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wry/src/ifs/zwp_primary_selection_offer_v1.rs
2022-02-06 19:56:51 +01:00

136 lines
3.8 KiB
Rust

use std::mem;
use crate::client::{Client, ClientError};
use crate::ifs::wl_seat::WlSeatGlobal;
use crate::ifs::zwp_primary_selection_source_v1::ZwpPrimarySelectionSourceV1;
use crate::object::Object;
use crate::utils::buffd::{MsgParser, MsgParserError};
use crate::utils::clonecell::CloneCell;
use std::ops::Deref;
use std::rc::Rc;
use thiserror::Error;
use crate::wire::zwp_primary_selection_offer_v1::*;
use crate::wire::ZwpPrimarySelectionOfferV1Id;
pub struct ZwpPrimarySelectionOfferV1 {
pub id: ZwpPrimarySelectionOfferV1Id,
pub client: Rc<Client>,
pub source: CloneCell<Option<Rc<ZwpPrimarySelectionSourceV1>>>,
}
impl ZwpPrimarySelectionOfferV1 {
pub fn create(
client: &Rc<Client>,
src: &Rc<ZwpPrimarySelectionSourceV1>,
seat: &Rc<WlSeatGlobal>,
) -> Option<Rc<Self>> {
let id = match client.new_id() {
Ok(id) => id,
Err(e) => {
client.error(e);
return None;
}
};
let slf = Rc::new(Self {
id,
client: client.clone(),
source: CloneCell::new(Some(src.clone())),
});
let mt = src.mime_types.borrow_mut();
let mut sent_offer = false;
seat.for_each_primary_selection_device(0, client.id, |device| {
if !mem::replace(&mut sent_offer, true) {
device.send_data_offer(slf.id);
}
for mt in mt.deref() {
slf.send_offer(mt);
}
device.send_selection(id);
});
client.add_server_obj(&slf);
if !sent_offer {
let _ = client.remove_obj(&*slf);
None
} else {
Some(slf)
}
}
pub fn send_offer(self: &Rc<Self>, mime_type: &str) {
self.client.event(OfferOut {
self_id: self.id,
mime_type: mime_type.to_string(),
})
}
fn receive(&self, parser: MsgParser<'_, '_>) -> Result<(), ReceiveError> {
let req: ReceiveIn = self.client.parse(self, parser)?;
if let Some(src) = self.source.get() {
src.send_send(req.mime_type, req.fd);
src.client.flush();
}
Ok(())
}
fn disconnect(&self) {
if let Some(src) = self.source.set(None) {
src.clear_offer();
}
}
fn destroy(&self, parser: MsgParser<'_, '_>) -> Result<(), DestroyError> {
let _req: Destroy = self.client.parse(self, parser)?;
self.disconnect();
self.client.remove_obj(self)?;
Ok(())
}
}
object_base! {
ZwpPrimarySelectionOfferV1, ZwpPrimarySelectionOfferV1Error;
RECEIVE => receive,
DESTROY => destroy,
}
impl Object for ZwpPrimarySelectionOfferV1 {
fn num_requests(&self) -> u32 {
DESTROY + 1
}
fn break_loops(&self) {
self.disconnect();
}
}
simple_add_obj!(ZwpPrimarySelectionOfferV1);
#[derive(Debug, Error)]
pub enum ZwpPrimarySelectionOfferV1Error {
#[error(transparent)]
ClientError(Box<ClientError>),
#[error("Could not process `receive` request")]
ReceiveError(#[from] ReceiveError),
#[error("Could not process `destroy` request")]
DestroyError(#[from] DestroyError),
}
efrom!(ZwpPrimarySelectionOfferV1Error, ClientError);
#[derive(Debug, Error)]
pub enum ReceiveError {
#[error("Parsing failed")]
ParseFailed(#[source] Box<MsgParserError>),
#[error(transparent)]
ClientError(Box<ClientError>),
}
efrom!(ReceiveError, ParseFailed, MsgParserError);
efrom!(ReceiveError, ClientError);
#[derive(Debug, Error)]
pub enum DestroyError {
#[error("Parsing failed")]
ParseFailed(#[source] Box<MsgParserError>),
#[error(transparent)]
ClientError(Box<ClientError>),
}
efrom!(DestroyError, ParseFailed, MsgParserError);
efrom!(DestroyError, ClientError);