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WikiLambda Vue component to represent ZObjects as a string.
@copyright 2020– Abstract Wikipedia team; see AUTHORS.txt
@license MIT
-->
<template>
<div
v-if="hasLink"
class="ext-wikilambda-app-object-to-string"
data-testid="object-to-string-link">
<div class="ext-wikilambda-app-object-to-string">
<a
v-if="isBlank"
class="ext-wikilambda-app-object-to-string__blank is-red-link"
:lang="labelData.langCode"
:dir="labelData.langDir"
@click="expand"
>{{ labelData.label }}</a>
<a
v-else
:href="link"
:lang="labelData.langCode"
:dir="labelData.langDir"
>{{ labelData.label }}</a>
</div
><span
v-if="hasChildren"
class="ext-wikilambda-app-object-to-string__children">
<span class="ext-wikilambda-app-object-to-string__divider">(</span
><span class="ext-wikilambda-app-object-to-string__child">
<template
v-for="( row, index ) in childRows"
:key="index">
<wl-z-object-to-string
:row-id="row.id"
@expand="expand"
></wl-z-object-to-string
><span
v-if="hasComma( index )"
class="ext-wikilambda-app-object-to-string__divider"
>, </span>
</template>
</span><span class="ext-wikilambda-app-object-to-string__divider">)</span>
</span>
</div>
<div
v-else
class="ext-wikilambda-app-object-to-string"
data-testid="object-to-string-text"
:lang="labelData.langCode"
:dir="labelData.langDir"
>
"{{ labelData.label }}"
</div>
</template>
<script>
const { defineComponent } = require( 'vue' );
const Constants = require( '../../Constants.js' ),
typeUtils = require( '../../mixins/typeUtils.js' ),
LabelData = require( '../../store/classes/LabelData.js' ),
{ mapGetters } = require( 'vuex' );
module.exports = exports = defineComponent( {
name: 'wl-z-object-to-string',
components: {
'wl-z-object-to-string': this
},
mixins: [ typeUtils ],
props: {
rowId: {
type: Number,
required: false,
default: 0
}
},
computed: Object.assign(
mapGetters( [
'getLabelData',
'getExpectedTypeOfKey',
'getZFunctionCallFunctionId',
'getZFunctionCallArguments',
'getZReferenceTerminalValue',
'getZStringTerminalValue',
'getZObjectTypeByRowId',
'getZObjectKeyByRowId',
'getChildrenByParentRowId',
'getUserLangCode'
] ),
{
/**
* Returns the type of the value of the the ZObject represented
* in this component. Depending on the type, we will decide what
* kind of string representation to create:
*
* Z6/String:
* * value: this.Z6K1
* * label: this.value
* * link: -
*
* Z9/Reference:
* * value: this.Z9K1
* * label: this.value | getLabelData.label
* * link: this.value | toLink
*
* Z7/Function call:
* * value: this.Z7K1
* * label: this.value | getLabelData.label
* * link: this.value | toLink
* * children: all child values except Z1K1 and Z7K1
*
* Any other object:
* * value: this.type
* * label: this.value | getLabelData.label
* * link: this.value | getLink
* * children: all child values except Z1K1
*
* @return {string}
*/
type: function () {
const noArgs = true;
return this.typeToString( this.getZObjectTypeByRowId( this.rowId ), noArgs );
},
/**
* Returns the value to represent in string format depending
* on the type:
* * In the case of function call, returns the Zid of the function.
* * In the case of terminal object, returns its terminal value.
* * In the case of any other object, returns its type.
*
* @return {string}
*/
value: function () {
if ( this.type === Constants.Z_FUNCTION_CALL ) {
return this.getZFunctionCallFunctionId( this.rowId );
}
if ( this.type === Constants.Z_STRING ) {
return this.getZStringTerminalValue( this.rowId );
}
if ( this.type === Constants.Z_REFERENCE ) {
return this.getZReferenceTerminalValue( this.rowId );
}
return this.type;
},
/**
* Returns the LabelData object for this object.
