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<script>
import { mapState, mapGetters, mapActions } from 'vuex';
import { GlLoadingIcon, GlButton, GlSearchBoxByType, GlLink } from '@gitlab/ui';
import { UP_KEY_CODE, DOWN_KEY_CODE, ENTER_KEY_CODE, ESC_KEY_CODE } from '~/lib/utils/keycodes';
import LabelItem from './label_item.vue';
export default {
components: {
GlLoadingIcon,
GlButton,
GlSearchBoxByType,
GlLink,
LabelItem,
},
data() {
return {
searchKey: '',
currentHighlightItem: -1,
};
},
computed: {
...mapState([
'allowLabelCreate',
'allowMultiselect',
'labelsManagePath',
'labels',
'labelsFetchInProgress',
'labelsListTitle',
'footerCreateLabelTitle',
'footerManageLabelTitle',
]),
...mapGetters(['selectedLabelsList', 'isDropdownVariantSidebar']),
visibleLabels() {
if (this.searchKey) {
return this.labels.filter(label =>
label.title.toLowerCase().includes(this.searchKey.toLowerCase()),
);
}
return this.labels;
},
},
watch: {
searchKey(value) {
// When there is search string present
// and there are matching results,
// highlight first item by default.
if (value && this.visibleLabels.length) {
this.currentHighlightItem = 0;
}
},
},
mounted() {
this.fetchLabels();
},
methods: {
...mapActions([
'toggleDropdownContents',
'toggleDropdownContentsCreateView',
'fetchLabels',
'updateSelectedLabels',
'toggleDropdownContents',
]),
isLabelSelected(label) {
return this.selectedLabelsList.includes(label.id);
},
/**
* This method scrolls item from dropdown into
* the view if it is off the viewable area of the
* container.
*/
scrollIntoViewIfNeeded() {
const highlightedLabel = this.$refs.labelsListContainer.querySelector('.is-focused');
if (highlightedLabel) {
const rect = highlightedLabel.getBoundingClientRect();
if (rect.bottom > this.$refs.labelsListContainer.clientHeight) {
highlightedLabel.scrollIntoView(false);
}
if (rect.top < 0) {
highlightedLabel.scrollIntoView();
}
}
},
/**
* This method enables keyboard navigation support for
* the dropdown.
*/
handleKeyDown(e) {
if (e.keyCode === UP_KEY_CODE && this.currentHighlightItem > 0) {
this.currentHighlightItem -= 1;
} else if (
e.keyCode === DOWN_KEY_CODE &&
this.currentHighlightItem < this.visibleLabels.length - 1
) {
this.currentHighlightItem += 1;
} else if (e.keyCode === ENTER_KEY_CODE && this.currentHighlightItem > -1) {
this.updateSelectedLabels([this.visibleLabels[this.currentHighlightItem]]);
} else if (e.keyCode === ESC_KEY_CODE) {
this.toggleDropdownContents();
}
if (e.keyCode !== ESC_KEY_CODE) {
// Scroll the list only after highlighting
// styles are rendered completely.
this.$nextTick(() => {
this.scrollIntoViewIfNeeded();
});
}
},
handleLabelClick(label) {
this.updateSelectedLabels([label]);
if (!this.allowMultiselect) this.toggleDropdownContents();
},
},
};
</script>
<template>
<div class="labels-select-contents-list js-labels-list" @keydown="handleKeyDown">
<gl-loading-icon
v-if="labelsFetchInProgress"
class="labels-fetch-loading position-absolute d-flex align-items-center w-100 h-100"
size="md"
/>
<div v-if="isDropdownVariantSidebar" class="dropdown-title d-flex align-items-center pt-0 pb-2">
<span class="flex-grow-1">{{ labelsListTitle }}</span>
<gl-button
:aria-label="__('Close')"
variant="link"
size="small"
class="dropdown-header-button p-0"
icon="close"
@click="toggleDropdownContents"
/>
</div>
<div class="dropdown-input" @click.stop="() => {}">
<gl-search-box-by-type v-model="searchKey" :autofocus="true" />
</div>
<div v-show="!labelsFetchInProgress" ref="labelsListContainer" class="dropdown-content">
<ul class="list-unstyled mb-0">
<li v-for="(label, index) in visibleLabels" :key="label.id" class="d-block text-left">
<label-item
:label="label"
:highlight="index === currentHighlightItem"
@clickLabel="handleLabelClick(label)"
/>
</li>
<li v-show="!visibleLabels.length" class="p-2 text-center">
{{ __('No matching results') }}
</li>
</ul>
</div>
<div v-if="isDropdownVariantSidebar" class="dropdown-footer">
<ul class="list-unstyled">
<li v-if="allowLabelCreate">
<gl-link
class="d-flex w-100 flex-row text-break-word label-item"
@click="toggleDropdownContentsCreateView"
>{{ footerCreateLabelTitle }}</gl-link
>
</li>
<li>
<gl-link :href="labelsManagePath" class="d-flex flex-row text-break-word label-item">{{
footerManageLabelTitle
}}</gl-link>
</li>
</ul>
</div>
</div>
</template>
|
