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WikiLambda Vue component for Z9/Reference objects.
@copyright 2020– Abstract Wikipedia team; see AUTHORS.txt
@license MIT
-->
<template>
<div class="ext-wikilambda-app-reference" data-testid="z-reference">
<template v-if="!edit">
<a
v-if="valueLabel"
class="ext-wikilambda-app-link"
data-testid="edit-link"
:lang="valueLabel.langCode"
:dir="valueLabel.langDir"
:href="valueUrl"
>{{ valueLabel.label }}</a>
</template>
<template v-else>
<wl-z-object-selector
:disabled="disabled"
:row-id="rowId"
:selected-zid="value"
:type="type"
:return-type="returnType"
:exclude-zids="excludeZids"
data-testid="z-reference-selector"
@input="setValue"
></wl-z-object-selector>
</template>
</div>
</template>
<script>
const { defineComponent } = require( 'vue' );
const Constants = require( '../../Constants.js' ),
ZObjectSelector = require( './../base/ZObjectSelector.vue' ),
typeUtils = require( '../../mixins/typeUtils.js' ),
{ mapGetters } = require( 'vuex' );
module.exports = exports = defineComponent( {
name: 'wl-z-reference',
components: {
'wl-z-object-selector': ZObjectSelector
},
mixins: [ typeUtils ],
props: {
rowId: {
type: Number,
required: false,
default: 0
},
edit: {
type: Boolean,
required: true
},
expectedType: {
type: [ String, Object ],
required: true
},
parentExpectedType: {
type: [ String, Object ],
required: false,
default: Constants.Z_OBJECT
},
disabled: {
type: Boolean,
default: false
}
},
computed: Object.assign(
mapGetters( [
'getLabelData',
'getParentRowId',
'getZObjectKeyByRowId',
'getZReferenceTerminalValue',
'getUserLangCode'
] ),
{
/**
* Returns the value of the selected reference.
*
* @return {string}
*/
value: function () {
return this.getZReferenceTerminalValue( this.rowId );
},
/**
* Returns the string value of the label for the selected reference.
* If no label is found, returns undefined.
*
* @return {LabelData|undefined}
*/
valueLabel: function () {
return this.value ? this.getLabelData( this.value ) : undefined;
},
/**
* Returns the link to the page of the selected reference.
*
* @return {string}
*/
valueUrl: function () {
return '/view/' + this.getUserLangCode + '/' + this.value;
},
/**
* Returns the bound type to configure the ZObjectSelector
* If `returnType` is not set and `expectedType` is a valid bound type (not `Z_OBJECT`),
* the bound type is returned as a string. Otherwise, returns an empty string.
* The type is converted to a string with no arguments if it is a generic type.
*
* @return {string} The bound type as a string, or an empty string if not applicable.
*/
type: function () {
return this.returnType || !this.expectedType || this.expectedType === Constants.Z_OBJECT ?
'' :
this.typeToString( this.expectedType, true );
},
/**
* Returns the bound return type to configure the ZObjectSelector
* If `key` is `Z_FUNCTION_CALL_FUNCTION` and `parentExpectedType` is a valid bound type
* the bound return type is returned as a string. Otherwise, returns an empty string.
* We understand that the parent type is unbound when it expects Z1/Object or a
* resolver type (Z7/Function call, Z9/Reference, Z18/Argument reference), as they
* can resolve to anything.
* The type is converted to a string with no arguments if it is a generic type.
*
* @return {string} The bound return type as a string, or an empty string if not applicable.
*/
returnType: function () {
const unboundTypes = [ Constants.Z_OBJECT, ...Constants.RESOLVER_TYPES ];
return ( this.key === Constants.Z_FUNCTION_CALL_FUNCTION &&
!unboundTypes.includes( this.parentExpectedType ) ) ?
this.typeToString( this.parentExpectedType, true ) :
'';
},
/**
* Returns the key that contains the reference value
* represented in this component.
*
* @return {string} The key associated with the reference value.
*/
key: function () {
return this.getZObjectKeyByRowId( this.rowId );
},
/**
* Returns the key of the parent
*
* @return {string}
*/
parentKey: function () {
return this.getZObjectKeyByRowId( this.getParentRowId( this.rowId ) );
},
/**
* Returns the list of excluded Zids to restrict in the lookup
* component depending on the current Key. Currently only for the
* content type of Z2K2, the keys from EXCLUDE_FROM_PERSISTENT_CONTENT
* are intentionally excluded.
*
* @return {Array}
*/
excludeZids: function () {
return (
( this.key === Constants.Z_OBJECT_TYPE ) &&
( this.parentKey === Constants.Z_PERSISTENTOBJECT_VALUE )
) ? Constants.EXCLUDE_FROM_PERSISTENT_CONTENT : [];
}
}
),
methods: {
/**
* Emits the event setValue so that ZObjectKey can update
* the terminal value in the ZObject data table. ZObjectSelector
* input event will always be called with a valid value from the
* lookup list, never with an empty value.
*
* @param {string} value
*/
setValue: function ( value ) {
const keyPath = ( this.key !== Constants.Z_REFERENCE_ID ) ?
[ Constants.Z_REFERENCE_ID ] :
[];
this.$emit( 'set-value', { keyPath, value } );
}
}
} );
</script>
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