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<li><a href="#googleappclient" id="toc-googleappclient" class="nav-link active" data-scroll-target="#googleappclient">GoogleAppClient</a></li>
<li><a href="#githubappclient" id="toc-githubappclient" class="nav-link" data-scroll-target="#githubappclient">GitHubAppClient</a></li>
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<li><a href="#discordappclient" id="toc-discordappclient" class="nav-link" data-scroll-target="#discordappclient">DiscordAppClient</a></li>
<li><a href="#auth0appclient" id="toc-auth0appclient" class="nav-link" data-scroll-target="#auth0appclient">Auth0AppClient</a></li>
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<li><a href="#appclient.retr_id" id="toc-appclient.retr_id" class="nav-link" data-scroll-target="#appclient.retr_id">_AppClient.retr_id</a></li>
<li><a href="#url_match" id="toc-url_match" class="nav-link" data-scroll-target="#url_match">url_match</a></li>
<li><a href="#oauth" id="toc-oauth" class="nav-link" data-scroll-target="#oauth">OAuth</a></li>
<li><a href="#google-helpers" id="toc-google-helpers" class="nav-link" data-scroll-target="#google-helpers">Google helpers</a></li>
<li><a href="#googleappclient.consent_url" id="toc-googleappclient.consent_url" class="nav-link" data-scroll-target="#googleappclient.consent_url">GoogleAppClient.consent_url</a></li>
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<li><a href="#credentials.update" id="toc-credentials.update" class="nav-link" data-scroll-target="#credentials.update">Credentials.update</a></li>
<li><a href="#credentials.update-1" id="toc-credentials.update-1" class="nav-link" data-scroll-target="#credentials.update-1">Credentials.update</a></li>
<li><a href="#credentials.save" id="toc-credentials.save" class="nav-link" data-scroll-target="#credentials.save">Credentials.save</a></li>
<li><a href="#credentials.save-1" id="toc-credentials.save-1" class="nav-link" data-scroll-target="#credentials.save-1">Credentials.save</a></li>
<li><a href="#load_creds" id="toc-load_creds" class="nav-link" data-scroll-target="#load_creds">load_creds</a></li>
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<div class="toc-actions"><ul><li><a href="https://github.com/AnswerDotAI/fasthtml/issues/new" class="toc-action"><i class="bi bi-github"></i>Report an issue</a></li></ul></div><div class="quarto-alternate-formats"><h2>Other Formats</h2><ul><li><a href="oauth.html.md"><i class="bi bi-file-code"></i>CommonMark</a></li></ul></div></nav>
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<h1 class="title">OAuth</h1>
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<div class="description">
Basic scaffolding for handling OAuth
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<!-- WARNING: THIS FILE WAS AUTOGENERATED! DO NOT EDIT! -->
<p>See the <a href="https://www.fastht.ml/docs/explains/oauth.html">docs page</a> for an explanation of how to use this.</p>
<div id="526a5ac8" class="cell">
<div class="sourceCode cell-code" id="cb1"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="im">from</span> IPython.display <span class="im">import</span> Markdown</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
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<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L23" target="_blank" style="float:right; font-size:smaller">source</a></p>
<section id="googleappclient" class="level3">
<h3 class="anchored" data-anchor-id="googleappclient">GoogleAppClient</h3>
<blockquote class="blockquote">
<pre><code> GoogleAppClient (client_id, client_secret, code=None, scope=None,
project_id=None, **kwargs)</code></pre>
</blockquote>
<p><em>A <code>WebApplicationClient</code> for Google oauth2</em></p>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L42" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="githubappclient" class="level3">
<h3 class="anchored" data-anchor-id="githubappclient">GitHubAppClient</h3>
<blockquote class="blockquote">
<pre><code> GitHubAppClient (client_id, client_secret, code=None, scope=None,
**kwargs)</code></pre>
</blockquote>
