DraggableItem.vue
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<script>
import draggable from 'vuedraggable'
import render from '@/utils/generator/render'
const components = {
itemBtns(h, element, index, parent) {
const { copyItem, deleteItem } = this.$listeners
return [
<span class="drawing-item-copy" title="复制" onClick={event => {
copyItem(element, parent); event.stopPropagation()
}}>
<i class="el-icon-copy-document" />
</span>,
<span class="drawing-item-delete" title="删除" onClick={event => {
deleteItem(index, parent); event.stopPropagation()
}}>
<i class="el-icon-delete" />
</span>
]
}
}
const layouts = {
colFormItem(h, element, index, parent) {
const { activeItem } = this.$listeners
let className = this.activeId === element.formId ? 'drawing-item active-from-item' : 'drawing-item'
if (this.formConf.unFocusedComponentBorder) className += ' unfocus-bordered'
return (
<el-col span={element.span} class={className}
nativeOnClick={event => { activeItem(element); event.stopPropagation() }}>
<el-form-item label-width={element.labelWidth ? `${element.labelWidth}px` : null}
label={element.label} required={element.required}>
<render key={element.renderKey} conf={element} onInput={ event => {
this.$set(element, 'defaultValue', event)
}} />
</el-form-item>
{components.itemBtns.apply(this, arguments)}
</el-col>
)
},
rowFormItem(h, element, index, parent) {
const { activeItem } = this.$listeners
const className = this.activeId === element.formId ? 'drawing-row-item active-from-item' : 'drawing-row-item'
let child = renderChildren.apply(this, arguments)
if (element.type === 'flex') {
child = <el-row type={element.type} justify={element.justify} align={element.align}>
{child}
</el-row>
}
return (
<el-col span={element.span}>
<el-row gutter={element.gutter} class={className}
nativeOnClick={event => { activeItem(element); event.stopPropagation() }}>
<span class="component-name">{element.componentName}</span>
<draggable list={element.children} animation={340} group="componentsGroup" class="drag-wrapper">
{child}
</draggable>
{components.itemBtns.apply(this, arguments)}
</el-row>
</el-col>
)
}
}
function renderChildren(h, element, index, parent) {
if (!Array.isArray(element.children)) return null
return element.children.map((el, i) => {
const layout = layouts[el.layout]
if (layout) {
return layout.call(this, h, el, i, element.children)
}
return layoutIsNotFound()
})
}
function layoutIsNotFound() {
throw new Error(`没有与${this.element.layout}匹配的layout`)
}
export default {
components: {
render,
draggable
},
props: [
'element',
'index',
'drawingList',
'activeId',
'formConf'
],
render(h) {
const layout = layouts[this.element.layout]
if (layout) {
return layout.call(this, h, this.element, this.index, this.drawingList)
}
return layoutIsNotFound()
}
}
</script>