Line data    Source code

       1              : /*
       2              :  * Copyright (C) 2015 Red Hat, Inc.
       3              :  * SPDX-License-Identifier: LGPL-2.1-or-later
       4              :  */
       5              : 
       6              : import '../lib/patternfly/patternfly-6-cockpit.scss';
       7              : import 'polyfills'; // once per application
       8              : import 'cockpit-dark-theme'; // once per page
       9              : 
      10          113 : import cockpit from "cockpit";
      11          113 : import React from "react";
      12          113 : import { createRoot } from 'react-dom/client';
      13              : import { ExclamationCircleIcon } from "@patternfly/react-icons";
      14              : 
      15              : import { EmptyStatePanel } from "cockpit-components-empty-state.jsx";
      16              : import { PlotState } from "plot.js";
      17              : 
      18              : import client from "./client";
      19              : import { update_plot_state } from "./plot.jsx";
      20              : import { StoragePage } from "./pages.jsx";
      21              : 
      22              : import "./storage.scss";
      23              : 
      24          113 : const _ = cockpit.gettext;
      25              : 
      26          113 : class Application extends React.Component {
      27          113 :     constructor() {
      28          113 :         super();
      29          113 :         this.state = { inited: false, slow_init: false, path: cockpit.location.path };
      30          113 :         this.plot_state = new PlotState();
      31          113 :         this.on_client_changed = () => { if (!client.busy) this.setState({}); };
      32           87 :         this.on_navigate = () => { this.setState({ path: cockpit.location.path }) };
      33          113 :     }
      34              : 
      35          113 :     componentDidMount() {
      36          113 :         client.addEventListener("changed", this.on_client_changed);
      37          113 :         cockpit.addEventListener("locationchanged", this.on_navigate);
      38          112 :         client.init(() => { this.setState({ inited: true }) });
      39           80 :         window.setTimeout(() => { if (!this.state.inited) this.setState({ slow_init: true }); }, 1000);
      40          113 :     }
      41              : 
      42            0 :     componentWillUnmount() {
      43            0 :         client.removeEventListener("changed", this.on_client_changed);
      44            0 :         cockpit.removeEventListener("locationchanged", this.on_navigate);
      45            0 :     }
      46              : 
      47          113 :     render() {
      48          113 :         const { inited, slow_init, path } = this.state;
      49              : 
      50          113 :         if (!inited) {
      51          113 :             if (slow_init)
      52           91 :                 return <EmptyStatePanel loading title={ _("Loading...") } />;
      53              :             else
      54          113 :                 return null;
      55          113 :         }
      56              : 
      57          113 :         if (client.features == false || client.younger_than("2.6"))
      58           24 :             return <EmptyStatePanel icon={ExclamationCircleIcon} title={ _("Storage can not be managed on this system.") } />;
      59              : 
      60              :         // We maintain the plot state here so that the plots stay
      61              :         // alive no matter what page is shown.
      62          113 :         update_plot_state(this.plot_state, client);
      63              : 
      64          113 :         return <StoragePage location={path} plot_state={this.plot_state} />;
      65          113 :     }
      66          113 : }
      67              : 
      68          113 : function init() {
      69          113 :     const root = createRoot(document.getElementById('storage'));
      70          113 :     root.render(<Application />);
      71          113 :     document.body.removeAttribute("hidden");
      72              : 
      73            0 :     window.addEventListener('beforeunload', event => {
      74            0 :         if (client.busy) {
      75              :             // Firefox requires this when the page is in an iframe
      76            0 :             event.preventDefault();
      77              : 
      78              :             // see "an almost cross-browser solution" at
      79              :             // https://developer.mozilla.org/en-US/docs/Web/API/Window/beforeunload_event
      80            0 :             event.returnValue = '';
      81            0 :             return '';
      82            0 :         }
      83            0 :     });
      84          113 : }
      85              : 
      86          113 : document.addEventListener("DOMContentLoaded", init);