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优化目录结构
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WilliamColton
322
frontend/src/components/ReactionsGroup.vue
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322
frontend/src/components/ReactionsGroup.vue
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<template>
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<div class="reactions-container">
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<div class="reactions-viewer">
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<div class="reactions-viewer-item-container" @click="openPanel" @mouseenter="cancelHide"
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@mouseleave="scheduleHide">
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<template v-if="displayedReactions.length">
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<div v-for="r in displayedReactions" :key="r.type" class="reactions-viewer-item">{{ iconMap[r.type] }}</div>
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<div class="reactions-count">{{ totalCount }}</div>
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</template>
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<div v-else class="reactions-viewer-item placeholder">
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<i class="far fa-smile"></i>
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<span class="reactions-viewer-item-placeholder-text">点击以表态</span>
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</div>
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</div>
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</div>
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<div class="make-reaction-container">
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<div class="make-reaction-item like-reaction" @click="toggleReaction('LIKE')">
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<i v-if="!userReacted('LIKE')" class="far fa-heart"></i>
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<i v-else class="fas fa-heart"></i>
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<span class="reactions-count" v-if="likeCount">{{ likeCount }}</span>
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</div>
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<slot></slot>
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</div>
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<div v-if="panelVisible" class="reactions-panel" @mouseenter="cancelHide" @mouseleave="scheduleHide">
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<div v-for="t in panelTypes" :key="t" class="reaction-option" @click="toggleReaction(t)"
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:class="{ selected: userReacted(t) }">
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{{ iconMap[t] }}<span v-if="counts[t]">{{ counts[t] }}</span>
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</div>
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</div>
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</div>
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</template>
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<script>
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import { ref, computed, watch, onMounted } from 'vue'
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import { API_BASE_URL, toast } from '../main'
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import { getToken, authState } from '../utils/auth'
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let cachedTypes = null
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const fetchTypes = async () => {
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if (cachedTypes) return cachedTypes
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try {
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const token = getToken()
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const res = await fetch(`${API_BASE_URL}/api/reaction-types`, {
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headers: { Authorization: token ? `Bearer ${token}` : '' }
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})
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if (res.ok) {
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cachedTypes = await res.json()
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} else {
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cachedTypes = []
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}
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} catch {
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cachedTypes = []
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}
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return cachedTypes
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}
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const iconMap = {
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LIKE: '❤️',
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DISLIKE: '👎',
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RECOMMEND: '👏',
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ANGRY: '😡',
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FLUSHED: '😳',
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STAR_STRUCK: '🤩',
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ROFL: '🤣',
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HOLDING_BACK_TEARS: '🥹',
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MIND_BLOWN: '🤯',
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POOP: '💩',
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CLOWN: '🤡',
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SKULL: '☠️'
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}
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export default {
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name: 'ReactionsGroup',
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props: {
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modelValue: { type: Array, default: () => [] },
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contentType: { type: String, required: true },
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contentId: { type: [Number, String], required: true }
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},
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emits: ['update:modelValue'],
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setup(props, { emit }) {
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const reactions = ref(props.modelValue)
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watch(() => props.modelValue, v => reactions.value = v)
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const reactionTypes = ref([])
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onMounted(async () => {
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reactionTypes.value = await fetchTypes()
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})
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const counts = computed(() => {
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const c = {}
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for (const r of reactions.value) {
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c[r.type] = (c[r.type] || 0) + 1
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}
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return c
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})
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const totalCount = computed(() => Object.values(counts.value).reduce((a, b) => a + b, 0))
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const likeCount = computed(() => counts.value['LIKE'] || 0)
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const userReacted = type => reactions.value.some(r => r.type === type && r.user === authState.username)
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const displayedReactions = computed(() => {
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return Object.entries(counts.value)
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.sort((a, b) => b[1] - a[1])
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.slice(0, 3)
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.map(([type]) => ({ type }))
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})
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const panelTypes = computed(() => reactionTypes.value.filter(t => t !== 'LIKE'))
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const panelVisible = ref(false)
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let hideTimer = null
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const openPanel = () => {
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clearTimeout(hideTimer)
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panelVisible.value = true
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}
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const scheduleHide = () => {
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clearTimeout(hideTimer)
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hideTimer = setTimeout(() => { panelVisible.value = false }, 500)
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}
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const cancelHide = () => {
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clearTimeout(hideTimer)
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}
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const toggleReaction = async (type) => {
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const token = getToken()
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if (!token) {
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toast.error('请先登录')
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return
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}
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const url = props.contentType === 'post'
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? `${API_BASE_URL}/api/posts/${props.contentId}/reactions`
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: `${API_BASE_URL}/api/comments/${props.contentId}/reactions`
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// optimistic update
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const existingIdx = reactions.value.findIndex(r => r.type === type && r.user === authState.username)
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let tempReaction = null
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let removedReaction = null
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if (existingIdx > -1) {
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removedReaction = reactions.value.splice(existingIdx, 1)[0]
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} else {
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tempReaction = { type, user: authState.username }
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reactions.value.push(tempReaction)
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}
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emit('update:modelValue', reactions.value)
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try {
