lx-admin-frontend/src/views/system/user/profile/userAvatar.vue

<script setup lang="ts">
import "vue-cropper/dist/index.css";
import { VueCropper } from "vue-cropper";
import { uploadAvatar } from "@/api/system/user";
import useUserStore from "@/store/modules/user";
import { ComponentInternalInstance } from "vue";

interface Options {
  img: string | ArrayBuffer | null // 裁剪图片的地址
  autoCrop: boolean // 是否默认生成截图框
  autoCropWidth: number // 默认生成截图框宽度
  autoCropHeight: number // 默认生成截图框高度
  fixedBox: boolean // 固定截图框大小 不允许改变
  fileName: string
  previews: any // 预览数据
  outputType: string
  visible: boolean
}


const userStore = useUserStore();
const { proxy } = getCurrentInstance() as ComponentInternalInstance;

const open = ref(false);
const visible = ref(false);
const title = ref("修改头像");

const cropper = ref<any>({});
//图片裁剪数据
const options = reactive<Options>({
  img: userStore.avatar,
  autoCrop: true,
  autoCropWidth: 200,
  autoCropHeight: 200,
  fixedBox: true,
  outputType: "png",
  fileName: '',
  previews: {},
  visible: false
});

/** 编辑头像 */
const editCropper = () => {
  open.value = true;
}
/** 打开弹出层结束时的回调 */
const modalOpened = () => {
  visible.value = true;
}
/** 覆盖默认上传行为 */
const requestUpload = (): any => {}
/** 向左旋转 */
const rotateLeft = () => {
  cropper.value.rotateLeft();
}
/** 向右旋转 */
const rotateRight = () => {
  cropper.value.rotateRight();
}
/** 图片缩放 */
const changeScale = (num: number) => {
  num = num || 1;
  cropper.value.changeScale(num);
}
/** 上传预处理 */
const beforeUpload = (file: any) => {
  if (file.type.indexOf("image/") == -1) {
    proxy?.$modal.msgError("文件格式错误，请上传图片类型,如：JPG，PNG后缀的文件。");
  } else {
    const reader = new FileReader();
    reader.readAsDataURL(file);
    reader.onload = () => {
      options.img = reader.result;
      options.fileName = file.name;
    };
  }
}
/** 上传图片 */
const uploadImg = async () => {
  cropper.value.getCropBlob(async (data: any) => {
    let formData = new FormData();
    formData.append("avatarfile", data, options.fileName);
    const res = await uploadAvatar(formData);
    open.value = false;
    options.img = res.data.imgUrl;
    userStore.avatar = options.img as string;
    proxy?.$modal.msgSuccess("修改成功");
    visible.value = false;
  });
}
/** 实时预览 */
const realTime = (data: any) => {
  options.previews = data;
}
/** 关闭窗口 */
const closeDialog = () => {
  options.img = userStore.avatar;
  options.visible = false;
}
</script>

<template>
	<div class="user-info-head" @click="editCropper()">
		<img :src="options.img as string" title="点击上传头像" class="img-circle img-lg" />
		<el-dialog :title="title" v-model="open" width="800px" append-to-body @opened="modalOpened" @close="closeDialog">
			<el-row>
				<el-col :xs="24" :md="12" :style="{ height: '350px' }">
					<vue-cropper
						ref="cropper"
						:img="options.img"
						:info="true"
						:autoCrop="options.autoCrop"
						:autoCropWidth="options.autoCropWidth"
						:autoCropHeight="options.autoCropHeight"
						:fixedBox="options.fixedBox"
						:outputType="options.outputType"
						@realTime="realTime"
						v-if="visible"
					/>
				</el-col>
				<el-col :xs="24" :md="12" :style="{ height: '350px' }">
					<div class="avatar-upload-preview">
						<img :src="options.previews.url" :style="options.previews.img" />
					</div>
				</el-col>
			</el-row>
			<br />
			<el-row>
				<el-col :lg="2" :md="2">
					<el-upload action="#" :http-request="requestUpload" :show-file-list="false" :before-upload="beforeUpload">
						<el-button>
							选择
							<el-icon class="el-icon--right"><Upload /></el-icon>
						</el-button>
					</el-upload>
				</el-col>
				<el-col :lg="{ span: 1, offset: 2 }" :md="2">
					<el-button icon="Plus" @click="changeScale(1)"></el-button>
				</el-col>
				<el-col :lg="{ span: 1, offset: 1 }" :md="2">
					<el-button icon="Minus" @click="changeScale(-1)"></el-button>
				</el-col>
				<el-col :lg="{ span: 1, offset: 1 }" :md="2">
					<el-button icon="RefreshLeft" @click="rotateLeft()"></el-button>
				</el-col>
				<el-col :lg="{ span: 1, offset: 1 }" :md="2">
					<el-button icon="RefreshRight" @click="rotateRight()"></el-button>
				</el-col>
				<el-col :lg="{ span: 2, offset: 6 }" :md="2">
					<el-button type="primary" @click="uploadImg()">提 交</el-button>
				</el-col>
			</el-row>
		</el-dialog>
	</div>
</template>

<style lang="scss" scoped>
.user-info-head {
  position: relative;
  display: inline-block;
  height: 120px;
}

.user-info-head:hover:after {
  content: "+";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  color: #eee;
  background: rgba(0, 0, 0, 0.5);
  font-size: 24px;
  font-style: normal;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  cursor: pointer;
  line-height: 110px;
  border-radius: 50%;
}
</style>