Method defaultBehaviour

src/components/modules/ui.ts:505–535

* Ignore all other document's keydown events * * @param {KeyboardEvent} event - keyboard event

(event: KeyboardEvent)

   * @param {KeyboardEvent} event - keyboard event
   */
  private defaultBehaviour(event: KeyboardEvent): void {
    const { currentBlock } = this.Editor.BlockManager;
    const keyDownOnEditor = (event.target as HTMLElement).closest(`.${this.CSS.editorWrapper}`);
    const isMetaKey = event.altKey || event.ctrlKey || event.metaKey || event.shiftKey;

    /**
     * When some block is selected, but the caret is not set inside the editor, treat such keydowns as keydown on selected block.
     */
    if (currentBlock !== undefined && keyDownOnEditor === null) {
      this.Editor.BlockEvents.keydown(event);

      return;
    }

    /**
     * Ignore keydowns on editor and meta keys
     */
    if (keyDownOnEditor || (currentBlock && isMetaKey)) {
      return;
    }

    /**
     * Remove all highlights and remove caret
     */
    this.Editor.BlockManager.unsetCurrentBlock();

    /**
     * Close Toolbar
     */
    this.Editor.Toolbar.close();
  }

  /**
   * @param {KeyboardEvent} event - keyboard event