76 lines
2.0 KiB
Svelte
76 lines
2.0 KiB
Svelte
<!--
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Copyright: Ankitects Pty Ltd and contributors
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License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
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-->
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<script lang="typescript">
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import { onMount, createEventDispatcher } from "svelte";
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import { ChangeTimer } from "./change-timer";
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import { CodeMirror, latex, baseOptions } from "./codeMirror";
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export let initialValue: string;
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const codeMirrorOptions = {
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mode: latex,
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...baseOptions,
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};
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let codeMirror: CodeMirror.EditorFromTextArea;
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const changeTimer = new ChangeTimer();
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const dispatch = createEventDispatcher();
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function onInput() {
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changeTimer.schedule(
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() => dispatch("update", { mathjax: codeMirror.getValue() }),
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400
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);
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}
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function onBlur() {
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changeTimer.fireImmediately();
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}
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function openCodemirror(textarea: HTMLTextAreaElement): void {
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codeMirror = CodeMirror.fromTextArea(textarea, codeMirrorOptions);
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codeMirror.on("change", onInput);
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codeMirror.on("blur", onBlur);
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}
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let textarea: HTMLTextAreaElement;
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onMount(() => {
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codeMirror.focus();
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codeMirror.setCursor(codeMirror.lineCount(), 0);
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const codeMirrorElement = textarea.nextElementSibling!;
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codeMirrorElement.classList.add("mathjax-editor");
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});
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</script>
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<div
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on:click|stopPropagation
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on:focus|stopPropagation
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on:focusin|stopPropagation
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on:keydown|stopPropagation
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on:keyup|stopPropagation
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on:mousedown|preventDefault|stopPropagation
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on:mouseup|stopPropagation
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on:paste|stopPropagation
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>
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<!-- TODO no focusin for now, as EditingArea will defer to Editable/Codable -->
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<textarea
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bind:this={textarea}
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value={initialValue}
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on:input={onInput}
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use:openCodemirror
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/>
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</div>
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<style lang="scss">
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/* TODO there is global CSS in fields.scss */
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div :global(.mathjax-editor) {
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border-radius: 0;
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border-width: 0 1px;
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border-color: var(--medium-border);
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}
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</style>
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