[adapters] 增加小游戏适配部分源码

adapters/platforms/baidu/wrapper/builtin/HTMLElement.js

@@ -0,0 +1,33 @@
+/* eslint-disable */
+import { noop } from './util/index.js'
+import * as Mixin from './util/mixin'
+import Element from './Element'
+
+export default class HTMLElement extends Element {
+
+    constructor(tagName = '', level) {
+        super()
+
+        this.className = ''
+        this.childern = []
+
+        this.focus = noop
+        this.blur = noop
+
+        this.insertBefore = noop
+        this.appendChild = noop
+        this.removeChild = noop
+        this.remove = noop
+
+        this.innerHTML = ''
+
+        this.tagName = tagName.toUpperCase()
+
+        Mixin.parentNode(this, level);
+        Mixin.style(this);
+        Mixin.classList(this);
+        Mixin.clientRegion(this);
+        Mixin.offsetRegion(this);
+        Mixin.scrollRegion(this);
+    }
+}