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Merge pull request #553 from beansmile/feat-drag-upload
feat: 支持拖拽上传
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| <template> | ||
| <div | ||
| class="admin-dropbox" | ||
| :class="{ active, disabled }" | ||
| @dragenter.stop.prevent="handleDropEnter" | ||
| @dragover.stop.prevent="handleDropEnter" | ||
| @dragleave.stop.prevent="handleDropLeave" | ||
| @drop.stop.prevent="handleDropFile" | ||
| @click.stop="handleClick" | ||
| v-loading="loading" | ||
| > | ||
| <i class="el-icon-upload" /> | ||
| <div class="upload-text">{{ $t('bean.dragAndDropUpload') }}</div> | ||
| <slot /> | ||
|
|
||
| <input | ||
| :accept="accept" | ||
| type="file" | ||
| style="position: fixed; left: -200%; width: 0; height: 0;" | ||
| ref="input" | ||
| :multiple="limit > 1" | ||
| @change="handleFileInputChange" | ||
| @click.stop | ||
| /> | ||
| </div> | ||
| </template> | ||
|
|
||
| <script> | ||
| import { Vue, Component, Prop } from 'vue-property-decorator'; | ||
| @Component | ||
| export default class DropBox extends Vue { | ||
| @Prop(String) accept; | ||
| @Prop(Boolean) disabled; | ||
| @Prop(Boolean) loading; | ||
| @Prop({ type: Number, default: 0 }) size; // 单位M 0表示不限制 | ||
| @Prop({ type: Number, default: 1 }) limit; | ||
| active = false; | ||
| checkFileType(file, accept) { | ||
| if (!accept || accept === '*') { | ||
| return true; | ||
| } | ||
| const valid = accept.replace(/\s/g, '').split(',').filter(accept => { | ||
| if (accept.startsWith('.')) { | ||
| return (file.name || '').toLowerCase().endsWith(accept.toLowerCase()); | ||
| } | ||
| return new RegExp(accept.replace('*', '.*')).test(file.type); | ||
| }).length > 0; | ||
| return valid; | ||
| } | ||
| handleDropEnter() { | ||
| this.active = true; | ||
| } | ||
| handleDropLeave() { | ||
| this.active = false; | ||
| } | ||
| validateFile(file, { validateType = true, validateSize = true } = {}) { | ||
| if (validateType) { | ||
| const fileTypeValid = this.checkFileType(file, this.accept); | ||
| if (!fileTypeValid) { | ||
| return `${file.name} - ${this.$t('bean.fileTypeisInvalid')}`; | ||
| } | ||
| } | ||
| if (validateSize && this.size > 0) { | ||
| if (file.size > this.size * 1024 * 1024) { | ||
| return `${file.name} - ${this.$t('bean.maximumFileSize', { size: `${this.size}M` })}`; | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
| handleFiles(files, { validateType = true, validateSize = true } = {}) { | ||
| if (files.length) { | ||
| if (files.length > this.limit) { | ||
| this.$emit('error', this.$t('bean.maximumUploadFileCount', { count: this.limit })); | ||
| return; | ||
| } | ||
| if (this.limit === 1) { | ||
| const errMsg = this.validateFile(files[0], { validateType, validateSize }); | ||
| if (errMsg) { | ||
| this.$emit('error', errMsg); | ||
| return; | ||
| } | ||
| this.$emit('change', files); | ||
| } else { | ||
| const validFiles = files.filter(item => !this.validateFile(item, { validateType, validateSize })); | ||
| if (validFiles.length !== files.length) { | ||
| this.$emit('error', this.$t('bean.filteredUploadFileTip')); | ||
| } | ||
| if (validFiles.length) { | ||
| this.$emit('change', validFiles); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| handleDropFile(e) { | ||
| this.handleDropLeave(); | ||
| this.handleFiles([...e.dataTransfer.files]); | ||
| } | ||
| handleFileInputChange(e) { | ||
| const files = e.target.files; | ||
| this.handleFiles([...files], { validateType: false }); | ||
| // 相同文件change事件不会触发 | ||
| e.target.value = ''; | ||
| } | ||
| handleClick() { | ||
| this.$refs.input.click(); | ||
| } | ||
| } | ||
| </script> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| .admin-dropbox { | ||
| background-color: #fff; | ||
| border: 2px dashed #d9d9d9; | ||
| border-radius: 6px; | ||
| box-sizing: border-box; | ||
| width: 360px; | ||
| height: 180px; | ||
| text-align: center; | ||
| cursor: pointer; | ||
| overflow: hidden; | ||
|
|
||
| &.disabled { | ||
| pointer-events: none; | ||
| opacity: .3; | ||
| } | ||
|
|
||
| &:not(.disabled) { | ||
| &.active, | ||
| &:hover { | ||
| border-color: $--color-primary; | ||
| } | ||
| } | ||
|
|
||
| .el-icon-upload { | ||
| font-size: 67px; | ||
| color: #c0c4cc; | ||
| margin: 40px 0 16px; | ||
| line-height: 50px; | ||
| } | ||
|
|
||
| .upload-text { | ||
| color: #606266; | ||
| font-size: $--font-size-base; | ||
| text-align: center; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -58,6 +58,11 @@ | |
| .tags-selector { | ||
| margin-top: 20px; | ||
| } | ||
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| .admin-dropbox { | ||
| width: 100%; | ||
| margin-bottom: 20px; | ||
| } | ||
| } | ||
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