<p><em>A <code>WebApplicationClient</code> for GitHub oauth2</em></p>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L54" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="huggingfaceclient" class="level3">
<h3 class="anchored" data-anchor-id="huggingfaceclient">HuggingFaceClient</h3>
<blockquote class="blockquote">
<pre><code> HuggingFaceClient (client_id, client_secret, code=None, scope=None,
state=None, **kwargs)</code></pre>
</blockquote>
<p><em>A <code>WebApplicationClient</code> for HuggingFace oauth2</em></p>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L67" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="discordappclient" class="level3">
<h3 class="anchored" data-anchor-id="discordappclient">DiscordAppClient</h3>
<blockquote class="blockquote">
<pre><code> DiscordAppClient (client_id, client_secret, is_user=False, perms=0,
scope=None, **kwargs)</code></pre>
</blockquote>
<p><em>A <code>WebApplicationClient</code> for Discord oauth2</em></p>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L98" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="auth0appclient" class="level3">
<h3 class="anchored" data-anchor-id="auth0appclient">Auth0AppClient</h3>
<blockquote class="blockquote">
<pre><code> Auth0AppClient (domain, client_id, client_secret, code=None, scope=None,
redirect_uri='', **kwargs)</code></pre>
</blockquote>
<p><em>A <code>WebApplicationClient</code> for Auth0 OAuth2</em></p>
<div id="109bc501" class="cell">
<div class="sourceCode cell-code" id="cb7"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a><span class="co"># cli = GoogleAppClient.from_file('client_secret.json')</span></span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
</div>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L117" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="webapplicationclient.login_link" class="level3">
<h3 class="anchored" data-anchor-id="webapplicationclient.login_link">WebApplicationClient.login_link</h3>
<blockquote class="blockquote">
<pre><code> WebApplicationClient.login_link (redirect_uri, scope=None, state=None,
**kwargs)</code></pre>
</blockquote>
<p><em>Get a login link for this client</em></p>
<p>Generating a login link that sends the user to the OAuth provider is done with <code>client.login_link()</code>.</p>
<p>It can sometimes be useful to pass state to the OAuth provider, so that when the user returns you can pick up where they left off. This can be done by passing the <code>state</code> parameter.</p>
<div id="f4dff5df" class="cell">
<div class="sourceCode cell-code" id="cb9"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb9-1"><a href="#cb9-1" aria-hidden="true" tabindex="-1"></a><span class="im">from</span> fasthtml.jupyter <span class="im">import</span> <span class="op">*</span></span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
</div>
<div id="bc9ce02a" class="cell">
<div class="sourceCode cell-code" id="cb10"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb10-1"><a href="#cb10-1" aria-hidden="true" tabindex="-1"></a>redir_path <span class="op">=</span> <span class="st">'/redirect'</span></span>
<span id="cb10-2"><a href="#cb10-2" aria-hidden="true" tabindex="-1"></a>port <span class="op">=</span> <span class="dv">8000</span></span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
</div>
<div id="b4dd67a9" class="cell">
<div class="sourceCode cell-code" id="cb11"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a>app,rt <span class="op">=</span> fast_app()</span>
<span id="cb11-2"><a href="#cb11-2" aria-hidden="true" tabindex="-1"></a>server <span class="op">=</span> JupyUvi(app, port<span class="op">=</span>port)</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
<div class="cell-output cell-output-display">
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</div>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L124" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="redir_url" class="level3">
<h3 class="anchored" data-anchor-id="redir_url">redir_url</h3>
<blockquote class="blockquote">
<pre><code> redir_url (request, redir_path, scheme=None)</code></pre>
