Files
element-plus/docs/examples/collapse/prevent-collapsing.vue
Liao-js 4e9b0893a3 feat(components): [collapse] add beforeCollapse prop (#20716)
* Revert "fix(components): [collapse] avoid direct activeNames changes (#20437)"

This reverts commit d8b44b6a2c9d5b9f740ec4a23a3074fbc269ef87.

* feat(components): [collapse] add beforeCollapse prop

* docs: update

* test: update

* test: update

* docs: update
2025-05-15 22:57:09 +08:00

80 lines
2.6 KiB
Vue

<template>
<div v-loading="loading" class="demo-collapse">
<div class="flex items-center mb-4">
<span class="mr-4">before collapse return: </span>
<el-switch
v-model="before"
:inactive-value="false"
:active-value="true"
inactive-text="false"
active-text="true"
/>
</div>
<el-collapse v-model="activeNames" :before-collapse="beforeCollapse">
<el-collapse-item title="Consistency" name="1">
<div>
Consistent with real life: in line with the process and logic of real
life, and comply with languages and habits that the users are used to;
</div>
<div>
Consistent within interface: all elements should be consistent, such
as: design style, icons and texts, position of elements, etc.
</div>
</el-collapse-item>
<el-collapse-item title="Feedback" name="2">
<div>
Operation feedback: enable the users to clearly perceive their
operations by style updates and interactive effects;
</div>
<div>
Visual feedback: reflect current state by updating or rearranging
elements of the page.
</div>
</el-collapse-item>
<el-collapse-item title="Efficiency" name="3">
<div>
Simplify the process: keep operating process simple and intuitive;
</div>
<div>
Definite and clear: enunciate your intentions clearly so that the
users can quickly understand and make decisions;
</div>
<div>
Easy to identify: the interface should be straightforward, which helps
the users to identify and frees them from memorizing and recalling.
</div>
</el-collapse-item>
<el-collapse-item title="Controllability" name="4">
<div>
Decision making: giving advices about operations is acceptable, but do
not make decisions for the users;
</div>
<div>
Controlled consequences: users should be granted the freedom to
operate, including canceling, aborting or terminating current
operation.
</div>
</el-collapse-item>
</el-collapse>
</div>
</template>
<script lang="ts" setup>
import { ref } from 'vue'
const before = ref(true)
const activeNames = ref(['1'])
const loading = ref(false)
const beforeCollapse = (): Promise<boolean> => {
loading.value = true
return new Promise((resolve) => {
setTimeout(() => {
loading.value = false
return resolve(before.value)
}, 1000)
})
}
</script>