From dec047c9fbceb85c668970bf6e9dae0588bfd104 Mon Sep 17 00:00:00 2001
From: Tevin <tingquanren@163.com>
Date: Sun, 15 Aug 2021 15:22:13 +0800
Subject: [PATCH] 对接App跨端通讯机制

---
 forms/imagePicker/CImagePicker.vue |   83 +++++++++++++++++++++++++++++------------
 1 files changed, 59 insertions(+), 24 deletions(-)

diff --git a/forms/imagePicker/CImagePicker.vue b/forms/imagePicker/CImagePicker.vue
index a9da799..108a27a 100644
--- a/forms/imagePicker/CImagePicker.vue
+++ b/forms/imagePicker/CImagePicker.vue
@@ -23,18 +23,7 @@
             :onFail="evt=>handleFail(evt)"
             :onImageClick="(index, file)=>handleImgView(index,file)"
         />
-        <AtCurtain
-            class="c-image-picker-view"
-            closeBtnPosition="top-right"
-            :isOpened="showImg"
-            :onClose="evt=>handleImgClose()"
-        >
-            <image
-                class="img"
-                mode="aspectFit"
-                :src="curtainImg"
-            />
-        </AtCurtain>
+        <CImageCompressor ref="compressor" />
     </view>
 </template>
 
@@ -42,12 +31,14 @@
 import Taro from '@tarojs/taro';
 import { $ } from '@tarojs/extend';
 import { AtInput, AtImagePicker, AtCurtain } from 'taro-ui-vue';
-import { $fetcherCommon } from '@fetchers/FCommon';
+import { $fetchCommon } from '@fetchers/FCommon';
+import CImageCompressor from './CImageCompressor.vue';
 import './cImagePicker.scss';
 
 export default {
     name: 'CImagePicker',
     components: {
+        CImageCompressor,
         AtInput,
         AtImagePicker,
         AtCurtain,
@@ -57,10 +48,7 @@
         itemRes: Object,
     },
     data() {
-        return {
-            showImg: false,
-            curtainImg: '',
-        };
+        return {};
     },
     computed: {
         files() {
@@ -76,7 +64,7 @@
         },
     },
     methods: {
-        handleChange(files, operationType, index) {
+        triggerChange(files) {
             const value = [];
             files.forEach(file => {
                 if (file.type === 'btn') {
@@ -86,14 +74,61 @@
             });
             this.itemRes.onChange(value);
         },
+        handleChange(files, operationType, index) {
+            // 添加图片
+            if (operationType === 'add') {
+                const needs = files
+                    .map((file, needIndex) => {
+                        const fileInfo = file.file;
+                        // 没有 file 信息对象,或者不是 blob 类型
+                        if (!fileInfo || fileInfo.path.indexOf('blob') < 0) {
+                            return false;
+                        }
+                        // 尺寸小于 2M 的图片
+                        if (fileInfo.size < 1 * 1024 * 1024) {
+                            return false;
+                        }
+                        return [fileInfo, needIndex];
+                    })
+                    .filter(Boolean);
+                // 存在需要压缩的图片,一次性压缩
+                if (needs.length > 0) {
+                    const files2 = [...files];
+                    const needPaths = needs.map(need => need[0].path);
+                    this.$refs.compressor.$compress(needPaths, compressedFiles => {
+                        compressedFiles.forEach((cpPath, cpIndex) => {
+                            const filesIndex = needs[cpIndex][1];
+                            files2[filesIndex] = {
+                                url: cpPath.compress,
+                            };
+                        });
+                        this.triggerChange(files2);
+                    });
+                }
+                // 不存在,直接显示
+                else {
+                    this.triggerChange(files);
+                }
+            }
+            // 删除图片,直接显示
+            else {
+                this.triggerChange(files);
+            }
+        },
         handleImgView(index, file) {
-            this.curtainImg = file.url;
-            this.showImg = true;
+            const urls = this.files
+                .map(file => (file.type === 'btn' ? false : file.url))
+                .filter(Boolean);
+            Taro.previewImage({
+                current: file.url, // 当前显示图片的http链接
+                urls, // 需要预览的图片http链接列表
+            });
         },
         handleImgClose() {
             this.showImg = false;
         },
         handleFail(msg) {
+            console.log(msg);
             Taro.showToast({
                 title: msg,
                 icon: 'none',
@@ -102,14 +137,14 @@
             });
         },
         $uploadImage(callback) {
-            const url = $fetcherCommon.getUploadImgURL();
+            const url = $fetchCommon.getUploadImgURL();
             const uploadTeam = [];
             const imgs = [];
             this.files.forEach(file => {
                 if (file.type === 'btn') {
                     return;
                 }
-                // blob 二进制文件才上传
+                // blob 临时文件才上传
                 if (file.url.indexOf('blob') >= 0) {
                     uploadTeam.push(
                         new Promise((resolve, reject) => {
@@ -125,13 +160,13 @@
                                             : res.data;
                                     if (res2.state.code === 2000) {
                                         resolve(
-                                            $fetcherCommon.transImgPath(
+                                            $fetchCommon.transImgPath(
                                                 'fix',
                                                 res2.data.src
                                             )
                                         );
                                     } else {
-                                        reject({ message: 'res2.state.msg' });
+                                        reject({ message: res2.state.msg });
                                     }
                                 },
                                 cancel() {

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