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<template>
<div style="display: flex;">
<nav style="margin: 0 auto;">
<ul class="pagination">
<li
class="page-item"
:class="{ disabled: page === 1 }"
>
<a
class="page-link"
href="#"
@click="page -= 1"
>
<b-icon icon="chevron-left" scale="1.5"></b-icon>
</a>
</li>
<div v-if="nbPages > 5" style="display: contents;">
<li
v-for="index in pagination(page, nbPages)"
:key="index"
class="page-item"
:class="{ active: page === index }"
>
<a
class="page-link"
href="#"
@click="changePage(index)"
>
{{ index }}
</a>
</li>
</div>
<div v-else style="display: contents;">
<li
v-for="index in nbPages"
:key="index"
class="page-item"
:class="{ active: page === index }"
>
<a
class="page-link"
href="#"
@click="page = index"
>
{{ index }}
</a>
</li>
</div>
<li
class="page-item"
:class="{ disabled: page === nbPages }"
>
<a
class="page-link"
href="#"
@click="page += 1"
>
<b-icon icon="chevron-right" scale="1.5"></b-icon>
</a>
</li>
</ul>
</nav>
</div>
</template>
<script>
export default {
name: 'Pagination',
props: {
nbPages: {
type: Number,
default: 1
},
onPageChange: {
type: Function,
default: () => {
return () => 1;
}
}
},
data() {
return {
page: 1
}
},
watch: {
page: function(newValue, oldValue) {
if (newValue !== oldValue) {
this.onPageChange(newValue);
this.$emit('change-page', newValue);
}
}
},
methods: {
pagination(c, m) {
const current = c,
last = m,
delta = 2,
left = current - delta,
right = current + delta + 1,
range = [],
rangeWithDots = [];
let l;
for (let i = 1; i <= last; i++) {
if (i === 1 || i === last || i >= left && i < right) {
range.push(i);
}
}
for (const i of range) {
if (l) {
if (i - l === 2) {
rangeWithDots.push(l + 1);
} else if (i - l !== 1) {
rangeWithDots.push('...');
}
}
rangeWithDots.push(i);
l = i;
}
return rangeWithDots;
},
changePage(num) {
if (typeof num === 'number') {
this.page = num;
}
}
}
}
</script>
<style lang="less" scoped>
.pagination {
.page-item {
.page-link {
border: none;
font-weight: 400;
color: #000000;
}
}
.page-item.active {
.page-link {
color: #000000;
background-color: transparent;
font-weight: bolder;
font-size: 1.2em;
text-shadow: 0 0 2px #000000;
padding: 0.325em 0.75em;
pointer-events: none;
}
}
.page-item.disabled {
.page-link {
opacity: 0.5;
}
}
}
</style>