效果图：
拖拽.gif
参考效果地址：http://www.jq22.com/yanshi4688
image.png
此篇文章是我根据效果，自己仿写的效果，并没有直接使用以上地址的代码~~(主要是下了也看不懂😂)
这里大致告诉大家怎么实现这种效果的，其他相关内容小伙伴们可以根据需要，自行扩展👍
标题已经说的很明白了，用的 vue+svg+animejs,svg图片需要自己绘制，不太会animejs的可以自行百度，去看人家的官方文档。
需要绘制的图片为4张：
//1.初始状态
d="m57.63158,0.7648l-57.10526,-0.23848l0,398.94736l56.8421,0c0.08772,-132.90296 0.17544,-265.80592 0.26316,-398.70888z"
//2.拉伸时状态
d="m57.63158,0.7648l-57.10526,-0.23848l0,398.94736l56.8421,0c132.71929,-76.58717 132.2807,-323.17434 0.26316,-398.70888z"
//3.最终状态
d= "m158.1579,0.7648l-157.63158,-0.23848l0,398.94736l156.90516,0c0.24214,-132.90296 0.48428,-265.80592 0.72642,-398.70888z"
//4.恢复到初始时的状态
d="m158.1579,0.7648l-157.63158,-0.23848l0,398.94736l156.90516,0c-90.81049,-132.37664 -97.93677,-266.85855 0.72642,-398.70888z"
image.png
整体连贯起来就是这样的：
拖拽1.gif
🎈简单的animejs,就能实现这种动画变换过程
anime({
targets: "#svg_1",
d: [
{
value:
"m57.63158,0.7648l-57.10526,-0.23848l0,398.94736l56.8421,0c0.08772,-132.90296 0.17544,-265.80592 0.26316,-398.70888z"
},
{
value:
"m57.63158,0.7648l-57.10526,-0.23848l0,398.94736l56.8421,0c132.71929,-76.58717 132.2807,-323.17434 0.26316,-398.70888z"
},
{
value:
"m158.1579,0.7648l-157.63158,-0.23848l0,398.94736l156.90516,0c0.24214,-132.90296 0.48428,-265.80592 0.72642,-398.70888z"
},
{
value:
"m158.1579,0.7648l-157.63158,-0.23848l0,398.94736l156.90516,0c-90.81049,-132.37664 -97.93677,-266.85855 0.72642,-398.70888z"
},
{
value:
"m57.63158,0.7648l-57.10526,-0.23848l0,398.94736l56.8421,0c0.08772,-132.90296 0.17544,-265.80592 0.26316,-398.70888z"
}
],
duration: 5000,
loop: 1
});
🎈这个原理大致了解之后，接下来就是在哪个过程中调用哪个阶段就可以了，详细的代码上都有注释的，想要记得更加深刻的最好自己动手操作~~~🌭
代码如下：
<template>
<div class="overall" @click="close_path" @mousedown="m_d_path" @mouseup="m_u_path">
<div class="box">
<svg viewBox="0 0 300 400">
<path
@mousemove="m_m_path"
id="svg_1"
d="m57.63158,0.7648l-57.10526,-0.23848l0,398.94736l56.8421,0c0.08772,-132.90296 0.17544,-265.80592 0.26316,-398.70888z"
/>
</svg>
<div class="chat_box" @click.prevent="path_open == true">
<div class="chat_msg" v-for="(m,index) in 20" :key="index">
<span>Massage_{{index+1}}</span>
<span class="dot"></span>
</div>
</div>
</div>
</div>
</template>
<script>
import anime from "animejs/lib/anime.es.js";
export default {
watch: {
path_open(newVal, oldVal) {
if (!newVal) {
anime({
targets: "#svg_1",
d: [
{
value:
"m158.1579,0.7648l-157.63158,-0.23848l0,398.94736l156.90516,0c-90.81049,-132.37664 -97.93677,-266.85855 0.72642,-398.70888z",
duration: 100,
easing: "easeInQuad"
},
{
value:
"m57.63158,0.7648l-57.10526,-0.23848l0,398.94736l56.8421,0c0.08772,-132.90296 0.17544,-265.80592 0.26316,-398.70888z",
duration: 300
}
],
begin: function() {
anime({
targets: ".chat_box",
translateX: [0, -160],
opacity: 0,
duration: 0
});
}
});
}
}
},
data() {
return {
box_el: null, //容器标签
path_el: null, //获取 path 标签
down_m_x: 0, //鼠标点击时的坐标
click_on: false, //是否处于拖拉状态
path_open: false, //左侧拉伸框是否打开
stretch: 0, //拉伸长度
pathList: [
//默认状态
{
value:
"m57.63158,0.7648l-57.10526,-0.23848l0,398.94736l56.8421,0c0.08772,-132.90296 0.17544,-265.80592 0.26316,-398.70888z"
},
//拉伸时状态
{
value:
"m57.63158,0.7648l-57.10526,-0.23848l0,398.94736l56.8421,0c132.71929,-76.58717 132.2807,-323.17434 0.26316,-398.70888z"
},
//最终状态
{
value:
"m158.1579,0.7648l-157.63158,-0.23848l0,398.94736l156.90516,0c0.24214,-132.90296 0.48428,-265.80592 0.72642,-398.70888z"
},
//回收时状态
{
value:
"m158.1579,0.7648l-157.63158,-0.23848l0,398.94736l156.90516,0c-90.81049,-132.37664 -97.93677,-266.85855 0.72642,-398.70888z"
}
]
};
},
mounted() {
let _this = this;
_this.path_el = document.querySelector("#svg_1");
_this.box_el = document.querySelector(".box");
// anime({
// targets: "#svg_1",
// d: [
// {
// value:
// "m57.63158,0.7648l-57.10526,-0.23848l0,398.94736l56.8421,0c0.08772,-132.90296 0.17544,-265.80592 0.26316,-398.70888z"
// },
// {
// value:
