mirror of https://github.com/ElemeFE/element
156 lines
6.5 KiB
Markdown
156 lines
6.5 KiB
Markdown
<script>
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export default {
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data() {
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return {
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activeNames: ['1'],
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activeName: '1'
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};
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},
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methods: {
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handleChange(val) {
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console.log(val);
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}
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}
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}
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</script>
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<style>
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.demo-collapse {
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.el-collapse-item__header {
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.header-icon {
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margin-left: 5px;
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}
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}
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}
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</style>
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## Collapse
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Use Collapse to store contents.
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### Basic usage
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You can expand multiple panels
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:::demo
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```html
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<el-collapse v-model="activeNames" @change="handleChange">
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<el-collapse-item title="Consistency" name="1">
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<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>
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<div>Consistent within interface: all elements should be consistent, such as: design style, icons and texts, position of elements, etc.</div>
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</el-collapse-item>
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<el-collapse-item title="Feedback" name="2">
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<div>Operation feedback: enable the users to clearly perceive their operations by style updates and interactive effects;</div>
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<div>Visual feedback: reflect current state by updating or rearranging elements of the page.</div>
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</el-collapse-item>
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<el-collapse-item title="Efficiency" name="3">
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<div>Simplify the process: keep operating process simple and intuitive;</div>
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<div>Definite and clear: enunciate your intentions clearly so that the users can quickly understand and make decisions;</div>
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<div>Easy to identify: the interface should be straightforward, which helps the users to identify and frees them from memorizing and recalling.</div>
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</el-collapse-item>
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<el-collapse-item title="Controllability" name="4">
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<div>Decision making: giving advices about operations is acceptable, but do not make decisions for the users;</div>
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<div>Controlled consequences: users should be granted the freedom to operate, including canceling, aborting or terminating current operation.</div>
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</el-collapse-item>
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</el-collapse>
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<script>
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export default {
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data() {
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return {
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activeNames: ['1']
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};
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},
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methods: {
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handleChange(val) {
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console.log(val);
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}
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}
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}
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</script>
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```
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:::
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### Accordion
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In accordion mode, only one panel can be expanded at once
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:::demo Activate accordion mode using the `accordion` attribute.
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```html
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<el-collapse v-model="activeName" accordion>
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<el-collapse-item title="Consistency" name="1">
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<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>
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<div>Consistent within interface: all elements should be consistent, such as: design style, icons and texts, position of elements, etc.</div>
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</el-collapse-item>
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<el-collapse-item title="Feedback" name="2">
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<div>Operation feedback: enable the users to clearly perceive their operations by style updates and interactive effects;</div>
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<div>Visual feedback: reflect current state by updating or rearranging elements of the page.</div>
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</el-collapse-item>
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<el-collapse-item title="Efficiency" name="3">
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<div>Simplify the process: keep operating process simple and intuitive;</div>
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<div>Definite and clear: enunciate your intentions clearly so that the users can quickly understand and make decisions;</div>
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<div>Easy to identify: the interface should be straightforward, which helps the users to identify and frees them from memorizing and recalling.</div>
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</el-collapse-item>
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<el-collapse-item title="Controllability" name="4">
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<div>Decision making: giving advices about operations is acceptable, but do not make decisions for the users;</div>
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<div>Controlled consequences: users should be granted the freedom to operate, including canceling, aborting or terminating current operation.</div>
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</el-collapse-item>
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</el-collapse>
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<script>
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export default {
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data() {
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return {
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activeName: '1'
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};
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}
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}
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</script>
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```
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:::
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### Custom title
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Besides using the `title` attribute, you can customize panel title with named slots, which makes adding custom content, e.g. icons, possible.
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:::demo
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```html
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<el-collapse accordion>
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<el-collapse-item name="1">
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<template slot="title">
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Consistency<i class="header-icon el-icon-info"></i>
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</template>
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<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>
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<div>Consistent within interface: all elements should be consistent, such as: design style, icons and texts, position of elements, etc.</div>
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</el-collapse-item>
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<el-collapse-item title="Feedback" name="2">
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<div>Operation feedback: enable the users to clearly perceive their operations by style updates and interactive effects;</div>
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<div>Visual feedback: reflect current state by updating or rearranging elements of the page.</div>
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</el-collapse-item>
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<el-collapse-item title="Efficiency" name="3">
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<div>Simplify the process: keep operating process simple and intuitive;</div>
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<div>Definite and clear: enunciate your intentions clearly so that the users can quickly understand and make decisions;</div>
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<div>Easy to identify: the interface should be straightforward, which helps the users to identify and frees them from memorizing and recalling.</div>
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</el-collapse-item>
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<el-collapse-item title="Controllability" name="4">
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<div>Decision making: giving advices about operations is acceptable, but do not make decisions for the users;</div>
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<div>Controlled consequences: users should be granted the freedom to operate, including canceling, aborting or terminating current operation.</div>
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</el-collapse-item>
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</el-collapse>
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```
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:::
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### Collapse Attributes
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| Attribute | Description | Type | Accepted Values | Default |
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|---------- |-------------- |---------- |-------------------------------- |-------- |
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| value / v-model | currently active panel | string (accordion mode) / array (non-accordion mode) | — | — |
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| accordion | whether to activate accordion mode | boolean | — | false |
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### Collapse Events
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| Event Name | Description | Parameters |
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|---------|---------|---------|
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| change | triggers when active panels change | (activeNames: array (non-accordion mode) / string (accordion mode)) |
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### Collapse Item Attributes
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| Attribute | Description | Type | Accepted Values | Default |
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|---------- |-------------- |---------- |-------------------------------- |-------- |
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| name | unique identification of the panel | string/number | — | — |
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| title | title of the panel | string | — | — | |