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/*
This file is part of GNU Taler
(C) 2019 Taler Systems SA
GNU Taler is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* Welcome page, shown on first installs.
*
* @author Florian Dold
*/
import { useState, useEffect, useMemo, useCallback } from "preact/hooks";
import { getDiagnostics } from "../wxApi";
import { PageLink } from "../renderHtml";
import * as wxApi from "../wxApi";
import { getPermissionsApi } from "../compat";
import { extendedPermissions } from "../permissions";
import { WalletDiagnostics } from "@gnu-taler/taler-util";
import { Fragment, JSX } from "preact/jsx-runtime";
export function Diagnostics(): JSX.Element | null {
const [timedOut, setTimedOut] = useState(false);
const [diagnostics, setDiagnostics] = useState<WalletDiagnostics | undefined>(
undefined,
);
useEffect(() => {
let gotDiagnostics = false;
setTimeout(() => {
if (!gotDiagnostics) {
console.error("timed out");
setTimedOut(true);
}
}, 1000);
const doFetch = async (): Promise<void> => {
const d = await getDiagnostics();
console.log("got diagnostics", d);
gotDiagnostics = true;
setDiagnostics(d);
};
console.log("fetching diagnostics");
doFetch();
}, []);
if (timedOut) {
return <p>Diagnostics timed out. Could not talk to the wallet backend.</p>;
}
if (diagnostics) {
if (diagnostics.errors.length === 0) {
return null;
} else {
return (
<div
style={{
borderLeft: "0.5em solid red",
paddingLeft: "1em",
paddingTop: "0.2em",
paddingBottom: "0.2em",
}}
>
<p>Problems detected:</p>
<ol>
{diagnostics.errors.map((errMsg) => (
<li key={errMsg}>{errMsg}</li>
))}
</ol>
{diagnostics.firefoxIdbProblem ? (
<p>
Please check in your <code>about:config</code> settings that you
have IndexedDB enabled (check the preference name{" "}
<code>dom.indexedDB.enabled</code>).
</p>
) : null}
{diagnostics.dbOutdated ? (
<p>
Your wallet database is outdated. Currently automatic migration is
not supported. Please go{" "}
<PageLink pageName="/reset-required">here</PageLink> to reset
the wallet database.
</p>
) : null}
</div>
);
}
}
return <p>Running diagnostics ...</p>;
}
async function handleExtendedPerm(isEnabled: boolean): Promise<boolean> {
let nextVal: boolean | undefined;
if (!isEnabled) {
const granted = await new Promise<boolean>((resolve, reject) => {
// We set permissions here, since apparently FF wants this to be done
// as the result of an input event ...
getPermissionsApi().request(extendedPermissions, (granted: boolean) => {
if (chrome.runtime.lastError) {
console.error("error requesting permissions");
console.error(chrome.runtime.lastError);
reject(chrome.runtime.lastError);
return;
}
console.log("permissions granted:", granted);
resolve(granted);
});
});
const res = await wxApi.setExtendedPermissions(granted);
nextVal = res.newValue;
} else {
const res = await wxApi.setExtendedPermissions(false);
nextVal = res.newValue;
}
console.log("new permissions applied:", nextVal ?? false);
return nextVal ?? false
}
export function useExtendedPermissions(): [boolean, () => void] {
const [enabled, setEnabled] = useState(false);
const toggle = () => {
setEnabled(v => !v)
handleExtendedPerm(enabled).then( result => {
setEnabled(result)
} )
}
useEffect(() => {
async function getExtendedPermValue(): Promise<void> {
const res = await wxApi.getExtendedPermissions();
setEnabled(res.newValue);
}
getExtendedPermValue();
},[]);
return [enabled, toggle]
}
export function PermissionsCheckbox({enabled, onToggle}: {enabled:boolean, onToggle: () => void}): JSX.Element {
return (
<div>
<input
checked={enabled}
onClick={onToggle}
type="checkbox"
id="checkbox-perm"
style={{ width: "1.5em", height: "1.5em", verticalAlign: "middle" }}
/>
<label
htmlFor="checkbox-perm"
style={{ marginLeft: "0.5em", fontWeight: "bold" }}
>
Automatically open wallet based on page content
</label>
<span
style={{
color: "#383838",
fontSize: "smaller",
display: "block",
marginLeft: "2em",
}}
>
(Enabling this option below will make using the wallet faster, but
requires more permissions from your browser.)
</span>
</div>
);
}
export function Welcome(): JSX.Element {
const [permissionsEnabled, togglePermissions] = useExtendedPermissions()
return (
<>
<p>Thank you for installing the wallet.</p>
<Diagnostics />
<h2>Permissions</h2>
<PermissionsCheckbox enabled={permissionsEnabled} onToggle={togglePermissions}/>
<h2>Next Steps</h2>
<a href="https://demo.taler.net/" style={{ display: "block" }}>
Try the demo »
</a>
<a href="https://demo.taler.net/" style={{ display: "block" }}>
Learn how to top up your wallet balance »
</a>
</>
);
}
/**
* @deprecated to be removed
*/
export function createWelcomePage(): JSX.Element {
return <Welcome />;
}
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