Desktop: set cef data and cache directory

Cargo.toml

@@ -155,6 +155,7 @@ criterion = { version = "0.5", features = ["html_reports"] }
 iai-callgrind = { version = "0.12.3" }
 ndarray = "0.16.1"
 strum = { version = "0.26.3", features = ["derive"] }
+dirs = "6.0"
 
 [profile.dev]
 opt-level = 1

desktop/Cargo.toml

@@ -30,3 +30,4 @@ tracing-subscriber = { version = "0.3.19", features = ["env-filter"] }
 tracing = "0.1.41"
 bytemuck = { version = "1.23.1", features = ["derive"] }
 include_dir = "0.7.4"
+dirs.workspace = true

desktop/src/cef.rs

@@ -2,6 +2,7 @@ use crate::FrameBuffer;
 use std::time::Instant;
 
 mod context;
+mod dirs;
 mod input;
 mod internal;
 mod scheme_handler;

desktop/src/cef/context.rs

@@ -4,6 +4,8 @@ use cef::{Browser, CefString, Settings, api_hash, args::Args, execute_process};
 use thiserror::Error;
 use winit::event::WindowEvent;
 
+use crate::cef::dirs::{cef_cache_dir, cef_data_dir};
+
 use super::input::InputState;
 use super::scheme_handler::{FRONTEND_DOMAIN, GRAPHITE_SCHEME};
 use super::{CefEventHandler, input};
@@ -62,6 +64,8 @@ impl Context<Setup> {
 			windowless_rendering_enabled: 1,
 			multi_threaded_message_loop: 0,
 			external_message_pump: 1,
+			root_cache_path: cef_data_dir().to_str().map(CefString::from).unwrap(),
+			cache_path: cef_cache_dir().to_str().map(CefString::from).unwrap(),
 			..Default::default()
 		};
 

desktop/src/cef/dirs.rs

@@ -0,0 +1,17 @@
+use std::path::PathBuf;
+
+use crate::dirs::{ensure_dir_exists, graphite_data_dir};
+
+static CEF_DIR_NAME: &str = "browser";
+
+pub(crate) fn cef_data_dir() -> PathBuf {
+	let path = graphite_data_dir().join(CEF_DIR_NAME);
+	ensure_dir_exists(&path);
+	path
+}
+
+pub(crate) fn cef_cache_dir() -> PathBuf {
+	let path = cef_data_dir().join("cache");
+	ensure_dir_exists(&path);
+	path
+}

desktop/src/dirs.rs

@@ -0,0 +1,16 @@
+use std::fs::create_dir_all;
+use std::path::PathBuf;
+
+static APP_NAME: &str = "graphite-desktop";
+
+pub(crate) fn ensure_dir_exists(path: &PathBuf) {
+	if !path.exists() {
+		create_dir_all(path).unwrap_or_else(|_| panic!("Failed to create directory at {path:?}"));
+	}
+}
+
+pub(crate) fn graphite_data_dir() -> PathBuf {
+	let path = dirs::data_dir().expect("Failed to get data directory").join(APP_NAME);
+	ensure_dir_exists(&path);
+	path
+}

desktop/src/main.rs

@@ -15,6 +15,8 @@ use render::{FrameBuffer, GraphicsState};
 mod app;
 use app::WinitApp;
 
+mod dirs;
+
 #[derive(Debug)]
 pub(crate) enum CustomEvent {
 	UiUpdate,