Properties
Private _EventList
_
EventList: Map<WebViewEventType, null | Function> = new Map<WebViewEventType, Function | null>()
Private _div
_div: HTMLElement | null = null
Private _forceUpdate
_forceUpdate: boolean = true
Private _h
_h: number = 0
Private _iframe
_iframe: HTMLIFrameElement | null = null
Private _m00
_m00: number = 0
Private _m01
_m01: number = 0
Private _m04
_m04: number = 0
Private _m05
_m05: number = 0
Private _m12
_m12: number = 0
Private _m13
_m13: number = 0
Private _visible
_visible: boolean = false
Private _w
_w: number = 0
Determine whether to go back