</blockquote>
<p><em>Get the redir url for the host in <code>request</code></em></p>
<div id="7b86cd0c" class="cell">
<div class="sourceCode cell-code" id="cb13"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb13-1"><a href="#cb13-1" aria-hidden="true" tabindex="-1"></a><span class="at">@rt</span></span>
<span id="cb13-2"><a href="#cb13-2" aria-hidden="true" tabindex="-1"></a><span class="kw">def</span> index(request):</span>
<span id="cb13-3"><a href="#cb13-3" aria-hidden="true" tabindex="-1"></a> redir <span class="op">=</span> redir_url(request, redir_path)</span>
<span id="cb13-4"><a href="#cb13-4" aria-hidden="true" tabindex="-1"></a> <span class="cf">return</span> A(<span class="st">'login'</span>, href<span class="op">=</span>cli.login_link(redir), target<span class="op">=</span><span class="st">'_blank'</span>)</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
</div>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L131" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="appclient.parse_response" class="level3">
<h3 class="anchored" data-anchor-id="appclient.parse_response">_AppClient.parse_response</h3>
<blockquote class="blockquote">
<pre><code> _AppClient.parse_response (code, redirect_uri)</code></pre>
</blockquote>
<p><em>Get the token from the oauth2 server response</em></p>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L141" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="appclient.get_info" class="level3">
<h3 class="anchored" data-anchor-id="appclient.get_info">_AppClient.get_info</h3>
<blockquote class="blockquote">
<pre><code> _AppClient.get_info (token=None)</code></pre>
</blockquote>
<p><em>Get the info for authenticated user</em></p>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L149" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="appclient.retr_info" class="level3">
<h3 class="anchored" data-anchor-id="appclient.retr_info">_AppClient.retr_info</h3>
<blockquote class="blockquote">
<pre><code> _AppClient.retr_info (code, redirect_uri)</code></pre>
</blockquote>
<p><em>Combines <code>parse_response</code> and <code>get_info</code></em></p>
<div id="c705ea8d" class="cell">
<div class="sourceCode cell-code" id="cb17"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb17-1"><a href="#cb17-1" aria-hidden="true" tabindex="-1"></a><span class="at">@rt</span>(redir_path)</span>
<span id="cb17-2"><a href="#cb17-2" aria-hidden="true" tabindex="-1"></a><span class="kw">def</span> get(request, code:<span class="bu">str</span>):</span>
<span id="cb17-3"><a href="#cb17-3" aria-hidden="true" tabindex="-1"></a> redir <span class="op">=</span> redir_url(request, redir_path)</span>
<span id="cb17-4"><a href="#cb17-4" aria-hidden="true" tabindex="-1"></a> info <span class="op">=</span> cli.retr_info(code, redir)</span>
<span id="cb17-5"><a href="#cb17-5" aria-hidden="true" tabindex="-1"></a> <span class="cf">return</span> P(<span class="ss">f'Login successful for </span><span class="sc">{</span>info[<span class="st">"name"</span>]<span class="sc">}</span><span class="ss">!'</span>)</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
</div>
<div id="ce6f838d" class="cell">
<div class="sourceCode cell-code" id="cb18"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb18-1"><a href="#cb18-1" aria-hidden="true" tabindex="-1"></a><span class="co"># HTMX()</span></span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
</div>
<div id="8c2d2261" class="cell">
<div class="sourceCode cell-code" id="cb19"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb19-1"><a href="#cb19-1" aria-hidden="true" tabindex="-1"></a>server.stop()</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
</div>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L156" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="appclient.retr_id" class="level3">
<h3 class="anchored" data-anchor-id="appclient.retr_id">_AppClient.retr_id</h3>
<blockquote class="blockquote">
<pre><code> _AppClient.retr_id (code, redirect_uri)</code></pre>
</blockquote>
