idb_sys/
event.rs

1use std::ops::Deref;
2
3use num_traits::ToPrimitive;
4use wasm_bindgen::{JsCast, JsValue};
5use web_sys::{Event, IdbVersionChangeEvent};
6
7use crate::Error;
8
9/// Event triggered when the database version changes, as the result of an [`DatabaseRequest::on_upgrade_needed`](crate::DatabaseRequest::on_upgrade_needed) event
10/// handler function.
11#[derive(Debug, Clone, PartialEq, Eq)]
12pub struct VersionChangeEvent {
13    inner: IdbVersionChangeEvent,
14}
15
16impl VersionChangeEvent {
17    /// Returns previous version of database.
18    pub fn old_version(&self) -> Result<u32, Error> {
19        self.inner
20            .old_version()
21            .to_u32()
22            .ok_or(Error::NumberConversionError)
23    }
24
25    /// Returns new version of database.
26    pub fn new_version(&self) -> Result<Option<u32>, Error> {
27        self.inner
28            .new_version()
29            .map(|new| new.to_u32().ok_or(Error::NumberConversionError))
30            .transpose()
31    }
32}
33
34impl Deref for VersionChangeEvent {
35    type Target = Event;
36
37    fn deref(&self) -> &Self::Target {
38        self.inner.deref()
39    }
40}
41
42impl From<IdbVersionChangeEvent> for VersionChangeEvent {
43    fn from(inner: IdbVersionChangeEvent) -> Self {
44        Self { inner }
45    }
46}
47
48impl From<VersionChangeEvent> for IdbVersionChangeEvent {
49    fn from(event: VersionChangeEvent) -> Self {
50        event.inner
51    }
52}
53
54impl TryFrom<JsValue> for VersionChangeEvent {
55    type Error = Error;
56
57    fn try_from(value: JsValue) -> Result<Self, Self::Error> {
58        value
59            .dyn_into::<IdbVersionChangeEvent>()
60            .map(Into::into)
61            .map_err(|value| Error::UnexpectedJsType("IdbVersionChangeEvent", value))
62    }
63}
64
65impl From<VersionChangeEvent> for JsValue {
66    fn from(value: VersionChangeEvent) -> Self {
67        value.inner.into()
68    }
69}
idb_sys/event.rs

idb_sys/
event.rs
