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| <template>
<div ref="splitPane" class="split-pane" :class="direction" :style="{ flexDirection: direction }">
<div class="pane pane-one" :style="lengthType + ':' + paneLengthValue">
<slot name="one" />
</div>
<div
style="z-index: 2"
class="pane-trigger"
:style="lengthType + ':' + triggerLengthValue"
@mousedown="handleMouseDown"
/>
<div class="pane pane-two" style="z-index: 2;background-color: white">
<slot name="two" />
</div>
</div>
</template>
<script>
export default {
props: {
direction: {
type: String,
default: 'row'
},
min: {
type: Number,
default: 10
},
max: {
type: Number,
default: 90
},
paneLengthPercent: {
type: Number,
default: 50
},
triggerLength: {
type: Number,
default: 10
}
},
data() {
return {
triggerLeftOffset: 0 // 鼠标距滑动器左(顶)侧偏移量
}
},
computed: {
lengthType() {
return this.direction === 'row' ? 'width' : 'height'
},
paneLengthValue() {
return `calc(${this.paneLengthPercent}% - ${this.triggerLength / 2 + 'px'})`
},
triggerLengthValue() {
return this.triggerLength + 'px'
}
},
methods: {
// 按下滑动器
handleMouseDown(e) {
document.addEventListener('mousemove', this.handleMouseMove)
document.addEventListener('mouseup', this.handleMouseUp)
if (this.direction === 'row') {
this.triggerLeftOffset = e.pageX - e.srcElement.getBoundingClientRect().left
} else {
this.triggerLeftOffset = e.pageY - e.srcElement.getBoundingClientRect().top
}
},
// 按下滑动器后移动鼠标
handleMouseMove(e) {
const clientRect = this.$refs.splitPane.getBoundingClientRect()
let paneLengthPercent = 0
if (this.direction === 'row') {
const offset = e.pageX - clientRect.left - this.triggerLeftOffset + this.triggerLength / 2
paneLengthPercent = (offset / clientRect.width) * 100
} else {
const offset = e.pageY - clientRect.top - this.triggerLeftOffset + this.triggerLength / 2
paneLengthPercent = (offset / clientRect.height) * 100
}
if (paneLengthPercent < this.min) {
paneLengthPercent = this.min
}
if (paneLengthPercent > this.max) {
paneLengthPercent = this.max
}
this.$emit('update:paneLengthPercent', paneLengthPercent)
},
// 松开滑动器
handleMouseUp() {
document.removeEventListener('mousemove', this.handleMouseMove)
}
}
}
</script>
<style scoped lang="scss">
.split-pane {
//background: palegreen;
height: 100%;
display: flex;
&.row {
.pane {
height: 100%;
}
.pane-trigger {
height: 100%;
cursor: col-resize;
}
}
&.column {
.pane {
width: 100%;
}
.pane-trigger {
width: 100%;
cursor: row-resize;
}
}
.pane-one {
//background: palevioletred;
}
.pane-trigger {
user-select: none;
background: rgba(241, 241, 241, 0.95);
}
.pane-two {
flex: 1;
//background: turquoise;
}
}
</style>
|