<p><em>Call <code>retr_info</code> and then return id/subscriber value</em></p>
<p>After logging in via the provider, the user will be redirected back to the supplied redirect URL. The request to this URL will contain a <code>code</code> parameter, which is used to get an access token and fetch the user’s profile information. See <a href="https://www.fastht.ml/docs/explains/oauth.html">the explanation here</a> for a worked example. You can either:</p>
<ul>
<li>Use client.retr_info(code) to get all the profile information, or</li>
<li>Use client.retr_id(code) to get just the user’s ID.</li>
</ul>
<p>After either of these calls, you can also access the access token (used to revoke access, for example) with <code>client.token["access_token"]</code>.</p>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L162" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="url_match" class="level3">
<h3 class="anchored" data-anchor-id="url_match">url_match</h3>
<blockquote class="blockquote">
<pre><code> url_match (url, patterns=('^(localhost|127\\.0\\.0\\.1)(:\\d+)?$',))</code></pre>
</blockquote>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L166" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="oauth" class="level3">
<h3 class="anchored" data-anchor-id="oauth">OAuth</h3>
<blockquote class="blockquote">
<pre><code> OAuth (app, cli, skip=None, redir_path='/redirect', error_path='/error',
logout_path='/logout', login_path='/login', https=True,
http_patterns=('^(localhost|127\\.0\\.0\\.1)(:\\d+)?$',))</code></pre>
</blockquote>
<p><em>Initialize self. See help(type(self)) for accurate signature.</em></p>
</section>
<section id="google-helpers" class="level3">
<h3 class="anchored" data-anchor-id="google-helpers">Google helpers</h3>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L216" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="googleappclient.consent_url" class="level3">
<h3 class="anchored" data-anchor-id="googleappclient.consent_url">GoogleAppClient.consent_url</h3>
<blockquote class="blockquote">
<pre><code> GoogleAppClient.consent_url (proj=None)</code></pre>
</blockquote>
<p><em>Get Google OAuth consent screen URL</em></p>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L216" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="googleappclient.consent_url-1" class="level3">
<h3 class="anchored" data-anchor-id="googleappclient.consent_url-1">GoogleAppClient.consent_url</h3>
<blockquote class="blockquote">
<pre><code> GoogleAppClient.consent_url (proj=None)</code></pre>
</blockquote>
<p><em>Get Google OAuth consent screen URL</em></p>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L224" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="credentials.update" class="level3">
<h3 class="anchored" data-anchor-id="credentials.update">Credentials.update</h3>
<blockquote class="blockquote">
<pre><code> Credentials.update ()</code></pre>
</blockquote>
<p><em>Refresh the credentials if they are expired, and return them</em></p>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L224" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="credentials.update-1" class="level3">
<h3 class="anchored" data-anchor-id="credentials.update-1">Credentials.update</h3>
<blockquote class="blockquote">
<pre><code> Credentials.update ()</code></pre>
</blockquote>
<p><em>Refresh the credentials if they are expired, and return them</em></p>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L231" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="credentials.save" class="level3">
<h3 class="anchored" data-anchor-id="credentials.save">Credentials.save</h3>
<blockquote class="blockquote">
<pre><code> Credentials.save (fname)</code></pre>
</blockquote>
<p><em>Save credentials to <code>fname</code></em></p>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L231" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="credentials.save-1" class="level3">
<h3 class="anchored" data-anchor-id="credentials.save-1">Credentials.save</h3>
<blockquote class="blockquote">
<pre><code> Credentials.save (fname)</code></pre>
</blockquote>
