EventTypes:
| "afterPreviewRender"
| "updatePreview"
| "changeMode"
| "changeTheme"
| "needChangeMode"
| "command"
| "changePreviewStyle"
| "changePreviewTabPreview"
| "changePreviewTabWrite"
| "scroll"
| "contextmenu"
| "show"
| "hide"
| "changeLanguage"
| "changeToolbarState"
| "toggleScrollSync"
| "setFocusedNode"
| "removePopupWidget"
| "query"
| "openPopup"
| "closePopup"
| "addImageBlobHook"
| "beforePreviewRender"
| "beforeConvertWysiwygToMarkdown"
| "clickWidget"
| "load"
| "loadUI"
| "change"
| "caretChange"
| "destroy"
| "focus"
| "blur"
| "keydown"
| "keyup"