expected a `Fn<(MouseEvent,)>` closure, found `Callback<&yew::Event>` #2663

jasper2007111 · 2022-05-06T01:32:51Z

fn view(&self, ctx: &Context<Self>) -> Html {
        let history = ctx.link().navigator().unwrap();
        let onclick = Callback::from(move |_| history.push(Route::Add));

        let history1 = ctx.link().navigator().unwrap();
        let on_edit_click = Callback::from(move |event: &Event| {
            history1.push(Route::Edit);
        });

        match &self.todo {
            FetchState::NotFetching => html! {
                <>
                    <button onclick={ctx.link().callback(|_| Msg::GetTodo)}>
                        { "Get Markdown" }
                    </button>
                    <button onclick={ctx.link().callback(|_| Msg::GetError)}>
                        { "Get using incorrect URL" }
                    </button>
                </>
            },
            FetchState::Fetching => html! { "Fetching" },
            FetchState::Success(data) => || -> Html {
                html! {
                    <div>
                        <h1>{ "记事本" }</h1>
                        <div>
                        {
                            data.into_iter().map(|note| {
                                html!{
                                    <div style="margin: 10px 10px 0 0;">
                                    <div>{note.content.clone()}</div>
                                    <div>{note.create_time.clone()}</div>
                                    <button onclick={on_edit_click}>{"编辑"}</button>
                                    </div>
                                }
                            }).collect::<Html>()
                        }
                        </div>
                        <div style="margin: 10px 10px 0 0;"><button {onclick}>{ "添加" }</button></div>
                    </div>
                }
            }(),
            FetchState::Failed(err) => html! { err },
        }
    }

error[E0277]: expected a `Fn<(MouseEvent,)>` closure, found `Callback<&yew::Event>`
   --> src/jasper_ji/home.rs:146:54
    |
142 | / ...                   html!{
143 | | ...                       <div style="margin: 10px 10px 0 0;">
144 | | ...                       <div>{note.content.clone()}</div>
145 | | ...                       <div>{note.create_time.clone()}</div>
146 | | ...                       <button onclick={on_edit_click}>{"编辑"}</button>
    | |                                            ^^^^^^^^^^^^^ expected an `Fn<(MouseEvent,)>` closure, found `Callback<&yew::Event>`
147 | | ...                       </div>
148 | | ...                   }
    | |_______________________- required by a bound introduced by this call
    |
    = help: the trait `Fn<(MouseEvent,)>` is not implemented for `Callback<&yew::Event>`
    = note: required because of the requirements on the impl of `IntoEventCallback<MouseEvent>` for `Callback<&yew::Event>`
note: required by a bound in `yew::html::onclick::Wrapper::__macro_new`
   --> /Users/jasperji/.cargo/git/checkouts/yew-7424ad4d701b481c/c28a71e/packages/yew/src/html/listener/events.rs:129:1
    |
129 | / impl_short! {
130 | |     onauxclick(MouseEvent)
131 | |     onclick(MouseEvent)
132 | |
...   |
193 | |     ontransitionstart(TransitionEvent)
194 | | }
    | |_^ required by this bound in `yew::html::onclick::Wrapper::__macro_new`
    = note: this error originates in the macro `impl_action` (in Nightly builds, run with -Z macro-backtrace for more info)

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jasper2007111 added the bug label May 6, 2022

jasper2007111 closed this as completed May 6, 2022

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expected a `Fn<(MouseEvent,)>` closure, found `Callback<&yew::Event>` #2663

expected a `Fn<(MouseEvent,)>` closure, found `Callback<&yew::Event>` #2663

jasper2007111 commented May 6, 2022

expected a Fn<(MouseEvent,)> closure, found Callback<&yew::Event> #2663

expected a Fn<(MouseEvent,)> closure, found Callback<&yew::Event> #2663

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jasper2007111 commented May 6, 2022

expected a `Fn<(MouseEvent,)>` closure, found `Callback<&yew::Event>` #2663

expected a `Fn<(MouseEvent,)>` closure, found `Callback<&yew::Event>` #2663