79 lines
2.1 KiB
TypeScript
79 lines
2.1 KiB
TypeScript
// 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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import { bridgeCommand } from "lib/bridgecommand";
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import { elementIsBlock, getBlockElement } from "lib/dom";
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// import { inCodable } from "./toolbar";
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// import { wrap } from "./wrap";
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export function caretToEnd(node: Node): void {
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const range = document.createRange();
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range.selectNodeContents(node);
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range.collapse(false);
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const selection = (node.getRootNode() as Document | ShadowRoot).getSelection()!;
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selection.removeAllRanges();
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selection.addRange(range);
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}
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function containsInlineContent(element: Element): boolean {
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for (const child of element.children) {
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if (elementIsBlock(child) || !containsInlineContent(child)) {
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return false;
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}
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}
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return true;
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}
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export class Editable extends HTMLElement {
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set fieldHTML(content: string) {
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this.innerHTML = content;
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if (content.length > 0 && containsInlineContent(this)) {
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this.appendChild(document.createElement("br"));
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}
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}
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get fieldHTML(): string {
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return containsInlineContent(this) && this.innerHTML.endsWith("<br>")
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? this.innerHTML.slice(0, -4) // trim trailing <br>
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: this.innerHTML;
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}
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connectedCallback(): void {
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this.setAttribute("contenteditable", "");
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}
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focus(): void {
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super.focus();
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// TODO
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// inCodable.set(false);
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}
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caretToEnd(): void {
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caretToEnd(this);
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}
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surroundSelection(before: string, after: string): void {
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// TODO
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// wrap(before, after);
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}
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onEnter(event: KeyboardEvent): void {
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if (
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!getBlockElement(this.getRootNode() as Document | ShadowRoot) !==
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event.shiftKey
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) {
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event.preventDefault();
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document.execCommand("insertLineBreak");
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}
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}
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onPaste(event: ClipboardEvent): void {
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bridgeCommand("paste");
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event.preventDefault();
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}
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}
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customElements.define("anki-editable", Editable);
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