anki/ts/editor/MathjaxHandleEditor.svelte
2021-09-15 13:45:19 +02:00

62 lines
1.7 KiB
Svelte

<!--
Copyright: Ankitects Pty Ltd and contributors
License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
-->
<script lang="typescript">
import { onMount, createEventDispatcher } from "svelte";
import { ChangeTimer } from "./change-timer";
import { CodeMirror, latex, baseOptions } from "./codeMirror";
export let initialValue: string;
const codeMirrorOptions = {
mode: latex,
...baseOptions,
};
let codeMirror: CodeMirror.EditorFromTextArea;
const changeTimer = new ChangeTimer();
function onInput() {
changeTimer.schedule(
() => dispatch("update", { mathjax: codeMirror.getValue() }),
400
);
}
function openCodemirror(textarea: HTMLTextAreaElement): void {
codeMirror = CodeMirror.fromTextArea(textarea, codeMirrorOptions);
codeMirror.on("change", onInput);
}
const dispatch = createEventDispatcher();
let textarea: HTMLTextAreaElement;
onMount(() => {
codeMirror.focus();
codeMirror.setCursor(codeMirror.lineCount(), 0);
});
</script>
<!-- <textarea bind:value use:openCodemirror /> -->
<div
on:click|stopPropagation
on:focus|stopPropagation
on:keydown|stopPropagation
on:focusin|stopPropagation
on:keyup|stopPropagation
on:mouseup|stopPropagation
>
<!-- TODO no focusin for now, as EditingArea will defer to Editable/Codable -->
<textarea
bind:this={textarea}
value={initialValue}
on:mouseup|preventDefault|stopPropagation
on:keyup|stopPropagation
on:click|stopPropagation
on:focusin|stopPropagation
on:input={onInput}
use:openCodemirror
/>
</div>