修复 微信小程序端仅插入表情包的情况下，消息发送按钮不可用的问题

components/uni-im-chat-input/uni-im-chat-input.vue

@@ -26,7 +26,7 @@
       <view class="editor-box-parent">
         <view class="editor-box">
           <uni-im-sound v-show="soundIsShow" @sendSoundMsg="sendSoundMsg" class="uni-im-sound"></uni-im-sound>
-          <uni-im-editor v-show="!soundIsShow" @input="oninput" @confirm="confirm" class="editor" ref="editor"></uni-im-editor>
+          <uni-im-editor v-show="!soundIsShow" @input="oninput" @confirm="confirm" @change="updateModelValue" class="editor" ref="editor"></uni-im-editor>
         </view>
         <slot name="about-msg"></slot>
       </view>
@@ -199,6 +199,9 @@
         this.$emit('update:modelValue', e.value)
         this.$emit('input',e)
       },
+      updateModelValue({value}) {
+        this.$emit('update:modelValue', value)
+      },
       focus() {
         // console.log('focus');
         this.$refs.editor.callRmd('$focus')

components/uni-im-editor/uni-im-editor.vue

@@ -19,7 +19,7 @@
 <script>
   import uniIm from '@/uni_modules/uni-im/sdk/index.js';
   export default {
-    emits: ["input", "confirm"],
+    emits: ["input", "confirm", "change"],
     data() {
       return {
         callRmdParam: [],
@@ -43,6 +43,15 @@
         default: 140
       }
     },
+    // #ifdef MP
+    watch: {
+      textareaValue(val){
+        this.$emit("change",{
+          value:val
+        })
+      }
+    },
+    // #endif
     mounted() {
       // 与rmd通讯专用
       this.callRmd = async (funcName, ...params) => {