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|
use std::path::{Path, PathBuf};
extern crate fxhash;
use fxhash::FxHashMap;
use iced::Theme;
use rust_format::{Edition, Formatter, RustFmt};
use serde::{Deserialize, Serialize};
use super::rendered_element::RenderedElement;
use crate::Error;
use crate::config::Config;
use crate::theme::{theme_from_str, theme_index, theme_to_string};
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Project {
pub title: Option<String>,
pub theme: Option<String>,
pub element_tree: Option<RenderedElement>,
#[serde(skip)]
theme_cache: FxHashMap<String, String>,
}
impl Default for Project {
fn default() -> Self {
Self::new()
}
}
impl Project {
pub fn new() -> Self {
Self {
title: None,
theme: None,
element_tree: None,
theme_cache: FxHashMap::default(),
}
}
pub fn get_theme(&self, config: &Config) -> Theme {
match &self.theme {
Some(theme) => theme_from_str(Some(config), theme),
None => Theme::default(),
}
}
fn theme_code(&mut self, theme: &Theme) -> String {
let theme_name = theme.to_string();
if theme_index(&theme_name, Theme::ALL).is_none() {
(*self
.theme_cache
.entry(theme_name)
.or_insert(theme_to_string(theme)))
.to_string()
} else {
theme_name.replace(" ", "")
}
}
pub async fn from_path(
path: PathBuf,
config: Config,
) -> Result<(PathBuf, Self), Error> {
let contents = tokio::fs::read_to_string(&path).await?;
let mut project: Self = serde_json::from_str(&contents)?;
let _ = project.theme_code(&project.get_theme(&config));
Ok((path, project))
}
pub async fn from_file(config: Config) -> Result<(PathBuf, Self), Error> {
let picked_file = rfd::AsyncFileDialog::new()
.set_title("Open a JSON file...")
.add_filter("*.json, *.JSON", &["json", "JSON"])
.pick_file()
.await
.ok_or(Error::DialogClosed)?;
let path = picked_file.path().to_owned();
Self::from_path(path, config).await
}
pub async fn write_to_file(
self,
path: Option<PathBuf>,
) -> Result<PathBuf, Error> {
let path = if let Some(p) = path {
p
} else {
rfd::AsyncFileDialog::new()
.set_title("Save to JSON file...")
.add_filter("*.json, *.JSON", &["json", "JSON"])
.save_file()
.await
.as_ref()
.map(rfd::FileHandle::path)
.map(Path::to_owned)
.ok_or(Error::DialogClosed)?
};
let contents = serde_json::to_string(&self)?;
tokio::fs::write(&path, contents).await?;
Ok(path)
}
pub fn app_code(&mut self, config: &Config) -> Result<String, Error> {
match self.element_tree {
Some(ref element_tree) => {
let (imports, view) = element_tree.codegen();
let theme = self.get_theme(config);
let theme_code = self.theme_code(&theme);
let mut theme_imports = "";
if theme_index(&theme.to_string(), Theme::ALL).is_none() {
if theme_code.contains("Extended") {
theme_imports = "use iced::{{color,theme::{{Palette,palette::{{Extended,Background,Primary,Secondary,Success,Danger,Warning,Pair}}}}}};\n";
} else {
theme_imports = "use iced::{{color,theme::Palette}};\n";
}
}
let app_code = format!(
r#"// Automatically generated by iced Builder
use iced::{{widget::{{{imports}}},Element}};
{theme_imports}
fn main() -> iced::Result {{
iced::application("{}", State::update, State::view).theme(State::theme).run()
}}
#[derive(Default)]
struct State;
#[derive(Debug, Clone)]
enum Message {{}}
impl State {{
fn update(&mut self, _message: Message) {{}}
fn theme(&self) -> iced::Theme {{
iced::Theme::{}
}}
fn view(&self) -> Element<Message> {{
{view}.into()
}}
}}"#,
match self.title {
Some(ref t) => t,
None => "New app",
},
theme_code
);
let config = rust_format::Config::new_str()
.edition(Edition::Rust2021)
.option("trailing_comma", "Never")
.option("imports_granularity", "Crate");
let rustfmt = RustFmt::from_config(config);
Ok(rustfmt.format_str(app_code)?)
}
None => Err("No element tree present".into()),
}
}
}
|
