102 lines
2.6 KiB
Svelte
102 lines
2.6 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="ts">
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import type { Writable } from "svelte/store";
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import { updateAllState } from "../components/WithState.svelte";
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import { saveSelection, restoreSelection } from "../domlib/location";
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import { on, preventDefault } from "../lib/events";
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import { caretToEnd } from "../lib/dom";
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import { registerShortcut } from "../lib/shortcuts";
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export let nodes: Writable<DocumentFragment>;
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export let resolve: (editable: HTMLElement) => void;
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export let mirror: (
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editable: HTMLElement,
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params: { store: Writable<DocumentFragment> },
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) => void;
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export let inputManager: (editable: HTMLElement) => void;
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let removeOnFocus: () => void;
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let removeOnPointerdown: () => void;
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function onBlur(): void {
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const location = saveSelection(editable);
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removeOnFocus = on(
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editable,
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"focus",
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() => {
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if (location) {
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try {
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restoreSelection(editable, location);
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} catch {
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caretToEnd(editable);
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}
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}
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},
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{ once: true },
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);
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removeOnPointerdown = on(editable, "pointerdown", () => removeOnFocus?.(), {
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once: true,
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});
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}
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/* must execute before DOMMirror */
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function saveLocation(editable: HTMLElement) {
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const removeOnBlur = on(editable, "blur", onBlur);
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return {
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destroy() {
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removeOnBlur();
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removeOnFocus?.();
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removeOnPointerdown?.();
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},
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};
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}
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let editable: HTMLElement;
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$: if (editable) {
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for (const keyCombination of [
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"Control+B",
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"Control+U",
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"Control+I",
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"Control+R",
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]) {
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registerShortcut(preventDefault, keyCombination, editable);
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}
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}
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</script>
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<anki-editable
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contenteditable="true"
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bind:this={editable}
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use:resolve
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use:saveLocation
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use:mirror={{ store: nodes }}
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use:inputManager
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on:focus
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on:blur
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on:click={updateAllState}
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on:keyup={updateAllState}
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/>
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<style lang="scss">
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anki-editable {
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display: block;
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overflow-wrap: break-word;
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overflow: auto;
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padding: 6px;
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&:focus {
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outline: none;
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}
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}
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/* editable-base.scss contains styling targeting user HTML */
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</style>
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