perspective_viewer/components/
status_indicator.rs

1// ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
2// ┃ ██████ ██████ ██████       █      █      █      █      █ █▄  ▀███ █       ┃
3// ┃ ▄▄▄▄▄█ █▄▄▄▄▄ ▄▄▄▄▄█  ▀▀▀▀▀█▀▀▀▀▀ █ ▀▀▀▀▀█ ████████▌▐███ ███▄  ▀█ █ ▀▀▀▀▀ ┃
4// ┃ █▀▀▀▀▀ █▀▀▀▀▀ █▀██▀▀ ▄▄▄▄▄ █ ▄▄▄▄▄█ ▄▄▄▄▄█ ████████▌▐███ █████▄   █ ▄▄▄▄▄ ┃
5// ┃ █      ██████ █  ▀█▄       █ ██████      █      ███▌▐███ ███████▄ █       ┃
6// ┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫
7// ┃ Copyright (c) 2017, the Perspective Authors.                              ┃
8// ┃ ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ ┃
9// ┃ This file is part of the Perspective library, distributed under the terms ┃
10// ┃ of the [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0). ┃
11// ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
12
13use perspective_client::config::ViewConfigUpdate;
14use perspective_js::utils::ApiError;
15use web_sys::*;
16use yew::prelude::*;
17
18use crate::renderer::Renderer;
19use crate::session::{Session, SessionProps, TableLoadState};
20use crate::tasks::apply_and_render;
21use crate::utils::*;
22
23/// Value-prop version: no PubSub subscriptions, no reducer.
24/// The parent (`StatusBar`) re-renders this component whenever
25/// `session_props.error/has_table/stats` or `update_count` change (via
26/// root's `UpdateInFlight` / `UpdateSession` messages).
27#[derive(PartialEq, Properties)]
28pub struct StatusIndicatorProps {
29    pub renderer: Renderer,
30    pub session: Session,
31    /// Number of in-flight CONFIG-DRIVEN runs (>0 → "updating" spinner) —
32    /// a level-triggered snapshot of `Session::in_flight_config_runs`
33    /// (RAII-settled; see `UPDATE_COUNT_REGRESSION_PLAN.md`).
34    pub update_count: u32,
35    /// Snapshot of session value props — read for `error`, `has_table`,
36    /// `stats` to derive the icon state.
37    pub session_props: SessionProps,
38}
39
40/// An indicator component which displays the current status of the perspective
41/// server as an icon. This indicator also functions as a button to invoke the
42/// reconnect callback when in an error state.
43#[function_component]
44pub fn StatusIndicator(props: &StatusIndicatorProps) -> Html {
45    let has_table_cells = props
46        .session_props
47        .stats
48        .as_ref()
49        .and_then(|s| s.num_table_cells)
50        .is_some();
51
52    let state = if let Some(err) = &props.session_props.error {
53        StatusIconState::Errored(
54            err.message(),
55            err.stacktrace(),
56            err.kind(),
57            err.is_reconnect(),
58        )
59    } else if !has_table_cells
60        && matches!(props.session_props.has_table, Some(TableLoadState::Loading))
61    {
62        StatusIconState::Loading
63    } else if props.update_count > 0 {
64        StatusIconState::Updating
65    } else if has_table_cells {
66        StatusIconState::Normal
67    } else {
68        StatusIconState::Uninitialized
69    };
70
71    let class_name = match &state {
72        StatusIconState::Errored(_, _, _, true) => "errored",
73        StatusIconState::Errored(_, _, _, false) => "errored disabled",
74        StatusIconState::Normal => "connected",
75        StatusIconState::Updating => "updating",
76        StatusIconState::Loading => "loading",
77        StatusIconState::Uninitialized => "uninitialized",
78    };
79
80    let onclick = use_async_callback(
81        (props.session.clone(), props.renderer.clone(), state.clone()),
82        async move |_: MouseEvent, (session, renderer, state)| {
83            match &state {
84                StatusIconState::Errored(..) => {
85                    session.reconnect().await?;
86                    apply_and_render(session, renderer, ViewConfigUpdate::default())?.await?;
87                },
88                StatusIconState::Normal => {
89                    session.status_indicator_clicked.emit(());
90                },
91                _ => {},
92            };
93
94            Ok::<_, ApiError>(())
95        },
96    );
97
98    html! {
99        <>
100            <div class="section">
101                <div id="status_reconnect" class={class_name} {onclick}>
102                    <span id="status" class={class_name} />
103                    <span id="status_updating" class={class_name} />
104                </div>
105                if let StatusIconState::Errored(err, stack, kind, _) = &state {
106                    <div class="error-dialog">
107                        <div class="error-dialog-message">{ format!("{} {}", kind, err) }</div>
108                        <div class="error-dialog-stack">{ stack }</div>
109                    </div>
110                }
111            </div>
112        </>
113    }
114}
115
116#[derive(Clone, Debug, PartialEq)]
117enum StatusIconState {
118    Loading,
119    Updating,
120    Errored(String, String, &'static str, bool),
121    Normal,
122    Uninitialized,
123}
perspective_viewer/components/status_indicator.rs

perspective_viewer/components/
status_indicator.rs
