
<attribute name="label" translatable="yes">_About Opal</attribute>
<attribute name="action">app.about</attribute>
</item>
</section>
</menu>
</interface>
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