使用vue3实现对话气泡长按选中全部内容(可自由拖动选择)同时弹出自定义菜单弹窗(如复制,删除等)的功能
时间: 2023-12-30 17:03:15 浏览: 56
好的,这是一个比较复杂的功能,需要结合Vue3的指令和事件处理来实现。我将分步骤给出实现的思路和代码示例:
1. 在对话气泡组件中添加长按事件处理函数,同时使用Vue3的v-selectable指令使其支持长按选中全部内容:
```html
<template>
<div
class="bubble"
v-long-press="onLongPress"
v-selectable
:class="{ selected: selected }"
>
{{ text }}
</div>
</template>
<script>
import { ref } from 'vue';
export default {
props: {
text: String,
},
setup(props) {
const selected = ref(false);
const onLongPress = () => {
selected.value = true;
};
return {
selected,
onLongPress,
};
},
};
</script>
```
2. 使用CSS样式控制长按选中内容的外观,并给选中的内容添加一个特殊的类名:
```css
.bubble::selection {
background-color: #b3d4fc;
color: #000;
}
.bubble.selected::selection {
background-color: #b3d4fc;
color: #000;
}
```
3. 添加自定义菜单弹窗组件,并使用Vue3的Teleport组件将其挂载到body元素上:
```html
<template>
<teleport to="body">
<div v-show="visible" class="menu">
<div class="menu-item" @click="onCopy">复制</div>
<div class="menu-item" @click="onDelete">删除</div>
</div>
</teleport>
</template>
<script>
import { ref } from 'vue';
export default {
props: {
x: Number,
y: Number,
},
setup(props) {
const visible = ref(false);
const onCopy = () => {
document.execCommand('copy');
visible.value = false;
};
const onDelete = () => {
// TODO: 删除选中内容
visible.value = false;
};
return {
visible,
onCopy,
onDelete,
};
},
};
</script>
<style scoped>
.menu {
position: absolute;
left: 0;
top: 0;
z-index: 999;
background-color: #fff;
box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.2);
padding: 10px;
border-radius: 4px;
}
.menu-item {
cursor: pointer;
padding: 5px 10px;
margin-bottom: 5px;
font-size: 14px;
}
</style>
```
4. 在长按事件处理函数中记录选中内容的位置和大小,并展示自定义菜单弹窗:
```html
<template>
<div
class="bubble"
v-long-press="onLongPress"
v-selectable
:class="{ selected: selected }"
>
{{ text }}
<menu-popup v-if="selected" :x="x" :y="y" />
</div>
</template>
<script>
import { ref, onMounted, onUnmounted } from 'vue';
import MenuPopup from './MenuPopup.vue';
export default {
props: {
text: String,
},
components: {
MenuPopup,
},
setup(props) {
const selected = ref(false);
const x = ref(0);
const y = ref(0);
const onLongPress = (e) => {
e.preventDefault();
selected.value = true;
const range = window.getSelection().getRangeAt(0);
const rect = range.getBoundingClientRect();
x.value = rect.left + window.scrollX;
y.value = rect.top + window.scrollY;
onMounted(() => {
document.addEventListener('click', onClick);
});
onUnmounted(() => {
document.removeEventListener('click', onClick);
});
};
const onClick = () => {
selected.value = false;
};
return {
selected,
x,
y,
onLongPress,
};
},
};
</script>
```
现在,我们已经完成了使用Vue3实现对话气泡长按选中全部内容并弹出自定义菜单弹窗的功能。需要注意的是,上述代码中的菜单弹窗只是一个简单的示例,实际使用时可能需要根据具体需求进行修改和完善。