<p><em>Save credentials to <code>fname</code></em></p>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L236" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="load_creds" class="level3">
<h3 class="anchored" data-anchor-id="load_creds">load_creds</h3>
<blockquote class="blockquote">
<pre><code> load_creds (fname)</code></pre>
</blockquote>
<p><em>Load credentials from <code>fname</code></em></p>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L242" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="googleappclient.creds" class="level3">
<h3 class="anchored" data-anchor-id="googleappclient.creds">GoogleAppClient.creds</h3>
<blockquote class="blockquote">
<pre><code> GoogleAppClient.creds ()</code></pre>
</blockquote>
<p><em>Create <code>Credentials</code> from the client, refreshing if needed</em></p>
<hr>
<p><a href="https://github.com/AnswerDotAI/fasthtml/blob/main/fasthtml/oauth.py#L242" target="_blank" style="float:right; font-size:smaller">source</a></p>
</section>
<section id="googleappclient.creds-1" class="level3">
<h3 class="anchored" data-anchor-id="googleappclient.creds-1">GoogleAppClient.creds</h3>
<blockquote class="blockquote">
<pre><code> GoogleAppClient.creds ()</code></pre>
</blockquote>
<p><em>Create <code>Credentials</code> from the client, refreshing if needed</em></p>
</section>
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container.appendChild(child.cloneNode(true));
break;
}
}
if (window.Quarto?.typesetMath) {
window.Quarto.typesetMath(container);
}
return container.innerHTML
} else {
if (window.Quarto?.typesetMath) {
window.Quarto.typesetMath(note);
}
return note.innerHTML;
}
} else {
// Remove any anchor links if they are present
const anchorLink = note.querySelector('a.anchorjs-link');
if (anchorLink) {
anchorLink.remove();
}
if (window.Quarto?.typesetMath) {
window.Quarto.typesetMath(note);
}
if (note.classList.contains("callout")) {
return note.outerHTML;
} else {
return note.innerHTML;
}
}
}
for (var i=0; i<xrefs.length; i++) {
const xref = xrefs[i];
tippyHover(xref, undefined, function(instance) {
instance.disable();
let url = xref.getAttribute('href');
let hash = undefined;
if (url.startsWith('#')) {
hash = url;
} else {
try { hash = new URL(url).hash; } catch {}
}
if (hash) {
const id = hash.replace(/^#\/?/, "");
const note = window.document.getElementById(id);
if (note !== null) {
try {
const html = processXRef(id, note.cloneNode(true));
instance.setContent(html);
} finally {
instance.enable();
instance.show();
}
} else {
// See if we can fetch this
fetch(url.split('#')[0])
.then(res => res.text())
.then(html => {
const parser = new DOMParser();
const htmlDoc = parser.parseFromString(html, "text/html");
const note = htmlDoc.getElementById(id);
if (note !== null) {
const html = processXRef(id, note);
instance.setContent(html);
}
}).finally(() => {
instance.enable();
instance.show();
});
}
} else {
// See if we can fetch a full url (with no hash to target)
// This is a special case and we should probably do some content thinning / targeting
fetch(url)
.then(res => res.text())
.then(html => {
const parser = new DOMParser();
const htmlDoc = parser.parseFromString(html, "text/html");
const note = htmlDoc.querySelector('main.content');
if (note !== null) {
// This should only happen for chapter cross references
// (since there is no id in the URL)
// remove the first header
if (note.children.length > 0 && note.children[0].tagName === "HEADER") {
note.children[0].remove();
}
const html = processXRef(null, note);
instance.setContent(html);
}
}).finally(() => {
instance.enable();
instance.show();
});
}
}, function(instance) {
});
}
let selectedAnnoteEl;
const selectorForAnnotation = ( cell, annotation) => {
let cellAttr = 'data-code-cell="' + cell + '"';
let lineAttr = 'data-code-annotation="' + annotation + '"';
const selector = 'span[' + cellAttr + '][' + lineAttr + ']';
return selector;
}
const selectCodeLines = (annoteEl) => {
const doc = window.document;
const targetCell = annoteEl.getAttribute("data-target-cell");
const targetAnnotation = annoteEl.getAttribute("data-target-annotation");
