// Copyright (c) 2020-2023 Christopher Davis
// Copyright (c) 2022-2023 Sophie Herold
// Copyright (c) 2022-2023 Sabri Ünal
// Copyright (c) 2023 Matteo Nardi
// Copyright (c) 2023 Julian Hofer
// Copyright (c) 2023 Huan Nguyen
//
// 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 .
//
// SPDX-License-Identifier: GPL-3.0-or-later
use adw::prelude::*;
use adw::subclass::prelude::*;
use crate::deps::*;
use crate::window::LpWindow;
use crate::{about, config};
mod imp {
use super::*;
// The basic struct that holds our
// state and widgets
#[derive(Debug)]
pub struct LpApplication {
pub settings: gio::Settings,
}
impl Default for LpApplication {
fn default() -> Self {
Self {
settings: gio::Settings::new(config::APP_ID),
}
}
}
// Sets up the basics for the GObject
// The `#[glib::object_subclass] macro implements
// some boilerplate code for the object setup, e.g. get_type()
#[glib::object_subclass]
impl ObjectSubclass for LpApplication {
const NAME: &'static str = "LpApplication";
type Type = super::LpApplication;
type ParentType = adw::Application;
}
// Overrides GObject vfuncs
impl ObjectImpl for LpApplication {
fn constructed(&self) {
let obj = self.obj();
self.parent_constructed();
// Force dark theme
obj.style_manager()
.set_color_scheme(adw::ColorScheme::PreferDark);
// Set up the actions
obj.setup_actions();
}
}
// Overrides GApplication vfuncs
impl ApplicationImpl for LpApplication {
fn activate(&self) {
let application = self.obj();
let window = LpWindow::new(&*application);
window.present();
}
// Handles opening files from the command line or other applications
fn open(&self, files: &[gio::File], _hint: &str) {
let application = self.obj();
let win = LpWindow::new(&*application);
win.image_view().set_images_from_files(files.to_vec());
}
}
// This is empty, but we still need to provide an
// empty implementation for each type we subclass.
impl GtkApplicationImpl for LpApplication {}
impl AdwApplicationImpl for LpApplication {}
}
// Creates a wrapper struct that inherits the functions
// from objects listed as @extends or interfaces it @implements.
// This is what allows us to do e.g. application.quit() on
// LpApplication without casting.
glib::wrapper! {
pub struct LpApplication(ObjectSubclass)
@extends gio::Application, gtk::Application, adw::Application,
@implements gio::ActionGroup, gio::ActionMap;
}
// This is where the member functions of LpApplication go.
#[allow(clippy::new_without_default)]
impl LpApplication {
pub fn new() -> Self {
glib::Object::builder()
.property("application-id", config::APP_ID)
.property("flags", gio::ApplicationFlags::HANDLES_OPEN)
.property("resource-base-path", "/org/gnome/Loupe")
.build()
}
pub fn setup_actions(&self) {
// gio::ActionEntryBuilder allows us to build and store an action on an object
// that implements gio::ActionMap. Here we build the application's actions and
// add them with add_action_entries().
let actions = [
gio::ActionEntryBuilder::new("about")
.activate(|app: &Self, _, _| {
let app = app.clone();
glib::spawn_future_local(async move { app.show_about().await });
})
.build(),
gio::ActionEntryBuilder::new("help")
.activate(|app: &Self, _, _| app.show_help())
.build(),
gio::ActionEntryBuilder::new("quit")
.activate(|app: &Self, _, _| app.quit())
.build(),
gio::ActionEntryBuilder::new("new-window")
.activate(|app: &Self, _, _| {
let win = LpWindow::new(app);
win.present();
})
.build(),
];
self.add_action_entries(actions);
self.set_accels_for_action("app.help", &["F1"]);
self.set_accels_for_action("app.quit", &["Q"]);
self.set_accels_for_action("app.new-window", &["N"]);
self.set_accels_for_action("win.open", &["O"]);
self.set_accels_for_action("win.print", &["P"]);
self.set_accels_for_action("win.copy", &["C"]);
self.set_accels_for_action("win.trash", &["Delete", "KP_Delete"]);
self.set_accels_for_action("win.show-help-overlay", &["question"]);
self.set_accels_for_action("win.leave-fullscreen", &["Escape"]);
self.set_accels_for_action("win.toggle-properties", &["F9", "Return"]);
self.set_accels_for_action("win.toggle-fullscreen", &["F11"]);
self.set_accels_for_action("win.set-background", &["F8"]);
self.set_accels_for_action("win.image-left", &["Left", "Page_Down"]);
self.set_accels_for_action("win.image-right", &["Right", "Page_Up"]);
self.set_accels_for_action("win.first", &["Home"]);
self.set_accels_for_action("win.last", &["End"]);
self.set_accels_for_action(
"win.zoom-to-exact(1.0)",
&["1", "KP_1", "1", "KP_1"],
);
self.set_accels_for_action(
"win.zoom-to-exact(2.0)",
&["2", "KP_2", "2", "KP_2"],
);
self.set_accels_for_action("win.zoom-best-fit", &["0", "KP_0", "0", "KP_0"]);
self.set_accels_for_action(
"win.zoom-in",
&[
"plus",
"plus",
"equal",
"equal",
"KP_Add",
"KP_Add",
],
);
self.set_accels_for_action(
"win.zoom-out",
&["minus", "minus", "KP_Subtract", "KP_Subtract"],
);
self.set_accels_for_action("win.pan-left", &["Left"]);
self.set_accels_for_action("win.pan-right", &["Right"]);
self.set_accels_for_action("win.pan-up", &["Up"]);
self.set_accels_for_action("win.pan-down", &["Down"]);
self.set_accels_for_action("win.rotate_cw", &["R"]);
self.set_accels_for_action("win.rotate_ccw", &["R"]);
self.set_accels_for_action("window.close", &["W"]);
}
pub async fn show_about(&self) {
let about = about::window().await;
if let Some(window) = self.active_window() {
about.set_transient_for(Some(&window));
}
about.present();
}
pub fn show_help(&self) {
let context = self
.active_window()
.map(|w| gtk::prelude::WidgetExt::display(&w).app_launch_context());
glib::spawn_future_local(async move {
if let Err(e) =
gio::AppInfo::launch_default_for_uri_future("help:loupe", context.as_ref()).await
{
log::error!("Failed to launch help: {}", e.message());
}
});
}
pub fn settings(&self) -> gio::Settings {
self.imp().settings.clone()
}
}
impl Default for LpApplication {
fn default() -> Self {
gio::Application::default()
.unwrap()
.downcast::()
.unwrap()
}
}