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<!--
SPDX-FileCopyrightText: syuilo and other misskey contributors
SPDX-License-Identifier: AGPL-3.0-only
-->
<template>
<div :class="$style.root">
<MkButton primary :disabled="min === current" @click="onToPrevButtonClicked"><</MkButton>
<div :class="$style.buttons">
<div v-if="prevDotVisible" :class="$style.headTailButtons">
<MkButton @click="onToHeadButtonClicked">{{ min }}</MkButton>
<span class="ti ti-dots"/>
</div>
<MkButton
v-for="i in buttonRanges" :key="i"
:disabled="current === i"
@click="onNumberButtonClicked(i)"
>
{{ i }}
</MkButton>
<div v-if="nextDotVisible" :class="$style.headTailButtons">
<span class="ti ti-dots"/>
<MkButton @click="onToTailButtonClicked">{{ max }}</MkButton>
</div>
</div>
<MkButton primary :disabled="max === current" @click="onToNextButtonClicked">></MkButton>
</div>
</template>
<script setup lang="ts">
import { computed, toRefs } from 'vue';
import MkButton from '@/components/MkButton.vue';
const min = 1;
const emit = defineEmits<{
(ev: 'pageChanged', pageNumber: number): void;
}>();
const props = defineProps<{
current: number;
max: number;
buttonCount: number;
}>();
const { current, max } = toRefs(props);
const buttonCount = computed(() => Math.min(max.value, props.buttonCount));
const buttonCountHalf = computed(() => Math.floor(buttonCount.value / 2));
const buttonCountStart = computed(() => Math.min(Math.max(min, current.value - buttonCountHalf.value), max.value - buttonCount.value + 1));
const buttonRanges = computed(() => Array.from({ length: buttonCount.value }, (_, i) => buttonCountStart.value + i));
const prevDotVisible = computed(() => (current.value - 1 > buttonCountHalf.value) && (max.value > buttonCount.value));
const nextDotVisible = computed(() => (current.value < max.value - buttonCountHalf.value) && (max.value > buttonCount.value));
if (_DEV_) {
console.log('[MkPagingButtons]', current.value, max.value, buttonCount.value, buttonCountHalf.value);
console.log('[MkPagingButtons]', current.value < max.value - buttonCountHalf.value);
console.log('[MkPagingButtons]', max.value > buttonCount.value);
}
function onNumberButtonClicked(pageNumber: number) {
emit('pageChanged', pageNumber);
}
function onToHeadButtonClicked() {
emit('pageChanged', min);
}
function onToPrevButtonClicked() {
const newPageNumber = current.value <= min ? min : current.value - 1;
emit('pageChanged', newPageNumber);
}
function onToNextButtonClicked() {
const newPageNumber = current.value >= max.value ? max.value : current.value + 1;
emit('pageChanged', newPageNumber);
}
function onToTailButtonClicked() {
emit('pageChanged', max.value);
}
</script>
<style module lang="scss">
.root {
display: flex;
justify-content: center;
align-items: center;
gap: 24px;
button {
border-radius: 9999px;
min-width: 2.5em;
min-height: 2.5em;
max-width: 2.5em;
max-height: 2.5em;
padding: 4px;
}
}
.buttons {
display: flex;
align-items: center;
justify-content: center;
gap: 8px;
}
.headTailButtons {
display: flex;
align-items: center;
justify-content: center;
gap: 8px;
span {
font-size: 0.75em;
}
}
</style>
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