// Copyright 2023 The Grim Developers
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use std::sync::atomic::{AtomicBool, Ordering};
use egui::os::OperatingSystem;
use egui::RichText;
use lazy_static::lazy_static;
use crate::gui::Colors;
use crate::gui::platform::PlatformCallbacks;
use crate::gui::views::{Modal, NetworkContent, View, WalletsContent};
use crate::gui::views::types::ModalContainer;
use crate::node::Node;
lazy_static! {
/// Global state to check if [`NetworkContent`] panel is open.
static ref NETWORK_PANEL_OPEN: AtomicBool = AtomicBool::new(false);
}
/// Contains main ui content, handles side panel state.
pub struct Root {
/// Side panel [`NetworkContent`] content.
network: NetworkContent,
/// Central panel [`WalletsContent`] content.
wallets: WalletsContent,
/// Check if app exit is allowed on close event of [`eframe::App`] implementation.
pub(crate) exit_allowed: bool,
/// Flag to show exit progress at [`Modal`].
show_exit_progress: bool,
/// List of allowed [`Modal`] ids for this [`ModalContainer`].
allowed_modal_ids: Vec<&'static str>
}
impl Default for Root {
fn default() -> Self {
// Exit from eframe only for non-mobile platforms.
let os = OperatingSystem::from_target_os();
let exit_allowed = os == OperatingSystem::Android || os == OperatingSystem::IOS;
Self {
network: NetworkContent::default(),
wallets: WalletsContent::default(),
exit_allowed,
show_exit_progress: false,
allowed_modal_ids: vec![
Self::EXIT_MODAL_ID
],
}
}
}
impl ModalContainer for Root {
fn modal_ids(&self) -> &Vec<&'static str> {
&self.allowed_modal_ids
}
fn modal_ui(&mut self,
ui: &mut egui::Ui,
frame: &mut eframe::Frame,
modal: &Modal,
_: &dyn PlatformCallbacks) {
match modal.id {
Self::EXIT_MODAL_ID => self.exit_modal_content(ui, frame, modal),
_ => {}
}
}
}
impl Root {
/// Identifier for exit confirmation [`Modal`].
pub const EXIT_MODAL_ID: &'static str = "exit_confirmation";
/// Default width of side panel at application UI.
pub const SIDE_PANEL_WIDTH: f32 = 400.0;
pub fn ui(&mut self, ui: &mut egui::Ui, frame: &mut eframe::Frame, cb: &dyn PlatformCallbacks) {
// Draw modal content for current ui container.
self.current_modal_ui(ui, frame, cb);
let (is_panel_open, panel_width) = Self::network_panel_state_width(frame);
// Show network content.
egui::SidePanel::left("network_panel")
.resizable(false)
.exact_width(panel_width)
.frame(egui::Frame {
fill: Colors::WHITE,
..Default::default()
})
.show_animated_inside(ui, is_panel_open, |ui| {
// Set content height as window height.
let mut rect = ui.available_rect_before_wrap();
rect.set_height(frame.info().window_info.size.y);
ui.allocate_ui_at_rect(rect, |ui| {
self.network.ui(ui, frame, cb);
});
});
// Show wallets content.
egui::CentralPanel::default()
.frame(egui::Frame {
fill: Colors::FILL_DARK,
..Default::default()
})
.show_inside(ui, |ui| {
// Set content height as window height.
let mut rect = ui.available_rect_before_wrap();
rect.set_height(frame.info().window_info.size.y);
ui.allocate_ui_at_rect(rect, |ui| {
self.wallets.ui(ui, frame, cb);
});
});
}
/// Get [`NetworkContent`] panel state and width.
fn network_panel_state_width(frame: &mut eframe::Frame) -> (bool, f32) {
let dual_panel_mode = Self::is_dual_panel_mode(frame);
let is_panel_open = dual_panel_mode || Self::is_network_panel_open();
let panel_width = if dual_panel_mode {
Self::SIDE_PANEL_WIDTH + View::get_left_inset()
} else {
frame.info().window_info.size.x
};
(is_panel_open, panel_width)
}
/// Check if ui can show [`NetworkContent`] and [`WalletsContent`] at same time.
pub fn is_dual_panel_mode(frame: &mut eframe::Frame) -> bool {
let w = frame.info().window_info.size.x;
let h = frame.info().window_info.size.y;
// Screen is wide if width is greater than height or just 20% smaller.
let is_wide_screen = w > h || w + (w * 0.2) >= h;
// Dual panel mode is available when window is wide and its width is at least 2 times
// greater than minimal width of the side panel plus display insets from both sides.
let side_insets = View::get_left_inset() + View::get_right_inset();
is_wide_screen && w >= (Self::SIDE_PANEL_WIDTH * 2.0) + side_insets
}
/// Toggle [`NetworkContent`] panel state.
pub fn toggle_network_panel() {
let is_open = NETWORK_PANEL_OPEN.load(Ordering::Relaxed);
NETWORK_PANEL_OPEN.store(!is_open, Ordering::Relaxed);
}
/// Check if [`NetworkContent`] panel is open.
pub fn is_network_panel_open() -> bool {
NETWORK_PANEL_OPEN.load(Ordering::Relaxed)
}
/// Show exit confirmation modal.
pub fn show_exit_modal() {
Modal::new(Self::EXIT_MODAL_ID)
.title(t!("modal_exit.exit"))
.show();
}
/// Draw exit confirmation modal content.
fn exit_modal_content(&mut self, ui: &mut egui::Ui, frame: &mut eframe::Frame, modal: &Modal) {
if self.show_exit_progress {
if !Node::is_running() {
self.exit(frame);
modal.close();
}
ui.add_space(16.0);
ui.vertical_centered(|ui| {
View::small_loading_spinner(ui);
ui.add_space(12.0);
ui.label(RichText::new(t!("sync_status.shutdown"))
.size(17.0)
.color(Colors::TEXT));
});
ui.add_space(10.0);
} else {
ui.add_space(8.0);
ui.vertical_centered(|ui| {
ui.label(RichText::new(t!("modal_exit.description"))
.size(17.0)
.color(Colors::TEXT));
});
ui.add_space(10.0);
// Show modal buttons.
ui.scope(|ui| {
// Setup spacing between buttons.
ui.spacing_mut().item_spacing = egui::Vec2::new(6.0, 0.0);
ui.columns(2, |columns| {
columns[0].vertical_centered_justified(|ui| {
View::button(ui, t!("modal_exit.exit"), Colors::WHITE, || {
if !Node::is_running() {
self.exit(frame);
modal.close();
} else {
Node::stop(true);
modal.disable_closing();
self.show_exit_progress = true;
}
});
});
columns[1].vertical_centered_justified(|ui| {
View::button(ui, t!("modal.cancel"), Colors::WHITE, || {
modal.close();
});
});
});
ui.add_space(6.0);
});
}
}
/// Exit from the application.
fn exit(&mut self, frame: &mut eframe::Frame) {
self.exit_allowed = true;
frame.close();
}
/// Handle Back key event.
pub fn on_back(&mut self) {
if Modal::on_back() {
if self.wallets.on_back() {
Self::show_exit_modal()
}
}
}
}