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<script>
import { getOuterHeight } from '../../shared/dom';
export default {
name: 'CollapsibleContainer',
model: {
prop: 'isCollapsed',
event: 'change',
},
props: {
isCollapsed: {
type: Boolean,
required: true,
},
collapsingClass: {
type: String,
required: false,
default: 'sm-collapsing',
},
collapsedClass: {
type: String,
required: false,
default: 'sm-collapsed',
},
},
data() {
return {
isCollapsing: false,
collapsingHeight: 0,
};
},
computed: {
styles() {
if (this.isCollapsing) {
return {
height: `${this.collapsingHeight}px`,
};
}
return {};
},
classes() {
if (this.isCollapsing) {
return this.collapsingClass;
}
if (this.isCollapsed) {
return this.collapsedClass;
}
return '';
},
},
methods: {
collapse(shouldCollapse) {
if (this.isCollapsing) {
return;
}
// Right away let's flag that we're collapsing so we don't accept anymore updates
this.isCollapsing = true;
// Let's let our parent go ahead and treat us as collapsed.
this.$emit('change', shouldCollapse);
// Get start/stop height based on if we're collapsing or expanding
const containerHeight = getOuterHeight(this.$el);
const startHeight = shouldCollapse ? containerHeight : 0;
const stopHeight = shouldCollapse ? 0 : containerHeight;
// Kick off transition
this.collapsingHeight = startHeight;
setTimeout(() => {
this.collapsingHeight = stopHeight;
}, 50);
setTimeout(() => {
this.isCollapsing = false;
}, 400);
},
},
};
</script>
<template>
<div :class="classes" :style="styles">
<slot></slot>
</div>
</template>
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