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<script>
import { GlDropdown, GlDropdownItem, GlDropdownDivider } from '@gitlab/ui';
import { mapGetters, mapActions } from 'vuex';
import { getLocationHash, doesHashExistInUrl } from '~/lib/utils/url_utility';
import {
DISCUSSION_FILTERS_DEFAULT_VALUE,
HISTORY_ONLY_FILTER_VALUE,
COMMENTS_ONLY_FILTER_VALUE,
DISCUSSION_TAB_LABEL,
DISCUSSION_FILTER_TYPES,
NOTE_UNDERSCORE,
} from '../constants';
import notesEventHub from '../event_hub';
export default {
components: {
GlDropdown,
GlDropdownItem,
GlDropdownDivider,
},
props: {
filters: {
type: Array,
required: true,
},
selectedValue: {
type: Number,
default: DISCUSSION_FILTERS_DEFAULT_VALUE,
required: false,
},
},
data() {
return {
currentValue: doesHashExistInUrl(NOTE_UNDERSCORE)
? DISCUSSION_FILTERS_DEFAULT_VALUE
: this.selectedValue,
defaultValue: DISCUSSION_FILTERS_DEFAULT_VALUE,
displayFilters: true,
};
},
computed: {
...mapGetters(['getNotesDataByProp', 'timelineEnabled', 'isLoading']),
currentFilter() {
if (!this.currentValue) return this.filters[0];
return this.filters.find((filter) => filter.value === this.currentValue);
},
},
created() {
if (window.mrTabs) {
const { eventHub, currentTab } = window.mrTabs;
eventHub.$on('MergeRequestTabChange', this.toggleFilters);
this.toggleFilters(currentTab);
}
notesEventHub.$on('dropdownSelect', this.selectFilter);
window.addEventListener('hashchange', this.handleLocationHash);
},
mounted() {
this.toggleCommentsForm();
},
destroyed() {
notesEventHub.$off('dropdownSelect', this.selectFilter);
window.removeEventListener('hashchange', this.handleLocationHash);
},
methods: {
...mapActions([
'filterDiscussion',
'setCommentsDisabled',
'setTargetNoteHash',
'setTimelineView',
]),
selectFilter(value, persistFilter = true) {
const filter = parseInt(value, 10);
if (filter === this.currentValue) return;
if (this.timelineEnabled && filter !== COMMENTS_ONLY_FILTER_VALUE) {
this.setTimelineView(false);
}
this.currentValue = filter;
this.filterDiscussion({
path: this.getNotesDataByProp('discussionsPath'),
filter,
persistFilter,
});
this.toggleCommentsForm();
},
toggleCommentsForm() {
this.setCommentsDisabled(this.currentValue === HISTORY_ONLY_FILTER_VALUE);
},
toggleFilters(tab) {
this.displayFilters = tab === DISCUSSION_TAB_LABEL;
},
handleLocationHash() {
const hash = getLocationHash();
if (/^note_/.test(hash) && this.currentValue !== DISCUSSION_FILTERS_DEFAULT_VALUE) {
this.selectFilter(this.defaultValue, false);
this.setTargetNoteHash(hash);
}
},
filterType(value) {
if (value === 0) {
return DISCUSSION_FILTER_TYPES.ALL;
} else if (value === 1) {
return DISCUSSION_FILTER_TYPES.COMMENTS;
}
return DISCUSSION_FILTER_TYPES.HISTORY;
},
},
};
</script>
<template>
<gl-dropdown
v-if="displayFilters"
id="discussion-filter-dropdown"
class="full-width-mobile discussion-filter-container js-discussion-filter-container"
data-qa-selector="discussion_filter_dropdown"
:text="currentFilter.title"
:disabled="isLoading"
>
<div v-for="filter in filters" :key="filter.value" class="dropdown-item-wrapper">
<gl-dropdown-item
:is-check-item="true"
:is-checked="filter.value === currentValue"
:class="{ 'is-active': filter.value === currentValue }"
:data-filter-type="filterType(filter.value)"
data-qa-selector="filter_menu_item"
@click.prevent="selectFilter(filter.value)"
>
{{ filter.title }}
</gl-dropdown-item>
<gl-dropdown-divider v-if="filter.value === defaultValue" />
</div>
</gl-dropdown>
</template>
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