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WikiLambda Vue component for selecting a Z6095/Wikidata reference item.
@copyright 2020– Abstract Wikipedia team; see AUTHORS.txt
@license MIT
-->
<template>
<div
class="ext-wikilambda-app-wikidata-enum"
data-testid="wikidata-enum"
>
<wl-z-object-key-value
v-if="!edit"
:key-path="`${ keyPath }.${ selectedEntityKey }`"
:object-value="objectValue[ selectedEntityKey ]"
:edit="edit"
:skip-key="true"
></wl-z-object-key-value>
<div v-else class="ext-wikilambda-app-wikidata-enum__select">
<cdx-select
:selected="selectedEntityId"
:default-label="enumSelectPlaceholder"
:menu-items="enumSelectMenuItems"
:menu-config="enumSelectConfig"
data-testid="wikidata-enum-select"
@update:selected="onSelect"
></cdx-select>
<cdx-progress-indicator
v-if="isLoading"
class="ext-wikilambda-app-wikidata-enum__loader"
>
{{ i18n( 'wikilambda-loading' ).text() }}
</cdx-progress-indicator>
</div>
</div>
</template>
<script>
const { computed, defineComponent, inject, onMounted, ref, watch } = require( 'vue' );
const Constants = require( '../../../Constants.js' );
const useZObject = require( '../../../composables/useZObject.js' );
const useMainStore = require( '../../../store/index.js' );
// Codex components
const { CdxSelect, CdxProgressIndicator } = require( '../../../../codex.js' );
module.exports = exports = defineComponent( {
name: 'wl-wikidata-enum',
components: {
'cdx-select': CdxSelect,
'cdx-progress-indicator': CdxProgressIndicator
},
props: {
keyPath: {
type: String,
required: true
},
objectValue: {
type: Object,
required: true
},
edit: {
type: Boolean,
required: true
},
type: {
type: String,
required: true
}
},
emits: [ 'set-value' ],
setup( props, { emit } ) {
const i18n = inject( 'i18n' );
const { getWikidataEntityId } = useZObject( { keyPath: props.keyPath } );
const store = useMainStore();
// Constants
const enumSelectConfig = { visibleItemLimit: 5 };
// State
const loadingCount = ref( 0 );
// Enum data
/**
* Returns the type of Wikidata entities of this enum type. It does that by
* getting the type object from the library store and returning its Z6884K1.
* Example: returns 'Z6095' for a Wikidata reference item enum.
*
* @return {string|undefined}
*/
const entityType = computed( () => store.getTypeOfWikidataEnum( props.type ) );
/**
* Returns the array of Wikidata entity Ids of this in enum type.
* It does that by getting the type object from the library store and
* returning the terminal values of its Z6884K2 key.
* E.g. [ 'L123', 'L345', 'L567' ]
*
* @return {Array<string>}
*/
const wikidataIds = computed( () => store.getReferencesIdsOfWikidataEnum( props.type ) );
/**
* Returns the key for the selected entity
* (key K1 of the wikidata enum type)
*
* @return {string}
*/
const selectedEntityKey = computed( () => `${ props.type }K1` );
/**
* Returns the terminal Wikidata Id of the selected entity, or undefined
* if nothing is selected yet.
* E.g. 'L313289'
*
* @return {string|null}
*/
const selectedEntityId = computed( () => {
const selectedEntity = props.objectValue[ selectedEntityKey.value ];
const simplifiedType = Constants.WIKIDATA_SIMPLIFIED_TYPES[ entityType.value ];
return selectedEntity ?
getWikidataEntityId( selectedEntity, simplifiedType ) || null :
null;
} );
// Selector display
/**
* Returns the placeholder text for the Wikidata enum selector.
* Falls back to a generic message if no type-specific placeholder is found.
*
* @return {string}
*/
const enumSelectPlaceholder = computed( () => {
const type = Constants.WIKIDATA_SIMPLIFIED_TYPES[ entityType.value ];
const msg = Constants.WIKIDATA_SELECTOR_PLACEHOLDER_MSG[ type ];
return i18n( msg || 'wikilambda-wikidata-entity-selector-placeholder' ).text();
} );
/**
* Builds the menu items representing the available enum values.
* Each item contains a label (from Wikidata or the ID) and the Wikidata ID as value.
*
* @return {Array<{label: string, value: string}>}
*/
const enumSelectMenuItems = computed( () => wikidataIds.value.map( ( id ) => {
const labelData = store.getWikidataEntityLabelData( entityType.value, id );
return {
label: labelData ? labelData.label : id,
value: id
};
} ) );
/**
* Returns true if currently loading Wikidata entities.
*
* @return {boolean}
*/
const isLoading = computed( () => loadingCount.value > 0 );
// Actions
/**
* Emit a set-value event to persist in the store
* the changes made by a new Wikidata enum selection.
*
* @param {string} value
*/
function onSelect( value ) {
const keyPath = [
`${ props.type }K1`,
`${ entityType.value }K1`,
Constants.Z_STRING_VALUE
];
emit( 'set-value', { value, keyPath } );
}
// Data fetching
/**
* Fetches all the Wikidata entities in the selector component (only for edit)
*/
function fetchEntities() {
if ( !props.edit ) {
return;
}
const promise = store.fetchWikidataEntitiesByType( {
type: entityType.value,
ids: wikidataIds.value
} );
if ( promise && typeof promise.then === 'function' ) {
loadingCount.value++;
promise.finally( () => {
loadingCount.value = Math.max( 0, loadingCount.value - 1 );
} );
}
}
// Watchers
watch( wikidataIds, () => {
fetchEntities();
} );
// Lifecycle hooks
onMounted( () => {
fetchEntities();
} );
return {
enumSelectConfig,
enumSelectMenuItems,
enumSelectPlaceholder,
isLoading,
onSelect,
selectedEntityId,
selectedEntityKey,
i18n
};
},
beforeCreate: function () {
this.$options.components[ 'wl-z-object-key-value' ] = require( './../ZObjectKeyValue.vue' );
}
} );
</script>
<style lang="less">
@import '../../../ext.wikilambda.app.variables.less';
.ext-wikilambda-app-wikidata-enum {
.ext-wikilambda-app-wikidata-enum__select {
position: relative;
display: flex;
gap: @spacing-100;
align-items: center;
}
}
</style>
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