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use super::*;
use std::fmt;
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
pub enum NotifyReason {
EndOfStream,
MediaPropertiesUpdate,
ScaleChange,
Extension(String),
}
impl NotifyReason {
pub fn as_str(&self) -> &str {
match self {
NotifyReason::EndOfStream => "end-of-stream",
NotifyReason::MediaPropertiesUpdate => "media-properties-update",
NotifyReason::ScaleChange => "scale-change",
NotifyReason::Extension(ref s) => s.as_str(),
}
}
}
impl fmt::Display for NotifyReason {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str(self.as_str())
}
}
impl std::str::FromStr for NotifyReason {
type Err = HeaderParseError;
fn from_str(s: &str) -> Result<Self, HeaderParseError> {
match s {
"end-of-stream" => Ok(NotifyReason::EndOfStream),
"media-properties-update" => Ok(NotifyReason::MediaPropertiesUpdate),
"scale-change" => Ok(NotifyReason::ScaleChange),
_ => Ok(NotifyReason::Extension(String::from(s))),
}
}
}
impl super::TypedHeader for NotifyReason {
fn from_headers(headers: impl AsRef<Headers>) -> Result<Option<Self>, HeaderParseError> {
let headers = headers.as_ref();
let header = match headers.get(&NOTIFY_REASON) {
None => return Ok(None),
Some(header) => header,
};
let notify_reason = header.as_str().parse().map_err(|_| HeaderParseError)?;
Ok(Some(notify_reason))
}
fn insert_into(&self, mut headers: impl AsMut<Headers>) {
let headers = headers.as_mut();
headers.insert(NOTIFY_REASON, self.to_string());
}
}