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import 'preact/debug';
import 'core-js/stable';
import 'regenerator-runtime/runtime';
import { h, Fragment, Component, render } from 'preact';
import { GraphContainer } from './graph';
import { Menu, Discussion, Selection } from './ui';
import { UserContainer } from './user';
class SelectionContainer extends Component {
state = {
selection: [],
};
toggle = (id) => {
const { selection } = this.state;
if (selection.indexOf(id) < 0)
this.setState({ selection: [ ...selection, id ] });
else
this.setState({ selection: selection.filter(i => i !== id) });
}
render() {
return this.props.render({
...this.state,
toggleSelected: this.toggle,
});
}
}
class CollapseContainer extends Component {
/**
* Contains the collapse-state for each node.
*
* - `false`: visible
* - `true`: implicitly hidden
* - `'explicit'`: explicitly hidden
*/
state = {};
/**
* Toggle a node's collapse-state.
* - `false` → `'explicit'`
* - `true`, `'explicit'` → `false`
*/
toggle = (id) => {
const { items } = this.props;
const state = Object.assign({}, this.state);
state[id] = state[id] ? false : 'explicit';
this.setState(this.update(items[id], state));
}
/**
* Recursively update child node's collapse-state.
*
* If a node has parents and they are all collapsed,
* mark that node as implicitly hidden (`true`).
*
* Then update all of that node's children.
*/
update(node, state) {
const { items } = this.props;
if (state[node.id] !== 'explicit') {
state[node.id] =
node.inReplyTo.length
&& node.inReplyTo.every(p => state[p.id]);
}
for (const child of node.replies)
this.update(items[child.id], state);
return state;
}
render() {
return this.props.render({
collapsed: this.state,
toggleCollapsed: this.toggle,
});
}
}
const search = new URLSearchParams(window.location.search);
const graph = search.has('graph') ? search.get('graph') : 'lib/graph.json';
let app;
if (search.has('document') || search.has('note') || search.has('graph')) {
const mode = search.has('document') ? "jsonld" : "mastodon";
const url = search.get('document') || search.get('note') || search.get('graph');
app = (
<UserContainer>
<GraphContainer
url={url}
mode={mode}
>
{({ loading, error, name, items }) => {
if (loading) {
return (
<article>
<div>loading...</div>
</article>
);
}
if (error) {
return (
<article>
<h1>error loading</h1>
<div>
<p>{error.toString()}</p>
<pre>
<code>
{error.stack}
</code>
</pre>
</div>
</article>
);
}
return (
<SelectionContainer render={({ selection, toggleSelected }) => (
<>
<CollapseContainer
items={items}
render={({ collapsed, toggleCollapsed }) => (
<Discussion
name={name}
items={items}
collapsed={collapsed}
toggleCollapsed={toggleCollapsed}
toggleSelected={toggleSelected}
/>
)}
/>
<Selection
items={selection.map(id => items[id])}
toggleSelected={toggleSelected}
/>
</>
)} />
);
}}
</GraphContainer>
</UserContainer>
);
} else {
app = (
<UserContainer>
<Menu />
</UserContainer>
);
}
render(app, document.body);
|
