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this.$emit('open', {
position,
name: this.name,
// @deprecated
// should be removed in next major version
detail: this.name,
});
},
// @exposed-api
close(position) {
this.offset = 0;
if (this.opened) {
this.opened = false;
this.$emit('close', {
position,
name: this.name,
});
}
},
onTouchStart(event) {
if (this.disabled) {
return;
}
this.startOffset = this.offset;
this.touchStart(event);
},
range(num, min, max) {
return Math.min(Math.max(num, min), max);
},
preventDefault(event, isStopPropagation) {
/* istanbul ignore else */
if (typeof event.cancelable !== 'boolean' || event.cancelable) {
event.preventDefault();
}
if (this.isStopPropagations) {
stopPropagation(event);
}
},
stopPropagations(event) {
event.stopPropagation();
},
onTouchMove(event) {
if (this.disabled) {
return;
}
this.touchMove(event);
if (this.direction === 'horizontal') {
this.dragging = true;
this.lockClick = true;
const isPrevent = !this.opened || this.deltaX * this.startOffset < 0;
if (isPrevent) {
this.preventDefault(event, this.stopPropagation);
}
this.offset = this.range(
this.deltaX + this.startOffset,
-this.computedRightWidth,
this.computedLeftWidth
);
//增加弹性
if(this.computedRightWidth && this.offset === -this.computedRightWidth || this.computedLeftWidth && this.offset === this.computedLeftWidth){
//
this.preventDefault(event, this.stopPropagation);
//弹性系数
this.elasticX = (this.deltaX + this.startOffset - this.offset)/4;
}
}else{
//上下滑动后取消close
this.dragging = true;
this.lockClick = true;
}
}, （编辑：惠州站长网）
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