cef_dll_sys/
lib.rs

1#![doc = include_str!("../README.md")]
2
3#[allow(
4    non_snake_case,
5    non_camel_case_types,
6    non_upper_case_globals,
7    dead_code,
8    clippy::all
9)]
10mod bindings;
11pub use bindings::*;
12
13#[cfg(target_os = "windows")]
14impl Default for HWND {
15    fn default() -> Self {
16        Self(std::ptr::null_mut())
17    }
18}
19
20#[cfg(target_os = "windows")]
21impl Default for HINSTANCE {
22    fn default() -> Self {
23        Self(std::ptr::null_mut())
24    }
25}
26
27#[cfg(target_os = "macos")]
28pub const FRAMEWORK_PATH: &str =
29    "Chromium Embedded Framework.framework/Chromium Embedded Framework";
30
31use std::{
32    env::{
33        self,
34        consts::{ARCH, OS},
35    },
36    fs,
37    path::PathBuf,
38};
39
40pub fn get_cef_dir() -> Option<PathBuf> {
41    let cef_path_env = env::var("FLATPAK")
42        .map(|_| String::from("/usr/lib"))
43        .or_else(|_| env::var("CEF_PATH"));
44
45    match cef_path_env {
46        Ok(cef_path) => {
47            // Allow overriding the CEF path with environment variables.
48            PathBuf::from(cef_path).canonicalize().ok()
49        }
50        Err(_) => {
51            let out_dir = PathBuf::from(env!("OUT_DIR"));
52            let cef_dir = format!("cef_{OS}_{ARCH}");
53            let cef_dir = out_dir.join(&cef_dir).canonicalize().ok()?;
54            fs::exists(&cef_dir).ok()?.then_some(cef_dir)
55        }
56    }
57}
58
59#[cfg(test)]
60mod test {
61    use super::*;
62
63    #[test]
64    fn test_cef_dir() {
65        let _ = get_cef_dir().expect("CEF not found");
66    }
67
68    #[test]
69    fn test_init() {
70        use std::ptr::*;
71
72        unsafe {
73            #[cfg(target_os = "macos")]
74            {
75                use std::os::unix::ffi::OsStrExt;
76
77                let cef_dir = get_cef_dir().expect("CEF not found");
78                let framework_dir = cef_dir
79                    .join(FRAMEWORK_PATH)
80                    .canonicalize()
81                    .expect("failed to get framework path");
82                let framework_dir = std::ffi::CString::new(framework_dir.as_os_str().as_bytes())
83                    .expect("invalid path");
84
85                assert_eq!(cef_load_library(framework_dir.as_ptr().cast()), 1);
86            }
87
88            assert_eq!(cef_initialize(null(), null(), null_mut(), null_mut()), 0);
89        };
90    }
91}
cef_dll_sys/lib.rs

cef_dll_sys/
lib.rs
