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>