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resources/app/common/prosemirror/schema/link-mark.mjs

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+import SchemaDefinition from "./schema-definition.mjs";
+import {mergeObject} from "../../utils/helpers.mjs";
+
+/**
+ * A class responsible for encapsulating logic around link marks in the ProseMirror schema.
+ * @extends {SchemaDefinition}
+ */
+export default class LinkMark extends SchemaDefinition {
+  /** @override */
+  static tag = "a";
+
+  /* -------------------------------------------- */
+
+  /** @override */
+  static get attrs() {
+    return {
+      href: { default: null },
+      title: { default: null }
+    }
+  }
+
+  /* -------------------------------------------- */
+
+  /** @override */
+  static getAttrs(el) {
+    if ( (el.children.length === 1) && (el.children[0]?.tagName === "IMG") ) return false;
+    return { href: el.href, title: el.title };
+  }
+
+  /* -------------------------------------------- */
+
+  /** @override */
+  static toDOM(node) {
+    const { href, title } = node.attrs;
+    const attrs = {};
+    if ( href ) attrs.href = href;
+    if ( title ) attrs.title = title;
+    return ["a", attrs];
+  }
+
+  /* -------------------------------------------- */
+
+  /** @inheritdoc */
+  static make() {
+    return mergeObject(super.make(), {
+      inclusive: false
+    });
+  }
+
+  /* -------------------------------------------- */
+
+  /**
+   * Handle clicks on link marks while editing.
+   * @param {EditorView} view     The ProseMirror editor view.
+   * @param {number} pos          The position in the ProseMirror document that the click occurred at.
+   * @param {PointerEvent} event  The click event.
+   * @param {Mark} mark           The Mark instance.
+   * @returns {boolean|void}      Returns true to indicate the click was handled here and should not be propagated to
+   *                              other plugins.
+   */
+  static onClick(view, pos, event, mark) {
+    if ( (event.ctrlKey || event.metaKey) && mark.attrs.href ) window.open(mark.attrs.href, "_blank");
+    return true;
+  }
+}