native对象及属性改为只读

usr/lib/python3/dist-packages/webengine/gtk3/inject.js

@@ -3,8 +3,8 @@
  * @author yutent<yutent.io@gmail.com>
  * @date 2023/07/21 17:38:11
  */
-
+!(function () {
-const MIME_TYPES = {
+  const MIME_TYPES = {
     html: 'text/html',
     json: 'application/json',
     js: 'application/javascript',
@@ -37,31 +37,33 @@ const MIME_TYPES = {
     doc: 'application/msword',
     xlsx: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
     docx: 'application/vnd.openxmlformats-officedocument.wordprocessingml.document'
-}
+  }
-const KEYS_MAP = {
+  const KEYS_MAP = {
     shift: '<Shift>',
     ctrl: '<Ctrl>',
     alt: '<Alt>',
     super: '<Super>'
-}
+  }
 
-const NO_CALLBACK = false
+  const NO_CALLBACK = false
-const CALL_ONCE = true
+  const CALL_ONCE = true
 
-function defer() {
+  const __events__ = Symbol('events')
+
+  function defer() {
     let obj = {}
     obj.promise = new Promise((resolve, reject) => {
       obj.resolve = resolve
       obj.reject = reject
     })
     return obj
-}
+  }
 
-function rand(prefix = 'cb_') {
+  function rand(prefix = 'cb_') {
     return prefix + Math.random().toString().slice(2)
-}
+  }
 
-function handler(event, data = {}, need = CALL_ONCE) {
+  function handler(event, data = {}, need = CALL_ONCE) {
     let _ = defer()
     let callback
 
@@ -84,13 +86,13 @@ function handler(event, data = {}, need = CALL_ONCE) {
       callback
     })
     return _.promise
-}
+  }
 
-function base64(str = '') {
+  function base64(str = '') {
     return btoa(str).replace(/[+=\/]/g, '')
-}
+  }
 
-function _postMessage(data = {}, uuid = null) {
+  function _postMessage(data = {}, uuid = null) {
     let ev = new Event('message')
     Object.assign(ev, {
       data,
@@ -101,18 +103,24 @@ function _postMessage(data = {}, uuid = null) {
       }
     })
     window.dispatchEvent(ev)
-}
+  }
 
-function readonly(obj, key, value) {
+  function readonly(obj, key, value) {
     Object.defineProperty(obj, key, {
       get() {
         return value
       },
       enumerable: false
     })
-}
+  }
 
-class NativeImage {
+  function _extend(origin, options = {}) {
+    for (let k in options) {
+      readonly(origin, k, options[k])
+    }
+  }
+
+  class NativeImage {
     #origin
 
     constructor(obj) {
@@ -163,17 +171,17 @@ class NativeImage {
     toDataURL(type) {
       return this.export(type, true)
     }
-}
+  }
 
-class EventEmitter {
+  class Native {
     //
-  __events__ = Object.create(null)
+    [__events__] = Object.create(null)
 
     $on(name, fn) {
-    if (this.__events__[name]) {
+      if (this[__events__][name]) {
-      this.__events__[name].push(fn)
+        this[__events__][name].push(fn)
       } else {
-      this.__events__[name] = [fn]
+        this[__events__][name] = [fn]
       }
     }
 
@@ -183,18 +191,20 @@ class EventEmitter {
     }
 
     $off(name, fn) {
-    if (this.__events__[name]) {
+      if (this[__events__][name]) {
         if (fn) {
-        this.__events__[name] = this.__events__[name].filter(it => it !== fn)
+          this[__events__][name] = this[__events__][name].filter(
+            it => it !== fn
+          )
         } else {
-        this.__events__[name] = []
+          this[__events__][name] = []
         }
       }
     }
 
     $emit(name, ...args) {
-    if (this.__events__[name]) {
+      if (this[__events__][name]) {
-      for (let fn of this.__events__[name]) {
+        for (let fn of this[__events__][name]) {
           try {
             fn.apply(this, args)
             if (fn.__once__) {
@@ -208,15 +218,15 @@ class EventEmitter {
     }
 
     $destroy() {
-    this.__events__ = Object.create(null)
+      this[__events__] = Object.create(null)
+    }
   }
-}
 
-readonly(window, 'native', new EventEmitter())
+  readonly(window, 'native', new Native())
 
-native.$on('opener_message', (data, uuid) => _postMessage(data, uuid))
+  native.$on('opener_message', (data, uuid) => _postMessage(data, uuid))
 
-Object.assign(native, {
+  _extend(native, {
     env: '{{env}}',
     app: {
       name: '{{app_name}}',
@@ -440,7 +450,11 @@ Object.assign(native, {
         handler('window', { action: 'move', value: { x, y } }, NO_CALLBACK)
       },
       setOpacity(opacity = 1) {
-      handler('window', { action: 'set_opacity', value: opacity }, NO_CALLBACK)
+        handler(
+          'window',
+          { action: 'set_opacity', value: opacity },
+          NO_CALLBACK
+        )
       },
       alwayOnTop(setting = true) {
         handler(
@@ -487,4 +501,5 @@ Object.assign(native, {
     },
 
     handler
-})
+  })
+})()