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<template>
<div>
<img v-bind:src="options.img" @click="editCropper()" title="点击上传头像" class="img-circle img-lg" />
<el-dialog :title="title" :visible.sync="open" width="800px" append-to-body>
<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"
@realTime="realTime"
/>
</el-col>
<el-col :xs="24" :md="12" :style="{height: '350px'}">
<div class="avatar-upload-preview">
<img :src="previews.url" :style="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 size="small">
上传
<i class="el-icon-upload el-icon--right"></i>
</el-button>
</el-upload>
</el-col>
<el-col :lg="{span: 1, offset: 2}" :md="2">
<el-button icon="el-icon-plus" size="small" @click="changeScale(1)"></el-button>
</el-col>
<el-col :lg="{span: 1, offset: 1}" :md="2">
<el-button icon="el-icon-minus" size="small" @click="changeScale(-1)"></el-button>
</el-col>
<el-col :lg="{span: 1, offset: 1}" :md="2">
<el-button icon="el-icon-refresh-left" size="small" @click="rotateLeft()"></el-button>
</el-col>
<el-col :lg="{span: 1, offset: 1}" :md="2">
<el-button icon="el-icon-refresh-right" size="small" @click="rotateRight()"></el-button>
</el-col>
<el-col :lg="{span: 2, offset: 6}" :md="2">
<el-button type="primary" size="small" @click="uploadImg()">提 交</el-button>
</el-col>
</el-row>
</el-dialog>
</div>
</template>
<script>
import store from "@/store";
import { VueCropper } from "vue-cropper";
import { uploadAvatar} from "@/api/system/user";
export default {
components: { VueCropper },
props: {
user: {
type: Object
}
},
data() {
return {
// 是否显示弹出层
open: false,
// 弹出层标题
title: "修改头像",
options: {
img: store.getters.avatar, //裁剪图片的地址
img: "",
autoCrop: true, // 是否默认生成截图框
autoCropWidth: 200, // 默认生成截图框宽度
autoCropHeight: 200, // 默认生成截图框高度
fixedBox: true // 固定截图框大小 不允许改变
},
previews: {}
};
},
methods: {
// 编辑头像
editCropper() {
this.open = true;
},
// 覆盖默认的上传行为
requestUpload() {
},
// 向左旋转
rotateLeft() {
this.$refs.cropper.rotateLeft();
},
// 向右旋转
rotateRight() {
this.$refs.cropper.rotateRight();
},
// 图片缩放
changeScale(num) {
num = num || 1;
this.$refs.cropper.changeScale(num);
},
// 上传预处理
beforeUpload(file) {
if (file.type.indexOf("image/") == -1) {
this.msgError("文件格式错误，请上传图片类型,如：JPG，PNG后缀的文件。");
} else {
const reader = new FileReader();
reader.readAsDataURL(file);
reader.onload = () => {
this.options.img = reader.result;
};
}
},
// 上传图片
uploadImg() {
this.$refs.cropper.getCropBlob(data => {
var type = data.type
var types = {
"image/jpeg":"jpeg",
"image/png":"png"
}
var file_name = "temp.jpg"
if (types[type]){
file_name = "temp." + types[type]
}
let formData = new FormData();
formData.append("avatarfile", data,file_name);
uploadAvatar(formData).then(response => {
if (response.code === 0) {
this.open = false;
this.options.img = process.env.VUE_APP_BASE_API +"/"+ response.data.fileInfo.fileUrl;
this.msgSuccess("修改成功");
} else {
this.msgError(response.msg);
}
this.$refs.cropper.clearCrop();
});
});
},
// 实时预览
realTime(data) {
this.previews = data;
},
// 设置头像base64
setAvatarBase64(src, callback) {
let _this = this;
let image = new Image();
// 处理缓存
image.src = src + '?v=' + Math.random();
// 支持跨域图片
image.crossOrigin = "*";
image.onload = function () {
let base64 = _this.transBase64FromImage(image);
callback && callback(base64);
}
},
// 将网络图片转换成base64格式
transBase64FromImage(image) {
let canvas = document.createElement("canvas");
canvas.width = image.width;
canvas.height = image.height;
let ctx = canvas.getContext("2d");
ctx.drawImage(image, 0, 0, image.width, image.height);
// 可选其他值 image/jpeg
return canvas.toDataURL("image/png");
}
},
watch:{
user:function(val){
if (val.avatar) {
this.setAvatarBase64(process.env.VUE_APP_BASE_API + "/"+ val.avatar, (base64) => {
this.options.img = base64;
});
}
}
}
}
</script>