const annoteSpan = window.document.querySelector(selectorForAnnotation(targetCell, targetAnnotation));
const lines = annoteSpan.getAttribute("data-code-lines").split(",");
const lineIds = lines.map((line) => {
return targetCell + "-" + line;
})
let top = null;
let height = null;
let parent = null;
if (lineIds.length > 0) {
//compute the position of the single el (top and bottom and make a div)
const el = window.document.getElementById(lineIds[0]);
top = el.offsetTop;
height = el.offsetHeight;
parent = el.parentElement.parentElement;
if (lineIds.length > 1) {
const lastEl = window.document.getElementById(lineIds[lineIds.length - 1]);
const bottom = lastEl.offsetTop + lastEl.offsetHeight;
height = bottom - top;
}
if (top !== null && height !== null && parent !== null) {
// cook up a div (if necessary) and position it
let div = window.document.getElementById("code-annotation-line-highlight");
if (div === null) {
div = window.document.createElement("div");
div.setAttribute("id", "code-annotation-line-highlight");
div.style.position = 'absolute';
parent.appendChild(div);
}
div.style.top = top - 2 + "px";
div.style.height = height + 4 + "px";
div.style.left = 0;
let gutterDiv = window.document.getElementById("code-annotation-line-highlight-gutter");
if (gutterDiv === null) {
gutterDiv = window.document.createElement("div");
gutterDiv.setAttribute("id", "code-annotation-line-highlight-gutter");
gutterDiv.style.position = 'absolute';
const codeCell = window.document.getElementById(targetCell);
const gutter = codeCell.querySelector('.code-annotation-gutter');
gutter.appendChild(gutterDiv);
}
gutterDiv.style.top = top - 2 + "px";
gutterDiv.style.height = height + 4 + "px";
}
selectedAnnoteEl = annoteEl;
}
};
const unselectCodeLines = () => {
const elementsIds = ["code-annotation-line-highlight", "code-annotation-line-highlight-gutter"];
elementsIds.forEach((elId) => {
const div = window.document.getElementById(elId);
if (div) {
div.remove();
}
});
selectedAnnoteEl = undefined;
};
// Handle positioning of the toggle
window.addEventListener(
"resize",
throttle(() => {
elRect = undefined;
if (selectedAnnoteEl) {
selectCodeLines(selectedAnnoteEl);
}
}, 10)
);
function throttle(fn, ms) {
let throttle = false;
let timer;
return (...args) => {
if(!throttle) { // first call gets through
fn.apply(this, args);
throttle = true;
} else { // all the others get throttled
if(timer) clearTimeout(timer); // cancel #2
timer = setTimeout(() => {
fn.apply(this, args);
timer = throttle = false;
}, ms);
}
};
}
// Attach click handler to the DT
const annoteDls = window.document.querySelectorAll('dt[data-target-cell]');
for (const annoteDlNode of annoteDls) {
annoteDlNode.addEventListener('click', (event) => {
const clickedEl = event.target;
if (clickedEl !== selectedAnnoteEl) {
unselectCodeLines();
const activeEl = window.document.querySelector('dt[data-target-cell].code-annotation-active');
if (activeEl) {
activeEl.classList.remove('code-annotation-active');
}
selectCodeLines(clickedEl);
clickedEl.classList.add('code-annotation-active');
} else {
// Unselect the line
unselectCodeLines();
clickedEl.classList.remove('code-annotation-active');
}
});
}
const findCites = (el) => {
const parentEl = el.parentElement;
if (parentEl) {
const cites = parentEl.dataset.cites;
if (cites) {
return {
el,
cites: cites.split(' ')
};
} else {
return findCites(el.parentElement)
}
} else {
return undefined;
}
};
var bibliorefs = window.document.querySelectorAll('a[role="doc-biblioref"]');
for (var i=0; i<bibliorefs.length; i++) {
const ref = bibliorefs[i];
const citeInfo = findCites(ref);
if (citeInfo) {
tippyHover(citeInfo.el, function() {
var popup = window.document.createElement('div');
citeInfo.cites.forEach(function(cite) {
var citeDiv = window.document.createElement('div');
citeDiv.classList.add('hanging-indent');
citeDiv.classList.add('csl-entry');
var biblioDiv = window.document.getElementById('ref-' + cite);
if (biblioDiv) {
citeDiv.innerHTML = biblioDiv.innerHTML;
}
popup.appendChild(citeDiv);
});
return popup.innerHTML;
});
}
}
});
</script>
</div> <!-- /content -->
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