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#![allow(deprecated)]
use crate::{CssSection, StyleProvider};
use glib::{
prelude::*,
signal::{connect_raw, SignalHandlerId},
translate::*,
};
use std::{boxed::Box as Box_, fmt, mem::transmute, ptr};
glib::wrapper! {
#[doc(alias = "GtkCssProvider")]
pub struct CssProvider(Object<ffi::GtkCssProvider, ffi::GtkCssProviderClass>) @implements StyleProvider;
match fn {
type_ => || ffi::gtk_css_provider_get_type(),
}
}
impl CssProvider {
pub const NONE: Option<&'static CssProvider> = None;
#[doc(alias = "gtk_css_provider_new")]
pub fn new() -> CssProvider {
assert_initialized_main_thread!();
unsafe { from_glib_full(ffi::gtk_css_provider_new()) }
}
#[cfg_attr(feature = "v3_24", deprecated = "Since 3.24")]
#[allow(deprecated)]
#[doc(alias = "gtk_css_provider_get_default")]
#[doc(alias = "get_default")]
#[allow(clippy::should_implement_trait)]
pub fn default() -> Option<CssProvider> {
assert_initialized_main_thread!();
unsafe { from_glib_none(ffi::gtk_css_provider_get_default()) }
}
#[doc(alias = "gtk_css_provider_get_named")]
#[doc(alias = "get_named")]
pub fn named(name: &str, variant: Option<&str>) -> Option<CssProvider> {
assert_initialized_main_thread!();
unsafe {
from_glib_none(ffi::gtk_css_provider_get_named(
name.to_glib_none().0,
variant.to_glib_none().0,
))
}
}
}
impl Default for CssProvider {
fn default() -> Self {
Self::new()
}
}
impl fmt::Display for CssProvider {
#[inline]
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str(&CssProviderExt::to_str(self))
}
}
pub trait CssProviderExt: 'static {
#[doc(alias = "gtk_css_provider_load_from_data")]
fn load_from_data(&self, data: &[u8]) -> Result<(), glib::Error>;
#[doc(alias = "gtk_css_provider_load_from_file")]
fn load_from_file(&self, file: &impl IsA<gio::File>) -> Result<(), glib::Error>;
#[doc(alias = "gtk_css_provider_load_from_path")]
fn load_from_path(&self, path: &str) -> Result<(), glib::Error>;
#[doc(alias = "gtk_css_provider_load_from_resource")]
fn load_from_resource(&self, resource_path: &str);
#[doc(alias = "gtk_css_provider_to_string")]
#[doc(alias = "to_string")]
fn to_str(&self) -> glib::GString;
#[doc(alias = "parsing-error")]
fn connect_parsing_error<F: Fn(&Self, &CssSection, &glib::Error) + 'static>(
&self,
f: F,
) -> SignalHandlerId;
}
impl<O: IsA<CssProvider>> CssProviderExt for O {
fn load_from_data(&self, data: &[u8]) -> Result<(), glib::Error> {
let length = data.len() as _;
unsafe {
let mut error = ptr::null_mut();
let is_ok = ffi::gtk_css_provider_load_from_data(
self.as_ref().to_glib_none().0,
data.to_glib_none().0,
length,
&mut error,
);
debug_assert_eq!(is_ok == glib::ffi::GFALSE, !error.is_null());
if error.is_null() {
Ok(())
} else {
Err(from_glib_full(error))
}
}
}
fn load_from_file(&self, file: &impl IsA<gio::File>) -> Result<(), glib::Error> {
unsafe {
let mut error = ptr::null_mut();
let is_ok = ffi::gtk_css_provider_load_from_file(
self.as_ref().to_glib_none().0,
file.as_ref().to_glib_none().0,
&mut error,
);
debug_assert_eq!(is_ok == glib::ffi::GFALSE, !error.is_null());
if error.is_null() {
Ok(())
} else {
Err(from_glib_full(error))
}
}
}
fn load_from_path(&self, path: &str) -> Result<(), glib::Error> {
unsafe {
let mut error = ptr::null_mut();
let is_ok = ffi::gtk_css_provider_load_from_path(
self.as_ref().to_glib_none().0,
path.to_glib_none().0,
&mut error,
);
debug_assert_eq!(is_ok == glib::ffi::GFALSE, !error.is_null());
if error.is_null() {
Ok(())
} else {
Err(from_glib_full(error))
}
}
}
fn load_from_resource(&self, resource_path: &str) {
unsafe {
ffi::gtk_css_provider_load_from_resource(
self.as_ref().to_glib_none().0,
resource_path.to_glib_none().0,
);
}
}
fn to_str(&self) -> glib::GString {
unsafe {
from_glib_full(ffi::gtk_css_provider_to_string(
self.as_ref().to_glib_none().0,
))
}
}
fn connect_parsing_error<F: Fn(&Self, &CssSection, &glib::Error) + 'static>(
&self,
f: F,
) -> SignalHandlerId {
unsafe extern "C" fn parsing_error_trampoline<
P: IsA<CssProvider>,
F: Fn(&P, &CssSection, &glib::Error) + 'static,
>(
this: *mut ffi::GtkCssProvider,
section: *mut ffi::GtkCssSection,
error: *mut glib::ffi::GError,
f: glib::ffi::gpointer,
) {
let f: &F = &*(f as *const F);
f(
CssProvider::from_glib_borrow(this).unsafe_cast_ref(),
&from_glib_borrow(section),
&from_glib_borrow(error),
)
}
unsafe {
let f: Box_<F> = Box_::new(f);
connect_raw(
self.as_ptr() as *mut _,
b"parsing-error\0".as_ptr() as *const _,
Some(transmute::<_, unsafe extern "C" fn()>(
parsing_error_trampoline::<Self, F> as *const (),
)),
Box_::into_raw(f),
)
}
}
}