* If value is undefined, we generate the placeholder depending
* on its type.
*
* @return {LabelData}
*/
labelData: function () {
return this.isBlank ?
LabelData.fromString( this.placeholder ) :
this.getLabelData( this.value );
},
/**
* Returns the link to the object if it has any.
*
* @return {string}
*/
link: function () {
return ( this.hasLink && !this.isBlank ) ? '/view/' + this.getUserLangCode + '/' + this.value : '';
},
/**
* Returns the key of the key-value pair of this component.
*
* @return {string}
*/
key: function () {
return this.getZObjectKeyByRowId( this.rowId );
},
/**
* Returns the expected (or bound) type for the value of
* the key-value pair represented in this component.
*
* @return {string}
*/
expectedType: function () {
return this.getExpectedTypeOfKey( this.key );
},
/**
* Returns a type-dependent placeholder to be printed in
* cases of undefined values.
*
* @return {string}
*/
placeholder: function () {
let missingType = this.type;
if ( missingType === Constants.Z_STRING ) {
return this.$i18n( 'wikilambda-zobject-to-string-enter-string' ).text();
}
if ( missingType === Constants.Z_FUNCTION_CALL ) {
missingType = Constants.Z_FUNCTION;
}
if ( Constants.RESOLVER_TYPES.includes( missingType ) ) {
missingType = this.expectedType;
}
const label = missingType ?
this.getLabelData( missingType ).label :
this.getLabelData( Constants.Z_OBJECT ).label;
return this.$i18n( 'wikilambda-zobject-to-string-select-object', label ).text();
},
/**
* Returns whether the object represented should link to somewhere
* or not. Only non-blank terminal strings don't have a link.
*
* @return {boolean}
*/
hasLink: function () {
return this.isBlank || ( this.type !== Constants.Z_STRING );
},
/**
* Returns whether this object is terminal (Z6/String or Z9/Reference).
*
* @return {boolean}
*/
isTerminal: function () {
return (
( this.type === Constants.Z_REFERENCE ) ||
( this.type === Constants.Z_STRING )
);
},
/**
* Returns whether this object is blank (value is undefined)
*
* @return {boolean}
*/
isBlank: function () {
return ( this.value === undefined );
},
/**
* Returns the array of children to represent in parenthesis.
* These are the arguments in case this object is a function call,
* or the object keys in case it's a non terminal zobject.
* It excludes the key Z1K1/Type.
*
* @return {Array}
*/
childRows: function () {
if ( this.isTerminal ) {
return [];
}
if ( this.type === Constants.Z_FUNCTION_CALL ) {
return this.getZFunctionCallArguments( this.rowId );
}
return this.getChildrenByParentRowId( this.rowId )
.filter( ( row ) => ( row.key !== Constants.Z_OBJECT_TYPE ) );
},
/**
* Returns whether this object has any children to represent
*
* @return {boolean}
*/
hasChildren: function () {
return this.childRows.length > 0;
}
}
),
methods: {
/**
* Whether a ZObject child needs a trailing comma given its index
*
* @param {number} index
* @return {boolean}
*/
hasComma: function ( index ) {
return ( ( index + 1 ) < this.childRows.length );
},
/**
* Emits event 'expand' when an unselected value is clicked.
* This will propagate the event till the nearest ZObjectKeyValue
* parent, who will set the expansion flag to true.
*/
expand: function () {
this.$emit( 'expand', true );
}
}
} );
</script>
<style lang="less">
@import '../../ext.wikilambda.app.variables.less';
.ext-wikilambda-app-object-to-string {
display: inline;
.ext-wikilambda-app-object-to-string__child {
white-space: normal;
word-break: break-word;
}
.ext-wikilambda-app-object-to-string__children {
white-space: nowrap; /* Prevent wrapping */
}
.ext-wikilambda-app-object-to-string__divider {
color: @color-subtle;
white-space: nowrap; /* Prevent wrapping */
}
.ext-wikilambda-app-object-to-string__blank {
.cdx-mixin-link();
}
}
</style>
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