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use std::ffi::{CStr, CString};
use std::fs;
use std::ptr;
use std::slice;
use libc::{c_char, size_t};
use stderrlog;
use xdg;
use {HeadphoneButton, MapGroup};
use config::{self, Config};
use errors::*;
use map::{ModeChange, run_key_action};
use trial;
#[repr(C)]
#[derive(Debug)]
pub struct Trigger {
pub buttons: *const HeadphoneButton,
pub length: size_t,
}
#[derive(Default)]
pub struct State {
pub in_mode: Option<Vec<HeadphoneButton>>,
pub map_group: Option<MapGroup>,
mappings_str: String,
}
#[no_mangle]
pub extern "C" fn dome_key_logger_init() {
stderrlog::new()
.module(module_path!())
.color(stderrlog::ColorChoice::Never)
.timestamp(stderrlog::Timestamp::Millisecond)
.init()
.unwrap_or_else(|e| dkeprintln!("{}", e));
}
#[no_mangle]
pub extern "C" fn dome_key_state_new() -> *mut State {
Box::into_raw(Box::new(State::default()))
}
#[no_mangle]
pub extern "C" fn dome_key_state_free(ptr: *mut State) {
if ptr.is_null() { return }
unsafe { Box::from_raw(ptr); }
}
#[no_mangle]
pub extern "C" fn dome_key_state_load_map_group(ptr: *mut State) {
match xdg::BaseDirectories::with_prefix("dome-key") {
Ok(xdg_dirs) => {
let state = unsafe {
assert!(!ptr.is_null());
&mut *ptr
};
match xdg_dirs.find_config_file("mappings.dkmap") {
Some(mapping_file) => {
// Store the mapping string contents in `State`. Otherwise
// the reference doesn't live long enough.
state.mappings_str = match fs::read_to_string(mapping_file)
.chain_err(|| "failed to read 'mappings.dkmap'")
{
Ok(s) => s,
Err(e) => {
error!("{}", e);
String::new()
},
};
let map_group = match MapGroup::parse(&state.mappings_str)
.chain_err(|| "failed to parse 'mappings.dkmap'")
{
Ok(mut map_group) => {
map_group.parse_actions();
Some(map_group)
},
Err(e) => {
error!("{}", e);
None
},
};
state.map_group = map_group;
},
None => {
state.map_group = Some(MapGroup::default());
match xdg_dirs.get_config_home().to_str() {
Some(config_home) => {
error!(
"No mapping file found at '{}{}'. \
Using default mappings.",
config_home,
"mappings.dkmap"
)
},
None => {
error!("Config home path contains invalid unicode")
}
}
},
}
},
Err(e) => error!("{}", e),
}
}
#[no_mangle]
pub extern "C" fn dome_key_run_key_action(
state: *mut State,
trigger: Trigger,
on_mode_change: extern "C" fn(mode_change: ModeChange),
) {
let trigger = unsafe {
assert!(!trigger.buttons.is_null());
slice::from_raw_parts(trigger.buttons, trigger.length as usize)
};
let mut state = unsafe {
assert!(!state.is_null());
&mut *state
};
run_key_action(&mut state, trigger, on_mode_change);
}
#[no_mangle]
pub extern "C" fn dome_key_parse_args(
args: *const *const c_char,
length: size_t,
config_ptr: *mut Config
) -> *mut Config {
let args = unsafe {
assert!(!args.is_null());
let args = slice::from_raw_parts(args, length as usize);
args
.iter()
.map(|s| {
assert!(!s.is_null());
CStr::from_ptr(*s)
.to_string_lossy()
.into_owned()
})
.collect::<Vec<String>>()
};
let config = unsafe {
assert!(!config_ptr.is_null());
&mut *config_ptr
};
config::parse_args(&args, config);
config_ptr
}
#[no_mangle]
pub extern "C" fn dome_key_config_get() -> *mut Config {
match config::get_config() {
Ok(config) => Box::into_raw(Box::new(config)),
Err(e) => {
error!("{}", e);
ptr::null_mut()
},
}
}
#[no_mangle]
pub extern "C" fn dome_key_config_free(ptr: *mut Config) {
if ptr.is_null() { return }
let config = unsafe { Box::from_raw(ptr) };
if config.args.license.is_null() { return }
unsafe { CString::from_raw(config.args.license); }
}
#[no_mangle]
pub extern "C" fn dome_key_do_trial() {
trial::do_trial();
}
|