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const res = await fetch(url, {
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method: 'POST',
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headers: { 'Content-Type': 'application/json', Authorization: `Bearer ${token}` },
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body: JSON.stringify({ type })
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})
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if (res.ok) {
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if (res.status === 204) {
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// removal already reflected
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} else {
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const data = await res.json()
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const idx = tempReaction ? reactions.value.indexOf(tempReaction) : -1
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if (idx > -1) {
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reactions.value.splice(idx, 1, data)
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} else if (removedReaction) {
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// server added back reaction even though we removed? restore data
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reactions.value.push(data)
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}
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if (data.reward && data.reward > 0) {
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toast.success(`获得 ${data.reward} 经验值`)
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}
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}
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emit('update:modelValue', reactions.value)
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} else {
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// revert optimistic update on failure
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if (tempReaction) {
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const idx = reactions.value.indexOf(tempReaction)
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if (idx > -1) reactions.value.splice(idx, 1)
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} else if (removedReaction) {
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reactions.value.push(removedReaction)
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}
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emit('update:modelValue', reactions.value)
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toast.error('操作失败')
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}
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} catch (e) {
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if (tempReaction) {
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const idx = reactions.value.indexOf(tempReaction)
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if (idx > -1) reactions.value.splice(idx, 1)
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} else if (removedReaction) {
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reactions.value.push(removedReaction)
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}
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emit('update:modelValue', reactions.value)
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toast.error('操作失败')
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}
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}
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return {
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iconMap,
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counts,
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totalCount,
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likeCount,
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displayedReactions,
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panelTypes,
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panelVisible,
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openPanel,
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scheduleHide,
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cancelHide,
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toggleReaction,
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userReacted
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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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.reactions-container {
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position: relative;
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display: flex;
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flex-direction: row;
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gap: 10px;
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align-items: center;
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width: 100%;
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justify-content: space-between;
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}
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.reactions-viewer {
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display: flex;
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flex-direction: row;
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gap: 20px;
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align-items: center;
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}
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.reactions-viewer-item-container {
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display: flex;
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flex-direction: row;
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gap: 2px;
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align-items: center;
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cursor: pointer;
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color: #a2a2a2;
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}
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.reactions-viewer-item {
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font-size: 16px;
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}
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.reactions-viewer-item.placeholder {
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opacity: 0.5;
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display: flex;
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flex-direction: row;
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align-items: center;
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}
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.reactions-viewer-item-placeholder-text {
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font-size: 14px;
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padding-left: 5px;
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}
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.make-reaction-container {
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display: flex;
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flex-direction: row;
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gap: 10px;
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}
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.make-reaction-item {
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cursor: pointer;
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padding: 10px;
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opacity: 0.5;
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border-radius: 8px;
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font-size: 20px;
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}
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.like-reaction {
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color: #ff0000;
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display: flex;
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flex-direction: row;
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align-items: center;
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gap: 5px;
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}
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.make-reaction-item:hover {
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background-color: #ffe2e2;
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}
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.reactions-count {
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font-size: 16px;
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font-weight: bold;
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}
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.reactions-panel {
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position: absolute;
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bottom: 40px;
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left: -20px;
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background-color: var(--background-color);
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border: 1px solid var(--normal-border-color);
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border-radius: 5px;
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padding: 5px;
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max-width: 240px;
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display: flex;
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flex-direction: row;
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flex-wrap: wrap;
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z-index: 10;
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gap: 2px;
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box-shadow: 0 0 10px 0 rgba(0, 0, 0, 0.1);
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}
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.reaction-option {
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cursor: pointer;
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padding: 2px 4px;
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border-radius: 4px;
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display: flex;
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flex-direction: row;
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align-items: center;
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gap: 2px;
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}
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.reaction-option.selected {
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background-color: var(--menu-selected-background-color);
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}
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@media (max-width: 768px) {
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.make-reaction-item {
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font-size: 16px;
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padding: 3px 5px;
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}
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}
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</style>
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