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Refactor dashboard example (#744)

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Reducing levels of nesting
This commit is contained in:
Thomas Gotwig 2019-12-10 06:48:56 +01:00 committed by Justin Starry
parent 5c23da01cf
commit 414df9e9d2
1 changed files with 66 additions and 62 deletions
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128
examples/dashboard/src/lib.rs
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@ -15,16 +15,6 @@ pub enum Format {
Toml,
}
pub struct Model {
fetch_service: FetchService,
ws_service: WebSocketService,
link: ComponentLink<Model>,
fetching: bool,
data: Option<u32>,
ft: Option<FetchTask>,
ws: Option<WebSocketTask>,
}
pub enum WsAction {
Connect,
SendData(AsBinary),
@ -65,6 +55,70 @@ pub struct WsResponse {
value: u32,
}
pub struct Model {
fetch_service: FetchService,
ws_service: WebSocketService,
link: ComponentLink<Model>,
fetching: bool,
data: Option<u32>,
ft: Option<FetchTask>,
ws: Option<WebSocketTask>,
}
impl Model {
fn view_data(&self) -> Html {
if let Some(value) = self.data {
html! {
<p>{ value }</p>
}
} else {
html! {
<p>{ "Data hasn't fetched yet." }</p>
}
}
}
fn fetch_json(&mut self, binary: AsBinary) -> yew::services::fetch::FetchTask {
let callback = self.link.callback(
move |response: Response<Json<Result<DataFromFile, Error>>>| {
let (meta, Json(data)) = response.into_parts();
println!("META: {:?}, {:?}", meta, data);
if meta.status.is_success() {
Msg::FetchReady(data)
} else {
Msg::Ignore // FIXME: Handle this error accordingly.
}
},
);
let request = Request::get("/data.json").body(Nothing).unwrap();
if binary {
self.fetch_service.fetch_binary(request, callback)
} else {
self.fetch_service.fetch(request, callback)
}
}
pub fn fetch_toml(&mut self, binary: AsBinary) -> yew::services::fetch::FetchTask {
let callback = self.link.callback(
move |response: Response<Toml<Result<DataFromFile, Error>>>| {
let (meta, Toml(data)) = response.into_parts();
println!("META: {:?}, {:?}", meta, data);
if meta.status.is_success() {
Msg::FetchReady(data)
} else {
Msg::Ignore // FIXME: Handle this error accordingly.
}
},
);
let request = Request::get("/data.toml").body(Nothing).unwrap();
if binary {
self.fetch_service.fetch_binary(request, callback)
} else {
self.fetch_service.fetch(request, callback)
}
}
}
impl Component for Model {
type Message = Msg;
type Properties = ();
@ -86,44 +140,8 @@ impl Component for Model {
Msg::FetchData(format, binary) => {
self.fetching = true;
let task = match format {
Format::Json => {
let callback = self.link.callback(
move |response: Response<Json<Result<DataFromFile, Error>>>| {
let (meta, Json(data)) = response.into_parts();
println!("META: {:?}, {:?}", meta, data);
if meta.status.is_success() {
Msg::FetchReady(data)
} else {
Msg::Ignore // FIXME: Handle this error accordingly.
}
},
);
let request = Request::get("/data.json").body(Nothing).unwrap();
if binary {
self.fetch_service.fetch_binary(request, callback)
} else {
self.fetch_service.fetch(request, callback)
}
}
Format::Toml => {
let callback = self.link.callback(
move |response: Response<Toml<Result<DataFromFile, Error>>>| {
let (meta, Toml(data)) = response.into_parts();
println!("META: {:?}, {:?}", meta, data);
if meta.status.is_success() {
Msg::FetchReady(data)
} else {
Msg::Ignore // FIXME: Handle this error accordingly.
}
},
);
let request = Request::get("/data.toml").body(Nothing).unwrap();
if binary {
self.fetch_service.fetch_binary(request, callback)
} else {
self.fetch_service.fetch(request, callback)
}
}
Format::Json => self.fetch_json(binary),
Format::Toml => self.fetch_toml(binary),
};
self.ft = Some(task);
}
@ -204,17 +222,3 @@ impl Component for Model {
}
}
}
impl Model {
fn view_data(&self) -> Html {
if let Some(value) = self.data {
html! {
<p>{ value }</p>
}
} else {
html! {
<p>{ "Data hasn't fetched yet." }</p>
}
}
}
}