From 12d96556919c652c9592e9e215c01f1ac58b7eb5 Mon Sep 17 00:00:00 2001
From: Tevin <tingquanren@163.com>
Date: Tue, 30 Nov 2021 17:41:32 +0800
Subject: [PATCH] 本地数据缓存，增加默认识别标记
---
forms/imagePicker/CImagePicker.vue | 211 +++++++++++++++++++++++++++++++++++++++++++---------
1 files changed, 173 insertions(+), 38 deletions(-)
diff --git a/forms/imagePicker/CImagePicker.vue b/forms/imagePicker/CImagePicker.vue
index 1ed467b..09012bd 100644
--- a/forms/imagePicker/CImagePicker.vue
+++ b/forms/imagePicker/CImagePicker.vue
@@ -7,92 +7,160 @@
<view class="c-image-picker">
<AtInput
ref="input"
- :name="itemData.name"
- :title="itemData.label"
- :required="itemData.required"
- :error="itemData.error"
+ :name="itemRes.name"
+ :title="itemRes.label"
+ :required="itemRes.required"
+ :error="itemRes.error"
/>
<AtImagePicker
ref="picker"
- multiple
mode="aspectFit"
- :count="9"
+ :multiple="count > 1"
+ :count="count"
+ :showAddBtn="!selectedFull"
:length="3"
:files="files"
:onChange="(files,operationType,index)=>handleChange(files,operationType,index)"
: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>
<script>
+import Taro from '@tarojs/taro';
import { $ } from '@tarojs/extend';
import { AtInput, AtImagePicker, AtCurtain } from 'taro-ui-vue';
+import { $fetchCommon } from '@fetchers/FCommon';
+import { Tools } from '@components/common/Tools';
+import CImageCompressor from './CImageCompressor.vue';
import './cImagePicker.scss';
export default {
name: 'CImagePicker',
components: {
+ CImageCompressor,
AtInput,
AtImagePicker,
AtCurtain,
},
props: {
- itemData: Object,
+ // 表单数据资源（表单组件内部机制专用）
+ itemRes: Object,
+ // 最大图片张数
+ count: {
+ type: Number,
+ default: 1,
+ },
},
data() {
- return {
- showImg: false,
- curtainImg: '',
- };
+ return {};
},
computed: {
files() {
- const value = this.itemData.formData[this.itemData.name];
+ const value = this.itemRes.formData[this.itemRes.name];
let files = [];
if (Object.prototype.toString.call(value) === '[object String]') {
- files = value.split(',').map((url) => ({ url }));
+ files = value.split(',').map(url => ({ url }));
} else if (Object.prototype.toString.call(value) === '[object Array]') {
- files = value.map((url) => ({ url }));
+ files = value.map(url => ({ url }));
}
- files.push({ type: 'btn' });
return files;
+ },
+ selectedFull() {
+ return this.files.length >= this.count;
},
},
methods: {
- handleChange(files, operationType, index) {
- if (operationType === 'add') {
- }
+ _triggerChange(files) {
const value = [];
- files.forEach((file) => {
- if (file.type === 'btn') {
- return;
- }
+ files.forEach(file => {
value.push(file.url);
});
- this.itemData.onChange(value);
+ this.itemRes.onChange(value);
+ },
+ handleChange(files, operationType, index) {
+ // 添加图片
+ if (operationType === 'add') {
+ // 屏蔽其他格式
+ let nextFiles = files.filter(file => {
+ // 新添加
+ if (file.file && file.file.originalFileObj) {
+ if (
+ /image\/(gif|png|jpg|jpeg)/.test(
+ file.file.originalFileObj.type
+ )
+ ) {
+ return true;
+ } else {
+ Tools.toast('不支持的格式，请选择其他图片！');
+ return false;
+ }
+ }
+ // 非本次添加的图片
+ else {
+ return true;
+ }
+ });
+ // 限制数量
+ if (nextFiles.length > this.count) {
+ Tools.toast('最多只能选 ' + this.count + ' 张图片！');
+ nextFiles = nextFiles.splice(0, this.count);
+ }
+ // 检查是否需要压缩
+ const needs = nextFiles
+ .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 1M 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 = [...nextFiles];
+ 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(nextFiles);
+ }
+ }
+ // 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',
@@ -100,9 +168,76 @@
duration: 2000,
});
},
+ $uploadImage(callback) {
+ const url = $fetchCommon.getUploadImgURL();
+ const uploadTeam = [];
+ const imgs = [];
+ this.files.forEach(file => {
+ if (file.type === 'btn') {
+ return;
+ }
+ // blob 临时文件才上传
+ if (file.url.indexOf('blob') >= 0) {
+ uploadTeam.push(
+ new Promise((resolve, reject) => {
+ Taro.uploadFile({
+ url,
+ filePath: file.url,
+ name: 'file',
+ formData: {},
+ success(res) {
+ const res2 =
+ typeof res.data === 'string'
+ ? JSON.parse(res.data)
+ : res.data;
+ if (res2.state.code === 2000) {
+ resolve(
+ $fetchCommon.transImgPath(
+ 'fix',
+ res2.data.src
+ )
+ );
+ } else {
+ reject({ message: res2.state.msg });
+ }
+ },
+ cancel() {
+ reject({ message: '上传图片已取消！' });
+ },
+ fail() {
+ reject({ message: '上传图片失败！' });
+ },
+ });
+ })
+ );
+ }
+ // 其他类型视为 url，忽略
+ else {
+ uploadTeam.push(Promise.resolve(file.url));
+ }
+ });
+ Promise.all(uploadTeam)
+ .then(res => {
+ this.itemRes.onChange(res);
+ setTimeout(() => {
+ callback('success');
+ }, 0);
+ })
+ .catch(err => {
+ callback('error', err);
+ });
+ },
},
mounted() {
- $(this.$refs.input.$el).find('.at-input__input').prepend(this.$refs.picker.$el);
+ if (process.env.TARO_ENV === 'h5') {
+ $(this.$refs.input.$el)
+ .find('.at-input__input')
+ .prepend(this.$refs.picker.$el);
+ } else if (process.env.TARO_ENV === 'weapp') {
+ $(this.$refs.input.$el)
+ .find('.at-input__container')
+ .append(this.$refs.picker.$el);
+ }
},
};
</script>
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