@atlaskit/editor-plugin-code-block-advanced/dist/esm/nodeviews/extensions/tripleClickExtension.js

CodeBlockAdvanced plugin for @atlaskit/editor-core

import { EditorSelection } from '@codemirror/state';
import { EditorView as CodeMirror } from '@codemirror/view';

/**
 * To have consistent behaviour with previous code block when a triple click occurs in the editor
 * we should select the entire code block rather than the line.
 *
 * @returns CodeMirror extension
 */
export var tripleClickSelectAllExtension = function tripleClickSelectAllExtension() {
  return CodeMirror.mouseSelectionStyle.of(function (view, event) {
    // Check for a triple-click and avoid non-main "button" events
    // https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent/button
    // https://developer.mozilla.org/en-US/docs/Web/API/UIEvent/detail
    if (event.detail !== 3 || event.button !== 0) {
      return null;
    }
    return {
      // Select the entire document
      get: function get() {
        return EditorSelection.single(0, view.state.doc.length);
      },
      update: function update() {}
    };
  });
};