// "m57.63158,0.7648l-57.10526,-0.23848l0,398.94736l56.8421,0c132.71929,-76.58717 132.2807,-323.17434 0.26316,-398.70888z"
// },
// {
// value:
// "m158.1579,0.7648l-157.63158,-0.23848l0,398.94736l156.90516,0c0.24214,-132.90296 0.48428,-265.80592 0.72642,-398.70888z"
// },
// {
// value:
// "m158.1579,0.7648l-157.63158,-0.23848l0,398.94736l156.90516,0c-90.81049,-132.37664 -97.93677,-266.85855 0.72642,-398.70888z"
// },
// {
// value:
// "m57.63158,0.7648l-57.10526,-0.23848l0,398.94736l56.8421,0c0.08772,-132.90296 0.17544,-265.80592 0.26316,-398.70888z"
// }
// ],
// duration: 5000,
// loop: true
// });
},
methods: {
//鼠标点击
m_d_path(e) {
console.log("鼠标点击");
this.click_on = true;
this.down_m_x = e.clientX;
},
//鼠标点击后 + 移动（拖拽时）
m_m_path(e) {
//拉伸的距离长度
// e.clientX 鼠标当前最新的坐标位置
// this.down_m_x 鼠标最初的点击坐标位置
//当左侧拉伸框是打开状态下，不再执行以下操作
let left = this.box_el.offsetLeft;
// this.down_m_x > left 防止用户直接从左侧拉伸进入容器时，左侧框直接被拉开
if (!this.path_open && this.down_m_x > left) {
this.stretch = e.clientX - this.down_m_x; //拉伸长度
if (this.stretch > 0 && this.click_on) {
console.log(this.stretch);
this.path_el.setAttribute(
"d",
`m57.63158,0.7648l-57.10526,-0.23848l0,398.94736l56.8421,0c${this.stretch},-132.90296 ${this.stretch},-265.80592 0.26316,-398.70888z`
);
}
} else {
// alert("我已经被拉开了");
}
},
//鼠标松开
m_u_path(e) {
console.log("鼠标松开");
let left = this.box_el.offsetLeft;
//当左侧拉伸框是打开状态下，不再执行以下操作
// this.down_m_x > left 防止用户直接从左侧拉伸进入容器时，左侧框直接被拉开
//this.stretch > 0 防止关闭左侧拉伸框时，用户重复点击问题
if (!this.path_open && this.down_m_x > left && this.stretch > 0) {
//如果拖拉距离超过50，则展开
if (this.stretch > 50) {
let _this = this;
anime({
targets: "#svg_1",
duration: 300,
d:
"m158.1579,0.7648l-157.63158,-0.23848l0,398.94736l156.90516,0c0.24214,-132.90296 0.48428,-265.80592 0.72642,-398.70888z",
complete: function(anim) {
//动画完成后，会触发一次complete()回调。
_this.path_open = true;
anime({
targets: ".chat_box",
translateX: [-160, 0],
opacity: 1,
duration: 0
});
}
});
} else {
//不超过50 则恢复
anime({
targets: "#svg_1",
duration: 200,
d:
"m57.63158,0.7648l-57.10526,-0.23848l0,398.94736l56.8421,0c0.08772,-132.90296 0.17544,-265.80592 0.26316,-398.70888z"
});
}
} else {
// alert("我已经被拉开了");
}
this.click_on = false;
},
//关闭左侧拉伸框
close_path(e) {
console.log(e.target);
// 主要运用了事件的冒泡
//判断点击除 左侧拉伸框 外其他部分，全部为关闭 左侧拉伸框
if (
e.target == this.box_el ||
e.target == document.querySelector(".overall")
) {
//关闭后重置 左侧拉伸框状态 拉伸长度
this.path_open = false;
this.stretch = 0;
} else {
return;
}
}
}
};
</script>
<style lang="scss" scoped>
.overall {
background: #65698f;
}
svg {
width: 100%;
height: 100%;
transform: scale(1.05);
}
path {
cursor: grab;
fill: rgba(255, 255, 255, 0.966);
stroke-width: 0;
stroke-linecap: round;
stroke-linejoin: round;
}
.box {
width: 300px;
height: 400px;
background: #6d7ada;
overflow: hidden;
position: relative;
.chat_box {
width: 160px;
height: 100%;
// background: red;
position: absolute;
left: 0;
top: 0;
z-index: 9;
overflow-y: scroll;
opacity: 0;
transform: translateX(-160px);
&::-webkit-scrollbar {
opacity: 0;
background: rgba(204, 204, 204, 0.685) !important;
width: 2px; //y轴滚轮的宽
// height: 2px; //x轴滚轮的高
}
&::-webkit-scrollbar-thumb {
/*滚动条里面小方块*/
border-radius: 10px;
-webkit-box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.2);
background: white;
}
&::-webkit-scrollbar-track {
/*滚动条里面轨道*/
// -webkit-box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.2);
// border-radius: 10px;
background: transparent;
// -webkit-scrollBar-track-color:black;
}
.chat_msg {
margin: 0 5px;
height: 60px;
border-bottom: 1px solid #f0f0f0;
box-sizing: border-box;
display: flex;
justify-content: center;
align-items: center;
font-size: 12px;
color: #5a5a5a;
font-weight: bold;
position: relative;
.dot {
width: 6px;
height: 6px;
border-radius: 50%;
background: rgb(25, 238, 185);
position: absolute;
right: 5%;
}
}
}
}
</style>
