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<template>
<div class='app-picture-preview'>
<ul class="">
<li v-for="(file,index) in files" :key="index" class="preview-file-list-item">
<div class='preview-file-list-img'>
<el-image :src="file.url" class='' style=''>
<div slot='error' class='image-slot'>
<img src="/assets/img/picture.png" style='width:100%;height:100%;'>
</div>
</el-image>
<div class='preview-file-list-actions'>
<span class='action-preview'>
<i class='el-icon-zoom-in' @click="onPreview(file)"></i>
</span>
<span class='action-download'>
<i class='el-icon-download' @click="onDownload(file)"></i>
</span>
</div>
</div>
</li>
</ul>
<!-- 预览 -->
<modal v-model="dialogVisible" footer-hide width="auto" class-name='app-image-preview-model'>
<el-image :src="dialogImageUrl">
<div slot='error' class='image-slot'>
<img src="/assets/img/picture.png">
</div>
</el-image>
</modal>
</div>
</template>
<script lang = 'ts'>
import { Vue, Component, Prop, Watch, Provide } from 'vue-property-decorator';
import { Environment } from '@/environments/environment';
import { Subject, Unsubscribable } from 'rxjs';
@Component({})
export default class AppImagePreview extends Vue {
/**
* 表单状态
*
* @type {Subject<any>}
* @memberof AppImagePreview
*/
@Prop() public formState?: Subject<any>
/**
* 表单状态事件
*
* @private
* @type {(Unsubscribable | undefined)}
* @memberof AppImagePreview
*/
private formStateEvent: Unsubscribable | undefined;
/**
* 初始化值
*
* @type {*}
* @memberof AppImagePreview
*/
@Prop() public value?: any;
/**
* 数据值变化
*
* @param {*} newval
* @param {*} val
* @returns
* @memberof AppImagePreview
*/
@Watch('value')
onValueChange(newval: any, val: any) {
this.setFiles(newval)
}
/**
* 所属表单项名称
*
* @type {string}
* @memberof AppImagePreview
*/
@Prop() public name!: string;
/**
* 上传文件路径
*
* @memberof AppImagePreview
*/
public uploadUrl = Environment.BaseUrl + Environment.UploadFile;
/**
* 下载文件路径
*
* @memberof AppImagePreview
*/
public downloadUrl = Environment.BaseUrl + Environment.ExportFile;
/**
* 文件列表
*
* @memberof AppImagePreview
*/
@Provide() public files = [];
/**
* 设置files
*
* @private
* @memberof AppImagePreview
*/
private setFiles(value:any): void {
let _files = JSON.parse(value);
if (value && Object.prototype.toString.call(_files)=='[object Array]') {
this.files = _files;
this.files.forEach((file: any) => {
let url = `${this.downloadUrl}/${file.id}`;
file.url = url;
});
} else {
this.files = [];
}
}
/**
* vue 生命周期
*
* @memberof AppImagePreview
*/
public created() {
if (this.formState) {
this.formStateEvent = this.formState.subscribe(($event: any) => {
// 表单加载完成
if (Object.is($event.type, 'load')) {
this.setFiles(this.value);
}
});
}
}
/**
* vue 生命周期
*
* @memberof AppImagePreview
*/
public mounted() {
this.setFiles(this.value);
}
/**
* 组件销毁
*
* @memberof AppImagePreview
*/
public destroyed(): void {
if (this.formStateEvent) {
this.formStateEvent.unsubscribe();
}
}
/**
* 下载文件
*
* @param {*} file
* @memberof AppImagePreview
*/
public onDownload(file: any) {
window.open(file.url);
}
/**
* 预览图片地址
*
* @type {string}
* @memberof AppImagePreview
*/
public dialogImageUrl: string = '';
/**
* 是否显示预览界面
*
* @type {boolean}
* @memberof AppImagePreview
*/
public dialogVisible: boolean = false;
/**
* 预览
*
* @param {*} file
* @memberof AppImagePreview
*/
public onPreview(file: any) {
this.dialogImageUrl = file.url;
this.dialogVisible = true;
}
}
</script>
<style lang="scss">
@import './app-image-preview.scss';
</style>