node.vue
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<!--
* User: CHT
* Date: 2020/5/25
* Time: 9:12
-->
<template>
<div
tabindex="-1"
class="super-flow__node"
:class="{ 'can-move': nodeDrop }"
:style="style"
@mousedown.left="nodeMousedown"
@mouseenter="nodeMouseenter"
@mouseleave="nodeMouseleave"
@mouseup="nodeMouseup"
@contextmenu.prevent.stop="nodeContextmenu"
>
<slot :node="node" :meta="node.meta" />
<div
v-for="(dir, key) in direction"
v-show="output && lineDrop"
:key="key"
:class="`node-side node-side-${key}`"
@contextmenu.stop.prevent
@mousedown.left.prevent.stop="(evt) => sideMousedown(evt, dir)"
></div>
</div>
</template>
<script>
import { direction } from './types'
import { getOffset } from './utils'
export default {
props: {
graph: Object,
node: Object,
index: Number,
isMove: Boolean,
isTemEdge: Boolean,
nodeIntercept: Function,
lineDrop: Boolean,
nodeDrop: Boolean,
},
data() {
return {
direction,
output: this.nodeIntercept(),
}
},
computed: {
style() {
const { position, width, height } = this.node
return {
width: width + 'px',
height: height + 'px',
top: position[1] + 'px',
left: position[0] + 'px',
}
},
},
methods: {
nodeMousedown(evt) {
this.graph.toLastNode(this.index)
this.$emit('node-mousedown', this.node, getOffset(evt))
},
nodeMouseenter(evt) {
this.output = this.nodeIntercept()
this.graph.mouseonNode = this.node
if (!this.isTemEdge) return
this.$emit('node-mouseenter', evt, this.node, getOffset(evt, this.$el))
},
nodeMouseleave() {
this.graph.mouseonNode = null
if (!this.isTemEdge) return
this.$emit('node-mouseleave')
},
nodeMouseup() {
if (!this.isTemEdge) return
this.$emit('node-mouseup')
},
nodeContextmenu(evt) {
this.$emit('node-contextmenu', evt, this.node)
},
sideMousedown(evt) {
this.$emit('side-mousedown', evt, this.node, getOffset(evt, this.$el))
},
},
}
</script>
<style lang="scss" scoped>
.super-flow__node {
box-shadow: 1px 2px 8px rgba(0, 0, 0, 0.2);
user-select: none;
position: absolute;
background-color: #ffffff;
// border: 1px solid rgb(180, 180, 180);
z-index: 1;
outline: none;
border-radius: 5px;
overflow: hidden;
&.can-move {
cursor: move;
}
&-header {
background-color: green;
}
&-body {
}
.node-side {
$size: 10px;
position: absolute;
cursor: crosshair;
&-top {
top: -($size / 2);
right: 0;
left: 0;
height: $size;
}
&-right {
top: 0;
right: -($size / 2);
bottom: 0;
width: $size;
}
&-bottom {
right: 0;
bottom: -($size / 2);
left: 0;
height: $size;
}
&-left {
top: 0;
bottom: 0;
left: -($size / 2);
width: $size;
}
}
&:hover {
box-shadow: 1px 2px 8px rgba(0, 0, 0, 0.4);
}
&.isSelect {
z-index: 2;
}
}
</style>