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<script>
import { GlIcon, GlDropdown, GlSearchBoxByType } from '@gitlab/ui';
import { findLastIndex } from 'lodash';
import VirtualList from 'vue-virtual-scroll-list';
import { CATEGORY_NAMES } from '~/emoji';
import { CATEGORY_ICON_MAP, FREQUENTLY_USED_KEY } from '../constants';
import Category from './category.vue';
import EmojiList from './emoji_list.vue';
import { addToFrequentlyUsed, getEmojiCategories, hasFrequentlyUsedEmojis } from './utils';
export default {
components: {
GlIcon,
GlDropdown,
GlSearchBoxByType,
VirtualList,
Category,
EmojiList,
},
props: {
toggleClass: {
type: [Array, String, Object],
required: false,
default: () => [],
},
},
data() {
return {
currentCategory: 0,
searchValue: '',
};
},
computed: {
categoryNames() {
return CATEGORY_NAMES.filter((c) => {
if (c === FREQUENTLY_USED_KEY) return hasFrequentlyUsedEmojis();
return true;
}).map((category) => ({
name: category,
icon: CATEGORY_ICON_MAP[category],
}));
},
},
methods: {
categoryAppeared(category) {
this.currentCategory = category;
},
async scrollToCategory(categoryName) {
const categories = await getEmojiCategories();
const { top } = categories[categoryName];
this.$refs.virtualScoller.setScrollTop(top);
},
selectEmoji(name) {
this.$emit('click', name);
this.$refs.dropdown.hide();
addToFrequentlyUsed(name);
},
getBoundaryElement() {
return document.querySelector('.content-wrapper') || 'scrollParent';
},
onSearchInput() {
this.$refs.virtualScoller.setScrollTop(0);
this.$refs.virtualScoller.forceRender();
},
async onScroll(event, { offset }) {
const categories = await getEmojiCategories();
this.currentCategory = findLastIndex(Object.values(categories), ({ top }) => offset >= top);
},
},
};
</script>
<template>
<div class="emoji-picker">
<gl-dropdown
ref="dropdown"
:toggle-class="toggleClass"
:boundary="getBoundaryElement()"
menu-class="dropdown-extended-height"
no-flip
right
lazy
>
<template #button-content><slot name="button-content"></slot></template>
<gl-search-box-by-type
v-model="searchValue"
class="gl-mx-5! gl-mb-2!"
autofocus
debounce="500"
@input="onSearchInput"
/>
<div
v-show="!searchValue"
class="gl-display-flex gl-mx-5 gl-border-b-solid gl-border-gray-100 gl-border-b-1"
>
<button
v-for="(category, index) in categoryNames"
:key="category.name"
:class="{
'gl-text-black-normal! emoji-picker-category-active': index === currentCategory,
}"
type="button"
class="gl-border-0 gl-border-b-2 gl-border-b-solid gl-flex-fill-1 gl-text-gray-300 gl-pt-3 gl-pb-3 gl-bg-transparent emoji-picker-category-tab"
@click="scrollToCategory(category.name)"
>
<gl-icon :name="category.icon" :size="12" />
</button>
</div>
<emoji-list :search-value="searchValue">
<template #default="{ filteredCategories }">
<virtual-list
ref="virtualScoller"
:size="258"
:remain="1"
:bench="2"
variable
:onscroll="onScroll"
>
<div
v-for="(category, categoryKey) in filteredCategories"
:key="categoryKey"
:style="{ height: category.height + 'px' }"
>
<category :category="categoryKey" :emojis="category.emojis" @click="selectEmoji" />
</div>
</virtual-list>
</template>
</emoji-list>
</gl-dropdown>
</div>
</template>
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