fix(mp-baidu): add $page

packages/uni-mp-baidu/dist/uni.mp.esm.js

-import { camelize, isPlainObject, isArray, hasOwn, isFunction, extend } from '@vue/shared';
+import { isPlainObject, camelize, isArray, hasOwn, isFunction, extend } from '@vue/shared';
 import { injectHook, ref, nextTick, findComponentPropsData, toRaw, updateProps, invalidateJob, getExposeProxy, pruneComponentPropsCache } from 'vue';
 
 // lifecycle
@@ -8,6 +8,26 @@ const ON_SHOW$1 = 'onShow';
 const ON_LOAD$1 = 'onLoad';
 const ON_READY$1 = 'onReady';
 
+const encode$1 = encodeURIComponent;
+function stringifyQuery$1(obj, encodeStr = encode$1) {
+    const res = obj
+        ? Object.keys(obj)
+            .map((key) => {
+            let val = obj[key];
+            if (typeof val === undefined || val === null) {
+                val = '';
+            }
+            else if (isPlainObject(val)) {
+                val = JSON.stringify(val);
+            }
+            return encodeStr(key) + '=' + encodeStr(val);
+        })
+            .filter((x) => x.length > 0)
+            .join('&')
+        : null;
+    return res ? `?${res}` : '';
+}
+
 class EventChannel$1 {
     constructor(id, events) {
         this.id = id;
@@ -1152,15 +1172,21 @@ function parse(pageOptions) {
             this.$vm.$callHook(ON_SHOW$1);
         }
     };
-    methods.onLoad = function onLoad(args) {
+    methods.onLoad = function onLoad(query) {
         // 百度 onLoad 在 attached 之前触发，先存储 args, 在 attached 里边触发 onLoad
         if (this.$vm) {
             this._$loaded = true;
-            this.$vm.$callHook(ON_LOAD$1, args);
+            const copyQuery = extend({}, query);
+            delete copyQuery.__id__;
+            this.options = copyQuery;
+            this.pageinstance.$page = this.$page = {
+                fullPath: '/' + this.pageinstance.route + stringifyQuery$1(copyQuery),
+            };
+            this.$vm.$callHook(ON_LOAD$1, query);
             this.$vm.$callHook(ON_SHOW$1);
         }
         else {
-            this.pageinstance._$args = args;
+            this.pageinstance._$args = query;
         }
     };
 }

packages/uni-mp-baidu/src/runtime/parsePageOptions.ts

+import { extend } from '@vue/shared'
 import { MPComponentOptions, MPComponentInstance } from '@dcloudio/uni-mp-core'
-import { ON_LOAD, ON_SHOW } from '@dcloudio/uni-shared'
+import { ON_LOAD, ON_SHOW, stringifyQuery } from '@dcloudio/uni-shared'
 
 import { parse as parseComponentOptions } from './parseComponentOptions'
 
@@ -18,14 +19,24 @@ export function parse(pageOptions: MPComponentOptions) {
     }
   }
 
-  methods.onLoad = function onLoad(this: MPComponentInstance, args) {
+  methods.onLoad = function onLoad(
+    this: MPComponentInstance,
+    query: Record<string, any>
+  ) {
     // 百度 onLoad 在 attached 之前触发，先存储 args, 在 attached 里边触发 onLoad
     if (this.$vm) {
       ;(this as any)._$loaded = true
-      this.$vm.$callHook(ON_LOAD, args)
+      const copyQuery = extend({}, query)
+      delete copyQuery.__id__
+      ;(this as any).options = copyQuery
+      ;(this as any).pageinstance.$page = (this as any).$page = {
+        fullPath:
+          '/' + (this as any).pageinstance.route + stringifyQuery(copyQuery),
+      }
+      this.$vm.$callHook(ON_LOAD, query)
       this.$vm.$callHook(ON_SHOW)
     } else {
-      ;(this as any).pageinstance._$args = args
+      ;(this as any).pageinstance._$args = query
     }
   }
 }